JPH05253621A - Punching machine - Google Patents

Abstract

PURPOSE:To reduce the noise of a punching machine by providing a punch head and a die head which can move freely to both X and Y axes inside back steel plates of the surface and back face of a frame support. CONSTITUTION:A work clamping frame 45 having plural work clamps 49 clamping the periphery of a work W is supported on a frame support 41 so that it is attachable freely. Back steel plates 15, 51 are provided on both front and rear surfaces of this frame support 41 respectively leaving a prescribed interval and in parallel. Further, the punch head 53 and the die head 15 are provided so that they face a work clamp frame 45 inside the back steel plates 15, 51, can move freely in the directions of both X and Y axes and face each other, and a conveyor equipment is provided near one back steel plate 15 having a through hole 17. In this way, a punch press can be manufactured without damaging the work, in a small space and with low noise.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching machine for fixing a work and moving a punch head and a die head.

[0002]

2. Description of the Related Art In a conventional punching machine, a free bear is provided on a bed of a machine body, and a carriage for moving a work in the X-axis direction and a Y-axis direction is provided on one side of the bed. A bridge-shaped frame is provided on the upper part of the bed to fix the punch head, and the die head is fixed to the bed side immediately below the punch head, and the work is set in the X-axis direction between the punch head and the die head. Punching processing was performed by moving and positioning in the Y-axis direction.

However, in the work moving type punching machine described above, the bed needs to be at least four times as large as the work W due to the movement of the work, and therefore the punching machine cannot be downsized.

On the other hand, the movement of the work is limited to only the X-axis direction, and the punch head and the die head are simultaneously moved in the Y-axis direction so that the size of the bed is about twice as large as the work. Has become possible.

[0005]

However, in the above-described movement of the work in the one-axis direction, the length of the punching machine in the X-axis direction is large in the case of the work of a long object,
It cannot be said that the installation area of the punching machine has been completely saved, and there is a problem that the work slides on the free bear and is easily scratched.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a punching machine which does not damage a work and saves space.

[0007]

In order to achieve the above object, a punching machine of the present invention has a work clamp frame having a plurality of work clamps for holding a work, and a work clamp frame to which the work clamp frame can be freely attached. A supporting frame support, back steel plates provided in parallel on the front and back surfaces of the frame support at predetermined intervals, respectively, and facing the work clamp frame inside the back steel plates, in two directions of X axis and Y axis. And a punch head and a die head which are movable and opposed to each other.

In addition, a plurality of through holes are formed in the spine plate on which the die head is mounted, and the punched scrap material is recovered in proximity to the through holes by the punch head and the die head. It is characterized by having a conveyor device.

[0009]

In the punching machine having the above construction, the work is held by the plurality of work clamps provided on the work clamp frame, and the work clamp frame is mounted on the frame support to fix the work. Punching is performed on a predetermined position of the work by a punch head and a die head which are attached to the back steel plate and are movable in the X-axis direction and the Y-axis direction at predetermined intervals on the front and back surfaces of the fixed work.

The reaction force to the punch and the die generated during the punching process can be received by the back steel plate, and the back steel plate to which the die head is attached is provided with a plurality of through holes. The scrap material is easily collected outside the punching machine by the conveyor device provided near the through hole.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

Referring to FIGS. 1 and 3, a punching machine 1 is provided with a box-shaped base 3 in the lower part, and the base 3 has a width substantially equal to the size of the base 3. A conveyor device 5 is provided. The conveyor device 5 includes a driving roller 9 connected to a motor 7 and a driven roller 11, and a belt 13 is wound around the driving roller 9 and the driven roller 11. Moreover, the driven roller 11 is partially projected to the outside of the base 3, and the scrap material placed on the belt 13 is discharged to the outside from the driven roller 11 side by the drive of the motor 7. ing.

A first back steel plate 15 is provided on the upper surface of the base 3 accommodating the conveyor device 5. The first back steel plate 15 is a steel plate having a sufficient thickness, and a plurality of through holes 17 having a predetermined shape are formed vertically and horizontally from the central portion to the peripheral portion. The through hole 17 is an open hole for dropping scrap material 19 generated during punching processing, which will be described later, onto the belt 11 of the conveyor device 5.

