JPH0543991Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) This invention relates to an improvement of a cutting member discharge device of a laser processing machine.

(Prior art) Conventionally, in thermal cutting equipment such as a laser processing machine, processed workpieces that have been subjected to a predetermined thermal cutting process are placed into a storage box provided outside the machine using a tiltable work shooter. It is discharged and treated.

(Problem to be solved by the invention) In the above-mentioned work shooter, the cooling water used during laser processing may cause the workpiece to stick to the top surface of the work shooter, or the dust generated during laser processing may adhere to the top surface of the work shooter. Frictional resistance was generated on the workpiece, and the workpiece could not be completely ejected to the storage box outside the machine.

For this reason, unmanned operation is not possible, and constant human monitoring is required, resulting in a problem that productivity cannot be improved.

The purpose of this invention is to hold the work on the washer in line contact in order to improve the above problems.
An object of the present invention is to provide a cutting member discharging device for a laser processing machine that can reliably discharge a workpiece to the outside of the machine by jetting compressed air.

[Structure of the invention] (Means for solving the problem) In order to achieve the above object, this invention provides a workpiece shutter that can be tilted freely so that it is flush with the worktable in the workpiece processing section of a laser processing machine. ,
A chute member having a plurality of corrugated portions perpendicular to the cutting member discharging direction is provided on the upper surface of the work shooter, and a plurality of compressed air jet ports are provided in the corrugated portion of the chute member from inside toward the cutting member discharging direction. It was configured by setting up.

(Function) By employing the cut member ejection device of the laser processing machine of this invention, the contact portion between the work and the chute member becomes a line contact, improving slipperiness, and
By blowing out compressed air from the compressed air outlet provided in the shute member, the work is sent out in the discharge direction, so that the work can be reliably discharged from the machine without being affected by, for example, cooling water.

(Example) Hereinafter, an example of this invention will be described in detail based on the drawings.

Referring to FIGS. 2 and 3, these figures conceptually illustrate the overall configuration of the dust collector of the laser processing machine, and the work table 3 of the laser processing machine 1 is
(partially not shown) is provided with a tiltable work shooter 5 according to this invention.

In the work shooter 5, a square dust collecting pipe 9 which is opened upward and located directly below the processing head 7 (partially not shown) of the laser processing machine 1 is attached to a processing part pedestal 11 provided in the work shooter 5. It is installed vertically on the underside of the .

The lower end of the dust collecting pipe 9 is tightly inserted into an outer frame 15 provided on the machine base 13 of the laser processing machine 1, and a scrap box 1 is placed in the lower part of this outer frame 15.
7 is provided so that it can be put in and taken out freely. Further, from the outer frame 15, the suction duct 2 passes through the scrap box insertion part 19 in which a part of the machine base 13 is sealed.
A suction device 23 is provided through 1 to suck dust and the like generated during processing and exhaust it to the outside of the machine.

The work shooter 5 has a link 29 rotatably provided via a pin 27 to a bracket 25 erected on the machine base 13, and one end of the link 29 is connected via a pin 31 to a bracket 33 vertically attached to the work shooter 5. Connected for free rotation. Furthermore, a piston rod 39 of a hydraulically operated cylinder 37 is rotatably engaged with a bracket 35 that is vertically installed on the lower surface of the tip side (left side in FIG. This allows the work shooter 5 to freely tilt.

With the above configuration, the operation is such that by operating the cylinder 37, at the upper limit of the cylinder 37, the work shooter 5 is held at a position that coincides with the pass line shown by line A-A, and is placed on the work shooter 5. The processed workpiece W is then processed.

A predetermined cutting process is performed on the workpiece W, and when the process is completed, the cylinder 37 is lowered.

The work shooter 5 has a pin 2 which is the first fulcrum P.
7 and the pin 31 and link 29 which are the second fulcrum Q
As the descent progresses, the robot tilts about the first fulcrum P and stops at position B shown in FIG. 2. By this tilting, the machined workpiece W is ejected from the machine, and by reversing the above-mentioned operation, the workpiece shooter 5 is returned to its original horizontal position, and the next processing step is started.

