A battery cell shaping machine

Abstract

The present invention discloses an integrated battery cell shaping machine, comprising a frame, a tab shaping device and a loading and unloading device arranged on the frame. The tab shaping device is used to fold and shape the tabs of the battery cells. The machine also comprises a pre-pressing device, a swinging plate device, and a hot pressing device, the pre-pressing device, the swinging plate device, and the hot pressing device being arranged sequentially along the X-axis direction. The pre-pressing device is used to pre-press and shape the battery cells. The swinging plate device is used to place a long plate and to push the long plate with the battery cells placed thereon to the hot pressing device. The loading and unloading device is used to absorb the folded and shaped battery cells and transport them to the pre-pressing device, and to absorb the pre-pressed and shaped battery cells and transport them to the top of the long plate of the swinging plate device. The hot pressing device is used to hot press and shape the battery cells. The present invention improves production efficiency and reduces production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium-ion battery production, and in particular to an all-in-one battery cell shaping machine. Background Art

[0002] In the lithium-ion battery production process, after the positive and negative electrodes are produced, they are assembled with the separator by winding to form the basic battery cell. Subsequently, the battery cell is generally folded and shaped by the tabs and the overall shaping of the battery cell. The overall shaping of the battery cell is generally divided into pre-pressing and hot pressing. By folding and shaping the tabs, pre-pressing and hot pressing, the flatness and thickness of the tabs and the battery cell can be guaranteed to meet the requirements, and the separator wrinkles can be eliminated and the air inside the battery cell can be expelled, so that the separator and the positive and negative electrodes are tightly fitted together.

[0003] The current battery cell tab shaping equipment usually includes a frame and a tab shaping device and a loading and unloading device arranged on the frame. The tab shaping device is used to fold and shape the tabs of the battery cell, and the loading and unloading device is used to absorb the folded and shaped battery cell and transport the absorbed battery cell to a swing plate. This type of equipment can only fold and shape the tabs of the battery cell, and cannot pre-press and shape the folded and shaped battery cell. After the tabs of the battery cell are folded and shaped and the battery cell is transported to the swing plate, the battery cell on the swing plate needs to be placed manually on other pre-pressing equipment and hot pressing equipment in turn, which reduces production efficiency and increases production costs. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides an all-in-one battery cell shaping machine, which improves production efficiency and reduces production costs.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A battery cell shaping machine includes a frame and a tab shaping device and a loading and unloading device arranged on the frame, the tab shaping device is used to fold and shape the tabs of the battery cell, and also includes a pre-pressing device, a swing plate device and a hot pressing device, the pre-pressing device, the swing plate device and the hot pressing device are arranged in sequence along the X-axis direction, the pre-pressing device is used to pre-press and shape the battery cell, the swing plate device is used to place a long plate and to push the long plate with the battery cell placed to the hot pressing device, the loading and unloading device is used to absorb the folded and shaped battery cell and transport the absorbed battery cell to the pre-pressing device, and is used to absorb the pre-pressed and shaped battery cell and transport the absorbed battery cell to the top of the long plate of the swing plate device, and the hot pressing device is used to hot press and shape the battery cell.

[0007] The beneficial effects of the present invention are as follows: the present invention can place a long board through the set swing plate device, and can absorb the folded and shaped battery cells through the loading and unloading device and transport the absorbed battery cells to the pre-pressing device for pre-pressing and shaping, and absorb the pre-pressed and shaped battery cells and transport the absorbed battery cells to the top of the long board of the swing plate device, and the long board with the battery cells placed thereon can be pushed to the hot pressing device through the swing plate device, so that the battery cells can be hot pressed by the hot pressing device. In this way, the present invention can realize the pre-pressing and hot pressing of the folded and shaped battery cells, with a high degree of automation, improved production efficiency and reduced production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention will be further described below with reference to the accompanying drawings and examples.

[0009] Figure 1 This is a structural diagram of a battery cell shaping integrated machine provided by one embodiment of the present invention;

[0010] Figure 2 yes Figure 1 A schematic structural diagram of the pre-pressing device of the battery cell shaping machine shown;

[0011] Figure 3 yes Figure 2 The schematic diagram of the structure of the pre-pressing device shown is a schematic diagram of the structure of the pre-pressing device after removing the press frame, presser and first press drive unit;

[0012] Figure 4 yes Figure 1 The schematic diagram of the structure of the loading and unloading device of the battery cell shaping machine shown;

[0013] Figure 5 yes Figure 4 The schematic diagram of the structure of the loading and unloading device shown is after removing the loading and unloading bracket and the first loading and unloading drive unit;

[0014] Figure 6 yes Figure 1 A schematic structural diagram of the plate-stirring device of the battery cell shaping machine shown;

[0015] Figure 7 yes Figure 6 A schematic diagram of the structure of the swing plate mechanism and the moving mechanism of the swing plate device after removing the movable protective cover;

[0016] Figure 8 yes Figure 6 A schematic structural diagram of the swing plate mechanism of the swing plate device shown;

[0017] Figure 9 yes Figure 6 The schematic diagram of the structure of the propulsion mechanism of the wobble plate device is shown with the propulsion protection cover removed;

[0018] Figure 10 yes Figure 1 A schematic structural diagram of a hot pressing device of a battery cell shaping machine from a first angle;

[0019] Figure 11 yes Figure 1 A schematic structural diagram of the hot pressing device of the battery cell shaping machine from a second angle is shown.

