CN220259971U - Battery spot welding jig and battery production line - Google Patents
Battery spot welding jig and battery production line Download PDFInfo
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- CN220259971U CN220259971U CN202321399743.1U CN202321399743U CN220259971U CN 220259971 U CN220259971 U CN 220259971U CN 202321399743 U CN202321399743 U CN 202321399743U CN 220259971 U CN220259971 U CN 220259971U
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- 238000003466 welding Methods 0.000 title claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000003825 pressing Methods 0.000 claims abstract description 33
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of battery production, and discloses a battery spot welding jig and a battery production line, comprising the following steps: the bottom plate is used for supporting the shell of the battery; the first clamping assembly comprises a first clamping block and a first elastic piece, wherein the first elastic piece is used for pushing the first clamping block to slide along a first direction; the second clamping assembly comprises a second clamping block and a second elastic piece, wherein the second elastic piece is used for pushing the second clamping block to slide along the opposite direction of the first direction; the first clamping block and the second clamping block can slide in opposite directions to clamp the cover plate of the battery on the shell in a positioning way, the first clamping block and the second clamping block are respectively opposite to different spot welding positions on the cover plate, and inclined surfaces are arranged on the first clamping block and the second clamping block; the pressing plate is provided with a spot welding through hole, and a bulge is arranged on the side surface of the pressing plate, which is close to the bottom plate, corresponding to the inclined surface; when the pressing plate is pressed on the cover plate, the corresponding protrusions are pressed on the inclined surfaces so as to push the first clamping block and the second clamping block away from the cover plate respectively. The battery spot welding jig has longer service life.
Description
Technical Field
The utility model relates to the technical field of battery production, in particular to a battery spot welding jig and a battery production line.
Background
Battery production involves a number of processes, such as the need to effect the connection between the cover plate and the housing by a laser welding process so that the gap between the cover plate and the housing is sealed; before the laser welding process, spot welding is performed on the cover plate and the shell, so that the cover plate and the shell are fixed in advance.
At present, the relative fixation between the cover plate and the shell, which are needed to be spot-welded, is generally realized through a jig, the jig comprises a bottom plate, a pressing plate and a clamping plate, the bottom plate supports the shell, then the cover plate is placed on the shell, the clamping plates at two sides fix the shell, the pressing plate presses the cover plate on the shell, the top of the clamping plate is attached to the side edge of the cover plate, and then the spot welding process can be completed from a welding through hole of the pressing plate. The technical problem that the clamping plate is attached to the side edge of the cover plate in the prior art is that the spot welding position is very close to the clamping plate, and heat generated in the spot welding process is transferred to the clamping plate in a large quantity, so that the clamping plate is easy to deform locally due to high temperature, and the service life of the jig is short.
In view of this, it is necessary to design a battery spot welding jig with a longer service life.
Disclosure of Invention
The utility model aims to provide a battery spot welding jig which is longer in service life.
To achieve the purpose, the utility model adopts the following technical scheme:
a battery spot welding jig, comprising:
a base plate for supporting a housing of the battery;
a first clamping assembly including a first clamping block and a first elastic member for pushing the first clamping block to slide in a first direction;
a second clamping assembly including a second clamping block and a second elastic member for pushing the second clamping block to slide in a direction opposite to the first direction; the first clamping block and the second clamping block can slide in opposite directions to clamp the cover plate of the battery on the shell in a positioning way, the first clamping block and the second clamping block are respectively opposite to different spot welding positions on the cover plate, and inclined surfaces are arranged on the first clamping block and the second clamping block;
the pressing plate is provided with a spot welding through hole penetrating to the spot welding position, and a protrusion is arranged on the side surface, close to the bottom plate, of the pressing plate, corresponding to the inclined surface; when the pressing plate is pressed on the cover plate, the corresponding protrusions are pressed on the inclined surface so as to push the first clamping block and the second clamping block away from the cover plate respectively.
Optionally, the first clamping assembly further comprises a first supporting plate fixedly connected with the bottom plate, a first sliding groove is formed in the first supporting plate, and the first clamping block is slidably installed in the first sliding groove.
Optionally, the second clamping assembly further comprises a mounting plate fixedly connected with the bottom plate, a second support plate slidably mounted on the mounting plate, and a first driving assembly for pushing the second support plate to move back and forth along the first direction;
the second supporting plate is provided with a second chute parallel to the first chute, and the second clamping block is slidably mounted in the second chute.
Optionally, two ends of the first elastic piece are respectively connected with the first supporting plate and the first clamping block; and two ends of the second elastic piece are respectively connected with the second supporting plate and the second clamping block.
