JPH0639441A - Metal plate butting device - Google Patents

Abstract

PURPOSE:To provide a metal plate butting device provided with a supporter by which the sagging down of a metal plate inserted in a machine is prevented and which is retreated from the butting part of the metal plate when it is not used in a metal plate working machine. CONSTITUTION:A butting member 47 which is abutted on the butting face of the metal plate is provided freely nearing/parting behind a pair of metallic dies which mutually cooperate in metal plate working, a supporting member 49 preventing the sagging down of the metal plate is provided freely rotating and sliding on the lower part of the butting member 47 and the supporting member 49 is rotated to be retreated toward above or below the butting member 47 or retreated backward on the lower side of the butting member 47 to part from the metallic die.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate material abutting device for setting a plate material processing size in a plate material processing machine such as a press brake.

[0002]

2. Description of the Related Art Conventionally, in a plate material processing machine, for example, for bending a plate material, a plate material abutting device is movably provided behind a processing position where an upper die and a lower die cooperate with each other. The tip of the plate material carried in between the mold and the lower mold is abutted against the plate material abutting device that has been moved to a preset position, and the plate material bending position is aligned with the mold bending position for processing. It was

However, in the plate material abutting device having only the abutment member, when the material of the plate material is thin or the distance from the mold position to the abutment member is long, the tip of the plate material hangs down and the abutment is performed correctly. There were things I couldn't do.

Therefore, a support plate as a supporter is provided at the tip of the abutting member to prevent the mounting plate member from hanging down by a fixing bolt.

[0005]

As described above, by providing the support plate as a supporter at the tip portion of the abutting member, it is possible to prevent the plate material from hanging down, but the tip of the plate material is already in the first position. There is a problem in that the product bent in the primary processing is abutted against the support plate and the bending position in the secondary processing cannot be set.

Of course, it is possible to work with the support plate removed, but there is a problem that a lot of time is spent on the setup time such as removal of the support plate, and workability is impaired.

The present invention has been made in view of the above circumstances. An object of the present invention is to prevent a plate material from hanging down and to provide a plate material having a support plate that can be easily retracted when not needed. It is intended to provide a butting device.

[0008]

In order to achieve the above-mentioned object, a plate abutting device of the present invention is provided behind a pair of metal molds for working plate materials in cooperation with each other, with respect to the metal molds. An abutting member which is provided so as to be able to approach and separate from each other and is brought into contact with the end surface of the plate member inserted between the pair of molds is provided, and the plate member is supported below the abutting member to prevent the plate member from hanging down. A support member is provided, and the support member is provided so as to be retractable from the abutting member.

The support member is rotatably provided on the abutting member and is pivotally retracted from the abutting member.
Alternatively, it is desirable that it be provided slidably with respect to the abutting member and be slid and retracted behind the abutting member.

[0010]

The plate material abutment device having the above structure prevents the plate material from hanging down in front of the abutment member when the support member is needed, and prevents the support above the abutment member when unnecessary. Or it can be swung downwards,
Since it is retracted to the rear of the abutting member, the abutting can be performed regardless of the shape of the plate material.

[0011]

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

In FIG. 9, a plate material processing machine 1 holds a plate material (workpiece W) such as a press brake with a manipulator 3 and inserts it between an upper die 5 and a lower die 7 to perform bending work. When performing the above, a plate material abutting device 9 is provided behind the upper die 5 and the lower die 7 (on the left side in FIG. 9), and the tip end surface of the work W is brought into contact with the plate material abutting device 9. The work W is positioned and bent at a predetermined position.

The manipulator 3 comprises a lower frame 1
1 is movably mounted on a base plate 13 provided on the lower part of the front side of the frame 1, and is moved along the front surface of the lower frame 11 in the X-axis direction (direction orthogonal to the paper surface in FIG. 9). . The manipulator 3 includes an arm member 17 having a gripping device 15 for gripping the work W.
The arm member 17 is vertically moved by the elevating column 19, and is rotated in the Y-axis direction by the fan-shaped portion 21. Further, the arm member 17 is rotated in an arc shape on the elevating column 19, and is operated so as to follow the bending of the work during bending while gripping the work W.

When the work W gripped by the manipulator 3 is inserted between the upper mold 5 and the lower mold 7, the work W is brought into contact with the tip of the work W to position the work W in the Y-axis direction. The device 9 is a bar member installed in the direction parallel to the mold (X-axis direction) at the tip of a rod member 23 provided on the rear side of the lower frame 11 and protruding from, for example, a cylinder (not shown). 25 is movably provided. The bar member 25 is pushed out by the operation of a cylinder, for example, and is brought close to the processing line side of the upper die 5 and the lower die 7. Then, by the reverse operation of the cylinder, it is moved in a direction away from the machining line, and the bending position of the work W can be accurately set on the machining line.

