JP3285916B2 - Work table equipment for plate processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work table device for a plate material processing machine such as a press molding machine, and more particularly to a work table device for a plate material processing machine that supports a processed plate material so as to be movable in one coordinate axis direction. .

[0002]

2. Description of the Related Art In a plate material processing machine such as a press forming machine, a processed plate material is moved in a coordinate axis direction along a work path line by a work carriage or the like with respect to a plate material processing part such as a press processing part using a punch and a die. There is a workpiece-movable type which is configured to perform processing at a predetermined position of a processing plate material by performing the processing.

In this type of plate material processing machine, a work table device is configured to support a processed plate material at a height of a work path line so as to be movable in a coordinate axis direction. In order to prevent interference between the table member and the plate material processing section, all or a part of the work table is formed as a fixed table such as a center table in a turret disk punch press. A work plate is slidably supported by a free bearing or the like on a work table surface extending along the line.

[0004]

The plate material in the work table apparatus as described above is supported by a point support using a free bearing or the like. In this case, the micro joint of the punched product is caught by the free bearing. If this is deviated or if the size of the punched product is small, there is a disadvantage that the punched product falls between the free bearings, thereby lowering the punching size.
Further, when the work plate slides on the free bearing, there is a possibility that the work plate may be scratched, and there is a problem that noise is also generated.

In the case of a fixed table, it is necessary to provide a vertical movement mechanism in the work carriage in order to avoid interference with the work clamping means, the override detecting member and the like.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the work table apparatus of the conventional workpiece moving plate processing machine, and has been developed in such a manner that a microjoint is broken or the processed plate is slid. It is an object of the present invention to provide a work table apparatus for a sheet material processing machine that reliably supports a small-sized punched product without causing damage and that does not generate loud noise.

The present invention has been made in view of the aforementioned problems.
The invention according to claim 1 is movable in the X-axis direction.
Moveable in the Y-axis direction to perform press working on the processed plate material
The work plate is supported on both sides of the upper and lower molds in the X-axis direction.
A plurality of workpiece support belts are provided in parallel in the Y-axis direction,
The above work support belts can be moved in the same direction synchronously
The above work support belts are individually moved up and down
It is a configuration provided at present .

[0008] The invention according to claim 2 is that the processed plate material is one
Workpiece of plate processing machine that is supported to be movable in the coordinate axis direction
In the cable device, it extends along the work path line.
A work table surface and a work support
The work support moves the work plate in synchronization with the movement of the work plate
Work that is configured to move in the same direction and at the same speed
A work support belt , and the work support belt is subdivided in a direction orthogonal to the moving direction of the processing plate material, and the work support portion of the belt located at a position corresponding to the plate processing portion of the plate processing machine is the plate material. It is configured to bypass the processing section.

[0009]

[0010]

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 9 shows an embodiment in which the work table device according to the present invention is applied to a press-type double-sided forming machine. The double-sided forming machine has a frame-shaped work carriage slider 5 which is guided by a linear guide section 3 on a bed member 1 and can reciprocate in the X-axis coordinate direction. The work carriage slider 5 is configured such that a work plate W can be detachably mounted in a frame by a work clamp 7 (see FIG. 1).
L (see FIG. 2), and is engaged with the pinion 11 of the X-axis servomotor 9 by a rack (not shown) provided at the lower bottom, and is reciprocated in the X-axis coordinate direction. It has become so.

A gate frame 13 is attached to the bed member 1 so as to straddle the bed member 1 in the Y-axis coordinate direction. Further, a lower frame 15 (see FIGS. 1 and 2) is provided in the bed member 1 at the same position as the portal frame 13 and extends across the bed member 1 in the Y-axis coordinate direction.

The gate type frame 13 has a linear guide 17
(See FIG. 2), the upper mold carrier member 19 is provided, and the lower frame 15 is provided with a linear guide portion 21 (see FIG. 2).
Accordingly, the lower mold carrier members 23 are attached so as to be able to reciprocate in the Y-axis coordinate direction.

