CN221209886U - Metal powder recycling device of laser selective melting equipment - Google Patents
Metal powder recycling device of laser selective melting equipment Download PDFInfo
- Publication number
- CN221209886U CN221209886U CN202322641320.2U CN202322641320U CN221209886U CN 221209886 U CN221209886 U CN 221209886U CN 202322641320 U CN202322641320 U CN 202322641320U CN 221209886 U CN221209886 U CN 221209886U
- Authority
- CN
- China
- Prior art keywords
- metal powder
- threaded rod
- fixedly connected
- recycling device
- powder recycling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000843 powder Substances 0.000 title claims abstract description 60
- 239000002184 metal Substances 0.000 title claims abstract description 45
- 238000004064 recycling Methods 0.000 title claims abstract description 24
- 230000008018 melting Effects 0.000 title claims abstract description 20
- 238000002844 melting Methods 0.000 title claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 44
- 238000007639 printing Methods 0.000 claims abstract description 31
- 238000011084 recovery Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007648 laser printing Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Powder Metallurgy (AREA)
Abstract
The utility model relates to the technical field of metal powder recovery, and discloses a metal powder recovery recycling device of laser selective melting equipment, which comprises a device main body, wherein a dust collector component is arranged on the right side of the device main body, the device main body comprises a printing platform and a flattening component, a moving component is arranged at the top of the inner side of the device main body, a lifting component is arranged at the bottom of the moving component, a moving plate is sleeved on the outer side thread of a second threaded rod, a second driven gear is fixedly connected to the right side of the second threaded rod, a translation motor is fixedly connected to the right side of the device main body, a second driving gear is fixedly connected to an output shaft of the translation motor, and the dust collector component, the moving component and the lifting component are arranged, so that automatic cleaning and recovery of powder in the equipment can be realized, the efficiency is improved, the manual burden is reduced, and the top of the printing platform and the metal powder on the surface of a finished product can be cleaned and recovered into a dust collection bag in the dust collector component.
Description
Technical Field
The utility model relates to the technical field of metal powder recovery, in particular to a metal powder recovery recycling device of laser selective melting equipment.
Background
A laser selective melting apparatus is a technical apparatus that locally heats a material with a laser beam to achieve melting. It is commonly used in the fields of rapid prototyping, 3D printing, metal additive manufacturing, etc. Lasers are core devices that produce high energy, high power laser beams. The types of lasers commonly used are fiber lasers, carbon dioxide lasers and the like, and the selection of the lasers suitable for materials and processing requirements is very important; the optical system is used to precisely control and focus the laser beam to achieve localized heating of the material. The optical system generally comprises optical elements such as lenses, reflectors and the like, and parameters such as the diameter, the shape, the focal length and the like of the laser beam can be adjusted; the workbench is used for placing materials to be processed. The stage is typically movable in three dimensions to facilitate positioning and adjustment of the focal length to ensure accurate irradiation of the laser beam to the desired area; the control system is used for controlling the movement of the laser, the optical system and the workbench to realize the setting and adjustment of the processing parameters. The control system can set parameters such as laser power, scanning speed, scanning path and the like according to the requirements so as to meet different materials and processing requirements; the principle of operation of a laser selective melting apparatus is to focus a laser beam through an optical system onto a tiny area, causing the material temperature of the area to rise and rapidly reach the melting point. Subsequently, the workbench moves or adjusts the focal length, and controls the scanning position and track of the laser beam, so that the precise processing and melting of the material are realized.
However, after the finished product is printed, the existing laser selective melting equipment needs to clean up the metal powder on the workbench and on the surface of the finished product, the existing mode is generally that a manual handheld negative pressure pipe sucks out the metal powder and collects the metal powder in a designated container, each corner inside the equipment is difficult to clean up, the residual condition of the metal powder in the equipment is difficult to see clearly, the cleaning efficiency is low, the metal powder is added into a powder storage frame at the bottom of the workbench after the cleaning is finished, so that the steps required for recycling are increased, the metal powder is in contact with the outside, and the metal powder is easy to oxidize.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a metal powder recycling device of laser selective melting equipment, which aims to solve the problems in the prior art.
