JPH1034254A - Die exchanging device in punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely discharge a residual scrap inside a die or a dropped scrap out of the die and to smoothly exchange the die. SOLUTION: A cylindrical supporting member 113 to support a die holder DH providing a die D is installed on the upper part of a lower die exchanging device 61D installed on a die exchanging device 61, a chute 137 to receive a scrap S dropped when exchanging the die is installed inside this supporting member 113, and an inclining mechanism 133 to incline linking to the up and down movement of the lower die changing device 61D is installed. Therefore, because the scrap S dropped when exchanging the die is mounted on the chute 137 and discharged out from the press by inclining the chute 137, the die exchanging working is executed smoothly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die changing device in a punch press, and more particularly, to a die changing device in a punch press having a mechanism for processing a scrap falling during a die changing operation.

[0002]

2. Description of the Related Art Conventionally, a die changing apparatus in a punch press generally has a configuration shown in FIG.

That is, a punch supporting member 203 supporting a plurality of punches P on a punch press 201 and a plurality of dies D
Are supported rotatably in synchronization with each other. A ram cylinder 207 is provided immediately above the punch P at the punching position, and the ram cylinder 207 operates to press the punch P.
Punching processing is performed on the work in cooperation with the die D.

On the other hand, a mold exchanging device 209 is provided at a position where the punch P and the die D are exchanged. This mold changing device 209 is a punch changer 2 for changing a punch P.
11 and a die changer 213 for exchanging the die D, the punch changer 211 and the die changer 213.
Are provided opposite to each other.

The punch changer 211 has a gripper 217 provided at the lower end of an elevating shaft 215 so as to be freely opened and closed.
A cam follower 219 protrudes from the elevating shaft 215, and the cam follower 219 is engaged with a spiral groove 223 formed in a rotatable rotary screw 221. A driven gear 225 is provided on the rotary screw 221, and a driving gear 227 meshes with the driven gear 225, and the driving gear 227 is integrally mounted on an output shaft of a motor 229.

With the above configuration, when the motor 229 is driven, the rotary screw 221 rotates via the driving gear 227 and the driven gear 225. The rotation of the screw 221 causes the spiral groove 223 to rotate.
The elevating shaft 215 moves up and down via the cam follower 219 engaged with 23.

When replacing the punch holder PH with the punch P mounted on the punch support member 203, the engagement groove 231 formed in the punch holder PH at the replacement position is used.
The gripper 21 provided on the punch changer 211
7 and the punch holder PH is pulled out of the punch support member 203 by the lifting operation of the lifting shaft 215 described above.

On the other hand, a rotatable exchange arm 233 is provided, and a magazine hand 235 is attached to both ends of the exchange arm 233 so as to be openable and closable.

With the above configuration, the punch holder PH having the punch P held at the raised position and held by the gripper 217 is provided.
Is held by the magazine hand 235, the punch holder PH is taken out, and the replacement operation is completed.

The die changer 213 has exactly the same components as the punch changer 211 described above, and the apparatus is reversed. For this reason, the same members are denoted by the same reference numerals and description thereof will be omitted. Further, the magazine hand 235 provided on the exchange arm 233 has the same configuration, and its operation is also the same, so that the description is omitted.

Next, the outer configuration of the die changer 213 will be described in more detail.

Referring to FIGS. 14 and 15, the die D
The support member 237 for supporting the die holder DH is provided when the die holder DH holding the die holder DH is pulled out from the die support member 205 (not shown) and taken out by the gripper 217, or when the die holder DH is inserted into the die support member 205 by the gripper 217. It is provided integrally on the upper surface of the elevating shaft 215. Reference numeral 239 denotes a fixed frame.

As another example of the embodiment, FIG.
The configuration shown in FIG. 17 is employed.
That is, the support member 237 for supporting the die holder DH provided with the die D is integrally provided on the upper surface of the elevating shaft 215, and the inclined surface 241 for scrap discharge is formed on the support member 237.

[0014]

In the above-described conventional die changer 213, as shown in FIGS. 18 and 19, the die holder DH is attached to the die support member 2.
At the time of insertion / removal into / from the die 05, the scrap S left in the die D falls off, and the support member 237 and the die holder DH
Between the die holder DH and the magazine hand 23
There is a problem that the operation of exchanging the die D is hindered by entering the gap with the die 5.

