A square battery cell production line

Abstract

The present invention provides a square cell production line, comprising: a cell segment processing system, a module segment processing system and a pack segment processing system arranged in sequence along a processing direction; the cell segment processing system comprises a cell transfer device, a cell gluing device and a partition feeding device arranged in sequence along the processing direction, the cell transfer device is used to put the cell on line, the cell gluing device is used to glue on the cell, and the partition feeding device is used to put the partition on line so that the partition is pasted to the cell; the module segment processing system comprises a cell module stacking device, a cell module bundling and extruding device, a busbar welding device and a cell module clamping device arranged in sequence along the processing direction. The square cell production line provided by the present invention automatically completes the processing of the cell segment, module segment and pack segment of the battery by arranging the cell segment processing system, the module segment processing system and the pack segment processing system, thereby greatly improving the production efficiency of the cell.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and particularly to a production line for square electric cores. Background Art

[0002] The smallest unit of a battery pack is an electric core, which is an electric energy storage unit; multiple electric cores are stacked together to form a module. In the field of the production line for module PACK assembly in the power lithium battery industry, for the production of battery packs, many steps usually need to be manually processed, which not only has low safety, but also seriously affects the production efficiency and is difficult to ensure the production quality of the batteries.

[0003] Therefore, there is an urgent need for a battery production line capable of automatic production to solve the above problems. Summary of the Invention

[0004] An embodiment of the present invention provides a production line for square electric cores to solve the problems that in the production of existing battery packs, many steps need to be manually processed, which not only has low safety, but also seriously affects the production efficiency and is difficult to ensure the production quality of the batteries.

[0005] The present invention provides a production line for square electric cores, including: an electric core section processing system, a module section processing system, and a Pack section processing system arranged in sequence along the processing direction; the electric core section processing system includes an electric core transfer device, an electric core gluing device, and a separator feeding device arranged in sequence along the processing direction, the electric core transfer device is used to load the electric cores onto the line, the electric core gluing device is used to glue the electric cores, and the separator feeding device is used to feed the separators onto the line so that the separators are pasted onto the electric cores; the module section processing system includes an electric core module stacking device, an electric core module bundling and squeezing device, a busbar welding device, and an electric core module clamping device arranged in sequence along the processing direction, the electric core module stacking device is used to stack the electric cores after the installation of the separators to form an electric core module, the electric core module bundling and squeezing device is used to shape the electric core module, the busbar welding device is used to weld the busbars of the shaped electric core module, and the electric core module clamping device is used to transfer the electric core module; the Pack section processing system is used to pack the processed electric core modules.

[0006] The square battery cell production line provided by the present invention includes a battery cell processing system, a module processing system, and a Pack processing system. The battery cell processing system includes a battery cell transfer device, a battery cell gluing device, and a separator feeding device arranged in sequence along the processing direction. The battery cell transfer device is used to load the battery cells onto the production line, the battery cell gluing device is used to apply glue to the battery cells, and the separator feeding device is used to load the separators onto the production line so that the separators are pasted onto the battery cells. The module processing system includes a battery cell module stacking device, a battery cell module bundling and squeezing device, a bus bar welding device, and a battery cell module clamping device arranged in sequence along the processing direction. The battery cell module stacking device is used to stack the battery cells with the separators installed to form a battery cell module. The battery cell module bundling and squeezing device is used to shape the battery cell module. The bus bar welding device is used to weld the bus bars of the shaped battery cell module. The battery cell module clamping device is used to transfer the battery cell module. The Pack processing system is used to pack the processed battery cell modules. Thus, the processing of the battery cell section, the module section, and the Pack section of the battery is automatically completed, greatly improving the production efficiency of the battery cells. Description of the Drawings

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0008] Figure 1 It is a schematic diagram of the square battery cell production line provided by an embodiment of the present invention;

[0009] Figure 2 It is a schematic diagram of the battery cell transfer device provided by an embodiment of the present invention;

[0010] Figure 3 It is one of the schematic diagrams of the battery cell variable pitch grasping mechanism provided by an embodiment of the present invention;

[0011] Figure 4 It is another schematic diagram of the battery cell variable pitch grasping mechanism provided by an embodiment of the present invention;

[0012] Figure 5 It is yet another schematic diagram of the battery cell variable pitch grasping mechanism provided by an embodiment of the present invention;

[0013] Figure 6 It is still another schematic diagram of the battery cell variable pitch grasping mechanism provided by an embodiment of the present invention;

[0014] Figure 7 It is a schematic diagram of the battery cell gluing device provided by an embodiment of the present invention;

[0015] Figure 8 It is a schematic diagram of a partition feeding device provided by an embodiment of the present invention;

[0016] Figure 9 It is a three-dimensional structure schematic diagram of a battery cell module stacking device provided by the present invention;

[0017] Figure 10 is Figure 9 a schematic diagram of the structure of the mounting plate in

[0018] Figure 11 is Figure 9 a schematic diagram of the structure of the positioning component in

[0019] Figure 12 is Figure 9 a three-dimensional structure schematic diagram of the battery cell fixture in

[0020] Figure 13 is Figure 9 a three-dimensional structure schematic diagram of an embodiment of the battery cell group stacking device in

[0021] Figure 14 It is a schematic diagram of the structure of a battery cell module extrusion and bundling device provided by the present invention;

[0022] Figure 15 It is a schematic diagram of the structure of a pressing mechanism provided by the present invention;

[0023] Figure 16 It is a schematic diagram of the structure of a transfer mechanism provided by the present invention;

[0024] Figure 17 It is a schematic diagram of the structure of a first shaping component provided by the present invention;

[0025] Figure 18 It is a schematic diagram of the structure of a battery cell module clamping device provided by the present invention;

[0026] Figure 19 It is one of the partial structure schematic diagrams of a battery cell module clamping device provided by the present invention;

[0027] Figure 20 It is the second of the partial structure schematic diagrams of a battery cell module clamping device provided by the present invention;

[0028] Figure 21 It is provided by the present invention Figure 20 a partial structure schematic diagram of area A in

[0029] Reference numerals

[0030] 1. Battery cell segment processing system;

[0031] 11. Cell transfer device; 1110. Square cell; 1120. Material tray; 1130. Robotic arm; 1140. Grasping mechanism; 11401. Base; 11402. Variable pitch assembly; 114021. Fixed block; 114022. Sliding block; 114023. First driving assembly; 114024. Cell clamp; 114025. Limiting rod; 114026. Limiting member; 1140 27. First slider; 114028. Second slider; 114029. Third slider; 114030. Fourth slider; 11403. Clamping assembly; 1150. Off-disk mechanism; 11501. Off-disk assembly; 11502. Second drive assembly; 1160. Tray grabbing mechanism; 11601. Tray clamping claw; 11602. Third drive assembly; 1170. Visual inspection mechanism;

[0032] 12. Cell glue sticking device; 1211. Unwinding roll; 1212. Rewinding roll; 1213. Roller assembly; 1214. Driving motor;

[0033] 13. Partition loading device; 1311. Partition loading device; 1312. Conveyor line; 1313. Partition online device; 1314. Partition cleaning device; 1315. Partition installation device; 13111. Feeding vehicle; 13112. Vehicle guide positioning mechanism; 13113. Air duct partition storage unit; 13114. Guide wheel; 13131. First drive mechanism; 13132. Material taking mechanism; 13141. Partition cleaning mechanism; 13142. Partition flipping mechanism; 13151. Second drive mechanism; 13152. Assembly mechanism;

[0034] 2. Module segment processing system; 21. Cell module stacking device; 211. Mounting plate; 2111. Pad; 2112. Slide rail; 212. Positioning assembly; 2121. Positioning plate; 2122. Supporting pad; 2123. Positioning jaws; 213. Cell fixture; 2131. Fixture bracket; 21321. Cell claws; 21322. First driving member; 21331. Centering jaws; 21332. Driving assembly; 21341. Extrusion member; 21342. Second driving member; 214. Lifting member; 2151. Frame; 2152. Turntable bracket;

[0035] 22. Battery cell module bundling and pressing device; 221. Bench; 2211. Slide table; 222. Transfer mechanism; 2221. Pressing assembly; 22211. First pressing head; 22212. Second pressing head; 22213. Third driving part; 2222. Steel belt prefabrication groove; 223. Shaping mechanism; 2231. First shaping assembly; 22311. Shaping plate; 22312. Second driving part; 22313. Guide rail; 22314. Limiting structure; 224. Battery cell module; 225. Pressing-down mechanism; 2251. Mounting frame; 2252. First driving part; 2253. Pressing-down head; 2254. Guiding structure; 226. Pressure sensor;

[0036] 23. Busbar welding device; 24. Battery cell module clamping device; 241. First side pressing plate; 2421. First end plate; 2422. Second end plate; 243. Claw; 244. Mounting plate; 245. First fixing part; 246. Second fixing part; 247. Limiting part; 248. Driving part; 249. First cylinder; 2410. Second cylinder; 2411. Spacer; 2412. Connecting part; 2413. Manipulator; 2414. Battery cell module; 3. Pack section processing system; 31. Box loading station; 32. Battery cell module into-box station; 33. Accessory installation station; 34. Testing station. Detailed implementation mode

[0037] The following combines Figures 1 to 3 to describe the square battery cell production line provided by the present invention.

[0038] As Figure 1 shown, the square battery cell production line provided by the present invention includes: a battery cell section processing system 1, a module section processing system 2, and a Pack section processing system 3.

