A welding device for the metal shell of a battery

Abstract

The present invention relates to the technical field of battery metal shell welding, and specifically relates to a welding device for a battery metal shell, which includes a base, and also includes a vertical plate, a positioning mechanism, a rotating mechanism, a welding mechanism, a blowing mechanism and two fixing seats. The rotating mechanism includes a driving component, two rotating cylinders, two annular plates and a plurality of connecting rods. The positioning mechanism includes an electric suction cup, a pushing component, a rotating component, two telescopic components and eight pressing plates. The welding mechanism includes a welding head and a moving component. The blowing mechanism includes a transmission component, a conveying component, two nozzles, two mounting blocks, two second strip-shaped grooves and two sliding components. The use of eight pressing plates can fix the battery bottom shell, and the use of the electric suction cup can fix the upper cover. At the same time, with the cooperation of the pushing component, the bottom shell and the upper cover can be combined together without manual fixation. This device can ensure stable placement between the bottom shell and the upper cover, which is beneficial to improving the welding precision.

Description

Technical Field

[0001] The present invention relates to the technical field of battery metal shell welding, and specifically to a welding device for battery metal shells. Background Art

[0002] ‌The main functions of the battery shell include protecting internal components, preventing electrolyte leakage, providing structural support, etc. It not only protects the battery module from the external environment, such as external force impact, heat and water seepage, but also ensures that the battery module is not damaged in case of an accident.

[0003] The battery metal shell generally includes a bottom shell and an upper cover. After the battery module is fixed, the bottom shell and the upper cover need to be welded. The existing battery metal shells generally have the following deficiencies during welding;

[0004] 1. When welding the square battery bottom shell and the upper cover, it is generally necessary for workers to fix the bottom shell and the upper cover during the welding process. Manual positioning is time-consuming and laborious, and errors are likely to occur, resulting in low welding precision of the bottom shell and the upper cover;

[0005] 2. During the welding process, the position to be welded cannot be cleaned. If impurities or dust accumulate at the welding joint of the bottom shell and the upper cover, it will affect the welding quality and effect, affect the subsequent use of the battery shell, and the welded part cannot be cooled in time, which is not conducive to reducing thermal stress and deformation, and thus not conducive to enhancing the overall stability and durability of the welding structure.

[0006] In view of the above problems, a welding device for battery metal shells is now provided. Summary of the Invention

[0007] The purpose of the present invention is to provide a welding device for battery metal shells to solve the problems raised in the above background art.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A welding device for battery metal shells includes a base, and also includes a vertical plate, a positioning mechanism, a rotating mechanism, a welding mechanism, a blowing mechanism and two fixing seats. The two fixing seats are both fixedly installed at the top of the base, and the vertical plate is located on one side of one of the fixing seats and fixed to the top of the base;

[0010] The rotating mechanism includes a driving component, two rotating cylinders, two annular plates and a plurality of connecting rods. Each rotating cylinder is rotatably arranged in the middle of the fixing seat. The two annular plates are respectively fixedly installed on the sides of the two rotating cylinders close to each other. The plurality of connecting rods are equidistantly fixed between the two annular plates. The driving component is installed between the base and one of the rotating cylinders;

[0011] The positioning mechanism includes an electric suction cup, a pushing component, a rotating component, two telescopic components, and eight tightening plates. Every four tightening plates are arranged equidistantly in a ring at the middle of a rotating cylinder. Each telescopic component is located between the annular plate and the four tightening plates. The rotating component is located between the two annular plates and the two telescopic components. The electric suction cup is located on one side of the vertical plate close to the fixed seat. The pushing component is located between the vertical plate and the electric suction cup.

[0012] The welding mechanism includes a welding head and a moving component. The welding head is located at the top of the vertical plate and on one side close to the fixed seat. The moving component is installed

[0013] between the vertical plate and the welding head.

[0014] The air blowing mechanism includes a transmission component, a conveying component, two spray nozzles, two mounting blocks, two second strip-shaped grooves, and two sliding components. The two second strip-shaped grooves are symmetrically opened on both sides of the vertical plate. Each mounting block is slidably arranged inside a second strip-shaped groove. Each spray nozzle is installed on one side of a mounting block close to the fixed seat. The output end of the conveying component is connected to the input ends of the two spray nozzles. Each sliding component is located between the vertical plate and a mounting block. The transmission component is located between a rotating cylinder and the two sliding components.

[0015] As a further solution of the present invention: The rotating component includes a U-shaped frame, a first cylinder, a push plate, and two racks. The U-shaped frame is fixedly installed at the top of the two annular plates. The two racks are symmetrically slidably arranged on both sides of the U-shaped frame. The push plate is fixedly installed between one ends of the two racks. The first cylinder is fixedly installed on the surface of the U-shaped frame. The output end of the first cylinder is fixedly connected to the surface of the push plate.

[0016] As a further solution of the present invention: Each telescopic component includes a rotating ring, a first toothed ring, four arc-shaped grooves, four first insertion rods, four sliding grooves, and four L-shaped moving plates;

[0017] The rotating ring is rotatably arranged on the side of the annular plate away from the rotating cylinder. The four arc-shaped grooves are equidistantly opened on the surface of the rotating ring. The first toothed ring is fixedly installed on the outside of the rotating ring. The first toothed ring and the rack are meshed with each other. The four sliding grooves are equidistantly opened on the surface of the annular plate. One end of each L-shaped moving plate is slidably arranged inside a sliding groove. The other end of each L-shaped moving plate passes through the rotating cylinder and is fixedly connected to a tightening plate. Each first insertion rod is fixed on one side of an L-shaped moving plate away from the tightening plate. The other end of each first insertion rod is inserted into an arc-shaped groove.