The utility model provides the following technical scheme: the metal powder recycling device of the laser selective melting equipment comprises a device main body, wherein a dust collector component is arranged on the right side of the device main body, the device main body comprises a printing platform and a flattening component, a moving component is arranged on the top of the inner side of the device main body, and a lifting component is arranged at the bottom of the moving component;
The movable assembly comprises a second threaded rod and a translation motor, the second threaded rod is movably sleeved with the device main body, a movable plate is sleeved on the outer side of the second threaded rod in a threaded manner, a second driven gear is fixedly connected to the right side of the second threaded rod, the translation motor is fixedly connected with the right side of the device main body, a second driving gear is fixedly connected to an output shaft of the translation motor, and the second driving gear is meshed with the second driven gear;
The lifting assembly comprises a lifting threaded rod and a lifting motor, wherein the lifting threaded rod is movably connected with the bottom of the movable plate, a third driven gear is fixedly sleeved at the top of the outer side of the lifting threaded rod, a threaded pipe is sleeved at the outer side thread of the lifting threaded rod, a lifting frame is fixedly connected with the bottom of the threaded pipe, negative pressure heads are arranged on two sides and the bottom of the lifting frame respectively, the lifting motor is fixedly connected with the bottom of the movable plate, a third driving gear is fixedly connected with an output shaft of the lifting motor, the third driving gear is meshed with the third driven gear, a negative pressure pipe is fixedly connected with the top of the lifting frame, and the other end of the negative pressure pipe is arranged on the dust collector assembly.
Further, the flattening component comprises a first threaded rod, a moving block is sleeved on the outer side of the first threaded rod in a threaded manner, a flattening plate is fixedly connected to the front face of the moving block, and a first driven gear is fixedly sleeved on the right side of the outer side of the first threaded rod.
Further, the flattening assembly further comprises a flattening motor, the flattening motor is fixedly connected with the back of the device main body, the output shaft of the flattening motor is fixedly connected with a first driving gear, and the first driving gear is meshed with a first driven gear.
Further, the bottom of movable block side has movably cup jointed the cylinder pole, the both ends and the device main part fixed connection of cylinder pole.
Furthermore, the front and the back of the side face of the movable plate are movably sleeved with limiting rods, and two ends of each limiting rod are fixedly connected with the device main body.
Further, the back fixedly connected with locating tube at lifting frame top, the inboard top activity of locating tube has cup jointed the locating lever, the top fixed connection of locating lever and movable plate.
Further, a dust removing bag is arranged on the inner side of the dust collector assembly, a recovery pipe is fixedly arranged at the bottom of the dust removing bag, and the other end of the recovery pipe is connected with a powder storage frame in the printing platform.
The utility model has the technical effects and advantages that:
1. According to the utility model, the dust collector assembly is arranged, the dust collector assembly is started, so that negative pressure is generated by the negative pressure pipe, powder in the device main body is sucked out from the negative pressure head and enters a dust collection bag in the dust collector assembly, the translation motor is started to drive the second driving gear to rotate, the second driven gear is driven to rotate through gear engagement, so that the second threaded rod is driven to rotate, the moving plate moves along the second threaded rod under the action of the thread thrust of the second threaded rod, the lifting motor is started to drive the third driving gear to rotate, so that the threaded pipe can lift under the action of the thread thrust of the lifting threaded rod, the lifting frame is driven to lift, the negative pressure head can move according to the shape of a printed finished product through the cooperation of the moving assembly and the lifting assembly, and therefore, the metal powder on the top of the printing platform and the surface of the finished product can be cleaned and recovered into the dust collection bag in the dust collector assembly.
2. According to the utility model, the recovery pipe is arranged, and after cleaning is finished, the recovery pipe is opened, so that the metal powder in the dust bag enters the powder storage frame at the bottom of the printing platform, and the recovery and recycling of the metal powder are realized, and the time for the metal powder to contact with the outside is reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic diagram of the main structure of the device of the present utility model.
FIG. 3 is a schematic view of a flattening assembly of the present utility model.
Fig. 4 is a schematic diagram of a moving assembly according to the present utility model.
Fig. 5 is a schematic structural diagram of a lifting assembly according to the present utility model.