[0020] Figure Number:

[0021] 10. Rack;

[0022] 20. Pre-pressing device; 22. Pressing frame; 24. Presser; 26. Container; 262. Base; 2622. Base slider; 2623. Base slide rail; 263. Support seat; 2632. Stopper; 264. Container; 27. First press drive unit; 28. Second press drive unit;

[0023] 30. Loading and unloading device; 32. Loading and unloading bracket; 34. Loading and unloading drive mechanism; 342. First loading and unloading drive unit; 343. Drive unit mounting plate; 344. Second loading and unloading drive unit; 345. Driving wheel; 346. Synchronous belt; 36. Loading and unloading mechanism; 362. Fixed seat; 3622. Fixed seat mounting plate; 36222. Mounting plate slider; 36223. Mounting plate slide rail; 3632. Connecting rod; 3633. Seat body; 3634. Air connection pipe; 3635. Suction cup;

[0024] 40. Plate setting device;

[0025] 42. Moving mechanism; 422. Plate placement plate; 4222. Placement slot; 4223. Moving protective cover; 423. Connecting member; 4232. Connecting member slider; 4233. Connecting member slide rail; 424. Fixing member; 4242. Connecting column; 4243. Guide hole; 425. First moving drive unit; 426. Second moving drive unit;

[0026] 44. Swing plate mechanism; 442. Swing plate; 4422. Avoidance position; 443. Swing plate drive unit; 444. Swing plate slider; 445. Swing plate slide rail; 446. Slide rail seat;

[0027] 46. ​​Propulsion mechanism; 462. Bracket; 4622. Propulsion protection cover; 4623. Propulsion rail; 4624. Propulsion slider; 463. Propulsion booster; 4632. First mounting block; 46322. Fixed block; 4633. Second mounting block; 4634. Propulsion booster; 464. Propulsion drive unit; 465. Driving wheel; 466. Driven wheel; 467. Conveyor belt;

[0028] 50. Hot pressing device;

[0029] 52. Hot pressing mechanism; 522. Lower plate; 5222. Lower hot pressing plate; 5224. Transition plate; 52242. Limit block; 524. Moving plate; 5242. Mounting rod; 5243. Linear bearing; 5244. Upper hot pressing plate; 526. Upper plate;

[0030] 54. Hot-pressing drive mechanism; 542. Hot-pressing drive unit; 544. Pressure regulating valve;

[0031] 56, limit mechanism; 562, stand; 5622, photoelectric sensor switch; 564, photoelectric sensor sheet; 566, sensor;

[0032] 100. Longboard;

[0033] 102. Battery cell. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interactively without conflicting with each other.

[0035] Please refer to Figure 1 An embodiment of the present invention provides an integrated battery cell shaping machine, comprising a frame 10, a tab shaping device (not shown), a pre-pressing device 20, a loading and unloading device 30, a swing plate device 40, and a hot pressing device 50 disposed on the frame 10. The tab shaping device is used to fold and shape the tabs of the battery cell 102. The end of the tab shaping device is located between the container 26 of the pre-pressing device 20 and the swing plate device 40. The pre-pressing device 20, the swing plate device 40, and the hot pressing device 50 are arranged sequentially along the X-axis. The pre-pressing device 20 is used to pre-press and shape the battery cell 102, the loading and unloading device 30 is used to absorb the folded and shaped battery cell 102 and transport the absorbed battery cell 102 to the pre-pressing device 20, and is used to absorb the pre-pressed and shaped battery cell 102 and transport the absorbed battery cell 102 to the top of the long plate 100 of the swinging device 40, the long plate 100 is used to place the battery cell 102, the swinging device 40 is used to place the long plate 100 and is used to push the long plate 100 with the battery cell 102 placed to the hot pressing device 50, and the hot pressing device 50 is used to hot press and shape the battery cell 102.

[0036] The present invention does not improve the structure of the tab shaping device. The tab shaping device is an existing structure, and the structure and working principle of the tab shaping device are not described here. Figure 1 Not shown.

[0037] Please refer to Figures 1 to 3 The pre-pressing device 20 includes a press frame 22, a press hopper 24, a container 26 for placing the battery cell 102, a first press drive unit 27, and a second press drive unit 28. The press hopper 24 is arranged in the press frame 22, and the container 26 is slidably arranged on the frame 10 and located between the swing plate device 40 and the press frame 22. The first press drive unit 27 is preferably a cylinder, and the first press drive unit 27 is arranged at the top of the press frame 22. The output end of the first press drive unit 27 passes through the through hole of the press frame 22 and extends into the press frame 22, and is connected to the press hopper 24. The second press drive unit 28 is preferably a cylinder, and the second press drive unit 28 is arranged on the frame 10 and passes through the press frame 22. The output end of the second press drive unit 28 is connected to the container 26. The press hopper 24 is located above the container 26. The second pressing drive unit 28 is used to drive the container 26 to move closer to or away from the press 24 along the X-axis direction, and the first pressing drive unit 27 is used to drive the press 24 to move closer to or away from the container 26 along the Z-axis direction. When the container 26 is loaded with a battery cell 102 and moves to the bottom of the press 24, the first pressing drive unit 27 drives the press 24 to move closer to the container 26 along the Z-axis direction, thereby squeezing the battery cell 102 and pre-pressing and shaping the battery cell 102.

[0038] In this embodiment, the container 26 includes a base 262, a support base 263, and a container frame 264. The base 262 is slidably mounted on the frame 10. Specifically, a base slider 2622 is provided at the bottom end of the base 262. The base slider 2622 slidably engages with a base rail 2623. The base rail 2623 extends along the X-axis, and the base slider 2622 can slide along the base rail 2623 along the X-axis. Thus, the base 262 is slidably mounted on the frame 10 via the base slider 2622 and the base rail 2623. The arrangement of the base slider 2622 and the base rail 2623 improves the stability of the movement of the container 26 along the X-axis. The output end of the second pressing drive unit 28 is connected to the base 262. The support base 263 is disposed at the top of the base 262. A stopper 2632 is provided on the side of the top of the support base 263 near the wobble device 40. The material storage rack 264 is disposed at the top of the support base 263. One end of the material storage rack 264 abuts against the stopper 2632, and the other end protrudes from the end of the support base 263 away from the wobble plate device 40. The material storage rack 264 has a plurality of storage positions arranged sequentially along the Y-axis direction. In this embodiment, the number of storage positions is five, that is, the present invention can achieve pre-pressing and shaping of five battery cells 102 at a time. It can be understood that the number of storage positions can be set according to actual conditions.

[0039] A hot pressing rod is provided in the support seat 263 of the container 26, or a hot pressing rod is provided in the press 24. After the hot pressing rod is heated, the heat can be transferred to the battery cell 102, thereby achieving pre-pressing and shaping of the battery cell 102.

[0040] Please refer to Figure 1 、 Figure 4 and Figure 5 The loading and unloading device 30 includes a loading and unloading bracket 32 ​​provided on the frame 10, a loading and unloading drive mechanism 34 provided on the loading and unloading bracket 32, and a loading and unloading mechanism 36. The loading and unloading mechanism 36 is located above the container 26. The loading and unloading bracket 32 ​​is located behind the pre-pressing device 20 in the Y-axis direction.

