Welding equipment for battery metal shell

Abstract

The invention relates to the technical field of battery metal shell welding, in particular to battery metal shell welding equipment which comprises a base and further comprises a vertical plate, a positioning mechanism, a rotating mechanism, a welding mechanism, a blowing mechanism and two fixing seats. The positioning mechanism comprises an electric suction cup, a pushing assembly, a rotating assembly, two telescopic assemblies and eight abutting plates, the welding mechanism comprises a welding head and a moving assembly, the blowing mechanism comprises a transmission assembly, a conveying assembly, two sprayers, two mounting blocks, two second strip-shaped grooves and two sliding assemblies, and the eight abutting plates can be used for fixing a battery bottom shell. The upper cover can be fixed through the electric suction cup, meanwhile, the bottom shell and the upper cover can be combined together in cooperation with the pushing assembly, manual fixing is not needed, it can be guaranteed that the bottom shell and the upper cover are stably placed, and the welding precision can be improved easily.

Description

Technical Field

[0001] The invention relates to the technical field of battery metal shell welding, in particular to a welding device for a battery metal shell. Background Art

[0002] The main functions of the battery casing include protecting internal components, preventing electrolyte leakage, and providing structural support. It not only protects the battery module from the influence of the external environment, such as external impact, heat and water seepage, but also ensures that the battery module is not damaged in the event 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 shell generally has the following shortcomings during welding: 1. When welding the bottom shell and the upper cover of a square battery, it is generally necessary to manually fix the bottom shell and the upper cover during the welding process. Manual positioning is time-consuming and laborious, and errors are prone to occur, resulting in low welding accuracy of the bottom shell and the upper cover; 2. During the welding process, the position to be welded cannot be cleaned. If impurities or dust accumulate at the welding point 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 fail to dissipate heat in time for the welded parts, which is not conducive to reducing thermal stress and deformation, and thus is not conducive to enhancing the overall stability and durability of the welded structure.

[0004] In view of the above problems, a welding device for a metal shell of a battery is now provided. Summary of the invention

[0005] The object of the present invention is to provide a welding device for a metal shell of a battery to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A welding device for a battery metal shell comprises a base, a vertical plate, a positioning mechanism, a rotating mechanism, a welding mechanism, a blowing mechanism and two fixing seats, wherein the two fixing seats are fixedly mounted on the top of the base, and the vertical plate is located on one side of one of the fixing seats and fixed on the top of the base; The rotating mechanism includes a driving assembly, two rotating drums, two annular plates and a plurality of connecting rods, each rotating drum is rotatably arranged in the middle of a fixed seat, the two annular plates are respectively fixedly installed on the sides of the two rotating drums close to each other, a plurality of connecting rods are equidistantly fixed between the two annular plates, and the driving assembly is installed between the base and one of the rotating drums; The positioning mechanism includes an electric suction cup, a pushing assembly, a rotating assembly, two telescopic assemblies and eight abutting plates, each of the four abutting plates are arranged in an annular shape and equidistantly in the middle of a rotating drum, each telescopic assembly is located between the annular plate and the four abutting plates, the rotating assembly is located between the two annular plates and the two telescopic assemblies, the electric suction cup is located on the side of the vertical plate close to the fixed seat, and the pushing assembly is located between the vertical plate and the electric suction cup; The welding mechanism includes a welding head and a moving assembly. The welding head is located at the top of the vertical plate and close to one side of the fixed seat. The moving assembly is installed on Between the vertical plate and the weld joint; The blowing mechanism includes a transmission assembly, a conveying assembly, two nozzles, two mounting blocks, two second strip grooves and two sliding assemblies. The two second strip grooves are symmetrically opened on both sides of the vertical plate. Each mounting block is slidably arranged inside a second strip groove. Each nozzle is installed on a side of a mounting block close to a fixed seat. The output end of the conveying assembly is connected to the input end of the two nozzles. Each sliding assembly is located between the vertical plate and a mounting block. The transmission assembly is located between a rotating drum and two sliding assemblies.

