JP2008023575A - Punch press - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a punch press, in which a turret equipped with die tools and a striker for die tools are efficiently rotated and the rotations are easily controlled. <P>SOLUTION: The punch press is provided with: an upper turret 3 and a lower turret 4, in which punch tools 1 and die tools 2 are mounted respectively; an upper striker 10c and a lower striker 66, which are independent from each other and push the punch tools 1 in the turret 3 and the die tools 2 in the turret 4 respectively; and an upper striker-rotating mechanism 85 and a lower striker-rotating mechanism 68, which are independent from each other and individually rotate the upper striker 10c and the lower striker 66 in the rotational directions of the turrets 3, 4 respectively. The lower striker-rotating mechanism 68 includes a servomotor 69, a striker support member 65 for supporting the striker 66, and a reduction gear 71, which is formed around the striker support member 65 and reduces the speed of the rotation of the servomotor 69. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is capable of both machining by lowering a punch tool and machining by raising a die tool, and a punch press having a function capable of machining a punch tool and a die tool at an arbitrary angle. About.

  As processing by a punch press, punching is generally performed by lowering a punch tool that is an upper die with respect to a plate material. In addition to this punching process, there is a punch press that can perform a forming process in which a forming tool in a die tool as a lower die is raised with respect to a plate material. In this type of punch press, a plurality of punch tools and die tools are respectively mounted on upper and lower tool supports such as turrets, and a tool to be used is selected according to the type of processing. When the tool support is a turret, a turret rotation mechanism for indexing a desired tool to a press position is provided for each of the upper and lower turrets.

In addition, in order to enable a variety of machining with a limited number of tools, there is a tool that has an index function, that is, a tool that can be rotated around a tool center at an arbitrary rotation angle. (For example, patent document 1). With an index function, a non-circular punch hole such as a rectangle can be formed at an arbitrary angle with one type of punch tool, or a plate material can be bent at an arbitrary angle with one type of die tool for forming. It becomes possible.
JP 2005-125369 A

  In the punch press having the index function, it is necessary that the striker that presses the tool at the time of machining is also rotated around the center of the tool. In the case of Patent Document 1, as a means for rotating a die tool striker, a rotating mechanism of a lower turret equipped with a die tool is used. That is, when the rotating member that rotates the lower turret on the upper end and the support member of the die tool striker are engaged with each other, they are configured to rotate together, and the lower turret is rotated. The turret rotation mechanism is driven in a state where the rotation member and the support member are disengaged.

  As described above, rotating the die tool striker using the rotating mechanism of the lower turret that supports the die tool has an advantage that the structure is simple because only one rotating mechanism is required. Rotation of the lower turret and rotation of the die tool striker are accompanied by the engagement / disengagement operation between the lower turret and the support member of the striker and the change of the positional relationship between the rotation member and the support member. There are problems that it takes time to rotate the striker and the control is complicated.

An object of the present invention is to provide a punch press capable of quickly rotating a turret mounted with a die tool and a die tool striker, improving processing efficiency, and easily controlling it. That is.
Another object of the present invention is to enable slag generated by punching to be easily discharged.
Still another object of the present invention is to compactly arrange a member for rotating a die tool support turret and a support member for a die tool striker.

  The punch press according to the present invention includes an upper and lower turret to which a punch tool and a die tool can be respectively mounted, an upper and lower striker that respectively presses the punch tool and the die tool of the turret, and the upper and lower strikers individually. The lower striker rotation mechanism includes a servo motor, a striker support member that supports the striker, and a servo that is formed around the striker support member. And a reduction gear for reducing the rotation of the motor.

According to this configuration, the lower turret on which the die tool is mounted and the die tool striker are rotated by separate rotating mechanisms. For this reason, it is possible to rapidly rotate the turret mounted with the punch tool and the punch tool striker, and the turret mounted with the die tool and the die tool striker. Moreover, the control is easy.
Furthermore, control is further facilitated by using a servo motor as the drive source of the lower striker rotation mechanism. Further, by providing a reduction gear around the striker support member, the reduction gear can be greatly reduced with a large diameter, and the configuration of the reduction portion can be simplified.

