JPH0438905Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a punch press, and more particularly to improvements in a work support table and a work transfer table for supporting and transporting a work.

[Prior Art] Conventionally, a turret punch press work support table, which is one of the punch presses, has a work fixing table placed in the center, which is fixed to a carriage base on both sides in the X-axis direction, and at the same time in the Y-axis direction. A moving workpiece moving table is installed.
A large number of free ball bearings that rotate in both the X-axis and Y-axis directions are arranged on both the workpiece fixing table and the workpiece moving table. However, the rotation of the free ball bearing cannot follow the high-speed work feed, and since the work and the free ball bearing are in point contact, there is an inherent problem that scratches occur on the back surface of the work.

[Problems to be solved by the invention] In view of the above-mentioned conventional problems, the invention solves the following problems:
A punch is attached to a ram that is movable up and down above the die supported by a fixed die holder, and a carriage base is attached to a carriage base that is movable in the Y-axis direction relative to the processing position of the workpiece by the punch and die. , a workpiece support that is provided with a carriage that is movable in the X-axis direction orthogonal to the Y-axis direction, and that supports the workpiece that is gripped by a clamp provided on the carriage and moved in the X-axis and Y-axis directions. A table is integrally provided on both sides of the carriage base in the X-axis direction, and an endless caterpillar table provided between the two workpiece support tables has a width slightly larger than the diameter of the die,
The work support table and the caterpillar table are provided with a plurality of rollers that rotate and support the work when the work moves in the X-axis direction.

[Means for solving the problem] In order to achieve the above object, the present invention uses a punch,
A mold with a pair of dies is attached to a frame, and a workpiece transfer table having a width slightly larger than the maximum diameter used is placed adjacent to one end of the die attachment part of the mold in the Y-axis direction in the Y-axis direction. It is provided to extend freely and to be recessed from the pass line in the vicinity of the die attachment part, and a workpiece support table is provided on both sides of the workpiece conveyance table in the X-axis direction, and a workpiece clamp for gripping the workpiece is provided. The present invention is characterized in that a carriage base supporting a carriage movably in the X-axis direction is connected to the work conveying table and the work supporting table.

[Function] By configuring the punch press as in the present invention, it is possible to transport the work without causing damage to the back surface of the work.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

Referring to FIGS. 1 and 2, the punch press 1 includes a ram 7 that is provided with a punch 3 that is detachably and replaceably mounted above a die 5 that is detachably supported by a fixed die holder provided on a frame. The punch 3 and the die 5 are used to process the workpiece W.
C that supports the punch 3, die 5, ram 7, etc.
The mold-shaped frame 9 is a box-shaped lower frame 1
1. It is composed of an intermediate frame 13 provided behind the lower frame 11, that is, on the right side in FIG. 2, and a box-shaped upper frame 15 provided on the intermediate frame 13. More specifically, the lower frame 11 and the intermediate frame 13 are integrally provided by welding or the like. intermediate frame 1
The lower member 15A of the upper frame 15 is placed on the upper member 13A of No. 3, and the intermediate frame 13
In FIGS. 1 and 2, a plurality of tie rods 17, for example two tie rods, are vertically connected to the intermediate frame 13 and the lower frame 11 from above the upper frame 15 on the left side. When connecting, an appropriate preload is applied to the tie rod 17 to prevent bending. On the right side of the tie rod 17 is the lower member 15A of the upper frame 15.
A reinforcing plate material 19 is placed on top of the plate material 19, and a plurality of bolts 21 are attached to the upper frame 15 from above the plate material 19.
The lower member 15A of the intermediate frame 13 and the upper member 13A of the intermediate frame 13 are screwed and fixed. A support member 23 is inserted between each plate material 19 and the upper member 15B of the upper frame 15 for reinforcement. Therefore, by applying an appropriate preload force with the tie rods 17 and integrating the upper frame 15 and the intermediate frame 13, it is possible to increase the gap between the upper frame 15 and the intermediate frame 13. It becomes possible.
Further, the bending of the upper frame 15 is extremely reduced, and the frame 9 can be easily manufactured, and the processing accuracy of the workpiece W can be improved.

