CN113664372A - Laser welding machine with purifier - Google Patents
Laser welding machine with purifier Download PDFInfo
- Publication number
- CN113664372A CN113664372A CN202111077546.3A CN202111077546A CN113664372A CN 113664372 A CN113664372 A CN 113664372A CN 202111077546 A CN202111077546 A CN 202111077546A CN 113664372 A CN113664372 A CN 113664372A
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- CN
- China
- Prior art keywords
- assembly
- welding
- purification
- fixing
- fixed
- 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.)
- Pending
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- 238000003466 welding Methods 0.000 title claims abstract description 102
- 238000000746 purification Methods 0.000 claims abstract description 38
- 239000000779 smoke Substances 0.000 claims abstract description 9
- 238000006477 desulfuration reaction Methods 0.000 claims description 24
- 230000023556 desulfurization Effects 0.000 claims description 24
- 230000035939 shock Effects 0.000 claims description 12
- 210000000078 claw Anatomy 0.000 claims description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 10
- 239000003546 flue gas Substances 0.000 claims description 10
- 230000006872 improvement Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 230000002526 effect on cardiovascular system Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 239000012466 permeate Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 210000004204 blood vessel Anatomy 0.000 abstract description 2
- GUWKQWHKSFBVAC-UHFFFAOYSA-N [C].[Au] Chemical compound [C].[Au] GUWKQWHKSFBVAC-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a laser welding machine with a purification device, which comprises a workbench, a fixed assembly, a welding assembly and a purification assembly, wherein the fixed assembly is arranged above the workbench, the welding assembly is arranged right above the fixed assembly, the purification assembly is arranged above the welding assembly, an article to be welded is fixed by the fixed assembly, the welding assembly is used for gold-carbon blood vessel welding, smoke generated during welding is absorbed and treated by the purification assembly, vertical supports are arranged on two sides of the top of the workbench, the welding assembly is arranged between the two vertical supports, and the welding assembly comprises a motor, a screw rod, a movable sleeve, a telescopic rod and a laser welding head; the motor, the screw rod, the movable sleeve, the telescopic rod and the laser welding head are mutually matched for use, so that articles to be welded can be stably welded, and the laser welding head can be moved freely during welding, so that the welding is very convenient.
Description
Technical Field
The invention relates to the field of welding equipment, in particular to a laser welding machine with a purification device.
Background
In laser welding, high-energy laser pulses are used for locally heating materials in micro-areas, energy radiated by laser is diffused into the materials through heat conduction, and the materials are melted to form a specific molten pool. The novel welding mode is mainly used for welding thin-wall materials and precise parts, spot welding, butt welding, stitch welding, seal welding and the like can be realized, the depth-width ratio is high, the width of a welding seam is small, a heat affected zone is small, deformation is small, the welding speed is high, the welding seam is flat and attractive, treatment is not needed or only simple treatment is needed after welding, the welding seam is high in quality, free of air holes, capable of being accurately controlled, small in focusing light spot, high in positioning accuracy and easy to realize automation.
In the market, the existing common laser welding machine does not have a purification device, can not carry out desulfurization treatment on smoke generated after laser welding, brings pollution to the environment where workers are located, and is not beneficial to the health of the workers; the laser welding head continuously works, the temperature is high, if the temperature cannot be timely reduced, the welding head can be damaged, and the welding cost is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a laser welding machine with a purification device.
The technical scheme of the invention is realized as follows: through the mutual cooperation use between motor, lead screw, movable sleeve, telescopic link and the laser welder head, can carry out stable welding to needs welded article, can remove the direction of laser welder head very convenient when the welding at will when the welding.
A laser welding machine with a purification device comprises a workbench, a fixing assembly, a welding assembly and a purification assembly, wherein the fixing assembly is arranged above the workbench, the welding assembly is arranged right above the fixing assembly, the purification assembly is arranged above the welding assembly, objects to be welded are fixed through the fixing assembly, and through gold cardiovascular welding processing of the welding assembly, smoke generated during welding is absorbed and treated through the purification assembly, vertical supports are arranged on two sides of the top of the workbench, the welding assembly is arranged between the two vertical supports and comprises a motor, a lead screw, a movable sleeve, a telescopic rod and a laser welding head, the motor is arranged on one side of each vertical support, the output end of the motor is connected with the lead screw, the movable sleeve is sleeved on the surface of the lead screw, and the bottom of the movable sleeve is connected with the telescopic rod, the bottom of the telescopic rod is connected with a laser welding head, a screw rod is driven by a motor, the screw rod drives a movable sleeve, and the movable sleeve drives the laser welding head to move left and right for welding.
