Pole lug correcting and bending equipment

Abstract

The invention provides pole lug correcting and bending equipment which comprises a rack, an operation platform, a pole lug correcting mechanism and a pole lug bending mechanism, and the operation platform is arranged on the rack and used for placing a battery cell; the tab correction mechanism is at least partially arranged on the operation platform and is used for correcting tabs of the battery cells placed on the operation platform; the tab bending mechanism is at least partially arranged on the operation platform and is used for bending tabs of the battery cells placed on the operation platform; according to the tab correcting and bending device, the tab correcting mechanism and the tab bending mechanism are arranged on the same equipment, that is, the tab correcting operation and the tab bending operation can be carried out on the same equipment, so that the tab correcting and bending procedures are continuously completed in the single equipment; the problem of low production efficiency caused by single function of traditional equipment is effectively solved, the tab processing precision and the battery cell assembling efficiency are remarkably improved, and high practicability and process reliability are achieved at the same time.

Description

Technical Field

[0001] This invention relates to the field of processing equipment technology, and specifically to a tab straightening and bending device. Background Technology

[0002] In related technologies, during battery processing, the battery tabs are prone to tilting during transport, which affects the processing effect and can easily cause the tabs to be misaligned. To address this, a tab correction mechanism is needed to correct the tabs. Furthermore, during the cell production and assembly process, the tabs of the cell need to be bent so that they are bent to the center of the cell end.

[0003] However, traditional processing equipment can only calibrate or bend the electrode individually, resulting in low production efficiency and poor practicality. Summary of the Invention

[0004] The embodiments of the present invention provide a tab correction and bending device, which can improve the technical problems of traditional processing equipment that can only correct or bend the tabs individually, resulting in low production efficiency and poor practicality.

[0005] In a first aspect, embodiments of the present invention provide a tab straightening bending device, comprising:

[0006] frame;

[0007] An operating platform, which is mounted on the rack, is used to hold battery cells;

[0008] A tab calibration mechanism, at least partially disposed on the operating platform, for calibrating the tabs of the battery cell placed on the operating platform; and,

[0009] A tab bending mechanism is provided at least partially on the operating platform for bending the tabs of the battery cell placed on the operating platform.

[0010] In one embodiment, the electrode correction mechanism includes:

[0011] A first calibration block, movably connected to the operating platform; and...

[0012] The second calibration block is movably connected to the operating platform. There is a tab calibration space between the second calibration block and the first calibration block. The second calibration block and the first calibration block can move towards each other and away from each other. The first calibration block and the second calibration block are used to move towards each other to push the first tab and the second tab of the battery cell, respectively.

[0013] Thus, the first and second calibration blocks are movably connected to the operating platform and can move towards each other, applying thrust to the first and second tabs of the battery cell simultaneously, thereby achieving precise alignment and position correction of the tabs on both sides.

[0014] Specifically, in this embodiment, the first correction block and the second correction block are symmetrically arranged. Through the symmetrical arrangement, not only is the offset error of the first and second tabs of the battery cell eliminated, ensuring that the positioning reference of the subsequent bending process is consistent, but it can also adapt to battery cells of different widths, improve the versatility of the equipment, and thus shorten the cycle time while ensuring the correction accuracy.

[0015] In one embodiment, the tab correction mechanism further includes a positioning block disposed between the first correction block and the second correction block to divide the tab correction space into a first tab correction space (304) and a second tab correction space, and to form the first tab correction space between the positioning block and the first correction block, and the second tab correction space between the positioning block and the second correction block, wherein the first tab correction space and the second tab correction space are respectively used to position the first tab and the second tab of the battery cell.

[0016] Thus, by setting a positioning block between the first correction block and the second correction block, independent and symmetrical first tab correction space and second tab correction space are formed on both sides respectively. After the tab of the battery cell is clamped into the space, it can be limited by the positioning block and the corresponding correction block at the same time, which not only prevents the tab from warping or excessively shifting during the correction process, but also provides a stable reference for subsequent bending.

[0017] Furthermore, by simultaneously constraining both sides of the battery cell with a positioning block, the precise positioning of both sides of the electrode can be completed in a single calibration action, simplifying the mechanism and reducing the overall size, thus significantly improving calibration efficiency and consistency.

[0018] In one embodiment, the tab straightening bending device further includes a drive assembly, and the tab straightening mechanism further includes a first lower pressure roller, the first lower pressure roller being disposed corresponding to the first straightening block, the first lower pressure roller being connected to the drive assembly such that the drive assembly drives the first lower pressure roller to move, and the first lower pressure roller pushes the first straightening block; and / or,

[0019] The tab correction bending device further includes a drive assembly, and the tab correction mechanism further includes a second lower pressure roller, which is disposed corresponding to the second correction block. The second lower pressure roller is connected to the drive assembly so that the drive assembly drives the second lower pressure roller to move and causes the second lower pressure roller to push the second correction block.

