Energy storage battery cell assembly process and device thereof

Abstract

The device comprises a base, a portal frame A, a portal frame B and an air suction mechanism arranged above the portal frame A. The device further comprises a driving mechanism arranged above the portal frame B and used for driving an energy storage battery cell to adjust the position and further comprises a discharging mechanism arranged on one side of the driving mechanism. The discharging mechanism is used for discharging battery cells with different shapes and specifications, and the conveying mechanism is arranged above the base and used for conveying an energy storage battery assembly to advance; the negative pressure pump is used for exhausting air from the protective cover through the exhaust pipe, welding smoke generated in the energy storage battery cell laser welding process is sucked into the connecting pipe, the smoke generated in the laser welding process is treated in time under the treatment effect of the laser welding dust remover, and the situation that the smoke generated in the laser welding process pollutes the environment is avoided; particulate matters in smoke dust are prevented from falling on the surface of the battery cell, and good contact of the polar end of the energy storage battery cell is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage battery cell assembly, and particularly to an energy storage battery cell assembly process and its device. Background Art

[0002] As a key part of the energy storage system, energy storage battery cells come in a wide variety, and each type has its unique application scenarios and performance characteristics. The following is a detailed introduction to energy storage battery cells: Classification of battery cells: Nickel-based batteries: Such as nickel-metal hydride batteries, which are known for their high energy density, rapid charge and discharge, light weight, long life, and environmental friendliness. However, they have problems such as slight memory effect and management difficulty.

[0003] Flow batteries: Suitable for fixed large-scale energy storage applications, with power and energy storage capacity that can be independently designed, high efficiency, long life, deep discharge ability, and environmental friendliness, and flexible layout. However, their energy density is relatively low.

[0004] Sodium-sulfur batteries: Secondary batteries with metallic sodium as the negative electrode and sulfur as the positive electrode, which have advantages such as high specific energy and no self-discharge phenomenon. However, attention should be paid to their safety in practical applications.

[0005] Development trend of energy storage battery cells: With the continuous progress of technology and the continuous development of the market, the capacity and performance of energy storage battery cells are constantly improving. For example, the 280Ah large single energy storage battery cell launched by CATL has become an object for many battery cell enterprises to imitate, opening the era of 280Ah energy storage battery cells. Subsequently, large-capacity battery cells such as 314Ah have gradually become the industry's first choice.

[0006] After multiple groups of battery cells for energy storage are arranged in an alternating positive and negative electrode manner, the positive electrode cover plate is connected to the positive electrode of the battery cell by laser ring welding, and the negative electrode cover plate also needs to be connected to the negative electrode of the battery cell by laser ring welding. After welding, the welded battery cell group is placed in the shell for wiring, thus completing the assembly.

[0007] In the prior art, a Chinese invention patent with the authorization announcement number CN114464868B specifically relates to an automatic assembly station for new energy lithium battery cells; the battery cells are placed on the first conveyor belt and the second conveyor belt. When the battery cells are conveyed to the first robotic arm and the second robotic arm, after the positive and negative poles of the battery cells are identified by the camera assembly, the electric gripper is activated to clamp the battery cells, and then, according to the image information identified by the camera assembly, it is judged whether it is necessary to activate the second rotating assembly to adjust the positive and negative pole directions of the battery cells. After that, the first rotating assembly is activated to rotate the lifting arm to the upper part of the assembly frame, and then the battery cells are placed in the corresponding placement slots. Through the mutual cooperation of the camera assembly, the first rotating assembly and the second rotating assembly, multiple battery cells are arranged in the assembly frame in a staggered manner of positive and negative poles, which has a higher working efficiency compared with the traditional manual arrangement method.

[0008] Problems existing in comparison with the prior art: Energy storage battery cells are generally connected by laser welding during the assembly process. Some existing energy storage battery cell assembly devices cannot timely handle the fumes generated during the laser welding process during the assembly of energy storage battery cells. The particulate matter in the fumes easily falls on the surface of the battery cells, resulting in poor contact at the polar ends of the energy storage battery cells.

[0009] Therefore, there is an urgent need for an energy storage battery cell assembly process and its device. Summary of the Invention

[0010] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an energy storage battery cell assembly process and its device.

