Tool for laser welding of new energy automobile battery

Abstract

The invention belongs to the technical field of laser welding, and particularly relates to a new energy automobile battery laser welding tool which comprises a base, a controller is fixedly connected to the side wall of the base, a mounting frame is fixedly connected to the rear side wall of the base, the mounting frame is of an inverted-U-shaped structure, and a lifting electric push rod is fixedly connected to the upper side wall of the mounting frame. The moving end of the lifting electric push rod penetrates through the upper side wall of the mounting frame and is fixedly connected with a lifting plate, and the lower side wall of the lifting plate is fixedly connected with a lead screw linear module. Before laser is used for welding the copper bar, substances such as an oxidation film, oil dirt and a plating layer on the surface of the copper bar can be automatically cleaned, the welding quality of the copper bar is guaranteed, meanwhile, the problem that a large amount of splashing is caused by foreign matter is solved, meanwhile, a small amount of splashing attached to the surface of the copper bar can be cleaned, and the welding quality of the copper bar is improved. And the problems that the flatness of the copper bar is damaged by splashing and relatively large potential safety hazards exist are avoided.

Description

Technical Field

[0001] This invention belongs to the field of laser welding technology, and in particular relates to a tooling for laser welding of new energy vehicle batteries. Background Technology

[0002] Copper busbars enable the conduction of electrical energy between battery modules or individual battery cells in new energy vehicles, allowing for series and parallel connections of batteries to form a high-voltage circuit and ensure effective current transmission. They are internal connecting components of the battery pack. In the field of new energy vehicle batteries, multiple copper busbars need to be welded together to achieve busbar connections within the power battery module. Laser welding is employed to achieve deep penetration welding of the copper busbar material, forming a uniform and robust weld to ensure structural reliability during high-current conduction. Welding of copper busbars requires the use of welding fixtures for clamping, such as the new energy vehicle copper busbar welding fixture proposed in patent publication number CN222114046U.

[0003] During the welding of copper busbars, if the surface is not cleaned properly, substances such as oxide film, oil, moisture, or plating on the surface will rapidly decompose or vaporize under the action of laser, generating a large amount of gas that will escape and drive the generation of intense spatter. These spatters will solidify rapidly after impacting the surface of the copper busbar, forming irregular protrusions that damage the flatness of the copper busbar surface and adversely affect subsequent assembly. More seriously, the sharp protrusions formed by spatter may cause air breakdown discharge under high voltage conditions, generating an electric arc that burns the surface of the copper busbar and may even cause a short circuit, posing a significant safety hazard.

[0004] To address these issues, a tooling for laser welding of new energy vehicle batteries is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a tooling for laser welding of new energy vehicle batteries.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tooling for laser welding of new energy vehicle batteries, comprising a base, a controller fixedly connected to the side wall of the base, a mounting frame fixedly connected to the rear side wall of the base, the mounting frame having an inverted U-shaped structure, a lifting electric push rod fixedly connected to the upper side wall of the mounting frame, the moving end of the lifting electric push rod passing through the upper side wall of the mounting frame and fixedly connected to a lifting plate, a lead screw linear module fixedly connected to the lower side wall of the lifting plate, a moving frame fixedly connected to the moving end of the lead screw linear module, the moving frame having an inverted L-shaped structure, a laser welding head fixedly connected to the lower side wall of the moving frame, and further comprising:

[0007] A cleaning component, connected to the upper side wall of the movable frame, is used to clean impurities and splashes adhering to the surface of the copper busbar.

[0008] A purification component is installed on the upper side wall of the lifting plate to purify harmful gases generated during the copper busbar welding process.

[0009] A support assembly, located on the upper side wall of the base, is used to fix the two copper busbars, ensuring stability during welding.

[0010] Preferably, the cleaning assembly includes a dust collection box fixedly connected to the side wall of the movable frame. A dust pump is fixedly connected to the front side wall of the dust collection box, and the air inlet of the dust pump is fixedly connected to the dust collection box. A filter element located at the air inlet of the dust pump is provided inside the dust collection box. A suction pipe is fixedly connected to the rear side wall of the dust collection box. The lower end of the suction pipe passes through the movable frame and is fixedly connected to a scraper. The scraper has a hollow structure, and the lower end of the scraper has a conical structure. Multiple suction ports are opened on the side wall of the scraper, and the multiple suction ports are evenly distributed on both sides of the conical structure. A cleaning electric push rod is fixedly connected to the upper side wall of the movable frame. The moving end of the cleaning electric push rod passes through the movable frame and is fixedly connected to a polishing frame. A polishing motor is fixedly connected to the right side wall of the polishing frame. The output end of the polishing motor passes through the polishing frame and is fixedly connected to a polishing cotton shaft.

