A type of electrode correction device

Abstract

This application discloses a tab correction device, which includes a base and at least one tab correction module disposed on the base. The base has a first side and a second side that are opposite and parallel to each other. The tab correction module includes a fixture, a cell correction component, a tab correction component, and a drive component. By including the cell correction component in the tab correction device, the cell correction component moves towards the fixture stop under the drive of the drive component, thereby making the cell to be corrected contact with the fixture stop, ensuring that the cell to be corrected will not be displaced, which is beneficial to the subsequent correction accuracy and improves production efficiency.

Description

Technical Field

[0001] This invention relates to the field of automation technology in battery production machinery, and in particular to a tab alignment device. Background Technology

[0002] Cylindrical lithium-ion batteries are a common type of lithium-ion battery. During the battery production process, the tabs need to be welded. However, because the battery's position is random when it arrives, and the orientation of the battery relative to the transfer fixture is also random when it is loaded onto the transfer fixture by the feeding mechanism, the orientation of the tabs on the battery relative to the transfer fixture is also random. Therefore, the direction and position of the tabs must be quickly adjusted and accurately positioned before welding. If the direction and position of the tabs deviate, it will affect the welding quality and may even make it impossible to weld the tabs.

[0003] The electrode correction device in the relevant technology lacks a cell correction and positioning device. During the automatic battery assembly production process, the electrode is prone to misalignment when correcting the electrode, resulting in low electrode orientation and positioning accuracy, poor stability, and poor pass rate, which reduces work efficiency. Summary of the Invention

[0004] This application provides a tab alignment device to solve the problem that tab alignment devices in related technologies lack cell alignment and positioning devices, and that the tabs are prone to misalignment during the automatic battery assembly production process.

[0005] In a first aspect, embodiments of this application provide a tab correction device, including a base and at least one tab correction module disposed on the base, the base having a first side and a second side that are opposite and parallel to each other, and the tab correction module comprising:

[0006] A fixture is provided on the first side of the base. The fixture is provided with a material placement groove for holding the battery cell to be calibrated. The fixture includes a fixture stop block provided on one side of the material placement groove.

[0007] A cell calibration assembly is disposed on the side of the material feeding trough away from the fixture stop, and the cell calibration assembly is slidably connected to the base;

[0008] A tab calibration assembly is arranged around the material inlet, the tab calibration assembly is in contact with the tab of the battery cell to be calibrated, and the tab calibration assembly is slidably connected to the base;

[0009] A drive assembly is disposed on the second side of the base. The drive assembly is connected to the cell calibration assembly and the tab calibration assembly respectively. The cell calibration assembly moves toward the fixture stop or away from the fixture stop under the drive of the drive assembly. The tab calibration assembly moves toward the cell to be calibrated or away from the cell to be calibrated under the drive of the drive assembly.

[0010] In one embodiment, the battery cell to be calibrated includes a battery cell body, a first tab and a second tab, the battery cell body includes a first side and a second side disposed opposite to each other, and a third side and a fourth side disposed opposite to each other, the first tab is disposed on the first side, and the second tab is disposed on the second side;

[0011] The fixture includes a first gripper portion and a second gripper portion arranged opposite to each other. The first gripper portion, the second gripper portion, and the fixture stop block form the material placement groove. The fixture stop block is arranged close to the first side. The first gripper portion is in contact with the third side, and the second gripper portion is in contact with the fourth side.

[0012] In one embodiment, the cell calibration assembly includes a first slide rail, a cell calibration fixing member, and a cell calibration fixing block. The first slide rail is located on the second side of the cell body and extends toward the fixture stop. The cell calibration fixing member is slidably connected to the first slide rail, and the cell calibration fixing block is fixed to the side of the cell calibration fixing member away from the first slide rail.

[0013] The cell calibration fixing member moves back and forth along the first slide rail under the drive of the drive assembly, and the cell calibration fixing block moves back and forth along the first slide rail under the drive of the cell calibration fixing member, and pushes the cell to be calibrated, so that the cell to be calibrated comes into contact with the fixture stop block.