A frame-like frame 21 as shown in FIG. 2 is fixed to the upper surface of the first back steel plate 15. The frame-shaped frame 21 is a frame-shaped member having a similar shape smaller than the vertical and horizontal lengths of the first back steel plate 15, and guides provided in parallel to each other on the inner side of the corresponding sides of the frame-shaped frame 21. One rail 23 is provided for each. Ball screws 25, one for each, are arranged in parallel on the outer side of the guide rail 23, and both ends of the ball screw 25 are respectively provided with the bearing member 2.
It is rotatably attached to the first back steel plate 15 via 7A. Bending gears 29A are respectively provided on the respective extended ends of the ball screws 25 on the shafts, and another bending bevel gear 29B combined with these bending bevel gears 29A is the frame body frame. 21 is provided on the connecting shaft 31 provided on the other corresponding side,
A loop is formed so as to form the ball screw 25, the connecting shaft 31, the ball screw 25, and the connecting shaft 31. The connecting shaft 3
1 is a frame-like frame 21 via a bearing member 27B.
The connecting shafts 31 are rotatably attached to the frame-shaped frame 21 so as to have a torsion bar effect.

A driving motor M is connected to one of the ball screws 25 thus formed in a loop shape, and the ball screw 25 arranged at a symmetrical position by the driving of the driving motor M is Both are rotated in the circumferential direction. These ball screws 25 are provided with ball screw nuts, and drive members 33 engaged with the guide rails 23 are attached to both of them, and at the same time, they are moved in the circumferential direction along the guide rails 23.

A spline shaft 35 is mounted on these two driving members 33, and a die head 37 is slidably attached to the spline shaft 35. The die head 37 is provided with a detachable die die on the upper part, and the die die part is formed so as to move up and down by a hydraulic device, and is located below a female hole provided in the center of the die die. Has a through hole, and the scrap material 19 is discharged from the through hole onto the first back steel plate 15.

The die head 37 is provided with another spline shaft 3 which is erected in a direction perpendicular to the spline shaft 35.
9, a drive mechanism provided on the frame-shaped frame 21 is formed on the spline shaft 39 with a phase of 90 °, and the frame-shaped frames 21 are superposed to form the first back steel plate 15 Installed on top. Therefore, the die head 37 is moved in one direction by one spline shaft 35 and is moved in the other direction orthogonal to the other by the other spline shaft 39. The lower end of the die head 37 has the first back plate 15
And a clearance D within the elastic displacement of the two frame-like frames 21 is provided between the two. Therefore, the first back steel plate 15 is configured so that the processing reaction force of the die head 37 does not force the driving mechanism in the two directions.

The die head 37 described above is moved in two directions (X-Y).
The frame support 41 shown in FIG. 1 is provided on the two frame-shaped frames 21 driven in the (direction) direction. The frame support 41 is a frame-shaped member mounted via tie rods 43 standing upright at the four corners of the first back steel plate 15, and a mounting port 47 for inserting and removing a work clamp frame 45 described later in one direction. Is equipped with. The longitudinal direction of the mounting port 47 is large enough to insert and remove one side of the work W, and corresponds to the moving range of the die head 37.

This mounting port 47 is also provided in the frame support 41 on the opposite side, and the work clamp frame 45 is provided.
Can be taken in and out from either side of these two mounting ports 47, and the work clamp frame 45 is supported by the frame support 41 by the two mounting ports 47.

The work clamp frame 45 is shown in FIG.
As shown in FIG. 5, the periphery is formed by a frame member having a size that fits into the mounting port 47, and a plurality of work clamps 49 protruding inward are provided on the inner side surface thereof. The work clamp 49 provided on any two adjacent sides is provided on a bar member (not shown), and this bar member is locked so as to be retractable from the work clamp frame 45, and the work W When mounting, the work W is retracted to facilitate the insertion of the work W. The work W is fixed to the work clamp frame 45 by the work clamp 49.
When pressed against the side, the work clamp 4 on the retractable side
9 is projected from the work clamp frame 45, and grips the second adjacent side of the work W to support the work W at a predetermined position.

