JPH048442A - Automatic tool changer - Google Patents

Abstract

PURPOSE:To perform a tool change quickly irrespective of the position of a tool rest by setting up a tool conveyor and a tool magazine either on a carriage mounting a tool rest. CONSTITUTION:A carriage 10 is constituted to be shiftable in a direction (arrow B direction) orthogonal with the extruding direction (arrow A direction) of a tool 12, while a tool rest 14, a tool magazine 16 and a tool conveyer 18 are all mounted on this carriage 10, and the tool magazine 16 is set up on the carriage 10 in a sense where its longitudinal direction is accorded with the tool extruding direction. The tool conveyor 18 is made up of a base plate 24 attached to the top of a frame 22 and a turning part 26 attached to the top of this base plate turnably around a vertical axis Z, and this turning part 26 turns round with a tool holder 48 as a unrl. Thus, tool change can be done at once after machining, irrespective of the position of the carriage, through which tool changing time is reduced.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an automatic tool changer (Autoa
+atic Tool Chanaer (hereinafter referred to as ATC).

[Conventional technology]

In recent years, automation of tool exchange in machine tools has been progressing, and machine tools equipped with ATC, such as machining centers, are becoming more popular.

Such ATC is mainly used for milling cutters, boring tools,
It is often used in end mills, drills, etc., and is generally equipped with a tool magazine that stores a large number of tools, and a tool transport device that moves back and forth between the tool magazine and the turret to exchange tools. .

[Problem to be solved by the invention]

Some machine tools, such as lathes, have a tool rest installed on a carriage that moves along the axial direction of a workpiece, and a tool moves together with the carriage. If the above ATC is simply installed on such a machine tool,
Every time a tool is exchanged, the carriage must be moved to the tool exchange position where the ATC is waiting, which is inefficient.

Furthermore, it is also necessary to position the carriage to the tool exchange position, making the control even more complicated.

In view of these circumstances, an object of the present invention is to provide an automatic tool changer that can quickly change tools regardless of the position of the carriage.

[Means to solve the problem]

The present invention includes a carriage configured to be movable in a direction perpendicular to the extrusion direction of the tool, a tool rest installed on the carriage so as to be movable in the direction of extrusion of the tool, and a replacement tool. , a tool magazine for indexing the necessary tools, and a tool transport device for reciprocating between the tool magazine and the above-mentioned tool post and for exchanging the tools mounted on the above-mentioned tool post. The conveyance device and the tool magazine are integrally installed on the carriage (Claim 1).
.

Roughly speaking, the tool conveyance device is composed of a base that moves straight on a carriage in the same direction as the movement direction of the carriage, and a rotating part that is rotatably mounted on the base and has a tool gripping part. The tool magazine includes a base drive means for driving the base in a straight line, and a swing drive means for swinging the swing section, and the tool magazine is configured such that the arrangement direction of the tools stored therein is the extrusion direction. If you place it in the matching direction,
More preferred (Claim 2).

Furthermore, the base drive means and the swing drive means are configured with a single drive source, and a linear drive conversion mechanism that converts the drive force of the drive source into a linear drive force of the base, and a drive force of the drive source. and a drive conversion switching mechanism that selectively switches the drive conversion state between a conversion state by the linear drive conversion mechanism and a conversion state by the rotation drive conversion mechanism. This makes it even more effective (It claim).

[For production]

According to the above configuration, the tool transport device and tool magazine installed on the carriage always move together with the tool post in the direction orthogonal to the tool extrusion direction, so regardless of the position of the carriage, the carriage Tools are exchanged at the top.

Furthermore, according to the apparatus of claim 2, by moving the base straight from the tool exchange position on the tool post, the tool transport device can be transferred toward the tool magazine. Next, by appropriately rotating the swivel base relative to the base, the orientation of the tool held by the tool transport device can be matched to the orientation of the tool stored in the tool magazine, and in this state, the tool can be loaded into the tool magazine. The old tool is returned and the new tool is taken out from the tool magazine.

Furthermore, according to the apparatus according to claim 3, both the linear drive of the base and the swing drive of the swing section are performed by a single drive source.

