Tab trimming equipment and method for soft package battery

Abstract

The invention discloses pole lug trimming equipment and method for a soft package battery, and relates to the technical field of battery core pole lug trimming, the pole lug trimming equipment comprises a feeding device and a pole lug trimming device, the pole lug trimming device comprises a conveying mechanism arranged on a machine tool and used for conveying a battery core; an electrode detection mechanism, an adjusting mechanism, an overturning mechanism, a primary flattening mechanism and a laser cutting mechanism are sequentially arranged in the conveying direction of a battery cell, wherein the electrode detection mechanism is used for detecting the electrode of a battery cell tab; the adjusting mechanism is used for adjusting the electrode direction of the battery cell tab; the overturning mechanism is used for overturning the battery cell; the secondary flattening mechanism is used for flattening the tabs; the size detection mechanism is used for detecting the tabs; according to the invention, automatic continuous operation of tab direction adjustment, different-size cutting and other procedures is realized, battery cells with different requirements are processed at the same time, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of trimming of battery tab, and specifically to a tab trimming device and method for soft-pack batteries. Background Art

[0002] With the rapid development of new energy technologies, soft-pack batteries have become a research hotspot due to their advantages such as high energy density and high safety. During the production of soft-pack batteries, multiple battery cells need to be stacked and combined to form a battery module. Due to the requirements of the battery cell formula in the battery module, the processing requirements for each tab in the battery module are different. For example, the cutting size, position, etc. of each battery cell. Therefore, it is necessary to perform customized processing on the battery cells to meet the overall performance requirements.

[0003] In the prior art, it is often necessary to configure multiple production lines to process battery cells of different specifications respectively. After the processing is completed, the battery cells produced by the multiple production lines are stacked and assembled together. This production method has a high production cost and low production efficiency. Summary of the Invention

[0004] In order to solve the problems of high production cost and low production efficiency in the prior art for processing battery cells, the present invention provides a tab trimming device and method for soft-pack batteries, which realizes automatic continuous operation of processes such as tab direction adjustment and cutting of different sizes, processes battery cells with different requirements simultaneously, and reduces the production cost and improves the production efficiency.

[0005] To achieve the above object, the specific solution adopted by the present invention is: a tab trimming device for soft-pack batteries, including a feeding device and a tab trimming device. The tab trimming device includes a transmission mechanism arranged on a machine tool and used for conveying battery cells, and an electrode detection mechanism for detecting the electrodes of the battery cell tabs, an adjustment mechanism for adjusting the direction of the battery cell tab electrodes, a flipping mechanism for flipping the battery cells, a primary flattening mechanism for flattening the tabs, a laser cutting mechanism for cutting the tabs, a secondary flattening mechanism for flattening the tabs, and a size detection mechanism for detecting the tabs are sequentially arranged along the conveying direction of the battery cells;

[0006] The electrode detection mechanism includes a detector and a plurality of detection heads connected to the detector, and the detection heads can be in contact with the battery cell tabs;

[0007] The adjustment mechanism includes a first suction cup for grasping the battery cell, and the first suction cup performs vertical reciprocating motion through a first driving component and rotates through a second driving component;

[0008] The flipping mechanism includes a barcode scanner and a clamping component for clamping the battery cell, and the clamping component performs vertical reciprocating motion through a third driving component and flips through a fourth driving component;

[0009] Both the first flattening mechanism and the second flattening mechanism include multiple groups of upper clamping blocks and lower clamping blocks located on both sides of the transmission mechanism. A flattening area is formed between the upper clamping block and the lower clamping block in each group for the tabs of newly assembled battery cells to enter.

[0010] The laser cutting mechanism includes a first camera, a laser, and a first robotic arm for driving the laser and the first camera. The first camera captures an image of the tab and transmits it to the control system. The control system identifies the image and determines the initial position of the laser.

[0011] The dimension detection mechanism includes a second camera for capturing an image of the tab and transmitting the captured tab image to the control system.

[0012] As an optimized solution for the above-mentioned tab trimming device for soft-pack batteries: The feeding device includes a material frame for holding battery cells and several adjustment components arranged on the distance adjustment table for adjusting the distance between battery cells. The adjustment component includes two relatively arranged first carrier plates that can move towards or away from each other. The battery cells in the material frame are transferred to the first carrier plates by the transfer component, and the battery cells with adjusted distances on the first carrier plates are transferred to the transmission mechanism by the feeding unit.

[0013] As another optimized solution for the above-mentioned tab trimming device for soft-pack batteries: The transfer component includes a transfer plate and a second robotic arm for driving the transfer plate. Multiple groups of second suction cups for adsorbing battery cells are arranged on the transfer plate, and each group of second suction cups corresponds to one battery cell.

[0014] As another optimized solution for the above-mentioned tab trimming device for soft-pack batteries: The feeding unit includes second connecting plates corresponding to the carrier plates one by one. Multiple third suction cups for adsorbing battery cells are fixedly arranged on the second connecting plates, and the second connecting plates can perform horizontal reciprocating motion and vertical reciprocating motion.

[0015] As another optimized solution for the above-mentioned tab trimming device for soft-pack batteries: The transmission mechanism includes a conveyor belt. Multiple loading units are fixedly arranged on the conveyor belt along its length direction. The loading unit includes two symmetrically arranged second carrier plates, and limit members are arranged at both ends of each second carrier plate. The four limit members enclose an accommodation space for holding battery cells.

[0016] As another optimized solution for the above-mentioned tab trimming device for soft-pack batteries: The detector is fixedly installed on the machine tool through a first support frame. A first cylinder for driving the detection head to contact or separate from the battery cell is arranged on the first support frame.

[0017] As another optimization solution for the above-mentioned ear trimming device for soft-pack batteries: The first driving component includes a second cylinder, and the second cylinder is installed on the machine tool through a second support frame; the second driving component includes a first rotary cylinder fixedly installed at the end of the piston of the second cylinder, and the first rotary cylinder is drivingly connected to the first suction cup.

[0018] As another optimization solution for the above-mentioned ear trimming device for soft-pack batteries: The clamping component includes a plurality of clamping units, and each clamping unit includes two jaws that can move towards and away from each other. A clamping area is formed between the two jaws, and when the two jaws move towards each other, the edge of the battery cell abuts against the jaws.

[0019] As another optimization solution for the above-mentioned ear trimming device for soft-pack batteries: A support block and a pressing plate parallel to the conveyor belt are arranged on the machine tool. The pressing plate is driven by a third cylinder to move vertically in a reciprocating manner, and during the vertical movement of the pressing plate, the ear can be pressed tightly against the support block, and a processing hole for exposing the ear is opened on the pressing plate.

