Copper bar flexible connection welding apparatus and method

Abstract

The present application relates to copper bar soft connection processing equipment, discloses copper bar soft connection welding equipment and its method, including: operation platform; welding machine, set in the side of operation platform; clamp assembly, including positioning table and clamp, positioning table is fixed on operation platform, positioning table is equipped with positioning groove, clamp is installed on positioning groove with copper bar soft connection; manipulator, set between welding machine and operation platform, manipulator is equipped with mechanical claw for clamping clamp and copper bar soft connection to welding machine; conveying assembly, including conveying table and guide rail mechanism, conveying table slides on guide rail mechanism, for conveying clamp and copper bar soft connection to the material taking position of manipulator. Through the integration of welding machine, clamp assembly, manipulator and conveying assembly around operation platform, the compact and efficient automatic welding unit is formed; wherein, the positioning groove on the positioning table cooperates with the clamp, the accurate clamping and positioning of the end of the copper bar soft connection can be realized, and the stable and reliable welding position is ensured.

Description

Technical Field

[0001] This invention relates to equipment for processing flexible copper busbar connections, and more particularly to equipment and methods for welding flexible copper busbar connections. Background Technology

[0002] In existing technologies, the production of flexible copper busbars mostly employs semi-automatic or manual methods, resulting in low production efficiency, high labor costs, and poor product consistency. To address this, Chinese patent document CN117961564A discloses a "fully automated production system for flexible copper busbars." This system includes a feeding mechanism, a cutting mechanism, a stacking mechanism, a welding mechanism, a cooling mechanism, a die-cutting mechanism, and a polishing mechanism, achieving fully automated production from unwinding of flexible copper sheets to finished flexible copper busbars. This solution effectively improves production efficiency and product quality while reducing manual intervention through processes such as circular knife cutting, automatic stacking, resistance welding, cooling and conveying, end die-cutting, and polishing.

[0003] However, the aforementioned fully automated production systems are primarily designed for the integral molding of flexible copper busbars, resulting in a relatively complex structure suitable for continuous production of large-scale, standardized products. In practical applications, existing systems are ill-suited for specific structural components like flexible copper busbar connectors, especially in situations requiring precise welding at the ends. During the production of flexible copper busbar connectors, the ends typically need to be positioned, clamped, and welded. Using general-purpose automated equipment presents problems such as poor fixture adaptability, inconvenient material handling, and insufficient welding positioning accuracy. Therefore, it is necessary to develop a compact, flexible, and precisely positioned welding device specifically designed for the structural characteristics of flexible copper busbar connectors to improve the production efficiency and welding quality of such products. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a copper busbar flexible connection welding device and method.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: Copper busbar flexible connection welding equipment, including: Control panel; A welding machine, located on the side of the operating table, is used to weld the ends of copper busbar flexible connections. The fixture assembly includes a positioning table and a fixture. The positioning table is fixed on the operating table and has a positioning groove. The fixture, carrying a copper busbar flexible connection, is installed on the positioning groove. The fixture is used to hold the end of the copper busbar flexible connection to be welded. A robotic arm is positioned between the welding machine and the operating table. The robotic arm is equipped with mechanical claws for gripping fixtures and copper busbars that are softly connected to the welding machine. The conveying assembly includes a conveyor table and a guide rail mechanism. The conveyor table slides on the guide rail mechanism and is used to convey the clamps and copper busbar flexible connections to the picking position of the robot arm.

[0006] Preferably, the positioning groove includes a copper busbar positioning groove and a fixture positioning groove. The copper busbar positioning groove is connected to the fixture positioning groove. The positioning platform is provided with a notch that communicates with the fixture positioning groove. The copper busbar positioning groove is used to place the horizontal part of the copper busbar flexible connection, and the fixture positioning groove is used to place the fixture.

[0007] Preferably, the fixture includes a base, a pressure plate, a drive unit, and a locking block. The base is placed on the fixture positioning groove, and the base is provided with a bending groove flush with the copper busbar positioning groove. The drive unit is connected to the pressure plate and is used to drive the pressure plate to press the copper busbar flexible connection on the bending groove. The locking block is detachably locked onto the base and is used to keep the end of the copper busbar flexible connection to be welded in a bent state.

