JP2758037B2 - Die indexing device for turret punch press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a die indexing device for a turret punch press.

(Prior Art) In a turret punch press, a die indexing device is configured such that a punch and a die are rotatably mounted on upper and lower turrets, and the rotatable punch and die are appropriately rotated and indexed to perform punching. Punching with different directions is performed on the same work with a pair of punches and dies.

As described in Japanese Utility Model Laid-Open Publication No. 59-44623, a worm gear is provided on the outer periphery of the mold, and a pair of symmetrical transmission shafts are provided through the turret axis, as shown in Japanese Utility Model Application Laid-Open No. 59-44623. An interlocking configuration is provided between the dies, and the dies are constituted by a servomotor that is a drive source different from the turret.

(Problems to be Solved by the Invention) In such a transmission configuration, a pair of dies are interlocked by a transmission shaft directed to a symmetric position on the turret axis.
In the case of using in more than one mold index form, the transmission shaft intersects at different positions on the turret axis, which complicates the transmission configuration.

An object of the present invention is to provide a die index device for a turret punch press that eliminates such defects, simplifies the transmission mechanism, and maintains highly accurate machining.

[Constitution of the Invention] (Means for Solving the Problems) In order to achieve the object as described above, the present invention arranges a plurality of dies around a turret axis and rotates each of the dies on a punch center. A turret punch press that performs punch press while selecting, a main gear that is driven and rotated around the turret axis by a motor, a mold gear that receives and rotates each mold, and a main gear that indexes each mold. A turret comprising: an intermediate gear for transmitting rotation from the turret to each mold gear; and a turret switching clutch provided on the turret for performing indexing of each mold and for inputting transmission rotation between the main gear and the turret. A die indexing device for a punch press was constructed.

(Operation) The main gear is driven and rotated around the turret shaft by the driving of the motor. When the turret is rotated around the turret axis, by turning on the turret switching clutch, the turret is transmitted and rotated from the rotation of the main gear via this turret switching clutch, and the target mold is selected as the punch center. Positioning index.

When the direction or angle of the mold is indexed, the turret is not rotated by disengaging the turret switching clutch, and the mold gear meshing with the main gear and the intermediate gear is driven by the transmission gear. Then, the mold received by the mold gear is rotated in a target direction, and the posture of the punch press on the punch center is indexed. The work is pressed by the turret punch press die indexed in this manner.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIG. 3 and FIG. 4, the turret punch press
A work gap 5 is formed between the lower body 1 and the upper body 3, and the lower body 1 at the bottom of the work gap 5 receives a work table 7 on which a workpiece W is movably mounted as a workpiece. In addition, a lower turret 9 for punching by being positioned on the upper surface of a work W supported and supplied by the work table 7 is rotatably supported.
The upper body 3 has an upper turret 11 rotatably supported at a position facing the lower turret 1 and a striker 15 for pressing a punch 13 as a mold of the upper turret 11. I have.

In addition, a carriage 19 on which a plurality of clamps 17 for holding one side of the workpiece W transferred and supplied to the upper surface of the work table 7 from above and below is arranged on one side of the machining gap 5, and supports the carriage 19. A carriage base 21 and the like are provided. Further, the carriage base 21 is supported movably in the Y-axis direction along a rail 23 provided on the lower body 1 in the Y-axis direction. The carriage
Numeral 19 is movable with respect to the carriage base 21 in the X-axis direction. The lower turret 9 on the punching center P is controlled while moving the work W clamped by the clamp 17 in the Y-axis direction and the X-axis direction along the work table 7 by the respective power drives of the carriage base 21 and the carriage 19. The punching process is performed between the upper turret 11 and the upper turret 11.

1 and 2, a servomotor M is provided on one side of the fuselage. The servomotor M is connected to the upper and lower sprockets 25 linked to the servomotor M, a pair of upper and lower chains 27, and the like. A sprocket cylinder 31 rotatably provided around an upper turret shaft 29 and a sprocket cylinder 35 rotatably provided around a lower turret shaft 33 are configured to be synchronously driven and rotated. The sprocket cylinders 31 and 35 rotate around the turret shafts 29 and 33 by bearings 41 and 43 around the outer periphery of the shaft cylinders 37 and 39 fitted so as to rotate integrally with the upper turret 11 and the lower turret 9. It is provided freely.
Sprockets 45, 47 are provided at upper and lower ends of the sprocket cylinders 31, 35, and main gears 49, 51 are provided at the other ends.

In the upper turret 11, a number of punches 13 are arranged at a fixed rotation position on a radius centered on the axis of the upper turret shaft 29. A punch receiving cylinder 57 is rotatably provided by a bearing 55 in a punch hole 53 provided in the upper turret 11, and the punch 14 is fitted into and supported by the punch receiving cylinder 57 from above. At the upper end of the punch receiving cylinder 57, a mold gear 59 is integrally provided.
Are interlocked and linked by an intermediate gear 61. 63 is a stripping spring for the punch 13.

