Battery tab removal device

Abstract

A battery tab cutting device includes a clamping assembly (1), a cutting assembly (2), and a linkage assembly. The clamping assembly (1) is provided with a rack (34). The cutting assembly (2) includes a cutting substrate (21), a swing arm (22), and a cutter (23). The cutting substrate (21), the swing arm (22), and the cutter (23) are connected in sequence. The cutter (23) is oscillatingly mounted on the cutting substrate (21) via the swing arm (22). The linkage assembly includes a first linkage member (31), a second linkage member (32), and a third linkage member. (33) and rack (34), the rack (34) is disposed on the clamping assembly (1), the cutting substrate (21) is rotatably sleeved on the first linkage member (31), the first linkage member (31) is provided with a first helical tooth segment (311) and a second helical tooth segment (312), the second linkage member (32) is slidably sleeved on the rocker arm (22), the second linkage member (32) is screwed to the first helical tooth segment (311), and the two ends of the third linkage member (33) are respectively engaged with the second helical tooth segment (312) and the rack (34).

Description

Technical Field

[0001] This application relates to the field of battery recycling technology, for example to a battery tab removal device. Background Technology

[0002] The mainstream recycling method for lithium batteries mainly involves directly crushing them, then sorting out the cells and recovering useful metal materials from the battery fragments. However, direct crushing damages the lithium battery cells, affecting the recycling of used lithium batteries. To address this issue, related technologies are continuously improving battery recycling methods. For example, patent document CN106129518B discloses a method and apparatus for disassembling lithium battery casings. Specifically, it involves separating the internal cells and cover plate from the outer casing before processing the internal cells. This recycling method can ensure the integrity of the internal cells and effectively guarantee recycling efficiency, but the overall operational efficiency of battery disassembly is not high. Summary of the Invention

[0003] This application provides a battery tab removal device, in which the pulling off of the battery cover and the removal of the tabs can be carried out in conjunction, effectively improving the overall efficiency of battery disassembly.

[0004] This application provides a battery tab removal device, comprising:

[0005] The clamping assembly is configured as a cover plate for clamping the battery;

[0006] A cutting assembly includes a cutting substrate, a swing arm, and a cutter, wherein the cutting substrate, the swing arm, and the cutter are connected in sequence, and the cutter is oscillatingly mounted on the cutting substrate via the swing arm;

[0007] The linkage assembly includes a first linkage member, a second linkage member, a third linkage member, and a rack. The rack is disposed on the clamping assembly, and the cutting substrate is fixedly disposed. The first linkage member is rotatably disposed through the cutting substrate. The first linkage member is provided with a first helical tooth segment and a second helical tooth segment. The second linkage member is connected to the rocker arm and screwed to the first helical tooth segment. The two ends of the third linkage member are respectively engaged and connected to the second helical tooth segment and the rack.

[0008] The first linkage rotates relative to the second linkage about a first rotation direction, and is configured to drive the clamping assembly to move in a first moving direction through the third linkage, while simultaneously driving the second linkage to move relative to the cutting plate in a second moving direction and causing the swing arm to swing so that the cutter cuts the battery tabs.

[0009] Optionally, the first end of the third linkage is provided with a first gear that meshes with the second helical tooth segment, and the second end of the third linkage is provided with a second gear that meshes with the rack.

[0010] Optionally, the first linkage member has a smooth section between the first helical tooth segment and the second helical tooth segment, and the cutting substrate has a rotating hole, wherein the smooth section is configured to rotate within the rotating hole.

[0011] Optionally, the second linkage includes a first connector and a second connector. The second connector is connected to one side of the first connector via a connecting rod. The first connector has a first screw hole and is screwed to the first helical tooth segment through the first screw hole.

[0012] The first connector moves relative to the first helical tooth segment in the second moving direction and is configured to drive the swing arm to swing sequentially through the connecting rod and the second connector so that the cutter cuts the battery tabs.