[0011] The present invention solves its technical problems through the following technical solutions: An energy storage battery cell assembly device includes a base, a gantry A welded to one end of the base, a gantry B welded to one side of the gantry A, and an air suction mechanism arranged above the gantry A for timely handling the fumes generated during the laser welding process. The air suction mechanism includes a workbench, a protective cover, and a negative pressure pump. The workbench is slidably connected above the gantry A. A protective cover is arranged below the workbench, and a negative pressure pump is arranged on one side of the protective cover. It also includes a driving mechanism arranged above the gantry B for driving the energy storage battery cells to adjust their positions. The driving mechanism includes a lead screw, the lead screw is rotatably connected to one side of the gantry B, and a driving block is arranged on the outer side of the lead screw. It further includes a blanking mechanism arranged on one side of the driving mechanism for blanking battery cells of different shapes and specifications. The blanking mechanism includes a blanking box, a rotating plate, an annular air duct, and a telescopic airbag. The blanking box is welded to one side of the driving block, a rotating plate is arranged on the top of the blanking box, an annular air duct is arranged on the outer side of the blanking box, and a plurality of telescopic airbags are evenly installed inside the annular air duct. It also includes a conveying mechanism arranged above the base for conveying the energy storage battery assembly forward.

[0012] As a further solution of the present invention: The air suction mechanism further includes a laser welder, which is fixed to one end of the workbench by bolts. There is an air extraction pipe above the negative pressure pump. One end of the gantry A is provided with a driving electric push rod. One side of the gantry B is provided with a connecting pipe, and an electric valve A is provided on one side of the connecting pipe.

[0013] As a further solution of the present invention: The driving mechanism further includes a servo motor A, which is fixed to one end of the lead screw by bolts. There is a storage box above the driving block. Lateral electric push rods are provided at both ends of the storage box, and a push plate is provided at the extended end of the lateral electric push rod.

[0014] As a further solution of the present invention: The blanking mechanism further includes a rotating shaft, which is welded below the blanking box. The rotating shaft is rotatably connected to the rotating plate, and a vertical plate is provided below the rotating plate.

[0015] As a further solution of the present invention: The conveying mechanism includes a conveyor belt. A plurality of brackets are provided above the base. One end of the bracket is provided with a servo motor B, and a roller is provided at the rotating end of the servo motor B. The conveyor belt is rotatably connected to the outside of the roller. A toothed belt wheel is provided at one end of the roller, and a toothed belt is provided on the outside of the toothed belt wheel. A plurality of assembly frames are evenly placed above the conveyor belt.

[0016] As a further solution of the present invention: A clamping mechanism is further provided on one side of the conveying mechanism to prevent the assembly frame from sliding above the conveyor belt. The clamping mechanism includes a double-shaft electric push rod, which is fixed to the inside of the conveyor belt by bolts. Side arms are provided at both ends of the double-shaft electric push rod, a clamping plate is provided on the inner wall of the side arm, and a rubber pad is pasted on the outer wall of the clamping plate.

[0017] As a further solution of the present invention: Chutes are provided at both ends of the workbench, and the gantry A is slidably connected to the chutes. An air outlet pipe is provided below the connecting pipe, and an electric valve B is provided at one end of the air outlet pipe.

[0018] As a further solution of the present invention: A laser welding dust collector is provided at the middle position of the connecting pipe, and telescopic pipes are provided at both ends of the connecting pipe.

[0019] As a further solution of the present invention: A pressure relief valve is provided on one side of the annular air duct.

[0020] An energy storage battery cell assembly process includes: S1: First, place the corresponding assembly frame above the conveyor belt according to the shape and size of the battery cell. The double-axis electric push rod drives the side arms on both sides to approach synchronously, and the clamping plates approach each other to clamp the assembly frame. Place battery cells with opposite polarities at both ends of the storage box. S2: The servo motor B drives the roller to rotate self - sufficiently. The toothed belt wheel and the toothed belt cooperate to drive, driving multiple rollers to rotate synchronously and driving the assembly frame forward. S3: The negative pressure pump evacuates the protective cover through the air extraction pipe, sucking the welding fumes generated during the laser welding process of the energy storage battery cell into the connecting pipe. Under the treatment of the laser welding dust collector, the fumes generated during the laser welding process are processed. The gas drives the expansion of the telescopic airbag, squeezing the rotating plate, and adjusting the inclination angle of the rotating plate according to the size specifications of the battery cell. After the adjustment is completed, the electric valve B controls the opening of the air outlet pipe, and at the same time, the electric valve A controls the annular air passage to stop admitting air. S4: When the assembly frame moves forward to directly below the blanking box, the lateral electric push rod pushes the push plate to move, pushing the battery cell to be discharged. S5: The driving electric push rod drives the workbench to reciprocate along the gantry, and under the transmission of the transmission mechanism, the energy storage battery cells at different positions are welded. S6: Repeat steps S1 - S5 until the assembly operation of all energy storage battery cells is completed.