[0014] In one embodiment, the cell calibration fixing component includes a first cell calibration fixing sub-component and a second cell calibration fixing sub-component connected to each other, wherein the first cell calibration fixing sub-component is located on a first side of the base and the second cell calibration fixing sub-component is located on a second side of the base;

[0015] The cell calibration assembly further includes a fixing part, an elastic element, a second slide rail, a follower bearing fixing plate, and a follower bearing. The fixing part is fixedly connected to the second side of the base. The second cell calibration fixing component is connected to the fixing part through the elastic element. The second slide rail is located on the side of the second cell calibration fixing component away from the elastic element. The extension direction of the second slide rail is perpendicular to the extension direction of the elastic element. The follower bearing fixing plate is slidably connected to the second slide rail. The follower bearing is fixedly connected to the follower bearing fixing plate.

[0016] The follower bearing fixing plate is connected to the drive assembly. The follower bearing fixing plate moves back and forth along the second slide rail under the drive of the drive assembly. The follower bearing moves back and forth along the second slide rail under the drive of the follower bearing fixing plate and pushes the second cell correction fixing component, so that the elastic element is in an elastic deformation state.

[0017] In one embodiment, the drive assembly includes a first cylinder located on a second side of the base, and the follower bearing fixing plate is connected to the first cylinder;

[0018] The second cell calibration fixing component includes a pusher, which is located on the side of the second cell calibration fixing component near the follower bearing fixing plate;

[0019] When the follower bearing fixing plate moves towards the second cell calibration fixing component under the drive of the first cylinder, the follower bearing contacts the pusher, causing the elastic element to be in a compressed state. When the follower bearing fixing plate moves away from the second cell calibration fixing component under the drive of the first cylinder, the follower bearing does not contact the pusher, causing the elastic element to be in a flattened state, thereby driving the cell calibration fixing component to move towards the cell to be calibrated.

[0020] In one embodiment, the electrode correction assembly includes a first electrode correction sub-assembly and a second electrode correction sub-assembly. The first electrode correction sub-assembly includes a first electrode correction block and a first electrode correction fixing member. The second electrode correction sub-assembly includes a second electrode correction block, a second electrode correction fixing member, and a third slide rail.

[0021] The first tab correction block and the second tab correction block are arranged around the material feeding groove. Both the first tab correction block and the second tab correction block are in contact with the tab of the battery cell to be corrected. One end of the first tab correction fixing member is fixedly connected to the first tab correction block, and the other end of the first tab correction block is fixedly connected to the follower bearing fixing plate. The third slide rail is located on the third side of the battery cell body and extends towards the battery cell to be corrected. One end of the second tab correction fixing member is slidably connected to the third slide rail, and the other end of the second tab correction fixing member is fixedly connected to the second tab correction block.

[0022] The first tab correction fixing member moves back and forth along the second slide rail under the drive of the follower bearing fixing plate. The second tab correction fixing member is connected to the drive assembly and moves back and forth along the third slide rail under the drive of the drive assembly.

[0023] In one embodiment, the drive assembly includes a second cylinder connected to a second tab correction fixing member. The second tab correction fixing member moves back and forth along the third slide rail under the drive of the second cylinder, and the second tab correction block moves back and forth along the third slide rail under the drive of the second tab correction fixing member.

[0024] In one embodiment, the first tab correction block is located near the fourth side of the battery cell body, and the second tab correction block is located near the third side of the battery cell body. The first tab correction block and the second tab correction block are symmetrically arranged with respect to the fixture.

[0025] In one embodiment, the first tab correction block has a first protrusion and a second protrusion, and a first groove located between the first protrusion and the second protrusion; the second tab correction block has a third protrusion and a fourth protrusion, and a second groove located between the third protrusion and the fourth protrusion.

[0026] The first protrusion and the third protrusion are arranged opposite to each other, the second protrusion and the fourth protrusion are arranged opposite to each other, the first groove and the second groove are arranged opposite to each other, the first electrode is located between the first protrusion and the third protrusion, the second electrode is located between the second protrusion and the fourth protrusion, and the battery cell body is located between the first groove and the second groove.

[0027] In one embodiment, the tab correction device includes at least two tab correction modules, and adjacent tab correction modules are connected to each other by a connecting rod.

