JP2020001057A - Laser processing machine - Google Patents

Abstract

To provide a laser processing machine that simplifies arrangements before laser processing even when dust of a particular metal and dust of other metals must be recovered separately.SOLUTION: One end of a first dust collection duct 67 is connected to the side of a first opening 37 of a dust box 35, and the other end of the first dust collection duct 67 is connected to the side of another first opening 59 of a dust collection device 49. One end of a second dust collection duct 69 is connected to the side of a second opening 39 of the dust box 35, and the other end of the second dust collection duct 69 is connected to the side of another second opening 61 of the dust collection device 49. A first switching member 71 swings in an opening and closing direction, thus switching states between a state where the inside of the first dust collection duct 67 is in communication with the inside of the dust box 35 through the first opening 37 and a state where the inside of the first dust collection duct is blocked off the inside of the dust box 35. A second switching member 75 swings in the opening and closing direction, thus switching states between a state where the inside of the second dust collection duct 69 is in communication with the inside of the dust box 35 through the second opening 39 and a state where the inside of the second dust collection duct is blocked off the inside of the dust box 35.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a laser processing machine that performs laser processing (laser cutting processing) on a work.

  The laser beam machine is provided with a dust collection system for collecting dust generated by laser machining. The configuration of the dust collection system will be briefly described as follows.

  A dust box for taking in dust is provided below the work table in the laser beam machine, and an opening is formed in a wall of the dust box. One end of a dust collection duct is connected to the opening side of the dust box, and a dust collection device that collects dust is connected to the other end of the dust collection duct. The inside of the dust collecting duct communicates with the inside of the dust box and the inside of the dust collecting device.

  As a prior art related to the present invention, there is one disclosed in Patent Document 1.

JP-A-10-27769

  By the way, in recent years, with the spread of fiber lasers, laser processing machines are often used for cutting aluminum workpieces. On the other hand, if aluminum dust and iron oxide dust are mixed in the dust collection duct, the risk of fire due to thermite reaction and the like increases, so that the aluminum dust is dusted by other metals (metals other than the specified metal). Need to be separated. Further, when performing laser processing of a work of a high-grade metal such as platinum, it is necessary to separate high-grade metal dust from other metal dust due to the scarcity of the high-grade metal. That is, it may be necessary to separate and collect dust of a specific metal such as aluminum or platinum from dust of another metal.

  Therefore, when separating and collecting the processed metal as described above, one end of the dust collection duct is removed (separated) from the dust box side before performing the laser processing on the work of the specific metal, and the dust collection duct is removed. It is necessary to remove the other end from the dust collection device side and clean the inside of the dust collection duct so that dust from another processing is not mixed. Further, it is necessary to clean the inside of the dust collection duct even after performing the laser processing of the work of the specific metal and before performing the laser processing of the work of the other metal. As a result, there is a problem that a lot of time and labor is required for a setup operation before performing the laser processing, and it is difficult to increase the productivity of the laser processing machine.

  Therefore, an object of the present invention is to provide a laser processing machine having a novel configuration that can solve the above-described problem.

  A laser processing machine according to an embodiment of the present invention includes a dust box in which a first opening and a second opening are formed to take in dust generated by laser processing, a dust collector that collects dust, and one end. Is connected to the dust box via the first opening, the other end is connected to the dust collector, a first dust collection duct, and one end is connected to the dust box via the second opening. A second dust collection duct connected to the other end of the dust collection device and the dust box (the dust collection chamber of the dust collection device) and the dust collection device via the first dust collection duct. A first switching member that switches between a communicating state and a state in which communication between the dust box and the dust collecting device via the first dust collecting duct is interrupted, and the dust box via the second dust collecting duct. A state in which the dust collecting device is communicated with the second dust collecting duct; And a, a second switching member for switching to a state in which block the communication of the dust box and the dust collector through. The dust collecting device may be divided into a first dust collecting device and a second dust collecting device.

  In an embodiment of the present invention, another first opening and another second opening are formed in the dust collecting device, and the other end of the first dust collecting duct is connected to the other first opening of the dust collecting device. The other end of the second dust collection duct may be connected to an opening side, and may be connected to the other second opening side of the dust collection device. Furthermore, in an embodiment of the present invention, a state in which the inside of the first dust collection duct is communicated with the inside of the dust collection device through the other first opening, and a state in which the inside of the first dust collection device is shut off from the inside of the dust collection device And a state in which the inside of the second dust collecting duct is communicated with the inside of the dust collecting device via the other second opening, and is cut off from the inside of the dust collecting device. And a second switching member for switching to the state in which the switching is performed.

  In an embodiment of the present invention, first dust blowing means is provided inside the dust box at a position separated from the first opening, and blows air so as to draw dust toward the first opening. A second blower provided at a position inside the box away from the second opening and blowing air so as to draw dust toward the second opening may be provided.

  According to an embodiment of the present invention, before the laser processing of the specific metal work is performed, the first switching member switches the state in which the dust box and the dust collecting device are communicated via the first dust collecting duct. Further, the communication between the dust box and the dust collecting device via the second dust collecting duct is maintained in a disconnected state. Thereby, during the laser processing of the work of the specific metal, the dust of the specific metal can be collected from the dust collection device via the dust box and the first dust collection duct.

  Before the laser processing of a work of another metal (a metal other than the specific metal), the second switching member switches the dust box and the dust collecting device to be in communication with each other via the second dust collecting duct. Further, the first switching member switches to a state in which communication between the dust box and the dust collecting device via the first dust collecting duct is interrupted. Thus, during laser processing of another metal work, dust of another metal can be collected from the dust collector via the dust box and the second dust collection duct.

  That is, by the switching operation of the first switching member and the second switching member, the dust collection path from the dust box to the dust collector can be divided into two, and the dust of the specific metal and the powder of the other metal can be divided. Can be collected separately.

  According to the present invention, even when it is necessary to separate and collect the dust of a specific metal and the dust of another metal, the setup work before performing the laser processing is simplified, and the productivity of the laser processing machine is sufficiently improved. Can be enhanced.

FIG. 1 is a schematic plan view of a laser processing machine according to an embodiment of the present invention. In FIG. 1, a part of a main body frame is determined. FIG. 2 is a diagram along the line II-II in FIG. FIG. 3 is a schematic plan view showing the dust collection system according to the embodiment of the present invention and the periphery thereof. FIG. 4 is a schematic perspective view showing the dust collection system according to the embodiment of the present invention and the periphery thereof. FIG. 5 is an enlarged sectional view taken along line VV in FIG. FIG. 6 is an enlarged sectional view taken along line VI-VI in FIG. FIG. 5 is an enlarged sectional view taken along line VII-VII in FIG. FIG. 8 is an enlarged sectional view taken along line VIII-VIII in FIG.

  An embodiment of the present invention will be described with reference to FIGS.

  In the description and the claims of the present application, “provided” means that in addition to being provided directly, being provided indirectly via another member is also meant. In the embodiment of the present invention, the following definitions are provided. The “X-axis direction” is one in the horizontal direction indicated by an arrow or the like in the drawing, and is also referred to as the left-right direction. The “Y-axis direction” is one of the horizontal directions indicated by arrows or the like in the drawing and a direction orthogonal to the X-axis direction, and is also referred to as the front-back direction. In the drawings, “FF” is forward, “FR” is backward, “L” is left, “R” is right, “U” is upward, “D” is Each points downward.

  As shown in FIGS. 1 to 4, a laser processing machine 1 according to an embodiment of the present invention is a processing machine that performs laser processing (laser cutting processing) on a plate-shaped work (sheet metal) W. Further, the laser beam machine 1 includes a main body frame (processing machine main body) 3. The main body frame 3 has a lower frame (bed) 5 extending in the X-axis direction and the Y-axis direction, and an upper surface of the lower frame 5. And a gate-shaped upper frame (supporting frame) 7 provided. The upper frame 7 has a horizontal portion 7a extending in the Y-axis direction.

  On the upper side of the lower frame 5, a work table 9 for supporting the work W movably in the X-axis direction is provided. Although not shown, the work table 9 has a plurality of free ball bearings or a large number of brushes for supporting W.

  A carriage base 11 extending in the X-axis direction is provided on the upper right portion of the lower frame 5. On the front side of the carriage base 11, a carriage 13 is provided movably in the X-axis direction. The carriage 13 moves in the X-axis direction by driving an X-axis motor (not shown) provided at an appropriate position on the carriage base 11. Further, the carriage 13 is provided with a plurality of clampers 15 for gripping the end of the work W.

A slider 17 is provided on the horizontal portion 7a of the upper frame 7 so as to be movable in the Y-axis direction. The slider 17 moves in the Y-axis direction by driving a Y-axis motor (not shown) provided at an appropriate position on the upper frame 7. The slider 17 is provided with a laser processing head 19 for irradiating the workpiece W with laser light. The laser processing head 19 (irradiation position BP of the laser processing head 19) moves in the Y-axis direction integrally with the slider 17 by driving the Y-axis motor. The laser processing head 19 is optically connected to a laser oscillator (not shown) such as a fiber laser oscillator or a CO ₂ laser oscillator that emits laser light.

  Below the moving area of the tip of the laser processing head 19 on the work table 9, a laser opening 21 for passing laser light is formed along the Y-axis direction.

  With the configuration described above, the carriage 13 is moved in the X-axis direction by driving the X-axis motor while the ends of the work W are gripped by the plurality of clampers 15, and the laser processing head 19 is moved by the Y-axis motor to move the laser processing head 19 in the Y-direction. Move in the axial direction. Then, the work W can be positioned in the X-axis direction and the Y-axis direction relative to the irradiation position BP of the laser processing head 19. Then, by irradiating laser light from the laser processing head 19 toward the work W while positioning the work W in the X-axis direction and the Y-axis direction, desired laser processing is performed on the work W.

  The laser beam machine 1 is provided with a dust collection system 23 for collecting dust and the like generated by laser processing. The specific configuration of the dust collection system 23 according to the embodiment of the present invention is as follows.

  As shown in FIGS. 3 to 7, a suction pipe 25 for sucking dust is provided below the laser opening 21 in the work table 9, and the suction pipe 25 extends in the Y-axis direction. I have. An intermediate pipe 27 extending in the Y-axis direction is provided below the suction pipe 25, and the intermediate pipe 27 communicates with the laser opening 21 via the suction pipe 25.

  A scrap box 29 for collecting scraps is provided below the intermediate pipe 27, and the scrap box 29 extends in the Y-axis direction. One end side (rear end side) of the scrap box 29 is configured to be opened and closed by an opening / closing door 31. Further, a pair of trays 33 for collecting scraps is provided at a bottom portion inside the scrap box 29, and the pair of trays 33 are appropriately connected. The pair of trays 33 is configured to be able to be taken in and out of the scrap box 29 with one end of the scrap box 29 opened.

  A dust box 35 for taking dust is provided above the scrap box 29, and the dust box 35 extends in the Y-axis direction. Further, the inside of the dust box 35 communicates with the inside of the scrap box 29. The upper side of the dust box 35 is connected to the lower side of the intermediate pipe 27, and the inside of the dust box 35 communicates with the laser opening 21 via the intermediate pipe 27 and the suction pipe 25. Further, a first opening (a first opening on the entrance side) 37 is formed in a rear portion of the left wall of the dust box 35, and a first opening 37 is formed in a front portion of the left wall of the dust box 35. Two openings (second openings on the entrance side) 39 are formed.

  Near the left side of the dust box 35, a first connection pipe 41 extending in the Y-axis direction is provided. A first relay duct (first relay box) 43 is provided on a base end side (rear end side) of the first connection pipe 41, and an upper end side (right end side) of the first relay duct 43 is a dust box. 35 is connected to the first opening 37 side. In the vicinity of the left side of the dust box 35, a second connection pipe 45 extending in the Y-axis direction is provided. A second relay duct (second relay box) 47 is provided at a base end side (rear end side) of the second connection pipe 45, and a dust box 35 is provided at an upper end side (right end side) of the second relay duct 47. Are connected to the side of the second opening 39. Note that the scrap box 29 may be regarded as a part of the dust box 35.

  As shown in FIGS. 3, 4, and 8, a dust collecting device 49 that collects dust is provided at a position separated from the dust box 35. The dust collecting device 49 has a box-shaped dust collecting device main body 51, and the inside of the dust collecting device main body 51 is vertically partitioned into an exhaust chamber 55 and a dust collecting chamber 57 by a partition plate 53. In addition, another first opening (first opening on the outlet side) 59 is formed in the left wall of the dust collector main body 51, and the other first opening 59 is formed in the dust collecting chamber 57. Communicating. Another second opening (a second opening on the outlet side) 61 is formed in the right wall of the dust collector main body 51, and the other second opening 61 communicates with the dust collecting chamber 57. ing. Although not shown, the dust collecting device 49 includes an exhaust fan provided in the exhaust chamber 55 and exhausting air to the outside, and a plurality of cylindrical filters provided in the dust collecting chamber 57 and capturing dust. have. The dust collecting device 49 is provided below the filter in the dust collecting chamber 57 and has a collecting box for collecting dust.