A swan neck portion 25 is fixedly provided on the lower frame 11 by, for example, welding, at the waist between the upper frame 15 and the lower frame 11.

A die 5 is placed on the left end side of the lower frame 11 in FIG. A punch 3 is mounted above the die 5 on the tip side of the swan neck portion 25. Since the punch 3 and the die 5 are a pair of molds, both are vertically aligned. Furthermore, both the punch 3 and the die 5 can be angularly indexed by a drive device (not shown). A ram drive device 27 is located at the left end of the upper frame 15 in FIGS. 1 and 2.
A ram 7 is attached to the lower part of the ram drive device 27 and can move up and down.

A bed 29 is arranged on the front side of the lower frame 11, that is, on the left side of the lower frame 11 in FIG. 2, and is integrated with the lower frame 11 by welding or the like. A guide member 31 is placed on the bed 29.
is placed on the guide member 31, and a rail 33 is placed on the guide member 31.
Extends in the axial direction. A slider member 37 attached to the lower part of the projection 35T of the carriage base 35 and extending in the Y-axis direction is guided by the rail 33 and is movable in the Y-axis direction. That is, in FIGS. 1 and 2, the bed 29
on the left end side, approximately in the center of the X-axis direction.
A shaft motor 39 is attached. Y-axis motor 3
The rotation from 9 is transmitted to the feed screw 41 via gears or the like. The carriage base 35 is attached to the feed screw 41, and the rotation of the feed screw 41 moves the carriage base 35 in the Y-axis direction.

The carriage base 35 has a base 35M and a protrusion 3.
It is formed from 5T and has a carriage base of 35
The shape is symmetrical with respect to the center line in the X-axis direction. Therefore, the weight of the carriage base 35 is balanced with respect to the center line in the X-axis direction.

As is clear from FIG. 2, the X-axis motor is located approximately at the center in the X-axis direction of the plurality of guide members 31, for example, two guide members 31 guiding the carriage base 35, that is, at a position where the load on the guide members 31 is approximately uniform. 43 is installed. The X-axis motor 43
A feed screw 45 is provided extending along the X-axis direction, and one end portion of a carriage 47 is attached to the feed screw 45. At the base 35M of the carriage base 35, a guide member 49 is provided extending along the X-axis direction toward the right side in FIG. It is installed and extends in the axial direction. A slider member (not shown) is supported at the bottom of the carriage 47, and the slider member is guided by the rail 51 and moved in the X-axis direction. Therefore, the X-axis motor 43
The rotation of the carriage 4 is transmitted to the feed screw 45.
The slider member supported at the bottom of the rail 51
By being guided by the carriage 47, the carriage 47 is movably moved in the X-axis direction.

The carriage 47 is provided with a clamp 53 for gripping the workpiece W. More specifically, as shown in FIGS. 1 and 2, the carriage 47
For example, two clamps 53 are provided on the right side. After the workpiece W is brought in from the front side in FIG. 1 and positioned by contacting the positioning stopper 55 provided on the rear side, the clamp 5
It is clamped by 3.

In order to support the workpiece, workpiece support tables 57 are provided on both sides of the bed 29 at the front and rear in FIG.
mounted on. Therefore, the workpiece support table 57 is moved together with the carriage base 35 in the Y-axis direction.

A caterpillar table 59 for transporting the workpiece W is provided between the workpiece support tables 57 provided on both sides of the bed 29. More specifically, the caterpillar table 59 is formed with a width slightly larger than the diameter of the die 5. Both ends thereof are connected to two slider members 37 attached to the lower part of the carriage base 35. Moreover, the caterpillar table 59 is wound around a plurality of sprocket wheels 61, for example four sprocket wheels, which are provided on the left and right sides of the bed 29 in FIG. Therefore, by moving the carriage base 35 in the Y-axis direction by the Y-axis motor 39, the caterpillar table 59 is moved in the same way as the workpiece support table 57.
is also moved in the Y-axis direction.

