JP2524175Y2 - Laser processing equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser processing apparatus provided with a table on which a workpiece is placed opposite to a laser beam irradiation section provided on an upper frame.

[0002]

2. Description of the Related Art Conventionally, an apparatus for processing a workpiece by a laser beam while fixing the workpiece on a moving table has been proposed in Japanese Utility Model Publication No. 57-54952. This laser processing apparatus is provided with a support portion on which a needle-shaped workpiece is placed on a moving table, and irradiates a laser beam from a processing head onto the workpiece placed and fixed on the support portion. The relatively small product falls through the support section and is transferred to a conveyor placed below the moving table, and is transported.The relatively large product remains mounted on the indicator and is processed. After the processing of the object was completed, it was taken out by an operator.

[0003]

In the above-mentioned prior art, a crane or the like for suspending a workpiece is used to carry in the workpiece, and a relatively large processed product is supported by a support portion. Since this is taken out by an operator, an operator must be arranged for one or several laser processing apparatuses, and labor saving cannot be achieved.

[0004] In particular, when the laser processing apparatus is operated for 24 hours, the work is performed at midnight, and further labor saving is desired.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a laser processing apparatus capable of automatically carrying in and carrying out a workpiece.

[0006]

According to the present invention, there is provided an upper frame provided with a laser beam irradiating section, and a workpiece provided opposite to the irradiating section and having a plurality of transfer rollers arranged on the upper surface thereof. A table for moving the workpiece to be mounted, and a front in front of the loading direction of the workpiece by the transport roller.
A clamp body provided on an end side of the table, and a work guide conveyance guide roller provided on both sides in a direction orthogonal to a direction in which the work is carried in by the conveyance roller; The roller is configured so as to be able to undulate via a rotation drive unit.

[0007]

According to the above construction, the transfer guide roller is in an upright state when loading and unloading the workpiece and can guide the transport of the workpiece, while the transport guide roller is lateral when the fixed workpiece is processed. It does not obstruct the movement of the irradiating section by falling down.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a first embodiment of the present invention will be described with reference to FIGS.

A processing head 2 having a laser beam irradiation section 1 is provided on a portal frame 3 as an upper frame so as to be movable left and right and up and down by a motor (not shown) or the like. A base 4 is provided below, and a table 5 for moving the workpiece is provided on the base 4 so as to be movable back and forth by a motor (not shown) or the like, facing the processing head 2. .

The table 5 has a plurality of conveying rollers 7 arranged on the upper surface of a frame 6. The transport rollers 7 have their axes provided in the width direction of the frame 6 and a plurality of rollers are arranged side by side in the longitudinal direction of the frame 6. The transfer rollers 7 are mounted on bearings 8 provided on both sides of the frame 6.
And a driven sprocket 10 is fixed to one of the shaft portions 9. A motor 11 having a speed reducer is fixed to the front side of the frame 6, that is, to the side near the forward end of the workpiece to be described later by the transport roller 7. A chain 13 is mounted on the drive sprocket 12 and the driven sprockets 10 provided in the above. Note that a predetermined tension is applied to the chain 13 by a tension adjusting device (not shown). Therefore, by rotating the motor 11 forward or backward, the conveying roller 7
Also rotates forward or reverse. Right and left pairs of clamp bodies 14 are provided on the end side of the table 5 in the carrying direction of the iron plate 23 as the workpiece carried in by the carrying rollers 7. This clamp body 14
Mounting seat 16 slidable on guide rail 15 laid on the side
A rotating shaft 17 is supported at the upper part of the shaft, and the clamp body 14 is mounted on the rotating shaft 17. The clamp body 14 protrudes from the rotation shaft 17 in the direction of the transport roller 7, and is a flat plate-shaped lower clamp 18 disposed slightly below the upper portion of the transport roller 7, and from the upper portion of the transport roller 7. The clamp upper part 19 is provided slightly above and is opposed to the clamp lower part 18. The clamp upper part 19 is a rod 21
It is connected to the. Further, an arm 17A is connected to one end of the rotary shaft 17, and a rod 17C of an air cylinder 17B is connected to a tip of the arm 17A. The air cylinder 17B is operated by an electromagnetic switching valve (not shown) and rotated. The shaft 17 can be rotated. 17D is the bracket 17
E is a positioning bolt provided on E. The rotation shaft 17
Stoppers 22 are provided on both ends of the transfer roller 7 in the direction of the transport roller 7. The base end of the stopper 22 is fixed to the rotating shaft 17 so that the distal end of a mounting plate 24 on which an iron plate 23 as a workpiece to be carried in by the transfer roller 7 is mounted. In the embodiment, the stopper 22 is fixed to the rotary shaft 17, but may be fixed directly to the table 5.

