JP2005125371A - Device for holding tool supporting body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a holding device of a tool supporting body having simple constitution which is a device for applying to the holding of the tool supporting body which is changed and used in a punching press or the like, with which the rotation of the tool supporting body on standby is controlled and also the vertical motion of the tool supporting body caused by vibration is prevented. <P>SOLUTION: This device is a device for holding circular tool supporting bodies 3, 4 on which tools 1, 2 are mountable. This device has the main bodies 16, 17 of holding devices which have a plurality of tool supporting body holding parts 18, placing part 18a which is provided in each tool supporting body holding part 18 of the main bodies 16, 17 of these holding devices and on which the tool supporting bodies 3, 4 are placed and pawl members 24. The pawl member 24 is freely opened and closed and has a pawl part which enters a notched part provided on the outer peripheral part of the tool supporting body 3, 4 in the closed state and has a collar part which is provided above this pawl part and is situated on a prescribed upward surface of the tool supporting body 3, 4 when the pawl part enters a notched part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a tool support holding device that is provided in a punch press or the like and holds a plurality of tool supports on which tools can be mounted for replacement use.

  Conventionally, as a punch press that allows a plurality of tools to be exchanged, a turret type having a tool support as a turret is generally used. However, in the turret punch press, the types and sizes of tools that can be held on the turret are limited, and various processes cannot be performed. Therefore, a cartridge type punch press using the following cartridge as a tool support has been proposed (for example, Patent Document 1). In this method, a plurality of rectangular cartridges on which a plurality of tools are mounted are prepared, and the cartridges are exchanged by putting these cartridges in and out of the punch position on the rail of the linear path.

  However, the cartridge type punch press performs indexing of the tools arranged in the cartridge by the plane movement of the punch driving unit having the ram, so that the moving part is heavy and high speed indexing of the tool is possible. difficult. Some tools perform one-way tool indexing by linear movement of the cartridge, but this also requires linear movement of the entire cartridge, making high-speed indexing difficult.

Therefore, the present applicant has proposed a circular tool support that serves as a cartridge and that is handed over to a press frame by a tool support changer that performs a turning operation (for example, Japanese Patent Application No. 2003-29649). A plurality of tool supports are held in the tool support changer, and the desired tool support is transferred to the press frame. The tool support passed to the press frame is positioned and fixed. The tool support changing device has a plurality of tool support holding parts, and the tool support is fitted and held in each of the tool support holding parts.
JP 2000-351028 A

  In the punch press in which the circular tool support is exchanged, each of the tool supports other than the tool support passed to the press frame is held by a tool support changer. However, the tool support held by the tool support changer may be displaced in the rotational direction or move up and down due to processing vibration such as punching. When the rotational direction shift occurs, the press frame leads to an error in the indexing of the tool after receiving the tool support, and the vertical movement leads to the generation of noise, the inclination of the tool support, and the like. Such a vertical movement can be prevented by providing a dedicated actuator, but the structure is complicated and the cost is increased.

  Although the above description is a case of a tool support changer in a punch press, a similar problem occurs in a machine other than the punch press when a tool support on which the above tool is mounted is used. In addition, the above-described problems occur in a tool support holding device that holds a plurality of tool supports without being limited to having a tool support replacement function.

  An object of the present invention is to provide a tool support holding device capable of restricting rotation when holding a circular tool support with a simple configuration and preventing vertical movement due to vibration. Another object of the present invention is that when the claw member for restricting rotation and vertical movement is removed, the collar for preventing the vertical movement of the claw member can be reliably retracted from the upward surface of the tool support. Is to be.