[0018] As a further solution of the present invention: The pushing component includes a third cylinder and a mounting plate. The mounting plate is fixedly installed on the side of the vertical plate away from the fixed seat. The third cylinder is fixedly installed above the mounting plate. The output end of the third cylinder passes through the vertical plate and is rotatably connected to the electric suction cup through a bearing.

[0019] As a further solution of the present invention: The driving component includes a first sprocket, a second sprocket, a chain, a motor and a motor base. The first sprocket is fixedly sleeved on the surface of the rotating cylinder on the side away from the vertical plate. The motor base is fixedly installed at the top of the base. The second sprocket is rotatably arranged on one side of the motor base. The chain is sleeved on the second sprocket and the first sprocket. The motor is fixedly installed on the side of the motor base away from the second sprocket, and the output end of the motor is fixedly connected to the second sprocket.

[0020] As a further solution of the present invention: The transmission component includes a second gear ring, a gear, a rotating shaft, two driving wheels, two driven wheels, two transmission belts and two mounting seats;

[0021] The two mounting seats are symmetrically fixed on the side of the vertical plate away from the fixed seat. The two driven wheels are respectively rotatably arranged on the two mounting seats. The rotating shaft is rotatably arranged on the vertical plate. The two driving wheels are coaxial and both fixed at one end of the rotating shaft. Each transmission belt is sleeved on one driven wheel and one driving wheel. The gear is fixedly installed at the end of the rotating shaft away from the transmission belt. The second gear ring is fixedly sleeved on one rotating cylinder on the side close to the vertical plate, and the second gear ring and the gear are meshed with each other.

[0022] As a further solution of the present invention: Each sliding component includes a rotating rod, a sliding sleeve, a swing rod, a swing shaft, a first strip-shaped groove and a second insertion rod;

[0023] One end of the swing rod is rotatably arranged on one side of the vertical plate. The first strip-shaped groove is opened at the other end of the swing rod. The second insertion rod is inserted into the first strip-shaped groove and one end of the second insertion rod is fixedly connected to the mounting block. The swing shaft is fixedly installed at the end of the swing rod away from the first strip-shaped groove. The sliding sleeve is slidably sleeved on the swing shaft through a sliding bearing. The rotating rod is located on the side of the mounting seat away from the driven wheel, and one end of the rotating rod is coaxial and fixedly connected to the driven wheel, and the other end of the rotating rod is hinged to the surface of the sliding sleeve.

[0024] As a further solution of the present invention: The conveying component includes a blower, a main pipe, two shunt pipes and two hoses. The blower is fixedly installed at the top of the base. The output end of the blower is connected to one end of the main pipe. The other end of the main pipe is connected to one end of the two shunt pipes. The other end of each shunt pipe passes through the vertical plate and is connected to one end of the hose. The other end of the hose is connected to the nozzle.

[0025] As a further solution of the present invention: The moving component includes a second cylinder, an electric slide table and a moving block. The electric slide table is vertically slidably arranged on the vertical plate. A moving block is slidably arranged on the electric slide table. The welding head is fixedly installed on one side of the moving block. The second cylinder is fixedly installed on one side of the vertical plate, and the output end of the second cylinder is fixedly connected to the electric slide table.

[0026] As a further solution of the present invention: The diameter of the gear is smaller than the diameter of the second gear ring, and the diameter of the driven wheel is smaller than the diameter of the driving wheel.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. For a welding device for the metal shell of a battery according to the present invention, by setting a positioning mechanism, the bottom shell of the battery can be fixed by using eight pressing plates, and the upper cover can be fixed by using an electric suction cup. At the same time, in cooperation with a pushing component, the upper cover can be pushed to the end of the bottom shell, so that the bottom shell and the upper cover can be combined together, facilitating subsequent welding of the connection between the bottom shell and the upper cover. There is no need for manual support and fixation of the bottom shell and the upper cover. This device can ensure stable placement between the bottom shell and the upper cover, which is beneficial to improving the welding accuracy.

[0029] 2. For a welding device for the metal shell of a battery according to the present invention, by setting a rotating component and two telescopic components, the positions of four pressing plates in the middle of a rotating cylinder can be adjusted, so as to clamp and position bottom shells of different models. It has a wide range of applications, high practicality, and meets the usage requirements.

[0030] 3. For a welding device for the metal shell of a battery according to the present invention, by setting a rotating mechanism, after one side of the bottom shell and the upper cover is welded, the driving component can drive the two rotating cylinders to rotate in the middle of the two fixed seats, so as to rotate the bottom shell and the upper cover fixed in the middle of the pressing plates, thus facilitating welding of other sides of the connection between the bottom shell and the upper cover, and enabling comprehensive welding of the bottom shell and the upper cover.

