An energy storage battery cell assembly device and method

Abstract

The present invention discloses an energy storage battery cell assembly device and method, which relates to energy storage device processing technology, including an assembly base, two groups of conveying equipment are installed inside the assembly base, and a plurality of placement members for placing battery shells are fixedly connected to the outer sides of the transmission belts arranged in the two groups of conveying equipment. The assembly base also includes: a support frame fixedly connected to the top of the assembly base, and a repair frame is limited by a connecting member. In this solution, the connecting member includes a fixed plate, and the outer sides of both ends of the fixed plate are slidably connected to a sliding sleeve plate, and a T-shaped slide groove is opened on the side of the repair frame. The sliding sleeve plate extends into the inside of the T-shaped slide groove and is slidably connected to the repair frame, thereby ensuring that the four repair frames always remain parallel, so that the repair frame is fitted with the corners of the rectangular battery, and as the fixed frame moves, the corners of the battery shell are continuously trimmed.

Description

Technical Field

[0001] This invention relates to the field of energy storage device processing technology, and in particular to an energy storage battery cell assembly device and method. Background Technology

[0002] A battery is an energy storage device that stores electrical energy. Generally, a battery refers to a cup, tank, or other container or composite container containing an electrolyte solution and metal electrodes to generate an electric current. It converts chemical energy into electrical energy and has positive and negative electrodes. Nowadays, it can also refer to small devices that generate electrical energy. Common energy storage batteries include lithium-ion batteries, sodium-ion batteries, lead-acid batteries, nickel-metal hydride batteries, and supercapacitors. In the production and processing of lithium-ion and sodium-ion batteries, the battery cell and electrolyte are generally placed in a metal casing, which is then sealed. Taking the production of cylindrical batteries as an example, the process of installing the battery cell into the metal casing was traditionally done manually, which was inefficient and labor-intensive.

[0003] Therefore, referring to the patent application with publication number CN116404230A, a casing insertion device and method for cylindrical battery cells are disclosed. The casing insertion device includes a battery conveyor line, a cell positioning and guiding mechanism disposed on one side of the battery conveyor line, a cell carrying mechanism disposed on one side of the cell positioning and guiding mechanism, a cell insertion mechanism disposed on one side of the cell carrying mechanism for pushing the cell to move, a casing limiting mechanism disposed on the other side of the battery conveyor line, and a casing positioning mechanism for positioning the battery casing. This invention can automate the cell insertion operation, improve work efficiency, and avoid cell damage caused by human factors. The cell positioning and guiding mechanism of this invention can reduce the outer diameter of the cell, ensuring that the cell can be completely inserted into the casing even when the casing is deformed, ensuring the assembly effect, avoiding damage to the cell during the assembly process, and ensuring a high yield rate.

[0004] The device repairs the battery casing by external clamping, but this method only repairs the opening of the battery casing and cannot effectively repair the inside of the casing. Furthermore, most existing batteries are rectangular or round, and the single-purpose assembly for round batteries has too limited applicability and cannot be adapted for both types of batteries.

[0005] Therefore, it is necessary to provide an energy storage battery cell assembly device and method to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide an energy storage battery cell assembly device and method to solve the defects of the prior art mentioned in the background section.

[0007] Based on the above ideas, the present invention provides the following technical solution: an energy storage battery cell assembly device, including an assembly base, wherein two sets of conveying devices are installed inside the assembly base, and multiple placement components for placing battery casings are fixedly connected to the outer side of the transmission belts in the two sets of conveying devices, and further comprising:

[0008] A support frame is fixedly connected to the top of the assembly base. An upper clamping plate is provided inside the support frame. A second hydraulic rod is fixedly connected between the upper clamping plate and the support frame. A limiting member for blocking the battery case is provided on the outside of the upper clamping plate.

[0009] A fixed frame is fixedly connected to the outside of the assembly base. The fixed frame is located on one side of the support frame. A movable plate is installed inside the fixed frame. A drive module for lifting and lowering the movable plate is installed inside the fixed frame. A fourth hydraulic rod is fixedly connected to one side of the movable plate. A fixed frame is fixedly connected to one end of the fourth hydraulic rod. A rotating cylinder is rotatably connected inside the fixed frame.

