Battery cell pre-tab folding device

Abstract

The application discloses a kind of pre-folding tab devices of battery cell.The pre-folding tab devices of battery cell, including mounting plate, positioning and pressing mechanism and bending mechanism, positioning and pressing mechanism is set in mounting plate, and positioning and pressing mechanism is used to resist and position battery cell body.Bending mechanism is set in mounting plate, and is used to bend tab and top cover pin.The technical scheme provided in the application can accurately bend tab and top cover pin, and protect battery cell body from damage.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery cells, in particular to a battery cell pre-folding tab device. BACKGROUND

[0002] A tab is an important component of a lithium ion battery cell. The tab is a metal conductor that leads the positive and negative electrodes out of the battery cell, that is, the contact point of the battery during charging and discharging. In the production process, a film needs to be attached to the tab to prevent short circuiting between the metal strip and the aluminum plastic film during battery packaging. The film is then sealed and bonded to the aluminum plastic film by heating to prevent liquid leakage. After the film is attached, a bending process is required.

[0003] However, the existing bending device cannot ensure the bending accuracy of the tab, cannot bend the top cover pin, and can damage the battery body during the bending operation. SUMMARY

[0004] The application provides a battery cell pre-folding tab device that can accurately bend the tab and the top cover pin while protecting the battery body.

[0005] The application provides a battery cell pre-folding tab device, which includes a mounting plate, a positioning and pressing mechanism, and a bending mechanism. The positioning and pressing mechanism is arranged on the mounting plate and is used to abut and position the battery body. The bending mechanism is arranged on the mounting plate and is used to bend the tab and the top cover pin.

[0006] In the above-mentioned solution, a battery cell pre-folding tab device is provided, which can accurately bend the tab and the top cover pin. The battery cell pre-folding tab device includes a mounting plate, a positioning and pressing mechanism, and a bending mechanism. The positioning and pressing mechanism and the bending mechanism are arranged on the mounting plate. When the jig carrying the battery cell is in place, the positioning and pressing mechanism abuts and positions the battery body, and the bending mechanism bends the tab and the top cover pin of the battery cell. Since the battery body is positioned and fixed during or before the bending operation, the action of the bending mechanism will not damage the battery body, avoiding the offset of the battery body and affecting the bending accuracy of the tab and the top cover pin of the battery cell, thereby ensuring the bending accuracy of the tab.

[0007] In one possible implementation, the positioning and pressing mechanism includes:

[0008] a pressing assembly for abutting the surface of the battery cell, the pressing assembly being arranged on the mounting plate;

[0009] an end positioning assembly for abutting the end of the battery cell, the end positioning assembly being arranged on the mounting plate; and a top cover positioning assembly for abutting the top cover of the battery cell, the top cover positioning assembly being arranged on the mounting plate.

[0010] In the above scheme, the specific structure of the positioning and pressing mechanism is provided, which includes a pressing assembly, an end positioning assembly and a top cover positioning assembly. The pressing assembly, the end positioning assembly and the top cover positioning assembly are respectively used for abutting against the surface of the battery cell, the end of the battery cell and the top cover of the battery cell. When the tabs and the top cover pins are bent, the pressing assembly, the end positioning assembly and the top cover positioning assembly can abut against the surface of the battery cell, the end of the battery cell and the top cover of the battery cell, so as to avoid that the load of the bending mechanism causes damage to the battery cell body when the bending action is performed, and the bending precision of the tabs and the top cover pins is ensured.

[0011] Optionally, in a possible implementation, the pressing assembly includes a pressing driving mechanism and a pressing part, the pressing driving mechanism is arranged on the mounting plate and drives the pressing part to move along the thickness direction of the battery cell, so as to make the pressing part abut against or move away from the upper surface of the battery cell.

[0012] Optionally, in a possible implementation, the end positioning assembly includes an end positioning block and a first positioning driving mechanism, the first positioning driving mechanism is arranged on the mounting plate and drives the end positioning block to move along the width direction of the battery cell, so as to make the back surface of the end positioning block abut against or move away from the end of the battery cell.