[0008] Preferably, the conveyor table is provided with a clamp support seat and a copper busbar support seat. The clamp support seat is provided with a clamp groove for positioning the clamp, and the copper busbar support seat is provided with a copper busbar groove for positioning the copper busbar.

[0009] Preferably, the mechanical gripper includes a support plate, a clamping jaw, and a copper busbar jaw. The clamping jaw and the copper busbar jaw are respectively located at both ends of the support plate. The clamping jaw includes a first cylinder and a first claw. The first cylinder is connected to the first claw and drives it to grip the clamp. The copper busbar jaw includes a second cylinder and a second claw. The second cylinder is connected to the second claw and drives it to grip the copper busbar flexible connection.

[0010] Preferably, the first claw is mounted on the first cylinder via a first track, and the second claw is mounted on the second cylinder via a second track, with the extension direction of the first track perpendicular to the extension direction of the second track.

[0011] Preferably, a cooling tank for holding coolant is provided between the welding machine and the operating table, the robot arm is located on the side of the cooling tank, and a storage tray for placing the cooled copper busbar flexible connection is installed on the operating table near one end of the cooling tank.

[0012] Preferably, a grid frame is fixed on the operating table, and the grid frame is positioned between the robot arm and the gripper assembly.

[0013] The method for welding flexible copper busbars includes the following steps: S1, stack several copper busbars on the positioning groove and clamp them with a clamp. Insert the locking block into the base and bend the welding end of the copper busbar flexible connection. Then insert a nickel sheet into the welding end of the copper busbar flexible connection. S2, the copper busbar flexible connection to be welded is transferred to the conveying assembly, and the conveying assembly conveys the fixture and the copper busbar flexible connection to the gripping area of ​​the robot arm; S3, the gripper on the robotic arm holds the clamp on the fixture, the copper busbar gripper holds the end of the copper busbar flexible connection, and the robotic arm transfers the welding end of the copper busbar flexible connection on the fixture to the welding machine. S4, the welding machine welds the welding end of the copper busbar flexible connection on the robotic arm, so that the nickel sheet and several copper busbar sheets are fixedly connected. S5, the robotic arm transfers the welded copper busbar flexible connection to the cooling tank for cooling; S6, the robotic arm transfers the cooled copper busbar flexible connection to the storage tray.

[0014] This invention, by adopting the above technical solutions, has significant technical effects: By integrating the welding machine, fixture assembly, robot, and conveying assembly around the operating table, a compact and efficient automated welding unit is formed. The positioning slot on the positioning table works with the fixture to accurately clamp and position the ends of the copper busbar flexible connector, ensuring a stable and reliable welding position. The robot, in conjunction with the mechanical gripper, automatically completes the picking, placing, and transferring of fixtures and workpieces. The conveying assembly uses a guide rail mechanism to smoothly feed the fixtures and copper busbar flexible connectors. Overall, it reduces manual intervention, significantly improves welding efficiency and consistency, and has a flexible structural design to adapt to the processing needs of products of various specifications, with good practicality and scalability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the invention without the installation of the space frame.

[0017] Figure 3 This is a structural diagram of the fixture assembly.

[0018] Figure 4 This is a schematic diagram of the fixture.

[0019] Figure 5 This is a structural diagram of the positioning stage.

[0020] Figure 6 This is a schematic diagram of the conveying component.

[0021] Figure 7 This is a schematic diagram of the mechanical gripper.

[0022] Figure 8 This is a schematic diagram of the robotic arm.

[0023] The names of the body parts referred to by the numbers in the above attached diagrams are as follows: 1—Control Panel 2—Welding machine 3—Clamp assembly, 31—Positioning table, 32—Clamp, 33—Positioning groove, 34—Notch, 321—Base, 322—Pressure plate, 323—Drive device, 324—Clamping block, 325—Bending groove, 331—Copper busbar positioning groove, 332—Clamp positioning groove 4—Mechanical arm, 40—Mechanical gripper, 41—Support plate, 42—Clamp gripper, 43—Copper busbar gripper, 411—Adjustment hole, 421—First cylinder, 422—First gripper, 423—First track, 431—Second cylinder, 432—Second gripper, 433—Second track 5—Conveying assembly, 51—Conveying table, 52—Guide rail mechanism, 53—Clamp support base, 54—Copper busbar support base, 531—Clamp groove, 541—Copper busbar groove 6—Cooling tank 7—Storage tray 8—Space Frame Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-8 The invention will be further described in detail with reference to the embodiments. Example 1

