A pre-processing device and method for soft-pack battery welding

Abstract

The present invention relates to the field of battery processing technology, and specifically to a pre-processing device for soft-pack batteries before welding and a method thereof. The device comprises a loading assembly, a tab processing assembly, a gluing assembly, a stacking assembly, and a bending assembly, which can sequentially process and complete the pre-processing of battery cells. The tab processing assembly and the gluing assembly are connected by a transfer robot arm, and the stacking assembly is connected by a transmission member to transfer the battery cells. The tab processing assembly, the gluing assembly, the stacking assembly, and the bending assembly are all provided with a detection structure to promptly detect processing errors in various links during the pre-processing of the battery cells. The detection structure includes an electrode test piece and a size inspection piece in the tab processing assembly, an observation piece in the gluing assembly, a detection piece in the stacking assembly, and a position finder in the bending assembly. This solves the problem in the prior art that the pre-processing device for soft-pack batteries cannot promptly detect each process, which to a certain extent causes a decrease in the final yield.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing, and in particular to a pre-processing device and method for soft-pack battery before welding processing. Background Art

[0002] During the production and processing of soft-pack batteries, pretreatment is a critical step in ensuring that the battery cells meet requirements. Maintaining the appropriate length of the cell tabs is particularly important. However, current soft-pack battery pretreatment equipment has significant technical deficiencies. Most existing equipment uses a comprehensive inspection at the final stage of the pretreatment process to determine if the pretreatment has passed. This inspection method results in the battery cells having already completed the entire pretreatment process by the time of the final inspection.

[0003] If the test results in a failure, the battery cell must be disassembled again for recycling. This process not only increases operational complexity but also significantly reduces the efficiency of pre-processing and recycling. Furthermore, due to the delayed detection, problems cannot be discovered and corrected in time during the pre-processing process. Consequently, errors or defects in the pre-processing process cannot be corrected in a timely manner, which in turn affects subsequent production and ultimately leads to a decrease in product yield. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the pre-processing equipment for soft-pack batteries cannot detect each process in a timely manner, which causes a decrease in the final yield to a certain extent, and to provide a pre-processing equipment and method for soft-pack batteries before welding processing.

[0005] In order to solve the shortcomings of the above technical problems, the present invention adopts the following technical solutions: a pre-processing device for soft-pack batteries before welding, which has a loading assembly, a tab processing assembly, a gluing assembly, a stacking assembly and a bending assembly that can sequentially process and complete the pre-processing of battery cells. The tab processing assembly and the gluing assembly are connected by a transfer robot arm, and the stacking assembly is connected by a transmission member to transfer the battery cells.

[0006] The tab processing assembly, gluing assembly, stacking assembly and bending assembly are all provided with detection structures to promptly detect processing errors in each link during the pre-processing of the battery cell;

[0007] The detection structure includes an electrode test piece and a size inspection piece in the tab processing assembly, an observation piece in the glue sticking assembly, a detection piece in the stacking assembly, and a position finder in the bending assembly.

[0008] As a further optimization of the pre-processing equipment for soft-pack battery welding processing of the present invention: a buffer area is provided within the working range of the transfer robot arm and the stacking robot arm included in the stacking assembly, and the buffer area can replace the battery cells that have passed the corresponding pre-processing.

[0009] As a further optimization of the pre-processing equipment for soft-pack batteries before welding processing of the present invention: the tab processing assembly includes a support base, the support base is provided with a transmission part that can transmit the battery cell, and the support base is provided with a cutting part along the transmission direction of the transmission part, and the two sides of the cutting part along the transmission direction of the battery cell correspond to the electrode test part and the size inspection part respectively.

[0010] As a further optimization of the pre-processing equipment for soft-pack batteries before welding processing of the present invention: the electrode test piece includes a first bracket fixed on the support base, the first bracket can allow the transmission piece to pass through, and a detector is provided on the first bracket, and the detector is connected to a detection head corresponding to the battery cell tab. The detection head is driven by a first cylinder provided on the first bracket for vertical displacement, and the detection head corresponds to a support plate provided on the first bracket that can carry the battery cell tab.

[0011] As a further optimization of the pre-processing equipment for soft-pack batteries before welding processing of the present invention: the size inspection part includes two inspection frames fixed on the support base, the two inspection frames are arranged corresponding to the two pole ears of the battery cell and for the transmission part to pass through, and an inspection head is provided on the top of the inspection frame to take pictures to inspect the length of the pole ears.

[0012] As a further optimization of the pre-processing equipment for soft-pack batteries before welding processing of the present invention: the glue-applying assembly includes a supporting base, on which another transmission part for transmitting the battery cells is provided, and the supporting base is provided with two glue-applying parts and a glue-tearing part in sequence along the direction of transmitting the battery cells, and an observation part is provided on the side of the glue-tearing part facing away from the glue-applying part.

[0013] As a further optimization of the pre-processing equipment for soft-pack battery welding processing of the present invention: the observation part includes an observation frame arranged on a supporting base, the observation frame can allow the corresponding transmission part to pass through, and an observation head is provided at the center of the observation part corresponding to the transmission part to photograph the position of the film on the battery cell.

[0014] As a further optimization of the pre-processing equipment for soft-pack batteries before welding processing of the present invention: the bending assembly includes a fourth support frame that carries the transmission member, and a working frame is provided on the fourth support frame. The working frame is provided with bending members and flattening members in sequence along the transmission direction of the transmission member to bend and trim the stacked battery cells transmitted by the transmission member, and the working frame and the fourth support frame correspond to the bending members and the flattening members, and a lifting assembly and a pressing assembly are provided in sequence at the place where the transmission member passes to locate the stacked battery position for bending the battery cell tabs.

[0015] As a further optimization of the pre-processing equipment for soft-pack batteries before welding processing of the present invention: the pressing assembly includes a pressing frame arranged on a work frame, the pressing frame is provided with a vertically retractable pressing cylinder, the pressing cylinder is provided with a pressing plate for pressing the stacked battery cells, and the pressing plate is connected to a detection frame on both sides corresponding to the battery cell tabs through a connecting plate, and two position measuring instruments are provided on the detection frame to detect whether the tabs are bent or protruding.

[0016] A method for pre-processing a soft-pack battery before welding is provided, wherein a pre-processing device for pre-processing a soft-pack battery before welding is used to perform the following steps:

[0017] S1. Use the tab processing component to cut, trim and inspect the tabs. After inspection, the damaged battery cells are transferred by the transfer robot and replaced in the corresponding buffer area.

[0018] S2. Use the glue sticking assembly to glue and inspect the battery cells transferred by the transfer robot;

[0019] S3. Use a stacking assembly to inspect and grab the battery cells that have passed step S2. During the grabbing process, damaged battery cells are replaced through a buffer area provided in the stacking assembly, and good battery cells that have been glued are stacked and transferred to a transmission member for transmission;

[0020] S4. Bend the tab using a bending assembly corresponding to the transmission component and inspect the bending condition.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention configures a tab processing assembly, including an electrode test piece and a size inspection piece, to conduct a comprehensive inspection of the battery cells processed by the tab processing assembly, and promptly identify the processing quality of the battery cells by the tab processing assembly. The observation piece in the glue-applying assembly is used to ensure the quality of the battery cells processed by the glue-applying assembly. The position and state of the tabs are accurately detected by the detection piece in the stacking assembly, that is, whether the battery cells are damaged during the process of the glue-applying assembly. With the help of the positioner in the bending assembly, the degree and state of the bending are strictly controlled, thereby ensuring the bending quality of the battery cell tabs. Detection structures are set in each processing equipment and process to quickly detect errors that occur during the pre-processing of the battery cells, effectively improve the yield rate of the final output battery cells, and thus improve production efficiency and processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the top view of the structure of the present invention;

[0024] Figure 2 This is a first structural schematic diagram of the feeding assembly of the present invention;

[0025] Figure 3 This is a second structural schematic diagram of the feeding assembly of the present invention;

[0026] Figure 4 Schematic diagram of the structure of the tab cutting assembly of the present invention;

[0027] Figure 5 Schematic diagram of the structure of the detection element of the present invention;

[0028] Figure 6 Schematic diagram of the structure of the flattening member of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the reversing member of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the cutting piece of the present invention;

[0031] Figure 9 This is a schematic diagram of the first structure of the adhesive assembly of the present invention;

[0032] Figure 10 This is a second structural schematic diagram of the adhesive assembly of the present invention;

[0033] Figure 11 This is a schematic diagram of the first partial structure of the adhesive assembly of the present invention;

