JPH0321830Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to the processing table of a laser processing machine.
More specifically, the present invention relates to a processing table for a laser processing machine in which a workpiece can be easily carried onto or removed from the processing table using a conveying means such as a ball.

"Prior Art" Generally, in a laser processing machine, a plate material as a workpiece is placed on a grid-like or needle-like support member provided on a processing table, and laser processing is performed. Therefore, it is necessary to carry in and place the workpiece on the support member, but this has the drawback of requiring a large amount of labor, especially when the workpiece is large. Further, after punching out a product having a desired shape from a plate material as a workpiece by laser processing, it also requires a great deal of effort to transport the remaining plate material.

In order to improve such drawbacks, conventionally, a rotating member is rotatably supported on the processing table, a ball for conveying the workpiece is provided on the rotating member, and a pinion connected to the rotating member is connected to the processing table. Engage the slideable racks on the
Furthermore, a cylinder device provided on the processing table is interlocked with this rack, and the cylinder device rotates the rotating member, so that the ball provided on the rotating member is placed in a protruding position above the supporting member and in a retracted position below. A processing table for a laser processing machine that is rotatably moved has been proposed. (Jitkai Show 59
−124679).

``Problems to be Solved by the Invention'' By the way, in conventional machining tables of this type, it is generally necessary to increase the size of the cylinder device as the workpiece becomes heavier. However, in a laser processing machine in which the processing table is moved relative to the frame to perform laser processing, it is necessary to provide the cylinder device on the processing table, so if the cylinder device is increased in size as described above, When the diameter of the cylinder device is increased, the machining space is reduced accordingly, and it is necessary to increase the size of the machining table in order to secure a predetermined machining space.

``Means for Solving the Problems'' In view of such circumstances, the present invention has been developed by arranging cylinder devices facing each other at both ends of the rack in the processing table of the laser processing machine having the above-mentioned configuration. The devices work together to drive the racks in the same direction.

"Operation" According to such a configuration, high output can be achieved by cooperating two small cylinder devices with small diameters placed opposite each other at both ends of the rack, without using a large cylinder device with a large diameter. This makes it possible to assemble these cylinder devices to the processing table without increasing the size of the processing table, thus preventing the processing table from becoming larger even if the workpiece becomes heavy. can.

"Example" The present invention will be explained below with reference to the illustrated example.
In Figure 1, the processing table 1 of the laser processing machine
is a rectangular outer frame member 2 forming the outer frame.
, a lattice-like member 3 integrally attached to this outer frame member 2, and a large number of needle-like support members 4 attached to this lattice-like member 3 to support a workpiece such as a steel plate (not shown). .

A laser nozzle (not shown) for irradiating a laser beam is arranged above the processing table 1.
The laser nozzle is fixed to a frame (not shown) or is moved back and forth in one direction. When the laser nozzle is fixed to the frame, the processing table 1 is provided so as to be movable in two orthogonal directions within a horizontal plane, and the laser nozzle is moved back and forth in one direction by the frame. In this case, the processing table 1 is provided so as to be movable in one direction orthogonal to the moving direction of the laser nozzle.

On the processing table 1, a plurality of rotating members 5 are disposed parallel to the long sides of the rectangular outer frame member 2 and are rotatably supported.
A plurality of balls 6 are provided at required intervals on the surface of the machine as a conveyance means for conveying the workpiece. When each ball 6 is directed upward as the rotating member 5 rotates, it assumes a protruding position that protrudes upward from the top of the needle-shaped support member 4, and in this state, the workpiece can be transported. ing.

On the other hand, rotate the rotating member 5 by 180 degrees from the above rotation angle position.
When the balls 6 are rotated once and placed in the retracted position facing downward, not only the balls 6 but also the back surface of the rotating member 5 opposite to the surface on which the balls 6 are provided are also attached to the needle-shaped support member 4. positioned below the top of the
The workpiece on the ball 6 can be supported by the needle-like support member 4. In this state, the ball 6 is shielded from the laser beam irradiation by the rotating member 5 to prevent damage caused by the laser beam.