[0025] Copper busbar flexible connection welding equipment, such as Figure 1-3 As shown in Figures 5 and 6, including: Control panel 1; Welding machine 2 is set on the side of operating table 1 and is used to weld the ends of copper busbar flexible connections; The fixture assembly 3 includes a positioning table 31 and a fixture 32. The positioning table 31 is fixed on the operating table 1. The positioning table 31 is provided with a positioning groove 33. The fixture 32 is installed on the positioning groove 33 with a copper busbar flexible connection. The fixture 32 is used to hold the end of the copper busbar flexible connection to be welded. The robotic arm 4 is positioned between the welding machine 2 and the operating table 1. The robotic arm 4 has multiple rotary joints. In this embodiment, the robotic arm 4 has three rotary joints, thereby ensuring that the robotic arm 4 can transfer the workpiece on the operating table 1 to the welding machine 2. The robotic arm 4 is equipped with a clamping fixture 32 and a mechanical claw 40 that is flexibly connected to the welding machine 2 via a copper busbar. The conveying assembly 5 includes a conveying table 51 and a guide rail mechanism 52. The conveying table 51 slides on the guide rail mechanism 52 and is used to convey the clamp 32 and the copper busbar flexible connection to the picking position of the robot arm 4.

[0026] By setting up the conveying component 5, the clamp 32 and the copper busbar flexible connector are automatically transported to the picking position. Combined with the robotic arm 4, the workpiece is automatically picked up, placed, and transferred between the positioning table 31 and the welding machine 2, significantly reducing manual intervention and improving welding efficiency and automation. The positioning table 31 is equipped with a positioning groove 33, which works in conjunction with the clamp 32 to ensure that the end of the copper busbar flexible connector is accurately and stably positioned before welding, thereby improving welding quality and consistency. The overall structure is compact, with all components integrated around the operating table 1, occupying little space. Furthermore, by changing different specifications of the clamp 32, it can adapt to various models of copper busbar flexible connectors, possessing good versatility and scalability.

[0027] Working principle: When the equipment is working, several copper busbars are first stacked on the positioning groove 33 of the positioning table 31 and clamped by the clamp 32. The welding end of the copper busbar flexible connection is bent by the locking block 324 and the welding end is inserted into the base 321 to complete the pre-assembly. Then, the copper busbar flexible connection to be welded is transferred to the conveying assembly 5. The conveying table 51 slides along the guide rail mechanism 52 to transport the clamp 32 and the copper busbar flexible connection to the gripping area of ​​the robot arm 4. The robot arm 4 holds the clamp 32 by the clamping claw 42 on the mechanical claw 40, and at the same time holds the end of the copper busbar flexible connection by the copper busbar claw 43, and moves the welding end of the copper busbar flexible connection to the welding machine 2. The welding machine 2 welds the welding end, so that the nickel sheet is fixedly connected to several copper busbars to form a whole.

[0028] like Figure 5 As shown, the positioning groove 33 includes a copper busbar positioning groove 331 and a clamp positioning groove 332. The copper busbar positioning groove 331 is connected to the clamp positioning groove 332. The positioning platform 31 is provided with a notch 34 that communicates with the clamp positioning groove 332. The copper busbar positioning groove 331 is used to place the horizontal part of the copper busbar flexible connection, and the clamp positioning groove 332 is used to place the clamp 32.

[0029] like Figure 4 As shown, the fixture 32 includes a base 321, a pressure plate 322, a drive device 323, and a locking block 324. In use, the base 321 is placed on the fixture positioning groove 332. The base 321 has a bending groove 325 flush with the copper busbar positioning groove 331. Stacked copper busbar sheets are placed on the copper busbar positioning groove 331 and the bending groove 325, so that the welding end of the copper busbar flexible connection corresponds to the position of the bending groove 325. The drive device 323 is connected to the pressure plate 322 and is used to drive the pressure plate 322 to press the copper busbar flexible connection on the bending groove 325. The locking block 324 is detachably engaged with the base 321 and is used to keep the welding end of the copper busbar flexible connection in a bent state, providing a precise positioning basis for subsequent nickel sheet insertion and welding processes. The fixture 32, through the bending groove 325 on the base 321 and the pressure plate 322, achieves precise bending and clamping of the copper busbar flexible connection welding end, ensuring that the stacked multi-layer copper busbar sheets do not misalign during the bending process. The locking block 324 is detachably locked into the base 321, maintaining the bent shape of the end to be welded after being pressed by the pressure plate 322, avoiding springback or deformation before welding, and significantly improving the positional accuracy of the welding end and the stability of welding quality. At the same time, the flush design of the base 321 and the positioning groove 33 ensures rapid and accurate positioning between the fixture 32 and the positioning table 31, and the drive device 323 realizes automatic clamping, reducing manual operation and improving assembly efficiency and consistency.

