KR20120067091A

KR20120067091A - Post of variable length type for clamp of bending apparatus

Info

Publication number: KR20120067091A
Application number: KR1020100128521A
Authority: KR
Inventors: 이명희; 이승호
Original assignee: 김광현
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2012-06-25

Abstract

PURPOSE: A length-adjustable support of a clamp for a bending machine is provided to arrange clamps on a straight line because the position of a moving member installed in the support can be changed in the longitudinal direction of the support. CONSTITUTION: A length-adjustable support of a clamp for a bending machine comprises a main body(51), an adjusting unit(52), and a moving member(53). The main body is installed in a clamp for a bending machine. One end of the adjusting unit is installed in the main body by a shaft and the other end is formed with a threaded rod. The moving member has a threaded hole coupled to the threaded rod of the adjusting unit so that the position of the moving member is changed in a longitudinal direction by the rotation of the screw rod.

Description

Variable length support of clamp for bending device {POST OF VARIABLE LENGTH TYPE FOR CLAMP OF BENDING APPARATUS}

The present invention relates to a clamp for bending apparatus provided with a variable support in the bending apparatus for bending a metal sheet.

1 is a front view schematically showing a conventional metal sheet bending apparatus, Figure 2 is a side view schematically showing an operating state of a conventional metal sheet bending apparatus, Figure 3 is a front view of a clamp for a conventional metal sheet bending apparatus, 4 is a cross-sectional view of the AA line of Figure 3 showing the operating state of the support.

In the conventional metal plate bending apparatus, as shown in Figs. 1 and 2, the lower die 3 having the V grooves 2 formed thereon is provided, and the bending die 4 for bending the iron plate is placed on the sinker 5 at the upper portion thereof. The sinker 5 is fixed by a fixing means such as a bolt, and the sinker 5 is installed to reciprocate in an up / down direction by a moving means such as a hydraulic device.

The bending principle of the iron plate is that when the sinker 5 moves downward while the iron plate P is placed on the lower die 3, the bending die 4 presses the iron plate and the iron plate (b) P) is bent.

At this time, it is necessary to align the position where the iron plate (P) is placed on the lower mold (3). That is, when the iron plate (P) is pushed over the lower mold (3), it is possible to bend the desired position only by adjusting the pushing position correctly, for this purpose, the support 50 is mounted, the support 50 is a clamp housing ( 10, the clamp housing 10 is fixed and installed in the frame (1) installed in the bending device.

The frame 1 is reciprocated in the front / rear direction, that is, the direction in which the iron plate P is pushed in, and the moving distance is automatically adjusted by a control panel provided in the bending device.

The support 50 is preferably moved in the up / down direction so as to suit the characteristics and the environment, such as the thickness of the steel plate (P) or the working position, but until now the height adjustment method of the support 50 is made completely automatic Not only did it lose, but the structure was complicated and there was an unproductive problem.

In addition, the work should be performed in a state in which the support 50 is removed according to the work, but until now, the support 50 has been manually removed and then manually mounted as needed, thereby reducing workability and efficiency. .

Accordingly, the conventional clamp is further improved, as shown in FIGS. 3 and 4, the housing 10 having a fixing groove 11 coupled to the frame 1 at the rear and a vertical guide rod 13 disposed at an inner side thereof. The control unit 20 is installed on the upper side of the guide rod 13 and provided with a lifting hole capable of lifting up and down by injecting / blocking air therein, and fixed to the lower side of the lifting hole and along the guide rod 13. The lifting unit 30 is installed to be capable of lifting and lowering, and the support unit 50 is installed on the lifting unit 30 to be in contact with the iron plate, this structure is the top / bottom of the support for aligning and supporting the iron plate The height can be automatically controlled, the height position can be adjusted in three stages, but the support can be automatically removed when the support is not needed, and the support can be automatically installed again if necessary.

However, the bending device is provided with a plurality of clamps, as shown in Figure 2 if the position of the plurality of clamps are not aligned, the position of the support 50 installed in each clamp is also different to support the iron plate (P) in a straight line It becomes impossible.

Therefore, in the related art, the tip portion of the support 50 is fixed with a bolt or the like so as to be detachable, and the tip portion of the relatively protruding clamp support is cut by a polishing process to align each support 50 in a straight line. The process has the disadvantage of spending a lot of time and money.

The present invention devised to solve the above problems, the bending device for a plurality of clamp supports can be aligned in a straight line with each other to be able to easily and easily adjust the length of the support installed on the clamp of the iron plate bending device The object is to provide a variable length support for the clamp.

The present invention for achieving the above object, the support body 51 is installed in the clamp for the bending device, one end is fixed to the shaft 521 rotatably to the main body 51 and the other end adjustment is formed with a screw rod 522 A sphere 52 and a screw hole 531 that is screwed to the screw rod 522 is provided, characterized in that it comprises a moving member 53 is variable in position in the longitudinal direction by the rotation of the screw rod 522 do.

