JPWO2018096676A1 - Numerical control device and tool management generation program - Google Patents

Abstract

The numerical control device (1) controls the machine tool (100) including a plurality of attachment points to which the tool (200) is attached. The numerical control device (1) stores at least tool information including a tool name which is the name of each tool (200), and is attached to at least one of a storage unit for storing each tool (200) or each tool (200). A storage medium access unit (60) capable of reading at least the tool information of the stored storage medium (300), and each tool generated based on the tool information of each tool (200) read by the storage medium access unit (60). A storage unit that stores a tool management table (52) in which the number of the attachment location of the tool (200) and the tool name are associated with each other.

Description

  The present invention relates to a numerical control device and a tool management generation program for controlling a machine tool.

  The format of the tool command in the machining program of the numerical control device disclosed in Patent Document 1 is the format of identifier “T” + number. The numbers indicate the location where the tool is attached or indicate the ID (Identification) of the tool.

Japanese Patent Laid-Open No. 03-166030

  In the machining program of the numerical control device disclosed in Patent Document 1, since the format of the tool command is the identifier “T” + numeric format, when the operator of the machine tool controlled by the numerical control device attaches the tool to the machine tool In addition, it is not easy to recognize the name of the tool by looking at the above-mentioned numbers of the tool command of the machining program, and it is difficult to select the tool.

  In order to solve this problem, the operator prepares a correspondence table in which the attachment location of the tool and the name of the tool are associated in advance, and performs the troublesome work of attaching the tool to the machine tool according to the correspondence table. There was a risk of attaching an incorrect tool to the mounting location when the contents of were recognized incorrectly. The numerical control device disclosed in Patent Document 1 has a problem that it is not easy for the operator to set up, and the operator is likely to make a setup error.

  The present invention has been made in view of the above, and an object of the present invention is to obtain a numerical control device that can be easily set up by an operator and that can suppress setup errors of the operator.

  In order to solve the above-described problems and achieve the object, the present invention is a numerical control device that controls a machine tool including a plurality of attachment points to which tools are attached. The numerical control device stores at least tool information including the name of each tool, and stores at least one of the storage unit that accommodates each tool or a storage medium attached to at least one of the tools so that the tool information can be read. And a storage unit that stores a tool management table that is generated based on the tool information of each tool read by the storage medium access unit and that associates the attachment location of each tool with the name of each tool.

  The numerical control device according to the present invention has an effect that machining stop due to a program error and defective workpiece machining can be prevented.

The figure which shows the structure of the machine tool which the numerical control apparatus which concerns on Embodiment 1 controls. Functional block diagram showing the configuration of the numerical control device according to the first embodiment The figure which shows an example of the tool information memorize | stored in the storage medium attached to the tool read by the numerical control apparatus which concerns on Embodiment 1. The front view which shows the external appearance of the numerical control apparatus which concerns on Embodiment 1. The figure which shows an example of the tool management table which the information generation part of the numerical control apparatus which concerns on Embodiment 1 produces | generates. The figure which shows an example of the machining program memorize | stored in the memory | storage means of the numerical control apparatus which concerns on Embodiment 1. The figure which shows an example of the machining program which rewritten in order for the numerical control apparatus to execute the machining program shown in FIG. The flowchart which shows the tool management table production | generation of the numerical control apparatus which concerns on Embodiment 1, and the method of editing a machining program The figure which shows the tool management screen and machining program edit screen which were displayed on the display screen of the display part in step ST7 of FIG. The side view which shows the principal part of the machine tool from which the tool information of the storage medium attached to the tool is read by the numerical control apparatus which concerns on Embodiment 2 The side view which shows the principal part of the machine tool from which the tool information of the storage medium attached to the tool is read by the numerical control apparatus which concerns on Embodiment 3 Functional block diagram showing the configuration of the numerical control device according to the fourth embodiment The figure which shows an example of the tool management table which the information generation part of the numerical control apparatus which concerns on Embodiment 4 produces | generates. The figure which shows the tool management screen and machining program edit screen which were displayed on the display screen of the display part of the numerical control apparatus shown in FIG. The figure which shows the tool management screen displayed on the display screen of the display part of the numerical control apparatus which concerns on Embodiment 5, and the machining program edit screen in edit. The figure which shows the tool management screen shown in FIG. 15, and the machining program edit screen after edit The flowchart which shows the method of editing the machining program of the numerical control apparatus which concerns on Embodiment 6. The figure which shows an example of the tool name conversion table which the numerical control apparatus which concerns on Embodiment 6 produces | generates The figure which shows an example of the tool management screen of the tool management table which the numerical control apparatus which concerns on Embodiment 6 produces | generates The figure which shows the state by which the tool name of the tool name conversion table shown by FIG. 18 was rewritten. The figure which shows an example of the tool management screen of the tool management table corresponding to the tool name conversion table shown by FIG. The flowchart which shows the method of editing the tool name of the numerical control apparatus which concerns on Embodiment 7. FIG. The figure which shows an example of the machining program which the memory | storage means of the numerical control apparatus which concerns on Embodiment 8 memorize | stored. The flowchart which shows the method of writing the tool information of the numerical control apparatus which concerns on Embodiment 9. FIG. The figure which shows the hardware constitutions of the numerical control apparatus which concerns on each embodiment

  Hereinafter, a numerical controller and a tool management generation program according to embodiments will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating a configuration of a machine tool controlled by the numerical control device according to the first embodiment. FIG. 2 is a functional block diagram illustrating a configuration of the numerical control device according to the first embodiment. FIG. 3 is a diagram illustrating an example of tool information stored in a storage medium attached to the tool, which is read by the numerical control device according to the first embodiment. FIG. 4 is a front view showing the appearance of the numerical control device according to the first embodiment. FIG. 5 is a diagram illustrating an example of a tool management table generated by the information generation unit of the numerical control device according to the first embodiment.

  The numerical controller 1 according to the first embodiment controls the machine tool 100 as shown in FIG. As shown in FIG. 1, the machine tool 100 includes an apparatus main body 101 installed on the floor of a factory, a table 102 that is movably provided on the apparatus main body 101, and on which a work is placed and fixed. And a main shaft 104 that is supported by a pillar portion 103 that extends in the direction and rotates the tool 200 about a Z axis parallel to the vertical direction. The machine tool 100 includes a tool magazine 105 to which a plurality of tools 200 are attached, and a tool arm 106 for exchanging the tool 200 attached to the main shaft 104.