The further improvement lies in that: the top of workstation is provided with unable adjustment base, unable adjustment base's top is provided with fixed subassembly, stabilizes fixedly through fixed subassembly to article, is favorable to follow-up weldment work.
The further improvement lies in that: the fixing assembly comprises a first fixing base, a telescopic cylinder, a fixing pressing plate and a fixing claw, wherein the first fixing base is arranged on one side of the top of the fixing base, the telescopic cylinder is arranged on one side of the first fixing base, the output end of the telescopic cylinder is connected with the fixing pressing plate, the fixing claw is arranged above the fixing pressing plate, the fixing pressing plate is driven by the telescopic cylinder to fix one side of an article, and the upper part and the lower part of the article are fixed by the fixing claw.
The further improvement lies in that: the opposite side of unable adjustment base is provided with the second fixing base, one side of second fixing base is provided with the shock pad, and the shock pad is the rubber material, and through putting article in one side of second fixing base, the damage can not appear when fixed through setting up the protection article of shock pad.
The further improvement lies in that: the utility model discloses a desulfurization device, including erect support, purification subassembly, suction pump, desulfurization case, fan, communicating pipe, sucking pump, desulfurization case, the top of erecting the support is provided with the purifying box, the bottom of purifying box is provided with the fan, the back connection of purifying box has communicating pipe, the suction pump is connected to one side of communicating pipe, the below of suction pump is provided with the desulfurization case, takes out the flue gas that produces when will weld through the fan, drives communicating pipe through the suction pump and brings the flue gas into the desulfurization case, does desulfurization treatment.
The further improvement lies in that: the lower part of the fan is provided with a filter screen plate which is detachable, and the flue gas is adsorbed and filtered by the filter screen plate.
The further improvement lies in that: the inside of purifying box is provided with the suction pump, the below of suction pump is provided with the shower nozzle, and the laser welder head sprays the cooling through the shower nozzle after accomplishing welding and handles, great improvement the life of soldered connection.
Compared with the prior art, the invention has the following advantages: the laser welding machine with the purification device can stably weld articles to be welded through the mutual matching use of the motor, the lead screw, the movable sleeve, the telescopic rod and the laser welding head, the direction of the laser welding head can be moved at will during welding is very convenient, the welded articles can be stably fixed through the mutual matching use of the fixed base, the first fixed base, the telescopic cylinder, the fixed pressing plate and the fixed claw, the position is not easy to move during welding, the welding quality is ensured without damaging the articles during fixing through the arrangement of the shock pad, the smoke generated during welding can be absorbed through the matching use of the purification box, the fan, the communication pipe, the air suction pump and the desulfurization box, the surrounding environment quality is greatly improved through the desulfurization processing of the desulfurization box, and the pollution to the environment where a worker is located is prevented, is beneficial to the health of workers.
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, and 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 these drawings without creative efforts.
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is a side cross-sectional view of the present invention;
FIG. 3 is a schematic view of a water tank of the present invention.
The attached drawings are as follows: 1. a work table; 2. a vertical support; 3. a motor; 4. a screw rod; 5. a movable sleeve; 6. a telescopic rod; 7. a laser welding head; 8. a fixed base; 9. a first fixed seat; 10. a telescopic cylinder; 11. fixing the pressing plate; 12. a fixed jaw; 13. a second fixed seat; 14. a shock pad; 15. a purification box; 16. a fan; 17. a communicating pipe; 18. an air pump; 19. a desulfurization box; 20. a filter screen plate; 21. a water pump; 22. a spray head; 23. a water tank; 24. and (7) a cover plate.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1 to 3, the embodiment of the invention discloses a laser welding machine with a purification device, which comprises a workbench 1, a fixed assembly, a welding assembly and a purification assembly, wherein the fixed assembly is arranged above the workbench 1, the welding assembly is arranged right above the fixed assembly, the purification assembly is arranged above the welding assembly, an article to be welded is fixed through the fixed assembly, the welding assembly is used for gold-cardiovascular welding processing, smoke generated during welding is absorbed and treated through the purification assembly, vertical supports 2 are arranged on two sides of the top of the workbench 1, the welding assembly is arranged between the two vertical supports 2 and comprises a motor 3, a screw rod 4, a movable sleeve 5, a telescopic rod 6 and a laser welding head 7, the motor 3 is arranged on one side of each vertical support 2, the motor model is Y90S-2, the output end of the motor 3 is connected with a screw rod 4, a movable sleeve 5 is sleeved on the surface of the screw rod 4, the bottom of the movable sleeve 5 is connected with a telescopic rod 6, the bottom of the telescopic rod 6 is connected with a laser welding head 7, the screw rod 4 is driven by the motor 3, the screw rod 4 drives the movable sleeve 5, and the movable sleeve 5 drives the laser welding head 7 to move left and right for welding.
