CN118926980B - A tool changing device for machine tool tool magazine - Google Patents
A tool changing device for machine tool tool magazine Download PDFInfo
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- CN118926980B CN118926980B CN202411428554.1A CN202411428554A CN118926980B CN 118926980 B CN118926980 B CN 118926980B CN 202411428554 A CN202411428554 A CN 202411428554A CN 118926980 B CN118926980 B CN 118926980B
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- 230000007246 mechanism Effects 0.000 claims abstract description 118
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 210000004489 deciduous teeth Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
本发明属于机床技术领域，尤其是一种用于机床刀库的换刀装置，现提出以下方案，具体包括安装支架，所述安装支架的侧面安装有电动伸缩杆，所述安装支架的另一侧面安装有旋转执行器，所述旋转执行器的输出端安装有刀具转移机构，所述电动伸缩杆的底端安装有电动旋转座，且电动旋转座的两端均安装有刀具转换支架，两个所述刀具转换支架的侧面均设置有安装槽。本发明中刀具抓取机构在抓取刀具的动作过程中，根据两端刀具的重量区别，位于刀具转换支架内部的平衡机构动作，保持两个刀具抓取机构抓取刀具后，两个刀具转换支架重心集中于电动旋转座轴心位置，提高刀具转换时两端旋转运动的稳定性，进而提高机床换刀过程中的稳定性和安全性。
The present invention belongs to the technical field of machine tools, and in particular to a tool changing device for a machine tool magazine. The following scheme is proposed, which specifically includes a mounting bracket, an electric telescopic rod is mounted on the side of the mounting bracket, a rotary actuator is mounted on the other side of the mounting bracket, a tool transfer mechanism is mounted on the output end of the rotary actuator, an electric rotating seat is mounted on the bottom end of the electric telescopic rod, and tool conversion brackets are mounted on both ends of the electric rotating seat, and mounting grooves are arranged on the sides of the two tool conversion brackets. In the present invention, during the action of grabbing the tool, the balancing mechanism located inside the tool conversion bracket is actuated according to the weight difference of the tools at both ends, so that after the two tool grabbing mechanisms grab the tools, the center of gravity of the two tool conversion brackets is concentrated on the axis position of the electric rotating seat, thereby improving the stability of the rotational motion at both ends during tool conversion, thereby improving the stability and safety of the machine tool during tool change.
Description
Technical Field
The invention relates to the technical field of machine tools, in particular to a tool changing device for a tool magazine of a machine tool.
Background
Machine tools refer to machines for producing machines, also known as machine tools or machine tools, which are conventionally referred to as machine tools. The parts of the mechanical products are usually machined by machine tools, and the variety, quality and machining efficiency of the machine tools directly influence the production technical level of other mechanical products, so that the machine tools are basic production equipment of the mechanical industry. The numerical control machine tool machining is an effective way for solving the problems of variable varieties of parts, small batch, complex shape, high precision and the like and realizing efficient and automatic machining.
The machining of the machine tool is realized through cutters, and different cutters are required for different machining processes, so that a cutter changing device is required, the cutter changing mode for the existing machine tool generally comprises mechanical arm cutter changing, cutter magazine cutter changing and chuck cutter changing, and the basic principle of mechanical arm cutter changing is that the cutters are grabbed and changed through a mechanical arm or a mechanical arm. Specifically, when the tool needs to be replaced, the mechanical arm can move to a designated position to grasp a new tool, then move to a main shaft position to detach the old tool and mount the new tool on the main shaft, at present, the tool is clamped in a groove by means of an internal movable pin to complete the grabbing action of the tool by means of the exchange transfer component of the tool changing structure of the mechanical arm, the tool is pushed to the outer end by the fixing mode, and the generated gap easily causes the tool to fall off, so that the stability of tool changing is affected.
In view of the above, the present invention provides a tool changer for a tool magazine of a machine tool, so as to solve the above-mentioned technical problems in the prior art.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a tool changing device for a tool magazine of a machine tool.