The upper mold carrier member 19 and the lower mold carrier member 23 are vertically aligned and opposed to each other with a work path line PL interposed therebetween. The upper mold carrier member 19 is provided with an upper mold 25 such as a punch (see FIG. 2). The lower mold carrier member 23 exchangeably supports a lower mold 27 (see FIG. 2) such as a die. The upper mold carrier member 19 is not shown, but is not shown.
A pressing mechanism including a ram and the like for pressing the pressure 5 is built in, and the lower mold carrier member 23 moves the lower mold 27 to the raised position where the lower mold 27 is aligned with the height position of the work path line PL and about 30 mm therefrom. A mold vertical movement actuator 29 that moves up and down between a lower position and a lower position is incorporated.

A Y-axis servo motor 3 is
1 is attached. The Y-axis servo motor 31 is synchronously connected to an upper ball screw 35 (see FIG. 2) and a lower ball screw 37 (see FIG. 2) by a belt-type synchronous drive device 33, and the upper mold carrier member 19 and the lower mold are connected. The carrier member 23 and the carrier member 23 are synchronously reciprocated in the Y-axis coordinate direction.

The upper mold 25 in the upper mold carrier member 19 and the lower mold 27 in the lower mold carrier member 23 are each rotatable about a vertical center axis, and are formed by a portal frame. Each of the index motors 13 is indexed and driven to rotate by an index motor 39, and the rotation attitude is variably set.

A mold stocker 41 is provided on one side of the bed member 1. The upper mold 25 and the lower mold 27 stored in the mold stocker 41 are automatically replaced by a mold (not shown). The device automatically replaceably mounts the upper mold carrier member 19 and the lower mold carrier member 23 with each other.

1 to 3 show a main part of a work table apparatus according to the present invention. This worktable device is
It has a number of work support belts 43 that are subdivided in a direction orthogonal to the moving direction (X-axis coordinate direction) of the work plate material W by the work carriage slider 5 (X-axis coordinate direction), that is, arranged in the bed member 1 in the Y-axis coordinate direction. ing. In other words, the plurality of work support belts 43 are arranged parallel to each other at a predetermined interval in the Y-axis coordinate direction.

Each of the work support belts 43 is formed of a flexible band made of rubber or the like having a predetermined width to form an endless shape, and eight pulleys 45, 47, 49, 51, 53, 5
It is stretched between 5, 57 and 59 so as to be able to make a round trip.

Pulleys 45, 5 of each work support belt 43
9 and pulleys 55 and 57 are movable pulley support members 65 and 67 respectively arranged on both sides of the lower frame 15 by guide members 61 and 63 so as to be individually movable in the X-axis coordinate direction.
, And the pulleys 47 and 49 and the pulleys 53 and 51 are disposed vertically at both ends of the bed member 1 in the X-axis coordinate direction.

Each of the work support belts 43 extends horizontally between the pulleys 45 and 47 and between the pulleys 55 and 53 along the work path line PL in the X-axis coordinate direction. The work table surface is movable in the axial coordinate direction. Here, a region between the pulleys 45 and 47 of the work support belt 43 is referred to as a front-side work support portion 43f, and a region between the pulleys 55 and 53 is referred to as a rear-side work support portion 43r.

The movable pulley supporting members 65 and 67 are individually provided for each work supporting belt 43 similarly to the above-described pulleys. Servo motors 69 and 71 are mounted on the movable pulley supporting members 65 and 67, respectively. Have been. Ball screws 73 and 75 extending in the X-axis coordinate direction are attached to the servo motors 69 and 71, respectively.
Numerals 3 and 75 are screwed with nut members 77 and 79 fixed to the guide members 61 and 63, respectively.

As a result, the movable pulley support members 65, 67
Move individually in the X-axis coordinate direction, and pulleys 45, 55
Is changed in the X-axis coordinate direction. By changing the positions of the pulleys 45 and 55 in the X-axis coordinate direction, the length of each of the front-side work support portion 43f and the rear-side work support portion 43r in the X-axis coordinate direction changes.