[0031] 4. For a welding device for the metal shell of a battery according to the present invention, by respectively arranging nozzles on both sides of the bottom shell, the conveying component can spray gas through the nozzles. After one side of the bottom shell and the upper cover is welded, during the process of the rotating component driving the bottom shell and the upper cover to rotate, one of the nozzles can blow air on the side to be welded, blowing away impurities or dust on its surface, ensuring the later welding quality and effect. At the same time, during the rotation of the bottom shell, the other nozzle can blow air on the welded weld to cool it down, dissipating heat from the welded part in a timely manner, which is beneficial to reducing thermal stress and deformation, and thus beneficial to enhancing the overall stability and durability of the welded structure.

[0032] 5. For a welding device for the metal shell of a battery according to the present invention, during the process of the rotating cylinder driving the bottom shell to rotate, the driving component can drive the two sliding components to work, so as to drive the two nozzles to reciprocate. That is, during the rotation of the bottom shell, the two nozzles can make reciprocating horizontal movements, which can blow air evenly and comprehensively on the side to be welded and the welded side, ensuring the dust removal effect and the cooling effect, and meeting the usage requirements.

[0033] 6. A welding device for the metal shell of a battery. Through the transmission component, a linkage effect can be achieved between the driving component and the two sliding components, which is beneficial to reducing the number of driving sources used in this device, reducing power consumption, and thus beneficial to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the structural schematic diagram of the present invention Figure 1 .

[0035] Figure 2 is the structural schematic diagram of the present invention Figure 2 .

[0036] Figure 3 is of the present invention Figure 2 the enlarged structural schematic diagram of part A in the present invention.

[0037] Figure 4 is the side view of the present invention.

[0038] Figure 5 is the structural schematic diagram of the fixed seat in the present invention.

[0039] Figure 6 is of the present invention Figure 5 the enlarged structural schematic diagram of part B in the present invention.

[0040] Figure 7 is the structural schematic diagram of the rotating component in the present invention.

[0041] Figure 8 is the structural schematic diagram of the vertical plate in the present invention.

[0042] Figure 9 is of the present invention Figure 8 the enlarged structural schematic diagram of part C in the present invention.

[0043] Figure 10 is the structural schematic diagram of the swing rod in the present invention.

[0044] Figure 11 is of the present invention Figure 10 the enlarged structural schematic diagram of part D in the present invention.

[0045] Wherein: 11, base; 12, fixed seat; 13, rotating cylinder; 14, annular plate; 15, chute; 16, L-shaped moving plate; 17, pressing plate; 18, rotating ring; 19, arc-shaped groove; 20, first plug rod; 21, connecting rod; 22, first gear ring; 23, rack; 24, U-shaped frame; 25, first cylinder; 26, first sprocket; 27, second sprocket; 28, chain; 29, motor; 30, motor base; 31, second gear ring; 32, gear; 33, vertical plate; 34, second cylinder; 35, electric slide; 37, moving block; 38, welding head; 39, third cylinder; 40, electric suction cup; 41, rotating shaft; 42, driving wheel; 43, driven wheel; 44, transmission belt; 45, mounting seat; 46, rotating rod; 47, sliding sleeve; 48, swing rod; 49, swing shaft; 50, first strip-shaped groove; 51, second plug rod; 52, second strip-shaped groove; 53, mounting block; 54, nozzle; 55, hose; 56, shunt pipe; 57, main pipe; 58, fan; 59, push plate; 60, mounting plate. Detailed implementation manner

[0046] The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0047] The present invention provides the following preferred embodiments:

[0048] Embodiment 1, as Figures 1 - 11 shown, a welding device for a battery metal shell includes a base 11, and also includes a vertical plate 33, a positioning mechanism, a rotating mechanism, a welding mechanism, a blowing mechanism and two fixed seats 12. The two fixed seats 12 are both fixedly installed at the top of the base 11. The vertical plate 33 is located on one side of one of the fixed seats 12 and is fixed to the top of the base 11;

[0049] The rotating mechanism includes a driving component, two rotating cylinders 13, two annular plates 14 and a plurality of connecting rods 21. Each rotating cylinder 13 is rotatably arranged in the middle of the fixed seat 12. Specifically, the fixed seat 12 and the rotating cylinder 13 are rotatably connected through a bearing. The two annular plates 14 are respectively fixedly installed on the sides of the two rotating cylinders 13 close to each other. The plurality of connecting rods 21 are equidistantly fixed between the two annular plates 14. The two rotating cylinders 13 on both sides can be fixed together through the connecting rods 21, so that the two rotating cylinders 13 and the two annular plates 14 can form a main body. The driving component is installed between the base 11 and one of the rotating cylinders 13. The driving component can drive one of the rotating cylinders 13 to rotate. Since the two rotating cylinders 13 can form a main body by using the connecting rods 21, the driving component can drive the two rotating cylinders 13 to rotate synchronously inside the fixed seat 12 when working;

[0050] The positioning mechanism includes an electric suction cup 40, a pushing component, a rotating component, two telescopic components, and eight pressing plates 17. Every four pressing plates 17 are arranged equidistantly in a ring at the middle of a rotating cylinder 13. Each telescopic component is located between the annular plate 14 and the four pressing plates 17. The rotating component is located between the two annular plates 14 and the two telescopic components. When the rotating component works, it can drive the two telescopic components to work, so as to adjust the positions of the four pressing plates 17 inside each rotating cylinder 13, thus enabling the fixation of bottom shells of different models. It has a wide application range, high practicability, meets the use requirements. The electric suction cup 40 is located on the side of the vertical plate 33 close to the fixed seat 12. The electric suction cup 40 can be used to adsorb and fix the upper cover. The pushing component is located between the vertical plate 33 and the electric suction cup 40. After the bottom shell is fixed, the upper cover is placed on the electric suction cup 40, and the electric suction cup 40 is used to adsorb and fix the upper cover. Then, the pushing component drives the electric suction cup 40 and the upper cover on the electric suction cup 40 to move, so that the upper cover can be butted with the bottom shell, facilitating the subsequent welding of the bottom shell and the upper cover. There is no need for manual support and fixation of the bottom shell and the upper cover. This equipment can ensure the stable placement between the bottom shell and the upper cover, which is beneficial to improving the welding accuracy;