[0020] An ear trimming method for soft-pack batteries. The feeding device places the battery cells at intervals on the transmission mechanism. The transmission mechanism transports the battery cells to the electrode detection mechanism. The electrode detection mechanism detects the electrode direction thereof and transmits the detection data to the control system; the transmission mechanism continues to transport it to the adjustment mechanism. If the electrode direction of the battery cell is correct, the adjustment mechanism does not work. If the electrode direction of the battery cell is incorrect, the first suction cup fixes the battery cell and rotates the battery cell by 180° to adjust the electrode direction of the battery cell; the transmission mechanism continues to transport it to the flipping mechanism. If the barcode scanner does not scan the identifier on the surface of the battery cell, the flipping mechanism flips the battery cell by 180°, then the barcode scanner scans the identifier and transmits it to the control system, and the control system confirms the cutting path of the battery cell; the transmission mechanism continues to transport the battery cell to the first flattening mechanism to flatten the ear. The flattened battery cell enters the laser cutting mechanism. The first camera collects the image of the ear to confirm the initial cutting position, and the laser cuts the ear according to the cutting path; the cut battery cell is transported to the second flattening mechanism to flatten the ear, and then transported to the size detection mechanism. The second camera collects the image of the ear and transmits it to the control system. If the size of the ear of the battery cell meets the requirements, it enters the next process for processing.

[0021] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a trimming device for tab of soft-pack battery. The battery cell is conveyed by a conveying mechanism and sequentially passes through a detection mechanism, an adjustment mechanism and a flipping mechanism for attitude adjustment. And the barcode scanner of the flipping mechanism scans the identification on the battery cell and transmits it to the control system. The battery cell is conveyed to the laser cutting mechanism. The control system confirms the cutting path of the battery cell according to the identification, and at the same time confirms the initial position of the laser according to the image collected by the first camera. That is, the device can process different battery cells at the same time, and the distribution period of the battery cells is the same as the required battery cell specifications of the battery module. That is, the trimmed tabs can be stacked in sequence to form a battery module, reducing production costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the tab trimming device;

[0023] Figure 2 is a top view of the loading device;

[0024] Figure 3 is a schematic structural diagram of the loading device;

[0025] Figure 4 is Figure 3 a partial enlarged view of A in

[0026] Figure 5 is Figure 1 a partial enlarged view of C in

[0027] Figure 6 is a schematic structural diagram of the electrode detection mechanism;

[0028] Figure 7 is a schematic structural diagram of the adjustment mechanism;

[0029] Figure 8 is a schematic structural diagram of the flipping mechanism;

[0030] Figure 9 is a three-dimensional view of the flipping mechanism;

[0031] Figure 10 is a schematic structural diagram of the first flattening mechanism;

[0032] Figure 11 is a front view of the laser cutting mechanism;

[0033] Figure 12 is a schematic structural diagram of the laser cutting mechanism;

[0034] Figure 13 is Figure 1 a partial enlarged view of B in

[0035] Figure 14 isFigure 1 Partial enlarged view at location A in the middle;

[0036] Reference numerals: 1, material frame; 2, first robotic arm; 3, distance adjustment table; 4, eleventh cylinder; 5, first connecting plate; 6, spring; 7, pushing block; 8, fourth cylinder; 9, first sliding table cylinder; 10, loading unit; 11, sixth cylinder; 12, second connecting plate; 13, third suction cup; 14, first protective claw; 15, stop block; 16, protective part; 17, first support plate; 18, transfer plate; 19, second suction cup; 20, machine tool; 21, conveyor belt; 22, cushion block; 23, limiting member; 24, electrode detection mechanism; 25, adjustment mechanism; 26, flipping mechanism; 27, primary flattening mechanism; 28, laser cutting mechanism; 29, secondary flattening mechanism; 30, dimension detection mechanism; 31, first support frame; 32, first mounting plate; 33, first cylinder; 34, third connecting plate; 35, detection head; 36, support plate; 37, detector; 38, second support frame; 39, second sliding table cylinder; 40, second cylinder; 41, first rotating cylinder; 42, first rotating plate; 43, first connecting piece; 44, first suction cup; 45, seventh cylinder; 46, second protective claw; 47, second support plate; 48, eighth cylinder; 49, fourth connecting plate; 50, second rotating cylinder; 51, clamping jaw; 52, first clamping block; 53, ninth cylinder; 54, second rotating plate; 55, barcode scanner; 56, sensing piece; 57, sensor; 58, third support frame; 59, second mounting plate; 60, tenth cylinder; 61, first upper pressing block; 62, first lower pressing block; 63, first bracket; 64, third sliding table cylinder; 65, second bracket; 66, fourth sliding table cylinder; 67, laser; 68, exhaust pipe; 69, pressing plate; 70, support block; 71, blanking pipe; 72, third cylinder; 73, third bracket; 74, fifth connecting plate; 75, first camera; 76, processing hole; 77, blanking hole; 78, avoidance groove; 79, sliding plate; 80, fourth support frame; 81, sixth connecting plate; 82, third mounting plate; 83, thirteenth cylinder; 84, second upper pressing block; 85, second lower pressing block; 86, air jet nozzle; 87, fifth support frame; 88, fourth mounting plate; 89, second camera; 90, battery cell; 91, first carrier plate; 92, fifth cylinder; 93, twelfth cylinder; 94, third protective claw; 95, fifth mounting plate. Detailed implementation manners

[0037] The following further elaborates on the technical solutions of the present invention in combination with specific embodiments. For parts that are not detailedly recorded and disclosed in the following embodiments of the present invention, they should all be understood as the prior art known or should be known to those skilled in the art.

[0038] Embodiment 1

[0039] An ear trimming device for a soft-pack battery, comprising a feeding device and an ear trimming device. When the battery cell 90 is processed on the trimming device, in order to avoid contact or interference of the battery cell 90 during the conveying process, adjacent battery cells 90 need to maintain a fixed distance. Therefore, the feeding device includes a material frame 1 for containing the battery cells 90 and a number of adjustment components arranged on the distance adjustment table 3 and used to adjust the distance between the battery cells 90. As Figure 2 shown, the material frame 1 has four linearly arranged material storage areas, and the battery cells 90 in each material storage area are evenly distributed along the height, realizing the simultaneous feeding of four battery cells 90. In this embodiment, the number of adjustment components is two, and they are distributed along the width direction of the battery cell 90. One adjustment component can adjust two battery cells 90, and two adjustment components can adjust four battery cells 90 at a time, so that the distance between adjacent two of the four battery cells 90 meets the requirements for the distance between battery cells 90 in the ear trimming device.

