Welding process of battery busbar

Abstract

The invention relates to the technical field of battery busbar welding, and provides a battery busbar welding technology which comprises a laser welding head set and further comprises a welding box, a weldment carrying frame, a weldment positioning assembly, a weldment feeding assembly, a welding mechanism with a monitoring function and a smoke removing and cooling assembly. The weldment carrying frame is arranged on the carrying frame in a sliding mode, the weldment positioning assembly is arranged on the weldment carrying frame and used for fixing a battery busbar frame, the weldment feeding assembly is arranged in the welding box, the weldment feeding assembly is connected with the weldment carrying frame and used for driving the weldment carrying frame to move, and the welding mechanism is arranged in the welding box. By means of the technical scheme, the battery busbar welding process solves the problems that in the prior art, when a battery busbar is welded, the busbar frame is difficult to accurately position, and deformation or pseudo soldering of the busbar frame is likely to happen.

Description

Technical Field

[0001] The present invention relates to the technical field of battery busbar welding, and in particular to a welding process for a battery busbar. Background Art

[0002] In today's era of rapid technological development, batteries, as an important energy storage and conversion device, play an indispensable role in many fields, from the power source of electric vehicles to the power supply unit of portable electronic devices, to the application of large-scale energy storage systems. The performance and reliability of batteries directly affect the operation of the entire system.

[0003] Among them, the battery bus, as a key component connecting battery cells, modules or battery packs, undertakes the important task of current transmission and distribution. However, the quality of battery bus welding is directly related to the electrical performance, thermal management performance and overall safety of the battery. A good welding process can effectively reduce connection resistance, reduce energy loss, and improve battery charging and discharging efficiency, while ensuring the stability and reliability of the battery pack during long-term use.

[0004] At present, for welding battery busbars, common battery busbar welding processes include resistance welding, ultrasonic welding, etc. Although resistance welding has the advantages of simple equipment and easy operation, it realizes welding through the resistance heat generated by the current at the contact point of the weldment, and there are problems such as unstable welding joint quality, easy spatter or deformation of the busbar. Ultrasonic welding uses high-frequency vibration waves to transmit to the surfaces of two objects to be welded, and makes them rub against each other under pressure to form fusion between molecular layers. Although this process has fast welding speed and high weld strength, it has high equipment cost and strict requirements on the cleanliness and flatness of the weldment surface. In addition, the high-frequency vibration generated during the welding process may cause dislocation of the internal structure of the battery or the welding joint of the busbar to cause cold welding, thereby affecting the welding quality of the busbar. Summary of the invention

[0005] The present invention proposes a battery bus welding process to solve the problem raised in the background technology that in the prior art battery bus welding process, it is generally difficult to accurately position the bus frame when welding the battery bus, which easily causes the bus frame to deform or have cold welds.

[0006] The technical solution of the present invention is as follows: A welding process for a battery busbar, comprising a laser welding head group, a welding box, a weldment carrier, a weldment positioning assembly, a weldment feeding assembly, a welding mechanism with a monitoring function, and a smoke removal and cooling assembly;

[0007] A loading frame is provided in the welding box;

[0008] The weldment carrier is slidably arranged on the carrier frame;

[0009] The weldment positioning assembly is arranged on the weldment carrier and is used to fix the battery busbar rack;

[0010] The weldment loading assembly is arranged in the welding box, and the weldment loading assembly is connected to the weldment loading rack to drive the weldment loading rack to move;

[0011] The welding mechanism is arranged in the welding box and is used for welding the busbar;

[0012] The smoke removal and cooling component is connected and arranged on the welding box, and is used for centrally exhausting the smoke in the welding box, and is also used for cooling the welding points on the busbar.

[0013] As a preferred technical solution of the present application, the weldment positioning assembly includes a package box positioning portion and a rack positioning portion;

[0014] There are two package box positioning parts, which are symmetrically arranged on the weldment carrier and are used to fix the battery package box below the busbar;

[0015] There are two rack positioning parts, which are symmetrically and slidably arranged on the weldment carrier to fix the busbar.