[0028] The beneficial effects of this application embodiment are as follows: This application embodiment provides a tab calibration device, which includes a base and at least one tab calibration module disposed on the base. The base has a first side and a second side that are opposite and parallel to each other. The tab calibration module includes a fixture, a cell calibration component, a tab calibration component, and a drive component. By including a cell calibration component in the tab calibration device, the cell calibration component moves towards or away from the fixture stop under the drive of the drive component, thereby allowing the cell to be calibrated to contact the fixture stop, ensuring that the cell to be calibrated will not be displaced, which is beneficial to the subsequent calibration accuracy and improves production efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the description of the embodiment will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the electrode correction device provided in the embodiments of this application;

[0031] Figure 2 This is a schematic diagram of the electrode correction device provided in an embodiment of this application from a first-view perspective.

[0032] Figure 3 This is a schematic diagram of the electrode correction device provided in the embodiment of this application from a second perspective.

[0033] Figure 4 This is a schematic diagram of the structure of the fixture provided in the embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the cell calibration assembly provided in the embodiments of this application;

[0035] Figure 6 This is a schematic diagram of the structure of the first electrode correction sub-assembly provided in the embodiments of this application;

[0036] Figure 7 This is a schematic diagram of the structure of the second tab corrector assembly provided in an embodiment of this application. Detailed Implementation

[0037] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, 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.

[0038] This embodiment provides a tab correction device. Detailed descriptions follow. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0039] Please combine Figures 1 to 7 An embodiment of the present invention provides a tab calibration device 1, the tab calibration device 1 including a base 10 and at least one tab calibration module 20 disposed on the base 10. The base 10 has a first side 10A and a second side 10B that are opposite and parallel to each other. The tab calibration module 20 includes a fixture 20A, a cell calibration component 20B, a tab calibration component 20C, and a drive component 20D. The fixture 20A is disposed on the first side 10A of the base 10. The fixture 20A has a material placement groove 20A1 for holding a cell 30A to be calibrated. The fixture 20A includes a fixture stop 20A2 disposed on one side of the material placement groove 20A1. The cell calibration component 20B is disposed on the side of the material placement groove 20A1 away from the fixture stop 20A2. The electrode correction assembly 20C is slidably connected to the base 10; the electrode correction assembly 20C is arranged around the material placement groove 20A1, and the electrode correction assembly 20C is in contact with the electrode 32A of the cell 30A to be corrected, and the electrode correction assembly 20C is slidably connected to the base 10; the drive assembly 20D is arranged on the second side 10B of the base 10, and the drive assembly 20D is connected to the cell correction assembly 20B and the electrode correction assembly 20C respectively. The cell correction assembly 20B moves towards the fixture stop 20A2 or away from the fixture stop 20A2 under the drive of the drive assembly 20D, and the electrode correction assembly 20C moves towards the cell 30A to be corrected or away from the cell 30A to be corrected under the drive of the drive assembly 20D.

[0040] Understandably, in related technologies, the tab calibration device lacks a cell calibration and positioning device. During the automated battery assembly process, the tabs are prone to shifting during calibration, resulting in low tab orientation and positioning accuracy, poor stability, and low throughput, thus reducing work efficiency. The tab calibration device provided in this embodiment includes a cell calibration component. Under the drive of the drive component, the cell calibration component moves towards or away from the fixture stop, thereby ensuring that the cell to be calibrated contacts the fixture stop, preventing displacement of the cell, which in turn improves subsequent calibration accuracy and increases production efficiency.

[0041] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ;in, Figure 1 This is a schematic diagram of the electrode correction device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the electrode correction device provided in an embodiment of this application from a first-view perspective. Figure 3 This is a schematic diagram of the electrode correction device provided in the embodiment of this application from a second perspective. Figure 4 This is a schematic diagram of the fixture provided in the embodiments of this application.