The movement of the movable pulley support members 65 and 67 in the X-axis coordinate direction by the servomotors 69 and 71 causes interference with the lower mold carrier member 23 in accordance with the movement of the lower mold carrier member 23 in the Y-axis coordinate direction. As a result, the pulleys 45 and 55 of the work support belt 43 at positions corresponding to the lower mold carrier member 23 move the lower mold carrier member 23 in the X-axis coordinate, as shown in FIG. The pulleys 45 and 55 of the work support belt 43 which are located near both sides of the work support belt 43 and do not correspond to the lower mold carrier member 23 as shown in FIG. The carrier members 23 are located at positions close to each other without sandwiching them.

There is a gap G between the pulleys 45 and 55 where the work support belt 43 does not exist. As shown in FIG. 1, the gaps G are alternately zigzag to different positions in the X-axis coordinate direction on the adjacent work support belts 43 in order to prevent the work plate W from dropping into the gaps G. It is considered that the gap G of each work supporting belt 43 does not continue in a straight line in the Y-axis coordinate direction.

The movable pulley supporting members 65 and 67 as described above
The work support belt 43 moves the pulleys 45, 59, 57,
55 and extends underneath the lower mold carrier member 23.

Guide members 61 and 63 and pulleys 47 and 53
Are vertical hydraulic fluid cylinder units 81, 83, 85, 8 respectively.
7 and are driven up and down by these fluid pressure cylinder devices. The guide members 61 and 63
The front work support 43f and the rear work support 43r of each work support belt 43 are individually raised by the vertical drive of the pulleys 47 and 53, respectively, to a position aligned with the pass line PL and about 30 mm below. It will move up and down while maintaining a horizontal state between it and the descent position.

Each pulley 49 is connected to a belt tension maintaining fluid pressure cylinder device 89 so as to be displaceable in the X-axis direction. The pulley 49 is displaced in the X-axis direction by the belt tension maintaining fluid pressure cylinder device 89. The tension of each work support belt 43 is maintained at a predetermined constant value regardless of the movement of the pulleys 45, 47, 53, 55, 57.

Each work supporting belt 43 is uniformly connected to the work carriage slider 5 by a connecting portion 91 so as to be vertically displaceable, and the pulleys 45 and 47 follow the movement of the work carriage slider 5 in the X-axis coordinate direction. 49, 51, 5
The vehicle travels in a circle between 3, 55, 57 and 59. As a result, the front work support 43f and the rear work support 43r of each work support belt 43 move at the same speed in the same direction in synchronization with the movement of the work carriage slider 5 in the X-axis coordinate direction. Become.

Next, the operation of the double-sided forming machine equipped with the work table device having the above-described configuration will be described. Work plate W is clamped by work clamp 7,
The work plate W is set on the work carriage slider 5. As a result, the processed plate material W is connected to the work carriage slider 5, and each of the work support belts 43 in the raised position is moved.
Are in planar contact with the front-side work support portion 43f and the rear-side work support portion 43r, and are placed on the front-side work support portion 43f and the rear-side work support portion 43r so as to be aligned with the work path line PL. Horizontally supported in position.

When the work carriage slider 5 is moved by the X-axis servo motor 9 in the X-axis coordinate direction, the work plate W is moved in the X-axis coordinate direction along the work path line PL.
When the upper mold carrier member 19 and the lower mold carrier member 23 are moved in the Y-axis coordinate direction by the axis servomotor 31,
The upper mold 25 of the upper mold carrier member 19 and the lower mold 27 of the lower mold carrier member 23 move in the direction of the Y-axis coordinate, and the upper mold 25 and the lower mold 2
7, a forming process such as a punching process is performed.

When the work carriage W is moved in the X-axis coordinate direction by the work carriage slider 5, each work support belt 43 is moved by the pulleys 45, 47, 49, 51 following the movement of the work carriage slider 5 in the X-axis coordinate direction. , 53, 5
5, 57 and 59, the front work support portion 43f and the rear work support portion 43r of each work support belt 43 are respectively connected to the work carriage slider 5.
The workpiece W moves in the same direction at the same speed in synchronization with the movement of the workpiece W in the X-axis coordinate direction.