[0040] The adjustment component includes two relatively arranged first carrier plates 91 that can move towards each other or away from each other. The battery cells 90 in the material frame 1 are transferred to the first carrier plates 91 through the transfer component, and the battery cells 90 with adjusted distance on the first carrier plates 91 are transferred to the transmission mechanism through the feeding unit 10. The first carrier plates 91 are slidably connected to the distance adjustment table 3. Two groups of first slide rails corresponding to the adjustment components are fixedly connected to the distance adjustment table 3. The number of first slide rails in each group is two, and the first slide rails in each group are distributed along the length direction of the first carrier plate 91; first sliders corresponding to the two first slide rails are fixedly connected to the first carrier plate 91, and the first sliders can slide along the slide rails. A fourth cylinder 8 for driving the two first carrier plates 91 to move towards each other and away from each other is arranged between the two first carrier plates 91. The fourth cylinder 8 is fixedly installed on the distance adjustment table 3 and is located below the first carrier plate 91. The two pistons of the fourth cylinder 8 are respectively fixedly connected to the corresponding first carrier plates 91. When the two first carrier plates 91 move towards each other, the distance between them decreases; when the two first carrier plates 91 move away from each other, the distance between them increases. Anti-deviation blocks are fixedly connected to two opposite edges of the first carrier plate 91, and the top ends of the anti-deviation blocks are higher than the upper surface of the first carrier plate 91 to limit the battery cells 90 on the first carrier plate 91 and prevent them from skewing.

[0041] The transfer component includes a transfer plate 18 and a second robotic arm for driving the transfer plate 18. The second robotic arm can drive the transfer plate 18 to move vertically and rotate. Multiple groups of second suction cups 19 for adsorbing the battery cells 90 are arranged on the transfer plate 18, and each group of second suction cups 19 corresponds to one battery cell 90. In this embodiment, the second suction cups 19 are divided into four groups, and the distance between adjacent two groups of second suction cups 19 corresponds to the distance between the battery cells 90 in the material box 1, so that one group of second suction cups 19 adsorbs one battery cell 90. The number of each group of second suction cups 19 is four and they are evenly fixed on both sides of the transfer plate 18. Specifically, two second suction cups 19 in each group are located on one side of the transfer plate 18, and the other two are located on the other side of the transfer plate 18, and the second suction cups 19 on the same side are distributed along the length direction of the transfer plate 18; the second suction cups 19 are fixedly connected to the transfer plate 18 through "L"-shaped connecting pieces, and the connection mode between the "L"-shaped connecting pieces and the transfer plate 18 is bolt connection.

[0042] The feeding unit 10 includes second connecting plates 12 corresponding to the first bearing plates 91 one by one. A plurality of third suction cups 13 for adsorbing the battery cells 90 are fixedly arranged on the second connecting plates 12. The second connecting plates 12 can perform horizontal reciprocating motion and vertical reciprocating motion. The number of the second connecting plates 12 is the same as the number of the first bearing plates 91, that is, the number of the second connecting plates 12 is four, and the distance between adjacent two second connecting plates 12 matches the distance between the battery cells 90 in the ear trimming device; four third suction cups 13 are arranged on each second connecting plate 12. The four third suction cups 13 are divided into two parts and are respectively located on both sides of the second connecting plate 12. Two third suction cups 13 on each side are fixedly connected to the second connecting plate 12 through "Z"-shaped connecting pieces.

[0043] Regarding the setting mode of the second connecting plates 12, a first sliding table cylinder 9 is arranged on the distance adjusting table 3. A first fixing plate is fixedly connected to the sliding plate of the first sliding table cylinder 9. The first fixing plate is fixedly connected to a first supporting plate 17. The second connecting plates 12 are all fixed on the first supporting plate 17, and a reinforcing plate is arranged between the first fixing plate and the first supporting plate 17 to increase the stability of the first fixing plate and the first supporting plate 17; a first fixing frame is arranged on the distance adjusting table 3. A guide rail extending along the sliding direction of the first supporting plate 17 is fixedly connected to the first fixing frame. A guide block is fixedly connected to one end of the first supporting plate 17 away from the first sliding table cylinder 9, and the guide block can slide along the guide rail. A sixth cylinder 11 for driving the second connecting plates 12 to perform vertical reciprocating motion is arranged on the first supporting plate 17. The number of the sixth cylinders 11 is the same as the number of the second connecting plates 12 and they correspond to each other one by one, that is, the piston end of the sixth cylinder 11 is fixedly connected to the corresponding second connecting plate 12.

[0044] When translating the battery cell 90 on the first bearing plate 91, the first sliding table cylinder 9 drives the first support plate 17 to slide, thereby driving the third suction cup 13 to be located above the corresponding battery cell 90. The sixth cylinder 11 drives the third suction cup 13 to move downward until it contacts and fixes the battery cell 90; the sixth cylinder 11 drives the third suction cup 13 and the battery cell 90 to rise, and then the first sliding table cylinder 9 drives the first support plate 17 to slide until the battery cell 90 is located above the conveyor belt 21 of the tab adjusting device. The third suction cup 13 moves downward to place the battery cell 90 on the conveyor belt 21 and separates from the battery cell 90, completing the feeding.

[0045] At one end of the first bearing plate 91 away from the feeding unit 10, there is a push block 7 for pushing the battery cell 90 on the first bearing plate 91. On the distance adjusting table 3, there is an eleventh cylinder 4 for pushing the push block 7 to reciprocate. Specifically, the piston end of the eleventh cylinder 4 is fixedly connected with a first connecting plate 5. The first connecting plate 5 is vertically arranged. The bottom end of the first connecting plate 5 is fixedly connected with the piston end of the eleventh cylinder 4, and the top end of the first connecting plate 5 is connected with the push block 7. Between the first connecting plate 5 and the push block 7, there are several springs 6, and the number of springs 6 is two; several connecting rods are slidably arranged on the first connecting plate 5, and the number of connecting rods corresponds to the number of springs 6 one by one. The connecting rods are cylindrical structures. One end of the connecting rod is fixedly connected with a baffle to prevent the connecting rod from falling off the first connecting plate 5, and the other end of the connecting rod passes through the first connecting plate 5 and is fixedly connected with the push block 7. The springs 6 are sleeved on the connecting rods. After adjusting the distance between the battery cells 90 on the first bearing plate 91, the eleventh cylinder 4 pushes the push block 7 towards the battery cell 90 and pushes the edge of the battery cell 90 to adjust the position of the battery cell 90 to ensure that the edges of the battery cell 90 are flush. The setting of the springs 6 plays a buffering role to prevent the push block 7 from damaging the battery cell 90.