[0020] Thus, by linking the first pressing roller with the drive assembly and cooperating with the second pressing roller with the drive assembly, the forces can be converted into downward thrusts on the first and second correction blocks, respectively, avoiding the limitation of the movement space of the first and second correction blocks, and realizing the correction blocks to clamp the tabs quickly, smoothly and symmetrically.

[0021] It should be noted that in this application, "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / ", unless otherwise specified, generally indicates that the related objects before and after it are in an "or" relationship.

[0022] In one embodiment, the first correction block is provided with a first guide slope that cooperates with the first lower pressure roller; and / or,

[0023] The second correction block is provided with a second guide slope that cooperates with the second lower pressure roller.

[0024] Thus, by setting a first guide slope on the first correction block and a second guide slope on the second correction block, the contact between the first lower pressure roller and the first correction block, as well as between the second lower pressure roller and the second correction block, can be transformed into a progressive thrust transmission guided by the slope. On the one hand, this significantly reduces the impact and wear of the mechanism and improves the smoothness of the movement; on the other hand, by utilizing the component force of the slope, the vertical movement of the first lower pressure roller is efficiently transformed into the horizontal clamping action of the first correction block, and the vertical movement of the second lower pressure roller is efficiently transformed into the horizontal clamping action of the second correction block. At the same time, it ensures that the correction blocks on both sides close synchronously, symmetrically and quickly, achieving higher precision electrode correction and positioning within a limited space.

[0025] In one embodiment, the correction bending device further includes a drive assembly, and the tab bending mechanism includes:

[0026] A first bending block is disposed on the operating platform to support the first tab of the battery cell carried by the operating platform.

[0027] A second bending block, disposed on the operating platform, is used to support the second tab of the battery cell carried by the operating platform; and,

[0028] A pressing block is connected to the driving assembly. The first bending block and the second bending block are located on the path in which the pressing block moves as driven by the driving assembly. The driving assembly is used to move the pressing block closer to the first bending block and the second bending block so that the first and second tabs of the battery cell are bent.

[0029] Thus, by setting the first bending block and the second bending block on the operating platform, a stable support reference is formed for the first and second tabs of the battery cell, respectively. Then, with the help of the drive component, the pressing block is driven to move synchronously close to the first bending block and the second bending block, so that the double tabs can be bent synchronously at the same angle and height with one pressing action.

[0030] This ensures consistent bending angles and precise positioning, while significantly shortening cycle time, thereby improving overall line yield and cell assembly efficiency.

[0031] Furthermore, by coordinating the tab bending mechanism and the tab straightening mechanism, the tab straightening and bending processes can be completed continuously in a single piece of equipment. This effectively solves the problem of low production efficiency caused by the single function of traditional equipment, significantly improves the accuracy of tab processing and the efficiency of cell assembly, and combines high practicality with process reliability.

[0032] In one embodiment, the first bending block is connected to the operating platform via a first elastic element, the first elastic element being located on the side of the first bending block opposite to the lower pressure block; and / or,

[0033] The second bending block is connected to the operating platform via a second elastic element, which is located on the side of the second bending block away from the lower pressure block.

[0034] By setting a first elastic element between the first bending block and the operating platform, and a second elastic element between the second bending block and the operating platform, the tab is subjected to flexible support and elastic buffering rather than rigid collision during the bending process. This effectively absorbs the downward impact force, prevents cracking at the root of the tab or metal fatigue, and automatically resets the bending block after bending by means of elastic rebound force, thereby achieving adaptive fine-tuning and consistent control of the tab bending angle.

[0035] In this way, while ensuring bending accuracy, it can significantly reduce impact wear of the mechanism, extend service life, and be compatible with the process requirements of tabs of different thicknesses, thereby improving the versatility and reliability of the equipment.

[0036] In one embodiment, the operating platform is movably mounted on the frame in a direction toward or away from the lower pressure block; and / or, the tab straightening bending device further includes a first lifting assembly connected to the operating platform for moving the operating platform toward or away from the lower pressure block.

[0037] Therefore, to prevent the first and second electrode tabs from being lifted during the resetting process of the first and second bending blocks, a first lifting component is connected to the operating platform. After the electrode tabs are bent, the operating platform is lowered by the first lifting component, so that the first and second bending blocks are lowered until the elastic element is fully reset. Then, the lower pressure block is raised by the drive component, which ensures that the electrode tabs are bent smoothly. The bent electrode tabs are relatively separated from the bending blocks before the bending blocks are elastically reset. The electrode tabs are "taken away" from the support surfaces of the first and second bending blocks, thereby cutting off the elastic rebound path and preventing the electrode tabs from being reset during the resetting process of the first and second bending blocks. This completely eliminates the risk that the bending angle of the electrode tabs will straighten again due to the rebound of the bending blocks, ensuring that the bending shape is formed and maintained stably in one go.

[0038] In one embodiment, the tab correction bending device further includes a drive assembly, which is mounted on the frame or the operating platform;

[0039] The first part of the electrode correction mechanism is disposed on the operating platform, and the second part of the electrode correction mechanism is connected to the drive assembly for cooperating with the first part of the electrode correction mechanism for correction; and / or,

[0040] The third part of the tab bending mechanism is disposed on the operating platform, and the fourth part of the tab bending mechanism is connected to the drive assembly for cooperating with the third part of the tab bending mechanism for bending.