[0042] In this embodiment, the battery cell 30A to be calibrated includes a battery cell body 31A, a first tab 32A1, and a second tab 32A2. The battery cell body 31A includes a first side 31A1 and a second side 31A2 arranged opposite to each other, and a third side 31A3 and a fourth side 31A4 arranged opposite to each other. The first tab 32A1 is disposed on the first side 31A1, and the second tab 32A2 is disposed on the second side 31A2. The fixture 20A includes a first gripper portion 20A3 and a second gripper portion 20A4 arranged opposite to each other. The first gripper portion 20A3, the second gripper portion 20A4, and the fixture stop block 20A2 form the material placement groove 20A1. The fixture stop block 20A2 is disposed close to the first side 31A1. The first gripper portion 20A3 is in contact with the third side 31A3, and the second gripper portion 20A4 is in contact with the fourth side 31A4.

[0043] It is understood that in this embodiment, the first gripper 20A3, the second gripper 20A4, and the fixture stop 20A2 are arranged to form the material placement groove 20A1. The material placement groove 20A1 is used to carry the battery cell 30A to be calibrated. The fixture stop 20A2 is close to the first side 31A1. The first gripper 20A3 and the second gripper 20A4 are used to fix the battery cell 30A to be calibrated, thereby realizing the positioning and placement of the battery cell 30A to be calibrated.

[0044] Please combine Figure 1 , Figure 2 , Figure 3 and Figure 5 ;in, Figure 5 This is a schematic diagram of the structure of the cell calibration assembly provided in the embodiments of this application.

[0045] In this embodiment, the cell calibration assembly 20B includes a first slide rail 20B1, a cell calibration fixing member 20B2, and a cell calibration fixing block 20B3. The first slide rail 20B1 is located on the second side 10B of the cell body 31A and extends towards the fixture stop 20A2. The cell calibration fixing member 20B2 is slidably connected to the first slide rail 20B1, and the cell calibration fixing block 20B3 is fixed to the side of the cell calibration fixing member 20B2 away from the first slide rail 20B1. The cell calibration fixing member 20B2 moves back and forth along the first slide rail 20B1 under the drive of the drive assembly 20D, and the cell calibration fixing block 20B3 moves back and forth along the first slide rail 20B1 under the drive of the cell calibration fixing member 20B2, and pushes the cell 30A to be calibrated, so that the cell 30A to be calibrated comes into contact with the fixture stop 20A2.

[0046] Further, the cell calibration fixing component 20B2 includes a first cell calibration fixing sub-component 20B21 and a second cell calibration fixing sub-component 20B22 connected to each other. The first cell calibration fixing sub-component 20B21 is located on the first side 10A of the base 10, and the second cell calibration fixing sub-component 20B22 is located on the second side 10B of the base 10. The cell calibration assembly 20B also includes a fixing part 20B4, an elastic element 20B5, a second slide rail 20B6, a follower bearing fixing plate 20B7, and a follower bearing 20B8. The fixing part 20B4 is fixedly connected to the second side 10B of the base 10. The second cell calibration fixing sub-component 20B22 is connected to the fixing part 20B4 through the elastic element 20B5. The second slide rail 20B6 is located away from the second cell calibration fixing sub-component 20B22. On one side of the elastic element 20B5, the extension direction of the second slide rail 20B6 is perpendicular to the extension direction of the elastic element 20B5. The follower bearing fixing plate 20B7 is slidably connected to the second slide rail 20B6, and the follower bearing 20B8 is fixedly connected to the follower bearing fixing plate 20B7. The follower bearing fixing plate 20B7 is connected to the drive assembly 20D. Under the drive of the drive assembly 20D, the follower bearing fixing plate 20B7 moves back and forth along the second slide rail 20B6. Under the drive of the follower bearing fixing plate 20B7, the follower bearing 20B8 moves back and forth along the second slide rail 20B6 and pushes the second cell correction fixing sub-component 20B22, so that the elastic element 20B5 is in an elastic deformation state. It should be noted that the elastic element 20B5 includes, but is not limited to, a spring.

[0047] Specifically, the drive assembly 20D includes a first cylinder 20D1, which is located on the second side 10B of the base 10, and the follower bearing fixing plate 20B7 is connected to the first cylinder 20D1; the second cell calibration fixing component 20B22 includes a pusher 20B221, which is located on the side of the second cell calibration fixing component 20B22 close to the follower bearing fixing plate 20B7; when the follower bearing fixing plate 20B7 is driven by the first cylinder 20D1 towards the second cell calibration... When the fixed component 20B22 moves in the direction of movement, the follower bearing 20B8 contacts the pusher 20B221, causing the elastic element 20B5 to be in a compressed state. When the follower bearing fixing plate 20B7 moves away from the second cell correction fixing component 20B22 under the drive of the first cylinder 20D1, the follower bearing 20B8 and the pusher 20B221 are spaced apart, causing the elastic element 20B5 to be in a flattened state, thereby driving the cell correction fixing component 20B2 to move closer to the cell 30A to be corrected.

[0048] It is understood that in this embodiment, when the follower bearing fixing plate 20B7 moves towards the second cell correction fixing component 20B22 under the drive of the first cylinder 20D1, the follower bearing 20B8 contacts the pusher 20B221, causing the elastic element 20B5 to be in a compressed state. When the follower bearing fixing plate 20B7 moves away from the second cell correction fixing component 20B22 under the drive of the first cylinder 20D1, the follower bearing 20B8 and the pusher 20B221 are spaced apart, causing the elastic element 20B5 to be in a flattened state. This, in turn, drives the cell correction fixing component 20B2 to move towards the cell 30A to be corrected, thereby allowing the cell 30A to contact the fixture stop block 20A2, ensuring that the cell 30A to be corrected will not be displaced or tilted, which is beneficial to the subsequent correction accuracy and improves production efficiency.

[0049] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 ;in, Figure 6 This is a schematic diagram of the structure of the first electrode correction sub-assembly provided in the embodiments of this application; Figure 7 This is a schematic diagram of the structure of the second tab corrector assembly provided in an embodiment of this application.

[0050] The tab correction assembly 20C includes a first tab correction sub-assembly 21C and a second tab correction assembly 22C. The first tab correction assembly 21C includes a first tab correction block 21C1 and a first tab correction fixing member 21C2. The second tab correction assembly 22C includes a second tab correction block 22C1, a second tab correction fixing member 22C2, and a third slide rail 22C3. The first tab correction block 21C1 and the second tab correction block 22C1 are arranged around the material feeding groove 20A1. Both the first tab correction block 21C1 and the second tab correction block 22C1 are in contact with the tab 32A of the battery cell 30A to be corrected. One end of the first tab correction fixing member 21C2 is fixedly connected to the first tab correction block 21C1, and the other end of the first tab correction block 21C1 is fixedly connected to the follower bearing fixing plate 20B7. The third slide rail 22C3... The rail 22C3 is located on the third side 31A3 of the cell body 31A. The third rail 22C3 extends toward the cell 30A to be calibrated. One end of the second tab calibration fixing member 22C2 is slidably connected to the third rail 22C3, and the other end of the second tab calibration fixing member 22C2 is fixedly connected to the second tab calibration block 22C1. The first tab calibration fixing member 21C2 moves back and forth along the second rail 20B6 under the drive of the follower bearing fixing plate 20B7. The first tab calibration block 21C1 moves back and forth along the second rail 20B6 under the drive of the first tab calibration fixing member 21C2. The second tab calibration fixing member 22C2 is connected to the drive assembly 20D. The second tab calibration fixing member 22C2 moves back and forth along the third rail 22C3 under the drive of the drive assembly 20D.

[0051] Further, the drive assembly 20D includes a second cylinder 20D2, which is connected to the second tab correction fixing member 22C2. The second tab correction fixing member 22C2 moves back and forth along the third slide rail 22C3 under the drive of the second cylinder 20D2. The second tab correction block 22C1 moves back and forth along the third slide rail 22C3 under the drive of the second tab correction fixing member 22C2. Preferably, the first tab correction block 21C1 is close to the fourth side 31A4 of the cell body 31A, and the second tab correction block 22C1 is close to the third side 31A3 of the cell body 31A. The first tab correction block 21C1 and the second tab correction block 22C1 are symmetrically arranged with respect to the fixture 20A, that is, the... The first tab correction block 21C1 and the second tab correction block 22C1 are symmetrically arranged around the central axis of the fixture 20A. The distance between the first tab correction block 21C1 and the material storage groove 20A1 is the same as the distance between the second tab correction block 22C1 and the material storage groove 20A1. When the first tab correction block 21C1 moves back and forth along the second slide rail 20B6 under the drive of the first tab correction fixing member 21C2, and the second tab correction block 22C1 moves back and forth along the third slide rail 22C3 under the drive of the second tab correction fixing member 22C2, the first tab correction fixing member 21C2 and the second tab correction fixing member 22C2 can simultaneously play a correction role for the first tab 32A1 and the second tab 32A2.