[0010] Four repair frames are provided on the outside of the rotating cylinder. The repair frames are arranged in a ring around the center of the rotating cylinder. Connectors are slidably connected between the four repair frames. Adjustment components are provided between the two ends of the four repair frames and the rotating cylinder. These components are used to adjust the repair frames according to different battery cases, so that the repair frames fit the edges and corners of the battery case and are used to repair the battery case.

[0011] A side bracket is fixedly connected to the outside of the assembly base. A conveying device for transferring battery cells is provided on the top of the side bracket. A pushing component is provided on one side of the top of the side bracket for pushing the battery cells to assemble with the battery casing.

[0012] As a further aspect of the present invention: the adjustment assembly includes two second electric push rods fixedly connected to the outside of the rotating cylinder, one end of each of the two second electric push rods is fixedly connected to a push frame, and two sliding blocks are slidably connected inside each of the two push frames.

[0013] As a further aspect of the present invention: the adjustment assembly further includes a first electric push rod hinged to the repair frame, a deflection plate is fixedly connected to one end of the first electric push rod near the rotating cylinder, a rotating ring is fixedly connected to one end of the deflection plate, the rotating ring is rotatably sleeved on the outside of the repair frame, and a rotating rod is rotatably connected between the sliding block and the deflection plate.

[0014] As a further aspect of the present invention: an external gear ring is fixedly connected to the outside of the rotating cylinder, a transmission gear is meshed with the outside of the external gear ring, a first motor is fixedly connected to the outside of the fixed frame, the output shaft of the first motor is fixedly connected to the transmission gear, a lead screw is rotatably connected inside the rotating cylinder, a second motor is fixedly connected to the outside of the rotating cylinder, the output shaft of the second motor is fixedly connected to the lead screw, a moving block is connected to the outside of the lead screw through a ball nut pair, and a telescopic rod is fixedly connected between the moving block and each of the four connecting parts.

[0015] As a further aspect of the present invention: sliding plates are slidably connected to both sides of the repair frame away from the rotating cylinder; a sliding roller is provided inside the repair frame; a connecting block is rotatably connected to both ends of the sliding roller; the connecting block is slidably connected to the repair frame; a fifth hydraulic rod is fixedly connected between the connecting block and the repair frame; a first push rod is fixedly connected to both sides of the connecting block; a first air cylinder is slidably connected to the outside of the first push rod; a second push rod is fixedly connected to the outside of the sliding plate; a second air cylinder is slidably sleeved on the outside of the second push rod; the second air cylinder is fixedly connected to the repair frame; a connecting pipe is fixedly connected between the second air cylinder and the first air cylinder; when the first push rod moves, it pushes the gas inside the first air cylinder into the second air cylinder, squeezing the second push rod to move.

[0016] As a further aspect of the present invention: the limiting member includes two L-shaped racks slidably connected to the top of the upper clamping plate, and the top of each of the two L-shaped racks is meshed with a drive gear. A drive motor is fixedly connected to the outside of the upper clamping plate, and a transmission rod is fixedly connected to the output shaft of the drive motor. The transmission rod passes through the two drive gears and is fixedly connected to the drive gears.

[0017] As a further embodiment of the present invention: the pushing assembly includes a third electric push rod fixedly connected to the outside of the side bracket, a push plate fixedly connected to one end of the third electric push rod, and third hydraulic rods fixedly connected to both sides inside the support frame, a guide plate fixedly connected to one end of the third hydraulic rod, and a support wheel rotatably connected to one side of the guide plate.

[0018] As a further aspect of the present invention: the placement component includes a placement plate fixedly connected to the transmission belt, and a first hydraulic rod is fixedly connected to both sides of the placement plate, with a first clamping plate fixedly connected to one end of the first hydraulic rod.

[0019] A method for assembling energy storage battery cells is also provided, including the following steps:

[0020] S1. First, the battery case is placed on two conveying devices on the assembly base for conveying. The battery case is fixed and conveyed by the placement parts on the two conveying devices.

[0021] S2. When the battery is conveyed to the bottom of the support frame, the second hydraulic rod pushes the upper clamping plate to clamp and fix the battery case, and the conveying stops.

[0022] S3. Adjust the position of the moving plate by driving the module so that the fourth hydraulic rod pushes the fixed frame to extend into the battery case and the battery case is reshaped and repaired by the four repair frames.