[0007] As a further solution of the present invention: the rotating assembly includes a U-shaped frame, a first cylinder, a push plate and two racks, the U-shaped frame is fixedly installed on 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, and the output end of the first cylinder is fixedly connected to the surface of the push plate.

[0008] As a further solution of the present invention: each telescopic assembly includes a swivel, a first gear ring, four arc-shaped grooves, four first insertion rods, four slide grooves and four L-shaped moving plates; The swivel is rotatably arranged on a side of the annular plate away from the rotating drum, four arc-shaped grooves are equidistantly arranged on the surface of the swivel, the first gear ring is fixedly installed on the outer side of the swivel, the first gear ring and the rack are meshed with each other, four slide grooves are equidistantly arranged on the surface of the annular plate, one end of each L-shaped movable plate is slidably arranged inside a slide groove, the other end of each L-shaped movable plate passes through the rotating drum and is fixedly connected to a clamping plate, each first plug rod is fixed on a side of an L-shaped movable plate away from the clamping plate, and the other end of each first plug rod is inserted into an arc groove.

[0009] As a further solution of the present invention: the pushing assembly includes a third cylinder and a mounting plate, the mounting plate is fixedly mounted on a side of the vertical plate away from the fixed seat, the third cylinder is fixedly mounted above the mounting plate, and the output end of the third cylinder passes through the vertical plate and is rotatably connected to the electric suction cup through a bearing.

[0010] As a further solution of the present invention: the driving assembly includes a first sprocket, a second sprocket, a chain, a motor and a motor seat. The first sprocket is fixedly mounted on the surface of the rotating drum away from the side of the vertical plate. The motor seat is fixedly installed on the top of the base. The second sprocket is rotatably arranged on one side of the motor seat. The chain is mounted on the second sprocket and the first sprocket. The motor is fixedly mounted on the side of the motor seat away from the second sprocket. The output end of the motor is fixedly connected to the second sprocket.

[0011] As a further solution of the present invention: the transmission assembly includes a second gear ring, a gear, a rotating shaft, two driving wheels, two driven wheels, two transmission belts and two mounting seats; The two mounting seats are symmetrically fixed on a side of the vertical plate away from the fixed seat, the two driven wheels are rotatably set on the two mounting seats respectively, the rotating shaft is rotatably set on the vertical plate, the two driving wheels are coaxial and both are fixed on one end of the rotating shaft, each transmission belt is sleeved on a driven wheel and a driving wheel, the gear is fixedly mounted on one end of the rotating shaft away from the transmission belt, the second gear ring is fixedly sleeved on a rotating drum close to the side of the vertical plate, and the second gear ring and the gear are meshed with each other.

[0012] As a further solution of the present invention: each sliding assembly includes a rotating rod, a sliding sleeve, a swing rod, a swing shaft, a first strip groove and a second insertion rod; One end of the swing rod is rotatably set on one side of the vertical plate, a first strip groove is opened at the other end of the swing rod, the second plug rod is inserted into the inside of the first strip groove and one end of the second plug rod is fixedly connected to the mounting block, the swing shaft is fixedly installed on the end of the swing rod away from the first strip groove, the sliding sleeve is slidingly set 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 with the driven wheel and fixedly connected, and the other end of the rotating rod is hinged to the surface of the sliding sleeve.

[0013] As a further solution of the present invention: the conveying assembly includes a fan, a main pipe, two branch pipes and two hoses, the fan is fixedly installed on the top of the base, the output end of the fan is connected to one end of the main pipe, the other end of the main pipe is connected to one end of the two branch pipes, the other end of each branch pipe passes through the vertical plate and is connected to one end of the hose, and the other end of the hose is connected to the nozzle.

[0014] As a further solution of the present invention: the moving assembly includes a second cylinder, an electric slide and a moving block, the electric slide is vertically slidably arranged on the vertical plate, the moving block is slidably arranged on the electric slide, 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.

