Battery pole piece welding equipment

Abstract

The invention belongs to the technical field of electric arc welding, and particularly relates to battery pole piece welding equipment which comprises an equipment body, a supporting shell is fixed to the top end of the equipment body, a moving assembly is installed on one side in the supporting shell, a welding head is installed at the bottom end of the moving assembly, and a battery pack is arranged at the top end of the equipment body. First electric push rods are arranged on the two sides of the top end of the equipment body, push plates are fixed to the sides, close to the battery pack, of the first electric push rods, a first lifting cavity is formed in the top end of the equipment body, a lifting plate is slidably connected into the first lifting cavity, and second electric push rods are installed at the bottom end of the lifting plate. The bottom end of the second electric push rod is fixedly connected with the inner wall of the first lifting cavity. A battery pack is clamped through a push plate and a clamping plate, the battery pack can be automatically corrected in the clamping process, meanwhile, a second electric push rod drives a lifting plate to ascend and descend to enable the push plate to drive the battery pack to turn over, and the double faces of the battery pack can be welded more conveniently.

Description

Technical Field

[0001] The present invention belongs to the technical field of arc welding, and specifically relates to a battery electrode welding device. Background Art

[0002] A battery is a container for storing electrical energy. When power is required for some mobile devices, the battery is used for power supply. In order to ensure that the battery can supply power for a long time, multiple batteries are needed. Therefore, when the battery is processed, multiple batteries need to be connected together. At this time, a welding device is required to weld the electrodes of the batteries through the electrode plates.

[0003] A Chinese patent with the publication number CN219966721U discloses an automatic welding device for the positive and negative electrodes of a battery. The first adjustment component adjusts the distance between two sets of copper welding needles according to the distance between the positive electrode of battery A and the negative electrode of battery B in the battery pack, so that the two sets of copper welding needles are located directly above the positive electrode of battery A and the negative electrode of battery B, and thus it is applicable to weld battery packs with different diameters.

[0004] In the above technical solution during use, the positive and negative electrodes of two batteries need to be connected together by welding through the electrode plates. However, usually, a large number of batteries need to be welded. After welding the top end, the bottom end of the battery also needs to be welded. At this time, the battery pack needs to be turned over. Manually turning it over is prone to dropping due to the large weight of the battery pack, and it is easy to place it in the wrong direction, resulting in incorrect connection of the electrode plates to the batteries.

[0005] Therefore, the present invention provides a battery electrode welding device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems mentioned in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A battery electrode welding device of the present invention includes a device main body. A support shell is fixed to the top end of the device main body. A moving component is installed on one side inside the support shell. A welding head is installed at the bottom end of the moving component. A battery pack is arranged at the top end of the device main body; First electric push rods are arranged on both sides of the top end of the device main body. A push plate is fixed to the side of the first electric push rod close to the battery pack. A first lifting cavity is opened at the top end of the device main body. A lifting plate is slidably connected inside the first lifting cavity. A second electric push rod is installed at the bottom end of the lifting plate. The bottom end of the second electric push rod is fixed to the inner wall of the first lifting cavity; Among them, when the welding head finishes welding the top end of the battery pack, the second electric push rod drives the lifting plate to descend, which drives the push plate to rotate 180°, and the push plate drives the battery pack to turn over.

[0008] Preferably, connecting arms are fixed to both sides of the bottom end of the lifting plate. A connecting rod is fixed to the side of the connecting arm away from the lifting plate. A toothed plate is arranged inside the connecting rod. A connecting column is fixed to the end of the first electric push rod away from the push plate. A gear is fixed to the end of the connecting column away from the first electric push rod. The gear can mesh with the toothed plate. Second lifting cavities are formed on both sides of the first lifting cavity; Among them, when the lifting plate descends, the connecting rod is pulled through the connecting arm, and the toothed plate drives the connecting column to rotate 180° through the meshing of the toothed plate and the gear.

[0009] Preferably, an activity groove is formed at the top end of the connecting rod on the side close to the connecting column. A set of guiding sliding grooves are formed on both sides inside the activity groove. The toothed plate is slidably connected inside the activity groove. Slide columns are fixed to both sides of the toothed plate. The slide columns are slidably connected inside the guiding sliding grooves. A first spring is fixed to the side of the toothed plate away from the teeth. The other end of the first spring is slidably connected inside the activity groove; Among them, the guiding sliding grooves guide the slide columns. When the upper inclined surface of the teeth of the toothed plate is stressed, the toothed plate retracts into the activity groove.