[0034] Figure 12 This is a schematic diagram of a second partial structure of the adhesive application assembly of the present invention;

[0035] Figure 13 This is a first structural schematic diagram of the stacking assembly of the present invention;

[0036] Figure 14 This is a second structural schematic diagram of the stacking assembly of the present invention;

[0037] Figure 15 It is a structural schematic diagram of the bending assembly of the present invention;

[0038] Figure 16 It is a structural schematic diagram of the bending part of the present invention;

[0039] Figure 17 It is a structural schematic diagram of the leveling assembly of the present invention;

[0040] 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-deflection 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. Detection head; 3015. Support plate; 3 016, detector; 302, adjustment member; 3021, second support frame; 3022, second cylinder; 3023, first rotary 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 rotary cylinder; 3036, ninth cylinder; 3037, clamping claw; 3038, first clamping block; 304, flattening member; 3041, third support frame; 3042, lower pressure block; 3043, upper pressure block; 3044, second mounting plate; 3045, flattening cylinder; 305, cutting member; 3051, first bracket; 3052, driving frame; 3053 , height rack; 3054, exhaust pipe; 3055, laser; 3056, pressure plate; 3057, first camera; 3058, processing hole; 3059, third cylinder; 30510, avoidance hole; 30511, feed pipe; 30512, loading slide; 30513, third bracket; 306, size inspection piece; 3061, inspection rack; 3062, inspection head; 307, support base; 4, glue assembly; 401, transmission piece; 4011, transmission belt; 4012, placement rack; 4013, guide rail; 402, carrying base; 403, glue piece; 4031, loading rack; 4032, glue storage rack; 4033, adsorption rack; 4034, waste box; 4035, glue robot arm; 4 036, glue peeling jaws; 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 frame; 4062, rolling wheel; 407, glue peeling piece; 4071, glue peeling frame; 4072, finger cylinder; 408, observation piece; 4081, observation frame; 4082, observation head; 409, leveling piece; 4091, leveling frame; 4092, pressing cylinder; 4093, upper clamping head; 4094, lower clamping head; 4010, auxiliary piece;40101, lifting clamping claw; 40102, two-way cylinder; 40103, pushing cylinder; 40104, auxiliary frame; 5, stacking assembly; 501, detection part; 5011, light plate; 5012, observation head; 5013, carrier frame; 502, stacking robot arm; 503, buffer area; 504, adsorption part; 505, stacking part; 5051, storage rack; 5052, stacking rack; 5053, cover plate; 5054, rotating table; 506, opening assembly; 507, transfer robot arm; 6, transport part; 7, bending assembly; 701, fourth support frame; 702, working frame; 703, measuring assembly; 704, lifting group Components; 705, clamping tray; 706, bending component; 7061, first row frame; 7062, second row frame; 7063, connecting frame; 7064, third load-bearing plate; 7065, impact member; 7066, bending plate; 7067, bending cylinder; 707, pressing assembly; 7071, pressing frame; 7072, pressing cylinder; 7073, connecting plate; 7074, inspection frame; 7075, position finder; 708, leveling assembly; 7081, third row frame; 7082, fourth row frame; 7083, vertical telescopic frame; 7084, auxiliary plate; 7085, roller; 7086, load-bearing block; 8, assembly station; 9, transfer robot arm. DETAILED DESCRIPTION

[0041] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with examples, but the content of the present invention is not limited to the following examples.

[0042] like Figure 1 As shown, a pre-processing equipment for soft-pack battery welding processing has a loading component 2, a tab processing component 3, a gluing component 4, a stacking component 5, a transport component 6 and a bending component 7 arranged in sequence. The loading component 2 can transfer the battery cell conveyor 1 to grab the battery cell and stably place it on the tab processing component 3. After the tab of the battery cell is trimmed by the tab processing component 3, it will be transferred to the gluing component 4 for gluing. After the gluing is completed, it will be grabbed and stacked in sequence by the stacking component 5, and then placed on the clamping tray 705 provided on the transport component 6. The transport component 6 is provided with an opening component 506 to assist in opening the clamping tray 705 to cooperate with the stacking component 5 to place the stacked battery cells. The transport component 6 will then transfer the clamping tray 705 with the battery cells thereon to the assembly station 8 to facilitate the staff to install the busbar on the clamping tray 705 with the battery cells, and close the clamping tray 705 to position the busbar and the battery cells. After the busbar is installed, the transport unit 6 transports the closed clamping tray 705 with the battery cells and busbar into the bending assembly 7 to bend the tabs on the battery cells and connect them to the busbar to complete the pre-processing of the battery cells.

[0043] like Figure 2 and Figure 3 As shown, the loading assembly 2 places the battery cells before the tab processing assembly 3. In order to avoid contact or interference between the battery cells during the transfer process when the battery cells are processed on the tab processing assembly 3, the adjacent battery cells need to maintain a fixed distance. Therefore, the loading assembly 2 includes an adjustment assembly 204 provided on the distance adjustment platform 206 and used to adjust the distance between the battery cells. In this embodiment, the number of adjustment assemblies 204 is two, and they are distributed along the width direction of the battery cells. One adjustment assembly 204 can adjust two battery cells. Two adjustment assemblies 204 can adjust four battery cells at a time, so that the distance between two adjacent battery cells in the four battery cells meets the requirements of the battery cell distance in the tab processing assembly 3.

[0044] The adjustment assembly 204 includes two first carrier plates 2043 arranged opposite each other and capable of moving toward or away from each other. The cells on the cell conveyor 1 are transferred to the first carrier plates 2043 via the second robotic arm 201 and transfer plate 202 included in the loading assembly 2. The cells, after being adjusted in distance, are then transferred from the first carrier plates 2043 to the transmission member 401 used in the tab processing assembly 3 via the placement member 203. The first carrier plates 2043 are slidably connected to the distance adjustment platform 206. Two sets of sliding members 2042 corresponding to the two sets of first carrier plates 2043 are fixedly connected to the distance adjustment platform 206. The sliding members 2042 assist in the sliding of the first carrier plates 2043. The sliding members 2042 include two first rails per set, distributed along the width of the first carrier plates 2043. First sliders corresponding to the two first rails are fixedly connected to the first carrier plates 2043 and are capable of sliding along the rails. A fourth cylinder 2041 is provided between the two first supporting plates 2043 for driving the two to move toward and away from each other. The fourth cylinder 2041 is fixedly mounted on the distance adjustment platform 206 and is located below the first supporting plates 2043. The two pistons of the fourth cylinder 2041 are fixedly connected to the corresponding first supporting plates 2043. When the two first supporting plates 2043 move toward each other, the distance between them decreases; when the two first supporting plates 2043 move away from each other, the distance between them increases. An anti-deflection block 2044 is fixedly connected to the edge of the first supporting plate 2043 facing the tab processing assembly 3. The top of the anti-deflection block 2044 is higher than the upper surface of the first supporting plate 2043, limiting the position of the battery cells on the first supporting plate 2043 to prevent them from deflecting.

[0045] The second robotic arm 201 that drives the transfer plate 202 is located on the distance adjustment platform 206. The second robotic arm 201 can drive the transfer plate 202 to move in multiple axes. The transfer plate 202 is provided with multiple groups of second suction cups for adsorbing battery cells, and each group of second suction cups corresponds to one battery cell. In this embodiment, the second suction cups are divided into four groups, and the spacing between two adjacent groups of second suction cups corresponds to the spacing between the battery cells in the material frame, so that one group of second suction cups adsorbs one battery cell. The number of second suction cups in each group is four and they are evenly fixed on both sides of the transfer plate 202. Specifically, two second suction cups in each group 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 an "L"-shaped connecting piece, and the connection method between the "L"-shaped connecting piece and the transfer plate 202 is bolt connection.

[0046] The placement member 203 includes a second connecting plate corresponding one-to-one with the first supporting plate 2043. A plurality of pull-up suction cups 2032 for adsorbing the battery cells are fixedly mounted on the second connecting plate. The second connecting plate is driven vertically by a pull-up cylinder 2031, and the pull-up cylinder 2031 is connected to a placement rack 2033 located on the distance adjustment platform 206, so that the second connecting plate can reciprocate horizontally and vertically. The number of second connecting plates is the same as the number of first supporting plates 2043, that is, there are four second connecting plates. The spacing between two adjacent second connecting plates matches the spacing between the battery cells in the tab processing assembly 3. The second connecting plates are fixedly mounted with a plurality of pull-up suction cups 2032 for securing the battery cells. Each second connecting plate is provided with four pull-up suction cups 2032. The four pull-up suction cups 2032 are divided into two parts and are located on both sides of the second connecting plate. The two pull-up suction cups 2032 on each side are fixedly connected to the second connecting plate via a "Z"-shaped connecting piece.