To solve this problem, FIG.
In the type in which the inclined surface 241 is formed on the support member 237 shown in FIG. 17, the scrap S sliding down the inclined surface 241 rides on the adjacent die holder DH and hinders the replacement operation of the die holder DH. There was a problem.

An object of the present invention is to provide a die exchanging apparatus in a punch press for facilitating an exchanging operation of a die by reliably discharging scraps remaining in the die or scraps dropped outside the die. It is in.

[0017]

According to a first aspect of the present invention, there is provided a die changing apparatus for a punch press according to the present invention, wherein a punch and a die mounted on a punch supporting member and a die supporting member, respectively, are provided. As a die changing device in a punch press to be replaced, a cylindrical support member for supporting a die holder having the die is provided above a vertically changeable die changer provided in the die changing device. A shooter for receiving a scrap dropped inside is rotatably provided, and the shooter is provided with a tilting mechanism for tilting in conjunction with the up and down movement of the die changer.

According to a second aspect of the present invention, there is provided a mold exchanging apparatus for a punch press according to the present invention, wherein the tilting mechanism is configured to hold a shooter rotatable with respect to the support member in a horizontal state, and to be fixed to a frame. And a contact member which can be freely attached to and detached from the dog is provided integrally on the back surface of the shooter.

According to a third aspect of the present invention, there is provided a die exchanging apparatus for a punch press according to the present invention, wherein the tilting mechanism comprises: a resilient machine for holding a rotatable chute horizontally with respect to the support member; It is characterized in that a contact member which can be freely contacted and separated on the back surface is fixedly provided on the frame.

According to the above-mentioned mold exchanging device for a punch press according to claims 1 to 3, a support member for supporting a die holder is provided above the die changer, and a tiltable shooter is provided inside the support member. Normally, the shooter is kept horizontal by the ammunition and scraps dropped during mold change are received on the shooter. The chute is tilted by the tilting mechanism following the up and down movement of the die changer, and the scrap is discharged out of the machine.

For this reason, it is possible to prevent the scrap falling during mold replacement from affecting the mold replacement operation and other mechanical operations.

Still further, according to a fourth aspect of the present invention, there is provided a die exchanging apparatus in a punch press according to the present invention, wherein a scraper made of an elastic member is provided on an outer periphery of the support member.

Accordingly, the scrap remaining in the die and falling to the outside of the support member and stopped can be scraped off by the scraper, and the scrap can be more reliably discharged, and the mold changing operation and the mechanical operation can be performed. Can be prevented.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIGS. 6, 7 and 8, the turret punch press 1 has a common base 3, on which a portal-shaped main body frame 5 is erected. The main body frame 5 includes an upper frame 5U having an opening 7 and a lower frame 5D. A disk support 9 which receives a pressing force is provided at a processing position on the lower frame 5D.

The upper frame 5U of the main body frame 5 is provided with a hydraulic cylinder for moving the ram 11 up and down, or a drive unit 13 such as a crank drive or a servo drive. A striker 15 is provided below the ram 11. Further, the ram 11 is guided by a ram guide member 17 attached to the upper frame 5U, and is slidably slid in the Z-axis direction (vertical direction in FIGS. 6 and 7).

With the above configuration, when the driving device 13 is driven, the ram 11 is guided by the ram guide member 17 and
Since it moves in the axial direction, the striker 15 is moved up and down.

A plurality of brackets 19 are attached to the lower frame 5D of the main body frame 5 at appropriate intervals in the Y-axis direction (left and right directions in FIGS. 7 and 8) so as to extend in the Z-axis direction. A support frame 21 is provided on the plurality of brackets 19. A work table 25 is connected to each support frame 21 via a plurality of balls 23.
Is provided movably in the Y-axis direction. The work table 25 has a configuration in which side tables 25S are provided on both sides of a fixed center table 25C.

The work table 25 is provided with a carriage base 29 of the plate moving / positioning device 27. This carriage base 29 has an X-axis direction (FIG. 6).
, A ball screw 31 is rotatably supported and extends in the left-right direction and in FIG. The ball screw 31 is provided with a carriage 33 movable in the X-axis direction via a nut member. Further, the carriage 33 is provided with a plurality of work clamps 35 for cranking the plate material W.