In the present invention, the striker support member may be formed in a cylindrical shape, and the inner space may be a slag fall discharge path generated by punching.
When the inner space of the striker support member formed in a cylindrical shape is used as a drop discharge path for slag generated by punching, the slag can be easily discharged to the outside.

Further, in the present invention, a cylindrical rotating member that rotates by placing a lower turret on the upper end and a turret rotating mechanism that rotates the rotating member, and the striker support member has an inner periphery of the rotating member. In addition, it is preferable that the rotating member be installed concentrically and relatively rotatable.
By arranging the striker support member concentrically and relatively rotatably with respect to the rotation member on the inner periphery of the rotation member, the member for rotating the die tool support turret and the support member for the die tool striker can be compactly arranged. it can.

  The punch press according to the present invention includes an upper and lower turret to which a punch tool and a die tool can be respectively mounted, an upper and lower striker that respectively presses the punch tool and the die tool of the turret, and the upper and lower strikers individually. The lower striker rotation mechanism includes a servo motor, a striker support member that supports the striker, and a servo that is formed around the striker support member. And a reduction gear that decelerates the rotation of the motor, the rotation of the turret with the die tool and the rotation of the striker for the die tool can be performed quickly, the machining efficiency can be improved, and the control thereof Easy.

  When the striker support member is formed in a cylindrical shape and its inner space is a drop discharge path for slag generated by punching, the slag generated by punching can be easily discharged.

  In addition, the rotating member has a cylindrical rotating member that rotates with the lower turret placed on the upper end, and a turret rotating mechanism that rotates the rotating member, and the striker support member rotates on the inner periphery of the rotating member. When installed concentrically and relatively rotatable with respect to the member, the member for rotating the die tool support turret and the support member for the die tool striker can be compactly arranged.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, this punch press has upper and lower turrets 3, 4 on which a punch tool 1 as an upper die and a die tool 2 as a lower die can be respectively mounted at a predetermined press position P of a press frame 5. The plate material W is pressed by being supported by the upper and lower turret installation parts 6 and 7 respectively. The upper and lower turret installation parts 6 and 7 are provided concentrically with each other and arranged vertically. As the pressing process, both of a process performed by lowering the punch tool 1 with respect to the plate material W and a process performed by raising the die tool 2 for forming with respect to the plate material W are possible. The press position P is a plane position where a ram 10 described later is disposed.

  In this punch press, a ram 10 for driving the punch tool 1 supported by the upper turret 3, a plate material feeding means 11 for moving a plate material W, which is a workpiece, on the table 12 from front to back, left and right, and a turret installation portion 6 , 7 and turret exchanging devices 8 and 9 for exchanging the turrets 3 and 4, and various other devices are provided.

The ram 10 is positioned above the upper and lower turrets 3, 4 installed in the turret installation parts 6, 7, is supported so as to be movable up and down at a press position P by a ram lifting guide 14, and is driven up and down by a ram lifting drive device 15. The 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 grips the edge of the plate material W with the work holder 13 and moves the plate material W in the front-rear and left-right directions by the movement of the work holder 13.

The turret exchanging devices 8 and 9 include a turret exchanging device 8 for a punch tool and a turret exchanging device 9 for a die tool, which are concentrically positioned above and below, and a plurality of turrets 3 and 4 are mounted on each.
The turret exchanging devices 8 and 9 have exchanging device main bodies 16 and 17 having a circular planar shape, and are provided at a plurality of locations in the circumferential direction on the outer periphery of the exchanging device main bodies 16 and 17, as shown in FIG. The turrets 3 and 4 are held by the turret holding portion 18 made of the cut-out portions. The turret support 18 holds the turrets 3 and 4 fitted therein detachably by supporting the turrets 3 and 4 with the claw members 24 from both the left and right sides.

  As shown in FIG. 1, the exchange device main bodies 16 and 17 are supported so as to be horizontally swivelable via support bases 19 and 20, and swivel so that arbitrary turrets 3 and 4 come to the press position P by the indexing mechanism 21. Be made. The indexing mechanism 21 drives the upper and lower exchange device main bodies 16 and 17 to rotate by drive sources 21a and 21a such as servo motors via transmission mechanisms 21b and 21b, respectively.