The invention provides a tool changing device for a machine tool magazine, which comprises a mounting bracket, wherein an electric telescopic rod is arranged on the side surface of the mounting bracket, a rotary actuator is arranged on the other side surface of the mounting bracket, a tool transferring mechanism is arranged at the output end of the rotary actuator, an electric rotating seat is arranged at the bottom end of the electric telescopic rod, tool changing brackets are arranged at the two ends of the electric rotating seat, mounting grooves are formed in the side surfaces of the two tool changing brackets, a U-shaped tool grabbing mechanism is fixedly arranged in the mounting grooves, two first arc grabbing pieces and second arc grabbing pieces which synchronously move are arranged in the tool grabbing mechanism, one ends, close to each other, of the first arc grabbing pieces and the second arc grabbing pieces are connected in a sliding mode, a linkage mechanism, a centrifugal driving mechanism and a stopping mechanism are sequentially arranged on one side of the interior of the tool changing bracket, the linkage mechanism is arranged between the centrifugal driving mechanism and the tool grabbing mechanism, the stopping mechanism is arranged at the end position of the centrifugal driving mechanism, and a balancing mechanism is arranged on the other side of the interior of the tool changing bracket.
In the invention, preferably, the cutter transfer mechanism comprises a main push rod motor connected with the output end of the rotary actuator, and a fixed sleeve arranged at the front end of the main push rod motor, and a transfer assembly is arranged at the front end position of the fixed sleeve.
In the invention, preferably, the transfer assembly comprises an outer shell and a secondary push rod motor arranged above the outer shell, an annular cavity is arranged at the bottom of the outer shell, a plurality of elastic retainers with L-shaped structures are arranged in the annular cavity, and a movable ring for restraining the elastic retainers is arranged at the bottom of the secondary push rod motor.
In the invention, preferably, the centrifugal driving mechanism comprises a guide rail bracket fixedly arranged in the cutter conversion bracket and a shaft rod slidingly arranged in the guide rail bracket, wherein a driving rack is arranged on one end side surface of the shaft rod, a reset spring is arranged between the other end of the shaft rod and the guide rail bracket, a rectangular groove is arranged on the side surface of the guide rail bracket, a weight piece is slidingly arranged in the rectangular groove, and the weight piece is fixedly connected with the shaft rod.
Preferably, the linkage mechanism comprises a linkage support, two main driving rollers and two auxiliary driving rollers which are in meshed transmission are arranged in the linkage support, a main toothed ring which is in meshed transmission with the driving rack and the second arc grabbing piece is arranged in the middle of the main driving rollers, and an auxiliary toothed ring which is in meshed transmission with the first arc grabbing piece is arranged on the outer side of the auxiliary driving rollers.
In the invention, preferably, the cutter grabbing mechanism comprises a cutter grabbing shell with a U-shaped structure, a guide block which is connected with a first arc grabbing piece and a second arc grabbing piece in a sliding manner is arranged in the cutter grabbing shell, an inner tooth bar which is meshed with a secondary tooth ring on a secondary driving roller for transmission is arranged in the middle of the first arc grabbing piece, and an outer tooth bar which is meshed with a primary tooth ring on a primary driving roller for transmission is arranged on the outer side of the second arc grabbing piece.
In the invention, preferably, the stop mechanism comprises a stop rod fixedly connected with the end part of the shaft rod and a stop shell fixedly connected with the cutter conversion bracket, the other end of the stop rod is provided with a magnetic ring, the front end position of the stop shell is provided with a locking electromagnet, and the rear end of the stop shell is provided with a damping electromagnet.
In the invention, preferably, the balancing mechanism comprises balancing guide rails respectively arranged in the two cutter conversion brackets and a balancing weight slidably arranged in the balancing guide rails, wherein the middle part of the balancing weight is in threaded connection with a movable threaded rod, and the end part of the balancing guide rail is provided with a servo motor for driving the movable threaded rod.
In the invention, preferably, the balancing mechanism further comprises a cavity arranged at the bottom end of the electric rotating seat, an angle sensor is arranged in the cavity, two sides of the angle sensor are respectively provided with an angle rotation counting shaft, and a detection shaft is arranged between the angle rotation counting shaft and the end part of the movable threaded rod.
