JP2001009584A - Laser processing system, and deburring tool attached to it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laser processing system capable of carrying out deburring operation easily in a short time with a simple constitution. SOLUTION: In this laser processing system, a work 18 being laser processed with a laser processing machine is transferred to a deburring device arrange adjacent to the laser processing machine. The deburring device is equipped with a deburring tool 31, wherein plural metallic wires 33 are swollen and bent like an arc around one axial line of an axis part 32 and both ends are bound. The deburring tool 31 is inserted in the work 18 and rotated, and the periphery of the metallic wire 33 is brought into contact with flashes 18b so as to remove the flashes 18b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser processing system provided with a deburring device for removing burrs formed in a laser processing portion of a work, and a deburring tool attached to the system.

[0002]

2. Description of the Related Art Usually, when a work is cut using a laser processing machine, burrs may be formed on the back surface of the processed portion of the work. In particular, when the work has a curvature such as a cylindrical shape, the burrs tend to be formed more than in the case of a flat work. Therefore, it is necessary to perform the processing by inclining the nozzle so that the laser beam is always perpendicular to the workpiece. In this case, the processing head including the nozzle has at least a two-axis configuration.

Conventionally, for example, as shown in FIG. 5, a wire brush 92 is inserted into a processed work 91 and rotated, or as shown in FIG. The burr 91a was scraped off by inserting a file 93 into the inside 91.

[0004]

However, the brushes 92 cannot be replaced in a short period of time because the fluffs of the brushes 92 are not able to exhibit their functions satisfactorily due to their fuzz falling down as they are used. Required. In addition, automation cannot be performed, and in general, a burr 91a is manually formed using a file 93.
This method is complicated, and there is a problem that the operation time is long.

The present invention has been made by paying attention to such problems existing in the prior art. It is an object of the present invention to provide a laser processing system capable of performing a deburring operation easily and in a short time with a simple configuration, and a deburring tool to be assembled therewith.

[0006]

In order to achieve the above object, the invention of a laser processing system according to claim 1 is as follows.
After performing laser processing on a work by a laser processing machine, burrs formed on the work are removed by a burr removing device.

According to a second aspect of the present invention, there is provided a laser processing system according to the first aspect, wherein a plurality of metal wires are bulged and curved in an arc around one axis as the burr removing device. And a burr removing tool configured by bundling both ends thereof, which is rotated around a single axis by a rotary driving device to remove the burr.

According to a third aspect of the present invention, in the laser processing system according to the second aspect, the metal wires are arranged at equal intervals. According to a fourth aspect of the present invention, in the laser processing system according to the second or third aspect, a plurality of edges are formed on an outer periphery of the metal wire.

According to a fifth aspect of the invention, there is provided a laser processing system according to the fourth aspect, wherein a plurality of edges are formed by spiral grooves. According to a sixth aspect of the present invention, in the laser processing system according to any one of the second to fifth aspects,
The deburring tool is movable between a processing position and a standby position.

According to a seventh aspect of the present invention, in the laser processing system according to any one of the first to sixth aspects, the work is a pipe. The invention of the deburring tool according to claim 8 is a laser processing system according to any one of claims 1 to 7, for removing burrs formed on the work when performing laser processing on the work. Is to be assembled.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, in the processing unit 11 of the laser processing system of this embodiment, a column 14 of a laser processing machine 13 is erected on the right side of a bed 12, and a saddle 15 is provided on a front surface of the column 14. It is supported so as to be able to reciprocate in the X and Y directions. A processing head 16 is vertically supported on the lower surface of the saddle 15 so as to face downward, and can reciprocate with respect to the saddle 15 in the Z direction. The processing head 16 is supplied with a laser beam from a laser oscillator (not shown), and the laser beam is irradiated downward from the tip of the processing head 16.

A plurality of tables 17 are provided on the bed 12, and a pair of circular pipe-shaped works 18 conveyed from a stocker (not shown) are detachably held on each table 17. ing. These works 18 are arranged below the processing head 16 while being mounted and held on a table 17, and the processing head 16 irradiates the peripheral surface of the work 18 with a laser beam downward to cut the work 18. It is to be processed. The processed work 18 is conveyed from the processing unit 11 to the burr removal unit 21 adjacent to the laser processing machine 13 on the bed 12, and the burr removal device 22 removes the burr formed during the cutting process. ing. The work 18 from which burrs have been removed is transported from above the bed 12 by a manipulator 19 disposed on the left side of the bed 12.

[0013] As shown in FIG.
, A rotary drive device 24 is arranged on the bed 12 via a pair of guide rails 23 so as to be able to approach and separate from the table 17. On both sides of the front surface of the rotation drive device 24, a pair of rotation bases 26 are disposed such that their tips project toward the two works 18 held by fixtures (not shown). Each rotation base 26 can be rotated by a motor (not shown) located in the rotation drive device 24.

