JP2569150Y2 - 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 apparatus for a plate processing machine for a press forming machine, and more particularly to a work table apparatus for a plate processing machine for supporting a processed plate material so as to be movable in one coordinate axis direction. is there.

[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 configured to perform processing at a predetermined position of a processed plate material by performing the processing.

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

[0004]

The plate material support in the worktable device as described above is performed by point support using a free bearing or the like. In this case, the microjoint of the punched product is caught on the free bearing, and this is a problem. If the punched product is detached or the dimensions of the punched product are small, there is a disadvantage that the lower limit of the punched dimension occurs because the punched product falls between the free bearings. 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.

Further, in the conventional worktable device, any one of the conventional worktable devices has no projection on the support surface of the workplate material, that is, the lower bottom surface, because the workplate material moves along the worktable surface. Since a flat surface is required, it is refused to perform downward molding such as burring molding, lance molding, and louver molding, that is, to perform downward molding in which a projection is formed below a processed plate material.

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.

The present invention has been made in view of the above-mentioned problems in a work table apparatus of a conventional workpiece moving plate processing machine, which breaks a micro joint or scratches a processed plate. It is an object of the present invention to provide a work table apparatus of a sheet material processing machine that reliably supports a small-sized punched product without giving it and does not generate a loud noise.

[0008]

SUMMARY OF THE INVENTION According to the present invention, there is provided a work table apparatus for a plate material processing machine for supporting a processed plate material movably in one coordinate axis direction, the work table device extending along a work path line. A front work support belt comprising a brush belt including a work support part forming a work table surface, wherein the work support part moves 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. And a rear-side work support belt, and a lower mold part work support belt, wherein the lower mold part work support belt is segmented in a direction orthogonal to the moving direction of the processing plate material in a moving range portion of the lower mold carrier member. The lower mold is moved from a horizontal position individually aligned with the work path line in conjunction with the movement of the lower mold carrier member for each of the segmented belts. It is achieved by the work table apparatus of the plate material processing machine, characterized in that is configured to retract to the retracted position for allowing the movement of the carrier member.

[0009]

According to the above construction, the front side work support belt, the rear side work support belt and the lower mold part work support belt comprising the belts with the brushes continuously and horizontally support the work plate material in a plane. The work support belt moves 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, and the relative displacement between the work plate and each work support belt supporting the work plate when the work plate moves. Does not occur.

Further, since the work plate is continuously supported in a planar manner by the lower mold portion work support belt, a large gap unsupported by the work plate does not occur around the work portion of the plate.

[0011]

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

FIG. 1 shows an embodiment in which the work table apparatus according to the present invention is applied to a press-type double-sided forming machine.

The double-sided forming machine has a 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 provided with a work plate W
Are removably supported horizontally along a work path line PL (see FIG. 3), and are reciprocated in the X-axis coordinate direction by an X-axis servo motor 11 via a ball screw 9 as shown in FIG. 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 FIG. 3) is provided in the bed member 1 and extends across the bed member 1 in the Y-axis coordinate direction at the same position as the portal frame 13.

The gate type frame 13 has a linear guide 17
(See FIG. 3), the upper mold carrier member 19 is provided, and the lower frame 15 is provided with a linear guide portion 21 (see FIG. 3).
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. 3). The lower mold carrier member 23 exchangeably supports a lower mold 27 (see FIG. 3) such as a die. The upper mold carrier member 19 is not shown, but is not shown.
The lower die carrier member 23 has a raised position where the lower die 27 is aligned with the height position of the work path line PL and a lower position of, for example, 30 mm. It has a built-in mold vertical movement actuator (not shown) for moving up and down with respect to a lowered position about below.

The Y-axis servo motor 2 is
9 are attached. The Y-axis servo motor 29 is driven by an upper ball screw 31 by a belt-type synchronous drive device (not shown).
(See FIG. 3) and the lower ball screw 33 (see FIG. 3) in a synchronous driving manner, so that the upper mold carrier member 19 and the lower mold carrier member 23 are synchronously reciprocally driven in the Y-axis coordinate direction. ing.