As is clear from Fig. 1, the workpiece support table 5
7, a large number of rollers 63 are provided at appropriate intervals, and the caterpillar table 59 is also provided with a large number of rollers 63, similarly to the rollers 63 described above, at appropriate intervals. When the workpiece W placed on the rollers 63 and 65 moves in the Y-axis direction, the rollers 63 and 65 do not rotate, but when the workpiece W moves in the X-axis direction, the rollers 63 and 65 do not rotate. 63 and the roller 65 rotate and serve to smoothly move the workpiece W in the X-axis direction.

Therefore, the X-axis motor 43 is provided approximately at the center of the base 35M of the carriage base 35 in the X-axis direction, and
5 is symmetrical with respect to the center line in the X-axis direction, so that the carriage 47 is
In the figure, even if the workpiece W is moved toward the front as shown by the two-dot chain line, the weight is balanced, so the inclination of the workpiece W is extremely small. Since the inclination of the workpiece W is extremely small, the machining accuracy during machining is further improved, and since there are no obstacles in front of the X-axis motor 43, workability during manufacturing and assembly is improved.

Furthermore, since only one pair of molds consisting of the punch 3 and the die 5 is provided in this embodiment, the sliding area on the back surface of the workpiece W is extremely small.
The occurrence of scratches on the back side of the workpiece W is drastically reduced. Furthermore, by narrowing the width of the caterpillar table 59, when the work support table 57 is moved in the Y-axis direction, the vertical swing of the caterpillar table 59 is extremely small, and the weight of the caterpillar table 59 itself is Since the noise is also reduced, the positioning accuracy of the workpiece W is improved and the noise is also reduced.

The first part on the rear side of the mold that pairs the punch 3 and die 5.
A transport caterpillar table 67 is provided on the right side in the figures and FIG. More specifically, this transport caterpillar table 67 supports the vicinity of the end opposite to the end where the workpiece W is held by the clamp 53, and also supports the vicinity of the end opposite to the end where the workpiece W is held by the clamp 53. It is something. This conveyor caterpillar table 67 is located on both sides of the lower frame 11.
It is wound around a plurality of sprocket wheels 69, for example two sprocket wheels, which are provided on the left and right sides in the figure.
Therefore, the transport caterpillar table 67 is moved in the Y-axis direction by a drive device (not shown). This movement of the conveying caterpillar table 67 in the Y-axis direction is preferably performed in synchronization with the movement of the caterpillar table 59 described above. When carrying out the processed workpiece W, the carriage base 35 is moved to the right in the Y-axis direction in FIGS.
After moving upward, only the transport caterpillar table 67 is moved to the right, and the workpiece W is transported out of the machine through the notch 71 on the rear side of the intermediate frame 13.

Furthermore, as is clear from FIG. 1, a large number of rollers 73 are provided on the conveying caterpillar table 67 at appropriate intervals. This roller 73, like the rollers 63 and 65 described above, functions to smoothly move in the X-axis direction.

In FIG. 1, the conveyor caterpillar table 67
The left side of the can be lowered. More specifically, as shown in FIG. 3, a fluid cylinder 75 is attached to a part of the lower frame 11, and one end of a piston rod 77 of the fluid cylinder 75 supports a sprocket wheel 69.
It is attached to the left side of 9. By activating fluid cylinder 75 and lowering piston rod 77, left sprocket wheel 69 is lowered. The reason why the left side of the conveyor caterpillar table 67 can be lowered is to make it possible to carry out small-sized workpieces that have been cut off by cutting out the outline of the workpiece W such as a large-sized regular-sized plate. be. Note that even if the entire caterpillar table 67 is lowered uniformly, it is possible to carry out small-sized processed products.

