JPH06170469A - Work table device of metal sheet machine - Google Patents

Abstract

PURPOSE:To improve durability of the machine by moving a metal sheet to be machined in the moving direction synchronously with its movement, and composing a work supporting part of chain providing rollers which supports and drives to rotate the metal sheet to be machined. CONSTITUTION:A metal sheet to be machined is supported so as to be movable in the direction of one of coordinate axes on a work table device 33 of the metal sheet machine. A work supporting part which composes a work table surface extending along a work pass line is provided on this device 33. This work supporting part is moved in the movement direction of the metal sheet to be machined synchronously with the movement of the metal sheet to be machined, and also it is composed of a chain 37 providing plural rollers 35 which support, and drive to rotate the metal sheet to be machined. The chain 37 is finely divided in a direction orthogonally crossing to the movement of the metal sheet to be machined, and the chain 37 positioned at the position corresponding to the metal sheet machining part is constituted so as to be freely movable following the movement of the metal sheet machining part. Therefore, the maintemance or the repair can be easily executed.

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, and more particularly to a work table for a plate material processing machine such as a forming machine that supports a processed plate material so as to be movable in one coordinate axis direction. It relates to the device.

[0002]

2. Description of the Related Art Conventionally, as a plate material processing machine, for example, a work table device of a molding machine moves a plate material processing section such as a molding processing section by a punch and a die provided in the molding processing machine in the Y-axis direction and Is moved along the work path line in the X-axis direction, so that a predetermined position of the plate material is formed.

Therefore, the work supporting portion of the work table device is of a roller type or a belt type. Since the die, which is the plate material processing portion, moves in the Y-axis direction, a large opening is formed on the work table in the range through which the die passes. Since there are various inconveniences if this opening is left as it is, a belt type work support is used, and this belt is subdivided in the direction orthogonal to the moving direction of the work plate material, and the movement of the die is followed. It has been considered that a work table is configured by movably providing a belt.

[0004]

By the way, in the belt type work supporting portion adopted in the work table device in the above-mentioned conventional plate material processing machine, when the plasma processing or the laser processing is used together, the work supporting portion is There was a problem that a fire might occur on the belt because it was covered with fire or became hot.

In order to solve the above-mentioned problems, an object of the present invention is to use a chain having rollers and closing a hole of a passage of a plate material processing portion to improve durability by using a work table device of a plate material processing machine. To provide.

[0006]

In order to achieve the above object, the present invention provides a work table device of a plate material processing machine which supports a processed plate material so as to be movable in one coordinate axis direction,
It includes a work supporting portion that extends along the work path line and forms a work table surface, and the work supporting portion moves in the moving direction of the working plate material in synchronization with the movement of the working plate material and supports the working plate material. It is a work table device of a plate material processing machine configured by a chain including a plurality of rollers that are rotationally driven.

Further, in the work table device of the plate material processing machine, the chain is subdivided in a direction orthogonal to the moving direction of the processed plate material, and the chain located at a position corresponding to the plate material processing part moves the plate material processing part. It is desirable to be configured so as to be able to move according to.

[0008]

By employing the work table device of the plate material processing machine according to the present invention, the work support portion of the chain having a plurality of rollers which are rotationally driven continuously supports the work plate material in a planar manner, and the work support portion is It moves in the moving direction of the processed plate material in synchronization with the movement of the processed plate material. Therefore, when the machined plate is moved, relative displacement does not occur between the machined plate and the work supporting portion of the chain supporting the machined plate.

Further, the chain is subdivided in a direction orthogonal to the moving direction of the plate material, and the chain located at a position corresponding to the plate material processing part of the plate material processing machine is movable in accordance with the movement of the plate material processing part. Since it is provided, a large gap that does not support the processed plate material is not generated around the plate material processing portion.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS This embodiment will be described below in detail with reference to the drawings.

Referring to FIG. 9, the plate material forming machine 1 is
The slider 7 is provided on the frame 3 and is reciprocally movable in the X-axis direction by being guided by a linear guide 5 extending in the X-axis direction.

The slider 7 is provided with a plurality of work clamps 9, and the work plate 9 is detachably horizontally supported along the work path line by the work clamps 9. The slider 7 is provided on the lower bottom portion. A rack (not shown) meshes with a pinion (not shown) that is interlocked with an X-axis motor (not shown), and is reciprocally driven in the X-axis direction.

A gate type frame 11 is attached to the frame 3 so as to straddle the frame 3 in the Y-axis direction. Further, in the frame 3, a lower frame 13 is provided in which the gate-shaped frame 11 extends across the frame 3 in the Y-axis direction at the same position as the frame 3.

A punch head 17 as a plate material processing portion 15 is mounted on the gate-shaped frame 11, and a die head 19 is mounted on the lower frame 13 so as to be reciprocable in the Y-axis direction. The punch head 17 and the die head 19 are vertically aligned and opposed to each other with a pass line interposed therebetween, and exchangeably support an upper die 21 such as a punch, and the die head 19 also allows a lower die 23 such as a die to be exchanged. It is supposed to support.

