JPH08309640A - Automatic tool exchanger - Google Patents

Abstract

PURPOSE: To provide an automatic tool exchanger, which can automatically exchange a tool head in relation to a tool holder installed in a tool rest main body. CONSTITUTION: Plural tool heads are held by a tool exchanger main body 1 freely to be disconnected, and a tool head magazine 6, of which index is possible, is provided at a tool head exchanging position. An TC arm 10 for holding a gripper mechanism 11, which can grip a tool head, and for gripping a tool head of the tool head magazine 6 and tool holders 5a-5c so as to take it out and for supplying a gripped tool head to the tool had magazine 6 and the tool holders 5a-5c is provided. Traverser mechanisms 7a, 7b, which support the ATC arm 10 and which reciprocate between the tool head magazine 6 and the toll holders 5a-5c of a lateral lath, are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic tool changer for automatically changing a tool head to a tool holder of a modular tool on a tool holding member provided on a tool rest main body of a horizontal lathe.

[0002]

2. Description of the Related Art A tool holder main body of a horizontal lathe is provided with a tool holding member (lamella) capable of advancing and retracting with respect to a workpiece, and this tool holding member is provided with a tool holder of a modular tool. Then, the tool head is replaced with the tool holder based on the production control information for processing, but the tool head mounted on the tool holder is replaced by a worker.

That is, a tool holding member of a horizontal lathe is provided with a plurality of tool holders, and designated tool heads are attached to these tool holders for machining, but the tool heads are appropriately replaced depending on machining conditions. There is a need to. On the other hand, the tool head magazine stores a number of different types of tool heads, which can be used when the tool heads need to be replaced when the machining conditions change or the sharpness decreases. The old tool head is removed from the holder tool holder, and a specified new tool head is carried from the tool head magazine and mounted on the tool holder.

[0004]

However, recently, complicated and precise machining can be performed by one horizontal lathe, and there are many types of tool heads, and there are dozens and several types of tool head magazines. Stores 100 kinds of tool heads. Therefore, it is difficult to find a necessary tool head according to the machining setup, and it is possible to make a mistake, which may cause a machining error.

Further, when the tool head magazine is shared by a plurality of horizontal lathes, it is located at a position distant from the horizontal lathes, and much effort is required to search for a designated tool head from the tool head magazine and carry it to the horizontal lathe. , And the utilization rate is also declining. In addition, the tool head is heavy, difficult to carry, and dangerous.

The present invention has been made in view of the above circumstances, and an object thereof is to automatically replace the tool head with respect to the tool holder of the tool holding member of the tool rest main body. An object of the present invention is to provide an automatic tool changer capable of unmanned continuous operation day and night, improving the operation rate, and improving the safety of the operator and the reliability of machining.

[0007]

In order to achieve the above-mentioned object, the present invention provides a tool holding member which is provided in a tool rest main body of a horizontal lathe and is capable of advancing and retracting with respect to a workpiece. Equipped with a tool holder that can automatically clamp and unclamp the tool head of a modular tool, in an automatic tool changer that automatically changes the tool head for this tool holder, A tool head magazine which is provided in the tool changer body and detachably holds a plurality of tool heads and which can be indexed to a tool head replacement position; a gripper mechanism capable of gripping the tool head; and a gripper mechanism. Hold and take out the tool head of the tool head magazine and the tool head of the tool holder, and grasp the tool head with the tool head magazine and the tool head. And the ATC arm supplied to the holder,
A traverser mechanism, which is provided in the main body of the tool changer, supports the ATC arm and reciprocates between the tool head magazine and the tool holder of the horizontal lathe.

According to a second aspect of the present invention, the tool changer body is attached to the tool rest body. According to a third aspect of the present invention, the tool head magazine includes a rotary shaft axially supported in a lateral direction with respect to the tool changing device body, and a plurality of tool head magazines radially arranged around the rotary shaft to detachably hold the tool head. And a rotary drive mechanism capable of indexing the tool head to the tool head replacement position by rotationally driving the rotary shaft.

According to a fourth aspect, the tool head magazine is
An ATC arm provided on the main body of the tool changer and provided with a traverser mechanism on both sides of the tool head magazine and a grip mechanism that reciprocates between the tool head magazine and the tool holder of the horizontal lathe by the traverser mechanism is provided. It is characterized by being provided.