[0030] like Figure 6As shown, the conveyor table 51 is equipped with a clamp support base 53 and a copper busbar support base 54. The clamp support base 53 has a clamp groove 531 for positioning the clamp 32; the copper busbar support base 54 has a copper busbar groove 541 for positioning the copper busbar flexible connection. When the clamp 32 and the copper busbar flexible connection are placed together on the conveyor table 51, the clamp 32 is precisely fixed by engaging the clamp groove 531, while the main body of the copper busbar flexible connection is positioned within the copper busbar groove 541, ensuring that it maintains a consistent relative position with the clamp 32 during conveying. This ensures that the workpiece is stable and accurately positioned when it is slidably conveyed to the picking position of the robot arm 4. The conveyor table 51 is equipped with a clamp support base 53 with a clamp groove 531 and a copper busbar support base 54 with a copper busbar groove 541, which realizes independent positioning and synchronous support of the clamp 32 and the copper busbar flexible connection during conveying, avoiding relative offset or shaking during movement, and effectively improving the consistency and repeatability of the loading position. This structure provides a stable reference for the automatic gripping of the robotic arm 4, reducing the risk of gripping failure or posture deviation. At the same time, it facilitates the quick replacement of different specifications of clamps and copper busbars, enhancing the versatility of the equipment and production flexibility.

[0031] like Figure 7 and 8 As shown, the mechanical gripper 40 includes a support plate 41, a clamping jaw 42, and a copper busbar gripper 43. The clamping jaw 42 and the copper busbar gripper 43 are respectively located at both ends of the support plate 41. The support plate 41 is provided with an adjustment hole 411. The position of the copper busbar gripper 43 on the support plate 41 can be adjusted by adjusting the hole 411, thereby adjusting the distance between the clamping jaw 42 and the copper busbar gripper 43. The clamping jaw 42 includes a first cylinder 421 and a first claw 422. The first cylinder 421 is connected to the first claw 422 and drives it to grip the clamp 32. The copper busbar gripper 43 includes a second cylinder 431 and a second claw 432. The second cylinder 431 is connected to the second claw 432 and drives it to grip the copper busbar flexible connection. When the robotic arm 4 moves to the material handling position, the support plate 41 drives the grippers at both ends to move synchronously. This allows the gripper gripper 42 to hold the fixture 32 while the copper busbar gripper 43 holds the main body of the copper busbar flexible connector, thus stably gripping the fixture 32 and the copper busbar flexible connector as a whole and maintaining their relative position during transfer to the welding station. By setting the gripper gripper 42 and the copper busbar gripper 43 at both ends of the support plate 41, the robotic arm 40 achieves synchronous gripping and overall transfer of the fixture 32 and the copper busbar flexible connector, avoiding relative displacement or posture deviation that might occur with separate gripping, and ensuring the positional accuracy and stability of the welding end during transfer. The gripper gripper 42 and the copper busbar gripper 43 are each driven by an independent cylinder, allowing for flexible adjustment according to different specifications of fixtures and copper busbars, providing good adaptability. The overall structure is integrated on the support plate 41, occupying little space and facilitating rapid loading and unloading by the robotic arm 4, effectively improving the efficiency and reliability of automated welding operations.