The gate-shaped frame 11 has a Y-axis servomotor 2
5 is attached. The Y-axis servomotor 25 is an upper ball screw (not shown) driven by a belt-type synchronous drive device 27.
And a lower ball screw (not shown) are synchronously driven,
The punch head 17 and the die head 19 are synchronously reciprocally driven in the Y-axis direction.

The upper die 21 of the punch head 17 and the lower die 23 of the die head 19 are each rotatable about a vertical center axis, and each of them is rotated by an index motor 29 attached to the portal frame 11. It is indexed and rotationally driven, and the rotational posture is variably set. Further, a die stocker 31 is provided on one side of the frame 3, and the upper die 21 and the lower die 23 stored in the die stocker 31 are punched by an automatic die exchanging device (not shown). The head 17 and the die head 19 are replaceably automatically mounted.

The work table device 33 provided on the frame 3 is subdivided in the frame 3 in a direction orthogonal to the moving direction (X axis direction) of the work plate W by the slider 7, that is, the Y axis direction. Is provided with a chain 37 having a large number of rotationally driven rollers 35,
The chains 37 are arranged in parallel with each other at a predetermined interval in the Y-axis direction. Then, the chain 37 is separated into a front side chain 37F and a rear side chain 37R and each is driven by a drive device (not shown).

With the above structure, the work plate W to be processed is clamped by the work lamp 9, and the work plate W is set on the slider 7. Then, the punch head 1 is moved by the movement of the slider 7 in the X axis direction and the movement of the punch head 17 and the die head 19 by the Y axis servo motor 25 in the Y axis direction.
The upper die 21 of 7 and the lower die 23 of the die head 19 are Y
Move in the axial direction, and place the upper die 21 at a predetermined position on the processed plate W.
With the lower die 23, punching and other forming processes are performed.

1 and 2 show the essential parts of a work table device 33 according to this embodiment. The work table device 33 has a chain 37 including a roller 35 that is subdivided in a direction orthogonal to the moving direction (X-axis direction) of the processed plate material W by the slider 7, that is, in the Y-axis direction, and that drives many rotations. is doing. In other words, a large number of chains 3
7 are arranged in parallel in the Y-axis direction at a predetermined interval.

The chain 37 has a chain plate 39 and a pin 41 as shown in detail in FIGS.
The roller shaft 43 is rotatably connected to the pin 41.
, And the roller 35 is integrally formed with the roller shaft 43.
Is provided. The adjacent rollers 35 are configured to be able to transmit power by wrapping a belt 45, such as a timing belt, between the adjacent rollers 35, and the members other than the belt 45 are made of metal or heat-resistant material that can withstand light and heat. It is made in.

Referring again to FIGS. 1 and 2, tapered isosceles triangular cam members 47 are fixedly mounted on both sides of the die head 19 having the lower mold 23 in the Y-axis direction. A moving member 49 of the chain 37 that contacts the side surface of the cam member 47 following the movement of the member 47 is provided.

As shown in detail in FIG. 2, the moving member 49 supports the chain 37 on a U-shaped chain receiver 51, and the chain 37 is supported on the chain receiver 51 by a pin 41A provided on the chain 37. It is fixed. A cam follower roller 53 that comes into contact with the side surface of the cam member 47 is rotatably provided at the tip (right side in FIG. 2) of the chain receiver 51, and the chain receiver 51 is provided in a groove 57 formed on the upper surface of the support member 55. It is mounted so that it can move in the X-axis direction.

Further, a projection 61 vertically extending from the lower surface of the chain receiver 51 is inserted into a hole 59 formed on the upper surface of the support member 55, and the projection 61 and the hole 59 are provided.
An ammunition machine 63, such as a tension coil spring, is mounted between the cam 37 and one side thereof, and the chain 37 is constantly urged in the direction of abutting the contact surface of the cam member 47.

A curved surface portion 65 is formed on the rear portion (left side in FIG. 2) of the support member 55, and the support member 55 is supported by the lower frame 13. As means for driving the rollers 35 of the chain 37, the lower frame 13
6 mounted on the output shaft of the drive motor 67 provided in the
9 and a driven pulley 71 mounted on the roller 35 at a predetermined position.
The belt 73 is wound around and the power is transmitted.

Further, a hawk end 79 provided on the piston rod 77 of the cylinder 75 is connected to the end of the chain 37, and the cylinder 75 is fixed to the lower frame 13. The curved surface portion 65 formed on the support member 55.
The chain plate 39 of the chain 37 that slides on the
As shown in FIG. 3, a protruding sliding contact portion 81 is formed so that the sliding contact portion 81 of the chain plate 39 slides on the curved surface portion 65 so that the roller 35 does not directly contact. ing.

With the above structure, most of the chain 37 is supported by the chain receiver 51 and moves only in the horizontal direction, so that the chain 37 can be prevented from hanging down. Further, since the cam follower roller 53 provided on the chain receiver 51 contacts the die head 19 and the cam member 47, the roller 35 at the tip on the die head 19 side does not directly contact the die head 19 and the cam member 47. Even if 19 moves, it will not be rubbed.