[0013] Optionally, the cutting substrate is provided with the swing arm on both sides of the clamping assembly, and the first connector is provided with a second connector corresponding to the swing arm through the connecting rod.

[0014] Optionally, the first connector is fixedly connected to the first end of the connecting rod, and the second connector is rotatably connected to the second end of the connecting rod. The second connector has a sliding hole, and the second connector is slidably sleeved on the swing rod through the sliding hole.

[0015] Optionally, the first connector is rotatably connected to the first end of the connecting rod, the second connector is rotatably connected to the second end of the connecting rod, and the second connector is fixedly connected to the swing arm.

[0016] Optionally, the clamping assembly includes a clamping base plate and a pair of clamping plates disposed on the clamping base plate, the two clamping plates being configured to jointly clamp the battery, and the rack being disposed on the clamping base plate.

[0017] Optionally, the clamping assembly further includes a clamping transmission assembly. The clamping base plate is provided with a slide rail, and each clamping plate is provided with a sliding head that slides with the slide rail. The clamping transmission assembly is configured to drive the two clamping plates to move closer to each other to clamp the battery, or to move away from each other to release the battery.

[0018] Optionally, the clamping transmission assembly includes a driven bevel gear, a driving bevel gear, and a screw. The screw, the driven bevel gear, and the sliding head are arranged in a one-to-one correspondence. The sliding head is screwed to the first end of the screw, the second end of the screw is connected to the driven bevel gear, and the driving bevel gear meshes with two driven bevel gears. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the process by which the battery tab cutting device provided in this application clamps the battery cover and cuts off the tabs;

[0020] Figure 2 This is a schematic diagram of the battery tab removal device provided in this application from one perspective;

[0021] Figure 3 This is a schematic diagram of the battery tab removal device provided in this application from another perspective;

[0022] Figure 4 This is a schematic diagram of the motion of a cutting component provided in this application;

[0023] Figure 5 This is a schematic diagram of the movement of another cutting component provided in this application.

[0024] In the picture:

[0025] 1. Clamping assembly; 11. Clamping base plate; 112. Slide rail; 12. Clamping plate; 121. Sliding head; 1211. Third screw hole; 13. Clamping transmission assembly; 131. Driven bevel gear; 132. Driving bevel gear; 133. Screw; 14. Second drive motor;

[0026] 2. Cutting assembly; 21. Cutting substrate; 211. Rotating hole; 22. Rocker arm; 23. Cutting blade;

[0027] 31. First linkage component; 311. First helical tooth segment; 312. Second helical tooth segment; 313. Smooth segment; 32. Second linkage component; 321. First connector; 3211. First screw hole; 322. Second connector; 3221. Sliding hole; 323. Connecting rod; 33. Third linkage component; 331. First gear; 332. Second gear; 34. Rack; 35. First drive motor;

[0028] 41. Cover plate; 42. Housing; 43. Electrode. Detailed Implementation

[0029] The present application will now be described in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit its scope. For ease of description, only structures relevant to the present application are shown in the accompanying drawings.

[0030] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0033] In related technologies, pulling the battery cover off the casing and cutting the tabs are two separate steps in the battery recycling process, which to some extent affects the overall operational efficiency of battery dismantling. The battery tab cutting device provided in this application links the two steps of pulling off the battery cover and cutting the tabs together, effectively improving the overall operational efficiency of battery dismantling.