  The table 102 is provided movably along an X-axis direction parallel to the horizontal direction and a Y-axis direction parallel to the horizontal direction and orthogonal to the X-axis direction. The main shaft 104 is provided so as to be movable in the Z-axis direction, and the tool 200 is attached to rotate the attached tool 200 around the central axis. The tool magazine 105 is a storage unit that stores the tool 200. The tool magazine 105 includes a plurality of attachment locations T to which the tools 200 are attached. The plurality of attachment points T are arranged in a ring shape. The tool magazine 105 can move the attachment location T along an annular shape. Each attachment location T is numbered with a natural number. The tool arm 106 removes the tool 200 from the tool magazine 105 and attaches the tool 200 to the spindle 104, and attaches the tool 200 attached to the spindle 104 to the tool magazine 105. The tool arm 106 replaces the tool 200 attached to the main shaft 104.

  Further, as shown in FIG. 2, the machine tool 100 includes a tool movement control unit 107 that rotates the tool magazine 105 in accordance with a tool magazine movement command input from the numerical controller 1, and a servo motor that moves the table 102 in the X-axis direction. 111 and an X-axis servo control unit 121 that controls the servo motor 111 in accordance with an X-axis movement amount command input from the numerical controller 1. The servo motor 111 moves the table 102 along the X-axis direction. The X-axis servo control unit 121 is a servo amplifier that converts an X-axis movement amount command into a three-phase current and outputs the current to the servo motor 111. The X-axis movement command is a linear movement command for rotating the output shaft of the servo motor 111 around the central axis and moving the table 102 in the X-axis direction.

  As shown in FIG. 2, the machine tool 100 includes a Y-axis servo control unit 122 that controls the servo motor 112 in accordance with a Y-axis movement command input from the numerical controller 1. The servo motor 112 moves the table 102 along the Y-axis direction. The Y-axis servo control unit 122 is a servo amplifier that converts a Y-axis movement amount command into a three-phase current and outputs the current to the servo motor 112. The Y-axis movement command is a linear movement command for rotating the output shaft of the servo motor 112 around the central axis and moving the table 102 in the Y-axis direction.

  As shown in FIG. 2, the machine tool 100 includes a Z-axis servo control unit 123 that controls the servo motor 113 in accordance with a Z-axis movement amount command input from the numerical controller 1. The servo motor 113 moves the spindle head along the Z-axis direction. The Z-axis servo control unit 123 is a servo amplifier that converts a Z-axis movement amount command into a three-phase current and outputs the current to the servo motor 113. The Z-axis movement command is a linear movement command that rotates the output shaft of the servo motor 113 around the central axis and moves the spindle head in the Z-axis direction.

  As shown in FIG. 2, the machine tool 100 includes a spindle motor 114 that can rotate around the spindle 104 about a central axis, and a spindle motor control unit 124 that controls the spindle motor 114 according to a rotation command input from the numerical controller 1. Prepare. The spindle motor control unit 124 is a servo amplifier that converts a rotation command into a three-phase current and outputs it to the spindle motor 114. The rotation command is a rotation command for rotating the main shaft 104 around the central axis of the main shaft 104. In the first embodiment, the machine tool 100 is a machining center, but is not limited to a machining center.

  As shown in FIG. 2, the machine tool 100 includes a tool movement control unit 107 that controls the motor 110 in accordance with a tool magazine movement command input from the numerical controller 1. The motor 110 rotates a plurality of tools 200 attached to the tool magazine 105 along an annular shape where a plurality of attachment locations T are arranged. The tool movement control unit 107 is a servo amplifier that converts a tool magazine movement command into a three-phase current and outputs it to the motor 110. The tool magazine movement command is a command for rotating the tool magazine 105 by rotating the output shaft of the motor 110 around the central axis.

  In the machine tool 100, a storage medium 300 capable of reading and writing information from the outside is attached to each tool 200 attached to an attachment location T of the spindle 104 and the tool magazine 105. The storage medium 300 may be attached to the tool magazine 105 instead of the tool 200, or may be attached to both the tool magazine 105 and the tool 200. That is, the storage medium may be attached to at least one of the tool magazine 105 or the tool 200. In Embodiment 1, the storage medium 300 is an IC (Integrated Circuit) tag, but is not limited to this.

  The storage medium 300 stores tool information TJ shown in FIG. 3 that is information about the attached tool 200. As shown in FIG. 3, the tool information TJ includes a tool name TJ1 that is the name of the attached tool 200, a correction amount TJ2 of the attached tool 200, and a tool life TJ3 that is the life of the attached tool 200. Is included. The tool name TJ1 indicates the name of the attached tool 200. The correction amount TJ2 of the tool 200 is a value for the machine tool 100 to correct the movement amounts in the X axis direction, the Y axis direction, and the Z axis direction. In the first embodiment, the correction amount TJ2 of the tool 200 includes a tool length TJ2A that is the length of the tool 200, a tool diameter TJ2B that is the diameter of the tool 200, and a tool wear TJ2C that is the wear amount of the tool 200. It is out. In the first embodiment, the tool life TJ3 indicates the usable life time of each tool 200, but may indicate the number of times each tool 200 is replaced.

  The numerical controller 1 is a computer that performs numerical control of the machine tool 100. As shown in FIG. 2, the numerical control device 1 includes a display unit 10, an external input unit 20, a storage medium access unit 60, and a control calculation unit 30 that is an execution unit. As shown in FIG. 4, the display unit 10 includes a display screen 10 a that is exposed to the outside of the housing 1 </ b> A of the numerical control device 1 and can display information. The display screen 10a is provided with a menu column 10b for selecting information to be displayed on the display screen 10a. The menu column 10b includes a plurality of menus 10c. The menu 10c has a one-to-one correspondence with information displayed on the display screen 10a. The display unit 10 is exemplified by a liquid crystal display device. The external input unit 20 receives an operation input from a user. The external input unit 20 accepts an operation input from a user, and enables information to be input to the control calculation unit 30. The external input unit 20 includes a plurality of menu keys 21 that correspond one-to-one with each menu 10c in the menu column 10b shown in FIG. 4 and a keyboard 22 arranged next to the display unit 10.

  The storage medium access unit 60 can read the tool information TJ of the storage medium 300 attached to each tool 200 and can write information to the storage medium 300 attached to each tool 200. In the first embodiment, the storage medium access unit 60 is configured by a reader device, but is not limited to the reader device.

  The control calculation unit 30 displays the input processing unit 31 that receives information from the external input unit 20, the information generation unit 38, the storage unit 50, the machining program analysis processing unit 40, and the display screen 10 a of the display unit 10. A screen display processing unit 32 that outputs information, an interpolation processing unit 70, and a tool movement control means 35 that outputs a tool magazine movement command to the tool movement control unit 107 of the machine tool 100 are provided. The control calculation unit 30 includes a built-in PLC (Programmable Logic Controller) 36, a machine control signal processing unit 34, an acceleration / deceleration processing unit 37, an axis data output unit 39, and a setting unit 33. In addition, the control calculation unit 30 includes a communication unit 80 that can communicate with the external computer 400 and a storage medium reading device 90 that can read information in the external storage medium 500.