[0021] In summary, due to the adoption of the above - mentioned technical solutions, the beneficial effects of the present invention are as follows: 1. The negative pressure pump evacuates the protective cover through the air extraction pipe, sucking the welding fumes generated during the laser welding process of the energy storage battery cell into the connecting pipe. Under the treatment of the laser welding dust collector, the fumes generated during the laser welding process are timely processed, avoiding the pollution of the environment caused by the welding fumes during the laser welding process, preventing the particulate matter in the fumes from falling on the surface of the battery cell, and ensuring good contact at the polar ends of the energy storage battery cell. 2. By controlling the opening of the telescopic pipe on one side of the annular air passage by the electric valve A, the purified gas is introduced into the annular air passage under the connection action of the telescopic pipe, driving the expansion of the telescopic airbag to squeeze the rotating plate, adjusting the inclination angle of the rotating plate. Multiple rotating plates cooperate, and the vertical plate guides out the battery cell, enabling the energy storage battery cell assembly device to meet the blanking operations of battery cells of various specifications and sizes during the assembly process of the battery cell, enriching the functionality of the energy storage battery cell assembly device. 3. The servo motor B drives the roller to rotate self - sufficiently, the roller drives the toothed belt wheel to rotate, and drives multiple rollers to rotate synchronously through the toothed belt, ensuring the smooth rotation of the conveyor belt. The double - axis electric push rod drives the side arms on both sides to approach synchronously, and the clamping plates approach each other to clamp the assembly frame, preventing the assembly frame from sliding during the transmission process and ensuring the accuracy of the energy storage battery cell assembly. Description of the Drawings

[0022] Figure 1 Shows a schematic side view structure provided according to an embodiment of the present invention; Figure 2 Shows the one provided according to an embodiment of the present invention Figure 1 Local enlarged structure schematic diagram at A in; Figure 3 Shows a schematic side sectional view structure provided according to an embodiment of the present invention; Figure 4 Shows the one provided according to an embodiment of the present invention Figure 3 Local enlarged structure schematic diagram at B in; Figure 5 Shows a schematic front sectional view structure provided according to an embodiment of the present invention; Figure 6 Shows the one provided according to an embodiment of the present invention Figure 5 Local enlarged structure schematic diagram at C in; Figure 7 Shows the one provided according to an embodiment of the present invention Figure 5 Local enlarged structure schematic diagram at D in.

[0023] Legend description: 100, base; 200, gantry A; 300, gantry B; 101, workbench; 102, laser welding machine; 103, protective cover; 104, exhaust pipe; 105, negative pressure pump; 106, driving electric push rod; 107, connecting pipe; 108, electric valve A; 110, chute; 120, air outlet pipe; 130, electric valve B; 140, laser welding dust collector; 150, telescopic pipe; 201, servo motor A; 202, lead screw; 203, driving block; 210, pressure relief valve; 301, blanking box; 302, rotating shaft; 303, rotating plate; 304, vertical plate; 305, annular air duct; 306, telescopic airbag; 310, storage box; 320, lateral electric push rod; 330, push plate; 401, bracket; 402, servo motor B; 403, roller; 404, conveyor belt; 405, toothed belt pulley; 406, toothed belt; 407, assembly frame; 501, double - axis electric push rod; 502, side arm; 503, clamping plate; 504, rubber pad. Detailed implementation manners

[0024] In the following text, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the accompanying drawings and description are considered to be exemplary in nature and not restrictive.