[0016] The package box positioning part includes a positioning group 1 with a telescopic function and a package box positioning plate;

[0017] The positioning group is penetrated and slidably arranged on the weldment carrier;

[0018] The package box positioning plate is arranged on one side of the first positioning group;

[0019] Wherein, the first adjustment group includes an adjustment slide rod, an adjustment plate and an adjustment spring;

[0020] There are a plurality of positioning slide bars, which penetrate and are slidably arranged on the weldment carrier, and one end of the positioning slide bar is connected to one end of the package box positioning plate;

[0021] The adjustment plate is arranged at the other end of the adjustment slide rod;

[0022] There are multiple positioning springs, and the positioning springs correspond to the positioning slide rods one by one. The positioning springs are arranged between the positioning plate and the weldment carrier, and the positioning slide rod is located in the positioning springs.

[0023] On the basis of the above scheme, the rack positioning part includes a height adjustment rack, a second adjustment group and a rack positioning plate;

[0024] The height adjustment frame is slidably arranged on the weldment carrier, and a plurality of fixing bolts for fixing the height adjustment frame are threadedly connected to the weldment carrier;

[0025] The second position adjustment group penetrates and is slidably arranged on the height adjustment frame, and the second position adjustment group has the same structure as the height adjustment frame;

[0026] The rack positioning plate is arranged on one side of the second adjustment group.

[0027] On the basis of the above scheme, the weldment feeding assembly includes a feeding screw, a feeding slider, a feeding motor and a feeding positioning frame;

[0028] The feeding screw is rotatably arranged in the welding box, and a feeding ball nut group is threadedly connected to the feeding screw;

[0029] The feeding slide block is slidably disposed in the welding box, and the feeding slide block is connected to the feeding ball nut assembly;

[0030] The feeding motor is installed on one side of the welding box, and the output end of the feeding motor is connected to one end of the feeding screw rod;

[0031] The loading and positioning frame is arranged between the weldment carrier and the loading slide block.

[0032] On the basis of the above scheme, the welding mechanism includes an X-axis positioning assembly, a Y-axis positioning frame, a Y-axis positioning assembly and a welding assembly with a monitoring function;

[0033] The X-axis positioning assembly is arranged on the welding box;

[0034] The Y-axis positioning frame is arranged on the X-axis positioning assembly;

[0035] The Y-axis positioning component is arranged on the Y-axis positioning frame;

[0036] The welding assembly is arranged on the Y-axis positioning assembly and is used for welding the battery bus.

[0037] On the basis of the above scheme, the X-axis positioning assembly has the same structure as the Y-axis positioning assembly;

[0038] The X-axis positioning assembly and the Y-axis positioning assembly both include a positioning screw, a positioning ball nut assembly, a positioning motor, a limiting slide rod and a positioning slider;

[0039] The positioning screw in the X-axis positioning assembly is rotatably arranged on the welding box, and the positioning screw in the Y-axis positioning assembly is rotatably arranged on the Y-axis positioning frame;

[0040] The positioning ball nut assembly is threadedly connected to the positioning screw rod;

[0041] The positioning motor in the X-axis positioning assembly is installed on one side of the welding box, and the positioning motor in the Y-axis positioning assembly is installed on one side of the Y-axis positioning frame, and the output end of the positioning motor is connected to one end of the adjacent positioning screw rod;

[0042] The limit sliding rod in the X-axis positioning assembly is arranged on the welding box, and the limit sliding rod in the Y-axis positioning assembly is arranged on the Y-axis positioning frame;

[0043] The position adjusting slider is slidably arranged on the position limiting slider, and the position adjusting slider is connected to the adjacent position adjusting ball nut group;

[0044] The Y-axis positioning frame is arranged on the positioning slider in the X-axis positioning assembly;

[0045] The welding assembly is arranged on the positioning slider in the Y-axis positioning assembly.

[0046] On the basis of the above scheme, the welding assembly includes a Z-axis positioning plate, a Z-axis positioning cylinder, a welding plate and a welding monitoring camera;

[0047] The Z-axis positioning plate is arranged on the positioning slider in the Y-axis positioning assembly;

[0048] The Z-axis adjustment cylinder is mounted on the Z-axis adjustment plate;

[0049] The welding plate is arranged on the output end of the Z-axis positioning cylinder, and the laser welding head group is mounted on the welding plate;

[0050] The welding monitoring camera is installed on the welding plate, and the welding monitoring camera is located on one side of the laser welding head group.