  Based on the tool information TJ of each tool 200 read by the storage medium access unit 60 and the tool magazine movement command from the tool movement control means 35, the information generation unit 38 creates the tool management table 52 shown in FIG. It generates and outputs to the storage means 50 which is a storage unit. The storage unit 50 receives the tool management table 52 generated by the information generation unit 38 from the information generation unit 38 and stores it. The tool management table 52 associates the number of the attachment location T of each tool 200, each tool name TJ1, the correction amount TJ2 of each tool 200, and each tool life TJ3. In the first embodiment, the tool management table 52 associates the number of the attachment location T, the tool name TJ1, the tool length TJ2A, the tool diameter TJ2B, the tool wear TJ2C, and the tool life TJ3.

  In the first embodiment, the tool management table 52 is generated by the information generation unit 38 provided in the numerical controller 1, but the device that generates the tool management table 52 is not limited to the numerical controller 1. The place where the tool management table is generated is not limited to the place where the numerical control device 1 is installed. As an example, the tool management table 52 may be generated by a computer 400 external to the numerical controller 1 or may be generated by a computer that exists on a network to which the numerical controller 1 or the external computer 400 can be connected. Good.

  The storage means 50 stores a parameter 51, a plurality of machining programs 53, a tool management table 52, screen display data 54, and a tool management generation program 56 for creating the tool management table 52 shown in FIG. The common area 55 is provided. FIG. 6 is a diagram illustrating an example of a machining program stored in the storage unit of the numerical control device according to the first embodiment. FIG. 7 is a diagram illustrating an example of a machining program in which the machining program illustrated in FIG. 6 is rewritten so that the numerical control device executes the machining program.

  The machining program 53 corresponds to a workpiece to be machined by the machine tool 100. As shown in FIG. 6, the machining program 53 is described by T codes 53a and 53b, S code, M code, and G code 53c, which are tool commands. The machining program 53 shown as an example in FIG. 6 includes two T codes 53a and 53b and a G code 53c. However, the machining program 53 is not limited to the one shown in FIG.

  The T codes 53a and 53b indicate the tool 200 used for machining, and the first identifier is indicated by “T” in the first embodiment. The T codes 53a and 53b of the first embodiment are configured by an identifier “T” and “tool name”. The G code 53c is a movement command describing how the machine tool 100 moves the tool 200 for machining a workpiece.

  In the numerical controller 1, the machining program 53 is selected in advance by the operator using a function called operation search. The automatic activation of the machining program 53 is input to the ladder program 36A via an unillustrated I / O (Input / Output) interface, and whether or not automatic activation is possible is determined by the ladder program 36A. And input to the machine control signal processing unit 34. The machine control signal processing unit 34 activates the machining program analysis processing unit 40, reads the machining program 53 searched in advance by the machining program analysis processing unit 40, and starts analysis.

  The machining program analysis processing unit 40 includes a tool name analysis unit 41 and a tool name conversion unit 42 which is a conversion unit. The tool name analysis means 41 reads the machining program 53 one block at a time, determines whether or not the read blocks are T codes 53a and 53b, and if they are T codes 53a and 53b, they are included in the T codes 53a and 53b. “Tool name” to be extracted. The tool name conversion means 42 extracts from the tool management table 52 the same tool name TJ1 as the “tool name” of the block determined by the tool name analysis means 41 as the T codes 53a and 53b, and corresponds to the extracted tool name TJ1. The number of the attached attachment location T is extracted.

  The tool name conversion means 42 converts the “tool name” of the block determined by the tool name analysis means 41 as the T codes 53 a and 53 b into the number of the attachment location T extracted from the tool management table 52. Thus, the tool name conversion means 42 converts the “tool name” of the T codes 53 a and 53 b included in the machining program 53 into the number of the attachment location T with reference to the tool management table 52. In the first embodiment, the tool name conversion means 42 attaches T in the tool management table 52 shown in FIG. 5 of the tool 200 whose “tool name” of the T code 53a of the machining program 53 shown in FIG. 6 is “Drill_1”. Since the tool number conversion means 42 converts “Drill_1” of the machining program 53 to “T1” as shown in FIG. 7, the T code 53a shown in FIG. The machining program 53 shown in FIG. 6 is rewritten to the machining program 53 ′ shown in FIG. The tool name conversion means 42 is “2” as the number of the attachment location T in the tool management table 52 shown in FIG. 5 where the “tool name” of the T code 53b of the machining program 53 shown in FIG. 7, “Tap — 1” of the machining program 53 is converted to “T2”, and the T code 53b shown in FIG. 6 is rewritten to the T code 53b ′ shown in FIG.

  As shown in FIG. 7, the control calculation unit 30 follows the machining program 53 ′ obtained by converting the T codes 53 a and 53 b, an X-axis movement amount command, a Y-axis movement amount command, a Z-axis movement amount command, Generate a rotation command. The control calculation unit 30 supplies the generated movement amount command to the servo control units 121, 122, 123 and the spindle motor control unit 124 via the interpolation processing unit 70, the acceleration / deceleration processing unit 37 and the axis data output unit 39. The X-axis servo control unit 121, the Y-axis servo control unit 122, the Z-axis servo control unit 123, and the main shaft motor control unit 124 are respectively an X-axis movement amount command input from the control calculation unit 30 and a Y-axis movement. The servo motors 111, 112, 113 and the spindle motor 114 are driven according to the amount command, the Z-axis movement amount command, and the rotation command. In this way, the control calculation unit 30 executes the T codes 53a ′ and 53b ′ including the numbers of the attachment locations T converted by the tool name conversion means 42.

  Further, the control calculation unit 30 inputs a signal for automatically starting the selected machining program 53 to the machine control signal processing unit 34 via the built-in PLC 36. The machine control signal processing unit 34 instructs the machining program analysis processing unit 40 via the storage unit 50 to start analyzing the selected machining program 53. In addition, the control calculation unit 30 performs an analysis process on each block (each row) of the machining program 53 in which the machining program analysis processing unit 40 has converted the T codes 53a and 53b. If the analyzed block (row) includes T code 53a, 53b, S code, or M code other than the G code 53c, the control calculation unit 30 stores the analysis result in the storage means 50 and the machine control signal processing unit 34. To the built-in PLC 36. If the G code 53c is included in the analyzed line, the control calculation unit 30 outputs the analysis result to the interpolation processing unit 70.