[0051] The welding mechanism includes a welding head 38 and a moving component. The welding head 38 is located at the top of the vertical plate 33 and on the side close to the fixed seat 12. The moving component is installed

[0052] between the vertical plate 33 and the welding head 38. The moving component can drive the welding head 38 to move vertically and horizontally, so as to adjust the position of the welding head 38, enabling the welding head 38 to move along the gap between the bottom shell and the upper cover, which is convenient for welding;

[0053] The air blowing mechanism includes a transmission component, a conveying component, two spray heads 54, two mounting blocks 53, two second strip-shaped grooves 52, and two sliding components. The two second strip-shaped grooves 52 are symmetrically opened on both sides of the vertical plate 33. Each mounting block 53 is slidably arranged inside a second strip-shaped groove 52. Each spray head 54 is installed on the side of a mounting block 53 close to the fixed seat 12. The output end of the conveying component is connected to the input ends of the two spray heads 54. Each sliding component is located between the vertical plate 33 and a mounting block 53. The transmission component is located between a rotating cylinder 13 and the two sliding components;

[0054] By respectively arranging spray nozzles 54 on both sides of the bottom shell, the conveying component can spray gas through the spray nozzles 54. When one side of the bottom shell and the upper cover is welded, during the process of the rotating component driving the bottom shell and the upper cover to rotate, one of the spray nozzles 54 can blow air on the side to be welded, blowing away impurities or dust on its surface, ensuring the later welding quality and effect. At the same time, during the rotation of the bottom shell, the other spray nozzle 54 can blow air on the weld that has been welded to cool it down, dissipating heat from the welded part in a timely manner, which is beneficial to reducing thermal stress and deformation, and thus beneficial to enhancing the overall stability and durability of the welded structure;

[0055] When the rotating cylinder 13 drives the bottom shell to rotate, the transmission component can drive the two sliding components to work, thereby driving the two spray nozzles 54 to reciprocate. That is, when the bottom shell rotates, the two spray nozzles 54 can make reciprocating horizontal movements, blowing air evenly and comprehensively on the side to be welded and the welded side, ensuring the dust cleaning effect and the cooling effect, and meeting the use requirements.

[0056] As Figures 1 - 11 shown, the rotating component includes a U-shaped frame 24, a first cylinder 25, a push plate 59, and two racks 23. The U-shaped frame 24 is fixedly installed at the top of the two annular plates 14. The two racks 23 are symmetrically slidably arranged on both sides of the U-shaped frame 24. The push plate 59 is fixedly installed between one ends of the two racks 23. The first cylinder 25 is fixedly installed on the surface of the U-shaped frame 24, and the output end of the first cylinder 25 is fixedly connected to the surface of the push plate 59;

[0057] When it is necessary to adjust the position of the pressing plate 17 to fix the bottom shell, control the first cylinder 25 to work. The first cylinder 25 can drive the push plate 59 to move, thereby driving the two racks 23 on both sides to slide on the U-shaped frame 24.

[0058] As Figures 1 - 11 shown, each telescopic component includes a rotating ring 18, a first toothed ring 22, four arc-shaped grooves 19, four first inserting rods 20, four sliding grooves 15, and four L-shaped moving plates 16;

[0059] The swivel ring 18 is rotatably arranged on the side of the annular plate 14 away from the rotary cylinder 13. Specifically, the swivel ring 18 and the annular plate 14 are rotatably connected through a bearing. Four arc-shaped grooves 19 are equidistantly formed on the surface of the swivel ring 18. The first gear ring 22 is fixedly installed on the outer side of the swivel ring 18. The first gear ring 22 and the rack 23 are meshed with each other. When the rack 23 moves, the rack 23 can drive the first gear ring 22 to rotate, so as to drive the swivel ring 18 to rotate on the surface of the annular plate 14. Four sliding grooves 15 are equidistantly formed on the surface of the annular plate 14. One end of each L-shaped moving plate 16 is slidably arranged inside a sliding groove 15. The other end of each L-shaped moving plate 16 passes through the rotary cylinder 13 and is fixedly connected to a pressing plate 17. Specifically, the L-shaped moving plate 16 and the rotary cylinder 13 are slidably connected. Each first insertion rod 20 is fixed on the side of an L-shaped moving plate 16 away from the pressing plate 17. The other end of each first insertion rod 20 is inserted inside an arc-shaped groove 19.

[0060] When the rack 23 moves along with the movement of the push plate 59, since the rack 23 and the first gear ring 22 are meshed with each other, when the rack 23 moves, it can drive the first gear ring 22 to rotate, so that the swivel ring 18 can rotate on the surface of the annular plate 14. When the swivel ring 18 rotates, it can drive the four arc-shaped grooves 19 to rotate, so as to drive the L-shaped moving plate 16 to slide inside the sliding groove 15 through the first insertion rod 20, so as to drive the pressing plate 17 to move, realizing the adjustment of the position of the pressing plate 17, so that the four pressing plates 17 can respectively move to the four sides of the bottom shell and realize the fixation of the bottom shell.

[0061] As Figures 1 - 11 shown, the pushing component includes a third air cylinder 39 and a mounting plate 60. The mounting plate 60 is fixedly installed on the side of the vertical plate 33 away from the fixed seat 12. The third air cylinder 39 is fixedly installed above the mounting plate 60. The output end of the third air cylinder 39 passes through the vertical plate 33 and is rotatably connected to the electric suction cup 40 through a bearing.

[0062] The electric suction cup 40 can be used to adsorb and fix the upper cover. When it is necessary to dock the upper cover and the bottom shell, control the third air cylinder 39 to work. The third air cylinder 39 can drive the electric suction cup 40 to move, so as to drive the upper cover to move, move the upper cover to one side of the bottom shell, realize the docking of the upper cover and the bottom shell, and ensure the stable placement between the bottom shell and the upper cover, which is beneficial to improving the welding accuracy.

[0063] As Figures 1 - 11As shown, the driving assembly includes a first sprocket 26, a second sprocket 27, a chain 28, a motor 29 and a motor base 30. The first sprocket 26 is fixedly sleeved on the surface of the rotating cylinder 13 on the side away from the vertical plate 33. The motor base 30 is fixedly installed at the top of the base 11. The second sprocket 27 is rotatably arranged on one side of the motor base 30. The chain 28 is sleeved on the second sprocket 27 and the first sprocket 26. The motor 29 is fixedly installed on the side of the motor base 30 away from the second sprocket 27, and the output end of the motor 29 is fixedly connected to the second sprocket 27;

[0064] After one side of the upper cover and the bottom shell is welded, control the motor 29 to work. The motor 29 can drive the second sprocket 27 to rotate. Under the action of the chain 28, the first sprocket 26 can be driven to rotate, so that the rotating cylinder 13 can rotate. The rotating cylinder 13 can be rotated by ninety degrees, so that the other side can be rotated to the welding station;

[0065] It should be noted here that since one side of the bottom shell and the upper cover has been welded, the bottom shell and the upper cover have been connected together. At the same time, since the electric suction cup 40 is rotatably connected to the output end of the third cylinder 39 through a bearing, it will not affect the rotation of the upper cover. That is, when the bottom shell rotates by ninety degrees, the upper cover and the bottom shell can rotate synchronously.

[0066] As Figures 1 - 11 shown, the transmission assembly includes a second gear ring 31, a gear 32, a rotating shaft 41, two driving wheels 42, two driven wheels 43, two transmission belts 44 and two mounting seats 45;

[0067] The two mounting seats 45 are symmetrically fixed on the side of the vertical plate 33 away from the fixed seat 12. The two driven wheels 43 are respectively rotatably arranged on the two mounting seats 45. The rotating shaft 41 is rotatably arranged on the vertical plate 33. The two driving wheels 42 are coaxial and both fixed at one end of the rotating shaft 41. Each transmission belt 44 is sleeved on a driven wheel 43 and a driving wheel 42. The gear 32 is fixedly installed at the end of the rotating shaft 41 away from the transmission belt 44. The second gear ring 31 is fixedly sleeved on a rotating cylinder 13 on the side close to the vertical plate 33. The second gear ring 31 and the gear 32 are meshed with each other;

[0068] When the rotating cylinder 13 drives the bottom shell and the upper cover to rotate by ninety degrees, the rotating cylinder 13 can drive the second gear ring 31 to rotate. Since the second gear ring 31 and the gear 32 are meshed with each other, when the second gear ring 31 rotates, it can drive the gear 32 to rotate. The gear 32 can drive the two driving wheels 42 to rotate synchronously through the rotating shaft 41. Under the action of the transmission belt 44, when the driving wheel 42 rotates, it can drive the driven wheel 43 to rotate on the mounting seat 45.

[0069] As Figures 1 - 11As shown, each sliding component includes a rotating rod 46, a sliding sleeve 47, a swing rod 48, a swing shaft 49, a first strip-shaped groove 50 and a second inserting rod 51;

[0070] One end of the swing rod 48 is rotatably arranged on one side of the vertical plate 33. The first strip-shaped groove 50 is opened at the other end of the swing rod 48. The second inserting rod 51 is inserted into the interior of the first strip-shaped groove 50 and one end of the second inserting rod 51 is fixedly connected to the mounting block 53. The swing shaft 49 is fixedly installed at the end of the swing rod 48 away from the first strip-shaped groove 50. The sliding sleeve 47 is slidably sleeved on the swing shaft 49 through a sliding bearing. The rotating rod 46 is located on the side of the mounting seat 45 away from the driven wheel 43, and one end of the rotating rod 46 is coaxially and fixedly connected to the driven wheel 43. The other end of the rotating rod 46 is hinged to the surface of the sliding sleeve 47;

[0071] When the driven wheel 43 rotates, it can drive the rotating rod 46 to rotate. Since the other end of the rotating rod 46 is hinged to the sliding sleeve 47 and the sliding sleeve 47 is slidably sleeved on the swing shaft 49, when the rotating rod 46 rotates, it can drive the swing rod 48 to swing, thereby driving the first strip-shaped groove 50 to swing. Under the action of the second inserting rod 51, when the swing rod 48 swings, it can drive the mounting block 53 to horizontally move inside the second strip-shaped groove 52, thereby driving the nozzle 54 to horizontally move. Specifically, the two nozzles 54 are located at both ends of the upper side of the bottom case. When the bottom case rotates, it drives the sides on both sides of the bottom case to rotate. Therefore, the horizontally reciprocating sliding nozzles 54 can blow air evenly and comprehensively on the side to be welded and the welded side, ensuring the dust cleaning effect and the cooling effect;

[0072] It should be noted here that during actual use, before welding the first gap between the bottom case and the upper cover, it is necessary to manually clean the position to be welded first to ensure the welding effect.