〔Example〕

FIG. 1 shows the overall configuration of an automatic tool changer (ATC) in one embodiment of the present invention. here,
As an example, a case where the ATC of the present invention is applied to a lathe is shown.

In the figure, 10 is a carriage, and this carriage 10 is moved in a direction (direction of arrow A) perpendicular to the extrusion direction of the tool 12 (direction of arrow A).
It is configured to be movable in the direction of arrow B). and,
On this carriage 10, a tool rest 14, a tool magazine 16,
and the tool transport device 18 are all placed there.

The tool rest 14 includes a tool slide 20 that supports the tool 12, and is installed on the carriage 10 so as to be movable in the extrusion direction of the tool 12. A pedestal 22 is arranged so as to straddle the tool rest 14, and the tool transport device 118 is mounted on this pedestal 22.

As shown in FIGS. 2 and 3, this tool transport device 18 includes a base 24 mounted on the pedestal 22, and
The rotating portion 26 is mounted on the base 24 so as to be able to rotate around the vertical axis Z (see FIG. 1).

A pair of guide rails 28 extending in the same direction as the moving direction of the carriage 10 and a rack 30 (see only FIG. 2) are fixed on the pedestal 22.

On the other hand, four slide members 32 are fixed to the lower surface of the base 24 in the front, rear, left and right directions, and these slide members 32 are engaged with the guide rail 28, so that the base 24 is moved along the guide rail 28. It is possible to slide along.

Further, as shown in FIG. 3, a binion member 36 is rotatably attached to the lower part of the base 24 via a bearing 34. An engagement hole 37 is provided at the upper end of this pinion member 36, and a pinion 38 is formed at the lower end. This pinion 38 is meshed with the rack 30, and the rotation of this pinion 38 causes the base 2 to
4 is adapted to move along the rack 30 and the guide rail 28.

In addition, in FIGS. 1 and 2, reference numeral 39 is a telescopic cover that expands and contracts as the base 24 moves and covers the guide rail 28.

On the upper surface of the base 24, a cylinder (drive conversion switching mechanism) 42 having a built-in piston 40 as shown in FIG. descends as oil is supplied to
It is raised by supplying oil to the lower hydraulic chamber 44. Further, a clutch 45 is provided on the lower surface of the lid 401 of the cylinder 42, and when the piston 40 is raised, the piston 40 and the lid 401 are integrally connected via the clutch 45. (as shown in Figure 3).

The rotating section 26 rotates [146, tool holding device 48,
and an arm 50 that connects the two.

The rotation [146] is a bearing 5 on the outer peripheral surface of the cylinder 42.
It is rotatably attached to this cylinder 42 via 1. A rotating lid 52 is integrally attached to the upper part of the rotating tube 46.
is fixed, and a drive motor (linear drive means and swing drive means) 54 is fixed downward so as to pass through the swing lid 52. This drive motor 54
The drive shaft 56 and the piston 40 are connected by a spline so that they cannot rotate relative to each other and can move up and down relative to each other.

Further, a projection 58 is provided on the lower surface of the piston 40 at a position that can engage with the engagement hole 37 of the pinion member 36.

Therefore, when the piston 40 is lowered and the drive motor 54 is operated with its protrusion 58 engaged with the engagement hole 37 of the pinion member 36, the driving force is transmitted through the piston 40 and the protrusion 58. is transmitted to the pinion member 36, and the pinion 38 of the pinion member 36 rotates while being engaged with the rack 30, so that the base 2
4 moves along the guide rail 28. On the other hand,
When the piston 40 rises and the clutch 45 and the lid 401 are connected, thereby connecting the piston 40 and the cylinder 42, the drive shaft 56 of the drive motor 54 cannot rotate, so this state When the driving motor 54 is operated, the entire rotating part 26, that is, the rotating lid 52 and the rotating cylinder 46, is integrally moved with the main body of the driving motor 54.
, arm 50, and tool holding device 48 pivot together.