  When the T-codes 53a and 53b are input, the built-in PLC 36 outputs a signal for executing the next block of the machining program 53 to the machine control signal processing unit 34 in accordance with the ladder program 36A.

  The interpolation processing unit 70 receives the position command that is the analysis result from the control calculation unit 30, performs interpolation processing on the position command, and supplies the movement amount that is the result of the interpolation processing to the acceleration / deceleration processing unit 37. The interpolation processing unit 70 includes an X-axis interpolation processing unit 71 that performs interpolation processing in the X direction, a Y-axis interpolation processing unit 72 that performs interpolation processing in the Y direction, and a Z-axis interpolation processing unit 73 that performs interpolation processing in the Z direction. Is provided.

  The acceleration / deceleration processing unit 37 performs acceleration / deceleration processing on the result of the interpolation processing supplied from the interpolation processing unit 70. The acceleration / deceleration processing unit 37 outputs the acceleration / deceleration processing result regarding the X axis, Y axis, Z axis, and main axis C axis to the axis data output unit 39. In the case of a spindle rotation command, there is no acceleration / deceleration and a rotation step command is sent to the spindle amplifier. The axis data output unit 39 outputs the input acceleration / deceleration processing results to the servo motors 111, 112, 113 and the spindle motor 114 via the servo controllers 121, 122, 123 and the spindle motor controller 124.

  The setting unit 33 includes machining program editing means 33A that edits the machining program 53 in accordance with an operation input from the user input from the external input unit 20 via the input processing unit 31. The screen display processing unit 32 includes a management table display unit 32A that displays the tool management table 52 stored in the storage unit 50 on the display screen 10a.

  The communication means 80 receives the machining program 53 created by the external computer 400 and outputs the inputted machining program 53 to the storage means 50. The storage medium reading device 90 reads the machining program 53 stored in the external storage medium 500 and outputs the read machining program 53 to the storage unit 50. In the first embodiment, the external storage medium 500 is configured by an SD (Secure Digital) card, but is not limited to an SD card.

  Next, an operation in which the numerical control device 1 generates the tool management table 52 and edits the machining program 53 will be described. FIG. 8 is a flowchart showing a method for generating a tool management table and editing a machining program of the numerical controller according to the first embodiment. FIG. 9 is a diagram showing a tool management screen and a machining program editing screen displayed on the display screen of the display unit in step ST7 of FIG.

  First, the control calculation unit 30 of the numerical control device 1 receives an operation on the external input unit 20, executes the tool management generation program 56, and stores it in the storage medium 300 attached to each tool 200 from the external input unit 20. It is determined whether or not a command for reading the tool information TJ is received (step ST1). When it is determined that the command for reading the tool information TJ stored in the storage medium 300 attached to each tool 200 is not received from the external input unit 20 (step ST1: No), the control calculation unit 30 repeats step ST1. . When it is determined that the command for reading the tool information TJ stored in the storage medium 300 attached to each tool 200 is received from the external input unit 20 (step ST1: Yes), the control calculation unit 30 uses the tool movement control unit 35. The tool magazine 105 is moved, and the tool information TJ is read from the storage medium 300 of the tool 200 attached to each attachment location T of the tool magazine 105 (step ST2). Step ST2 is a reading step of reading the tool information TJ of the storage medium 300 attached to each tool 200.

  The control calculation unit 30 of the numerical controller 1 generates a tool management table 52 based on the read tool information TJ (step ST3). Step ST3 is an information generation step for generating the tool management table 52 based on the tool information TJ of each tool 200 read in step ST2. Whether or not the control calculation unit 30 of the numerical control device 1 has received a display command for displaying the tool management screen MS shown in FIG. 9 on the display screen 10a showing the tool management table 52 generated by the user via the external input unit 20. Is determined (step ST4). When it is determined that the command for displaying the tool management screen MS shown in FIG. 9 on the display screen 10a has not been received (step ST4: No), the control calculation unit 30 of the numerical controller 1 repeats step ST4. When it is determined that the command for displaying the tool management screen MS on the display screen 10a is received (step ST4: Yes), the control calculation unit 30 of the numerical control device 1 displays the tool management screen MS as shown in FIG. 10a is displayed (step ST5).

  The control calculation unit 30 of the numerical control apparatus 1 determines whether or not a command for displaying the machining program editing screen ES shown in FIG. 9 for editing the machining program 53 from the user via the external input unit 20 is displayed on the display screen 10a. (Step ST6). When it is determined that the command for displaying the machining program editing screen ES shown in FIG. 9 on the display screen 10a has not been received (step ST6: No), the control calculation unit 30 of the numerical controller 1 repeats step ST6. When it is determined that the command for displaying the machining program edit screen ES on the display screen 10a is received (step ST6: Yes), the control calculation unit 30 of the numerical control device 1 displays the machining program edit screen ES as shown in FIG. It is displayed on the display screen 10a (step ST7).

  As shown in FIG. 9, the user confirms the tool name TJ1, which is the name of the tool 200 attached to each attachment location T while confirming the tool management screen MS, and displays the machining program 53 on the machining program edit screen ES. Can be edited. In the first embodiment, the user creates the machining program 53 on the machining program editing screen ES. However, the machining program 53 stored in the storage unit 50 is displayed on the machining program editing screen ES and displayed. You may change a part of. In the present invention, editing the machining program 53 means creating the machining program 53 and changing a part of the machining program 53. As described above, the tool management generation program 56 is a program for causing the numerical control device 1 which is a computer to execute Step ST2 and Step ST3.

  The numerical control apparatus 1 processes the workpiece by executing the machining program 53 edited on the machining program editing screen ES. In the numerical control apparatus 1, the value of the tool wear TJ2C in the tool management table 52 may be updated from the external input unit 20 by the user during machining of the workpiece. The user calculates the wear value of the tool 200 by measuring the dimension of the processed workpiece using a caliper or a micrometer, and updates the value of the tool wear TJ2C in the tool management table 52. Further, the numerical control device 1 calculates the usage time of each tool 200 during processing of the workpiece (more specifically, only the execution time of G1), and updates the value of the tool life TJ3 in the tool management table 52.

  In the numerical control device 1 and the tool management generation program 56 according to the first embodiment, the storage medium access unit 60 reads the tool information TJ from the storage medium 300 attached to each tool 200, and the information generation unit 38 sets the tool 200. A tool management table 52 in which the attachment location T and the name of the tool 200 are associated with each other is generated. For this reason, the user can grasp | ascertain the tool 200 attached to each attachment location T, and can edit the processing program 53 correctly based on the information of the tool 200 attached to each attachment location T. As a result, the numerical control apparatus 1 can be easily set up by the operator, can prevent setup errors of the operator, can prevent processing stoppage due to a program error, and can process defective workpieces. Can be processed.