[0051] On the basis of the above scheme, the smoke removal and cooling component includes a smoke removal pipe, a smoke removal fan and a cooling pipe;

[0052] The smoke removal pipe is connected and arranged on the welding box;

[0053] The smoke removal fan is installed in the smoke removal pipe;

[0054] The cooling pipe is connected and arranged on the welding box, and one end of the cooling pipe passes through one side of the weldment carrier.

[0055] On the basis of the above scheme, a feeding through hole is opened on one side of the welding box, a feeding sealing plate is arranged on one side of the weldment carrier, the feeding sealing plate is in sealing contact with the feeding through hole, and an observation hole is also opened on one side of the welding box, an observation window is installed in the observation hole.

[0056] The working principle and beneficial effects of the present invention are:

[0057] 1. In the present invention, when welding the battery busbar, the feeding motor is started, and the output end of the feeding motor drives the feeding screw rod to rotate, and the rotation of the feeding screw rod drives the feeding ball nut group to move, and the movement of the feeding ball nut group drives the feeding slider to move, and the movement of the feeding slider drives the feeding positioning frame to move, and the movement of the feeding positioning frame drives the welding part loading frame to move, and the movement of the welding part loading frame drives the feeding sealing plate to move to one side of the welding box, and then the assembled battery busbar is placed on the welding part loading plate, and the fixing bolts are loosened according to the position of the busbar in the battery busbar, and the position of the height adjustment frame is adjusted to make the rack positioning plate move to one side of the busbar, and the positioning spring and the positioning slide rod are driven to move by pulling the positioning plate, and under the rebound pressure of the positioning spring, the treasure box positioning plate and the rack positioning plate are fixed to the package box at the bottom of the battery busbar and the busbar at the top, so as to realize the fixation of the battery busbar;

[0058] 2. The present invention starts the feeding motor after fixing the battery busbar, moves the weldment carrier into the welding box, makes the feeding sealing plate contact with the feeding through hole, and then monitors the position of the welding spot on the busbar and the laser welding head group through the welding monitoring camera, starts the positioning motor in the X-axis positioning assembly and the Y-axis positioning assembly, so that the output end of the positioning motor drives the positioning ball nut group to move, and the movement of the positioning ball nut group drives the positioning slider to move, and the welding plate and the laser detection camera are driven to move under the movement of the positioning slider, and at the same time, the Z-axis positioning cylinder is started, and the welding plate and the laser detection camera are driven to move to any position above the battery busbar under the movement of the output end of the Z-axis positioning cylinder, and the welding head group is started to perform laser welding on the welding spot on the battery busbar;

[0059] 3. In the present invention, when laser welding is performed on the battery bus, the smoke removal fan is started. The smoke removal fan can blow the external gas to the spot welding part of the battery bus through the cooling tube. The blowing of wind can not only quickly cool the welding point, but also the smoke during the welding process will be discharged through the smoke outlet pipe. By arranging a smoke removal device at the smoke outlet pipe, the smoke can be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0061] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0062] Figure 2 It is a schematic diagram of the structure of a partial cross-section of the present invention;

[0063] Figure 3 It is a schematic diagram of the structure of the cooperation among the material loading frame, the weldment material loading rack, the weldment positioning assembly and the weldment feeding assembly in the present invention;

[0064] Figure 4 It is a structural schematic diagram of the welding mechanism in the present invention;

[0065] Figure 5 For the present invention Figure 4 A schematic diagram of the partially enlarged structure at point A in the middle;

[0066] Figure 6 It is a schematic structural diagram of another state of the present invention as a whole with a battery bus installed.

[0067] In the figure: 001, weldment positioning assembly; 002, weldment feeding assembly; 003, welding mechanism; 004, smoke removal and cooling assembly;

[0068] 1. Laser welding head assembly; 2. Welding box; 3. Loading frame; 4. Welding parts loading rack; 5. Carton positioning plate; 6. Adjustment slide bar; 7. Adjustment plate; 8. Adjustment spring; 9. Height adjustment rack; 10. Fixing bolt; 11. Rack positioning plate; 12. Feeding screw rod; 13. Feeding ball nut assembly; 14. Feeding slider; 15. Feeding motor; 16. Feeding adjustment rack; 17. Y-axis adjustment rack; 18. Adjustment screw rod; 19. Adjustment ball nut assembly; 20. Adjustment motor; 21. Limiting slide bar; 22. Adjustment slider; 23. Z-axis adjustment plate; 24. Z-axis adjustment cylinder; 25. Welding plate; 26. Welding monitoring camera; 27. Smoke removal pipe; 28. Smoke removal fan; 29. ​​Cooling pipe; 30. Feeding sealing plate; 31. Observation window. DETAILED DESCRIPTION