As shown in FIGS. 1 to 5, the plate abutting device 9 has a main body 29 having a dovetail groove 27 that fits into the bar member 25, and a handle 31 provided on the upper portion of the main body 29. The body 29 is rotated by this handle 31.
It is provided with a screw shaft 33 vertically installed inside and a piece member 35 which is screwed to the screw shaft 33 and moves up and down in the main body 29. The piece member 35 is supported by a guide shaft 37, and the handle 3
By rotating 1 the inside of the main body 29 can be moved vertically. A lock member 39 having a slip fit is provided on an upper portion of the screw shaft 33 which is engaged with the main body 29, and the rotation of the screw shaft 33 can be stopped by a lock screw 41.

As shown in FIG. 2, the piece member 35 has two pieces.
A central portion supported by the guide shaft 37 of the book has a block 43 which is convex upward, and the cylinder device 4 is provided inside thereof.
Five are furnished. At the lower end of the cylinder device 45, there is a mounting member 51 for mounting an abutting member 47 and a support member 49, which will be described later, and both sides of the mounting member 51 are supported by the guide shaft 37, so that the cylinder device 45 operates. By opening, the guide shaft 37 is used as a guide to move up and down, and when the screw shaft 33 of the block 43 is rotated, the screw shaft 33 is also moved up and down.

As shown in FIG. 3, an abutting member moving cylinder 53 and a support member moving cylinder 55 are provided on both sides of the piece member 35 having the block 43 on the front side.

As shown in FIG. 1, the abutting member moving cylinder 53 is fixed to a supporting member 57 provided on the upper front side of the mounting member 51, and the abutting member moving cylinder 53 has a piston rod. Below the mounting member 5
1, the abutting member 47 via the pressing member 59 installed in
It is formed so as to press the pressure receiving member 61 provided at the side end of the.

As shown in FIG. 4, the abutting member 47 is a thick plate member having a predetermined width in the X-axis direction and a predetermined length in the Y-axis direction, and has a tip end surface. Is provided with a tip member 63 that abuts on the work W. The side surface of such an abutting member 47 is connected and fixed to the pressure receiving member 61 via a support shaft 61a. As shown in FIG. 1, the pressure receiving member 61 has an inclined surface that is lowered one step and rises to the rear end, and a pressing member 59 provided below the abutting member moving cylinder 53 acts on this inclined surface. It is supposed to do. The upper limit of the pressing member 59 is stopped at a fixed position, and in this fixed position stopped state, the pressure receiving member 61 stops at the fixed position and the abutting member 47 is supported in the horizontal direction. Then, the pressure receiving member 61 rotates the abutting member 47 counterclockwise (upward) in FIG. 1 with the support shaft 65 as a fulcrum by the operation of the abutting member moving cylinder 53. When the operation of the abutting member moving cylinder 53 is released, the abutting member 4
7 is returned to the horizontal position by its own weight.

On the other hand, the support member movable cylinder 5
As shown in FIG. 5, 5 is fixed to a support member 67 which is provided on the upper part of the front side of the mounting member 51 and is used on the side of the abutting member moving cylinder 53. It is formed below the piston rod so as to come into contact with a pressure receiving member 71 provided at a side end portion of the support member 49 via a pressing member 69 provided in the mounting member 51.

As shown in FIG. 4, the support member 49 has a width similar to that of the butting member 47,
It is a plate-shaped member having a longer protruding end and is provided so as to be in close contact with the lower surface side of the abutting member 47. The side surface of such a support member 49 is connected and fixed to the pressure receiving member 71 via a support shaft 71a. As shown in FIG. 5, the pressure-receiving member 71 has an arm-like shape, and as shown in FIG.
7 has a bearing portion that engages with the support shaft 65, and a protruding pressure receiving portion on which the pressing member 69 acts is provided behind the bearing portion.
A stopper member 73 is provided below the pressure receiving member 71 to regulate the upper limit of the pressure receiving member 71. The pressure receiving member 71 is supported by the pressing member 69 by the stopper member 73 in the horizontal direction of the support member 49 and is kept in close contact with the lower surface of the abutting member 47. When the support member moving cylinder 55 is opened, the pressing member 69 is raised and the support member 49 is rotated downward. The support member 49 is supported in the horizontal direction by the operation of the support member moving cylinder 55. The lever 29a at the upper part of FIGS. 1 and 5 is a locking lever for fixing the main body 29 to the bar member 25.