[0047] When the battery cells on the first carrier plate 2043 are translated, the placement rack 2033 drives the first support plate to slide, thereby driving the pull-up suction cup 2032 to be located above the corresponding battery cells, and then the pull-up cylinder 2031 drives the pull-up suction cup 2032 to move downward until it contacts the battery cells and adsorbs the battery cells; then the pull-up cylinder 2031 drives the pull-up suction cup 2032 and the battery cells to rise, and then, driven by the placement rack 2033, move to the battery cells above the transmission part 401 of the tab processing assembly 3, and then the pull-up cylinder 2031 drives the pull-up suction cup 2032 to move downward to place the battery cells on the transmission part 401 provided on the tab processing assembly 3, and separate it from the battery cells to complete the loading.

[0048] A pusher 205 for pushing the battery cells on the first supporting plate 2043 is provided at one end of the first supporting plate 2043, facing away from the placement member 203. The pusher 205 includes a pusher block 2054 and an eleventh cylinder 2051, which is mounted on the spacing adjustment platform 206 and is configured to reciprocate the pusher block 2054. Specifically, the piston end of the eleventh cylinder 2051 is fixedly connected to a first connecting plate 2052. The first connecting plate 2052 is vertically disposed, with the bottom end of the first connecting plate 2052 fixedly connected to the piston end of the eleventh cylinder 2051 and the top end of the first connecting plate 2052 connected to the pusher block 2054. A plurality of first springs 2053 are provided between the first connecting plate 2052 and the push block 2054. Two first springs 2053 are provided on the first connecting plate 2052. A plurality of connecting rods are slidably provided on the first connecting plate 2052. The number of connecting rods corresponds one-to-one with the number of first springs 2053. The connecting rods are cylindrical in structure. A baffle is fixedly connected to one end of the connecting rod to prevent the connecting rod from falling off the first connecting plate 2052. The other end of the connecting rod passes through the first connecting plate 2052 and is fixedly connected to the push block 2054. The first springs 2053 are sleeved on the connecting rods. After adjusting the spacing between the cells on the first supporting plate 2043, the eleventh cylinder 2051 pushes the push block 2054 toward the cells and pushes the edges of the cells to align with the anti-deflection block 2044 to adjust the position of the cells, ensuring that the edges of the cells are aligned. The provision of the first springs 2053 acts as a buffer to prevent the push block 2054 from damaging the cells.

[0049] In this embodiment, two first protective claws are provided on each second connecting plate. Specifically, a grabbing cylinder is fixedly connected to the second connecting plate, and the grabbing cylinder drives the two first protective claws to move toward or away from each other. The first protective claw includes a fixed rod fixedly connected to the end of the grabbing cylinder piston, and a block is fixedly connected to the lower surface of the fixed rod. A protective part is vertically fixed to the end of the block away from the fixed rod. When the first protective claws move toward each other, the protective part can enter under the battery cell, so that when the suction cup 2032 is pulled up to translate the battery cell, it plays a protective role on the battery cell to prevent it from falling.

[0050] like Figure 4 As shown, the tab processing assembly 3 includes a transmission member 401, along which the cell transmission direction of the transmission member 401 is sequentially provided with an electrode testing member 301 for detecting the cell tab electrode, an adjustment member 302 for adjusting the direction of the cell tab electrode, a reversing member 303 for flipping the cell, a flattening member 304 for flattening the tab, a cutting member 305 for cutting the tab, another flattening member 304 for flattening the tab, and a size inspection member 306 for detecting the tab.

[0051] like Figure 5As shown, the electrode test piece 301 includes a detector 3016 and a plurality of detection heads 3014 connected to the detector 3016, and the detection heads 3014 can contact the battery cell tabs; the detector 3016 is fixedly mounted on the support base 307 via a first support frame 3011, and the first support frame 3011 is provided with a first cylinder 3012 for driving the detection heads 3014 to contact or separate from the battery cell. 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, and the two are connected by bolts. The two ends of the first horizontal rod are respectively fixedly connected to the top ends of the two first vertical rods, and the two are connected by bolts. In this embodiment, the detector 3016 is fixedly mounted on the first horizontal rod.

[0052] The first cylinder 3012 and the detection head 3014 it pushes form an electrode detection unit. In this embodiment, there are four electrode detection units, divided evenly into two groups. The two groups of electrode detection units are spaced apart along the battery cell conveyance direction. Within each group, the electrode detection units are located on either side of the corresponding transmission element 401. Each group of electrode detection units detects one battery cell, meaning it can simultaneously inspect the tabs of two battery cells. In this embodiment, each electrode detection unit has four detection heads 3014.

[0053] The first cylinder 3012 is connected to the first support frame 3011 in the following manner: a second fixing plate is fixedly connected to each of the first vertical rods of the first support frame 3011, the length of the second fixing plate being parallel to the direction of cell transport, and the second fixing plate is connected to the first support frame 3011 by bolts; two first mounting plates 3013 are fixedly connected to each of the second fixing plates, and the two are connected by bolts, and the first cylinder 3012 is fixedly mounted on the first mounting plates 3013; the piston rod end of the first cylinder 3012 is fixedly connected to a third connecting plate, and the four detection heads 3014 are fixedly connected to the third connecting plate. A plurality of support plates 3015 capable of supporting the tabs are fixedly connected to the first mounting plate 3013, and the support plates 3015 are located at the bottom of the first mounting plate 3013, and the two are connected by bolts.

[0054] The working process of the electrode test piece 301 is as follows: the transmission part 401 transmits the battery cell to the assembly station, the pole tab is located between the support plate 3015 and the detection head 3014, and the lower surface of the pole tab is in contact with the upper surface of the support plate 3015; the first cylinder 3012 drives the corresponding detection head 3014 to move downward until the detection head 3014 is in contact with the corresponding pole tab; the detector 3016 detects the pole tab, determines the positive and negative poles of the battery cell and transmits it to the control system; after the detection is completed, the first cylinder 3012 drives the detection head 3014 to rise, separates the detection head 3014 from the pole tab, and the transmission part 401 transmits the battery cell to the next station.

[0055] like Figure 4As shown, if the direction of the battery cell tab electrode is correct, the adjustment member 302 does not work. If the direction of the battery cell tab electrode is wrong, the control system controls the adjustment member 302 to adjust its electrode direction. The adjustment member 302 includes a first suction cup 3024 for grabbing the battery cell and a clamping claw cylinder 3025 that assists the first suction cup 3024 in clamping. The first suction cup 3024 is vertically reciprocated by the second cylinder 3022 and rotated by the first rotating cylinder 3023. The second cylinder 3022 is installed on the support base 307 through the second support frame 3021, wherein 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, and the connection method of 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, and the connection method of the two is bolt connection. The second cylinder 3022 is connected to the second support frame 3021 in the following manner: a second slide cylinder is fixedly mounted at the center of the second horizontal rod. The second cylinder 3022 is fixed to 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 conveying direction. The piston end of the second cylinder 3022 is connected to the first rotating cylinder 3023, which is in turn connected to the first suction cup 3024. Specifically, the piston end of the first rotating cylinder 3023 is fixedly connected to the first rotating plate, to which two symmetrically distributed first connecting pieces are fixedly connected. One end of the first connecting piece is fixedly connected to the first rotating plate, and the two are connected by bolts. The other end of the first connecting piece is fixedly mounted to the first suction cup 3024, and each first connecting piece is mounted with two first suction cups 3024. A clamping cylinder 3025 is provided on the first rotating plate, and the clamping cylinder 3025 is provided with two second protective claws. The two second protective claws are driven by the seventh cylinder to move toward or away from each other. The seventh cylinder is a double-acting cylinder and is fixedly installed at the center position of the first rotating plate and is located below the first rotating plate. The two second protective claws are correspondingly fixed on the pistons on both sides of the seventh cylinder; the end of the second protective claw is provided with a bending portion that can be located under the battery cell, and when the first suction cup 3024 grabs the battery cell and rotates, the bending portion of the second protective claw is located under the battery cell, which plays a protective role and prevents the battery cell from falling.

[0056] The working process of the adjustment part 302 is that the electrode test part 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 part 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 part 401, and the first suction cup 3024 separates from the battery cell and rises.