[0046] In this embodiment, two first protective claws 14 are arranged on each second connecting plate 12. Specifically, a fifth cylinder 92 is fixedly connected to the second connecting plate 12. The fifth cylinder 92 drives the two first protective claws 14 to move towards or away from each other. The first protective claw 14 includes a fixed rod fixedly connected to the piston end of the fifth cylinder 92. A stop block 15 is fixedly connected to the lower surface of the fixed rod. A protective part 16 is vertically fixed to the end of the stop block 15 away from the fixed rod. When the first protective claws 14 move towards each other, the protective part 16 can enter below the battery cell 90, so that when the third suction cup 13 translates the battery cell 90, it plays a protective role for the battery cell 90 to prevent it from falling.

[0047] The tab trimming device includes a transmission mechanism arranged on a machine tool 20 and used to transport the battery cell 90, and an electrode detection mechanism 24 for detecting the tab electrodes of the battery cell 90, an adjustment mechanism 25 for adjusting the direction of the tab electrodes of the battery cell 90, a flipping mechanism 26 for flipping the battery cell 90, a primary flattening mechanism 27 for flattening the tabs, a laser cutting mechanism 28 for cutting the tabs, a secondary flattening mechanism 29 for flattening the tabs, and a size detection mechanism 30 for detecting the tabs are arranged in sequence along the transport direction of the battery cell 90.

[0048] The transmission mechanism includes a conveyor belt 21, and the conveyor belt 21 is fixedly provided with a plurality of load-bearing units distributed along its length direction. The load-bearing units move synchronously with the conveyor belt 21, and the battery cells 90 are placed on the load-bearing units, and then the conveyor belt 21 drives the battery cells 90 to move synchronously. The load-bearing units include two symmetrically arranged second load-bearing plates, and the second load-bearing plates are fixedly connected to the conveyor belt 21. Specifically, the second load-bearing plates are connected to the conveyor belt 21 through pads 22, and the pads 22 are fixedly connected to the conveyor belt 21, and the connection method of the two is bolt connection; the second load-bearing plates are fixedly connected to the pads 22, and the connection method of the two is bolt connection. Limiting members 23 are provided at both ends of each second load-bearing plate, and four limiting members 23 enclose a storage space for accommodating the battery cells 90. As shown Figure 5 As shown, the second carrier plate on the left has two stoppers 23, which are located above the second carrier plate and fixedly connected to the second carrier plate, and the connection between the two is bolted connection, and the stopper 23 is vertically fixedly connected with a first baffle away from the other second carrier plate, and the height of the first baffle is higher than the upper surface of the battery cell 90; the stopper 23 is vertically arranged with a second baffle away from the edge of the end of the same second carrier plate, and the height of the second baffle is lower than the upper surface of the battery cell 90. The lower surface of the battery cell 90 is located in the accommodation space enclosed by the four stoppers 23, and the lower surface of the pole ear of the battery cell 90 contacts the end of the second baffle and extends out of the accommodation space.

[0049] The electrode detection mechanism 24 includes a detector 37 and a plurality of detection heads 35 connected to the detector 37, and the detection heads 35 can contact the tabs of the battery cell 90; the detector 37 is fixedly mounted on the machine tool 20 through a first support frame 31, and a first cylinder 33 is provided on the first support frame 31 for driving the detection heads 35 to contact or separate from the battery cell 90. Figure 6 As shown, the first support frame 31 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 conveyor belt 21, and the bottom ends of the first vertical rods are fixedly connected to the machine tool 20, and the connection method of the two is bolt connection, and the two ends of the first horizontal rod are respectively fixedly connected to the top ends of the two first vertical rods, and the connection method of the two is bolt connection. In this embodiment, the detector 37 is fixedly installed on the first horizontal rod.

[0050] A first cylinder 33 and a detection head 35 pushed by the first cylinder 33 form an electrode detection unit. In this embodiment, the number of electrode detection units is four and they are evenly divided into two groups. The two groups of electrode detection units are spaced apart along the conveying direction of the battery cell 90. The electrode detection units within each group are respectively located on both sides of the conveyor belt 21. Each group of electrode detection units detects one battery cell 90, that is, the tabs of two battery cells 90 can be detected simultaneously. In this embodiment, each electrode detection unit has 4 detection heads 35.

[0051] The connection mode between the first cylinder 33 and the first support frame 31 is that second fixing plates are fixedly connected to the first vertical rods of the first support frame 31. The length direction of the second fixing plate is parallel to the conveying direction of the battery cell 90. The connection mode between the second fixing plate and the first support frame 31 is bolt connection; two first mounting plates 32 are fixedly connected to each second fixing plate, and their connection mode is bolt connection. The first cylinder 33 is fixedly installed on the first mounting plate 32; a third connecting plate 34 is fixedly connected to the end of the piston rod of the first cylinder 33, and four detection heads 35 are fixedly connected to the third connecting plate 34. A plurality of support plates 36 capable of supporting the tabs are fixedly connected to the first mounting plate 32. The support plate 36 is located at the bottom of the first mounting plate 32, and their connection mode is bolt connection.

[0052] The working process of the electrode detection mechanism 24 is that the conveyor belt 21 conveys the battery cell 90 to the working station of this mechanism. The tab is located between the support plate 36 and the detection head 35, and the lower surface of the tab contacts the upper surface of the support plate 36; the first cylinder 33 drives the corresponding detection head 35 to move downward until the detection head 35 contacts the corresponding tab; the detector 37 detects the tab to determine the positive and negative poles of the battery cell 90 and transmits them to the control system; after the detection is completed, the first cylinder 33 drives the detection head 35 to rise to separate the detection head 35 from the tab, and the conveyor belt 21 conveys the battery cell 90 to the next working station.