  Further, the numerical control apparatus 1 displays a tool management screen MS indicating the tool management table 52 and a machining program edit screen ES for editing the machining program 53 on the display screen 10a of the display unit 10 to edit the machining program 53. It can be performed. For this reason, the user can edit the machining program 53 while confirming the name of the tool 200 attached to each attachment location T on the tool management screen MS, and the attachment location T and the name of the tool 200 are associated with each other. It is possible to prevent the T codes 53a and 53b of the machining program 53 from being erroneously created without using the attached correspondence table.

  Further, in the numerical controller 1, since the tool information TJ includes the correction amount TJ2 of each tool 200 and the correction amount TJ2 includes the tool wear TJ2C which is the wear amount, the user inputs the correction amount TJ2 of each tool 200. Instead, the storage medium access unit 60 reads the tool information TJ from the storage medium 300 attached to each tool 200, so that the correction amount TJ2 of each tool 200 can be stored in the storage means 50. As a result, the numerical controller 1 can accurately process the workpiece. Further, in the numerical control apparatus 1, since the tool information TJ includes the tool life TJ3 that is the life of each tool 200, the user can change the tool 200 by displaying the tool management screen MS on the display screen 10a of the display unit 10. The time can be easily grasped. When the tool information TJ includes the tool life TJ3 that is the life of each tool 200, the numerical control device 1 associates the tool life TJ3 in addition to the attachment location T of each tool 200 and the name of each tool 200. TJ can be managed collectively.

  In the numerical control device 1 and the tool management generation program 56 according to the first embodiment, the storage medium access unit 60 reads the tool information TJ from the storage medium 300 attached to each tool 200, and the information generation unit 38 sets the tool 200. A tool management table 52 in which the attachment location T and the name of the tool 200 are associated with each other is generated. In addition, the numerical control device 1 and the tool management generation program 56 according to the first embodiment are configured so that the tool name conversion unit 42 extracts the “tool name” of the T codes 53 a and 53 b from the tool management table 52 ( Tool number). As a result, the numerical control device 1 and the tool management generation program 56 according to the first embodiment, the tool name conversion unit 42 extracts the “tool name” of the T codes 53a and 53b from the tool management table 52, and the number of the attachment location T. Therefore, the machining program 53 including the T codes 53a and 53b including the “tool name” can be executed.

Embodiment 2. FIG.
Next, a numerical control apparatus 1 according to Embodiment 2 will be described with reference to the drawings. FIG. 10 is a side view showing the main part of the machine tool from which the tool information of the storage medium attached to the tool is read by the numerical control device according to the second embodiment. In FIG. 10, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. FIG. 10 shows a so-called lathe turret.

  The machine tool 100-2 from which the tool information TJ is read by the numerical controller 1 according to the second embodiment is a turret lathe. The machine tool 100-2 attaches a plurality of tools 200 to the turret 108. The machine tool 100-2 does not include the tool movement control unit 107 of the machine tool 100 shown in the first embodiment, and the spindle motor control unit 124 rotates the turret 108 around the axis P parallel to the Z-axis direction. By doing this, the tool information TJ of the tool 200 used for machining the workpiece is read.

  In the numerical control apparatus 1 according to the second embodiment, as in the first embodiment, the storage medium access unit 60 reads the tool information TJ from the storage medium 300 attached to each tool 200, and the information generation unit 38 receives each tool. A tool management table 52 that associates the attachment locations T of 200 with the names of the tools 200 is generated. For this reason, the user can grasp the tool 200 attached to each attachment location T, can accurately edit the machining program 53 based on the information of the tool 200 attached to each attachment location T, The numerical control apparatus 1 can accurately process a workpiece.

Embodiment 3 FIG.
Next, a numerical control apparatus 1 according to Embodiment 3 will be described with reference to the drawings. FIG. 11 is a side view showing the main part of the machine tool from which the tool information of the storage medium attached to the tool is read by the numerical control device according to the third embodiment. In FIG. 11, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  Machine tool 100-3 from which tool information TJ is read by numerical control device 1 according to the third embodiment is a lathe. The machine tool 100-3 attaches a plurality of tools 200 to the tool post 109. The machine tool 100-3 does not include the tool movement control unit 107 of the machine tool 100 shown in the first embodiment, and the Y-axis servo control unit 122 moves the tool post 109 along the Y-axis direction. The tool information TJ of the tool 200 used for machining the workpiece is read.

  In the numerical control apparatus 1 according to the third embodiment, as in the first embodiment, the storage medium access unit 60 reads the tool information TJ from the storage medium 300 attached to each tool 200, and the information generation unit 38 receives each tool. A tool management table 52 that associates the attachment locations T of 200 with the names of the tools 200 is generated. For this reason, the user can grasp the tool 200 attached to each attachment location T, can accurately edit the machining program 53 based on the information of the tool 200 attached to each attachment location T, The numerical control apparatus 1 can accurately process a workpiece.

Embodiment 4 FIG.
Next, a numerical control apparatus 1 according to Embodiment 4 will be described with reference to the drawings. FIG. 12 is a functional block diagram showing the configuration of the numerical control apparatus according to the fourth embodiment. FIG. 13 is a diagram illustrating an example of a tool management table generated by the information generation unit of the numerical control device according to the fourth embodiment. FIG. 14 is a diagram showing a tool management screen and a machining program editing screen displayed on the display screen of the display unit of the numerical controller shown in FIG. In FIGS. 12 to 14, the same parts as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 13, the tool management table 52 generated by the information generation unit 38 of the numerical controller 1 according to the fourth embodiment shown in FIG. 12 includes the number of the attachment location T of each tool 200 and each tool name TJ1. Is associated with the variable V. The variable V is used in the control syntax in the machining program 53 and is a natural number that differs for each tool 200. In the fourth embodiment, the variable V is a natural number of “1000” or more, but is not limited thereto. In the fourth embodiment, as shown in FIG. 13, the tool management table 52 includes the number of the attachment location T, the tool name TJ1, the tool length TJ2A, the tool diameter TJ2B, the tool wear TJ2C, and the tool life TJ3. , And variable V are associated with each other.

  As shown in FIG. 14, the numerical control device 1 according to the fourth embodiment includes T codes 53 a-4 and 53 b-4 of the machining program 53-4 by an identifier “T” and a “number” of a variable V. . As shown in FIG. 12, the machining program analysis processing unit 40 of the numerical control device 1 according to the fourth embodiment sets the “number” of the variable V of the T codes 53 a-4 and 53 b-4 of the machining program 53-4. Variable tool name conversion means 43 for converting to tool name TJ1 with reference to the tool management table 52 is provided.