  Each of the turrets 3 and 4 has a substantially circular planar shape as shown in FIG. 4 as a perspective view as viewed from above and as shown in FIG. 5 as a perspective view as viewed from below. The upper and lower turrets 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 turrets 3 and 4, and coupling portions 3b and 4b are provided around the tool support portions 3a and 4a. In addition, with respect to the upper turret 3, each punch tool 1 is supported by a spring member (not shown) so that it can be raised and returned.

  As shown in FIG. 4A, the coupling portion 3 b of the upper turret 3 is formed by arranging a plurality of coupling teeth 3 ba that are uneven in the vertical direction on the outer peripheral edge of the upper turret 3 in the circumferential direction. An engaged portion 3c is provided in a recess 3bb between adjacent coupling teeth 3ba in the coupling portion 3b.

  As shown in FIG. 5B, the coupling portion 4 b of the lower turret 4 is formed by arranging a plurality of coupling teeth 4 ba that are uneven in the vertical direction on the outer peripheral edge of the lower turret 4 in the circumferential direction. An engaged portion 4c is provided in a recess 4bb between adjacent coupling teeth 4ba in the coupling portion 4b.

  The upper and lower turret installation parts 6 and 7 fix the turrets 3 and 4 so that they cannot move up and down during processing, and can engage with the coupling parts 3b and 4b in the corresponding turrets 3 and 4 as shown in FIG. Coupling parts 42a, 43a and pull-in coupling means 36, 37. The pull-in coupling means 36 and 37 are engaged with the engaged portions 3c and 4c, and the corresponding turrets 3 and 4 are pulled into the turret installation portions 6 and 7 so that both coupling portions are engaged with each other. Join with. The configuration of the pull-in coupling means 36 and 37 will be described in detail later.

  Specifically, the turret installation parts 6 and 7 are cylindrical lifting members 40 and 41, and cylindrical members supported on the inner circumference of these lifting members 40 and 41 through bearings 93 and 94 so as to be freely rotatable. Rotating members 42 and 43 are provided, and the rotating members 42 and 43 hold the outer peripheral portions of the turrets 3 and 4 so that they cannot be moved up and down. 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. These coupling portions 42a and 43a are formed by circularly coupling a plurality of coupling teeth 42aa and 43aa which are meshed with the coupling teeth 3ba and 4ba of the corresponding coupling portions 3b and 4b of the corresponding turrets 3 and 4 and which are uneven in the vertical direction. They are formed side by side in the circumferential direction.

As a representative of the pull-in coupling means 36, 37, the configuration of the lower pull-in coupling means 37 will be described. As shown in FIG. 6, the lower pull-in coupling means 37 is provided at the upper end of the rotating member 43 and engages and disengages with the engaged portion 4 c of the lower turret 4, and moves up and down in the rotating member 43. The operation rod 49, the spring member 50, and the disengagement drive source 51 are provided. The operating rod 49 is in the lowered position and closes the engaging claw 48 and is biased toward the lowered position by the spring member 50. The disengagement drive source 51 is a means for pushing up the operating rod 49 to the raised position against the urging force of the spring member 50, and includes a ring body 52 and an actuator 53 for raising drive.
Since the upper pull-in coupling means 36 has the same configuration as the lower pull-in coupling means 37, the description thereof is omitted.

In FIG. 2, the elevating members 40 and 41 are supported so as to be movable up and down via elevating guide means 44 and 45 with respect to the frame main body 5 which is a fixed portion of the press frame 5. The raising / lowering guide means 44, 45 includes guide protrusions 44a, 45a provided on the raising / lowering members 40, 41 and guide members 44b, 45b such as linear motion bearings installed on the frame body 5a. 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 mechanism 22 includes a servo motor 89 and drive transmission means 58 that transmits the drive thereof. The lower elevating mechanism 23 includes a servo motor 69, a cam member 61 that transmits the drive thereof, and a link mechanism 63.

  As shown in FIG. 7, the upper rotating member 42 is rotated at an arbitrary angle by the upper turret rotating mechanism 38. The upper turret 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. The gear 82 is transmitted to the rotating member 42.