Optionally, when the first clamping block and the second clamping block slide in opposite directions to fix and clamp the cover plate of the battery on the shell, the first side surface of the first support plate, which is close to the second support plate, respectively abuts against the cover plate and the shell, and the second side surface of the second support plate, which is close to the first support plate, respectively abuts against the cover plate and the shell.
Optionally, when the first clamping block and the second clamping block slide in opposite directions to clamp the cover plate of the battery on the housing, the first side surface of the first support plate, which is close to the second support plate, is a first set distance from the housing, and the second side surface of the second support plate, which is close to the first support plate, is a second set distance from the housing.
Optionally, the battery spot welding fixture is further provided with a third elastic component and a fourth elastic component, and the third elastic component and the fourth elastic component slide in opposite directions to position and clamp a cover plate of the battery on the shell;
the third elastic assembly comprises a third clamping block and a third elastic piece for pushing the third clamping block to move along a second direction, and the fourth elastic assembly comprises a fourth clamping block and a fourth elastic piece for pushing the fourth clamping block to move along the opposite direction of the second direction; the first direction is perpendicular to the second direction, and inclined surfaces are arranged on the third clamping block and the fourth clamping block;
when the pressing plate is pressed on the cover plate, the corresponding protrusions are pressed on the inclined surface so as to push the third clamping block and the fourth clamping block away from the shell respectively.
Optionally, a first groove is formed in the first clamping block, and the bottom of the first groove forms the inclined plane; the closer the first groove is to the shell on the bottom plate, the deeper the groove depth is;
the second clamping block is provided with a second groove, and the bottom of the second groove forms the inclined plane; the second groove is deeper the closer to the housing on the base plate.
Optionally, the protrusion is provided with a pushing surface matching the corresponding inclined surface;
the pushing surface is a plane.
A battery production line comprising the battery spot welding jig according to any one of the above.
Compared with the prior art, the utility model has the following beneficial effects:
when the pressure plate is pressed down, a first clamping block in the first clamping assembly is closest to the spot welding position, and a second clamping block in the second clamping assembly is closest to the spot welding position; the pressing plate pushes the inclined plane downwards through the bulge in the pressing plate pressing process, so that a first clamping block in the first clamping assembly and a second clamping block in the second clamping assembly are away from the spot welding position, the first clamping assembly and the second clamping assembly which laterally clamp the battery can be prevented from absorbing excessive heat in the spot welding process and deforming, and the service life of the battery spot welding jig is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are therefore not intended to limit the scope of the utility model, since any modification, variation in proportions, or adjustment of the size, which would otherwise be used by those skilled in the art, would not have the essential significance of the present disclosure, would still fall within the scope of the present disclosure without affecting the efficacy or achievement of the present disclosure.
Fig. 1 is a schematic perspective view of a battery spot welding jig according to an embodiment of the present utility model;
fig. 2 is a schematic top view of a battery spot welding fixture according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the cross-sectional structure A-A in FIG. 2;
FIG. 4 is an enlarged schematic view of the position A in FIG. 3;
FIG. 5 is a schematic view of the cross-sectional structure B-B in FIG. 2;
FIG. 6 is a schematic cross-sectional view of a first clamping block according to an embodiment of the present utility model;
fig. 7 is a schematic cross-sectional structure of a second clamping block according to an embodiment of the present utility model.
Illustration of: 1. a bottom plate; 2. a first clamping assembly; 21. a first clamping block; 2101. a first groove; 22. a first elastic member; 23. a first support plate; 231. a first chute; 2301. a first side; 201. an inclined surface; 3. a second clamping assembly; 31. a second clamping block; 3101. a second groove; 32. a second elastic member; 33. a mounting plate; 34. a second support plate; 341. a second chute; 3401. a second side; 4. a pressing plate; 401. spot welding the through holes; 402. a protrusion; 4021. a pressing surface; 5. a third elastic component; 51. a third clamping block; 52. a third elastic member; 6. a fourth elastic component; 61. a fourth clamping block; 62. and a fourth elastic member.
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
The embodiment discloses battery spot welding tool to through being provided with the first clamping piece 21 and the second clamping piece 31 that can be pressed and keep away from the apron to make the spot welding position can be farther apart from first clamping component 2 and second clamping component 3, avoided too much heat transfer to first clamping component 2 or second clamping component 3 in the spot welding process, thereby made battery spot welding tool's life obtain effectual extension.