Each rotating base 26 has a deburring tool 3
1 is connected. The deburring tool 31 has a shaft portion 32 having a round bar shape whose base end is connected to the rotating base 26.
And a plurality of metal wires 33 attached from the intermediate portion to the tip of the shaft portion 32. A plurality of these metal wires 33 are arranged at a certain angle in a state of being bulged and curved in an arc around one axis with respect to the shaft portion 32 (about 6 to 20). And each metal wire 3
Numeral 3 is a rugby ball having a large diameter at the center and small diameters at both ends as a whole by being bound by a band 36 to the outer periphery of the shaft 32 at both ends.

The rotary driving device 24 is moved forward and backward by a cylinder 27 fixed on the bed 12. That is, the deburring tool 31 can be moved between the processing position and the standby position by the expansion and contraction operation of the cylinder 27.

As shown in FIG. 3, when the deburring tool 31 inserted into the work 18 rotates, the outer periphery of the metal wire 33 is formed on the burr 18b on the back surface of the processing portion 18a formed by the laser processing machine 13. Sliding contact. As shown in FIG. 4, a spiral groove 34 is formed in the outer periphery of the metal wire 33, and the burr 18b is cut and removed by the edge 35 of the spiral groove 34.

Next, the operation of the laser processing system configured as described above will be described. As shown in FIG. 1, when a through hole 18a is formed in the work 18 in the laser processing system, first, the work 18 transported from the stocker to the processing unit 11 is detachably held on the table 17 on the bed 12. You. Next, the work 18 is transported by the manipulator 19 onto the table 17 in the processing section 11 below the processing head 16 of the laser processing machine 13. In this state, a laser beam is emitted downward from the processing head 16 to the peripheral surface of the work 18, and the processing head 16 is moved in the three-dimensional directions of X, Y, and Z to form the work 18 into a desired shape. The cutting process is performed so that

As shown in FIG. 2, a laser-processed work 18 is subjected to a burr removing unit 21 by a manipulator 19.
Is conveyed onto the table 17. Next, after the work 18 is pressed onto the table 17 by a pressing device (not shown), the rotary drive device 24 is moved to the processing position by the cylinder 27 as shown by a two-dot chain line in the drawing, and the deburring tool 31 is moved to the work position. 18 is inserted. At this time,
The outer periphery of the metal wire 33 of the deburring tool 31 is the work 1
The workpiece 18 is deformed along the shape of the inner peripheral surface so as to contact the inner peripheral surface.

Subsequently, the deburring tool 31 inserted into the work 18 is rotated by a motor in the rotary drive 24 for a predetermined time. Then, as shown in FIG.
8, an edge 35 formed on the outer periphery of each metal wire 33 gradually cuts the burr 18 b, and
8b is removed. At this time, the edge 35 is
Since only the portion protruding from the inner peripheral surface of the work 18 is cut, the sliding contact portion other than such a protruding portion hardly gets scratched. Then, after the burr 18b is removed, the rotary drive 24 and the deburring tool 31 are moved to the standby position again by the contraction of the cylinder 27, and the work 18 is lifted from the table 17 by the manipulator 19, and the next process is performed. Transported to

The above-described laser processing system is obtained by simply disposing the burr removing device 22 adjacent to the laser processing machine 13, and the configuration is simplified. In addition, the laser processing machine 13
Since the entire process from the cutting of the work 18 by the burrs to the removal of the burrs 18b by the burr removing device 22 is automated, the cutting of the work 18 can be performed quickly and easily.

Further, in the deburring tool 31 provided in the deburring unit 21, both ends of the metal wire 33
Since the metal wire 33 is held by the shaft portion 32 due to 6, the stress applied when it falls down due to cutting or the like is received by the entire metal wire 33, plastic deformation is difficult. The deburring tool 31 cuts and removes the burr 18b with a plurality of edges 35 formed on the outer periphery of the metal wire 33, and is used for a long time because it has little wear and the like and has high durability.

The effects exhibited by the above embodiment will be described below. In the laser processing system of this embodiment, the burr removing unit 21 is provided so as to be adjacent to the processing unit 11, and the burr removing device 22 of the burr removing unit 21 includes a burr removing tool 31. This deburring tool 31 is a shaft part 3
It has a simple configuration in which a plurality of metal wires 33 bulging and curving in an arc shape are arranged around one axis of two, and both ends are bundled. Further, since the processes from the cutting of the work 18 by the laser beam machine 13 to the removal of the burr 18b by the burr removing device 22 are all automated, the burr removing operation can be performed easily and in a short time.

A plurality of metal wires 3 of the deburring tool 31
3 are arranged at equal intervals. Therefore, the deburring tool 3
1 can be rotated stably, and the burr 1
8b can be evenly removed.

The plurality of edges 35 are formed by spiral grooves 34 recessed in the outer periphery of the metal wire 33, and the edges 35 are formed on almost the entire outer periphery of the metal wire 33.
The edge 35 is almost certainly slid on the burr 18b, and the burr 18b can be removed more effectively. In addition, even when the workpiece 18 is slid on the outer periphery of the metal wire 33 except for the edge 35, it is possible to prevent the sliding contact point from being damaged.

Since the deburring tool 31 is configured to be movable between the processing position and the standby position by the cylinder 27 provided in the deburring device 22, the work 18
The deburring operation can be performed in a shorter time without transporting the burrs from the fixed position.