[0039] In this embodiment, the battery cell section processing system 1, the module section processing system 2, and the Pack section processing system 3 are arranged in sequence along the processing direction. The battery cell section processing system 1 includes a battery cell transfer device 11, a battery cell gluing device 12, and a separator loading device 13 arranged in sequence along the processing direction. The battery cell transfer device 11 is used to load the battery cells onto the production line, the battery cell gluing device 12 is used to glue the battery cells, and the separator loading device 13 is used to load the separators onto the production line so that the separators are pasted onto the battery cells; the module section processing system 2 includes a battery cell module stacking device 21, a battery cell module bundling and pressing device 22, a busbar welding device 23, and a battery cell module clamping device 24 arranged in sequence along the processing direction. The battery cell module stacking device 21 is used to stack the battery cells with the separators installed to form a battery cell module, the battery cell module bundling and pressing device 22 is used to shape the battery cell module, the busbar welding device 23 is used to weld the busbars of the shaped battery cell module, and the battery cell module clamping device 24 is used to transfer the battery cell module; the Pack section processing system 3 is used to pack the processed battery cell modules into boxes.

[0040] During the operation of the square battery cell production line, the processing of the battery cell section is carried out first. The battery cell transfer device 11 is used to load the battery cells onto the production line. After the battery cells are loaded, the battery cell gluing device 12 glues the battery cells. After the gluing is completed, the separator feeding device 13 feeds the separators onto the production line so that the separators are pasted onto the battery cells, thus completing the processing of the battery cell section by the battery cell section processing system 1. After the processing of the battery cell section is completed, the processing of the module section starts. The battery cell module stacking device 21 stacks the battery cells with the separators installed to form a battery cell module. After the stacking is completed, the battery cell module bundling and squeezing device 22 shapes the stacked battery cell modules. The busbar welding device 23 welds the busbars of the shaped battery cell modules. After the busbar welding is completed, the battery cell module clamping device 24 transfers the battery cell modules to the Pack section processing system 3. After the processing of the module section is completed, the Pack section processing system 3 packs the processed battery cell modules into boxes.

[0041] The square battery cell production line provided by the present invention includes a battery cell section processing system, a module section processing system, and a Pack section processing system. The battery cell section processing system includes a battery cell transfer device, a battery cell gluing device, and a separator feeding device arranged in sequence along the processing direction. The battery cell transfer device is used to load the battery cells onto the production line, the battery cell gluing device is used to glue the battery cells, and the separator feeding device is used to feed the separators onto the production line so that the separators are pasted onto the battery cells. The module section processing system includes a battery cell module stacking device, a battery cell module bundling and squeezing device, a busbar welding device, and a battery cell module clamping device arranged in sequence along the processing direction. The battery cell module stacking device is used to stack the battery cells with the separators installed to form a battery cell module, the battery cell module bundling and squeezing device is used to shape the battery cell modules, the busbar welding device is used to weld the busbars of the shaped battery cell modules, and the battery cell module clamping device is used to transfer the battery cell modules. The Pack section processing system is used to pack the processed battery cell modules into boxes. Thus, the processing of the battery cell section, module section, and Pack section of the battery is automatically completed, greatly improving the production efficiency of the battery cells.

[0042] In one embodiment, as Figure 1As shown in the figure, the Pack section processing system 3 is provided with a box loading workstation 31, a battery cell module loading workstation 32, an accessory installation workstation 33, and a testing workstation 34 arranged in sequence along the processing direction; the box loading workstation 31 is used to transfer the box to the production line, the battery cell module loading workstation 32 is used to import the battery cell module into the box, the accessory installation workstation 33 is used to install the accessories of the battery cell module, and the testing workstation 34 is used to test the battery cell module after the installation is completed. Specifically, after the processing of the module section is completed, the box is first transferred to the production line through the box loading workstation 31, and the box loading workstation 31 is mainly composed of equipment such as a material rack and a vacuum cleaner. The box is cleaned by using the vacuum cleaner, and the box is inserted into the production line by the cantilever crane. At the same time, the cantilever crane, barcode scanner, all-in-one machine and other equipment can also be used at the box loading workstation 31 to lift the module by the cantilever crane and put it into the box. After the loading into the box is completed, the accessory installation workstation 33 can be used to install the accessories of the battery cell module, and after the installation is completed, the installed battery cell module is tested at the testing workstation 34. The testing workstation 34 is mainly composed of EOL (End-of-life) testing equipment, barcode scanner, tablet computer and other equipment. The packing is confirmed by scanning the code, the wire harness is inserted into the packing assembly, and the testing equipment completes various tests of the packing and uploads and binds the test data. The main test items: capacity test, ground impedance, insulation of total positive and total negative to ground, withstand voltage of total positive and total negative to ground, withstand voltage of total positive and total negative to communication port, single cell voltage difference detection, serial number writing, SOC calibration, etc.

[0043] In a specific embodiment, as Figure 1As shown in the figure, the working process of the square battery cell production line includes the following steps: First, process the battery cell section. Use the battery cell transfer device 11 to load the battery cells onto the production line, perform barcode scanning and OCA testing. Then, use the battery cell gluing device 12 to perform plasma cleaning on one side of the battery cell. After the cleaning is completed, flip the battery cell and perform plasma cleaning on the other side of the battery cell. After the cleaning is completed, glue and detect one side of the battery cell, and glue and detect the other side of the battery cell after flipping. At the same time, the separator feeding device 13 processes the air duct separator for feeding, performs plasma cleaning on one side of it. After the cleaning is completed, flip the air duct separator and perform plasma cleaning on the other side of the air duct separator, paste the air duct separator on the battery cell, and scan the barcode of the battery cell with the air duct separator pasted on it, thus completing the processing of the battery cell section by the battery cell section processing system 1. After completing the processing of the battery cell section, the module section processing system 2 starts to process the module section. Use the battery cell module stacking device 21 to stack the battery cells with the separators installed to form a battery cell module. After the stacking is completed, the battery cell module bundling and squeezing device 22 shapes the stacked battery cell modules and uses a laser to perform laser coding on the stacked battery cells. Perform pole addressing laser cleaning on the battery cell module and install the CCS component. Then, use the busbar welding device 23 to weld the busbars of the battery cell modules. After the welding is completed, perform post-welding inspection, manual inspection, and module EOL testing. Finally, use the battery cell module clamping device 24 to transfer the battery cell module to the Pack section processing system 3. After completing the processing of the module section, first use the box loading station 31 to transfer the box to the production line. The box loading station 31 cleans the box and transfers it to the production line. The battery cell module loading into box station 32 is used to import the battery cell module into the box. The accessory installation station 33 is used to install the accessories of the battery cell module, set the wind cover, front panel, fastening series copper bars, etc. on the battery cell module, perform torque recheck, and install the insulating upper cover. After the installation is completed, perform EOL testing on the Packed battery cell module. After the testing is completed, unload the qualified battery cell modules from the production line.

[0044] As Figures 2 to 6 shown, the battery cell transfer device 11 provided by the present invention is arranged on one side of the battery cell loading area, the battery cell processing area, and the tray placement area. There is a tray 1120 in the battery cell loading area and a square battery cell 1110 placed in the tray 1120.

[0045] In this embodiment, the battery cell transfer device 11 includes: a robotic arm 1130, a battery cell pitch-changing gripping mechanism 1140, and a tray-removing mechanism 1150. The battery cell pitch-changing gripping mechanism 1140 includes a base 11401, a pitch-changing assembly 11402, and a gripping assembly 11403. The base 11401 is installed on the robotic arm 1130. The pitch-changing assembly 11402 is installed on the base 11401 and changes pitch along the extension direction of the base 11401. The gripping assembly 11403 is installed on the pitch-changing assembly 11402. The gripping assembly 11403 is used to grip the square battery cells 1110 on the tray 1120. The tray-removing mechanism 1150 is connected to the base 11401. When the gripping assembly 11403 grips the square battery cells 1110, the tray-removing mechanism 1150 squeezes the tray 1120 to separate the square battery cells 1110 from the tray 1120.

[0046] Specifically, the pitch-changing assembly 11402 can slide in the extension direction of the base 11401. Since the gripping assembly 11403 is installed on the pitch-changing assembly 11402, during the sliding process of the pitch-changing assembly 11402, the position of the gripping assembly 11403 can be further adjusted so that the gripping assembly 11403 can grip the square battery cells 1110 in the tray 1120. Since the square battery cells 1110 are arranged in the tray 1120, to prevent the tray 1120 from moving when gripping the square battery cells 1110, the tray-removing mechanism 1150 is connected to the base 11401. When the gripping assembly 11403 grips the square battery cells 1110, the tray-removing mechanism 1150 squeezes the tray 1120 to separate the square battery cells 1110 from the tray 1120. After the operator uses a manual forklift to transport the full stack of battery cells to the battery cell loading area, the battery cell transfer device detects the position of the square battery cells 1110 in the tray 1120. The battery cell transfer device first controls the positions of the pitch-changing assembly 11402, the gripping assembly 11403, and the tray-removing mechanism 1150 through the robotic arm 1130, so that the pitch-changing assembly 11402, the gripping assembly 11403, and the tray-removing mechanism 1150 are located above the square battery cells 1110. Then, it controls the pitch-changing assembly 11402 to slide in the extension direction of the base 11401, so that the gripping assembly 11403 on the pitch-changing assembly 11402 aligns with the battery cells. The gripping assembly 11403 can grip one or more columns of square battery cells 1110 at a time and transfer the square battery cells 1110 to the battery cell processing area. The gripping assembly 11403 sequentially picks up the remaining battery cells. When picking up the last column of square battery cells 1110, it is easy to lift the tray 1120 when picking up the square battery cells 1110. At this time, the tray-removing mechanism 1150 is needed to assist the gripping assembly 11403. The tray-removing mechanism 1150 squeezes the tray 1120 to separate the square battery cells 1110 from the tray 1120.