[0073] As Figures 1 - 11 shown, the conveying component includes a blower 58, a main pipe 57, two shunt pipes 56 and two hoses 55. The blower 58 is fixedly installed at the top of the base 11. The output end of the blower 58 is connected to one end of the main pipe 57. The other end of the main pipe 57 is connected to one end of the two shunt pipes 56. Specifically, the main pipe 57 is connected to one end of the two shunt pipes 56 through a three-way valve. The other end of each shunt pipe 56 passes through the vertical plate 33 and is connected to one end of the hose 55. The other end of the hose 55 is connected to the nozzle 54. Specifically, a plurality of pipe fixing members are installed on the vertical plate 33, and the two shunt pipes 56 can be fixed by using the pipe fixing members;

[0074] Before the rotary drum 13 rotates, first control the blower 58 to operate. The blower 58 can deliver gas to the nozzle 54 through the hose 5, the shunt pipe 56, and the hose 55, and eject the gas through the nozzle 54. During the process of the rotating assembly driving the bottom case and the upper cover to rotate, one of the nozzles 54 can blow air on the side to be welded, blowing away impurities or dust on its surface, ensuring the quality and effect of subsequent welding. At the same time, during the rotation of the bottom case, the other nozzle 54 can blow air on the welded seam to cool it down, dissipating heat from the welded part in a timely manner, which is beneficial to reducing thermal stress and deformation, and thus enhancing the overall stability and durability of the welded structure.

[0075] As Figures 1 - 11 shown, the moving assembly includes a second cylinder 34, an electric slide 35, and a moving block 37. The electric slide 35 is vertically slidably arranged on the vertical plate 33. A moving block 37 is slidably arranged on the electric slide 35. The welding head 38 is fixedly installed on one side of the moving block 37. The second cylinder 34 is fixedly installed on one side of the vertical plate 33. The output end of the second cylinder 34 is fixedly connected to the electric slide 35;

[0076] The electric slide 35 can drive the moving block 37 to move horizontally, thereby driving the welding head 38 to move horizontally. The second cylinder 34 can drive the electric slide 35 to move vertically, thereby driving the welding head 38 to move vertically. When the welding head 38 moves horizontally, the position of the welding head 38 can be adjusted, enabling the welding head 38 to move along the gap between the bottom case and the upper cover, facilitating welding. When the welding head 38 moves vertically, the welding head 38 can move upward, enabling the welding head 38 to move away from the upper cover and the bottom case, playing a role in avoiding interference during the rotation of the bottom case and the upper cover.

[0077] As Figures 1 - 11 shown, the diameter of the gear 32 is smaller than the diameter of the second gear ring 31, and the diameter of the driven wheel 43 is smaller than the diameter of the driving wheel 42, which can achieve a speed-increasing effect. That is, when the rotary drum 13 rotates by ninety degrees, the nozzle 54 can achieve multiple reciprocating movements, further blowing air evenly and comprehensively on the side to be welded and the welded side.

[0078] The specific working process of the present invention is as follows:

[0079] First, place the bottom shell to be welded above the two abutting plates 17 at the bottom. Control the first cylinder 25 to work. The first cylinder 25 can drive the push plate 59 to move, thereby driving the two racks 23 on both sides to slide on the U-shaped frame 24. When the rack 23 moves with the movement of the push plate 59, since the rack 23 meshes with the first gear ring 22, when the rack 23 moves, it can drive the first gear ring 22 to rotate, so that the rotating ring 18 can rotate on the surface of the annular plate 14. When the rotating ring 18 rotates, it can drive the four arc-shaped grooves 19 to rotate, and thus drive the L-shaped moving plate 16 to slide inside the sliding groove 15 through the first plug rod 20, thereby driving the abutting plate 17 to move, realizing the adjustment of the position of the abutting plate 17, so that the four abutting plates 17 can respectively move to the four sides of the bottom shell and fix the bottom shell. Subsequently, fix the upper cover on one side of the electric suction cup 40. The electric suction cup 40 can adsorb and fix the upper cover. When it is necessary to dock the upper cover and the bottom shell, control the third cylinder 39 to work. The third cylinder 39 can drive the electric suction cup 40 to move, thereby driving the upper cover to move, and move the upper cover to one side of the bottom shell to realize the docking of the upper cover and the bottom shell, which can ensure the stable placement between the bottom shell and the upper cover and is conducive to improving the welding accuracy;

[0080] Subsequently, the operator manually clears the dust from the positions to be welded above the bottom shell and the upper cover. Control the second cylinder 34 to work so that the welding head 38 can move downward. Subsequently, control the electric sliding table 35 to work so that the welding head 38 can move along the gap between the upper cover and the bottom shell to realize the welding of one side;