[0057] like Figure 7 As shown, the reversing member 303 includes a second support plate 3032 mounted on a support base 307. The second support plate 3032 is equipped with a barcode scanner 3031 and two sets of clamping jaws 3037 driven by two ninth cylinders 3036 to clamp the battery cells. Each set of two clamping jaws 3037 forms a clamping zone, and the two clamping jaws 3037 move toward each other, causing the edges of the battery cells to contact the clamping jaws 3037. The two ninth cylinders 3036 are driven to flip by a second rotating cylinder 3035 mounted 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 by bolting two parallel, vertically arranged rails. The second support plate 3032 is fixedly connected to the fourth connecting plate 3034 with sliders corresponding to the rails, capable of sliding along the rails. The fourth connecting plate 3034 is driven to reciprocate vertically by the eighth cylinder 3033. The eighth cylinder 3033 is fixedly mounted on the side of the second support plate 3032 facing away from the transmission member 401. The fourth connecting plate 3034 is located on the side closer 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 support plate 3032 and is fixedly connected to the end of the piston rod of the eighth cylinder 3033, enabling the eighth cylinder 3033 to drive the vertical movement of the fourth connecting plate 3034. The ninth cylinder 3036 is a double-acting cylinder, namely, one end of the two clamping jaws 3037 is fixedly connected to the pistons on either side of the ninth cylinder 3036, and the other end of the clamping jaws 3037 extends toward the other side of the transmission member 401.

[0058] In this embodiment, each clamping jaw 3037 is fixedly connected to a plurality of first clamping blocks 3038 distributed along its length direction, and each clamping jaw 3037 has two first clamping blocks 3038. The first clamping blocks 3038 are connected to the clamping jaw 3037 by bolt connection, and the first clamping blocks 3038 are provided with a groove with an opening facing the clamping area and capable of allowing the edge of the battery cell to extend into.

[0059] In this embodiment, two sensors corresponding to the two clamping units are fixedly connected to the fourth connecting plate 3034 , and a sensing sheet is fixedly connected to the second rotating disk. The sensors can sense the sensing sheet during the rotation of the clamping jaws 3037 .

[0060] The working process of the reversing member 303 is as follows: first, the barcode scanning gun 3031 scans the battery cell identification. If the barcode scanning gun 3031 does not retrieve the battery cell identification, the eighth cylinder 3033 drives the clamping jaw 3037 to move downward to the required position, and the ninth cylinder 3036 drives the two clamping jaws 3037 to move toward each other. The two clamping jaws 3037 move toward each other so that the edge of the battery cell conflicts with the clamping jaw 3037. Specifically, the edge of the battery cell enters the groove and conflicts with the bottom of the groove, thereby fixing the battery cell; After the cylinder 3033 drives the clamping jaw 3037 to move upward to the desired position, the second rotating cylinder 3035 drives the clamping jaw 3037 to rotate 180° so that the battery cell logo faces upward, completing the flip; the eighth cylinder 3033 drives the clamping jaw 3037 to move downward until the battery cell is located in the transmission part 401. After the ninth cylinder 3036 drives the two clamping jaws 3037 to move in opposite directions, the eighth cylinder 3033 drives the clamping jaw 3037 to move upward, so that the transmission part 401 transfers the battery cell to the next workstation.

[0061] like Figure 6As shown, 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, and a flattening area for the battery cell tabs to enter is formed between the upper pressing blocks 3043 and the lower pressing blocks 3042 in each group. The flattening member 304 also 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, and the two third vertical rods are located on both sides of the transmission member 401, and the bottom ends of the third vertical rods are fixedly connected to the support base 307, and the connection between the two is bolted. A fourth fixing plate is fixedly connected to each third vertical rod, and the connection between the two is bolted; two second mounting plates 3044 distributed along the battery cell transmission direction are fixedly connected to each fourth fixing plate, and the second mounting plates 3044 are connected to the fourth fixing plates by bolts. Two vertical and oppositely arranged flattening cylinders 3045 are fixedly installed on each second mounting plate 3044, and 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 cells at the same time. The flattening member 304 flattens the battery cell tabs at one time, improving the flatness of the tabs, facilitating subsequent laser cutting, and improving the accuracy of the tabs.

[0062] like Figure 8 As shown, the cutting member 305 includes a first camera 3057, a laser 3055, and a driving rack 3052 and a height rack 3053 for driving the laser 3055 and the first camera 3057. The first camera 3057 collects the image of the tab and transmits it to the control system. The control system recognizes the image and confirms the initial position of the laser 3055. In this embodiment, the first camera 3057 and the laser 3055 are called laser cutting units. There are two laser cutting units, which are located on both sides of the transmission member 401. One laser cutting unit can cut two battery cells located on the tab on that side.

[0063] The driving rack 3052 can drive the height rack 3053 to reciprocate along the battery cell transmission direction. The height rack 3053 is connected to the fifth mounting plate, which can drive the fifth mounting plate to reciprocate horizontally along the vertical battery cell transmission direction, and the first camera 3057 and the laser 3055 are both arranged on the fifth mounting plate.

[0064] The first bracket 3051 includes two first vertical rods distributed along the battery cell 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 to the middle plate, and the connection between the first vertical rods and the middle plate is bolted.

[0065] The fifth fixing plate is fixedly connected to the sixth fixing plate, and 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 provided on the sixth fixing plate to improve the quality of the tab image.

[0066] A pressure plate 3056 is mounted on the telescopic end of the third cylinder 3059, parallel to the transmission member 401. The pressure plate 3056 is a square plate-shaped structure with machining holes 3058 for exposing the tabs. The four machining holes 3058 are located at the four corners of the pressure plate 3056 and correspond to the tabs of the two battery cells, i.e., one machining hole 3058 for each tab. A discharge tube 30511 is located at the bottom of the machining hole 3058. The sidewalls of the machining hole 3058 are inclined surfaces, allowing the cut tab waste to fall into the discharge tube 30511 for collection, making it convenient for operators to handle it later. Avoidance holes 30510 are also provided on the sidewalls of the machining hole 3058. The pressing plate 3056 is driven to reciprocate vertically by a third cylinder 3059. During this vertical motion, the pressing plate 3056 can lift the tabs, reducing the impact of the transmission element 401 on the battery cells. Two third cylinders 3059 are located on either side of the transmission element 401. Below each third cylinder 3059 is a third bracket 30513 fixedly connected to the support base 307. The third cylinder 3059 is fixedly mounted on the third bracket 30513, with the piston end of the third cylinder 3059 fixedly connected to the lower surface of the pressing plate 3056. Each third bracket 30513 is fixedly connected to a load carrier 30512. The load carrier 30512 is equipped with a stopper fixedly connected to the pressing plate 3056 to maintain the stability of the pressing plate 3056. An exhaust pipe 3054 is provided on the fifth mounting plate to exhaust gases generated by laser cutting.

[0067] The working process of the cutting piece 305 is as follows: the battery cell is transferred to the top of the pressing plate 3056 via the transmission piece 401, and then the third cylinder 3059 will make the pressing plate 3056 lift the battery cell, and then drive the rack 3052 to drive the first camera 3057 to collect the image of the corresponding tab and transmit it to the control system. The control system recognizes the image and confirms the initial position of the laser 3055 and the cutting path of the laser 3055. After the laser 3055 cuts the corresponding tab, it cuts the other tab on the same side again. After the four tabs are cut, the pressing plate 3056 moves downward, and then the transmission piece 401 transfers the battery cell to the size inspection piece 306 located on the support base 307 row. Figure 4As shown, the size inspection part 306 includes an inspection frame 3061 fixed on the support base 307. There are two inspection frames 3061 symmetrically arranged on both sides of the transmission part 401 to correspond to the position of the tabs after cutting. The inspection frame 3061 is provided with an inspection head 3062 to detect the length of the tabs after cutting, and then determine whether the trimming meets the requirements.