As shown in FIG. 8, an X-axis motor 37 is provided below the carriage base 29, and a drive pulley 39 is mounted on the output shaft of the X-axis motor 37. On the other hand, a driven pulley 41 is mounted on one end of the ball screw 31, and a timing belt 43 is wound around the driven pulley 41 and the driving pulley 39.

When the Y-axis drive motor (not shown) is driven by the above configuration, the side table 25S is moved in the Y-axis direction via the carriage base 29 via the balls 23 supported by the support frame 21. Will be.
When the X-axis drive motor 37 is driven, the carriage 33 is moved in the X-axis direction. Therefore, the plate material W clamped by the work clamp 35 is X,
The plate material W is moved in the Y-axis direction, and the desired position of the plate material W is positioned at a processing position that is a position below the striker 15.

A sub-frame 45 adjacent to the main frame 5 stands on the common base 3. The sub-frame 45 includes an upper frame 45U and a lower frame 45.
It has a C-shaped structure made of D. A rectangular upper turret 49 that is rotatable via an upper rotating shaft 47U, for example, a punch support member, is provided below the upper frame 45U, and a lower rotating shaft 47D is provided above the lower frame 45D. A lower rectangular turret 51, which is a rotatable, for example, die supporting member, is supported.

Punches P are provided on both sides of the upper turret 49.
Are mounted detachably, and on both sides of the lower turret 51, a die holder DH having a die D mounted at a position corresponding to the punch P is detachably mounted. In addition, inside the upper and lower frames 45U and 45D, rotation driving means for rotating the upper and lower rotation shafts 47U and 47D are provided on both left and right sides in FIG.

As shown in FIG. 8, a semicircular auxiliary table 55 having a supporting member 53 such as a brush for supporting the plate material W is provided on a side portion of the lower turret 51. Therefore, the downward forming process can be performed, and the scratches generated on the plate material W when the lower turret 51 rotates can be reduced.

With the above structure, the upper and lower rotating shafts 47U,
By the rotation of 47D, the selected punch P and die D from which the upper and lower turrets 49 and 51 are indexed are positioned at the processing position. Next, the punching process is performed at a desired position of the plate material W in cooperation with the punch P and the die D by the vertical movement of the striker 15.

As described above, the punching process is performed by the operation of the ram 11 which can be moved up and down, and the heat generated by this operation is transmitted from the upper frame 5U to the upper frame 45U of the sub-frame 45. Is released without heat conduction. That is, the upper and lower turrets 49 and 51 are positioned above the subframe 45 and the lower frame 45, respectively.
U, 45D, the thermal displacement occurring in the upper and lower turrets 49, 51 is limited by the upper and lower turrets 4.
The heat generated by the ram 11 can be maintained only by the heat generated by the rotation of the ram 11, and there is no large heat effect such as misalignment caused by the heat generated by the ram 11.

A punch holder magazine 57 supporting a punch P to be attached to and detached from the upper turret 49, and a lower turret adjacent to the upper side of the sub-frame 45 and the left side of the lower frames 45U and 45D in FIG. 51
And a die holder magazine 59 that supports a die D to be detached and replaced. The upper turret 49
As shown in FIG. 6, the punch attachment / detachment exchange position PT is located below the punch holder magazine 57, and the die attachment / detachment exchange position DT of the lower turret 51 is also shown in FIG. In order to be located above the die holder magazine 59,
Lower die changing devices 61U and 61D are arranged in the vertical direction of the punch and die changing positions PT and DT.

The punch and die holder magazines 57 and 5
Reference numerals 9 are arranged to face each other in the vertical direction, and endless chain members 63 and 65 are wound around a driving sprocket 67 and a driven sprocket 69 as shown in FIG. Drive motors 71 and 73 such as servo motors are connected to the drive sprocket 67 in an interlocked manner. A plurality of endless clamp claws 75, 77 for clamping the punch and die holders PH, DH are attached to the chain members 63, 65, respectively.

The upper and lower die changing devices 61U and 61D are provided with chuck claws 79 and 81 for clamping punches, die holders PH and DH at the upper part. The upper and lower die changing devices 61U, 61 are driven by drive motors 83, 85 for changers such as servo motors mounted on the upper and lower frames 45U, 45D of the sub-frame 45.
D is moved up and down.