[0034] This embodiment provides a battery tab removal device. (Refer to...) Figures 1 to 4As shown, the battery tab cutting device includes a clamping assembly 1, a cutting assembly 2, and a linkage assembly. The clamping assembly 1 is configured as a cover plate 41 for clamping the battery. The cutting assembly 2 includes a cutting substrate 21, a swing rod 22, and a cutter 23, which are connected sequentially. The cutter 23 is oscillatingly mounted on the cutting substrate 21 via the swing rod 22. The linkage assembly includes a first linkage member 31, a second linkage member 32, a third linkage member 33, and a rack 34. The rack 34 is mounted on the clamping assembly 1, and the cutting substrate 21 is fixedly mounted. The first linkage member 31 is rotatably inserted through the cutting substrate 21. The linkage 31 is provided with a first helical tooth segment 311 and a second helical tooth segment 312. The second linkage 32 is connected to the swing arm 22 and screwed to the first helical tooth segment 311. The two ends of the third linkage 33 are respectively engaged with the second helical tooth segment 312 and the rack 34. The first linkage 31 can rotate relative to the second linkage 32 around the first rotation direction and drive the clamping assembly 1 to move in the first moving direction through the third linkage 33. At the same time, it can drive the second linkage 32 to move relative to the cutting substrate 21 in the first moving direction and drive the swing arm 22 to swing so that the cutter 23 cuts the battery tab 43.

[0035] In the attached diagram, direction a is the first rotation direction; direction b1 is the first movement direction, which is also the direction that pulls the cover plate 41 away from the housing 42; direction b2 is the second movement direction, which is also the direction in which the second linkage 32 moves away from the cutting substrate 21; and direction c is the downward swing direction of the cutter 23.

[0036] By way of example, the beneficial effects of the battery tab removal device are described below in conjunction with the usage process of the device.

[0037] When the battery tab cutting device is used to cut off the tab 43, the cover plate 41 of the battery to be removed is clamped by the clamping assembly 1. Then, the first linkage 31 is controlled to rotate relative to the second linkage 32 around the first rotation direction, that is, the direction a in the figure. Since the two ends of the third linkage 33 are respectively engaged and connected with the second helical tooth segment 312 and the rack 34, the clamping assembly 1 holding the cover plate 41 is driven to move in the first moving direction, that is, the direction in which the cover plate 41 is pulled away from the housing 42, that is, the direction b in the figure. The cover plate 41 is pulled away from the housing 42, thereby exposing the tab 43 connected between the cover plate 41 and the housing 42. Simultaneously, since the second linkage 32 is slidably sleeved on the swing arm 22 and screwed to the first helical tooth segment 311, the rotation of the first linkage 31 relative to the second linkage 32 around the first rotation direction can drive the second linkage 32 to move relative to the cutting substrate 21 in the second moving direction, i.e., direction c in the figure. This increases the distance between the second linkage 32 and the first linkage 31. Under the action of the second linkage 32, the swing arm 22 swings downward in the direction c. Subsequently, the swing arm 22 aligns with the tab 43 and cuts the tab 43. The above process of pulling away the cover plate 41 and cutting off the tab 43 can be carried out in a coordinated manner, thereby effectively improving the overall efficiency of battery disassembly.

[0038] The first end of the swing arm 22 is hinged to the cutting substrate 21 via a hinge shaft (not shown), and the second end of the swing arm 22 is fixedly connected to the cutter 23.

[0039] In this embodiment, the first end of the third linkage 33 is provided with a first gear 331 that meshes with the second helical tooth segment 312, and the second end of the third linkage 33 is provided with a second gear 332 that meshes with the rack 34. The first gear 331 and the second helical tooth segment 312 form a worm gear structure at the first end of the third linkage 33, and the second gear 332 and the rack 34 form a gear and rack structure at the second end of the third linkage 33. When the first linkage 31 rotates around the first rotation direction, the meshing between the second helical tooth segment 312 and the first gear 331 enables the third linkage 33 to rotate, driving the second gear 332 to rotate, and then the meshing between the second gear 332 and the rack 34 drives the clamping assembly 1 to move along the first moving direction.

[0040] The first linkage 31 has a smooth section 313 between the first helical tooth segment 311 and the second helical tooth segment 312. The cutting substrate 21 has a rotating hole 211, and the smooth section 313 is configured to rotate within the rotating hole 211. By providing the smooth section 313 in the first linkage 31, the smooth section 313 can achieve a reliable and smooth rotational engagement with the rotating hole 211, thereby ensuring that the cutting substrate 21 can rotate smoothly relative to the first linkage 31.