Compared with the prior art, the invention provides a tool changing device for a tool magazine of a machine tool, which has the following beneficial effects:
According to the invention, the first arc grabbing piece and the second arc grabbing piece which synchronously move are arranged in the cutter grabbing mechanism under the driving of the linkage mechanism and the centrifugal driving mechanism, when the cutter transferring mechanism removes and transfers the cutter from the cutter magazine to the side face of the electric rotating seat, the electric rotating seat drives the cutter transferring bracket and the cutter grabbing mechanism to rotate 90 degrees, at the moment, the middle part of the cutter handle of the cutter is embedded into the first arc grabbing piece and the second arc grabbing piece, the electric telescopic rod drives the electric rotating seat, the cutter transferring bracket, the cutter grabbing mechanism and the cutter to move downwards along with the cutter transferring mechanism, the cutter is respectively taken off from the cutter transferring mechanism and the machine tool machining shaft, then, the electric rotating seat drives the cutter transferring bracket and the cutter grabbing mechanism to rotate 180 degrees, the centrifugal driving mechanism moves outwards under the centrifugal force effect when the cutter transferring bracket rotates, the cutter transferring mechanism drives the first arc grabbing piece and the second arc grabbing piece to move outwards and be combined, the cutter is firmly clamped and fixed, the cutter is effectively prevented from being thrown out when rotating at a high speed, the cutter grabbing mechanism is in the action process of grabbing the cutter, the cutter is balanced by the weight difference of the cutter at two ends, the two ends of the cutter transferring mechanism is kept in the cutter transferring mechanism, and the two ends of the cutter transferring mechanism rotate at the center of the cutter transferring mechanism are rotated, and the stability is improved when the cutter transferring mechanism rotates, and the two ends of the cutter transferring mechanism is rotated, and the cutter transferring the cutter is stable.
Drawings
Fig. 1 is a schematic structural diagram of a tool changing device for a tool magazine of a machine tool according to the present invention;
Fig. 2 is a schematic side view of a tool changer for a tool magazine of a machine tool according to the present invention;
fig. 3 is a schematic view of a tool changing rack of a tool changing device for a tool magazine of a machine tool according to the present invention;
fig. 4 is a schematic structural view of a tool transferring mechanism of a tool changing device for a tool magazine of a machine tool according to the present invention;
FIG. 5 is a schematic diagram showing an exploded structure of a tool transfer mechanism of a tool changer for a tool magazine of a machine tool according to the present invention;
fig. 6 is a schematic view of the internal structure of a tool changing support of a tool changing device for a tool magazine of a machine tool according to the present invention;
fig. 7 is a schematic structural diagram of a tool grabbing mechanism of a tool changing device for a tool magazine of a machine tool according to the present invention;
fig. 8 is a schematic structural diagram of a linkage mechanism of a tool changing device for a tool magazine of a machine tool according to the present invention;
Fig. 9 is a schematic structural view of a stop mechanism of a tool changer for a tool magazine of a machine tool according to the present invention;
fig. 10 is a schematic structural diagram of a balancing mechanism of a tool changer for a machine tool magazine according to the present invention.
In the figure, a mounting bracket, a 2 rotary actuator, a3 cutter transfer mechanism, a 31 main push rod motor, a 32 fixed sleeve, a 33 auxiliary push rod motor, a 34 outer shell, a 35 annular cavity, a 36 elastic fixing piece, a 37 movable ring, a 4 cutter grabbing mechanism, a 41 cutter grabbing shell, a 42 first arc grabbing piece, a 43 inner rack, a 44 outer rack, a 45 second arc grabbing piece, a 46 guide block, a 5 cutter conversion bracket, a 6 electric rotating seat, a 7 electric telescopic rod, an 8 linkage mechanism, a 81 main driving roller, a 82 linkage bracket, a 83 auxiliary driving roller, a 9 centrifugal driving mechanism, a 91 guide rail bracket, a 92 counterweight piece, a 93 shaft lever, a 94 reset spring, a 95 driving rack, a 10 stopping mechanism, a 101 stopping shell, a 102 locking electromagnet, a 103 damping electromagnet, a 104 magnetic ring, a 105 stopping rod, a 11 balancing mechanism, a 111 angle sensor, a 112 detection shaft, a 113 moving threaded rod, a 114 balancing guide rail, a 115 servo motor and a 116 balancing block.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Referring to fig. 1 to 10, a tool changing device for a tool magazine of a machine tool comprises a mounting bracket 1, wherein an electric telescopic rod 7 is mounted on the side surface of the mounting bracket 1, a rotary actuator 2 is mounted on the other side surface of the mounting bracket 1, a tool transferring mechanism 3 is mounted at the output end of the rotary actuator 2, an electric rotating seat 6 is mounted at the bottom end of the electric telescopic rod 7, tool transferring brackets 5 are mounted at both ends of the electric rotating seat 6, mounting grooves are formed in the side surfaces of the two tool transferring brackets 5, a tool grabbing mechanism 4 of a U-shaped structure is fixedly mounted in the mounting grooves, a first arc grabbing piece 42 and a second arc grabbing piece 45 which move synchronously are arranged in the tool grabbing mechanism 4, one ends of the first arc grabbing piece 42 and the second arc grabbing piece 45 are mutually close to each other and are connected in a sliding mode, a hollow structure is arranged in the tool transferring bracket 5, a linkage mechanism 8, a centrifugal driving mechanism 9 and a stop mechanism 10 are sequentially mounted on one side of the interior of the tool transferring bracket 5, the stop mechanism 10 is mounted between the centrifugal driving mechanism 9 and the tool grabbing mechanism 4, and the tool balancing mechanism 11 is mounted at the other side of the end of the centrifugal driving mechanism 9.