With the above configuration, while the punching process is performed on the plate material W in cooperation with the punch P and the die D at the processing position, the punch and the die attaching / detaching exchange positions PT, DT
The upper and lower mold changing devices 61U and 61D are connected to the drive motor 83,
85, the upper and lower turrets 49 and 5
The punches and die holders PH and DH mounted on 1 are pulled out with the chuck claws 79 and 81 and mounted on the punch and die holder magazines 57 and 59. Next, the punch and die holders PH and DH are extracted from the clamp claws 75 and 77 of the punch and die holder magazines 57 and 59 by the chuck claws 79 and 81 and are mounted on the upper and lower turrets 49 and 51. By performing this series of operations, the punch / die attaching / detaching exchange positions PT and DT, the punch / die holder magazine 5
7, 59, the upper and lower mold exchanging devices 61U, 61D
The punch and the die holders PH and DH can be directly exchanged by the linear movement in the vertical direction, so that the setup and exchange time can be shortened as compared with the related art. Therefore, it can respond to high-mix low-volume production and flexible automation,
It is also possible to perform unmanned driving.

The punch and die holder magazines 57 and 5
In the exchange position 9, as shown in FIGS. 7 and 8,
An ordinary mold changing device 87 composed of two arms and a tooling tower 89 which are already known are arranged. The mold exchanging device 87 has a clamp claw 9 at the tip of two arms 91.
3 is attached and can rotate 90, 180 degrees.
Since the structure is already known, detailed description is omitted. The tooling tower 89 also has a cylindrical member 95.
A plurality of clamp claws 97 are provided on the outer periphery of the punch, and punches and die holders PH and DH are clamped to the clamp claws 97. The cylindrical member 95 is rotatable and vertically movable. That is, the cylindrical member 95 is moved up and down by the operation of the fluid cylinder 99, and
1 drive pulley 103, timing belt 1
05, it is configured to be rotated via the driven pulley 107. Therefore, the punch and die holder magazine 5
The die and die holders PH and DH are exchanged between the die 7 and the tooling tower 89 by the mold exchanging device 87.

Next, a lower mold exchanging device 61D of the mold exchanging device 61, which is a main part as an example of the embodiment of the present invention, will be described in detail.

FIGS. 1 to 4 show an example of the first embodiment. The configuration of most parts of the example of the embodiment is already known.

First, the lower die changing device 61D shown in FIG.
The schematic structure of the die changer will be described. That is, a die holder D having a die D on a receiving plate 111 integrally formed on the upper part of the elevating shaft 109.
A cylindrical support member 113 for supporting H is integrally provided, and the chuck pawl 81 rotatable around a fulcrum shaft 115 provided on a receiving plate 111 formed on the elevating shaft 109 is provided. It is provided on both sides. Each end of the chuck claw 81 is rotatably engaged with the push rod 117.

On the other hand, a cam follower 119 is provided to protrude from the elevating shaft 109, and this cam follower 119 is provided.
Reference numeral 19 is engaged with a spiral groove 123 formed in the rotary screw 121. The driven screw 12 is connected to the rotary screw 121.
5, the driven gear 125 is engaged with the drive gear 127, and the drive gear 127 is locked by the drive motor 85. Further, a cam follower 129 protrudes near the upper end of the rotary screw 121, and this cam follower 129 is engaged with a cam follower groove 131 formed in the push rod 117.

Further, a bobbin 135 such as a coil spring, which is a member as a tilting mechanism 133 for mounting and discharging the scrap S inside the support member 113, is provided.
Therefore, a shooter 137 which is always kept horizontally is provided.

With the above configuration, the driving screw 85 is rotated via the driving gear 127 and the driven gear 125 by the driving of the driving motor 85, and the rotation of the rotating screw 121 also rotates the spiral groove 123 and engages with the spiral groove 123. The elevating shaft 109 moves up and down via the cam follower 119.
At a predetermined position (the height position of the lower turret 51 or the clamp claw 93 as a die support member), the chuck claw 81
The cam groove 131 of the push rod 117 is formed so as to open the cam follower 129 by the rotation of the rotary screw 121, and the push groove 117 moves up and down by the cam groove 131 to open the chuck claw 81.

Next, the shooter 137 provided with the tilting mechanism 133 will be described in more detail.