[0025] In the present invention, unless otherwise clearly specified and defined, the first feature being “on” or “under” the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being “under”, “below” and “beneath” the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Embodiment 1: As Figures 1-7As shown, an energy storage battery cell assembly device includes a base 100, a gantry A200 welded to one end of the base 100, a gantry B300 welded to one side of the gantry A200, and an air suction mechanism arranged above the gantry A200, which is used to promptly handle the smoke generated during the laser welding process. The air suction mechanism includes a workbench 101, a protective cover 103, and a negative pressure pump 105. The workbench 101 is slidably connected to the top of the gantry A200, and the protective cover 103 is fixed to the bottom of the workbench 101 by bolts. The protective cover 103 is cylindrical and has a certain elasticity, and is used to shield the welding part of the energy storage battery cell. A negative pressure pump 105 is fixed to one side of the protective cover 103 by bolts. The air suction mechanism It also includes a laser welder 102, which is fixed to one end of the workbench 101 by bolts, and the protective cover 103 is installed on the outside of the welding head of the laser welder 102. An exhaust pipe 104 is fixed above the negative pressure pump 105 by bolts, and one end of the exhaust pipe 104 is connected to the protective cover 103. A filter is installed on the side of the protective cover 103 close to the exhaust pipe 104. A driving electric push rod 106 is fixed to one end of the gantry A200 by bolts, and the extended end of the driving electric push rod 106 is fixedly connected to the workbench 101 for driving the workbench 101 to move horizontally. A connecting pipe 107 is fixed to one side of the gantry B300 by bolts, and both ends of the connecting pipe 107 are fixed to telescopic pipes 1 by bolts. 50, the telescopic tube 150 is used to adjust the connection length of the connecting tube 107, a laser welding dust collector 140 is fixed to the middle position of the connecting tube 107 by bolts, and the laser welding dust collector 140 is used to treat the laser welding smoke in the assembly process of the energy storage battery cell, an electric valve A108 is fixed to one side of the connecting tube 107 by bolts, and the electric valve A108 controls the closing or opening of the connecting tube 107, and a slide groove 110 is cut at both ends of the workbench 101, and the slide groove 110 is slidably connected to the gantry A200, so as to limit the movement trajectory of the workbench 101, and an air outlet pipe 120 is welded at the bottom of the connecting tube 107, and an electric valve B130 is fixed to one end of the air outlet pipe 120 by bolts. Under the control of the electric valve B130, the air outlet pipe 120 can discharge the gas inside the connecting pipe 107, and also includes a driving mechanism arranged above the gantry B300, which is used to drive the energy storage battery cell to adjust the position, and the driving mechanism includes a screw rod 202, and the screw rod 202 is rotatably connected to one side of the gantry B300, and the outer side of the screw rod 202 is transmission-connected with a driving block 203, and the screw rod 202 rotates to drive the driving block 203 to move, and the driving mechanism also includes a servo motor A201, and the servo motor A201 is fixed to one end of the screw rod 202 by bolts, and a storage box 310 is fixed above the driving block 203 by bolts, and the driving block 203 drives the storage box 310 to move laterally, so as to adjust the unloading position of the battery cell.At both ends of the storage box 310, battery cells with opposite polarities are placed. At both ends of the storage box 310, lateral electric push rods 320 are fixed by bolts. The extending end of the lateral electric push rod 320 is fixed with a push plate 330 by bolts. The lateral electric push rod 320 pushes the push plate 330 to move, pushing the battery cells to feed. There is also a feeding mechanism arranged on one side of the driving mechanism for feeding battery cells of different shapes and specifications. The feeding mechanism includes a feeding box 301, a rotating plate 303, an annular air duct 305, and a telescopic airbag 306. The feeding box 301 is welded to one side of the driving block 203. The top of the feeding box 301 is rotatably connected to the rotating plate 303. The telescopic airbag 306 is compressed and expanded to squeeze the rotating plate 303. The feeding mechanism also includes a rotating shaft 302. The rotating shaft 302 is welded below the feeding box 301. The rotating shaft 302 is rotatably connected to the rotating plate 303. Under the squeezing action of the telescopic airbag 306, the inclination angle of the rotating plate 303 is adjusted. A vertical plate 304 is rotatably connected below the rotating plate 303. The vertical plate 304 guides the battery cells out. An annular air duct 305 is fixed to the outside of the feeding box 301 by bolts. The connecting pipe 107 connects the air extraction pipe 104 and the annular air duct 305. A plurality of telescopic airbags 306 are evenly installed inside the annular air duct 305. A pressure relief valve 210 is fixed to one side of the annular air duct 305 by bolts. The pressure relief valve 210 relieves the pressure of the annular air duct 305, resetting the rotating plate 303. There is also a conveying mechanism arranged above the base 100 for conveying the energy storage battery assembly forward.,