According to the invention, the first arc-shaped grabbing piece 42 and the second arc-shaped grabbing piece 45 which are synchronously moved are arranged in the cutter grabbing mechanism 4 under the driving of the linkage mechanism 8 and the centrifugal driving mechanism 9, when the cutter transferring mechanism 3 removes the cutter from the cutter magazine and transfers the cutter to the side face of the electric rotating seat 6, the electric rotating seat 6 drives the cutter converting support 5 and the cutter grabbing mechanism 4 to rotate 90 degrees, at the moment, the middle part of the cutter handle of the cutter is embedded into the first arc-shaped grabbing piece 42 and the second arc-shaped grabbing piece 45, the electric telescopic rod 7 drives the electric rotating seat 6, the cutter converting support 5, the cutter grabbing mechanism 4 and the cutter to move downwards, the cutter is respectively taken off from the cutter transferring mechanism 3 and a machine tool machining shaft, then the electric rotating seat 6 drives the cutter converting support 5 and the cutter grabbing mechanism 4 to rotate 180 degrees, the centrifugal driving mechanism 9 moves outwards under the centrifugal force, the cutter is clamped and fixed under the action of the centrifugal force, the cutter is effectively prevented from being thrown out when the cutter is rotated at the high speed, the two ends of the cutter converting support 4 are positioned at the center of gravity center of the cutter converting mechanism, and the two ends of the cutter converting mechanism are balanced when the two ends of the cutter converting mechanism are rotated, and the weight of the cutter is balanced when the two cutter converting mechanism is converted into the cutter is rotated, and the weight is stable when the cutter converting the two ends of the cutter converting mechanism is rotated, and the cutter is rotated in the rotary support 5.
Referring to fig. 4-5, the tool transferring mechanism 3 includes a main push rod motor 31 connected with the output end of the rotary actuator 2, and a fixed sleeve 32 mounted at the front end of the main push rod motor 31, and a transferring assembly is mounted at the front end position of the fixed sleeve 32, in the present invention, the main push rod motor 31 in the tool transferring mechanism 3 drives the fixed sleeve 32 and the transferring assembly to approach to the tool on the tool magazine, the upper end of the tool is fixed by means of the transferring assembly and is extracted from the tool magazine, and then the tool is moved to the grabbing position of the tool grabbing mechanism 4 by the rotary actuator 2 through the rotary motion, so that the tool changing operation of the tool grabbing mechanism 4 is facilitated.
As a still further scheme in the invention, the transfer assembly comprises an outer shell 34 and a secondary push rod motor 33 arranged above the outer shell 34, an annular cavity 35 is arranged at the bottom of the outer shell 34, a plurality of L-shaped elastic fixing pieces 36 are arranged in the annular cavity 35, and a movable ring 37 for restraining the elastic fixing pieces 36 is arranged at the bottom of the secondary push rod motor 33.