[0081] After one side of the upper cover and the bottom shell is welded, control the blower 58 to work. The blower 58 can transport the gas to the nozzle 54 through the hose 5, the shunt pipe 56 and the hose 55, and eject the gas through the nozzle 54. Subsequently, control the motor 29 to work. The motor 29 can drive the second sprocket 27 to rotate. Under the action of the chain 28, it can drive the first sprocket 26 to rotate, so that the rotating cylinder 13 can rotate. The rotating cylinder 13 can be rotated by ninety degrees, so that the other side can be rotated to the welding station. During the rotation of the bottom shell and the upper cover, one of the nozzles 54 can blow air on the side to be welded to blow away the impurities or dust on its surface to ensure the later welding quality and effect. At the same time, during the rotation of the bottom shell, the other nozzle 54 can blow air on the welded weld to cool it down, and can dissipate heat from the welded part in time, which is conducive to reducing thermal stress and deformation, and thus conducive to enhancing the overall stability and durability of the welded structure;

[0082] Meanwhile, when the rotary drum 13 drives the bottom shell and the upper cover to rotate by 90 degrees, the rotary drum 13 can drive the second gear ring 31 to rotate. Since the second gear ring 31 meshes with the gear 32, when the second gear ring 31 rotates, it can drive the gear 32 to rotate. The gear 32 can drive the two driving wheels 42 to rotate synchronously through the rotating shaft 41. Under the action of the transmission belt 44, when the driving wheels 42 rotate, they can drive the driven wheels 43 to rotate on the mounting seat 45. When the driven wheels 43 rotate, they can drive the rotating rod 46 to rotate. Since the other end of the rotating rod 46 is hinged to the sliding sleeve 47, and the sliding sleeve 47 is slidably sleeved on the swing shaft 49, when the rotating rod 46 rotates, it can drive the swing rod 48 to swing, thereby driving the first strip-shaped groove 50 to swing. Under the action of the second insertion rod 51, when the swing rod 48 swings, it can drive the mounting block 53 to move horizontally inside the second strip-shaped groove 52, thereby driving the nozzle 54 to move horizontally. The two horizontally reciprocating nozzles 54 can blow air evenly and comprehensively on the side to be welded and the welded side, ensuring the dust cleaning effect and the temperature reduction effect;

[0083] After the bottom shell rotates to 90 degrees, the other sides of the bottom shell and the upper cover can be rotated to the working area to wait for the next welding. Repeat the above steps until the four sides of the bottom shell and the upper cover are all welded, and then the welding of the battery bottom shell and the upper cover can be completed.

[0084] The beneficial effects of the present invention are specifically embodied in the above. The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding device for a battery metal shell, comprising a base (11), characterized in that, It further includes a vertical plate (33), a positioning mechanism, a rotating mechanism, a welding mechanism, a blowing mechanism, and two fixing seats (12). The two fixing seats (12) are both fixedly installed at the top of the base (11). The vertical plate (33) is located on one side of one of the fixing seats (12) and is fixed to the top of the base (11). The rotating mechanism includes a driving component, two rotating cylinders (13), two annular plates (14), and a plurality of connecting rods (21). Each rotating cylinder (13) is rotatably arranged in the middle of the fixing seat (12). The two annular plates (14) are respectively fixedly installed on the sides of the two rotating cylinders (13) close to each other. The plurality of connecting rods (21) are fixedly arranged at equal intervals between the two annular plates (14). The driving component is installed between the base (11) and one of the rotating cylinders (13). The positioning mechanism includes an electric suction cup (40), a pushing component, a rotating component, two telescopic components, and eight pressing plates (17). Every four pressing plates (17) are arranged in a ring at equal intervals in the middle of one rotating cylinder (13). Each telescopic component is located between the annular plate (14) and the four pressing plates (17). The rotating component is located between the two annular plates (14) and the two telescopic components. The electric suction cup (40) is located on the side of the vertical plate (33) close to the fixing seat (12). The pushing component is located between the vertical plate (33) and the electric suction cup (40). The welding mechanism includes a welding head (38) and a moving component. The welding head (38) is located at the top of the vertical plate (33) and on the side close to the fixing seat (12). The moving component is installed between the vertical plate (33) and the welding head (38). The blowing mechanism includes a transmission component, a conveying component, two spray heads (54), two mounting blocks (53), two second strip-shaped grooves (52), and two sliding components. The two second strip-shaped grooves (52) are symmetrically opened on both sides of the vertical plate (33). Each mounting block (53) is slidably arranged inside one second strip-shaped groove (52). Each spray head (54) is installed on the side of one mounting block (53) close to the fixing seat (12). The output end of the conveying component is connected to the input ends of the two spray heads (54). Each sliding component is located between the vertical plate (33) and one mounting block (53). The transmission component is located between one rotating cylinder (13) and the two sliding components. The transmission component includes a second gear ring (31), a gear (32), a rotating shaft (41), two driving wheels (42), two driven wheels (43), two transmission belts (44), and two mounting seats (45). Two mounting seats (45) are symmetrically fixed on the side of the vertical plate (33) away from the fixed seat (12). Two driven wheels (43) are respectively rotatably arranged on the two mounting seats (45). The rotating shaft (41) is rotatably arranged on the vertical plate (33). Two driving wheels (42) are coaxially and fixedly arranged at one end of the rotating shaft (41). Each transmission belt (44) is sleeved on a driven wheel (43) and a driving wheel (42). The gear (32) is fixedly installed at the end of the rotating shaft (41) away from the transmission belt (44). The second toothed ring (31) is fixedly sleeved on a rotating cylinder (13) on the side close to the vertical plate (33). The second toothed ring (31) and the gear (32) are meshed with each other; Each sliding assembly includes a rotating rod (46), a sliding sleeve (47), a swing rod (48), a swing shaft (49), a first strip-shaped groove (50) and a second inserting rod (51); One end of the swing rod (48) is rotatably arranged on one side of the vertical plate (33). The first strip-shaped groove (50) is opened at the other end of the swing rod (48). The second inserting rod (51) is inserted into the first strip-shaped groove (50) and one end of the second inserting rod (51) is fixedly connected with the mounting block (53). The swing shaft (49) is fixedly installed at the end of the swing rod (48) away from the first strip-shaped groove (50). The sliding sleeve (47) is slidably sleeved on the swing shaft (49) through a sliding bearing. The rotating rod (46) is located on the side of the mounting seat (45) away from the driven wheel (43), and one end of the rotating rod (46) is coaxially and fixedly connected with the driven wheel (43). The other end of the rotating rod (46) is hinged to the surface of the sliding sleeve (47).

2. The welding device for the metal shell of a battery according to claim 1, characterized in that The rotating assembly includes a U-shaped frame (24), a first air cylinder (25), a push plate (59) and two racks (23). The U-shaped frame (24) is fixedly installed at the top of the two annular plates (14). The two racks (23) are symmetrically and slidably arranged on both sides of the U-shaped frame (24). The push plate (59) is fixedly installed between one ends of the two racks (23). The first air cylinder (25) is fixedly installed on the surface of the U-shaped frame (24). The output end of the first air cylinder (25) is fixedly connected with the surface of the push plate (59).

3. A welding device for a battery metal casing according to claim 2, characterized in that, Each telescopic assembly includes a rotating ring (18), a first toothed ring (22), four arc-shaped grooves (19), four first inserting rods (20), four sliding grooves (15) and four L-shaped moving plates (16); The swivel ring (18) is rotatably arranged on the side of the annular plate (14) away from the rotary cylinder (13). Four arc-shaped grooves (19) are equidistantly formed on the surface of the swivel ring (18). The first gear ring (22) is fixedly installed on the outer side of the swivel ring (18). The first gear ring (22) meshes with the rack (23). Four sliding grooves (15) are equidistantly formed on the surface of the annular plate (14). One end of each L-shaped moving plate (16) is slidably arranged inside a sliding groove (15). The other end of each L-shaped moving plate (16) passes through the rotary cylinder (13) and is fixedly connected to a pressing plate (17). Each first plug rod (20) is fixed on the side of an L-shaped moving plate (16) away from the pressing plate (17). The other end of each first plug rod (20) is inserted into the inside of an arc-shaped groove (19).

4. A welding device for a battery metal casing according to claim 3, characterized in that, The pushing component includes a third air cylinder (39) and a mounting plate (60). The mounting plate (60) is fixedly installed on the side of the vertical plate (33) away from the fixed seat (12). The third air cylinder (39) is fixedly installed above the mounting plate (60). The output end of the third air cylinder (39) passes through the vertical plate (33) and is rotatably connected to the electric suction cup (40) through a bearing.

5. The welding device for a battery metal casing according to claim 4, characterized in that, The driving component includes a first sprocket (26), a second sprocket (27), a chain (28), a motor (29) and a motor base (30). The first sprocket (26) is fixedly sleeved on the surface of the rotary cylinder (13) on the side away from the vertical plate (33). The motor base (30) is fixedly installed at the top of the base (11). The second sprocket (27) is rotatably arranged on one side of the motor base (30). The chain (28) is sleeved on the second sprocket (27) and the first sprocket (26). The motor (29) is fixedly installed on the side of the motor base (30) away from the second sprocket (27). The output end of the motor (29) is fixedly connected to the second sprocket (27).

6. The welding device for the metal shell of a battery according to claim 5, wherein The conveying component includes a blower (58), a main pipe (57), two shunt pipes (56) and two hoses (55). The blower (58) is fixedly installed at the top of the base (11). The output end of the blower (58) is connected to one end of the main pipe (57). The other end of the main pipe (57) is connected to one end of the two shunt pipes (56). The other end of each shunt pipe (56) passes through the vertical plate (33) and is connected to one end of a hose (55). The other end of the hose (55) is connected to the nozzle (54).

7. A welding device for a battery metal casing according to claim 6, characterized in that, The moving component includes a second air cylinder (34), an electric slide table (35) and a moving block (37). The electric slide table (35) is vertically slidably arranged on the vertical plate (33). A moving block (37) is slidably arranged on the electric slide table (35). The welding head (38) is fixedly installed on one side of the moving block (37). The second air cylinder (34) is fixedly installed on one side of the vertical plate (33). The output end of the second air cylinder (34) is fixedly connected to the electric slide table (35).

8. A welding device for a battery metal casing according to claim 7, characterized in that, The diameter of the gear (32) is smaller than the diameter of the second gear ring (31), and the diameter of the driven wheel (43) is smaller than the diameter of the driving wheel (42).

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