The upper mold 25 of the upper mold carrier member 19 and the lower mold 27 of the lower mold carrier member 23 are rotatable about a vertical central axis, respectively. Each of the index motors 35 is indexed and driven to rotate, and the rotation posture is variably set.

FIGS. 2 and 3 show a main part of the work table apparatus according to the present embodiment. The work table device includes a front-side work support belt 37f and a rear-side work support belt 37r that form work supports arranged in the direction in which the work plate W is moved by the work carriage slider 5.
And a lower mold part work support disposed between the front work support belt 37f and the rear work support belt 37f and serving as a work support part of the lower mold 27 in the movement range of the lower mold carrier member 23. And a belt 39c.

Each of the front work support belt 37f and the rear work support belt 37r is a belt with a brush in which a brush member B (see FIG. 1) is implanted on a surface of a flexible band made of rubber or the like having a predetermined width. The front-side work support belt 37f is wound around rollers 41 and 43, and the rear-side work support belt 37r is wound around rollers 45 and 47 so as to be able to travel around. The rollers 41, 43, 45, and 47 are arranged at positions near the lower frame 15 in the X-axis coordinate direction of the bed member 1 and at both ends thereof, and are rotatably supported by roller shafts 49, 51, 53, and 55. Each roller 41, 43, 4
5, 47 have the same roller diameter.

A first driven bevel gear 57 is fixed to one end of a roller shaft 49 for supporting the front roller 41 of the front side work support belt 37f. The first driven bevel gear 57 is an X-axis servo motor. X connected to 11
Drive shaft 5 including the ball screw 9 extending in the axial coordinate direction
9 is meshed with a first drive bevel gear 61 fixed to the drive gear 9. Then, the roller 41 of the front side work support belt 37f is driven by the X-axis
The driving bevel gear 61, the first driving bevel gear 57, and the roller shaft 49 are driven to rotate.

A second driven bevel gear 63 is provided at one end (on the same side as the roller shaft 49) of a roller shaft 55 that supports the rear roller 47 of the rear work support belt 37r.
The second driven bevel gear 63 is meshed with a second drive bevel gear 65 fixed to the drive shaft 59. Then, the roller 47 of the rear side work support belt 37r is driven by the X-axis servomotor 11 on the drive shaft 59,
The second drive bevel gear 65, the second driven bevel gear 63, and the roller shaft 55 are driven to rotate. The first driven bevel gear 57 and the second driven bevel gear 63 have the same number of teeth, and the first drive bevel gear 61 and the second drive bevel gear 65 are also formed with the same number of teeth.

With such a configuration, the roller 41 of the front-side work support belt 37f and the roller 47 of the rear-side work support belt 37r are synchronously driven to rotate in the same direction and at the same speed. The rear work support belt 37r is moved at the same speed in the same direction in synchronization with the movement of the work plate W in the X-axis coordinate direction.

The lower mold part work support belt 39c, which forms the work table surface of the lower mold part 27, is in a direction orthogonal to the moving direction (X-axis coordinate direction) of the work plate W, ie, Y.
It has a plurality of belts 39 segmented at predetermined intervals in the axial coordinate direction.

Each of the belts 39 is constituted by a belt with a brush in which a brush member B is implanted on a surface of a flexible band made of rubber or the like having a predetermined width, and has an endless shape. It is suspended so that you can make a round trip.

As shown in FIG. 4, the rollers 67 and 69 of each belt 39 are individually attached to both ends of a support frame 71 by roller shafts 7.
It is rotatably supported by 3,75. The roller shaft 73 of each roller 67 on the front side is linked and connected, and one end of the roller shaft 73 (the roller shaft 49,
A third driven bevel gear 77 is fixedly provided on the same side as 55), and the third driven bevel gear 77 is meshed with a third drive bevel gear 79 fixedly provided on the drive shaft 59. The third driven bevel gear 77 has the same number of teeth as the first and second driven bevel gears 57 and 63, and the third drive bevel gear 79 has the same number of teeth as the first and second drive bevel gears 61 and 65. Is formed. The rollers 67, 69 have the same roller diameter as the rollers 41, 43, 45, 47.