[0052] Meanwhile, the horizontal height of the first tab correction block 21C1 and the horizontal height of the second tab correction block 22C1 remain unchanged and consistent, thereby preventing bending when the first tab 32A1 and the second tab 32A2 are being corrected.

[0053] Specifically, the first electrode adjustment block 21C1 has a first protrusion 21C11 and a second protrusion 21C12, and a first groove 21C13 located between the first protrusion 21C11 and the second protrusion 21C12; the second electrode adjustment block 22C1 has a third protrusion 22C11 and a fourth protrusion 22C12, and a second groove 22C13 located between the third protrusion 22C11 and the fourth protrusion 22C12; the first protrusion 21C11 and the third protrusion 22C12... The first and second protrusions 21C12 and the fourth protrusion 22C12 are arranged opposite to each other, the first and second grooves 21C13 are arranged opposite to each other, the first tab 32A1 is located between the first protrusion 21C11 and the third protrusion 22C11, the second tab 32A2 is located between the second protrusion 21C12 and the fourth protrusion 22C12, and the cell body 31A is located between the first groove 21C13 and the second groove 22C13.

[0054] It is understood that in this embodiment, by setting the first tab 32A1 between the first protrusion 21C11 and the third protrusion 22C11, the second tab 32A2 between the second protrusion 21C12 and the fourth protrusion 22C12, and the cell body 31A between the first groove 21C13 and the second groove 22C13, the tab calibration assembly 20C is made compact. Furthermore, the first tab calibration block 21C1 and the second tab calibration block 22C1 simultaneously push the tab of the cell 30A to be calibrated from both the left and right sides, thereby ensuring accurate tab calibration and improving product quality.

[0055] It should be noted that, in this embodiment, the tab correction device 1 includes at least two tab correction modules 20, and adjacent tab correction modules 20 are interconnected by connecting rods 20E. Specifically, the connecting rods 20E include a first connecting rod 20E1 and a second connecting rod 20E2. In adjacent tab correction modules 20, one end of the first connecting rod 20E1 is connected to the follower bearing fixing plate 20B7 of one tab correction module 20, and the other end of the first connecting rod 20E1 is connected to the follower bearing fixing plate 20B7 of the other tab correction module 20. This allows the first cylinder 20D1 to simultaneously drive both cell calibration components 20B and both first tab calibration sub-components 21C. In adjacent tab calibration modules 20, one end of the second connecting rod 20E2 is connected to the second tab calibration fixing member 22C2 of one tab calibration module 20, and the other end of the second connecting rod 20E2 is connected to the second tab calibration fixing member 22C2 of another tab calibration module 20. This allows the second cylinder 20D2 to simultaneously drive both second tab calibration sub-components 22C, thereby improving work efficiency.