[0053] If the electrode direction of the tab of the battery cell 90 is correct, the adjustment mechanism 25 does not work. If the electrode direction of the tab of the battery cell 90 is incorrect, the control system controls the adjustment mechanism 25 to adjust its electrode direction. The adjustment mechanism 25 includes a first suction cup 44 for gripping the battery cell 90. The first suction cup 44 performs vertical reciprocating motion through a first driving component and rotates through a second driving component. The first driving component includes a second air cylinder 40. The second air cylinder 40 is installed on the machine tool 20 through a second support frame 38. Among them, the second support frame 38 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 conveyor belt 21, and the bottom ends of the second vertical rods are fixedly connected to the machine tool 20, and the connection method between the two is bolt connection. The two ends of the second horizontal rod are respectively fixedly connected to the top ends of the two second vertical rods, and the connection method between the two is bolt connection. The connection method between the second air cylinder 40 and the second support frame 38 is that a second sliding table air cylinder 39 is fixedly installed at the central position of the second horizontal rod, and the second air cylinder 40 is fixed on the sliding table of the second sliding table air cylinder 39 and can drive the second air cylinder 40 and the first suction cup 44 to move along the conveying direction of the battery cell 90. The second driving component includes a first rotary air cylinder 41 fixedly installed at the piston end of the second air cylinder 40. The first rotary air cylinder 41 is drivingly connected to the first suction cup 44. Specifically, the piston end of the first rotary air cylinder 41 is fixedly connected to a first rotating plate 42. Two symmetrically distributed first connecting pieces 43 are fixedly connected to the first rotating plate 42. One end of the first connecting piece 43 is fixedly connected to the first rotating plate 42, and the connection method between the two is bolt connection; the other end of the first connecting piece 43 is fixedly installed with the first suction cup 44, and two first suction cups 44 are installed on each first connecting piece 43. Two second protective claws 46 are slidably arranged on the first rotating plate 42. The two second protective claws 46 are driven to move towards or away from each other through a seventh air cylinder 45. The seventh air cylinder 45 is a double-acting air cylinder and is fixedly installed at the central position of the first rotating plate 42 and below the first rotating plate 42. The two second protective claws 46 are correspondingly fixed on the two side pistons of the seventh air cylinder 45; the end of the second protective claw 46 is provided with a bent portion that can be located below the battery cell 90, and when the first suction cup 44 sucks the battery cell 90 and rotates, the bent portion of the second protective claw 46 is located below the battery cell 90, playing a protective role to prevent the battery cell 90 from falling.

[0054] The working process of the adjustment mechanism 25 is as follows: the electrode detection mechanism 24 detects the electrode of the battery cell 90. If the electrode direction of the battery cell 90 is opposite, the electrode direction needs to be adjusted through the adjustment mechanism 25. Specifically, the second cylinder 40 drives the first rotating cylinder 41 and the first rotating plate 42 to move downward, thereby driving the first suction cup 44 to move downward until it contacts the upper surface of the battery cell 90, and the first suction cup 44 adsorbs the battery cell 90; the second cylinder 40 drives the first suction cup 44 and the battery cell 90 to move upward to the desired position, and the first rotating cylinder 41 drives the battery cell 90 to rotate 180° to adjust the electrode direction; the second cylinder 40 drives the first suction cup 44 and the battery cell 90 to move downward until the battery cell 90 is placed on the second supporting plate, and the first suction cup 44 separates from the battery cell 90 and rises.

[0055] The flipping mechanism 26 includes a barcode scanning gun 55 and a clamping assembly for clamping the battery cell 90. The clamping assembly performs vertical reciprocating motion through the third driving assembly and flips through the fourth driving assembly. The clamping assembly includes a plurality of clamping units. In this embodiment, the number of clamping units is two and they are distributed along the transmission direction of the battery cell 90. One clamping unit corresponds to one battery cell 90, that is, the flipping mechanism 26 can flip two battery cells 90 at the same time, thereby improving the processing efficiency of the soft-pack battery. The clamping unit includes two clamping jaws 51 that can move toward and away from each other. A clamping area is formed between the two clamping jaws 51, and the two clamping jaws 51 move toward each other so that the edge of the battery cell 90 conflicts with the clamping jaws 51. The third driving assembly includes a second support plate 47 fixedly connected to the machine tool 20 and a fourth connecting plate 49 slidably connected to the second support plate 47. The second support plate 47 is connected to the machine tool 20 by bolts. The fourth connecting plate 49 is connected to the second supporting plate 47 in such a way that two parallel and vertically arranged slide rails are fixedly connected to the second supporting plate 47, and the connection between the two is bolted connection. A slider corresponding to the slide rails is fixedly connected to the fourth connecting plate 49, and the slider can slide along the slide rails. The fourth connecting plate 49 is driven to reciprocate in the vertical direction by the eighth cylinder 48, and the eighth cylinder 48 is fixedly installed on the side of the second supporting plate 47 away from the conveyor belt 21; the fourth connecting plate 49 is located on the side close to the conveyor belt 21, and a third fixing plate is vertically fixed at the center of the top of the fourth connecting plate 49, and the end of the third fixing plate passes through the second supporting plate 47 and is fixedly connected to the end of the piston rod of the eighth cylinder 48, so that the eighth cylinder 48 can drive the fourth connecting plate 49 to move vertically.

[0056] The fourth driving assembly includes a second rotary cylinder 50 fixedly mounted on the second support plate 47. The number of the second rotary cylinders 50 corresponds to the number of the clamping units. Therefore, in this embodiment, there are two second rotary cylinders 50, and the two second rotary cylinders 50 are both located on the side of the second support plate 47 away from the conveyor belt 21. The piston of the second rotary cylinder 50 is fixedly connected to the second rotating plate 54, and the second rotating plate 54 is fixedly mounted with a ninth cylinder 53 located between the two clamps 51. The ninth cylinder 53 is a double-acting cylinder, that is, one end of the two clamps 51 is fixedly connected to the pistons on both sides of the ninth cylinder 53, and the other end of the clamp 51 extends toward the other side of the conveyor belt 21.

[0057] In this embodiment, each clamping jaw 51 is fixedly connected to a plurality of first clamping blocks 52 distributed along its length direction, and each clamping jaw 51 has two first clamping blocks 52. The first clamping blocks 52 are connected to the clamping jaws 51 by bolts, and the first clamping blocks 52 are provided with a groove with an opening toward the clamping area and capable of extending the edge of the battery cell 90.

[0058] In this embodiment, two sensors 57 corresponding to the two clamping units are fixedly connected to the fourth connecting plate 49 , and a sensing sheet 56 is fixedly connected to the second rotating plate 54 . The sensor 57 can sense the sensing sheet 56 during the rotation of the clamping jaw 51 .