As a result, when the work plate W moves in the X-axis coordinate direction, the work plate W and the front side work support portion 4 of the work support belt 43 that supports the work plate are supported.
There is no relative displacement between 3f and the rear work support 43r, that is, when the work plate W moves in the X-axis coordinate direction, the work table surface (the front work support 43f and the rear work support 43r) is moved. On the other hand, no slippage occurs, and scratches on the processed plate material W are avoided.

When the work plate W is moved in the X-axis coordinate direction, the lower mold 27 of the lower mold carrier member 23 is lowered by the mold vertical actuator 29 to a position below the work path line PL. It is also possible to prevent the processed plate material W from being damaged due to the contact between the plate material W and the lower mold 27.

The front-side work support portion 43f and the rear-side work support portion 43r of each work support belt 43 are at the ascending position where they are continuously aligned with the work path line PL during the movement of the work plate W during the forming of the work plate W. The work plate W is horizontally supported at a height position matching the work path line PL.

As a result, sagging of the processed plate material W is prevented even in the case of punching of a large number of pieces, and a reduction in processing accuracy and breakage of the micro joint are avoided.

During downward molding such as burring molding, lance molding and louver molding, the lower mold carrier member 23 is used.
Of the lower mold 27 is lowered by the mold vertical movement actuator 29 by the downward molding height. After the completion of the downward forming process, as shown in FIG. 7, the vertical dynamic fluid pressure cylinder device 81 of the work supporting belt 43 at a position corresponding to the downward forming portion M such as burring forming, lance forming, louver forming, The guide members 61, 63, the pulleys 47, 53 are lowered by 83, 85, 87, so that the front-side work support portion 43 f and the rear-side work support portion 43 r of the work support belt 43 avoid interference with the downward forming portion M. Descend horizontally. The selection of the work support belt 43 located at the position corresponding to the downward forming portion M may be performed according to an instruction from an NC program or the like.

As long as the work plate W clamped to the work carriage slider 5 is not removed from the work carriage slider 5, the work plate W is moved with respect to the front work support 43f and the rear work support 43r of the work support belt 43 by X. Since the relative position does not fluctuate in both the axial coordinate direction and the Y-axis coordinate direction, the front-side work supporting portion 4 of the work supporting belt 43 at the position corresponding to the downward forming portion M
When 3f and the rear-side work supporting portion 43r are lowered, even if the downwardly formed portion M protruding downward is formed on the processed plate member W, the processed plate member W continues the portion where the downwardly formed portion M is not formed. The front-side work support portion 43f and the rear-side work support portion 43r of the work support belt 43 located at a height position matching the work path line PL are horizontally and stably supported at a height position consistent with the work path line PL. .

As shown in FIG. 8, the descending amounts of the front-side work supporting portion 43f and the rear-side work supporting portion 43r of the work supporting belt 43 at the position corresponding to the downward forming portion M are as shown in FIG. M may be individually set according to the molding height of M. In this case, the downward molding portion M is also the front-side work support portion 43f of the work support belt 43.
Is supported by the rear-side work support portion 43r.

When burring molding, lance molding, louver molding or the like is performed upward, the work supporting belt 4
It is not necessary to lower the front work support portion 43f and the rear work support portion 43r of No.3.

When the Y-axis servo motor 31 moves the upper mold carrier member 19 and the lower mold carrier member 23 in the Y-axis coordinate direction, the movement of the Y-axis coordinate direction causes the front-side work support portion 43f of the work support belt 43 to move. Pulley 4
The movable pulley support member 65 is moved leftward in FIGS. 2 and 3 by the servo motor 69 so that the lower mold carrier member 23 enters between the 5th side and the pulley 55 side of the rear work support portion 43r. Then, the movable pulley support member 67 is moved rightward in FIGS.

Thus, the distance between the pulley 45 side of the front-side work support portion 43f of the work support belt 43 and the pulley 55 side of the rear-side work support portion 43r is made wide enough to allow the lower mold carrier member 23 to pass through. As a result, the lower mold carrier member 23 moves in the Y-axis coordinate direction without being hindered by the front work support portion 43f and the rear work support portion 43r of the work support belt 43.