[0023] S4. The battery cells are then transported by a conveying device, and the third electric push rod is activated to push the push plate to assemble the battery cells into the battery casing.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. The repair frame is limited by the connector. In this solution, the connector includes a fixing plate. Sliding sleeves are slidably connected to the outer sides of both ends of the fixing plate. A T-shaped groove is opened on the side of the repair frame. The sliding sleeves extend into the T-shaped groove and slide to connect with the repair frame, thereby ensuring that the four repair frames always remain parallel, so that the repair frame fits the corners of the rectangular battery. As the fixing frame moves, the corners of the battery case are continuously adjusted.

[0026] 2. The second electric push rod pushes the push frame, which in turn drives the two sliding blocks to slide and connect, thereby adjusting the angle between the two deflection plates on the same side. This allows the four repair frames to be adaptively adjusted according to battery cases of different sizes, thus improving the applicability.

[0027] 3. The lead screw drives the moving block to move back and forth, and the moving block drives the fixed plate that is fixedly connected to move through the telescopic rod. This causes the fixed plate and the sliding sleeve to move inside the battery case, thereby repairing the inside of the battery case and improving the repair and shaping effect of the battery case.

[0028] 4. Gas is injected into the second air cylinder through the connecting pipe. The air pressure pushes the second push rod to move, which in turn pushes the sliding plate to move, causing the two sliding plates to move away from each other. This exposes the sliding roller and puts it in contact with the inner wall of the battery casing. At this time, the output shaft of the first motor is started to drive the fixed transmission gear to rotate. The transmission gear drives the outer gear ring to rotate, and the outer gear ring drives the rotating cylinder to rotate. This causes the four sliding rollers to rotate inside the battery casing, thereby repairing the battery casing and ensuring the smooth assembly of the battery cells. This achieves the assembly of rectangular and cylindrical battery cells. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and examples.

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the driving component of the present invention;

[0032] Figure 3 This is a schematic diagram of the limiting component structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the fixing frame structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the rotating cylinder structure of the present invention;

[0035] Figure 6 This is the present invention. Figure 5 A magnified structural diagram at point A;

[0036] Figure 7 This is a schematic diagram of the repair frame and connector structure of the present invention;

[0037] Figure 8 This is the present invention. Figure 7 A magnified structural diagram at point B;

[0038] Figure 9 This is a schematic diagram of the sliding roller structure of the present invention;

[0039] Figure 10 This is a schematic diagram of the repair frame structure of the present invention;

[0040] Figure 11 This is a schematic diagram of the separation structure of the repair frame and the sliding plate in this invention.

[0041] In the diagram: 1. Assembly base; 2. Conveying equipment; 3. Placement component; 301. Placement plate; 302. First hydraulic rod; 303. First clamping plate; 4. Support frame; 400. Second hydraulic rod; 401. Third hydraulic rod; 402. Guide plate; 403. Support wheel; 5. Upper clamping plate; 501. L-shaped rack; 502. Drive gear; 503. Transmission rod; 6. Fixed frame; 7. Moving plate; 701. Fourth hydraulic rod; 702. Drive module; 8. Fixed frame; 9. Rotating cylinder; 901. Repair frame; 9011. Sliding roller; 9012. Connecting block; 9013. Fifth hydraulic rod; 901 4. First air cylinder; 9015. First push rod; 9016. Second push rod; 9017. Second air cylinder; 9018. Sliding plate; 902. Deflection plate; 903. First electric push rod; 904. Push frame; 905. Sliding block; 906. Connector; 9061. Fixing plate; 9062. Sliding sleeve; 907. Lead screw; 908. Telescopic rod; 909. Moving block; 911. External gear ring; 912. Transmission gear; 913. First motor; 914. Second motor; 915. Second electric push rod; 11. Side bracket; 12. Push plate; 13. Third electric push rod; 14. Conveying device. Detailed Implementation

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] like Figures 1 to 11 As shown, an energy storage battery cell assembly device includes the following embodiments:

[0044] like Figures 1 to 3 As shown, Embodiment 1 includes an assembly base 1, inside which are installed two sets of conveying devices 2. The conveying devices 2 can use existing transmission belts and transmission wheels. Multiple placement components 3 for placing battery cases are fixedly connected to the outer side of the transmission belts in the two sets of conveying devices 2. It also includes:

[0045] A support frame 4 is fixedly connected to the top of the assembly base 1. An upper clamping plate 5 is provided inside the support frame 4. A second hydraulic rod 400 is fixedly connected between the upper clamping plate 5 and the support frame 4. A limiting member for blocking the battery case is provided on the outside of the upper clamping plate 5.