A die 65 is disposed on the lower turret 9 so as to face each of the punches 13 of the upper turret 11 in the same phase position. The supporting structure of the die 65 is also substantially the same as the supporting structure of the punch 13.A die receiving cylinder 71 is provided in each die hole 67 so as to be rotatable by a bearing 69. Fit and support. A die gear 73 is integrally provided at the upper end of the die receiving cylinder 71,
The intermediate gear 75 is configured to perform a fitting movement with the intermediate gear 51. The intermediate gear 75 is located on the upper and lower sides of the lower turret 9 and rotates integrally. The intermediate gear 75 meshes with the main gear 51 below the lower turret 9 and meshes with the mold gear 73 above.

The upper and lower turrets 11, 9 have clutch pins 77, 79 electromagnetically protruding and retracting toward the main gears 49, 51 at the same rotational phase position. The turret switching clutches 85 and 87 are engaged by fitting the clutch pins 77 and 70 into the pin holes 81 and 83 thus formed.
Stopper holes 89 and 91 are provided at fixed phase positions on the outer peripheral surface of each of the turrets 11 and 9 so that stopper pins 93 and 95 electromagnetically protruded from the upper body 3 and the lower body 1 are engaged. Thus, the upper turret 11 and the lower turret 9 are selected at fixed positions and stop rotating.

In FIG. 3, the drive control of the servo motor M, the turret switching clutches 85 and 87, and the stopper pin 9
The operation control such as 3,95 is controlled and linked by the numerical controller NC. 97 is a signal line of the servo motor M, and 99 is a power line. Punch press, upper turret
With the punch 13 of 11 and the die 65 of the lower turret 9 aligned with the position of the punching center P below the striker 15, the work W supplied between the punch 13 and the die 65 is
Punching is performed by the striker 15. The rotation transmission of the upper turret 11 and the lower turret 9 for punching is performed by the engagement of the turret switching clutches 85 and 87 under the driving of the servomotor 25 (see FIG. 2). That is, the upper and lower chains 27, sprockets 45 and 47, sprocket cylinders 31 and 35, main gears 49 and 51, and clutch pins 77 and 79 are driven by the servo motor 25.
After that, the upper turret 11 and the lower turret 9 are rotated about the turret shafts 29 and 33 in synchronization with each other. Thus, the target punch 13 and the die 65 are controlled to be aligned with each other on the punching center P and stop.

When determining the direction between the punch 13 and the die 65 located at the punching center P, the stopper pins 93, 95
With the stopper holes 8 of the upper turret 11 and the lower turret 9
9 and 91, the upper and lower turrets 11 and 9 are fixed in position, and the turret switching clutches 85 and 87 are turned off.
The sprocket cylinders 31, 39, which are driven and rotated by the servo motor 25 via the chain 27, etc., rotate around the turret shafts 29, 33 integrally with the main gears 49, 51, and the main gears 49, 51
The mold gears 59 and 73 are rotated via 61 and 75, and the punch 13 integrated with the punch receiving cylinder 59 and the die 65 integrated with the die receiving cylinder 71 are rotated in synchronization. Thus, the direction of the die is selected by the rotation of the upper and lower punches 18 and the die 65, and the index control of the punch press form for the work W is performed.

The gear transmission mechanism such as the main gears 49 and 51, the intermediate gears 49 and 75, and the mold gears 59 and 73 is engaged with each of the punches 13 and the die 13 arranged around the turret shafts 29 and 33. In order to be engaged with each other at positions approaching along the upper and lower turrets 11, 9 with respect to the 65, the mold gear
By setting the gear diameter of each of the punches 13 and 59 and the die 65, the direction can be freely set.
In addition, if the meshing positions of the intermediate gears 49 and 75 are independently adjusted, the origin positions of the punches 13 and the dies 65 can be freely adjusted.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes.

[Effects of the Invention] Since the present invention has the above-described configuration, it has the following technical effects. That is, the rotation of the turret and the directional rotation of a plurality of molds arranged on the turret are switched by the on / off of a turret switching clutch between a turret and a main gear transmitted and rotated around a turret axis. Therefore, the motor is a single motor for transmitting and rotating the main gear, and can selectively perform the turret rotation and the mold rotation. The gear and each mold gear may be meshed and linked by an intermediate gear, and the power transmission path can be simplified by planar gear mesh to maintain high machining accuracy. By adjusting the position independently, it is easy to arbitrarily adjust the origin position of each mold.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a plan view of a turret portion viewed from an arrow I in FIG. 3, and FIG. 2 is a II-II diagram in FIG.
3 is an overall front view of the turret punch press, and FIG. 4 is a plan view in FIG. 9 Lower turret, 11 Upper turret 13 Punch, 27 Chain 29 Upper turret shaft, 33 Lower turret shaft 45 Sprocket, 47 Sprocket 49 Main gear, 51 … Main gear 59 …… Die gear, 61 …… Intermediate gear 65 …… Die, 73 …… Die gear 75 …… Intermediate gear 85 …… Turret switching clutch 87 …… Turret switching clutch M …… Servo motor P… … Punching center W …… Work

Claims (1)

(57) [Claims] 1. A turret punch press in which a plurality of dies are arranged and rotated around a turret axis while each die is selected as a punch center while punching is performed. The turret punch press is driven and rotated around the turret axis by a motor. A main gear, a mold gear that receives and rotates each mold, an intermediate gear that transmits rotation from the main gear to each mold gear to perform indexing of each mold, and a mold gear that is provided on the turret. A turret switching clutch for performing indexing and inputting rotation transmitted between the main gear and the turret, the die indexing apparatus for a turret punch press.