[0041] In this way, by connecting the movable parts of the tab straightening mechanism and the tab bending mechanism to the drive assembly, while leaving the other fixed parts on the operating platform, the centralized arrangement of the drive end of the tab straightening and bending equipment can reduce motion inertia, wiring and maintenance difficulty, and ensure thrust transmission.

[0042] In one embodiment, a first portion of the electrode correction mechanism is detachably connected to the operating platform, or a second portion of the electrode correction mechanism is detachably connected to the drive assembly; and / or,

[0043] The third part of the tab bending mechanism is detachably connected to the operating platform, or the fourth part of the tab bending mechanism is detachably connected to the drive assembly.

[0044] In this way, key functional modules can be independently assembled and disassembled and interchanged quickly. On the one hand, when switching between different models of tabs or maintaining worn parts, there is no need to shut down and disassemble the entire machine. Only the corresponding module needs to be replaced, reducing the changeover time from hours to minutes. On the other hand, it can also realize bending or correction functions on the equipment to adapt to the assembly needs of different cells, with a high degree of flexibility.

[0045] In one embodiment, the electrode correction and bending device further includes a transfer platform, which is spaced apart from the operating platform, and the transfer platform is used to place the battery cell to be processed.

[0046] Thus, with the addition of the transfer platform, while the operating platform is processing the previous cell, the transfer platform simultaneously completes the waiting and attitude confirmation for the next cell, realizing the parallel cycle of "feeding-processing". On the one hand, it eliminates the waiting and idling of the operating platform, thereby increasing the single-machine capacity. On the other hand, it physically isolates the manual or robotic arm feeding action from the precision processing area, reducing the risk of dust, vibration and accidental collision, and further ensuring the accuracy and yield of the tab bending.

[0047] In one embodiment, the electrode correction and bending device further includes a first cell gripping component, which is installed on the operating platform and is movable between the transfer platform and the operating platform. The first cell gripping component is used to move the cell carried on the transfer platform to the operating platform, and is also used to remove the processed cell from the operating platform.

[0048] In this way, the first cell gripping component forms a closed-loop transport between the transfer platform, the operating platform, and the downstream workstation: after the operating platform completes the tab correction and bending, the first cell gripping component immediately removes the processed cell and simultaneously sends the pre-positioned cells to be processed on the transfer platform into the operating platform, achieving a seamless connection of "filling empty spaces and moving out when full".

[0049] This compresses the loading and unloading cycle to overlap with the processing cycle, eliminating waiting time for manual or robotic arms, while avoiding the risk of deformation of the tabs caused by secondary manual touching, further ensuring bending accuracy and consistency.

[0050] In one embodiment, the first cell gripping component includes a first driving member, a first placement member, a connecting member, and a second placement member. The first placement member is connected to the second placement member via the connecting member. The first driving member is connected to the connecting member and is used to drive the first placement member and the second placement member to move, so that the first placement member moves the cell carried by the transfer platform to the operating platform, and the second placement member removes the processed cell from the operating platform.

[0051] In this way, by connecting the first placement piece and the second placement piece to the same connector and driving them at once by the first drive piece, a double action cycle of "one-step round trip" is formed: the connector can simultaneously complete the "new battery cell on the machine" and the "bent or corrected battery cell off the machine" with a single movement, without any idle stroke in between, avoiding secondary offset of the tabs caused by multiple clamping, which improves production capacity and ensures bending consistency.

[0052] In one embodiment, the electrode correction and bending device further includes a second cell gripping component, which is installed on the operating platform and is used to place the cell to be processed onto the transfer platform.

[0053] In this way, the second cell gripping component can automatically and accurately place the incoming cells from upstream onto the transfer platform, enabling the cells to complete orientation identification and preliminary positioning before entering the main line for correction and bending.

[0054] In one embodiment, the second cell gripping assembly includes a second driving member and a third placement member, the second driving member being connected to the third placement member to move the third placement member to the transfer platform.

[0055] In this way, the second drive unit directly drives the third placement unit to move back and forth between the picking position and the transfer platform, realizing "point-to-point" high-speed transportation.

[0056] In one embodiment, the electrode correction and bending device further includes a second lifting assembly, which is connected to the first cell gripping assembly to drive the first cell gripping assembly to move up and down; and / or,

[0057] The electrode correction and bending device also includes a third lifting component, which is connected to the second cell gripping component to drive the second cell gripping component to lift.

[0058] By integrating a second lifting component into the first cell gripping component and a third lifting component into the second cell gripping component, the cell can be transported between the "transfer platform - operating platform - downstream station" with Z-axis freedom. On the one hand, it can avoid mechanical interference in the vertical direction, realize rapid picking and placing across height and obstacles, and significantly shorten the material change cycle. On the other hand, at the moment of cell handover, the thickness error or positioning deviation can be compensated by lifting and fine adjustment, ensuring that the electrode tab is accurately attached to the correction / bending reference surface, and preventing bending angle deviation or electrode tab damage caused by inconsistent transport height.