  In the numerical control apparatus 1 according to the fourth embodiment, as in the first embodiment, the storage medium access unit 60 reads the tool information TJ from the storage medium 300 attached to each tool 200, and the information generation unit 38 receives each tool. A tool management table 52 that associates the attachment locations T of 200 with the names of the tools 200 is generated. Therefore, the user can grasp the tool 200 attached to each attachment location T, and can accurately edit the machining program 53-4 based on the information of the tool 200 attached to each attachment location T. Thus, the numerical control device 1 can accurately process the workpiece.

  Further, the numerical control apparatus 1 according to the fourth embodiment associates the variable V with the tool name TJ1 which is the name of each tool 200 in the tool management table 52, so that the machining program uses the variable V in the machining program 53-4. The time required for editing 53-4 can be suppressed. The fourth embodiment can also be applied to the numerical control apparatus 1 that can use only the number of the attachment location T of each tool 200 or the variable V in the tool command.

Embodiment 5. FIG.
Next, a numerical control apparatus 1 according to the fifth embodiment will be described with reference to the drawings. FIG. 15 is a diagram illustrating a tool management screen displayed on the display screen of the display unit of the numerical control device according to the fifth embodiment and a machining program editing screen being edited. FIG. 16 is a diagram showing the tool management screen and the edited machining program editing screen shown in FIG. In FIGS. 15 and 16, the same reference numerals are given to the same portions as those in the first embodiment and the description thereof is omitted, and the fifth embodiment will be described by using the same reference numerals in the same portions as the fourth embodiment.

  The machining program editing means 33A-5 of the setting unit 33 of the numerical control device 1 according to the fifth embodiment includes a block of the machining program 53 being edited displayed on the machining program editing screen ES, as shown in FIG. An operation for associating the tool name TJ1 on the tool management screen MS can be received from the external input unit 20. In FIG. 15, the T code 53a ″ that is a block of the machining program 53 associated with the tool name TJ1 on the tool management screen MS is indicated by parallel diagonal lines. Further, the machining program editing means 33A-5 of the setting unit 33 of the numerical controller 1 according to the fifth embodiment externally inputs an operation for associating the block of the machining program 53 being edited with the tool name TJ1 of the tool management screen MS. When accepted from the unit 20, as shown in FIG. 16, the tool name TJ1 associated with the block of the associated machining program 53 is transcribed. The machining program editing unit 33A-5 of the setting unit 33 of the numerical controller 1 according to the fifth embodiment is a tool name transcription unit.

  In the numerical control apparatus 1 according to the fifth embodiment, as in the first embodiment, the storage medium access unit 60 reads the tool information TJ from the storage medium 300 attached to each tool 200, and the information generation unit 38 receives each tool. Since the tool management table 52 in which the attachment locations T of 200 and the names of the tools 200 are associated with each other is generated, the workpiece can be processed accurately.

  Further, when the machining program editing unit 33A-5 accepts an operation for associating the block of the machining program 53 with the tool name TJ1 of the tool management screen MS, the numerical control device 1 according to the fifth embodiment receives the tool on the tool management screen MS. Since the name TJ1 is transferred to the block of the machining program 53, the description of the tool name TJ1 can be simplified when editing the machining program 53, and errors can be suppressed.

Embodiment 6 FIG.
Next, a numerical control apparatus 1 according to the sixth embodiment will be described with reference to the drawings. FIG. 17 is a flowchart showing a method for editing a machining program of the numerical control apparatus according to the sixth embodiment. FIG. 18 is a diagram illustrating an example of a tool name conversion table generated by the numerical control device according to the sixth embodiment. FIG. 19 is a diagram illustrating an example of a tool management screen of a tool management table generated by the numerical control device according to the sixth embodiment. FIG. 20 is a diagram illustrating a state in which the tool name in the tool name conversion table illustrated in FIG. 18 is rewritten. FIG. 21 is a diagram showing an example of a tool management screen of a tool management table corresponding to the tool name conversion table shown in FIG. 17 to 21, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The numerical controller 1 according to the sixth embodiment generates a tool name conversion table 57 shown in FIG. 18 in addition to the information generator 38 generating the tool management table 52 in step ST3A shown in FIG. The tool name conversion table 57 is generated by reading the tool information TJ of the storage medium 300 attached to each tool 200, and associates the tool name TJ1 and the number of the attachment location T on a one-to-one basis. In the sixth embodiment, the number of the attachment location T is indicated by the number after the identifier “T”, but the method of indicating the number of the attachment location T is not limited to this.

  Further, the control calculation unit 30 of the numerical controller 1 generates a tool management table 52 and a tool name conversion table 57 based on the read tool information TJ (step ST3A), and then the user via the external input unit 20 It is determined whether or not a command to display the tool name conversion table 57 on the display screen 10a has been received (step ST10). When it is determined that the command for displaying the tool name conversion table 57 on the display screen 10a is not received (step ST10: No), the control calculation unit 30 of the numerical control device 1 proceeds to step ST4. When it is determined that the command for displaying the tool name conversion table 57 on the display screen 10a is received (step ST10: Yes), the control calculation unit 30 of the numerical controller 1 displays the tool name conversion table 57 on the display screen 10a ( Step ST11).

  The control calculation unit 30 of the numerical controller 1 determines whether or not rewriting of the tool name TJ1 of the tool name conversion table 57 has been received from the user via the external input unit 20 (step ST12). If it is determined that rewriting of the tool name TJ1 in the tool name conversion table 57 is not accepted (step ST12: No), the control calculation unit 30 of the numerical control device 1 repeats step ST12. When it is determined that the rewrite of the tool name TJ1 in the tool name conversion table 57 has been received (step ST12: Yes), the control calculation unit 30 of the numerical control device 1 has a tool name in the tool name conversion table 57 as shown in FIG. TJ1 is rewritten (step ST13). Further, as shown in FIG. 21, the control calculation unit 30 of the numerical controller 1 rewrites the tool name TJ1 in the tool management table 52 ′ with the rewritten tool name TJ1 ′ in the tool name conversion table 57 shown in FIG. The process proceeds to step ST4. 20 and 21 show an example in which the “English” tool name TJ1 shown in FIGS. 18 and 19 is rewritten to the “Japanese” tool name TJ1 ′, but the present invention is not limited to this.

  As described above, in the sixth embodiment, the machining program editing unit 33A of the setting unit 33 of the control arithmetic unit 30 of the numerical control device 1 uses the tool name TJ1 of the tool information TJ of each tool 200 read by the storage medium access unit 60. Is a tool name rewriting means that can be rewritten. In the sixth embodiment, the machining program editing unit 33A of the setting unit 33 of the control arithmetic unit 30 of the numerical controller 1 generates the tool name conversion table 57 and rewrites the tool name TJ1 of the tool name conversion table 57. However, in the present invention, the tool name TJ1 of the tool management table 52 may be rewritten without generating the tool name conversion table 57.