[0047] In one example, as Figures 2 to 6As shown in the figure, the battery cell transfer device further includes: a tray gripping mechanism 1160, which is installed on the base 11401. The tray gripping mechanism 1160 is used to grip the tray 1120 and transfer the tray 1120 in the battery cell loading area to the tray placement area.

[0048] Specifically, the tray gripping mechanism 1160 includes: a tray jaw 11601 and a third driving component 11602. The third driving component 11602 can be a driving cylinder or a driving motor. The third driving component 11602 is connected to the base 11401, and the tray jaw 11601 is movably connected to the base 11401 along a direction perpendicular to the base 11401 through the third driving component 11602.

[0049] After the transfer of the square battery cells 1110 on a tray 1120 is completed, the battery cell transfer device detects the position of the tray 1120. The battery cell transfer device first adjusts the position of the tray jaw 11601 through the robotic arm 1130 to align the tray jaw 11601 with the tray 1120, and then the third driving component 11602 drives the tray jaw 11601 to move downward to grip the tray 1120 with the tray jaw 11601, and transfer the tray 1120 in the battery cell loading area to the tray placement area. In one embodiment, such as Figures 2 to 6As shown, the pitch-changing component 11402 includes a fixed block 114021, a slider 114022, and a first driving component 114023. The fixed block 114021 is fixedly connected to one end of the base 11401. The slider 114022 is slidably mounted on the base 11401. The first driving component 114023 is mounted on the base 11401, and the output end of the first driving component 114023 is connected to the slider 114022 to enable the slider 114022 to slide along the extending direction of the base 11401. The fixed block 114021 and the slider 114022 are both provided with battery cell grippers 114024. The first driving component 114023 can adopt a cylinder or a motor. Since the fixed block 114021 and the slider 114022 are both provided with battery cell grippers 114024, when the pitch between the battery cell grippers 114024 needs to be adjusted, the slider 114022 can be controlled by the first driving component 114023 to slide on the base 11401, so that the battery cell grippers 114024 on the fixed block 114021 and the slider 114022 are aligned with a row of square battery cells 1110 on the tray 1120, thereby enabling multiple square battery cells 1110 to be transported simultaneously. To limit the movement of the slider 114022, the pitch-changing component further includes a limit pull rod 114025. The limit pull rod 114025 is disposed between the slider 114022 and the fixed block 114021. Limit members 114026 for limiting are provided at both ends of the limit pull rod 114025 for abutting against the slider 114022 and the fixed block 114021. Through holes for the limit pull rod 114025 to pass through are provided on both the slider 114022 and the fixed block 114021. In this embodiment, when the first driving component 114023 drives the slider 114022 to slide on the base 11401, when the slider 114022 moves away from the fixed block 114021, the slider 114022 drives the limit pull rod 114025 to move away from the fixed block 114021 through the limit member 114026 at one end of the limit pull rod 114025. When the slider 114022 moves a certain distance, the limit member 114026 at the other end of the limit pull rod 114025 abuts against the fixed block 114021, and the slider 114022 stops sliding. At this time, the slider 114022 slides to the maximum pitch relative to the fixed block 114021. When the slider 114022 moves towards the fixed block 114021, the limit pull rod 114025 and the limit members 114026 at both ends thereof do not limit the slider 114022 until the slider 114022 abuts against the fixed block 114021. At this time, the slider 114022 slides to the minimum pitch relative to the fixed block 114021. The distance between the slider 114022 and the fixed block 114021 can be adjusted as needed to meet different pitch requirements for the battery cell grippers 114024. Based on the above embodiments, in one embodiment, as Figures 2 to 6As shown in the figure, to improve the transfer efficiency, there are multiple limiting tie rods 114025 and sliders 114022. Each slider 114022 is provided with a battery cell gripper 114024. The fixed block 114021 and multiple sliders 114022 are arranged in sequence. The fixed block 114021 is fixedly connected to the base 11401, and multiple sliders 114022 are slidably arranged on the base 11401 in sequence. Limiting tie rods 114025 are provided between adjacent sliders 114022 and between the slider 114022 and the fixed block 114021. One or more limiting tie rods 114025 and sliders 114022 can be set according to needs to meet the transfer of multiple square battery cells 1110 at the same time. In a specific embodiment, there are four sliders 114022, namely the first slider 114027, the second slider 114028, the third slider 114029, and the fourth slider 114030. The fixed block 114021, the first slider 114027, the second slider 114028, the third slider 114029, and the fourth slider 114030 are arranged in sequence. There are four limiting tie rods 114025, namely the first limiting tie rod, the second limiting tie rod, the third limiting tie rod, and the fourth limiting tie rod. The first limiting tie rod is provided between the fixed block 114021 and the first slider 114027, the second limiting tie rod is provided between the first slider 114027 and the second slider 114028, the third limiting tie rod is provided between the second slider 114028 and the third slider 114029, and the fourth limiting tie rod is provided between the third slider 114029 and the fourth slider 114030. The fourth slider 114030 is connected to the driving end of the first driving component 114023, and the first driving component 114023 is arranged on the fixed block 114021. When the first driving component 114023 drives the fourth slider 114030 to move away from the fixed block 114021, with the first driving component 114023 as the power, after the fourth slider 114030 reaches the specified position, the fourth limiting tie rod pulls the third slider 114029 to slide. After the third slider 114029 reaches the specified position, the third limiting tie rod pulls the second slider 114028 to slide. After the second slider 114028 reaches the specified position, the second limiting tie rod pulls the first slider 114027 to slide. After the first slider 114027 reaches the specified position, until it reaches the final required position, the first limiting tie rod limits the first slider 114027 to complete the equal variable distance positions of each slider. At this time, the battery cell grippers 114024 on the fixed block 114021, the first slider 114027, the second slider 114028, the third slider 114029, and the fourth slider 114030 can be used to clamp a row of square battery cells 1110 and transfer the square battery cells 1110 to the battery cell processing area.When the first driving component 114023 drives the fourth slider 114030 to move towards the fixed block 114021, with the first driving component 114023 as the power, after the fourth slider 114030 moves back to a certain position, the third slider 114029 blocks and limits it. The fourth slider 114030 pushes the third slider 114029 to move. After the third slider 114029 moves back to a certain position, the second slider 114028 blocks and limits it. The third slider 114029 pushes the second slider 114028 to move. After the second slider 114028 moves back to a certain position, the first slider 114027 blocks and limits it. The second slider 114028 pushes the first slider 114027 to move. After the first slider 114027 moves back to a certain position and contacts the fixed block 114021, under the limitation of the fixed block 114021, the first slider 114027, the second slider 114028, the third slider 114029 and the fourth slider 114030 stop moving, completing the equal variable pitch positions of each slider. Similarly, at this time, the square battery cells 1110 in a row can be clamped by the battery cell clamping jaws 114024 on the fixed block 114021, the first slider 114027, the second slider 114028, the third slider 114029 and the fourth slider 114030, and the square battery cells 1110 are transported to the battery cell processing area.

[0050] In one embodiment, as Figures 2 to 6 shown, the battery cell transfer device further includes: a vision detection mechanism 1170. The vision detection mechanism 1170 is connected to the base 11401, and the vision detection mechanism 1170 is used to detect the position of the square battery cells 1110 on the tray 1120. The vision detection mechanism 1170 detects the position of the square battery cells 1110 in the tray 1120. The battery cell transfer device first controls the positions of the variable pitch component 11402, the clamping component 11403 and the tray removal mechanism 1150 through the robotic arm 1130, so that the variable pitch component 11402, the clamping component 11403 and the tray removal mechanism 1150 are located above the square battery cells 1110. Then, it controls the variable pitch component 11402 to slide in the extending direction of the base 11401, so that the clamping component 11403 on the variable pitch component 11402 is aligned with the battery cells. The clamping component 11403 can grab one row or multiple rows of square battery cells 1110 at a time, and transports the square battery cells 1110 to the battery cell processing area. The clamping component 11403 sequentially picks up the remaining battery cells. When picking up the last row of square battery cells 1110, it is easy to lift the tray 1120 when picking up the square battery cells 1110. At this time, the tray removal mechanism 1150 is needed to assist the clamping component 11403, and the tray removal mechanism 1150 squeezes the tray 1120 to separate the square battery cells 1110 from the tray 1120.

[0051] The off-disc mechanism 1150 includes: an off-disc assembly 11501 and a second drive assembly 11502, the second drive assembly 11502 is connected to the base 11401, the off-disc assembly 11501 is movably connected to the base 11401 in a direction perpendicular to the base 11401 through the second drive assembly 11502, and when the off-disc assembly 11501 moves downward, a part of the off-disc assembly 11501 extends to one side of the clamping assembly 11403.

[0052] The second driving component 11502 can be a cylinder or a motor. An elastic stopper is provided at the end of the tray-off component 11501. When the tray-off component 11501 moves downward, the elastic stopper extends to one side of the clamping component 11403. Specifically, when the last row of square cells 1110 is taken, the second driving component 11502 controls the tray-off component 11501 to move downward. When the elastic stopper on the tray-off component 11501 contacts the tray 1120, the elastic stopper squeezes the tray 1120 to separate the square cells 1110 from the tray 1120.

