CN222370734U - A welding tool for bar - Google Patents
A welding tool for bar Download PDFInfo
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- CN222370734U CN222370734U CN202420201550.9U CN202420201550U CN222370734U CN 222370734 U CN222370734 U CN 222370734U CN 202420201550 U CN202420201550 U CN 202420201550U CN 222370734 U CN222370734 U CN 222370734U
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- tab
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
本申请涉及一种巴片焊接工装，属于工装技术领域，该巴片焊接工装包括第一定位组件，其包括用于放置电芯的底座；第二定位组件，其包括设置在所述底座上的导向柱，所述导向柱上设置有用于限位巴片侧边的端板件，以及用于压紧巴片的压板件。由于导向柱上设置有用于限位巴片侧边的端板件，以及用于压紧巴片的压板件，因此，在将巴片压紧在电芯的极柱顶面时，可以通过端板件先对巴片的侧边进行限位，在利用压板件将巴片压紧在电芯的极柱顶面上，使得巴片在压紧前或压紧过程中不容易电芯的极柱上侧滑，进而可以一定程度上避免巴片滑移错位，提升巴片焊接一致性差，从而保证焊接后的产品质量。
The present application relates to a bar welding tool, belonging to the technical field of tooling, the bar welding tool comprises a first positioning component, which comprises a base for placing a battery cell; a second positioning component, which comprises a guide column arranged on the base, the guide column is provided with an end plate for limiting the side of the bar, and a pressure plate for pressing the bar. Since the guide column is provided with an end plate for limiting the side of the bar, and a pressure plate for pressing the bar, when the bar is pressed against the top surface of the pole of the battery cell, the side of the bar can be limited by the end plate first, and then the bar is pressed against the top surface of the pole of the battery cell by the pressure plate, so that the bar is not easy to slide on the pole of the battery cell before or during the pressing process, and then the bar can be prevented from sliding and dislocating to a certain extent, and the poor consistency of the bar welding can be improved, thereby ensuring the quality of the product after welding.
Description
Technical Field
The application relates to the technical field of tools, in particular to a bar welding tool.
Background
The battery pack consists of a plurality of electric cores, the single electric cores are connected in series or in parallel through the tabs, and the tabs are usually connected with the poles of the electric cores through a welding process. However, when the existing welding jig is used for welding the battery cell tabs, the welding can only be carried out for one battery cell model, and when the battery cells with different models and different heights are to be subjected to the tab welding, the welding can be carried out only by adopting different welding jigs to be installed on different laser welding machines, and the welding jig has the advantages of single structure, poor compatibility, low production efficiency and high cost.
In the related art, the patent of the utility model with the grant bulletin number of CN218311675U discloses a compatible type battery cell chip welding jig, which is used for solving the problems of single structure, poor compatibility and the like of the welding jig in the prior art. The electric core fixing device comprises a bottom plate, a tightening mechanism, a height adjusting mechanism, a mounting plate, a plurality of sliding grooves and a braking component, wherein a fixing seat for fixing electric cores is arranged on the bottom plate, a pressing plate for pressing taut sheets is arranged above the fixing seat, welding abdicating holes are formed in the pressing plate, two ends of the pressing plate are respectively arranged at the upper ends of the two height adjusting mechanisms through the tightening mechanism, the two height adjusting mechanisms are respectively arranged at two ends of the bottom plate and used for adjusting the mounting height of the pressing plate according to different electric cores, the plurality of sliding grooves are distributed along the width direction at intervals on the upper surface of the mounting plate and extend along the length direction of the mounting plate, sliding blocks matched with the sliding grooves are arranged on the lower surface of the bottom plate, the bottom plate is connected to the sliding grooves through the sliding blocks in a sliding mode, and the bottom plate is provided with the braking component.
However, the welding jig has poor side limiting effect on the tabs, and because the conventional tabs are of a sheet-shaped structure with smooth surfaces, the friction force between the tabs and the battery core electrode posts is small, and the tabs are easily affected by external force to slip and misplacement before or during compaction, so that the welding consistency is poor, and the product quality is affected.
Disclosure of Invention
The embodiment of the application provides a tab welding tool, which aims to solve the problems that in the related art, the side limiting effect of a welding tool on a tab is poor, the tab is easy to sideslip on a pole of a battery cell, so that the welding consistency is poor, and the product quality is affected.
The embodiment of the application provides a bar welding tool, which comprises the following components:
A first positioning assembly including a base for placing the battery cell;
the second positioning assembly comprises a guide column arranged on the base, and an end plate member for limiting the side edge of the tab and a pressing plate member for pressing taut tabs are arranged on the guide column.