  In the numerical control apparatus 1 according to the sixth embodiment, as in the first embodiment, the storage medium access unit 60 reads the tool information TJ from the storage medium 300 attached to each tool 200, and the information generation unit 38 receives each tool. Since the tool management table 52 in which the attachment locations T of 200 and the names of the tools 200 are associated with each other is generated, the workpiece can be processed accurately.

  Further, in the numerical control apparatus 1 according to the sixth embodiment, the machining program editing unit 33A can rewrite the tool name TJ1 in the tool name conversion table 57, so that the tool name TJ1 in the machining program 53 is set to an appropriate name or in a foreign country. Can be rewritten into the native language of the foreign country.

Embodiment 7 FIG.
Next, a numerical control apparatus 1 according to Embodiment 7 will be described with reference to the drawings. FIG. 22 is a flowchart showing a method for editing the tool name of the numerical control apparatus according to the seventh embodiment. In FIG. 22, the same parts as those in the sixth embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The numerical controller 1 according to the sixth embodiment receives a command for reading the tool information TJ and generates the tool management table 52, and then rewrites the tool name TJ1. When the numerical controller 1 according to the seventh embodiment receives a command to rewrite the tool name TJ1 without receiving a command to read the tool information TJ, the numerical control device 1 rewrites the tool name TJ1 in the tool management table 52 as in the sixth embodiment. Different.

  The control calculation unit 30 of the numerical control device 1 according to the seventh embodiment determines whether or not an instruction to rewrite the tool name TJ1 in the tool management table 52 is received from the user via the external input unit 20 (step ST8). When it is determined that the command for rewriting the tool name TJ1 in the tool management table 52 has not been received (step ST8: No), the control calculation unit 30 of the numerical controller 1 repeats step ST8.

  When the control calculation unit 30 of the numerical control apparatus 1 determines that an instruction to rewrite the tool name TJ1 in the tool management table 52 has been received (step ST8: Yes), the tool name conversion table 57 is referred to the tool management table 52. The generated tool name conversion table 57 is displayed on the display screen 10a (step ST11).

  The control calculation unit 30 of the numerical controller 1 determines whether or not rewriting of the tool name TJ1 of the tool name conversion table 57 has been received from the user via the external input unit 20 (step ST12). If it is determined that rewriting of the tool name TJ1 in the tool name conversion table 57 is not accepted (step ST12: No), the control calculation unit 30 of the numerical control device 1 repeats step ST12. When it is determined that rewriting of the tool name TJ1 in the tool name conversion table 57 has been received (step ST12: Yes), the control calculation unit 30 of the numerical controller 1 rewrites the tool name TJ1 in the tool name conversion table 57, and the tool management table. The tool name TJ1 of 52 is rewritten (step ST13), and the flowchart shown in FIG. 22 is ended.

  As described above, in the seventh embodiment, the machining program editing unit 33A of the setting unit 33 of the control arithmetic unit 30 of the numerical control device 1 can rewrite the tool name TJ1 of the tool information TJ of the tool management table 52. Means. In the seventh embodiment, the machining program editing unit 33A of the setting unit 33 of the control calculation unit 30 of the numerical controller 1 generates the tool name conversion table 57 and rewrites the tool name TJ1 of the tool name conversion table 57. However, in the present invention, the tool name TJ1 of the tool management table 52 may be rewritten without generating the tool name conversion table 57.

  In the numerical control apparatus 1 according to the seventh embodiment, the machining program editing means 33A can rewrite the tool name TJ1 in the tool name conversion table 57, so that the tool name TJ1 in the machining program 53 is an appropriate name or foreign in a foreign country. Can be rewritten to the native language of

Embodiment 8 FIG.
Next, a numerical control apparatus 1 according to the eighth embodiment will be described with reference to the drawings. FIG. 23 is a diagram illustrating an example of a machining program stored in the storage unit of the numerical control device according to the eighth embodiment. In FIG. 23, the same parts as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The machining program 53-8 stored in the storage unit 50 of the numerical control device 1 according to the eighth embodiment is a block for substituting “tool name”, which is the name of each tool 200, into a variable V as shown in FIG. 53d. FIG. 23 shows an example in which “Drill_1” that is “tool name” is substituted for “# 1000” that is a variable. In the machining program 53-8, as shown in FIG. 23, the T code 53a-8 that is a tool command is commanded by a variable. That is, the T code 53a-8 includes a variable. FIG. 23 shows an example in which the T code 53a-8 includes “# 1000” which is a variable.

  The numerical control apparatus 1 according to the eighth embodiment substitutes the “tool name”, which is the name of each tool 200, in the tool management table 52 into a variable, so that the machining program 53-8 uses the variable V in the machining program 53-8. The time required for editing -8 can be suppressed.

Embodiment 9 FIG.
Next, a numerical control apparatus 1 according to Embodiment 9 will be described with reference to the drawings. FIG. 24 is a flowchart illustrating a method for writing tool information of the numerical control device according to the ninth embodiment.

  In the numerical control apparatus 1 according to the ninth embodiment, the storage medium access unit 60 writes the tool management table 52 stored in the storage unit 50 to the storage medium 300 attached to each tool 200 as the tool information TJ. In the ninth embodiment, the numerical control device 1 stores the tool management stored in the storage means 50 when the tool 200 is removed from each attachment location T of the tool magazine 105 in accordance with a command from the user via the external input unit 20. The tool wear TJ2C and the tool life TJ3 of the table 52 are written in the storage medium 300, but the timing of writing in the storage medium 300 is not limited to this.

  Further, the numerical control apparatus 1 may sequentially write the tool wear TJ2C and the tool life TJ3 of the tool management table 52 stored in the storage unit 50 in the storage medium 300 attached to all the tools 200. The tool wear TJ2C and the tool life TJ3 of the tool management table 52 stored in the storage unit 50 may be written in the storage medium 300 attached to 200.

  As shown in FIG. 24, the numerical control device 1 according to the ninth embodiment determines whether or not an instruction to write the tool management table 52 as the tool information TJ to the storage medium 300 is received from the user via the external input unit 20. (Step ST21). When it is determined that the command for writing the tool information TJ to the storage medium 300 is not received (step ST21: No), the control calculation unit 30 of the numerical control device 1 repeats step ST21. When it is determined that the command for writing the tool information TJ to the storage medium 300 is received (step ST21: Yes), the control calculation unit 30 of the numerical control device 1 writes the tool information TJ to the storage medium 300 (step ST22).