According to a fifth aspect of the present invention, the ATC arm comprises a cylinder and a rod which can be expanded and contracted by the cylinder, and the gripper mechanism is provided at a tip end portion of the rod so as to be rotatable about an axial center of the rod. It is characterized by

According to a sixth aspect of the present invention, the tool holding member is provided with a clamping unit driving mechanism for clamping / unclamping the tool head clamped with respect to the tool holder of the modular tool. .

[0012]

After the old tool head of the modular tool mounted on the tool holder is unclamped by the clamping unit drive mechanism, it is gripped by the gripper mechanism provided on the ATC arm to remove the old tool head, and the traverser mechanism removes the ATC. The arm is moved to a position facing the tool head magazine, and the old tool head gripped by the gripper mechanism is held by the holder of the tool head magazine. Next, the new tool head indexed to the tool head replacement position in the tool head magazine is gripped by the gripper mechanism to remove the new tool head, and the traverser mechanism moves the ATC arm to the tool holder to move the new tool head to the tool holder. And clamp the tool holder and new tool head by the clamping unit drive mechanism.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show an automatic tool changer. First, the overall schematic configuration will be described with reference to FIGS. 1 and 2. Reference numeral 1 is a tool changer body. The main body 1 is made of a flat plate and is fixed to a tool rest main body 2 of a horizontal lathe. Plate-shaped first and second tool holding members 3a and 3b are provided on both sides of the tool rest main body 2 in the longitudinal direction, and the first and second tool holding members 3a and 3b are independent of each other. It is configured to be able to move forward and backward (not shown).

A bent narrow width bending piece 4a is provided at the front end of the first tool holding member 3a, and a single tool holder 5a is provided on the bending piece 4a, and a second bending piece 4a is provided. A wide bent piece 4b is provided at the front end of the tool holding member 3b, and two tool holders 5b, 5c are provided on the bent piece 4b.
Are juxtaposed. And these tool holders 5a-5
A clamping unit described later is provided in c.

Further, the first portion is provided at the substantially central portion of the main body 1.
And a tool head magazine 6 for detachably holding a plurality of tools in parallel with the moving directions of the second tool holding members 3a and 3b.
Is provided. The tool used here is a modular tool, and the tool head magazine 6 holds a plurality of different types of tool heads a that can be attached to and detached from the tool holders 5a to 5c.

The main body 1 located on both sides of the tool head magazine 6 has first and second traverser mechanisms 7 connecting the tool head magazine 6 and the tool holders 5a to 5c.
a and 7b are provided. First traverser mechanism 7a
Is constituted by a straight-ahead robot, and the moving table 8 is adapted to reciprocate in the direction of the arrow. The moving table 8 is provided with a first ATC arm 10 via a turning actuator 9. The arm 10 has a rod 10b which can be moved back and forth by an air cylinder 10a,
The first gripper mechanism 11 has a pair of gripping pieces 11a capable of gripping the tool head a at the tip of the rod 10b.
Is provided.

The second traverser mechanism 7b is also constituted by a straight-ahead robot, and the moving table 12 is adapted to reciprocate in the direction of the arrow. The moving table 12 is provided with a second ATC arm 14 via a turning actuator 13. And the second ATC arm 14 is provided with an air cylinder 14a.
A second gripper mechanism 15 having a pair of gripping pieces 15a capable of gripping the tool head a is provided at the tip of the rod 14b. Further, the second traverser mechanism 7b is provided on the upper surface of the main body 1 and is mounted on the slider mechanism 16 orthogonal to the moving twelfth moving direction, and the second traverser mechanism 7b is connected to the tool holders 5b and 5c. It can be positioned at the corresponding position.

Next, the configuration of each part will be described in detail. FIG. 3 shows a first clamping unit 18 provided on the tool holder 5a. Reference numeral 20 denotes a unit main body, a plate 22 having a concave groove 21 in the vertical direction is fixed to the tip end surface thereof, and a support 23 is fixed to the lower end portion of the plate 22. A through hole 24 is formed in the bottom of the groove 21 in the lateral direction, and the draw bar 2 is provided in the through hole 24.
5 is provided so that it can be sunk. The drawbar 25 is provided with an engaging projection 26 that engages with an engaging recess b provided at the base end of the tool head a, and positions one end opening of the engaging recess b at the end of the engaging projection 26. By sliding the engaging convex portion 26 in the longitudinal direction (vertical direction), the engaging concave portion b and the engaging convex portion 26 are engaged with each other.