With such a configuration, the roller 67 of each belt 39 is connected to the roller 4 of the front side work support belt 37f.
1 and at the same speed in the same direction in synchronization with the rollers 47 of the rear work support belt 37r.
Reference numeral 9 is adapted to be moved at the same speed in the same direction as the moving direction of the work plate W in synchronization with the front-side work support belt 37f and the rear-side work support belt 37r.

The supporting frame 71 of each belt 39 is connected to a hydraulic cylinder device 81, and the hydraulic cylinder device 81 allows the horizontal position and the lower mold carrier member 23 to be individually aligned with the work path line PL. To be folded and retracted.

Each belt 39 detects the start of movement of the lower mold carrier member 23 by a sensor (not shown), and the hydraulic cylinder device 81 is operated by a signal generated by the signal, and is rotated to the retracted retracted position, and is moved to the lower retracted position. 2
Allow 3 moves. And the lower mold carrier member 2
After the 3 moves, the fluid pressure cylinder device 81 is rotated to a horizontal position matching the work path line PL by the operation of the fluid pressure cylinder device 81.

Next, the operation of the double-sided forming machine equipped with the work table device having the above-described configuration will be described.

The work plate W is clamped by the work clamp 7, and the work plate W is set on the work carriage slider 5. As a result, the work plate W is connected to the work carriage slider 5, and the front work support belt 37
f, the rear-side work support belt 37r and the lower mold part work support belt 39c are placed on the brush member B and horizontally supported at a height position matching the work path line PL.

When the work carriage slider 5 is moved by the X-axis servo motor 11 in the X-axis coordinate direction, the work plate W is moved in the X-axis coordinate direction along the work path line PL.
Upper mold carrier member 19 by Y-axis servo motor 29
And the lower mold carrier member 23 moves in the Y-axis coordinate direction, 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 Y-axis coordinate direction. A molding process such as a punching process is performed at a predetermined position by the upper mold 25 and the lower mold 27.

When the workpiece carriage W is moved in the X-axis coordinate direction by the work carriage slider 5, the front work support belt 37f, the rear work support belt 37r, and the front work support belt 37r are interlocked with the movement of the work carriage slider 5 in the X-axis coordinate direction. Since each belt 39 is forcibly driven by the X-axis servo motor 11 via the rollers 41, 47, 67, the front work support belt 37f, the rear work support belt 37r, and the lower mold part work support belt 39c are respectively formed. X of work plate material W of work carriage slider 5
It moves in the same direction at the same speed in synchronization with the movement in the axis coordinate direction.

As a result, when the work plate W is moved in the X-axis coordinate direction, the work plate W, the front work support belt 37f and the rear work support belt 37r that form a work table surface for supporting the work plate W, and the lower mold part work support belt. 3
9c, that is, when the work plate W moves in the X-axis coordinate direction, the work table surface (the front work support belt 37f, the rear work support belt 37r, and the lower mold part work support belt 39c). ) Does not occur, 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 to a position below the work path line PL by the mold vertical actuator, whereby the work plate is moved. The processing plate material W is also prevented from being damaged by the contact of the W with the lower mold 27.

The front work support belt 37f, the rear work support belt 37r, and the lower mold part work support belt 39c continue to be 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 a plurality of pieces and the like, and a reduction in processing accuracy and breakage of the micro joint are avoided.