Further, the surface of the rotating member 5 on which the balls 6 are provided also serves as a guide for the workpiece, and especially when the workpiece is made of a thin steel plate, the tip of the steel plate will not fall under its own weight. is supported on the surface of the rotating member 5 to prevent its tip from getting caught on the needle-shaped support member 4. The ball 6 is provided to slightly protrude from the surface of the rotating member 5, so that the tip of the steel plate can smoothly move from the surface of the rotating member 5 onto the ball 6. In addition, when processing a large number of thin steel plates, contact between the steel plate and the rotating member 5 can be prevented by setting the distance between the balls 6 narrow in advance.

A pinion 7 is attached to one side of each rotating member 5, and each pinion 7 is meshed with a rack 8, respectively. This rack 8 is slidably provided on the short side of the outer frame member 2,
Roller 9
(Fig. 2)
Both ends of the cylinder are connected to the cylinder device 10, respectively.

As shown in FIGS. 2 and 3, each cylinder device 10 is attached at its end to the outer frame member 2 via a bracket 11 and a pin 12, and a piston rod 13 of the cylinder device 10 is attached to the outer frame member 2 through a bracket 11 and a pin 12.
is connected to the rack 8. The cylinder devices 10, pinion 7, rack 8, rollers 9, etc. are housed within the short side of the outer frame member 2 to prevent dust.

According to the above configuration, when carrying in a workpiece, both cylinder devices 10 are operated simultaneously to move the rack 8 in one direction, and the rotating member 5 is moved through the pinion 7 that meshes with the rack 8. Rotate. As a result, if all the balls 6 provided on the rotating member 5 are directed upward, the workpiece can be easily carried in using the balls 6.
At this time, since ball 6 is used,
The workpiece can be moved not only in the transport direction but also in a direction perpendicular thereto, and therefore the workpiece can be easily positioned.

Once the workpiece has been positioned, the workpiece can be placed on the needle-like support member 4 by simultaneously operating the two cylinder devices 10 and directing all the balls 6 downward. Laser processing can be performed. After the laser processing is completed, if there is a workpiece remaining on the needle-like support member 4 that can be transported by the ball 6, the two cylinder devices 10 are operated simultaneously again to move the ball 6 upward. If a workpiece is placed on top of it, the workpiece can be easily carried out.

In this way, in this embodiment, since the two cylinder devices 10 are operated simultaneously, the diameter of each cylinder device 10 can be made smaller compared to the case where the necessary thrust is obtained from one cylinder device. If the diameter of each cylinder device 10 can be made small, the width W of the outer frame member 2 can be kept small, as shown in FIG. It becomes possible to raise and lower the workpiece.

In the above embodiment, since a large thrust is required especially when raising the ball 6, both cylinder devices 10 are operated together only in that case, and only one cylinder device 10 is operated when lowering the ball 6. You may also do so. Further, in the above embodiment, the ball 6 is used as the conveyance means, but a roller may be provided instead of the ball 6. In that case, each roller is linked to a motor, and the workpiece is processed by the roller without manual intervention. It may also be used to transport objects.

"Effect of the invention" As described above, according to the invention, high output can be obtained without increasing the size of the cylinder device, so even if the weight of the workpiece increases, the size of the processing table can be prevented. The effect of being able to do this is obtained.

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a sectional view taken along the - line in FIG. 1, and FIG. 3 is a sectional view taken along the - line in FIG. 2. 1... Processing table, 2... Outer frame member, 4...
needle-like support member, 5... rotating member, 6... ball,
7...Pinion, 8...Rack, 10...Cylinder device.

Claims (1)

[Claims for Utility Model Registration] A rotary member is rotatably supported on a processing table equipped with a support member that supports a workpiece, and
This rotating member is provided with a conveying means for conveying the workpiece, and a rack provided slidably on the processing table is engaged with a pinion connected to the rotating member, and a cylinder device provided on the processing table is linked to this rack. A processing table of a laser processing machine, wherein the rotating member is rotated by the cylinder device, and the conveying means provided on the rotating member is rotationally moved between a protruding position above the supporting member and a retracting position below. A processing table for a laser processing machine, characterized in that cylinder devices are disposed facing each other at both ends of the rack, and both cylinder devices work together to drive the rack in the same direction.