The cover plate and the side plate of the shell are required to be welded in the spot welding process, the thickness of the side plate is relatively small, and the spot welding position is required to be close to the position where the side plate is attached to the cover plate as much as possible; in order to avoid the overlarge gap between the cover plate and the shell, the clamping plate needs to be tightly attached to the top plate, and the clamping plate also needs to be tightly attached to the top plate to provide a good clamping effect, so that the spot welding position is very close to the clamping plate, which is also the reason that the clamping plate is easy to deform.
In order to avoid the situation that the jig is excessively deformed due to excessive local heating, the embodiment discloses a battery spot welding jig, which comprises a bottom plate 1, a first clamping assembly 2, a second clamping assembly 3 and a pressing plate 4.
Wherein the base plate 1 is used for supporting the housing of the battery.
The first clamping assembly 2 comprises a first clamping block 21 and a first elastic member 22 for pushing the first clamping block 21 to slide in a first direction; the second clamping assembly 3 comprises a second clamping block 31 and a second elastic member 32 for pushing the second clamping block 31 to slide in the opposite direction to the first direction; after the housing is placed on the base plate 1, the first clamping block 21 and the second clamping block 31 can slide in opposite directions to clamp the cover plate of the battery on the housing in a positioning manner, so that the relative positioning between the cover plate and the housing is realized. In addition, the first clamping block 21 and the second clamping block 31 are respectively opposite to different spot welding positions on the cover plate, and inclined surfaces 201 are arranged on the first clamping block 21 and the second clamping block 31.
A pressing plate 4 provided with a spot welding through hole 401 penetrating to the spot welding position, and a protrusion 402 is arranged on the side surface of the pressing plate 4 close to the bottom plate 1 corresponding to the inclined surface 201; when the pressing plate 4 is pressed against the cover plate, the corresponding protrusions 402 are pressed against the inclined surface 201 to push the first clamping block 21 and the second clamping block 31 away from the cover plate, respectively. That is, after the first clamping block 21 and the second clamping block 31 realize the relative positioning of the cover plate and the shell, the pressing plate 4 is pressed down to press the cover plate on the shell, and the first clamping block 21 and the second clamping block 31 are far away from the spot welding position in the pressing plate pressing process, so that the problem that the first clamping block 21 and the second clamping block 31 are clung to the cover plate to absorb excessive heat is avoided.
In this embodiment, by pushing the first clamping block 21 and the second clamping block 31 away from the cover plate, the problem that the first clamping assembly 2 and the second clamping assembly 3 absorb excessive heat in the spot welding process is avoided, so that the service life of the battery spot welding jig can be effectively prolonged.
The first elastic member 22 and the second elastic member 32 may be springs, elastic sheets, elastic blocks or elastic columns.
Optionally, the first clamping assembly 2 further includes a first support plate 23 fixedly connected to the base plate 1, and a first chute 231 is disposed on the first support plate 23, and the first clamping block 21 is slidably mounted in the first chute 231. Specifically, the first sliding groove 231 defines a sliding direction of the first clamping block 21, preventing the first clamping block 21 from sliding in an erroneous direction. It should be further noted that, during the process that the protrusion 402 presses on the inclined surface 201 and the protrusion 402 moves downward, the pressure of the first clamping block 21 moves in the opposite direction to the first direction.
Optionally, the second clamping assembly 3 further comprises a mounting plate 33 fixedly connected with the base plate 1, a second support plate 34 slidably mounted on the mounting plate 33, and a first driving assembly for pushing the second support plate 34 to move back and forth in the first direction; the second support plate 34 is provided with a second sliding groove 341 parallel to the first sliding groove 231, and the second clamping block 31 is slidably mounted in the second sliding groove 341.
Specifically, the first clamping assembly 2 is positioned and installed on the bottom plate 1, the first driving assembly can adjust the clamping position of the second clamping block 31, in the process of actually positioning the shell, the shell can be placed between the first clamping assembly 2 and the second clamping assembly 3, and then the first driving assembly pushes the second supporting plate 34 to slide, so that the shell is positioned and clamped between the first clamping assembly 2 and the second clamping assembly 3. Similarly, when the cover plate is placed on the shell and put between the first clamping assembly 2 and the second clamping assembly 3, the first driving assembly pushes the second supporting plate 34 to slide, so that the purpose of positioning and clamping the cover plate of the battery on the shell is achieved.
Alternatively, both ends of the first elastic member 22 are respectively connected to the first support plate 23 and the first clamping block 21; both ends of the second elastic member 32 are respectively connected to the second support plate 34 and the second clamping block 31. That is, the present embodiment is realized by the elasticity of the first elastic member 22 and the second elastic member 32 to clamp and position.