Referring to FIG. 1, a shooter 137 is provided in a cylindrical support member 113. More specifically, a bracket 141 that supports, for example, a roller, which is a contact member 139, is provided on the back surface of the shooter 137, and the bracket 141 is attached to the support member 113.
Is rotatably mounted via a pin 143 provided at the bottom. Further, a coil spring as the elastic machine 135 is attached to a spring support shaft 145 provided at an appropriate position of the support member 113 and a spring support shaft 147 provided at an appropriate position of the bracket 141. Reference numeral 149 denotes a dog provided at an appropriate position on the fixed frame 151.

With the above structure, the shooter 137 is normally held in a horizontal state as shown by a solid line in FIG. When the elevating shaft 109 descends, the contact member 139 attached to the bracket 141 provided on the back surface of the shooter 137
Is the dog 1 provided on the frame 151 on the fixed side.
At 49, the shooter 137 is inclined against the pulling force of the bullet 135 and discharges the scrap S placed on the shooter 137 to the outside of the machine.

FIGS. 2 and 3 show a lower die changing device 61.
The external shape (front and side) of the die changer D is shown. Since the configuration has already been described above, only the component code is given and the description is omitted.

With the above-described configuration, the operation of the lower mold exchanging device 61D before taking out the mold is shown in FIG. That is, when the lower mold exchanging device 61D rises and stands by,
The die support member 51 is rotated to position the die support member 51 on the lower mold changing device 61D. The scrap S dropped at the time of positioning falls on a shooter 137 provided in the hollow cylindrical support member 113. Then, the chuck claws 81 are closed, and the elevating shaft 109 is lowered.

Next, a mold removing operation is performed.
This will be described with reference to FIG.

When the die holder DH provided with the die D is lowered to the position of the clamp pawl 77, the elevating shaft 109 stops temporarily to release the chuck pawl 81. At this time, the shooter 137 is still in a horizontal state, and the scrap S dropped during the above-described operation is placed on the shooter 137. Then, when the chuck claws 81 are completely opened, the elevating shaft 109 starts lowering again. At this time, the die holder DH is retained and held by the clamp claws 77.

Further, when the elevating shaft 109 descends,
The roller serving as the contact member 139 provided on the shooter 137 comes into contact with the dog 149 provided on the fixed-side frame 151, and the shooter 137 starts to tilt. When the elevating shaft 109 reaches the lower end, the shooter 137 becomes the maximum inclination, the scrap S on the shooter 137 is dropped to the discharge shooter 153, and the discharge of the scrap S is completed.

By the above-described operation, it is possible to prevent the scrap S falling at the time of mold exchange from interfering with the mold exchange operation and other mechanical operations.

A shooter provided with a tilting mechanism shown in FIG. 9 shows an example of the second embodiment of the present invention.

That is, the shooter 155 is provided with a bracket 157 hanging down from the lower surface thereof.
Is engaged with a fulcrum shaft 159 provided on the support member 113 and is rotatable. A spring support shaft 161 is provided on the other side of the bracket 157,
A coil spring is attached as a spring 165 to the spring support shaft 163 and the spring support shaft 161 provided in the above.

On the other hand, an abutment member 169 provided with a roller 167 which can be freely contacted and separated on the back surface of the shooter 155 is provided upright on the frame 151 on the fixed side.

With the above configuration, the shooter 155 is normally held in a horizontal state by the pulling force of the bullet 165 as shown by the solid line in the drawing of FIG. When the elevating shaft 109 descends, the shooter 155 also tilts while its back surface hits the roller 167 provided on the abutment member 169, and tilts as shown by a two-dot chain line in FIG. The scrap S is discharged outside the machine.

As a result of the above-described configuration, as in the case of the above-described first embodiment, the scrap S falling during the mold replacement causes trouble in the mold replacement operation and other mechanical operations. Can be prevented.

The shooter provided with the tilting mechanism shown in FIGS. 10, 11 and 12 shows an example of the third embodiment of the present invention. In the third embodiment, a scraper is added to the above-described first embodiment, and the same members are denoted by the same reference numerals and description thereof will be omitted.

As shown in FIG. 11, the scraper 171 is formed by implanting, for example, a resin brush 175 as an elastic member on the outer periphery of a ring-shaped metal frame 173. It is configured to be fitted on the outer periphery.