[0010] Preferably, a support plate is rotatably connected to the outside of the connecting column. A telescopic shell is fixed to the top end of the connecting arm. A tension spring is fixed inside the telescopic shell. The tension spring is inserted into the inside of the bottom end of the support plate. The top end of the tension spring is fixedly connected to the support plate. Rotating grooves are formed on both sides of the top end of the equipment main body.

[0011] Preferably, positioning grooves are formed at the top and bottom ends of the connecting column. A positioning head is arranged above the positioning groove. A support frame is fixed to the top end of the positioning head. The other end of the support frame is fixedly connected to the top end of the equipment main body. The positioning groove can be inserted into the positioning head.

[0012] Preferably, steering arms are rotatably connected to both sides of the push plate. A clamping plate is fixed to one end of the steering arm. Two ejector rods are slidably connected inside the push plate. A top plate is arranged on the side of the push plate close to the battery pack. The top plate is fixedly connected to the two ejector rods. A storage groove is formed on the side of the push plate close to the battery pack; Among them, when the top plate slides into the storage groove, the ejector rod pushes the steering arm to rotate and drives the clamping plate to clamp the battery pack.

[0013] Preferably, torsion springs are fixed to both the top and bottom ends of the steering arm. The other ends of the torsion springs are fixedly connected to the push plate.

[0014] Preferably, a rotating column is rotatably connected to the top end of the equipment main body. A toothed ring is fixed to one side of the bottom end of the rotating column. A motor is arranged on one side of the rotating column. An output gear is fixed to the end of the rotating shaft of the motor. The output gear is meshed and connected with the toothed ring. Placing plates are arranged on both sides of the top end of the rotating column. Placing holes are formed inside the placing plates. The inside of the placing holes can place pole pieces; Among them, the two placing plates form an angle of 90° with respect to the axis of the rotating column.

[0015] Preferably, multiple sets of elastic pieces are fixed on both sides inside the placement hole, and the elastic pieces can be closely attached to the side surface of the pole piece.

[0016] Preferably, connecting sleeves are fixed on both sides of the top end of the rotating column. An expansion rod is slidably connected inside the connecting sleeve. One end of the expansion rod away from the connecting sleeve is fixedly connected to the placement plate. A second spring is fixed at the end of the expansion rod away from the placement plate, and the other end of the second spring is fixedly connected to the connecting sleeve.

[0017] The beneficial effects of the present invention are as follows: 1. For the battery pole piece welding equipment of the present invention, the battery pack is clamped by the pushing plate and the clamping plate, so that the battery pack can be automatically corrected during the clamping process. At the same time, the lifting plate is driven to rise and fall by the second electric push rod, and the pushing plate drives the battery pack to turn over, which can make it more convenient to weld both sides of the battery pack.

[0018] 2. For the battery pole piece welding equipment of the present invention, by providing two sets of placement plates and loading the pole pieces inside the placement holes, the welding head can directly perform welding during the welding process without separately placing the pole pieces, reducing the time consumed during welding. Description of the Drawings

[0019] The present invention will be further described below with reference to the drawings.

[0020] Figure 1 It is a schematic diagram when the battery pack of the present invention is placed; Figure 2 It is a schematic diagram when the battery pack of the present invention is not placed; Figure 3 It is a schematic diagram of the internal structure of the equipment main body of the present invention; Figure 4 It is a schematic diagram of the structure of the lifting plate of the present invention; Figure 5 It is a schematic diagram of the internal structure of the pushing plate of the present invention; Figure 6 It is a schematic diagram of the structure of the connecting arm of the present invention; Figure 7 It is a partial cross-sectional view of the connecting rod of the present invention; Figure 8 It is a schematic diagram of the structure of the toothed plate of the present invention; Figure 9 It is a schematic diagram of the structure of the placement plate of the present invention; Figure 10 It is Figure 9 The partial enlarged view at A in Figure 11 It is a schematic diagram of the internal structure of the connecting sleeve of the present invention.