[0046] A fixed frame 6 is fixedly connected to the outside of the assembly base 1. The fixed frame 6 is located on one side of the support frame 4. A movable plate 7 is provided inside the fixed frame 6. A drive module 702 for lifting and lowering the movable plate 7 is provided inside the fixed frame 6. A fourth hydraulic rod 701 is fixedly connected to one side of the movable plate 7. A fixed frame 8 is fixedly connected to one end of the fourth hydraulic rod 701. A rotating cylinder 9 is rotatably connected inside the fixed frame 8.

[0047] Four repair frames 901 are provided on the outside of the rotating cylinder 9. The repair frames 901 are arranged in a ring around the center of the rotating cylinder 9. Connectors 906 are slidably connected between the four repair frames 901. Adjustment components are provided between the two ends of the four repair frames 901 and the rotating cylinder 9 for adjusting according to different battery cases, so that the repair frames 901 fit with the corners of the battery case and repair the battery case.

[0048] A side bracket 11 is fixedly connected to the outside of the assembly base 1. A conveying device 14 for cell transfer is provided on the top of the side bracket 11. A pushing component is provided on one side of the top of the side bracket 11 for pushing the cell to assemble with the battery case.

[0049] In practice, the battery casing is first placed on two conveying devices 2 on the assembly base 1 for conveying. The battery casing is fixed and conveyed by the placement parts 3 on the two conveying devices 2. When it is conveyed to the support frame 4, the second hydraulic rod 400 pushes the upper clamping plate 5 to clamp and fix the battery casing and stops conveying. Then, the position of the moving plate 7 is adjusted by the drive module 702. The drive module 702 can be a lead screw module to drive the moving plate 7 to rise and fall, so that the fourth hydraulic rod 701 pushes the fixing frame 8 to extend into the battery casing. The battery casing is shaped and repaired by the four repair frames 901. Then, the battery cell is conveyed by the conveying device 14. The third electric push rod 13 is activated to push the push plate 12 to assemble the battery cell into the battery casing, thereby improving the assembly efficiency. By shaping and repairing the inside of the battery casing, the battery cell is prevented from getting stuck and being damaged when it is assembled into the battery casing.

[0050] like Figure 3 As shown, in this embodiment, the limiting member includes two L-shaped racks 501 slidably connected to the top of the upper clamping plate 5. The top of each of the two L-shaped racks 501 is meshed with a drive gear 502. A drive motor is fixedly connected to the outside of the upper clamping plate 5. The output shaft of the drive motor is fixedly connected to a transmission rod 503. The transmission rod 503 passes through the two drive gears 502 and is fixedly connected to the drive gears 502.

[0051] The pushing assembly includes a third electric push rod 13 fixedly connected to the outside of the side bracket 11. One end of the third electric push rod 13 is fixedly connected to a push plate 12. Both sides of the support frame 4 are fixedly connected to a third hydraulic rod 401. One end of the third hydraulic rod 401 is fixedly connected to a guide plate 402. One side of the guide plate 402 is rotatably connected to a support wheel 403.

[0052] The placement component 3 includes a placement plate 301 fixedly connected to the transmission belt. Both sides of the placement plate 301 are fixedly connected to a first hydraulic rod 302, and one end of the first hydraulic rod 302 is fixedly connected to a first clamping plate 303.

[0053] In specific implementation, the second hydraulic rod 400 pushes the upper clamping plate 5 down to clamp and fix the battery case. The drive motor is started to drive the transmission rod 503 to rotate. The transmission rod 503 drives the two drive gears 502 to rotate. The drive gears 502 drive the meshing L-shaped rack 501 to move, so that the L-shaped rack 501 blocks one end of the battery case. When the third electric push rod 13 in the later push assembly pushes the push plate 12 to move, the push plate 12 pushes the battery cell into the battery case. In order to ensure the smooth entry of the battery cell, the third hydraulic rod 401 is set on both sides inside the support frame 4. The third hydraulic rod 401 pushes the guide plate 402 to guide the battery cell, and the support wheel 403 supports the bottom of the battery cell.