Even when the work 18 has a circular pipe shape, the metal wire 33 of the deburring tool 31 is deformed in accordance with the shape of the inner peripheral surface, so that the burr 18b can be removed satisfactorily. it can.

Since both ends of the metal wire 33 are held by the shaft portion 32 by the band 36, when the metal wire 33 is crushed by rotation or the like, plastic stress can be suppressed by receiving the applied stress over the entire metal wire 33. , High durability can be maintained.

The present embodiment can be embodied with the following modifications. The work 18 is not limited to a cylindrical circular pipe, for example, a polygonal cylinder such as a square cylinder, a hexagonal cylinder, an octagonal cylinder, a flat plate, and a middle diameter whose end is reduced or enlarged. It may be in a shape or the like. Even when the work 18 has such a shape, burrs formed inside can be removed satisfactorily.

A plurality of edges 35 are formed on the outer periphery of the metal wire 33 by providing, for example, a plurality of convex portions or concave portions, spiral ridges, linear ridges or concave grooves. You may. Even with such a configuration, burrs can be satisfactorily removed.

The processing section 11 and the burr removing section 21 are not limited to being arranged at a predetermined interval on the bed 12. For example, a burr removing device 22 is provided in the processing section 11 of the bed 12 to perform processing. By removing the burr 18b of the work 18 on the table 17 of the section 11, the processing section 11 may be configured to also serve as the burr removing section 21. In the case of such a configuration, the work 18 is
The process of transporting the burrs to the burrs 21 can be omitted, and the working time can be reduced.

The deburring tool 31 is not limited to being provided in the deburring device 22.
The operator may carry out the deburring operation by holding only 1 by hand. In the case of such a configuration, compared with the conventional brush and file, the deburring tool 3 having good workability and high durability is provided.
1 can be provided.

[0032]

As described above in detail, according to the present invention, the following effects can be obtained. According to the laser processing system of the first aspect of the present invention, the deburring device adjacent to the laser processing machine performs the deburring of the work, so that the deburring operation can be performed easily and in a short time.

According to the laser processing system of the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the deburring tool provided in the deburring apparatus expands in an arc around one axis. Since a plurality of curved metal wires are arranged and both ends are bundled, the burr removing operation can be performed easily and in a short time with a simple configuration.

According to the laser processing system of the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, since the metal wires are arranged at equal intervals, the deburring tool can be stably rotated. And burrs can be evenly removed.

According to the laser processing system of the fourth aspect of the present invention, in addition to the effects of the second or third aspect of the present invention, since a plurality of edges are formed on the outer periphery of the metal wire, the burr is formed. Can be effectively removed.

According to the laser processing system of the fifth aspect of the present invention, in addition to the effect of the fourth aspect of the present invention, since a plurality of edges are formed by spiral grooves, burrs are more effectively removed. In addition to the above, it is possible to reduce scratches at locations other than burrs.

According to the laser processing system of the invention described in claim 6, in addition to the effect of the invention described in any one of claims 2 to 5, the deburring tool is configured to be movable. Burr removal operation can be performed in a shorter time.

According to the laser processing system of the invention described in claim 7, in addition to the effect of the invention described in any one of claims 1 to 6, even if the work is a pipe, the work of metal wire can be performed. Burrs can be satisfactorily removed by deformation according to the shape of the inner peripheral surface.

According to the deburring tool of the invention described in claim 8, it is possible to provide a deburring tool with good workability and high durability.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a laser processing system according to an embodiment.

FIG. 2 is a perspective view showing a state in which the burr removing device is viewed from above.

FIG. 3 is a cross-sectional view showing a state where burrs are removed by a deburring tool.

FIG. 4 is an enlarged front view showing a part of a metal wire.

FIG. 5 is a cross-sectional view showing a state in which burrs are removed by a conventional brush.

FIG. 6 is a cross-sectional view showing a state in which burrs are removed by a conventional file.

[Explanation of symbols]

13 ... laser processing machine, 18 ... work, 18b ... burr, 2
2: Deburring device, 31: Deburring tool, 33: metal wire, 34: spiral groove, 35: edge.

Claims (8)

[Claims] 1. A laser processing system that performs laser processing on a work by a laser processing machine and then removes burrs formed on the work by a burr removing device. 2. The burr removing device comprises a plurality of metal wires arranged in a state of being bulged and curved in an arc shape around one axis, and configured by bundling both ends thereof, and a uniaxial line by a rotation driving device. The laser processing system according to claim 1, further comprising a deburring tool that rotates around the surface to remove burrs. 3. The laser processing system according to claim 2, wherein the metal wires are arranged at equal intervals. 4. The laser processing system according to claim 2, wherein a plurality of edges are formed on an outer periphery of the metal wire. 5. The laser processing system according to claim 4, wherein the plurality of edges are formed by spiral grooves. 6. The laser processing system according to claim 2, wherein the deburring device enables the deburring tool to move between a processing position and a standby position. 7. The laser processing system according to claim 1, wherein the workpiece is a pipe. 8. A deburring tool to be mounted on a laser processing system according to claim 1, for removing burrs formed on the workpiece when performing laser processing on the workpiece.