[0041] In some alternative embodiments, a bearing is provided between the cutting substrate 21 and the smoothing section 313. The outer ring of the bearing is fixed to the cutting substrate 21, and the inner ring of the bearing is fixed to the smoothing section 313. The cutting substrate 21 can also achieve a rotatable connection with the smoothing section 313 through the bearing.

[0042] The second linkage 32 includes a first connector 321 and a second connector 322. The second connector 322 is connected to one side of the first connector 321 via a connecting rod 323. The first connector 321 has a first screw hole 3211. The first connector 321 is sleeved on the first helical tooth segment 311 through the first screw hole 3211 and screwed onto the first helical tooth segment 311. A screw-nut structure can be formed between the first screw hole 3211 and the first helical tooth segment 311. When the first linkage 31 rotates around the first rotation direction, the meshing of the first screw hole 3211 and the first helical tooth segment 311 allows the first linkage 31 to move relative to the second linkage 32 along the first movement direction. This causes the swing arm 22 to swing through the connecting rod 323 and the second connector 322, so that the cutter 23 cuts the battery tabs 43.

[0043] Optionally, refer to Figure 4 As shown, the first connector 321 is fixedly connected to the first end of the connecting rod 323, and the second connector 322 is rotatably connected to the second end of the connecting rod 323. The second connector 322 has a sliding hole 3221, and the second connector 322 is slidably sleeved on the swing rod 22 through the sliding hole 3221. During the process of the first linkage 31 moving relative to the second linkage 32 in the first moving direction, the first connector 321 drives the swing rod 22 to swing downward through the connecting rod 323 and the second connector 322. During the process, the second connector 322 can adapt to the rotation relative to the connecting rod 323. This arrangement allows the size of the sliding hole 3221 on the second connector 322 to be adapted to the radial size of the swing rod 22. During the sliding process of the second connector 322 relative to the swing rod 22, the axes of the two can be collinear, making the swing of the swing rod 22 more stable.

[0044] Optionally, refer to Figure 5 As shown, the first connector 321 is rotatably connected to the first end of the connecting rod 323, and the second connector 322 is rotatably connected to the second end of the connecting rod 323. The second connector 322 is fixedly connected to the swing rod 22. In this embodiment, there is no need to open a sliding hole. The second connector 322 is directly fixed to the swing rod 22. During the movement of the first linkage 31 relative to the second linkage 32 in the first moving direction, the first connector 321 and the second connector 322 rotate relative to the connecting rod 323 at the same time, so that the second connector 322 drives the swing rod 22 to swing downward. The above structure is similar to the extension and retraction structure of a camera tripod, and can also reliably and effectively realize the downward swing of the swing rod 22 so that the cutter 23 cuts the battery tabs 43.

[0045] In this embodiment, the cutting substrate 21 is provided with swing arms 22 on both sides of the clamping assembly 1, and the first connector 321 is provided with a plurality of second connectors 322 corresponding one-to-one with the swing arms 22. Referring to the attached drawings, the upper and lower ends of the first connector 321 are connected to the second connectors 322 through connecting rods 323. Each of the upper and lower ends of the cutting substrate 21 is provided with a swing arm 22, and the two swing arms 22 respectively pass through the sliding holes 3221 of the two second connectors 322. With this configuration, when cutting the tab 43, cutting can be performed on both the upper and lower sides of the tab 43, further improving the reliability and effectiveness of the tab 43 cutting.

[0046] The linkage assembly also includes a first drive motor 35, the output shaft of which is fixedly connected to the first linkage member 31. The output shaft of the first drive motor 35 can be fixedly connected to the first linkage member 31 via a coupling. By setting the first drive motor 35, the automatic rotation of the first linkage member 31 can be achieved, improving the overall automation level of the device.