[0021] In the figure: 1. Equipment main body; 11. Support shell; 12. Welding head; 13. Moving component; 14. First lifting cavity; 141. Second lifting cavity; 142. Rotating groove; 2. Battery pack; 3. Push plate; 31. First electric push rod; 311. Connecting column; 312. Positioning groove; 313. Support plate; 32. Lifting plate; 321. Second electric push rod; 322. Connecting arm; 323. Telescopic shell; 324. Tension spring; 33. Clamping plate; 331. Steering arm; 332. Coil spring; 333. Top plate; 334. Thrust rod; 335. Storage groove; 34. Support frame; 341. Positioning head; 35. Connecting rod; 351. Rack; 352. Guide chute; 353. Slide column; 354. Activity groove; 355. First spring; 4. Placing plate; 41. Placing hole; 411. Elastic sheet; 42. Connecting sleeve; 421. Telescopic rod; 422. Second spring; 43. Motor; 431. Tooth ring; 44. Rotating column. Specific implementation manner

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0023] As Figures 1 to 3 shown, a battery pole piece welding device according to an embodiment of the present invention includes an equipment main body 1. A support shell 11 is fixed to the top end of the equipment main body 1. A moving component 13 is installed on one side inside the support shell 11. A welding head 12 is installed at the bottom end of the moving component 13. A battery pack 2 is arranged at the top end of the equipment main body 1; First electric push rods 31 are arranged on both sides of the top end of the equipment main body 1. A push plate 3 is fixed to the side of the first electric push rod 31 close to the battery pack 2. A first lifting cavity 14 is formed in the top end of the equipment main body 1. A lifting plate 32 is slidably connected inside the first lifting cavity 14. A second electric push rod 321 is installed at the bottom end of the lifting plate 32. The bottom end of the second electric push rod 321 is fixedly connected to the inner wall of the first lifting cavity 14; Among them, when the welding head 12 finishes welding the top end of the battery pack 2, when the second electric push rod 321 drives the lifting plate 32 to descend, it drives the push plate 3 to rotate 180°, and the push plate 3 drives the battery pack 2 to turn over; During the use of the battery, in order to achieve a longer battery life, multiple batteries are usually welded into a battery pack 2. During welding, the battery cells are first inserted into the interior of the frame according to the preset positive and negative polarities, thus initially forming the battery pack 2. Subsequently, the battery pack 2 is placed on the top of the device main body 1 in the preset direction. At this time, the battery pack 2 is placed on the top of the lifting plate 32, and the second electric push rod 321 abuts against the lifting plate 32 to support the battery pack 2. Then, it is necessary to fix the battery pack 2. The first electric push rods 31 on both sides are started to push the battery pack 2 towards the middle of the device main body 1. When a pressure sensor is installed inside the push plate 3, when the sensors of the two push plates 3 reach the preset pressure value, the pushing of the first electric push rod 31 is stopped. At this time, the battery pack 2 can be fixed between the two push plates 3. Then, the pole piece is placed on the electrode tops of the two battery cells, and the welding head 12 welds the pole piece at the top of the battery pack 2. After welding, the pole piece will be fixed to the top of the battery cells of the battery pack 2. During the welding process, the moving component 13 can drive the welding head 12 to move to different welding positions. The inside of the moving component 13 is provided with x, y, and z-axis moving mechanisms, which can drive the welding head 12 to move forward and backward, left and right, and up and down, and drive the welding head 12 to displace according to the preset moving path for welding. At this time, the welding of the top of the battery pack 2 can be completed; Next, it is necessary to weld the bottom end of the battery pack 2. At this time, the second electric push rod 321 is started to drive the lifting plate 32 to move downward. At this time, the first electric push rod 31 is driven to rotate. The downward movement of the lifting plate 32 does not affect the first electric push rod 31 driving the push plate 3 to rotate. Then, the first electric push rod 31 drives the push plate 3 to rotate 180°. The two push plates 3 drive the battery pack 2 between them to flip. After flipping, the second electric push rod 321 pushes the lifting plate 32 to reset. During the reset process of the lifting plate 32, the first electric push rod 31 will not be driven to rotate. At this time, the pole piece is placed at the top electrode position of the battery pack 2. Then, according to the preset bottom welding path, the moving component 13 drives the welding head 12 to perform welding. After welding is completed, the first electric push rod 31 is started to pull the push plate 3 back to the reset position. At this time, the battery pack 2 loses its clamping force and the battery pack 2 can be removed. At this time, the welding can be completed. Through this method, the top and bottom of the battery pack 2 can be welded, and manual turning over is not required, reducing the error caused by manual operation.