[0054] like Figures 4 to 5 As shown in Embodiment 2, the adjustment assembly includes two second electric push rods 915 fixedly connected to the outside of the rotating cylinder 9. One end of each of the two second electric push rods 915 is fixedly connected to a push frame 904. Two sliding blocks 905 are slidably connected inside each of the two push frames 904. The adjustment assembly also includes a first electric push rod 903 hinged to the repair frame 901. One end of the first electric push rod 903 near the rotating cylinder 9 is fixedly connected to a deflection plate 902. One end of the deflection plate 902 is fixedly connected to a rotating ring. The rotating ring is rotatably sleeved on the outside of the repair frame 901. A rotating rod is rotatably connected between the sliding block 905 and the deflection plate 902.

[0055] In practice, the battery casing is prone to dents during transportation, especially at the four corners of rectangular battery casings. When it is necessary to repair the four corners of the battery casing, the first electric push rod 903 at one end of the deflection plate 902 is activated, causing the first electric push rod 903 to push the repair frame 901 to extend. Connectors 906 are slidably connected between the four repair frames 901, and the repair frames 901 are limited by the connectors 906. In this solution, the connector 906 includes a fixing plate 9061, and sliding sleeves 9062 are slidably connected to the outer sides of both ends of the fixing plate 9061. A T-shaped groove is opened on the side of the repair frame 901, and the sliding sleeves 9062 extend into the T-shaped groove and slidably connect with the repair frame 901, thereby ensuring that the four repair frames 901 always remain parallel, so that the repair frame 901 fits against the corners of the rectangular battery, and the corners of the battery casing are continuously adjusted as the fixing frame 8 moves.

[0056] Since different battery cases have different sizes, this solution can also activate the second electric push rod 915, which pushes the push frame 904, causing the push frame 904 to drive the two sliding blocks 905 to slide and connect, thereby adjusting the angle between the two deflection plates 902 on the same side. This allows the four repair frames 901 to be adaptively adjusted according to battery cases of different sizes, thus improving the applicability.

[0057] like Figures 7 to 8 As shown, in this embodiment: an external gear ring 911 is fixedly connected to the outside of the rotating cylinder 9, and a transmission gear 912 is meshed with the outside of the external gear ring 911; a first motor 913 is fixedly connected to the outside of the fixed frame 8; the output shaft of the first motor 913 is fixedly connected to the transmission gear 912; a lead screw 907 is rotatably connected inside the rotating cylinder 9; a second motor 914 is fixedly connected to the outside of the rotating cylinder 9; the output shaft of the second motor 914 is fixedly connected to the lead screw 907; a moving block 909 is connected to the outside of the lead screw 907 through a ball nut pair; and a telescopic rod 908 is fixedly connected between the moving block 909 and each of the four connecting parts 906.

[0058] In specific implementation, Example 1 mainly focuses on shaping the four corners of the rectangular battery. However, when there are unevennesses on the sides of the battery casing, this solution uses a connector 906 to keep the fixing plate 9061 and the sliding sleeve 9062 on the same plane as the outside of the repair frame 901. When the repair frame 901 repairs the rectangular corners, the lead screw 907 is activated, which drives the moving block 909 to move back and forth. The moving block 909, through the telescopic rod 908, drives the fixed plate 9061 to move, thereby moving the fixing plate 9061 and the sliding sleeve 9062 inside the battery casing, thus repairing the inside of the battery casing and improving the repair and shaping effect of the battery casing.

[0059] like Figures 9 to 11 As shown in Embodiment 3: Sliding plates 9018 are slidably connected to both sides of the repair frame 901 away from the rotating cylinder 9. A sliding roller 9011 is provided inside the repair frame 901. Connecting blocks 9012 are rotatably connected to both ends of the sliding roller 9011. The connecting blocks 9012 are slidably connected to the repair frame 901. A fifth hydraulic rod 9013 is fixedly connected between the connecting blocks 9012 and the repair frame 901. First push rods 9015 are fixedly connected to both sides of the connecting blocks 9012. A first air cylinder 9014 is slidably connected to the outside, and a second push rod 9016 is fixedly connected to the outside of the sliding plate 9018. A second air cylinder 9017 is slidably sleeved on the outside of the second push rod 9016. The second air cylinder 9017 is fixedly connected to the repair frame 901. A connecting pipe is fixedly connected between the second air cylinder 9017 and the first air cylinder 9014. When the first push rod 9015 moves, it pushes the gas inside the first air cylinder 9014 into the second air cylinder 9017, squeezing the second push rod 9016 to move.