The top of workstation 1 is provided with unable adjustment base 8, unable adjustment base 8's top is provided with fixed subassembly, stabilizes fixedly through fixed subassembly to article, is favorable to follow-up weldment work.
The fixing assembly comprises a first fixing seat 9, a telescopic cylinder 10, a fixing pressing plate 11 and a fixing claw 12, wherein the first fixing seat 9 is arranged on one side of the top of the fixing base 8, the telescopic cylinder 10 is arranged on one side of the first fixing seat 9, the output end of the telescopic cylinder 10 is connected with the fixing pressing plate 11, the fixing claw 12 is arranged above the fixing pressing plate 11, the fixing pressing plate 11 is driven by the telescopic cylinder 10 to fix one side of an article, and the upper portion and the lower portion of the article are fixed by the fixing claw 12.
The opposite side of unable adjustment base 8 is provided with second fixing base 13, one side of second fixing base 13 is provided with shock pad 14, and shock pad 14 is the rubber material, and through putting article in one side of second fixing base 13 and through the setting up of shock pad 14 protection article can not appear damaging when fixed.
The top of erecting support 2 is provided with the purification subassembly, the purification subassembly includes purifying box 15, fan 16, communicating pipe 17, aspiration pump 18 and desulfurization case 19, the top of erecting support 2 is provided with purifying box 15, the bottom of purifying box 15 is provided with fan 16, the back connection of purifying box 15 has communicating pipe 17, aspiration pump 18 is connected to one side of communicating pipe 17, the below of aspiration pump 18 is provided with desulfurization case 19, takes out the flue gas that produces when will welding through fan 16, drives communicating pipe 17 through aspiration pump 18 and brings the flue gas into desulfurization case 19, does desulfurization treatment.
A filter screen plate 20 is arranged below the fan 16, the filter screen plate 20 is detachable, and the flue gas is adsorbed and filtered through the filter screen plate 20.
The inside of purifying box 15 is provided with suction pump 21, the below of suction pump 21 is provided with shower nozzle 22, sprays the cooling through shower nozzle 22 to welding completion back laser welder head 7 and handles, great improvement the life of soldered connection.
Example 2
One side of desulfurization case 19 is provided with water tank 23, the top of water tank 23 is provided with apron 24, communicating pipe 17 is being connected to one side of water tank 23, suction pump 21 is connecting water tank 23 through communicating pipe 17, and with desulfurization case 19 public communicating pipe 17, still improved the functional of device when great reduction device's cost
When the laser welding machine with the purification device is used, an article to be welded is fixed through the fixing assembly, gold and blood vessels are welded through the welding assembly, smoke generated during welding permeates through the purification assembly to be absorbed and treated, the motor 3 drives the lead screw 4, the lead screw 4 drives the movable sleeve 5, the movable sleeve 5 drives the laser welding head 7 to move left and right for welding, the article is stably fixed through the fixing assembly, subsequent welding work is facilitated, the telescopic cylinder 10 drives the fixed pressing plate 11 to fix one side of the article, the upper part and the lower part of the article are fixed through the fixed claws 12, the article is placed on one side of the second fixed seat 13, the article is protected from being damaged during fixing through the arrangement of the shock pad 14, the smoke generated during welding is pumped out through the fan 16, the suction pump 18 drives the communicating pipe 17 to bring the smoke into the desulfurization box 19, and desulfurization treatment is carried out, the flue gas is subjected to adsorption filtration treatment through the filter screen plate 20, and the laser welding head 7 after welding is subjected to spray cooling treatment through the spray head 22, so that the service life of the welding head is greatly prolonged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A laser welding machine with a purification device comprises a workbench (1), a fixed assembly, a welding assembly and a purification assembly, and is characterized in that the fixed assembly is arranged above the workbench (1), the welding assembly is arranged right above the fixed assembly, the purification assembly is arranged above the welding assembly, objects to be welded are fixed through the fixed assembly, the welding assembly is used for gold cardiovascular welding, smoke generated during welding permeates through the purification assembly to be absorbed and processed, vertical supports (2) are arranged on two sides of the top of the workbench (1), the welding assembly is arranged between the two vertical supports (2) and comprises a motor (3), a lead screw (4), a movable sleeve (5), a telescopic rod (6) and a laser welding head (7), the motor (3) is arranged on one side of each vertical support (2), the output end of the motor (3) is connected with a screw rod (4), a movable sleeve (5) is sleeved on the surface of the screw rod (4), a telescopic rod (6) is connected to the bottom of the movable sleeve (5), and a laser welding head (7) is connected to the bottom of the telescopic rod (6).