Alternatively, when the first clamping block 21 and the second clamping block 31 slide towards each other to clamp the cover plate of the battery to the housing, the first side 2301 of the first support plate 23 adjacent to the second support plate 34 abuts against the cover plate and the housing, respectively, and the second side 3401 of the second support plate 34 adjacent to the first support plate 23 abuts against the cover plate and the housing, respectively.
Specifically, in the actual spot welding process, the first support plate 23 and the second support plate 34 are mutually matched to clamp the shell and the cover plate, so that the displacement of the shell and the cover plate is avoided, the first clamping block 21 and the second clamping block 31 of the parts close to the spot welding position are far away from the spot welding position, and therefore heat is prevented from being transferred to the parts such as the first support plate 23 and the second support plate 34, and the service life of the battery spot welding jig is prolonged.
Alternatively, when the first clamping block 21 and the second clamping block 31 slide towards each other to clamp the cover plate of the battery to the housing, the first support plate 23 is positioned close to the first side 2301 of the second support plate 34 at a first set distance from the housing, and the second support plate 34 is positioned close to the second side 3401 of the first support plate at a second set distance from the housing. In particular, the positioning between the cover plate and the housing is realized only by the pressure of the pressing plate 4, but the problem that the first clamping assembly 2 and the second clamping assembly 3 are excessively heated to deform is effectively avoided.
Optionally, the battery spot welding fixture is further provided with a third elastic component 5 and a fourth elastic component 6, and the third elastic component 5 and the fourth elastic component 6 slide towards each other to position and clamp the cover plate of the battery on the shell.
The third elastic assembly 5 includes a third clamping block 51 and a third elastic member 52 for pushing the third clamping block 51 to move in the second direction, and the fourth elastic assembly 6 includes a fourth clamping block 61 and a fourth elastic member 62 for pushing the fourth clamping block 61 to move in the opposite direction to the second direction; the first direction is perpendicular to the second direction, and inclined surfaces 201 are provided on both the third clamping block 51 and the fourth clamping block 61.
When the pressing plate 4 is pressed against the cover plate, the corresponding protrusions 402 are pressed against the inclined surface 201 to push the third clamping block 51 and the fourth clamping block 61, respectively, away from the housing.
Specifically, the first clamping assembly 2, the second clamping assembly 3, the third elastic assembly 5 and the fourth elastic assembly 6 clamp four sides of the housing, and push the cover plate from four directions to a positioning position so that side edge portions of the cover plate are aligned with the sides of the housing.
Preferably, the fourth elastic component 6 can be positioned and installed on the bottom plate 1 like the first clamping component 2, and the third elastic component 5 is of a position-adjustable structure like the second clamping component 3, so that the clamping and positioning effects can be better realized, and the feeding or discharging can be effectively facilitated.
Alternatively, as shown in fig. 6 and 7, the first clamping block 21 is provided with a first groove 2101, and the groove bottom of the first groove 2101 forms an inclined surface 201; the closer the first recess 2101 is to the housing on the base plate 1, the deeper the recess depth is; the second clamping block 31 is provided with a second groove 3101, and the bottom of the second groove 3101 forms an inclined surface 201; the closer the second groove 3101 is to the housing on the base plate 1, the deeper the groove depth. The projection 402 is provided with a pressing surface 4021 matching the corresponding inclined surface 201; the pressing surface 4021 is a flat surface. During the downward movement of the pressing surface 4021, the inclined surface 201 is pressed, so that the first and second clamping blocks 21 and 31 are away from the housing to be spot-welded.
Example two
The embodiment discloses a battery production line, which comprises a battery spot welding jig as in the first embodiment. After the spot welding of the cover plate and the shell is completed, the cover plate and the shell which are connected together are taken out by the manipulator and transferred to a laser welding station for subsequent processing.
The battery production line can also comprise other components, such as a feeding manipulator, a discharging manipulator, a material conveying belt, a quality detection assembly and the like.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A battery spot welding tool, its characterized in that includes:
a base plate (1) for supporting a housing of the battery;
a first clamping assembly (2) comprising a first clamping block (21) and a first elastic member (22) for pushing the first clamping block (21) to slide in a first direction;
a second clamping assembly (3) comprising a second clamping block (31) and a second elastic member (32) for pushing the second clamping block (31) to slide in a direction opposite to the first direction; the first clamping block (21) and the second clamping block (31) can slide in opposite directions to clamp the cover plate of the battery on the shell in a positioning way, the first clamping block (21) and the second clamping block (31) are respectively opposite to different spot welding positions on the cover plate, and inclined surfaces (201) are arranged on the first clamping block (21) and the second clamping block (31);
a pressing plate (4) provided with a spot welding through hole (401) penetrating to the spot welding position, and a protrusion (402) is arranged on the side surface of the pressing plate (4) close to the bottom plate (1) corresponding to the inclined surface (201); when the pressing plate (4) presses on the cover plate, the corresponding protrusion (402) presses on the inclined surface (201) to push the first clamping block (21) and the second clamping block (31) away from the cover plate respectively.