Referring to fig. 6-9, the centrifugal driving mechanism 9 comprises a guide rail bracket 91 fixedly installed in the cutter converting bracket 5, and a shaft rod 93 slidably installed in the guide rail bracket 91, wherein a driving rack 95 is arranged on one end side surface of the shaft rod 93, a reset spring 94 is installed between the other end of the shaft rod 93 and the guide rail bracket 91, a rectangular groove is arranged on the side surface of the guide rail bracket 91, a counterweight 92 is slidably installed in the rectangular groove, and the counterweight 92 is fixedly connected with the shaft rod 93.
Referring to fig. 8, the linkage mechanism 8 comprises a linkage bracket 82, two main driving rollers 81 and auxiliary driving rollers 83 which are meshed and driven are installed in the linkage bracket 82, a main tooth ring which is meshed and driven with a driving rack 95 and a second arc grabbing piece 45 is arranged in the middle of the main driving rollers 81, auxiliary tooth rings which are meshed and driven with a first arc grabbing piece 42 are arranged on the outer side of the auxiliary driving rollers 83, and when the centrifugal driving mechanism 9 moves outwards, the main driving rollers 81 rotate anticlockwise and further drive the second arc grabbing piece 45 to move outwards, at the moment, the auxiliary driving rollers 83 rotate clockwise and drive the first arc grabbing piece 42 to move outwards, and the first arc grabbing piece 42 and the second arc grabbing piece 45 synchronously move outwards to clamp and fix a cutter handle.
Referring to fig. 7, the cutter grabbing mechanism 4 includes a cutter grabbing shell 41 with a U-shaped structure, a guide block 46 slidably connected with a first arc grabbing piece 42 and a second arc grabbing piece 45 is installed in the cutter grabbing shell 41, an inner tooth bar 43 meshed with a secondary tooth ring on a secondary driving roller 83 and driven by the secondary tooth ring is arranged in the middle of the first arc grabbing piece 42, an outer tooth bar 44 meshed with a primary tooth ring on a primary driving roller 81 is arranged on the outer side of the second arc grabbing piece 45, an embedded groove is formed in the outer end of the first arc grabbing piece 42 and the outer end of the second arc grabbing piece 45, when the outer ends of the first arc grabbing piece 42 and the second arc grabbing piece 45 are in contact with a cutter handle, the first arc grabbing piece 42 and the second arc grabbing piece 45 synchronously move inwards, after the cutter handle is embedded into the first arc grabbing piece 42 and the second arc grabbing piece 45, the first arc grabbing piece 42 and the second arc grabbing piece 45 recover to an initial state under the action of a reset spring 94 of the centrifugal driving mechanism 9, when the cutter mechanism 4 drives the cutter to rotate, the first arc grabbing piece 42 and the second arc grabbing piece 45 are effectively converted into a rotary ring, and the cutter handle is prevented from moving outwards, and the cutter handle is effectively clamped, and the cutter handle is prevented from moving outwards, and the middle is stable, and the cutter handle is clamped and the cutter handle is effectively rotated.
Referring to fig. 9, the stopping mechanism 10 includes a stopping rod 105 fixedly connected to an end of a shaft 93, and a stopping housing 101 fixedly connected to a tool changing bracket 5, and a magnetic ring 104 is installed at the other end of the stopping rod 105, a locking electromagnet 102 is installed at a front end position of the stopping housing 101, and a damping electromagnet 103 is installed at a rear end of the stopping housing 101, in the present invention, when the shaft 93 moves, the shaft 93 is driven to alternately move between the locking electromagnet 102 and the damping electromagnet 103, and when the shaft 93 moves to an outermost end, the magnetic attraction of the locking electromagnet 102 to the magnetic ring 104 is larger than the elastic force of the reset spring 94, the positions of the first arc grabbing piece 42 and the second arc grabbing piece 45 are locked, when the cutters are required to be separated, the locking electromagnet 102 stops working, the magnetic ring 104 moves into the damping electromagnet 103, the kinetic energy of the movement of the shaft rod 93 is eliminated through the magnetic force of the damping electromagnet 103, vibration is avoided when the first arc grabbing piece 42 and the second arc grabbing piece 45 are opened and closed, and stability when the cutters are grabbed, transferred and replaced is provided.