The left and right sides of the frame 6, that is, the iron plate
On both sides in a direction orthogonal to the carrying-in direction of the transfer plate 23, transfer guide rollers 25 for guiding the side edge of the mounting plate 24 during transfer are provided, and the transfer guide rollers 25 are provided along the frame 6 in plural numbers. The axis is provided upward with a space therebetween. A shaft 26 extends through the center of the transport guide roller 25, and the shaft 26 is provided at the tip of a rotating arm 27. The base of the rotating arm 27 is
And is fixed to a rotating shaft 28 provided along. On the other hand, at the rear of the frame 6, an air cylinder 29, which is a rotation driving unit, is mounted horizontally with its base being pivoted. The rod 30 of this air cylinder 29 is pivotally pivoted on the upper part of the rotating plate 31. I have.
The rotating plate 31 is rotatably connected at its center via a shaft 32.Rod 33 is rotatably connected to both sides of the rotating plate 31. And is connected to the rotation shaft. Further, the iron plate 23
Is loaded on the table 5 while being mounted on the mounting plate 24,
The placing plate 24 is formed of a frame 35 and a net 36 such as a wire mesh stretched on the lower surface of the frame 35, and the iron plate 23 is provided on an inner edge of the frame 35. Are fitted to each other.

Reference numeral 38 in the figure denotes a cover for covering the entire apparatus, and an opening 39 is formed at the rear. 40 is a driving device for moving the table 5 to the base 4, and 41 is a base 4
A guide for slidingly guiding the table 5; and 42, a control device.

Next, the operation of the above configuration will be described.
The iron plate 23 is locked in advance on the inner edge of the mounting plate 24, and the protruding length of the rod 30 of the air cylinder 29 is long, so that the rotating arm 27 is in a vertical state, and thus the transfer guide roller 25 The axis is perpendicular to the upper surface of the frame 6. Further, the tip of the clamp lower part 18 is obliquely downward, and the rod 21 of the air cylinder 20 is in the clamp upper part 19 in an extended state. When the loading plate 24 on which the iron plate 23 is placed is horizontally loaded by a loading device (not shown) from a stocker (not shown) through an opening 39 and placed on the transport roller 7, the motor 11 is turned on. The transport roller 7 rotates forward and rotates forward. For this purpose, the placing plate 24 is carried in by the carrying roller 7. When the tip of the mounting plate 24 comes into contact with the stopper 22, the photoelectric switch (not shown) detects the mounting plate 24 and stops the rotation of the motor 11.

Next, the air cylinder 17B is operated and the rod 17
When the protruding length of C becomes shorter, the rotating shaft 17 rotates, the lower part of the clamp 18 comes into contact with the lower surface of the frame 35 of the mounting plate 24, and the air cylinder 20 operates to reduce the protruding length of the rod 21 so that the clamp becomes smaller. The upper portion 19 is lowered, and the frame 35 is fixed to the clamp lower portion 18,
It is clamped and fixed by the clamp upper part 19. When the air cylinder 29 is activated and the protruding length of the rod 30 is reduced, the rotating plate 31
Is rotated clockwise, and the rotation shaft 28 is rotated accordingly, so that the conveyance guide roller 25 falls outward. Thereafter, the irradiation unit 1 moves and the table 5 moves, so that the iron plate 23 is cut by a laser beam. At this time, even if the irradiation unit 1 approaches the conveyance guide roller 25 to cut the edge of the iron plate 23, the conveyance guide roller 25 is inclined outward, so that the irradiation unit 1 and the conveyance guide roller 25 There is no collision. And the cut iron plate 23 is a mesh
It remains mounted on 36. After the processing is performed in this manner, the clamp upper portion 19 is lifted by the air cylinder 20, the air cylinder 17B is operated, the clamp lower portion 18 is lowered, and the clamping of the clamp body 14 is released to be downward. . When the motor 11 rotates in the reverse direction, the iron plate 23 is carried out from the opening 39 together with the mounting plate 24.