[0041] The loading and unloading drive mechanism 34 includes a first loading and unloading drive unit 342, a drive unit mounting plate 343, a second loading and unloading drive unit 344, and a synchronous belt assembly. The first loading and unloading drive unit 342 is preferably a linear module, which is a conventional structure. The first loading and unloading drive unit 342 is mounted on the top of the loading and unloading bracket 32. The drive unit mounting plate 343 is mounted on the side of the first loading and unloading drive unit 342 near the preloading device 20. The second loading and unloading drive unit 344 is preferably a motor. It is mounted on the side of the drive unit mounting plate 343 near the first loading and unloading drive unit 342, and its output end is disposed through the drive unit mounting plate 343. The synchronous belt assembly is mounted on the side of the drive unit mounting plate 343 away from the first loading and unloading drive unit 342. It includes a driving pulley 345, a driven pulley (not shown), and a synchronous belt 346 that is sleeved around the outer circumferences of the driving and driven pulleys. The driving pulley 345 is sleeved on the output end of the second loading and unloading drive unit 344, while the driven pulley is rotatably mounted on the side of the drive unit mounting plate 343 away from the first loading and unloading drive unit 342 and positioned below the driving pulley 345. The first loading and unloading drive unit 342 is used to drive the drive unit mounting plate 343 back and forth along the X-axis. The second loading and unloading drive unit 344 and the synchronous belt assembly can move synchronously with the drive unit mounting plate 343.

[0042] The loading and unloading mechanism 36 includes a fixed seat 362 and multiple loading and unloading units. The synchronous belt 346 is connected to the fixed seat mounting plate 3622. The fixed seat 362 is arranged on the side of the fixed seat mounting plate 3622 away from the drive unit mounting plate 343. The multiple loading and unloading units are arranged in sequence along the Y-axis direction and correspond to the multiple storage positions of the container 26. The top ends of the multiple loading and unloading units are all arranged on one side of the fixed seat 362, such as the side of the fixed seat 362 close to the swing plate device 40. The bottom ends of the multiple loading and unloading units are all located below the fixed seat 362. The loading and unloading units are used to absorb the battery cells 102. The second loading and unloading drive unit 344 is used to drive the driving wheel 345 to rotate, thereby driving the fixed seat mounting plate 3622 to move back and forth along the Z-axis direction through the driven wheel and synchronous belt 346, thereby driving the fixed seat 362 to move synchronously. When the second loading and unloading drive unit 344 and the synchronous belt assembly move synchronously with the drive unit mounting plate 343, they can drive the fixed seat mounting plate 3622 and the fixed seat 362 to move synchronously. In this way, the loading and unloading drive mechanism 34 can drive the fixed seat 362 to move back and forth along the X-axis direction and can drive the fixed seat 362 to move back and forth along the Z-axis direction. Multiple loading and unloading units can move synchronously with the fixed seat 362.

[0043] The fixed seat mounting plate 3622 is slidably connected to the drive unit mounting plate 343. Specifically, a mounting plate slider 36222 is provided on the side of the fixed seat mounting plate 3622 adjacent to the drive unit mounting plate 343. The mounting plate slider 36222 slidably cooperates with the mounting plate slide rail 36223, which extends along the Z-axis. Thus, the fixed seat mounting plate 3622 is slidably connected to the drive unit mounting plate 343 via the mounting plate slider 36222 and the mounting plate slide rail 36223. The provision of the mounting plate slider 36222 and the mounting plate slide rail 36223 improves the smooth movement of the fixed seat mounting plate 3622 along the Y-axis. The number of mounting plate sliders 36222 and mounting plate slide rails 36223 can be set according to actual conditions.

[0044] In this embodiment, the number of loading and unloading units corresponds to the material capacity level, which is also five. It can be understood that the number of loading and unloading units can be set according to actual conditions.

[0045] The loading and unloading unit is a suction cup type structure. Specifically, the loading and unloading unit includes a connecting rod 3632, a base 3633, an air receiving pipe 3634, and a suction cup 3635. The top of the connecting rod 3632 is set on one side of the fixed base 362, and the bottom of the connecting rod 3632 is located below the fixed base 362 and is provided with the base 3633. The air receiving pipe 3634 is set through the base 3633. One end of the air receiving pipe 3634 is provided with a suction cup 3635 for sucking the battery cell 102. The other end of the air receiving pipe 3634 is used to connect to an external negative pressure system. When the suction cup 3635 sucks the battery cell 102, the external negative pressure system evacuates the suction cup 3635, so that the suction cup 3635 can suck the battery cell 102. The external negative pressure system stops evacuating the suction cup 3635, so that the suction cup 3635 can release the battery cell 102. The use of a suction cup structure to absorb the battery cell 102 will not damage the battery cell 102. In this embodiment, there are two suction cups 3635. It can be understood that the number of suction cups 3635 can be set according to actual conditions.

[0046] It is understandable that the loading and unloading unit may also be, for example, a gripper structure, etc. The gripper structure may be, for example, a pneumatic finger.

[0047] Please refer to Figure 1 and Figure 6 The swing plate device 40 includes a moving mechanism 42, a swing plate mechanism 44 and a propulsion mechanism 46 which are sequentially arranged along the Y-axis direction.

[0048] Combine Figure 7 and Figure 8 As shown, the swing plate mechanism 44 includes a swing plate 442 and a swing plate driving unit 443 .

[0049] The wobble plate 442 is used to place the long plate 100. The loading and unloading device 30 is used to absorb the pre-pressed and shaped battery cells 102 and place them on top of the long plate 100 on the wobble plate 442. The wobble plate drive unit 443 is mounted on the frame 10 and located below the wobble plate 442. The wobble plate drive unit 443 is connected to the bottom end of the wobble plate 442 and is used to drive the wobble plate 442 toward or away from the propulsion mechanism 46 along the Y-axis. The wobble plate drive unit 443 is preferably a motor-driven linear slide module, but it can also be a hydraulic cylinder or pneumatic cylinder, for example.