[0013] Optionally, in a possible implementation, the positioning and pressing mechanism further includes an abutting positioning assembly, the abutting positioning assembly includes an abutting driving mechanism and an abutting block, the abutting driving mechanism is arranged on the mounting plate and drives the abutting block to move along the length direction of the battery cell, so as to abut against or move away from the front surface of the end positioning block.

[0014] Optionally, in a possible implementation, the front surface of the end positioning block is formed with a positioning step, and the abutting block abuts against the positioning step under the driving of the abutting driving mechanism.

[0015] Optionally, in a possible implementation, the top cover positioning assembly includes a top cover positioning block and a second positioning driving mechanism, the second positioning driving mechanism is arranged on the mounting plate and drives the top cover positioning block to move along the thickness direction of the battery cell, so as to make the top cover positioning block abut against or move away from the top cover of the battery cell.

[0016] Optionally, in a possible implementation, the bending mechanism includes a bending assembly and a bending driving mechanism, the bending driving mechanism is arranged on the mounting plate and drives the bending assembly to bend the tabs and the top cover pins.

[0017] Optionally, in a possible implementation, the battery cell pre-bending tab device further includes a flattening mechanism, the flattening mechanism includes a flattening driving mechanism and a flattening block, the flattening driving mechanism is arranged on the mounting plate and drives the flattening block to move along the length direction of the battery cell, so as to abut against or move away from the bent tabs and the top cover pins.

[0018] Optionally, in a possible implementation, the cell pre-folding tab device further comprises a base and a moving driving mechanism, the mounting plate is slidably arranged on the base and is driven by the moving driving mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 is a perspective view of the cell pre-folding tab device in the first view angle in the embodiment;

[0021] Figure 2 is a perspective view of the cell pre-folding tab device in the second view angle in the embodiment;

[0022] Figure 3 shows a structural schematic view of the cell in the embodiment;

[0023] Figure 4 is a perspective view of the cell pre-folding tab device in the first view angle in the embodiment; Figure 1 is an enlarged view of the portion IV in the embodiment;

[0024] Figure 5 is a perspective view of the cell pre-folding tab device in the first view angle in the embodiment; Figure 1 is an enlarged view of the portion V in the embodiment;

[0025] Figure 6 is a perspective view of the cell pre-folding tab device in the first view angle in the embodiment; Figure 1 is an enlarged view of the portion VI in the embodiment.

[0026] Figure legend: 10-cell pre-folding tab device; 11-mounting plate; 11a-enclosing connecting plate; 12-positioning and pressing mechanism;

[0027] 13-bending mechanism; 13a-upper tab bending assembly; 13b-lower tab bending assembly; 131-first bending cylinder; 132-first rolling bend; 132a-first support; 132b-first roller body; 133-second bending cylinder; 134-second rolling bend; 134a-second support; 134b-second roller body;

[0028] 14-base; 140-slideway; 15-moving driving mechanism;

[0029] 16-flattening mechanism; 160-flattening driving mechanism; 161-flattening block;

[0030] 20-pressing assembly; 21-downward pressing driving mechanism; 22-downward pressing part;

[0031] 30 - End positioning assembly; 31 - End positioning block; 32 - First positioning drive mechanism; 33 - Intermediate plate; 310 - Elongated hole; 330 - Slide groove; 331 - Screw hole; 90 - Positioning step;

[0032] 40 - Top cover positioning assembly; 41 - Top cover positioning block; 42 - Second positioning drive mechanism; 410 - Positioning groove;

[0033] 50 - Abutment positioning component; 51 - Abutment drive mechanism; 52 - Abutment block. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application 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. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of the embodiments of this application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly placed when the product of this application is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component 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.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0039] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0040] The embodiment provides a device 10 for pre-bending the tab and the top cover pin of an electric core, which can accurately bend the tab and the top cover pin of the electric core and protect the electric core body.

[0041] Please refer to Figure 1 and Figure 2 , Figure 1 Fig. 1 shows the perspective structure of the device 10 for pre-bending the tab of the electric core in the embodiment in the first visual angle. Figure 2 Fig. 2 shows the perspective structure of the device 10 for pre-bending the tab of the electric core in the embodiment in the second visual angle.

[0042] The device 10 for pre-bending the tab of the electric core comprises a mounting plate 11, a positioning and pressing mechanism 12 and a bending mechanism 13.