  The rotation of the rotation member 42 by the upper turret rotation mechanism 38 is selectively transmitted to the ram rotation unit 10 b provided in the ram 10 by the rotation 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. An inner space S of the cylindrical rotating member 42 is a hoistway of the ram 10. On the lower surface of the ram rotating portion 10b, an upside striker 10c that pushes the punch tool 1 from above during punching is provided at a position that is eccentric from the center of the ram. The other rotation mechanism 85 is an upper striker rotation mechanism that rotates the upper striker 10c in the rotation direction of the upper turret 3, and includes a plurality of key grooves 86 provided on the inner periphery of the rotation member 42 along the circumferential direction, and a ram. A key engagement / disengagement mechanism 87 is provided in the rotating portion 10b to removably engage the key groove 86.

  As shown in FIG. 2, the lower rotation member 43 is rotated at an arbitrary angle by the lower turret rotation mechanism 39. The lower turret rotation mechanism 39 includes a servo motor 83 as a rotation drive source and a transmission mechanism including a gear 84 that transmits the rotation to the gear portion 43 b on the outer periphery of the rotation member 43.

  A cylindrical striker support member 65 shown in FIG. 8 is fitted to the inner periphery of the lower rotation member 43 so as to be rotatable with respect to the rotation member 43. The striker support member 65 is integrally provided with a lower striker 66 that pushes the die tool 2 from below during molding by the die tool 2 at an eccentric position corresponding to the uppass striker 10c. The inner space S ′ of the striker support member 65 serves as a fall discharge path for slag generated by punching. A slag chute 67 for guiding the slag downward is integrally attached to the lower end of the striker support member 65.

  The lower striker 66 is rotated in the rotation direction of the lower turret 3 by a lower striker rotation mechanism 68 different from the lower turret rotation mechanism 39. The lower striker rotating mechanism 68 includes a servo motor 69, a small diameter gear 70 that is rotationally driven by the servo motor 69, a large diameter gear 71 that is formed on the outer periphery of the striker support member 65 and meshes with the small diameter gear 70, and a striker support. It consists of member 65. The rotation is transmitted from the small diameter gear 70 to the large diameter gear 71 at a reduced speed. The large-diameter gear 71 is a reduction gear that reduces the rotation of the servo motor 69. In FIG. 1, the lower turret rotation mechanism 39 and the lower striker rotation mechanism 68 are displayed in an arrangement different from the actual position for easy understanding of the configuration (reference numerals are omitted).

As shown in FIG. 9, the die tool 2 for forming among the die tools 2 has a die lifting / lowering portion 2b that can be lifted / lowered with respect to the die tool main body 2a. And the die tool main body 2a is raised with respect to the die tool main body 2a, so that the forming portion Wa can be formed on the plate material W upward. The die tool 2 for forming shown in FIG. 1 performs bending of the forming process, and has a bending die that becomes the die lifting portion 2b and a clamping die 2c that is fixed to the die tool body 2a.
The punch tool 1 facing the die tool 2 for forming has a sandwiching die 1c, and sandwiches the plate material W between the sandwiching dies 1c and 2c of the punch tool 1 and the die tool 2. The tongue-like plate material piece protruding from the sandwiched portion is bent upward by raising the die lifting / lowering portion 2b.

The operation of the above configuration will be described. As shown in FIG. 3, each turret holding portion 18 provided at a plurality of locations in the circumferential direction of the exchange device main bodies 16 and 17 of the turret exchange devices 8 and 9 has turrets 3 supporting various tools 1 and 2. 4 is held and is prevented from coming off by the claw member 24. In order to use the desired turrets 3 and 4, the exchange device main bodies 16 and 17 are turned and the turret holding portion 18 is positioned at the press position P.
At this time, the elevating member 40 of the upper turret installation unit 6 in FIG. 2 is retracted upward together with the rotating member 42, and the elevating member 41 of the lower turret installation unit 7 is retracted downward together with the rotating member 43, It is possible to prevent the turrets 3 and 4 from obstructing the revolving movement to the press position P. FIG. 6A shows the positional relationship between the lower turret 4, the elevating member 41, and the rotating member 43 at this time.

  When the turret holding portion 18 holding the desired turrets 3 and 4 comes to the press position P, the elevating mechanisms 22 and 23 perform the lowering of the upper elevating member 40 and the lower elevating member 41. 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 FIG. 2, the coupling portions 42a and 43a of the rotating members 42 and 43 and the coupling portions 3b and 4b of the turrets 3 and 4 are engaged. The meshing state of the coupling part 43a of the lower rotating member 43 and the coupling part 4b of the lower turret 4 is shown in detail in FIG.