[0011] Preferably, the purification assembly includes a purification box fixedly connected to the side wall of the lifting plate. The purification box is equipped with an activated carbon purification mechanism. An air pump is fixedly connected to the front side wall of the purification box. The air inlet of the air pump is connected to the purification box. A horizontal pipe is fixedly connected to the side wall of the purification box. Two vertical pipes are fixedly connected to the lower side wall of the horizontal pipe. Two pressure blocks are fixedly connected to the lower side wall of the lifting plate. The pressure blocks have a hollow structure. An air inlet is opened on the side wall of each of the two pressure blocks on opposite sides. The lower ends of the two vertical pipes pass through the lifting plate and are respectively connected to the two pressure blocks.

[0012] Preferably, the support assembly includes two support blocks fixedly connected to the upper sidewall of the base. The upper sidewalls of the two support blocks are fixedly connected to the same support plate. The support plate has two negative pressure chambers inside. The front sidewalls of both negative pressure chambers are fixedly connected to connecting pipes. Each connecting pipe contains a first control valve. The front ends of both connecting pipes extend out of the negative pressure chambers and are fixedly connected to the same negative pressure pipe. A negative pressure pump is fixedly connected to the front sidewall of the front support block. The air inlet of the negative pressure pump is connected to the negative pressure pipe. The upper sidewall of the support plate has multiple negative pressure chambers... The groove above the pressure chamber has an adsorption cylinder fixedly connected to its lower inner wall by a spring. A rubber ring is fixedly connected to the upper inner wall of the adsorption cylinder. A through hole is opened on the lower inner wall of the adsorption cylinder. A vertical hole is opened between the groove and the negative pressure chamber, and an adjusting valve is installed in the vertical hole. A sealing plate located outside the vertical hole is rotatably connected to the upper inner wall of the negative pressure chamber. The sealing plate and the negative pressure chamber are connected by a spring. Multiple trigger switches are fixedly connected to the upper inner wall of the negative pressure chamber. All multiple trigger switches are electrically connected to the controller. An arc-shaped pressure rod is fixedly connected to the lower inner wall of the sealing plate.

[0013] Preferably, a conductive block is fixedly connected to the lower side wall of the adsorption cylinder, the conductive block is electrically connected to an external power source through a conductive slide plate assembly, and a conductive plate is fixedly connected to the lower side wall of the groove, the conductive plate is electrically connected to the controller.

[0014] Preferably, two wires are fixedly connected to the upper side wall of the base, and alligator clips are fixedly connected to the upper ends of the two wires. The wires and alligator clips are electrically connected. The wire on the right side is electrically connected to an external power source, and the wire on the left side is electrically connected to an external ammeter. An infrared probe is fixedly connected to the lower side wall of the movable frame.

[0015] Preferably, the support plate has an air-cooled cavity located between two negative pressure cavities, the negative pressure pipe and the air-cooled cavity are fixedly connected by the same air-cooled pipe, the air-cooled pipe is provided with a second control valve, and the rear side wall of the air-cooled cavity has an air inlet.

[0016] Preferably, a dustproof net located outside the air inlet is fixedly connected to the rear side wall of the support plate, and the dustproof net is made of aluminum alloy.

[0017] Compared with existing technologies, the advantages of a new energy vehicle battery laser welding tooling are:

[0018] 1. The cleaning components can automatically clean the oxide film, oil, plating and other substances on the surface of the copper busbar before welding with laser. This ensures the welding quality of the copper busbar and reduces the problem of a large amount of spatter caused by foreign objects. At the same time, it can also clean the small amount of spatter attached to the surface of the copper busbar, avoiding the problem of spatter damaging the flatness of the copper busbar and posing a great safety hazard.

[0019] 2. Through the set purification components, while using laser to weld copper busbars, the system can automatically purify the emitted harmful gases, thereby preventing harmful gases from escaping into the surrounding environment and affecting the health of operators.

[0020] 3. The support components can be used to fix the position of the copper busbar before welding, so that the weld seam is in the set position and the width of the weld seam can be detected, which improves the efficiency of subsequent laser welding.