Next, a ram drive device 27 for raising and lowering the ram 7 is provided on the tip side of the upper frame 15, particularly on the left side in FIG. More specifically, as is clear from FIGS. 1 and 2, the drive motor 81 is located approximately in the center between the upper members 15B of the upper frame 15.
A support member 15C that supports the is placed. A pulley 83 is attached to the inside of the left frame 15D of the upper frame 15. The drive motor 81 and pulley 83 are connected by a shaft 85.
Therefore, the rotation of the drive motor 81 is caused by the rotation of the shaft 8.
5 to the pulley 83. A casing 87 of the ram drive device 27 is fitted into the left frame 15D from the outside. A crankshaft 89, a connecting rod 91, a flywheel 93, a clutch/brake device, a ram 7, etc. are integrated into the casing 87 as a unit. Therefore, the ram drive 27 is connected to the left frame 1 of the upper frame 15.
It can be attached to and detached from the 5D.

A crankshaft 89 extending in the Y-axis direction is rotatably supported at approximately the center of the casing 87 in the height direction. A flywheel 93 is supported on the right side of the rear side of the crankshaft 89 in FIG. 2 via a bearing, and a clutch brake device 95, such as a combination clutch brake, is mounted on the right side via a key.
The crankshaft 89 inside the casing 87 has
A connecting rod 91 is connected, and the ram 7 is attached below the connecting rod 91 via a connecting screw 97. A ram guide 99 is attached to the casing 87 in the vertical direction on the outer circumference of the ram 7 and guides the ram 7 as it moves up and down. The ram 7 and the punch 3 are connected via a spherical seat 101. The spherical seat 101 serves to absorb the vibration of the ram.

A belt 103 is wound around the above-mentioned pulley 83 and flywheel 93, and the rotation of the drive motor 81 is transmitted to the flywheel 93 by the belt 103.

The rotation transmitted to the flywheel 93 is transmitted from the flywheel 93 to the crankshaft 89 when the clutch of the clutch brake device 95 is turned on, and from the flywheel 93 to the crankshaft 89 when the brake of the clutch brake device is turned on. It is no longer transmitted to
The rotation transmitted to the crankshaft 89 causes the connecting rod 91 to move up and down, so that the ram 7 is guided by the ram guide 99 and raised and lowered.
Since the punch 3 is attached to the ram 7, the punch 3 is raised and lowered.

Therefore, the ram drive device 27 is removably installed on the tip side of the upper frame 15, and since the ram drive device 27 is provided symmetrically from the front, the clutch brake device 95 generates less heat, and the frame 9 This eliminates deformation.

Furthermore, in the punch press of this example,
On one plane inside the neck part of the swan neck part 25, there is an automatic mold exchange device 105 that automatically exchanges a mold pairing a punch 3 and a die 5, and a mold storage magazine 107 that stores a plurality of molds. They are arranged as shown in FIGS. 1 and 2.

An attachment portion 109 of the mold storage magazine 107 is rotatably attached to the upper frame 25A of the swan neck portion 25 by a drive device (not shown).
A plurality of mold storage sections 113 are provided radially around the circumference of a disc-shaped rotary table 111 of the mold storage magazine 107 . The mold storage section 113
A necessary mold is stored in each of the molds, and the mold necessary for the next process is indexed to the mold exchange position 113A where one of the mold storage parts 113 shown in FIG. The mold exchange device 105 automatically exchanges the molds.

As shown in FIGS. 4 to 7, the automatic mold converting device 105 is provided with a plurality of units, for example, in a 90 degree direction, so as to be freely expandable and contractible in the radial direction and movable in the vertical direction around the drive shaft 115. Gritzpa 11
Two 7's are installed. The gripper 117 consists of a pair of gripper arms 119, each gripper arm 119 being rotatably attached to a gripper holder 121 with a plurality of pins 123. Each gripper 117 is provided with an opening/closing cylinder 125 for opening and closing the gripper arm 119, and a piston rod 127 provided in the opening/closing cylinder 125 is provided.
The inner side of the gripper arm 119 facing each other is
In the figure, the gripper arm 119 is actuated so as to be able to move up and down and rotate about the pin 123 as a fulcrum as shown by the arrow. Therefore, by operating the opening/closing cylinder 125, the piston rod 127 moves in and out of the vertical direction in FIG. 4, rotates the gripper arm 119, and clamps and unclamps the mold.

