JPH0394990A - Conveyor type working table of laser cutting machine - Google Patents

Abstract

PURPOSE:To reduce the cutting cost by constituting an area of a perforated slat conveyor of each stage of carrying-in, cutting and carrying-out, and providing a lifting means for raising an object to be worked from an injection port with needle pins on the cutting stage. CONSTITUTION:In a laser beam machine 1, an object 2 to be worked is brought to laser cutting by being carried by a conveyor 3. Therefore, a perforated slat conveyor 3 is used as the conveyor 3. Also, its area is constituted of a carrying-in stage 3-1, a cutting stage 3-2, and a carrying-out stage 3-3. In the cutting stage 3-1, a lifting means for raising the object 2 to be worked from an exhaust port 7 of the perforated conveyor 3 with needle pins 10 is provided. In such a way, the operation of the laser beam machine 1 can be raised remarkably.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a conveyor processing table for efficiently cutting and transporting workpieces on a conveyor with a laser beam.

(Prior art) The machining table used in conventional laser processing machines is either a Talemban type or a machining table in which the workpiece is placed on the machining table and then cut by moving the machining table in the X-Y direction. There were three methods: one in which the laser processing machine moves in the X direction and the Y direction to cut, and the other in which the processing table is fixed and the laser processing machine moves in the X-Y direction to cut. After a series of cutting operations have been completed, the products and remaining materials on the processing table are taken out manually or by a separately provided automatic removal device such as a robot.

<Problems to be solved by the invention> As mentioned above, since the workpiece is placed in a fixed position on the same processing table, laser processed, and sorted and carried out, the laser processing time is extremely short compared to the previous work. This was a factor in reducing the operating rate of processing machines.

<Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention divides the area of the perforated slat conveyor into work areas of a carry-in stage, a cutting stage, and a carry-out stage, so that each work area can be operated independently. In the cutting stage, a detection pin is made to protrude from the bottom of the perforated slat conveyor to push up the workpiece and create a space for the cutting slag and smoke generated during cutting to prevent damage to the perforated slat conveyor. This has made it possible to perform laser cutting on the cutting stage.

<Operation> When the perforated slat conveyor on which the workpiece is placed stops at a predetermined position in the cutting stage area, the slat pin stand at the bottom of the cutting stage area rises, and a large number of slat pins are inserted into the orifice holes of the perforated slat conveyor. A predetermined space is provided in which the workpiece can be pushed up and cut. After the laser processing machine finishes cutting, the Kenzan pin stand descends and the workpiece is placed on the perforated slat conveyor! ! It is then moved to the unloading stage for the next process.

Examples of the invention FIG. 1 is a layout diagram showing an embodiment of the present invention.

FIG. 2 is a side view showing an embodiment of the present invention.

FIG. 3 is a perspective view of the perforated slat conveyor apparatus of the present invention.

1 is a laser processing machine, 2 is a workpiece, 3-1, 32,
3-3 is a perforated slat conveyor 3 having a carrying-in stage, a cutting stage, and a carrying-out stage, respectively. The workpiece 2 placed on the carry-in stage 3-1 is conveyed to the cutting stage 3-2 by the perforated slat conveyor 3. The next process will be explained with reference to the cross-sectional perspective view of the cutting stage shown in FIG. 4 and the detailed view of the perforated slat 1i plate shown in FIG. It is stopped at a position where the tsurugisan pin 10 on the tsurugisan pin stand 8 located at 1 is defeated.

More specifically, when the workpiece 3-1 is moved from the carry-in stage to the cutting stage 3-2, the phototube device 5 in front of the cutting stage 3-2 is shielded from light by the workpiece 2, and the workpiece When the object completely moves to the cutting stage 32, the light is unblocked, and when it reaches the nozzle hole 7, a lighting signal is emitted. Although not shown in the drawing, the driving servo motor of the perforated slat conveyor 3 is controlled by the signals during light shielding and lighting, as described above, so that the sword pin 10 and the orifice hole 7 of the perforated slant conveyor 3 are aligned. It can be stopped in position.

Next, the lifting cylinder 9 pushes up the sword pin stand 8, and the sword pin 10 passes through the nozzle hole 7, pushes up the workpiece 2 that was on the perforated slat conveyor 3, and moves it into the cutting space 11.
make. At this time, the slag and smoke discharged during cutting by the laser processing machine are discharged outdoors by the smoke exhaust device 4. In addition, the nozzle hole 7 of the perforated slat steel plate 6 is raised from the surrounding area like a nozzle, and the hole diameter is slightly larger than the detection pin 10, so care has been taken to prevent slag or smoke from escaping through the gap. There is.

The workpiece 2 on the discharge stage 3-3 is transported to a predetermined location manually or by an automatic transport device, and the remaining materials, slag, etc. are automatically transported by the movement of the perforated slat conveyor 3.

<Effects> In the present invention, the carrying-in stage, cutting stage, and carrying-out stage are separated on a series of conveyors, so each stage can perform work independently, so the operation of the laser processing machine increases rapidly and the cutting It has become possible to significantly reduce costs.

[Brief explanation of drawings]

Fig. 1 Layout diagram showing an embodiment of the invention Fig. 2 A side view showing an embodiment of the invention Fig. 3 A perspective view of a perforated slat conveyor of the invention A cross-sectional perspective view of a cutting stage of the invention Perspective view of a slat steel plate Perspective view showing the mounting position of the smoke exhaust hood of the present invention Laser processing machine 2. Workpiece perforated slat conveyor smoke exhaust hood 5. Photocell device perforated slat steel plate 7. Fountain hole Kenzan pin stand 9. Lifting cylinder sword pin
11. Cutting space Fig. 4 Fig. 5 Fig. 6

Claims (4)

[Claims] (1) In a laser processing machine that laser-cuts a workpiece by conveying it on a conveyor, the conveyor is a perforated slat conveyor, and its area is composed of a carry-in stage, a cutting stage, and a carry-out stage, and the cutting stage 1 is a conveyor-type processing table for a laser cutting machine, characterized by having a lifting means for lifting a workpiece from a nozzle hole of a perforated slat conveyor using a sword pin. (2) A conveyor-type processing table for a laser cutting machine according to claim (1), wherein the orifice of the perforated slat conveyor is chevron-shaped and protrudes from the periphery. (3) Claim (2) characterized in that the hole in the perforated slat conveyor is used as a signal for a phototube device to control the stop position of the perforated slat conveyor.
Conveyor-type processing table for the laser cutting machine described in Section 2. (4) At the cutting stage, a smoke exhaust hood with a raised pin length is installed on both sides of the perforated conveyor at a position where the bottom plate of the smoke exhaust hood is flush with the surface of the perforated slat conveyor. A conveyor-type processing table for a laser cutting machine according to claim (3).