By moving the lower mold carrier member 23 in the Y-axis coordinate direction, the front-side work supporting portion 43f is moved as described above.
Pulley 45 side of the rear and the pulley 5 of the rear side work supporting portion 43r
The movable pulley support members 65 and 67 of the work support belt 43 whose distance from the work support belt 43 is widened are connected to the lower mold carrier member 2.
After passing through 3, the gap returns to the original position, and the gap between the pulley 45 side of the front work support portion 43f and the pulley 55 side of the rear work support portion 43r returns to the original size of the gap G.

4 to 6 show another embodiment of the work table apparatus according to the present invention. In FIGS. 4 to 6, parts corresponding to FIGS. 1 to 3 are indicated by the same reference numerals as those given to FIGS. In this embodiment, the movable pulley support members 65 and 67 each include a spring 9.
3 and 95, the pulley 45 side of the front work support portion 43f of the work support belt 43 and the rear work support portion 4
The 3r and the pulley 55 side are urged toward each other.

Cam follower rollers 97 and 99 are rotatably attached to the movable pulley support members 65 and 67, respectively. A tapered isosceles triangular cam member 101 is fixedly mounted on both sides of the lower mold carrier member 23 in the Y-axis coordinate direction, and cam follower rollers 97 and 99 are mounted on the isosceles portion of the cam member 101 by springs 93 and 95, respectively. Contact by the spring force.

In this embodiment, the cam follower rollers 97 and 99 of the work supporting belt 43 at positions not corresponding to the lower mold carrier member 23 are provided with springs 93 and 9.
Due to the spring force of No. 5, the gap between the pulley 45 side of the front work support portion 43f of the work support belt 43 and the pulley 55 side of the rear work support portion 43r of the work support belt 43 is kept at a small gap G.

On the other hand, the cam follower rollers 97 and 99 of the work supporting belt 43 at positions corresponding to the lower mold carrier member 23 are provided on the side peripheral wall portion of the lower mold carrier member 23 or the isosceles of the cam member 101. The lower mold carrier member 23 between the pulley 45 side of the front work support portion 43f of the work support belt 43 and the pulley 55 side of the rear work support portion 43r. Is located.

When the upper mold carrier member 19 and the lower mold carrier member 23 are moved in the Y-axis coordinate direction by the Y-axis servo motor 31, the cam follower roller 97 of the movable pulley support member 65 and the movable pulley are moved with the Y-axis coordinate direction movement. The cam member 101 enters between the cam follower roller 99 of the support member 67 and the movable pulley support member 65 moves leftward in FIGS. 4 to 6 against the spring force of the spring 95.
Move to the right with.

As a result, the distance between the pulley 45 side of the front work support portion 43f of the work support belt 43 and the pulley 55 side of the rear work support portion 43r increases, and the lower mold carrier member 23 moves in the Y-axis coordinate direction. Is performed without being hindered by the front-side work support 43f and the rear-side work support 43r of the work support belt 43.

The movement of the lower mold carrier member 23 in the Y-axis coordinate direction causes the front-side work support portion 43f to move as described above.
Pulley 45 side of the rear and the pulley 5 of the rear side work supporting portion 43r
The movable pulley support members 65 and 67 of the work support belt 43 whose distance from the work support belt 43 is widened are connected to the lower mold carrier member 2.
After the passage 3, the spring 93, 95 returns to the original position by the spring force, and the gap between the pulley 45 side of the front work support 43f and the pulley 55 side of the rear work support 43r is equal to the original gap G. Back to

In any of the above-described embodiments, the work support belt 43 is also in the same phase position when the work carriage slider 5 is at the home position. The origin setting may be performed by fitting a urethane-free bearing or the like provided at the position into the through hole by lowering the work support belt 43. This origin setting may be performed by brush members provided upright between the work support belts 43 adjacent to each other.