The reference numerals are: 1. a device body; 2. a vacuum cleaner assembly; 201. a recovery pipe; 3. a printing platform; 4. a flattening assembly; 401. a first threaded rod; 402. a moving block; 403. flattening the plate; 404. a cylindrical rod; 405. a first driven gear; 406. a motor is spread horizontally; 407. a first drive gear; 5. a moving assembly; 501. a second threaded rod; 502. a moving plate; 503. a limit rod; 504. a second driven gear; 505. a translation motor; 506. a second drive gear; 6. a lifting assembly; 601. lifting the threaded rod; 602. a threaded tube; 603. a lifting frame; 604. a negative pressure head; 605. a third driven gear; 606. a lifting motor; 607. a third drive gear; 608. a positioning tube; 609. a positioning rod; 610. a negative pressure pipe.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1-5, the utility model provides a metal powder recycling device of a laser selective melting device, which comprises a device main body 1, wherein a dust collector component 2 is arranged on the right side of the device main body 1, the device main body 1 comprises a printing platform 3 and a flattening component 4, a moving component 5 is arranged on the top of the inner side of the device main body 1, and a lifting component 6 is arranged at the bottom of the moving component 5;
The moving assembly 5 comprises a second threaded rod 501 and a translation motor 505, wherein the second threaded rod 501 is movably sleeved with the device main body 1, a moving plate 502 is sleeved on the outer side of the second threaded rod 501 in a threaded manner, a second driven gear 504 is fixedly connected to the right side of the second threaded rod 501, the translation motor 505 is fixedly connected to the right side of the device main body 1, a second driving gear 506 is fixedly connected to an output shaft of the translation motor 505, and the second driving gear 506 is meshed with the second driven gear 504;
the lifting assembly 6 comprises a lifting threaded rod 601 and a lifting motor 606, the lifting threaded rod 601 is movably connected with the bottom of the movable plate 502, a third driven gear 605 is fixedly sleeved at the top of the outer side of the lifting threaded rod 601, a threaded pipe 602 is sleeved on the outer side of the lifting threaded rod 601, a lifting frame 603 is fixedly connected to the bottom of the threaded pipe 602, negative pressure heads 604 are arranged on two sides and the bottom of the lifting frame 603, the lifting motor 606 is fixedly connected with the bottom of the movable plate 502, a third driving gear 607 is fixedly connected to an output shaft of the lifting motor 606, the third driving gear 607 is meshed with the third driven gear 605, a negative pressure pipe 610 is fixedly connected to the top of the lifting frame 603, and the other end of the negative pressure pipe 610 is arranged on the dust collector assembly 2.
In the embodiment of the application, the laser printing component and the printing platform 3 are both in the prior art, not shown in detail in the drawings, the printing platform 3 is in a liftable structure, the bottom of the printing platform 3 is provided with a powder storage frame which can be pushed out to the top of the printing platform 3, a leveling motor 406 is started to drive a first threaded rod 401 to rotate, so that a moving block 402 drives a leveling plate 403 to horizontally move on the top of the printing platform 3, metal powder pushed out by the powder storage frame is evenly leveled on the surface of the printing platform 3, then the laser printing component melts the metal powder into a set shape to realize the printing purpose, after the printing of a finished product is finished, a dust collector component 2 is started, a negative pressure pipe 610 is made to generate negative pressure, so that powder in a device main body 1 is sucked out from a negative pressure head 604 and enters a dust removing bag in the dust collector component 2, a translation motor 505 is started to drive a second driving gear 506 to rotate, the second driven gear 504 is driven to rotate through gear engagement, thereby driving the second threaded rod 501 to rotate, under the action of the thread thrust of the second threaded rod 501, the movable plate 502 moves along the second threaded rod 501, the lifting motor 606 is started to drive the third driving gear 607 to rotate, thereby enabling the threaded pipe 602 to lift under the action of the thread thrust of the lifting threaded rod 601, and then driving the lifting frame 603 to lift, through the cooperation of the moving component 5 and the lifting component 6, the negative pressure head 604 can be moved according to the shape of the printed finished product, thereby cleaning and recovering the top of the printing platform 3 and the metal powder on the surface of the finished product into the dust bag in the dust collector component 2, after the cleaning is completed, the recovery pipe 201 is opened, the metal powder in the dust bag enters the powder storage frame at the bottom of the printing platform 3, thereby realizing the recycling of the metal powder.
In a preferred embodiment, the flattening assembly 4 comprises a first threaded rod 401, a moving block 402 is sleeved on the outer side of the first threaded rod 401 in a threaded manner, a flattening plate 403 is fixedly connected to the front surface of the moving block 402, and a first driven gear 405 is fixedly sleeved on the right side of the outer side of the first threaded rod 401.
In a preferred embodiment, the flattening assembly 4 further includes a flattening motor 406, the flattening motor 406 is fixedly connected to the back surface of the apparatus body 1, the output shaft of the flattening motor 406 is fixedly connected to a first driving gear 407, and the first driving gear 407 is meshed with the first driven gear 405.