Further, at the lower end of the piston 40, this piston 4
A movable cylinder 60 and a movable plate 62 that move up and down together with the piston 40 are connected to each other, and a proximity switch 64 is disposed at a position where it abuts the movable plate 62 when the piston 40 is raised, and when the piston 40 is lowered it A proximity switch 66 is arranged at a position abutting the movable cylinder 60.

The tool holding jaw ff48 incorporates a cylinder 68 that operates in the vertical direction, and an elevating plate 72 is fixed to the lower end of a cylinder rod 70 of the cylinder 68. Two tool gripping jaws [74, 75, as also shown in FIGS. 4 to 6, are suspended below the elevating plate 72.

Each tool gripping device 74, 75 has two opposing support plates 76 that are arranged in the front-rear direction (left-right direction in FIG. 4), and the upper ends of both support plates 76 are connected to each other by a connecting plate 77. has been done.

A pair of left and right (left and right in FIG. 5) projecting plates 78 are provided on the outer surface of each support plate 76 . On the other hand, the elevating plate 72
A hanging member 80 is fixed to the lower surface of the projecting plate 78 at a portion located between each of the protruding plates 78 .

A shaft 82 is inserted horizontally into the hanging member 80 and both protruding plates 78, and a retaining ring 84 is fixed to both ends of the shaft 82.
is suspended and supported from the lifting plate 72 so as to be movable in the left and right direction. Further, a disc spring 85 is press-fitted between the hanging member 80 and each protruding plate 78, and the elastic force of this disc spring 85 holds each support plate 76 at a central position.

A grip opening/closing cylinder 88 is disposed approximately in the center between both support plates 76 . A flange portion 90 (FIG. 4) is formed at the upper portion of this grip actuation cylinder 88, and this flange portion 90 is fixed to the upper ends of both support plates 76. An oil chamber 9 accommodating an intermediate portion 921 of a rod 92 passing through the cylinder body is located below this 7-lung portion 90.
4 is formed, and the oil chamber 94 is divided into two by the intermediate portion 921.
It is divided into two working chambers 95,96, each working chamber 95.
．． By appropriately supplying oil to the rod 96, the rod 92 moves in the left-right direction.

Further, a support shaft 98 extending in the vertical direction is disposed between the lower surface of the grip opening/closing cylinder 88 and the connection plate 77, and a pinion gear 100 is rotatably mounted around the support shaft 98 via a bearing 99. installed.

A pair of opposing plate-shaped grip members 102 and 103 are disposed on both left and right sides of the grip opening/closing cylinder 88.

The upper end of one grip member 102 is fixed to one end of the rod 92 by a bolt and nut mechanism,
The other end of the rod 92 simply passes through the upper end of the other grip member 103. Thus, the gripping member 102 moves in unison with the rod 92, whereas the gripping member 103 moves in opposition to the rod 92.

A guided member 104 extending in the left-right direction and having a trowel-shaped cross section as shown in FIG. A rack support portion 106 extending in the same direction as the guide member 104 extends from the inner surface, and a grip protrusion 107 for supporting the tool 12 is fixed to the inner surface of the lower end. For details, see grip member 1.
Guided member 104 and rack support section 106 on the 02 side
is placed in front of the grip opening/closing cylinder 88 (in FIG. 6, above), and the guided member 104 on the grip member 103 side and the rack support part 106 are placed in the rear of the grip opening/closing cylinder 88 (in FIG. 6, It is placed in the lower position.

On the other hand, the guided member 104 is sandwiched between the inner surface of the support plate 76 and the vertical wall of the grip opening/closing cylinder 88. This allows each grip member 102.1
03 is supported movably in the left and right direction with respect to the support plate 76.

Further, a rack 110 extending in the left-right direction is fixed to each rack support portion 106, and both racks 110 are meshed with a common pinion gear 100.

Therefore, when the grip opening/closing cylinder 88 operates, one of the grip members 102 moves in the opening/closing direction (left/right direction) together with the rod 92, and furthermore, the operating force of this grip member 102 is applied to the rack 110 and the pinion gear. 100 to the other grip member 103, this grip member 103 always moves so as to be positioned symmetrically with the grip member 102. This operation realizes opening and closing of both grip members 102 and 103.