[0059] In one embodiment, when the first cell gripping assembly includes a first placement member and a second placement member, the first placement member is a suction cup and / or the second placement member is a suction cup; and / or,

[0060] When the second cell gripping assembly includes a third placement component, the third placement component is a suction cup.

[0061] By configuring any one or more of the first, second, and third placement components as suction cups, the battery cells can be handled entirely by vacuum adsorption with flexible contact instead of mechanical clamping. On the one hand, the suction cups can adapt to the slight unevenness of the battery cell surface, avoiding shell deformation or tab bending caused by uneven clamping force. On the other hand, the vacuum adsorption pick-and-place action has no return stroke, further reducing cycle time. At the same time, the suction cups have a simple structure and no exposed hard claws, enabling high-speed, low-vibration cross-platform handling in a compact space, balancing yield, speed, and equipment miniaturization.

[0062] The beneficial effects of the embodiments of the present invention are as follows:

[0063] In embodiments of the present invention, the tab correction mechanism and the tab bending mechanism are set on the same equipment, that is, the tab correction operation and the tab bending operation can be performed on the same equipment. This realizes the continuous completion of the tab correction and bending process in a single equipment, effectively solving the problem of low production efficiency caused by the single function of traditional equipment, significantly improving the accuracy of tab processing and the efficiency of cell assembly, and combining high practicality and process reliability. Attached Figure Description

[0064] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0065] Figure 1 This is a schematic diagram of the structure of the tab correction and bending device provided in an embodiment of the present invention;

[0066] Figure 2 This is a schematic diagram of the electrode correction and bending device provided in an embodiment of the present invention from another viewpoint;

[0067] Figure 3 yes Figure 1 The diagram shows the structure of the tab straightening mechanism and the tab bending mechanism in the tab straightening and bending equipment shown.

[0068] Figure 4 yes Figure 3 A schematic diagram of the first part of the electrode correction mechanism and electrode bending mechanism shown;

[0069] Figure 5 yes Figure 3 The diagram shows the structure of the second part of the electrode correction mechanism and electrode bending mechanism. Attached image description:

[0071] 1. Electrode straightening and bending equipment;

[0072] 100. Rack;

[0073] 200. Operating platform;

[0074] 300. Electrode alignment mechanism; 301. First alignment block; 302. Second alignment block; 303. Positioning block; 304. First electrode alignment space; 305. Second electrode alignment space; 306. First lower pressure roller; 307. Second lower pressure roller; 308. First guide slope; 309. Second guide slope;

[0075] 400. Pole tab bending mechanism; 401. First bending block; 402. Second bending block; 403. Lowering block;

[0076] 500. Driver components;

[0077] 600. First lifting assembly;

[0078] 700, transit platform;

[0079] 800. First cell gripping assembly; 801. First driving component; 802. First placement component; 803. Connecting component; 804. Second placement component;

[0080] 900, Second cell gripping assembly; 901, Second driving component; 902, Third placement component. Detailed Implementation

[0081] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention. In the present invention, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0082] Reference Figure 1 and Figure 2As shown, an embodiment of the present invention provides a tab correction and bending device 1, which includes a frame 100, an operating platform 200, a tab correction mechanism 300, and a tab bending mechanism 400. The operating platform 200 is disposed on the frame 100 for placing battery cells; the tab correction mechanism 300 is at least partially disposed on the operating platform 200 for correcting the tabs of the battery cells placed on the operating platform 200; and the tab bending mechanism 400 is at least partially disposed on the operating platform 200 for bending the tabs of the battery cells placed on the operating platform 200.

[0083] In the embodiments of the present invention, the tab correction mechanism 300 and the tab bending mechanism 400 are set on the same equipment, that is, the tab correction operation and the tab bending operation can be performed on the same equipment. This realizes the continuous completion of the tab correction and bending process in a single equipment, effectively solving the problem of low production efficiency caused by the single function of traditional equipment, significantly improving the accuracy of tab processing and the efficiency of cell assembly, and combining high practicality and process reliability.

[0084] In some embodiments, refer to Figure 3 As shown, the electrode correction mechanism 300 includes:

[0085] The first calibration block 301 is movably connected to the operating platform 200; and...

[0086] The second calibration block 302 is movably connected to the operating platform 200. There is a tab calibration space between the second calibration block 302 and the first calibration block 301. The second calibration block 302 and the first calibration block 301 can move towards and away from each other. The first calibration block 301 and the second calibration block 302 are used to move towards each other to push the first tab and the second tab of the battery cell respectively.

[0087] Thus, the first calibration block 301 and the second calibration block 302 are movably connected to the operating platform 200 and can move towards each other, applying thrust to the first and second tabs of the battery cell simultaneously, thereby achieving precise centering and position correction of the tabs on both sides.