[0043] The positioning and pressing mechanism 12 is arranged on the mounting plate 11 and is used for abutting and positioning the electric core body. The bending mechanism 13 is arranged on the mounting plate 11 and is used for bending the tab and the top cover pin.

[0044] The device 10 for pre-bending the tab of the electric core can accurately bend the tab and the top cover pin. The device 10 for pre-bending the tab of the electric core comprises the mounting plate 11, the positioning and pressing mechanism 12 and the bending mechanism 13. The positioning and pressing mechanism 12 and the bending mechanism 13 are arranged on the mounting plate 11. When the jig loaded with the electric core is in place, the positioning and pressing mechanism 12 abuts and positions the electric core body, and the bending mechanism 13 bends the tab and the top cover pin of the electric core. Since the electric core body is positioned before or during the bending operation, the action of the bending mechanism 13 will not affect the electric core body, avoiding the offset of the electric core body and the influence of the bending precision of the tab and the top cover pin, thereby ensuring the bending precision of the tab and the top cover pin.

[0045] Optionally, in a possible implementation, the positioning and pressing mechanism 12 comprises a pressing assembly 20, an end positioning assembly 30 and a top cover positioning assembly 40 arranged on the mounting plate 11 respectively.

[0046] The pressing assembly 20 is used for abutting the surface of the electric core, the end positioning assembly 30 is used for abutting the end of the electric core, and the top cover positioning assembly 40 is used for abutting the top cover of the electric core.

[0047] For clear explanation, please refer to Figure 3 , Figure 3 Fig. 3 shows the schematic diagram of the electric core in the embodiment.

[0048] When bending the tab and the top cover pin, the pressing assembly 20, the end positioning assembly 30 and the top cover positioning assembly 40 can abut the electric core, the end of the electric core and the top cover of the electric core, so as to avoid that the bending load of the bending mechanism 13 damages the electric core body when bending the electric core and ensure the bending precision of the electric core.

[0049] wherein, Figure 3 The positions where the pressing assembly 20, the end positioning assembly 30 and the top cover positioning assembly 40 act on the battery cell are shown, and the specific positions will be described below.

[0050] It should be noted that in one possible implementation of the action flow:

[0051] The jig carrying the battery cell is in place (i.e., reaches the battery cell pre-tab folding device 10), the pressing assembly 20 works, abuts against the surface of the battery cell, and together with the jig clamps the body of the battery cell;

[0052] The end positioning assembly 30 works, abutting against the end of the battery cell, i.e., abutting against the space between the upper and lower tabs of the battery cell;

[0053] The top cover positioning assembly 40 works, abutting against the top cover of the battery cell;

[0054] The bending mechanism 13 works, bending the tabs and the top cover pins of the battery cell.

[0055] Wherein, when the tabs and the top cover pins are bent, the pressing assembly 20 can ensure that the battery cell is in a stable state, the end positioning assembly 30 can ensure that the end of the battery cell is not damaged by the bending load, and the top cover positioning assembly 40 works to ensure that the top cover is not loose, avoiding the production of defective products.

[0056] Optionally, in one possible implementation, please refer to Figure 1 The pressing assembly 20 includes a pressing driving mechanism 21 and a pressing part 22, the pressing driving mechanism 21 is arranged on the mounting plate 11 and drives the pressing part 22 to move along the thickness direction of the battery cell, so as to make the pressing part 22 abut against or move away from the upper surface of the battery cell.

[0057] It should be noted that the lower surface A of the battery cell is shown in Figure 3 The pressing part 22 acts on the opposite side of A shown in Figure 3 . Figure 3 The thickness direction of the battery cell is shown.

[0058] It should be noted that since the lower surface of the battery cell is supported by the jig, in this embodiment, the upper surface of the battery cell is abutted to make the battery cell be stably positioned and supported.

[0059] In this embodiment, the pressing driving mechanism 21 is a pneumatic cylinder, and in other specific embodiments, the driving mechanism of the pressing assembly 20 can also be other devices capable of outputting linear motion, such as a linear module instead of the pressing driving mechanism 21.

[0060] In one possible implementation, the end positioning assembly 30 includes an end positioning block 31 and a first positioning driving mechanism 32, which is arranged on the mounting plate 11 and drives the end positioning block 31 to move along the width direction of the battery cell, so that the back surface of the end positioning block 31 abuts against or is away from the end of the battery cell.