[0053] In one embodiment, if Figure 7 As shown in FIG. 1 , the cell gluing device 12 comprises: a driving motor 1214, a material unwinding roll 1211, a material receiving roll 1212 and a roller assembly 1213; the material unwinding roll 1211 is used to supply a material strip comprising release paper and a segmented adhesive film, one end of the material strip is wound around the material unwinding roll 1211, and the other end of the material strip is wound around the material receiving roll 1212 through the roller assembly 1213, and the driving motor 1214 is in transmission connection with the material receiving roll 1212 and the roller assembly 1213. The driving motor 1214 is connected to the material collection roll 1212 in a transmission manner. The other end of the material belt is wound around the material collection roll 1212. The driving motor 1214 drives the material collection roll 1212 to rotate clockwise during rotation. The material collection roll 1212 drives the material belt to rotate during rotation, so that the material belt is continuously wound around the material collection roll 1212. Driven by the material belt, the unwinding roll 1211 rotates with the material belt, and the material belt is delivered to the material collection roll 1212 through the roller assembly 1213. The material collection roll 1212 completes the material collection work after the gluing is completed. The roller assembly 1213 is arranged between the unwinding roll 1211 and the material collection roll 1212 to limit the movement path and direction of the material belt, so that the material belt can be close to the gluing position of the battery cell during movement, so that the adhesive film on the material belt is attached to the battery cell to complete the gluing.

[0054] In one embodiment, if Figure 8 ​As shown in the figure, the separator loading device 13 includes a separator feeding device 1313, a conveyor line 1312, and a separator feeding device 1313, a separator cleaning device 1314, and a separator mounting device 1315 arranged in sequence along the transportation direction of the conveyor line 1312; the separator feeding device 1313 is arranged on one side of the feeding end of the conveyor line 1312; the separator feeding device 1313 is arranged at the feeding end of the conveyor line 1312 and is used to transfer the air duct separator on the separator feeding device 1313 to the conveyor line 1312; the conveyor line 1312 is used to convey the air duct separator; the separator cleaning device 1314 includes two separator cleaning mechanisms 13141 and a separator flipping mechanism 13142; the separator flipping mechanism 13142 is arranged between the two separator cleaning mechanisms 13141; the separator mounting device 1315 is arranged at the discharging end of the conveyor line 1312 and is used to mount the air duct separator on the square battery cell.

[0055] Specifically, as Figure 8 shown in the figure, the separator feeding device 1313 includes a feeding cart 13111 and a cart guiding and positioning mechanism 13112. An air duct separator storage part 13113 is arranged on the feeding cart 13111. The cart guiding and positioning mechanism 13112 is arranged on one side of the feeding end of the conveyor line 1312, and the cart guiding and positioning mechanism 13112 is arranged corresponding to the feeding cart 13111. The feeding cart 13111 is used to transport the air duct separator from the storage place to one side of the feeding end of the conveyor line 1312; by arranging the air duct separator storage part 13113 on the feeding cart 13111 to store a certain number of air duct separators, the number of round trips of the feeding cart 13111 is reduced, and the feeding efficiency is improved; by arranging the cart guiding and positioning mechanism 13112, it plays a role of guiding and positioning the feeding cart 13111, so that the feeding cart 13111 can transport the air duct separator to a fixed position on one side of the feeding end of the conveyor line 1312, so as to facilitate the separator feeding device 1313 to position and transfer the air duct separator, which is beneficial to improving the transfer efficiency and reliability. As Figure 8 shown in the figure, the separator feeding device includes a first driving mechanism 13131 and a material taking mechanism 13132. The material taking mechanism 13132 is arranged on the first driving mechanism 13131, and the first driving mechanism 13131 is used to drive the material taking mechanism 13132 to move to adjust the position. The first driving mechanism 13131 can drive the material taking mechanism 13132 to adjust the position, so as to align with the air duct separator on the separator loading device 13, so as to grab or suck the air duct separator and transfer it to the conveyor line 1312. As Figure 8As shown in the figure, the first driving mechanism 13131 includes a first Z-axis driving member, a first X-axis driving member, and two first Y-axis driving members. The Z-axis is in the vertical direction, the X-axis is in the conveying direction of the conveying line 1312, and the Y-axis is perpendicular to both the Z-axis and the X-axis. The first Z-axis driving member is connected to the material taking mechanism 13132 and is used to drive the material taking mechanism 13132 to move in the Z-axis direction. The first X-axis driving member is connected to the first Z-axis driving member and is used to drive the material taking mechanism 13132 and the first Z-axis driving member to move in the X-axis direction. The two first Y-axis driving members are arranged side by side in the X-axis direction and are connected to both ends of the bottom of the first X-axis driving member, and are used to drive the material taking mechanism 13132, the first Z-axis driving member, and the first X-axis driving member to move in the Y-axis direction. The first Z-axis driving member, the first X-axis driving member, and the first Y-axis driving member respectively drive the material taking mechanism 13132 to move in the Z-axis, X-axis, and Y-axis directions to adjust the position of the material taking mechanism 13132. The partition online device 1313 includes a plurality of material taking mechanisms 13132. The material taking mechanisms 13132 are arranged corresponding to the air duct partitions on the partition online device. The material taking mechanisms 13132 are provided with material taking suction cups, and the material taking suction cups are used to suck the air duct partitions on the partition online device and transfer them to the conveying line 1312. By providing a plurality of material taking mechanisms 13132 and the material taking mechanisms 13132 are provided with material taking suction cups, a plurality of air duct partitions can be sucked at one time and transferred to the conveying line 1312, effectively improving the transfer efficiency and being beneficial to reducing the production beat.

[0056] Based on the above embodiments, in one embodiment, as Figures 9 to 13 shown, the battery cell module stacking device 21 includes: a mounting plate 211, a positioning assembly 212, and a battery cell clamp 213; the mounting plate 211 has a bearing surface, and the mounting plate 211 has a stacking end and a loading end that are oppositely arranged along a first direction of the bearing surface; the positioning assembly 212 includes a positioning plate 2121 provided at the stacking end, and a stacking surface is formed on the side wall surface of the positioning plate 2121 facing the loading end. The stacking surface and the bearing surface are used to jointly bear the battery cell A; the battery cell clamp 213 is movably arranged on the bearing surface along the first direction, and the battery cell clamp 213 has a moving stroke that reciprocates between the loading end and the stacking end; wherein, the battery cell clamp 213 is used to receive the battery cell A at the loading end and clamp the battery cell A to move towards the stacking end, so as to stack the battery cell A on the stacking surface along the first direction.

[0057] Furthermore, as Figures 9 to 13As shown, a backing plate 2111 is convexly provided on the bearing surface. The backing plate 2111 extends along the first direction, and one end extends to the stacking end. The end face of the backing plate 2111 facing away from the bearing surface is used to carry the battery cell A, and an avoidance space is formed between the side wall surface of the backing plate 2111 and the bearing surface. In this embodiment, by using the backing plate 2111 to carry the battery cell A, a gap is formed between the battery cell A and the bearing surface, so as to facilitate the movement of the battery cell A driven by the battery cell fixture 213, or during the subsequent process of the blanking device removing the battery cell module, components such as the clamping jaws can extend between the battery cell A and the bearing surface to grab the battery cell A. It should be noted that the battery cell A is carried on the end face of the backing plate 2111 facing away from the bearing surface, and an avoidance space is formed between the side wall surface of the backing plate and the bearing surface. In the present invention, the first direction is the length direction of the backing plate 2111, the direction perpendicular to the bearing surface is the thickness direction of the backing plate 2111, avoidance spaces are formed on both sides in the width direction of the backing plate 2111, and the width of the backing plate 2111 is smaller than the width of the battery cell.

[0058] In an embodiment provided by the present invention, the battery cell fixture 213 includes a pawl assembly for jointly lifting the battery cell A. The pawl assembly includes a first supporting portion and a second supporting portion. The first supporting portion extends along the first direction, and the second supporting portion is arranged perpendicular to the bearing surface, forming an L-shaped structure. In this embodiment, since the battery cell A is placed between the first supporting portion and the second supporting portion, the battery cell A cannot be directly attached to the bearing surface. At this time, through the backing plate 2111, the battery cell A can be attached to the backing plate 2111, and at the same time, the first supporting portion can move along the avoidance space, facilitating the cooperation with the battery cell fixture 213; at the same time, when the battery cell module is removed subsequently, the external clamping jaws can extend into the avoidance space to clamp the battery cell.

[0059] In the embodiment provided by the present invention, the battery cell module stacking device 21 includes a lifting member 214. The lifting member 214 is movably installed on the bearing surface along the direction perpendicular to the bearing surface, and is located between the stacking end and the feeding end. The end face of the lifting member 214 facing away from the bearing surface is used to lift the upper end plate. After the battery cells are stacked, it is necessary to place the upper end plate at the end of the battery cell stack. When the cross-sectional size of the upper end plate is smaller than the cross-sectional size of the battery cell A, the upper end plate cannot be located at the center position of the battery cell A. In this embodiment, the upper end plate is lifted along the direction away from the bearing surface by the lifting member 214, so that the upper end plate remains at the center position of the battery cell A, avoiding the position difference between the two due to the upper end plate being closely attached to the bearing surface.