[0088] Specifically, in this embodiment, the first correction block 301 and the second correction block 302 are symmetrically arranged. Through the symmetrical arrangement, not only is the offset error of the first and second tabs of the battery cell eliminated, ensuring that the positioning reference of the subsequent bending process is consistent, but it can also adapt to battery cells of different widths, improve the versatility of the equipment, and thus shorten the cycle time while ensuring the correction accuracy.

[0089] In some embodiments, refer to Figure 3 and Figure 4As shown, the tab correction mechanism 300 also includes a positioning block 303, which is disposed between the first correction block 301 and the second correction block 302 to divide the tab correction space into a first tab correction space 304 and a second tab correction space 305. The first tab correction space 304 is formed between the positioning block 303 and the first correction block 301, and the second tab correction space 305 is formed between the positioning block 303 and the second correction block 302. The first tab correction space 304 and the second tab correction space 305 are respectively used to position the first tab and the second tab of the battery cell.

[0090] Thus, by setting a positioning block 303 between the first correction block 301 and the second correction block 302, independent and symmetrical first tab correction space 304 and second tab correction space 305 are formed on both sides respectively. After the tab of the battery cell is clamped into the space, it can be simultaneously limited by the positioning block 303 and the corresponding correction block, which not only prevents the tab from warping or excessively shifting during the correction process, but also provides a stable reference for subsequent bending.

[0091] In addition, by using a positioning block 303 to simultaneously constrain both sides of the battery cell's tabs, the precise positioning of both sides' tabs can be achieved in a single calibration action, simplifying the mechanism and reducing the overall size, thus significantly improving calibration efficiency and consistency.

[0092] In some embodiments, refer to Figure 1 and Figure 2 As shown, the tab straightening and bending device 1 further includes a drive assembly 500, and the tab straightening mechanism 300 further includes a first lower pressure roller 306. The first lower pressure roller 306 is disposed corresponding to the first straightening block 301. The first lower pressure roller 306 is connected to the drive assembly 500, so that the drive assembly 500 drives the first lower pressure roller 306 to move, and the first lower pressure roller 306 pushes the first straightening block 301; and / or,

[0093] The electrode correction bending device 1 also includes a drive assembly 500, as shown in the reference. Figure 3 and Figure 4 As shown, the tab correction mechanism 300 also includes a second lower pressure roller 307, which is disposed corresponding to the second correction block 302. The second lower pressure roller 307 is connected to the drive assembly 500 so that the drive assembly 500 drives the second lower pressure roller 307 to move and pushes the second correction block 302.

[0094] Thus, by linking the first pressing roller 306 with the drive assembly 500 and cooperating with the second pressing roller 307 with the drive assembly 500, the forces can be converted into downward thrusts on the first correction block 301 and the second correction block 302, respectively, avoiding the limitation of the movement space of the first correction block 301 and the second correction block 302, and realizing the correction blocks to clamp the tabs quickly, smoothly and symmetrically.

[0095] It should be noted that in this application, "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / ", unless otherwise specified, generally indicates that the related objects before and after it are in an "or" relationship.

[0096] In some embodiments, refer to Figure 3 and Figure 5 As shown, the first correction block 301 is provided with a first guide slope 308 that cooperates with the first lower pressure roller 306; and / or,

[0097] The second correction block 302 is provided with a second guide slope 309 that cooperates with the second lower pressure roller 307.

[0098] Thus, by setting a first guide slope 308 on the first correction block 301 and a second guide slope 309 on the second correction block 302, the contact between the first lower pressure roller 306 and the first correction block 301, and between the second lower pressure roller 307 and the second correction block 302, can be transformed into a progressive thrust transmission guided by the slope. On the one hand, this significantly reduces the impact and wear of the mechanism and improves the smoothness of the movement; on the other hand, by utilizing the component force of the slope, the vertical movement of the first lower pressure roller 306 is efficiently transformed into the horizontal clamping action of the first correction block 301, and the vertical movement of the second lower pressure roller 307 is efficiently transformed into the horizontal clamping action of the second correction block 302. At the same time, it ensures that the correction blocks on both sides close synchronously, symmetrically and quickly, achieving higher precision tab correction and positioning within a limited space.

[0099] In some embodiments, refer to Figure 1 and Figure 2 As shown, the straightening and bending device also includes a drive assembly 500, and the tab bending mechanism 400 includes:

[0100] The first bending block 401 is disposed on the operating platform 200 to support the first tab of the battery cell carried by the operating platform 200.

[0101] The second bending block 402 is disposed on the operating platform 200 to support the second tab of the battery cell carried by the operating platform 200; and,

[0102] The lower pressure block 403 is connected to the drive assembly 500. The first bending block 401 and the second bending block 402 are located on the path of the lower pressure block 403 being driven by the drive assembly 500. The drive assembly 500 is used to drive the lower pressure block 403 closer to the first bending block 401 and the second bending block 402 so that the first and second tabs of the battery cell are bent.