[0059] The working process of the flipping mechanism 26 is as follows: first, the barcode scanning gun 55 scans the battery cell 90 logo. If the barcode scanning gun 55 does not retrieve the battery cell 90 logo, the eighth cylinder 48 drives the clamp 51 to move downward to the required position, and the ninth cylinder 53 drives the two clamps 51 to move toward each other. The two clamps 51 move toward each other so that the edge of the battery cell 90 conflicts with the clamp 51. Specifically, the edge of the battery cell 90 enters the groove and conflicts with the bottom of the groove, thereby fixing the battery cell 90; after the eighth cylinder 48 drives the clamp 51 to move upward to the required position, the second rotating cylinder 50 drives the clamp 51 to rotate 180° so that the battery cell 90 logo faces upward, thereby completing the flipping; the eighth cylinder 48 drives the clamp 51 to move downward until the battery cell 90 is located in the second supporting plate. After the ninth cylinder 53 drives the two clamps 51 to move away from each other, the eighth cylinder 48 drives the clamp 51 to move upward, so that the transmission mechanism transfers the battery cell 90 to the next workstation.

[0060] Both the primary flattening mechanism 27 and the secondary flattening mechanism 29 include multiple groups of upper pressure blocks and lower pressure blocks located on both sides of the transmission mechanism. A flattening area for the battery cell 90 tabs to enter is formed between the upper pressure blocks and the lower pressure blocks in each group. In this embodiment, the upper pressure block of the primary flattening mechanism 27 is called the first upper pressure block 61, and the lower pressure block is called the first lower pressure block 62. The upper pressure block of the secondary flattening mechanism 29 is called the second upper pressure block 84, and the lower pressure block is called the second lower pressure block 85.

[0061] The first flattening mechanism 27 further includes a third support frame 58 fixedly connected to the machine tool 20. Specifically, the third support frame 58 includes two vertically arranged third vertical rods. The two third vertical rods are located on both sides of the conveyor belt 21, and the bottom ends of the third vertical rods are fixedly connected to the machine tool 20 by bolt connection. A fourth fixing plate is fixedly connected to each third vertical rod by bolt connection; two second mounting plates 59 distributed along the conveying direction of the battery cell 90 are fixedly connected to each fourth fixing plate by bolt connection. Two oppositely arranged tenth cylinders 60 are fixedly installed on each second mounting plate 59. The two tenth cylinders 60 are respectively located at the top and bottom of the second mounting plate 59. The tenth cylinder 60 at the top is drivingly connected to the first upper pressing block 61, and the tenth cylinder 60 at the bottom is drivingly connected to the first lower pressing block 62. That is, in this embodiment, the first flattening mechanism 27 can work on two battery cells 90 simultaneously. The first flattening mechanism 27 flattens the tabs of the battery cell 90, improves the flatness of the tabs, facilitates subsequent laser cutting, and improves the accuracy of the tabs.

[0062] The laser cutting mechanism 28 includes a first camera 75, a laser 67, and a first robotic arm 2 for driving the laser 67 and the first camera 75. The first camera 75 collects the images of the tabs and transmits them to the control system. The control system identifies the images and determines the initial position of the laser 67; in this embodiment, the first camera 75 and the laser 67 are called laser cutting units. The number of laser cutting units is two, and they are respectively located on both sides of the conveyor belt 21. One laser cutting unit can cut the tabs of two battery cells 90 on this side.

[0063] The first robotic arm 2 includes a fifth mounting plate 95, a fifth driving component for driving the fifth mounting plate 95 to reciprocate along the conveying direction of the battery cell 90, a sixth driving component for driving the fifth mounting plate 95 to reciprocate horizontally along the direction perpendicular to the conveying direction of the battery cell 90, and a seventh driving component for driving the fifth mounting plate 95 to move vertically. The first camera 75 and the laser 67 are fixed on the fifth mounting plate 95.

[0064] The fifth driving assembly includes a first bracket 63. The first bracket 63 includes two first vertical rods distributed along the conveying direction of the battery cell 90. The bottom ends of the first vertical rods are fixedly connected to the machine tool 20. Specifically, an intermediate plate is commonly connected to the bottom ends of the two first vertical rods. The connection manner between the first vertical rod and the intermediate plate is bolt connection, and the connection manner between the intermediate plate and the machine tool 20 is bolt connection. At the top end of the first vertical rod, a third slide table cylinder 64 is provided for driving the fifth mounting plate 95 to reciprocate along the conveying direction of the battery cell 90. A horizontal plate is fixedly connected to the top end of the first vertical rod, and the connection manner between the first vertical rod and the horizontal plate is bolt connection. The third slide table cylinder 64 is fixedly installed on the horizontal plate. The sixth driving assembly includes a second bracket 65 fixedly connected to the slide plate of the third slide table cylinder 64. The second bracket 65 includes a vertically arranged first part and a horizontally arranged second part. The first part and the second part are fixedly connected, and the connection manner between them is bolt connection. Two parallel reinforcing plates are fixedly arranged between the first part and the second part. Both the first part and the second part are plate-like structures, and the second part is fixedly connected to the slide plate of the third slide table cylinder 64. The second bracket 65 is provided with a fourth slide table cylinder 66 for driving the fifth mounting plate 95 to reciprocate horizontally along the direction perpendicular to the conveying direction of the battery cell 90. In this embodiment, the fourth slide table cylinder 66 is arranged on the first part. The seventh driving assembly includes a fifth fixing plate fixedly connected to the slide plate of the fourth slide table cylinder 66. A fifth slide table cylinder for driving the fifth mounting plate 95 to move vertically is arranged on the fifth fixing plate. The fifth mounting plate 95 is fixedly connected to the slide plate of the fifth slide table cylinder. The laser 67 is fixedly installed on the fifth mounting plate 95.

[0065] The fifth fixing plate is fixedly connected to a sixth fixing plate, and the connection manner between them is bolt connection. The first camera 75 is fixedly connected to the sixth fixing plate, and a light source surrounding the first camera 75 is arranged on the sixth fixing plate to improve the quality of the tab image.

[0066] Support blocks 70 and a pressing plate 69 parallel to the conveyor belt 21 are arranged on the machine tool 20. Among them, the pressing plate 69 is a square plate-like mechanism, and a processing hole 76 for exposing the tabs is opened on the pressing plate 69. The processing holes 76 are four and are respectively located at the four corners of the pressing plate 69, corresponding to the tabs of the two battery cells 90, that is, one tab corresponds to one processing hole 76. The number of the support blocks 70 is four, corresponding to the tabs of the two battery cells 90 respectively. A blanking hole 77 is opened on the support block 70. The side wall of the blanking hole 77 is an inclined surface. The large end of the blanking hole 77 is located on the upper surface of the support block 70, and the small end is located on the lower surface of the support block 70. An avoidance groove 78 is opened on the side wall of the blanking hole 77. A blanking pipe 71 is communicated with the bottom end of the blanking hole 77. The cut tab waste enters the blanking pipe 71 through the blanking hole 77 and finally flows out through the blanking pipe 71.