In a preferred embodiment, the bottom of the side of the moving block 402 is movably sleeved with a cylindrical rod 404, and two ends of the cylindrical rod 404 are fixedly connected with the device body 1.
In a preferred embodiment, the front and back sides of the side surface of the moving plate 502 are movably sleeved with a limiting rod 503, and two ends of the limiting rod 503 are fixedly connected with the device main body 1.
In a preferred embodiment, a positioning tube 608 is fixedly connected to the back of the top of the lifting frame 603, and a positioning rod 609 is movably sleeved on the top of the inner side of the positioning tube 608, and the positioning rod 609 is fixedly connected to the top of the moving plate 502.
In a preferred embodiment, a dust removing bag is arranged on the inner side of the dust collector assembly 2, a recovery pipe 201 is fixedly arranged at the bottom of the dust removing bag, and the other end of the recovery pipe 201 is connected with a powder storage frame in the printing platform 3.
The working principle of the utility model is as follows: the laser printing component and the printing platform 3 are both in the prior art, not shown in detail in the drawings, the printing platform 3 is in a liftable structure, the bottom of the printing platform 3 is provided with a powder storage frame, the powder storage frame can be pushed out to the top of the printing platform 3, a leveling motor 406 is started to drive a first threaded rod 401 to rotate, so that a movable block 402 drives a leveling plate 403 to horizontally move at the top of the printing platform 3, metal powder pushed out by the powder storage frame is evenly leveled on the surface of the printing platform 3, then the laser printing component melts the metal powder into a set shape, the printing purpose is achieved, after printing of a finished product is completed, a dust collector component 2 is started, a negative pressure pipe 610 is made to generate negative pressure, powder in a device main body 1 is sucked out from a negative pressure head 604 and enters a dust removing bag in the dust collector component 2, a translation motor 505 is started to drive a second driving gear 506 to rotate, the second driven gear 504 is driven to rotate through gear engagement, thereby driving the second threaded rod 501 to rotate, under the action of the thread thrust of the second threaded rod 501, the movable plate 502 moves along the second threaded rod 501, the lifting motor 606 is started to drive the third driving gear 607 to rotate, thereby enabling the threaded pipe 602 to lift under the action of the thread thrust of the lifting threaded rod 601, and then driving the lifting frame 603 to lift, through the cooperation of the moving component 5 and the lifting component 6, the negative pressure head 604 can be moved according to the shape of the printed finished product, thereby cleaning and recovering the top of the printing platform 3 and the metal powder on the surface of the finished product into the dust bag in the dust collector component 2, after the cleaning is completed, the recovery pipe 201 is opened, the metal powder in the dust bag enters the powder storage frame at the bottom of the printing platform 3, thereby realizing the recycling of the metal powder.
Finally: the foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (7)
1. The utility model provides a metal powder recycling device of laser selective melting equipment, includes device main part (1), its characterized in that: the dust collector comprises a dust collector body (1), a dust collector assembly (2) is arranged on the right side of the dust collector body (1), the dust collector body (1) comprises a printing platform (3) and a flattening assembly (4), a moving assembly (5) is arranged on the top of the inner side of the dust collector body (1), and a lifting assembly (6) is arranged at the bottom of the moving assembly (5);
The movable assembly (5) comprises a second threaded rod (501), a translation motor (505), the second threaded rod (501) is movably sleeved with the device main body (1), a movable plate (502) is sleeved on the outer side of the second threaded rod (501) in a threaded manner, a second driven gear (504) is fixedly connected to the right side of the second threaded rod (501), the translation motor (505) is fixedly connected with the right side of the device main body (1), a second driving gear (506) is fixedly connected to an output shaft of the translation motor (505), and the second driving gear (506) is meshed with the second driven gear (504);
Lifting assembly (6) are including lift threaded rod (601) and elevator motor (606), the bottom swing joint of lift threaded rod (601) and movable plate (502), third driven gear (605) have been cup jointed to the top in the lift threaded rod (601) outside, threaded pipe (602) have been cup jointed to the outside screw thread of lift threaded rod (601), the bottom fixedly connected with lifting frame (603) of threaded pipe (602), both sides and the bottom of lifting frame (603) all are provided with negative pressure head (604), the bottom fixed connection of elevator motor (606) and movable plate (502), the output shaft fixedly connected with third driving gear (607) of elevator motor (606), third driving gear (607) and third driven gear (605) intermeshing, the top fixedly connected with negative pressure pipe (610) of lifting frame (603), the other end of negative pressure pipe (610) is installed on dust catcher subassembly (2).