[0047] Continue to refer to Figures 1 to 3 As shown, the clamping assembly 1 includes a clamping base plate 11 and a pair of clamping plates 12 disposed on the clamping base plate 11. The two clamping plates 12 are configured to jointly clamp the battery, and a rack 34 is disposed on the clamping base plate 11. The two clamping plates 12 can move closer to or further away from each other relative to the clamping base plate 11. When the two clamping plates 12 are close to each other, they can reliably clamp and fix the cover plate 41 of the battery.

[0048] The clamping assembly 1 also includes a clamping transmission assembly 13. A slide rail 112 is provided on the clamping base plate 11. Each clamping plate 12 is provided with a sliding head 121 that slidably engages with the slide rail 112. The clamping transmission assembly 13 can drive the two clamping plates 12 to move closer together to clamp the battery, or move them apart to release the battery. For example, the clamping transmission assembly 13 can drive the sliding head 121 to slide along the slide rail 112, so that the two clamping plates 12 move closer together to clamp the battery, or move them apart to release the battery. By setting the slide rail 112 and the sliding head 121, the direction of movement of the clamping plates 12 relative to the clamping base plate 11 can be strictly limited, further improving the reliability of the clamping of the two clamping plates 12.

[0049] In this embodiment, the clamping transmission assembly 13 includes a driven bevel gear 131, a driving bevel gear 132, and a screw 133. The screw 133, the driven bevel gear 131, and the sliding head 121 are arranged in a one-to-one correspondence. The sliding head 121 is screwed to the first end of the screw 133, and the second end of the screw 133 is connected to the driven bevel gear 131. The driving bevel gear 132 meshes with both driven bevel gears 131 simultaneously. In this embodiment, by driving the driving bevel gear 132 to rotate, the two driven bevel gears 131 meshing with it can be driven to rotate, thereby driving the screw 133 connected to the driven bevel gear 131 to rotate. Since the sliding head 121 is sleeved on the screw 133 and screwed to the screw 133, and the sliding head 121 is also slidably connected to the slide rail 112, the rotation of the screw 133 can drive the sliding head 121 to slide on the slide rail 112, thereby realizing the movement drive of the clamping plate 12.

[0050] The sliding head 121 has a third threaded hole 1211, through which it is sleeved onto the screw 133 and screwed together. The screw 133 and the sliding head 121 form a lead screw and nut structure through the third threaded hole 1211. With the threaded engagement between the third threaded hole 1211 and the screw 133, the rotation of the screw 133 drives the sliding head 121 to slide on the slide rail 112.

[0051] The clamping assembly 1 also includes a second drive motor 14, and a drive bevel gear 132 is fixedly sleeved on the output shaft of the second drive motor 14. The drive bevel gear 132 can be fixedly sleeved on the output shaft of the second drive motor 14 via a key connection. By setting the second drive motor 14, the automatic rotation of the drive bevel gear 132 can be realized, further improving the overall automation level of the device.

[0052] When using the battery tab cutting device provided in this application, the battery cover plate is clamped on both sides of its long side by a clamping assembly, thus holding the cover plate in place. Then, the first linkage member is controlled to rotate relative to the second linkage member around a first rotation direction. Since the two ends of the third linkage member are respectively engaged with the second helical tooth segment and the rack, the clamping assembly holding the cover plate is driven to move in the first movement direction, i.e., the direction in which the battery cover plate is pulled away from the housing, thus pulling the cover plate away from the housing and exposing the tabs connecting the cover plate and the housing. Simultaneously, since the second linkage member is slidably sleeved on the swing arm and screwed to the first helical tooth segment, the rotation of the first linkage member relative to the second linkage member around the first rotation direction drives the second linkage member to move relative to the cutting substrate in the same second movement direction, increasing the distance between the second and first linkage members. Under the action of the second linkage member, the swing arm swings downward, aligning with the tabs and cutting them. The above process achieves the simultaneous pulling of the cover plate away from the housing and cutting of the tabs, allowing the pulling of the cover plate and the cutting of the tabs to be carried out in a coordinated manner, thereby effectively improving the overall efficiency of battery disassembly.