A tool support holding device according to the present invention is a tool support holding device for holding a tool support capable of mounting a tool, the outer shape of which is circular, and having a plurality of tool support holding portions. Corresponding to at least a part of the outer shape of the main body, a mounting portion provided on each tool support holding portion of the holding device main body for mounting the tool support, and provided around the mounting portion And a claw member provided on each of the tool support holders so as to be openable and closable. The claw member is provided in a closed state with a claw part that enters a notch provided on the outer periphery of the tool support, and a claw part that is provided above the claw part and the claw part has entered the notch part. And a collar portion located above a predetermined upward surface of the support. The tool support holding device is applied to, for example, an exchange device that is mounted on a punch press and replaces the tool support with a press frame.
According to this structure, in each tool support holding | maintenance part of a holding | maintenance apparatus main body, a tool support is mounted on the said mounting part. The position of the tool support placed on the placement portion is restricted by the peripheral wall portion, and the movement in the rotational direction and the vertical direction is restricted by the claw member in this position restricted state. That is, when the claw member is in a closed state and enters the cutout portion of the outer peripheral portion of the tool support, the rotation of the tool support is restricted. Further, in this state, the collar provided on the claw member is located above the upward surface of the tool support, and prevents the tool support from moving up and down. As described above, since the claw member has both functions of restricting rotation and vertical movement, it is unnecessary to provide a dedicated actuator for preventing vertical movement, and the configuration is simplified. In this way, with a simple configuration, it is possible to restrict rotation when holding the tool support and to prevent vertical movement due to vibration.

In this invention, the notch portion of the tool support is provided at two locations in the circumferential direction of the outer periphery of the tool support, and the claw member corresponds to the notch in each tool support holding portion. Two may be provided.
In the case of this configuration, the above-described rotation restriction and vertical movement prevention of the tool support can be made more reliable.

Moreover, in this invention, you may make the said nail | claw part in the said nail | claw member project to the center side of the radial direction of a tool support body rather than the said collar part.
In this configuration, the hook portion can be reliably retracted from above the predetermined upward surface of the tool support in a disengaged state where the claw portion is disengaged from the notch portion of the tool support. Therefore, the tool support can be smoothly detached from the tool support holding part.

A tool support holding device according to the present invention is a tool support holding device for holding a tool support capable of mounting a tool, the outer shape of which is circular, and having a plurality of tool support holding portions. Corresponding to at least a part of the outer shape of the main body, a mounting portion provided on each tool support holding portion of the holding device main body for mounting the tool support, and provided around the mounting portion And a claw member provided in each tool support holding portion so as to be openable and closable. The claw member is a claw that enters a notch provided in the outer periphery of the tool support in a closed state. And a hook portion that is provided above the claw portion and is located above a predetermined upward surface of the tool support in a state where the claw portion enters the notch portion, thereby preventing vertical movement. This eliminates the need for a dedicated actuator and has a simple configuration. Performs rotation restriction when holding the tool carrier, it can be prevented even vertical movement due to vibration.
The notch portions are provided at two locations in the circumferential direction of the outer periphery of the tool support, and each tool support holding portion is provided with two claw members corresponding to the notch portions. Regulation and prevention of vertical movement can be made even more reliable.
When the claw portion of the claw member protrudes to the center side in the radial direction of the tool support from the collar portion, when the claw portion is removed, the collar portion is formed on the upward surface of the tool support body. The tool support can be reliably retracted from above, and the tool support can be smoothly detached.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a punch press provided with the tool support holding devices 8 and 9. In this punch press, the tool supports 3 and 4 on which the tools 1 and 2 can be respectively mounted are supported by the upper and lower tool support installation portions 6 and 7 of the press frame 5 at the press position P to perform punching. is there. The tool support holding devices 8 and 9 are provided as means for holding a plurality of replacement tool supports 3 and 4 installed in the tool support installation units 6 and 7. The press position P is a plane position where the punch driving ram 10 is arranged. In addition to this, the punch press has a plate material feeding means 11.

The tools 1 and 2 include a punch tool 1 serving as an upper mold and a die tool 2 serving as a lower mold. The upper and lower tool supports 3 and 4 are respectively a punch tool support 3 on which the punch tool 1 can be mounted. The die tool support 4 on which the die tool 2 can be mounted. With respect to the punch tool support 3, each punch tool 1 is supported by a spring member (not shown) so that it can be raised and returned.
The upper tool support installation part 6 for installing the tool support 3 on which the punch tool 1 is mounted and the lower tool support installation part 7 for installing the tool support 4 on which the die tool 2 is installed are concentric with each other. It is provided side by side.

  The ram 10 is positioned above the tool supports 3 and 4 installed in the tool support installation units 6 and 7 and drives the punch tool 1 supported by the punch tool support 3 to punch. The ram 10 is supported by a ram lifting guide 14 so as to be movable up and down at a press position P, and is driven up and down by a ram lifting drive device 15. The ram lifting / lowering drive device 15 includes, for example, a servo motor 15a and a motion conversion mechanism 15b that converts the rotation thereof into a reciprocating linear motion. The ram lifting / lowering drive device 15 may be a hydraulic cylinder or the like. The plate material feeding means 11 is a means for moving the plate material W, which is a workpiece, on the table 12 from front to back and left and right. The edge of the plate material W is gripped by the work holder 13 and the workpiece holder 13 moves to move the plate material W. It is supposed to move back and forth and left and right.

