CN213289048U - Pre-spot welding clamping device - Google Patents
Pre-spot welding clamping device Download PDFInfo
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- CN213289048U CN213289048U CN202021129873.XU CN202021129873U CN213289048U CN 213289048 U CN213289048 U CN 213289048U CN 202021129873 U CN202021129873 U CN 202021129873U CN 213289048 U CN213289048 U CN 213289048U
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Abstract
The utility model belongs to the technical field of clamping and positioning, in particular to a pre-spot welding clamping device, which comprises a main body fixing part, a first movable pressing part, a second movable pressing part, a linkage mechanism and a driving mechanism; the first movable pressing piece and the second movable pressing piece are arranged in a cavity in the main body fixing piece, the linkage mechanism is arranged outside the main body fixing piece, the first movable pressing piece is connected with one end of the linkage mechanism through a first guide rod, the second movable pressing piece is connected with the other end of the linkage mechanism through a second guide rod, the linkage mechanism drives the first movable pressing piece and the second movable pressing piece to simultaneously press the square assembly under the driving of the driving mechanism, so that the actions of the first movable pressing piece and the second movable pressing piece are synchronous, the clamping actions in different directions are synchronous, and the problem that the square assembly is deformed or scratched due to the fact that the clamping actions in different directions of the square assembly are inconsistent in the prior art is solved.
Description
Technical Field
The utility model belongs to the technical field of the clamping location, especially, relate to a spot welding clamping device in advance.
Background
In the positioning welding process of the square assembly, the welding process comprises the welding of two square iron devices, the welding of two square plastic devices and the combined welding of square devices made of different materials, the square assembly has different sizes and different combination forms, after the existing square components are combined, a positioning welding mechanism mostly adopts the air cylinders in different directions to act to clamp the positioning assembly, so that the clamping in different directions is sequential due to the fact that the acting speeds and strokes of different air cylinders are different, and the square assembly is deformed or generates friction scratch and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: aiming at the problem that the square assembly is deformed or generates friction scratch due to inconsistent action speeds and strokes of air cylinders in different directions of a positioning welding mechanism of the existing square assembly, a pre-spot welding clamping device is provided.
In order to solve the technical problem, the utility model provides a pre-spot welding clamping device, which comprises a main body fixing part, a first movable pressing part, a second movable pressing part, a linkage mechanism and a driving mechanism;
the square assembly positioning device comprises a main body fixing part, a linkage mechanism, a first movable pressing part, a second movable pressing part and a linkage mechanism, wherein a cavity for placing a square assembly is formed in the main body fixing part, the first movable pressing part and the second movable pressing part are arranged in the cavity in the main body fixing part and used for pressing and positioning two adjacent side surfaces of the square assembly, the linkage mechanism is arranged outside the main body fixing part, the first movable pressing part is connected with one end of the linkage mechanism through a first guide rod penetrating through the outer wall of the main body fixing part, the second movable pressing part is connected with the other end of the linkage mechanism through a second guide rod penetrating through the outer wall of the main body fixing part, the linkage mechanism is connected with the first movable pressing part and the second movable pressing part, the linkage mechanism drives the first movable pressing part and the second movable pressing part to simultaneously press towards the square assembly under the driving of the driving, The second movable pressing piece is arranged between the second movable pressing piece and the inner wall of the cavity.
Optionally, the linkage mechanism includes a first connecting plate, a second connecting plate, a third connecting plate, and a fourth connecting plate, which are connected in sequence, the first connecting plate is connected to the first movable pressing member through the first guide rod, the fourth connecting plate is connected to the second movable pressing member through the second guide rod, and the second connecting plate is connected to the driving mechanism.
Optionally, the tack welding clamping device further comprises a guide connected between the third connecting plate and the fourth connecting plate;
the guide piece comprises a combined pushing block and a follow-up wheel arranged on the combined pushing block, the combined pushing block is arranged on the fourth connecting plate, a guide groove is formed in the third connecting plate, the follow-up wheel is matched in the guide groove, and when the follow-up wheel moves from one end, far away from the main body fixing piece, of the guide groove to one end, close to the main body fixing piece, of the guide groove, the second movable pressing piece moves towards the square assembly.
Optionally, the linkage mechanism further comprises a sliding connection plate installed on the third connection plate, and the sliding connection plate is slidably connected to the main body fixing part.
Optionally, a hydraulic buffer is mounted on the body fixing member for limiting the clamping degree of the square assembly by the first movable pressing member.
Optionally, the main body fixing member includes a bottom plate, a first fixing plate, a second fixing plate, a third fixing plate, and a fourth fixing plate, and the first fixing plate, the second fixing plate, the third fixing plate, and the fourth fixing plate are sequentially connected to form a cavity for accommodating the square assembly.
Optionally, the tack welding fixture further comprises a first fixed pressing member mounted on an inner surface of the first fixing plate and a second fixed pressing member mounted on an inner surface of the second fixing plate, the first movable pressing member, the second movable pressing member, the first fixed pressing member and the second fixed pressing member collectively defining a position of the square assembly.
Optionally, the tack welding fixture further comprises a pressing mechanism for pressing and positioning the upper surface of the square assembly.
Optionally, the pressing mechanism includes a linear module, a servo motor, a pressing cylinder and a pressing block, the pressing cylinder is driven by the servo motor to slide on the linear module, the pressing block is mounted at the movable end of the pressing cylinder, and the pressing block is driven by the pressing cylinder to be close to or far away from the square assembly.
Optionally, a pre-spot welding abdicating hole is formed in the pressing block and used for abdicating the laser pre-spot welding light path.
The utility model discloses in the drive assembly drive the link gear motion, the link gear drives first activity casting die with second activity casting die extrudees simultaneously to two adjacent sides of square sub-assembly first activity casting die with under the extrusion of second activity casting die, two remaining sides of square sub-assembly are contradicted on the inner wall of cavity, make the position of square sub-assembly is injectd first activity casting die the second activity casting die with between the inner wall of cavity. The first movable pressing piece and the second movable pressing piece are connected through the linkage mechanism, so that the actions of the first movable pressing piece and the second movable pressing piece become synchronous, and the clamping actions of the square assembly in different directions become synchronous, and the problems of deformation or friction scratch of the square assembly caused by inconsistent clamping actions in different directions due to inconsistent action speeds and forming of cylinders in different directions of the square assembly in the prior art are solved.
In addition, under the little condition of square sub-assembly dimensional change, the spot welding clamping device in advance can be general, and when square sub-assembly dimensional change was great, according to the adjustable main part mounting of size of square sub-assembly, activity casting die and the fixed size that compresses tightly, reform transform into the form, the size that needs, the embodiment of the utility model provides an in advance the welding of spot welding clamping device form adjustable, the square sub-assembly of applicable multiple model.
Drawings
Fig. 1 is a schematic view of a pre-spot welding clamping device according to an embodiment of the present invention;
fig. 2 is a schematic partial structural view of a pre-spot welding clamping device according to an embodiment of the present invention;
fig. 3 is an assembly schematic diagram of a follower wheel of the pre-spot welding clamping device according to an embodiment of the present invention;
FIG. 4 is a schematic top view of the structure of FIG. 2;
fig. 5 is a schematic view of a pressing mechanism according to an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. a first fixing plate; 2. a second fixing plate; 3. a third fixing plate; 4. a fourth fixing plate; 5. a base plate; 6. a first fixed pressing member; 7. a second fixed pressing member; 8. a first movable pressing member; 9. a second movable pressing member; 10. a first connecting plate; 11. a second connecting plate; 12. a third connecting plate; 13. a fourth connecting plate; 14. a sliding connection plate; 15. a linear guide slider structure; 16. a first guide bar; 17. a drive mechanism; 18. a first pushing block; 19. a second pushing block; 20. a follower wheel; 21. a servo motor; 22. a linear module; 23. a pressing cylinder; 24. briquetting; 25. pre-spot welding of the abdicating hole; 26. a guide groove; 27. a hydraulic shock absorber; 28. a second guide bar.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 5, an embodiment of the present invention provides a pre-spot welding clamping device, which includes a main body fixing member, a first movable pressing member 8, a second movable pressing member 9, a linkage mechanism and a driving mechanism 17.