[0050] In this embodiment, the wobble plate 442 is slidably connected to the frame 10. Specifically, two wobble plate sliders 444 are provided on either side of the bottom end of the wobble plate 442. The two wobble plate sliders 444 slidably engage with two wobble plate rails 445, respectively. The two wobble plate rails 445 extend along the Y-axis. The two wobble plate rails 445 are respectively mounted on two rail seats 446. The two wobble plate sliders 444 can slide on the two wobble plate rails 445, respectively. Thus, the wobble plate 442 is slidably connected to the frame 10 via the two wobble plate sliders 444 and the two wobble plate rails 445. It is understood that the number of wobble plate sliders 444 and the number of wobble plate rails 445 can be adjusted according to actual conditions. The provision of the wobble plate sliders 444 and the number of wobble plate rails 445 can improve the smooth movement of the wobble plate 442 along the Y-axis.

[0051] The moving mechanism 42 includes two placement plates 422 for placing the long board 100, and a moving drive assembly positioned between the two placement plates 422. The two placement plates 422 are spaced apart along the X-axis and are both mounted on the frame 10. When a long board 100 is placed on top of the placement plates 422, the moving drive assembly drives the long board 100 along the Y-axis toward the wobble plate 442, thereby transporting the long board 100 to the top of the wobble plate 442. It is understood that the number of placement plates 422 can also be other, and can be set according to actual circumstances.

[0052] The two placement plates 422 are symmetrically arranged. A placement groove 4222 is provided at the top of the placement plate 422. The bottom of the placement groove 4222 is preferably flush with the top of the swing plate 442. The placement grooves 4222 of the two placement plates 422 are used to place the long board 100. The placement grooves 4222 are convenient for placing the long board 100, saving time and effort.

[0053] It is understandable that in other embodiments, the placement groove 4222 may not be provided on the top of the placement plate 422 .

[0054] The mobile driving assembly includes a connecting member 423 , a fixing member 424 disposed on a top end of the connecting member 423 , a first mobile driving unit 425 and a second mobile driving unit 426 disposed on the frame 10 .

[0055] The first mobile drive unit 425 and the second mobile drive unit 426 are preferably pneumatic cylinders, but may also be hydraulic cylinders, for example. The first mobile drive unit 425 and the connector 423 are located below the wobble plate 442, with the first mobile drive unit 425 partially located between the two slide rails 446. One end of the connector 423 is connected to the output end of the first mobile drive unit 425, and the other end is provided with the second mobile drive unit 426. The fixed member 424 is Z-shaped, comprising a first transverse portion, a second transverse portion, and a vertical portion. The first transverse portion is provided with a guide hole 4243. The top end of the connector 423 is provided with a guide post that slidably engages with the guide hole 4243. The second transverse portion is located above the connector 423. The second mobile drive unit 426 is located below the connector 423. The output end of the second mobile drive unit 426 passes through a through-hole at the corresponding end of the connector 423 and connects to the second transverse portion of the fixed member 424. When the long board 100 is placed on the top of the two plate blocks 422, the fixing member 424 is located below the long board 100, and the second moving drive unit 426 is used to drive the fixing member 424 to move closer to or away from the long board 100 relative to the connecting member 423 along the Z-axis direction. The top of the second horizontal part of the fixing member 424 is provided with a connecting column 4242 for cooperating with the through hole of the long board 100. When the fixing member 424 moves close to the long board 100 along the Z-axis direction, the connecting column 4242 can cooperate with the through hole of the long board 100, so that the fixing member 424 and the long board 100 can be connected together. The first mobile drive unit 425 is used to drive the connecting member 423 to move close to or away from the wobble plate 442 along the Y-axis direction. The fixing member 424 and the second mobile drive unit 426 can move synchronously with the connecting member 423. When the fixing member 424 and the long board 100 are connected together, the fixing member 424 can drive the long board 100 to move to the top of the wobble plate 442, thereby realizing the transportation of the long board 100 to the top of the wobble plate 442.

[0056] The provision of the guide holes 4243 and the guide posts can improve the stability of the movement of the fixing member 424 along the Z-axis. In this embodiment, the number of the guide holes 4243, the guide posts, and the connecting posts 4242 is two. It can be understood that the number and position of the guide holes 4243, the guide posts, and the connecting posts 4242 can be set according to actual conditions.

[0057] In this embodiment, the connector 423 is slidably connected to the frame 10. Specifically, a connector slider 4232 is provided at the bottom end of the connector 423. The connector slider 4232 slidably cooperates with a connector slide rail 4233. The connector slide rail 4233 is provided on the frame 10 and extends along the Y-axis. The connector slider 4232 can slide along the connector slide rail 4233, thereby slidably connecting the connector 423 to the frame 10 via the connector slider 4232 and the connector slide rail 4233. The provision of the connector slider 4232 and the connector slide rail 4233 can improve the smooth movement of the connector 423 along the Y-axis.

[0058] In this embodiment, a movable protective cover 4223 is provided on the side of the plate 422 located on the left side of the X-axis direction and close to the plate 422 located on the right side of the X-axis direction. Figure 6 As shown, one end of the connecting member 423 connected to the first mobile drive unit 425 and part of the first mobile drive unit 425 are located in the mobile protective cover 4223 , and the provided mobile protective cover 4223 protects the first mobile drive unit 425 .

[0059] A clearance position 4422 is provided on one side of the swing plate 442 close to the moving mechanism 42, and the clearance position 4422 corresponds to the fixing part 424. When the long board 100 is placed on the top of the two placement plates 422, and the fixing part 424 is moved to the predetermined position under the movement of the connecting part 423, the fixing part 424 is located in the clearance position 4422, and the long board 100 is just located at the top of the swing plate 442.

[0060] Combine Figure 9 As shown, the propulsion mechanism 46 includes a bracket 462 mounted on the frame 10 and extending along the Z-axis, a propulsion drive assembly mounted on the bracket 462, and a booster 463 connected to the propulsion drive assembly. The bracket 462 is located within the loading and unloading bracket 32. The wobble plate 442 is located between the booster 463 and the hot pressing device 50. The propulsion drive assembly is used to drive the booster 463 to move toward or away from the hot pressing device 50 along the X-axis. The booster 463 is used to push the long board 100 with the battery cells 102 placed on top of the wobble plate 442 toward the hot pressing device 50.

[0061] The propulsion drive assembly includes a propulsion drive unit 464 disposed on the bracket 462 and a transmission unit connected to the propulsion drive unit 464. The booster 463 is connected to the transmission unit, and the propulsion drive unit 464 is used to drive the booster 463 to move toward or away from the hot pressing device 50 along the X-axis direction through the transmission unit.