Referring to fig. 10, the balancing mechanism 11 includes a balancing guide 114 installed inside two tool changing brackets 5, respectively, and a balancing weight 116 slidably installed inside the balancing guide 114, a moving threaded rod 113 is screw-coupled to the middle of the balancing weight 116, and a servo motor 115 driving the moving threaded rod 113 is installed at the end of the balancing guide 114, in the present invention, each tool has a different weight, when it is required to replace a different tool, according to the number and the weight of the cutter, the servo motor 115 is controlled to drive the movable threaded rod 113 to rotate, and the distance between the two balance weights 116 in the balance mechanism 11 and the axis of the electric rotating seat 6 is adjusted, so that after the cutter grabbing mechanism 4 grabs the cutter, the center of gravity of the cutter conversion support 5 and the electric rotating seat 6 is positioned at the axis of the electric rotating seat 6, eccentric vibration during rotary motion is avoided, and the stability in the cutter changing process is further improved.
As a still further scheme in the invention, the balancing mechanism 11 further comprises a cavity arranged at the bottom end of the electric rotating seat 6, an angle sensor 111 is arranged in the cavity, angle rotation counting shafts are arranged on two sides of the angle sensor 111, and a detection shaft 112 is arranged between the angle rotation counting shafts and the end parts of the movable threaded rods 113.
When the tool transfer mechanism 3 is used, when the tool is taken down from the tool magazine and transferred to the side face of the electric rotating seat 6, the electric rotating seat 6 drives the tool transfer support 5 and the tool grabbing mechanism 4 to rotate 90 degrees, at the moment, the middle part of the tool handle of the tool is embedded into the first arc grabbing piece 42 and the second arc grabbing piece 45, the electric telescopic rod 7 drives the electric rotating seat 6, the tool transfer support 5, the tool grabbing mechanism 4 and the tool to move downwards along with the electric telescopic rod, the tool is respectively taken down from the tool transfer mechanism 3 and a machine tool machining shaft, then, the electric rotating seat 6 drives the tool transfer support 5 and the tool grabbing mechanism 4 to rotate 180 degrees, when the tool transfer support 5 rotates, the centrifugal driving mechanism 9 moves outwards under the action of centrifugal force, the first arc grabbing piece 42 and the second arc grabbing piece 45 are driven to move outwards and are combined through the linkage mechanism 8, the tool is firmly clamped and fixed, the tool is effectively prevented from being thrown out during the high-speed rotation movement, and secondly, the tool grabbing mechanism 4 moves according to the weight difference of the two end tools in the tool transfer support 5, the two tool transfer mechanism 4 is kept to grab the tool, and the center of gravity is concentrated when the two tool transfer support 5 rotates, and the two tool transfer support positions are rotated, and the stability is improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a tool changing device for lathe tool magazine, includes installing support (1), electric telescopic handle (7) are installed to the side mounting of installing support (1), rotary actuator (2) are installed to the opposite side of installing support (1), a serial communication port, cutter transfer mechanism (3) are installed to the output of rotary actuator (2), electric rotating seat (6) are installed to the bottom of electric telescopic handle (7), and cutter change support (5) are all installed at the both ends of electric rotating seat (6), two cutter change support (5) all are provided with the mounting groove in the side, and the inside fixed mounting of mounting groove has cutter grabbing mechanism (4) of U type structure, the inside of cutter grabbing mechanism (4) is provided with two synchronous motion's first arc grabbing piece (42), second arc grabbing piece (45), and the one end that first arc grabbing piece (42) is close to each other is sliding connection each other, the inside of cutter change support (5) is hollow structure, and inside one side of cutter change support (5) is installed in proper order, install link gear (8) and drive mechanism (9) and stop gear (9) setting up between centrifugal mechanism and centrifugal mechanism (4), the stop mechanism (10) is arranged at the end part of the centrifugal driving mechanism (9), and the balance mechanism (11) is arranged at the other side of the inside of the cutter conversion bracket (5);