A first guide hole 2 into which the base end of a drawbar 25 is inserted in the unit body 20 so as to be able to move forward and backward.
A second guide hole 29 is provided in which the spring 7 and the spring bar 28 are inserted so as to move back and forth. An L-shaped bent portion that engages with each other is provided at the base end portion of the draw bar 25 and the tip end portion of the spring bar 28, so that the draw bar 25 is projected and retracted in the concave groove 21 by the forward and backward movement of the spring bar 28. Has become.

The second guide hole 29 is the spring accommodating hole 3
0 and the retainer housing hole 31 through the unit main body 20
Penetrates to the rear end. And spring bar 2
The rod 32 connected to the rear end portion of the rod 8 extends through the spring accommodating hole 30 and the retainer accommodating hole 31 to the rear end portion of the unit main body 20, and the screw portion 32a is formed at the rear end portion of the rod 32. Has been done.

A plurality of disc springs 33 fitted to the rods 32 are accommodated in the spring accommodating holes 30, and a spring retainer 3 for supporting the disc springs 33 is accommodated in the retainer accommodating hole 31.
4 is fixed in the stored state. The restoring force of the disc spring 33 causes the drawbar 2 to pass through the spring bar 28.
It is biased in the direction to pull in 5. That is, the tool head a is clamped by pulling in the draw bar 25 engaged with the tool head a.

Further, FIG. 4 shows a second clamping unit 19 provided on the tool holders 5b and 5c. Since it has basically the same structure as the first clamping unit 18, the same components are the same. Although attached with numbers and explanations thereof are omitted, the tool holders 5 b, 5 are provided at the front end of the unit main body 20.
Two drawbars 25 are provided corresponding to c. The spring bar 28 and the rod 32 are shared, and the spring accommodating hole 30 and the retainer accommodating hole 31 are provided in the central portion of the unit main body 20. Then, the two drawbars 25 project and retract at the same time so that the tool head a can be clamped / unclamped.

5 to 7 show the tool rest body 2 and the first tool rest.
And the second tool holding members 3a and 3b are shown, FIG. 5 is a front view, FIG. 6 is a side view, and FIG. 7 is a plan view. The bent piece 4a provided at the tip of the first tool holding member 3a is provided with an L-shaped mounting recess 40, and the mounting recess 40 is provided with the L-shaped spacer 41 so that the first The clamping unit 18 is fixed. A drive motor 42 as a clamping unit drive mechanism is fixed to the rear end of the first tool holding member 3a corresponding to the mounting recess 40. The shaft 43 of the drive motor 42 penetrates the inside of the tool holding member 3a and extends to the first clamping unit 18.

A nut portion 44 is provided at the tip portion of the shaft 43, and the rod 3 of the first clamping unit 18 is provided.
It is screwed and connected to the second screw portion 32a. Then, when the shaft 43 is rotated by the drive of the drive motor 42, the nut portion 44 is screwed with the screw portion 32 a to push the rod 32 forward, and resist the biasing force of the disc spring 33 through the spring bar 28 to draw the rod. 25 can be projected. That is, the tool head a can be unclamped by projecting the draw bar 25.

In the unclamping means, the second tool holding member 3b is the same as the first tool holding member 3a, and the same components are designated by the same reference numerals and the description thereof will be omitted. Also,
At the rear end of the tool rest main body 2, first and second tool holding members 3 are provided.
A tool holding member drive motor 45 is provided corresponding to a and 3b, and a screw portion 47 is provided at the tip of the shaft 46.
Is provided, and the screw portion 47 is screwed into a screw hole 48 provided in the first and second tool holding members 3a and 3b. Then, the shaft 4 of the tool holding member drive motor 45
By the rotation of 6, the first and second tool holding members 3a, 3b
Can independently move forward and backward with respect to the work piece.

The tool head magazine 6 is constructed as shown in FIG. That is, a pair of bearing bases 50 is fixed to the main body 1, and the shafts 5 are attached to these bearing bases 50.
Both ends of the shaft 1 are rotatably supported, and the shaft 51 is held in a horizontal state. A motor 53 as a rotary drive mechanism is attached to one bearing base 50 via a bracket 52 protruding outward.

The rotating shaft 54 of the motor 53 is the coupling 5
5 is connected to the shaft 51 via the motor 53
The shaft 51 is adapted to rotate. A drum 56 that rotates integrally with the shaft 51 is fitted to the shaft 51. The outer peripheral wall of the drum 56 has six mounting surfaces 57 in the circumferential direction, and the cross section is formed into a regular hexagon. There is. The mounting surfaces 57 are provided at five locations in the axial direction at predetermined intervals, and have a total of 30 mounting surfaces 57.