[0069] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] like Figures 1 to 6As shown, this embodiment proposes a welding process for a battery bus, including a laser welding head group 1, a welding box 2, a weldment carrier 4, a weldment positioning assembly 001, a weldment feeding assembly 002, a welding mechanism with a monitoring function 003 and a smoke removal and cooling assembly 004, wherein the laser welding head group 1 is a commonly used welding equipment for battery bus welding in the prior art, and the specific structure and supporting equipment are not the main innovation points of this application, and will not be elaborated on here.

[0071] A loading frame 3 is provided in the welding box 2, and a weldment loading rack 4 is slidably provided on the loading frame 3. The weldment loading rack 4 is provided for carrying operations of the battery bus.

[0072] Among them, a feeding through hole is opened on one side of the welding box 2, and a feeding sealing plate 30 is arranged on one side of the weldment carrier 4. The feeding sealing plate 30 is in sealing contact with the feeding through hole. An observation hole is also opened on one side of the welding box 2, and an observation window 31 is installed in the observation hole. By setting the observation hole, it is used to observe the conditions inside the welding box 2.

[0073] As mentioned above, the weldment positioning assembly 001 is arranged on the weldment carrier 4, and is used to fix the battery bus rack. The weldment positioning assembly 001 includes a box positioning portion and a rack positioning portion. There are two box positioning portions, and the two box positioning portions are symmetrically arranged on the weldment carrier 4, and are used to fix the battery box under the bus. There are two rack positioning portions, and the two rack positioning portions are symmetrically and slidably arranged on the weldment carrier 4, and are used to fix the bus.

[0074] Among them, the package box positioning part includes a positioning group 1 with a telescopic function and a package box positioning plate 5. The positioning group 1 penetrates and is slidably arranged on the weldment carrier 4, and the package box positioning plate 5 is arranged on one side of the positioning group 1.

[0075] Among them, the positioning group 1 includes a positioning slide rod 6, a positioning plate 7 and a positioning spring 8. There are multiple positioning slide rods 6, and the positioning slide rods 6 are penetrated and slidably set on the weldment carrier 4. One end of the positioning slide rod 6 is connected to one end of the package positioning plate 5. The positioning plate 7 is set at the other end of the positioning slide rod 6. There are multiple positioning springs 8, and the positioning springs 8 correspond to the positioning slide rods 6 one by one. The positioning spring 8 is set between the positioning plate 7 and the weldment carrier 4, and the positioning slide rod 6 is located in the positioning spring 8.

[0076] Among them, the rack positioning part includes a height adjustment frame 9, a positioning group 2 and a rack positioning plate 11. The height adjustment frame 9 is slidably set on the weldment carrier 4. The weldment carrier 4 is threaded with multiple fixing bolts 10 for fixing the height adjustment frame 9. The positioning group 2 penetrates and is slidably set on the height adjustment frame 9. The positioning group 2 has the same structure as the height adjustment frame 9, and the rack positioning plate 11 is set on one side of the positioning group 2.

[0077] Specifically, when placing the assembled battery busbar on the weldment loading plate, loosen the fixing bolts 10 according to the position of the busbar in the battery busbar, and move the rack positioning plate 11 to one side of the busbar by adjusting the position of the height adjustment frame 9. Pull the adjustment plate 7 to drive the adjustment spring 8 and the adjustment slide rod 6 to move. Under the rebound pressure of the adjustment spring 8, the treasure box positioning plate and the rack positioning plate 11 fix the package box at the bottom of the battery busbar and the busbar at the top, thereby fixing the battery bus.