[0024] As Figures 1 to 8 shown, connection arms 322 are fixed on both sides of the bottom end of the lifting plate 32. A connecting rod 35 is fixed on the side of the connection arm 322 away from the lifting plate 32. A toothed plate 351 is arranged inside the connecting rod 35. A connecting column 311 is fixed at the end of the first electric push rod 31 away from the push plate 3. A gear is fixed at the end of the connecting column 311 away from the first electric push rod 31. The gear and the toothed plate 351 can be meshed. Second lifting cavities 141 are opened on both sides of the first lifting cavity 14; Among them, when the lifting plate 32 descends, it pulls the connecting rod 35 through the connecting arm 322, and the toothed plate 351 drives the connecting column 311 to rotate 180° through the engagement of the toothed plate 351 with the gear; When the battery pack 2 needs to be turned over, the lifting plate 32 moves downward to drive the connecting arm 322 to move downward. At this time, the connecting arm 322 drives the connecting rod 35 to move downward. During the downward movement of the connecting rod 35, the toothed plate 351 moves synchronously. The toothed plate 351 moves downward and meshes with the gear of the connecting column 311. The toothed plate 351 drives the gear of the connecting column 311 to rotate 180°. At this time, the connecting column 311 drives the first electric push rod 31 to rotate 180°, so that the first electric push rod 31 drives the battery pack 2 to rotate 180° through the push plate 3 for turning over.

[0025] Such as Figures 1 to 8 As shown, a movable groove 354 is opened at the top of the side of the connecting rod 35 close to the connecting column 311. A set of guiding chutes 352 are opened on both sides inside the movable groove 354. The toothed plate 351 is slidably connected inside the movable groove 354. Slide columns 353 are fixed on both sides of the toothed plate 351. The slide columns 353 are slidably connected inside the guiding chutes 352. A first spring 355 is fixed on the side of the toothed plate 351 away from the teeth. The other end of the first spring 355 is slidably connected inside the movable groove 354; Among them, the guiding chute 352 guides the slide column 353. When the upper inclined surface of the teeth of the toothed plate 351 is stressed, the toothed plate 351 retracts into the movable groove 354; When the connecting rod 35 needs to drive the toothed plate 351 to move, during the descending process, the toothed plate 351 needs to be engaged with the gear of the connecting column 311, but during the ascending process, the toothed plate 351 does not need to be engaged with the gear of the connecting column 311. During the descending process, the connecting rod 35 pulls the toothed plate 351 downward. At this time, the first spring 355 pushes the toothed plate 351 to make the slide column 353 slide to the top of the guiding chute 352. At this time, the toothed plate 351 can be fixed, and the toothed plate 351 can drive the gear of the connecting column 311 to rotate. When the connecting rod 35 ascends, the gear of the connecting column 311 contacts the upper inclined surface of the teeth of the toothed plate 351. At this time, under the push of the inclined surface, the toothed plate 351 drives the slide column 353 to move obliquely downward. At this time, the guiding chute 352 can guide the slide column 353, so that the toothed plate 351 retracts into the movable groove 354. When the toothed plate 351 passes through the area of the gear of the connecting column 311, the first spring 355 will push the toothed plate 351 to pop out from the inside of the movable groove 354.