[0103] Thus, by setting the first bending block 401 and the second bending block 402 on the operating platform 200, a stable support reference is formed for the first and second tabs of the battery cell, respectively. Then, with the help of the drive component 500, the pressing block 403 is driven to move synchronously close to the first bending block 401 and the second bending block 402, so that the double tabs can be bent at the same angle and height in one pressing action.

[0104] This ensures consistent bending angles and precise positioning, while significantly shortening cycle time, thereby improving overall line yield and cell assembly efficiency.

[0105] Furthermore, through the cooperation of the tab bending mechanism 400 and the tab straightening mechanism 300, the tab straightening and bending processes can be completed continuously in a single device, effectively solving the problem of low production efficiency caused by the single function of traditional equipment, significantly improving the accuracy of tab processing and the efficiency of cell assembly, and combining high practicality and process reliability.

[0106] In some embodiments, the first bending block 401 is connected to the operating platform 200 via a first elastic member, the first elastic member being located on the side of the first bending block 401 opposite to the lower pressure block 403; and / or,

[0107] The second bending block 402 is connected to the operating platform 200 through the second elastic element, which is located on the side of the second bending block 402 away from the lower pressure block 403.

[0108] By setting a first elastic element between the first bending block 401 and the operating platform 200, and setting a second elastic element between the second bending block 402 and the operating platform 200, the tab is subjected to flexible support and elastic buffering rather than rigid collision during the bending process. This effectively absorbs the downward impact force, prevents the root of the tab from cracking or metal fatigue, and automatically resets the bending block after bending by means of elastic rebound force, thereby achieving adaptive fine adjustment and consistent control of the tab bending angle.

[0109] In this way, while ensuring bending accuracy, it can significantly reduce impact wear of the mechanism, extend service life, and be compatible with the process requirements of tabs of different thicknesses, thereby improving the versatility and reliability of the equipment.

[0110] In some embodiments, refer to Figure 1 and Figure 2 As shown, the operating platform 200 can be movably mounted on the frame 100 in a direction that approaches or moves away from the lower pressure block 403; and / or, the tab straightening bending device 1 further includes a first lifting assembly 600, which is connected to the operating platform 200 for driving the operating platform 200 to move in a direction that approaches or moves away from the lower pressure block 403.

[0111] Thus, to prevent the first and second tabs from being lifted during the resetting process of the first bending block 401 and the second bending block 402, a first lifting component 600 is connected to the operating platform 200. After the tabs are bent, the operating platform 200 is lowered by the first lifting component 600, so that the first bending block 401 and the second bending block 402 are lowered until the elastic element is fully reset. Then, the lower pressure block 403 is raised by the drive component 500, which ensures that the tabs are bent smoothly. The bent tabs are relatively separated from the bending blocks before the bending blocks are elastically reset. The tabs are "taken away" from the support surfaces of the first bending block 401 and the second bending block 402, thereby cutting off the elastic rebound path and preventing the first bending block 401 and the second bending block 402 from resetting the tabs during the resetting process. This completely eliminates the risk that the bending angle of the tabs will straighten again due to the rebound of the bending blocks, ensuring that the bending shape is formed in one go and is maintained stably.

[0112] In some embodiments, refer to Figure 1 and Figure 2 As shown, the tab straightening and bending device 1 also includes a drive assembly 500, which is mounted on the frame 100 or the operating platform.

[0113] The first part of the electrode calibration mechanism 300 is disposed on the operating platform 200, and the second part of the electrode calibration mechanism 300 is connected to the drive assembly 500 for cooperating with the first part of the electrode calibration mechanism 300 for calibration; and / or,

[0114] The third part of the tab bending mechanism 400 is disposed on the operating platform 200, and the fourth part of the tab bending mechanism 400 is connected to the drive assembly 500 for bending in cooperation with the third part of the tab bending mechanism 400.

[0115] In this way, by connecting the movable parts of the tab correction mechanism 300 and the tab bending mechanism 400 to the drive assembly 500, while leaving the other fixed parts on the operating platform 200, the centralized arrangement of the drive end of the tab correction and bending device 1 can reduce motion inertia, wiring and maintenance difficulty, and ensure thrust transmission.

[0116] In some embodiments, a first portion of the electrode correction mechanism 300 is detachably connected to the operating platform 200, or a second portion of the electrode correction mechanism 300 is detachably connected to the drive assembly 500; and / or,

[0117] The third part of the tab bending mechanism 400 is detachably connected to the operating platform 200 or the fourth part of the tab bending mechanism 400 is detachably connected to the drive assembly 500.

[0118] In this way, key functional modules can be independently assembled and disassembled and interchanged quickly. On the one hand, when switching between different models of tabs or maintaining worn parts, there is no need to shut down and disassemble the entire machine. Only the corresponding module needs to be replaced, reducing the changeover time from hours to minutes. On the other hand, it can also realize bending or correction functions on the equipment to adapt to the assembly needs of different cells, with a high degree of flexibility.

[0119] In some embodiments, the tab correction and bending device 1 further includes a transfer platform 700, which is spaced apart from the operating platform 200. The transfer platform 700 is used to place the battery cells to be processed.