  The tool supports 3 and 4 each have a substantially circular planar shape as shown in FIG. 3 as a perspective view as viewed from above and as viewed from below as shown in FIG. The upper and lower tool supports 3 and 4 have tool support portions 3a and 4a for supporting the tools 1 and 2, respectively, and coupling portions 3b and 4b. The tool support portions 3a and 4a are provided on the inner peripheral portions of the tool supports 3 and 4, and coupling portions 3b and 4b are provided around the tool support portions 3a and 4a. Each coupling part 3b, 4b is formed by arranging a plurality of coupling teeth 3ba, 4ba in the circumferential direction on the outer periphery of the tool supports 3, 4. Engaged portions 3c and 4c are provided in the recesses 3bb and 4bb between the adjacent coupling teeth 3ba and the coupling teeth 4ba in the coupling portions 3b and 4b.

On the outer peripheral surfaces of the upper and lower tool supports 3 and 4, notch portions 3d and 4d for preventing rotation are provided. These notches 3d and 4d are provided at a plurality of locations in the circumferential direction, for example, at two locations facing each other in the diameter direction.
As shown in FIG. 3 (A), the notch 3d of the tool support 3 on the punch side is provided at the lower edge of the outer peripheral surface of the tool support 3, and a lateral groove is formed on the upper side of the notch 3d. The part 3e extends from the notch part 3d to both sides in the circumferential direction. The lateral groove 3e is a groove that engages with a means for preventing vertical movement. As shown in FIG. 4A, the tool support 3 has a lower portion 3A having a small diameter portion, and the outer diameter of the lower portion 3A has a smaller step than the upper outer diameter.
As shown in FIG. 3B, the die-side tool support 4 has flanges 4A and 4B at the upper and lower edges on the outer peripheral surface. In other words, the tool support 4 has a circumferential groove 4 </ b> C at the intermediate portion of the vertical width on the outer peripheral surface. The notch 4d of the tool support 4 on the die side is provided on the upper flange 4A.

  As shown in FIG. 2, the upper and lower tool support installation portions 6, 7 include coupling portions 42 a, 43 a that can mesh with the coupling portions 3 b, 4 b in the corresponding tool supports 3, 4, and the pull-in coupling means 36. , 37. The pull-in coupling means 36 and 37 are engaged with the engaged portions 3c and 4c (see FIGS. 3A and 4B), and the corresponding tool supports 3 and 4 are attached to the tool support installation portion 6. , 7 is a means for engaging the coupling portions 3b, 42a, 4b, 43a with each other. By pulling in the meshed state, the tool supports 3 and 4 are coupled to the tool support installation portions 6 and 7.

  The upper and lower tool support installation portions 6 and 7 fix the tool supports 1 and 2 so that they cannot move up and down during punching, and a space S in which the ram 10 moves up and down and a space S through which the slag passes. 'And each holds the outer periphery of the tool supports 3 and 4. Specifically, the tool support installation portions 6 and 7 are cylindrical lifting members 40 and 41, and cylinders supported only on the inner circumferences of the lifting members 40 and 41 through bearings 93 and 94 so as to be freely rotatable. And the tool supports 3 and 4 are held by the rotating members 42 and 43.

  The coupling portion 42 a is provided at the lower end of the upper rotating member 42, and the coupling portion 43 a is provided at the upper end of the lower rotating member 43. The coupling portions 42a and 43a are formed by arranging a plurality of coupling teeth that are concave and convex in the vertical direction and can be meshed with the coupling teeth 4ba of the coupling portions 4b of the corresponding tool supports 3 and 4 in the circumferential direction. It is a thing.