[0078] As mentioned above, the weldment loading component 002 is arranged in the welding box 2, and the weldment loading component 002 is connected to the weldment loading rack 4, which is used to drive the weldment loading rack 4 to move. The weldment loading component 002 includes a loading screw 12, a loading slider 14, a loading motor 15 and a loading positioning frame 16. The loading screw 12 is rotatably arranged in the welding box 2, and a loading ball nut group 13 is threadedly connected to the loading screw 12. The loading slider 14 is slidably arranged in the welding box 2. The loading slider 14 is connected to the loading ball nut group 13. The loading motor 15 is installed on one side of the welding box 2, and the output end of the loading motor 15 is connected to one end of the loading screw 12. The loading positioning frame 16 is arranged between the weldment loading rack 4 and the loading slider 14.

[0079] Specifically, the feeding motor 15 is started, and the output end of the feeding motor 15 drives the feeding screw 12 to rotate, and the rotation of the feeding screw 12 drives the feeding ball nut group 13 to move, and the movement of the feeding ball nut group 13 drives the feeding slider 14 to move, and the movement of the feeding slider 14 drives the feeding positioning frame 16 to move, and the movement of the feeding positioning frame 16 drives the weldment loading frame 4 to move, and the movement of the weldment loading frame 4 drives the feeding sealing plate 30 to move, so that the feeding sealing plate 30 moves to one side of the welding box 2.

[0080] As mentioned above, the welding mechanism 003 is arranged in the welding box 2, and is used for welding the bus. The welding mechanism 003 includes an X-axis positioning assembly, a Y-axis positioning frame 17, a Y-axis positioning assembly and a welding assembly with a monitoring function. The X-axis positioning assembly is arranged on the welding box 2, the Y-axis positioning frame 17 is arranged on the X-axis positioning assembly, the Y-axis positioning assembly is arranged on the Y-axis positioning frame 17, and the welding assembly is arranged on the Y-axis positioning assembly, and is used for welding the battery bus.

[0081] Among them, the X-axis positioning assembly has the same structure as the Y-axis positioning assembly. Both the X-axis positioning assembly and the Y-axis positioning assembly include a positioning screw 18, a positioning ball nut group 19, a positioning motor 20, a limiting slide 21 and a positioning slide 22. The positioning screw 18 in the X-axis positioning assembly is rotatably set on the welding box 2, and the positioning screw 18 in the Y-axis positioning assembly is rotatably set on the Y-axis positioning frame 17. The positioning ball nut group 19 is threadedly connected to the positioning screw 18. The positioning motor 20 in the X-axis positioning assembly is installed on one side of the welding box 2. The positioning motor 20 in the Y-axis positioning assembly is installed on the other side of the welding box 2. The positioning motor 20 is installed on one side of the Y-axis positioning frame 17, and the output end of the positioning motor 20 is connected to one end of the adjacent positioning screw 18. The limiting slide bar 21 located in the X-axis positioning assembly is arranged on the welding box 2, and the limiting slide bar 21 located in the Y-axis positioning assembly is arranged on the Y-axis positioning frame 17. The positioning slider 22 is slidably arranged on the limiting slide bar 21, and the positioning slider 22 is connected to the adjacent positioning ball nut group 19. The Y-axis positioning frame 17 is arranged on the positioning slider 22 in the X-axis positioning assembly, and the welding assembly is arranged on the positioning slider 22 in the Y-axis positioning assembly.

[0082] Among them, the welding assembly includes a Z-axis adjustment plate 23, a Z-axis adjustment cylinder 24, a welding plate 25 and a welding monitoring camera 26. The Z-axis adjustment plate 23 is arranged on the adjustment slider 22 in the Y-axis adjustment assembly, the Z-axis adjustment cylinder 24 is installed on the Z-axis adjustment plate 23, the welding plate 25 is arranged on the output end of the Z-axis adjustment cylinder 24, the laser welding head group 1 is installed on the welding plate 25, the welding monitoring camera 26 is installed on the welding plate 25, and the welding monitoring camera 26 is located on one side of the laser welding head group 1.

[0083] Specifically, after the battery bus is fixed, the loading motor 15 is started, and the weldment carrier 4 is moved into the welding box 2 so that the loading sealing plate 30 contacts the loading through hole, and then the welding monitoring camera 26 is used to monitor the position of the weld points on the bus and the laser welding head group 1, and the positioning motor 20 in the X-axis positioning assembly and the Y-axis positioning assembly is started, so that the output end of the positioning motor 20 drives the positioning ball nut group 19 to move, and the movement of the positioning ball nut group 19 drives the positioning slider 22 to move, and the movement of the positioning slider 22 drives the welding plate 25 and the laser detection camera to move, and at the same time, by starting the Z-axis positioning cylinder 24, the output end of the Z-axis positioning cylinder 24 moves, and drives the welding plate 25 and the laser detection camera to move to any position above the battery bus, and by starting the welding head group, the weld points on the battery bus can be laser welded.