[0120] Thus, with the addition of the transfer platform 700, while the operating platform 200 is processing the previous cell, the transfer platform 700 simultaneously completes the waiting and attitude confirmation for the next cell, realizing the parallel cycle of "feeding-processing". On the one hand, it eliminates the waiting idle time of the operating platform 200, thereby increasing the single-machine capacity. On the other hand, it physically isolates the manual or robotic arm feeding action from the precision processing area, reducing the risk of dust, vibration and accidental collision, and further ensuring the accuracy and yield of the tab bending.

[0121] In some embodiments, the tab correction and bending device 1 further includes a first cell gripping assembly 800, which is mounted on the operating platform 200 and is movable between the transfer platform 700 and the operating platform 200. The first cell gripping assembly 800 is used to move the cells carried on the transfer platform 700 to the operating platform 200. The first cell gripping assembly 800 is also used to remove the processed cells from the operating platform 200.

[0122] In this way, the first cell gripping component 800 forms a closed-loop transport between the transfer platform 700, the operating platform 200, and the downstream workstation: after the operating platform 200 completes the tab correction and bending, the first cell gripping component 800 immediately removes the processed cell and simultaneously sends the pre-positioned cells to be processed on the transfer platform 700 into the operating platform 200, achieving a seamless connection of "filling empty spaces and moving out when full".

[0123] This compresses the loading and unloading cycle to overlap with the processing cycle, eliminating waiting time for manual or robotic arms, while avoiding the risk of deformation of the tabs caused by secondary manual touching, further ensuring bending accuracy and consistency.

[0124] In some embodiments, refer to Figure 2As shown, the first cell gripping assembly 800 includes a first driving member 801, a first placement member 802, a connecting member 803, and a second placement member 804. The first placement member 802 is connected to the second placement member 804 through the connecting member 803. The first driving member 801 is connected to the connecting member 803 and is used to drive the first placement member 802 and the second placement member 804 to move, so that the first placement member 802 moves the cell carried by the transfer platform 700 to the operation platform 200, and the second placement member 804 removes the processed cell from the operation platform 200.

[0125] Thus, by connecting the first placement piece 802 and the second placement piece 804 to the same connector 803 and driving it once by the first drive piece 801, a "one-step round trip" double action cycle is formed: the connector 803 can simultaneously complete the "new battery cell loading" and "bent or corrected battery cell unloading" with a single movement, without any idle stroke in between, avoiding secondary offset of the tabs caused by multiple clamping, which improves production capacity and ensures bending consistency.

[0126] In some embodiments, the tab correction and bending device 1 further includes a second cell gripping assembly 900, which is mounted on the operating platform 200 and is used to place the cells to be processed onto the transfer platform 700.

[0127] In this way, the second cell gripping component 900 can automatically and accurately place the incoming cells from upstream onto the transfer platform 700, so that the cells can complete orientation identification and preliminary positioning before entering the main line for correction and bending.

[0128] In some embodiments, refer to Figure 1 As shown, the second cell gripping assembly 900 includes a second driving member 901 and a third placement member 902. The second driving member 901 is connected to the third placement member 902 to drive the third placement member 902 to move to the transfer platform 700.

[0129] Thus, the second drive component 901 directly drives the third placement component 902 to move back and forth between the picking position and the transfer platform 700, realizing "point-to-point" high-speed transportation.

[0130] In some embodiments, the electrode correction bending device 1 further includes a second lifting assembly, which is connected to the first cell gripping assembly 800 to drive the first cell gripping assembly 800 to lift; and / or,

[0131] The electrode correction and bending device 1 also includes a third lifting component, which is connected to the second cell gripping component 900 to drive the second cell gripping component 900 to lift.

[0132] By integrating a second lifting component into the first cell gripping component 800 and a third lifting component into the second cell gripping component 900, the cell can be transported between the transfer platform 700, the operating platform 200, and the downstream station with Z-axis freedom. On the one hand, it can avoid mechanical interference in the vertical direction, realize rapid picking and placing across heights and obstacles, and significantly shorten the material change cycle. On the other hand, at the moment of cell handover, the thickness error or positioning deviation can be compensated by lifting and fine adjustment, ensuring that the tab and the correction / bending reference surface are accurately aligned, preventing bending angle deviation or tab damage caused by inconsistent transport height.

[0133] In some embodiments, when the first cell gripping assembly 800 includes a first placement member 802 and a second placement member 804, the first placement member 802 is a suction cup and / or the second placement member 804 is a suction cup; and / or,

[0134] When the second cell gripping assembly 900 includes a third placement member 902, the third placement member 902 is a suction cup.

[0135] By configuring any one or more of the first placement component 802, the second placement component 804, and the third placement component 902 as suction cups, the battery cells can be handled entirely by vacuum adsorption with flexible contact instead of mechanical clamping. On the one hand, the suction cups can adapt to the slight unevenness of the battery cell surface, avoiding shell deformation or tab bending caused by uneven clamping force. On the other hand, the vacuum adsorption pick-and-place action has no return stroke, further reducing cycle time. At the same time, the suction cups have a simple structure and no exposed hard claws, enabling high-speed, low-vibration cross-platform handling in a compact space, balancing yield, speed, and equipment miniaturization.

