Welding device for copper bar machining

By designing a combined structure of welding station and fixture station, the double-sided automatic welding of copper busbars and battery tabs is realized, solving the problem of low single-sided welding efficiency in existing devices and improving adaptability and production efficiency.

CN224254546UActive Publication Date: 2026-05-19DONGGUAN YASHUN PRECISION HARDWARE MOULD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN YASHUN PRECISION HARDWARE MOULD CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing welding equipment can only perform single-sided welding, which is cumbersome, inefficient, and poorly adaptable, making it difficult to meet diverse production needs.

Method used

A device comprising a welding table, a translation slide rail, a fixture table, and a welding machine is designed. By setting welding machines at both ends and a movable fixture table, the device enables automatic double-sided welding of copper busbars and battery tabs. It can also adapt to fixture plates of different specifications through lifting cylinders and linear drive structures.

Benefits of technology

It enables automated double-sided welding of copper busbars and battery tabs, improving welding efficiency, adapting to different specifications of fixture boards, and meeting diverse production needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of new energy battery processing, in particular to a welding device for copper bar processing. A welding device for copper bar machining comprises a welding table, a welding tool and a welding machine, the welding tool and the welding machine are arranged on the welding table, the welding tool comprises a translation sliding rail arranged on the welding table and a jig table installed on the translation sliding rail in a sliding mode, and a jig plate for containing a battery and a copper bar is loaded on the jig table; two groups of welding machines are respectively arranged at two ends of the translation slide rail on the welding table, two sides of the jig plate are respectively provided with welding stations for accommodating copper bars and tabs of batteries, and the welding machines are provided with welding bases corresponding to the welding stations and welding heads which are arranged above the welding bases and can ascend and descend.
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Description

Technical Field

[0001] This utility model relates to the field of new energy battery processing technology, specifically a welding device for copper busbar processing. Background Technology

[0002] In the assembly of new energy battery packs, to meet higher current output requirements, multiple battery tabs are often connected in parallel via copper busbars. During the welding process between the copper busbars and the battery tabs, existing welding equipment typically only allows for single-sided welding. After welding one side, the workpiece must be manually transferred to the other side for welding, which is not only cumbersome but also inefficient. Furthermore, existing welding equipment has poor adaptability to different sizes of fixture plates, making it difficult to meet diverse production needs. Therefore, there is an urgent need to design a welding device for copper busbar processing that can improve welding efficiency and adapt to different sizes of fixture plates. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0004] A welding device for copper busbar processing includes a welding table and welding fixtures and welding machines disposed on the welding table. The welding fixtures include a translation slide rail disposed on the welding table and a jig table slidably mounted on the translation slide rail. A jig plate for placing batteries and copper busbars is mounted on the jig table. A set of welding machines is provided at each end of the translation slide rail on the welding table. Welding stations for accommodating the tabs of copper busbars and batteries are respectively provided on both sides of the jig plate. The welding machines are provided with welding bases corresponding to the welding stations and welding heads disposed above the welding bases and capable of being raised and lowered.

[0005] Furthermore, the welding platform is equipped with a lifting platform and a lifting cylinder that drives the lifting platform to move up and down, and a translation slide rail is installed on the lifting platform.

[0006] Furthermore, the fixture platform is provided with alignment posts, and the fixture plate is provided with alignment holes corresponding to the alignment posts.

[0007] Furthermore, the fixture plate has a hollowed-out section at the welding station that corresponds to the welding base and welding head, and the shape of the hollowed-out section is adapted to the welding base.

[0008] Furthermore, the fixture plate has a positioning groove for placing the tabs and copper busbars at the welding station. The fixture plate also has a positioning pressure plate covering the battery and a fixture clamp for pressing the positioning pressure plate. The side of the positioning pressure plate has a positioning piece that presses the tabs and copper busbars at the positioning groove.

[0009] Furthermore, a jig assembly table is provided on the welding table, and a support block corresponding to the welding station is provided on the jig assembly table. An assembly clamp that works with the support block to initially position the copper busbar and the electrode tab is also provided on the jig assembly table.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting welding machines at both ends and a fixture table that can move on a translational slide rail, this utility model can realize the automatic welding of copper busbars and battery tabs on both sides without the need for manual transfer of workpieces, which greatly improves welding efficiency.

[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the welding fixture in this utility model.

[0015] Figure 3 This is a schematic diagram of the welding machine in this utility model.

[0016] Figure 4 This is a schematic diagram of the fixture plate in this utility model.