[0053] The operation of the battery tab removal device is described below as an example.

[0054] When the tab 43 needs to be removed, the second drive motor 14 drives the active bevel gear 132 to rotate, and the two driven bevel gears 131 meshing with the active bevel gear 132 rotate, driving the two screws 133 to rotate, causing the two sliding heads 121 to move synchronously in opposite directions, thereby causing the two clamping plates 12 to move towards the sides of the long side of the cover plate 41, clamping the sides of the long side of the cover plate 41.

[0055] After clamping the cover plate 41, the first drive motor 35 drives the first linkage 31 to rotate, the second helical tooth segment 312 drives the first gear 331 to rotate, and drives the second gear 332 of the third linkage 33 to rotate. Under the meshing cooperation of the second gear 332 and the rack 34, the clamping base plate 11 moves away from the battery housing 42, thereby moving the clamping plate 12 that clamps the cover plate 41 away from the housing 42, pulling the pre-cut cover plate 41 away from the housing 42 and exposing the electrode tab 43.

[0056] Simultaneously, the first linkage 31 rotates, and under the threaded engagement of the first helical tooth segment 311 and the first screw hole 3211 of the first connector 321, the second linkage 32 moves as a whole toward one end of the battery. This causes the two opposing swing rods 22 located at one end of the tab 43 to rotate along the hinge point with the cutting substrate 21, causing the two swing rods 22 to rotate toward the tab 43. The two cutters 23 at the ends of the swing rods 22 move synchronously toward the tab 43 and cut it off. This achieves the simultaneous pulling of the cover plate 41 away from the housing 42 and cutting off the tab 43. The above process, in which the pulling away of the cover plate 41 and the cutting off of the tab 43 can be carried out in a coordinated manner, effectively improves the overall efficiency of battery disassembly.

[0057] In summary, the battery tab removal device provided in this embodiment, by setting a linkage component, the first linkage member 31 rotates relative to the second linkage member 32 around the first rotation direction, the second helical tooth segment 312 meshes with the first gear 331 to make the third linkage member 33 rotate, driving the second gear 332 to rotate, and through the meshing between the second gear 332 and the rack 34, the clamping component 1 is driven to move along the first moving direction, thereby pulling the cover plate 41 away from the housing 42 and exposing the tab 43 connecting the cover plate 41 and the housing 42. Meanwhile, the second linkage 32 is slidably sleeved on the swing arm 22 and screwed to the first helical tooth segment 311. The rotation of the first linkage 31 relative to the second linkage 32 around the first rotation direction can drive the second linkage 32 to move relative to the cutting substrate 21 in the second movement direction. Under the action of the second linkage 32, the swing arm 22 swings downward. Then the swing arm 22 aligns with the tab 43 and cuts the tab 43. In the whole process, the pulling away of the battery cover plate 41 and the cutting of the tab 43 can be carried out in a coordinated manner, thereby effectively improving the overall operation efficiency of battery disassembly.

Claims

1. A battery tab cutting device, characterized in that, include: The clamping assembly (1) is configured as a cover plate (41) for clamping the battery; The cutting assembly (2) includes a cutting substrate (21), a swing arm (22) and a cutter (23). The cutting substrate (21), the swing arm (22) and the cutter (23) are connected in sequence. The cutter (23) can be swung on the cutting substrate (21) via the swing arm (22). The linkage assembly includes a first linkage member (31), a second linkage member (32), a third linkage member (33), and a rack (34). The rack (34) is disposed on the clamping assembly (1). The cutting substrate (21) is fixedly disposed. The first linkage member (31) is rotatably disposed on the cutting substrate (21). The first linkage member (31) is provided with a first helical tooth segment (311) and a second helical tooth segment (312). The second linkage member (32) is connected to the swing rod (22). The second linkage member (32) is screwed to the first helical tooth segment (311). The two ends of the third linkage member (33) are respectively engaged and connected to the second helical tooth segment (312) and the rack (34). The first linkage (31) rotates relative to the second linkage (32) about a first rotation direction, and is configured to drive the clamping assembly (1) to move in a first moving direction through the third linkage (33) so as to expose the tab (43) connected between the cover plate (41) and the housing (42); wherein, the first moving direction is the direction in which the cover plate (41) is pulled away relative to the housing (42); At the same time, the second linkage (32) is driven to move relative to the cutting substrate (21) in the second moving direction and drive the swing arm (22) to swing so that the cutter (23) cuts the battery tab (43).