[0026] Such as Figures 1 to 6As shown, a support plate 313 is rotatably connected to the outside of the connecting column 311. A telescopic housing 323 is fixed to the top end of the connecting arm 322. A tension spring 324 is fixed inside the telescopic housing 323. The tension spring 324 is inserted into the inside of the bottom end of the support plate 313. The top end of the tension spring 324 is fixedly connected to the support plate 313. Rotating grooves 142 are formed on both sides of the top end of the equipment main body 1; When the first electric push rod 31 needs to rotate, a support is required. Therefore, when the connecting arm 322 descends, it will drive the telescopic housing 323 to move downward. At this time, due to the weight of components such as the battery pack 2 and the first electric push rod 31, the support plate 313 will be pushed downward. Subsequently, the first electric push rod 31 will enter the inside of the rotating groove 142. At this time, the first electric push rod 31 and the support plate 313 will stop moving under the action of the fibers in the rotating groove 142. When the support plate 313 descends synchronously with the connecting arm 322, the toothed plate 351 and the gear of the connecting column 311 remain stationary. At this time, the first electric push rod 31 will not rotate. When the first electric push rod 31 enters the inside of the rotating groove 142, the connecting arm 322 continues to move downward. At this time, the telescopic housing 323 extends out from the bottom end of the support plate 313 and stretches the tension spring 324. At the same time, the gear of the connecting column 311 does not move downward, while the toothed plate 351 is driven downward by the connecting rod 35 by the connecting arm 322, so that the toothed plate 351 can drive the gear of the connecting column 311 to rotate. Thus, after the push plate 3 drives the battery pack 2 into the first lifting cavity 14, and there will be a certain moving distance before the connecting rod 35 drives the toothed plate 351 to contact the gear of the connecting column 311, so that the lifting plate 32 can be separated from the battery pack 2 before the push plate 3 drives the battery pack 2 to turn over.

[0027] As Figures 1 to 6 As shown, positioning grooves 312 are formed at both the top end and the bottom end of the connecting column 311. A positioning head 341 is arranged above the positioning groove 312. The top end of the positioning head 341 is fixedly connected to a support frame 34. The other end of the support frame 34 is fixedly connected to the top end of the equipment main body 1. The positioning groove 312 can be inserted into the positioning head 341; When the first electric push rod 31 is in normal use, in order to ensure that the first electric push rod 31 drives the push plate 3 to maintain a horizontal state, a positioning groove 312 is formed on the side surface of the connecting column 311. When the first electric push rod 31 is driven to reset, the positioning head 341 will be inserted into the inside of the positioning groove 312. At this time, the positioning head 341 will be stuck inside the positioning groove 312, which can keep the positioning groove 312 in a stable state. And when there is a small angle deviation between the positioning groove 312 and the positioning head 341, the inclined surface of the positioning head 341 can correct the positioning groove 312, so as to keep the push plate 3 in a horizontal state.

[0028] As Figures 1 to 5As shown in the figure, steering arms 331 are rotatably connected to both sides of the push plate 3. A clamping plate 33 is fixed to one end of the steering arm 331. Two ejector rods 334 are slidably connected inside the push plate 3. A top plate 333 is arranged on the side of the push plate 3 close to the battery pack 2. The top plate 333 is fixedly connected to the two ejector rods 334. A storage groove 335 is formed on the side of the push plate 3 close to the battery pack 2. Among them, when the top plate 333 slides into the interior of the storage groove 335, the ejector rod 334 pushes the steering arm 331 to rotate, driving the clamping plate 33 to clamp the battery pack 2. During the process of the push plate 3 clamping the battery pack 2, the positions of the other two sides of the battery pack 2 may shift to a certain extent. Therefore, it is necessary to correct the other two sides of the battery pack 2. When the first electric push rod 31 pushes the push plate 3 close to the side of the battery pack 2, the top plate 333 contacts the battery pack 2 first. The battery pack 2 reversely pushes the top plate 333 to drive the ejector rod 334. When the ejector rod 334 is pushed, it synchronously pushes the steering arm 331 to rotate. When the steering arm 331 rotates, it drives the clamping plate 33 at the other end to rotate. After the top plate 333 moves into the interior of the storage groove 335, the steering arm 331 can push the clamping plates 33 on both sides to tightly adhere to the surface of the battery pack 2. At this time, the clamping plate 33 can complete the correction of the battery pack 2 and clamp the other two sides of the battery pack 2 at the same time.

[0029] As Figures 1 to 5 shown in the figure, torsion springs 332 are fixed to both the top and bottom ends of the steering arm 331. The other end of the torsion spring 332 is fixedly connected to the push plate 3. When the first electric push rod 31 drives the push plate 3 to release the battery pack 2, the elastic force of the torsion spring 332 can drive the steering arm 331 to rotate in the reverse direction. At this time, the steering arm 331 drives the clamping plate 33 to separate from the outside of the battery pack 2. The steering arm 331 simultaneously pushes the ejector rod 334, enabling the ejector rod 334 to drive the top plate 333 to move out of the interior of the storage groove 335 and reset for the next use.