On the other hand, as shown in FIG. 7, the tool holding device 14
A brush mounting part 111 is provided on the lower side of the tool rest 14 (the right side in FIG. 7), and a brush for cleaning chips (in this embodiment, a stainless steel ) 112 is installed. In addition,
For convenience, illustration of the brush 112 is omitted in Ike's drawing.

The tool slide 20 has a structure as shown in FIG.

This tool slide 20 has a housing 114 having the same width as the tool 12, and a tool mounting portion 11, on which the tool 12 is mounted, is located at the upper front end of the housing 114.
3 is provided.

Inside this housing 114, a tool pull-in shaft 116 extending in the front-rear direction (horizontal direction in the figure) is supported so as to be movable forward by a bearing 115, and a tool-drawing shaft 118 extending in the vertical direction is movable up and down by a bearing 117. These are supported in the axial direction by driving means (not shown). In addition, the tool retraction shaft 1
16 and the upper end of the tool pull-down shaft 118 protrude into the tool mounting portion 113, and locking portions 116a and 118a each having a larger diameter than the other portions are formed at the protruding ends.

Further, serrations are formed on the upper surface 113a of the tool mounting portion, and a clamp portion 119 is provided protruding forward from the upper front surface of the tool mounting portion.

The lower surface of this tool clamp portion 119 is a slope that becomes higher toward the front.

On the other hand, the tool 12 mounted on this tool slide 20 has a structure shown in FIG. 9.

That is, a hole-shaped locked part (first locked part) 121 that opens downward is formed at the rear end of the tool 12, and this locked part 121 is connected to the tool retracting section. Axis 11
Large diameter portion 121a into which the locking portion 116a in 6 is fitted
and a small diameter portion 121b into which a small diameter portion other than the locking portion 116a is fitted.

Furthermore, an insertion hole 122 that opens downward is formed at a position in front of the locked portion 121 . The insertion hole 122 extends in the front-rear direction, and the tool pull-down shaft 118 is inserted into the insertion hole 122 when the locked portion 121 and the locked portion 116a are engaged.
A locking portion 118a is provided at a position where it can be inserted.

Further, from the upper part of this insertion hole 122 to the lower part of the front wall 1
The locked portion 123 is inserted so as to bite forward of the portion 22a.
The locked portion 123 has a height larger than that of the locking portion 118a.

Further, the entire lower surface of the tool 12 is provided with serrations 124 that are fitted with the serrations formed on the upper surface 113a of the tool mounting portion. Also, this tool 1
A clamped surface 125, which is an inclined surface that matches the tool clamping portion 119, is formed at the upper rear end of the tool 2.

As shown in FIG. 1, the tool magazine 16 is arranged on the carriage 10 with its longitudinal direction matching the tool extrusion direction, and has an internal structure as shown in FIG. There is.

In the same figure, 130 is a housing of the tool magazine 16, and the tool gripping device M74.75 of the tool holding device 248 enters the upper front part of this housing 130 (upper right part in FIG. 10) from above. An entrance 132 is provided for the purpose.

On the other hand, an endless chain member 134 wound around the same sprocket is provided inside the housing 130, and the replacement tool 12 is removably engaged with the outer surface of each component 136 of the chain member 134. A locking portion 138 is provided. The arrangement direction of this chain member 134,
That is, the arrangement direction of the tools 12 stored in the tool magazine 16 matches the longitudinal direction of the tool magazine 16, that is, the tool extrusion direction, and each tool 12 is arranged in the longitudinal direction (left-right direction in FIG. 9). The tool is stored in the worker magazine 16 in a state perpendicular to the tool extrusion direction.

On the other hand, detection signals from the proximity switches 64, 66 and various sensors are input to a numerical calculation control device (not shown), and this numerical calculation control device controls the driving of the drive motor 54 and the tool magazine 16. Operation control, drive control of each axis 116, 118 in the tool slide 20, etc. are performed.

Next, the tool exchange operation performed in this device will be explained.

First, a workpiece is machined with the tool 12 attached to the tool mounting portion 113 of the tool slide 20 as shown in FIG.