Preferably, in order to fix the movable member 53 to one side of the main body 51 is characterized in that it further comprises a fastener (54) mounted to be capable of vertically tightening in the longitudinal variable direction of the movable member.

According to the present invention, since the movable member provided on the support can be variably positioned in the longitudinal direction of the support, the movable members can be placed in a straight line by adjusting the positions of the movable members of the plurality of clamps.

Therefore, even if a plurality of clamps are installed, it is possible to constantly support the iron plate, there is no need for a separate grinding operation, there is an advantage that the workability and productivity is improved.

1 is a front view schematically showing a conventional metal sheet bending apparatus.
Figure 2 is a side view schematically showing the operating state of a conventional metal sheet bending apparatus.
Figure 3 is a front view of a clamp for a conventional metal sheet bending apparatus.
4 is a cross-sectional view of the line AA of Figure 3 showing the operating state of the support;
Figure 5 is a perspective view showing the clamp of the bending device is attached to the clamp support according to the present invention.
Figure 6 is an exploded perspective view of the clamp support for the bending device according to the present invention.
7 is an assembled perspective view of the clamp support for the bending device according to the present invention.
8 and 9 are plan views showing the variable length of the clamp support for the bending device according to the present invention.
Figure 10 is a side view showing a variable length of the clamp support for the bending device according to the invention.

Hereinafter, with reference to the accompanying drawings showing a preferred embodiment of the present invention will be described in detail. However, the accompanying embodiments are not intended to limit the present invention because it is an embodiment for aiding the understanding of the present invention, and the description will be apparent to those skilled in the art or to a degree that is easily derived. Detailed description thereof will be omitted.

Prior to the description of the structure and the operating relationship of the present invention, with reference to Figures 3 and 4 will be described first to explain the specific structure and operating relationship of the clamp for the conventional bending device to help the understanding of the present invention.

As shown in FIGS. 3 and 4, the bending device clamp is capable of lifting up and down along the guide rod 13 in which the adjustment unit 20 and the lifting unit 30 are respectively installed in the vertical direction in the housing 10. Is installed.

The support 50 is installed to be rotatable about the hinge 41 in the lifting unit 30 installed in the lower portion of the adjustment unit 20, one side of the support 50 is also the hinge 41 to the axis Rotating rotatable bar 40 is installed, one side of the rotary bar 40 is fixed to the support 50 by the connecting pin 43 while the other side of the rotary bar 40 is in contact with the pin (not shown) have.

The mil pin (not shown) is installed to be elevated by penetrating the inside of the guide tube 31 formed on one side of the elevating unit 30, the upper part of the mil pin in the cylinder 32 installed on the upper portion of the guide tube 31 Indented and fixed.

A fixing groove 11 for installing the housing 10 to the frame 1 of the bending device is installed at the rear of the housing 10, and the housing 10 is fixed to the frame 1 at the upper portion of the housing 10. A fastener 12 is provided for release / release.

In addition, the handle 16 is installed on the housing 10, the handle 16 is configured to rotate the screw rod 15 is screwed through one side of the control unit 20 in the vertical direction. do. Therefore, it is possible to raise / lower the adjusting unit 20 by rotating the handle 16 in the left / right direction. In this case, since the control unit 20 and the lifting unit 30 are connected to each other, when the control unit 20 moves up and down, the lifting unit 30 also moves up / down in conjunction with the control unit 20.

A first through hole 21, a second through hole 22, and a third through hole 23 are formed in the control unit 20, and a fourth through hole (not shown) is formed in the upper portion of the cylinder 32. Since the four through holes are connected to the solenoid valve (not shown) of the control unit, the air pressure is introduced or blocked by the opening / closing operation of the solenoid valve.

First, the operation relationship in which the support 50 rotates the hinge 41 about an axis is demonstrated.

As shown in FIG. 4, the support 50 maintains a horizontal state due to its own weight, and in this state, the end of the support 50 can be aligned with the iron plate.

When it is necessary to lift and remove the support 50, when the air is injected into the cylinder 32 through the fourth through hole, the pin 41 inside the guide tube 31 is lowered so that the hinge 41 of the rotary bar 40 is lowered. Rotate counterclockwise on the drawing, and the support 50 is connected to the rotary bar 40 because the support 50 is arranged in the same hinge 41 as the rotary bar 40 and connected with the connecting pin 43. It is folded up.

On the contrary, in order to return the support 50 to its original position, when the inflow of air into the cylinder 32 is blocked, the support 50 returns to the horizontal state by the weight of the support 50.

Next, by injecting air into the first through hole 21 and the third through hole 22, the support 50 can be moved up and down along the vertical guide rod (13).