[0028] In this embodiment, the negative pressure pump 105 extracts air from the protective cover 103 through the air extraction pipe 104, sucking the welding fumes generated during the laser welding process of the energy storage battery cells into the connecting pipe 107. Under the treatment of the laser welding dust collector 140, the fumes generated during the laser welding process are timely treated, avoiding the pollution of the environment caused by the fumes generated during the laser welding process, preventing the particles in the fumes from falling onto the surface of the battery cells, ensuring good contact at the polar ends of the energy storage battery cells. By controlling the opening of the telescopic pipe 150 on one side of the annular air duct 305 through the electric valve A108, the purified gas is introduced into the annular air duct 305 under the connection action of the telescopic pipe 150, driving the telescopic airbag 306 to be compressed and expanded to squeeze the rotating plate 303, adjusting the inclination angle of the rotating plate 303. With the cooperation of a plurality of rotating plates 303, the vertical plate 304 guides the battery cells out, enabling the energy storage battery cell assembly device to meet the feeding operations of battery cells of various specifications and sizes during the cell assembly process, enriching the functionality of the energy storage battery cell assembly device.

[0029] When this embodiment is used, the negative pressure pump 105 is first started, and the negative pressure pump 105 evacuates the protective cover 103 through the exhaust pipe 104, and the welding smoke generated during the laser welding process of the energy storage battery cell is sucked into the connecting pipe 107. The smoke generated during the laser welding process is processed by the laser welding dust collector 140, and the electric valve A108 is controlled to open the telescopic tube 150 on one side of the annular airway 305. The gas drives the telescopic airbag 306 to expand under pressure to squeeze the rotating plate 303, and the size specifications of the battery cell are adjusted. The inclination angle of the rotating plate 303 is adjusted. After the adjustment is completed, the electric valve B130 controls the air outlet pipe 120 to open, and the electric valve A108 controls the annular airway 305 to stop air intake. The battery cells with opposite polarities are placed at both ends of the storage box 310. The lateral electric push rod 320 pushes the push plate 330 to move, and pushes the battery cells to be unloaded. Then, the electric push rod 106 is driven to drive the workbench 101 to move along the gantry A200, and the energy storage battery cells at different positions are welded under the transmission action of the transmission mechanism.

[0030] Example 2: Figures 1-5 As shown, a storage battery cell assembly device, the transmission mechanism includes a conveyor belt 404, a plurality of brackets 401 are welded above the base 100, one end of the bracket 401 is fixed with a servo motor B402 by bolts, the rotating end of the servo motor B402 is fixed with a roller 403 by bolts, the servo motor B402 drives the roller 403 to rotate, the conveyor belt 404 is rotatably connected to the outer side of the roller 403, one end of the roller 403 is fixed with a toothed belt wheel 405 by bolts, the roller 403 drives the toothed belt wheel 405 to rotate, the outer side of the toothed belt wheel 405 is transmission-connected with a toothed belt 406, the toothed belt 406 drives and drives the plurality of rollers 403 to rotate synchronously, the upper side of the conveyor belt 404 A plurality of assembly frames 407 are evenly placed, and a clamping mechanism is also provided on one side of the conveying mechanism to prevent the assembly frame 407 from sliding above the conveyor belt 404, and the clamping mechanism includes a double-axis electric push rod 501, and the double-axis electric push rod 501 is fixed to the inside of the conveyor belt 404 by bolts, and side arms 502 are fixed to both ends of the double-axis electric push rod 501 by bolts, and the double-axis electric push rod 501 drives the side arms 502 on both sides to approach synchronously, and the inner wall of the side arm 502 is fixed with a clamping plate 503 by bolts, and the clamping plates 503 are approached to clamp the assembly frame 407, and the outer wall of the clamping plate 503 is pasted with a rubber pad 504, and the rubber pad 504 prevents the assembly frame 407 from being clamped and buffers the clamping force.

[0031] In this embodiment, the servo motor B402 drives the roller 403 to rotate self - sufficiently. The roller 403 drives the toothed pulley 405 to rotate, and drives multiple rollers 403 to rotate synchronously through the toothed belt 406, ensuring the smooth rotation of the conveyor belt 404. The double - axis electric push rod 501 drives the side arms 502 on both sides to approach synchronously, and the clamping plates 503 approach each other to clamp the assembly frame 407, preventing the assembly frame 407 from sliding during transportation and ensuring the accuracy of the energy - storage battery cell assembly.