[0015] 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.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. A welding device for a battery metal shell of the present invention can fix the battery bottom shell by setting a positioning mechanism, using eight abutment plates, and fixing the upper cover by an electric suction cup. At the same time, in conjunction 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, which is convenient for subsequent welding of the connection between the bottom shell and the upper cover. There is no need to manually support and fix the bottom shell and the upper cover. The device can ensure stable placement between the bottom shell and the upper cover, which is conducive to improving welding accuracy.

[0017] 2. The welding equipment for battery metal shells of the present invention can adjust the positions of four clamping plates in the middle of a rotating drum by setting a rotating component and two telescopic components, so as to clamp and position bottom shells of different models. It has a wide range of applications, high practicality, and meets usage requirements.

[0018] 3. A welding device for a battery metal shell of the present invention is provided with a rotating mechanism. After the welding of one side of the bottom shell and the upper cover is completed, the driving assembly can drive the two rotating drums to rotate in the middle of the two fixed seats, so that the bottom shell and the upper cover fixed in the middle of the clamping plate can be rotated, so as to facilitate the welding of other sides of the connection between the bottom shell and the upper cover, and the bottom shell and the upper cover can be fully welded.

[0019] 4. A welding device for a metal shell of a battery of the present invention provides nozzles on both sides of the bottom shell, and a conveying assembly is used to spray gas through the nozzles. After welding of one side of the bottom shell and the upper cover is completed, while the rotating assembly drives the bottom shell and the upper cover to rotate, one of the nozzles can blow air to the side to be welded, and remove impurities or dust on its surface, thereby ensuring the quality and effect of subsequent welding. Meanwhile, while the bottom shell rotates, another nozzle can blow air to cool down the weld seam after welding, and can dissipate heat in time at the welded part, thereby reducing thermal stress and deformation, thereby enhancing the overall stability and durability of the welded structure.

[0020] 5. The welding equipment for battery metal shell of the present invention can drive two sliding components to work through the transmission component when the rotating drum drives the bottom shell to rotate, thereby driving two nozzles to move back and forth, that is, when the bottom shell rotates, the two nozzles can move back and forth horizontally, and can evenly and comprehensively blow air to the side to be welded and the side after welding, thereby ensuring the dust cleaning effect and cooling effect, and meeting the use requirements.

[0021] 6. The welding equipment for battery metal shell of the present invention realizes linkage effect between the driving assembly and the two sliding assemblies through the transmission assembly, which is beneficial to reduce the number of driving sources used in the device, reduce power consumption, and further help reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0023] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure of part A.

[0025] Figure 4 It is a side view of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the fixing seat in the present invention.

[0027] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of part B.

[0028] Figure 7 It is a schematic diagram of the structure of the rotating assembly in the present invention.

[0029] Figure 8 It is a schematic structural diagram of the vertical plate in the present invention.

[0030] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of part C.

[0031] Fig.10 It is a structural schematic diagram of the swing rod in the present invention.

[0032] Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure of part D.