2. The laser welding machine with the purification device according to claim 1, characterized in that: the top of workstation (1) is provided with unable adjustment base (8), the top of unable adjustment base (8) is provided with fixed subassembly, stabilizes fixedly through fixed subassembly to article, is favorable to follow-up weldment work.
3. The laser welding machine with the purification device according to claim 1, characterized in that: the fixing assembly comprises a first fixing seat (9), a telescopic cylinder (10), a fixing pressing plate (11) and a fixing claw (12), wherein the first fixing seat (9) is arranged on one side of the top of the fixing base (8), the telescopic cylinder (10) is arranged on one side of the first fixing seat (9), the output end of the telescopic cylinder (10) is connected with the fixing pressing plate (11), the fixing claw (12) is arranged above the fixing pressing plate (11), the fixing pressing plate (11) is driven to fix one side of an article through the telescopic cylinder (10), and the upper portion and the lower portion of the article are fixed through the fixing claw (12).
4. The laser welding machine with the purification device according to claim 2, characterized in that: the opposite side of unable adjustment base (8) is provided with second fixing base (13), one side of second fixing base (13) is provided with shock pad (14), and shock pad (14) are the rubber material, and through putting article in one side of second fixing base (13) and through the setting up of shock pad (14) protection article can not appear damaging when fixed.
5. The laser welding machine with the purification device according to claim 1, characterized in that: the utility model discloses a desulfurization device, including erect support (2), purification subassembly, sucking pump (18), desulfurization case (19), purification subassembly, purification case (15), communicating pipe (17) are provided with at the top of erecting support (2), the bottom of purification case (15) is provided with fan (16), the back connection of purification case (15) has communicating pipe (17), sucking pump (18) is connected to one side of communicating pipe (17), the below of sucking pump (18) is provided with desulfurization case (19), takes out the flue gas that produces when welding through fan (16), drives communicating pipe (17) through sucking pump (18) and brings the flue gas into desulfurization case (19), does desulfurization treatment.
6. The laser welding machine with the purification device according to claim 5, characterized in that: a filter screen plate (20) is arranged below the fan (16), the filter screen plate (20) is detachable, and the flue gas is subjected to adsorption filtration treatment through the filter screen plate (20).
7. The laser welding machine with the purification device according to claim 5, characterized in that: the inside of purifying box (15) is provided with suction pump (21), the below of suction pump (21) is provided with shower nozzle (22), sprays the cooling through shower nozzle (22) to welding completion back laser welder head (7) and handles, great improvement the life of welder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111077546.3A CN113664372A (en) | 2021-09-15 | 2021-09-15 | Laser welding machine with purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111077546.3A CN113664372A (en) | 2021-09-15 | 2021-09-15 | Laser welding machine with purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113664372A true CN113664372A (en) | 2021-11-19 |
Family
ID=78549394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111077546.3A Pending CN113664372A (en) | 2021-09-15 | 2021-09-15 | Laser welding machine with purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113664372A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115350537A (en) * | 2022-08-02 | 2022-11-18 | 昆山顺天金属制品有限公司 | Smoke removal device for metal product processing |
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| CN106112260A (en) * | 2016-08-24 | 2016-11-16 | 江苏中科大港激光科技有限公司 | Laser-beam welding machine with purifier |
| CN209288583U (en) * | 2018-12-08 | 2019-08-23 | 雄斌科技（苏州）有限公司 | A kind of combined metal pipe bonding machine |
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Application publication date: 20211119 |
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| RJ01 | Rejection of invention patent application after publication |