[0030] As Figures 1 to 11 shown in the figure, a rotating column 44 is rotatably connected to the top end of the equipment main body 1. A toothed ring 431 is fixed to one side of the bottom end of the rotating column 44. A motor 43 is arranged on one side of the rotating column 44. An output gear is fixed to the end of the rotating shaft of the motor 43. The output gear is meshed with the toothed ring 431. Placing plates 4 are arranged on both sides of the top end of the rotating column 44. Placing holes 41 are formed inside the placing plates 4, and pole pieces can be placed inside the placing holes 41. Among them, the two placing plates 4 form a 90° angle with respect to the axis of the rotating column 44. During welding, the pole piece needs to be placed on the top of the electrode of the battery pack 2. To make welding more convenient, a placement plate 4 is set up. Two sets of pole pieces to be used are placed into the placement holes 41 of the two placement plates 4. During welding, first place the battery pack 2 on the top of the lifting plate 32, start the motor 43, drive the gear ring 431 to rotate through the output gear at the end, the gear ring 431 drives the rotating column 44 to rotate, and the rotating column 44 drives one of the placement plates 4 to move above the battery pack 2. At this time, when the welding head 12 moves downward for welding, it will push out the pole piece inside the placement hole 41 and press it on the top of the electrode of the battery pack 2 for welding; When the battery pack 2 is turned over, the motor 43 will drive the rotating column 44 to rotate 90°, and at this time, another placement plate 4 can be switched to rotate above the battery pack 2 to facilitate welding the bottom surface of the battery pack 2.

[0031] As Figures 1 to 11 shown, multiple sets of elastic pieces 411 are fixed on both sides inside the placement hole 41, and the elastic pieces 411 can be closely attached to the side of the pole piece; When the pole piece is placed inside the placement hole 41, the elastic pieces 411 on both sides will squeeze the side of the pole piece to fix it inside the placement hole 41. When the welding head 12 presses down on the pole piece, the elastic pieces 411 are squeezed and deformed, losing the thrust on the pole piece, so that the pole piece can fall off from inside the placement hole 41, thus facilitating the fixing of the pole piece and the dropping of the pole piece.

[0032] As Figures 1 to 11 shown, connection sleeves 42 are fixed on both sides of the top of the rotating column 44. A telescopic rod 421 is slidably connected inside the connection sleeve 42. One end of the telescopic rod 421 away from the connection sleeve 42 is fixedly connected to the placement plate 4, and a second spring 422 is fixed at the end of the telescopic rod 421 away from the placement plate 4. The other end of the second spring 422 is fixedly connected to the connection sleeve 42; During the front-side welding of the battery pack 2, the placement plate 4 is in the Figure 2 state. After the battery pack 2 is turned over, it is necessary to switch to another placement plate 4. The first placement plate 4 will turn to the inside of the support shell 11. To prevent the inside of the support shell 11 from interfering with the placement plate 4, the connection sleeve 42 is set up. After the placement plate 4 turns to the inside of the support shell 11, it will be squeezed by the support shell 11. At this time, the placement plate 4 pushes the telescopic rod 421, and the telescopic rod 421 squeezes the second spring 422 into the inside of the connection sleeve 42. The space inside the connection sleeve 42 allows the placement plate 4 to move to a position where it does not interfere with the inside of the support shell 11. When the rotating column 44 drives the placement plate 4 to reset, the elastic force of the second spring 422 will push the telescopic rod 421 to extend out of the connection sleeve 42, so that the placement plate 4 resets.

[0033] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery pole piece welding device, characterized in that: It includes a device main body, a support shell is fixed at the top end of the device main body, a moving component is installed on one side inside the support shell, a welding head is installed at the bottom end of the moving component, and a battery pack is arranged at the top end of the device main body; On both sides of the top end of the device main body, first electric push rods are arranged. A push plate is fixed on the side of the first electric push rod close to the battery pack. A first lifting cavity is opened at the top end of the device main body. A lifting plate is slidably connected inside the first lifting cavity. A second electric push rod is installed at the bottom end of the lifting plate, and the bottom end of the second electric push rod is fixedly connected to the inner wall of the first lifting cavity; Among them, when the welding head finishes welding the top end of the battery pack, when the second electric push rod drives the lifting plate to descend, it drives the push plate to rotate 180°, and the push plate drives the battery pack to turn over.