The main body fixing part is internally provided with a cavity for placing a square assembly, the first movable pressing part 8 and the second movable pressing part 9 are arranged in the cavity inside the main body fixing part and are used for pressing and positioning two adjacent side surfaces of the square assembly, the linkage mechanism is arranged outside the main body fixing part, the first movable pressing part 8 is connected with one end of the linkage mechanism through a first guide rod 16 penetrating through the outer wall of the main body fixing part, the second movable pressing part 9 is connected with the other end of the linkage mechanism through a second guide rod 28 penetrating through the outer wall of the main body fixing part, the linkage mechanism is connected with the first movable pressing part 8 and the second movable pressing part 9, and the linkage mechanism drives the first movable pressing part 8 and the second movable pressing part 9 to press towards the square assembly simultaneously under the driving of the driving mechanism 17, the square assembly is positioned between the first movable presser 8, the second movable presser 9 and the inner wall of the cavity.
When the square assembly is pressed and fixed, the square assembly is placed in the cavity inside the main body fixing piece through manual or mechanical automatic feeding, the first movable pressing piece 8 and the second movable pressing piece 9 which are positioned in different directions are synchronously unified for the clamping action of the square assembly through the linkage mechanism, the driving component drives the linkage mechanism to move, the linkage mechanism drives the first movable pressing piece 8 and the second movable pressing piece 9 to simultaneously press the two adjacent side surfaces of the square assembly, under the extrusion of the first movable pressing piece 8 and the second movable pressing piece 9, the two remaining side surfaces of the square assembly are butted against the inner wall of the cavity, so that the position of the square assembly is defined between the first movable presser 8, the second movable presser 9 and the inner wall of the cavity.
The first movable pressing piece 8 and the second movable pressing piece 9 are connected through a linkage mechanism, so that the actions of the first movable pressing piece 8 and the second movable pressing piece 9 become synchronous, and the clamping actions of the square assembly in different directions become synchronous, and the problems of deformation or friction scratch of the square assembly caused by inconsistent clamping actions in different directions due to inconsistent action speeds and forming of cylinders in different directions of the square assembly in the prior art are solved.
As shown in fig. 2, in an embodiment, the linkage mechanism includes a first connecting plate 10, a second connecting plate 11, a third connecting plate 12 and a fourth connecting plate 13 connected in sequence, the first connecting plate 10 is connected to the first movable pressing member 8 through a plurality of first guide rods 16, the fourth connecting plate 13 is connected to the second movable pressing member 9 through a plurality of second guide rods 28, the first guide rods 16 and the second guide rods 28 are connected to the body fixing member through linear bearings, the second connecting plate 11 is connected to the driving mechanism 17, and the driving mechanism 17 drives the second connecting plate 11 to move, so as to push the first connecting plate 10 and the third connecting plate 12 to move together.
The guide rods with different lengths can be selected according to the clamping stroke of the first movable pressing piece 8 and the second movable pressing piece 9.
In one embodiment, the driving mechanism 17 is a cylinder, and a telescopic end of the cylinder extends to push the second connecting plate 11 to move, so as to drive the first connecting plate 10 and the third connecting plate 12 to move together, the first connecting plate 10 drives the first movable pressing member 8 to move towards one side of the square assembly, the third connecting plate 12 drives the fourth connecting plate 13, and the fourth connecting plate 13 drives the second movable pressing member 9 to move towards the other side of the square assembly. And the telescopic end of the cylinder is retracted, and under the action of the linkage mechanism, the first movable pressing piece 8 and the second movable pressing piece 9 return simultaneously and are far away from the square assembly.
As shown in fig. 2 to 3, in an embodiment, the tack welding jig further includes a guide member connected between the third connecting plate 12 and the fourth connecting plate 13. The guide member includes a combined pusher block, to which the follower wheel 20 is mounted by means of a bolt, the combined pushing block is arranged on the fourth connecting plate 13, the third connecting plate 12 is provided with a guide groove 26, the follower wheels 20 are fitted in the guide grooves 26, the guide grooves 26 are obliquely arranged, the third connecting plate 12 moves along the extending direction of the third connecting plate 12, when the follower wheel 20 moves from the end of the guide groove 26 far away from the main body fixing part to the end of the guide groove 26 close to the main body fixing part, the second movable presser 9 moves toward the square assembly, whereas the second movable presser 9 moves away from the square assembly when the follower wheel 20 moves from the end of the guide groove 26 close to the body mount to the end of the guide groove 26 away from the body mount.