In some embodiments, a fixing plate fixedly connected with the guide post is arranged above the pressing plate, and a pressing piece for pressing the pressing plate downwards is arranged on the fixing plate.
In some embodiments, the end plate member includes a sliding plate slidably connected to the guide post, and a stopper disposed on the sliding plate and configured to abut against a side edge of the tab.
In some embodiments, the stop block includes a first stop block for abutting the long side of the tab and a second stop block for abutting the short side of the tab.
In some embodiments, the sliding plate is provided with a first bar-shaped hole extending along the length direction of the sliding plate, and the first limiting block is provided with a first fastener penetrating into the first bar-shaped hole.
In some embodiments, the second limiting block is provided with a second bar-shaped hole extending along the width direction of the sliding plate, and the sliding plate is provided with a second fastening piece penetrating into the second bar-shaped hole.
In some embodiments, the pressing plate member includes a sliding frame slidingly connected with the guide post, an insulating frame is slidingly connected with the inner side of the sliding frame along the width direction of the sliding frame, a copper nozzle for abutting against the top surface of the tab is slidingly connected with the inner side of the insulating frame along the length direction of the insulating frame, and a welding abdication hole for exposing the tab is formed in the copper nozzle.
In some embodiments, the copper nozzle includes a heat-resistant portion and a heat-conducting portion fixed to a lower surface of the heat-resistant sheet.
In some embodiments, the first positioning assembly further comprises a limiting protrusion disposed on the base and adapted to abut against a side wall of the battery cell.
In some embodiments, the battery cell also comprises a base plate for supporting the base, and a limiting arm for abutting against the side wall of the battery cell is arranged on the base plate.
The technical scheme provided by the application has the beneficial effects that:
The embodiment of the application provides a tab welding tool, which comprises a first positioning assembly and a second positioning assembly, wherein the first positioning assembly comprises a base for placing a battery cell, the second positioning assembly comprises a guide column arranged on the base, and an end plate for limiting the side edge of a tab and a pressing plate for pressing taut tabs are arranged on the guide column.
Therefore, when compressing tightly the utmost point post top surface at electric core with the fin, can carry out spacingly through the side of end plate spare to the fin earlier, utilize the clamp plate spare to compress tightly the fin on the utmost point post top surface of electric core for the fin is difficult to the utmost point post upper side slip of electric core before compressing tightly or compressing tightly the in-process, and then can avoid the fin dislocation of sliding to a certain extent, promotes the fin welding uniformity poor, thereby guarantees the product quality after the welding.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a top view of a slide plate according to an embodiment of the present application;
FIG. 3 is a schematic view illustrating a sliding frame according to an embodiment of the present application;
FIG. 4 is a schematic view of a base structure according to an embodiment of the present application;
fig. 5 is a schematic structural view of a pad according to an embodiment of the present application.
In the drawings, the list of components represented by the various numbers is as follows:
1. The device comprises a base, 2, a guide post, 3, a fixed plate, 4, a propping piece, 5, a sliding plate, 6, a first limiting block, 7, a second limiting block, 8, a first strip-shaped hole, 9, a first fastening piece, 10, a second strip-shaped hole, 11, a second fastening piece, 12, a sliding frame, 13, an insulating frame, 14, a copper nozzle, 141, a heat-resistant sheet, 142, a heat-conducting sheet, 15, a limiting protrusion, 16, a base plate, 17, a first limiting arm and 18, a second limiting arm.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides a tab welding tool, which can solve the problems that in the related art, the side limiting effect of a welding tool on a tab is poor, the tab is easy to slide on a pole of a battery cell, the welding consistency is poor, and the product quality is affected.
Referring to fig. 1 to 5, an embodiment of the present application provides a bonding tool for bonding a bonding pad, including:
A first positioning assembly comprising a base 1 for placing the battery cells;
The second positioning assembly comprises a guide post 2 arranged on the base 1, and an end plate member for limiting the side edge of the tab and a pressing plate member for pressing taut pieces are arranged on the guide post 2.
The tab welding tool provided by the embodiment of the application is provided with a first positioning component and a second positioning component, wherein the first positioning component comprises a base 1 for placing a battery cell, the second positioning component comprises a guide post 2 arranged on the base 1, the guide post 2 is provided with an end plate for limiting the side edge of the tab and a pressing plate for pressing taut sheets, and the end plate and the pressing plate can slide along the guide post 2 to adjust the positions.