[0032] like Figure 7 As shown, the first claw 422 is mounted on the first cylinder 421 via the first track 423 and is driven by the first cylinder 421 to move along the extension direction of the first track 423, thereby clamping and releasing the clamp 32. The second claw 432 is mounted on the second cylinder 431 via the second track 433 and is driven by the second cylinder 431 to move along the extension direction of the second track 433, thereby clamping and releasing the copper busbar flexible connection. The extension direction of the first track 423 is perpendicular to the extension direction of the second track 433, allowing the clamp claws 42 to clamp the flat parts on both sides of the clamp 32 from a direction perpendicular to the driving device 323 on the clamp 32. This effectively avoids problems such as unstable clamping, positioning deviation, or equipment damage caused by the claws accidentally clamping onto the driving device 323, significantly improving the reliability and safety of clamping. Meanwhile, during the rotation and transfer process of the robotic arm 4, the clamp 32 and the copper busbar soft connection maintain a stable and firm posture, ensuring that the welding end can be accurately aligned with the welding position of the welding machine 2, thereby improving welding accuracy and product quality.

[0033] like Figure 2 As shown, a cooling tank 6 for holding coolant is provided between the welding machine 2 and the operating table 1. The cooling tank 6 is filled with cooling water. The robot arm 4 is located on the side of the cooling tank 6, so that the welded copper busbar flexible connection can be quickly cooled and unloaded within the same working stroke of the robot arm 4, without the need for additional transfer equipment, shortening the process flow time and improving production efficiency. A storage tray 7 for placing the cooled copper busbar flexible connection is installed on the operating table 1 near the cooling tank 6. The storage tray 7 is installed on the operating table 1 near the cooling tank 6, which makes it convenient for the robot arm 4 to place the finished product nearby after cooling, further simplifying the motion path. The overall layout is compact and reasonable, improving the smoothness and safety of the automated production line. After the welding machine 2 completes the welding of the copper busbar flexible connection end, the robot arm 4 clamps the workpiece with the mechanical claw 40 and directly transfers the welded copper busbar flexible connection to the cooling tank 6 for rapid cooling by immersing it in the coolant. After cooling is completed, the robot arm 4 takes the copper busbar flexible connection out of the cooling tank 6 and places it on the storage tray 7 on the operating table 1 near the end of the cooling tank 6, thus achieving a tight connection between the three processes of welding, cooling and unloading.

[0034] like Figure 1 As shown, a grid frame 8 is fixed on the operating table 1. The grid frame 8 is set between the robot arm 4 and the clamping assembly 3, which effectively prevents interference between the operator and the robot arm 4, reduces the risk of personal injury during equipment operation, and improves the safety protection level of the equipment. Example 2

[0035] A method for welding flexible copper busbars, characterized by comprising the following steps: S1, stack several copper busbars on the positioning groove 33 and clamp them with the clamp 32. The locking block 324 is inserted into the base 321 and the welding end of the copper busbar flexible connection is bent. Then, a nickel sheet is inserted into the welding end of the copper busbar flexible connection. S2, the copper busbar flexible connection to be welded is transferred to the conveying assembly 5, and the conveying assembly 5 conveys the clamp 32 and the copper busbar flexible connection to the gripping area of ​​the robot arm 4; S3, the gripper 42 on the robot arm 4 clamps on the gripper 32, and the copper busbar gripper 43 clamps on the end of the copper busbar flexible connection. The robot arm 4 transfers the welding end of the copper busbar flexible connection on the gripper 32 to the welding machine 2. S4, welding machine 2 welds the welding end of the copper busbar soft connection on robot arm 4. The welding temperature is controlled at 380-450℃ and the welding time is 10-20 seconds, so that the nickel sheet and several copper busbar sheets are fixedly connected. S5, the robotic arm 4 transfers the welded copper busbar flexible connection to the cooling tank 6 for cooling; S6, the robotic arm 4 transfers the cooled copper busbar flexible connection to the storage tray 7.

Claims

1. A copper busbar flexible connection welding equipment, characterized in that, include: Control panel (1); Welding machine (2) is set on the side of the operating table (1) and is used to weld the ends of the copper busbar flexible connection; The fixture assembly (3) includes a positioning table (31) and a fixture (32). The positioning table (31) is fixed on the operating table (1). The positioning table (31) is provided with a positioning groove (33). The fixture (32) is installed on the positioning groove (33) with a copper busbar flexible connection. The fixture (32) is used to hold the end of the copper busbar flexible connection to be welded. A robotic arm (4) is set between the welding machine (2) and the operating table (1). The robotic arm (4) is equipped with a gripper (32) and a copper busbar that is flexibly connected to the welding machine (2). The conveying assembly (5) includes a conveying table (51) and a guide rail mechanism (52). The conveying table (51) slides on the guide rail mechanism (52) to convey the clamp (32) and the copper busbar soft connection to the picking position of the robot (4).