[0033] Among them: 11, base; 12, fixed seat; 13, rotating drum; 14, annular plate; 15, slide groove; 16, L-shaped movable plate; 17, abutment plate; 18, rotating ring; 19, arc 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 seat; 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, rocker arm; 49, swing shaft; 50, first strip groove; 51, second plug rod; 52, second strip groove; 53, mounting block; 54, nozzle; 55, hose; 56, shunt pipe; 57, main pipe; 58, fan; 59, push plate; 60, mounting plate. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] The present invention provides the following preferred embodiments: Embodiment 1, as Figure 1-Figure 11 As shown, a welding device for a battery metal shell includes a base 11, 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 fixedly mounted on the top of the base 11, and the vertical plate 33 is located on one side of one of the fixing seats 12 and fixed to the top of the base 11; The rotating mechanism includes a driving assembly, two rotating drums 13, two annular plates 14 and a plurality of connecting rods 21. Each rotating drum 13 is rotatably arranged in the middle of the fixed seat 12. Specifically, the fixed seat 12 and the rotating drum 13 are rotatably connected via a bearing. The two annular plates 14 are respectively fixedly installed on the sides of the two rotating drums 13 that are close to each other. A plurality of connecting rods 21 are equidistantly fixed between the two annular plates 14. The two rotating drums 13 on both sides can be fixed together by the connecting rods 21, so that the two rotating drums 13 and the two annular plates 14 can form a main body. The driving assembly is installed between the base 11 and one of the rotating drums 13. The driving assembly can drive one of the rotating drums 13 to rotate. Since the two rotating drums 13 can form a main body by using the connecting rods 21, the driving assembly can drive the two rotating drums 13 to rotate synchronously inside the fixed seat 12 when working. The positioning mechanism includes an electric suction cup 40, a pushing component, a rotating component, two telescopic components and eight abutting plates 17. Each of the four abutting plates 17 is annularly and equidistantly arranged in the middle of a rotating drum 13. Each telescopic component is located between the annular plate 14 and the four abutting 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 abutting plates 17 inside each rotating drum 13, so as to fix the bottom shells of different models. It has a wide range of applications and high practicality, and meets the use requirements. The electric suction cup 40 is positioned On the side of the vertical plate 33 close to the fixing seat 12, the upper cover can be adsorbed and fixed by the electric suction cup 40. 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 upper cover is adsorbed and fixed by the electric suction cup 40. Then, the electric suction cup 40 and the upper cover on the electric suction cup 40 are driven by the pushing component to move, so that the upper cover can be docked with the bottom shell, so as to facilitate the subsequent welding of the bottom shell and the upper cover. There is no need to manually support and fix the bottom shell and the upper cover. The device can ensure the stable placement between the bottom shell and the upper cover, which is conducive to improving the welding accuracy. The welding mechanism includes a welding head 38 and a moving assembly. The welding head 38 is located at the top of the vertical plate 33 and close to one side of the fixed seat 12. The moving assembly is installed on Between the vertical plate 33 and the welding head 38, the moving assembly can drive the welding head 38 to move vertically and horizontally, so as to adjust the position of the welding head 38, so that the welding head 38 can move along the gap between the bottom shell and the upper cover, which is convenient for welding; The blowing mechanism includes a transmission assembly, a conveying assembly, two nozzles 54, two mounting blocks 53, two second strip grooves 52 and two sliding assemblies. The two second strip grooves 52 are symmetrically arranged on both sides of the vertical plate 33. Each mounting block 53 is slidably arranged inside a second strip groove 52. Each nozzle 54 is installed on a side of a mounting block 53 close to the fixed seat 12. The output end of the conveying assembly is connected to the input end of the two nozzles 54. Each sliding assembly is located between the vertical plate 33 and a mounting block 53. The transmission assembly is located between a rotating drum 13 and the two sliding assemblies. By respectively arranging nozzles 54 on both sides of the bottom shell, the gas can be sprayed out through the nozzles 54 by using the conveying assembly. When the welding of one side of the bottom shell and the upper cover is completed, during the process of the bottom shell and the upper cover being driven by the rotating assembly to rotate, one of the nozzles 54 can blow air to the side to be welded, and blow away the impurities or dust on its surface, so as to ensure the quality and effect of the subsequent welding. At the same time, during the rotation of the bottom shell, the other nozzle 54 can blow air to cool the weld seam after welding, and can timely dissipate heat from the welded part, which is beneficial to reduce thermal stress and deformation, thereby facilitating the overall stability and durability of the welded structure. When the rotating drum 13 drives the bottom shell to rotate, the transmission assembly can drive the two sliding assemblies to work, thereby driving the two nozzles 54 to move back and forth. That is, when the bottom shell rotates, the two nozzles 54 can move back and forth horizontally, and can evenly and comprehensively blow air to the side to be welded and the side that has been welded, thereby ensuring the dust cleaning effect and the cooling effect to meet the use requirements.

[0036] like Figure 1-Figure 11 As shown, the rotating assembly 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 mounted on 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 mounted between one ends of the two racks 23, the first cylinder 25 is fixedly mounted 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; When the position of the abutting plate 17 needs to be adjusted to fix the bottom shell, the first cylinder 25 is controlled to work, and 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.