A holder 58 for holding the tool head a is provided on each of the mounting surfaces 57. Each of the holders 58 has a holding pin 59 that radially projects toward the outer peripheral direction of the drum 56, and the engaging recess b of the tool head a is held by the holding pin 59. A holding spring 60 formed of a leaf spring is attached to the holder 58 located on the side adjacent to the holding pin 59, and when the engaging recess b of the tool head a is fitted to the holding pin 59, the tool head a. Elastically presses the side surface of the tool head a
It is designed so that it does not fall even if it faces downward. Further, the designated tool head a held by the holder 58 can be indexed and positioned at the tool head replacement position 61 by the rotation of the drum 56.

Next, the operation of the automatic tool changer configured as described above will be described. After the machining of the workpiece is completed by the tool heads a mounted on the tool holders 5a to 5c of the first and second tool holding members 3a and 3b provided on the tool rest main body 2, or during the machining. It is necessary to replace the tool head a (hereinafter referred to as the old tool head) when the machining conditions have changed, but first, the old tool head a held by the tool holder 5a of the first tool holding member 3a. The case of exchanging is explained.

To unclamp the old tool head a clamped by the first clamping unit 18, first the drive motor 42 rotates. Drive motor 4
The rotational force of 2 is transmitted to the nut portion 44 via the shaft 43. The nut portion 44 is the first clamping unit 1
Since it is screwed into the threaded portion 32a of the rod 32 of No. 8, the rod 32 is pushed forward. Therefore, the disc spring 33
The drawbar 25 projects in the groove 21 via the spring bar 28 against the urging force of the drawbar 25, and the drawbar 25 and the old tool head a are unclamped.

On the other hand, the first ATC arm 10 supported by the first traverser mechanism 7a stands by in a vertical state to the side of the tool holder 5a, and when the unclamping of the old tool head a is completed, The rod 10b is moved forward by the air cylinder 10a of the ATC arm 10, and the pair of gripping pieces 11a of the first gripper mechanism 11 are positioned on both sides of the old tool head a. Then, the solenoid 11 holds the gripping piece 11.
When a is closed, the old tool head a is gripped by the gripping piece 11a. In this state, when the first gripper mechanism 11 is retracted by the first ATC arm 10, the drawbar 2
The engagement concave portion b of the old tool head a is pulled out from the engagement convex portion 26 of 5, and the tool holder 5a and the old tool head a are separated.

Next, after the first ATC arm 10 is turned by the turning actuator 9 and becomes horizontal, the first traverser mechanism 7a is actuated to activate the first ATC arm 10.
Is moved by a straight-ahead robot, and the first ATC arm 1
When 0 is located at the tool head replacement position 61 of the tool head magazine 6, it stops.

Then, the first ATC arm 10 advances again, and the old tool head a gripped by the gripping piece 11a of the first gripper mechanism 11 is moved to the tool head exchange position 61 of the tool head magazine 6.

On the other hand, the drum 56 of the tool head magazine 6
Is rotated by the motor 53, and the empty holder 58 among the plurality of holders 58 is indexed to the tool head replacement position 61 and stands by. Further, since the holding pin 59 projects toward the outer peripheral direction of the drum 56 on the holding tool 58, when the first ATC arm 10 is further advanced, the engagement concave portion b of the old tool head a is fitted into the holding pin 59. And the old tool head a is held by the holder 58 and
ATC arm 10 moves backward. Further, since the side surface of the tool head a fitted to the holding pin 59 is elastically pressed by the holding spring 60 provided on the holding tool 58, the tool head a does not drop even if the tool head a faces downward.

When the holding of the old tool head a in the magazine is completed, the drum 56 of the tool head magazine 6 is moved to the motor 5
3 is rotated again, the new tool head a is indexed to the tool head replacement position 61 and stopped. The first ATC arm 10 advances again, grips the new tool head a by the gripping piece 11a of the first gripper mechanism 11, and then retracts. Then, after the first gripper mechanism 11 separates from the holder 58, the first traverser mechanism 7a operates to move the first ATC arm 10, and the first ATC arm 10 faces the tool holder 5a. By the way, stop.

Then, after the first ATC arm 10 revolves again, it moves forward to grasp the gripping piece 1 of the first gripper mechanism 11.
The new tool head a gripped by 1a is moved to the tool holder 5a. When the engaging concave portion b of the gripped new tool head a of the first gripper mechanism 11 faces the engaging convex portion 26 of the drawbar 25, when the first ATC arm 10 advances, the engaging convex portion of the drawbar 25. 26 engages with the engaging recess b of the new tool head a.