[0021] 4. By using the set wires, alligator clips, and infrared probes, the conductivity of the copper busbars can be tested after the two copper busbars are welded. When a decrease in the conductivity of the welded copper busbars is detected, the temperature abnormality area at the weld can be detected, which makes it convenient for operators to find areas with problems such as porosity at the weld and repair them in time. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a tooling for laser welding of new energy vehicle batteries provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the cleaning component in a tooling for laser welding of new energy vehicle batteries provided by the present invention;

[0024] Figure 3 This is a schematic diagram of the purification component in a tooling for laser welding of new energy vehicle batteries provided by the present invention;

[0025] Figure 4 This is a schematic diagram showing the positional relationship between the pressure block and the air inlet in a tooling for laser welding of new energy vehicle batteries provided by the present invention;

[0026] Figure 5 This is a top cross-sectional view of the support plate in a tooling for laser welding of new energy vehicle batteries provided by the present invention;

[0027] Figure 6 This is a right-side cross-sectional view of the support plate in a tooling for laser welding of new energy vehicle batteries provided by the present invention.

[0028] In the diagram: 1. Base, 2. Controller, 3. Mounting bracket, 4. Lifting electric push rod, 5. Lifting plate, 6. Lead screw linear module, 7. Moving frame, 8. Laser welding head, 9. Cleaning assembly, 91. Dust collection box, 92. Dust collection pump, 10. Dust collection pipe, 11. Scraper, 12. Dust collection port, 13. Cleaning electric push rod, 14. Grinding frame, 15. Grinding motor, 16. Grinding cotton shaft, 17. Purification assembly, 171. Purification box, 172. Air pump, 18. Horizontal pipe, 19. Vertical pipe, 20. Pressure block, 21. Air inlet, 22. Support assembly 221 Support block, 222 Support plate, 23 Negative pressure chamber, 24 Connecting pipe, 25 First control valve, 26 Negative pressure pipe, 27 Negative pressure pump, 28 Groove, 29 Adsorption cylinder, 30 Rubber ring, 31 Through hole, 32 Vertical hole, 33 Adjusting valve, 34 Sealing plate, 35 Trigger switch, 36 Arc-shaped pressure rod, 37 Conductive block, 38 Conductive plate, 39 Wire, 40 Alligator clip, 41 Infrared probe, 42 Air-cooled chamber, 43 Air-cooled pipe, 44 Second control valve, 45 Air inlet, 46 Dustproof net. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] like Figures 1-6 As shown, a tooling for laser welding of new energy vehicle batteries includes a base 1, a controller 2 fixedly connected to the side wall of the base 1, and a mounting frame 3 fixedly connected to the rear side wall of the base 1. The mounting frame 3 has an inverted U-shaped structure. A lifting electric push rod 4 is fixedly connected to the upper side wall of the mounting frame 3. The moving end of the lifting electric push rod 4 passes through the upper side wall of the mounting frame 3 and is fixedly connected to a lifting plate 5. A lead screw linear module 6 is fixedly connected to the lower side wall of the lifting plate 5. A moving frame 7 has an inverted L-shaped structure and a laser welding head 8 is fixedly connected to the lower side wall of the moving frame 7. The tooling also includes:

[0031] Cleaning component 9, connected to the upper side wall of the movable frame 7, is used to clean impurities on the surface of the copper busbar, as well as splashes adhering to the surface of the copper busbar.

[0032] Purification component 17 is installed on the upper side wall of lifting plate 5 and is used to purify harmful gases generated during copper busbar welding.

[0033] The support component 22 is set on the upper side wall of the base 1 and is used to fix the two copper busbars, ensuring the stability of the two copper busbars during welding.

[0034] The cleaning assembly 9 includes a dust collection box 91 fixedly connected to the upper side wall of the movable frame 7. A dust pump 92 is fixedly connected to the front side wall of the dust collection box 91, and the air inlet of the dust pump 92 is fixedly connected to the dust collection box 91. The dust collection box 91 contains a filter located at the air inlet of the dust pump 92. A suction pipe 10 is fixedly connected to the rear side wall of the dust collection box 91. The lower end of the suction pipe 10 passes through the movable frame 7 and is fixedly connected to a scraper 11. The scraper 11 has a hollow structure, and the lower end of the scraper 11 is conical. The scraper 11 has multiple suction ports 12 on its side wall, which are evenly distributed on both sides of the conical structure. The upper side wall of the movable frame 7 is fixedly connected to a cleaning electric push rod 13. The moving end of the cleaning electric push rod 13 passes through the movable frame 7 and is fixedly connected to a grinding frame 14. The right side wall of the grinding frame 14 is fixedly connected to a grinding motor 15. The output end of the grinding motor 15 passes through the grinding frame 14 and is fixedly connected to a grinding cotton shaft 16, which can perform grinding treatment on the copper busbar weld seam.