[0032] When this embodiment is in use, first place the corresponding assembly frame 407 above the conveyor belt 404 according to the shape and size of the battery cell. The double - axis electric push rod 501 drives the side arms 502 on both sides to approach synchronously, and the clamping plates 503 approach each other to clamp the assembly frame 407. Subsequently, the servo motor B402 drives the roller 403 to rotate self - sufficiently, and the toothed pulley 405 and the toothed belt 406 cooperate to drive multiple rollers 403 to rotate synchronously, driving the assembly frame 407 to move forward.

[0033] An energy - storage battery cell assembly process includes: S1: First, place the corresponding assembly frame 407 above the conveyor belt 404 according to the shape and size of the battery cell. The double - axis electric push rod 501 drives the side arms 502 on both sides to approach synchronously, and the clamping plates 503 approach each other to clamp the assembly frame 407. Place the battery cells with opposite polarities at both ends of the storage box 310. S2: The servo motor B402 drives the roller 403 to rotate self - sufficiently, and the toothed pulley 405 and the toothed belt 406 cooperate to drive multiple rollers 403 to rotate synchronously, driving the assembly frame 407 to move forward. S3: The negative - pressure pump 105 evacuates the protective cover 103 through the suction pipe 104, sucking the welding fumes generated during the laser welding process of the energy - storage battery cell into the connecting pipe 107. Under the treatment of the laser - welding dust collector 140, the fumes generated during the laser - welding process are treated. The gas drives the expansion of the telescopic airbag 306, which compresses the rotating plate 303, adjusts the inclination angle of the rotating plate 303 according to the size specification of the battery cell. After the adjustment is completed, the electric valve B130 controls the opening of the air outlet pipe 120, and at the same time, the electric valve A108 controls the annular air duct 305 to stop admitting air. S4: When the assembly frame 407 moves forward to directly below the blanking box 301, the lateral electric push rod 320 pushes the push plate 330 to move, pushing the battery cell to be discharged. S5: The driving electric push rod 106 drives the workbench 101 to reciprocate along the gantry, and welds the energy - storage battery cells at different positions under the transmission of the conveying mechanism. S6: Repeat steps S1 - S5 until the assembly operation of all energy - storage battery cells is completed.

[0034] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. An energy storage battery cell assembly device, characterized in that: The invention comprises a base (100), a gantry A (200) welded to one end of the base (100), a gantry B (300) welded to one side of the gantry A (200), and an air suction mechanism arranged above the gantry A (200), and is used for timely processing of smoke and dust generated during the laser welding process. The air suction mechanism comprises a workbench (101), a protective cover (103), and a negative pressure pump (105); the workbench (101) is slidably connected to the top of a gantry A (200); a protective cover (103) is provided below the workbench (101); and a negative pressure pump (105) is provided on one side of the protective cover (103). It also includes a driving mechanism disposed above the gantry B (300) and used for driving the energy storage battery cells to adjust their positions, the driving mechanism comprising a screw rod (202), the screw rod (202) being rotatably connected to one side of the gantry B (300), a driving block (203) being disposed on the outer side of the screw rod (202), The device also comprises a material unloading mechanism arranged at one side of the driving mechanism, and used for unloading battery cells of different shapes and specifications. The material unloading mechanism comprises a material unloading box (301), a rotating plate (303), an annular air channel (305), and a telescopic air bag (306). The material unloading box (301) is welded to one side of the driving block (203). The top of the material unloading box (301) is provided with a rotating plate (303). The outer side of the material unloading box (301) is provided with an annular air channel (305). The inner side of the annular air channel (305) is evenly installed with a plurality of telescopic air bags (306). It also includes a conveying mechanism arranged above the base (100) and used for conveying the energy storage battery assembly forward.

2. The energy storage battery cell assembly device according to claim 1, characterized in that: The air suction mechanism further comprises a laser welder (102), the laser welder (102) being fixed to one end of the workbench (101) by means of bolts, an air suction pipe (104) being arranged above the negative pressure pump (105), a driving electric push rod (106) being arranged at one end of the gantry A (200), a connecting pipe (107) being arranged at one side of the gantry B (300), and an electric valve A (108) being arranged at one side of the connecting pipe (107).