The second connecting plate 11 is connected with the driving mechanism 17, when the driving mechanism 17 drives the second connecting plate 11 to move, the first connecting plate 10 and the third connecting plate 12 are pushed to move together, the first connecting plate 10 drives the first movable pressing member 8 to move towards the square assembly through a plurality of first guide rods 16, meanwhile, the third connecting plate 12 drives the second movable pressing member 9 to move towards the square assembly under the action of the guide members, and the first movable pressing member 8 and the second movable pressing member 9 move synchronously to clamp the square assembly.
In one embodiment, as shown in fig. 2, the combined pushing block comprises a first pushing block 18 and a second pushing block 19 which are connected together through bolts, a waist hole is formed in the first pushing block 18, the follower wheel 20 is connected to the second pushing block 19, the relative position between the first pushing block 18 and the second pushing block 19 can be adjusted through the waist hole, the distance between the follower wheel 20 and the fourth connecting plate 13 can be finely adjusted, and the clamping degree of the second movable pressing member 9 on the square combination can be finely adjusted when the third connecting plate 12 pushes the fourth connecting plate 13 to move.
In one embodiment, the linkage mechanism further comprises a sliding connection plate 14 mounted on the third connection plate 12, and the sliding connection plate 14 is connected to the body mount through a linear guide slider structure 15. The slider of linear guide slider structure 15 is installed on sliding connection board 14, the guide rail of linear guide slider structure 15 is installed on the main part mounting, actuating mechanism 17 drives when third connecting plate 12 removes, sliding connection board 14 slides along the guide rail.
In particular, for the third connecting plate 12 with a longer cantilever part, the connection between the sliding connecting plate 14 and the linear guide slider structure 15 can support the cantilever part of the third connecting plate 12, so as to avoid the deformation of the third connecting plate 12 to affect the sliding of the follower wheel 20 in the guide groove 26.
As shown in fig. 1 to 2, in an embodiment, the main body fixing member includes a bottom plate 5, a first fixing plate 1, a second fixing plate 2, a third fixing plate 3, and a fourth fixing plate 4, and the first fixing plate 1, the second fixing plate 2, the third fixing plate 3, and the fourth fixing plate 4 are sequentially connected to form the cavity for accommodating the square assembly.
In one embodiment, a hydraulic buffer 27 is mounted on the body mount to limit the degree of clamping of the square pack by the first movable press 8. As shown in fig. 2, the hydraulic buffer 27 is mounted on the body fixing member, and the hydraulic buffer 27 is located between the first connecting plate 10 and the third fixing plate 3, and the hydraulic buffer 27 can finely adjust the moving distance of the first connecting plate 10, thereby adjusting the displacement of the first movable pressing member 8 close to or away from the square assembly, and finely adjusting the clamping degree of the first movable pressing member 8 to the square assembly.
As shown in fig. 2 and 4, in an embodiment, the tack welding clamping device further includes a first fixed pressing member 6 and a second fixed pressing member 7, the first fixed pressing member 6 is mounted on an inner surface of the first fixing plate 1, the second fixed pressing member 7 is mounted on an inner surface of the second fixing plate 2, and the first movable pressing member 8, the second movable pressing member 9, the first fixed pressing member 6 and the second fixed pressing member 7 collectively define a position of the square assembly.
The first connecting plate 10 is connected to a first movable pressing member 8 inside the body mount by a plurality of first guide rods 16 penetrating the third fixing plate 3, and the fourth connecting plate 13 is connected to a second movable pressing member 9 inside the body mount by a plurality of second guide rods 28 penetrating the fourth fixing plate 4.