[0060] Specifically, in this embodiment, the bearing surface is correspondingly recessed with an installation groove, and the lifting member 214 is telescopically arranged in the installation groove. By installing the lifting member 214 through the installation groove, when the lifting member 214 does not need to adjust the position of the upper end plate, it can directly retract into the installation groove without affecting the normal placement of the upper end plate. When lifting is required, after the battery cells are stacked to a specified height, that is, the position where the lifting member 214 is located, the lifting member 214 protrudes to support the upper end plate and push the upper end plate out to the same position as the center of the battery cell A. It should be noted that, in this embodiment, the lifting member 214 is a lifting block to facilitate the lifting of the upper end plate. In addition, in this embodiment, a lifting member is also provided at the loading end to facilitate adjusting the position of the upper end plate on the battery cell fixture 213 when the battery cell fixture 213 at the loading end obtains the battery cell. There are various ways for the telescopic movement of the lifting member 214, such as through a cylinder or a motor, etc., as long as it can achieve the reciprocating movement of the lifting member 214 along the direction perpendicular to the bearing surface, and no specific limitation is made in the present invention. It should be noted that multiple supporting cushion blocks 2122 can be provided, and the multiple supporting cushion blocks 2122 are jointly used to support the lower end plate. In addition, there are various implementation manners for the material of the supporting cushion blocks 2122, such as through industrial rubber, etc., and no specific limitation is made here. On the other hand, the positioning assembly 212 further includes two positioning jaws 2123 spaced apart along the second direction of the bearing surface. The two positioning jaws 2123 are respectively arranged on both sides of the positioning plate 2121, and the two positioning jaws 2123 have a moving stroke of approaching or separating from each other, and the two positioning jaws 2123 are used to clamp the battery cell therebetween; wherein, the first direction and the second direction are perpendicularly arranged. In this embodiment, after the lower end plate and the battery cell A are placed on the positioning plate 2121, the two positioning jaws 2123 are used to clamp the battery cell or the lower end plate on the positioning plate 2121, and then the position of the lower end plate or the battery cell is centered and adjusted to ensure the stacking basis of the battery cells, and to avoid incorrect stacking due to the deviation of the bottom position during the subsequent stacking of the battery cells. At the same time, the position of the lower end plate is fixed by the positioning jaws 2123 to avoid shaking during the stacking process and the movement process of the entire mounting plate. It should be noted that the two positioning jaws 2123 are both installed on the mounting plate 211 to save space. In this embodiment, the two positioning jaws 2123 are respectively on both sides of the positioning plate 2121, and the positioning assembly 212 further includes a driving device, and the driving device drives the two positioning jaws 2123 to move. In addition, in order to avoid the driving device affecting the stacking of the positioning plate 2121, the driving device is located on the side of the positioning plate 2121 facing away from the loading end.On the other hand, the battery cell fixture 213 further includes a fixture bracket 2131, a pawl assembly, and a centering assembly; the fixture bracket 2131 is movably disposed on the bearing surface along the first direction; the pawl assembly is mounted on the fixture bracket, and a battery cell storage space is formed on the pawl assembly for supporting the battery cell; the centering assembly is mounted on the fixture bracket, and the centering assembly can approach or move away from the pawl assembly, and a battery cell clamping space is formed on the centering assembly for clamping the side wall of the battery cell. In this embodiment, the pawl assembly is provided with a battery cell storage space, and the feeding device only needs to place the battery cell in the battery cell storage space without precise alignment, improving the feeding efficiency; by providing the centering assembly, the centering assembly is provided with a battery cell clamping space, and the battery cell clamping space can pick up the battery cell from the battery cell storage space and perform centering movement to prevent the battery cell from skewing during the stacking process, improving the battery cell feeding efficiency and avoiding the battery cell from skewing during the stacking process.

[0061] In the embodiment provided by the present invention, the battery cell fixture 213 is movably disposed on the bearing surface along the first direction to convey the battery cell between the feeding end and the stacking end. Among them, there are various moving methods of the battery cell fixture 213. For example, the battery cell fixture 213 is directly driven by a driving member to reciprocate. In this embodiment, a sliding fit structure is formed between the fixture bracket 2131 and the bearing surface. The sliding fit structure includes a slide rail 2112 and a chute. The slide rail is slidably disposed in the chute. Both the slide rail 2112 and the chute extend along the first direction. Among the slide rail 2112 and the chute, one is disposed on the fixture bracket 2131 and the other is disposed on the bearing surface. The pawl assembly includes: a pair of battery cell pawls 21321 and a first driving member 21322; the first driving member 21322 is connected to the fixture bracket 2131; the first driving member 21322 is used to drive the two battery cell pawls 21321 to approach or move away from each other, so that the distance between the two battery cell pawls 21321 switches between less than a first length and greater than the first length; wherein, the first length is the length of battery cell A. When the distance between the two battery cell pawls 21321 is less than the first length, battery cell A can be placed on the two battery cell pawls 21321; when the distance between the two battery cell pawls 21321 is greater than the first length, the two battery cell pawls 21321 can avoid the stacked battery cell module to facilitate the centering and placement of the centering assembly. Further, the battery cell pawl 21321 includes: a first supporting portion and a second supporting portion, and the first supporting portion and the second supporting portion are vertically connected to form an L-shaped structure, and the bottom and side wall of battery cell A are respectively in contact with the L-shaped structure. Among them, the first supporting portion and the second supporting portion jointly define the battery cell storage space. Further, the side wall of the battery cell pawl 21321 in contact with battery cell A is provided with a roller structure, and the rolling axis of the roller is perpendicular to the moving direction of the battery cell pawl, so as to reduce the friction between the battery cell pawl and the bottom of the battery cell when the two battery cell pawls move away from each other and open during the stacking of the battery cells, preventing the shell of the battery cell from being scratched.

[0062] Further, the centering assembly includes a centering jaw 21331 and a driving assembly 21332. The driving assembly 21332 is connected to the fixture bracket. The centering jaw 21331 includes a first centering part and a second centering part. The driving assembly 21332 is connected to the first centering part and the second centering part and is used to drive the first centering part and the second centering part to approach or move away from each other, and a battery cell clamping space is formed between the first centering part and the second centering part. Among them, the driving assembly 21332 may include a plurality of driving devices, and the plurality of driving devices respectively drive the centering jaw 21331 to perform different actions, such as opening and closing the centering jaw 21331, and the overall movement of the centering jaw 21331, etc. Among them, the driving assembly 21332 may be a device well known in the art, such as a cylinder, an electric telescopic rod, etc. Specifically, the first centering part and the second centering part are arranged opposite to each other to form a clamping structure. When the first centering part and the second centering part approach each other, the side wall of the battery cell is clamped, and when the first centering part and the second centering part move away from each other, the side wall of the battery cell is relaxed. Among them, the driving assembly 21332 can perform centering adjustment during the process of the first centering part and the second centering part approaching each other according to a set program, so that the clamped battery cell A is in a straight line with the stacked battery cells A. Further, the battery cell fixture 213 further includes a pressing-down assembly. The pressing-down assembly includes a pressing member 21341 and a second driving member 21342. The second driving member 21342 is installed on the fixture bracket, and the second driving member 21342 is used to drive the pressing member 21341 to move along the first direction. Among them, after the centering jaw is opened and the battery cell is placed at the stacking position, the second driving member 21342 drives the pressing member to move downward, and the pressing member presses the battery cell to reduce the distance between the stacked battery cells, thereby completing the stacking of one battery cell.

[0063] On the other hand, a plurality of mounting plates 211 are provided. The plurality of mounting plates 211 are arranged at intervals in the second direction of the bearing surface, and the plurality of mounting plates 211 together form a stacking group; wherein, the first direction and the second direction are arranged perpendicular to each other. In this embodiment, a plurality of mounting plates 211 are arranged in the same plane at the same time to facilitate the stacking of a plurality of battery cell modules at the same time. The feeding device can feed and stack battery cells on the plurality of mounting plates 211 at the same time, improving production efficiency. In the embodiment provided by the present invention, the battery cell module stacking device 21 further includes a frame 2151 and a turntable support 2152; a feeding station and a discharging station are formed beside the frame 2151; the turntable support 2152 is rotatably arranged on the frame 2151 along the vertical axis, the mounting plate 211 is arranged on the turntable support 2152, and the rotation of the turntable support 2152 enables the bearing surface to pass through the feeding station and the discharging station. In this embodiment, the turntable support 2152 enables the mounting plate 211 to pass through the feeding station and the discharging station. During operation, the mounting plate 211 receives the battery cell A at the feeding station for stacking, and after the stacking is completed, it rotates to the discharging station for discharging, avoiding the limitation of the moving space caused by the feeding and discharging stations being on one side.

[0064] Furthermore, a plurality of mounting plates 211 are provided. The plurality of mounting plates 211 are arranged at intervals along the circumferential direction of the turntable support. In this embodiment, a plurality of mounting plates 211 are provided to facilitate feeding, stacking, and discharging at the same time. When one of the mounting plates 211 is performing feeding and stacking, another mounting plate is at the discharging station, continuing the discharging process. After the feeding, stacking, and discharging are completed, different mounting plates are switched by rotation, and then the stacked battery cell modules can continue to be discharged, and stacking can continue on the positioning plate 2121 that has completed discharging, improving the stacking efficiency of the battery cell module stacking device.