[0061] It should be noted that the end of the battery cell refers to the end located on the tab side of the pre-bent battery cell, and the back surface of the end positioning block 31 is attached to and abuts against the end of the battery cell.

[0062] It should be noted that, in Figure 3 , the end positioning block 31 is shown to abut against the end B of the battery cell, and the width direction of the battery cell is shown.

[0063] Meanwhile, it should be noted that, in Figure 1 , the end positioning assembly 30 further includes an intermediate plate 33, which connects the driving end of the first positioning driving mechanism 32 and the end positioning block 31, wherein the end positioning block 31 is arranged on the intermediate plate 33 in a position-adjustable manner, so that the stroke of the end positioning block 31 is adjusted by adjusting the position of the end positioning block 31 to meet different types of battery cells.

[0064] It should be noted that the intermediate plate 33 is provided with a sliding groove 330, the groove bottom of the sliding groove 330 is provided with a plurality of screw holes 331, the end positioning block 31 is slidably arranged in the sliding groove 330, and the end positioning block 31 is formed with a long hole 310, which is matched with the screw holes 331 by a bolt, and the end positioning block 31 is slidably matched with the sliding groove 330, so that the position-adjustable relationship between the end positioning block 31 and the intermediate plate 33 is realized.

[0065] It should be noted that the first positioning driving mechanism 32 is a pneumatic cylinder, and in other specific implementations, the first positioning driving mechanism 32 can be other driving devices capable of outputting linear motion.

[0066] Please refer to Figure 1 and Figure 2 , the positioning and pressing mechanism 12 further includes an abutting positioning assembly 50, which includes an abutting driving mechanism 51 and an abutting block 52 (see Figure 4 ), the abutting driving mechanism 51 is arranged on the mounting plate 11 and drives the abutting block 52 to move along the length direction of the battery cell, so as to abut against or be away from the front surface of the end positioning block 31.

[0067] It should be noted that Figure 3 shows the length direction of the battery cell.

[0068] When the end positioning assembly 30 works, abuts to the end of the battery cell, the abutting positioning assembly 50 works, drives the abutting block 52 to the front of the end positioning block 31 through the abutting driving mechanism 51, so that the end positioning block 31 abuts to the end of the battery cell, and ensures the accuracy of the bending of the upper and lower tabs.

[0069] It should be noted that in the embodiment, the abutting driving mechanism 51 is a pneumatic cylinder, and in other specific embodiments, the abutting driving mechanism 51 can be other devices capable of outputting linear motion.

[0070] Optionally, in one possible implementation, referring to Figure 4 , Figure 4 is Figure 1 an enlarged view of the V in FIG. 4.

[0071] The front of the end positioning block 31 is formed with a positioning step 90, and the abutting block 52 abuts to the positioning step 90 under the driving of the abutting driving mechanism 51. Wherein, by setting the positioning step 90, the abutting block 52 can accurately abut to the end positioning block 31, and the abutting effect is good.

[0072] Optionally, in one possible implementation, in combination with Figure 1 and Figure 2 , the top cover positioning assembly 40 includes a top cover positioning block 41 and a second positioning driving mechanism 42, the second positioning driving mechanism 42 is arranged on the mounting plate 11, and drives the top cover positioning block 41 to move along the thickness direction of the battery cell, for making the top cover positioning block 41 abut or away from the top cover of the battery cell.

[0073] The number of the top cover positioning block 41 is two, and the second positioning driving mechanism 42 is a bidirectional pneumatic cylinder, which drives the two top cover positioning blocks 41 to move reversely, so as to clamp or release the top cover tab of the battery cell.

[0074] It should be noted that Figure 3 shows the top cover tab C abutted by the top cover positioning block 41.

[0075] Referring to Figure 5 , Figure 5 is Figure 1 an enlarged view of the V in FIG. 4.

[0076] The mutually close wall surfaces of the two top cover positioning blocks 41 are formed with positioning grooves 410 for abutting to the top cover tab.