Further, the chain receiver 51 is constantly urged toward the die head 19 by the ammunition 63, and the cylinder 37 is given a predetermined pressure to thereby cause the chain 37 to move.
Tension is applied to the roller 35 on the pass line PL.
Is prevented from rising. Still further, the supporting member 55 may be moved up and down by a cylinder (not shown) or the like so that the downwardly formed portion of the processed plate material W can also be supported.

With the above-mentioned structure, the operation is as shown in FIG. 1, that is, the die head 19 is stopped at a predetermined position, and at this time, the chain 37
Front side chain 37F and rear side chain 37R
In the portion of the die head 19 which is not in contact with the cam member 47, the cam follower rollers 53 provided at the tip of the chain receiver 51 are in contact with each other. Further, the cam follower rollers 53 of the respective chains 37 are brought into contact with the positions of the cam members 47 provided on the die head 19 at the positions corresponding to the side surface inclinations and stopped. Drive motor 6 in this state
The power provided by the roller 35 causes the roller 35 to move the processed plate material W.
The processed plate material W is not scratched by rotating in accordance with the movement.

When the die head 19 having the lower die 23, which is the plate material processing section 15, moves in the Y-axis direction, the cam follower roller 53 provided on the chain receiver 51 causes the cam member 47 to move.
Then, the chain 37 is pulled in by the cylinder 75. At this time, if the drawing speed of the chain 37 is V1, the processed plate material W is rubbed at the speed of V1 by the roller 35 during the drawing operation.
And as shown in FIG. 7, measures are taken to avoid rubbing.

That is, the state shown in FIG. 6 is a schematic view of the cross section of the work table device 33, in which the die head 19 is not present at the center X of the plate material processing portion 15. When the die head 19 moves in the Y-axis direction from the state, the state shown in FIG. 7 is obtained.

When the radius L1 of the cam member 47 provided on the die head 19 is avoided while the driven pulley 71 provided at a predetermined position of the chain 37 is completely stopped, the driven pulley 71 is moved by being pulled by the cylinder 75. Then, the driven pulley 71 is rotated by one revolution before moving from the position shown in FIG. 6 to the position shown in FIG. In this way, the pull-in amount, the reduction ratio between the pulley 69 provided on the drive motor 67 and the driven pulley 71, and the roller 3
Determine the diameter of 5 properly. As a result, by making the outer circumference L2 of the roller 35 the same as the radius L1 of the die head 19, the roller 35 does not scrape the processed plate material W as in the state of rolling along the pass line PL. This is the same even when the driven pulley 71 is driven and rotating.

Since the work table device 33 is constituted by the chain 37 provided with the roller 35 for rotationally driving and the member is made of steel, it is resistant to heat and can be used for plasma processing or laser processing. It is easier to maintain and repair than the belt type work table device of and the durability can be improved. Further, since the surface of the processed plate material W is not rubbed, the quality can be improved.

FIG. 8 shows another embodiment. This embodiment is another embodiment of the chain 37.
As a power transmission mechanism of the roller 35, a small diameter roller 83 for transmission is mounted between the rollers 35, and the result is the same as that of the first embodiment.

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

[0035]

As will be understood from the above description of the embodiments, according to the present invention, since the construction is as described in the claims, the work table device is arranged in the moving direction of the work plate material. The chain is composed of subdivided chains in orthogonal directions, and the rollers provided on the chain are driven to rotate in synchronization with the movement of the plate material, and the movement of the chain follows the movement of the plate material processing part.

Thus, by closing the hole of the passage of the plate material processing part and using the chain, it is resistant to heat and the durability can be improved. Further, maintenance and repair can be performed easily as compared with the conventional belt type work table device.

[Brief description of drawings]

FIG. 1 is a plan view showing a main part of the present invention and showing an enlarged main part of a work table device.

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

FIG. 3 is an enlarged cross-sectional explanatory view of a portion indicated by an arrow III in FIG.

FIG. 4 is an explanatory plan view of the chain according to the present invention.

5 is an explanatory side view of FIG.

FIG. 6 is an operation explanatory view of the work table device of the present invention.

FIG. 7 is an operation explanatory view of the work table device according to the present invention.

FIG. 8 is a side view showing another embodiment of the chain according to the present invention.

FIG. 9 is a perspective explanatory view of a plate material forming machine equipped with a work table device according to an embodiment of the present invention.

[Explanation of symbols]

 1 Plate Material Forming Machine 15 Plate Material Processing Section 33 Work Table Device 35 Roller 37 Chain

Claims (2)

[Claims] 1. A work table device for a plate material processing machine that movably supports a work plate material in one coordinate axis direction, including a work support portion extending along a work path line to form a work table surface. While the work support moves in the moving direction of the processed plate in synchronization with the movement of the processed plate,
A work table device for a plate material processing machine, comprising a chain having a plurality of rollers for supporting and rotating the processed plate material. 2. The chain is subdivided in a direction orthogonal to the moving direction of the plate material, and the chain positioned at a position corresponding to the plate material processing portion is configured to be movable following the movement of the plate material processing portion. The work table device for a plate material processing machine according to claim 1, wherein: