CN113182673B - Dust collector for laser cutting machine - Google Patents
Dust collector for laser cutting machine Download PDFInfo
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- CN113182673B CN113182673B CN202110740048.6A CN202110740048A CN113182673B CN 113182673 B CN113182673 B CN 113182673B CN 202110740048 A CN202110740048 A CN 202110740048A CN 113182673 B CN113182673 B CN 113182673B
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- dust
- air suction
- workbench
- laser cutting
- vacuum pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a dust removal device for a laser cutting machine, which comprises a workbench structure, a workbench bracket, a vacuum pump, an upper air suction structure, a side air suction structure, a tee joint and a dust collection bag, wherein the workbench bracket is arranged in the side wall of a machine tool frame; the space that forms between lathe frame and workstation support, the workstation structure is the cavity, and the cavity lower wall is located to the vacuum pump, goes up the air intake intercommunication that induced drafts structure and side air suction structure pass through tee bend and vacuum pump, and the dust bag is located outside the cavity, and the air outlet intercommunication through dust collecting tube and vacuum pump. The invention belongs to the technical field of laser cutting, and particularly provides a dust removal device for a laser cutting machine, which greatly improves the dust removal efficiency, prolongs the service life of equipment, is simple to operate, and saves time and labor.
Description
Technical Field
The invention relates to the technical field of laser cutting, in particular to a dust removal device for a laser cutting machine.
Background
The laser cutting is to focus the laser emitted from a laser into a laser beam with high power density through an optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach a melting point or a boiling point, and simultaneously, the high-pressure gas coaxial with the laser beam blows away the molten or gasified metal. And finally, the material is cut along with the movement of the relative position of the light beam and the workpiece, so that the cutting purpose is achieved. The laser cutting machine has high operation precision and high processing efficiency, thereby being widely applied.
However, laser cutting metal parts can produce smoke and dust, piece and welding slag etc. can pollute relevant part and work piece on the lathe, influence normal cutting, consequently, just can install the updraft ventilator who removes dust on laser cutting machine, but cutting dust and cutting waste gas can not be taken away effectively to current convulsions structure, and dust and waste gas are toward outer diffusion during the messenger cuts, have the smoke and dust and toward emitting outward during the cutting, cause huge healthy hidden danger for the user.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide the dust removal device for the laser cutting machine, which can greatly improve the dust removal efficiency, prolong the service life of equipment, and is simple to operate, time-saving and labor-saving.
In order to solve the technical problems, the invention adopts the following technical scheme.
The invention provides a dust removal device for a laser cutting machine, which comprises a workbench structure, a workbench bracket, a vacuum pump, an upper air suction structure, a side air suction structure, a tee joint and a dust collection bag, wherein the workbench bracket is arranged in the side wall of a machine tool frame; the space formed between the machine tool frame, the workbench bracket and the workbench structure is a cavity, the vacuum pump is arranged on the lower wall of the cavity, the upper air suction structure and the side air suction structure are communicated with the air inlet of the vacuum pump through a tee joint, and the dust collection bag is arranged outside the cavity and is communicated with the air outlet of the vacuum pump through a dust collection pipe; the workbench structure comprises an enclosure and a platform plate, a sealing gasket is arranged between the enclosure and the upper end of a workbench bracket, only two parallel sides of the platform plate are fixedly connected to the inner wall of the enclosure, and a gap between the other two sides of the platform plate and the other two inner walls of the enclosure is a side dust suction hole; the upper air suction structure comprises an upper dust suction hole, the upper dust suction hole is arranged on one side of the cutting head, and the upper dust suction hole is communicated with the tee joint through a first air suction pipe; the side air suction structure comprises a second air suction pipe, a side dust suction hole, a flow guide layer and a plurality of limiting support rods, the limiting support rods are fixedly connected to the inner wall of the workbench bracket in an equal height horizontal mode respectively, the flow guide layer is hung on the limiting support rods in an inverted cone shape, and two ends of the second air suction pipe are communicated with the lower end of the flow guide layer and a tee joint respectively; the side dust suction holes are hermetically connected with the second air suction pipe through the space at the upper part of the diversion layer.
Preferably, the upper dust suction hole is fixedly connected outside the side wall of the cutting head in a circular ring shape, and the first air suction pipe can be arranged on a side beam on the side surface of the machine tool frame in a telescopic mode.
Preferably, a filter layer is arranged above the flow guide layer, the shape of the filter layer is the same as that of the flow guide layer, and a plurality of filter holes are formed in the filter layer at equal intervals; be equipped with supporting pad one and supporting pad two between filter layer and the guiding layer, supporting pad one is closed cyclic annular setting, and the rigid coupling locates on the guiding layer upper end border, and on guiding layer lower extreme border was located to supporting pad two rigid couplings, the height of supporting pad one and supporting pad two was the same, and the clearance between filter layer and the guiding layer is the water conservancy diversion chamber.
Preferably, be equipped with the cross bracing piece on the filter layer, the cross bracing piece level is arranged in the filter layer upper end.
Preferably, a control panel is arranged on the side wall of the machine tool frame, a storage battery and a controller are arranged in the machine tool frame, the storage battery is electrically connected with the controller and the control panel, and the controller is electrically connected with the control panel.
Preferably, hydraulic rods are fixedly connected to four corners of the lower wall of the workbench support respectively, a lifting slide rail is arranged on the workbench support, and a lifting slide groove matched with the lifting slide rail is fixedly connected to a corresponding position of the machine tool frame; the storage battery is electrically connected with the four hydraulic rods, and the controller is electrically connected with the four hydraulic rods.
Preferably, the enclosure is hinged to the upper end of one side wall of the workbench support through a hinged shaft, the upper end of the side wall of the workbench support, which is far away from the hinged shaft, is fixedly connected with an electromagnetic lock, and the side wall of the enclosure, which is far away from the hinged shaft, is fixedly connected with a handle; the storage battery is electrically connected with the electromagnetic lock, and the controller is electrically connected with the electromagnetic lock.
Preferably, a plurality of hollow grids which are arranged at equal intervals are fixedly connected to the side dust suction holes.
The dust removal device for the laser cutting machine has the following beneficial effects.
1. The invention designs the upper air suction structure aiming at the light-texture smoke dust, designs the side air suction structure aiming at the heavier debris and welding slag, has higher dust removal efficiency and narrow cross section of the flow guide cavity, and is beneficial to improving the air speed and the working efficiency.
2. According to the invention, the hollow grids and the multiple filtering structures are arranged on the side air suction structure, so that debris and welding slag with larger particles can be effectively prevented from entering the vacuum pump, and the service life of the vacuum pump is prolonged.
3. The electromagnetic lock is controlled to work through the operation of the control panel, the opening and the closing of the workbench structure can be easily realized, a user can conveniently clean substances such as welding slag and the like in the filter layer, and the electromagnetic lock is simple to operate, time-saving and labor-saving.
4. According to the invention, the workbench bracket is supported by the hydraulic rod, and the lifting of the workbench bracket is adjusted by the control panel, so that the operation is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a cross-sectional view of a dust removing device for a laser cutting machine according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 1.
Fig. 4 is a side view of an embodiment of the present invention.
FIG. 5 is a top view of a platen structure in an embodiment of the invention.
FIG. 6 is a top view of a filter layer in an embodiment of the invention.
Fig. 7 is a top view of a fluid directing layer in an embodiment of the invention.
FIG. 8 is a bottom view of the upper suction hole in an embodiment of the present invention.
Fig. 9 is an electrical connection diagram of each device in the embodiment of the present invention.
Description of reference numerals: 1. the vacuum dust collecting device comprises a workbench structure, 2, a workbench support, 3, a vacuum pump, 4, an upper air suction structure, 5, a side air suction structure, 6, a tee joint, 7, a dust collecting bag, 8, a machine tool frame, 9, a chamber, 10, a fence, 11, a platform board, 12, a side dust suction hole, 13, an upper dust suction hole, 14, a cutting head, 15, a first air suction pipe, 16, a second air suction pipe, 17, a flow guide layer, 18, a limiting support rod, 19, a filter layer, 20, a filter hole, 21, a first support pad, 22, a second support pad, 23, a flow guide cavity, 24, a cross support rod, 25, a control panel, 26, a storage battery, 27, a controller, 28, a hydraulic rod, 29, a lifting slide rail, 30, a lifting slide groove, 31, a hinge shaft, 32, an electromagnetic lock, 33, a handle, 34, a grid hollow, 35, a dust collecting pipe, 36 and a side beam.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1 to 9, the present invention provides a dust removing device for a laser cutting machine, which comprises a workbench structure 1, a workbench support 2, a vacuum pump 3, an upper air suction structure 4, a side air suction structure 5, a tee joint 6 and a dust collecting bag 7, wherein the workbench support 2 is arranged in the side wall of a machine frame 8, and the workbench structure 1 is arranged at the upper end of the workbench support 2; the space formed between the machine tool frame 8 and the workbench bracket 2 as well as the workbench structure 1 is a cavity 9, the vacuum pump 3 is arranged at the lower wall of the cavity 9, the upper air suction structure 4 and the side air suction structure 5 are communicated with the air inlet of the vacuum pump 3 through a tee joint 6, the upper air suction structure 4 is used for absorbing most of smoke dust in the laser cutting working process, the side air suction structure 5 is used for absorbing large granular substances such as scraps, welding slag and the like generated in the laser cutting working process, and the dust collection bag 7 is arranged outside the cavity 9 and is communicated with the air outlet of the vacuum pump 3 through a dust collection pipe 35; the workbench structure 1 comprises an enclosure 10 and a platform plate 11, a sealing gasket is arranged between the enclosure 10 and the upper end of the workbench bracket 2, only two parallel sides of the platform plate 11 are fixedly connected to the inner wall of the enclosure 10, and a gap between the other two sides of the platform plate 11 and the other two inner walls of the enclosure 10 is a side dust suction hole 12; the upper air suction structure 4 comprises an upper dust suction hole 13, the upper dust suction hole 13 is circularly arranged, the upper dust suction hole 13 is arranged around the cutting head 14 in a surrounding manner, and the upper dust suction hole 13 is communicated with the tee joint 6 through a first air suction pipe 15; the side air suction structure 5 comprises a second air suction pipe 16, a side dust suction hole 12, a flow guide layer 17 and a plurality of limiting support rods 18, the limiting support rods 18 are fixedly connected to the inner wall of the workbench bracket 2 in an equal height horizontal mode respectively, the flow guide layer 17 is hung on the limiting support rods 18 in an inverted cone shape, and two ends of the second air suction pipe 16 are communicated with the lower end of the flow guide layer 17 and the tee joint 6 respectively; the side suction holes 12 are hermetically connected with the second suction pipe 16 through the space above the flow guide layer 17 to ensure the airtightness of the side suction structure 5.
Furthermore, the upper dust suction hole 13 is fixedly connected to the outside of the side wall of the cutting head 14 in a circular ring shape, and the first dust suction pipe 15 can be arranged on a side beam 36 on the side surface of the machine frame 8 in a telescopic manner, so that the upper dust suction hole 13 connected with the first dust suction pipe 15 can move freely along with the cutting head 14, and the collection efficiency of the upper dust suction hole 13 on smoke dust is further improved.
Furthermore, a filter layer 19 is arranged above the flow guide layer 17, the shape of the filter layer 19 is the same as that of the flow guide layer 17, and a plurality of filter holes 20 are arranged on the filter layer 19 at equal intervals; be equipped with supporting pad one 21 and two supporting pads 22 between 19 and the water conservancy diversion layer 17, supporting pad one 21 is closed annular setting, and the rigid coupling is located on water conservancy diversion layer 17 upper end border, on water conservancy diversion layer 17 lower extreme border is located to two 22 rigid couplings of supporting pad, supporting pad one 21 and two 22 highly the same of supporting pad, the piece and the welding slag of the great granule of effective separation enter into vacuum pump 3 in, the life of extension vacuum pump 3, clearance between 19 and the water conservancy diversion layer 17 of filter layer are water conservancy diversion chamber 23, water conservancy diversion chamber 23 cross section is narrow, be favorable to improving air velocity, and the work efficiency is improved.
Furthermore, be equipped with cross bracing piece 24 on filter layer 19, cross bracing piece 24 level arranges in filter layer 19 upper end, and cross bracing piece 24 plays the reinforcing effect to filter layer 19, is convenient for the user to dismantle filter layer 19 from chamber 9 simultaneously.
Further, a control panel 25 is provided on the side wall of the machine tool frame 8, a battery 26 and a controller 27 are provided in the machine tool frame 8, a control program is written in the controller 27, the battery 26 is electrically connected to the controller 27 and the control panel 25, and the controller 27 is electrically connected to the control panel 25.
Furthermore, hydraulic rods 28 are fixedly connected to four corners of the lower wall of the workbench support 2, a lifting slide rail 29 is arranged on the workbench support 2, and a lifting slide groove 30 matched with the lifting slide rail 29 is fixedly connected to a position corresponding to the machine tool frame 8; the storage battery 26 is electrically connected with the four hydraulic rods 28, the controller 27 is electrically connected with the four hydraulic rods 28, and the lifting of the workbench bracket 2 can be easily realized through the operation of the control panel 25.
Furthermore, the enclosure 10 is hinged to the upper end of one side wall of the workbench support 2 through a hinge shaft 31, the upper end of the side wall of the workbench support 2 far away from the hinge shaft 31 is fixedly connected with an electromagnetic lock 32, and the side wall of the enclosure 10 far away from the hinge shaft 31 is fixedly connected with a handle 33; the storage battery 26 is electrically connected with the electromagnetic lock 32, the controller 27 is electrically connected with the electromagnetic lock 32, and the opening and closing of the workbench structure 1 can be easily realized by operating the control panel 25, so that a user can clean materials such as welding slag in the filter layer 19 conveniently, and the operation is simple, time-saving and labor-saving.
Furthermore, a plurality of hollow grids 34 which are arranged at equal intervals are fixedly connected to the side dust suction holes 12, so that the filtering effect on large-particle chips and welding slag is further improved.
When in use, a user installs the clean dust bag 7 on the dust collecting pipe 35, and the device is powered on after the air tightness of the device system is checked; the user clicks the control panel 25 to lock the electromagnetic lock 32, specifically, the control panel 25 sends an electric signal to the controller 27, the controller 27 controls the electromagnetic lock 32 to be powered on, the electromagnetic lock 32 generates strong magnetism instantly after being powered on, and the enclosure 10 on the workbench structure 1 is tightly adsorbed, that is, the enclosure 10 is locked on the workbench bracket 2.
The user clicks the platform board 11 of control panel 25 regulation workstation structure 1 to suitable operating height, specifically, and control panel 25 sends the signal of telecommunication to controller 27, and four hydraulic stem 28 synchronization workings are controlled to controller 27, adjust the lift of platform board 11.
In the working process of cutting a workpiece by laser, a user clicks the control panel 25 to turn on the vacuum pump 3, the controller 27 controls the vacuum pump 3 to be electrified and work, and a large amount of smoke dust, debris, welding slag and other large-particle substances are generated around the cutting head 14; the aperture of the upper dust suction hole 13 generates negative pressure to suck the smoke dust, the smoke dust sequentially passes through the upper dust suction hole 13, the first air suction pipe 15 and the tee joint 6, and then is discharged into the dust collection bag 7 through the dust collection pipe 35 under the action of the vacuum pump 3; meanwhile, strong negative pressure is generated at the side dust suction holes 12, large granular substances such as chips and welding slag and partial smoke dust generated in cutting work enter the filter layer 19 under the primary filtering of the hollow grids 34, the large granular substances and partial smoke dust are filtered again on the filter holes 20 on the filter layer, the fine crushed chips, welding slag and partial smoke dust enter the flow guide cavity 23 between the filter layer 19 and the flow guide layer 17 through the filter holes 20, sequentially pass through the second air suction pipe 16 and the tee joint 6 under the action of the negative pressure, and are discharged into the dust collection bag 7 through the dust collection pipe 35 under the action of the vacuum pump 3, and the large-particle chips and welding slag intercepted by the filter layer 19 stay on the filter layer 19.
After the laser cutting operation is finished, a user presses the control panel 25 to unlock the electromagnetic lock 32 after the equipment is cooled to room temperature, the workbench structure 1 is opened through the handle 33, the cross support rod 24 is clamped by a tool and taken out, and chips and welding slag on the filter layer 19 are cleaned; the user cleans the large-particle chips and welding slag intercepted by the hollow grid 34 on the platform plate 11 and cleans the dust collection bag 7.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A dust removal device for a laser cutting machine is characterized by comprising a workbench structure, a workbench bracket, a vacuum pump, an upper air suction structure, a side air suction structure, a tee joint and a dust collection bag, wherein the workbench bracket is arranged in the side wall of a machine tool frame; the space formed between the machine tool frame, the workbench bracket and the workbench structure is a cavity, the vacuum pump is arranged on the lower wall of the cavity, the upper air suction structure and the side air suction structure are communicated with the air inlet of the vacuum pump through a tee joint, and the dust collection bag is arranged outside the cavity and is communicated with the air outlet of the vacuum pump through a dust collection pipe;
the workbench structure comprises an enclosure and a platform plate, a sealing gasket is arranged between the enclosure and the upper end of a workbench bracket, only two parallel sides of the platform plate are fixedly connected to the inner wall of the enclosure, and a gap between the other two sides of the platform plate and the other two inner walls of the enclosure is a side dust suction hole;
the upper air suction structure comprises an upper dust suction hole, the upper dust suction hole is formed in one side of the cutting head, and the upper dust suction hole is communicated with the tee joint through a first air suction pipe;
the side air suction structure comprises a second air suction pipe, a side dust suction hole, a flow guide layer and a plurality of limiting support rods, the limiting support rods are fixedly connected to the inner wall of the workbench support in an equal height horizontal mode respectively, the flow guide layer is hung on the limiting support rods in an inverted cone shape, and two ends of the second air suction pipe are communicated with the lower end of the flow guide layer and a tee joint respectively; the side dust suction hole is hermetically connected with the second air suction pipe through the space at the upper part of the diversion layer;
a filter layer is arranged above the flow guide layer, the shape of the filter layer is the same as that of the flow guide layer, and a plurality of filter holes are arranged on the filter layer at equal intervals; be equipped with supporting pad one and supporting pad two between filter layer and the guiding layer, supporting pad one is closed cyclic annular setting, and the rigid coupling locates on the guiding layer upper end border, and on guiding layer lower extreme border was located to supporting pad two rigid couplings, the height of supporting pad one and supporting pad two was the same, and the clearance between filter layer and the guiding layer is the water conservancy diversion chamber.