Specifically, after arranging the electric core on the base 1, arranging the bar on the pole at the top of the electric core, when compacting the bar on the top of the pole of the electric core, the side edge of the bar can be limited through the end plate piece, the position of the pressing plate piece is adjusted, the bar is compacted on the top of the pole of the electric core by the pressing plate piece, and the bar is not easy to sideslip on the pole of the electric core before or during compaction, so that the bar is convenient to weld.
In the embodiment, the number of the guide posts 2 is two, the guide posts 2 are vertically fixed on the top surface of the base 1 at intervals, a first sliding sleeve in sliding fit with the guide posts 2 is fixed on the end plate member, a second sliding sleeve in sliding fit with the guide posts 2 is fixed on the pressing plate member, the contact area between the sliding sleeve and the guide posts 2 is large, so that the sliding stability can be ensured, in addition, the pressing plate member can utilize self-weight taut sheets, and a counterweight can be arranged on the pressing plate member to ensure taut sheets.
In some alternative embodiments, as shown in fig. 1, the embodiment of the application provides a tab welding fixture, a fixing plate 3 fixedly connected with a guide post 2 is arranged above a pressing plate member of the tab welding fixture, and a pressing member 4 for pressing the pressing plate downwards is arranged on the fixing plate 3.
The fixing plate 3 fixedly connected with the guide post 2 is arranged above the pressing plate piece, the pressing piece 4 is arranged on the fixing plate 3 and used for pressing the pressing plate downwards, so that the pressing plate presses the tabs on the top surface of the pole of the battery cell, and the pressing piece 4 can be an elbow clamp or a screw rod, so that the use is convenient. Further, the tightening end of the tightening member 4 may be provided with an elastic member, such as a rubber block or a spring, to ensure the tightening effect.
In some alternative embodiments, referring to fig. 1 and 2, the embodiment of the present application provides a tab welding fixture, where the end plate of the tab welding fixture includes a sliding plate 5 slidably connected to the guide post 2, and a stopper disposed on the sliding plate 5 and used for abutting against a side edge of the tab.
The end plate of the embodiment of the application comprises the sliding plate 5 which is in sliding connection with the guide post 2, the sliding plate 5 is fixedly provided with the limiting block, the limiting block is abutted against the side edge of the bar, the bar can be limited to laterally move, and the subsequent pressing plate can be conveniently moved downwards to press the bar.
In some alternative embodiments, referring to fig. 1 and 2, the embodiment of the application provides a tab welding fixture, and the limiting block of the tab welding fixture comprises a first limiting block 6 for abutting against the long side of the tab, and a second limiting block 7 for abutting against the short side of the tab.
The limiting block comprises a first limiting block 6 used for abutting against the long edge of the tab and a second limiting block 7 used for abutting against the short edge of the tab, when the limiting block is used, the first limiting block 6 is fixedly arranged on the sliding plate 5 and is contacted with the long edge of one side of the tab so as to limit the tab to slide to the side where the first limiting block 6 is located, and the second limiting block 7 is fixedly arranged on the sliding plate 5 and is contacted with the short edge of one side of the tab so as to limit the tab to slide to the side where the second limiting block 7 is located.
It should be noted that, the long edges of two sides of the tab may be provided with the first limiting block 6, so as to limit the lateral sliding of the tab, and the first limiting block 6 is not shown on two sides of a single tab.
In some alternative embodiments, referring to fig. 2, the embodiment of the application provides a tab welding fixture, a sliding plate 5 of the tab welding fixture is provided with a first strip-shaped hole 8 extending along the length direction of the sliding plate 5, and a first fastener 9 penetrating the first strip-shaped hole 8 is arranged on a first limiting block 6.
The sliding plate 5 of the embodiment of the application is provided with a first strip-shaped hole 8 extending along the length direction of the sliding plate 5, the first limiting block 6 is provided with a first fastening piece 9 penetrating into the first strip-shaped hole 8, and the first limiting block 6 is fixed on the sliding plate 5 through the first fastening piece 9. Specifically, the second fastener 11 is a bolt, and the position of the first limiting block 6 can be adjusted along the length direction of the first strip-shaped hole 8 by changing the position of the bolt in the first strip-shaped hole 8, so that the position of the first limiting block 6 can be adjusted according to the width dimension adaptability of the strip to limit the strip laterally.
In some alternative embodiments, referring to fig. 2, the embodiment of the application provides a tab welding fixture, wherein a second bar-shaped hole 10 extending along the width direction of a sliding plate 5 is arranged on a second limiting block 7 of the tab welding fixture, and a second fastener 11 penetrating into the second bar-shaped hole 10 is arranged on the sliding plate 5.