The centrifugal driving mechanism (9) comprises a guide rail bracket (91) fixedly mounted in the cutter conversion bracket (5) and a shaft rod (93) slidingly mounted in the guide rail bracket (91), a driving rack (95) is arranged on one end side surface of the shaft rod (93), a reset spring (94) is mounted between the other end of the shaft rod (93) and the guide rail bracket (91), a rectangular groove is formed in the side surface of the guide rail bracket (91), a counterweight (92) is slidingly mounted in the rectangular groove, the counterweight (92) is fixedly connected with the shaft rod (93), the linkage mechanism (8) comprises a linkage bracket (82), two main driving rollers (81) and auxiliary driving rollers (83) which are in meshed transmission are mounted in the linkage bracket (82), a main toothed ring which is meshed transmission with the driving rack (95) and the second arc-shaped grabbing piece (45) is arranged in the middle of the main driving roller (81), an auxiliary toothed ring which is meshed transmission with the first arc-shaped grabbing piece (42) is arranged on the outer side of the auxiliary driving roller (83), the cutter grabbing mechanism (4) comprises a U-shaped structure, the cutter grabbing mechanism (46) is connected with the first arc-shaped grabbing piece (41) and the second arc-shaped grabbing piece (46), the middle part of first arc snatchs piece (42) is provided with and vice ring gear meshing driven internal tooth strip (43) on vice driving roller (83), the outside of second arc snatchs piece (45) is provided with and main ring gear meshing driven external tooth strip (44) on main driving roller (81), stop mechanism (10) include stop lever (105) with axostylus axostyle (93) tip fixed connection to and stop casing (101) with cutter change support (5) fixed connection, and magnetic ring (104) are installed to the other end of stop lever (105), locking electro-magnet (102) are installed in the front end position of stop casing (101), damping electro-magnet (103) are installed to the rear end of stop casing (101).
2. A tool changing device for a tool magazine of a machine tool according to claim 1, characterized in that the tool transferring mechanism (3) comprises a main push rod motor (31) connected with the output end of the rotary actuator (2), and a fixed sleeve (32) arranged at the front end of the main push rod motor (31), and a transferring assembly is arranged at the front end position of the fixed sleeve (32).
3. A tool changing device for a tool magazine of a machine tool according to claim 2, characterized in that the transfer assembly comprises an outer housing (34) and a secondary pusher motor (33) mounted above the outer housing (34), the bottom of the outer housing (34) is provided with an annular cavity (35), and the interior of the annular cavity (35) is provided with a plurality of L-shaped structured elastic holders (36), and the bottom of the secondary pusher motor (33) is provided with a movable ring (37) restraining the elastic holders (36).
4. A tool changing device for a tool magazine of a machine tool according to claim 1, characterized in that the balancing mechanism (11) comprises a balancing guide rail (114) respectively installed inside the two tool changing brackets (5), and a balancing weight (116) slidably installed inside the balancing guide rail (114), a movable threaded rod (113) is screwed in the middle of the balancing weight (116), and a servo motor (115) for driving the movable threaded rod (113) is installed at the end of the balancing guide rail (114).
5. The tool changing device for the tool magazine of the machine tool according to claim 4, wherein the balancing mechanism (11) further comprises a cavity arranged at the bottom end of the electric rotating seat (6), an angle sensor (111) is arranged in the cavity, angle counting shafts are arranged on two sides of the angle sensor (111), and a detection shaft (112) is arranged between the angle counting shafts and the end of the movable threaded rod (113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411428554.1A CN118926980B (en) | 2024-10-14 | 2024-10-14 | A tool changing device for machine tool tool magazine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411428554.1A CN118926980B (en) | 2024-10-14 | 2024-10-14 | A tool changing device for machine tool tool magazine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118926980A CN118926980A (en) | 2024-11-12 |
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| CN110216509A (en) * | 2019-05-31 | 2019-09-10 | 浙江意控机床有限公司 | A kind of tool changing device and its cutter replacing method of numerically-controlled machine tool |
| CN118385995A (en) * | 2024-04-08 | 2024-07-26 | 广东今科机床有限公司 | Tool changing arm structure, numerical control machine tool applying tool changing arm structure and tool changing method |
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| CN218284685U (en) * | 2022-11-03 | 2023-01-13 | 吉野智能设备南通有限公司 | Quick tool changing mechanism of numerical control machine tool |
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| CN110216509A (en) * | 2019-05-31 | 2019-09-10 | 浙江意控机床有限公司 | A kind of tool changing device and its cutter replacing method of numerically-controlled machine tool |
| CN118385995A (en) * | 2024-04-08 | 2024-07-26 | 广东今科机床有限公司 | Tool changing arm structure, numerical control machine tool applying tool changing arm structure and tool changing method |
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