3. The energy storage battery cell assembly device according to claim 2, characterized in that: The driving mechanism further comprises a servo motor A (201), the servo motor A (201) being fixed to one end of a lead screw (202) by means of a bolt, a material storage box (310) being arranged above the driving block (203), lateral electric push rods (320) being arranged at both ends of the material storage box (310), and a push plate (330) being arranged at an extended end of the lateral electric push rod (320).

4. The energy storage battery cell assembly device according to claim 3, characterized in that: The material discharge mechanism further comprises a rotating shaft (302), wherein the rotating shaft (302) is welded to the bottom of the material discharge box (301), the rotating shaft (302) is rotatably connected to a rotating plate (303), and a vertical plate (304) is provided below the rotating plate (303).

5. The energy storage battery cell assembly device according to claim 4, characterized in that: The conveying mechanism comprises a conveyor belt (404); a plurality of brackets (401) are arranged above the base (100); a servo motor B (402) is arranged at one end of the bracket (401); a roller (403) is arranged at the rotating end of the servo motor B (402); the conveyor belt (404) is rotatably connected to the outer side of the roller (403); a toothed belt wheel (405) is arranged at one end of the roller (403); a toothed belt (406) is arranged at the outer side of the toothed belt wheel (405); and a plurality of assembly frames (407) are evenly placed above the conveyor belt (404).

6. The energy storage battery cell assembly device according to claim 5, characterized in that: A clamping mechanism is also provided on one side of the conveying mechanism to prevent the assembly frame (407) from sliding above the conveyor belt (404), the clamping mechanism comprising a double-axis electric push rod (501), the double-axis electric push rod (501) being fixed to the inside of the conveyor belt (404) by bolts, side arms (502) being provided at both ends of the double-axis electric push rod (501), a splint (503) being provided on the inner wall of the side arm (502), and a rubber pad (504) being adhered to the outer wall of the splint (503).

7. The energy storage battery cell assembly device according to claim 6, characterized in that: Slide grooves (110) are provided at both ends of the workbench (101), the slide grooves (110) are slidably connected to the gantry A (200), an air outlet pipe (120) is provided below the connecting pipe (107), and an electric valve B (130) is provided at one end of the air outlet pipe (120).

8. The energy storage battery cell assembly device according to claim 7, characterized in that: A laser welding dust collector (140) is provided in the middle of the connecting pipe (107), and telescopic pipes (150) are provided at both ends of the connecting pipe (107).

9. The energy storage battery cell assembly device according to claim 8, characterized in that: A pressure relief valve (210) is provided on one side of the annular air passage (305).

10. An energy storage battery cell assembly process, applied to an energy storage battery cell assembly device as claimed in claim 9, characterized in that: include: S1: First, according to the shape and size of the battery cell, the corresponding assembly frame (407) is placed on the conveyor belt (404), the double-axis electric push rod (501) drives the side arms (502) on both sides to move closer synchronously, and the clamping plates (503) move closer to each other to clamp the assembly frame (407), and the battery cells with opposite polarities are placed at both ends of the storage box (310); S2: The servo motor B (402) drives the roller (403) to rotate, and the toothed belt wheel (405) cooperates with the toothed belt (406) to drive the plurality of rollers (403) to rotate synchronously, thereby driving the assembly frame (407) to move forward; S3: The negative pressure pump (105) evacuates the protective cover (103) through the exhaust pipe (104), and the welding smoke generated during the laser welding process of the energy storage battery cells is sucked into the connecting pipe (107). The smoke generated during the laser welding process is processed by the laser welding dust collector (140). The gas drives the telescopic airbag (306) to expand under pressure to squeeze the rotating plate (303). The tilt angle of the rotating plate (303) is adjusted according to the size specifications of the battery cells. After the adjustment is completed, the electric valve B (130) controls the air outlet pipe (120) to open, and the electric valve A (108) controls the annular airway (305) to stop air intake. S4: When the assembly frame (407) moves forward to the bottom of the material discharge box (301), the lateral electric push rod (320) pushes the push plate (330) to move, thereby pushing the battery cell to be discharged; S5: driving the electric push rod (106) to drive the workbench (101) to move back and forth along the gantry, and welding the energy storage battery cells at different positions under the transmission action of the transmission mechanism; S6: Repeat steps S1-S5 until all energy storage battery cells are assembled.

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