In FIG. 2, the elevating members 40, 41 are supported to the frame body 5 through elevating guide means 44, 45 so as to be raised and lowered. The elevating guide means 44 and 45 include guide protrusions 44 a and 45 a provided on the elevating members 40 and 41, and guide members 44 b and 45 b such as linear motion bearings installed on the frame body 5. The raising / lowering guide means 44 and 45 are provided in the circumferential direction multiple places of the raising / lowering members 40 and 41, for example, four places.
The elevating members 40 and 41 are moved up and down by the elevating mechanisms 22 and 23, respectively. The upper elevating drive mechanism 22 includes a servo motor 89 and drive transmission means 58 for transmitting the drive. The lower lifting mechanism 23 includes a servo motor 69, a cam mechanism 61 that transmits the drive, and a link mechanism 63.

  The lower rotation member 43 is rotated at an arbitrary angle by the rotation mechanism 39. The rotation mechanism 39 has a transmission mechanism including a rotation drive source 83 such as a servo motor and a gear 84 that transmits the rotation to the gear portion 43 b on the outer periphery of the rotation member 43.

  As shown in FIG. 10, the upper rotation member 42 is rotated at an arbitrary angle by a rotation mechanism 38. The rotation mechanism 38 meshes with a rotation drive source 81 such as a motor provided at the upper end portion of the elevating member 40 and a gear portion 42b provided at the upper end of the rotation member 42 to rotate the rotation drive source 81. 42 and a gear 82 that transmits to 42.

  The rotation of the rotation member 42 by the rotation mechanism 38 is selectively transmitted to the ram rotation unit 10 b provided in the ram 10 by another rotation transmission mechanism 85. The ram rotating portion 10b is provided at the lower end of the ram body 10a of the ram 10 so as to be rotatable around the center of the ram, and a striker 10c is provided at an eccentric position on the lower surface. The rotation transmission mechanism 85 includes a plurality of key grooves 86 provided on the inner periphery of the rotating member 42 along the circumferential direction, and a ram rotating portion 10b provided in the key groove 86 so that the key can be freely engaged and disengaged. And a key engaging / disengaging mechanism 87.

In FIG. 1, tool support holding devices 8 and 9 are devices for exchanging the tool supports 3 and 4 with respect to the tool support installation portions 6 and 7, and are tools for punch tools that are positioned concentrically with each other. There is a support holding device 8 and a tool support holding device 9 for a die tool.
The tool support holding devices 8 and 9 have holding device main bodies 16 and 17 whose planar outer shapes are substantially circular, and are provided at a plurality of circumferential positions on the outer peripheral portions of the holding device main bodies 16 and 17. The tool supports 1 and 2 are held by the tool support holder 18.
The holding device main bodies 16 and 17 are supported so as to be horizontally pivotable via support bases 19 and 20 (see FIGS. 10 and 11), and an arbitrary tool support 3 and 4 is brought to the press position P by the indexing mechanism 21. Swirled as follows. The indexing mechanism 21 rotates the upper and lower holding device bodies 16 and 17 through transmission mechanisms 21b and 21b by drive sources 21a and 21a such as servo motors, respectively.

  As shown in FIG. 5A, each tool support holding portion 18 of the holding device main bodies 16 and 17 is provided as a U-shaped notch, and inside the tool support as shown in FIG. 5A. 3 and 4 are fitted, and the fitted tool supports 3 and 4 are supported by the claw members 24 so as to be freely disengaged from the left and right sides. FIG. 5 shows the punch-side holding device main body 16, but the die-side holding device main body 17 has the same configuration as the holding device main body 16 except for matters to be specifically described. A description thereof will be omitted.

  As shown in FIG. 5B, each tool support holding part 18 of the holding device main bodies 16 and 17 is provided with a mounting part 18a on which the tool supports 3 and 4 are placed and around the mounting part 18a. A peripheral wall portion 18b corresponding to the outer shape of the tool supports 3 and 4 and a claw member 24 that can be freely opened and closed are provided. The mounting portion 18 a is a portion along the upper edge of the U-shaped cutout portion of the tool support holding portion 18, and is provided as a stepped surface portion that is recessed from the upper surfaces of the holding device main bodies 16 and 17. The lower surface of the punch-side tool support 3 is placed on the mounting portion 18a, and the lower side of the upper-side flange 4A (see FIG. 4B) of the die-side tool support 4 is placed on the mounting portion 18a. It is done.