In the above-described embodiment, the work plate W is clamped to the work carriage slider 5 and moved in the X-axis coordinate direction. The work support belt 43 may be moved in the X-axis coordinate direction by moving the front-side work support portion 43f and the rear-side work support portion 43r in the X-axis coordinate direction. In this case, the work support belt 43 is forced by the X-axis servo motor. It only has to be driven. Also, when the work carriage slider 5 is used, the work support belt 43 may be driven by a drive source different from the drive source for the work carriage slider 5 in the X-axis coordinate direction.

Although the present invention has been described in detail with reference to specific embodiments, the present invention is not limited to these embodiments, and various embodiments can be made within the scope of the present invention. Some will be apparent to those skilled in the art.

[0055]

The present invention can be understood from the above description of the embodiments.
As described above, in the present invention,
A plurality of supporting plate materials are supported on both sides of the lower mold in the X-axis direction.
The work support belts are arranged in parallel in the Y-axis direction, and
Work belt is movable in the same direction synchronously.
Each work support belt is individually movable up and down
When the work plate is moved in the X-axis direction from
While preventing the slip between the holding belt and the processed plate material,
This is the case when a downwardly protruding forming process is performed on the processed plate material.
It can be easily handled even if
It can solve the conventional problem .

Further, the work supporting belt is subdivided in a direction orthogonal to the moving direction of the processed plate material, and the work supporting portion of the belt located at a position corresponding to the plate processed portion of the plate processing machine bypasses the plate processed portion. When it is configured, there is no large gap of unsupported plate material around the plate material processing part, thereby avoiding the destruction of the micro joint, processing of thin plate with low rigidity, and reliable multi-piece processing It can be performed with high precision.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing one embodiment of a work table device of a sheet material processing machine according to the present invention.

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

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a plan view showing another embodiment of the work table device of the plate processing machine according to the present invention.

FIG. 5 is an enlarged plan view showing a main part of the work table device of the plate material processing machine according to the present invention shown in FIG. 4;

6 is a longitudinal sectional view of a main part of the work table device of the sheet material processing machine according to the present invention shown in FIG. 4;

FIG. 7 is a partial side view showing an operation example of the work table device of the sheet material processing machine according to the present invention.

FIG. 8 is a partial side view showing another operation example of the work table device of the sheet material processing machine according to the present invention.

FIG. 9 is a perspective view showing an embodiment in which the work table device according to the present invention is applied to a press-type double-sided forming machine.

[Explanation of symbols]

 Reference Signs List 1 bed member 5 work carriage slider 9 X-axis servo motor 13 portal frame 15 lower frame 19 upper mold carrier member 21 linear guide section 23 lower mold carrier member 25 upper mold 27 lower mold 29 mold vertical actuator 31 Y-axis servo motor 39 Index motor 41 Die stocker 43 Work support belt 43f Front work support 43r Rear work support 61, 63 Guide member 65, 67 Movable pulley support member 69, 71 Servo motor 81, 83, 85, 87 Vertically moving fluid pressure cylinder device 89 Fluid pressure cylinder device for maintaining belt tension 91 Connecting portion 93, 95 Spring 97, 99 Cam follower roller 101 Cam member

Claims (2)

(57) [Claims] 1. Pressing a work plate that can move in the X-axis direction
X-axis of upper and lower molds movable in Y-axis direction to perform processing
Supporting multiple workpieces supporting the work plate on both sides in the direction
Belts are provided in parallel in the Y-axis direction, and
And movably set in the same direction.
A work table apparatus for a plate material processing machine, wherein work support belts are individually movable vertically . 2. A work table device for a plate material processing machine for supporting a processed plate material movably in one coordinate axis direction, the work table device including a work support portion extending along a work path line and forming a work table surface, The work support portion has a work support belt configured to move in the same direction and at the same speed in the moving direction of the work plate in synchronization with the movement of the work plate.
The work supporting belt is subdivided in a direction orthogonal to the moving direction of the processing plate material, and the work supporting portion of the belt located at a position corresponding to the plate processing portion of the plate processing machine bypasses the plate processing portion. A work table device for a plate processing machine, comprising: