Soft package battery assembly equipment and method thereof

Abstract

The invention relates to the technical field of soft package battery processing, in particular to soft package battery assembling equipment and a method thereof.The soft package battery assembling equipment is provided with a conveying part used for conveying battery cells, and a tab processing assembly, a rubberizing assembly, a stacking assembly, a bending assembly, a tab welding assembly, an upper shell assembly and a shell welding assembly are sequentially arranged in the battery cell conveying direction of the conveying part; the tab processing assembly comprises a cutting piece arranged corresponding to the conveying piece, and the cutting piece can cut the tab; the rubberizing assembly comprises a gluing piece arranged corresponding to the conveying piece so as to paste a film on the battery cell; and the stacking assembly comprises a storage rack and a grabbing piece for conveying the battery cells into the storage rack to be stacked and transferring the battery cells to the conveying piece. The problems that in the prior art, soft package battery processing equipment is insufficient in continuity and large in occupied area, and then the soft package battery processing quality and efficiency are affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of soft-pack battery processing, and particularly relates to a soft-pack battery assembly device and a method thereof. Background Art

[0002] At present, with the rapid development of the new energy industry, soft-pack batteries are increasingly widely used in the fields of power batteries and consumer electronics due to their advantages such as high energy density, good safety, and flexible design. However, there are still many technical bottlenecks in the current processing and production of soft-pack batteries, which seriously restrict industrial upgrading. From the perspective of the production process, the large proportion of manual participation is a key problem to be solved urgently. In the core processes such as pole piece, gluing, stacking, and outer shell installation, the proportion of manual operation is still as high as 40% - 60%. This not only limits the production capacity due to the scale of the workforce, but also causes quality problems such as unstable control accuracy of pole piece burrs and deviation of cell alignment due to differences in the skill levels of operators. Data shows that the defective rate caused by manual operation is 15 - 20 percentage points higher than that of the automated production line. Especially in the production of high-capacity batteries, the risk of internal short circuit caused by manual intervention increases significantly. At the same time, the problem of insufficient equipment coherence in the production system is more prominent. In the existing production lines, although the automation degree of single-machine equipment such as pole piece, gluing, stacking, and outer shell installation has been improved, the material transfer between equipment depends on manual transfer or non-standard connection devices, resulting in an imbalance in the beat matching between processes. This coherence defect also leads to a break in production data, and the process parameters generated by each device running independently cannot be interacted in real time, making it difficult to achieve full-process quality traceability and process optimization. More seriously, the above problems are superimposed on each other, forming a vicious cycle. The low efficiency of manual operation forces enterprises to adopt a production mode of "multiple shifts and high labor", resulting in high production costs; while the poor connection of equipment prolongs the in-process time of products, increasing quality risks such as environmental dust pollution and moisture absorption of the battery core. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems in the prior art that the coherence of the soft-pack battery processing equipment is insufficient and the proportion of manual use is relatively large, which affects the processing quality and efficiency of soft-pack batteries, and to provide a soft-pack battery assembly device and a method thereof.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: A soft-pack battery assembly device, which has a transport member for transporting battery cores. In the direction of the transport member transporting the battery cores, there are successively a pole ear processing assembly, a gluing assembly, a stacking assembly, a bending assembly, a pole ear welding assembly, an upper shell assembly, and an outer shell welding assembly;

[0005] The pole ear processing assembly includes a cutting member arranged corresponding to the transport member, and the cutting member can cut the pole ears;

[0006] The glue - sticking component includes a glue - applying part arranged corresponding to the transporting part to stick a film on the battery cell.

[0007] The stacking component includes a storage rack and a grasping part for transporting the battery cells into the storage rack for stacking and then transferring them onto the transporting part.

[0008] The bending component includes a bending part corresponding to the transporting part to press the tab ears to bend in two directions of the battery cell transported by the transporting part.

[0009] The tab - ear welding component includes a tab - ear welding part arranged corresponding to the transporting part to spot - weld the tab ears to strengthen the connection of multiple tab ears.

[0010] The upper - shell component includes two feeding parts arranged corresponding to the transporting part to cover the outer surface of the battery cell with a shell.

[0011] The shell - welding component includes a first welding component, a flipping component and a second welding component to weld the outer periphery of the top of the shell and then flip and weld the bottom of the shell.

[0012] As a further optimization of a soft - package battery assembly device of the present invention: The cutting part includes a cutting laser, a driving gantry and a height gantry for driving the cutting laser to cut different positions of the tab ears to control the length of the tab ears.

[0013] As a further optimization of a soft - package battery assembly device of the present invention: A transfer robot arm is arranged between the tab - ear processing component and the glue - sticking component, and both the transfer robot arm and the grasping part are corresponding to buffer areas, and the buffer areas can store qualified battery cells for replacement.

[0014] As a further optimization of a soft - package battery assembly device of the present invention: The grasping part includes a stacking robot arm and a transfer - placing robot arm arranged in sequence along the direction of the transporting part for transporting the battery cells to stack the battery cells and then transfer - place them onto the transporting part.

[0015] As a further optimization of a soft - package battery assembly device of the present invention: The bending part includes a first gantry for driving the displacement of a second gantry arranged corresponding to the transporting part, and a bending plate is arranged on the second gantry to press the tab ears to bend in two directions of the battery cell transported by the transporting part.

[0016] As a further optimization of a soft - package battery assembly device of the present invention: A plurality of sampling inspection stations are correspondingly arranged on the transporting part between the tab - ear welding component and the upper - shell component to sample and process the processed battery cells.

[0017] As a further optimization of a flexible battery assembly device of the present invention: a combination station is correspondingly provided on the transmission member between the stacking assembly and the bending assembly to cooperate with the first clamping tray that can be transported by the transport member to position the bus bar at the corresponding position of the battery cell.

[0018] As a further optimization of a flexible battery assembly device of the present invention: the transport member includes a first transport part capable of transporting the first clamping tray and a second transport part capable of transporting the second clamping tray to maintain the quality of the welding of the tab and the bus bar and the welding efficiency of the outer shell.

[0019] As a further optimization of a flexible battery assembly device of the present invention: the first clamping tray includes a lead screw nut pair to stably clamp and position the battery cell and the bus bar, and the second clamping tray includes an elastic member that cooperates with the movable clamping plate and the fixed clamping plate to position the battery cell.

[0020] A flexible battery assembly method includes using a flexible battery assembly device to successively perform processes of cutting, pasting, stacking, bending, tab strengthening, upper shell installation, and outer shell welding on the battery cell.

[0021] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by configuring a feeding component, the battery cells in the battery cell conveying member are grasped and stably placed onto the tab processing component. After the tabs of the battery cells are trimmed by the tab component, they are immediately transferred to the gluing component for gluing treatment. After gluing is completed, the stacking component sequentially grasps and stacks them into a shape, and then places the stacked battery cells onto the first clamping tray on the conveying member. The conveying member is equipped with an opening component to assist in opening the clamping tray, so that the stacking component can accurately place the battery cells. Then, the conveying member transports the first clamping tray carrying the battery cells to the assembly station, facilitating the staff to install the bus bar and precisely positioning the bus bar and the battery cells by closing the first clamping tray. After the bus bar is installed, the conveying member transports the closed clamping tray provided with the battery cells and the bus bar to the bending component to bend the tabs on the battery cells to achieve connection with the bus bar, completing the pre-treatment work of the battery cells. The pre-treated battery cells will continue to be transported through the conveying member and reach the tab welding component to reinforce the tabs of the stacked battery cells after stacking and bending. Subsequently, the conveying member will transport the reinforced stacked battery cells to the upper shell component, and the upper shell component replaces the first clamping tray used by the tab welding component with a second clamping tray. The second clamping tray adopts an elastic structure, which can achieve clamping and positioning of the stacked battery cells and the outer shell, and is convenient for opening and closing at the same time to improve the efficiency of the equipment for flipping and welding the outer shell, that is, to improve the processing efficiency of the battery. The first welding component, flipping component, and second welding component after the upper shell can quickly weld the outer shell. After the welding of the battery cell outer shell is completed, it is detected by the detection component, and the battery cell is clamped into the box by the offline robotic arm for subsequent transfer and use. Thus, the battery processing is largely realized in a streamlined manner, the proportion of manual use is reduced, the processing quality and efficiency of the battery are significantly improved, the appearance rate of unqualified battery products is reduced, and the battery preparation cost is further greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic top view structure diagram of the present invention;

[0023] Figure 2 is a schematic first partial top view structure diagram of the present invention;

[0024] Figure 3 is a schematic second partial top view structure diagram of the present invention;

[0025] Figure 4 is a schematic first structure diagram of the feeding component of the present invention;

[0026] Figure 5 is a schematic second structure diagram of the feeding component of the present invention;

[0027] Figure 6 is a schematic structure diagram of the tab cutting component of the present invention;

[0028] Figure 7Structural schematic diagram of the detection component of the present invention;

[0029] Figure 8 Structural schematic diagram of the flattening component of the present invention;

[0030] Figure 9 Structural schematic diagram of the commutation component of the present invention;

[0031] Figure 10 Structural schematic diagram of the cutting component of the present invention;

[0032] Figure 11 First structural schematic diagram of the glue - sticking component of the present invention;

[0033] Figure 12 Second structural schematic diagram of the glue - sticking component of the present invention;

[0034] Figure 13 First partial structural schematic diagram of the glue - sticking component of the present invention;

[0035] Figure 14 Second partial structural schematic diagram of the glue - sticking component of the present invention;

[0036] Figure 15 First structural schematic diagram of the stacking component of the present invention;

[0037] Figure 16 Second structural schematic diagram of the stacking component of the present invention;

[0038] Figure 17 Structural schematic diagram of the bending component of the present invention;

[0039] Figure 18 Structural schematic diagram of the bending part of the present invention;

[0040] Figure 19 Structural schematic diagram of the flattening component of the present invention;

[0041] Figure 20 Structural schematic diagram of the tab welding component of the present invention;

[0042] Figure 21 Structural schematic diagram of the feeding component of the present invention;

[0043] Figure 22 Structural schematic diagram of the auxiliary welding component of the present invention;

[0044] Figure 23 Structural schematic diagram of the measurement component of the present invention;

[0045] Figure 24 Structural schematic diagram of the DCIR detection component of the present invention;

[0046] Figure 25 Structural schematic diagram of the upper shell component of the present invention;

[0047] Figure 26 Schematic diagram of the disc-changing component of the present invention;

[0048] Figure 27 Schematic diagram of the upper shell component of the present invention;

[0049] Figure 28 Schematic diagram of the first welding assembly of the present invention;

[0050] Figure 29 Schematic diagram of the first perspective structure of the flipping assembly of the present invention;

[0051] Figure 30 Schematic diagram of the second perspective structure of the flipping assembly of the present invention;

[0052] Figure 31 Schematic diagram of the second welding assembly of the present invention;

[0053] Figure 32 Schematic diagram of the detection component of the present invention;

[0054] Markings in the figure: 1. Cell conveyor; 2. Loading assembly; 201. Second robot arm; 202. Transfer plate; 203. Placement piece; 2031. Pull-up cylinder; 2032. Pull-up suction cup; 2033. Placement rack; 204. Adjustment assembly; 2041. Fourth cylinder; 2042. Sliding piece; 2043. First bearing plate; 2044. Anti-bias block; 205. Pushing piece; 2051. Eleventh cylinder; 2052. First connecting plate; 2053. First spring; 2054. Pushing block; 206. Distance adjustment table; 3. Tab processing assembly; 301. Electrode test piece; 3011. First support frame; 3012. First cylinder; 3013. First mounting plate; 3014. Verification head; 3015. Support plate; 3016, detector; 302, adjustment member; 3021, second support frame; 3022, second cylinder; 3023, first rotating cylinder; 3024, first suction cup; 3025, clamping claw cylinder; 303, reversing member; 3031, barcode scanner; 3032, second support plate; 3033, eighth cylinder; 3034, fourth connecting plate; 3035, second rotating cylinder; 3036, ninth cylinder; 3037, clamping claw; 3038, first clamping block; 304, flattening member; 3041, third support frame; 3042, lower pressing block; 3043, upper pressing block; 3044, second mounting plate; 3045, flattening cylinder; 305, cutting member; 3051, first bracket; 3052, driving rack; 30 53. Height rack; 3054. Exhaust gas exhaust pipe; 3055. Cutting laser; 3056. Positioning plate; 3057. First camera; 3058. Processing hole; 3059. Third cylinder; 30510. Avoidance hole; 30511. Feeding pipe; 30512. Limiting slide plate; 30513. Third bracket; 306. Dimension inspection piece; 3061. Inspection rack; 3062. Inspection head; 307. Support base; 4. Glue sticking assembly; 401. Transmission piece; 4011. Transmission belt; 4012. Placement rack; 4013. Guide rail; 402. Carrying base; 403. Glue sticking piece; 4031. Feeding rack; 4032. Glue storage rack; 4033. Adsorption rack; 4034. Waste box; 4035 , glue sticking robot arm; 4036, glue peeling clamp; 404, alignment piece; 4041, alignment frame; 4042, alignment cylinder; 4043, push block; 4044, alignment spring; 405, flip piece; 4051, flip frame; 4052, positioning claw; 4053, third rotating cylinder; 4054, lifting cylinder; 4055, opening and closing cylinder; 406, rolling piece; 4061, rolling rack; 4062, rolling wheel; 407, glue peeling piece; 4071, glue peeling rack; 4072, finger cylinder; 408, observation piece; 4081, observation rack; 4082, observation head; 409, leveling piece; 4091, leveling rack; 4092, top pressure cylinder; 4093, upper clamping head; 4094, lower clamping head;4010. Auxiliary part; 40101. Lifting clamping jaw; 40102. Bi-directional cylinder; 40103. Lifting cylinder; 40104. Auxiliary frame; 5. Stacking assembly; 501. Verification part; 5011. Polishing plate; 5012. Tab observation head; 5013. Second carrier; 502. Stacking robot arm; 503. Buffer zone; 504. Adsorbing part; 505. Stacking piece; 5051. Storage rack; 5052. Stacking row frame; 5053. Pressing cover plate; 5054. Rotary table; 506. Opening assembly; 507. Transfer robot arm; 6. Transporting part; 601. Steering table; 602. First transmission part; 603. Second transmission part; 7. Bending assembly; 701. Fourth support frame; 702. Working frame; 703. Measuring assembly; 704. Lifting assembly; 706. Bending piece; 7061. First row frame; 7062. Second row frame; 7063. Connecting frame; 7064. Third carrier plate; 7065. Impact piece; 7066. Bending plate; 7067. Bending cylinder; 707. Pressing and fixing assembly; 7071. Pressing and fixing frame; 7072. Pressing and fixing cylinder; 7073. Load connecting plate; 7074. Detection frame; 7075. Position measuring instrument; 708. Flattening assembly; 7081. Third row frame; 7082. Fourth row frame; 7083. Vertical telescopic frame; 7084. Auxiliary plate; 7085. Roller; 7086. Bearing block; 8. Assembly station; 9. Transfer robot arm; 10. Tab welding assembly; 1001. Fixed frame; 1002. Auxiliary welding part; 10021. Auxiliary welding frame; 10022. Longitudinal row frame; 10023. Transverse row frame; 10024. Auxiliary fixing frame; 10025. Auxiliary fixing cylinder; 10026. Pushing plate; 10027. Expansion rod; 10028. Shock-absorbing spring; 10029. Pushing and pressing plate; 1003. Feeding part; 10031. Transmission shaft; 10032. Transmission chain; 10033. Lifting tray; 10034. Pressing and fixing wheel; 10035. Pushing-up cylinder; 10036. Measuring instrument; 10037. Restriction block; 10038. Cam divider; 10039. Transmission frame; 1004. Fire prevention assembly; 10041. Guide frame; 10042. Fire extinguisher box; 10043. Monitoring part; 1005. Tab welding part; 10051. Fourth carrier; 10052. Variable pitch row frame; 10053. Auxiliary row frame; 10054. Positioning frame; 10055. Laser welding part; 1006. Guide welding part; 10061. Guide welding frame; 10062. Adjustment platform; 10063. Verification instrument; 10064. Adjustment assembly; 10065. Tab welding nozzle; 11. Measuring assembly; 1101. Frame; 1102. First detection mechanism; 11021. Image acquisition machine; 11022. Camera board; 11023. Fifth support frame; 1103. Shadowless plate; 1104. Supporting and fixing plate; 1105. Differential pressure detection part; 11051. Detection rod; 11052. Multi-purpose cylinder; 11053. First slide plate;1106. DCIR detection component; 11061. Second fixed plate; 11062. Auxiliary connecting plate; 11603. Measuring spring; 11604. Measuring cylinder; 1107. Positioning component; 11071. First swing wheel; 11072. Vertical plate; 11073. Second swing wheel; 11074. Horizontal plate; 12. Sampling station; 13. Upper shell assembly; 1301. Upper shell base; 1302. First opening and closing component; 1303. Disc changing part; 13031. First clamping claw; 13032. Disc changing traveling frame; 130321. Main traveling frame; 130322. Auxiliary traveling frame; 130323. Vertical traveling frame; 1304. Recycling station; 1305. Second opening and closing component; 13051. Opening and closing movable plate; 13052. Pulling cylinder; 13053. Opening and closing cylinder; 1306. Loading part; 13061. Loading seat; 13062. Traveling frame seat; 13063. Shell picking traveling frame; 130631. First upper shell traveling frame; 130632. Second upper shell traveling frame; 130633. Third upper shell traveling frame; 13064. Claw shell cylinder; 13065. Shell storage rack; 13066. Glue coating head; 13067. Confirmation head; 13068. Shell picking cylinder; 14. First welding component; 1401. First welding bed; 1402. Welding frame; 1403. Seventh cylinder; 1404. First sliding seat; 1405. Side welding nozzle; 1406. First mounting seat; 1407. Positioning image machine; 1408. Supporting and fixing cylinder; 1409. Fixed pressing plate; 14010. First laser; 14011. Push plate; 14012. Flange; 14013. Slide bar; 14014. Top edge welding nozzle; 15. Flipping component; 1501. Flipping seat; 1502. Loading rack; 1503. Movable clamping plate; 1504. Folding cylinder; 1505. Flipping slide plate; 1506. Flipping motor; 1507. Flipping claw; 16. Second welding component; 1601. Second welding bed; 1602. Long side welding frame; 1603. Distance adjusting cylinder; 1604. Angle plate; 1605. Long side welding nozzle; 1606. Docking cylinder; 1607. Displacement support; 17. Detection component; 1701. Detection base; 1702. Detection frame; 1703. Detection claw; 1704. Detection slide frame; 1705. Detection cylinder; 1706. Detection loading rack; 1707. Weld seam observation head; 18. Offline robot; 19. First clamping tray; 20. Second clamping tray.; Detailed implementation manners

[0055] To better understand the present invention, the content of the present invention will be further clarified below in conjunction with embodiments. However, the content of the present invention is not limited to the following embodiments.

[0056] As Figure 1 , Figure 2 and Figure 3As shown in the figure, a flexible battery assembly device is provided with a feeding component 2, an ear processing component 3, an adhesive pasting component 4, a stacking component 5, a transporting component 6, a bending component 7, an ear welding component 10, a measuring component 11, an upper shell component 13, a first welding component 14, a flipping component 15, a second welding component 16, a detecting component 17 and a down-line robot 18 arranged in sequence. The feeding component 2 can grab the battery cells conveyed by the battery cell conveying piece 1 and stably place them on the ear processing component 3. After the ears of the battery cells are trimmed by the ear processing component 3, they will be conveyed to the adhesive pasting component 4 for adhesive pasting. After the adhesive pasting is completed, they will be grabbed by the stacking component 5 in sequence and stacked into a shape, and then placed on the first clamping tray 19 provided on the transporting component 6. And the transporting component 6 is provided with a first opening and closing component 1302 to assist in opening the first clamping tray 19 to cooperate with the stacking component 5 to place the stacked battery cells. Subsequently, the transporting component 6 will transport the first clamping tray 19 with the battery cells placed thereon to the assembly station 8, so as to facilitate the staff to install the bus bar by placing the first clamping tray 19 with the battery cells, and close the first clamping tray 19 to position the bus bar and the battery cells. After the installation of the bus bar is completed, the transporting component 6 will transport the first clamping tray 19 with the battery cells and the bus bar after closing to the bending component 7 to bend the ears provided on the battery cells to connect with the bus bar to complete the pre-treatment work of the battery cells. The ear welding component 10 can reinforce the ears of the stacked battery cells after stacking and bending the ears. Subsequently, the transporting component 6 will transport the reinforced stacked battery cells to the upper shell component 13, and replace the first clamping tray 19 used by the ear welding component 10 with a second clamping tray 20 on the upper shell component 13. And the second clamping tray 20 uses an elastic structure, which can realize the clamping and positioning of the stacked battery cells and the outer shell, and can be easily opened and closed to improve the efficiency of the equipment for flipping and welding the outer shell, that is, improve the efficiency of processing the battery. That is, it is convenient for the first welding component 14, the flipping component 15 and the second welding component 16 to perform rapid welding. After the welding of the battery cell outer shell is completed, it can be detected by the detecting component 17 and then clamped into the box by the down-line robot 18 for subsequent transfer and use.

[0057] As Figure 4 and Figure 5 shown in the figure, before the feeding component 2 places the battery cells on the ear processing component 3, in order to prevent the battery cells from contacting or interfering during the transmission process when the battery cells are processed on the ear processing component 3, the adjacent battery cells need to maintain this fixed distance. Therefore, the feeding component 2 includes an adjusting component 204 arranged on the distance adjusting table 206 and used for adjusting the distance between the battery cells. In this embodiment, the number of the adjusting components 204 is two and they are distributed along the width direction of the battery cells. One adjusting component 204 can adjust two battery cells, and two adjusting components 204 can adjust four battery cells at a time, so that the distance between two adjacent battery cells among the four battery cells meets the requirements for the distance between the battery cells in the ear processing component 3.

[0058] The adjustment component 204 includes two first bearing plates 2043 which are oppositely arranged and can move towards or away from each other. The battery cells on the battery cell conveyor 1 are transferred onto the first bearing plates 2043 through the second robotic arm 201 and the transfer plate 202 included in the feeding component 2, and the battery cells on the first bearing plates 2043 after distance adjustment are transferred onto the transmission member 401 applied on the tab processing component 3 through the placing member 203. The first bearing plates 2043 are slidably connected to the distance adjustment table 206. Two sets of sliding members 2042 corresponding to the two sets of first bearing plates 2043 are fixedly connected to the distance adjustment table 206. The sliding members 2042 can assist the sliding of the first bearing plates 2043. The sliding members 2042 include first slide rails. The number of first slide rails in each set is two, and the first slide rails in each set are distributed along the width direction of the first bearing plate 2043. First sliders corresponding to the two first slide rails are fixedly connected to the first bearing plates 2043, and the first sliders can slide along the slide rails. A fourth air cylinder 2041 for driving the two first bearing plates 2043 to move towards and away from each other is arranged between the two first bearing plates 2043. The fourth air cylinder 2041 is fixedly installed on the distance adjustment table 206 and is located below the first bearing plates 2043. The two pistons of the fourth air cylinder 2041 are respectively fixedly connected to the corresponding first bearing plates 2043. When the two first bearing plates 2043 move towards each other, the distance between them decreases; when the two first bearing plates 2043 move away from each other, the distance between them increases. A deviation prevention block 2044 is fixedly connected to the edge of the first bearing plate 2043 facing the tab processing component 3. The top of the deviation prevention block 2044 is higher than the upper surface of the first bearing plate 2043 to limit the battery cells on the first bearing plate 2043 and prevent them from skewing.

[0059] The second robotic arm 201 for driving the transfer plate 202 is arranged on the distance adjustment table 206. The second robotic arm 201 can drive the transfer plate 202 to move in multiple axes. Multiple sets of second suction cups for adsorbing battery cells are arranged on the transfer plate 202, and each set of second suction cups corresponds to one battery cell. In this embodiment, the second suction cups are divided into four groups, and the distance between adjacent two groups of second suction cups corresponds to the distance between the battery cells in the material box, so that one group of second suction cups adsorbs one battery cell. The number of each set of second suction cups is four and they are evenly fixed on both sides of the transfer plate 202. Specifically, two second suction cups in each set are located on one side of the transfer plate 202, and the other two are located on the other side of the transfer plate 202, and the second suction cups on the same side are distributed along the length direction of the transfer plate 202. The second suction cups are fixedly connected to the transfer plate 202 through "L"-shaped connecting pieces, and the connection mode of the "L"-shaped connecting pieces and the transfer plate 202 is bolt connection.

[0060] The placing member 203 includes second connecting plates corresponding one by one to the first bearing plates 2043. A plurality of pulling suction cups 2032 for adsorbing the battery cells are fixedly arranged on the second connecting plates. The second connecting plates are driven by pulling cylinders 2031 to move vertically, and the pulling cylinders 2031 are connected to the placing row frames 2033 arranged on the distance adjusting table 206, so that the second connecting plates can perform horizontal reciprocating motion and vertical reciprocating motion. The number of the second connecting plates is the same as that of the first bearing plates 2043, that is, the number of the second connecting plates is four, and the distance between two adjacent second connecting plates matches the distance between the battery cells in the ear processing assembly 3; a plurality of pulling suction cups 2032 for fixing the battery cells are fixedly arranged on the second connecting plates. Four pulling suction cups 2032 are arranged on each second connecting plate. The four pulling suction cups 2032 are divided into two parts and are respectively located on both sides of the second connecting plate. Two pulling suction cups 2032 on each side are fixedly connected to the second connecting plate through "Z"-shaped connecting pieces.

[0061] When translating the battery cells on the first bearing plate 2043, the placing row frame 2033 drives the first support plate to slide, and then drives the pulling suction cups 2032 to be located above the corresponding battery cells. Subsequently, the pulling cylinder 2031 drives the pulling suction cups 2032 to move downward until they contact and adsorb the battery cells; then the pulling cylinder 2031 drives the pulling suction cups 2032 and the battery cells to rise, and then under the drive of the placing row frame 2033, they move to a position where the battery cells are above the transmission member 401 of the ear processing assembly 3. Next, the pulling cylinder 2031 drives the pulling suction cups 2032 to move downward to place the battery cells on the transmission member 401 provided on the ear processing assembly 3 and separate from the battery cells, completing the feeding.

[0062] One end of the first carrier plate 2043 facing away from the placing member 203 is provided with a pressing member 205 for pushing the battery cell onto the first carrier plate 2043. The pressing member 205 includes a flattening block 2054 and an eleventh air cylinder 2051 provided on the distance adjusting table 206 for pushing the flattening block 2054 to reciprocate. Specifically, the piston end of the eleventh air cylinder 2051 is fixedly connected with a first connecting plate 2052. The first connecting plate 2052 is vertically arranged. The bottom end of the first connecting plate 2052 is fixedly connected with the piston end of the eleventh air cylinder 2051, and the top end of the first connecting plate 2052 is connected with the flattening block 2054. A plurality of first springs 2053 are arranged between the first connecting plate 2052 and the flattening block 2054. The number of the first springs 2053 is two. A plurality of connecting rods are slidably arranged on the first connecting plate 2052. The number of the connecting rods corresponds to the number of the first springs 2053 one by one. The connecting rods are cylindrical structures. One end of each connecting rod is fixedly connected with a baffle to prevent the connecting rod from falling off the first connecting plate 2052. The other end of each connecting rod passes through the first connecting plate 2052 and is fixedly connected with the flattening block 2054. The first springs 2053 are sleeved on the connecting rods. After adjusting the distance between the battery cells on the first carrier plate 2043, the eleventh air cylinder 2051 pushes the flattening block 2054 to move towards the battery cell, and pushes the edge of the battery cell to cooperate with the anti-deviation block 2044 to adjust the position of the battery cell, ensuring that the edges of the battery cells are flush. The setting of the first springs 2053 plays a buffering role to prevent the flattening block 2054 from damaging the battery cell.

[0063] In this embodiment, two first protection claws are arranged on each second connecting plate. Specifically, a grasping air cylinder is fixedly connected to the second connecting plate. The grasping air cylinder drives the two first protection claws to move towards or away from each other. The first protection claw includes a fixing rod fixedly connected to the piston end of the grasping air cylinder. A stop block is fixedly connected to the lower surface of the fixing rod. A protection part is perpendicularly fixed to the end of the stop block facing away from the fixing rod. When the first protection claws move towards each other, the protection part can enter below the battery cell, so that when the lifting suction cup 2032 translates the battery cell, it plays a protective role for the battery cell to prevent it from falling.

[0064] As Figure 6 shown, the tab processing assembly 3 includes a transmission member 401. Along the battery cell transmission direction of the transmission member 401, an electrode testing member 301 for detecting the electrodes of the battery cell tabs, an adjusting member 302 for adjusting the directions of the battery cell tabs, a commutation member 303 for flipping the battery cell, a flattening member 304 for flattening the tabs, a cutting member 305 for cutting the tabs, another flattening member 304 for flattening the tabs, and a size inspection member 306 for detecting the tabs are sequentially arranged.

[0065] As Figure 7As shown, the electrode test piece 301 includes a detector 3016 and a plurality of verification heads 3014 connected to the detector 3016. The verification heads 3014 can contact the electrode tabs of the battery cell. The detector 3016 is fixedly installed on the support base 307 through a first support frame 3011. A first air cylinder 3012 for driving the verification heads 3014 to contact or separate from the battery cell is provided on the first support frame 3011. The first support frame 3011 includes two vertically arranged first vertical rods and a horizontally arranged first horizontal rod. The two first vertical rods are located on both sides of the transmission member 401, and the bottom ends of the first vertical rods are fixedly connected to the support base 307. The connection mode between them is bolt connection. The two ends of the first horizontal rod are respectively fixedly connected to the top ends of the two first vertical rods. The connection mode between them is bolt connection. In this embodiment, the detector 3016 is fixedly installed on the first horizontal rod.

[0066] The first air cylinder 3012 and the verification head 3014 pushed by the first air cylinder 3012 form an electrode detection unit. In this embodiment, the number of electrode detection units is four and they are evenly divided into two groups. The two groups of electrode detection units are spaced apart along the battery cell conveying direction. The electrode detection units in each group are respectively located on both sides of the corresponding transmission member 401. Each group of electrode detection units detects one battery cell, that is, the electrode tabs of two battery cells can be detected simultaneously. In this embodiment, each electrode detection unit has four verification heads 3014.

[0067] The connection mode between the first air cylinder 3012 and the first support frame 3011 is that detection connecting plates are fixedly connected to the first vertical rods of the first support frame 3011. The length direction of the detection connecting plates is parallel to the battery cell conveying direction. The connection mode between the detection connecting plates and the first support frame 3011 is bolt connection. Two first mounting plates 3013 are fixedly connected to each detection connecting plate. The connection mode between them is bolt connection. The first air cylinder 3012 is fixedly installed on the first mounting plates 3013. A third connecting plate is fixedly connected to the end of the piston rod of the first air cylinder 3012. The four verification heads 3014 are fixedly connected to the third connecting plate. A plurality of support plates 3015 capable of supporting the electrode tabs are fixedly connected to the first mounting plates 3013. The support plates 3015 are located at the bottom of the first mounting plates 3013. The connection mode between them is bolt connection.

[0068] The working process of the electrode test piece 301 is as follows: the transmission piece 401 conveys the battery cell to this component station, the tab is located between the pallet 3015 and the verification head 3014, and the lower surface of the tab contacts the upper surface of the pallet 3015; the first cylinder 3012 drives the corresponding verification head 3014 to move downward until the verification head 3014 contacts the corresponding tab; the detector 3016 detects the tab to determine the positive and negative poles of the battery cell and transmits them to the control system; after the detection is completed, the first cylinder 3012 drives the verification head 3014 to rise to separate the verification head 3014 from the tab, and the transmission piece 401 conveys the battery cell to the next station.

[0069] As Figure 6As shown, if the electrode direction of the battery cell tab is correct, the adjusting member 302 does not work. If the electrode direction of the battery cell tab is incorrect, the control system controls the adjusting member 302 to adjust its electrode direction. The adjusting member 302 includes a first suction cup 3024 for grasping the battery cell and a jaw cylinder 3025 for assisting the first suction cup 3024 to clamp. The first suction cup 3024 performs vertical reciprocating motion through a second cylinder 3022 and rotates through a first rotary cylinder 3023. The second cylinder 3022 is installed on the support base 307 through a second support frame 3021. Among them, the second support frame 3021 includes two vertically arranged second vertical rods and a horizontally arranged second horizontal rod. The two second vertical rods are located on both sides of the transmission member 401, and the bottom ends of the second vertical rods are fixedly connected to the support base 307. The connection method between the two is bolt connection. The two ends of the second horizontal rod are respectively fixedly connected to the top ends of the two second vertical rods. The connection method between the two is bolt connection. The connection method between the second cylinder 3022 and the second support frame 3021 is that a second slide cylinder is fixedly installed at the central position of the second horizontal rod. The second cylinder 3022 is fixed on the slide of the second slide cylinder and can drive the second cylinder 3022 and the first suction cup 3024 to move along the battery cell transmission direction. The piston end of the second cylinder 3022 is connected to the first rotary cylinder 3023, and the first rotary cylinder 3023 is connected to the first suction cup 3024. Specifically, the piston end of the first rotary cylinder 3023 is fixedly connected to a first rotating plate. Two symmetrically distributed first connecting pieces are fixedly connected to the first rotating plate. One end of the first connecting piece is fixedly connected to the first rotating plate. The connection method between the two is bolt connection. The other end of the first connecting piece is fixedly installed with the first suction cup 3024. Two first suction cups 3024 are installed on each first connecting piece. A jaw cylinder 3025 is provided on the first rotating plate. The jaw cylinder 3025 is provided with two second protective claws. The two second protective claws are driven to move towards or away from each other by a clamping cylinder. The clamping cylinder is a double-acting cylinder and is fixedly installed at the central position of the first rotating plate and below the first rotating plate. The two second protective claws are correspondingly fixed on the two side pistons of the clamping cylinder. The end of the second protective claw is provided with a bent portion that can be located below the battery cell. And when the first suction cup 3024 grabs and rotates the battery cell, the bent portion of the second protective claw is located below the battery cell, playing a protective role to prevent the battery cell from falling.

[0070] The working process of the adjustment piece 302 is that the electrode test piece 301 detects the electrode of the battery cell. If the electrode direction of the battery cell is opposite, the electrode direction needs to be adjusted through the adjustment piece 302. Specifically, the second cylinder 3022 drives the first rotating cylinder 3023 and the first rotating plate to move downward, thereby driving the first suction cup 3024 to move downward until it contacts the upper surface of the battery cell, and the first suction cup 3024 adsorbs the battery cell; the second cylinder 3022 drives the first suction cup 3024 and the battery cell to move upward to the desired position, and the first rotating cylinder 3023 drives the battery cell to rotate 180° to adjust the electrode direction; the second cylinder 3022 drives the first suction cup 3024 and the battery cell to move downward until the battery cell is placed on the transmission piece 401, and the first suction cup 3024 separates from the battery cell and rises.

[0071] like Figure 9 As shown, the reversing member 303 includes a second support plate 3032 disposed on a support base 307, a barcode scanner 3031 and two groups of clamping jaws 3037 driven by two ninth cylinders 3036 to clamp the battery cell close to each other, a clamping area is formed between each group of two clamping jaws 3037, and the two clamping jaws 3037 move toward each other so that the edge of the battery cell contacts the clamping jaws 3037, and the two ninth cylinders 3036 are driven to flip by a second rotating cylinder 3035 disposed on a fourth connecting plate 3034. The second support plate 3032 is connected to the support base 307 by bolts. The fourth connecting plate 3034 is connected to the second support plate 3032 in such a way that two parallel and vertically arranged slide rails are fixedly connected to the second support plate 3032, and the connection between the two is bolted, and a slider corresponding to the slide rail is fixedly connected to the fourth connecting plate 3034, and the slider can slide along the slide rail. The fourth connecting plate 3034 is driven to reciprocate in the vertical direction by the eighth cylinder 3033. The eighth cylinder 3033 is fixedly mounted on the side of the second supporting plate 3032 away from the transmission member 401. The fourth connecting plate 3034 is located on the side close to the transmission member 401. A third fixing plate is vertically fixed to the center of the top of the fourth connecting plate 3034. The end of the third fixing plate passes through the second supporting plate 3032 and is fixedly connected to the end of the piston rod of the eighth cylinder 3033, so that the eighth cylinder 3033 can drive the fourth connecting plate 3034 to move vertically. The ninth cylinder 3036 is a double-acting cylinder, that is, one end of the two clamping jaws 3037 is fixedly connected to the pistons on both sides of the ninth cylinder 3036, and the other end of the clamping jaws 3037 extends toward the other side of the transmission member 401.

[0072] In this embodiment, a plurality of first clamping blocks 3038 distributed along the length direction are fixedly connected to each clamping jaw 3037. There are two first clamping blocks 3038 on each clamping jaw 3037. The first clamping blocks 3038 are connected to the clamping jaws 3037 by bolts. A groove is formed in the first clamping block 3038 with an opening facing the clamping area and allowing the edge of the battery cell to extend into it.

[0073] In this embodiment, two sensors corresponding to the two clamping units are fixedly connected to the fourth connecting plate 3034, and an induction piece is fixedly connected to the second rotating disc. The sensors can sense the induction piece during the rotation of the clamping jaws 3037.

[0074] The working process of the commutation member 303 is as follows. First, the barcode scanner 3031 scans the battery cell identification. If the barcode scanner 3031 fails to retrieve the battery cell identification, the eighth cylinder 3033 drives the clamping jaws 3037 to move downward to the required position, and the ninth cylinder 3036 drives the two clamping jaws 3037 to move towards each other. The movement of the two clamping jaws 3037 towards each other causes the edge of the battery cell to contact the clamping jaws 3037. Specifically, the edge of the battery cell enters the groove and contacts the bottom of the groove to fix the battery cell. After the eighth cylinder 3033 drives the clamping jaws 3037 to move upward to the required position, the second rotary cylinder 3035 drives the clamping jaws 3037 to rotate 180° to make the battery cell identification face upward, completing the flipping. After the eighth cylinder 3033 drives the clamping jaws 3037 to move downward until the battery cell is located in the transmission member 401, the ninth cylinder 3036 drives the two clamping jaws 3037 to move away from each other, and then the eighth cylinder 3033 drives the clamping jaws 3037 to move upward, enabling the transmission member 401 to convey the battery cell to the next working station.

[0075] Such as Figure 8As shown in the figure, the flattening member 304 includes multiple groups of upper pressing blocks 3043 and lower pressing blocks 3042 located on both sides of the transmission member 401. A flattening area for the battery core tab to enter is formed between the upper pressing block 3043 and the lower pressing block 3042 in each group. The flattening member 304 further includes a third support frame 3041 fixedly connected to the support base 307. Specifically, the fourth support frame 701 includes two vertically arranged third vertical rods, which are located on both sides of the transmission member 401, and the bottom ends of the two third vertical rods are fixedly connected to the support base 307, and the connection method between the two is bolt connection. Each third vertical rod is fixedly connected with a fourth fixing plate, and the connection method between the two is bolt connection; two second mounting plates 3044 distributed along the battery core transmission direction are fixedly connected to each fourth fixing plate, and the connection method between the second mounting plate 3044 and the fourth fixing plate is bolt connection. Two vertically and oppositely arranged flattening cylinders 3045 are fixedly installed on each second mounting plate 3044. The two flattening cylinders 3045 are respectively located at the top and bottom of the second mounting plate 3044. The flattening cylinder 3045 located at the top is fixedly connected to the upper pressing block 3043, and the flattening cylinder 3045 located at the bottom is fixedly connected to the lower pressing block 3042. That is, in this embodiment, the flattening member 304 can work on two battery cores simultaneously. The flattening member 304 flattens the battery core tabs once to improve the flatness of the tabs, which is convenient for subsequent laser cutting and improves the accuracy of the tabs.

[0076] As Figure 10 shown in the figure, the cutting member 305 includes a first camera 3057, a cutting laser 3055, and a driving cross frame 3052 and a height cross frame 3053 for driving the cutting laser 3055 and the first camera 3057. The first camera 3057 collects the image of the tab and transmits it to the control system, and the control system identifies the image and confirms the initial position of the cutting laser 3055; in this embodiment, the first camera 3057 and the cutting laser 3055 are called laser cutting units. The number of laser cutting units is two, and they are respectively located on both sides of the transmission member 401. One laser cutting unit can cut the tabs of two battery cores on this side.

[0077] The driving cross frame 3052 can drive the height cross frame 3053 to reciprocate along the battery core transmission direction. The height cross frame 3053 is connected with a fifth mounting plate and can drive the fifth mounting plate to reciprocate horizontally along the direction perpendicular to the battery core transmission direction. Both the first camera 3057 and the cutting laser 3055 are arranged on the fifth mounting plate.

[0078] The first support frame 3051 includes two first vertical rods distributed along the battery core transmission direction. The bottom ends of the first vertical rods are fixedly connected to the support base 307. Specifically, the bottom ends of the two first vertical rods are commonly connected with an intermediate plate, and the connection method between the first vertical rod and the intermediate plate is bolt connection.

[0079] The fifth fixing plate is fixedly connected to the sixth fixing plate. The connection method between the two is bolt connection. The first camera 3057 is connected to the sixth fixing plate, and a light source surrounding the first camera 3057 is arranged on the sixth fixing plate to improve the quality of the tab image.

[0080] A positioning pressing plate 3056 parallel to the transmission member 401 is arranged on the telescopic end of the third cylinder 3059. Among them, the positioning pressing plate 3056 is a square plate-like structure, and a processing hole 3058 for exposing the tab is opened on the positioning pressing plate 3056. There are four processing holes 3058, which are respectively located at the four corners of the positioning pressing plate 3056 and correspond to the tabs of the two battery cells, that is, one tab corresponds to one processing hole 3058. A blanking pipe 30511 is correspondingly arranged at the bottom of the processing hole 3058. The side wall of the processing hole 3058 is an inclined surface so that the cut tab waste can fall into the blanking pipe 30511 for collection, so that the operator can conveniently carry out subsequent processing; an avoidance hole 30510 is opened on the side wall of the processing hole 3058. The positioning pressing plate 3056 is driven by the third cylinder 3059 to move vertically back and forth, and the positioning pressing plate 3056 can lift the tab during the vertical movement process to reduce the influence of the transmission member 401 on the battery cell. The number of the third cylinders 3059 is two, which are respectively located on both sides of the transmission member 401. A third bracket 30513 fixedly connected to the support base 307 is arranged below the third cylinder 3059. The third cylinder 3059 is fixedly installed on the third bracket 30513, and the piston end of the third cylinder 3059 is fixedly connected to the lower surface of the positioning pressing plate 3056. A limiting slide plate 30512 is fixedly connected to each third bracket 30513, and a limiting cylinder fixedly connected to the positioning pressing plate 3056 is arranged on the limiting slide plate 30512 to maintain the stability of the movement of the positioning pressing plate 3056. An exhaust gas pipe 3054 is arranged on the fifth mounting plate for discharging the gas generated by laser cutting.

[0081] The working process of the cutting member 305 is as follows: The battery cell is conveyed to the upper part of the positioning pressing plate 3056 by the transmission member 401. Subsequently, the third cylinder 3059 will lift the positioning pressing plate 3056 to hold up the battery cell. Then, the driving gantry 3052 drives the first camera 3057 to collect the image of the corresponding tab and transmit it to the control system. The control system identifies the image and confirms the initial position of the cutting laser 3055 and the cutting path of the cutting laser 3055. After the cutting laser 3055 cuts the corresponding tab, it cuts another tab on the same side again; after the four tabs are cut, the positioning pressing plate 3056 moves downward, and then the transmission member 401 conveys the battery cell to the dimension inspection member 306 arranged on the support base 307. As Figure 6As shown, the dimension inspection piece 306 includes an inspection rack 3061 fixedly arranged on the support base 307. There are two inspection racks 3061, which are symmetrically arranged on both sides of the transmission piece 401 to correspond to the positions of the cut tabs. The inspection rack 3061 is provided with inspection heads 3062 to detect the length of the cut tabs, so as to determine whether the trimming meets the requirements.

[0082] As Figure 1 and Figure 2 shown, after the tabs are processed, the transfer robot arm 9 will cooperate with the corresponding transfer suction cups to place the battery cells after cutting and processing the tabs onto the tape pasting assembly 4. As Figure 11 , Figure 12 , Figure 13 and Figure 14 shown, the tape pasting assembly 4 includes a tape pasting assembly 4 for pasting films on the battery cells, and the tape pasting assembly 4 corresponds to a stacking assembly 5 that can stack the battery cells after pasting the films. The tape pasting assembly 4 includes a bearing base 402. The bearing base 402 is provided with a transmission piece 401 and a back glue pasting structure, a protective glue pasting structure, a glue tearing piece 407, an observation piece 408, a flattening piece 409, and an auxiliary piece 4010 that are sequentially distributed along the transmission piece 401, so as to paste the corresponding films on the multiple battery cells that make up the complete soft-pack battery as required, so as to facilitate stacking and combining multiple battery cells together later. As Figure 15 and Figure 16 shown, the stacking assembly 5 includes a stacking robot arm 502 and a transfer and placement robot arm 507. A calibration piece 501, a buffer area 503, and a stacking piece 505 are arranged within the operating range of the stacking robot arm 502, so as to sequentially detect and transfer and place the battery cells after tape pasting onto the stacking piece 505 for stacking. The transfer and placement robot arm 507 can adsorb and transfer the multiple battery cells stacked and combined by the stacking piece 505 through the matching suction attachment 504 of the transfer and placement robot arm 507, that is, transfer them to the first clamping tray 19 on the subsequent transmission piece 401. At the same time, the opening and closing of the first clamping tray 19 is realized through the opening component 506 arranged on the transmission piece 401. Then, after the transfer and placement robot arm 507 places the stacked battery cells into the first clamping tray 19, it is closed and positioned, and then the subsequent processing steps can be carried out.

[0083] The buffer area 503 can also be arranged within the working range of the transfer robot arm 9, so as to replace the good battery cells when there is an error in the tab cutting of the battery cells, and perform subsequent processing, thereby improving the yield rate of the final pre-treated battery cell products.

[0084] As Figure 1 , Figure 2 , Figure 11 , Figure 12 , Figure 14 and Figure 16As shown in the figure, the transmission part 401 includes a conveyor belt 4011 provided on a bearing base 402 and driven by a power source. A plurality of placement racks 4012 for storing and stably transporting soft-pack battery cells are evenly arranged on the outer peripheral surface of the conveyor belt 4011. A guide rail 4013 is slidably fitted at the edge of the placement rack 4012, and the guide rail 4013 is fixedly provided on the bearing base 402 or the support base 307 to ensure the stability of the conveyor belt 4011 for stably transporting soft-pack battery cells for gluing. Both the back glue gluing structure and the protective glue gluing structure include a flipping part 405, an auxiliary part 4010, a gluing part 403, and a rolling part 406 arranged along the transmission direction of the conveyor belt 4011, so as to flip the battery cell to the corresponding side as required, and then the back glue or the protective film can be stably glued to the battery cell according to the corresponding order requirements. The flipping part 405 includes a flipping frame 4051 provided on the bearing base 402. A third rotating cylinder 4053 driven by a lifting cylinder 4054 to move vertically is provided on the flipping frame 4051. The third rotating cylinder 4053 drives two positioning claws 4052 driven by an opening and closing cylinder 4055. After the placement rack 4012 carrying the battery cell passes by, it will be controlled according to the corresponding existing electronic control system to make the opening and closing cylinder 4055 drive the two positioning claws 4052 to clamp the battery cell. Then the lifting cylinder 4054 will operate to lift the battery cell to a certain height. Next, the third rotating cylinder 4053 can rotate to flip the battery cell, and after rotating the battery cell, it will be reset to place the battery cell back into the placement rack 4012 for subsequent processing. After the flipping part 405 flips and adjusts the battery cell or when flipping is not required, the battery cell will move along the running direction of the conveyor belt 4011. Finally, the auxiliary part 4010 on the bearing base 402 will be used to repeatedly sort the position of the battery cell in the placement rack 4012 to ensure the accuracy of the subsequent processing of the battery cell. The auxiliary part 4010 includes an auxiliary frame 40104 provided on the bearing base 402. A two-way cylinder 40102 is slidably provided on the auxiliary frame 40104. Lifting clamping claws 40101 are provided at both telescopic ends of the two-way cylinder 40102, and the two-way cylinder 40102 is driven by a lifting cylinder 40103 provided on the auxiliary frame 40104. When the battery cell moves to the auxiliary part 4010, the lifting cylinder 40103 will drive the two-way cylinder 40102 and the lifting clamping claws 40101 to approach the corresponding battery cell. Next, the two-way cylinder 40102 will drive the two lifting clamping claws 40101 to clamp the battery cell to make the battery cell reset in the placement rack 4012. A centering part 404 is also correspondingly provided on the flipping part 405 and fixed on the bearing base 402. The centering part 404 includes a centering frame 4041 fixed on the bearing base 402. A centering cylinder 4042 is fixedly provided at the top of the centering frame 4041. The centering cylinder 4042 is connected with a pressing block 4043 through a centering spring 4044. The pressing block 4043 can press the battery cell clamped by the two positioning claws 4052 under the push of the centering cylinder 4042 to further accurately position the battery cell in the placement rack 4012.The gluing component 403 includes a loading gantry 4031 that is vertically distributed perpendicular to the conveyor belt 4011 and is provided on the carrying base 402. The loading gantry 4031 can vertically expand and contract and can cyclically displace in the direction perpendicular to the conveyor belt 4011. The bottom of the vertically expandable end of the loading gantry 4031 corresponds to a plurality of glue storage racks 4032 fixedly provided on the carrying base 402. The glue storage racks 4032 are composed of four guide bars distributed at the four corners of the film and fixed on the carrying base 402, so as to store a plurality of films to facilitate the adsorption of the adsorption rack 4033 provided at the vertically expandable end of the loading gantry 4031, and be placed on the film tearing platform provided on the carrying base 402 along with the displacement of the loading gantry 4031. The film tearing platform corresponds to a film tearing gripper 4036 driven by a film tearing gantry provided on the carrying base 402. The film tearing gripper 4036 can cooperate with the film tearing gantry to tear off the release paper film on one side of the corresponding film. When the film tearing gripper 4036 is released, a waste box 4034 provided on the carrying base 402 and corresponding to the film tearing displacement range of the film tearing gripper 4036 is used to collect the torn release paper film, thus facilitating the operation personnel to process it subsequently. Specifically, how the loading gantry 4031 drives the adsorption rack 4033 and the film to correspond to the film tearing gripper 4036 to complete the film tearing operation is realized by a sensor provided on the carrying base 402 and corresponding to the film tearing gripper 4036 in cooperation with the corresponding electronic control system. What kind of sensor and electronic control system are used, and how the sensor and the electronic control system cooperate to realize the film tearing operation should be understood as the prior art. After the film tearing of the film is completed, the film after film tearing can be adsorbed and placed on the battery cell positioned by the auxiliary component 4010 through the glue sticking robotic arm 4035. After the film is adhered to the battery cell, after the positions of the wires are aligned by the auxiliary component 4010 and the alignment component 404, a rolling component 406 that is distributed along the transmission direction of the conveyor belt 4011 and is fixedly provided on the carrying base 402 is used to roll the side of the film where the release paper is not torn or the side of the protective glue without adhesive for protection, so as to improve the stability and flatness of the film adhered to the battery cell, that is, to make the film stably adhered to the battery cell. There are two sets of an opening and closing air cylinder 4055 and two positioning claws 4052 as a group, and the two sets can improve the efficiency of positioning and flipping the battery cell. The rolling component 406 includes a rolling gantry 4061 fixedly provided on the carrying base 402, and the rolling gantry 4061 drives a rolling wheel 4062 to roll the film to improve the bonding stability between the film and the battery cell.

[0085] After applying adhesive to one side of multiple battery cells in the middle of the soft-pack battery and one side of the battery cells at the edge facing the center of the multiple battery cells, and applying protective glue to the outside of the two outermost battery cells of the soft-pack battery, the soft-pack battery will sequentially pass through the adhesive tearing member 407, the observation member 408, and the leveling member 409 provided on the carrier base 402 to sequentially perform the operations of tearing off the release paper film not torn off on the film, detecting the quality of the applied glue, leveling the tabs of the battery cells, and leveling the position of the wires. The adhesive tearing member 407 includes an adhesive tearing frame 4071 fixedly provided on the carrier base 402, and the adhesive tearing frame 4071 drives a finger cylinder 4072 to remove the release paper protective film not torn off on the film under the drive of the adhesive tearing frame 4071. The observation member 408 includes an observation frame 4081 fixedly provided on the carrier base 402. An observation head 4082 is fixedly provided above the conveyor belt 4011 on the observation frame 4081. The observation head 4082 is a camera structure to observe the quality of the applied glue by photographing the applied glue state on the battery cell. The leveling member 409 includes two leveling frames 4091 fixedly provided on the carrier base 402. The opposite ends of the two leveling frames 4091 are arranged corresponding to the conveyor belt 4011. A pressing cylinder 4092 and a lower clamping head 4094 are fixedly provided at the opposite ends of the two leveling frames 4091. An upper clamping head 4093 is provided at the movable end of the pressing cylinder 4092 facing the lower clamping head 4094. The tabs of the battery cell can pass between the upper clamping head 4093 and the lower clamping head 4094, and the upper clamping head 4093 is driven by the pressing cylinder 4092 to press, so as to level the tabs of the battery cell. Finally, the alignment can be assisted by the auxiliary member 4010 to facilitate the subsequent stacking assembly 5 to stack multiple battery cells one by one and bond the multiple battery cells together.

[0086] The checking part 501 can detect whether the tab of the battery cell after gluing and the glue application exceed the edge of the battery cell. The checking part 501 includes a second carrier 5013 provided at the corresponding tail of the transmission belt 4011 of the carrying base 402. Lightening plates 5011 are provided at positions corresponding to the tabs of the battery cells on the second carrier 5013. The lightening plate 5011 is a square lamp shade with a light source inside, so as to position the battery cell by supporting the tab of the battery cell to avoid film adhesion. Ear observation heads 5012 are provided at the tops of the second carrier 5013 corresponding to the lightening plates 5011. The ear observation head 5012 can detect the integrity of the tab of the battery cell and whether the glue application exceeds the edge of the battery cell to cover part of the tab. The battery cells after being detected can be grabbed by the stacking robot arm 502 in cooperation with the corresponding suction attachment 504 and conveyed into the stacking part 505 for stacking. An anti-adhesive material is provided on the suction attachment 504 on the stacking robot arm 502 to clamp and place the battery cell provided with the film. If problems such as tab breakage, damage or glue application position deviation are found after being detected by the checking part 501, the corresponding battery cell will be placed in the buffer area 503, and the corresponding good battery cell placed in advance will be grabbed from the buffer area 503 and stacked into the stacking part 505. The stacking part 505 includes a rotating table 5054. Two storage racks 5051 are symmetrically provided at the edge of the rotating disk of the rotating table 5054. The storage rack 5051 is a frame formed by limiting the top angle to be rectangular and fixed on the rotating disk, so as to facilitate the stacking robot arm 502 to put the detected battery cells in, and rely on the gravity of multiple battery cells to make multiple battery cells squeeze the film to realize the stacking combination of multiple battery cells. A stacking row frame 5052 is provided on one side of the storage rack 5051 facing the center of the turntable. A pressing cover plate 5053 is provided on the top of the stacking row frame 5052, so as to press the top battery cell after all the battery cells of one battery are placed in the storage rack 5051, so that all the battery cells are bonded more tightly under the drive of the stacking row frame 5052. There are two checking parts 501 and two stacking robot arms 502, which cooperate with the two storage racks 5051 provided on the rotating table 5054 to improve the stacking efficiency of the battery cells. After the stacking of the battery cells is completed, the rotating table 5054 will rotate to transfer the internally controlled storage rack 5051 to the working range of the stacking robot arm 502. At the same time, the pressing cover plate 5053 of the other storage rack 5051 will be driven by the stacking row frame 5052 to be separated and moved to the working range of the transfer robot arm 507. Subsequently, the transfer robot arm 507 will grab and transfer to convey the stacked battery cells to the first clamping tray 19 provided on the transport part 6. At the same time, the opening component 506 provided on the transport part 6 is used to open the first clamping tray 19, so that the transfer robot arm 507 can put the stacked battery cells in. Subsequently, the transmission part 401 will transport the first clamping tray 19 in the open state and with stacked battery cells inside to the assembly station 8 to install the bus bar and close the first clamping tray 19. Next, the transport part 6 will transport the first clamping tray 19 clamping the battery cells and the bus bar in the closed state to the bending component 7 for bending treatment.The models of the stacking robotic arm 502, the rotating table 5054, the transfer robotic arm 507, the observation head 4082, and the tab observation head 5012, as well as the way to achieve collaborative work through the electronic control device, should all be understood as the prior art.

[0087] The opening component 506 includes a bearing member provided on the transmission member 401 and a vertical telescopic member provided on the bearing member. The vertical telescopic member can drive a longitudinal telescopic member connected to the vertical telescopic member. A driving member is provided on the longitudinal telescopic member, and the driving member can be docked with the screw rod included in the tray. Specifically, the driving member is docked with the rotating disk provided at the end of the screw rod. After the operator adjusts, the driving member can be automatically controlled to be docked with the rotating disk, and the screw rod can be driven to rotate forward and backward to open or close the clamping structure, so as to release or clamp the battery assembly for battery assembly processing.

[0088] The bearing member includes a gantry fixed by anchor plates. There are two symmetrically arranged reinforcement beams inside the gantry to improve the structural stability of the gantry. Two fourth bearing plates included in the two symmetrically arranged vertical telescopic members are provided on the outside of the gantry. Telescopic cylinders are fixedly provided on the two fourth bearing plates. The telescopic ends of the two telescopic cylinders are arranged towards the anchor plates, and the telescopic ends of the two telescopic cylinders are respectively fixedly connected to both ends of the displacement frame in the length direction to drive the displacement frame to vertically displace under the support of the gantry. A slide rail that slidably cooperates with the displacement frame is provided on the gantry to ensure the stability of the displacement frame movement. A driving plate included in the longitudinal telescopic member is fixedly provided on the displacement frame. A driving motor is fixedly provided on the driving plate. A control screw rod is provided on the output shaft of the driving motor. A moving plate is threadedly connected to the control screw rod and slidably cooperates with an auxiliary guide rail provided on the driving plate. A control motor included in the driving member is fixedly provided on the moving plate. A matching disk is fixedly provided on the output shaft of the control motor. A plurality of docking columns are evenly provided on the matching disk, and the plurality of docking columns can be docked with the docking holes opened on the rotating disk to drive the screw rod to rotate forward and backward. A positioning instrument is fixedly provided on the moving plate corresponding to the docking columns. Specifically, the positioning instrument is a laser depth finder, which can cooperate with the electromechanical system to determine the moving position of the moving plate, so that the docking columns and the docking holes can be stably docked and the relative positions of the docking columns and the docking holes can be maintained. The circle formed by the plurality of docking columns is docked with the plurality of docking holes annularly opened on the rotating disk, which is convenient for the operator to adjust the docking. The positioning instrument, the control motor, the driving motor, and the telescopic cylinder can all be regulated by the electromechanical system. Specifically, how the electromechanical system is set up, controlled, and debugged and applied should all be understood as the prior art for the operator to control after debugging. The control motor and the driving motor are both forward and reverse stepping motors for easy control by the electromechanical system.

[0089] The first clamping tray 19 is provided with a rectangular bottom plate with guide rollers at all four top corners. The bottom plate is provided with a pad elevation frame, a clamping assembly, and a clamping and fixing assembly. The clamping assembly is located in the width direction of the pad elevation frame, while the clamping and fixing assembly is located in the length direction of the pad elevation frame. A placement plate is fixedly provided at the top of the pad elevation frame. The placement plate can carry a battery assembly, including a soft-pack battery cell, and cooperate with the clamping assembly to clamp and position the soft-pack battery cell. The clamping assembly includes a fixed clamping claw and a movable clamping claw. The fixed clamping claw is fixed on the bottom plate. Two adjusting sliding seats are provided at the bottom of the movable clamping claw. The adjusting sliding seats are slidably matched with the auxiliary sliding rails on the bottom plate. A control screw rod threaded to the movable clamping claw is provided between the two adjusting sliding seats. Protective pads are provided on the opposite surfaces of the fixed clamping claw and the movable clamping claw. The protective pads are made of elastic rubber material to protect the surface of the soft-pack battery cell in the battery assembly during the process of the movable clamping claw and the fixed clamping claw clamping the battery assembly. The control screw rod can control the displacement of the movable clamping claw, so that the distance between the movable clamping claw and the fixed clamping claw is convenient for the operator to operate. A docking wheel is fixedly provided at the end of the control screw rod passing through the movable clamping claw and the corresponding bearing seat. The docking wheel can cooperate with the corresponding opening assembly 506 to assist the operator in mechanically adjusting the position of the movable clamping claw. The clamping and fixing assembly includes a positioning plate provided on one side in the length direction of the placement plate. The positioning plate is vertically slidably provided on the bottom plate. Specifically, sliding strips are fixedly provided on both sides of the positioning plate along the width direction of the placement plate. The sliding strips are slidably provided on the sliding rail seats fixed on the bottom plate. Adjusting waist slots are provided on the positioning plate. A plurality of plug-in blocks are connected to the adjusting waist slots by screws, so as to facilitate the operator to adjust the positions of the plug-in blocks according to different processing conditions of the soft-pack battery. The plug-in blocks can be inserted between the bus bar and the soft-pack battery cell to position the distance between the bus bar and the soft-pack battery cell, align the length direction of the soft-pack battery cell to the designed position, and at the same time make the tab passing through the bus bar and bent be in stable contact with the bus bar. The plug-in blocks can cooperate with the stabilizing blocks fixedly provided on the top surface of the positioning plate to form a clamping area to clamp and position the position of the bus bar. A power groove is provided at the center of the positioning plate. The power groove is inclined. A power column is slidably provided in the power groove. Specifically, a wear-resistant wheel is rotatably provided outside the power column to reduce the mutual friction when the power column slides in the power groove, so that the power column can easily slide in the power groove. The power column is fixedly connected with a pushing slide plate. The pushing slide plate is slidably provided on the support sliding rail on the bottom plate, and a tightening screw rod is provided on the pushing slide plate. In specific use, the operator can drive the pushing slide plate to drive the power column and the wear-resistant wheel to displace in the power groove, and then cooperate with the inclined power groove to make the positioning plate stably vertically displace under the support of the sliding strips and the sliding rail seats. When the positioning plate vertically moves upward, the plug-in blocks will first be inserted between the bus bar and the soft-pack battery cell, and then guide the soft-pack battery cell and the bus bar to maintain a corresponding distance, and guide the soft-pack battery cell to displace to the designed position. As the positioning plate gradually rises, the bus bar will enter the clamping area to further position the position of the bus bar.After the positioning plate moves into place, the operator can turn and tighten the screw so that the tightened screw presses against the bottom plate to stabilize the position of the positioning plate, thereby maintaining the processing stability of the subsequent soft-pack battery cells. After repeatedly operating the two clamping assemblies, the two busbars and multiple soft-pack battery cells can be positioned at the designed positions on the placement plate. Finally, the operator can operate the clamping assembly to clamp and position multiple soft-pack battery cells for subsequent processing of the battery assembly.

[0090] The cover plate member includes a pressing plate for covering the tops of multiple soft-pack battery cells. The pressing plate is provided with clamping holes that can be clamped with the clamping heads fixedly provided at the tops of the movable clamping claws and the fixed clamping claws to position its own position. At the same time, the clamping holes can also limit the positions of the fixed clamping claws and the movable clamping claws to maintain the stability of the fixed clamping claws and the movable clamping claws in positioning multiple soft-pack battery cells. On both sides in the length direction of the cover plate member, multiple positioning blocks and multiple auxiliary blocks are provided. A positioning area for clamping the busbar can be formed between the auxiliary blocks and the positioning blocks, and the positioning area can cooperate with the clamping area to further stabilize the relative position of the busbar. The auxiliary blocks are connected to the mating waist grooves opened on the pressing plate by screws to facilitate the operator to adjust the positions of the auxiliary blocks to adapt to the tabs of the soft-pack battery cells.

[0091] The opening assembly 506 includes a docking post that can cooperate with the docking wheel included in the first clamping tray 19. The docking wheel can drive the control screw to rotate. Then, the operator can move the movable clamping claw to expose enough space on the placement plate. Subsequently, the operator can place the corresponding number of soft-pack battery cells on the placement plate. Next, the operator can push the two clamping assemblies in sequence to stably position the busbars connected to the tabs of the soft-pack battery cells and at the same time stably place multiple soft-pack battery cells at the designed positions on the placement plate. After multiple soft-pack battery cells are clamped and positioned, the cover plate member can be placed on the tops of multiple soft-pack battery cells, and the clamping holes are clamped with the clamping heads provided at the tops of the fixed clamping claws and the movable clamping claws to further stabilize the relative positions of the fixed clamping claws and the movable clamping claws, that is, to stably clamp multiple soft-pack battery cells.

[0092] As Figure 17As shown, the bending assembly 7 has a fourth support frame 701 with a transport member 6 provided at its center and a working frame 702 provided on the fourth support frame 701. Along the transport direction of the transport member 6, a bending member 706 and a leveling assembly 708 are sequentially provided on the working frame 702, and a measuring assembly 703 for determining the position of the first clamping tray 19 transported by the transport member 6 is provided on the working frame 702. After the first clamping tray 19 transported by the transport member 6 is detected by the measuring assembly 703, the two lifting assemblies 704 will operate to stably lift the corresponding first clamping tray 19 upward. Specifically, the lifting assembly 704 includes a lifting cylinder provided in the fourth support frame 701 and a docking plate provided at the moving end of the lifting cylinder. The docking plate can be clamped with the bottom surface of the first clamping tray 19, and then stably push the corresponding first clamping tray 19 upward, so that the tabs included in the multiple battery cells clamped by the first clamping tray 19 correspond to the bending member 706 or the leveling assembly 708 to perform corresponding processing operations. The bending member 706 and the leveling assembly 708 can sequentially perform bending and leveling operations on the tabs of multiple battery cells passing through.

[0093] The transport member 6 is a structure formed by two sprockets arranged at intervals driving two corresponding chains, and can thus connect the two side edges of the bottom of the first clamping tray 19, and then stably drive the displacement of the first clamping tray 19 to improve the processing efficiency of the multiple battery cells clamped by the first clamping tray 19. As Figure 18As shown, the bending member 706 includes two symmetrically arranged bending frames provided on the working frame 702. The bending frame includes a first frame 7061 provided on the working frame 702. A space for multiple battery cells to pass through is formed between the two first frames 7061. The first frame 7061 drives a second frame 7062. A connecting frame 7063 is provided on the second frame 7062. A third bearing plate 7064 is fixedly provided at the bottom of the connecting frame 7063. A bending plate 7066 is provided on the third bearing plate 7064. The bending plate 7066 can, under the drive of the first frame 7061 and the second frame 7062, bend the tabs of the multiple battery cells lifted by the lifting assembly 704, and at the same time can also perform bending processing on the tabs of the multiple battery cells at different positions. Specifically, the second frame 7062 drives the bending plate 7066 close to the tab, and the first frame 7061 drives the second frame 7062 to make the bending plate 7066 press against the tab to bend it towards the corresponding side, that is, the tab can be bent in the required direction to adapt to the corresponding assembly formula of multiple battery cells. The formula is the specific connection method of the positive and negative electrodes of the tab. During the bending process, the roller provided at the end of the bending plate 7066 will be used to reduce the friction between the bending plate 7066 and the tab, that is, reduce the surface damage of the tab caused by the bending plate 7066, and reduce the probability of affecting the subsequent contact of the tab and causing a decrease in the power transmission quality. A limiting frame is fixedly provided on the third bearing plate 7064. The bending plate 7066 is movably connected to the limiting frame through a damping spring and a limiting column. During the process of the bending plate 7066 pushing the tab to bend, the damping spring will slow down the hard push during the process of the bending plate 7066 bending the tab, that is, reduce the probability of the tab being damaged by fracture during the hard bending process. There are two bending plates 7066 and two limiting frames, and the distance between the two bending plates 7066 is equal to the distance between the two tabs of multiple battery cells, so as to facilitate bending the two tabs of multiple battery cells at the same time, that is, improve the efficiency of bending the tabs of multiple battery cells. Two impact members 7065 are slidably engaged with the two limiting frames along the transmission direction of the transport member 6. The two impact members 7065 are driven by a bending cylinder 7067 provided on the third bearing plate 7064 to impact the tab under the drive of the bending cylinder 7067 after the bending plate 7066 bends the tab in place to reinforce the bending degree and flatness of the bent tab.

[0094] As Figure 19As shown, the leveling assembly 708 includes leveling frames symmetrically arranged on both sides of the tabs of multiple battery cells. The leveling frame includes a third frame 7081 and a fourth frame 7082 provided on the working frame 702. A space for multiple battery cells to pass through is formed between the two third frames 7081. A vertical telescopic frame 7083 is provided on the fourth frame 7082. The vertical telescopic frame 7083 is connected to a bearing block 7086 perpendicular to it. The bearing block 7086 is fitted with an auxiliary plate 7084, and a roller 7085 is provided at the end of the auxiliary plate 7084 facing the tab. Specifically, the third frame 7081 can drive the fourth frame 7082 to displace, and then can drive the vertical telescopic frame 7083, the bearing block 7086, the auxiliary plate 7084, and the roller 7085 to displace to correspond to the tabs at different positions of multiple battery cells. The fourth frame 7082 can drive the vertical telescopic frame 7083 to approach the tab position, and then can make the roller 7085 press against the bent tab through the bearing block 7086 and the auxiliary plate 7084. Next, the state of the bent tab can be further strengthened, and at the same time, the bent surface of the tab can be further made flat. The bearing block 7086 is slidably fitted with the auxiliary plate 7084, and an auxiliary spring is provided between the auxiliary plate 7084 and the end face of the movable end of the vertical telescopic frame 7083 to adapt to the situation where the displacement of the fourth frame 7082 is excessive. At the same time, it can also change the hard rolling into soft rolling and flattening to a certain extent, thereby reducing the stress concentration caused by hard pressing of the tab to a certain extent, or reducing the breakage of the tab caused by hard pressing.

[0095] As Figure 18 and Figure 19As shown, the work frame 702 is provided with a pressing assembly 707 at the corresponding bending member 706 and the flattening assembly 708, so as to cooperate with the lifting assembly 704 to press the multiple battery cells in the process of the bending member 706 and the flattening assembly 708 processing the multiple battery cell tabs, that is, the displacement of the multiple battery cells in the process of processing the multiple battery cell tabs can be reduced to ensure the bending quality of the tabs of the multiple battery cells. The pressing assembly 707 includes a pressing frame 7071 fixedly arranged on the work frame 702, the pressing frame 7071 is arranged between the two first row frames 7061 or the two third row frames 7081, a pressing cylinder 7072 is fixedly arranged at the center of the pressing frame 7071, a moving plate is fixedly arranged at the telescopic end of the pressing cylinder 7072, and the moving plate is elastically connected to the pressing plate on the side facing the multiple battery cells. After the lifting assembly 704 moves the first clamping tray 19 and multiple battery cells to a suitable height, the pressing cylinder 7072 will drive the moving plate and the pressing plate to press the multiple battery cells, and then the lifting assembly 704 can be used to stably position the multiple battery cells to ensure the relative position of the tabs during the bending process of the multiple battery cells, thereby maintaining the quality of the tab bending. Two sliding columns are symmetrically fixed on one side of the moving plate facing the pressing frame 7071, and the two sliding columns are respectively slidably matched with two sliding sleeves provided on the pressing frame 7071 to maintain the stability of the vertical movement of the moving plate, that is, to maintain the accuracy and stability of clamping and positioning multiple battery cells. The four corners of the movable plate away from the pressing frame 7071 are all slidably provided with movable columns, and the outer shell of the movable column is connected with a buffer spring. The setting of the buffer spring can reduce the vibration of the lifting assembly 704 and the pressing cylinder 7072 during the expansion and contraction process when the pressing plate presses multiple battery cells, and can also reduce the damage to the multiple battery cells caused by excessive pressure of the lifting assembly 704 and the pressing cylinder 7072. The pressing plate is fixed with a carrier connecting plate 7073 on both sides corresponding to the multiple battery cells with pole ears, and the carrier connecting plate 7073 is fixed with a detection frame 7074 on one side corresponding to the multiple pole ears of the battery cells, and the detection frame 7074 is provided with a position finder 7075 at the multiple pole ears on one side. Specifically, the position finder 7075 is divided into an infrared receiving end and an infrared transmitting end, and the infrared receiving end and the infrared transmitting end are arranged along the distribution direction of the multiple pole ears on one side. During the bending and flattening process of the tab, if it is not flat or not bent in place, the infrared emitted by the infrared emitting end of the positioner 7075 will not be received by the infrared receiving end, and then corresponding feedback can be performed to control the bending member 706 and the flattening assembly 708 to perform repeated bending and flattening operations. The flattening assembly 708 can further strengthen the bending stability of the tab after the tab is bent and transported through a section of the transport member 6. The positioner 7075 set on the corresponding flattening assembly 708 is closer to the corresponding side tab than the positioner 7075 set on the corresponding bending member 706, thereby further strengthening the stability of the bending connection of the tab.Specifically, the detection frame 7074 is U-shaped, and the concave portion of the detection frame 7074 can cover the ears of multiple corresponding battery cells on one side, so as to arrange the infrared receiving end and the infrared transmitting end along the distribution direction of multiple ears on one side for detecting multiple ears.

[0096] As Figure 20 shown, the tab welding assembly 10 has a fixing bracket 1001 that can play a supporting role. Along the length direction of the fixing bracket 1001, a feeding member 1003 and a tab welding member 1005 are sequentially arranged. Particularly importantly, a supplementary welding member 1002 and a guiding welding member 1006 are assembled above the feeding member 1003, and these two major components cooperate with the tab welding member 1005 to complete the tab welding process. The feeding member 1003 is responsible for accurately positioning the first clamping tray 19 and the soft-pack battery pack conveyed on the transport member 6 to the corresponding positions of the supplementary welding member 1002 and the guiding welding member 1006. Subsequently, through the adjustment of the feeding member 1003, the soft-pack battery pack is lifted to a specific height to ensure that its tabs are accurately aligned with the supplementary welding member 1002 and the guiding welding member 1006. In addition, this process also lifts the soft-pack battery pack to a relatively independent space to reduce the interference of external factors, thereby ensuring the accuracy and stability of the tab welding operation. When the soft-pack battery pack moves to the predetermined position, the supplementary welding member 1002 adjusts its own posture to drive the guiding welding member 1006 to be initially aligned with the tabs of the soft-pack battery pack. At the same time, the guiding welding member 1006 performs precise measurement, and the supplementary welding member 1002 adjusts according to the measurement results to ensure the precise correspondence between the guiding welding member 1006 and the tabs. Immediately afterwards, the guiding welding member 1006 cooperates with the tab welding member 1005 to weld the tabs. After the tabs on one side are welded, the feeding member 1003 turns the soft-pack battery pack and repeats the above operations to complete the tab welding on the other side. After the tabs on both sides are welded, the feeding member 1003 runs in the reverse direction to convey the welded soft-pack battery pack back to the transport member 6 for subsequent processing operations.

[0097] As Figure 21As shown in the figure, the structure of the distribution part 1003 includes a transmission rack 10039 corresponding to the transport part 6. Two transmission shafts 10031 are assembled on the transmission rack 10039. One of the transmission shafts 10031 is driven by a driving motor and can rotate forward and backward. Conveyor sprockets are installed on both of the two transmission shafts 10031 to drive the conveyor chain 10032 tensioned on the two transmission shafts 10031 to rotate in a cycle, aiming to improve the transmission efficiency and ensure the stable transmission of the soft-pack battery pack. The conveyor chain 10032 consists of two chains, and the chain links are in one-to-one correspondence and arranged in parallel. The outer sides of the chain links are clamped with the two bottoms of the protective sheet, and the protective sheet is designed in an inverted U shape, aiming to protect the surface of the soft-pack battery pack, and at the same time increase the friction of the soft-pack battery pack during the transmission process and reduce the risk of slipping on the conveyor chain 10032. The driving motor is a forward and reverse stepping motor, which has a simple structure, convenient control, and reliable operation. It can realize the forward and reverse cyclic operation of the two transmission chains, so as to realize the stable two-way transmission of the soft-pack battery pack, improve the flexibility of the equipment, and ensure the smooth progress of the production process. Two conveyor sprockets and the conveyor chain 10032 are respectively installed at both ends of the transmission shaft 10031 inside the transmission rack 10039, aiming to enhance the bearing capacity of the distribution part 1003 and ensure the stability of the soft-pack battery pack after moving to the vertical position of the work station. A push-up cylinder 10035 connected to the fixed frame 1001 is arranged between the two transmission chains, and the cylinder is driven by a cam divider 10038 arranged on the fixed frame 1001 to rotate. A lifting tray 10033 is fixedly installed at the telescopic end of the push-up cylinder 10035, and the edge of the lifting tray 10033 corresponds to a measuring instrument 10036 arranged on the fixed frame 1001, and the measuring instrument 10036 is an infrared sensor. When the infrared rays emitted by the measuring instrument 10036 are blocked by the first clamping tray 19 clamping the battery pack, the two conveyor chains 10032 will stop running, and then the push-up cylinder 10035 will push the lifting tray 10033 to drive the first clamping tray 19 and the battery pack to move up to the corresponding height position. Pressure wheels 10034 are arranged on both sides of the fixed frame 1001 corresponding to the lifting tray 10033 along the rotation direction of the conveyor chain 10032, and the pressure wheels 10034 are pushed by an auxiliary cylinder arranged on the fixed frame 1001. When the first clamping tray 19 is pushed to a suitable height and the angle is adjusted by the cam divider 10038, the two pressure wheels 10034 will clamp and position the position of the first clamping tray 19, so as to further ensure the stability of the pole ear welding part 1005 during the pole ear welding process. A limiting block 10037 driven by a limiting cylinder to perform vertical displacement is also arranged on the fixed frame 1001, and the limiting block 10037 can prevent the position change caused by the vibration of the push-up cylinder 10035 during the process of moving the first clamping tray 19 up and down or changing the angle by the push-up cylinder 10035.This move aims to reduce the possibility of position changes between the first clamping tray 19, the auxiliary welded part 1002, and the guiding welded part 1006 after the pushing cylinder 10035 changes its angle, that is, to reduce the time for the auxiliary welded part 1002 and the guiding welded part 1006 to be recalibrated with the tab, so as to ensure the efficiency of fixing the tab during welding processing. When the first clamping tray 19 needs to be input or output, the limiting cylinder can lower the limiting block 10037 to enable the first clamping tray 19 to pass through stably for input or output.

[0098] Such as Figure 22As shown, the auxiliary welding part 1002 includes an auxiliary welding frame 10021 and a longitudinal frame 10022 provided on the fixed frame 1001. A pushing cylinder 10035 is fixedly installed at the center of the auxiliary welding frame 10021. The pushing cylinder 10035 drives a pushing plate 10026. Telescopic rods 10027 are installed at the four corners of the pushing plate 10026. The telescopic ends of the four telescopic rods 10027 are fixedly connected to a pressing plate 10029. A shock-absorbing spring 10028 is arranged around the telescopic rod 10027 between the pressing plate 10029 and the pushing plate 10026. After the pushing cylinder 10035 pushes the soft-pack battery pack to an appropriate height, the auxiliary fixing cylinder 10025 will drive the pressing plate 10029 and the pushing plate 10026 to press the top of the battery pack after the angle adjustment of the soft-pack battery pack is completed, so as to further stabilize the position of the soft-pack battery pack, that is, to maintain the position stability of the tab during the processing. During the process of the pressing plate 10029 pressing the soft-pack battery pack, the shock-absorbing spring 10028 will slow down the vibration generated when the auxiliary fixing cylinder 10025 extends and presses the soft-pack battery pack, thereby reducing the position change of the soft-pack battery pack caused by the vibration. The longitudinal frame 10022 drives the transverse frame 10023 to move longitudinally, and the transverse frame 10023 drives the guiding welding part 1006 to move transversely to adjust the position of the guiding welding part 1006 to correspond to the tab. The guiding welding part 1006 includes a guiding welding frame 10061 driven by the transverse frame 10023 to move transversely. An adjustment platform 10062 is provided at the bottom of the guiding welding frame 10061. Four calibration instruments 10063 are installed on the adjustment platform 10062. These four calibration instruments 10063 are inclinedly distributed so that their laser lines can cross each other through the small openings of two tab welding nozzles 10065 provided on the guiding welding frame 10061 to correspond to the four vertices of the tabs of the soft-pack battery pack, that is, to assist in determining the welding position of the tabs of the soft-pack battery pack. After the laser is reflected at the four vertices of the tabs of the soft-pack battery pack, it crosses the welding ports of the tab welding nozzles 10065 again and is detected by the calibration instruments 10063. This process not only realizes the accurate measurement and verification of the tab position, but also improves the reliability and stability of the measurement. During the detection process, the corresponding electronic control system will be used to control the operation of the longitudinal frame 10022 and the transverse frame 10023 to ensure the accurate correspondence between the tabs of the soft-pack battery pack and the tab welding nozzles 10065. After the position detection is completed, the adjustment platform 10062 will drive the corresponding calibration instruments 10063 to give way so that the tab welding nozzles 10065 can cooperate with the tab welding parts 1005 for tab welding. The feeding part 1003, the guiding welding part 1006, the longitudinal frame 10022, the transverse frame 10023 and the auxiliary fixing frame 10024 installed on the auxiliary welding frame 10021 are all configured with two and are arranged in sequence along the width direction of the fixed frame 1001, thereby improving the efficiency of tab welding.The fourth carrier 10051 installed on the fixed frame 1001 is equipped with a variable pitch traveling frame 10052. The variable pitch traveling frame 10052 drives the auxiliary traveling frame 10053 to approach the tab welding nozzle 10065. On the auxiliary traveling frame 10053, a driving positioning frame 10054 is displaced along the width direction of the fixed frame 1001. A laser welding part 10055 and an infrared sensor aligned with the tab welding nozzle 10065 are fixedly installed at the end of the positioning frame 10054 facing the tab welding nozzle 10065. When the laser emitted by the infrared sensor passes through the side wall of the tab welding nozzle 10065, it indicates that the preliminary movement is in place. After the laser emitted by the infrared sensor passes through the hollow structure of the tab welding nozzle 10065 again, the parameter position of the laser welding part 10055 can be stably corresponded to the tab welding nozzle 10065. Then, the welding laser emitted by the laser welding part 10055 can pass through the tab welding nozzle 10065 to weld the tab. The control adjustment after parameter calibration can also be carried out through the numerical control system. The specific equipment model and working principle of how to correspond the laser welding part 10055 to the tab welding nozzle 10065 should be understood as the prior art. During the welding process, the pipeline connected to the tab welding nozzle 10065 will spray out the protective gas and absorb the harmful gas after welding, so as to ensure the welding quality of the tab. In addition, the setting of the auxiliary traveling frame 10053 enables the two tab welding nozzles 10065 to take turns to carry out the welding operation, further improving the efficiency of welding the tabs. One of the two tab welding nozzles 10065 is connected to the welding guide frame 10061 through the adjusting component 10064, and the other is fixedly installed on the welding guide frame 10061, so as to facilitate the operator to adjust the distance between the two tab welding nozzles 10065 to adapt to the tab bending surfaces of different sizes for use. The adjusting component 10064 includes an auxiliary motor installed on the welding guide frame 10061. The auxiliary motor drives an adjusting screw rod rotatably installed on the welding guide frame 10061. The auxiliary motor is a stepper motor that can rotate forward and backward. When the auxiliary motor rotates forward and backward, the adjusting screw rod can cooperate with the threaded block connected to the tab welding nozzle 10065 to drive the tab welding nozzle 10065 slidingly engaged with the welding guide frame 10061 to displace, so as to adjust the distance between the two tab welding nozzles 10065.

[0099] Such as Figure 20As shown in the figure, a fire prevention component 1004 is provided at a position on the fixing frame 1001 corresponding to the laser welding part 10055. The fire prevention component 1004 includes a monitoring part 10043 provided on the auxiliary fixing frame 10024 and a guiding frame 10041 provided on the transmission frame 10039 facing the laser welding part 10055. The monitoring part 10043 is an image monitoring device or a smoke alarm device. When a fire occurs during the welding process of the soft-pack battery pack, the monitoring part 10043 will send a signal to control the reverse rotation of the conveying chain 10032, so as to convey the burning soft-pack battery pack onto the guiding frame 10041. Subsequently, the guiding frame 10041 will guide the soft-pack battery pack into the fire extinguishing box 10042, and the water or flame retardant foam provided in the fire extinguishing box 10042 will extinguish the soft-pack battery pack. It is particularly worth noting that a plurality of balls can be provided on the inclined surface of the guiding frame 10041 to reduce the friction between the soft-pack battery pack and the inclined surface of the guiding frame 10041, so as to increase the speed at which the soft-pack battery pack is sent into the fire extinguishing box 10042 after passing through the guiding frame 10041, that is, to shorten the time when the soft-pack battery pack poses a threat to the outside of the equipment.

[0100] As Figure 23 and Figure 24 shown in the figure, the measuring component 11 includes a machine frame 1101 for carrying and transporting the component 6. A first detection mechanism 1102 and a second detection mechanism are sequentially arranged along the transmission direction of the soft-pack battery pack. In this embodiment, a first detection station and a second detection station are sequentially arranged along the transmission direction of the transport component 6; the first detection mechanism 1102 is used for post-welding detection of the tabs of the soft-pack battery pack, and the second detection mechanism is used for differential pressure detection and DCIR detection of the soft-pack battery pack. As Figure 23 shown in the figure, the processed soft-pack battery pack enters the measuring component 11 from front to back, and the transport component 6 drives the soft-pack battery pack to pass through the first detection station and the second detection station in sequence, so that the first detection mechanism 1102 performs post-welding detection of the tabs, and the second detection mechanism performs differential pressure detection and DCIR detection, improving the consistency and reliability of the soft-pack battery pack products.

[0101] In this embodiment, during the processing of the soft-pack battery pack, multiple battery packs need to be placed orderly together and reliably clamped by the first clamping tray 19, and then the ear tabs are welded. At the same time, the ear tabs of the battery packs are connected to the bus bar so that the multiple battery packs form two electrodes of the soft-pack battery pack, namely the positive electrode and the negative electrode. The first detection mechanism 1102 includes two image acquisition machines 11021 symmetrically arranged on the frame 1101 and used for acquiring the images of the ear tabs of the soft-pack battery pack, and the acquired images are transmitted to the control unit. The control unit identifies the received images, and an acquisition area is formed between the two image acquisition machines 11021. A fifth support frame 11023 is fixedly connected to the frame 1101. The fifth support frame 11023 includes two vertical support rods located on both sides of the first detection station and a horizontal support rod. The two ends of the horizontal support rod are connected to the ends of the two vertical support rods by bolts. A camera plate 11022 for installing the image acquisition machine 11021 is arranged on the fifth support frame 11023. A first slide rail is fixedly connected to the fifth support frame 11023. A first slider is fixed on the camera plate 11022. The first slider slides along the first slide rail and can be fixed, and the extending direction of the first slide rail is parallel to the sliding direction of the soft-pack battery pack. In this embodiment, both the connection mode of the first slide rail and the fifth support frame 11023 and the connection mode of the first slider and the camera plate 11022 are bolt connections. The settings of the first slide rail and the first slider can adjust the position of the image acquisition machine 11021 to adapt to different soft-pack battery packs, improving the applicable range of the present invention.

[0102] Mounting brackets are arranged at both ends of the camera plate 11022. The mounting brackets can slide along the direction perpendicular to the sliding direction of the soft-pack battery pack and can be fixed. The connection mode between the mounting brackets and the camera plate 11022 is bolt connection; the image acquisition machine 11021 is fixedly arranged on the mounting brackets, and the connection mode between the image acquisition machine 11021 and the mounting brackets is bolt connection to adapt to different sizes of soft-pack battery packs, improving the applicable range of the present invention.

[0103] During the actual detection process, due to the illumination of the lights in the workshop and the influence of the environment, there is a deviation between the image collected by the image acquisition machine 11021 and the actual image. Therefore, a shadowless plate 1103 is provided on one side of the image acquisition machine 11021 close to another image acquisition machine 11021. The top end of the shadowless plate 1103 is fixedly connected to the camera plate 11022. Correspondingly, a plurality of fixing holes are provided on the camera plate 11022 and distributed along its length direction. The shadowless plate 1103 and the fixing holes are connected by bolts. According to the required position of the shadowless plate 1103, the fixing holes at different positions are corresponded to realize the function of adjusting the position of the shadowless plate 1103, improving the applicable range of the present invention and at the same time improving the quality of the image of the tab collected by the image acquisition machine 11021. A glass area for the image acquisition machine 11021 to collect the tab image is provided on the shadowless plate 1103. Specifically, a square hole is provided on the shadowless plate 1103, and a glass sheet is fixed in the square hole to form the glass area; a light source distributed around the glass area is provided on the side of the shadowless plate 1103 facing away from the image acquisition machine 11021 to improve the quality of the tab image collected by the image acquisition machine 11021.

[0104] In this embodiment, a fifth cylinder for lifting the soft-pack battery pack and entering the collection area is provided below the collection area. The lower surface of the guide rail is fixedly connected with a third mounting plate, and the connection mode between the third mounting plate and the guide rail is bolt connection. The fifth cylinder is fixed on the third mounting plate. A first lifting plate parallel to it is provided above the third mounting plate. A plurality of first sleeves are fixedly connected to the third mounting plate. In this embodiment, the number of the first sleeves is [number] and they are evenly distributed on the third mounting plate. A plurality of first guide rods corresponding to the first sleeves one by one are fixedly provided on the first lifting plate. The top end of the guide rod is fixedly connected to the first lifting plate, and the bottom end of the guide rod passes through the first sleeve and extends below the third mounting plate. When the bottom plate enters the first detection station, the piston of the fifth cylinder pushes the first lifting plate to move upward, and the first lifting plate pushes the bottom plate to move upward, so that the soft-pack battery pack enters the collection area. The image acquisition machine 11021 collects images of the tabs on both sides of the soft-pack battery pack and transmits them to the control unit for identification and detection.

[0105] In this embodiment, a first limiting plate is fixedly connected to the end of the first guide rod extending below the third mounting plate to limit the extreme displacement of the soft-pack battery pack in the vertical direction.

[0106] The second detection mechanism includes a differential pressure detection component 1105 for detecting the differential pressure of the soft-pack battery pack and a DCIR detection component 1106 for detecting the DCIR of the soft-pack battery pack. A supporting fixed plate 1104 is fixedly connected to the frame 1101, and both the differential pressure detection component 1105 and the DCIR detection component 1106 are arranged on the supporting fixed plate 1104. It should be noted that in the present invention, the DCIR detection and the differential pressure detection of the soft-pack battery pack are carried out simultaneously. The differential pressure detection component 1105 and the DCIR detection component 1106 are both commercially available products and will not be elaborated here.

[0107] The differential pressure detection component 1105 includes two groups of relatively arranged differential pressure detection units. The differential pressure detection unit includes a plurality of detection rods 11051 corresponding to one side of the tabs in the soft-pack battery pack, and one end of the detection rod 11051 can be in contact with the corresponding tab. The other end of the detection rod 11051 is electrically connected to the corresponding differential pressure detection device. When the end of the detection rod 11051 contacts the corresponding tab, the differential pressure detection device detects the voltage of each battery pack. The detection rods 11051 of each differential pressure detection unit are divided into upper and lower groups, and the detection rods 11051 within each group are distributed at intervals along the extending direction of the guide rail to ensure that each tab is contacted by a detection rod 11051. The differential pressure detection unit further includes a first sliding plate 11053 slidably arranged on the supporting fixed plate 1104, and the first sliding plate 11053 is driven by a multi-purpose air cylinder 11052. The detection rods 11051 of this differential pressure detection unit are all fixedly installed on the first sliding plate 11053; specifically, the first sliding plate 11053 of the right differential pressure detection unit is fixed at the upper-middle position of the supporting fixed plate 1104. The multi-purpose air cylinder 11052 of this differential pressure detection unit is installed on the first fixing plate through bolts. The first sliding plate 11053 is fixedly connected to the piston extending end of the multi-purpose air cylinder 11052, that is, the first sliding plate 11053 is a vertical plate. A connecting plate is fixedly connected to the bottom of the first sliding plate 11053, and a plurality of connecting rods distributed along the extending direction of the guide rail are fixedly connected to the connecting plate. The detection rods 11051 are fixed on the connecting rods, and there are two detection rods 11051 on one connecting rod. When the right differential pressure detection unit contacts the tabs on the right side of the soft-pack battery pack, the multi-purpose air cylinder 11052 drives the first sliding plate 11053 to slide towards the soft-pack battery pack, and then drives the detection rods 11051 to slide towards the soft-pack battery pack until the detection rods 11051 contact the corresponding tabs. The differential pressure detection device measures the voltage of each battery pack; after the detection is completed, the multi-purpose air cylinder 11052 drives the first sliding plate 11053 to slide away from the soft-pack battery pack, and then drives the detection rods 11051 to separate from the corresponding tabs, and the detected soft-pack battery pack enters the next processing procedure.

[0108] The specific structure of the left differential pressure detection unit is as follows: The first fixing plate of the left differential pressure detection unit is fixed to the top of the support fixing plate 1104. A sliding seat, which is drivingly connected to the multi-purpose air cylinder 11052, is slidably arranged on the first fixing plate. The first sliding plate 11053 is slidably connected to the sliding seat and is driven by the sixth air cylinder to move up and down. A connecting plate is fixedly connected to the bottom of the first sliding plate 11053. A plurality of connecting rods distributed along the extending direction of the guide rail are fixedly connected to the other connecting plate. The detection rod 11051 is fixed to the connecting rod, and there are two detection rods 11051 on one connecting rod. When the left differential pressure detection unit contacts the left ear of the soft-pack battery pack, the sixth air cylinder drives the second sliding plate to slide down to the required position. At the same time, the multi-purpose air cylinder 11052 drives the sliding seat to slide towards the soft-pack battery pack, thereby driving the second sliding plate to slide towards the soft-pack battery pack until the detection rod 11051 contacts the corresponding ear on the left side of the soft-pack battery pack. After both detection rods 11051 on both sides contact the corresponding ears on both sides of the soft-pack battery pack, detection is performed. After the detection is completed, the multi-purpose air cylinder 11052 drives the sliding seat to slide away from the soft-pack battery pack, separating the detection rod 11051 from the corresponding ear.

[0109] The DCIR detection component 1106 includes two groups of DCIR detection components 1106 corresponding to the two electrodes, namely the positive electrode and the negative electrode, of the soft-pack battery pack. The DCIR detection component 1106 includes a detection head for connecting to the positive or negative electrode of the soft-pack battery pack. The two detection heads are electrically connected to the DCIR detection device. After the detection head contacts the corresponding electrode, the DCIR detection device performs DCIR detection on the soft-pack battery pack. The DCIR detection component 1106 further includes a second fixing plate 11061 for installing the detection head. The second fixing plate 11061 can be driven to move up and down by the measuring air cylinder 11604. When the detection head moves up and down with the second fixing plate 11061, it can be connected to or separated from the positive or negative electrode of the soft-pack battery pack. A third fixing plate is fixedly connected in parallel below the second fixing plate 11061. The detection head is fixed to the third fixing plate, and the top end of the detection head is located between the third fixing plate and the second fixing plate 11061 for electrical connection to the transmission line. The bottom end of the detection head passes through the second fixing plate 11061 and is located below it for contact with the electrode of the soft-pack battery pack.

[0110] To prevent the detection head from damaging the electrodes of the soft-pack battery pack, an auxiliary connecting plate 11062 fixedly connected to the piston of the measuring cylinder 11604 is provided above the second fixing plate 11061, and a plurality of measuring springs 11603 are arranged between the auxiliary connecting plate 11062 and the second fixing plate 11061. One end of the measuring spring 11603 is fixedly connected to the auxiliary connecting plate 11062, and the other end of the measuring spring 11603 is connected to the second fixing plate 11061. Specifically, two slide bars 14013 perpendicular to the second fixing plate 11061 are fixedly connected to both ends of the second fixing plate 11061. Slide holes are formed in the auxiliary connecting plate 11062. The top ends of the slide bars 14013 extend into the slide holes and the slide bars 14013 can slide along the slide holes. The measuring spring 11603 is sleeved on the part of the slide bar 14013 located between the second fixing plate 11061 and the auxiliary connecting plate 11062. After the soft-pack battery pack is in the detection position, the measuring cylinder 11604 drives the auxiliary connecting plate 11062 to move downward, thereby driving the second fixing plate 11061 and the detection head to move downward; when the bottom end of the detection head contacts the electrodes of the soft-pack battery pack, the measuring cylinder 11604 continues to move downward. At this time, the measuring spring 11603 is compressed, and the restoring elastic force of the measuring spring 11603 will push the detection head to be in close contact with the electrodes of the soft-pack battery pack, improving the detection accuracy. At the same time, it avoids the situation that the detection head cannot be detected due to improper movement and the electrodes are damaged due to excessive movement.

[0111] In this embodiment, a supporting plate is fixedly connected to the first sliding plate 11053. When the first sliding plate 11053 moves to the position where the detection rod 11051 contacts the corresponding ear, the supporting plate is located below the electrodes of the soft-pack battery pack and contacts the lower surface of the electrodes, playing a role in supporting the electrodes and preventing the detection head from applying excessive pressure on the electrodes, thus protecting the electrodes.

[0112] A driving cylinder installed on the frame 1101 is provided between two DCIR detection components 1106, and a top plate is arranged above the driving cylinder. In this embodiment, a fourth mounting plate is fixedly connected below the guide rail of the frame 1101, and the driving cylinder is fixedly installed on the fourth mounting plate; the top plate is located above the fourth mounting plate and perpendicular to the piston axis of the driving cylinder. A second sleeve is fixedly connected to the fourth fixing plate, and a second guide rod is slidably arranged in the second sleeve. The top end of the second guide rod extends out of the second sleeve and is fixedly connected to the top plate. The driving cylinder pushes the top plate upward, thereby driving the soft-pack battery pack located above it upward. In this embodiment, the bottom end of the second guide rod passes through the second sleeve and extends out and is fixedly connected with a limiting plate for limiting the extreme displacement of the soft-pack battery pack. After the soft-pack battery pack moves to the second detection station, the driving cylinder pushes the top plate upward, thereby driving the soft-pack battery pack to rise to the detection position. The differential pressure detection component 1105 and the DCIR detection component 1106 detect the soft-pack battery pack. After the detection is completed, the piston of the driving cylinder retracts, and the soft-pack battery pack drops to the initial position and is transported to the next processing station for processing through the transport component 6.

[0113] During the differential pressure detection and DCIR detection of the soft-pack battery pack, sparks are likely to be generated at the contact part between the detection rod 11051 and the tab. Therefore, several push-off cylinders for pushing the soft-pack battery pack away from the top plate are arranged on the top plate, and several rollers are rotatably arranged on the top plate. The axis of the roller is parallel to the extending direction of the guide rail. In this embodiment, the number of push-off cylinders is two. A water tank is arranged on one side of the frame 1101, and a measuring cylinder 11604 for pushing the soft-pack battery pack away from the top plate into the water tank is arranged on the other side of the frame 1101. When a spark appears in the soft-pack battery pack, the measuring cylinder 11604 drives the detection head upward, so that the multi-purpose cylinder 11052 located on the left side of the soft-pack battery pack drives the first slide plate 11053 to give way to the soft-pack battery pack. At the same time, the sixth cylinder drives the second slide plate upward to avoid the soft-pack battery pack, enabling it to smoothly enter the water tank; then, the push-off cylinder jacks up the soft-pack battery pack, and the multi-purpose cylinder 11052 located on the right side of the soft-pack battery pack pushes the soft-pack battery pack into the water tank, improving the safety of the detection equipment.

[0114] In the present invention, a positioning scanner is provided in front of the first detection station, and a scan code is provided on the bottom plate for positioning the soft-pack battery pack on the guide rail. At the same time, a positioning assembly 1107 is arranged on the guide rail along its extending direction. The positioning assembly 1107 includes a positioning cylinder fixedly installed on the guide rail. A fixed seat is fixedly connected below the guide rail, the positioning cylinder is fixedly installed on the fixed seat, the top end of the piston of the positioning cylinder is fixedly connected with a base, a first swing wheel 11071 and a second swing wheel 11073 are rotatably arranged on the base, and a vertical plate 11072 is arranged on the first swing wheel 11071. The vertical plate 11072 is fixedly connected with the outer side wall of the first swing wheel 11071. A horizontal plate 11074 is arranged on the second swing wheel 11073. The horizontal plate 11074 is fixedly connected with the outer side wall of the second swing wheel 11073. A receiving groove for receiving the vertical plate 11072 is formed on the bottom plate. When the soft-pack battery pack is being transported, the positioning assembly 1107 is located below the bottom plate to ensure the smooth passage of the soft-pack battery pack. When the positioning scanner scans that the bottom plate enters the first detection station, the transporter 6 stops working, and the positioning cylinder pushes the base upward. The vertical plate 11072 enters the receiving groove, and the horizontal plate 11074 contacts the lower surface of the bottom plate. At this time, the driving cylinder and the fifth cylinder lift the corresponding soft-pack battery pack into the detection position. In the present invention, when the bottom plate is misaligned due to inertia, during the upward movement of the base, the vertical plate 11072 will deflect and enter the receiving groove. And as the vertical plate 11072 enters the receiving groove, the first swing wheel 11071 will push the bottom plate to correct its position, thereby ensuring the accuracy of the detection.

[0115] As Figure 1 and Figure 3 shown, in order to improve the welding quality of the tab, a sampling inspection station 12 corresponding to the transmission assembly is provided between the upper shell assembly 13 and the measuring assembly 11 to sample inspect the battery pack after tab welding or install parts.

[0116] As Figure 25As shown, the upper shell assembly 13 includes an upper shell base 1301 for carrying the transport member 6. The upper shell base 1301 is correspondingly provided with a first opening and closing assembly 1302 and a second opening and closing assembly 1305. The first opening and closing assembly 1302 and the second opening and closing assembly 1305 are respectively used to open the first clamping tray 19 and the second clamping tray 20. The first clamping tray 19 and the second clamping tray 20 are a hard clamping structure and an elastic clamping structure respectively. A recycling station 1304 is provided at the position corresponding to the first opening and closing assembly 1302 on the upper shell base 1301 to facilitate the operator to collect and reuse the unused first clamping tray 19. A loading member 1306 is provided at the position corresponding to the second opening and closing assembly 1305 on the upper shell base 1301 to place the bottom of the outer shell into the second clamping tray 20, and a tray changing member 1303 is provided to grab the battery pack after tab welding in the first clamping tray 19 and place it into the second clamping tray 20. The tray changing member 1303 includes a tray changing gantry 13032 provided on the upper shell base 1301 to cooperate with the corresponding first clamping claw 13031 to clamp and stack and grab the battery pack after tab welding, and transport it to the second clamping tray 20 with the bottom of the outer shell at the position corresponding to the second opening and closing assembly 1305 of the transport member 6. Subsequently, the top of the outer shell can be placed on the top of the stacked battery pack to be docked with the bottom of the outer shell through another loading member 1306. Thus, the loading operation of the battery pack outer shell is completed.

[0117] As Figure 26 shown, the tray changing gantry 13032 includes a main gantry 130321 fixedly provided on the upper shell base 1301 and arranged along the transmission direction of the transport member 6. The main gantry 130321 drives an auxiliary gantry 130322 perpendicular to it, and the auxiliary gantry 130322 can drive a vertical gantry 130323 to drive the first clamping claw 13031 to stably displace to transport the stacked battery pack from the section of the transport member 6 transporting to the first clamping tray 19 to the section transporting to the second clamping tray 20. As Figure 27As shown in the figure, the loading part 1306 includes a loading base 13061 corresponding to the upper shell base 1301. Three gantry bases 13062 are evenly arranged on the loading base 13061. Shell-gripping gantries 13063 are arranged on the three gantry bases 13062 respectively. Claw shell cylinders 13064, glue application heads 13066 and shell-gripping cylinders 13068 are respectively driven on the three shell-gripping gantries 13063. And a confirmation head 13067 for detecting the glue application quality of the glue application head 13066 is arranged on the shell-gripping gantry 13063 between the glue application head 13066 and the shell-gripping cylinder 13068. The confirmation head 13067 can take images and be processed at the control unit for transmission to judge whether the glue application is qualified. The claw shell cylinder 13064 can be driven by the corresponding shell-gripping gantry 13063 to correspond to the shell storage rack 13065 arranged on the upper shell base 1301. Specifically, the shell storage rack 13065 is composed of limiting strips arranged corresponding to the four corners of the bottom of the outer shell, to pick up the bottom of the outer shell placed in the upper shell rack and place it on the carrier, and to transmit the grabbed outer shell to the glue application head 13066, so that the glue application head 13066 can apply glue to the bottom of the outer shell under the drive of the corresponding shell-gripping gantry 13063. Finally, the carrier can transmit the bottom of the outer shell coated with glue to the shell-gripping cylinder 13068, so that the shell-gripping cylinder 13068 places the bottom of the outer shell into the opened second clamping tray 20, and the glue can stably connect the stacked battery packs transported by the first clamping claws 13031 with the bottom of the outer shell. The carrier is a conveyor belt rotatably arranged on the upper shell base 1301, and concave racks for positioning the bottom of the outer shell are arranged on the surface of the conveyor belt, and the conveyor belt is driven by a motor arranged on the upper shell base 1301 to transport the bottom of the outer shell for corresponding transfer and placement. The shell-gripping gantry 13063 includes a first upper shell gantry 130631 arranged on the gantry base 13062 along the transmission direction of the carrier. The first upper shell gantry 130631 drives a second upper shell gantry 130632 perpendicular to it. The second upper shell gantry 130632 can drive the third upper shell gantry 130633 connected to it, to achieve displacements in three directions for multi-degree-of-freedom processing operations.

[0118] After the outer shell is covered on the stacked battery packs, the connection between the outer shell and the battery packs only depends on glue connection. Therefore, the stacked battery packs cannot be protected. So it is necessary to weld the butt edges of the outer shell to make the outer shell wrap all the battery packs and form a solid protective barrier. A first welding assembly 14, a flipping assembly 15 and a second welding assembly 16 are sequentially arranged along the direction of transporting the soft-pack battery packs by the transport part 6.

[0119] The first welding assembly 14 is used for welding the joints between the top side plates and the top plate of the outer shell and the joints between the side plates and the bent parts, that is, welding the three short sides at the top of the outer shell, as Figure 28As shown, the first welding assembly 14 includes two relatively arranged first lasers 14010 and two welding robot arms for driving the corresponding first lasers 14010 to move. The two welding robot arms are located on both sides of the first welding bed 1401. One welding robot arm is connected to one first laser 14010. It should be noted that the welding robot arm is a commercially available product and is not shown in the figure. The models of the welding robot arm are FANUC M-iD, FANUC M-iD / , etc.; only one first laser 14010 is shown in the figure. In this embodiment, the first laser 14010 and the welding robot arm are fixedly connected through the first mounting base 1406. A flange 14012 for connecting with the welding robot arm is fixedly connected to the first mounting base 1406. The first laser is fixedly installed on the first mounting base 1406. In this embodiment, a positioning image machine 1407 for photographing the soft-pack battery pack is fixedly arranged on the first mounting base 1406. When the soft-pack battery pack moves to the working station of the first welding assembly 14, the positioning image machine 1407 collects the image of the soft-pack battery pack, and determines the initial welding position and the travel of the first laser 14010 through image recognition.

[0120] The first welding assembly 14 includes a first welding bed 1401 for the carrier transport member 6 to transport the second clamping tray 20. Two relatively arranged welding frames 1402 are provided on the first welding bed 1401. The two welding frames 1402 are arranged on both sides of the transport member 6. A seventh cylinder 1403 is provided on the welding frame 1402. The seventh cylinder 1403 is used to drive the first sliding seat 1404 slidably arranged on the welding frame 1402. Side welding nozzles 1405 are provided on the first sliding seat 1404 along the transport direction of the transport member 6, and a top-side welding nozzle 14014 is provided on the top of the first sliding seat 1404.

[0121] Specifically, two mutually parallel first slide rails are fixedly connected to the top of the welding frame 1402. Two first sliders capable of sliding along the first slide rails are fixedly connected to the first sliding seat 1404. The first sliders correspond to the first slide rails one by one. Specifically, the two side welding nozzles 1405 and the top-side welding nozzle 14014 provided on the first sliding seat 1404 are both driven by a supporting cylinder 1408 to displace, so as to weld the connection part between the outer shell side plate and the bent part. The two side welding nozzles 1405 and the top-side welding nozzle 14014 are both communicated with a first exhaust pipe provided on the welding frame 1402 for exhausting gas.

[0122] During the welding process of the soft-pack battery pack shell, in order to reduce the gap between the side panel of the shell and the top plate and the bending part, a fixed pressure plate 1409 that can contact the side panel of the shell is slidably arranged on the machine tool. During welding, the fixed pressure plate 1409 presses the side panel onto the battery pack to facilitate welding at the connection. A protective pad is fixedly connected to the side where the fixed pressure plate 1409 contacts the side panel of the shell to protect the side panel of the shell. The side of the fixed pressure plate 1409 facing away from the side plate is vertically fixedly connected with a sliding rod 14013, and the sliding rod 14013 is slidably connected to the machine tool. The connection method between the two is the existing technology and will not be repeated here; a push plate 14011 is fixedly connected to the first sliding seat 1404, and the number of push plates 14011 is two. The connection method between the push plate 14011 and the first sliding seat 1404 is a bolt connection. During the sliding process of the first sliding seat 1404, the fixed pressure plate 1409 can be pushed to contact the side plate. When the first welding assembly 14 welds the soft-pack battery pack, the first sliding seat 1404 slides toward the direction of the soft-pack battery pack, and the push plate 14011 contacts the surface of the fixed pressure plate 1409 facing away from the soft-pack battery pack. As the first sliding seat 1404 continues to slide, the push plate 14011 pushes the fixed pressure plate 1409 toward the soft-pack battery pack until the push plate 14011 presses the fixed pressure plate 1409 against the side plate of the shell.

[0123] The welding process of the first welding assembly 14 is as follows: the transport part 6 pauses after transferring the soft-pack battery pack to the position of the first welding assembly 14, and the seventh cylinder 1403 drives the first sliding seat 1404 to slide toward the soft-pack battery pack. At this time, the push plate 14011 pushes the fixed pressure plate 1409 to slide toward the soft-pack battery pack, and then the fixed pressure plate 1409 presses the side plate of the shell to the end of the battery pack; then the supporting cylinder 1408 pushes the corresponding side welding nozzle 1405 and the top welding nozzle 14014 to move toward the soft-pack battery pack Next, the welding robot arm will drive the first mounting seat 1406 to move, and during the displacement process, the positioning image machine 1407 will collect the image of the soft-pack battery pack and transmit it to the control unit. The control unit will recognize the image and confirm the initial position of the welding, and control the welding robot arm to drive the first laser 14010 to weld the three short sides in sequence; after the welding is completed, the seventh cylinder 1403 will drive the top edge welding nozzle 14014 and the side edge welding nozzle 1405 to reset, and the transport part 6 will drive the soft-pack battery pack into the flip assembly 15.

[0124] like Figure 29 and Figure 30As shown, the flipping assembly 15 includes a flipping base 1501 for carrying the transport member 6. On the flipping base 1501, there are two oppositely arranged and openable / closable flipping jaws 1507 and a flipping motor 1506 for driving the rotation of the jaws. A clamping area for clamping the soft-pack battery pack is formed between the two flipping jaws 1507, and the flipping motor 1506 corresponds to the flipping jaws 1507 one by one. Specifically, the flipping assembly 15 further includes a mounting frame 1502 fixedly connected to the flipping base 1501. The mounting frame 1502 includes two parallel vertical rods and a horizontal rod. The two vertical rods are located on both sides of the transport member 6 and their bottom ends are fixedly connected to the flipping base 1501. The connection manner between the vertical rod and the flipping base 1501 is bolt connection; the horizontal rod is fixedly connected to the top ends of the two vertical rods, and their connection manner is bolt connection. A flipping slide plate 1505 is provided on the mounting frame 1502. The flipping slide plate 1505 is a rectangular plate-like structure and is horizontally arranged, and the flipping slide plate 1505 is driven by a folding cylinder 1504 to slide up and down along the mounting frame 1502. The piston of the folding cylinder 1504 is fixedly connected to the flipping slide plate 1505; specifically, a mounting plate is fixedly connected to the mounting frame 1502, and the connection manner between the mounting plate and the horizontal rod is bolt connection. The folding cylinder 1504 is fixedly installed on the mounting plate. Two second slide rails are fixedly provided on the mounting plate, and the second slide rails are vertically arranged; a second connecting plate is fixedly connected to the side of the flipping slide plate 1505 close to the mounting frame 1502, and two second sliders corresponding to the second slide rails one by one are fixedly provided on the second connecting plate, and the second sliders can slide along the second slide rails.

[0125] Both ends of the flipping skateboard 1505 are slidably connected to the movable gripper plates 1503 located below it. The movable gripper plates 1503 can slide horizontally perpendicular to the conveying direction of the soft-pack battery pack. The flipping jaws 1507 are rotatably arranged on the corresponding movable gripper plates 1503, that is, the number of movable gripper plates 1503 is two and they correspond to the flipping jaws 1507 one by one. A power cylinder for driving the two movable gripper plates 1503 to move relative to or away from each other is arranged between the two movable gripper plates 1503, and the power cylinder is fixedly installed at the central position of the flipping skateboard 1505. In this embodiment, taking one of the movable gripper plates 1503 as an example, the movable gripper plate 1503 includes a horizontally arranged first part and a vertically arranged second part. The first part and the second part are fixedly connected, and the connection method between the two is bolt connection. The first part is used to be connected to the flipping skateboard 1505, and the second part is used to be connected to the flipping jaws 1507. In order to improve the stability of the movable gripper plate 1503, a reinforcing plate is fixedly arranged between the first part and the second part. Among them, the setting method of the first part and the flipping skateboard 1505 is that the first part is fixedly connected with a third slider, and a third slide rail corresponding to the third slider is fixedly connected to the lower surface of the flipping skateboard 1505. The piston end of the measuring cylinder 11604 is fixedly connected to the first part and can drive the third slider to reciprocate along the third slide rail. The setting method of the second part and the flipping jaws 1507 is as follows: First, the flipping jaws 1507 include a circular plate and a plurality of clamping blocks arranged on the circular plate. In this embodiment, the number of clamping blocks is [number] and they are evenly distributed along the circumference of the circular plate. The connection method between the clamping blocks and the circular plate is bolt connection. The circular plate is rotatably connected to the second part through a rotating shaft. A flipping motor 1506 for driving the flipping jaws 1507 to rotate is arranged on the second part. The driving shaft of the flipping motor 1506 is fixedly connected with a driving pulley, and the rotating shaft is coaxially fixedly connected with a driven pulley. The driving pulley and the driven pulley are driven by a belt.

[0126] In this embodiment, in order to limit the extreme displacement of the horizontal sliding of the movable gripper plate 1503, the first part is fixedly connected with a limiting plate, and a limiting hole corresponding to the limiting plate is opened on the flipping skateboard 1505. The top end of the limiting plate passes through the limiting hole and extends above the flipping skateboard 1505, and a limiting plate fixedly connected to the flipping skateboard 1505 is arranged at the opening of the limiting hole. The connection method between the limiting plate and the flipping skateboard 1505 is bolt connection.

[0127] The second clamping tray 20 includes a second clamping bottom plate with rollers at all four corners. Oppositely arranged fixed clamping plates and movable clamping plates are provided on the second clamping bottom plate. The bottom of the movable clamping plate is slidably matched with the second clamping bottom plate, and a clamping push block connected to the second clamping bottom plate is arranged on the side of the movable clamping plate facing away from the fixed clamping plate. A clamping measuring spring 11603 is arranged between the clamping push block and the movable clamping plate to drive the movable clamping plate to approach the fixed clamping plate to clamp and position the stacked battery packs.

[0128] The second opening and closing assembly 1305 provided on the flipping base 1501 includes a hook plate capable of opening the second clamping tray 20. Specifically, a second opening and closing frame is fixedly connected to the flipping base 1501, and an opening and closing movable plate 13051 is slidably arranged on the second opening and closing frame. The opening and closing movable plate 13051 is driven by an opening and closing air cylinder 13053 installed on the second opening and closing frame. The number of the opening and closing air cylinders 13053 is two and they are located on both sides of the transport member 6. The piston of the opening and closing air cylinder 13053 is fixedly connected to the corresponding end of the opening and closing movable plate 13051. A pulling air cylinder 13052 is fixedly arranged on the opening and closing movable plate 13051. The end of the piston of the pulling air cylinder 13052 is fixedly connected to the hook plate. When the opening and closing movable plate 13051 moves downward, it can drive the hook plate to move downward, so that the hook plate is inserted into the groove formed in the movable clamping plate. Subsequently, the pulling air cylinder 13052 will pull the hook plate to drive the movable clamping plate to move in a direction away from the soft-pack battery pack, thereby pulling the movable clamping plate to slide away from the fixed clamping plate against the elastic force of the clamping measurement spring 11603, and further releasing the clamping of the second clamping tray 20 on the soft-pack battery pack.

[0129] The working process of the flipping assembly 15 is as follows. The soft-pack battery pack welded by the first welding assembly 14 is transported to the position of the flipping assembly 15. The folding air cylinder 1504 drives the flipping slide plate 1505 to move downward, thereby driving the movable gripping plate 1503 and the flipping jaws 1507 to move downward to the required position. The auxiliary clamping air cylinder drives the two movable gripping plates 1503 to move relatively, thereby driving the two flipping jaws 1507 to move relatively, and the four clamping blocks on each flipping jaw 1507 are respectively located at the four faces of the outer shell of the soft-pack battery pack until the soft-pack battery pack is fixed between the two flipping jaws 1507; the opening and closing air cylinder 13053 pushes the opening and closing movable plate 13051 to move the pulling air cylinder 13052 downward, and then drives the hook plate to move downward, so that the hook plate enters the hook groove. Then the pulling air cylinder 13052 pulls the hook plate to make the second clamping tray 20 slide away from the fixed clamping plate direction, releasing the clamping of the soft-pack battery pack; the folding air cylinder 1504 drives the flipping slide plate 1505 to move upward, thereby driving the flipping jaws 1507 and the soft-pack battery pack fixed between the two flipping jaws 1507 to move upward, moving it out of the clamping space, locking it after moving to the required position, and the flipping motor 1506 drives the flipping jaws 1507 to rotate so that the bottom plate of the soft-pack battery pack is on the upper side and the top plate is on the lower side; the folding air cylinder 1504 drives the driving flipping slide plate 1505 to move downward, driving the flipped soft-pack battery pack into the clamping space; the closing air cylinder drives the hook plate to move towards the fixed clamping plate direction, so that the second clamping tray 20 clamps the soft-pack battery pack, and then the driving air cylinder drives the fourth mounting plate to move upward, so that the pulling plate slides out of the hook groove; the auxiliary clamping air cylinder drives the two movable gripping plates 1503 to move away from each other, separating the flipping jaws 1507 from the soft-pack battery pack, and then driving by the folding air cylinder 1504 to be located above the soft-pack battery pack to complete the flipping of the soft-pack battery pack.

[0130] As shown Figure 31 in the figure, the second welding assembly 16 is used to weld the joints of the two long sides of the bottom plate and the bent portion, as well as the joint of the bottom plate and the side plate of the housing. The second welding assembly 16 includes two relatively arranged second lasers and two welding robot arms for driving the corresponding second lasers, which are not shown in the figure. The two welding robot arms are located on both sides of the machine tool. One welding robot arm is connected to one second laser. It should be noted that the welding robot arm is a commercially available product and is not shown in the figure. The model of the welding robot arm is FANUC M-iD or FANUC M-iD / , etc. In this embodiment, the second laser and the welding robot arm are fixedly connected through a second mounting seat. A corresponding flange 14012 for connecting with the welding robot arm is fixedly connected to the second mounting seat, and the second laser is fixedly installed on the second mounting seat; a positioning image machine 1407 for photographing the soft-pack battery pack is fixedly arranged on the second mounting seat. When the soft-pack battery pack moves to the working station of the second welding assembly 16, the positioning image machine 1407 collects the image of the soft-pack battery pack, and determines the initial welding position and the travel of the second laser through image recognition.

[0131] The second welding assembly 16 includes a second welding bed 1601 for carrying the transport member 6. Two long-side welding frames 1602 are provided on the second welding bed 1601. Lifting cylinders 1603 are provided at the tops of the two long-side welding frames 1602. The lifting cylinders 1603 can drive a displacement bracket 1607 slidably arranged on the long-side welding frame 1602. Two angle plates 1604 are provided on the side of the displacement bracket 1607 facing the transport member 6. Docking cylinders 1606 are rotatably arranged on the two angle plates 1604. Long-side welding nozzles 1605 are provided at the tops of the two docking cylinders 1606 to assist the second laser and the corresponding welding robot arm to realize the welding work of the long sides of the bottom of the housing. And the docking cylinder 1606 can adjust the angle on the two angle plates 1604, so as to adapt to the bottoms of different sizes of the housing and perform welding operations on the bottom of the housing.

[0132] The second welding bed 1601 is provided with a structure identical to the welding frame 1402 provided on the first welding bed 1401. That is, when the long-side welding nozzle 1605 corresponds to the long side of the bottom of the housing, the top-side welding nozzle 14014 with the same design on the second welding bed 1601 and the first welding bed 1401 will correspond to the short side of the bottom of the housing, and at the same time, it will also press the housing to ensure the relative position during the housing welding process.

[0133] During the welding process of the pouch battery pack housing by the second welding assembly 16, when the transport member 6 conveys the pouch battery pack to the corresponding position of the welding rack 1402, the corresponding top-edge welding nozzle 14014 will cooperate with the corresponding fixed pressure plate 1409 to correspond to the short side position at the bottom of the housing. At the same time, the distance-adjusting cylinder 1603 will drive the displacement bracket 1607 to displace under the support of the long-side welding rack 1602. Subsequently, the displacement bracket 1607 will drive the two docking cylinders 1606 at the corresponding angles to the corresponding positions through the angle plate 1604, that is, to make the long-side welding nozzle 1605 correspond to the long side at the bottom of the housing. Next, the positioning image machine 1407 collects the image of the pouch battery pack and transmits it to the control unit. The control unit identifies and confirms the initial welding position of the image and controls the welding robot arm to drive the second laser to weld in sequence. After the welding is completed, both the long-side welding nozzle 1605 and the short-side welding nozzle will return to their original positions. Subsequently, the transport member 6 will drive the pouch battery pack into the detection assembly 17 to detect the welding quality of the housing.

[0134] As Figure 32As shown, the detection component 17 includes a detection base 1701 for carrying the transport member 6. A detection frame 1702 is fixedly provided on the detection base 1701. The detection frame 1702 is in the shape of a gantry. A detection cylinder 1705 is fixedly provided on the horizontal section of the detection frame 1702. The detection cylinder 1705 can drive the detection carrier 1706 slidably arranged on the detection frame 1702 to move vertically. Thus, when the battery pack transported by the transport member 6 stops at the corresponding position, it drives the detection carrier 1706 to move vertically upward, and after the detection of the battery pack is completed, it places the battery pack on the transport member 6 and then resets, so that the detected battery pack can be transported to the offline robotic arm 18 for grasping and boxing. A detection slide 1704 is slidably arranged on the detection carrier 1706 facing the bottom of the transport member 6. The detection slide 1704 can move closer to each other under the drive of the detection motor to press against both sides of the battery pack. Four detection jaws 1703 driven by a rotating member are provided on the detection slide 1704. The four detection jaws 1703 are driven to open and close by a control cylinder to clamp or release the four long sides of the battery pack. The rotating member includes a rotating motor arranged on one side of the detection slide 1704. The rotating motor drives the control cylinder controlling the detection jaws 1703 to rotate through a transmission belt. And an angle calibrator 10063 is provided on the outer periphery of the control cylinder to make the control cylinder rotate in a cyclic forward and reverse manner. A weld observation head 1707 is fixedly provided on the detection carrier 1706 corresponding to the center of the transport member 6. When the rotating member drives the detection cylinder 1705 to make the detection jaws 1703 drive the battery pack to rotate, it is used to detect the weld of the battery pack housing, thereby ensuring the ability of the housing to protect the battery pack. And during the rotation of the battery pack, the angle calibrator 10063 can control the rotating motor, which is a stepping motor, to rotate a corresponding angle, thereby improving the quality of the weld of the housing photographed by the weld observation head 1707, that is, improving the accuracy of the housing welding quality detection. After the detection is completed, the transport member 6 will transport the processed battery pack to the working range of the offline robotic arm 18, so that the offline robotic arm 18 can grasp and place it into the transfer box for subsequent transportation. The transport member 6 is a structure composed of two chains driven by two spaced sprockets. How the specific transport member 6 operates and is controlled should be understood as the prior art.

[0135] And the transport member 6 further includes a turntable 601. The turntable 601 can connect multiple chains with different arrangement directions together, so as to reduce the equipment occupancy space while efficiently transporting the battery cores through various processing equipment to complete battery processing. Multiplier lines are also provided on both sides of the chains included in the transport member 6 to achieve stable transmission of the first clamping tray 19 and the second clamping tray 20. The transport member 6 further includes a transmission member 401, a first transmission part 602, and a second transmission part 603 to cope with different situations. At the same time, the first transmission part 602 can transport the first clamping tray 19, and the second transmission part 603 can transport the second clamping tray 20 to improve the battery processing efficiency in response to different situations.

[0136] The first row frame 7061, the second row frame 7062, the third row frame 7081 and the fourth row frame 7081 are all lead screw nut pair structures driven by positive and negative stepping motors. The first row frame 7061 and the third row frame 7081 are arranged along the transmission direction of the transport member 6, and the second row frame 7062 and the fourth row frame 7082 are arranged along the directions on both sides of the tabs provided on multiple battery cells. Specifically, the specific models, operating modes and control modes of the first row frame 7061, the second row frame 7062, the third row frame 7081, the fourth row frame 7081, the vertical telescopic frame 7083, the measurement assembly 703, the position measuring instrument 7075, the bending cylinder 7067, the transport member 6, the lifting assembly 704 and the pressing cylinder 7072 should all be understood as common general knowledge of those skilled in the art.

[0137] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various deformations or modifications within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A soft-pack battery assembly device, characterized in that: It has a transport member (6) for transporting battery cells. In the direction of the transport member (6) for transporting battery cells, there are successively a tab processing assembly (3), an adhesive pasting assembly (4), a stacking assembly (5), a bending assembly (7), a tab welding assembly (10), an upper shell assembly (13), and a housing welding assembly; The tab processing assembly (3) includes a cutting member (305) provided corresponding to the transport member (6), and the cutting member (305) can cut the tabs; The adhesive pasting assembly (4) includes an adhesive applying member (403) provided corresponding to the transport member (6) to paste a film on the battery cell; The stacking assembly (5) includes a storage rack (5051) and a gripping member for stacking the battery cells into the storage rack (5051) and then transferring them onto the transport member (6); The bending assembly (7) includes a bending member (706) corresponding to the transport member (6) to press the tabs to bend in two directions along which the transport member (6) transports the battery cells; The tab welding assembly (10) includes a tab welding member (1005) provided corresponding to the transport member (6) to spot-weld the tabs to strengthen the connection of multiple tabs; The upper shell assembly (13) includes two feeding members (1306) provided corresponding to the transport member (6) to cover the entire outside of the battery cell with a housing; The housing welding assembly includes a first welding assembly (14), a flipping assembly (15), and a second welding assembly (16) to weld the outer periphery of the top of the housing and then flip it to weld the bottom of the housing.

2. The soft-pack battery assembly device according to claim 1, wherein: The cutting member (305) includes a cutting laser (3055), a driving gantry (3052), and a height gantry (3053) for driving the cutting laser (3055) to enable the cutting laser (3055) to cut different positions of the tabs to control the length of the tabs.

3. The soft-pack battery assembly equipment according to claim 1, wherein: A transfer robot arm (9) is provided between the tab processing assembly (3) and the adhesive pasting assembly (4), and both the transfer robot arm (9) and the gripping member correspond to a buffer area (503), and the buffer area (503) can store qualified battery cells for replacement.

4. The soft-pack battery assembly device according to claim 1, wherein: The gripping member includes a stacking robot arm (502) and a transfer and placement robot arm (507) successively arranged along the direction of the transport member (6) for transporting the battery cells to stack the battery cells and then transfer and place them onto the transport member (6).

5. The soft-pack battery assembling device according to claim 1, wherein: The bending member (706) includes a first gantry (7061) for driving the displacement of a second gantry (7062) provided corresponding to the transport member (6), and a bending plate (7066) is provided on the second gantry (7062) to press the tabs to bend in two directions along which the transport member (6) transports the battery cells.

6. The soft-pack battery assembly device according to claim 1, characterized in that: A plurality of sampling inspection stations (12) are correspondingly provided on the transport member (6) between the tab welding assembly (10) and the upper shell assembly (13) to sample and process the processed battery cells.

7. The soft-pack battery assembly device according to claim 1, wherein: A combination station is correspondingly provided on a transfer member (401) between the stacking assembly (5) and the bending assembly (7) to cooperate with a first clamping tray (19) that the transport member (6) can transport to position the bus bar at the corresponding position of the battery cell.

8. The soft-pack battery assembly device according to claim 1, wherein: The transport member (6) includes a first transport portion capable of transporting the first clamping tray (19) and a second transport portion capable of transporting the second clamping tray (20) to maintain the quality of the welding of the tab and the bus bar and the welding efficiency of the housing.

9. The soft-pack battery assembly device according to claim 8, characterized in that: The first clamping tray (19) includes a lead screw-nut pair to stably clamp and position the battery cell and the bus bar, and the second clamping tray (20) includes an elastic member that cooperates with the movable clamping plate and the fixed clamping plate to position the battery cell.

10. A method for assembling a soft-pack battery, characterized in that: A soft-pack battery assembly device using the transport member (6), tab processing assembly (3), adhesive pasting assembly (4), stacking assembly (5), bending assembly (7), tab welding assembly (10), upper shell assembly (13), and housing welding assembly according to any one of claims 1-9 is used to successively perform cutting, adhesive pasting, stacking, bending, tab reinforcement, upper shell, and housing welding processes on the battery cell.

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