[0068] like Figure 2 As shown, after the tabs are processed, the transfer robot 9 will cooperate with the corresponding transfer suction cup to place the battery cell with the tabs cut and processed onto the glue assembly 4. Figure 9 、 Figure 10 、 Figure 11 as well as Figure 12 As shown, the glue assembly 4 includes a glue assembly 4 for pasting films on the battery cells, and the glue assembly 4 corresponds to a stacking assembly 5 that can stack the battery cells after the films are pasted. The glue assembly 4 includes a supporting base 402, on which a transmission part 401 and a back glue structure, a protective glue structure, a glue tearing part 407, an observation part 408, a flattening part 409 and an auxiliary part 4010 are sequentially arranged along the transmission part 401, and then the corresponding films are pasted on the multiple battery cells that make up the complete soft pack battery as required, so that the multiple battery cells can be stacked and combined together later. Figure 13 and Figure 14 As shown, the stacking assembly 5 includes a stacking robot 502 and a transfer robot 507. The operating range of the stacking robot 502 is provided with an inspection component 501, a buffer area 503, and a stacking component 505, so that the glued battery cells can be sequentially inspected and transferred to the stacking component 505 for stacking. The transfer robot 507 can transfer the multiple battery cells stacked and assembled by the stacking component 505 through the adsorption component 504 of the transfer robot 507, that is, transfer them to the clamping tray 705 in the subsequent transmission component 401. At the same time, the opening component 506 provided on the transmission component 401 can realize the opening and closing of the clamping tray 705, thereby allowing the transfer robot 507 to place the stacked battery cells in the clamping tray 705 and close it for positioning, and then proceed to the subsequent processing steps.

[0069] The buffer area 503 can also be set within the working range of the transfer robot 9, so that when an error occurs in the cutting of the battery cell tab, a good battery cell can be replaced for subsequent processing, thereby improving the yield of the final battery cell pre-processed product.

[0070] like Figure 4 、 Figure 9 、 Figure 10 、 Figure 12 as well as Figure 14As shown, the transmission member 401 includes a transmission belt 4011 provided on a supporting base 402 and driven by a power source. A plurality of placement racks 4012 for stably storing and transmitting soft-packed battery cells are evenly arranged on the outer circumference of the transmission belt 4011, and a guide rail 4013 is slidably fitted at the edge of the placement rack 4012. The guide rail 4013 is fixedly provided on the supporting base 402 or the support base 307 to ensure the stability of the transmission belt 4011 in stably transmitting the soft-packed battery cells for gluing. The back glue gluing structure and the protective glue gluing structure both include a flipping member 405, an auxiliary member 4010, a gluing member 403, and a rolling member 406 provided along the transmission direction of the transmission belt 4011 to flip the battery cells to the corresponding side as needed. Subsequently, the back glue or protective film can be stably applied in the corresponding order as needed to perform the battery cell gluing operation. The flipping part 405 includes a flipping frame 4051 arranged on the supporting base 402, and the flipping frame 4051 is provided with a third rotating cylinder 4053 driven by a lifting cylinder 4054 for vertical displacement. 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 enable the opening and closing cylinder 4055 to drive the two positioning claws 4052 to clamp the battery cell. Then the lifting cylinder 4054 will run 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, reset the battery cell to place it in the placement rack 4012 for subsequent processing. After the flipping part 405 flips and adjusts the battery cell or when flipping is no longer required, the battery cell will move along the running direction of the conveyor belt 4011, and finally the auxiliary part 4010 on the supporting base 402 will be used to repeatedly arrange the position of the battery cell in the placement rack 4012 to ensure the accuracy of subsequent processing of the battery cell. The auxiliary part 4010 includes an auxiliary frame 40104 arranged on the supporting base 402, and a two-way cylinder 40102 is slidingly provided on the auxiliary frame 40104. The two telescopic ends of the two-way cylinder 40102 are provided with lifting clamping claws 40101, and the two-way cylinder 40102 is driven by a pushing cylinder 40103 arranged on the auxiliary frame 40104. When the battery cell moves to the auxiliary part 4010, the pushing cylinder 40103 will drive the two-way cylinder 40102 and the lifting clamping claw 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 reset the battery cell to the placement rack 4012. The flipping piece 405 is also provided with a corresponding alignment piece 404 fixed on the supporting base 402. The alignment piece 404 includes an alignment frame 4041 fixed on the supporting base 402. An alignment cylinder 4042 is fixed on the top of the alignment frame 4041. The alignment cylinder 4042 is connected to a pushing block 4043 through an alignment spring 4044. The pushing block 4043 can press the battery cell clamped by the two positioning claws 4052 under the push of the alignment cylinder 4042 to further accurately position the battery cell and the placement rack 4012.The glue-applying component 403 includes a loading rack 4031 that is distributed vertically with the conveyor belt 4011 and is arranged on the supporting base 402. The loading rack 4031 can be vertically extended and retracted and can be cyclically displaced in the vertical direction toward the conveyor belt 4011. The bottom of the vertical extension end of the loading rack 4031 corresponds to a plurality of glue storage racks 4032 fixed on the supporting 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 supporting base 402, and can store multiple films to facilitate the adsorption of the adsorption rack 4033 set at the vertical extension end of the loading rack 4031, and are placed on the film tearing platform provided on the supporting base 402 as the loading rack 4031 moves. The film-tearing platform corresponds to a glue-tearing jaw 4036 driven by a film-tearing rack mounted on the supporting base 402. The glue-tearing jaw 4036 can cooperate with the film-tearing rack to tear off the release paper film on one side of the corresponding film. When the glue-tearing jaw 4036 is released, a waste bin 4034 corresponding to the film-tearing displacement range of the glue-tearing jaw 4036 and mounted on the supporting base 402 collects the torn release paper film, thereby facilitating subsequent processing by the operator. Specifically, how the loading rack 4031 drives the adsorption rack 4033 and the film to correspond to the glue-tearing jaw 4036 to complete the glue-tearing operation is achieved by means of a sensor mounted on the supporting base 402 and corresponding to the glue-tearing jaw 4036, in conjunction with a corresponding electronic control system. The type of sensor and electronic control system used, and how the sensor and electronic control system cooperate to achieve the glue-tearing operation, should all be understood as prior art. After the film is peeled, the adhesive-applying robot 4035 absorbs the peeled film and places it onto the battery cell, where it is positioned by the auxiliary component 4010. After the film is applied to the battery cell and the auxiliary component 4010 and alignment component 404 align the wires, it passes through the rolling component 406, which is distributed along the conveyor belt 4011 and fixed to the supporting base 402. The rolling component 406 rolls on the unpeeled side of the film's release paper or the side of the protective adhesive that is not protected by adhesive, thereby improving the stability and smoothness of the film's adhesion to the battery cell, ensuring a stable bond between the film and the battery cell. The opening and closing cylinder 4055 and the two positioning claws 4052 are arranged in two sets, which can improve the efficiency of positioning and flipping the battery cell. The rolling member 406 includes a rolling frame 4061 fixed on the supporting base 402. The rolling frame 4061 drives a rolling wheel 4062 to roll the film to improve the bonding stability between the film and the battery cell.

[0071] After the adhesive is applied to one side of the multiple cells in the middle of the soft-pack battery and the side of the cells at the edge facing the center of the multiple cells, and the protective adhesive is applied to the outer sides of the two outermost cells of the soft-pack battery, the untorn release paper film on the film will be removed, the glue quality will be inspected, the cell tabs will be squeezed and flattened, and the wire position will be leveled. The peeling unit 407 includes a peeling frame 4071 fixed to the carrier base 402. The peeling frame 4071 is driven by a finger cylinder 4072 to remove the untorn release paper protective film from the film under the drive of the peeling frame 4071. The observation unit 408 includes an observation frame 4081 fixed on the supporting base 402. The observation frame 4081 is provided above the conveyor belt 4011 and is fixed with an observation head 4082. The observation head 4082 is a camera structure that can capture the adhesive bonding status on the battery cell to observe the adhesive bonding quality. The leveling unit 409 includes two leveling frames 4091 fixed on the supporting base 402. The two leveling frames 4091 are arranged at opposite ends corresponding to the conveyor belt 4011. The two leveling frames 4091 are fixed at opposite ends with a pressing cylinder 4092 and a lower clamping head 4094. The upper clamping head 4093 is provided at the movable end of the pressing cylinder 4092 facing the lower clamping head 4094. The upper clamping head 4093 and the lower clamping head 4094 can allow the tab of the battery cell to pass between them. When the pressing cylinder 4092 drives the upper clamping head 4093 to press, the tab of the battery cell is leveled. Finally, the auxiliary component 4010 can be used for auxiliary alignment, so that the subsequent stacking assembly 5 can stack the multiple battery cells one by one and bond the multiple battery cells together.

[0072] The inspection component 501 can inspect the tabs of the battery cells after gluing and whether the glue extends beyond the edge of the battery cells. The inspection component 501 includes a carrier 5013 located at the end of the conveyor belt 4011 corresponding to the carrier base 402. The carrier 5013 is equipped with a light-adding plate 5011 at the position corresponding to the tabs of the battery cells. The light-adding plate 5011 is a square lampshade with a light source inside. It is used to position the battery cells by supporting the tabs to prevent the adhesive from sticking. The carrier 5013 is equipped with an observation head 5012 at the top of the light-adding plate 5011. The observation head 5012 can inspect the integrity of the tabs of the battery cells and whether the glue extends beyond the edge of the cell and covers part of the tabs. After inspection, the battery cells can be grasped by the stacking robot 502 in conjunction with the corresponding suction member 504 and transported to the stacking member 505 for stacking. The suction member 504 on the stacking robot 502 is provided with anti-sticking material to clamp and place the battery cells with glue. If the inspection unit 501 detects a tab breakage, damage, or misalignment of the adhesive, the corresponding battery cell will be placed in the buffer area 503. The corresponding qualified battery cells, which were previously placed in the buffer area 503, will be grabbed from the buffer area 503 and stacked in the stacking unit 505. The stacking unit 505 includes a rotating table 5054. Two storage racks 5051 are symmetrically arranged at the edge of the rotating disk of the rotating table 5054. The storage racks 5051 are rectangular frames fixed to the rotating disk with the top corners constrained to facilitate the stacking robot 502 to place the inspected battery cells. The stacking unit 5052 is located on the side of the storage rack 5051 facing the center of the rotating disk. A pressure plate 5053 is installed on the top of the stacking rack 5052. After all the battery cells of a battery are placed in the storage rack 5051, the stacking rack 5052 is driven by the stacking rack 5052 to press the top cells together, making all the battery cells more firmly bonded. Two detection members 501 and two stacking robot arms 502 are provided to cooperate with the two storage racks 5051 provided on the rotating platform 5054 to improve the efficiency of battery cell stacking. After the battery cell stacking is completed, the turntable 5054 will rotate to transfer the internally controlled storage rack 5051 to the working range of the stacking robot 502. At the same time, the pressure cover plate 5053 of the other storage rack 5051 will be driven by the stacking row rack 5052 to separate and move it to the working range of the transfer robot 507. Then the transfer robot 507 will grab and transfer the stacked battery cells to the clamping tray 705 provided on the transport part 6. At the same time, the opening component 506 provided on the transport part 6 row is used to open the clamping tray 705 so that the transfer robot 507 can put the stacked battery cells in. Then the transmission part 401 will transport the clamping tray 705 in the open state with stacked battery cells inside to the assembly station 8 to install the busbar and close the clamping tray 705. Next, the transport part 6 will transport the clamping tray 705 with the battery cells and busbar in the closed state to the bending component 7 for bending.The models of the stacking robot 502, the rotating table 5054, the transfer robot 507, the observation head 4082 and the observation head 5012 and how to achieve collaborative work through electronic control equipment should be understood as existing technologies.

[0073] The opening component 506 includes a supporting member arranged on the transmission member 401 and a vertical telescopic member arranged on the supporting member. The vertical telescopic member can drive the longitudinal telescopic member connected to the vertical telescopic member. The longitudinal telescopic member is provided with a driving member, and the driving member can dock with the screw included in the tray. Specifically, the driving member is docked with the rotating disk provided at the end of the screw. After debugging, the operator can automatically control the docking of the driving member and the rotating disk, and drive the screw to rotate forward and reverse to open or close the clamping structure to release or clamp the battery assembly for processing the battery assembly.

[0074] The supporting member includes a gantry fixed by a base plate, and the gantry is provided with two symmetrical reinforcement beams to improve the structural stability of the gantry. The outer side of the gantry is symmetrically provided with a fourth supporting plate included in the two vertical telescopic members, and the two fourth supporting plates are fixed with telescopic cylinders. The telescopic ends of the two telescopic cylinders are arranged toward the base plate, and the telescopic ends of the two telescopic cylinders are respectively fixedly connected to the two ends of the displacement frame in the length direction to drive the displacement frame to vertically move under the support of the gantry. The gantry is provided with a slide rail that slides with the displacement frame to ensure the stability of the displacement frame. The displacement frame is fixed with a drive plate included in the longitudinal telescopic member, and a drive motor is fixed on the drive plate. A control screw is provided on the output shaft of the drive motor, and the control screw is threadedly connected to the moving plate, and the moving plate slides with the auxiliary guide rail provided on the drive plate. The moving plate is fixed with a control motor included in the driving member, and a matching disk is fixed on the output shaft of the control motor. A plurality of docking posts are evenly provided on the matching disk. The plurality of docking posts can dock with the docking holes provided on the rotating disk to drive the screw to rotate forward and reverse. A locator is fixedly provided at the docking post corresponding to the movable plate. Specifically, the locator is a laser depth sounder, which can cooperate with the electromechanical system to determine the moving position of the movable plate, so that the docking post and the docking hole can be stably docked and maintain the relative position of the docking post and the docking hole. The circular ring formed by the multiple docking posts docks with the multiple docking holes opened in a ring on the rotating disk, which makes it convenient for the operator to adjust the docking. The locator, control motor, drive motor and telescopic cylinder can all be controlled by the electromechanical system. Specifically, how the electromechanical system is set up, how it is controlled and how it is debugged and applied should be understood as existing technology, so that the operator can control it after debugging. The control motor and the drive motor are both forward and reverse stepper motors, which are convenient for the electromechanical system to control.

[0075] The clamping tray 705 has a rectangular base plate with guide rollers at the four corners, and a raised frame, a clamping assembly and a positioning assembly are provided on the base plate. The clamping assembly is located in the width direction of the raised frame, while the positioning assembly is located in the length direction of the raised frame. A placement plate is fixedly provided on the top of the raised frame, which can carry battery assemblies, including soft-pack batteries, and cooperate with the clamping assembly to clamp and position the soft-pack batteries. The clamping assembly includes a fixed clamping claw and a movable clamping claw. The fixed clamping claw is fixed to the base plate, and two adjustment slides are provided at the bottom of the movable clamping claw, and the adjustment slide slides with the auxiliary slide rail on the base plate. A control screw threadedly connected to the movable clamping claw is provided between the two adjustment slides. 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 batteries in the battery assembly during the process of the movable clamping claw and the fixed clamping claw clamping the battery assembly. The control screw can control the displacement of the movable clamping claw, making the spacing between the movable clamping claw and the fixed clamping claw convenient for the operator to operate. The end of the control screw that passes through the movable clamping claw and the corresponding bearing seat is fixed with a docking wheel. The docking wheel can cooperate with the corresponding opening component 506 to assist the operator in mechanically adjusting the position of the movable clamping claw. The positioning assembly includes a positioning plate provided on one side of the placement plate in the longitudinal direction, and the positioning plate is vertically slidably provided on the bottom plate. Specifically, the positioning plate is fixed with a slide bar on both sides along the width direction of the placement plate, and the slide bar slides on a slide rail seat fixed to the bottom plate. The positioning plate is provided with an adjustment waist groove, and the adjustment waist groove is connected to multiple plug-in blocks by screws, so that the operator can adjust the position of the plug-in block according to different soft-pack battery processing conditions. The plug-in block can be inserted between the busbar and the soft-pack battery cell to determine the spacing between the busbar and the soft-pack battery cell and align the length direction of the soft-pack battery cell to the designed position, while ensuring that the tabs that pass through the busbar and are bent are in stable contact with the busbar. The plug-in block cooperates with the stabilizing block fixed on the top surface of the positioning plate to form a clamping area to hold the manifold in place. A power slot is located at the center of the positioning plate. The slot is tilted, and a power column slides within it. Specifically, a wear-resistant wheel rotates on the outside of the power column to reduce friction as it slides within the slot, allowing it to slide easily within the slot. A pusher slide is fixedly connected to the power column, which slides on a support rail on the bottom plate and is equipped with a tightening stud. During use, the operator can drive the pusher slide to move the power column and wear-resistant wheel within the slot. The tilted slot then cooperates with the positioning plate to stabilize its vertical displacement, supported by the slide bar and rail seat. When the positioning plate moves vertically upward, the plug-in block first inserts between the manifold and the soft-pack battery cells, then guides the soft-pack battery cells and the manifold to maintain a corresponding spacing and move the soft-pack battery cells to the designed position. As the positioning plate gradually rises, the manifold will enter the clamping area to further position the manifold.After the positioning plate is moved into position, the operator rotates the tightening screws, pressing them against the base plate to stabilize the positioning plate and maintain stability during subsequent processing of the pouch cells. After repeatedly manipulating the two positioning components, the two busbars and multiple pouch cells are positioned at the designed locations on the placement plate. Finally, the operator manipulates the clamping assembly to clamp and position the multiple pouch cells for subsequent battery assembly processing.