When the drive motor 42 rotates in the reverse direction in this state, this rotational force is transmitted to the nut portion 44 via the shaft 43. Since the nut portion 44 is screwed into the screw portion 32a of the rod 32 of the first clamping unit 18, the rod 32 is pulled back backward, and at the same time, the urging force of the disc spring 33 causes the draw bar 25 to pass through the spring bar 28. Is drawn in and the draw bar 25 and the new tool head a are clamped.

Next, the tool holder 5 of the tool holding member 3b
The case of replacing the old tool head a held by b and 5c will be described. The second clamping unit 1
Since the operation of 9 is the same as that of the first clamping unit 18, the description of the unclamping means and the clamping means will be omitted.

First, when replacing the old tool head a held by the tool holder 5b, the second traverser mechanism 7 is used.
The second ATC arm 14 supported by ba waits to the side of the tool holder 5b, and when the unclamping of the old tool head a is completed, the pair of gripping pieces 15a of the second gripper mechanism 15 moves the old tool head 15a to the old tool. Located on both sides of the head a. When the gripping piece 15a is closed by the solenoid, the old tool head a is gripped by the gripping piece 15a. When the second ATC arm 14 is retracted in this state, the engaging concave portion b of the old tool head a comes out from the engaging convex portion 26 of the draw bar 25, and the tool holder 5b and the old tool head a are separated.

Next, the second ATC arm 14 is swung by the swivel actuator 13, the second traverser mechanism 7b is actuated, the second ATC arm 14 is moved by the straight-ahead robot, and the second ATC arm 14 is moved. When the tool head magazine 6 is located at the tool head replacement position 61, it stops. Then, the second ATC arm 14 advances again to move the old tool head a gripped by the gripping piece 15a of the second gripper mechanism 15 to the tool head replacement position 61 of the tool head magazine 6.

Then, the second ATC arm 14 advances to the holding pin 59 of the holder 58 indexed at the tool head replacement position 61 and waiting, and holds the engaging recess b of the old tool head a. The old tool head a is held by the holder 58 by fitting with the pin 59.

After the holding of the old tool head a in the magazine is completed, the new tool head a is indexed to the tool head replacement position 61 and stopped as described above, and the second ATC arm 14 advances again. , The gripping piece 1 of the second gripper mechanism 15
After gripping the new tool head a by 5a, it retreats.
Then, after the second gripper mechanism 15 is separated from the holding tool 58, the second traverser mechanism 7a is actuated to operate the second AT.
The C arm 14 moves and stops when the second ATC arm 14 faces the tool holder 5b.

Then, the second ATC arm 14 moves forward again, the new tool head a held by the second gripper mechanism 15 is moved to the tool holder 5b, and the engaging concave portion b of the new tool head a is drawn by the draw bar 25. Engages with the engaging convex portion 26.

When the replacement of the new tool head a with respect to the tool holder 5b is completed, the slider mechanism 16 is driven so that the entire second traverser mechanism 7b is moved and positioned at a position corresponding to the tool holder 5c. The tool head a is replaced with respect to the holder 5c, but the description is omitted because it is the same as the replacement with respect to the tool holder 5b described above.

After the replacement of the new tool head a with respect to both the tool holders 5b and 5b is completed, the second clamping unit 19 operates to clamp the new tool head a with respect to the tool holders 5b and 5c. .

In this way, the old tool head a, which has been machined based on the production control information, is removed from the tool holders 5a to 5c and stored in the tool head magazine 6, and the designated new tool head a is moved to the tool holder 5a. A series of replacement work for mounting on ~ 5c can be automatically performed, and the movability can be increased safely.

In the first embodiment, the tool holder main body 2 of the horizontal lathe is provided with the first and second tool holding members 3a,
3b is provided, the first and second traverser mechanisms 7 are provided corresponding to the first and second tool holding members 3a and 3b.
a and 7b are provided, and a common tool head magazine 6
Although the above is provided, it may be configured as shown in FIGS. 9 and 10.

That is, the tool changer body 70 is provided on the side surface of the tool rest body 2 in the vertical direction. A tool head magazine 71 and a traverser mechanism 72 similar to those of the first embodiment are provided in parallel to the main body 1, and a moving base 73 of the traverser mechanism 72 is provided with an ATC arm 75 via a turning mechanism 74. Has been. An ATC arm 75 has an air cylinder 76 for moving the rod 7 forward and backward.
7 is provided, and a gripper mechanism 78 is provided on the rod 77.