[0067] The pressing plate 69 is driven to move vertically in a reciprocating manner by the third air cylinder 72. During the vertical movement of the pressing plate 69, the tab can be pressed tightly against the supporting block 70. There are two third air cylinders 72, which are respectively located on both sides of the conveyor belt 21. A third support bracket 73 fixedly connected to the machine tool 20 is arranged below the third air cylinder 72. The third air cylinder 72 is fixedly installed on the third support bracket 73. The piston end of the third air cylinder 72 is fixedly connected to the lower surface of the pressing plate 69. The supporting block 70 is arranged in such a way that a pushing air cylinder is fixedly connected below each third support bracket 73. The piston end of the pushing air cylinder is fixedly connected to a sliding plate 79. The sliding plate 79 is fixedly connected to the two supporting blocks 70 on this side through a fifth connecting plate 74.

[0068] An exhaust pipe 68 is arranged on the fifth mounting plate 95 for discharging the gas generated by laser cutting.

[0069] Two third protective claws 94 are slidably arranged on the pressing plate 69. The two third protective claws 94 are driven to move towards or away from each other by a twelfth air cylinder 93. The twelfth air cylinder 93 is a double-acting air cylinder and is fixedly installed at the center position of the baffle and above the baffle. The two third protective claws 94 are correspondingly fixed on the pistons on both sides of the twelfth air cylinder 93. A bent portion capable of being located below the battery cell 90 is arranged at the end of the third protective claw 94. When laser cutting the battery cell 90, the bent portion of the third protective claw 94 is located below the battery cell 90, and the edge of the battery cell 90 abuts against the side wall of the third protective claw 94, playing a role in fixing the battery cell 90.

[0070] The working process of the laser cutting mechanism 28 is as follows: The battery cell 90 is conveyed between the pressing plate 69 and the supporting block 70 by the conveying mechanism. The pressing plate 69 presses the tab down tightly against the supporting block 70. The first robotic arm 2 drives the first camera 75 to collect the image of the corresponding tab and transmit it to the control system. The control system identifies the image and confirms the initial position of the laser 67 and the cutting path of the laser 67. After the laser 67 cuts the corresponding tab, it cuts another tab on the same side. After the four tabs are cut, the pressing plate 69 moves upward, and the conveying mechanism conveys the battery cell 90 to the next working station.

[0071] The secondary flattening mechanism 29 further includes a fourth support frame 80 fixedly connected to the machine tool 20. Specifically, the fourth support frame 80 includes two vertically arranged fourth vertical rods. The two fourth vertical rods are located on both sides of the conveyor belt 21, and the bottom ends of the fourth vertical rods are fixedly connected to the machine tool 20, and the connection method between the two is bolt connection. Each fourth vertical rod is fixedly connected with a sixth connecting plate 81, and the connection method between the two is bolt connection; two third mounting plates 82 distributed along the conveying direction of the battery cell 90 are fixedly connected to each sixth connecting plate 81, and the connection method between the third mounting plate 82 and the sixth connecting plate 81 is bolt connection. Two oppositely arranged thirteenth cylinders 83 are fixedly installed on each third mounting plate 82. The two thirteenth cylinders 83 are respectively located at the top and bottom of the third mounting plate 82. The thirteenth cylinder 83 located at the top is drivingly connected to the second upper pressing block 84, and the thirteenth cylinder 83 located at the bottom is drivingly connected to the second lower pressing block 85. That is, in this embodiment, the secondary flattening mechanism 29 can work on two battery cells 90 simultaneously. The secondary flattening mechanism 29 flattens the tabs of the battery cell 90 to improve the flatness of the tabs.

[0072] In this embodiment, one side of the second upper pressing block 84 is fixedly connected with a nozzle 86 for jetting air onto the tabs to cool the tabs after laser cutting.

[0073] The dimension detection mechanism 30 includes a second camera 89 for collecting images of the tabs and transmitting the collected tab images to the control system. As Figure 14 shown, the dimension detection mechanism 30 further includes a fifth support frame 87 fixedly connected to the machine tool 20. The number of the fifth support frames 87 is two, which are respectively located on both sides of the conveyor belt 21. A seventh fixing plate is fixedly connected to the fifth support frame 87. Two fourth mounting plates 88 distributed along the conveying direction of the battery cell 90 are fixedly connected to the seventh fixing plate. One second camera 89 is arranged on each fourth mounting plate 88. That is, the number of the second cameras 89 is four, which respectively detect the tabs of the two battery cells 90.

[0074] Embodiment 2

[0075] A method for trimming the tabs of a soft-pack battery. The feeding device places the battery cells 90 at intervals on the conveying mechanism. The conveying mechanism transports the battery cells 90 to the electrode detection mechanism 24. The electrode detection mechanism 24 detects the electrode direction thereof and transmits the detection data to the control system. The conveying mechanism continues to transport it to the adjustment mechanism 25. If the electrode direction of the battery cell 90 is correct, the adjustment mechanism 25 does not operate. If the electrode direction of the battery cell 90 is incorrect, the first suction cup 44 fixes the battery cell 90 and rotates the battery cell 90 by 180° to adjust the electrode direction of the battery cell 90. The conveying mechanism continues to transport it to the flipping mechanism 26. If the code scanner 55 does not scan the identifier on the surface of the battery cell 90, after the flipping mechanism 26 flips the battery cell 90 by 180°, the code scanner 55 scans the identifier and transmits it to the control system. The control system confirms the cutting path of the battery cell 90. The conveying mechanism continues to transport the battery cell 90 to the primary flattening mechanism 27 for tab flattening. The flattened battery cell 90 enters the laser cutting mechanism 28. The first camera 75 collects an image of the tab to confirm the initial cutting position. The laser 67 cuts the tab according to the cutting path. The cut battery cell 90 is transported to the secondary flattening mechanism 29 for tab flattening, and then transported to the dimension detection mechanism 30. The second camera 89 collects an image of the tab and transmits it to the control system. If the dimensions of the tabs of the battery cell 90 meet the requirements, it enters the next process for processing.