As described above, in the above embodiment, the iron plate
A clamp lower portion 18 located slightly below the upper surface of the table 5 and a slightly upper portion above the upper surface of the moving table 5 at the front end side in the carrying direction of the iron plate 23 by the transport rollers 7 in the moving table 5 of 23. By providing the clamp body 14 including the clamp upper portion 19, the mounting plate 24 can be securely clamped and fixed. In addition, the lower portion of the clamp 18 can be reliably operated because the lower surface thereof can be automatically brought into contact with the mounting plate 24 by pressing the mounting plate 24 against the stopper 22.

Further, since the conveyance guide rollers 25 are provided on both sides of the table 5, when the loading plate 24 is carried in and out together with the iron plate 23, the placing plate 24 can be given directionality. Reliable operation becomes possible. In addition, since the transfer guide roller 25 is provided so as to be able to undulate, the irradiation unit 1 does not hit the transfer guide roller 25 at the time of laser processing, and the processing of the edge of the iron plate 23 and the like can be performed with confidence. be able to.

Further, in the above embodiment, the table 5
Can be carried in and out from the table 5 side, that is, it can be carried in and out from the opening 39 of the cover 38, so that dust during laser processing does not scatter outside and is sanitary. Environment can be created.

The present invention is not limited to the above-described embodiment. For example, as shown in FIG.
And various modifications are possible, such as mounting the mounting plate 24 on the large diameter portion 7A. The upper and lower clamps may be operated by an air cylinder, a hydraulic cylinder, an electromagnet, or the like connected to each rod. Further, the drive source of the guide roller may be a hydraulic cylinder or an electromagnetic valve.

[0019]

[Effect of the invention] This invention is to be placed and an upper frame provided with an irradiation portion of the laser beam, the workpiece juxtaposed a plurality of conveying rollers on the upper surface with provided opposite to the irradiation unit a table for the workpiece movement, a clamp member provided on the end side of the table carrying forward of the workpiece by the conveying roller, perpendicular to the loading direction of the workpiece by the transporting rollers And a roller for guiding the workpiece provided on both sides in the direction, wherein the roller for guiding the transport is provided so as to be able to undulate via a rotary drive unit. Workpiece can be fixed, workpiece can be loaded,
The workpiece can be transported in one direction by the transport guide rollers when unloading, and the transport guide rollers do not interfere with the laser processing.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment.

FIG. 2 is a plan sectional view showing the first embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a side view of a main part of the transport guide roller according to the first embodiment in a vertical state.

FIG. 5 is a side view illustrating a state in which a conveyance guide roller according to the first embodiment is inclined.

FIG. 6 is a partially cutaway plan view of FIG. 4;

FIG. 7 is a perspective view showing the first embodiment.

FIG. 8 is a sectional view around a stopper showing the first embodiment.

FIG. 9 is a plan view of the clamp body showing the first embodiment.

FIG. 10 is a front view around a rotation axis showing the first embodiment.

FIG. 11 is a cross-sectional view showing a first embodiment before being fixed by a clamp body.

FIG. 12 is a cross-sectional view after fixing by a clamp body according to the first embodiment.

FIG. 13 is a sectional view showing a second embodiment.

[Description of Signs] 1 Irradiation unit 3 Portal frame (upper frame) 5 Table 7 Transport roller 14 Clamp body 23 Iron plate (workpiece) 25 Transport guide roller 29 Air cylinder (Rotary drive unit)

Claims (1)

(57) [Scope of request for utility model registration] 1. A upper frame provided with an irradiation portion of the laser beam, the pressure for placing the workpiece juxtaposed a plurality of conveying rollers on the upper surface with provided opposite to the irradiation unit
A table of factory object for movement, a clamp member provided on the end side of the table carrying forward of the workpiece by the conveying roller, perpendicular to the loading direction of the workpiece by the transporting rollers And a roller for guiding the workpiece provided on both sides in the direction, wherein the roller for guiding the transport is provided so as to be able to undulate via a rotation drive unit.