[0077] It should be noted that in the embodiment, the two top cover positioning blocks 41 are driven by one bidirectional pneumatic cylinder, and in other specific embodiments, the two top cover positioning blocks 41 can be driven by one driving device respectively, for example, the two top cover positioning blocks 41 are driven by one pneumatic cylinder respectively, which can also achieve the effect of clamping or releasing the top cover tab.

[0078] Optionally, in one possible implementation, the bending mechanism 13 comprises a bending assembly and a bending driving mechanism, the bending driving mechanism is arranged on the mounting plate 11 and drives the bending assembly to bend the tab and the top cover pin.

[0079] The bending assembly comprises an upper tab bending assembly 13a and a lower tab bending assembly 13b, and the bending driving mechanism comprises a first bending cylinder 131 and a second bending cylinder 133.

[0080] The upper tab bending assembly 13a comprises a first rolling bend 132, and the lower tab bending assembly 13b comprises a second rolling bend 134.

[0081] The first bending cylinder 131 is arranged on the mounting plate 11 and drives the first rolling bend 132 to bend the upper tab of the battery cell and the upper pin of the top cover, and the second bending cylinder 133 is arranged on the mounting plate 11 and drives the second rolling bend 134 to bend the lower tab of the battery cell and the lower pin of the top cover.

[0082] In Figure 3 , the upper tab and the top cover pin D and the upper tab and the top cover pin F are shown.

[0083] The first bending cylinder 131 drives the first rolling bend 132 to move along the thickness direction of the battery cell, and the first rolling bend 132 is located above the upper tab when not driven, and by moving downward, the upper tab (the upper end tab) of the battery cell is rolled and bent. The second bending cylinder 133 drives the second rolling bend 134 to move along the thickness direction of the battery cell, and the second rolling bend 134 is located below the upper tab when not driven, and by moving upward, the lower tab (the lower end tab) of the battery cell is rolled and bent.

[0084] In order to save space, the mounting plate 11 is provided with an enclosing connecting plate 11a which encloses the cylinder body of the first bending cylinder 131, and the cylinder body of the downward driving mechanism 21 is fixed to the enclosing connecting plate 11a.

[0085] In order to save space, the mounting plate 11 is provided with an enclosing connecting plate 11a which encloses the cylinder body of the first bending cylinder 131, and the cylinder body of the downward driving mechanism 21 is fixed to the enclosing connecting plate 11a. Figure 6 , Figure 6 is Figure 1 an enlarged view of VI in

[0086] The first roll-folding 132 comprises a first support 132a and a first roller body 132b. The first support 132a is arranged at the execution end of the first folding cylinder 131, and the first roller body 132b is rotatably arranged at the first support 132a. The first roller body 132b is used to roll and fold the upper tab and the top cover pin. The second roll-folding 134 comprises a second support 134a and a second roller body 134b. The second support 134a is arranged at the execution end of the second folding cylinder 133, and the second roller body 134b is rotatably arranged at the second support 134a. The second roller body 134b is used to roll and fold the lower tab and the top cover pin.

[0087] Optionally, in a possible implementation, the cell pre-folding tab device 10 further comprises a flattening mechanism 16. The flattening mechanism 16 comprises a flattening driving mechanism 160 and a flattening block 161. The flattening driving mechanism 160 is arranged at the mounting plate 11 and drives the flattening block 161 to move along the length direction of the cell, so as to abut against or move away from the folded tabs and the top cover pin.

[0088] It should be noted that, in a possible action flow:

[0089] The jig loaded with the cell is in place (i.e., reaches the cell pre-folding tab device 10), the pressing assembly 20 works, abuts against the surface of the cell, and clamps the cell body together with the jig;

[0090] The end positioning assembly 30 works, abuts against the end of the cell;

[0091] The top cover positioning assembly 40 works, abuts against the top cover of the cell;

[0092] The abutting positioning assembly 50 works, abuts against the end positioning block 31;

[0093] The folding mechanism 13 works, respectively folds the upper and lower tabs of the cell and the corresponding top cover pins;

[0094] The flattening mechanism 16 works, flattens the folded tabs and the top cover pins, thereby ensuring the consistency of the cell product.

[0095] It should be noted that, please refer to Figure 1 and Figure 2 , the cell pre-folding tab device 10 further comprises a base 14 and a moving driving mechanism 15. The mounting plate 11 is slidably arranged at the base 14 and is driven by the moving driving mechanism 15.