[0065] In the embodiment provided by the present invention, the feeding station and the discharging station are respectively arranged on opposite sides of the frame. Two mounting plates 211 are arranged on the turntable support 2152, and the two mounting plates 211 are respectively arranged on opposite sides of the turntable support 2152. Through the rotation of the turntable support 2152, the two mounting plates 211 are respectively at the feeding station and the discharging station. Similarly, the mounting plate 211 is inclined downward from the feeding end to the stacking end. In this embodiment, the mounting plate 211 is inclined, so that the battery cell A can naturally lean on the positioning plate 2121 and the bearing surface during the stacking process, ensuring the mutual pressing and stacking of the battery cell A, and avoiding the problem of insufficient tightness during stacking when it is completely horizontally arranged or completely vertically arranged.

[0066] Based on the above embodiments, in one example, as Figures 14 to 17As shown in the figure, the battery cell module bundling and squeezing device 22 includes: a bench 221, a transfer mechanism 222, and a shaping mechanism 223. There are a bundling position and a transfer position on the bench 221. The transfer mechanism 222 is used to switch between the bundling position and the transfer position. The shaping mechanism 223 is arranged at the transfer position. The shaping mechanism 223 is used to shape the battery cell module 224 on the transfer mechanism 222 along the width direction of the battery cell module 224. An extrusion assembly 2221 is provided on the transfer mechanism 222. The extrusion assembly 2221 is used to extrude the battery cell module 224 on the transfer mechanism 222 along the length direction of the battery cell module 224.

[0067] Specifically, for the battery cell module extrusion and bundling device shown in this embodiment, by respectively shaping and squeezing and sleeving the steel belt on the battery cell module 224 at two workstations, the overall efficiency of bundling the battery cell module is improved. When the battery cell module 224 needs to be bundled, the transfer mechanism 222 moves to the transfer position to make a receiving preparation. The loading manipulator transfers the battery cell module 224 to be bundled onto the transfer mechanism 222. The shaping mechanism 223 is turned on, so as to shape the side surface of the battery cell module 224, so that the side surface of the battery cell module 224 can be kept flat. After the shaping is completed, the transfer mechanism 222 drives the battery cell module 224 to move to the bundling position. The extrusion assembly 2221 extrudes the battery cell module 224 along the length direction of the battery cell module 224 to appropriately reduce the length dimension of the battery cell module 224, so as to facilitate the operator to sleeve the steel belt along the height direction of the battery cell module 224, thereby completing the bundling of the battery cell module 224. The transfer mechanism 222 drives the bundled battery cell module 224 to move to the transfer position, and the unloading manipulator performs unloading. That is, the entire bundling process is completed by two workstations. The battery cell module 224 is shaped at the transfer position, and the battery cell module 224 is squeezed and sleeved with a steel belt at the bundling position. On the one hand, by setting two workstations, the orderly bundling of the battery cell module can be realized, ensuring the production efficiency. On the other hand, sleeving the steel belt at the bundling position can avoid the occlusion caused by the shaping mechanism 223 and ensure the operation space.

[0068] In some embodiments, the cell module extrusion and bundling device shown in this embodiment further includes: a downward pressing mechanism 225; the downward pressing mechanism 225 is disposed at the bundling position, and the downward pressing mechanism 225 is used to press the cell module 224 on the transfer mechanism 222 in the height direction of the cell module 224. Specifically, after the transfer mechanism 222 moves the shaped cell module 224 to the bundling position, the downward pressing mechanism 225 is activated, so as to apply pressure to the cell module 224 in the height direction of the cell module 224, that is, to pressurize the upper surface of the cell module 224, effectively avoiding the deformation problem of the cell module 224 caused by the extrusion component 2221 when extruding the cell module 224. During the actual process of sleeving the steel strip, usually two steel strips need to be sleeved on the cell module 224. One steel strip is located in the upper half of the cell module 224, and the other steel strip is located in the lower half of the cell module 224. The operator sleeves one steel strip on the lower half of the cell module 224 from bottom to top, and then the downward pressing mechanism 225 retracts, so that the operator can sleeve the other steel strip on the upper half of the cell module 224 from top to bottom. As Figure 15 shown, the downward pressing mechanism 225 shown in this embodiment includes a mounting frame 2251, a first driving member 2252 and a downward pressing head 2253; the downward pressing head 2253 is connected to the mounting frame 2251 through the first driving member 2252, and the first driving member 2252 is used to drive the downward pressing head 2253 to move in the height direction of the cell module 224, and the first driving member 2252 drives the downward pressing head 2253 to move towards the cell module 224 until the downward pressing head 2253 contacts the cell module 224 and applies a certain pressure to the cell module 224.

[0069] As Figure 15 shown, the downward pressing mechanism 225 shown in this embodiment further includes a guiding structure 2254. The guiding structure 2254 includes a guiding rod and a guiding cylinder. The guiding rod and the guiding cylinder are both arranged in the height direction of the cell module 224. The guiding rod is movably arranged in the guiding cylinder. The guiding cylinder is connected to the mounting frame 2251, and the guiding rod is connected to the downward pressing head 2253. As Figure 16 shown, a steel strip prefabrication groove 2222 for accommodating the steel strip is provided on the transfer mechanism 222 shown in this embodiment. Before sleeving the steel strip, the steel strip in the steel strip prefabrication groove 2222 is located directly below the cell module 224. After the extrusion component 2221 extrudes the cell module 224, the operator lifts the steel strip, so as to sleeve the steel strip on the lower half of the cell module 224 from bottom to top. As Figure 17As shown, the shaping mechanism 223 shown in this embodiment includes a first shaping component 2231 and a second shaping component; the first shaping component 2231 and the second shaping component are arranged oppositely along the width direction of the battery cell module 224; the first shaping component 2231 and the second shaping component have the same structure, and both include a shaping plate 22311 and a second driving member 22312; the second driving member 22312 is used to drive the shaping plate 22311 to move towards or away from the side of the battery cell module 224.

[0070] In some embodiments, as Figure 17 shown, the first shaping component 2231 shown in this embodiment further includes a guide rail 22313; the guide rail 22313 extends along the width direction of the battery cell module 224, and the shaping plate 22311 is movably arranged on the guide rail 22313. Specifically, under the guiding action of the guide rail 22313, the stability of the movement of the shaping plate 22311 is ensured, and thus the shaping quality of the side surface of the battery cell module 224 is ensured. The first shaping component 2231 further includes a limiting structure 22314; the limiting structure 22314 is detachably connected to the shaping plate 22311. Specifically, through the limiting action of the limiting structure 22314, the over-extrusion of the battery cell module 224 caused by the shaping plate 22311 is avoided. A sliding table 2211 is provided on the bench 221 shown in this embodiment, and the transfer mechanism 222 is arranged on the sliding table 2211, and the transfer mechanism 222 is driven by the sliding table 2211 to switch between the bundling position and the transfer position. In some embodiments, as Figure 16As shown in the figure, the extrusion assembly 2221 shown in this embodiment includes a first extrusion head 22211, a second extrusion head 22212, and a third driving member 22213; the first extrusion head 22211 and the second extrusion head 22212 are oppositely arranged along the length direction of the battery cell module 224, and the third driving member 22213 is used to drive the first extrusion head 22211 and the second extrusion head 22212 to approach or separate from each other. Specifically, the third driving member 22213 drives the first extrusion head 22211 and the second extrusion head 22212 to approach each other so as to extrude the battery cell module 224 along the length direction of the battery cell module 224, so as to appropriately reduce the length dimension of the battery cell module 224, so that the operator can put the steel belt on the battery cell module 224. In some embodiments, a pressure sensor 226 is provided on the second extrusion head 22212 shown in this embodiment. The pressure sensor 226 is communicatively connected to the third driving member 22213 through a controller. The pressure sensor 226 feeds back the pressure received by the battery cell module 224 to the controller, and the controller correspondingly controls the third driving member 22213 to control the pressure within a suitable range; for example, the pre-pressure, holding pressure, and over-pressure can be set in advance according to the magnitude of the pressure. When the pressure reaches the pre-pressure, the third driving member 22213 can be controlled to continue to act, that is, continue to apply pressure. When the pressure reaches the holding pressure, the third driving member 22213 is controlled to stop. At this time, the steel belt is put on the battery cell module 224. In extreme working conditions, if the pressure reaches the over-pressure, the third driving member 22213 is correspondingly controlled to retract to prevent deformation and damage of the battery cell module 224.

[0071] Based on the above embodiments, in some embodiments, as Figures 18 to 21 shown, the battery cell module clamping device 24 includes: a first side pressing plate 241, a second side pressing plate, a first end plate 2421, a second end plate 2422, clamping jaws 243, and a driving assembly. The first side pressing plate 241 and the second side pressing plate are arranged at intervals along a first direction, and the first end plate 2421 and the second end plate 2422 are arranged at intervals along a second direction, where the second direction is perpendicular to the first direction; clamping jaws 243 are provided at the bottoms of both the first side pressing plate 241 and the second side pressing plate, and the clamping jaws 243 extend along the first direction toward the adjacent first side pressing plate 241 or second side pressing plate; the driving assembly is used to drive the first side pressing plate 241 and the second side pressing plate to approach or separate from each other along the first direction, and drive the first end plate 2421 and the second end plate 2422 to approach or separate from each other along the second direction; a clamping space is formed among the first side pressing plate 241, the second side pressing plate, the first end plate 2421, the second end plate 2422, and the clamping jaws 243, and the clamping space is used to clamp the battery cell module 2414.