[0056] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0057] The above provides a detailed description of the tab correction device provided in this embodiment. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea 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 correction device, characterized in that, The device includes a base (10) and at least one tab correction module (20) disposed on the base (10), the base (10) having a first side (10A) and a second side (10B) that are opposite and parallel to each other, and the tab correction module (20) includes: A fixture (20A) is disposed on the first side (10A) of the base (10). The fixture (20A) is provided with a material placement groove (20A1). The material placement groove (20A1) is used to carry the battery cell (30A) to be calibrated. The battery cell (30A) to be calibrated includes a battery cell body (31A), a first electrode (32A1) and a second electrode (32A2). The fixture (20A) includes a fixture stop (20A2) disposed on one side of the material placement groove (20A1). A cell calibration assembly (20B) is disposed on the side of the material placement groove (20A1) away from the fixture stop (20A2). The cell calibration assembly (20B) is slidably connected to the base (10). The cell calibration assembly (20B) includes a second cell calibration fixing sub-component (20B22), which is located on the second side (10B) of the base (10). A tab correction assembly (20C) is arranged around the material inlet (20A1). The tab correction assembly (20C) is in contact with the tab (32A) of the cell (30A) to be corrected. The tab correction assembly (20C) is slidably connected to the base (10). A drive assembly (20D) is disposed on the second side (10B) of the base (10). The drive assembly (20D) is connected to the cell calibration assembly (20B) and the tab calibration assembly (20C) respectively. The cell calibration assembly (20B) moves toward the fixture stop (20A2) or away from the fixture stop (20A2) under the drive of the drive assembly (20D). The tab calibration assembly (20C) moves toward the cell (30A) to be calibrated or away from the cell (30A) to be calibrated under the drive of the drive assembly (20D). The cell calibration assembly (20B) further includes a fixing part (20B4) fixed to the second side (10B) of the base (10), an elastic member (20B5) connected between the second cell calibration fixing sub-component (20B22) and the fixing part (20B4), a second slide rail (20B6) located on the side of the second cell calibration fixing sub-component (20B22) away from the elastic member (20B5), and a follower bearing fixing plate (20B7) connected to the drive assembly (20D) and slidable along the second slide rail (20B6). A follower bearing (20B8) is fixed on the follower bearing fixing plate (20B7). The drive assembly (20D) drives the follower bearing fixing plate (20B7) to slide back and forth along the second slide rail (20B6), so that the follower bearing (20B8) pushes the second cell calibration fixing sub-component (20B22) to compress the elastic member (20B5).

2. The electrode correction device according to claim 1, characterized in that, The battery cell body (31A) includes a first side (31A1) and a second side (31A2) disposed opposite to each other, as well as a third side (31A3) and a fourth side (31A4) disposed opposite to each other. The first electrode tab (32A1) is disposed on the first side (31A1), and the second electrode tab (32A2) is disposed on the second side (31A2). The fixture (20A) includes a first gripper portion (20A3) and a second gripper portion (20A4) disposed opposite to each other. The first gripper portion (20A3), the second gripper portion (20A4) and the fixture stop block (20A2) form the material placement groove (20A1). The fixture stop block (20A2) is disposed close to the first side (31A1). The first gripper portion (20A3) is in contact with the third side (31A3), and the second gripper portion (20A4) is in contact with the fourth side (31A4).

3. The electrode correction device according to claim 2, characterized in that, The cell calibration assembly (20B) includes a first slide rail (20B1), a cell calibration fixing member (20B2), and a cell calibration fixing block (20B3). The first slide rail (20B1) is located on the second side (10B) of the cell body (31A). The first slide rail (20B1) extends toward the fixture stop (20A2). The cell calibration fixing member (20B2) is slidably connected to the first slide rail (20B1). The cell calibration fixing block (20B3) is fixed to the side of the cell calibration fixing member (20B2) away from the first slide rail (20B1). The cell calibration fixing member (20B2) moves back and forth along the first slide rail (20B1) under the drive of the drive assembly (20D). The cell calibration fixing block (20B3) moves back and forth along the first slide rail (20B1) under the drive of the cell calibration fixing member (20B2) and pushes the cell to be calibrated (30A) so that the cell to be calibrated (30A) comes into contact with the fixture stop block (20A2).

4. The electrode correction device according to claim 3, characterized in that, The cell calibration fixing component (20B2) includes a first cell calibration fixing sub-component (20B21) and a second cell calibration fixing sub-component (20B22). The first cell calibration fixing sub-component (20B21) is located on the first side (10A) of the base (10), and the first cell calibration fixing sub-component (20B21) and the second cell calibration fixing sub-component (20B22) are interconnected. The extension direction of the second slide rail (20B6) is perpendicular to the extension direction of the elastic element (20B5).

5. The electrode correction device according to claim 4, characterized in that, The drive assembly (20D) includes a first cylinder (20D1), which is located on the second side (10B) of the base (10), and the follower bearing fixing plate (20B7) is connected to the first cylinder (20D1). The second cell calibration fixing component (20B22) includes a pusher (20B221) located on the side of the second cell calibration fixing component (20B22) near the follower bearing fixing plate (20B7); When the follower bearing fixing plate (20B7) moves towards the second cell calibration fixing component (20B22) under the drive of the first cylinder (20D1), the follower bearing (20B8) contacts the pusher (20B221), causing the elastic element (20B5) to be in a compressed state. When the follower bearing fixing plate (20B7) moves away from the second cell calibration fixing component (20B22) under the drive of the first cylinder (20D1), the follower bearing (20B8) and the pusher (20B221) are spaced apart, causing the elastic element (20B5) to be in a flattened state, thereby driving the cell calibration fixing component (20B2) to move towards the cell (30A) to be calibrated.