[0035] The purification assembly 17 includes a purification box 171 fixedly connected to the upper side wall of the lifting plate 5. The purification box 171 is equipped with an activated carbon purification mechanism. An air pump 172 is fixedly connected to the front side wall of the purification box 171. The air inlet of the air pump 172 is connected to the purification box 171. A horizontal pipe 18 is fixedly connected to the side wall of the purification box 171. Two vertical pipes 19 are fixedly connected to the lower side wall of the horizontal pipe 18. Two pressure blocks 20 are fixedly connected to the lower side wall of the lifting plate 5. The pressure blocks 20 have a hollow structure. An air inlet 21 is opened on the side wall of the two pressure blocks 20 on opposite sides. The lower ends of the two vertical pipes 19 pass through the lifting plate 5 and are respectively connected to the two pressure blocks 20, which can treat the harmful gases generated during the welding process.

[0036] The support assembly 22 includes two support blocks 221 fixedly connected to the upper side wall of the base 1. The upper side walls of the two support blocks 221 are fixedly connected to the same support plate 222. The support plate 222 has two negative pressure chambers 23 inside. The front side walls of both negative pressure chambers 23 are fixedly connected to connecting pipes 24. Each connecting pipe 24 contains a first control valve 25. The front ends of both connecting pipes 24 extend out of the negative pressure chambers 23 and are fixedly connected to the same negative pressure pipe 26. A negative pressure pump 27 is fixedly connected to the front side wall of the front support block 221. The air inlet of the negative pressure pump 27 is connected to the negative pressure pipe 26. The upper side wall of the support plate 222 has multiple grooves 28 located above the negative pressure chambers 23. The lower inner wall of the grooves 28 is fixedly connected to an adsorption cylinder 29 via a spring. The lower wall of the adsorption cylinder 29 is fixedly connected to... A conductive block 37 is electrically connected to an external power source via a conductive sliding plate assembly. A conductive plate 38 is fixedly connected to the lower side wall of the groove 28 and is electrically connected to the controller 2. A rubber ring 30 is fixedly connected to the upper side wall of the adsorption cylinder 29. A through hole 31 is opened on the lower side wall of the adsorption cylinder 29. A vertical hole 32 is opened between the groove 28 and the negative pressure chamber 23, and an adjusting valve 33 is provided in the vertical hole 32. A sealing plate 34 located outside the vertical hole 32 is rotatably connected to the upper inner wall of the negative pressure chamber 23. The sealing plate 34 and the negative pressure chamber 23 are connected by a spring. Multiple trigger switches 35 are fixedly connected to the upper inner wall of the negative pressure chamber 23. All multiple trigger switches 35 are electrically connected to the controller 2. An arc-shaped pressure rod 36 is fixedly connected to the lower side wall of the sealing plate 34, which can adsorb and fix the copper busbar.

[0037] Two wires 39 are fixedly connected to the upper side wall of the base 1. Alligator clips 40 are fixedly connected to the upper ends of the two wires 39. The wires 39 and alligator clips 40 are electrically connected. The wire 39 on the right side is electrically connected to an external power supply, and the wire 39 on the left side is electrically connected to an external ammeter. An infrared probe 41 is fixedly connected to the lower side wall of the movable frame 7. After the two copper busbars are welded, the conductivity of the copper busbars can be tested. When the conductivity of the welded copper busbars is detected to be reduced, the temperature abnormality area at the weld can be detected, which makes it convenient for operators to find areas with porosity or other problems at the weld and repair them in time.

[0038] The support plate 222 has an air-cooled cavity 42 located between two negative pressure cavities 23. The negative pressure pipe 26 and the air-cooled cavity 42 are fixedly connected by the same air-cooled pipe 43. The air-cooled pipe 43 is equipped with a second control valve 44. The rear side wall of the air-cooled cavity 42 has an air inlet 45. The rear side wall of the support plate 222 is fixedly connected to a dustproof net 46 located outside the air inlet 45. The dustproof net 46 is made of aluminum alloy and can reduce the temperature of the support plate 222.