The second limiting block 7 of the embodiment of the application is provided with a second strip-shaped hole 10 extending along the width direction of the sliding plate 5, the sliding plate 5 is provided with a second fastening piece 11 penetrating into the second strip-shaped hole 10, and the second limiting block 7 is fixed on the sliding plate 5 through the second fastening piece 11. Specifically, the second fastener 11 is a bolt. Through changing the position of bolt in second bar hole 10, and then can follow the length direction of second bar hole 10 and adjust the position of second stopper 7, conveniently carry out the side limiting to the tab according to the position of second stopper 7 of tab length dimension adaptation.
In some alternative embodiments, referring to fig. 1 and 3, an embodiment of the present application provides a bonding tool, where a pressing plate of the bonding tool includes a sliding frame 12 slidably connected to a guide post 2, an insulating frame 13 is slidably connected to an inner side of the sliding frame 12 along a width direction thereof, a copper nozzle 14 for abutting against a top surface of a bonding sheet is slidably connected to an inner side of the insulating frame 13 along a length direction thereof, and a bonding relief hole exposing the bonding sheet is provided on the copper nozzle 14.
The pressing plate piece of the embodiment of the application comprises a sliding frame 12 which is in sliding connection with a guide post 2, wherein an insulating frame 13 is arranged on the inner side of the sliding frame 12, two copper nozzles 14 which respectively correspond to the positive electrode and the negative electrode are arranged on the insulating frame 13, when the two copper nozzles 14 press taut sheets, the insulating frame 13 can prevent the positive electrode and the negative electrode on two sides from being conducted, meanwhile, a welding abdication hole is formed in the copper nozzle 14, and the welding abdication hole exposes part of the top surface of the bar sheet, so that the end part of the bar sheet is convenient to weld.
In addition, in this embodiment, the sliding frame 12 is provided with a chute matched with the insulating frame 13 on the inner side, so that the insulating frame 13 can slide along the width direction of the sliding frame 12, and the insulating frame 13 can drive the copper nozzle 14 to move, so that the position of the copper nozzle 14 can be adjusted in the width direction of the sliding frame 12, meanwhile, the copper nozzle 14 is provided with a chute matched with the insulating frame 13, so that the copper nozzle 14 can slide along the length direction of the insulating frame 13, the position of the copper nozzle 14 can be adjusted in the length direction of the insulating frame 13, the position of the copper nozzle 14 can be conveniently adjusted, the top surface of a bar can be accurately covered, and the copper nozzle 14 can be conveniently pressed by aligning with the bar.
In some alternative embodiments, referring to fig. 3, an embodiment of the present application provides a bonding tool, in which a copper nozzle 14 includes a heat-resistant portion 141 and a heat-conductive portion 142 fixed to a lower surface of the heat-resistant portion 141.
The copper nozzle 14 of the embodiment of the application comprises a heat-resistant part 141 and a heat-conducting part 142 fixed on the lower surface of the heat-resistant part 141, wherein the heat-resistant part 141 is an epoxy glass block, the heat-conducting part 142 is a brass block, a chute matched with the insulating frame 13 is formed on the heat-conducting part, the epoxy glass block and the brass block are fixedly connected through screws, and are convenient to install on the insulating frame 13, and because the local temperature rise of the chip laser welding process is higher, the brass block for compacting the chip can quickly conduct away and share part of heat, the temperature rise of the welding position of the chip is reduced, and the welding effect is ensured. In addition, the epoxy glass block has good heat resistance, can cover the top surface of the brass block, and can play a role in heat resistance and isolation.
In some alternative embodiments, referring to fig. 1 and 4, the present application provides a tab welding fixture, where the first positioning component of the tab welding fixture further includes a limiting protrusion 15 disposed on the base 1 and used for abutting against a side wall of the battery cell.
The first positioning assembly of the embodiment of the application further comprises a limiting protrusion 15 arranged on the base 1 and used for abutting against the side wall of the battery cell, and the battery cell can be limited by matching the limiting protrusion 15 with the base 1, in this example, the limiting protrusion 15 is fixed on the base 1 and is L-shaped, and can be attached to one corner of the bottom end of the battery cell to play a limiting role.
In some alternative embodiments, referring to fig. 1 to 5, the embodiment of the application provides a bonding tool for bonding a bonding wire, which further comprises a backing plate 16 for supporting the base 1, wherein a limiting arm for abutting against a side wall of a battery cell is arranged on the backing plate 16.