As shown in fig. 1 and 5, in an embodiment, the tack welding clamping device further includes a pressing mechanism for pressing and positioning the upper surface of the square assembly. Inside the main body fixing part, the first movable pressing part 8, the second movable pressing part 9, the first fixed pressing part 6 and the second fixed pressing part 7 jointly define the position of the square assembly, the side surface around the square assembly is positioned and pressed, the pressing mechanism presses the square assembly above the square assembly, and the upper surface of the square assembly is pressed and positioned, so that the square assembly is completely clamped and positioned, and the square assembly cannot shake in the welding process.
As shown in fig. 5, in an embodiment, the pressing mechanism includes a linear module 22, a servo motor 21, a pressing cylinder 23 and a pressing block 24, the pressing cylinder 23 is mounted on the linear module 22, the pressing cylinder 23 is driven by the servo motor 21 to slide on the linear module 22, the pressing block 24 is mounted at a movable end of the pressing cylinder 23, the pressing block 24 is located above the square assembly, and the pressing block 24 is driven by the pressing cylinder 23 to move close to or away from the square assembly, so as to press or release the square assembly.
When the square assembly is clamped and positioned, the upper surface and four sides can be simultaneously positioned and clamped, specifically, after the square assembly is placed in the main body fixing part by the driving mechanism 17 at the initial position, the driving mechanism 17 acts to drive the first movable pressing part 8 and the second movable pressing part 9 to act, the oil pressure buffer 27 is adjusted, so that the clamping degree of the square assembly is just not deformed, meanwhile, the linear module 22 moves to the position, the pressing block 24 moves to the upper part of the square assembly, the pressing cylinder 23 acts, the pressing block 24 presses on the upper surface of the square assembly, and the square assembly is subjected to tack welding after being pressed and positioned.
When the square assembly is clamped and positioned, the four side surfaces of the square assembly can be clamped firstly, and then the upper surface is positioned and pressed. In this case, after the square assembly is placed in the main body fixing member, the driving mechanism 17 is operated to drive the first movable pressing member 8 and the second movable pressing member 9 to be operated, the hydraulic buffer 27 is adjusted to allow the square assembly to be clamped to a degree just enough without deformation, after the square assembly is initially clamped, the driving mechanism 17 returns to the initial position while the linear module 22 is moved to the position, the pressing block 24 is moved above the square assembly, the pressing cylinder 23 is operated to press the pressing block 24 against the upper surface of the square assembly, and the square assembly is tack-welded after being pressed and positioned.
In one embodiment, the pressing block 24 is provided with a pre-spot welding abdicating hole 25 for abdicating the laser pre-spot welding light path. And after the square assembly is clamped, performing pre-spot welding, and enabling a laser light path to pass through the pre-spot welding abdicating hole 25, so that the pressing block 24 does not block the laser light path while pressing the square assembly.
In another embodiment not shown in the drawings, the pressing mechanism further comprises a suction cup taking device, the suction cup taking device is installed on one side of the pressing block 24, the pressing cylinder 23 can drive the pressing block 24 and the suction cup taking device to move up and down together when acting, when in actual use, after a square assembly is automatically fed manually or mechanically, the pressing block 24 is pressed on the square assembly, after the pre-spot welding is completed, the linear module 22 drives the suction cup taking device to move to the position above the square assembly after the pre-spot welding is completed, the pressing cylinder 23 drives the suction cup taking device to descend to suck the square assembly, the pressing cylinder 23 returns after the sucking is completed, after the next square assembly is fed, the linear module 22 drives the suction cup taking device and the pressing block 24 to move, and the pressing block 24 is pressed down on the next square assembly, and simultaneously, the sucking disc taking device loosens the last square assembly which is sucked.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A pre-spot welding clamping device is characterized by comprising a main body fixing part, a first movable pressing part, a second movable pressing part, a linkage mechanism and a driving mechanism;
the square assembly positioning device comprises a main body fixing part, a linkage mechanism, a first movable pressing part, a second movable pressing part and a linkage mechanism, wherein a cavity for placing a square assembly is formed in the main body fixing part, the first movable pressing part and the second movable pressing part are arranged in the cavity in the main body fixing part and used for pressing and positioning two adjacent side surfaces of the square assembly, the linkage mechanism is arranged outside the main body fixing part, the first movable pressing part is connected with one end of the linkage mechanism through a first guide rod penetrating through the outer wall of the main body fixing part, the second movable pressing part is connected with the other end of the linkage mechanism through a second guide rod penetrating through the outer wall of the main body fixing part, the linkage mechanism is connected with the first movable pressing part and the second movable pressing part, the linkage mechanism drives the first movable pressing part and the second movable pressing part to simultaneously press towards the square assembly under the driving of the driving, The second movable pressing piece is arranged between the second movable pressing piece and the inner wall of the cavity.