[0096] It should be noted that, in the embodiment, the moving driving mechanism 15 is a cylinder. In other specific embodiments, the moving driving mechanism 15 can be other driving devices capable of outputting linear motion, such as a linear module.

[0097] The base 14 is provided with two strip parallel slide rails 140, and the lower end of the mounting plate 11 is provided with a sliding block matched with the slide rails 140, so that the mounting plate 11 is driven by the movement driving mechanism 15 to slide on the base 14, when the jig loaded with the battery cell is in place, the mounting plate 11 is driven by the movement driving mechanism 15 to approach the battery cell, and the positioning and pressing mechanism 12 and the bending mechanism 13 can start to work.

[0098] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made by those skilled in the art based on the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A battery cell pre-folding tab device, characterized in that, include: Mounting plate; A positioning and clamping mechanism is disposed on the mounting plate. The positioning and clamping mechanism is used to abut and position the battery cell body. The positioning and clamping mechanism includes a clamping component, an end positioning component, and a top cover positioning component disposed on the mounting plate. The clamping component abuts against the surface of the battery cell in the thickness direction and away from the fixture surface. The end positioning component abuts against the end of the battery cell, i.e., between the upper and lower tabs of the battery cell. The top cover positioning component abuts against the top cover of the battery cell. The tabs of the battery cell extend from the end in the length direction of the battery cell, and the top cover of the battery cell is disposed at one end in the width direction of the battery cell. A bending mechanism for bending the tabs and top cover pins, the bending mechanism being disposed on the mounting plate, the bending mechanism including an upper tab bending assembly and a lower tab bending assembly, the upper tab bending assembly being used to bend the upper tab and the upper pin, the lower tab bending assembly being used to bend the lower tab and the lower pin, the upper tab and the lower tab being arranged opposite to each other along the thickness direction of the cell; The pre-folding tab device for the battery cell also includes a base and a moving drive mechanism. The mounting plate is slidably disposed on the base and driven by the moving drive mechanism. When the fixture carrying the battery cell is in place, the mounting plate is driven by the moving drive mechanism to approach the battery cell, and the positioning and pressing mechanism and the bending mechanism can start working.

2. The cell pre-folding tab device according to claim 1, characterized in that, The pressing assembly includes a pressing drive mechanism and a pressing part. The pressing drive mechanism is disposed on the mounting plate and drives the pressing part to move along the thickness direction of the battery cell, so that the pressing part abuts against or moves away from the upper surface of the battery cell.

3. The cell pre-folding tab device according to claim 1, characterized in that, The end positioning component includes an end positioning block and a first positioning drive mechanism. The first positioning drive mechanism is disposed on the mounting plate and drives the end positioning block to move along the width direction of the battery cell, so that the back of the end positioning block abuts against or moves away from the end of the battery cell.

4. The cell pre-folding tab device according to claim 3, characterized in that, The positioning and clamping mechanism further includes an abutting positioning component, which includes an abutting driving mechanism and an abutting block. The abutting driving mechanism is located on the mounting plate and drives the abutting block to move along the length of the battery cell to abut against or move away from the front of the end positioning block.

5. The cell pre-folding tab device according to claim 4, characterized in that, The end positioning block has a positioning step on its front side, and the abutting block abuts against the positioning step under the drive of the abutting drive mechanism.

6. The cell pre-folding tab device according to claim 1, characterized in that, The top cover positioning assembly includes a top cover positioning block and a second positioning drive mechanism. The second positioning drive mechanism is disposed on the mounting plate and drives the top cover positioning block to move along the thickness direction of the battery cell, so that the top cover positioning block abuts against or moves away from the top cover of the battery cell.

7. The cell pre-folding tab device according to claim 1, characterized in that, The bending mechanism includes a bending component and a bending drive mechanism. The bending drive mechanism is located on the mounting plate and drives the bending component to bend the tabs and the top cover pins.

8. The cell pre-folding tab device according to claim 1, characterized in that, The pre-folded tab device for the battery cell also includes a leveling mechanism, which includes a leveling drive mechanism and a leveling block. The leveling drive mechanism is located on the mounting plate and drives the leveling block to move along the length of the battery cell to abut against or move away from the bent tab and the top cover pin.

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