The claw members 24 are respectively provided at two opposing positions of the tool support holding portions 18 that are U-shaped cutout portions of the holding device main bodies 16 and 17, and each tool corresponds to the claw member 24 at this location. The notches 3d and 4d of the supports 3 and 4 are provided.
The claw member 24 is closed as follows to prevent the tool supports 3 and 4 from rotating and moving up and down, and when opened, the claw member 24 is released from rotating and blocking and moving up and down. The tool supports 3 and 4 can be transferred to the tool support installation portions 6 and 7 of the press frame 5.

  As shown in FIG. 6, the claw member 24 is supported at the proximal end with respect to the holding device main bodies 16 and 17 so as to be capable of opening and closing around the support shaft 24e. As shown in FIGS. 8 and 9 in an enlarged manner, the claw member 24 includes claw portions 24a that enter the notches 3d and 4d (FIG. 3) on the outer peripheral surfaces of the tool supports 3 and 4 in the closed state. A hook portion provided above the claw portion 24a and positioned slightly above a predetermined upward surface of the tool support 3, 4 with the claw portion 24a entering the notches 3d, 4d as shown in FIG. 24b. The predetermined upward surface mentioned here is the upper surface portion of the tool support 4 for the tool support 4 on the die side, and the upper surface of the lateral groove 3e on the outer periphery of the tool support 3 on the punch side is the above-mentioned It becomes a predetermined upward surface. With respect to the tool support 3 on the punch side, the flange portion 24b of the claw member 24 enters the lateral groove portion 3e (FIG. 3) formed above the notch portion 3d on the outer peripheral surface. Located above the upward surface. The claw portion 24a of the claw member 24 protrudes from the flange portion 24b to the center side in the radial direction of the tool supports 3 and 4. Note that the claw portion 24a and the collar portion 24b in the claw member 24 may be formed integrally by cutting or the like, or may be formed as separate parts and fixed integrally with each other. .

  Thus, the claw portion 24a of the claw member 24 is engaged with the notches 3d and 4d of the tool supports 3 and 4, so that the tool supports 3 and 4 are prevented from rotating, and the flange 24b is used as a tool. By being positioned slightly above the upward surfaces of the supports 3 and 4, the vertical movement of the tool supports 3 and 4 is prevented.

  The claw member 24 is opened and closed by the claw opening / closing interlock mechanisms 25 and 26 (FIGS. 6 and 7). The claw opening / closing interlocking mechanisms 25 and 26 use the lifting / lowering operation of the lifting / lowering members 40 and 41 (FIG. 2) in the tool support installing portions 6 and 7 to change the claw member 24 from the closed state to the open state. It is. The claw member 24 is supported so as to be horizontally rotatable around the support shaft 24e in the vicinity of the mounting portion 18a of the tool support holding portion 18, and a sector gear portion 24c (see FIG. 8).

6 and 7, the claw opening / closing interlock mechanisms 25 and 26 include a horizontally movable claw member closing member 27 that urges the claw member 24 in the closing direction, and an elevating member 40 in the tool support installation portions 6 and 7. , 41 for moving the claw member closing member 27 in a direction in which the claw member 24 opens, and horizontal conversion for converting the lifting / lowering operation of the operation units 28, 29 into the horizontal movement of the claw member closing member 27 The mechanism 30 and 31 are comprised.
The claw member closing member 27 has a rack portion 32a with which the sector gear portion 24c of the claw member 24 meshes with one side portion, and an advancing / retreating rod 32 provided on the advancing / retreating material in the radial direction of the holding device bodies 16, 17; It comprises a spring member 33 that urges the advance / retreat rod 32 so as to protrude toward the outer peripheral side of the holding device main bodies 16 and 17.

As shown in FIG. 6, the horizontal conversion mechanism 30 in the upper tool support holding device 8 is capable of swinging around the support shaft 34a in a vertical plane parallel to the advance / retreat direction of the advance / retreat rod 32. 16 is configured by supporting a substantially inverted L-shaped lever 34 on the outer peripheral portion. One end of the lever 34 is pushed and swung by the operation unit 28 provided on the elevating member 40 when the elevating member 40 is lowered, so that the claw member closing member 27 moves in the direction to open the claw member 24 at the other end. Be made.
As shown in FIG. 7, the horizontal conversion mechanism 31 in the lower tool support exchanging device 9 is capable of swinging around the support shaft 35 a in a vertical plane parallel to the advance / retreat direction of the advance / retreat rod 32. A bar-shaped lever 35 is supported on the outer periphery of the main body 17. When the lower end of the lever 35 is pushed and swung by the operation unit 29 provided on the elevating member 41 when the elevating member 41 is raised, the claw member closing member 27 moves in the direction in which the claw member 24 opens at the upper end. Be made.