2. The battery tab removal device according to claim 1, characterized in that, The first end of the third linkage (33) is provided with a first gear (331) that meshes with the second helical tooth segment (312), and the second end of the third linkage (33) is provided with a second gear (332) that meshes with the rack (34).

3. The battery tab removal device according to claim 1, characterized in that, The first linkage (31) has a smooth section (313) between the first helical tooth segment (311) and the second helical tooth segment (312). The cutting substrate (21) has a rotating hole (211), and the smooth section (313) is configured to rotate within the rotating hole (211).

4. The battery tab removal device according to claim 1, characterized in that, The second linkage (32) includes a first connector (321), a second connector (322), and a connecting rod (323). The second connector (322) is connected to one side of the first connector (321) through the connecting rod (323). The first connector (321) has a first screw hole (3211) and is screwed to the first helical tooth segment (311) through the first screw hole (3211). The first connector (321) moves relative to the first helical tooth segment (311) in the second moving direction, and is configured to drive the swing arm (22) to swing in sequence through the connecting rod (323) and the second connector (322) so that the cutter (23) cuts the battery tab (43).

5. The battery tab removal device according to claim 4, characterized in that, The cutting substrate (21) is provided with swing rods (22) on both sides of the clamping assembly (1), and the first connector (321) is provided with a second connector (322) corresponding to the swing rod (22) through the connecting rod (323).

6. The battery tab removal device according to claim 4, characterized in that, The first connector (321) is fixedly connected to the first end of the connecting rod (323), and the second connector (322) is rotatably connected to the second end of the connecting rod (323). The second connector (322) has a sliding hole (3221), and the second connector (322) is slidably sleeved on the swing rod (22) through the sliding hole (3221).

7. The battery tab removal device according to claim 4, characterized in that, The first connector (321) is rotatably connected to the first end of the connecting rod (323), the second connector (322) is rotatably connected to the second end of the connecting rod (323), and the second connector (322) is fixedly connected to the swing rod (22).

8. The battery tab removal device according to claim 1, characterized in that, The clamping assembly (1) includes a clamping base plate (11) and a pair of clamping plates (12) disposed on the clamping base plate (11). The two clamping plates (12) are configured to jointly clamp the cover plate (41) of the battery. The rack (34) is disposed on the clamping base plate (11).

9. The battery tab removal device according to claim 8, characterized in that, The clamping assembly (1) further includes a clamping transmission assembly (13). A slide rail (112) is provided on the clamping base plate (11). Each clamping plate (12) is provided with a sliding head (121) that slides with the slide rail (112). The clamping transmission assembly (13) is configured to drive the two clamping plates (12) to move closer to each other to clamp the cover plate (41) of the battery; or to move away from each other to release the cover plate (41) of the battery.

10. The battery tab removal device according to claim 9, characterized in that, The clamping transmission assembly (13) includes a driven bevel gear (131), a driving bevel gear (132), and a screw (133). The screw (133), the driven bevel gear (131), and the sliding head (121) are arranged in a one-to-one correspondence. The sliding head (121) is screwed to the first end of the screw (133), and the second end of the screw (133) is connected to the driven bevel gear (131). The driving bevel gear (132) meshes with the two driven bevel gears (131).

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