In order to extend and retract the gripper 117 in the radial direction, an entry/exit cylinder 129 is provided. The piston rod 131 of the cylinder 129 for entry and exit is the fourth
As is clear from the figures and FIG. 5, the mounting plate 133
It is attached to one side of the bracket 135 via. The bracket 135 is attached to the gripper holder 121
It is fixed to with a plurality of bolts 137. A slider member 139 is fixed to the back side of the bracket 135 with a plurality of bolts 141. The slider member 139 is guided by the guide rail 143 and
It is moved left and right in the figure. Therefore,
By operating the in/out cylinder 129,
The piston rod 131 moves from side to side in FIG. The piston rod 131 is attached to the mounting plate 133,
Since the bracket 135 is connected to the gripper 117 via the gripper holder 121, the gripper 1
17 is telescopically moved in the left-right direction, that is, in the radial direction in FIG. 4, and the mold is taken in and taken out.

In order to raise and lower the gripper 117, as shown in FIGS. 4, 6 and 7, a vertical cylinder 145 is attached to a ball bush 147, and the ball bush 147 is attached to the guide rail 143. , and guide member 1
49 and is moved up and down. A piston rod 151 of the vertical cylinder 145 is attached to a mounting seat 153 with a bolt 155, as shown in FIGS. 5 and 6. The vertical cylinder 145 is guided by a piston rod 151 and is moved up and down. By moving the vertical cylinder 145 up and down, the vertical cylinder 145 moves to the ball bush 14.
7, the ball bush 147 is guided by the guide member 149 and moves up and down.
The ball bush 147 is connected to the guide rail 143.
As described above, the guide rail 143 guides and supports the gripper 117 so that it can move freely in the radial direction, so that the gripper 117 can be moved up and down.

The drive shaft 115 is connected to an upper support block 159 and a lower support block 161 through a key 157.
It is rotatably supported. The guide member 149 connects the key 1 to the upper support block 159 of the drive shaft 115.
It is supported on support block 165 and lower support block 161 which are in communication via 63. The drive shaft 115 is rotatably supported on the main body frame 169 via a bearing 167. Note that the drive shaft 115 is inserted into the ring member 17 from above the bearing 167 in FIG.
1 and a nut 173 to prevent movement. As shown in FIG. 7, a pinion 175 is secured above the drive shaft 115 by a key 177, and the pinion 175 meshes with a rack 179. Therefore, when the rack 179 is moved by a drive source to be described later, the drive shaft 115 rotates via the pinion 175. When the drive shaft 115 rotates, the gripper 117 is indexed at a predetermined angle via the ball bush 147 or the like.

A drive source 181 is provided to move the rack 179. More specifically, the driving source 181 is the eighth
As shown in the figure and FIG. 9, it consists of a first drive cylinder 183, a second drive cylinder 185, etc. That is, the main body frame 16
A guide rail 187 is fixed to a part of the guide rail 187 by a bolt 189, and a slider member 191 is guided by the guide rail 187 so as to be moved in the direction of the arrow in FIG. Slider member 1
A support block 193 for attaching the second cylinder 185 is placed on the cylinder 91, and a plurality of bolts 19
5, the support block 193 is attached to the slider member 1.
It is fixed at 91. On the back side of the support block 193 and beside the slider member 191, the rack 179 extending in the direction of the arrow in FIG.
It is fixed at On the support block 193 there is a second
Mounting plate 19 for mounting the drive cylinder 185
9 is mounted and attached with a plurality of bolts 201. The first drive cylinder 183 is attached to a support plate 203, which is a part of the punch press, via a mounting plate 205 and a support block 207.