[0037] like Figure 1-Figure 11 As shown, each telescopic assembly includes a swivel 18, a first gear ring 22, four arc-shaped grooves 19, four first insertion rods 20, four slide grooves 15 and four L-shaped moving plates 16; The swivel 18 is rotatably arranged on a side of the annular plate 14 away from the rotating drum 13. Specifically, the swivel 18 and the annular plate 14 are rotatably connected via a bearing. Four arc grooves 19 are equidistantly arranged on the surface of the swivel 18. The first gear ring 22 is fixedly installed on the outer side of the swivel 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, thereby driving the swivel 18 to rotate on the surface of the annular plate 14. Four slide grooves 15 are equidistantly arranged on the surface of the annular plate 14. One end of each L-shaped movable plate 16 is slidably arranged inside a slide groove 15. The other end of each L-shaped movable plate 16 passes through the rotating drum 13 and is fixedly connected to a clamping plate 17. Specifically, the L-shaped movable plate 16 and the rotating drum 13 are slidably connected. Each first plug rod 20 is fixed on a side of an L-shaped movable plate 16 away from the clamping plate 17. The other end of each first plug rod 20 is inserted into the inside of an arc groove 19. When the rack 23 moves with the movement of the push plate 59, since the rack 23 and the first gear ring 22 are meshed with each other, the first gear ring 22 can be rotated when the rack 23 moves, so that the swivel 18 can rotate on the surface of the annular plate 14. When the swivel 18 rotates, it can drive the four arc grooves 19 to rotate, so that the L-shaped moving plate 16 can be driven to slide inside the slide groove 15 through the first plug rod 20, thereby driving the clamping plate 17 to move, thereby adjusting the position of the clamping plate 17, so that the four clamping plates 17 can be moved to the four sides of the bottom shell respectively and fix the bottom shell.

[0038] like Figure 1-Figure 11 As shown, the pushing assembly includes a third cylinder 39 and a mounting plate 60. The mounting plate 60 is fixedly mounted on a side of the vertical plate 33 away from the fixing seat 12. The third cylinder 39 is fixedly mounted above the mounting plate 60. The output end of the third cylinder 39 passes through the vertical plate 33 and is rotatably connected to the electric suction cup 40 through a bearing. The upper cover can be adsorbed and fixed by the electric suction cup 40. When the upper cover and the bottom shell need to be docked, the third cylinder 39 is controlled to work. The third cylinder 39 can drive the electric suction cup 40 to move, thereby driving the upper cover to move to one side of the bottom shell, so as to achieve docking between the upper cover and the bottom shell, which can ensure stable placement between the bottom shell and the upper cover and is conducive to improving welding accuracy.

[0039] like Figure 1-Figure 11 As shown, the driving assembly includes a first sprocket 26, a second sprocket 27, a chain 28, a motor 29 and a motor seat 30. The first sprocket 26 is fixedly sleeved on the surface of the drum 13 away from the side of the vertical plate 33. The motor seat 30 is fixedly installed on the top of the base 11. The second sprocket 27 is rotatably arranged on one side of the motor seat 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 seat 30 away from the second sprocket 27. The output end of the motor 29 is fixedly connected to the second sprocket 27. When the upper cover and one side of the bottom shell are welded, the motor 29 is controlled to work, and the motor 29 can drive the second sprocket 27 to rotate, and the first sprocket 26 can be driven to rotate under the action of the chain 28, so that the rotating drum 13 can be rotated, and the rotating drum 13 can be rotated 90 degrees, so that the other side can be rotated to the welding station; It should be noted here that since the bottom shell and the upper cover have been welded on one side, 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 ninety degrees, the upper cover and the bottom shell can rotate synchronously.