2. The copper busbar flexible connection welding equipment according to claim 1, characterized in that: The positioning groove (33) includes a copper busbar positioning groove (331) and a fixture positioning groove (332). The copper busbar positioning groove (331) is connected to the fixture positioning groove (332). The positioning platform (31) is provided with a notch (34) that is connected to the fixture positioning groove (332). The copper busbar positioning groove (331) is used to place the horizontal part of the copper busbar flexible connection, and the fixture positioning groove (332) is used to place the fixture (32).

3. The copper busbar flexible connection welding equipment according to claim 2, characterized in that: The fixture (32) includes a base (321), a pressure plate (322), a drive device (323), and a locking block (324). The base (321) is placed on the fixture positioning groove (332). The base (321) is provided with a bending groove (325) flush with the copper busbar positioning groove (331). The drive device (323) is connected to the pressure plate (322) and is used to drive the pressure plate (322) to press the copper busbar flexible connection on the bending groove (325). The locking block (324) is detachably locked on the base (321) and is used to keep the end of the copper busbar flexible connection to be welded in a bent state.

4. The copper busbar flexible connection welding equipment according to claim 1, characterized in that: The conveyor table (51) is provided with a clamp support seat (53) and a copper busbar support seat (54). The clamp support seat (53) is provided with a clamp groove (531) for positioning the clamp (32), and the copper busbar support seat (54) is provided with a copper busbar groove (541) for positioning the copper busbar.

5. The copper busbar flexible connection welding equipment according to claim 1, characterized in that: The mechanical gripper (40) includes a support plate (41), a clamping jaw (42), and a copper busbar jaw (43). The clamping jaw (42) and the copper busbar jaw (43) are respectively located at both ends of the support plate (41). The clamping jaw (42) includes a first cylinder (421) and a first claw (422). The first cylinder (421) is connected to the first claw (422) and drives it to grip the clamp (32). The copper busbar jaw (43) includes a second cylinder (431) and a second claw (432). The second cylinder (431) is connected to the second claw (432) and drives it to grip the copper busbar flexible connection.

6. The copper busbar flexible connection welding equipment according to claim 5, characterized in that: The first claw (422) is mounted on the first cylinder (421) via the first track (423), and the second claw (432) is mounted on the second cylinder (431) via the second track (433). The extension direction of the first track (423) is perpendicular to the extension direction of the second track (433).

7. The copper busbar flexible connection welding equipment according to claim 1, characterized in that: A cooling tank (6) for holding coolant is provided between the welding machine (2) and the operating table (1). The robot (4) is located on the side of the cooling tank (6). A storage tray (7) for placing the cooled copper busbar flexible connection is installed on the operating table (1) near the end of the cooling tank (6).

8. The copper busbar flexible connection welding equipment according to claim 1, characterized in that: A grid frame (8) is fixed on the operating table (1), and the grid frame (8) is set between the robot (4) and the clamp assembly (3).

9. A method for welding flexible copper busbars, characterized in that, Includes the following steps: S1, stack several copper busbars on the positioning groove (33) and clamp them with the clamp (32). The locking block (324) is inserted into the base (321) and the welding end of the copper busbar flexible connection is bent. Then, a nickel sheet is inserted into the welding end of the copper busbar flexible connection. S2, the copper busbar flexible connection to be welded is transferred to the conveying assembly (5), and the conveying assembly (5) conveys the clamp (32) and the copper busbar flexible connection to the gripping area of ​​the robot (4); S3, the gripper (42) on the robot (4) clamps on the fixture (32), the copper busbar gripper (43) clamps on the end of the copper busbar flexible connection, and the robot (4) transfers the welding end of the copper busbar flexible connection on the fixture (32) to the welding machine (2); S4, the welding machine (2) welds the welding end of the copper busbar soft connection on the robot (4) so ​​that the nickel sheet and several copper busbar sheets are fixedly connected; S5, the robotic arm (4) transfers the welded copper busbar flexible connection to the cooling tank (6) for cooling; S6, the robotic arm (4) transfers the cooled copper busbar flexible connection to the storage tray (7).

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