2. The tack welding fixture of claim 1, wherein the linkage mechanism comprises a first link plate, a second link plate, a third link plate, and a fourth link plate connected in series, the first link plate being connected to the first moveable presser by the first guide bar, the fourth link plate being connected to the second moveable presser by the second guide bar, the second link plate being connected to the drive mechanism.
3. The tack welding fixture of claim 2, further comprising a guide connected between the third web and the fourth web;
the guide piece comprises a combined pushing block and a follow-up wheel arranged on the combined pushing block, the combined pushing block is arranged on the fourth connecting plate, a guide groove is formed in the third connecting plate, the follow-up wheel is matched in the guide groove, and when the follow-up wheel moves from one end, far away from the main body fixing piece, of the guide groove to one end, close to the main body fixing piece, of the guide groove, the second movable pressing piece moves towards the square assembly.
4. The tack welding fixture of claim 2, wherein the linkage further comprises a slip web mounted on the third web, the slip web being slidably connected to the body mount.
5. The tack welding fixture of claim 1, wherein a hydraulic buffer is mounted to said body mount for limiting the extent to which said first movable presser member grips said square pack.
6. The pre-spot welding fixture device of claim 1, wherein the body fixture comprises a bottom plate, a first fixing plate, a second fixing plate, a third fixing plate and a fourth fixing plate, and the first fixing plate, the second fixing plate, the third fixing plate and the fourth fixing plate are sequentially connected to form a cavity for accommodating a square assembly.
7. The tack welding fixture of claim 6, further comprising a first fixed press mounted on an inner surface of the first fixed plate and a second fixed press mounted on an inner surface of the second fixed plate, the first movable press, the second movable press, the first fixed press and the second fixed press collectively defining a location of the square pack.
8. The tack welding fixture of claim 1, further comprising a hold down mechanism for holding down an upper surface of the square assembly.
9. The tack welding fixture of claim 8, wherein the hold-down mechanism comprises a linear die set, a servo motor, a hold-down cylinder slidable on the linear die set by the servo motor, and a press block mounted at a movable end of the hold-down cylinder, the press block being movable toward and away from the square assembly by the hold-down cylinder.
10. The pre-spot welding clamping device according to claim 9, wherein a pre-spot welding abdicating hole is arranged on the pressing block and used for abdicating the laser pre-spot welding light path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021129873.XU CN213289048U (en) | 2020-06-16 | 2020-06-16 | Pre-spot welding clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021129873.XU CN213289048U (en) | 2020-06-16 | 2020-06-16 | Pre-spot welding clamping device |
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| Publication Number | Publication Date |
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| CN213289048U true CN213289048U (en) | 2021-05-28 |
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| CN202021129873.XU Active CN213289048U (en) | 2020-06-16 | 2020-06-16 | Pre-spot welding clamping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828944A (en) * | 2021-09-30 | 2021-12-24 | 广东利元亨智能装备股份有限公司 | Laser welding jig and welding method thereof |
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2020
- 2020-06-16 CN CN202021129873.XU patent/CN213289048U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828944A (en) * | 2021-09-30 | 2021-12-24 | 广东利元亨智能装备股份有限公司 | Laser welding jig and welding method thereof |
| CN113828944B (en) * | 2021-09-30 | 2023-09-19 | 广东利元亨智能装备股份有限公司 | Laser welding jig and welding method thereof |
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Effective date of registration: 20221207 Address after: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee after: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee after: Shenzhen Hanshi precision automatic control technology Co.,Ltd. Address before: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. |