2. The battery electrode sheet welding device according to claim 1, characterized in that: On both sides of the bottom end of the lifting plate, connecting arms are fixed. On the side of the connecting arm far from the lifting plate, a connecting rod is fixed. A toothed plate is arranged inside the connecting rod. At the end of the first electric push rod far from the push plate, a connecting column is fixed. At the end of the connecting column far from the first electric push rod, a gear is fixed. The gear and the toothed plate can be meshed. Second lifting cavities are opened on both sides of the first lifting cavity; Among them, when the lifting plate descends, it pulls the connecting rod through the connecting arm, and the toothed plate drives the connecting column to rotate 180° through the meshing of the toothed plate and the gear.

3. The battery electrode sheet welding device according to claim 2, characterized in that: On the top end of the side of the connecting rod close to the connecting column, an activity groove is opened. On both sides inside the activity groove, a group of guiding chutes are opened. The toothed plate is slidably connected inside the activity groove. On both sides of the toothed plate, sliding columns are fixed. The sliding columns are slidably connected inside the guiding chutes. On the side of the toothed plate far from the teeth, a first spring is fixed, and the other end of the first spring is slidably connected inside the activity groove; Among them, the guiding chutes guide the sliding columns. When the upper inclined surface of the teeth of the toothed plate is stressed, the toothed plate retracts into the activity groove.

4. The battery electrode sheet welding device according to claim 2, wherein: The outside of the connecting column is rotatably connected with a support plate. The top end of the connecting arm is fixed with a telescopic shell. A tension spring is fixed inside the telescopic shell. The tension spring is inserted into the inside of the bottom end of the support plate, and the top end of the tension spring is fixedly connected with the support plate. Rotating grooves are opened on both sides of the top end of the device main body.

5. The battery pole piece welding device according to claim 4, characterized in that: Positioning grooves are opened at the top end and the bottom end of the connecting column. Above the positioning grooves, positioning heads are arranged. The top end of the positioning head is fixed with a support frame, and the other end of the support frame is fixedly connected with the top end of the device main body. The positioning grooves can be inserted with the positioning heads.

6. The battery pole piece welding device according to claim 1, characterized in that: On both sides of the push plate, turning arms are rotatably connected. At one end of the turning arm, a clamping plate is fixed. Two ejector rods are slidably connected inside the push plate. On the side of the push plate close to the battery pack, a top plate is arranged. The top plate is fixedly connected with the two ejector rods. A receiving groove is opened on the side of the push plate close to the battery pack; Among them, when the top plate slides into the receiving groove, the ejector rod pushes the turning arm to rotate and drives the clamping plate to clamp the battery pack.

7. The battery electrode sheet welding device according to claim 6, wherein: On the top end and the bottom end of the turning arm, torsion springs are fixed, and the other end of the torsion spring is fixedly connected with the push plate.

8. A battery electrode welding device according to claim 1, characterized in that: A rotating column is rotatably connected to the top end of the device main body. On one side of the bottom end of the rotating column, a toothed ring is fixed. On one side of the rotating column, a motor is arranged. The end of the rotating shaft of the motor is fixed with an output gear, and the output gear is meshed and connected with the toothed ring. On both sides of the top end of the rotating column, placing plates are arranged. Placing holes are opened inside the placing plates, and pole pieces can be placed inside the placing holes; Among them, the two placing plates form a 90° angle with respect to the axis of the rotating column.

9. The battery electrode welding device according to claim 8, characterized in that: A plurality of elastic pieces are fixed on both sides inside the placement hole, and the elastic pieces can be closely attached to the side surface of the pole piece.

10. A battery electrode welding device according to claim 8, characterized in that: Connection sleeves are fixed on both sides of the top of the rotating column. A telescopic rod is slidably connected inside the connection sleeve. One end of the telescopic rod away from the connection sleeve is fixedly connected to the placement plate. A second spring is fixed at the end of the telescopic rod away from the placement plate, and the other end of the second spring is fixedly connected to the connection sleeve.

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