[0072] The cell module clamping device provided by the present invention includes two side pressing plates (the first side pressing plate 241 and the second side pressing plate respectively), two end plates (the first end plate 2421 and the second end plate 2422 respectively), and clamping jaws 243. The first side pressing plate 241 and the second side pressing plate are arranged at intervals along the first direction, the first end plate 2421 and the second end plate 2422 are arranged at intervals along the second direction, and the first side pressing plate 241, the second side pressing plate, the first end plate 2421, and the second end plate 2422 enclose a rectangular structure, wherein the first direction and the second direction are in a plane and perpendicular to each other; further, clamping jaws 243 are provided at the bottom of the first side pressing plate 241, and the clamping jaws 243 extend along the first direction towards the second side pressing plate, and clamping jaws 243 are also provided at the bottom of the second side pressing plate, and the clamping jaws 243 extend along the first direction towards the first side pressing plate. The cell module clamping device further includes a driving assembly for driving the first side pressing plate 241, the second side pressing plate, the first end plate 2421, and the second end plate 2422 to move, so as to adjust the relative positions between the first side pressing plate 241 and the second side pressing plate and between the first end plate 2421 and the second end plate 2422. Specifically, the driving assembly is connected to the first side pressing plate 241 and / or the second side pressing plate, and the driving assembly is connected to the first end plate 2421 and / or the second end plate 2422. When the driving assembly is started, it drives the first side pressing plate 241 and the second side pressing plate to approach each other, reducing the distance between the two side pressing plates, and the distance between the two clamping jaws 243 also decreases accordingly; it drives the first end plate 2421 and the second end plate 2422 to approach each other, reducing the distance between the first end plate and the second end plate, and then clamping the cell module 2414 in the clamping space enclosed by the first side pressing plate 241, the second side pressing plate, the first end plate 2421, the second end plate 2422, and the clamping jaws 243. The inner wall surfaces of the first side pressing plate, the second side pressing plate, the first end plate, and the second end plate are respectively in contact with the side wall surfaces of the cell module 2414, and the clamping jaws 243 are located at the bottom surface of the cell module 2414 to support the cell module 2414 and prevent the cell module 2414 from detaching.

[0073] When the cell module 2414 moves to the target position, the driving assembly drives the first side pressing plate 241 and the second side pressing plate to move away from each other, increasing the distance between the first side pressing plate 241 and the second side pressing plate, and the distance between the two clamping jaws 243 also increases accordingly; it drives the first end plate 2421 and the second end plate 2422 to move away from each other, increasing the distance between the first end plate 2421 and the second end plate 2422, so as to unload the cell module 2414.

[0074] In this embodiment, the lengths of the first end plate 2421 and the second end plate 2422 are both less than or equal to the width of the battery cell module 2414, so as to avoid interference between the first end plate 2421 and the second end plate 2422 when they approach each other and the first side pressing plate 241 and the second side pressing plate, and ensure that the first end plate 2421 and the second end plate 2422 clamp the battery cell module 2414.

[0075] In this embodiment, the sum of the lengths of the clamping jaws 243 at the bottoms of the first side pressing plate and the second side pressing plate is less than or equal to the width of the battery cell module 2414, ensuring that the two side clamping jaws 243 can support the battery cell module 2414, so that the first side pressing plate 241 and the second side pressing plate can clamp the battery cell module 2414.

[0076] On the basis of the above embodiment, the battery cell module clamping device further includes a mounting plate 244, and the first side pressing plate 241, the second side pressing plate, the first end plate 2421 and the second end plate 2422 are all vertically arranged on the bottom surface of the mounting plate 244.

[0077] The battery cell module clamping device includes a first side pressing plate 241, a second side pressing plate, a first end plate 2421, a second end plate 2422 and a mounting plate 244. The first side pressing plate 241 and the second side pressing plate are arranged at intervals along a first direction of the mounting plate 244 on the bottom surface of the mounting plate 244, and the first side pressing plate 241 and the second side pressing plate are respectively perpendicular to the mounting plate 244; the first end plate 2421 and the second end plate 2422 are arranged at intervals along a second direction of the mounting plate 244 on the bottom surface of the mounting plate 244, and the first end plate 2421 and the second end plate 2422 are respectively perpendicular to the mounting plate 244.

[0078] When the control driving component is started, the first side pressing plate 241 and the second side pressing plate approach each other, and the first end plate 2421 and the second end plate 2422 approach each other, and then the battery cell module 2414 is clamped in the clamping space surrounded by the first side pressing plate 241, the second side pressing plate, the first end plate 2421, the second end plate 2422, the clamping jaws 243 at the bottom of the first side pressing plate, the clamping jaws 243 at the bottom of the second side pressing plate and the mounting plate 244. Among them, the inner wall surfaces of the first side pressing plate 241, the inner wall surfaces of the second side pressing plate, the inner wall surfaces of the first end plate 2421 and the inner wall surfaces of the second end plate 2422 are respectively attached to the side wall surfaces of the battery cell module 2414, the clamping jaws 243 are located at the bottom surface of the battery cell module 2414 for supporting the battery cell module 2414, and the top surface of the battery cell module 2414 can be attached to the bottom surface of the mounting plate 244 or can be kept at a certain distance from the bottom surface of the mounting plate 244.

[0079] In this embodiment, the mounting plate 244 can also be two, wherein the first side pressing plate 241 and the second side pressing plate are respectively vertically arranged on the bottom surface of the first mounting plate 244, and the first end plate 2421 and the second end plate 2422 are vertically arranged on the bottom surface of the second mounting plate 244.

[0080] Based on the above embodiments, further, the cell module clamping device further includes a limiting component, the limiting component includes a first fixing member 245 and a limiting member 247, the first fixing member 245 is connected to the bottom surface of the mounting plate 244, and the first fixing member 245 is located on the side of the first side pressing plate 241 away from the second side pressing plate, and / or the first fixing member 245 is located on the side of the second side pressing plate away from the first side pressing plate 241; when the first side pressing plate 241 and the second side pressing plate approach each other, the limiting member 247 is embedded between the first side pressing plate and the first fixing member 245, and / or the limiting member 247 is embedded between the second side pressing plate and the first fixing member 245. Further, the cell module clamping device further includes a second fixing member 246 and a driving member 248. When the first fixing member 245 is located on the side of the first side pressing plate away from the second side pressing plate, the second fixing member 246 is provided on the side of the first side pressing plate 241 away from the second side pressing plate; when the first fixing member 245 is located on the side of the second side pressing plate away from the first side pressing plate 241, the second fixing member 246 is provided on the side of the second side pressing plate away from the first side pressing plate 241. The driving member 248 is connected to the limiting member 247 to dispose the limiting member 247 between the first fixing member 245 and the second fixing member 246. The first side pressing plate is fixedly connected to the mounting plate 244, and the second side pressing plate is slidably connected to the mounting plate 244, that is, the driving assembly can drive the second side pressing plate to move in the first direction toward or away from the first side pressing plate. The limiting component includes a first fixing member 245 and a limiting member 247. The first fixing member 245 is vertically connected to the mounting plate 244, extends in the direction toward the second side pressing plate, and is located on the side of the second side pressing plate away from the first side pressing plate 241. When the driving assembly drives the second side pressing plate to move in the first direction toward the first side pressing plate, the distance between the second side pressing plate and the first fixing member 5 increases, and the limiting member 247 is embedded between the first fixing member 245 and the second side pressing plate to increase the clamping force, so as to stably clamp the cell module 2414 between the first side pressing plate 241 and the second side pressing plate.

[0081] Further, the limiting component further includes a second fixing member and a driving member 248. The second fixing member is provided on the side of the second side pressing plate away from the first side pressing plate 241, and the second fixing member is disposed opposite to the first fixing block. When the driving assembly drives the second side pressing plate to approach the first side pressing plate in the first direction, the distance between the first fixing block and the second fixing member increases, and the driving member 248 drives the limiting member 247 to move, so that the limiting member 247 is embedded between the first fixing block and the second fixing member.