As long as the work plate material W clamped to the work carriage slider 5 is not removed from the work carriage slider 5, the front work support belt 37
Since the relative positions of f and the rear-side work support belt 37r and the lower mold part work support belt 39c do not change in the X-axis coordinate direction or the Y-axis coordinate direction, burring forming, lance forming, louver forming. The downwardly-formed parts such as the front side work support belt 37f, the rear side work support belt 37r, and the lower mold part work support belt 39c
Even if a downwardly formed portion that is supported by the brush member B implanted at the bottom and is protruded downward from the processing plate material W is formed, the processing plate material W continues the part that is not formed downward to the front side work support belt 37f. Rear-side work support belt 37r and lower mold part work support belt 39c
Is stably supported horizontally at a height position matching 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 Y-axis servo motor 29, the sensor detects the start of movement of the lower mold carrier member 23 and issues a signal. In response to the signal, the fluid pressure cylinder device 81 of each belt 39 on the moving direction side of the lower mold carrier member 23 is operated to fold the belt 39 via the support frame 71 and rotate to the retracted position.

As a result, the movement of the lower mold carrier member 23 in the Y-axis coordinate direction is reduced by the lower mold part work support belt 39.
c without being hindered.

By moving the lower mold carrier member 23 in the Y-axis coordinate direction, the belt 39 rotated to the folding retracted position as described above passes through the lower mold carrier member 23,
It returns to its original position and returns to a horizontal position that matches the work path line forming the worktable surface.

In the above, the present invention has been described in detail with respect to a specific embodiment. However, the present invention is not limited to this. For example, as shown by a chain line in FIG. Are provided with timing pulleys 83 and 85 having the same number of teeth, respectively.
5, the rollers 41 and 67 can be rotated in the same direction and at the same speed. In this case, the third driven bevel gear 77 and the third drive bevel gear 79 can be omitted. The present invention can be implemented in other modes by making appropriate changes.

[0043]

As will be understood from the above description, according to the work table apparatus of the plate processing machine according to the present invention, the front work support belt, the rear work support belt and the lower work support belt each formed by a belt with a brush. The mold part work support belt continuously and horizontally supports the processed plate material in a plane, and each work support belt moves in the same direction and at the same speed in the moving direction of the processed plate material in synchronization with the movement of the processed plate material, and performs processing. Since there is no relative displacement between the processed plate and each work support belt that supports it when moving the plate, small-sized punched products can be used without breaking micro joints or scratching the processed plate. It is securely supported and does not generate a loud noise when the work plate moves.

Further, by continuously supporting the processed plate material in a planar manner by the lower mold part work supporting belt, a large gap without supporting the processed plate material does not occur around the processed plate material portion. Of a thin plate having a low rigidity and a multi-piece processing can be reliably performed with high precision.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment in which a work table apparatus according to the present invention is applied to a press-type double-sided forming machine.

FIG. 2 is a schematic perspective view showing an embodiment of a work table device of the plate processing machine according to the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a perspective view showing a main part of a lower mold part work support belt of the work table device of the plate material processing machine according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 bed member 5 work carriage slider 11 X-axis servo motor 13 portal frame 15 lower frame 17 linear guide section 19 upper mold carrier member 21 linear guide section 23 lower mold carrier member 25 upper mold 27 lower mold 29Y Shaft servo motor 35 Index motor 37f Front side work support belt 37r Rear side work support belt 39c Lower mold part work support belt 39 Belt 81 Fluid pressure cylinder device

Claims (1)

(57) [Scope of request for utility model registration] 1. A work table device of a plate processing machine for supporting a processed plate movably in one coordinate axis direction,
With a brush that extends along the work path line and includes a work support part that forms a work table surface, and the work support part moves in the same direction and at the same speed in the movement direction of the work plate in synchronization with the movement of the work plate. A belt-side work support belt and a rear-side work support belt; and a lower mold part work support belt, wherein the lower mold part work support belt moves a work plate in a movement range of the lower mold carrier member. Segmented in a direction perpendicular to the direction,
Each of the segmented belts is configured to retreat from a horizontal position individually aligned with the work path line to a retreat position allowing the lower mold carrier member to move in conjunction with the movement of the lower mold carrier member for each of the segmented belts. A work table device for a plate material processing machine.