  A first connection box 63 is provided on the other first opening 59 side of the dust collector main body 51 (the dust collector 49). A second connection box 65 is provided on the other second opening 61 side of the dust collector main body 51 (the dust collector 49).

  As shown in FIGS. 3 to 6, one end of a first dust collection duct 67 is detachably connected to the front end side (front end side) of the first connection pipe 41. The other end of the first dust collection duct 67 is detachably connected. In other words, the first opening 37 of the dust box 35 and the other first opening 59 of the dust collecting device 49 are connected via the first dust collecting duct 67.

  One end of a second dust collection duct 69 is detachably connected to the tip side (front end side) of the second connection pipe 45, and the other end of the second dust collection duct 69 is connected to the second connection box 65. The parts are detachably connected. In other words, the second opening 39 of the dust box 35 and the other second opening 61 of the dust collecting device 49 are connected via the second dust collecting duct 69.

  As shown in FIGS. 3, 4, and 5, inside the upper end side of the first relay duct 43, a plate-like first switching member 71 opens and closes around a swing axis 71s parallel to the Y-axis direction. It is provided so as to swing in the directions (opening direction and closing direction). The first switching member 71 is shut off from the inside of the dust box 35 by swinging in the opening / closing direction so that the inside of the first dust collection duct 67 communicates with the inside of the dust box 35 via the first opening 37. Switch to the state that was done. A first switching motor 73 is provided on a front wall of the first relay duct 43 as a first switching actuator (first switching actuator on the entrance side) that swings the first switching member 71 in the opening and closing direction. . Instead of the first switching motor 73, a first swing cylinder (not shown) may be used as the first switching actuator.

  As shown in FIGS. 3, 4, and 6, similarly to the configuration of the above-described first switching member 71, a plate-like second switching member 75 is provided inside the upper end side of the second relay duct 47. It is provided so as to be swingable in the opening and closing direction around a swing axis 75 s parallel to the axial direction. The second switching member 75 swings in the opening / closing direction to shut off the inside of the second dust collection duct 69 with the inside of the dust box 35 through the second opening 39 and the inside of the dust box 35. Switch to the state that was done. A second switching motor 77 is provided on the rear wall of the second relay duct 47 as a second switching actuator (a second switching actuator on the entrance side) that swings the second switching member 75 in the opening and closing direction. .

  As shown in FIGS. 3, 4, and 8, similarly to the configuration of the above-described first switching member 71, another plate-like first switching member 79 is provided inside the first connection box 63. It is provided so as to be able to swing in the opening and closing direction around the swing axis 79s. The other first switching member 79 moves the inside of the first dust collecting duct 67 into the dust collecting chamber 57 of the dust collecting device 49 (the inside of the dust collecting device 49) by swinging in the opening and closing direction. The state is switched between a state in which communication is carried out via 59 and a state in which the state is cut off from the dust collection chamber 57 of the dust collection device 49. Further, on the upper wall portion of the first connection box 63, another first switching motor as another first switching actuator (first switching actuator on the outlet side) for swinging another first switching member 79 in the opening and closing direction. 81 are provided.

  Inside the second connection box 65, similarly to the configuration of the first switching member 71 described above, another plate-like second switching member 83 can swing in the opening and closing direction around a vertical swing axis 83s. Is provided. The other second switching member 83 is swung to allow the inside of the second dust collecting duct 69 to communicate with the dust collecting chamber 57 of the dust collecting device 49 via the other second opening 61, The state is switched to a state where the dust collection chamber 57 of the device 49 is shut off. Another second switching motor is provided on the upper wall portion of the second connection box 65 as another second switching actuator (an exit-side first switching actuator) for swinging another second switching member 83 in the opening / closing direction. 85 are provided.

  As shown in FIG. 7, a front portion (a position separated from the first opening 37) inside the dust box 35 serves as a first blowing unit that blows air so as to draw dust toward the first opening 37. Is provided. The first blower pipe 87 extends in the X-axis direction. In the first blower pipe 87, a plurality (only one is shown) of injection holes 89 for injecting air toward the rear direction (the first opening 37 side) are formed at intervals in the X-axis direction. The first blower pipe 87 is connected to an air source (not shown) such as an air compressor of factory equipment.

  A second blowing pipe 91 as a second blowing means for blowing air so as to draw dust toward the second opening 39 is provided at a rear side portion (a position separated from the second opening 39) inside the dust box 35. Is provided. The second blower pipe 91 extends in the X-axis direction. A plurality (only one is shown) of injection holes 93 that inject air toward the front direction (the second opening 39 side) are formed in the second blow pipe 91 at intervals in the X-axis direction. The second blowing pipe 91 is connected to an air source.

  Next, the operation and effect of the embodiment of the present invention will be described.

  Before the laser processing of the work W made of a specific metal (for example, aluminum or platinum), the first switching member 71 is swung in the opening direction by the driving of the first switching motor 73, so that the first dust collecting duct 67 The inside is switched to a state communicating with the inside of the dust box 35. By driving the other first switching member 79 in the opening direction by driving the other first switching motor 81, the inside of the first dust collecting duct 67 is communicated with the dust collecting chamber 57 of the dust collecting device 49. Switch. In other words, the state is switched to a state where the dust box 35 and the dust collection chamber 57 are communicated via the first dust collection duct 67. Further, while the second switching member 75 and the other second switching member 83 are each closed, the state where the inside of the second dust collection duct 69 is shut off from the dust collection chamber 57 of the dust collection device 49 is maintained. In other words, the communication between the dust box 35 and the dust collection chamber 57 via the second dust collection duct 69 is maintained in a disconnected state.

  Thereafter, as described above, the laser beam is irradiated from the laser processing head 19 toward the specific metal work W while positioning the specific metal work W in the X-axis direction and the Y-axis direction. The desired laser processing is performed on W.

  During laser processing of the specific metal work W, air containing specific metal dust (peripheral air) is activated by the operation of the dust collecting device 49 while injecting air backward from the plurality of injection holes 89 of the first blower pipe 87. ) Is sucked into the dust collector 49 to collect the powder of the specific metal. Thereby, the dust of the specific metal can be collected from the collection box of the dust collection device 49 via the dust box 35 and the first dust collection duct 67 and the like.

  After that, before the laser processing of the workpiece W of another metal (for example, mild steel or stainless steel), the second switching member 75 is swung in the opening direction by driving the second switching motor 77 to thereby perform the second collection. The state where the inside of the dust duct 69 is communicated with the inside of the dust box 35 is switched. By driving the other second switching member 83 in the opening direction by driving the other second switching motor 85, the inside of the second dust collecting duct 69 communicates with the dust collecting chamber 57 of the dust collecting device 49. Switch. In other words, the state is switched to a state where the dust box 35 and the dust collection chamber 57 are communicated via the second dust collection duct 69. Further, the first switching member 71 is swung in the closing direction by the driving of the first switching motor 73 to switch the inside of the first dust collection duct 67 from the inside of the dust box 35 to the closed state. By driving the other first switching member 79 in the closing direction by driving the other first switching motor 81, the inside of the first dust collecting duct 67 is shut off from the dust collecting chamber 57 of the dust collecting device 49. Switch. In other words, the state where the communication between the dust box 35 and the dust collection chamber 57 via the first dust collection duct 67 is cut off is switched. Further, the tray 33 is pulled out of the scrap box 29, cleaned (including dust collection), and returned to the scrap box 29.

  Thereafter, as described above, the laser beam is irradiated from the laser processing head 19 toward the other work W while the other metal work W is positioned in the X-axis direction and the Y-axis direction, so that the other work W Is subjected to desired laser processing.

  While the other metal work W is being laser-processed, the air containing the other metal dust is activated by the operation of the dust collector 49 while injecting air forward from the plurality of injection holes 93 of the second blow pipe 91. The (surrounding air) is sucked into the dust collecting device 49 to collect other metal powder. Thus, dust of another metal can be collected from the collection box of the dust collection device 49 via the dust box 35 and the second dust collection duct 69 and the like.

  In other words, by the switching operation of the first switching member 71, the other first switching member 79, the second switching member 75, and the other second switching member 83, two dust collection paths from the dust box 35 to the dust collection device 49 are formed. Can be divided into This makes it possible to easily collect the dust of the specific metal and the powder of the other metal while preventing them from being separated and mixed.

  Also, as described above, during the laser processing of the specific metal work W, since the air is jetted rearward from the plurality of injection holes 89 of the first blower pipe 87, the dust of the specific metal is discharged into the first opening. It can be moved to the part 37 side. Similarly, during the laser processing of the workpiece W of another metal, air is injected forward from the plurality of injection holes 93 of the first blower pipe 91, so that dust of the other metal is discharged to the second opening. It can be approached to the 39 side.