[0040] like Figure 1-Figure 11As 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; Two mounting seats 45 are symmetrically fixed on a side of the vertical plate 33 away from the fixed seat 12, two driven wheels 43 are rotatably set on the two mounting seats 45 respectively, the rotating shaft 41 is rotatably set on the vertical plate 33, two driving wheels 42 are coaxial and fixed on 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 mounted on one end of the rotating shaft 41 away from the transmission belt 44, the second gear ring 31 is fixedly sleeved on a rotating drum 13 close to one side of the vertical plate 33, and the second gear ring 31 and the gear 32 are meshed with each other; When the drum 13 drives the bottom shell and the upper cover to rotate ninety degrees, the drum 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.

[0041] like Figure 1-Figure 11 As shown, each sliding assembly includes a rotating rod 46, a sliding sleeve 47, a swing rod 48, a swing shaft 49, a first strip groove 50 and a second insertion rod 51; One end of the swing rod 48 is rotatably arranged on one side of the vertical plate 33, a first strip groove 50 is provided at the other end of the swing rod 48, a second plug rod 51 is inserted into the first strip groove 50 and one end of the second plug rod 51 is fixedly connected to the mounting block 53, a swing shaft 49 is fixedly installed on the end of the swing rod 48 away from the first strip groove 50, a sliding sleeve 47 is slidingly sleeved on the swing shaft 49 through a sliding bearing, a 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 coaxial with and fixedly connected to the driven wheel 43, and the other end of the rotating rod 46 is hinged to the surface of the sliding sleeve 47; 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 slidingly 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 groove 50 to swing. Under the action of the second plug rod 51, when the swing rod 48 swings, it can drive the mounting block 53 to move horizontally inside the second strip groove 52, thereby driving the nozzle 54 to move horizontally. Specifically, the two nozzles 54 are located at the two ends of the upper side of the bottom shell. When the bottom shell rotates, it drives the side edges on both sides of the bottom shell to rotate. Therefore, the horizontally reciprocating nozzles 54 can evenly and comprehensively blow air to the side to be welded and the side that has been welded, ensuring the dust cleaning effect and the cooling effect. It should be noted here that in actual use, before welding the first gap between the bottom shell and the upper cover, it is necessary to manually clean the position that is about to be welded to ensure the welding effect.

[0042] like Figure 1-Figure 11 As shown, the conveying assembly includes a fan 58, a main pipe 57, two branch pipes 56 and two hoses 55. The fan 58 is fixedly installed on the top of the base 11. The output end of the fan 58 is connected to one end of the main pipe 57, and the other end of the main pipe 57 is connected to one end of the two branch pipes 56. Specifically, the main pipe 57 is connected to one end of the two branch pipes 56 through a three-way valve, and the other end of each branch 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 pipeline fixings are installed on the vertical plate 33, and the two branch pipes 56 can be fixed by using the pipeline fixings. Before the drum 13 rotates, the fan 58 is first controlled to work. The fan 58 can transport the gas to the nozzle 54 through the hose 5 shunt pipe 56 and the hose 55, and spray the gas through the nozzle 54. In the process of the rotating assembly driving the bottom shell and the upper cover to rotate, one of the nozzles 54 can blow air to the side to be welded, and blow away the impurities or dust on its surface to ensure the quality and effect of the subsequent welding. At the same time, in the process of the bottom shell rotating, the other nozzle 54 can blow air to cool the weld seam after welding, and can dissipate heat in time at the welded part, which is beneficial to reduce thermal stress and deformation, thereby helping to enhance the overall stability and durability of the welded structure.

[0043] like Figure 1-Figure 11 As 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. The 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. The electric slide 35 can be used to drive the moving block 37 to move horizontally, thereby driving the welding head 38 to move horizontally. The second cylinder 34 can be used to 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 so that the welding head 38 can move along the gap between the bottom shell and the upper cover to facilitate welding. When the welding head 38 moves vertically, the welding head 38 can move upward so that the welding head 38 can be away from the upper cover and the bottom shell, thereby playing a role of avoidance during the rotation of the bottom shell and the upper cover.

[0044] like Figure 1-Figure 11As 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 the effect of speed increase, that is, when the drum 13 rotates ninety degrees, the nozzle 54 can achieve multiple reciprocating movements, and can further evenly and comprehensively blow air to the side to be welded and the side that has been welded.