With the above configuration, when the lifting shaft 109 descends, the scrap S riding on the clamp pawl 77 is scraped off by the scraper 171, which further hinders the mold changing operation and other mechanical operations. Can be prevented.

The present invention is not limited to the above-described embodiment of the present invention, but can be embodied in other forms by making appropriate changes. For example, the resin brush 175 provided on the scraper 171 may be formed of rubber or the like.

[0066]

As will be understood from the above description of the embodiment, according to the present invention according to claims 1, 2 and 3, a support member for supporting a die holder is provided on an upper portion of a die changer. A tiltable shooter is provided inside the support member, and the shooter is always kept horizontal by an elastic machine to receive scraps dropped during mold replacement on the shooter. Then, the chute is tilted by the tilting mechanism following the up and down movement of the die changer, and the scrap is discharged out of the machine.

For this reason, it is possible to prevent the scrap falling during the mold replacement from interfering with the mold replacement operation and other mechanical operations.

According to the fourth aspect of the present invention,
A scraper made of an elastic member was provided on the outer periphery of the support member. Therefore, the scrap remaining in the die and falling to the outside of the support member and stopped can be scraped off by the scraper, and the scrap can be more reliably discharged, which hinders the mold changing operation and the machine operation. It can prevent coming.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of the present invention and including a partial cross section of a lower mold supporting device.

FIG. 2 is an explanatory front view showing an outer shape in FIG. 1;

FIG. 3 is an explanatory sectional view showing an outer shape in FIG. 1;

FIG. 4 is a schematic explanatory view showing a drive mechanism of the lower mold exchanging device of the present invention.

FIG. 5 is an operation explanatory view of the present invention.

FIG. 6 is a right side view of a turret punch press provided with a mold exchanging device according to an embodiment of the present invention.

FIG. 7 is a front view of FIG.

FIG. 8 is a plan view of FIG.

FIG. 9 is an explanatory sectional view showing an example of a second embodiment of the present invention and showing a shooter and a tilting mechanism.

FIG. 10 is a front view showing an example of a third embodiment of the present invention and including a partial cross section of a lower mold exchanging apparatus having a scraper.

11 is an explanatory perspective view of the scraper in FIG. 10;

FIG. 12 is an operation explanatory view.

FIG. 13 is an explanatory view showing a conventional example and showing a schematic configuration of a turret punch press and a mold changing apparatus.

FIG. 14 is a front view showing the lower die changing device in FIG.

FIG. 15 is a side view of FIG.

FIG. 16 is a front view of a lower mold exchanging apparatus showing another example of the conventional example.

FIG. 17 is a side view of FIG.

FIG. 18 is an operation explanatory view of a conventional example.

FIG. 19 is an operation explanatory view of a conventional example.

[Explanation of symbols]

 1 Turret Punch Press (Punch Press) 49 Upper Turret (Punch Support Member) 51 Lower Turret (Die Support Member) 61 Die Changer 61D Lower Die Changer (Die Changer) 113 Support Member 133 Tilting Mechanism 135, 165 137, 155 Shooter 139, 169 Contact member 149 Dog 151 Frame 171 Scraper P Punch D Die DH Die holder S Scrap

Claims (4)

[Claims] 1. A die changer in a punch press for exchanging a punch and a die mounted on a punch support member and a die support member, respectively. A cylindrical support member for supporting a die holder provided with the die is provided at an upper part, and a shooter for receiving a scrap dropped inside the support member is provided rotatably, and the shooter interlocks with the vertical movement of the die changer. A die exchanging device in a punch press, comprising a tilting mechanism for tilting by tilting. 2. The tilting mechanism includes a resilient device that holds a chute rotatable with respect to the support member in a horizontal state, and a contact member that can be freely contacted with and separated from a dog fixed to a frame. 2. A die changing device in a punch press according to claim 1, wherein the die changing device is provided integrally with the die. 3. The tilting mechanism is provided with a resilient device that holds a shooter rotatable with respect to the support member in a horizontal state and a contact member that is freely contactable and detachable on a rear surface of the shooter and fixed to a frame. The die exchanging device for a punch press according to claim 1, wherein the die exchanging device is configured as follows. 4. A scraper comprising an elastic member is provided on an outer periphery of said support member.
4. A die changing device in the punch press according to claim 2.