Piston rod 20 of first drive cylinder 183
9 and the piston rod 2 of the second drive cylinder 185
11 by a connecting plate 213. Therefore, when the first drive cylinder 183 is actuated and the piston rod 209 of the first drive cylinder 183 is extended to the right in FIG. The rack 179 also moves to the right at the same time, and via the pinion 175,
The drive shaft 115 rotates 90 degrees. By operating the first drive cylinder 183 and the second drive cylinder 185,
Piston rod 209 of first drive cylinder 183
When the second drive cylinder 185 is retracted to the left and the second drive cylinder 185 is moved to the left, the rack 179 will move in the opposite direction by twice the amount described above. Then, by rotating the pinion 175, the drive shaft 115 is rotated 180 degrees in the opposite direction.

The operation of automatically exchanging molds will be explained using FIG. 10. First, in FIG. The gripper arm 119A is waiting to be taken out from the position 113A, and the other gripper arm 119A is waiting to take out the mold from the punch press after the current process is completed.
When the current process is completed and the mold is replaced, the 10th
As shown in FIG.
45 extends, the gripper arm 11
9A descends and the mold used from the punch press is clamped by operating the opening/closing cylinder 125. The gripper arm 119A is raised by the up-and-down cylinder 145, and the cylinder 12 for moving in and out further
9. Shrink the mold and remove it from the punch press. Next, the first drive cylinder 183 is actuated, the piston rod 209 is extended, the rack 179 is moved, and the drive shaft 115 is rotated 90 degrees clockwise via the pinion 175.
It will look like Figure B. In this state, when the cylinder 129 for moving in and out of the gripper arm 119B and the cylinder 145 for moving up and down are operated in the same manner as described above, the mold for the next process is attached to the punch press, and the mold is moved to the gripper arm by the opening/closing cylinder 125. It is unclamped and removed from 119B. Furthermore, the rod 2 of the first drive cylinder 183
09 is retracted and the second drive cylinder 185 is extended, the movement of the rack 179 causes the pinion 1 to
75, the drive shaft 115 is rotated 180 degrees counterclockwise as shown in FIG. 10C. During this time, the punch press moves to position the workpiece for the next process. In the state shown in FIG. 10C, extend the cylinder 129 for taking in and out of the gripper arm 119A, and move the mold that was just removed from the punch press to the mold exchange position 113A of the mold storage magazine 107.
The mold is stored in the empty storage section 113 located in the gripper arm 11 using the opening/closing cylinder 125.
Unclamp from 9A. In this case, the mold does not pass through the processing section of the punch press, so there is no need to move it above or below the work path line. Therefore, the gripper arm 119A is removed from the vertical cylinder 145.
There is no need to raise and lower it. When the second drive cylinder 185 is retracted, it returns to the state shown in FIG. 10A,
The gripper arm 119B is further equipped with a cylinder 129 for loading and unloading the mold for the next process, and a cylinder 1 for opening and closing.
25, the mold is taken out from the mold exchange position 113A of the mold storage magazine 107 and placed on standby. By repeating this series of operations, the molds can be automatically replaced. As mentioned above, punch 3,
The die 5 is automatically exchanged to process the workpiece W, but only one pair of the punch 3 and die 5 is set for processing the workpiece W.
Since the other punch 3 and die 5 are supported by the rotary table 111, the punch 3 and die 5
The width of the processing position in the X-axis direction can be made extremely narrower than in conventional turret punch presses. That is, by making the width of the caterpillar table 59 extremely narrow, it is possible to suppress vibrations in the vertical direction at the portion where the moving direction changes when the caterpillar table 59 moves vertically from a horizontally moving state or vice versa.
This makes it possible to reduce the occurrence of scratches caused by the vibration of the caterpillar table 59.

[Effects] As can be understood from the above description of the embodiments, the present invention has the punch 3 attached to the ram 7 which is vertically movable above the die 5 supported by a fixed die holder. A carriage base 35 is provided to be movable in the Y-axis direction with respect to the processing position of the workpiece W by the punch 3 and the die 5.
A carriage 47 that is movable in the X-axis direction perpendicular to the Y-axis direction is attached and provided, and is held by a clamp 53 provided on the carriage 47 to move the X-axis and Y-axis.
A workpiece support table 57 that supports the workpiece W that is moved in the axial direction is mounted on the carriage base 3.
An endless caterpillar table 59 is provided integrally on both sides of the die 5 in the X-axis direction, and provided between both the workpiece support tables 57, the width of which is slightly larger than the diameter of the die 5. When the workpiece W is moved in the X-axis direction, the workpiece W rotates on the table 57 and the caterpillar table 59.
A plurality of rollers 63 are provided to support the rollers.