  In this engaged state, the upper and lower retracting coupling means 36 and 37 engage with the engaged portions 3c and 4c of the turrets 3 and 4 to perform the retraction operation, and the turrets 3 and 4 are connected to the upper and lower turret installation portions 6 and 7 respectively. Coupled to the rotating members 42, 43. At this time, since the coupling portions 3b, 4b, 42a, and 43a in which the coupling teeth are arranged in the circumferential direction mesh with each other, the turrets 3 and 4 are positioned with high accuracy. In this coupled state, the claw members 24 in the upper and lower turret exchanging devices 8 and 9 are opened, and the turrets 3 and 4 are released from support from the turret exchanging devices 8 and 9 and can freely rotate.

  After the indexing of the turrets 3 and 4 is completed in this way, the desired tools 1 and 2 in the turrets 3 and 4 are indexed, and punching or molding is performed. The slag generated by the punching process is discharged to the outside through a drop discharge path composed of the inner space S ′ of the cylindrical striker support member 65 and the slag chute 67. For this reason, the slag can be easily discharged to the outside without separately providing a slag discharging means.

Next, the tool indexing operation will be described based on FIG. FIG. 10 shows only the upper turret 3 and the upper striker 10c, and the lower turret 4 and the lower striker 66 are not shown.
Basically, the position of the upper trimmer 10c of the ram 10 shown in FIG. When the rotary member 42 is turned in a state where the key engagement / disengagement mechanism 87 provided in the ram rotary portion 10b is disengaged from the key groove 86 on the inner periphery of the rotary member 42, the upper turret 3 rotates, and this rotation causes a desired As shown in FIGS. 10B and 10C, the punch tool 1 is indexed to a position where the punch tool 1c can punch. That is, when the rotating member 42 is rotated clockwise by the rotation angle α1, the punch tool 1B of the punch tools 1A, 1B... In FIG. When the rotating member 42 is further rotated clockwise by α2, the punch tool 1C is indexed to the origin position. The lower rotating member 43 can be controlled to rotate independently of the upper rotating member 42, but by rotating in synchronization with the upper rotating member 42, the corresponding die tool 2 is also indexed to the origin position.

In the case of the index mode, that is, in order to process the punch holes in the oblique direction by arranging the desired tools 1 and 2 at a desired rotation angle different from the origin position of the uppass triker 10c, first, as shown in FIG. The rotating member 42 is rotated as described above so that the desired punch tool 1C comes to the origin position of the uppass triker 10c. Thereafter, the key engagement / disengagement mechanism 87 is engaged with the key groove 86, and the rotating member 42 is rotated integrally with the ram rotating portion 10b by a desired rotation angle β1 (FIG. 10D). As a result, the desired punch tool 1C is disposed at the desired rotation angle β1, and the upstriker 10c is positioned at a position facing the punch tool 1. At this time, the lower rotation member 43 is also rotated by the same rotation angle as the upper rotation member 42. As a result, a desired oblique punch hole can be processed.
Similarly, by rotating the lower rotating member 43 and the lower striker 66 and arranging them at a desired rotation angle β1, it is possible to perform molding with the die tool 2 for molding at the desired rotation angle β1.

Further, as shown in FIG. 10A, when the up- striker 10c is at the origin position and the desired punch tool 1A is also at the origin position, the key engagement / disengagement mechanism 87 is engaged with the key groove 86, As shown in FIG. 10 (E), the rotation member 42 is rotated integrally with the ram rotation unit 10b by a desired rotation angle β2, and the lower rotation member 43 is rotated by the same rotation angle as the upper rotation member 42 to obtain a desired rotation angle. The punch tool 1A and the die tool 2 can be arranged at a desired rotation angle β2, and the punch tool 1 can be pushed by the uppass triker 10c for punching.
Similarly, by rotating the lower rotation member 43 and the lower striker 66 by the desired rotation angle β2, the desired punch tool 1A and the die tool 2 for forming are arranged at the desired rotation angle β2, and the lower striker The die tool 2 for forming can be pushed by 66 and can be formed.