To explain the attachment operation of the tool 12 at this time, first, as shown in FIG. By placing the tool 12 on the tool mounting portion 113 in a protruding state, the serrations 124 on the lower surface and the tool mounting portion 113
The serrations formed on the upper surface 113a are fitted. At the same time, the locking portion 116 of the tool retraction shaft 116
a and the locked portion 121 of the tool 12 are fitted, and the locking portion 118a of the tool pull-down shaft 118 is inserted into the insertion hole 1 of the tool 12.
22.

Next, as the tool retraction shaft 116 moves rearward, the tool 12 is pulled rearward by the tool retraction shaft 116, and the clamped surface 125 and the tool clamp portion 119 come into contact with each other, and the tool retraction shaft The locking portion 118a of 118 is fitted into the locked portion 123. Further, as the tool pull-down shaft 118 descends from this state, the tool 12 engaged with the locking portion 118a is pulled downward with a large force, and becomes completely fixed as shown in FIG. .

In this fixed state, the entire tool rest 14 is pushed out in the tool extrusion direction relative to the carriage 10, and the carriage 10 moves in the axial direction of the workpiece with the tool 12 in contact with the rotating workpiece. , cutting of the workpiece proceeds.

At this time, the tool gripping device 48 of the tool transport device w18 is located above the tool magazine 16, as shown in FIG. The new tool to be replaced is held and on standby.

After machining, the tool rest 14 is retracted to the tool exchange position as shown in FIG. In this state, oil is supplied to the lower working chamber 44 shown in FIG. 3, which causes the piston 40 to rise, thereby connecting the I401 and the piston 40 via the clutch 45. Furthermore, by operating the drive motor 54 in this state, the drive motor 5
The rotating portion 26 is integrally driven to rotate in the counterclockwise direction when viewed from above. Then, this turning part 26 is 9
The drive of the drive motor 54 is temporarily stopped at the time of turning 0°. As a result, the tool holding device 48 included in the rotating portion 26 is positioned in front of the pedestal 22.

Next, as oil is supplied to the upper working chamber 43, the piston 40 descends and the protrusion 58 moves toward the pinion member 36.
The clutch 45 is engaged with the engagement hole 37 of the clutch 45.
and the piston 40 is disconnected. In this state, when the drive motor 54 operates again, the rotational force is transmitted to the pinion member 36 via the drive shaft 56 and the piston 40.
is transmitted to the pinion gear 38 of this pinion member 36.
By rotating while being engaged with the rack 30,
The entire tool transport device 18 including the base 24 is driven straight along the guide rail 28 and approaches the tool post 14. Then, when the tool gripping device that is not gripping a new tool (the tool gripping device 175 in this embodiment) comes directly above the tool mounting portion 113 of the tool slide 20, the above drive is stopped,
The entire tool transport device 18 also stops.

During the above movement, as shown in FIG.
When the cleaning brush 112 provided on the side surface of the tool 12 comes into contact with the upper surface of the tool 12, chips accumulated there are automatically cleaned. Also, after this movement, tool slide 2
Tool retraction shaft 116 and tool retraction shaft 11 at 0
The fixation of the tool 12 is released by performing the operation opposite to the above.

On the other hand, the grip members 102 and 103 of the tool gripping device 75
is in a wide open state due to the operation of the grip opening/closing cylinder 88. From the state where this tool gripping device 75 is directly above the tool 12, the cylinder 68 shown in FIG.
When the rod 70 is extended, the members below the elevating plate 72 are lowered together, and the grip members 102 and 103 of the tool gripping device 75 are positioned directly to the side of the tool 12 mounted on the tool mounting portion 113. (See Figure 7).

In this state, by operating the grip opening/closing cylinder 88 of the tool gripping device f75, both grip members 102
．． 103 closes, and the tool 12 on the tool mounting portion 113 is held from both sides by these.