  The numerical control apparatus 1 according to the ninth embodiment writes (or writes back) the tool wear TJ2C and the tool life TJ3 of the tool management table 52 stored in the storage unit 50 to the storage medium 300 attached to each tool 200. Therefore, the tool information TJ can be easily managed. Furthermore, the numerical controller 1 according to the ninth embodiment can leave the latest state of the tool information TJ in the recording medium 300.

  Next, the numerical control apparatus 1 according to the first to ninth embodiments will be described with reference to FIG. FIG. 25 is a diagram illustrating a hardware configuration of the numerical control device according to each embodiment. A numerical control device 1 according to each embodiment is a computer that executes a computer program on an OS (Operating System) 2, and as shown in FIG. 25, a display unit 10, an external input unit 20, and a storage medium An access unit 60, a storage medium reading device 90, a storage device 3, a CPU (Central Processing Unit) 4, a RAM (Random Access Memory) 5, a DRAM (Dynamic Random Access Memory) 6, a communication interface 7, Is provided. The CPU 4, the RAM 5, the DRAM 6, the storage device 3, the display unit 10, the external input unit 20, the storage medium access unit 60, the storage medium reading device 90, and the communication interface 7 are connected via a bus B. The RAM 5 includes SRAM (Static Random Access Memory), MRAM (Magnetoresistive Random Access Memory), ReRAM (Resistive Random Access Memory), and PCRAM (Phase Change Random Access Memory).

  Input processing unit 31, information generation unit 38, screen display processing unit 32, interpolation processing unit 70, acceleration / deceleration processing unit 37, axis data output unit 39, machining program analysis processing unit 40, setting unit 33, machine of control arithmetic unit 30 The functions of the control signal processing unit 34 and the tool movement control means 35 are realized by the CPU 4 executing programs stored in the RAM 5 and the storage device 3 while using the DRAM 6 as a work area. The program is realized by software, firmware, or a combination of software and firmware. In each embodiment, the storage device 3 is an SSD (Solid State Drive) or HDD (Hard Disk Drive), but the storage device 3 is not limited to an SSD or HDD. The function of the storage means 50 is executed on the RAM 5 or DRAM 6.

  The communication interface 7 realizes a network interface function. The function of the communication means 80 is realized by the communication interface 7.

  The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

  DESCRIPTION OF SYMBOLS 1 Numerical control apparatus (computer), 10 Display part, 30 Control calculating part (execution means), 33A Machining program edit means (tool name rewriting means), 33A-5 Machining program edit means (tool name transcription means), 38 Information production | generation Part, 42 tool name conversion means (conversion means), 52 tool management table, 53 machining program, 56 tool management generation program, 60 storage medium access part, 100, 100-2, 100-3 machine tool, 200 tool, 300 storage Medium, T attachment location, MS tool management screen, ES machining program edit screen, TJ tool information, TJ1 tool name (tool name), TJ2 correction amount, TJ2C tool wear (wear amount), TJ3 tool life (life), V Variable, ST2 reading step, ST3 information generating step.

In order to solve the above-described problems and achieve the object, the present invention is a numerical control device that controls a machine tool including a plurality of attachment points to which tools are attached. The numerical control device stores at least tool information including the name of each tool, and stores at least one of the storage unit that accommodates each tool or a storage medium attached to at least one of the tools so that the tool information can be read. A storage unit that stores a tool management table that associates the attachment location of each tool and the name of each tool, which is generated based on the tool information of each tool read by the storage medium access unit , Conversion means for rewriting the tool name included in the tool command of the machining program with the number of the attachment location with reference to the tool management table .

In order to solve the above-described problems and achieve the object, the present invention is a numerical control device that controls a machine tool including a plurality of attachment points to which tools are attached. The numerical control device stores at least tool information including the name of each tool, and stores at least one of the storage unit that accommodates each tool or a storage medium attached to at least one of the tools so that the tool information can be read. And a storage unit for storing a tool management table in which the attachment location of each tool and the name of each tool are associated with each other, generated based on the tool information of each tool read by the storage medium access unit, A display unit that displays a tool management screen showing the stored tool management table and a machining program editing screen for editing a machining program of the machine tool side by side on the same display screen ;

Claims (10)

A numerical control device for controlling a machine tool having a plurality of attachment points to which a tool is attached,
A storage medium access unit that stores at least tool information including the name of each tool and that can read at least the tool information from a storage unit that stores the tools or a storage medium that is attached to at least one of the tools; ,
A storage unit that stores a tool management table that associates the attachment location of each tool and the name of each tool, generated based on the tool information of each tool read by the storage medium access unit;
A numerical control device comprising: A display unit for displaying a tool management screen showing the tool management table stored in the storage unit, and a machining program editing screen for editing a machining program of the machine tool;
The numerical control apparatus according to claim 1, comprising: Conversion means for converting a tool name included in a tool command of the machining program into a number of the attachment location with reference to the tool management table,
An execution means for executing the tool command including the number of the attachment location converted by the conversion means;
The numerical control apparatus according to claim 2, further comprising: The tool information includes at least one of a correction amount including at least the wear amount of each tool and the life of each tool,
The tool management table is
When the tool information includes a correction amount of each tool, in addition to the attachment location of each tool and the name of each tool, the correction amount of each tool is associated,
When the tool information includes the life of each tool, information indicating the life of each tool is associated in addition to the attachment location of each tool and the name of each tool. Numerical control unit. The numerical control device according to claim 2, wherein the tool management table stored in the storage unit associates an attachment location of each tool and a name of each tool with a variable. The numerical control device according to claim 1, wherein the machining program for the machine tool includes a block for substituting the name of each tool for a variable, and a tool command includes the variable. The numerical control apparatus according to claim 2, further comprising a tool name rewriting unit capable of rewriting the name of each tool in the tool information of each tool read by the storage medium access unit. When an operation for associating the machining program block being edited displayed on the machining program edit screen with the tool name on the tool management screen is accepted, the name of the tool associated with the associated machining program block The numerical control device according to claim 2, further comprising a tool name transcription unit that transcribes the symbol. The storage medium access unit
When the tool information includes a correction amount of each tool, the wear amount of the tool in the tool management table is written to the storage medium attached to each tool,
The numerical control apparatus according to claim 4, wherein when the tool information includes a life of each tool, the life of the tool in the tool management table is written to the storage medium attached to each tool. A program for controlling a machine tool having a plurality of attachment points to which tools are attached,
A step of storing at least tool information including the name of each tool, and reading at least the tool information from a storage medium for storing the tools or a storage medium attached to at least one of the tools;
An information storage step for storing a tool management table in which the attachment location of each tool and the name of each tool are associated with each other based on the tool information of each tool read in the reading step;
Tool management generation program for causing a computer to execute.

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