[0060] In specific implementation, when assembling a circular battery cell or repairing a circular battery casing, when the rotating cylinder 9 extends into the battery casing, and the cross-sections of the four repair frames 901 form a square by adjusting the assembly, the fifth hydraulic rods 9013 at both ends of the sliding roller 9011 are activated. The fifth hydraulic rods 9013 push the sliding roller 9011 to slide obliquely out from inside the repair frame 901. When the sliding roller 9011 slides out, the connecting block 9012 drives the first push rod 9015 to move. The first push rod 9015 compresses the gas inside the first air cylinder 9014 and injects the gas into the second air cylinder 9017 through the connecting pipe. The second push rod 9016 is moved by air pressure, which in turn pushes the sliding plate 9018 to move, causing the two sliding plates 9018 to move away from each other. This exposes the sliding roller 9011 and it comes into contact with the inner wall of the battery case. At this time, the output shaft of the first motor 913 is started, which drives the fixedly connected transmission gear 912 to rotate. The transmission gear 912 drives the outer gear ring 911 to rotate, and the outer gear ring 911 drives the rotating cylinder 9 to rotate. This causes the four sliding rollers 9011 to rotate inside the battery case, thereby repairing the battery case and ensuring the smooth assembly of the battery cells. This achieves the assembly of rectangular and cylindrical battery cells.

[0061] A method for assembling energy storage battery cells is also provided, including the following steps:

[0062] S1. First, the battery case is placed on two conveying devices 2 on the assembly base 1 for conveying. The battery case is fixed and conveyed by the placement parts 3 on the two conveying devices 2.

[0063] S2. When the battery is conveyed to the support frame 4, the second hydraulic rod 400 pushes the upper clamping plate 5 to clamp and fix the battery case, and the conveying stops.

[0064] S3. Adjust the position of the moving plate 7 by driving module 702, so that the fourth hydraulic rod 701 pushes the fixed frame 8 to extend into the battery case, and the battery case is reshaped and repaired by four repair frames 901.

[0065] S4. The battery cell is then transported by the conveying device 14, and the third electric push rod 13 is activated to push the push plate 12 to assemble the battery cell into the battery case.

[0066] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery cell assembly device for energy storage, characterized in that, The assembly base (1) includes two sets of conveying devices (2) installed inside the assembly base (1). Multiple placement components (3) for placing battery cases are fixedly connected to the outer side of the transmission belts in the two sets of conveying devices (2). The assembly base (1) also includes: A support frame (4) is fixedly connected to the top of the assembly base (1). An upper clamping plate (5) is provided inside the support frame (4). A second hydraulic rod (400) is fixedly connected between the upper clamping plate (5) and the support frame (4). A limiting member for blocking the battery case is provided on the outside of the upper clamping plate (5). A fixed frame (6) is fixedly connected to the outside of the assembly base (1). The fixed frame (6) is set on one side of the support frame (4). A movable plate (7) is set inside the fixed frame (6). A drive module (702) for lifting the movable plate (7) is set inside the fixed frame (6). A fourth hydraulic rod (701) is fixedly connected to one side of the movable plate (7). A fixed frame (8) is fixedly connected to one end of the fourth hydraulic rod (701). A rotating cylinder (9) is rotatably connected inside the fixed frame (8). Four repair frames (901) are provided on the outside of the rotating cylinder (9). The repair frames (901) are arranged in a ring around the center of the rotating cylinder (9). Connectors (906) are slidably connected between the four repair frames (901). Adjustment components are provided between the two ends of the four repair frames (901) and the rotating cylinder (9) for adjusting according to different battery cases, so that the repair frames (901) fit with the corners of the battery case and repair the battery case. The assembly base (1) is fixedly connected to a side bracket (11) on the outside. A conveying device (14) for conveying the battery cell is provided on the top of the side bracket (11). A pushing component is provided on one side of the top of the side bracket (11) for pushing the battery cell to assemble with the battery case. The adjustment assembly includes two second electric push rods (915) fixedly connected to the outside of the rotating cylinder (9). One end of each of the two second electric push rods (915) is fixedly connected to a push frame (904). Two sliding blocks (905) are slidably connected inside each of the two push frames (904). The adjustment assembly also includes a first electric push rod (903) hinged to the repair frame (901). The first electric push rod (903) has a deflection plate (902) fixedly connected to one end near the rotating cylinder (9). A rotating ring is fixedly connected to one end of the deflection plate (902). The rotating ring is rotatably sleeved on the outside of the repair frame (901). A rotating rod is rotatably connected between the sliding block (905) and the deflection plate (902). The repair frame (901) has sliding plates (9018) slidably connected to both sides away from the rotating cylinder (9). A sliding roller (9011) is installed inside the repair frame (901). Connecting blocks (9012) are rotatably connected to both ends of the sliding roller (9011). The connecting blocks (9012) are slidably connected to the repair frame (901). A fifth hydraulic rod (9013) is fixedly connected between the connecting blocks (9012) and the repair frame (901). First push rods (9015) are fixedly connected to both sides of the connecting blocks (9012). The outer sides of the first push rods (9015) slide... A first air cylinder (9014) is movably connected. A second push rod (9016) is fixedly connected to the outside of the sliding plate (9018). A second air cylinder (9017) is slidably sleeved on the outside of the second push rod (9016). The second air cylinder (9017) is fixedly connected to the repair frame (901). A connecting pipe is fixedly connected between the second air cylinder (9017) and the first air cylinder (9014). When the first push rod (9015) moves, it pushes the gas inside the first air cylinder (9014) into the second air cylinder (9017), squeezing the second push rod (9016) to move.