Along with the movement of the work shooter 5 described above, the dust collection pipe 9 fixed to the work shooter 5
moves to position C shown in FIG. At this time, the lid 41, which is a part of the outer frame 15, is pushed by the tip of the dust collection pipe 9 and opened using the shaft 45 of the bearing 43 provided on the outer wall of the outer frame 15 as a pivot point. Since the lid 41 is always urged in the closing direction by the spring 47, the lid 41 also returns to its original position when the work shooter 5 returns to the horizontal state. At this time, although the joint between the lid 41 and the outer frame 15 is omitted from illustration to ensure a tight connection, it goes without saying that a sealing member or the like is provided.

Incidentally, reference numeral 49 denotes a free bearing, which serves to smooth the movement of the workpiece W, and a carbon graphite material 51 is laid at the bottom of the scrap box 17. The carbon graphite material 51 may be directly irradiated with the laser beam irradiated from the processing head 7 to the bottom of the scrap box 17, but since the carbon graphite material 51 is provided in this area, it can be easily scraped. The box 17 is not damaged by the laser beam and serves to prevent damage.

The configuration of the work computer 5 will be explained in more detail.

Referring to FIG. 1, the work shooter 5 includes a table frame 53 to which a processing section pedestal 11 is fixed, which is provided directly below the processing head 7 (partially shown).
The chute member 55 has a corrugated portion formed on the table frame 53 in a direction perpendicular to the discharge direction of the workpiece W (the direction of the arrow X in the figure).

Inside the corrugated portion 57 of the chute member 55,
A pipe 59 for sending compressed air is inserted, and although not shown, the pipe 59 is connected to a compressed air generation source outside the machine.
It is in communication with. The pipe 59 and the corrugated portion 57 of the chute member 55 are provided with a plurality of jet ports 6 for jetting out a plurality of compressed air in the discharge direction of the workpiece W.
1 and 63 are provided.

With the above configuration, the operation of the work shooter 5 is as described above, and the cylinder 3 (not shown) operates as described above.
7, the work shooter 5, which is tiltably supported on the machine stand 13 via a link 29, is tilted.

The workpiece W has a corrugated portion 5 which is a chute member 55.
Since the workpiece W is placed in line contact with the workpiece 7, the workpiece W has little frictional resistance due to the tilting of the workpiece shooter 5, is not affected by the cooling water used during machining, and is smoothly discharged on the way. It never stops. Further, when discharging the workpiece W, compressed air is sent, and the compressed air is blown out in the direction indicated by the Y direction in the figure, thereby floating the workpiece W and enhancing the sending and discharging effect.

Therefore, automatic operation is possible and productivity can be improved.

In this embodiment, the pipe 59 is inserted into the corrugated portion 57 of the chute member 55, but the corrugated portion 57 is provided in a sealed manner without using the pipe 59, and the corrugated portion 57 is directly inserted into the corrugated portion 57. Of course, a method of sending compressed air may also be used, and it is of course possible to make various changes without departing from the gist of the present invention without being limited to the embodiments described above.

[Effects of the invention] As can be understood from the above description of the embodiment, according to this invention, the upper surface of the workpiece has a plurality of wave shapes, and the contact with the workpiece is a line contact. The structure is designed to help feed the workpiece. Therefore, when discharging the work, the work can be reliably discharged without being affected by, for example, the cooling water used during machining, so that automatic operation is possible and productivity can be improved without requiring human labor.

[Brief explanation of the drawing]

FIG. 1 is a front view including a partial cross section showing the main parts of this invention, and FIG. 2 is a front view showing a work station of a laser processing machine according to an embodiment of this invention.
FIG. 3 is a sectional view taken along the - line in FIG. 2. 1... Laser processing machine, 3... Work table,
5...Work shooter, 55...Shute member,
57...Corrugated part, 59...Pipe, 61, 63...
... spout.

Claims (1)

[Scope of utility model registration request] The workpiece processing section of the laser processing machine is provided with a workpiece shutter that can freely tilt so as to be flush with the worktable, and a chute member that has a plurality of corrugated portions orthogonal to the cutting material ejection direction is provided on the upper surface of the workpiece shooter. A cutting member discharging device for a laser processing machine, characterized in that a plurality of compressed air outlets are provided in the corrugated portion of the chute member toward the cutting member discharging direction from the inside.