[0039] The operating principle of this invention is explained as follows: Two copper busbars to be welded are placed on the surface of the support plate 222, such that the weld seam of the copper busbars is located on the guide line (guide line) on the surface of the support plate 222. Figure 1 (As shown in the diagram), then another operator sends an electrical signal to controller 2 via an external switch. Upon receiving the signal, controller 2 controls the negative pressure pump 27 to operate and simultaneously opens the two first control valves 25 and multiple regulating valves 33. The negative pressure pump 27 extracts the gas from the negative pressure chamber 23 through the negative pressure pipe 26 and connecting pipe 24, putting the negative pressure chamber 23 into a negative pressure state. The gas inside the groove 28 and adsorption cylinder 29 is extracted through the through hole 31 and vertical hole 32. When the copper busbar is in adsorption... After the adsorption cylinder 29 is completely covered by the top of the cylinder 29, under the action of negative pressure, the adsorption cylinder 29 will adsorb the copper busbar, preventing external gas from entering the negative pressure chamber 23 through the through hole 31 and the vertical hole 32. The adsorption cylinder 29 will also cause the copper busbar to move downwards, making it contact the upper side wall of the support plate 222. However, for the adsorption cylinder 29 not completely covered by the copper busbar, external gas will continuously enter the negative pressure chamber 23 through the through hole 31 and the vertical hole 32. After passing through the vertical hole 32, the gas will blow downwards onto the sealing plate 34 (see reference). Figure 6 (Since the sealing plate 34 does not completely cover the vertical hole 32, gas can subsequently re-enter the groove 28 through the vertical hole 32). The sealing plate 34 will drive the arc-shaped pressure rod 36 to rotate along the hinge. The arc-shaped pressure rod 36 will press against the trigger switch 35. After the negative pressure pump 27 has been working for five seconds, the controller 2 will detect that a trigger switch 35 is still being pressed by the arc-shaped pressure rod 36. The controller 2 will then control the corresponding regulating valve 33 to close, thereby keeping the negative pressure chamber 23 in a sealed state. The controller 2 will check the negative pressure value inside the negative pressure chamber 23 through the air pressure sensor (not shown in the figure) inside the negative pressure chamber 23 to see if it has reached the set value. After a certain threshold (0.5 standard atmospheres) is reached, the controller 2 will control the two first control valves 25 to close, fix the copper busbar, and control the second control valve 44 to open, so that the airflow is extracted through the air-cooling chamber 42. The air cooling can reduce the heat conducted by the support plate 222 during subsequent welding. After the copper busbar welding is completed, the operator controls all the regulating valves 33 to open through the external control switch. The external gas will enter the negative pressure chamber 23 through the through hole 31 on the lower side of the idle adsorption cylinder 29 and the vertical hole 32 below, releasing the negative pressure state of the negative pressure chamber 23, making it convenient for the operator to take out the welded copper busbar.

[0040] After the copper busbar is fixed, the operator sends an electrical signal to the controller 2 via an external switch. Upon receiving the signal, the controller 2 controls the lifting electric push rod 4 to operate. The lifting electric push rod 4, via a pressure sensor (not shown in the figure), moves the lifting plate 5 downward. The lifting plate 5 then moves the pressure block 20 downward, using the pressure block 20 to press the copper busbar, further fixing it. When the controller 2 detects an increase in the data transmitted by the pressure sensor (the pressure sensor is located between the lifting electric push rod 4 and the lifting plate 5, and the pressure fluctuation exceeds 10N), the controller 2 stops the lifting electric push rod 4 and controls the lead screw linear module 6, the cleaning electric push rod 13, and the polishing motor 15 to operate. The cleaning electric push rod 13 moves the polishing cotton shaft 16 downward to a set position, contacting the surface of the copper busbar. The polishing motor 15 rotates the polishing cotton shaft 16, and then the lead screw linear module 6 moves the polishing cotton shaft 16 across the surface of the copper busbar, polishing the surface. After the copper busbar is fixed, the copper busbar moves the adsorption cylinder 29 downward. During the process, the adsorption cylinder 29 will cause the conductive block 37 and the conductive plate 38 to come into contact. The controller 2 can determine the length of the weld by detecting the range of the conductive plate 38 that transmits electrical signals (the controller 2 can determine the width and placement position of the copper busbar by detecting the positions of the leftmost and rightmost energized conductive plates 38). The controller 2 can then control the moving distance of the lead screw linear module 6. While the lead screw linear module 6 is driving the polishing cotton shaft 16 to polish the copper busbar, the controller 2 will also control the dust pump 92 to work. 2. The gas inside the dust collection box 91 is extracted, and the external gas will carry the grinding dust into the dust collection box 91 for storage. After the copper busbar is polished, the controller 2 will control the cleaning electric push rod 13 to drive the polishing cotton shaft 16 to move upward to the initial position, and control the lead screw linear module 6 to work in reverse, and control the laser welding head 8 to work. The lead screw linear module 6 will drive the laser welding head 8 to move and weld the weld seam of the copper busbar. A small amount of spatter generated during the welding process will be scraped off by the scraper 11 and will enter the dust collection box 91 for storage through the dust collection port 12.

[0041] Furthermore, during the welding process, the controller 2 will also control the air pump 172 to work. The air pump 172 will extract the gas inside the purification box 171, and the external gas will carry the harmful gas generated during the welding process into the purification box 171 through the air inlet 21, the pressure block 20, the vertical pipe 19 and the horizontal pipe 18. The harmful gas will be filtered by the activated carbon purification mechanism inside the purification box 171.

[0042] After the copper busbar welding is completed, the operator clamps two alligator clips 40 on both sides of the welded copper busbar. Then, the controller 2 controls the right-side wire 39 to connect to the external power supply, and the external current will be transmitted to the external ammeter through the copper busbar. When the controller 2 detects an increase in the resistance of the copper busbar through the external ammeter (the pores in the weld seam disrupt the continuity of the conductive path and the effective cross-sectional area, resulting in a decrease in the effective cross-sectional area for current flow, an increase in resistance, and the generation of more Joule heat when the current flows, resulting in a smaller current delivered to the ammeter), the controller 2 will control the linear screw module 6 and the infrared probe 41 to work. The infrared probe 41 is used to detect abnormal temperature areas in the weld seam, and the detection results are sent to the external display screen through the wireless communication module inside the controller 2, which facilitates subsequent repair of the weld seam by the operator.

[0043] The above description is only a preferred embodiment of the present invention and is 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 within the protection scope of the present invention.

Claims

1. A tooling for laser welding of new energy vehicle batteries, comprising a base (1), wherein a controller (2) is fixedly connected to the side wall of the base (1), and a mounting frame (3) is fixedly connected to the rear side wall of the base (1). The mounting frame (3) has an inverted U-shaped structure. A lifting electric push rod (4) is fixedly connected to the upper side wall of the mounting frame (3). The moving end of the lifting electric push rod (4) passes through the upper side wall of the mounting frame (3) and is fixedly connected to a lifting plate (5). A lead screw linear module (6) is fixedly connected to the lower side wall of the lifting plate (5). A moving frame (7) is fixedly connected to the moving end of the lead screw linear module (6). The moving frame (7) has an inverted L-shaped structure. A laser welding head (8) is fixedly connected to the lower side wall of the moving frame (7). Also includes: The cleaning component (9) is connected to the upper side wall of the movable frame (7) and is used to clean impurities on the surface of the copper busbar and splashes adhering to the surface of the copper busbar. Purification component (17) is installed on the upper side wall of the lifting plate (5) for purifying harmful gases generated during the copper busbar welding process; The support component (22) is set on the upper side wall of the base (1) for fixing the two copper busbars and ensuring the stability of the two copper busbars during welding.

2. The tooling for laser welding of new energy vehicle batteries according to claim 1, characterized in that, The cleaning assembly (9) includes a dust collection box (91) fixedly connected to the upper side wall of the movable frame (7). A dust pump (92) is fixedly connected to the front side wall of the dust collection box (91). The air inlet of the dust pump (92) is fixedly connected to the dust collection box (91). A filter element located at the air inlet of the dust pump (92) is provided inside the dust collection box (91). A dust suction pipe (10) is fixedly connected to the rear side wall of the dust collection box (91). The lower end of the dust suction pipe (10) passes through the movable frame (7) and is fixedly connected to a scraper (11). The scraper (11) has a hollow structure. The lower end of the plate (11) is a conical structure. The side wall of the scraper (11) is provided with multiple dust suction ports (12). The multiple dust suction ports (12) are evenly distributed on both sides of the conical structure. The upper side wall of the movable frame (7) is fixedly connected to a cleaning electric push rod (13). The moving end of the cleaning electric push rod (13) passes through the movable frame (7) and is fixedly connected to a grinding frame (14). The right side wall of the grinding frame (14) is fixedly connected to a grinding motor (15). The output end of the grinding motor (15) passes through the grinding frame (14) and is fixedly connected to a grinding cotton shaft (16).

3. The tooling for laser welding of new energy vehicle batteries according to claim 1, characterized in that, The purification component (17) includes a purification box (171) fixedly connected to the upper side wall of the lifting plate (5). The purification box (171) is equipped with an activated carbon purification mechanism. An air pump (172) is fixedly connected to the front side wall of the purification box (171). The air inlet of the air pump (172) is connected to the purification box (171). A horizontal pipe (18) is fixedly connected to the side wall of the purification box (171). Two vertical pipes (19) are fixedly connected to the lower side wall of the horizontal pipe (18). Two pressure blocks (20) are fixedly connected to the lower side wall of the lifting plate (5). The pressure blocks (20) are hollow structures. An air inlet (21) is opened on the side wall of the two pressure blocks (20) on opposite sides. The lower ends of the two vertical pipes (19) pass through the lifting plate (5) and are connected to the two pressure blocks (20) respectively.

4. The tooling for laser welding of new energy vehicle batteries according to claim 1, characterized in that, The support assembly (22) includes two support blocks (221) fixedly connected to the upper side wall of the base (1). The upper side walls of the two support blocks (221) are fixedly connected to the same support plate (222). The support plate (222) has two negative pressure chambers (23) inside. The front side walls of the two negative pressure chambers (23) are fixedly connected to connecting pipes (24). The two connecting pipes (24) are each equipped with a first control valve (25). The front ends of the two connecting pipes (24) extend out of the negative pressure chambers (23) and are fixedly connected to the same negative pressure pipe (26). The front side wall of the front support block (221) is fixedly connected to a negative pressure pump (27). The air inlet of the negative pressure pump (27) is connected to the negative pressure pipe (26). The upper side wall of the support plate (222) has multiple valves located above the negative pressure chambers (23). The groove (28) has an adsorption cylinder (29) fixedly connected to its lower inner wall by a spring. The adsorption cylinder (29) has a rubber ring (30) fixedly connected to its upper wall. The adsorption cylinder (29) has a through hole (31) on its lower wall. The groove (28) and the negative pressure chamber (23) have the same vertical hole (32) and a regulating valve (33) is provided in the vertical hole (32). The upper inner wall of the negative pressure chamber (23) is rotatably connected to a sealing plate (34) located outside the vertical hole (32). The sealing plate (34) and the negative pressure chamber (23) are connected by a spring. The upper inner wall of the negative pressure chamber (23) is fixedly connected to multiple trigger switches (35). The multiple trigger switches (35) are all electrically connected to the controller (2). The lower wall of the sealing plate (34) is fixedly connected to an arc-shaped pressure rod (36).

5. The tooling for laser welding of new energy vehicle batteries according to claim 4, characterized in that, The lower sidewall of the adsorption tube (29) is fixedly connected to a conductive block (37), which is electrically connected to an external power source through a conductive slide plate assembly. The lower sidewall of the groove (28) is fixedly connected to a conductive plate (38), which is electrically connected to the controller (2).

6. The tooling for laser welding of new energy vehicle batteries according to claim 1, characterized in that, Two wires (39) are fixedly connected to the upper side wall of the base (1). Alligator clips (40) are fixedly connected to the upper ends of the two wires (39). The wires (39) and alligator clips (40) are electrically connected. The wire (39) on the right side is electrically connected to an external power source, and the wire (39) on the left side is electrically connected to an external ammeter. An infrared probe (41) is fixedly connected to the lower side wall of the movable frame (7).

7. The tooling for laser welding of new energy vehicle batteries according to claim 5, characterized in that, The support plate (222) has an air-cooled cavity (42) located between two negative pressure cavities (23). The negative pressure pipe (26) and the air-cooled cavity (42) are fixedly connected by the same air-cooled pipe (43). The air-cooled pipe (43) is equipped with a second control valve (44). The rear side wall of the air-cooled cavity (42) is provided with an air inlet (45).

8. The tooling for laser welding of new energy vehicle batteries according to claim 7, characterized in that, The rear side wall of the support plate (222) is fixedly connected to a dustproof net (46) located outside the air inlet (45), and the dustproof net (46) is made of aluminum alloy.

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