  The operation of the above configuration will be described. As shown in FIG. 5A, the holding device bodies 16 and 17 of the upper and lower tool support holding devices 8 and 9, the tool support holders provided at a plurality of positions in the circumferential direction of the holding device bodies 16 and 17 are provided. The part 18 holds tool supports 3 and 4 that support various tools 1 and 2, and is prevented by a claw member 24 in a closed state. That is, as shown in FIGS. 10 and 11, the claw portion of the claw member 24 is formed in the notches 3 d and 4 d provided at two places in the circumferential direction of the tool supports 3 and 4 mounted on the tool support holding portion 18. 24a enters, the tool supports 3 and 4 are supported in a non-rotatable manner, and the flange 24b of the claw member 24 is positioned above a predetermined upward surface of the tool supports 3 and 4, so that the tool support The vertical movement of 3 and 4 is restricted. Specifically, the flange 24b enters the lateral groove 3e (FIG. 4) with respect to the punch tool support 3 and is positioned on the upper surface with respect to the die tool support 4.

  In order to use the desired tool supports 3 and 4, the holding device main bodies 16 and 17 are turned to place the tool support holding part 18 at the press position P. At this time, the lifting member 40 of the punch-side tool support installation portion 6 in FIG. 2 is retracted upward together with the rotating member 42, and the lifting member 41 of the die-side tool support installation portion 7 is retracted downward together with the rotating member 43. Thus, the tool supports 3 and 4 are prevented from obstructing the pivot movement to the press position P.

  When the tool support holding part 18 (FIG. 5) holding the desired tool supports 3 and 4 comes to the press position P, the upper lifting member 40 is lowered and the lower lifting member 41 is lifted. 22 and 23. As the elevating members 40 and 41 are moved up and down, the upper rotating member 42 is lowered and the lower rotating member 43 is raised. As a result, as shown in FIGS. 10 and 11, the coupling portions 42a and 43a of the rotating members 42 and 43 and the coupling portions 3b and 4b of the tool supports 3 and 4 are engaged. In this meshing state of the coupling teeth, the upper and lower retracting coupling means 36, 37 are engaged and engaged with the engaged portions 3c, 4c of the tool supports 3, 4 to move the tool supports 3, 4 up and down. It is fixed to the rotating members 42 and 43 of the tool support installation parts 6 and 7. At this time, since the coupling parts 42a and 43a and the coupling parts 3b and 4b are arranged in the circumferential direction, the tool supports 3 and 4 are accurately positioned.

As the upper and lower elevating members 40 and 41 are moved up and down in the coupling operation, the claw members 24 of the tool support holding unit 18 (FIG. 6B) in the upper and lower holding device main bodies 16 and 17 are moved to the tool supports 3 and 4. Is disengaged.
That is, when the punch-side lifting member 40 is lowered as shown in FIG. 10, the operation portion 28 at its lower end acts on the lever 34 constituting the horizontal conversion mechanism 30 as shown in FIG. Rotate. As a result, the claw member closing member 27 of the claw opening / closing interlock mechanism 25 is pushed back inward in the radial direction of the holding device body 16 against the restoring force of the spring member 33, and the sector gear portion is placed on the rack portion 32 a of the claw member closing member 27. The claw member 24 engaged with the claw 24 is rotated to the open posture (disengagement posture), and the claw portion 24 a of the claw member 24 is disengaged from the notch portion 3 d of the punch tool support 3. Since the claw portion 24a of the claw member 24 protrudes toward the radial center of the tool support 3 from the flange portion 24b, the hook portion 24b is also disengaged from the tool support 3 along with the disengagement of the claw portion 24a. It is surely retracted from the lateral groove 3e to the outer diameter side.
Also with respect to the tool support 4 on the die side, as the elevating member 41 ascends as shown in FIG. 11, the operation portion 29 at the upper end acts on the lever 35 constituting the horizontal conversion mechanism 31 as shown in FIG. The lever 35 is rotated. Accordingly, the claw opening / closing interlock mechanism 26 of the holding device body 17 operates in the same manner, and the claw portion 24a of the claw member 24 is disengaged from the notch portion 4d of the die tool support 4. The flange 24b of the claw member 24 is also securely retracted from the upper surface of the tool support 4 to the outer diameter side.