  According to the punch press of this configuration, both the upper turret 3 and the upper striker 10c equipped with the punch tool 1 can be rotated at an arbitrary angle, and both the lower turret 4 and the lower striker 66 equipped with the die tool 2 are both optional. Therefore, the desired punch tool 1 or die tool 2 can be arranged at an arbitrary circumferential position for punching or forming. For this reason, various processing is possible with a limited number of tools.

  In addition, the upper turret 3 and the upper striker 10c are rotated by different rotating mechanisms 38 and 85, respectively, and the lower turret 4 and the lower striker 66 are rotated by different rotating mechanisms 39 and 68, respectively. The rotation and rotation of the upper striker 10c, the rotation of the lower turret 4 and the rotation of the lower striker 66 can be performed quickly, and the processing efficiency in the index mode is good. Moreover, the control is easy.

Further, since the drive source of the lower striker rotating mechanism 68 is the servo motor 69, the control is further facilitated. Further, by using a large-diameter gear 71 provided around the striker support member 65 as a reduction gear for the small-diameter gear 70 that is rotationally driven by the servomotor 69, the two gears 70 and 71 can greatly reduce the speed. . For this reason, the structure of a deceleration part can be simplified.
In addition, since the striker support member 65 is disposed on the inner periphery of the cylindrical lower rotation member 43 so as to be concentric and relatively rotatable with respect to the lower rotation member 43, both members 43 and 65 are arranged in a compact manner. be able to.

  In this embodiment, a plurality of upper and lower turrets 3 and 4 are detachably mounted on the turret changing devices 8 and 9, respectively, and the arbitrary turrets 3 and 4 are indexed to the press position P. The turrets 3 and 4 can be applied to a punch press having a configuration in which the turrets 3 and 4 are fixed to the press position P.

It is a fracture side view of the punch press concerning one embodiment of this invention. It is an expanded fracture sectional view of the punch press. It is a top view of the turret support state of a turret exchange apparatus main body. (A) is the perspective view which looked at the upper turret from the upper part, (B) is the perspective view which looked at the lower turret from the upper part. (A) is the perspective view which looked at the upper turret from the lower part, (B) is the perspective view which looked at the lower turret from the lower part. (A), (B) is an expanded sectional view which shows the operation state of a lower turret and a raising / lowering mechanism, respectively. It is sectional drawing which shows an upper turret installation part and a rotation mechanism. It is a perspective view which shows a lower striker and its rotation mechanism. It is a conceptual structure explanatory drawing which shows an example of the shaping | molding die | dye which performs a bending. It is explanatory drawing of punch tool selection operation | movement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Punch tool 2 ... Die tool 3 ... Upper turret 4 ... Lower turret 10 ... Ram 10c ... Uppass striker 38 ... Upper turret rotation mechanism 39 ... Lower turret rotation mechanism 40, 41 ... Lifting member 42, 43 ... Rotation member 65 ... Striker Support member 66 ... Lower striker 67 ... Slag chute (slag fall discharge path)
68 ... Lower striker rotating mechanism 69 ... Servo motor 70 ... Small diameter gear 71 ... Large diameter gear (reduction gear)
85 ... Upper striker rotation mechanism S '... Inner space of striker support member (slag drop discharge path)

Claims (3)

  Upper and lower turrets on which punch tools and die tools can be respectively mounted, upper and lower strikers that respectively press the punch tools and die tools of these turrets, and the upper and lower strikers that rotate individually in the direction of rotation of the turret Independent upper and lower striker rotation mechanisms, the lower striker rotation mechanism is a servo motor, a striker support member that supports the striker, and a deceleration that is formed around the striker support member to decelerate the rotation of the servo motor. Punch press including gears.   The punch press according to claim 1, wherein the striker support member is formed in a cylindrical shape, and an inner space of the striker support member serves as a drop discharge path for slag generated by punching.   It has a cylindrical rotating member that rotates the lower turret on the upper end, and a turret rotating mechanism that rotates the rotating member, and the striker support member is arranged on the inner periphery of the rotating member. The punch press according to claim 1 or 2, wherein the punch press is concentrically and relatively rotatable.

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