[0076] The cover plate includes a pressure plate for covering the top of multiple soft-pack battery cells. The pressure plate is provided with a snap-in hole, which can be snapped with the snap-in joints fixed on the top of the movable clamping claw and the fixed clamping claw to locate its own position. At the same time, the snap-in hole can also limit the position of the fixed clamping claw and the movable clamping claw to maintain the stability of the fixed clamping claw and the movable clamping claw in positioning multiple soft-pack battery cells. A plurality of limiting blocks and a plurality of auxiliary blocks are provided on both sides of the length direction of the cover plate. A positioning area for clamping the busbar can be formed between the auxiliary block and the limiting block, and the positioning area can cooperate with the clamping area to further stabilize the relative position of the busbar. The auxiliary block is connected to the matching waist groove provided on the pressure plate by screws to facilitate the operator to adjust the position of the auxiliary block to adapt to the pole ear of the soft-pack battery cell.

[0077] The opening component 506 includes a docking column that can cooperate with the docking wheel included in the clamping tray 705. The docking wheel can drive the control screw to rotate. After that, the operator can use the movable clamping claw to move the placement plate to expose enough space, and then the operator can place the corresponding number of soft-pack battery cells on the placement plate. Next, the operator can push the two positioning components in turn to stably position the busbar connected to the soft-pack battery cell tabs, and at the same time stably place the multiple soft-pack battery cells at the designed position of the placement plate. After the multiple soft-pack battery cells are clamped and positioned, the cover plate can be placed on the top of the multiple soft-pack battery cells, and the clamping hole can be clamped with the clamping joint provided on the top of the fixed clamping claw and the movable clamping claw to further stabilize the relative position of the fixed clamping claw and the movable clamping claw, that is, to stabilize the clamping of the multiple soft-pack battery cells.

[0078] like Figure 15As shown, the bending assembly 7 comprises a fourth support frame 701 with a transport member 6 positioned at its center, and a work frame 702 mounted on the fourth support frame 701. The work frame 702 is sequentially provided with bending members 706 and flattening members 708 along the transport direction of the transport member 6. Furthermore, the work frame 702 is provided with a measuring assembly 703 for determining the position of a clamping tray 705 being transported by the transport member 6. Once the measuring assembly 703 detects the clamping tray 705 being transported by the transport member 6, two lifting assemblies 704 are activated to stably lift the corresponding clamping tray 705 upward. Specifically, the lifting assembly 704 comprises a lifting cylinder mounted within the fourth support frame 701 and a docking plate mounted at the movable end of the lifting cylinder. The docking plate engages with the bottom surface of the clamping tray 705, thereby stably pushing the corresponding clamping tray 705 upward, aligning the tabs of the multiple battery cells held by the clamping tray 705 with the bending members 706 or flattening members 708 for processing. The bending member 706 and the flattening assembly 708 can perform bending and flattening operations on the tabs of multiple battery cells in sequence.

[0079] The transport member 6 is a structure composed of two spaced sprockets driving two corresponding chains, which can then connect the two sides of the bottom of the clamping tray 705, and then stably drive the clamping tray 705 to move, thereby improving the processing efficiency of the multiple battery cells clamped by the clamping tray 705. Figure 16As shown, the bending member 706 includes two bending rows symmetrically arranged on the working frame 702, and the bending rows include a first row frame 7061 arranged on the working frame 702. A space for multiple battery cells to pass through is formed between the two first row frames 7061. The first row frame 7061 drives the second row frame 7062. The second row frame 7062 is provided with a connecting frame 7063. A third supporting plate 7064 is fixed to the bottom of the connecting frame 7063. A bending plate 7066 is provided on the third supporting plate 7064. The bending plate 7066 can bend the pole ears of the multiple battery cells lifted by the lifting component 704 under the drive of the first row frame 7061 and the second row frame 7062, and can also bend multiple pole ears of multiple battery cells in different positions. Specifically, the second rack 7062 drives the bending plate 7066 toward the tab, and the first rack 7061 drives the second rack 7062 to cause the bending plate 7066 to press the tab toward the corresponding side, thereby bending the tab in the desired direction to accommodate the corresponding multiple battery cell assembly formulas, which are specific tab positive and negative connection methods. During the bending process, rollers provided at the ends of the bending plate 7066 are used to reduce the friction between the bending plate 7066 and the tab, thereby reducing damage to the tab surface caused by the bending plate 7066 and reducing the probability of subsequent contact with the tab, thereby reducing the probability of the quality of the transmitted power being reduced. A limit frame is fixedly provided on the third supporting plate 7064. The bending plate 7066 is movably connected to the limit frame via a force relief spring and a limit post. When the bending plate 7066 pushes the tab to bend, the force relief spring will slow down the hard push of the bending plate 7066 in bending the tab, thereby reducing the probability of the tab being broken or damaged during the hard bending process. Two bending plates 7066 and two limiting frames are provided, and the spacing between the two bending plates 7066 is equal to the spacing between the two tabs of multiple battery cells, so that the two tabs of multiple battery cells can be bent at the same time, that is, the efficiency of bending the tabs of multiple battery cells is improved. The two limiting frames are slidably matched with impact members 7065 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 supporting plate 7064. After the bending plates 7066 bend the tabs into place, the impact members 7065 are driven by the bending cylinder 7067 to impact the tabs to strengthen the bending and flatness of the bent tabs.

[0080] like Figure 17As shown, the leveling assembly 708 includes leveling racks symmetrically arranged on both sides of the multiple battery cells with tabs, and the leveling racks include a third rack 7081 and a fourth rack 7082 arranged on the work frame 702. A space for multiple battery cells to pass through is formed between the two third racks 7081. A vertical telescopic rack 7083 is provided on the fourth rack 7082. The vertical telescopic rack 7083 is connected to a supporting block 7086 perpendicular thereto. The supporting block 7086 is equipped with an auxiliary plate 7084, and the end of the auxiliary plate 7084 facing the tab is provided with a roller 7085. Specifically, the third rack 7081 can drive the fourth rack 7082 to move, and then drive the vertical telescopic rack 7083, the supporting block 7086, the auxiliary plate 7084 and the roller 7085 to move to correspond to the tabs at different positions of the multiple battery cells. The fourth row frame 7082 can drive the vertical telescopic frame 7083 to approach the tab position, and then the roller 7085 can be used to press the bent tab through the support block 7086 and the auxiliary plate 7084, which can further strengthen the bent tab state and further keep the tab bent flat. The support block 7086 and the auxiliary plate 7084 are slidably matched, and an auxiliary spring is provided between the auxiliary plate 7084 and the end surface of the movable end of the vertical telescopic frame 7083 to accommodate the situation where the fourth row frame 7082 moves too much. At the same time, it can also change the hard rolling to a soft rolling flattening to a certain extent, thereby reducing the stress concentration caused by the hard top pressure on the tab to a certain extent, or reducing the tab breakage caused by the hard top pressure on the tab.

[0081] like Figure 16 and Figure 17As shown, the work frame 702 is provided with a pressing assembly 707 at the corresponding bending parts 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 parts 706 and the flattening assembly 708 processing the multiple battery cell tabs, that is, it can reduce the displacement of the multiple battery cells during the processing of the multiple battery cell tabs to ensure the bending quality of the multiple battery cell tabs. The pressing assembly 707 includes a pressing frame 7071 fixed on the work frame 702, and 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 fixed at the center of the pressing frame 7071, and a movable plate is fixed at the telescopic end of the pressing cylinder 7072. The movable plate is elastically connected to the pressing plate on the side facing the multiple battery cells. After the lifting assembly 704 moves the clamping tray 705 and multiple battery cells to the appropriate height, the pressing cylinder 7072 will drive the movable plate and the pressing plate to press the multiple battery cells, and then it can cooperate with the lifting assembly 704 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 posts are symmetrically fixed on the side surface of the movable plate facing the pressing frame 7071. The two sliding posts are respectively slidably matched with two sliding sleeves provided on the pressing frame 7071 to maintain the stability of the vertical movement of the movable plate, that is, to maintain the accuracy and stability of the clamping and positioning of multiple battery cells. Movable columns are slidably provided at the four corners of the movable plate away from the pressing frame 7071, and buffer springs are connected to the outer surface of the movable columns. The setting of the buffer springs can reduce the vibration of the lifting assembly 704 and the pressing cylinder 7072 during the extension and contraction process when the pressing plate presses multiple battery cells. At the same time, it can also reduce the damage to the multiple battery cells caused by excessive pressure from the lifting assembly 704 and the pressing cylinder 7072. Connecting plates 7073 are fixedly provided on both sides of the pressing plate corresponding to the multiple battery cells with tabs. A detection frame 7074 is fixedly provided on the side of the connecting plate 7073 corresponding to the multiple battery cells with tabs. A position finder 7075 is provided on the detection frame 7074 corresponding to the multiple tabs on one side. Specifically, the position finder 7075 is divided into an infrared receiving end and an infrared emitting end, and the infrared receiving end and the infrared emitting end are arranged along the distribution direction of the multiple tabs on one side. During the bending and flattening process, if the tab is uneven or not bent properly, the infrared light emitted by the infrared emitting end of the positioner 7075 will not be received by the infrared receiving end. Corresponding feedback can then be provided to control the bending member 706 and the flattening assembly 708 to repeat the 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 provided on the corresponding flattening assembly 708 is closer to the corresponding tab than the positioner 7075 provided on the corresponding bending member 706, thereby further strengthening the stability of the tab's bent connection.Specifically, the detection frame 7074 is U-shaped, and the concave part of the detection frame 7074 can cover the pole ears on the corresponding sides of multiple battery cells, so that the infrared receiving end and the infrared transmitting end are set along the distribution direction of multiple pole ears on one side to perform detection operations on multiple pole ears.