[0076] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An ear trimming device for a soft-pack battery, characterized in that: It includes a feeding device and an ear trimming device. The ear trimming device includes a transmission mechanism arranged on a machine tool (20) and used for conveying the battery cell (90). Along the conveying direction of the battery cell (90), there are successively arranged an electrode detection mechanism (24) for detecting the ear electrode of the battery cell (90), an adjustment mechanism (25) for adjusting the direction of the ear electrode of the battery cell (90), a flipping mechanism (26) for flipping the battery cell (90), a primary flattening mechanism (27) for flattening the ears, a laser cutting mechanism (28) for cutting the ears, a secondary flattening mechanism (29) for flattening the ears, and a dimension detection mechanism (30) for detecting the dimensions of the ears; The electrode detection mechanism (24) includes a detector (37) and a plurality of detection heads (35) connected to the detector (37). The detection heads (35) can be in contact with the ears of the battery cell (90); The adjustment mechanism (25) includes a first suction cup (44) for gripping the battery cell (90). The first suction cup (44) makes vertical reciprocating motion through a first driving component and rotates through a second driving component; The flipping mechanism (26) includes a barcode scanner (55) and a clamping component for clamping the battery cell (90). The clamping component makes vertical reciprocating motion through a third driving component and flips through a fourth driving component; Both the primary flattening mechanism (27) and the secondary flattening mechanism (29) include multiple groups of upper clamping blocks and lower clamping blocks located on both sides of the transmission mechanism. There is a flattening area for the ears of the new successful battery cell (90) to enter between the upper clamping block and the lower clamping block in each group; The laser cutting mechanism (28) includes a first camera (75), a laser (67), and a first robotic arm (2) for driving the laser (67) and the first camera (75). The first camera (75) acquires an image of the ear and transmits it to the control system. The control system identifies the image and confirms the initial position of the laser (67); The dimension detection mechanism (30) includes a second camera (89) for acquiring an image of the ear and transmits the acquired ear image to the control system.

2. The ear trimming device for a soft-pack battery according to claim 1, characterized in that: The feeding device includes a material frame (1) for containing the battery cells (90) and several adjustment components arranged on an adjustable distance table (3) and used for adjusting the distance between the battery cells (90). The adjustment component includes two relatively arranged first bearing plates (91) that can move towards each other or away from each other. The battery cells (90) in the material frame (1) are transferred to the first bearing plates (91) through a transfer component, and the adjusted battery cells (90) on the first bearing plates (91) are transferred to the transmission mechanism through a feeding unit (10).

3. The ear trimming device for soft-pack batteries according to claim 2, characterized in that: The transfer component includes a transfer plate (18) and a second robotic arm for driving the transfer plate (18). Multiple groups of second suction cups (19) for adsorbing the battery cells (90) are arranged on the transfer plate (18), and each group of second suction cups (19) corresponds to one battery cell (90).

4. The trimming device for tab of soft-pack battery according to claim 2, wherein: The feeding unit (10) includes second connecting plates (12) corresponding to the bearing plates one by one. A plurality of third suction cups (13) for adsorbing the battery cells (90) are fixedly arranged on the second connecting plates (12). The second connecting plates (12) can make horizontal reciprocating motion and vertical reciprocating motion.

5. The ear trimming device for soft-pack batteries according to claim 1, characterized in that: The transmission mechanism includes a conveyor belt (21). A plurality of loading units are fixedly arranged on the conveyor belt (21) and distributed along its length direction. The loading unit includes two symmetrically arranged second loading plates. Limit members (23) are arranged at both ends of each second loading plate. The four limit members (23) enclose an accommodation space for accommodating the battery cell (90).

6. The ear trimming device for soft-pack batteries according to claim 1, wherein: The detector (37) is fixedly installed on the machine tool (20) through the first support frame (31). A first air cylinder (33) for driving the detection head (35) to contact or separate from the battery cell (90) is arranged on the first support frame (31).

7. The ear trimming device for soft-pack batteries according to claim 1, wherein: The first driving assembly includes a second air cylinder (40). The second air cylinder (40) is installed on the machine tool (20) through the second support frame (38). The second driving assembly includes a first rotary air cylinder (41) fixedly installed at the piston end of the second air cylinder (40). The first rotary air cylinder (41) is drivingly connected to the first suction cup (44).

8. The ear trimming device for soft-pack batteries according to claim 1, wherein: The clamping assembly includes a plurality of clamping units. Each clamping unit includes two jaws (51) that can move towards and away from each other. A clamping area is formed between the two jaws (51). When the two jaws (51) move towards each other, the edge of the battery cell (90) abuts against the jaws (51).

9. The trimming device for the tab of a soft-pack battery according to claim 1, wherein: A support block (70) and a pressing plate (69) parallel to the conveyor belt (21) are arranged on the machine tool (20). The pressing plate (69) is driven by a third air cylinder (72) to move vertically in a reciprocating manner. During the vertical movement of the pressing plate (69), the tab can be pressed onto the support block (70). A processing hole (76) for exposing the tab is provided on the pressing plate (69).

10. A trimming method for tabs of soft-pack batteries, characterized in that: The feeding device places the battery cells (90) at intervals on the transmission mechanism. The transmission mechanism transports the battery cells (90) to the electrode detection mechanism (24). The electrode detection mechanism (24) detects the electrode direction thereof and transmits the detection data to the control system. The transmission mechanism continues to transport it to the adjustment mechanism (25). If the electrode direction of the battery cell (90) is correct, the adjustment mechanism (25) does not work. If the electrode direction of the battery cell (90) is incorrect, the first suction cup (44) fixes the battery cell (90) and rotates the battery cell (90) by 180° to adjust the electrode direction of the battery cell (90). The transmission mechanism continues to transport it to the flipping mechanism (26). If the barcode scanner (55) does not scan the identifier on the surface of the battery cell (90), after the flipping mechanism (26) flips the battery cell (90) by 180°, the barcode scanner (55) scans the identifier and transmits it to the control system. The control system confirms the cutting path of the battery cell (90). The transmission mechanism continues to transport the battery cell (90) to the primary flattening mechanism (27) for tab flattening. The flattened battery cell (90) enters the laser cutting mechanism (28). The first camera (75) collects an image of the tab to confirm the initial cutting position. The laser (67) cuts the tab according to the cutting path. The cut battery cell (90) is transported to the secondary flattening mechanism (29) for tab flattening, and then transported to the dimension detection mechanism (30). The second camera (89) collects an image of the tab and transmits it to the control system. If the dimensions of the tabs of the battery cell (90) meet the requirements, it enters the next process for processing.

Images