Above the frame support 41 described above, a second back steel plate 5 having a predetermined interval defined by a tie rod 43 is provided.
1 is attached and tightened. On the lower surface side of the second back steel plate 51, two frame-shaped frames 21, a ball screw 25, a helical bevel gear 29, a drive member 33, etc. similar to the drive mechanism provided on the first back steel plate 15 described above. The spline shafts 39 provided via the
A punch head 53 is provided at the intersection of 9 points. Like the die head 37, the punch head 53 is also a head portion that vertically moves the punch die portion by hydraulic drive. The work clamp frame supported by the frame support 41 by the punch head 53 and the die head 37. The work W gripped by 45 is punched.

In the punching machine 1 having the above-mentioned structure, first, as shown in FIG.
When the work clamp frame 45 is pulled out from the mounting opening 47 of the work clamp, the work clamp W is held by the work clamp 49, and the work clamp frame 45 is inserted into the frame support 41, the work clamp W is inserted between the punch head 53 and the die head 37. It is supported as shown in 1.

Next, the punch head 53 provided on the second back steel plate 51 and the die head 37 provided on the first back steel plate 15 are simultaneously moved to the same position, and the die head 37 is moved.
When the die die on the side is brought into contact with the back surface of the work W and a punching pressure is applied to the punch head 53 side, the punch die is pressed into the die die and punches the work W. The scrap material 19 generated at this time is dropped downward through the die hole, and the scrap material 19 is
Through the through hole 17 provided in the back steel plate 15 and is discharged onto the belt 11 of the conveyor device 5 provided in the base 3. Then, the belt 11 is moved and discharged to the outside of the machine. The processing reaction force generated during punching is absorbed by the first back steel plate 15 and the second back steel plate 51, and the work can be continued without damaging the drive mechanism.

After the punching work is completed, the work clamp frame 45 is pulled out from the frame support 41, the work W is removed and a new work W is set, and the next punching work can be performed.

As described above, in the punching machine 1 of the present invention, the punch head 53 and the die head 37 are positioned relative to each other, the work W is subjected to predetermined processing, and the scrap material 19 is provided on the first back steel plate 15. Through hole 1
Since it dropped from the position 7 into the base 3 and was recovered by the conveyor device 5 in the base 3, complete scratch-free processing was possible, and noise from hydraulic punches and material movement was drastically reduced, achieving space saving. You can

If the second back steel plate 51 is also provided with the through holes 17 formed in the first back steel plate 15, the punching machine 1 can be mounted on the base 3 in the upside down direction.
Even if the punch head 53 and the die head 37 are reversed, these heads are hydraulically driven, so they can be used in the same way by simply changing the punch die and die die. Can be done to.
Further, the punching machine 1 is erected so as to vertically pull out the work clamp frame 45 and pulled out, and the base 3 is placed on the lower side, so that it can be used as a vertical punching machine.

The present invention is not limited to the above-mentioned embodiments, but by making appropriate changes,
It can also be implemented in other modes.

[0028]

As described above, according to the present invention,
Since the configuration is as described in the claims,
It is possible to provide a punching machine that does not damage the work, saves space, and does not generate noise.

[Brief description of drawings]

FIG. 1 is a front sectional view taken along line I-I in FIG.

FIG. 2 is a plan view of a main part of FIG.

FIG. 3 is an external perspective view of a punching machine showing an embodiment of the present invention.

[Explanation of symbols]

 1 Punching Machine 5 Conveyor Device 15 First Back Steel Plate 17 Through Hole 19 Scrap Material 37 Die Head 41 Frame Support 45 Work Clamp Frame 49 Work Clamp 51 Second Back Steel Plate 53 Punch Head

Claims (2)

[Claims] 1. A work clamp frame having a plurality of work clamps around which a work is gripped, a frame support that supports the work clamp frame so that the work clamp frame can be mounted freely, and the front and back surfaces of the frame support are spaced at predetermined intervals. And a punch head and a die head that are parallel to each other and that face the work clamp frame inside the back steel plates and that are movable in two directions of the X axis and the Y axis and that face each other. Punching machine characterized by. 2. A back steel plate on which the die head is mounted is provided with a plurality of through holes, and the punch head and the die head are provided near the through holes to recover punched scrap material. The punching machine according to claim 1, further comprising a conveyor device.