Next, the members below the elevating plate 72 are lifted by the operation of the cylinder 68, and the tool gripping jaw w174 is moved to the tool slide 20 by the operation of the drive motor 54.
The tool transport device reaches a position above the tool mounting section 113!
118 is transferred. In this state, the cylinder 68 is operated again and the elevating plate 72 and the like are lowered together, so that the new tool 12 held by the tool holding device 174 is placed on the tool mounting portion 113. And the tool gripping device 7
Both grip members 102, 103 of 4 are opened, and the tool retraction shaft 116 of the tool slide 20 and the tool retraction shaft 1 of the tool slide 20 are opened.
18 operates, new tool 1 is created in the same way as above.
2 is fixed to the tool mounting portion 113.

Thereafter, the elevating plate 72 rises again, and the drive motor 54 operates to move the tool transport device 18 to the standby position shown in FIG. The old tool 12 is returned to the tool magazine 16 by the tool gripping device i75, and the new tool 12 is taken out from the tool magazine 16 by the tool gripping device 74.

As described above, in this device, the tool magazine 16 and the tool transport device i1 are mounted on the carriage 10 on which the tool rest 14 is mounted.
8 are placed integrally, tools can be exchanged immediately at any position of the carriage 10. Therefore, it is possible to significantly shorten the exchange time, and there is no need to position the carriage at the tool exchange position as in the conventional case, and the contents of the control are also simplified.

Furthermore, according to the apparatus shown in this embodiment, the following effects can be obtained.

(a) In this device, the tool magazine 16 is arranged so that its longitudinal direction (that is, the direction in which the tools 12 are arranged) matches the extrusion direction of the tools 12, so that the layout of the entire device can be made more compact. is possible,
This facilitates the integral mounting on the carriage 10. Moreover, the tool conveyance device 18 is constituted by a base 24 that is driven in a straight line and a turning section 26 that is driven to turn, and the orientation of the tool gripping devices 74 and 75 can be freely changed by turning the turning section 26. , no matter which direction the tool magazine 16 is placed, the tool gripping device can be improved by appropriately rotating the rotating section 26 in accordance with the orientation. 74.75, tools can be returned and taken out smoothly.

(bl) In this device, the drive motor 54, which is a single drive source, drives the base 24 in a straight line and the rotating part 2.
Since both of the rotational drives (6) and the switching of the drives described above are performed by the operation of the piston 40, it is possible to reduce the weight, size, and cost of the device by using a common drive source.

(C) In this device, since two tool gripping devices 74 and 75 are installed in parallel in the tool transport device 18, the tool rest 14 and
After taking out the tool 12 at the position by the tool gripping device 75,
Without returning the tool 12 to the tool magazine 16, a new tool 12 can be supplied to the tool rest 14 by the tool gripping device 74 without returning the tool 12 to the tool magazine 16. Moreover, both tool gripping devices! 74 and 75 are located adjacent to each other, and the time required from taking out the old tool 12 by the tool gripping jaw W175 to supplying the new tool 12 by the tool gripping device 74 is very short, so the tool change time is significantly shortened. Ru.

(d) In this device, the position is closer to the tool rest 14 than the tool gripping device 74.75 (in FIG.
．． Since the cleaning brush 112 is provided at a position on the right side of 75, the tool gripping devices 74 and 75 are
By bringing the cleaning brush 112 into contact with the surface of the tool 12 before reaching the upper tool 12, chips generated during machining can be automatically removed.

(e) In the tool gripping device 74,75, the support plate 7
6 is attached so as to be movable in the left and right direction with respect to the elevating plate 72,
Since the resilient force of the disc spring 85 is used to hold the tool 12 in the central position, the center of the tool 12 is aligned with both grip members 10.
Even if both grip members 102 and 103 are closed in a state where they are not aligned with the center of 2.103, the support plate 76 is displaced in the left and right direction according to the difference, which is the so-called floating function. Capable of grasping.

In the present invention, regardless of the structure for locking the tool in the tool rest or tool magazine, it is sufficient to appropriately select and use a receiver that allows the tool to be transferred to and from the tool transport device.

Further, the machine tool to which the ATC of the present invention is applied is not limited to the above lathe, but can be widely applied to machines equipped with a carriage on which a tool post is mounted.