[0045] The specific working process of the present invention is as follows: First, place the bottom shell to be welded above the two lowest abutment plates 17, 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 and the first gear ring 22 are meshed with each other, when the rack 23 moves, the first gear ring 22 can be rotated, so that the swivel 18 can rotate on the surface of the annular plate 14, and the swivel 18 can drive the four arc grooves 19 to rotate when rotating, so that the L-shaped moving plate 16 can be driven in the slide groove 1 through the first plug rod 20. 5, so as to drive the abutting plate 17 to move, realize the adjustment of the position of the abutting plate 17, so that the four abutting plates 17 can be respectively moved to the four sides of the bottom shell and realize the fixation of the bottom shell, and then the upper cover is fixed to one side of the electric suction cup 40, and the upper cover can be adsorbed and fixed by the electric suction cup 40. When it is necessary to dock the upper cover and the bottom shell, the third cylinder 39 is controlled to work, and 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; Then, the personnel manually clean the position where welding is to be performed on the bottom shell and the upper cover, control the second cylinder 34 to work, so that the welding head 38 can move downward, and then control the electric slide 35 to work, so that the welding head 38 can move along the gap between the upper cover and the bottom shell to achieve welding on one side; After the welding of one side of the upper cover and the bottom shell is completed, the fan 58 is controlled to work, and the fan 58 can transport the gas to the nozzle 54 through the hose 5 shunt pipe 56 and the hose 55, and the gas is ejected through the nozzle 54, and then the motor 29 is controlled to work, and the motor 29 can drive the second sprocket 27 to rotate, and under the action of the chain 28, the first sprocket 26 can be driven to rotate, so that the rotating drum 13 can be rotated, and the rotating drum 13 can be rotated 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 to the side to be welded, and blow away the impurities or dust on its surface to ensure the quality and effect of the later welding. At the same time, during the rotation of the bottom shell, the other nozzle 54 can blow air to cool the weld seam after welding, and can timely dissipate heat from the welded part, which is conducive to reducing thermal stress and deformation, thereby helping to enhance the overall stability and durability of the welded structure; At the same time, when the drum 13 drives the bottom shell and the upper cover to rotate 90 degrees, the drum 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. 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 connected to the mounting seat 45, the rotating rod 46 can rotate. The sliding sleeves 47 are hinged, and the sliding sleeves 47 are slidingly sleeved on the swing shaft 49, so when the rotating rod 46 rotates, it can drive the swing rod 48 to swing, thereby driving the first strip groove 50 to swing. Under the action of the second plug rod 51, when the swing rod 48 swings, it can drive the mounting block 53 to move horizontally inside the second strip groove 52, thereby driving the nozzle 54 to move horizontally. The two horizontally reciprocating nozzles 54 can evenly and comprehensively blow air to the side to be welded and the side that has been welded, ensuring the dust cleaning effect and the cooling effect; When the bottom shell is rotated to ninety degrees, the other side of the bottom shell and the upper cover can be rotated to the working area, waiting for the next welding, and the above steps are repeated until the four sides of the bottom shell and the upper cover are welded, and the welding of the battery bottom shell and the upper cover is completed.