The plate member abutting device 9 described above includes the abutting member moving cylinder 53 and the support member moving cylinder 55.
And the support member 49
The support member 49.
It is also possible to evacuate only one alone. As a result, it becomes possible to deal with the hitting of the work that has conventionally been bent in the primary processing.

FIG. 6 and FIG. 7 show an embodiment of a plate member abutting device 75 for retracting only the support member upward.

This plate member abutting device 75 is the same as that shown in FIG. 5 in that the support member 57 is provided on the mounting member 51 and the support member moving cylinder 55 is fixed. Immediately below the support member moving cylinder 55, there is a pressure receiving portion 77a of a support member 77 rotatably provided on a support shaft 65 provided on the mounting member 51, and a piston of the support member moving cylinder 55 is provided. Rod 7
9 is adapted to press the pressure receiving portion 77a downward. Due to this pressing action, the tip of the support member 77 is pushed upward through the support shaft 65 and retracted. Both sides of the support member 77 are integrated by a support shaft 77b.

At the rear end of the support member 77, there is provided a stopper 81 which comes into contact with the upper surface of the rear end of the support member 77, and when the operation of the support member moving cylinder 55 is released, the support member 77 is moved. Down stopper 8 by its own weight
1 holds the horizontal position. An abutting member 83 is provided above the support member 77.

As shown in FIG. 7, the support member 77 is provided with an insertion opening 85 through which the abutting member 83 is inserted so that the support member 77 can be rotated upward without any hindrance. Is formed in. Further, a kamaboko-shaped projection 87 is provided on the upper surface of the tip of the support member 77, and when the support member 77 receives the work W at the horizontal position, the abutting member 83 and the support member 7 are provided.
The work W is prevented from entering the gap between the work W and the work 7.

In the above embodiment, the abutting member 8
The third side can also be retracted upward by the abutting member moving cylinder 53 already described.

FIG. 8 shows another embodiment in which only the support member is retracted. In this plate material abutting device 89, an abutting member 91 is fixed to the lower end portion of the mounting member 51, a guide rail 93 having a groove portion inside is provided on the lower surface of the abutting member 91, and inside the guide rail 93. A support member 95 is slidably provided on the support member 95, and a mount 97 fixed to the guide rail 93 is provided at the rear end of the support member 95.
A support moving cylinder 99 fixed to the above is provided, and the rod member 101 and the support member 95 are connected to each other.

A plate abutting device 8 having such a structure
9 is capable of retracting the support member 95 into the guide rail 93 by operating the support moving cylinder 99 when the support member is unnecessary. In the case of the plate material abutting device 89, if the bending position of the work W is close to the mold, the guide rail 93 may interfere with the mold. It is advisable to put it at the back.

The present invention is not limited to the above-mentioned embodiment, but by making appropriate changes,
It can also be implemented in other modes. Although the present embodiment has been described with reference to the example used for the press brake, it can also be used for a shearing machine.

[0031]

As described above, according to the present invention,
Since the configuration is as described in the claims,
Since it has a support member that prevents the plate material from hanging down and can be easily retracted when it is not needed, it is expected to improve workability and improve efficiency.

[Brief description of drawings]

FIG. 1 is a sectional view taken along line I-I in FIG. 3, showing a main part of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a front view of a plate material abutting device showing an embodiment of the present invention.

FIG. 4 is a plan view of FIG.

5 is a cross-sectional view taken along the line VV in FIG.

FIG. 6 is a side view of a plate abutting device according to another embodiment of the present invention.

FIG. 7 is a plan view of FIG.

FIG. 8 is a side view of a plate abutting device according to a modification of the present invention.

FIG. 9 is a side view of a plate material processing machine equipped with the plate material abutting device of the present invention.

[Explanation of symbols]

 1 plate material processing machine 5 upper mold 7 lower mold 9 plate material abutting device 47 abutting member 49 support member

Claims (3)

[Claims] 1. An end face of a plate member, which is provided behind a pair of molds that cooperate with each other to process a plate member so as to approach and separate from the molds, and is inserted between the pair of molds. An abutting member to be brought into contact is provided, and a support member that supports the plate material is provided below the abutting member to prevent the plate material from hanging down, and the support member can be retracted from the abutting member. Characteristic plate abutting device. 2. The plate member abutting device according to claim 1, wherein an end of the support member is rotatably provided via a rotary shaft, and is provided so as to be retractable from the abutting member. 3. The plate member abutting device according to claim 1, wherein an upper surface of the support member is slidably provided on the abutting member and is retractable from the abutting member.