〔Effect of the invention〕

As described above, in the present invention, the tool transport device and the tool magazine are integrally installed on the carriage on which the tool post is mounted, so regardless of the position of the carriage,
Tools can be replaced immediately after machining, thereby reducing tool replacement time. In addition, since there is no need to position the carriage at the tool exchange position by ATC as in the prior art, the control content can be further simplified and the cost of the apparatus can be reduced.

Furthermore, the tool transport device is configured by a base that moves straight and a rotating section that rotates with respect to the base,
According to the tool magazine arranged in a direction in which the tools are arranged in the magazine in a direction that matches the extrusion direction,
The entire device can be made more compact, thereby making the device lighter and smaller, and each device can be more easily placed on the carriage.

Furthermore, a linear drive conversion mechanism that includes a single drive source and converts the driving force of this drive source into a linear driving force for the base, and a swing drive that converts the driving force of the drive source into a turning driving force for the swing section. According to a device equipped with a conversion mechanism and a drive conversion switching mechanism that selectively switches the drive conversion state between a conversion state using a linear drive conversion mechanism and a conversion means using a swing drive conversion mechanism, the drive source can be shared. It is possible to achieve smaller size, lighter weight, and lower cost.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of an automatic tool changer according to an embodiment of the present invention, FIG. 2 is a perspective view showing a support structure of a base in the same device, and FIG. 3 is an internal structure of a tool transport device in the same device. 4 is a partially sectional side view showing a tool gripping device in the same tool transport device, FIG. 5 is a partially sectional front view of the same tool gripping device, and FIG. 6 is a partially sectional front view showing the same tool gripping device. 7 is a sectional bottom view of the device; FIG. 7 is a front view showing the tool holding device and cleaning brush in the tool transport device; FIG. 8 is a sectional side view showing the main parts of the tool slide on which the tool is installed; FIG. 9 is a sectional bottom view of the device; 10 is a cross-sectional side view showing the main parts of the tool magazine, and FIG. 11 is a cross-sectional side view showing the main parts of the tool slide before the tool is mounted. be. DESCRIPTION OF SYMBOLS 10... Carriage table, 12... Tool, 14... Tool post, 16... Tool magazine, 18... Tool transport device,
24... Base, 26... Swivel part, 30... Rack (constituting a linear drive conversion mechanism), 36... Binion member (constituting a linear drive conversion mechanism), 40... Cylinder (drive 45...Clutch (constituting the swing drive conversion mechanism), 48...Tool holding device, 52...Swivel lid (constituting the swing drive conversion mechanism), 54...Drive motor ( base drive means and swing drive means), 74.75
...Tool gripping device. Patent applicant Agent: Shin Nippon Koki Co., Ltd.
Patent Attorney Etsushi Kotani Patent Attorney Chief 1) Masaaki Patent Attorney 9 Takao Fuji

Claims (1)

[Claims] 1. A carriage configured to be movable in a direction perpendicular to the extrusion direction of the tool, a tool rest installed on the carriage so as to be movable in the direction of extrusion of the tool, and a replacement Store your tools,
A tool magazine for indexing necessary tools, and a tool transport device for reciprocating between the tool magazine and the turret and exchanging tools mounted on the turret, and the tool transport device and an automatic tool changer, characterized in that the tool magazine is integrally installed on the carriage. 2. The automatic tool changer according to claim 1, wherein the tool transport device is mounted on a carriage and a base that moves straight in the same direction as the movement direction of the carriage, and is rotatably mounted on the base; A rotating part having a tool gripping part, a base driving means for driving the base in a straight line, and a turning driving means for driving the rotating part to rotate, and the tool magazine is stored therein. An automatic tool changer characterized in that the tools are arranged in a direction that matches the extrusion direction. 3. The automatic tool changer according to claim 2, wherein the base driving means and the swing driving means are constituted by a single driving source, and the driving force of the driving source is converted into a straight driving force of the base. a drive conversion mechanism, a swing drive conversion mechanism that converts the driving force of the drive source into a swing drive force of the swing section, and a drive conversion state that can be selected between a conversion state by the linear drive conversion mechanism and a conversion state by the swing drive conversion mechanism. An automatic tool changer characterized in that it is equipped with a drive conversion switching mechanism that switches automatically.