[0046] The beneficial effects of the present invention are specifically embodied in that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device for a battery metal casing, comprising a base (11), characterized in that: It also includes a vertical plate (33), a positioning mechanism, a rotating mechanism, a welding mechanism, a blowing mechanism and two fixing seats (12), wherein the two fixing seats (12) are fixedly mounted on the top of the base (11), and 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 comprises a driving assembly, two rotating drums (13), two annular plates (14) and a plurality of connecting rods (21), each rotating drum (13) is rotatably arranged in the middle of a fixed seat (12), the two annular plates (14) are respectively fixedly mounted on one side of the two rotating drums (13) close to each other, the plurality of connecting rods (21) are equidistantly fixed between the two annular plates (14), and the driving assembly is mounted between the base (11) and one of the rotating drums (13); The positioning mechanism comprises an electric suction cup (40), a pushing assembly, a rotating assembly, two telescopic assemblies and eight abutting plates (17), wherein each of the four abutting plates (17) is arranged in an annular shape and equidistantly in the middle of a rotating drum (13), each telescopic assembly is located between the annular plate (14) and the four abutting plates (17), the rotating assembly is located between the two annular plates (14) and the two telescopic assemblies, the electric suction cup (40) is located on a side of the vertical plate (33) close to the fixed seat (12), and the pushing assembly is located between the vertical plate (33) and the electric suction cup (40); The welding mechanism comprises a welding head (38) and a moving assembly. The welding head (38) is located at the top of the vertical plate (33) and close to one side of the fixed seat (12). The moving assembly is installed on between the vertical plate (33) and the welding head (38); The blowing mechanism comprises a transmission assembly, a conveying assembly, two nozzles (54), two mounting blocks (53), two second strip grooves (52) and two sliding assemblies, wherein the two second strip grooves (52) are symmetrically arranged on both sides of the vertical plate (33), each mounting block (53) is slidably arranged inside a second strip groove (52), each nozzle (54) is mounted on a side of a mounting block (53) close to a fixed seat (12), an output end of the conveying assembly is connected to an input end of the two nozzles (54), each sliding assembly is located between the vertical plate (33) and a mounting block (53), and the transmission assembly is located between a rotating drum (13) and the two sliding assemblies.

2. A welding device for a battery metal casing according to claim 1, characterized in that: The rotating assembly comprises a U-shaped frame (24), a first cylinder (25), a push plate (59) and two racks (23), wherein the U-shaped frame (24) is fixedly mounted on the top ends 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 mounted between one ends of the two racks (23), the first cylinder (25) is fixedly mounted 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).

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

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

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

6. A welding device for a battery metal casing according to claim 5, characterized in that: The transmission assembly comprises 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 a side of the vertical plate (33) away from the fixed seat (12); two driven wheels (43) are rotatably mounted on the two mounting seats (45), respectively; a rotating shaft (41) is rotatably mounted on the vertical plate (33); two driving wheels (42) are coaxial and both are fixed on 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 mounted on one end of the rotating shaft (41) away from the transmission belt (44); a second gear ring (31) is fixedly sleeved on a rotating drum (13) close to a side of the vertical plate (33); and the second gear ring (31) and the gear (32) are meshed with each other.

7. A welding device for a battery metal casing according to claim 6, characterized in that: Each sliding assembly comprises a rotating rod (46), a sliding sleeve (47), a swing rod (48), a swing shaft (49), a first strip groove (50) and a second insertion rod (51); One end of the swing rod (48) is rotatably arranged on one side of the vertical plate (33); a first strip groove (50) is provided at the other end of the swing rod (48); a second insertion rod (51) is inserted into the first strip groove (50) and one end of the second insertion rod (51) is fixedly connected to the mounting block (53); a swing shaft (49) is fixedly installed at one end of the swing rod (48) away from the first strip groove (50); a sliding sleeve (47) is slidingly sleeved on the swing shaft (49) via a sliding bearing; a rotating rod (46) is located on a side of the mounting seat (45) away from the driven wheel (43); one end of the rotating rod (46) is coaxial with and fixedly connected to the driven wheel (43); and the other end of the rotating rod (46) is hinged to the surface of the sliding sleeve (47).

8. A welding device for a battery metal casing according to claim 7, characterized in that: The conveying assembly comprises a fan (58), a main pipe (57), two branch pipes (56) and two hoses (55). The fan (58) is fixedly mounted on the top of the base (11). The output end of the fan (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 branch pipes (56). The other end of each branch 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).

9. A welding device for a battery metal casing according to claim 8, characterized in that: The moving assembly comprises 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); the moving block (37) is slidably arranged on the electric slide (35); the welding head (38) is fixedly mounted on one side of the moving block (37); the second cylinder (34) is fixedly mounted on one side of the vertical plate (33); and the output end of the second cylinder (34) is fixedly connected to the electric slide (35).

10. A welding device for a battery metal casing according to claim 9, 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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