[0017] Figure 5 This is a schematic diagram of the fixture assembly table in this utility model. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Please see Figures 1-5A welding device for copper busbar processing includes a welding table 1, a welding fixture 2 and a welding machine 3 mounted on the welding table 1. The welding fixture 2 includes a translational slide rail 21 mounted on the welding table 1 and a jig table 22 slidably mounted on the translational slide rail 21. The jig table 22 is equipped with a jig plate 4 for placing batteries and copper busbars. A set of welding machines 3 is located at each end of the translational slide rail 21 on the welding table 1. Welding stations for accommodating the tabs of copper busbars and batteries are respectively provided on both sides of the jig plate 4. The welding machine 3 is equipped with a welding base 31 corresponding to the welding station and a welding head 32 located above the welding base 31 and capable of being raised and lowered. The welding head 32 can be driven to rise and fall by a cylinder, hydraulic cylinder, motor, etc. Specifically, a linear drive structure such as a linear motor or cylinder can be used to drive the fixture table 22 to move on the translation slide rail 21. After welding one side of the electrode tab to the copper busbar, the fixture table 22 moves along the translation slide rail 21 to the other end to perform welding on the other side of the electrode tab to the copper busbar. This method is applicable to fixture plates 4 of different specifications. By setting welding machines 3 at both ends and a fixture table 22 that can move on the translation slide rail 21, this utility model can realize automatic double-sided welding of copper busbars and battery electrode tabs, eliminating the need for manual transfer of workpieces and greatly improving welding efficiency.

[0020] Furthermore, the welding table 1 is equipped with a lifting platform 11 and a lifting cylinder 12 for driving the lifting platform 11 to move up and down. A translational slide rail 21 is installed on the lifting platform 11. A linear drive structure is used to drive the jig table 22 to move, and the height of the jig table 22 is adjusted by the lifting cylinder 12, so that the device can be used for jig plates 4 of different specifications, meet diverse production needs, and avoid the jig table 22 from hitting the welding base 31 during movement.

[0021] Furthermore, the fixture table 22 is provided with alignment posts (not shown in the figure), and the fixture plate 4 is provided with alignment holes 42 corresponding to the alignment posts (not shown in the figure). The cooperation between the alignment posts (not shown in the figure) and the alignment holes 42 enables the fixture plate 4 to be quickly and accurately positioned on the fixture table 22, ensuring the accuracy of welding.

[0022] Furthermore, the fixture plate 4 has a hollowed-out portion 41 at the welding station corresponding to the welding base 31 and the welding head 32. The shape of the hollowed-out portion 41 is adapted to the welding base 31. The hollowed-out portion 41 allows the welding head 32 to descend closer to the welding area, ensuring welding quality, while preventing the fixture plate 4 from interfering with the welding process.

[0023] Furthermore, the jig plate 4 has a positioning groove 43 at the welding station for placing the tabs and copper busbars. The jig plate 4 also has a positioning pressure plate 44 covering the battery and a jig clamp 45 for pressing the positioning pressure plate 44. The side of the positioning pressure plate 44 has a positioning piece 441 that presses the tabs and copper busbars at the positioning groove 43. The positioning groove 43 can initially position the tabs and copper busbars. The positioning pressure plate 44 and the positioning piece 441 work together to firmly fix the tabs and copper busbars, preventing displacement during welding and ensuring welding effect.

[0024] Furthermore, the welding table 1 is equipped with a jig assembly table 5, which has a support block 51 corresponding to the welding station. The jig assembly table 5 also has an assembly clamp 52 that works with the support block 51 to initially position the copper busbar and the electrode tab. When the jig plate 4 is in use, it can be placed on the jig assembly table 5 first, and then the copper busbar and the battery can be placed on it. The support block 51 and the assembly clamp 52 are used to initially position the copper busbar and the electrode tab. Then, the positioning pressure plate 44 is covered, and the positioning piece 441 on the positioning pressure plate 44 is used to press the copper busbar and the electrode tab together. Finally, the jig clamp 45 is used to press the positioning pressure plate 44, which is convenient, quick and improves assembly efficiency.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A welding apparatus for processing copper busbars, comprising a welding table and welding fixtures and a welding machine disposed on the welding table, characterized in that, The welding fixture includes a translation slide rail set on the welding table and a fixture table slidably mounted on the translation slide rail. The fixture table is equipped with a fixture plate for placing batteries and copper busbars. A welding machine is set at each end of the translation slide rail on the welding table. Welding stations for accommodating copper busbars and battery tabs are set on both sides of the fixture plate. The welding machine is equipped with a welding base corresponding to the welding station and a welding head that is located above the welding base and can be raised and lowered.

2. The welding device for copper busbar processing according to claim 1, characterized in that, The welding table is equipped with a lifting platform and a lifting cylinder that drives the lifting platform to move up and down. The translation slide rail is set on the lifting platform.

3. The welding device for copper busbar processing according to claim 1, characterized in that, The fixture table is equipped with alignment posts, and the fixture plate is equipped with alignment holes corresponding to the alignment posts.

4. The welding device for copper busbar processing according to claim 1, characterized in that, The fixture plate has a hollowed-out section at the welding station that corresponds to the welding base and welding head. The shape of the hollowed-out section is adapted to the welding base.

5. The welding device for copper busbar processing according to claim 1, characterized in that, The fixture plate has a positioning groove for placing the tabs and copper busbars at the welding station. The fixture plate also has a positioning pressure plate covering the battery and a fixture clamp for pressing the positioning pressure plate. The side of the positioning pressure plate has a positioning piece that presses the tabs and copper busbars at the positioning groove.

6. The welding apparatus for copper busbar processing according to claim 1 or 5, characterized in that, The welding table is equipped with a jig assembly table, which has a support block corresponding to the welding station. The jig assembly table is also equipped with an assembly clamp that works with the support block to initially position the copper busbar and the electrode tab.