[0082] In another embodiment, the limiting assembly includes two first fixing members 245 and two limiting members 247. The two first fixing members 245 are respectively vertically connected to the bottom surface of the mounting plate 244 and extend towards the side pressing plate. The two first fixing members 245 are respectively located on one side of the first side pressing plate 241 away from the second side pressing plate and on one side of the second side pressing plate away from the first side pressing plate 241. When the driving assembly drives the first side pressing plate 241 and the second side pressing plate to move relatively, the distance between the first side pressing plate 241 and the second side pressing plate and the corresponding first fixing member 245 increases. The limiting member 247 is embedded between the first side pressing plate and the first fixing member 245, and between the second side pressing plate and the first fixing member 245 to increase the clamping force. Further, the limiting assembly further includes two second fixing members and two driving members 248. The two second fixing members are respectively located on one side of the first side pressing plate 241 away from the second side pressing plate and on one side of the second side pressing plate away from the first side pressing plate 241, and the second fixing member is disposed opposite to the first fixing block on the same side. When the driving assembly drives the first side pressing plate 241 and the second side pressing plate to approach each other, the distance between the first fixing block and the second fixing member on the same side increases, and the driving member 248 drives the corresponding limiting member 247 to move so that the limiting member 247 is correspondingly embedded between the first fixing member 245 and the second fixing member 246. On the basis of the above embodiment, further, the bottom surface of the mounting plate 244 is provided with a first slide rail and a second slide rail. The first slide rail extends along a first direction, and the second slide rail extends along a second direction. The first side pressing plate 241 or the second side pressing plate is slidably connected to the first slide rail, and the first end plate 2421 or the second end plate 2422 is slidably connected to the second slide rail. By providing the first slide rail along the first direction and the second slide rail along the second direction on the bottom surface of the mounting plate 244, the present invention helps the first side pressing plate 241 and the second side pressing plate to approach or move away from each other along the first slide rail, and the first end plate 2421 and the second end plate 2422 to approach or move away from each other along the second slide rail, reducing friction, increasing the moving speed, accelerating the speed of clamping or unloading the battery cell module 2414, and thus improving the production efficiency. The driving assembly provided by the present invention includes a first air cylinder 249 and a second air cylinder 2410. The driving end of the first air cylinder 249 is connected to the first side pressing plate or the second side pressing plate, and the driving end of the second air cylinder 2410 is connected to the first end plate 2421 and / or the second end plate 2422. In one embodiment, the first side pressing plate is fixedly connected to the mounting plate 244, the second side pressing plate is slidably connected to the mounting plate 244, the driving end of the first air cylinder 249 is connected to the second side pressing plate. Starting the first air cylinder 249, the first air cylinder 249 can drive the second side pressing plate to move along the first direction towards or away from the first side pressing plate to clamp or unload the battery cell module 2414. The first end plate is fixedly connected to the mounting plate 244, the second end plate is slidably connected to the mounting plate 244, the driving end of the second air cylinder 2410 is connected to the second end plate. Starting the second air cylinder 2410, the second air cylinder 2410 drives the second end plate to move along the second direction towards or away from the first end plate to clamp or unload the battery cell module 2414.Based on the above embodiments, further, the cell module clamping device further includes a backing plate 2411. The backing plate 2411 is provided on one side of the first side pressing plate 241 and the second side pressing plate that are opposite to each other, and the backing plate 2411 is also provided on one side of the first end plate 2421 and the second end plate 2422 that are opposite to each other. The backing plate 2411 is also respectively provided on one side of the first end plate 2421 and the second end plate 2422 that are opposite to each other. When the first end plate 2421 and the second end plate 2422 are driven to approach each other to clamp the cell module 2414 between the first end plate 2421 and the second end plate 2422, the backing plate 2411 is located between the cell module 2414 and the first end plate 2421 or the second end plate 2422 to protect the cell module 2414 and prevent the cell module 2414 from being damaged due to excessive clamping force. In this embodiment, there is no specific limitation on whether the backing plate 2411 on one side of the first side pressing plate and the second side pressing plate that are opposite to each other is the same as the backing plate 2411 on one side of the first end plate 2421 and the second end plate 2422 that are opposite to each other. They can be the same or different; and there is no specific limitation on the size of the backing plate 2411, as long as the backing plate 2411 is provided between the side pressing plate and the cell module 2414, and the backing plate 2411 is provided between the end plate and the cell module 2414. Based on the above embodiments, a plurality of clamping claws 243 are provided at the bottom of the first side pressing plate 241 and the bottom of the second side pressing plate. The plurality of clamping claws 243 are arranged at intervals along the second direction. The cell module clamping device provided in this embodiment further includes a connecting member 2412 and a manipulator 2413. The connecting member 2412 is provided on the top surface of the mounting plate 244, and the manipulator 2413 is connected to the connecting member 2412. The connecting member 2412 is arranged on the top surface of the mounting plate 244, and the manipulator 2413 is connected to the connecting member 2412. The user can control the connecting member 2412 through the manipulator 2413 to drive the cell module 2414 clamped between the first side pressing plate 241, the second side pressing plate, the first end plate 2421, the second end plate 2422, and the two side clamping claws 243 to move and adjust the working position of the cell module 2414.

Claims

1. A square battery cell production line, characterized in that: include: The cell segment processing system, module segment processing system and pack segment processing system are arranged in sequence along the processing direction; The cell segment processing system comprises a cell transport device, a cell gluing device and a partition feeding device which are sequentially arranged along the processing direction, wherein the cell transport device is used to put the cell online, the cell gluing device is used to glue the cell, and the partition feeding device is used to put the air duct partition online so that the air duct partition is glued to the cell; The module segment processing system includes a cell module stacking device, a cell module bundling and extruding device, a busbar welding device and a cell module clamping device which are sequentially arranged along the processing direction, the cell module stacking device is used to stack the cells after the installation of the air duct partition to form a cell module, the cell module bundling and extruding device is used to shape the cell module, the busbar welding device is used to perform busbar welding on the cell module after the shaping is completed, and the cell module clamping device is used to transport the cell module; The Pack segment processing system is used to pack the processed battery cell modules; The battery cell module bundling and extrusion device comprises: a stand, a shaping mechanism, a transfer mechanism, and a pressing mechanism; the stand is provided with a bundling position and a transfer position; the transfer mechanism is used to switch between the bundling position and the transfer position; the shaping mechanism is arranged at the transfer position, and the shaping mechanism is used to shape the battery cell module on the transfer mechanism along the width direction of the battery cell module; the transfer mechanism is provided with an extrusion component, and the extrusion component is used to extrude the battery cell module on the transfer mechanism along the length direction of the battery cell module; the pressing mechanism is arranged at the bundling position, and the pressing mechanism is used to press down the battery cell module on the transfer mechanism along the height direction of the battery cell module; The battery cell module stacking device comprises: A mounting plate having a bearing surface, wherein the mounting plate has a stacking end and a feeding end which are arranged opposite to each other along a first direction of the bearing surface; A positioning assembly, including a positioning plate, disposed at the stacking end, wherein the side wall surface of the positioning plate facing the loading end forms a stacking surface, and the stacking surface and the carrying surface are used to jointly carry the battery cell; and A battery cell fixture, movably disposed on the carrying surface along the first direction, and having a movable stroke of reciprocating movement between the feeding end and the stacking end; The battery cell clamp is used to receive the battery cells at the loading end and clamp the battery cells to move toward the stacking end, so as to stack the battery cells on the stacking surface along the first direction.

2. The square battery cell production line according to claim 1, characterized in that: The Pack section processing system is provided with a box body on-line station, a cell module box-entering station, an accessory installation station and a testing station which are arranged in sequence along the processing direction; The box on-line station is used to transfer the box to the production line, the battery cell module box entry station is used to import the battery cell module into the box, the accessory installation station is used to install the accessories of the battery cell module, and the test station is used to test the installed battery cell module.

3. The square battery cell production line according to claim 2, characterized in that: The accessory installation station includes a front panel installation station, a copper busbar installation station and a cover plate installation station; The front panel installation station is used to install the front panel on the battery module after it is put into the box; The copper busbar installation station is used to install the copper busbar on the battery cell module after it is put into the box; The cover plate installation station is used to install a cover plate on the battery cell module after it is placed in the box.

4. The square battery cell production line according to claim 1, characterized in that: The square battery cell production line also includes: a plurality of NG offline devices, each of which is connected to at least one of the battery cell gluing device, the partition loading device, the battery cell module stacking device, the battery cell module bundling and extrusion device, the busbar welding device and the Pack section processing system, and is used to transport the battery cells or the battery cell modules with processing problems.

5. The square battery cell production line according to claim 1, characterized in that: The battery cell transfer device comprises: a mechanical arm, a battery cell variable distance grabbing mechanism and a disc-off mechanism; The battery cell variable-distance grasping mechanism includes a base, a variable-distance component and a clamping component. The base is installed on the robotic arm, the variable-distance component is installed on the base and changes distance along the extension direction of the base, the clamping component is installed on the variable-distance component and is used to clamp the battery cell on the tray, and the tray-detaching mechanism is connected to the base and is used to squeeze the tray to separate the battery cell from the tray when the clamping component clamps the battery cell.

6. The square battery cell production line according to claim 1, characterized in that: The battery core gluing device comprises: a driving motor, a material unwinding roll, a material receiving roll and a roller assembly; The unwinding reel is used to supply a material strip including release paper and a segmented adhesive film, one end of the material strip is wound around the unwinding reel, and the other end of the material strip is wound around the receiving reel through the roller assembly, and the driving motor is transmission-connected to the receiving reel and the roller assembly.

7. The square battery cell production line according to claim 1, characterized in that: The partition loading device comprises: a partition loading unit, a conveyor line, and a partition loading unit, a partition cleaning unit, and a partition installation unit which are sequentially arranged along the transport direction of the conveyor line; The partition loading unit is arranged on one side of the loading end of the conveyor line; the partition online unit is arranged at the loading end of the conveyor line, and is used to transfer the air duct partition on the partition loading unit to the conveyor line; the conveyor line is used to convey the air duct partition; the partition cleaning unit includes two partition cleaning mechanisms and a partition flipping mechanism; the partition flipping mechanism is arranged between the two partition cleaning mechanisms; the partition installation unit is arranged at the unloading end of the conveyor line, and is used to install the air duct partition on the battery cell.

8. The square battery cell production line according to any one of claims 1 to 7, characterized in that: The battery cell module clamping device comprises: a first side pressing plate, a second side pressing plate, a first end plate, a second end plate, a clamping claw and a driving assembly, wherein the first side pressing plate and the second side pressing plate are arranged at intervals along a first direction, and the first end plate and the second end plate are arranged at intervals along a second direction, wherein the second direction is perpendicular to the first direction; the bottom of the first side pressing plate and the bottom of the second side pressing plate are both provided with the clamping claw, and the clamping claw extends along the first direction toward the adjacent first side pressing plate or the second side pressing plate; The driving assembly is used to drive the first side pressure plate and the second side pressure plate to move closer to or farther away from each other along the first direction, and to drive the first end plate and the second end plate to move closer to or farther away from each other along the second direction; A clamping space is formed between the first side pressure plate, the second side pressure plate, the first end plate, the second end plate and the clamping claws, and the clamping space is used to clamp the battery cell module.

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