[0084] As mentioned above, the smoke removal and cooling component 004 is connected and arranged on the welding box 2, which is used for centralized exhaust of the smoke in the welding box 2 and for cooling the welding points on the bus. The smoke removal and cooling component 004 includes a smoke removal pipe 27, a smoke removal fan 28 and a cooling pipe 29. The smoke removal pipe 27 is connected and arranged on the welding box 2, the smoke removal fan 28 is installed in the smoke removal pipe 27, and the cooling pipe 29 is connected and arranged on the welding box 2. One end of the cooling pipe 29 passes through one side of the weldment carrier 4.

[0085] Specifically, when laser welding is performed on the battery bus, the smoke removal fan 28 is started. The smoke removal fan 28 can blow the external gas to the spot welding part of the battery bus through the cooling tube 29. The blowing of wind can not only quickly cool the welding point, but also the smoke during the welding process will be discharged through the smoke exhaust pipe. By setting a smoke removal device at the smoke exhaust pipe, the smoke can be processed.

[0086] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery busbar welding process, comprising a laser welding head assembly (1), characterized in that: Also includes: A welding box (2), wherein a material loading frame (3) is arranged inside the welding box (2); A weldment carrier (4), wherein the weldment carrier (4) is slidably arranged on the carrier frame (3); A weldment positioning assembly (001), the weldment positioning assembly (001) being arranged on the weldment carrier (4) and being used to fix the battery busbar rack; A weldment loading assembly (002), wherein the weldment loading assembly (002) is disposed in the welding box (2), and the weldment loading assembly (002) is connected to the weldment loading rack (4) and is used to drive the weldment loading rack (4) to move; A welding mechanism (003) with a monitoring function, the welding mechanism (003) being arranged in the welding box (2) and being used for welding the busbar; A smoke removal and cooling component (004) is connected to the welding box (2) and is used for centrally discharging smoke in the welding box (2) and for cooling the welding points on the busbar.

2. A battery busbar welding process according to claim 1, characterized in that: The weldment positioning assembly (001) comprises: A battery box positioning portion, wherein two battery box positioning portions are provided, and the two battery box positioning portions are symmetrically arranged on the weldment carrier (4) and are used to fix the battery box below the busbar; The rack positioning parts are provided with two rack positioning parts, and the two rack positioning parts are symmetrically and slidably arranged on the weldment carrier (4) for fixing the busbar.

3. A battery busbar welding process according to claim 2, characterized in that: The package box positioning unit comprises: A first positioning group with a telescopic function, the first positioning group penetrating through and slidably arranged on the weldment carrier (4); A package box positioning plate (5), the package box positioning plate (5) being arranged on one side of the first positioning group; Wherein, the first adjustment group includes: A positioning slide bar (6), wherein a plurality of the positioning slide bars (6) are provided, the positioning slide bars (6) penetrate through and are slidably arranged on the weldment carrier (4), and one end of the positioning slide bar (6) is connected to one end of the package box positioning plate (5); A position adjustment plate (7), wherein the position adjustment plate (7) is arranged at the other end of the position adjustment slide rod (6); A positioning spring (8), wherein a plurality of the positioning springs (8) are provided, wherein the positioning springs (8) correspond one to one with the positioning slide rods (6), the positioning springs (8) are arranged between the positioning plate (7) and the weldment carrier (4), and the positioning slide rods (6) are located inside the positioning springs (8).

4. A battery busbar welding process according to claim 3, characterized in that: The rack positioning unit comprises: A height adjustment frame (9), wherein the height adjustment frame (9) is slidably arranged on the weldment carrier (4), and a plurality of fixing bolts (10) for fixing the height adjustment frame (9) are threadedly connected to the weldment carrier (4); A second position adjustment group, the second position adjustment group penetrates and is slidably arranged on the height adjustment frame (9), and the second position adjustment group has the same structure as the height adjustment frame (9); A rack positioning plate (11), wherein the rack positioning plate (11) is arranged on one side of the second positioning group.