The embodiment of the application is also provided with a base plate 16 for supporting the base 1, the base plate 16 is fixedly provided with a limiting arm for abutting against the side wall of the battery cell, and particularly, the limiting arm is in a limiting arm L shape and comprises a first limiting arm 17 and a second limiting arm 18, the first limiting arm 17 and the second limiting arm 18 are respectively used for abutting against the large surfaces on two adjacent sides of the limiting battery cell, so that the stability of the battery cell after positioning can be further ensured.
Specifically, during installation, the base plate 16 is fixed on a laser welding machine table, the base 1 is placed on the base plate 16 according to the welding head position and the position to be welded of the bonding tool, and the battery cell is positioned on the battery cell positioning base 1 by utilizing the limiting protrusion 15 on the base 1 and the first limiting arm 17 and the second limiting arm 18 on the base plate 16;
Then, the positions of the first limiting block 6 and the second limiting block 7 on the sliding plate 5 are adjusted, the tabs are correspondingly arranged at the bottom end of the battery cell, the heights of the sliding frame 12 are adjusted again, the sliding frame 12 is tightly pressed downwards by the pressing piece 4 on the fixed plate 3, the copper nozzles 14 on the two sides of the sliding frame 12 tightly press the tabs on the two sides downwards, the top surfaces of the tabs of the exposed parts of the yielding holes are welded on the copper nozzles 14, and finally, the tabs are welded by the welding head of the welding machine.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intervening medium, or may be in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a bar welding frock which characterized in that includes:
a first positioning assembly comprising a base (1) for placing the battery cells;
The second positioning assembly comprises a guide column (2) arranged on the base (1), and an end plate piece used for limiting the side edge of the tab and a pressing plate piece used for pressing taut pieces are arranged on the guide column (2).
2. The bonding tool according to claim 1, wherein:
The upper part of the pressing plate is provided with a fixing plate (3) fixedly connected with the guide post (2), and the fixing plate (3) is provided with a jacking piece (4) for jacking the pressing plate downwards.
3. The bonding tool according to claim 1, wherein:
The end plate piece comprises a sliding plate (5) which is in sliding connection with the guide post (2), and a limiting block which is arranged on the sliding plate (5) and is used for being abutted against the side edge of the tab.
4. A bonding tool according to claim 3, wherein:
The limiting blocks comprise a first limiting block (6) used for abutting against the long side of the tab and a second limiting block (7) used for abutting against the short side of the tab.
5. The bonding tool according to claim 4, wherein:
The sliding plate (5) is provided with a first strip-shaped hole (8) extending along the length direction of the sliding plate (5), and the first limiting block (6) is provided with a first fastener (9) penetrating into the first strip-shaped hole (8).
6. The bonding tool according to claim 4, wherein:
The second limiting block (7) is provided with a second strip-shaped hole (10) extending along the width direction of the sliding plate (5), and the sliding plate (5) is provided with a second fastening piece (11) penetrating into the second strip-shaped hole (10).
7. The bonding tool according to claim 1, wherein:
The pressing plate piece comprises a sliding frame (12) which is in sliding connection with the guide post (2), an insulating frame (13) is connected to the inner side of the sliding frame (12) in a sliding manner along the width direction of the sliding frame, a copper nozzle (14) for abutting against the top surface of the bar piece is connected to the inner side of the insulating frame (13) in a sliding manner along the length direction of the insulating frame, and a welding abdicating hole for exposing the bar piece is formed in the copper nozzle (14).
8. The bonding tool according to claim 7, wherein:
The copper nozzle (14) comprises a heat-resistant part (141) and a heat-conducting part (142) fixed on the lower surface of the heat-resistant part (141).
9. The bonding tool according to claim 1, wherein:
The first positioning assembly further comprises a limiting protrusion (15) which is arranged on the base (1) and used for being abutted against the side wall of the battery cell.
10. The bonding tool according to claim 1, wherein:
The battery cell structure further comprises a base plate (16) used for supporting the base (1), and a limiting arm used for being abutted against the side wall of the battery cell is arranged on the base plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420201550.9U CN222370734U (en) | 2024-01-26 | 2024-01-26 | A welding tool for bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420201550.9U CN222370734U (en) | 2024-01-26 | 2024-01-26 | A welding tool for bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222370734U true CN222370734U (en) | 2025-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420201550.9U Active CN222370734U (en) | 2024-01-26 | 2024-01-26 | A welding tool for bar |
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| Country | Link |
|---|---|
| CN (1) | CN222370734U (en) |
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- 2024-01-26 CN CN202420201550.9U patent/CN222370734U/en active Active
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