[0062] Specifically, the propulsion drive unit 464 is preferably a motor. The propulsion drive unit 464 is disposed on a side of the bracket 462 away from the wobble plate mechanism 44 and near one end of the bracket 462. The output end of the propulsion drive unit 464 extends through the bracket 462. The transmission unit includes a driving wheel 465, a driven wheel 466, and a conveyor belt 467 that is sleeved around the driving wheel 465 and the driven wheel 466. The driving wheel 465 is sleeved around the output end of the propulsion drive unit 464. The driven wheel 466 is rotatably disposed on a side of the bracket 462 near the wobble plate mechanism 44 and near the end of the bracket 462 away from the propulsion drive unit 464. The booster 463 is connected to the conveyor belt 467. The propulsion drive unit 464 is used to drive the driving wheel 465 to rotate. The rotation of the driving wheel 465 drives the driven wheel 466 and the conveyor belt 467 to rotate. The rotation of the conveyor belt 467 drives the booster 463 to move toward or away from the hot pressing device 50 along the X-axis.

[0063] In this embodiment, the booster 463 includes a first mounting block 4632, two L-shaped second mounting blocks 4633, and an L-shaped booster 4634. A fixed block 46322 is provided at the top of the first mounting block 4632. The conveyor belt 467 is clamped between the fixed block 46322 and the top of the first mounting block 4632. Fixed block teeth are provided at the bottom of the fixed block 46322. These teeth engage with the teeth of the conveyor belt to achieve relative fixation between the two, thereby connecting the booster 463 to the conveyor belt 467 via the fixed block 46322. The first mounting block 4632 has a first tooth at its top, and a second tooth at its bottom that engages with the first tooth. The arrangement of the first and second teeth ensures that the fixed block 46322 does not move relative to the first mounting block 4632. Two second mounting blocks 4633 are sequentially arranged on the side of the first mounting block 4632 near the swing plate mechanism 44. The two second mounting blocks 4633 form an L-shaped structure. The second mounting block 4633, which is farther away from the first mounting block 4632, has a booster block 4634 on its side near the swing plate mechanism 44. The bottom end of the booster block 4634 is preferably flush with the top of the swing plate 442. The booster block 4634 is used to push the long board 100 with the battery cells 102 placed on the top of the swing plate 442 into the hot pressing device 50. It is understood that the two second mounting blocks 4633 can also be replaced by a single L-shaped component, or the two second mounting blocks 4633 can be a single, integrally formed piece. The first mounting block 4632, the two second mounting blocks 4633, and the booster block 4634 can be integrally formed.

[0064] The booster 463 is slidably connected to the bracket 462 and can move relative to the bracket 462 toward or away from the hot pressing device 50 along the X-axis. Specifically, a push rail 4623 extending along the X-axis is provided on the side of the bracket 462 proximal to the swing plate mechanism 44. The push rail 4623 is located below the conveyor belt 467. A push slider 4624 is provided on the side of the first mounting block 4632 of the booster 463 distal to the swing plate mechanism 44. The push slider 4624 slidably engages with the push rail 4623 and can slide on the push rail 4623. Thus, the booster 463 is slidably connected to the bracket 462 via the push slider 4624 and the push rail 4623. The provision of the push slider 4624 and the push rail 4623 improves the smooth movement of the booster 463 along the X-axis.

[0065] Furthermore, a propulsion protection cover 4622 is provided on one side of the bracket 462 near the swing plate mechanism 44. The output end and transmission assembly of the propulsion drive unit 464 are located within the propulsion protection cover 4622. The top end of the first mounting block 4632 passes through a through hole in the propulsion protection cover 4622 and is located within the propulsion protection cover 4622. The provided propulsion protection cover 4622 protects the output end and transmission assembly of the propulsion drive unit 464.

[0066] Please refer to Figure 1 、 Figure 10 and Figure 11 The hot pressing device 50 includes a hot pressing mechanism 52 , a hot pressing driving mechanism 54 and a limiting mechanism 56 .

[0067] The hot pressing mechanism 52 includes a lower plate 522, a movable plate 524, and an upper plate 526, which are arranged in sequence along the Z-axis. The lower plate 522 is arranged on the frame 10. The movable plate 524 is provided with a mounting rod 5242, and the two ends of the mounting rod 5242 are respectively connected to the lower plate 522 and the upper plate 526. A lower hot pressing plate 5222 is provided on the side of the lower plate 522 close to the movable plate 524, and a hot pressing rod is provided in the lower hot pressing plate 5222. An upper hot pressing plate 5244 is provided on the side of the movable plate 524 close to the lower plate 522, and the upper hot pressing plate 5244 corresponds to the lower hot pressing plate 5222. A transition plate 5224 is provided on the side of the lower hot press plate 5222 near the wobble plate assembly 40. The transition plate 5224 is located between the wobble plate 442 and the lower hot press plate 5222. The top of the transition plate 5224 is preferably flush with the tops of the wobble plate 442 and the lower hot press plate 5222. When the booster 463 pushes the long plate 100 with the battery cells 102 placed on the top of the wobble plate 442 to the hot press assembly 50, the booster 463 first pushes the long plate 100 with the battery cells 102 placed to the top of the transition plate 5224, and then pushes it to the top of the lower hot press plate 5222. The movable plate 524 can move toward or away from the lower plate 522 along the Z-axis, and the upper hot press plate 5244 can move synchronously with the movable plate 524. After the long plate 100 with the battery cells 102 placed thereon is pushed to the top of the lower hot press plate 5222, the upper hot press plate 5244 is moved along the Z-axis direction toward the lower hot press plate 5222, thereby squeezing the battery cells 102 at the top of the long plate 100, thereby achieving hot pressing and shaping of the battery cells 102. The hot press rod is a heating rod. After the hot press rod heats up, the heat can be transferred to the long plate 100 through the lower hot press plate 5222, thereby achieving heating of the battery cells 102 through the long plate 100. In this way, the battery cells 102 can be hot pressed and shaped by the lower hot press plate 5222 and the upper hot press plate 5244. It is understandable that a hot press rod can also be set inside the upper hot press plate 5244.