According to the second embodiment, the old tool head is taken out from the tool holder 80 provided on the tool holding member 79 and supplied to the tool head magazine 71, and the new tool head is taken out from the tool head magazine 71. The supply to the tool holder 80 can be performed in the same manner as in the first embodiment, and there is no restriction on the attachment position of the tool changer body 70 to the tool rest body 2.

In the above embodiment, the case where the horizontal lathe is equipped with the automatic tool changer has been described, but a horizontal lathe with a new automatic tool changer may be used, and the automatic tool changer described above may be applied to the existing horizontal lathe. A device may be attached to increase the added value of the horizontal lathe.

[0051]

As described above, according to the present invention, the tool head can be automatically replaced with respect to the tool holder mounted on the tool holding member provided on the tool rest main body of the horizontal lathe. In addition, there is an effect that unmanned continuous operation can be performed day and night, the operating rate can be increased, and the safety of the operator and the reliability of processing can be improved. It is also economical to add an automatic tool changer to an existing horizontal lathe to increase the added value.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an automatic tool changer showing a first embodiment of the present invention.

FIG. 2 is a plan view of the automatic tool changer of the embodiment.

FIG. 3 is a plan view, a vertical sectional side view, a front view and a rear view of the first clamping unit of the embodiment.

FIG. 4 is a plan view, a vertical sectional side view, a front view and a rear view of a second clamping unit of the same embodiment.

FIG. 5 is a front view of the tool rest body and the tool holding member of the embodiment.

FIG. 6 is a side view of the tool rest body and the tool holding member of the embodiment.

FIG. 7 is a plan view of the tool rest body and the tool holding member of the embodiment.

FIG. 8 is a vertical cross-sectional plan view of the tool head magazine of the same embodiment,
A side view and a front view.

FIG. 9 is a schematic perspective view of an automatic tool changer showing a second embodiment of the present invention.

FIG. 10 is a plan view of the automatic tool changer of the embodiment.

[Explanation of Codes] 1 ... Tool changer main body, 2 ... Turret main body 3a, 3b ...
Tool holding member, 6 ... Tool head magazine, 7a, 7b ...
Traverser mechanism, 10, 14 ... ATC arm, 11, 1
5 ... Gripper mechanism, 42 ... Drive motor (clamping unit drive mechanism), 58 ... Holder, 61 ... Tool head replacement position.

Claims (6)

[Claims] 1. A tool holder having a function capable of automatically clamping and unclamping a tool head of a modular tool on a tool holding member provided on a tool rest main body of a horizontal lathe and capable of advancing and retracting with respect to a workpiece. An automatic tool changer for automatically changing the tool head with respect to this tool holder, comprising: a tool changer main body; and a plurality of tool heads detachably held on the tool changer main body. A tool head magazine that can be indexed to a head exchange position, a gripper mechanism that can hold the tool head, a gripper mechanism that holds the tool head magazine and the tool head of the tool holder that is taken out or held An ATC arm for supplying a tool head to the tool head magazine and the tool holder; Automatic tool changer being characterized in that supporting the ATC arm anda traverser mechanism reciprocates between the tool holder of the lateral turning with the tool head magazine. 2. The automatic tool changer according to claim 1, wherein the tool changer main body is attached to the tool rest main body. 3. The tool head magazine comprises a rotary shaft axially supported laterally with respect to the tool changer body, and a plurality of tool head magazines radially arranged around the rotary shaft to detachably hold the tool head. And a rotary drive mechanism capable of rotationally driving the rotary shaft to index the tool head to a tool head replacement position.
The automatic tool changer described. 4. The tool head magazine is provided in the tool changer main body, and the traverser mechanism is provided on both sides of the tool head magazine, and between the tool head magazine and the tool holder of the horizontal lathe by the traverser mechanism. 2. The automatic tool changer according to claim 1, further comprising an ATC arm having a reciprocating grip mechanism. 5. The ATC arm is composed of a cylinder and a rod expandable / contractible by the cylinder, and the gripper mechanism is rotatably provided at a tip end portion of the rod about an axis of the rod. The automatic tool changer according to claim 1. 6. The clamping unit drive mechanism for clamping / unclamping a tool head clamped to a tool holder of the modular tool is provided in the tool holding member. The automatic tool changer described.