[0082] The first rack 7061, the second rack 7062, the third rack 7081, and the fourth rack 7081 are all screw-nut substructures driven by forward and reverse stepper motors. The first rack 7061 and the third rack 7081 are arranged along the transmission direction of the transport member 6, and the second rack 7062 and the fourth rack 7082 are arranged along the sides of the tabs of the multiple battery cells. Specifically, the specific models, operating methods, and control methods of the first rack 7061, the second rack 7062, the third rack 7081, the third rack 7081, the vertical telescopic frame 7083, the measuring assembly 703, the position finder 7075, the bending cylinder 7067, the transport member 6, the lifting assembly 704, and the pressing cylinder 7072 should all be understood as common knowledge by those skilled in the art.

[0083] A pretreatment method for a soft-pack battery before welding processing comprises the following steps:

[0084] S1, the battery cell conveyor 1 is used to grab the battery cell through the loading assembly 2 and stably placed in the tab processing assembly 3 for cutting, trimming and testing;

[0085] S2. The tested battery cells are transferred to the glue assembly 4 by the transfer robot 9. During the transfer process, the faulty battery cells are replaced by the buffer area 503 within the working range of the transfer robot 9, and the good battery cells are transferred to the glue assembly 4.

[0086] S3, the glue-applying component 4 applies glue to the transferred battery cells and performs inspection. After the inspection, the tab status is inspected by the stacking component 5, and the tabs are grabbed and transferred for stacking. If a fault occurs during the stacking process, it is replaced in the corresponding buffer area 503 to stack the good battery cells. The stacked battery cells are transferred to the clamping tray 705 opened by the opening component 506 set on the transmission member 401 for subsequent transmission;

[0087] S4, the clamping tray 705 is transported to the assembly station 8 through the transmission member 401 to install the manifold and close it;

[0088] S5. The transport assembly transports the closed clamping tray 705 and the stacked cells to the bending assembly 7 for bending and testing, thereby completing the pre-processing of the cells.

[0089] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various variations or modifications within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A pre-treatment device for soft-pack battery welding, characterized by: It has a loading assembly (2), a tab processing assembly (3), a gluing assembly (4), a stacking assembly (5), and a bending assembly (7) that can sequentially process and complete pre-processing of the battery cell. The tab processing assembly (3) and the gluing assembly (4) are connected via a transfer robot (9), and the stacking assembly (5) is connected via a transmission member (401) to transfer the battery cell. The tab processing assembly (3), the glue sticking assembly (4), the stacking assembly (5) and the bending assembly (7) are all provided with detection structures to promptly detect processing errors in various links during the pre-processing of the battery cell; The detection structure includes an electrode test piece (301) and a size inspection piece (306) in the tab processing assembly (3), an observation piece (408) in the glue sticking assembly (4), a detection piece (501) in the stacking assembly (5), and a position measuring instrument (7075) in the bending assembly (7); The tab processing assembly (3) includes a support base (307), a transmission member (401) capable of transmitting the battery cell is provided on the support base (307), and a cutting member (305) is provided on the support base (307) along the transmission direction of the transmission member (401), and the cutting member (305) corresponds to the electrode test member (301) and the size inspection member (306) on both sides along the transmission direction of the battery cell; The electrode test piece (301) comprises a first bracket (3051) fixedly arranged on a support base (307); the first bracket (3051) can allow a transmission piece (401) to pass through; a detector (3016) is provided on the first bracket (3051); the detector (3016) is connected to a detection head (3014) corresponding to a battery cell tab; the detection head (3014) is driven to vertically displace by a first cylinder (3012) arranged on the first bracket (3051); and the detection head (3014) corresponds to a support plate (3015) arranged on the first bracket (3051) and capable of supporting the battery cell tab.

2. The pre-treatment equipment for soft-pack battery welding according to claim 1, characterized in that: The transfer robot arm (9) and the stacking robot arm (502) included in the stacking assembly (5) are both provided with a buffer area (503) within their working ranges. The buffer area (503) can replace corresponding pre-processed qualified battery cells.

3. The pre-treatment equipment for soft-pack battery welding according to claim 1, characterized in that: The size inspection member (306) comprises two inspection racks (3061) fixedly mounted on a support base (307). The two inspection racks (3061) are arranged corresponding to the two tabs of the battery cell and are used for the transmission member (401) to pass through. An inspection head (3062) is provided on the top of the inspection rack (3061) to photograph and inspect the length of the tabs.

4. The pre-treatment equipment for soft-pack battery welding according to claim 1, characterized in that: The glue sticking assembly (4) comprises a supporting base (402), on which another transmission member (401) for transmitting the electric core is provided, and the supporting base (402) is provided with two glue-applying members (403) and a glue-tearing member (407) in sequence along the direction of transmitting the electric core, and an observation member (408) is provided on the side of the glue-tearing member (407) facing away from the glue-applying member (403).

5. The pre-treatment equipment for soft-pack battery before welding according to claim 4, characterized in that: The observation member (408) includes an observation frame (4081) provided on the supporting base (402), the observation frame (4081) can allow the corresponding transmission member (401) to pass through, and an observation head (4082) is provided at the center of the observation member (408) corresponding to the transmission member (401) to photograph the position of the film on the battery cell.

6. The pre-treatment equipment for soft-pack battery before welding according to claim 1, characterized in that: The bending assembly (7) includes a fourth support frame (701) that carries the transmission member (401), a working frame (702) is provided on the fourth support frame (701), and the working frame (702) is provided with bending members (706) and flattening members (708) in sequence along the transmission direction of the transmission member (401) to bend and trim the stacked battery cells transmitted by the transmission member (401), and the working frame (702) and the fourth support frame (701) correspond to the bending members (706) and the flattening members (708), and a lifting member (704) and a pressing member (707) are provided in sequence at the position where the transmission member (401) passes, so as to locate the stacked battery cells and perform the battery cell tab bending process.

7. The pre-treatment equipment for soft-pack battery before welding according to claim 6, characterized in that: The pressing assembly (707) comprises a pressing frame (7071) arranged on a working frame (702), a vertically retractable pressing cylinder (7072) being provided on the pressing frame (7071), a pressing plate for pressing the stacked battery cells being provided on the pressing cylinder (7072), and a detection frame (7074) being connected to both sides of the pressing plate corresponding to the battery cell tabs via connecting plates (7073), and two position measuring instruments (7075) being provided on the detection frame (7074) for detecting whether the tabs are bent or protruding.

8. A pretreatment method for soft-pack battery before welding, characterized in that: The following steps are performed using the pre-treatment equipment for soft-pack battery welding according to any one of claims 1 to 7: S1, using the tab processing assembly (3) to cut, trim and inspect the tab, and after inspection, transfer the tab by the transfer robot arm (9) and use the corresponding buffer area (503) to replace the damaged battery cell; S2, using the gluing assembly (4) to glue and inspect the battery cells transferred by the transfer robot arm (9); S3, using the stacking assembly (5) to inspect and grab the battery cells that have passed step S2, replacing damaged battery cells through the buffer area (503) provided in the stacking assembly (5) during the grabbing process, and stacking the good battery cells that have been glued and transferring them to the transmission member (401) for transmission; S4. Bend the tab using the bending assembly (7) corresponding to the transmission member (401) and detect the bending condition.

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