5. A battery busbar welding process according to claim 4, characterized in that: The weldment loading assembly (002) comprises: A feeding screw rod (12), the feeding screw rod (12) is rotatably arranged in the welding box (2), and a feeding ball nut group (13) is threadedly connected to the feeding screw rod (12); A loading slide block (14), the loading slide block (14) is slidably disposed in the welding box (2), and the loading slide block (14) is connected to the loading ball nut group (13); A feeding motor (15), the feeding motor (15) being installed on one side of the welding box (2), and the output end of the feeding motor (15) being connected to one end of the feeding screw rod (12); A loading and positioning frame (16) is provided between the weldment carrier frame (4) and the loading slide block (14).

6. A battery busbar welding process according to claim 5, characterized in that: The welding mechanism (003) comprises: An X-axis positioning component, the X-axis positioning component being arranged on the welding box (2); A Y-axis positioning frame (17), wherein the Y-axis positioning frame (17) is arranged on the X-axis positioning assembly; A Y-axis positioning component, wherein the Y-axis positioning component is arranged on the Y-axis positioning frame (17); A welding assembly with a monitoring function, wherein the welding assembly is arranged on the Y-axis positioning assembly and is used for welding the battery bus.

7. A battery busbar welding process according to claim 6, characterized in that: The X-axis positioning assembly has the same structure as the Y-axis positioning assembly; The X-axis positioning component and the Y-axis positioning component both include: A positioning screw (18), wherein the positioning screw (18) in the X-axis positioning assembly is rotatably mounted on the welding box (2), and the positioning screw (18) in the Y-axis positioning assembly is rotatably mounted on the Y-axis positioning frame (17); A positioning ball nut assembly (19), wherein the positioning ball nut assembly (19) is threadedly connected to the positioning screw rod (18); A positioning motor (20), wherein the positioning motor (20) in the X-axis positioning assembly is installed on one side of the welding box (2), and the positioning motor (20) in the Y-axis positioning assembly is installed on one side of the Y-axis positioning frame (17), and an output end of the positioning motor (20) is connected to one end of an adjacent positioning screw rod (18); A limiting slide bar (21), wherein the limiting slide bar (21) in the X-axis positioning assembly is arranged on the welding box (2), and the limiting slide bar (21) in the Y-axis positioning assembly is arranged on the Y-axis positioning frame (17); A positioning slider (22), the positioning slider (22) being slidably disposed on the limiting slider (21), the positioning slider (22) being connected to the adjacent positioning ball nut group (19); The Y-axis positioning frame (17) is arranged on the positioning slide block (22) in the X-axis positioning assembly; The welding assembly is arranged on the positioning slider (22) in the Y-axis positioning assembly.

8. A battery busbar welding process according to claim 7, characterized in that: The welding assembly comprises: A Z-axis positioning plate (23), wherein the Z-axis positioning plate (23) is arranged on the positioning slider (22) in the Y-axis positioning assembly; A Z-axis positioning cylinder (24), wherein the Z-axis positioning cylinder (24) is mounted on the Z-axis positioning plate (23); A welding plate (25), wherein the welding plate (25) is arranged on the output end of the Z-axis positioning cylinder (24), and the laser welding head group (1) is mounted on the welding plate (25); A welding monitoring camera (26), wherein the welding monitoring camera (26) is mounted on the welding plate (25), and the welding monitoring camera (26) is located on one side of the laser welding head group (1).

9. A battery busbar welding process according to claim 8, characterized in that: The smoke removal and temperature reduction component (004) comprises: a smoke removal pipe (27), the smoke removal pipe (27) being arranged in communication with the welding box (2); a smoke removal fan (28), wherein the smoke removal fan (28) is installed in the smoke removal pipe (27); A cooling pipe (29), wherein the cooling pipe (29) is connected to the welding box (2), and one end of the cooling pipe (29) passes through one side of the weldment carrier (4).

10. A battery busbar welding process according to claim 9, characterized in that: A feeding through hole is provided on one side of the welding box (2), a feeding sealing plate (30) is provided on one side of the weldment carrier (4), the feeding sealing plate (30) is in sealing contact with the feeding through hole, and an observation hole is also provided on one side of the welding box (2), an observation window (31) is installed in the observation hole.

Images