That is, when air is injected into the third through hole 23 together with air injection into the first through hole 21, the lifting unit 30 descends, and the support 50 connected thereto is lowered to the lowest position. On the contrary, when the air injection to the first through hole 21 and the third through hole 23 is blocked and air is injected into the second through hole 22, the lifting unit is lifted so that the support 50 connected thereto is moved to the uppermost position. The detailed description thereof will be omitted since it may obscure the subject matter of the present invention.

Since the clamp support 50 of the present invention can be applied irrespective of the general conventional clamp as shown in FIG. 1 including the improved conventional clamp structure as shown in FIGS. 3 and 4 described above, the clamp which is the core of the present invention will be described below. Focusing on the structure that can adjust the support 50 in the longitudinal direction will be described.

5 is a perspective view showing a clamp of the bending device with a clamp support according to the invention, Figure 6 is an exploded perspective view of the clamp support for the bending device according to the invention, Figure 7 is a clamp support for the bending device according to the invention Is an assembled perspective view.

5 to 7, the clamp support of the present invention, the support body 51 provided in the clamp for the bending device, one end is fixed to the shaft 521 rotatably to the main body 51, the other end is A circular adjusting hole 52 having a four-screw 522 and a screw hole 531 screwed to the screw rod 522 are provided, and the movable member having a variable position in the longitudinal direction by rotating the screw rod 522. 53 is made.

The screw rod 522 is formed between the groove 522 of the 'U' shape in the main body 51, the screw hole 531 is formed in the connecting portion 532 is inserted into the groove 522. . In addition, the support extension portion 533 protrudes on both sides of the end of the connecting portion 532, the moving member 53 is a 'T' shape.

On the other hand, preferably one side of the main body 51 may be further provided with a fastener 54 is mounted to be able to tighten vertically in the longitudinal variable direction of the moving member 53 to fix the moving member (53).

More specifically, one side of the fastener 54 is provided with a fastening screw rod 541, and one side of the main body 51 is provided with a fastening hole 513 into which the fastening screw rod 541 is inserted and screwed. The tightening hole 513 is drilled to the groove 522 so that the tip of the tightening screw rod 541 contacts the side surface of the movable member 53 to be tightened.

The following describes the variable operating relationship of the support and the present invention will be further embodied.

8 and 9 are plan views showing the variable length of the clamp support for the bending device according to the invention, Figure 10 is a side view showing a variable length of the clamp support for the bending device according to the present invention.

8 and 10, when the moving member 53 is rotated to the outside of the main body 51 by rotating the fastener 54 in a state where the moving member 53 is coupled to the screw rod 522 of the groove 512, the moving member 53. Tightening force for is released and it is movable.

In this case, as shown in FIGS. 9 and 10, the moving member 53 is changed to an appropriate position by rotating the adjusting mechanism 52, and then, when the tightening hole 54 is moved to the inside of the main body 51, the tightening screw rod 541. Since the end of the tightening side of the connecting portion 532 of the movable member 53, the movable member 53 can be fixed without moving.

Although the above description has been made in connection with the preferred embodiments mentioned above, it will be readily apparent to those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention. It is obvious that all such changes and modifications belong to the appended claims.

50: support
51: support body 512: groove 513: tightening hole
52: adjustment opening 521: shaft 522: screw rod
53: movable member 531: variable length screw hole 532: connecting portion
54: Tightening port 541: Tightening screw rod

Claims

A support body 51 provided on the clamp for the bending device;
One end is rotatably fixed to the shaft 521 to the main body 51 and the other end is the adjusting port 52 is formed with a screw rod 522,
The screw rod 522 is provided with a screw hole 531 that is screwed to the screw rod 522 of the clamping device for clamping device, characterized in that it comprises a moving member 53 is variable in the longitudinal direction by the rotation of the screw rod 522 Variable support.

The method of claim 1,
The screw rod 522 is formed in the groove 522 of the 'U' shape of the main body 51,
The screw hole 531 is formed in the connecting portion 532 inserted into the groove 522,
Support extension part 533 is formed on both sides of the end of the connecting portion 532 movable member 53 is a variable length support of the clamp for the bending device, characterized in that the 'T' shape.

3. The method according to claim 1 or 2,
Clamping device for a bending device characterized in that it further comprises a fastening port 54 is mounted to one side of the main body 51 in the vertically variable direction of the variable length of the movable member to fix the movable member (53) Variable support.

The method of claim 3, wherein
Tightening screw rod 541 is provided on one side of the fastener 54,
The fastening screw rod 541 is inserted into one side of the main body 51 is provided with a fastening hole 513 to be screwed, the tip of the fastening screw rod 541 is able to tighten the movable member 53 The variable length support of the clamp for the bending device, characterized in that.