  According to the embodiment of the present invention, as described above, it is not necessary to clean the inside of the dust collecting ducts 67 and 69 each time the processing of the specific metal and the processing of the other metal are switched, and the dust of the specific metal and the other metal are not required. The powder can be separated and the thermite reaction can be prevented. Further, even when it is necessary to separate and collect dust of a specific metal and dust of another metal, it is possible to simplify the setup work before performing the laser processing and sufficiently increase the productivity of the laser processing machine 1. it can.

  Further, according to the embodiment of the present invention, as described above, dust of the specific metal can be brought to the first opening 37 side during the laser processing of the specific metal work. During laser processing of the work W of another metal, dust of another metal can be brought to the second opening 39 side. Therefore, during laser processing of the specific metal work W, the flow of the specific metal dust to the first dust collection duct 67 side can be promoted, and the dust collection efficiency of the specific metal powder by the dust collection device 49 can be increased. . During the laser processing of the work W of another metal, the flow of the dust of the other metal to the second dust collection duct 69 side is promoted, and the dust collection efficiency of the dust of the other metal by the dust collector 49 is increased. it can.

  The present invention is not limited to the description of the above embodiment, but can be implemented in various modes as follows.

  For example, instead of connecting the other end of the first dust collecting duct 67 and the other end of the second dust collecting duct 69 to the common dust collecting device 49, they may be connected to individual dust collecting devices. Further, instead of using both the first switching member 71 and the other first switching member 79, one of the first switching member 71 and the other first switching member 79 is used, and the dust box 35 and the dust collection chamber are used. The state in which the communication between the dust box 35 and the dust collection chamber 57 is interrupted may be switched to the state in which the communication between the dust box 57 and the dust box 35 is cut off. Similarly, instead of using both the second switching member 75 and the other second switching member 83, one of the second switching member 75 and the other second switching member 83 is used, and the dust box 35 and the dust collection The state in which the chamber 57 is communicated with the state in which the communication between the dust box 35 and the dust collection chamber 57 is shut off may be switched.

  The scope of rights included in the present invention is not limited to the above-described embodiment.

1 laser beam machine 3 body frame (machine body)
Reference Signs List 5 Lower frame 7 Upper frame 7a Horizontal section 9 Work table 11 Carriage base 13 Carriage 15 Clamper 17 Slider 19 Laser processing head 21 Laser opening 23 Dust collection system 25 Suction pipe 27 Intermediate pipe 29 Scrap box 31 Opening door 33 Tray 35 Dust box 37 First opening 39 Second opening 41 First connection pipe 43 First relay duct 45 Second connection pipe 47 Second relay duct 49 Dust collector 51 Dust collector body 53 Partition plate 55 Exhaust chamber 57 Dust chamber 59 Other first opening 61 Other second opening 63 First connection box 65 Second connection box 67 First dust collection duct 69 Second dust collection duct 71 First switching member 71s Swing axis 73 First switching motor (First switching actuator)
75 second switching member 75s swing axis 77 second switching motor (second switching actuator)
79 Other first switching member 79s Swing axis 81 Other first switching motor (Other first switching actuator)
83 Other second switching member 83s Swing axis 85 Other second switching motor (other second switching actuator)
87 First blower pipe (first blower)
89 injection hole 91 second blowing pipe (second blowing means)
93 Injection hole BP Irradiation position W Work (sheet metal)

Claims (2)

A dust box in which a first opening and a second opening are formed to take in dust generated by laser processing;
A dust collecting device for collecting dust;
A first dust collection duct having one end connected to the dust box via the first opening and the other end connected to the dust collection device;
A second dust collection duct having one end connected to the dust box via the second opening and the other end connected to the dust collection device;
A second state is switched between a state in which the dust box is communicated with the dust collection device via the first dust collection duct, and a state in which communication between the dust box and the dust collection apparatus is cut off via the first dust collection duct. 1 switching member,
A second state is switched between a state in which the dust box is communicated with the dust collection device via the second dust collection duct, and a state in which communication between the dust box and the dust collection device is cut off via the second dust collection duct. A laser processing machine, comprising: two switching members. A first blowing unit that is provided at a position separated from the first opening inside the dust box and blows air so as to draw dust toward the first opening;
A second air supply means provided at a position inside the dust box, which is separated from the second opening, and blows air so as to draw dust toward the second opening. 2. The laser beam machine according to 1.

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