  After the indexing of the tool supports 3 and 4 is completed in this way, the desired tools 1 and 2 on the tool supports 3 and 4 are indexed and punched.

  According to the tool support holding devices 8 and 9 having this configuration, the freely openable / closable claw members 24 provided in the tool support holding portions 18 of the holding device main bodies 16 and 17 are in the closed state of the tool supports 3 and 4. A claw portion 24a that enters the notches 3d and 4d provided on the outer peripheral portion, and a tool support 3 that is provided above the claw portion 24a and when the claw portion 24a enters the notches 3d and 4d. 4 has a flange 24b positioned on a predetermined upward surface, so that the tool supports 3 and 4 can be held in a non-rotatable manner, and the tool supports 3 and 4 are not supported by vibration during punching. The vertical movement of the holding portion 18 can be reliably controlled, and these functions can be obtained with a simple configuration without using a special actuator.

The notches 3d and 4d of the tool supports 3 and 4 are provided at two places in the circumferential direction of the outer periphery of the tool supports 3 and 4, and clawes corresponding to the notches 3d and 4d at these two places. Since the two members 24 are provided, the above-described rotation restriction and vertical movement prevention of the tool supports 3 and 4 can be further ensured.
Since the claw portion 24a of the claw member 24 protrudes from the flange portion 24b to the center side in the radial direction of the tool support 3, 4, the claw portion 24a is notched 3d, In the disengaged state disengaged from 4d, the flange 24b can be reliably retracted from the predetermined upward surface of the tool support 3 or 4, and the tool support 3 or 4 is detached from the tool support holding part 18. Can be performed smoothly.

It is a fracture side view of a punch press provided with a tool support holding device concerning one embodiment of this invention. It is an enlarged fracture front view of the punch press. (A) is the perspective view which looked at the punch tool support body from the top, (B) is the perspective view which looked at the die tool support body from the top. (A) is the perspective view which looked at the punch tool support body from the downward direction, (B) is the perspective view which looked at the die tool support body from the downward direction. (A) is a top view of the tool support body support state of a tool support body holding device main body, (B) is a top view of the tool support body omission state. (A) is a top view of the interlocking mechanism for opening and closing the claw in the upper tool support holding device, and (B) is a side view of the mechanism. It is a side view of the interlocking mechanism for claw opening and closing in the lower tool support holding device. (A) is a top view of a claw member, (B) is a side view of the claw member. It is explanatory drawing which shows the engagement state to the tool support body of a nail | claw member. It is a fracture | rupture side view which shows the relationship between the tool support body installation part by the side of a punch, and a tool support body holding | maintenance apparatus. It is a fracture | rupture side view which shows the relationship between the tool support body installation part by the side of a die, and a tool support body holding | maintenance apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Punch tool 2 ... Die tool 3 ... Punch tool support body 3d ... Notch part 4 ... Die tool support body 4d ... Notch part 6, 7 ... Tool support body installation part 8, 9 ... Tool support body holding | maintenance apparatus 16, DESCRIPTION OF SYMBOLS 17 ... Holding | maintenance apparatus main body 18 ... Tool support body holding | maintenance part 18a ... Placement part 18b ... Peripheral wall part 24 ... Claw member 24a ... Claw part 24b ... Claw part 40, 41 ... Lifting member 42, 43 ... Rotating member

Claims (3)

A tool support holding device for holding a tool support capable of mounting a tool with a circular outer shape in plan view,
A holding device main body having a plurality of tool support holding portions, a mounting portion provided on each tool support holding portion of the holding device main body for mounting the tool support, and provided around the mounting portion; A peripheral wall portion corresponding to at least a part of the outer shape of the tool support, and a claw member provided on each tool support holding portion so as to be openable and closable. A claw part that enters a notch provided in the hook, and a hook that is provided above the claw part and is located above a predetermined upward surface of the tool support with the claw part entering the notch. A tool support holding device.   The said notch part is provided in the circumferential direction two places of the outer peripheral part of a tool support body, and the said claw member is provided in each tool support body holding | maintenance part corresponding to a notch part. Tool support holding device. 3. The tool support holding device according to claim 1, wherein the claw portion of the claw member protrudes toward a center side in a radial direction of the tool support from the collar portion.

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