2. The dust collector for laser cutting machine as claimed in claim 1, wherein the upper dust suction hole is fixed outside the side wall of the cutting head in a circular ring shape, and the first air suction pipe is telescopically arranged on a side beam on the side surface of the machine tool frame.
3. The dust removing device for a laser cutting machine as claimed in claim 1, wherein a cross support bar is provided on the filter layer, the cross support bar being horizontally disposed at an upper end of the filter layer.
4. The dust removing device for the laser cutting machine as claimed in claim 1, wherein a control panel is provided on a side wall of the machine frame, a storage battery and a controller are provided in the machine frame, the storage battery is electrically connected to the controller and the control panel, and the controller is electrically connected to the control panel.
5. The dust removing device for the laser cutting machine according to claim 4, wherein hydraulic rods are fixedly connected to four corners of the lower wall of the worktable support, lifting slide rails are arranged on the worktable support, and lifting slide grooves matched with the lifting slide rails are fixedly connected to corresponding positions of the machine tool frame; the storage battery is electrically connected with the four hydraulic rods, and the controller is electrically connected with the four hydraulic rods.
6. The dust removing device for the laser cutting machine according to claim 4, wherein the enclosure is hinged to an upper end of a side wall of the worktable bracket through a hinge shaft, an electromagnetic lock is fixedly connected to an upper end of the side wall of the worktable bracket away from the hinge shaft, and a handle is fixedly connected to a side wall of the enclosure away from the hinge shaft; the storage battery is electrically connected with the electromagnetic lock, and the controller is electrically connected with the electromagnetic lock.
7. The dust removing device for the laser cutting machine as claimed in claim 1, wherein a plurality of hollow grids arranged at equal intervals are fixedly connected to the side dust suction holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740048.6A CN113182673B (en) | 2021-07-01 | 2021-07-01 | Dust collector for laser cutting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740048.6A CN113182673B (en) | 2021-07-01 | 2021-07-01 | Dust collector for laser cutting machine |
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| CN113182673A CN113182673A (en) | 2021-07-30 |
| CN113182673B true CN113182673B (en) | 2021-09-03 |
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| CN202110740048.6A Active CN113182673B (en) | 2021-07-01 | 2021-07-01 | Dust collector for laser cutting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114055028B (en) * | 2021-11-29 | 2023-09-19 | 合肥常青机械股份有限公司 | Welding device with protection function for processing vehicle parts |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10244115A (en) * | 1997-03-03 | 1998-09-14 | Amada Co Ltd | Method of automatically extinguishing fire in dust collector and device therefor |
| WO2013178281A1 (en) * | 2012-06-01 | 2013-12-05 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Machine for thermal processing of workpieces and method for extinguishing a fire |
| CN206925813U (en) * | 2017-06-22 | 2018-01-26 | 厦门锦海山金属制品有限公司 | A kind of combinable simple support structure |
| CN207386835U (en) * | 2017-11-08 | 2018-05-22 | 东莞市广华精密机械电子有限公司 | A kind of laser cutting machine with Smoke Filter discharge |
| CN111299865A (en) * | 2020-04-22 | 2020-06-19 | 车成刚 | Efficient dust removal type laser cutting machine for machining thick metal plates |
| CN212681991U (en) * | 2020-07-22 | 2021-03-12 | 阜宁县宏智机械有限公司 | Working table for collecting machining scraps of mechanical parts |
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