2. The battery spot welding jig according to claim 1, wherein the first clamping assembly (2) further comprises a first support plate (23) fixedly connected with the bottom plate (1), a first chute (231) is provided on the first support plate (23), and the first clamping block (21) is slidably mounted in the first chute (231).
3. The battery spot welding jig according to claim 2, wherein the second clamping assembly (3) further comprises a mounting plate (33) fixedly connected to the bottom plate (1), a second support plate (34) slidably mounted on the mounting plate (33), and a first driving assembly for pushing the second support plate (34) to move back and forth in the first direction;
the second supporting plate (34) is provided with a second sliding groove (341) parallel to the first sliding groove (231), and the second clamping block (31) is slidably mounted in the second sliding groove (341).
4. A battery spot welding jig according to claim 3, wherein both ends of the first elastic member (22) are respectively connected to the first support plate (23) and the first clamping block (21); two ends of the second elastic piece (32) are respectively connected with the second supporting plate (34) and the second clamping block (31).
5. A battery spot welding jig according to claim 3, wherein when the first clamping block (21) and the second clamping block (31) slide toward each other to clamp a cover plate of a battery to the housing, a first side face (2301) of the first support plate (23) adjacent to the second support plate (34) abuts against the cover plate and the housing, respectively, and a second side face (3401) of the second support plate (34) adjacent to the first support plate (23) abuts against the cover plate and the housing, respectively.
6. A battery spot welding jig according to claim 3, wherein the first support plate (23) is located close to the first side face (2301) of the second support plate (34) at a first set distance from the housing and the second support plate (34) is located close to the second side face (3401) of the first support plate (23) at a second set distance from the housing when the first clamping block (21) and the second clamping block (31) are slid toward each other to clamp the cover plate of the battery to the housing.
7. The battery spot welding jig according to claim 1, further provided with a third elastic assembly (5) and a fourth elastic assembly (6), the third elastic assembly (5) and the fourth elastic assembly (6) sliding toward each other to position and clamp a cover plate of a battery on the housing;
the third elastic assembly (5) comprises a third clamping block (51) and a third elastic member (52) for pushing the third clamping block (51) to move along a second direction, and the fourth elastic assembly (6) comprises a fourth clamping block (61) and a fourth elastic member (62) for pushing the fourth clamping block (61) to move along the opposite direction of the second direction; the first direction is perpendicular to the second direction, and inclined surfaces (201) are arranged on the third clamping block (51) and the fourth clamping block (61);
when the pressing plate (4) presses on the cover plate, the corresponding protrusion (402) presses on the inclined surface (201) to push the third clamping block (51) and the fourth clamping block (61) away from the shell respectively.
8. The battery spot welding jig according to claim 1, wherein a first groove (2101) is formed in the first clamping block (21), and the groove bottom of the first groove (2101) forms the inclined surface (201); the closer the first recess (2101) is to the housing on the base plate (1), the deeper the recess depth is;
a second groove (3101) is formed in the second clamping block (31), and the groove bottom of the second groove (3101) forms the inclined surface (201); the closer the second groove (3101) is to the housing on the base plate (1), the deeper the groove depth is.
9. The battery spot welding jig according to claim 1, wherein the projection (402) is provided with a pressing surface (4021) matching the corresponding inclined surface (201);
the pressing surface (4021) is a plane.
10. A battery production line, characterized by comprising the battery spot welding jig according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321399743.1U CN220259971U (en) | 2023-06-02 | 2023-06-02 | Battery spot welding jig and battery production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321399743.1U CN220259971U (en) | 2023-06-02 | 2023-06-02 | Battery spot welding jig and battery production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220259971U true CN220259971U (en) | 2023-12-29 |
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ID=89316481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321399743.1U Active CN220259971U (en) | 2023-06-02 | 2023-06-02 | Battery spot welding jig and battery production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220259971U (en) |
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2023
- 2023-06-02 CN CN202321399743.1U patent/CN220259971U/en active Active
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