[0068] In this embodiment, there are four mounting rods 5242, each of which extends through a through-hole provided at each corner of the movable plate 524. Linear bearings 5243 are provided in each of the through-holes and sleeved around the outer circumference of each mounting rod 5242. The linear bearings 5243 provide support for the movement of the movable plate 5244 along the Z-axis.

[0069] Two stoppers 52242 are provided on either side of the transition plate 5224 in the Y-axis direction. The two stoppers 52242 partially protrude from the top of the transition plate 5224. As the long plate 100, with the battery cells 102 placed thereon, is pushed from the top of the wobble plate 442 to the top of the transition plate 5224 by the booster 463, the two stoppers 52242 limit the long plate 100, ensuring that the booster 463 can push the long plate 100 to the top of the lower hot press plate 5222. Stoppers may also be provided on the side of the lower hot press plate 5222 away from the wobble plate assembly 40 and on both sides of the lower hot press plate 5222 in the Y-axis direction to limit the long plate 100.

[0070] The hot pressing drive mechanism 54 includes a hot pressing drive unit 542. The hot pressing drive unit 542 is preferably an oil cylinder, or may be a pneumatic cylinder, for example. The hot pressing drive unit 542 is disposed on a side of the upper plate 526 away from the movable plate 524. The output end of the hot pressing drive unit 542 passes through a through hole in the upper plate 526 and is connected to the movable plate 524. The hot pressing drive unit 542 is used to drive the movable plate 524 to move toward or away from the lower plate 522 along the Z-axis direction.

[0071] Furthermore, the hot pressure drive mechanism also includes a pressure regulating valve 544, which is arranged on the side of the upper plate 526 away from the movable plate 524. The pressure regulating valve 544 is connected to the hot pressure drive unit 542 and is used to adjust the pressure inside the hot pressure drive unit 542. By adjusting the pressure inside the hot pressure drive unit 542, the thrust or pull of the hot pressure drive unit 542 can be adjusted, thereby adjusting the distance that the movable plate 524 moves along the Z-axis direction.

[0072] The limiting mechanism 56 includes a stand 562 , a photoelectric sensor sheet 564 and a sensor 566 .

[0073] The stand 562 is located on one side of the lower plate 522, the movable plate 524 and the upper plate 526, such as the rear in the Y-axis direction. The stand 562 is set on the frame 10. One side of the stand 562, such as the side close to the swing plate device 40, is provided with two photoelectric sensor switches 5622 spaced apart along the Z-axis direction. One end of the photoelectric sensing piece 564 is connected to the movable plate 524, and the other end is used to cooperate with the groove of the photoelectric sensing switch 5622. The photoelectric sensing piece 564 can move synchronously with the movable plate 524. The photoelectric sensing piece 564 cooperates with the two photoelectric sensing switches 5622 to obtain the moving position of the movable plate 524 to limit the movement of the movable plate 524. In actual application, when the movable plate 524 is driven by the hot pressing driving unit 542 to move along the Z-axis direction close to the lower plate 522, when the end of the photoelectric sensing piece 564 away from the movable plate 524 cooperates with the groove of the photoelectric sensing switch 5622 located below the Z-axis direction, the photoelectric sensing switch 5622 located below the Z-axis direction will send a signal. Based on this signal, the hot press drive unit 542 can be controlled to stop driving the movable plate 524 to move, thereby limiting the movement of the movable plate 524 along the Z-axis direction toward the lower plate 522. During the process of the hot press drive unit 542 driving the movable plate 524 to move away from the lower plate 522 along the Z-axis direction, when the end of the photoelectric sensor sheet 564 away from the movable plate 524 mates with the groove of the photoelectric sensor switch 5622 located above the Z-axis direction, the photoelectric sensor switch 5622 located above the Z-axis direction will send a signal. Based on this signal, the hot press drive unit 542 can be controlled to stop driving the movable plate 524 to move, thereby limiting the movement of the movable plate 524 along the Z-axis direction away from the lower plate 522. The sensor 566 is located below the two photoelectric sensor switches 5622 and is used to detect the position of the battery cell 102 being flattened. The sensor 566 is preferably a photoelectric sensor.

[0074] Through the above structure, the working principle of the present invention is:

[0075] Tab shaping device action: The tab of the battery cell 102 is folded and shaped by the tab shaping device.

[0076] The loading and unloading device 30 operates: the first loading and unloading driving unit 342 drives the multiple loading and unloading units to move to a predetermined position close to the tab shaping device along the X-axis direction, so that the multiple loading and unloading units are located at the end of the tab shaping device, and then the second loading and unloading driving unit 344 and the synchronous belt assembly drive the multiple loading and unloading units to move to a predetermined position close to the tab shaping device along the Z-axis direction, so that the battery cell 102 can be sucked by the multiple loading and unloading units. Then, the second loading and unloading drive unit 344 and the synchronous belt assembly drive the multiple loading and unloading units and the battery cell 102 to move to the initial position along the Z-axis direction away from the tab shaping device. Then, the first loading and unloading drive unit 342 drives the multiple loading and unloading units and the battery cell 102 to move to a predetermined position along the X-axis direction close to the pre-pressing device 20, so that the battery cell 102 is located above the container 26. Then, the second loading and unloading drive unit 344 and the synchronous belt assembly drive the multiple loading and unloading units and the battery cell 102 to move to a predetermined position along the Z-axis direction close to the container 26, so that the multiple loading and unloading units can place the sucked battery cell 102 in the corresponding storage position of the container 26. Then, the second loading and unloading drive unit 344 and the synchronous belt assembly drive the multiple loading and unloading units to move to the initial position along the Z-axis direction away from the container 26.

[0077] The pre-pressing device 20 operates as follows: the second pressing drive unit 28 drives the container 26 and the battery cell 102 to move to a predetermined position along the X-axis direction close to the presser 24. At this time, the container 26 and the battery cell 102 are located below the presser 24. Then, the first pressing drive unit 27 drives the presser 24 to move to a predetermined position along the Z-axis direction close to the container 26, so that the presser 24 can pre-press and shape the battery cell 102. Then, the first pressing drive unit 27 drives the presser 24 to move away from the container 26 along the Z-axis direction to the initial position. Then, the second pressing drive unit 28 drives the container 26 and the battery cell 102 to move to the initial position along the X-axis direction away from the presser 24.