2. The metal powder recycling device of the selective laser melting equipment according to claim 1, wherein the metal powder recycling device is characterized in that: the flattening assembly (4) comprises a first threaded rod (401), a moving block (402) is sleeved on the outer side of the first threaded rod (401) in a threaded mode, a flattening plate (403) is fixedly connected to the front face of the moving block (402), and a first driven gear (405) is fixedly sleeved on the right side of the outer side of the first threaded rod (401).
3. The metal powder recycling device of the selective laser melting equipment according to claim 1, wherein the metal powder recycling device is characterized in that: the flattening assembly (4) further comprises a flattening motor (406), the flattening motor (406) is fixedly connected with the back face of the device main body (1), the output shaft of the flattening motor (406) is fixedly connected with a first driving gear (407), and the first driving gear (407) is meshed with the first driven gear (405) mutually.
4. The metal powder recycling device of the selective laser melting equipment according to claim 2, wherein the metal powder recycling device is characterized in that: the bottom of movable block (402) side has movably sleeved with cylinder pole (404), the both ends and the device main part (1) fixed connection of cylinder pole (404).
5. The metal powder recycling device of the selective laser melting equipment according to claim 1, wherein the metal powder recycling device is characterized in that: limiting rods (503) are movably sleeved on the front face and the back face of the side face of the moving plate (502), and two ends of each limiting rod (503) are fixedly connected with the device body (1).
6. The metal powder recycling device of the selective laser melting equipment according to claim 1, wherein the metal powder recycling device is characterized in that: the back fixedly connected with registration arm (608) at lift frame (603) top, locating lever (609) have been cup jointed in the activity of the inboard top of registration arm (608), the top fixed connection of locating lever (609) and movable plate (502).
7. The metal powder recycling device of the selective laser melting equipment according to claim 1, wherein the metal powder recycling device is characterized in that: the dust collector is characterized in that a dust collection bag is arranged on the inner side of the dust collector assembly (2), a recovery pipe (201) is fixedly arranged at the bottom of the dust collection bag, and the other end of the recovery pipe (201) is connected with a powder storage frame in the printing platform (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322641320.2U CN221209886U (en) | 2023-09-26 | 2023-09-26 | Metal powder recycling device of laser selective melting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322641320.2U CN221209886U (en) | 2023-09-26 | 2023-09-26 | Metal powder recycling device of laser selective melting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221209886U true CN221209886U (en) | 2024-06-25 |
Family
ID=91571864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322641320.2U Active CN221209886U (en) | 2023-09-26 | 2023-09-26 | Metal powder recycling device of laser selective melting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221209886U (en) |
-
2023
- 2023-09-26 CN CN202322641320.2U patent/CN221209886U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106392338B (en) | A kind of solar battery sheet waste paper cutter device | |
| CN208033201U (en) | The cleaning device of battery pole piece coating | |
| CN112846527B (en) | Laser scribing method for photovoltaic cell processing | |
| CN221209886U (en) | Metal powder recycling device of laser selective melting equipment | |
| CN113695742B (en) | Laser welding equipment with dust removal function | |
| CN213998272U (en) | Double-station laser welding device for automobile parts | |
| CN116460431A (en) | Laser welding machine with dust blowing mechanism | |
| CN215698919U (en) | Laser cutting device | |
| CN209811538U (en) | Positioning device for automatic welding of automobile parts | |
| CN114029622A (en) | Intelligent laser cleaning equipment for surface of metal material | |
| CN113275756B (en) | L-shaped optical path device and using method | |
| CN218836496U (en) | Cutting mechanism for processing metal plate | |
| CN215466691U (en) | L-shaped light path device | |
| CN219274796U (en) | Laser welding equipment | |
| CN211840593U (en) | Laser welding device | |
| CN217224053U (en) | Multi-pressure head laser welding mechanism | |
| CN219900716U (en) | High-speed galvanometer laser welding machine | |
| CN221110297U (en) | Laser welding device convenient to clearance residue | |
| CN212918061U (en) | Automatic welding equipment of laser | |
| CN205414709U (en) | Laser cutting machine | |
| CN220880966U (en) | Exchange platform laser cutting machine | |
| CN220278594U (en) | Go up unloading laser cutting machine | |
| CN216990285U (en) | Intelligent welding robot with smoke and dust purification performance | |
| CN215509485U (en) | Welding piece fixing device for robot laser welding machine | |
| CN213969500U (en) | Dust removal device of laser cutting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |