A welding device for new energy battery top cover explosion-proof sheet

Abstract

This invention discloses a welding device for explosion-proof sheets on the top cover of new energy batteries. The device includes a worktable, a controller mounted on the worktable, a support plate fixedly mounted on the worktable, a laser welder for welding the explosion-proof sheet mounted on the side of a load-bearing frame, an annular groove within the worktable, a support ring fixedly mounted within the annular groove, a gear ring fixedly mounted on the outer ring of the support ring, a rotating ring rotatably mounted within the annular groove, a load-bearing plate fixedly mounted on the top of the rotating ring, a drive mechanism for rotating the load-bearing plate within the worktable, and a support shaft rotatably mounted within a limiting hole. This welding device for explosion-proof sheets on the top cover of new energy batteries, by configuring a polishing plate and a support plate, can conveniently clean the welding area of ​​the explosion-proof sheet on the top cover of new energy batteries. The polishing plate is pushed down and adheres to the surface of the battery top cover, and the rotation of the top cover, in conjunction with the polishing plate, completes surface cleaning, thoroughly removing attached debris and ensuring the welding quality of the subsequent explosion-proof sheet.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to a welding device for explosion-proof sheets on the top cover of new energy batteries. Background Technology

[0002] The explosion-proof sheet welding device for new energy battery top covers is a specialized precision equipment in the power battery production process. It is mainly responsible for welding and fixing ultra-thin explosion-proof sheets to the pressure relief area of ​​the battery top cover. The equipment is equipped with a high-precision positioning and stable clamping mechanism, which can effectively prevent the thin explosion-proof sheet from shifting or warping. The mainstream technology in the industry is to use laser welding to complete the annular sealing welding. By strictly controlling the heat input, it ensures that the weld is sealed and leak-proof, and the connection is reliable, while avoiding damage to the pre-made weakened scoring structure of the explosion-proof sheet. This ensures that the explosion-proof sheet can accurately rupture and release pressure in a directional manner when the internal pressure of the battery reaches the set threshold, preventing safety accidents such as bulging, explosion, and fire caused by excessive internal pressure.

[0003] A Chinese patent with publication number CN121083089A discloses a fully automatic welding machine for lithium battery explosion-proof sheets. The top cover feeding device includes a top cover conveying mechanism, a top cover hopper mechanism arranged on one side of the top cover conveying mechanism, a top cover transfer mechanism arranged at one end of the top cover conveying mechanism, and a laser marking mechanism and a defective product transfer mechanism arranged on the other side of the top cover conveying mechanism. A first vision inspection mechanism and a second vision inspection mechanism are also arranged between the top cover conveying mechanism and the top cover hopper mechanism. This invention can realize a series of automated processes such as feeding, assembly, welding, weld inspection and cleaning, shaping, and unloading of battery top covers and explosion-proof sheets, achieving a high degree of automation and high work efficiency.

[0004] The existing welding equipment for explosion-proof sheets on new energy battery top covers has shortcomings in actual production operations. The equipment cannot perform targeted cleaning of the area to be welded on the battery top cover before the welding process begins. During processing, transportation, and assembly line transport, the surface of the battery top cover is very prone to the adhesion of dust, fine metal fragments, particulate impurities, and other foreign objects. If these impurities remain at the welding position of the explosion-proof sheet, they will directly interfere with the welding effect, easily causing quality problems such as weld porosity, incomplete welding, and slag inclusion. This not only reduces the connection strength and sealing performance between the explosion-proof sheet and the top cover, but also affects the pressure relief accuracy of the explosion-proof sheet, posing a safety hazard to battery use. Therefore, the existing equipment has significant limitations in its use.

[0005] Therefore, the present invention provides a welding device for explosion-proof sheet for top cover of new energy battery. Summary of the Invention

[0006] The purpose of this invention is to provide a welding device for explosion-proof sheets on the top cover of new energy batteries, so as to solve the problems mentioned in the background art.

[0007] A welding device for explosion-proof sheet on top cover of new energy battery includes a workbench, a controller on the workbench, a support plate fixedly mounted on the workbench, a protective box fixedly mounted on the side of the support plate, a load-bearing frame on the other side of the support plate, an adjustment mechanism for adjusting the position of the load-bearing frame inside the protective box, and a laser welder for welding the explosion-proof sheet on the side of the load-bearing frame. The workbench is provided with an annular groove, a support ring is fixedly installed in the annular groove, a gear ring is fixedly installed on the outer ring of the support ring, a rotating ring is rotatably installed in the annular groove, a load-bearing plate is fixedly installed on the top of the rotating ring, and a drive mechanism for driving the load-bearing plate to rotate is provided in the workbench. The load-bearing plate is provided with a limiting hole, and a support shaft is rotatably arranged in the limiting hole. A driven gear is fixedly arranged at the bottom end of the support shaft, and the driven gear meshes with a gear ring. A clamping mechanism for fixing the welded workpiece is provided at the top end of the support shaft. A grinding mechanism for grinding and polishing the workpiece is provided on the worktable.

[0008] By adopting the above solution, when welding the new energy battery top cover and the explosion-proof sheet using a welding device for the explosion-proof sheet of the new energy battery top cover, the top cover is fixedly clamped by a clamping mechanism. Then, the drive mechanism moves, which drives the load-bearing plate to rotate. The movement of the load-bearing plate drives the clamping mechanism to move to the next station. The grinding mechanism can clean the new energy battery top cover to be welded, ensuring the quality of subsequent welding. Other clamping mechanisms can also be used to fix and clamp other new energy battery top covers. In this way, the new energy battery top cover can be continuously fed, improving work efficiency. After the new energy battery top cover is cleaned, it moves out of the area where the grinding mechanism is located, and then the new energy battery top cover is cleaned. After the surface of the battery top cover is cleaned, the explosion-proof sheet to be welded is placed on the new energy battery top cover manually or by means of a robotic arm. Then, the support plate moves continuously, causing the new energy battery top cover and the welding sheet to move under the laser welder. The position of the support frame is adjusted by the adjustment mechanism, and the movement of the support frame drives the laser welder to move synchronously. After the laser welder moves to the predetermined position, the new energy battery top cover and the explosion-proof sheet can be welded. The support plate is then driven to move the clamping mechanism to the next station, where the welded new energy battery top cover and the welding sheet are unloaded manually or by means of a robotic arm. After unloading, other new energy battery top covers can be loaded and the explosion-proof sheets welded, improving work efficiency.

[0009] Preferably, the adjustment mechanism includes an adjustment screw, an adjustment plate, a servo motor, and a guide shaft. The adjustment screw is rotatably mounted inside the protective box, the adjustment plate is mounted inside the protective box, and the outer surface of the adjustment screw is threadedly connected to the inside of the adjustment plate. The adjustment plate is fixedly connected to the load-bearing frame. The servo motor is fixed to the bottom of the protective box, and the output end of the servo motor is fixedly connected to the end of the adjustment screw. The guide shaft is fixed inside the support plate and passes through the adjustment plate.

[0010] By adopting the above scheme, the movement of the servo motor will drive the adjustment screw to rotate. When the adjustment screw rotates, it will drive the adjustment plate to move. The guide shaft will guide the adjustment plate to move smoothly. The vertical position of the laser welder can be adjusted by the adjustment plate.

[0011] Preferably, a threaded rod is rotatably provided inside the load-bearing frame, a power motor is fixedly provided on the side of the load-bearing frame, and the output end of the power motor is fixedly connected to one end of the threaded rod. A sliding block is slidably provided inside the load-bearing frame, and the outer surface of the threaded rod is threadedly connected to the sliding block. The side of the sliding block is fixedly connected to the laser welder.

[0012] By adopting the above scheme, the operation of the power motor will drive the threaded rod to rotate. When the threaded rod rotates, it will adjust the position of the sliding block. The position of the laser welder can be adjusted by the sliding block.

[0013] Preferably, the inner ring of the support ring is fixedly provided with an annular frame, and the driving mechanism includes a drive shaft, a power gear, a reducer, and a drive motor. The drive shaft is rotatably disposed inside the worktable and extends into the annular groove. The top end of the drive shaft is fixedly connected to the center position of the load-bearing plate. The power gear is fixed on the drive shaft. The reducer is fixed inside the worktable, and the other end of the drive shaft is fixedly connected to the output end of the reducer. The drive motor is fixed inside the worktable, and the output end of the drive motor is fixedly connected to the input end of the reducer.

[0014] By adopting the above scheme, controlling the drive motor to work will drive the reducer to move. When the reducer moves, it will drive the drive shaft to rotate, which in turn will drive the power gear to rotate. When the drive shaft rotates, it will drive the load-bearing plate to rotate.

[0015] Preferably, a fan casing is fixedly installed inside the annular frame, an impeller is rotatably installed inside the fan casing, and a transmission gear is fixedly connected to the center of the impeller via a shaft, and the transmission gear meshes with the power gear.

[0016] By adopting the above scheme, when the drive shaft rotates, it will drive the power gear to rotate, and when the power gear rotates, it will drive the transmission gear to rotate, which in turn will drive the impeller to rotate. The rotation of the impeller, in turn, will generate wind flow through the fan casing.

[0017] Preferably, the rotating ring is provided with a slot, and a guide ring is rotatably disposed in the slot, with the outer surface of the guide ring being fixedly connected to the inner wall of the annular groove.

[0018] By adopting the above scheme, the rotation of the load-bearing plate will drive the rotating ring to rotate. Through the cooperation of the slot and the guide ring, the rotating ring will be guided, so that the load-bearing plate rotates smoothly.

[0019] Preferably, the clamping mechanism includes a support plate, a placement groove, and a limiting component. The support plate is mounted on a load-bearing plate, and the center of the support plate is fixedly connected to the top of the support shaft. The placement groove is mounted on the support plate, and the limiting component is mounted inside the support plate.

[0020] By adopting the above solution, when fixing and clamping the top cover of the new energy battery, after placing the top cover of the new energy battery inside the placement slot, the top cover of the new energy battery is fixed and clamped by the limiting component, and the top cover of the new energy battery is supported by the support plate.

[0021] Preferably, the limiting component includes a limiting groove, a positioning plate, a rubber plate, a guide block, a shaft, and an electric push rod. The support plate is hollow. The limiting groove is disposed inside the support plate and is connected to the placement groove. The positioning plate is disposed inside the support plate, with one end of the positioning plate passing through the limiting groove. The rubber plate is fixed to one side of the positioning plate. The guide block is disposed inside the support plate and is fixedly connected to the positioning plate. The shaft is fixed inside the support plate and passes through the guide block. An electric push rod is fixedly disposed inside the support plate, and the telescopic end of the electric push rod is fixedly connected to the side of the guide block.

[0022] By adopting the above solution, after the top cover of the new energy battery is placed in the placement slot, the operation of the electric push rod will drive the guide block to move. The shaft will guide the guide block, and the movement of the guide block will drive the positioning plate and rubber plate to move. The movement of the rubber plate, in conjunction with the placement slot, will fix and clamp the position of the top cover of the new energy battery.

[0023] Preferably, a load-bearing shaft is fixedly installed on the workbench, a mounting plate is fixedly installed on the load-bearing shaft, an arc-shaped frame is fixedly installed on the side of the mounting plate, an air duct is embedded in the mounting plate, an air jet hole is arranged in an array on the air duct, and the air duct is connected to the output end of the fan housing through a pipe, and the input end of the fan housing extends out of the workbench through a pipe.

[0024] By adopting the above solution, the arc-shaped frame is supported by the load-bearing shaft and the mounting plate. The rotation of the impeller generates airflow through the fan casing. After the airflow enters the air duct, it can be directed to the surface of the new energy battery cover through the jet holes, which can clean the top cover of the new energy battery.

[0025] Preferably, the grinding mechanism includes an arc-shaped plate and a polishing plate. An electric telescopic rod is fixedly installed on the top of the arc-shaped frame. The arc-shaped plate passes through the arc-shaped frame, and the telescopic end of the electric telescopic rod is fixedly connected to the top of the arc-shaped plate. The arc-shaped plate is located above the load-bearing plate, and the polishing plate is fixed below the arc-shaped plate.

[0026] By adopting the above solution, the position of the arc plate can be adjusted by controlling the electric telescopic rod. When the arc plate moves, it will drive the polishing plate to move. After the polishing plate moves down and contacts the surface of the new energy battery cover, the top of the new energy battery cover can be cleaned when the new energy battery cover moves.

[0027] Compared with the prior art, the beneficial effects of the present invention are: 1. The welding device for explosion-proof sheets of new energy battery top covers, as described in this invention, is equipped with a polishing plate and a support plate. It can conveniently clean the welding area of ​​the explosion-proof sheet of the new energy battery top cover, effectively improving the welding quality. During operation, the clamping mechanism can complete the positioning and clamping of the battery top cover. After starting the drive motor, the drive shaft moves through the reducer. The drive shaft synchronously drives the power gear and the load-bearing plate to rotate, thereby moving the clamping mechanism and the workpiece to the next station. During the rotation of the load-bearing plate, the driven gear and the support shaft can be driven to rotate in sequence by the meshing transmission of the gear ring, which ultimately drives the clamping mechanism and the clamped battery top cover to rotate. At the same time, the position of the arc plate can be adjusted by controlling the electric telescopic rod, thereby pushing the polishing plate down and adhering to the surface of the battery top cover. The rotation of the top cover, together with the polishing plate, completes the surface cleaning, thoroughly removing attached debris and fully ensuring the welding quality of the subsequent explosion-proof sheet.

[0028] 2. The welding device for explosion-proof sheet of new energy battery top cover described in this invention, by providing an impeller and a wind channel, can clean and remove dust from the surface of the new energy battery top cover. During operation, the drive shaft drives the power gear to rotate, and the power gear meshes with the transmission gear to rotate synchronously, thereby driving the impeller to rotate. The impeller and the fan casing cooperate to form a directional airflow. After the airflow is transported through the wind channel, it is sprayed onto the surface of the battery top cover from the jet hole. The airflow is used to clean the surface debris, ensuring the cleanliness of the area to be welded and effectively improving the welding quality.

[0029] 3. The welding device for explosion-proof sheets of new energy battery top covers described in this invention, by relying on a support plate and a load-bearing plate, can quickly complete the feeding process and smoothly carry out the welding process of the battery top cover and the explosion-proof sheet. When the load-bearing plate drives the clamping mechanism to transfer the workpiece to the next station, the welded product can be removed manually or by a robotic arm. After the unloading is completed, new workpieces to be processed can be continuously fed in, and the explosion-proof sheet welding process can be carried out in a cycle. The processes are closely connected, which greatly improves the production rhythm and welding efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the welding device for the explosion-proof sheet of the top cover of a new energy battery according to the present invention; Figure 2 This is a schematic diagram of the workbench and load-bearing plate structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the workbench and annular groove of the present invention; Figure 4 This is a three-dimensional structural diagram of the load-bearing plate and rotating ring of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the arc-shaped frame of the present invention; Figure 6 This is a three-dimensional structural diagram of the protective box of the present invention; Figure 7 This is a three-dimensional structural diagram of the reducer and drive shaft of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the positioning plate of the present invention; Figure 9 This is a three-dimensional structural diagram of the mounting plate and load-bearing shaft of the present invention; Figure 10 This is a schematic diagram of the structure of the ring frame and the fan casing of the present invention.

[0031] In the diagram: 1. Workbench; 2. Controller; 3. Support plate; 4. Protective box; 5. Adjusting screw; 6. Adjusting plate; 7. Servo motor; 8. Guide shaft; 9. Support frame; 10. Threaded rod; 11. Power motor; 12. Sliding block; 13. Laser welder; 14. Annular groove; 15. Support ring; 16. Gear ring; 17. Annular frame; 18. Drive shaft; 19. Power gear; 20. Reducer; 21. Drive motor; 22. Fan casing; 23. Impeller; 24. Transmission... 25. Moving gear; 26. Rotating ring; 27. Slot; 28. Guide ring; 29. ​​Load-bearing plate; 30. Limiting hole; 31. Support shaft; 32. Driven gear; 33. Support plate; 34. Placement slot; 35. Limiting slot; 36. Positioning plate; 37. Rubber plate; 38. Guide block; 39. Shaft; 40. Electric push rod; 41. Load-bearing shaft; 42. Mounting plate; 43. Air duct; 44. Air jet hole; 45. Arc frame; 46. Electric telescopic rod; 47. Arc plate; 48. Polishing plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-10 This invention provides a technical solution: a welding device for explosion-proof sheets on the top cover of new energy batteries, comprising a workbench 1, a controller 2 mounted on the workbench 1, a support plate 3 fixedly mounted on the workbench 1, a protective box 4 fixedly mounted on the side of the support plate 3, a load-bearing frame 9 mounted on the other side of the support plate 3, an adjustment mechanism for adjusting the position of the load-bearing frame 9 mounted inside the protective box 4, a laser welder 13 for welding the explosion-proof sheet mounted on the side of the load-bearing frame 9, an annular groove 14 mounted inside the workbench 1, a support ring 15 fixedly mounted inside the annular groove 14, and a support ring 15 mounted outside the support ring 15. A gear ring 16 is fixedly installed in the ring. A rotating ring 25 is rotatably installed in the annular groove 14. A load-bearing plate 28 is fixedly installed on the top of the rotating ring 25. A drive mechanism for driving the load-bearing plate 28 to rotate is installed in the worktable 1. A limit hole 29 is provided on the load-bearing plate 28. A support shaft 30 is rotatably installed in the limit hole 29. A driven gear 31 is fixedly installed at the bottom of the support shaft 30 and meshes with the gear ring 16. A clamping mechanism for fixing the welded workpiece is provided at the top of the support shaft 30. A grinding mechanism for grinding and polishing the workpiece is provided on the worktable 1. When welding the new energy battery top cover and the explosion-proof sheet using a welding device for the new energy battery top cover, the top cover is fixedly clamped by a clamping mechanism. Then, the drive mechanism moves, driving the load-bearing plate 28 to rotate. The movement of the load-bearing plate 28 drives the clamping mechanism to move to the next station. The grinding mechanism can clean the new energy battery top cover to be welded, ensuring the quality of subsequent welding. Other clamping mechanisms can also be used to fix and clamp other new energy battery top covers, thus continuously feeding new energy battery top covers, improving work efficiency. After cleaning the new energy battery top cover, the new energy battery top cover moves out of the area of ​​the grinding mechanism and the surface of the new energy battery top cover is cleaned. The explosion-proof sheet to be welded is placed on the top cover of the new energy battery by manual labor or by a robotic arm (existing technology). Then, the load-bearing plate 28 moves continuously, causing the top cover of the new energy battery and the welding sheet to move under the laser welder 13. The position of the load-bearing frame 9 is adjusted by the adjustment mechanism. The movement of the load-bearing frame 9 will drive the laser welder 13 to move synchronously. After the laser welder 13 moves to the predetermined position, the top cover of the new energy battery and the explosion-proof sheet can be welded. The load-bearing plate 28 is driven to move and the clamping mechanism is moved to the next station. The welded top cover of the new energy battery and the welding sheet are unloaded by manual labor or by a robotic arm. After unloading, other new energy battery top covers can be loaded and the explosion-proof sheets can be welded, which improves work efficiency. When the load-bearing plate 28 rotates, the driven gear 31 will rotate through the gear ring 16, which will drive the support shaft 30 to rotate. When the support shaft 30 rotates, it will drive the clamping mechanism to rotate, which can drive the fixed clamped new energy battery top cover to rotate. Through the grinding mechanism, the cleaning effect can be further improved, which facilitates the subsequent welding processing of the explosion-proof sheet and effectively improves the welding quality.

[0034] Furthermore, the adjustment mechanism includes an adjustment screw 5, an adjustment plate 6, a servo motor 7, and a guide shaft 8. The adjustment screw 5 is rotatably mounted inside the protective box 4, the adjustment plate 6 is mounted inside the protective box 4, and the outer surface of the adjustment screw 5 is threadedly connected to the inside of the adjustment plate 6. The adjustment plate 6 is fixedly connected to the load-bearing frame 9. The servo motor 7 is fixed at the bottom of the protective box 4, and the output end of the servo motor 7 is fixedly connected to the end of the adjustment screw 5. The guide shaft 8 is fixed inside the support plate 3 and passes through the adjustment plate 6. When the adjustment mechanism moves, the servo motor 7 is controlled to move, which drives the adjustment screw 5 to rotate. When the adjustment screw 5 rotates, it drives the adjustment plate 6 to move. The guide shaft 8 guides the adjustment plate 6 to move smoothly. The laser welder 13 can be adjusted up and down through the adjustment plate 6.

[0035] Furthermore, a threaded rod 10 is rotatably installed inside the load-bearing frame 9, a power motor 11 is fixedly installed on the side of the load-bearing frame 9, and the output end of the power motor 11 is fixedly connected to one end of the threaded rod 10. A sliding block 12 is slidably installed inside the load-bearing frame 9, and the outer surface of the threaded rod 10 is threadedly connected to the sliding block 12. The side of the sliding block 12 is fixedly connected to the laser welder 13. The operation of the power motor 11 will drive the threaded rod 10 to rotate. When the threaded rod 10 rotates, it will adjust the position of the sliding block 12. The position of the laser welder 13 can be adjusted by the sliding block 12.

[0036] Furthermore, an annular frame 17 is fixedly installed on the inner ring of the support ring 15. The drive mechanism includes a drive shaft 18, a power gear 19, a reducer 20, and a drive motor 21. The drive shaft 18 is rotatably installed inside the worktable 1 and extends into the annular groove 14. The top end of the drive shaft 18 is fixedly connected to the center position of the load-bearing plate 28. The power gear 19 is fixed on the drive shaft 18. The reducer 20 is fixed inside the worktable 1, and the other end of the drive shaft 18 is fixedly connected to the output end of the reducer 20. The drive motor 21 is fixed inside the worktable 1, and the output end of the drive motor 21 is fixedly connected to the input end of the reducer 20. The welding device used for the explosion-proof sheet of the top cover of new energy battery can be controlled by the controller 2. Controlling the drive motor 21 to work will drive the reducer 20 to move. When the reducer 20 moves, it will drive the drive shaft 18 to rotate, which in turn will drive the power gear 19 to rotate. When the drive shaft 18 rotates, it will drive the load-bearing plate 28 to rotate.

[0037] Furthermore, a fan casing 22 is fixedly installed inside the ring frame 17, and an impeller 23 is rotatably installed inside the fan casing 22. A transmission gear 24 is fixedly connected to the center of the impeller 23 through a shaft, and the transmission gear 24 meshes with the power gear 19. When the drive shaft 18 rotates, it drives the power gear 19 to rotate. When the power gear 19 rotates, it drives the transmission gear 24 to rotate, which in turn drives the impeller 23 to rotate. The rotation of the impeller 23, in turn, generates airflow through the fan casing 22.

[0038] Furthermore, a slot 26 is provided on the rotating ring 25, and a guide ring 27 is rotatably disposed in the slot 26, and the outer surface of the guide ring 27 is fixedly connected to the inner wall of the annular groove 14. When the load-bearing plate 28 rotates, it will drive the rotating ring 25 to rotate. Through the cooperation of the slot 26 and the guide ring 27, the rotating ring 25 will be guided, so that the load-bearing plate 28 can rotate smoothly.

[0039] Furthermore, the clamping mechanism includes a support plate 32, a placement groove 33, and a limiting component. The support plate 32 is mounted on the load-bearing plate 28, and the center of the support plate 32 is fixedly connected to the top of the support shaft 30. The placement groove 33 is mounted on the support plate 32, and the limiting component is mounted inside the support plate 32. When fixing and clamping the top cover of the new energy battery, after placing the top cover of the new energy battery inside the placement slot 33, the top cover of the new energy battery is fixed and clamped by the limiting component, and the top cover of the new energy battery can be supported by the support plate 32.

[0040] Furthermore, the limiting component includes a limiting groove 34, a positioning plate 35, a rubber plate 36, a guide block 37, a shaft 38, and an electric push rod 39. The support plate 32 is hollow. The limiting groove 34 is set inside the support plate 32 and is connected to the placement groove 33. The positioning plate 35 is set inside the support plate 32, and one end of the positioning plate 35 passes through the limiting groove 34. The rubber plate 36 is fixed to one side of the positioning plate 35. The guide block 37 is set inside the support plate 32 and is fixedly connected to the positioning plate 35. The shaft 38 is fixed inside the support plate 32 and passes through the guide block 37. An electric push rod 39 is fixedly set inside the support plate 32, and the telescopic end of the electric push rod 39 is fixedly connected to the side of the guide block 37. After the new energy battery top cover is placed in the placement slot 33, the operation of the control electric push rod 39 will drive the guide block 37 to move. The guide block 37 will be guided by the shaft 38. The movement of the guide block 37 will drive the positioning plate 35 and the rubber plate 36 to move. The movement of the rubber plate 36, in cooperation with the placement slot 33, will fix and clamp the position of the new energy battery top cover.

[0041] Furthermore, a load-bearing shaft 40 is fixedly installed on the workbench 1, a mounting plate 41 is fixedly installed on the load-bearing shaft 40, an arc-shaped frame 44 is fixedly installed on the side of the mounting plate 41, an air duct 42 is embedded in the mounting plate 41, an air jet hole 43 is arranged in an array on the air duct 42, and the air duct 42 is connected to the output end of the fan housing 22 through a pipe, and the input end of the fan housing 22 extends out of the workbench 1 through a pipe; The arc frame 44 is supported by the load-bearing shaft 40 and the mounting plate 41. The impeller 23 rotates and generates airflow through the fan casing 22. After the airflow enters the air duct 42, it can be directed to the surface of the new energy battery cover through the jet hole 43, which can clean the top cover of the new energy battery.

[0042] Furthermore, the grinding mechanism includes an arc plate 46 and a polishing plate 47. An electric telescopic rod 45 is fixedly installed on the top of the arc frame 44. The arc plate 46 passes through the arc frame 44, and the telescopic end of the electric telescopic rod 45 is fixedly connected to the top of the arc plate 46. The arc plate 46 is located above the load-bearing plate 28, and the polishing plate 47 is fixed below the arc plate 46. The position of the arc plate 46 can be adjusted by controlling the electric telescopic rod 45. When the arc plate 46 moves, it will drive the polishing plate 47 to move. After the polishing plate 47 moves down and contacts the surface of the new energy battery cover, the top of the new energy battery cover can be cleaned when the new energy battery cover moves.

[0043] Working Principle: First, when welding the new energy battery top cover and the explosion-proof sheet using the welding device for the new energy battery top cover, after placing the new energy battery top cover inside the placement groove 33, the operation of the electric push rod 39 will drive the guide block 37 to move. The guide block 37 will be guided by the shaft 38. The movement of the guide block 37 will drive the positioning plate 35 and the rubber plate 36 to move. The movement of the rubber plate 36, in cooperation with the placement groove 33, will fix and clamp the position of the new energy battery top cover. The operation of the drive motor 21 will drive the reducer 20 to move. When the reducer 20 moves, it will drive the drive shaft 18 to rotate, which in turn will drive the power gear 19 to rotate. When the drive shaft 18 rotates, it will drive the load-bearing plate 28 to rotate. When the load-bearing plate 28 moves, it will drive the clamping mechanism to move to the next station. When the load-bearing plate 28 rotates, it will drive the driven gear 31 to rotate through the gear ring 16, which will drive the support shaft 30 to rotate. When the support shaft 30 rotates, it will drive the clamping mechanism to rotate, which can drive the fixedly clamped new energy battery top cover to rotate. The position of the arc-shaped plate 46 can be adjusted by controlling the electric telescopic rod 45. When the arc-shaped plate 46 moves, it will drive the polishing plate 47 to move. After the polishing plate 47 moves down and contacts the surface of the new energy battery cover, the top of the new energy battery cover can be cleaned during the movement of the new energy battery cover to ensure the quality of subsequent welding. When the drive shaft 18 rotates, it will drive the power gear 19 to rotate. The rotation of the power gear 19 will drive the transmission gear 24 to rotate, which in turn will drive the impeller 23 to rotate. The rotation of the impeller 23, in conjunction with the fan casing 22, will generate airflow. After the airflow enters the air duct 42, it can be directed to the surface of the new energy battery cover through the air jet hole 43 to clean the top cover of the new energy battery. After the top cover of the new energy battery is cleaned, it moves out of the area where the grinding mechanism is located. The explosion-proof sheet to be welded is placed on the top cover of the new energy battery manually or by means of a robotic arm. Then, the load-bearing plate 28 continues to move, which will move the top cover of the new energy battery and the welding sheet to a position below the laser welder 13. The servo motor 7 drives the adjusting screw 5 to rotate, which in turn moves the adjusting plate 6. The guide shaft 8 guides the adjusting plate 6, ensuring its smooth movement. The adjusting plate 6 allows for vertical adjustment of the laser welder 13. The power motor 11 drives the threaded rod 10 to rotate, which in turn adjusts the position of the sliding block 12. The sliding block 12 allows for position adjustment of the laser welder 13. Once the laser welder 13 reaches the predetermined position, it can perform welding processing on the new energy battery top cover and the explosion-proof sheet. The load-bearing plate 28 is then driven to move the clamping mechanism to the next station. The welded new energy battery top cover and welding sheet are then unloaded manually or by a robotic arm. After unloading, other new energy battery top covers can be loaded for welding explosion-proof sheets, improving work efficiency, facilitating subsequent welding processing of explosion-proof sheets, and effectively improving welding quality.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A welding device for explosion-proof sheets on the top cover of new energy batteries, characterized in that: Includes a workbench (1), on which a controller (2) is provided, on which a support plate (3) is fixedly provided, on which a protective box (4) is fixedly provided on the side of the support plate (3), on which a load-bearing frame (9) is provided on the other side of the support plate (3), and an adjustment mechanism for adjusting the position of the load-bearing frame (9) is provided inside the protective box (4), and a laser welder (13) for welding explosion-proof sheets is provided on the side of the load-bearing frame (9). The workbench (1) is provided with an annular groove (14), a support ring (15) is fixedly provided in the annular groove (14), a gear ring (16) is fixedly provided on the outer ring of the support ring (15), a rotating ring (25) is rotatably provided in the annular groove (14), a load-bearing plate (28) is fixedly provided on the top of the rotating ring (25), and a drive mechanism for driving the load-bearing plate (28) to rotate is provided in the workbench (1). The load-bearing plate (28) is provided with a limiting hole (29), and a support shaft (30) is rotatably provided in the limiting hole (29). A driven gear (31) is fixedly provided at the bottom end of the support shaft (30), and the driven gear (31) meshes with the gear ring (16). A clamping mechanism for fixing the welded workpiece is provided at the top end of the support shaft (30), and a grinding mechanism for grinding and polishing the workpiece is provided on the worktable (1).

2. The welding device for explosion-proof sheet of new energy battery top cover according to claim 1, characterized in that: The adjustment mechanism includes an adjustment screw (5), an adjustment plate (6), a servo motor (7), and a guide shaft (8). The adjustment screw (5) is rotatably mounted inside the protective box (4). The adjustment plate (6) is mounted inside the protective box (4), and the outer surface of the adjustment screw (5) is threadedly connected to the inside of the adjustment plate (6). The adjustment plate (6) is fixedly connected to the load-bearing frame (9). The servo motor (7) is fixed at the bottom of the protective box (4), and the output end of the servo motor (7) is fixedly connected to the end of the adjustment screw (5). The guide shaft (8) is fixed inside the support plate (3), and the guide shaft (8) passes through the adjustment plate (6).

3. The welding device for explosion-proof sheet of new energy battery top cover according to claim 2, characterized in that: A threaded rod (10) is rotatably installed inside the load-bearing frame (9). A power motor (11) is fixedly installed on the side of the load-bearing frame (9), and the output end of the power motor (11) is fixedly connected to one end of the threaded rod (10). A sliding block (12) is slidably installed inside the load-bearing frame (9), and the outer surface of the threaded rod (10) is threadedly connected to the sliding block (12). The side of the sliding block (12) is fixedly connected to the laser welder (13).

4. The welding device for explosion-proof sheet of new energy battery top cover according to claim 3, characterized in that: The inner ring of the support ring (15) is fixedly provided with an annular frame (17). The driving mechanism includes a drive shaft (18), a power gear (19), a reducer (20), and a drive motor (21). The drive shaft (18) is rotatably disposed inside the workbench (1) and extends into the annular groove (14). The top end of the drive shaft (18) is fixedly connected to the center position of the load-bearing plate (28). The power gear (19) is fixed on the drive shaft (18). The reducer (20) is fixed inside the workbench (1) and the other end of the drive shaft (18) is fixedly connected to the output end of the reducer (20). The drive motor (21) is fixed inside the workbench (1) and the output end of the drive motor (21) is fixedly connected to the input end of the reducer (20).

5. The welding device for explosion-proof sheet of new energy battery top cover according to claim 4, characterized in that: A fan housing (22) is fixedly installed inside the ring frame (17). An impeller (23) is rotatably installed inside the fan housing (22). A transmission gear (24) is fixedly connected to the center of the impeller (23) through a shaft, and the transmission gear (24) meshes with the power gear (19).

6. The welding device for explosion-proof sheet of new energy battery top cover according to claim 1, characterized in that: The rotating ring (25) is provided with a slot (26), and a guide ring (27) is rotatably provided in the slot (26), and the outer surface of the guide ring (27) is fixedly connected to the inner wall of the annular groove (14).

7. The welding device for explosion-proof sheet of new energy battery top cover according to claim 6, characterized in that: The clamping mechanism includes a support plate (32), a placement groove (33), and a limiting component. The support plate (32) is mounted on the load-bearing plate (28), and the center of the support plate (32) is fixedly connected to the top of the support shaft (30). The placement groove (33) is mounted on the support plate (32), and the limiting component is mounted inside the support plate (32).

8. The welding device for explosion-proof sheet of new energy battery top cover according to claim 7, characterized in that: The limiting assembly includes a limiting groove (34), a positioning plate (35), a rubber plate (36), a guide block (37), a shaft (38), and an electric push rod (39). The support plate (32) is hollow. The limiting groove (34) is located inside the support plate (32) and is connected to the placement groove (33). The positioning plate (35) is located inside the support plate (32), and one end of the positioning plate (35) passes through the inside of the limiting groove (34). The rubber plate (36) is fixed on one side of the positioning plate (35), the guide block (37) is set inside the support plate (32), and the guide block (37) is fixedly connected to the positioning plate (35). The shaft (38) is fixed inside the support plate (32), and the shaft (38) passes through the guide block (37). An electric push rod (39) is fixedly installed inside the support plate (32), and the telescopic end of the electric push rod (39) is fixedly connected to the side of the guide block (37).

9. The welding device for explosion-proof sheet of new energy battery top cover according to claim 1, characterized in that: A load-bearing shaft (40) is fixedly installed on the workbench (1). A mounting plate (41) is fixedly installed on the load-bearing shaft (40). An arc-shaped frame (44) is fixedly installed on the side of the mounting plate (41). An air duct (42) is embedded in the mounting plate (41). An air jet hole (43) is arranged in an array on the air duct (42). The air duct (42) is connected to the output end of the fan housing (22) through a pipe. The input end of the fan housing (22) extends out of the workbench (1) through a pipe.

10. A welding device for an explosion-proof sheet for a new energy battery top cover according to claim 9, characterized in that: The grinding mechanism includes an arc plate (46) and a polishing plate (47). An electric telescopic rod (45) is fixedly installed on the top of the arc frame (44). The arc plate (46) is inserted inside the arc frame (44), and the telescopic end of the electric telescopic rod (45) is fixedly connected to the top of the arc plate (46). The arc plate (46) is located above the load-bearing plate (28), and the polishing plate (47) is fixed below the arc plate (46).

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