[0078] The moving mechanism 42 of the swing plate device 40 operates as follows: the long board 100 is placed at the bottom of the placement slots 4222 of the two placement plates 422. The second moving drive unit 426 then drives the fixing member 424 to move along the Z-axis toward the long board 100 to a predetermined position, whereby the connecting posts 4242 of the fixing member 424 engage with the through-holes of the long board 100, thereby connecting the fixing member 424 and the long board 100. The first moving drive unit 425 then drives the connecting member 423, the fixing member 424, and the long board 100 to move along the Y-axis toward the swing plate 442 to a predetermined position. During this process, the long board 100, driven by the fixing member 424, is transported to the top of the swing plate 442, whereupon the fixing member 424 is located within the clearance 4422 of the swing plate 442. Then, the second mobile drive unit 426 drives the fixing member 424 to move away from the long plate 100 along the Z-axis direction to the initial position, so that the connecting column 4242 of the fixing member 424 is separated from the through hole of the long plate 100, and at the same time, the first mobile drive unit 425 drives the connecting member 423 and the fixing member 424 to move away from the swing plate 442 along the Y-axis direction to the initial position.

[0079] The swing mechanism 44 of the swing device 40 is in action: the swing plate 442 and the long plate 100 are driven by the swing plate driving unit 443 to move along the Y-axis direction close to the propulsion mechanism 46 to a predetermined position. At this time, the long plate 100 corresponds to the boosting block 4634 and the transition plate 5224 of the boosting member 463 respectively, and the long plate 100 is located between the boosting block 4634 of the boosting member 463 and the transition plate 5224.

[0080] The loading and unloading device 30 operates as follows: the second loading and unloading drive unit 344 and the synchronous belt assembly drive the multiple loading and unloading units to move toward the container 26 along the Z-axis to a predetermined position, thereby allowing the multiple loading and unloading units to pick up the pre-pressed and shaped battery cells 102 from the container 26. The second loading and unloading drive unit 344 and the synchronous belt assembly then drive the multiple loading and unloading units and the battery cells 102 to move away from the container 26 along the Z-axis to an initial position. The first loading and unloading drive unit 342 then drives the multiple loading and unloading units and the battery cells 102 to move toward the swing plate 442 along the X-axis to a predetermined position, positioning the battery cells 102 above the elongated plate 100. The second loading and unloading drive unit 344 and the synchronous belt assembly then drive the multiple loading and unloading units to move toward the swing plate 442 along the Z-axis to a predetermined position, allowing the multiple loading and unloading units to place the battery cells 102 at the top of the elongated plate 100, thereby transporting the pre-pressed and shaped battery cells 102 to the top of the elongated plate 100.

[0081] After the top of the long board 100 is filled with battery cells 102, the propulsion mechanism 46 of the panning device 40 is activated: the propulsion drive unit 464 and the transmission unit drive the booster 463 to move along the X-axis toward the hot pressing device 50 to a predetermined position. As the booster block 4634 of the booster 463 moves, it pushes the long board 100 with the battery cells 102 placed thereon through the transition plate 5224 to the top of the lower hot pressing plate 5222. The propulsion drive unit 464 and the transmission unit then drive the booster 463 to move along the X-axis away from the hot pressing device 50 to its initial position. Then, the hot pressing drive unit 542 drives the movable plate 524 to move to a predetermined position along the Z-axis direction close to the lower plate 522, so that the upper hot pressing plate 5244 can squeeze the battery cell 102 at the top of the long plate 100. In this way, the upper hot pressing plate 5244 and the lower hot pressing plate 5222 can realize hot pressing and shaping of the battery cell 102. Thereafter, the hot pressing drive unit 542 drives the movable plate 524 to move to the initial position along the Z-axis direction away from the lower plate 522, thereby completing the shaping of the battery cell 102.

[0082] The present invention can place a long board through the set swing plate device 40, and can absorb the folded and shaped battery cells 102 through the loading and unloading device 30 and transport the absorbed battery cells 102 to the pre-pressing device 20 for pre-pressing and shaping, and absorb the pre-pressed and shaped battery cells 102 and transport the absorbed battery cells 102 to the top of the long board of the swing plate device 40. The long board with the battery cells can be pushed to the hot pressing device 50 through the swing plate device 40, so that the battery cells can be hot pressed by the hot pressing device 50. In this way, the present invention can realize the pre-pressing and hot pressing of the folded and shaped battery cells, with a high degree of automation, improved production efficiency and reduced production costs. By means of the provided moving mechanism 42, the operator only needs to place the long plate 100 at the bottom of the placement groove 4222 of the two placement plates 422. After the long plate 100 with the battery cell 102 placed on the top of the swing plate 442 is pushed to the hot pressing device 50, the moving mechanism 42 can automatically transport the long plate 100 to the top of the swing plate 442, so that the pre-pressed and shaped battery cell 102 can be transported to the top of the long plate 100 through the loading and unloading device 30, and the long plate 100 can be placed relatively directly on the top of the long plate 100. The top of the swing plate 442 can save time, further improve production efficiency and reduce production costs; the hot pressing device 50 is simple in structure, and the transition plate 5224 is convenient for the booster 463 to push the long plate 100 with the battery cell 102 to the top of the lower hot pressing plate 5222. The pressure regulating valve 544 can adjust the moving distance of the movable plate 524, and the limiting mechanism 56 can limit the moving distance of the movable plate 524 to ensure the progress of the hot pressing and shaping work.

[0083] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A battery cell shaping machine, comprising a frame and a tab shaping device and a loading and unloading device arranged on the frame, wherein the tab shaping device is used to fold and shape the tabs of the battery cell, and is characterized in that: It also includes a pre-pressing device, a swing plate device and a hot pressing device, which are arranged in sequence along the X-axis direction. The pre-pressing device is used to pre-press and shape the battery cells. The swing plate device is used to place a long plate and to push the long plate with the battery cells placed on it to the hot pressing device. The loading and unloading device is used to absorb the folded and shaped battery cells and transport the absorbed battery cells to the pre-pressing device and to absorb the pre-pressed and shaped battery cells and transport the absorbed battery cells to the top of the long plate of the swing plate device. The hot pressing device is used to perform hot pressing and shaping on the battery cells. The swing plate device includes a swing plate mechanism and a propulsion mechanism sequentially arranged on the frame along the Y-axis direction; The wobble plate mechanism includes a wobble plate for placing the long plate and a wobble plate driving unit, wherein the wobble plate driving unit is connected to the wobble plate and is used to drive the wobble plate to move toward or away from the propulsion mechanism along the Y-axis direction; The propulsion mechanism includes a bracket, a propulsion drive assembly arranged on the bracket, and a booster connected to the propulsion drive assembly. The swing plate is located between the booster and the hot pressing device. The booster is slidably connected to the bracket. The propulsion drive assembly is used to drive the booster to move closer to or away from the hot pressing device along the X-axis direction relative to the bracket. The booster is used to push the long plate with the battery cells placed to the hot pressing device.