As is clear from the above structure, the present invention relates to a punch press in which a punch 3 is attached to a ram 7 which is vertically movable and provided above a die 5 supported by a fixed die holder. An endless caterpillar table 59 is provided on a workpiece support table 57 that is integrally provided on both sides of a carriage base 35 that is movable in the Y-axis direction with respect to the processing position by means of a workpiece support table 57 and a die 5. The width of the caterpillar table 59 is the width of the die 5.
The diameter of both workpiece support tables 57 and caterpillar table 59 is slightly larger than the diameter of
is provided with a plurality of rollers 63 that rotate and support the workpiece W when the workpiece W moves in the X-axis direction.

Therefore, according to the present invention, the width of the endless caterpillar table 59 is extremely narrow, and vertical vibrations at the portions where the table changes from horizontal movement to vertical movement or vice versa during circulation are suppressed. In addition, the occurrence of scratches on the workpiece W can be suppressed. Also, work W
Since it is supported by the roller 63, unlike a ball, it is in line contact with the workpiece W. Therefore, when the workpiece W is rapidly moved, the rotation of the roller 63 can follow the movement of the workpiece W better, and there is less relative slippage between the roller 63 and the workpiece W, which reduces the occurrence of scratches. It is what it is.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a punch press to which the present invention is applied. FIG. 2 is a view taken along the arrows in FIG. FIG. 3 is an explanatory diagram for explaining the operation of the transport caterpillar table. FIG. 4 is an enlarged plan view of the automatic mold changing device. FIG. 5 is a view taken along the arrows in FIG. 4. FIG. 6 is a sectional view taken along the - line in FIG. 4. FIG. 7 is a sectional view taken along the - line in FIG. 4. FIG. 8 is a plan view showing the driving source of the automatic mold changing device. FIG. 9 is a view taken along the arrows in FIG. FIGS. 10A, B, and C are explanatory diagrams for explaining the operation of automatic die exchange. Explanation of symbols representing main parts of the drawings: 1...Punch press, 3...Punch, 5...Die, 7...Ram, 9...Frame, 11...Lower frame, 1
3... Middle frame, 15... Upper frame, 1
7... Tie rod, 27... Ram drive device, 35
... Carriage base, 39 ... Y-axis motor, 4
3...X-axis motor, 47...carriage, 57...
...Work support table, 59... Caterpillar table, 63, 65... Roller, 67... Transport caterpillar table, 81... Drive motor, 89...
Crankshaft, 91...Connecting rod, 93...Flywheel, 95...Clutch/brake device, 105...Mold automatic exchange device, 107...Mold storage magazine, 115...Drive shaft, 117... Gripper, 119... Gripper arm, 125... Opening/closing cylinder, 129...
Cylinder for entry and exit, 145... Cylinder for up and down, 1
83...first drive cylinder, 185...second drive cylinder.

Claims (1)

[Scope of utility model registration request] A punch 3 is attached to a ram 7 that is movable up and down above a die 5 supported by a fixed die holder, and a workpiece W formed by the punch 3 and die 5 is provided.
A carriage 47 that is movable in the X-axis direction orthogonal to the Y-axis direction is attached to a carriage base 35 that is movable in the Y-axis direction with respect to the processing position. A work support table 57 that supports the work W held by the clamp 53 and moved in the X-axis and Y-axis directions.
are integrally provided on both sides of the carriage base 35 in the X-axis direction, and an endless caterpillar table 5 provided between both the work support tables 57.
The width of the die 9 is slightly larger than the diameter of the die 5, and the workpiece support table 57 and the caterpillar table 59 have a plurality of supports that rotate and support the workpiece W when the workpiece W moves in the X-axis direction. A punch press characterized by being provided with a roller 63.