6. The electrode correction device according to claim 2, characterized in that, The electrode adjustment assembly (20C) includes a first electrode adjustment sub-assembly (21C) and a second electrode adjustment sub-assembly (22C). The first electrode adjustment sub-assembly (21C) includes a first electrode adjustment block (21C1) and a first electrode adjustment fixing member (21C2). The second electrode adjustment sub-assembly (22C) includes a second electrode adjustment block (22C1), a second electrode adjustment fixing member (22C2), and a third slide rail (22C3). The first tab correction block (21C1) and the second tab correction block (22C1) are arranged around the material inlet (20A1). Both the first tab correction block (21C1) and the second tab correction block (22C1) are in contact with the tab (32A) of the battery cell (30A) to be corrected. One end of the first tab correction fixing member (21C2) is fixedly connected to the first tab correction block (21C1), and the other end of the first tab correction block (21C1) is connected to the material inlet (20A1). The follower bearing fixing plate (20B7) is fixedly connected, the third slide rail (22C3) is located on the third side (31A3) of the cell body (31A), the third slide rail (22C3) extends toward the cell (30A) to be calibrated, one end of the second tab calibration fixing member (22C2) is slidably connected to the third slide rail (22C3), and the other end of the second tab calibration fixing member (22C2) is fixedly connected to the second tab calibration block (22C1); The first tab correction fixing member (21C2) moves back and forth along the second slide rail (20B6) under the drive of the follower bearing fixing plate (20B7). The first tab correction block (21C1) moves back and forth along the second slide rail (20B6) under the drive of the first tab correction fixing member (21C2). The second tab correction fixing member (22C2) is connected to the drive assembly (20D). The second tab correction fixing member (22C2) moves back and forth along the third slide rail (22C3) under the drive of the drive assembly (20D).

7. The electrode correction device according to claim 6, characterized in that, The drive assembly (20D) includes a second cylinder (20D2), which is connected to the second tab correction fixing member (22C2). The second tab correction fixing member (22C2) moves back and forth along the third slide rail (22C3) under the drive of the second cylinder (20D2), and the second tab correction block (22C1) moves back and forth along the third slide rail (22C3) under the drive of the second tab correction fixing member (22C2).

8. The electrode correction device according to claim 6, characterized in that, The first tab correction block (21C1) is located near the fourth side (31A4) of the cell body (31A), and the second tab correction block (22C1) is located near the third side (31A3) of the cell body (31A). The first tab correction block (21C1) and the second tab correction block (22C1) are symmetrically arranged with respect to the fixture (20A).

9. The electrode correction device according to claim 8, characterized in that, The first electrode correction block (21C1) is provided with a first protrusion (21C11) and a second protrusion (21C12), and a first groove (21C13) located between the first protrusion (21C11) and the second protrusion (21C12). The second electrode correction block (22C1) is provided with a third protrusion (22C11) and a fourth protrusion (22C12), and a second groove (22C13) located between the third protrusion (22C11) and the fourth protrusion (22C12). The first protrusion (21C11) and the third protrusion (22C11) are arranged opposite to each other, the second protrusion (21C12) and the fourth protrusion (22C12) are arranged opposite to each other, the first groove (21C13) and the second groove (22C13) are arranged opposite to each other, the first electrode (32A1) is located between the first protrusion (21C11) and the third protrusion (22C11), the second electrode (32A2) is located between the second protrusion (21C12) and the fourth protrusion (22C12), and the cell body (31A) is located between the first groove (21C13) and the second groove (22C13).

10. The electrode correction device according to any one of claims 1-9, characterized in that, The tab correction device includes at least two tab correction modules (20), and adjacent tab correction modules (20) are connected to each other by a connecting rod (20E).

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