2. The battery cell shaping integrated machine according to claim 1, characterized in that: The propulsion drive assembly includes a propulsion drive unit arranged on the bracket and a transmission unit connected to the propulsion drive unit. The booster is connected to the transmission unit. The propulsion drive unit is used to drive the booster to move closer to or away from the hot pressing device along the X-axis direction through the transmission unit.

3. The battery cell shaping integrated machine according to claim 1, characterized in that: The swing plate device also includes a moving mechanism arranged on the frame, the swing plate mechanism is located between the moving mechanism and the propulsion mechanism, the moving mechanism includes at least two placement plates for placing long plates and a moving drive assembly, the two placement plates are arranged at intervals along the X-axis direction, and the moving drive assembly is located between the two placement plates. When a long plate is placed on the top of the two placement plates, the moving drive assembly can drive the long plate to move along the Y-axis direction close to the swing plate to transport the long plate to the top of the swing plate.

4. The battery cell shaping integrated machine according to claim 3, characterized in that: The movable drive assembly includes a connecting member, a fixing member arranged at the top of the connecting member, a first movable drive unit and a second movable drive unit, one end of the connecting member is connected to the first movable drive unit, and the other end is provided with the second movable drive unit, the fixing member is connected to the second movable drive unit, when a long board is placed on the top of the two plate plates, the fixing member is located below the long board, the second movable drive unit is used to drive the fixing member to move closer to or away from the long board relative to the connecting member along the Z-axis direction, the top of the fixing member is provided with a connecting column for cooperating with the through hole of the long board, when the fixing member moves close to the long board along the Z-axis direction, the connecting column can cooperate with the through hole of the long board, so that the fixing member and the long board can be connected together, the first movable drive unit is used to drive the connecting member to move closer to or away from the wobble plate along the Y-axis direction, and the fixing member and the second movable drive unit can move synchronously with the connecting member.

5. The battery cell shaping integrated machine according to claim 4, characterized in that: A clearance position is provided on one side of the wobble plate close to the moving mechanism, and the clearance position corresponds to the fixing member.

6. The battery cell shaping integrated machine according to claim 1, characterized in that: The hot pressing device includes a hot pressing mechanism, which includes a lower plate, a movable plate and an upper plate arranged in sequence along the Z-axis direction; The lower plate is arranged on the frame, the movable plate is penetrated by a mounting rod, the two ends of the mounting rod are respectively connected to the lower plate and the upper plate, a lower hot pressing plate is provided on the side of the lower plate close to the movable plate, and a hot pressing rod is provided in the lower hot pressing plate; An upper hot pressing plate is provided on the side of the movable plate close to the lower plate, and the upper hot pressing plate corresponds to the lower hot pressing plate. A transition plate is provided on the side of the lower hot pressing plate close to the swing plate device, and the transition plate is located between the swing plate and the lower hot pressing plate. The movable plate can move closer to or away from the lower plate along the Z-axis direction, and the upper hot pressing plate can move synchronously with the movable plate.

7. The battery cell shaping integrated machine according to claim 6, characterized in that: The hot pressing device also includes a hot pressing drive mechanism and a limiting mechanism; The hot pressing drive mechanism includes a hot pressing drive unit and a pressure regulating valve provided on the upper plate, the hot pressing drive unit being connected to the movable plate and configured to drive the movable plate to move closer to or away from the lower plate along the Z-axis direction, and the pressure regulating valve being connected to the hot pressing drive unit; The limiting mechanism includes a stand, a photoelectric sensing sheet and a sensor arranged on the frame. The stand is located on one side of the lower plate, the movable plate and the upper plate. One side of the stand is provided with two photoelectric sensing switches spaced apart along the Z-axis direction. One end of the photoelectric sensing sheet is connected to the movable plate, and the other end is used to cooperate with the groove of the photoelectric sensing switch. The photoelectric sensing sheet can move synchronously with the movable plate. The sensor is located below the two photoelectric sensing switches, and the sensor is used to detect the position of the flattened battery cell.

8. The battery cell shaping integrated machine according to any one of claims 1 to 7, characterized in that: The pre-pressing device includes a pressing frame, a pressing device, a container for placing battery cells, a first pressing drive unit and a second pressing drive unit arranged on the frame, the pressing device is arranged in the pressing frame, the container is slidably arranged on the frame and is located between the swing plate device and the pressing frame, the first pressing drive unit is arranged at the top of the pressing frame and connected to the pressing device, the second pressing drive unit is arranged on the frame and passes through the pressing frame and is connected to the container, the second pressing drive unit is used to drive the container to move closer to or away from the pressing device along the X-axis direction, and the first pressing drive unit is used to drive the pressing device to move closer to or away from the container along the Z-axis direction.

9. The battery cell shaping integrated machine according to claim 8, characterized in that: The loading and unloading device includes a loading and unloading bracket arranged on the frame, a loading and unloading drive mechanism arranged on the loading and unloading bracket, and an loading and unloading mechanism. The loading and unloading mechanism is located above the container. The loading and unloading mechanism includes a fixed seat and a plurality of loading and unloading units arranged on the loading and unloading drive mechanism. The plurality of loading and unloading units are arranged in sequence at intervals along the Y-axis direction. The top ends of the plurality of loading and unloading units are all arranged on one side of the fixed seat. The bottom ends of the plurality of loading and unloading units are all located below the fixed seat. The loading and unloading units are used to absorb battery cells. The loading and unloading drive mechanism is used to drive the fixed seat to move back and forth along the X-axis direction and to drive the fixed seat to move back and forth along the Z-axis direction. The plurality of loading and unloading units can move synchronously with the fixed seat.

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