2. The energy storage battery cell assembly device according to claim 1, characterized in that: An external gear ring (911) is fixedly connected to the outside of the rotating cylinder (9), and a transmission gear (912) is meshed with the outside of the external gear ring (911). A first motor (913) is fixedly connected to the outside of the fixed frame (8). The output shaft of the first motor (913) is fixedly connected to the transmission gear (912). A lead screw (907) is rotatably connected inside the rotating cylinder (9). A second motor (914) is fixedly connected to the outside of the rotating cylinder (9). The output shaft of the second motor (914) is fixedly connected to the lead screw (907). A moving block (909) is connected to the outside of the lead screw (907) through a ball nut pair. A telescopic rod (908) is fixedly connected between the moving block (909) and the four connecting parts (906).

3. The energy storage battery cell assembly device according to claim 1, characterized in that: The limiting component includes two L-shaped racks (501) slidably connected to the top of the upper clamping plate (5). The top of each L-shaped rack (501) is meshed with a drive gear (502). A drive motor is fixedly connected to the outside of the upper clamping plate (5). A transmission rod (503) is fixedly connected to the output shaft of the drive motor. The transmission rod (503) passes through the two drive gears (502) and is fixedly connected to the drive gears (502).

4. The energy storage battery cell assembly device according to claim 1, characterized in that: The pushing assembly includes a third electric push rod (13) fixedly connected to the outside of the side bracket (11), a push plate (12) fixedly connected to one end of the third electric push rod (13), a third hydraulic rod (401) fixedly connected to both sides inside the support frame (4), a guide plate (402) fixedly connected to one end of the third hydraulic rod (401), and a support wheel (403) rotatably connected to one side of the guide plate (402).

5. The energy storage battery cell assembly device according to claim 1, characterized in that: The placement component (3) includes a placement plate (301) fixedly connected to the transmission belt. Both sides of the placement plate (301) are fixedly connected to a first hydraulic rod (302), and one end of the first hydraulic rod (302) is fixedly connected to a first clamping plate (303).

6. A method for assembling energy storage battery cells, applicable to the energy storage battery cell assembly apparatus according to any one of claims 1 to 5, characterized in that, Includes the following steps: S1. First, the battery case is placed on two conveying devices (2) on the assembly base (1) for conveying. The battery case is fixed and conveyed by the placement parts (3) on the two conveying devices (2). S2. When the battery is conveyed to the support frame (4), the second hydraulic rod (400) pushes the upper clamping plate (5) to clamp and fix the battery case, and stops the conveying. S3. Adjust the position of the moving plate (7) by the drive module (702) so that the fourth hydraulic rod (701) pushes the fixed frame (8) to extend into the battery case and the battery case is reshaped and repaired by the four repair frames (901). S4. The battery cell is then transported by the conveying device (14), and the third electric push rod (13) is activated to push the push plate (12) to assemble the battery cell into the battery case.

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