[0136] The embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A tab straightening and bending device, characterized in that, include: Rack (100); An operating platform (200) is disposed on the rack (100); A tab correction mechanism (300), said tab correction mechanism (300) being at least partially disposed on the operating platform (200); and, A tab bending mechanism (400) is at least partially disposed on the operating platform (200).

2. The electrode correction and bending device according to claim 1, characterized in that, The electrode correction mechanism (300) includes: A first calibration block (301) is movably connected to the operating platform (200); and, The second calibration block (302) is movably connected to the operating platform (200). There is a tab calibration space between the second calibration block (302) and the first calibration block (301), and the second calibration block (302) and the first calibration block (301) can move towards each other and away from each other.

3. The electrode correction and bending device according to claim 2, characterized in that, The electrode correction mechanism (300) further includes a positioning block (303), which is disposed between the first correction block (301) and the second correction block (302) to divide the electrode correction space into a first electrode correction space (304) and a second electrode correction space (305). The positioning block (303) and the first correction block (301) form the first electrode correction space (304), and the positioning block (303) and the second correction block (302) form the second electrode correction space (305).

4. The electrode correction and bending device according to claim 3, characterized in that, The tab straightening bending device (1) further includes a drive assembly (500), and the tab straightening mechanism (300) further includes a first lower pressure roller (306), the first lower pressure roller (306) being disposed corresponding to the first straightening block (301), the first lower pressure roller (306) being connected to the drive assembly (500) so that the drive assembly (500) drives the first lower pressure roller (306) to move, and causes the first lower pressure roller (306) to push the first straightening block (301); and / or, The tab correction bending device (1) further includes a drive assembly (500), and the tab correction mechanism (300) further includes a second lower pressure roller (307). The second lower pressure roller (307) is arranged corresponding to the second correction block (302). The second lower pressure roller (307) is connected to the drive assembly (500) so that the drive assembly (500) drives the second lower pressure roller (307) to move and pushes the second correction block (302).

5. The electrode correction and bending device according to claim 1, characterized in that, The straightening and bending device further includes a drive assembly (500), and the tab bending mechanism (400) includes: A first bending block (401) is disposed on the operating platform (200); A second bending block (402) is disposed on the operating platform (200); and, A pressing block (403) is connected to the driving assembly (500), and the first bending block (401) and the second bending block (402) are located on the path in which the pressing block (403) is driven by the driving assembly (500).

6. The electrode correction and bending device according to claim 5, characterized in that, The first bending block (401) is connected to the operating platform (200) via a first elastic element, the first elastic element being located on the side of the first bending block (401) opposite to the lower pressing block (403); and / or, The second bending block (402) is connected to the operating platform (200) via a second elastic element, the second elastic element being located on the side of the second bending block (402) away from the lower pressing block (403).

7. The electrode tab straightening and bending device according to claim 6, characterized in that, The operating platform (200) can be movably mounted on the frame (100) in a direction close to or away from the pressure block (403); and / or, The tab correction bending device (1) further includes a first lifting assembly (600), which is connected to the operating platform (200).

8. The electrode tab straightening and bending device according to any one of claims 1-7, characterized in that, The tab correction bending device (1) further includes a drive assembly (500), which is mounted on the frame (100) or the operating platform (200); The first part of the electrode correction mechanism (300) is disposed on the operating platform (200), and the second part of the electrode correction mechanism (300) is connected to the drive assembly (500); and / or, The third part of the tab bending mechanism (400) is disposed on the operating platform (200), and the fourth part of the tab bending mechanism (400) is connected to the drive assembly (500).

9. The tab straightening and bending device according to any one of claims 1-7, characterized in that, The tab correction bending device (1) further includes a transfer platform (700), wherein the transfer platform (700) and the operating platform (200) are spaced apart; and, The electrode correction and bending device (1) further includes at least one of a first cell gripping assembly (800) and a second cell gripping assembly (900), wherein the first cell gripping assembly (800) is installed on the operating platform (200) and is movable between the transfer platform (700) and the operating platform (200), and the second cell gripping assembly (900) is installed on the operating platform (200).

10. The electrode correction and bending device according to claim 9, characterized in that, When the electrode correction and bending device (1) includes a first cell gripping assembly (800), the first cell gripping assembly (800) includes a first driving member (801), a first placement member (802), a connecting member (803), and a second placement member (804). The first placement member (802) is connected to the second placement member (804) through the connecting member (803). The first driving member (801) is connected to the connecting member (803) to drive the first placement member (802) and the second placement member (804) to move; and / or, When the electrode correction bending device (1) includes a second cell gripping assembly (900), the second cell gripping assembly (900) includes a second driving member (901) and a third placement member (902), and the second driving member (901) is connected to the third placement member (902).

Images