Lithium battery tab bending device

By designing automated transportation and bending components, the manual loading and unloading problem of existing lithium battery tab bending devices has been solved, enabling rapid automated bending of batteries and improving production efficiency.

CN224222426UActive Publication Date: 2026-05-12SHENZHEN YONGDELI NEW ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN YONGDELI NEW ENERGY CO LTD
Filing Date
2025-05-14
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing manual loading and unloading method for lithium battery tab bending devices is time-consuming and labor-intensive, resulting in a slow loading and unloading rate.

Method used

The system employs automated transport and bending components, including drive motors, conveyor belts, shafts, rotating rollers, servo motors, lead screws, sliders, pneumatic cylinders, and hydraulic cylinders, to achieve automated battery transport and automatic tab bending.

Benefits of technology

提高了锂电池极耳折弯装置的上下料速率和工作效率,实现了电池的连续快速折弯操作。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lithium battery tab bending device, and relates to the field of lithium battery production equipment, the lithium battery tab bending device comprises a protective shell and a battery body, and is characterized by further comprising a transportation assembly arranged on the protective shell and used for transporting the battery body to a subsequent process; the lifting assembly is arranged on the protective shell; the fixing assembly is arranged on the lifting assembly and is used for fixing a battery body; the bending assembly is arranged on the lifting assembly and used for being matched with the conveying assembly, the bending work efficiency is improved, through arrangement of a driving motor, a conveying belt, a rotating shaft, a rotating roller and a conveying belt, power generated by the driving motor is transmitted to the rotating shaft through the conveying belt, then power on the rotating shaft is transmitted to the conveying belt through the rotating roller, conveying is made to rotate, and the bending efficiency is improved. And therefore, the automatic and rapid conveying effect is achieved, and the feeding and discharging speed of the device is increased.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery production equipment, and in particular to a lithium battery tab bending device. Background Technology

[0002] Tabs are a type of raw material used in lithium-ion polymer batteries, such as those used in mobile phones, Bluetooth batteries, laptop batteries, and new energy vehicles. Batteries have positive and negative terminals, and tabs are the metal conductors that lead the positive and negative terminals out of the battery cell. Simply put, the tabs on the positive and negative terminals of a battery are the contact points during charging and discharging. As an important part of soft-pack lithium-ion batteries, tabs need to be bent at a certain angle to match different products, thus requiring the tabs to be bent.

[0003] A Chinese patent with authorization announcement number CN222491654U discloses a lithium battery tab bending device, including a base with two sets of slide rails on the top. This lithium battery tab bending device, through the arrangement of a drive mechanism, a placement plate, and a bending mechanism, fixes the lithium battery body on the placement plate during bending. Then, a servo motor on one side is activated, driving a positive and negative lead screw on the same side to rotate. This causes two sets of support plates threaded onto the surfaces of the lead screws to move towards the central placement plate until bending blocks on the surface of the support plates move directly above the tabs on both sides of the lithium battery body on the top surface of the placement plate. Finally, a hydraulic cylinder is activated, driving the bending block on the bottom piston rod to move downwards, performing a 90-degree bend on the tabs directly below. This allows for simultaneous bending of the tabs on both sides of the lithium battery body, resulting in higher efficiency compared to traditional unidirectional bending and improved production efficiency.

[0004] The aforementioned bending device also has shortcomings. Before bending, the battery needs to be placed inside the device manually, and after bending, the battery needs to be removed manually. This manual loading and unloading method is time-consuming and labor-intensive, which slows down the loading and unloading speed of the device. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a lithium battery tab bending device, which aims to solve the problem that the manual loading and unloading method of the above-mentioned device is time-consuming and labor-intensive, resulting in a slow loading and unloading rate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lithium battery tab bending device includes a protective shell, a battery body, and further includes:

[0008] A transport component, mounted on the protective shell, is used to transport the battery body to subsequent processes.

[0009] A lifting assembly is mounted on the protective shell;

[0010] A fixing component, disposed on the lifting component, is used to fix the battery body;

[0011] A bending assembly is mounted on the lifting assembly and is used in conjunction with the transport assembly to improve the efficiency of the bending operation.

[0012] Preferably, the transport component includes:

[0013] A drive motor is mounted on the protective housing and is fixedly connected to the protective housing;

[0014] A conveyor belt is mounted on the output shaft of the drive motor, and the conveyor belt is tumbledly connected to the output shaft of the drive motor;

[0015] A rotating shaft is disposed on the protective shell, the rotating shaft is rotatably connected to the protective shell, and the rotating shaft is tactilely connected to the conveyor belt;

[0016] A rotating roller is mounted on the rotating shaft, and the rotating roller is fixedly connected to the rotating shaft;

[0017] A conveyor belt is mounted on the rotating roller, and the conveyor belt is tumblingly connected to the rotating roller.

[0018] Preferably, the lifting assembly includes:

[0019] A servo motor is mounted on the protective housing and is fixedly connected to the protective housing;

[0020] A lead screw is mounted on the protective housing, the lead screw is rotatably connected to the protective housing, and the lead screw is fixedly connected to the output shaft of the servo motor;

[0021] A sliding groove is provided on the protective shell, and the sliding groove is fixedly connected to the protective shell;

[0022] A slider is disposed on the slide groove, the slider is slidably connected to the slide groove, and the slider is threadedly connected to the lead screw.

[0023] Preferably, the fixing component includes:

[0024] A connecting block is disposed on the slider, and the connecting block is fixedly connected to the slider.

[0025] A fixing plate is disposed on the connecting block, and the fixing plate is fixedly connected to the connecting block;

[0026] An electric telescopic rod is mounted on the fixed plate, and the electric telescopic rod is fixedly connected to the fixed plate;

[0027] A clamp is placed on the electric telescopic rod, and the clamp is fixedly connected to the electric telescopic rod;

[0028] A load-bearing plate is disposed on the protective shell, and the load-bearing plate is fixedly connected to the protective shell;

[0029] A limiting plate is disposed on the load-bearing plate, and the limiting plate is fixedly connected to the load-bearing plate.

[0030] Preferably, the bending assembly includes:

[0031] A mounting slot is provided on the slider, and the mounting slot is fixedly connected to the slider;

[0032] A pneumatic cylinder is mounted on the mounting groove and is fixedly connected to the mounting groove;

[0033] A pneumatic rod is mounted on the pneumatic cylinder, and the pneumatic rod is slidably connected to the pneumatic cylinder;

[0034] A mounting block is disposed on the pneumatic rod, and the mounting block is fixedly connected to the pneumatic rod;

[0035] A hydraulic cylinder is mounted on the mounting block and is fixedly connected to the mounting block;

[0036] A hydraulic rod is mounted on the hydraulic cylinder, and the hydraulic rod is slidably connected to the hydraulic cylinder;

[0037] A bending block is disposed on the hydraulic rod, and the bending block is fixedly connected to the hydraulic rod.

[0038] Preferably, there are two servo motors and two lead screws, which are symmetrically distributed on the housing.

[0039] Preferably, there are two electric telescopic rods, which are symmetrically distributed on the fixed plate.

[0040] Preferably, there are two mounting slots, which are symmetrically distributed on the slider.

[0041] Preferably, there are two hydraulic cylinders, which are evenly distributed on the mounting block.

[0042] Preferably, the load-bearing plate is used to bear the pressure generated by the battery body on the conveyor belt during the bending process, thereby avoiding the problem of conveyor belt damage.

[0043] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0044] 1. By setting up a drive motor, conveyor belt, rotating shaft, rotating roller, and transport belt, the power generated by the drive motor is first transmitted to the rotating shaft through the conveyor belt, and then the power on the rotating shaft is transmitted to the transport belt through the rotating roller, so that the transport rotates, thereby achieving an automatic and fast transport effect and improving the loading and unloading speed of the device.

[0045] 2. By cooperating with the transport component and the bending component, the transport component automatically and quickly transports the battery body on the transport belt to the bending component for bending, and then transports the bent battery body to the next process. This allows the bending device to continuously and quickly bend the tabs of the battery body, thereby improving the working efficiency of the device. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 A three-dimensional structural schematic diagram of a lithium battery tab bending device is shown.

[0048] Figure 2 A top view of a lithium battery tab bending device is shown.

[0049] Figure 3 It shows Figure 2 Sectional view at point AA.

[0050] Figure 4 It shows Figure 2 Sectional view at point BB.

[0051] Figure 5 A front view of a lithium battery tab bending device is shown.

[0052] Figure 6 It shows Figure 5 Sectional view at point CC.

[0053] Legend:

[0054] 1. Protective shell; 2. Battery body; 3. Drive motor; 4. Conveyor belt; 5. Rotating shaft; 6. Rotating roller; 7. Conveyor belt; 8. Servo motor; 9. Lead screw; 10. Slide groove; 11. Slider; 12. Connecting block; 13. Fixing plate; 14. Electric telescopic rod; 15. Clamping plate; 16. Load-bearing plate; 17. Limiting plate; 18. Mounting groove; 19. Pneumatic cylinder; 20. Pneumatic rod; 21. Mounting block; 22. Hydraulic cylinder; 23. Hydraulic rod; 24. Bending block. Detailed Implementation

[0055] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0056] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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 utility model.

[0057] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] Reference Figures 1 to 6 The present invention provides a further description of an embodiment of a lithium battery tab bending device.

[0060] A lithium battery tab bending device includes a protective shell 1, a battery body 2, and further includes:

[0061] A transport assembly, disposed on the protective shell 1, is used to transport the battery body 2 to subsequent processes. The transport assembly includes:

[0062] A drive motor 3 is mounted on the protective shell 1, and the drive motor 3 is fixedly connected to the protective shell 1;

[0063] Conveyor belt 4 is mounted on the output shaft of drive motor 3, and the conveyor belt 4 is tumbledly connected to the output shaft of drive motor 3;

[0064] A rotating shaft 5 is disposed on the protective shell 1, the rotating shaft 5 is rotatably connected to the protective shell 1, and the rotating shaft 5 is tumbledly connected to the conveyor belt 4;

[0065] A rotating roller 6 is mounted on the rotating shaft 5, and the rotating roller 6 is fixedly connected to the rotating shaft 5;

[0066] The conveyor belt 7 is disposed on the rotating roller 6, and the conveyor belt 7 is tumblingly connected to the rotating roller 6.

[0067] Start the drive motor 3. The output shaft of the drive motor 3 rotates, which drives the conveyor belt 4, which is tumbledly connected to the output shaft of the drive motor 3, to rotate. This, in turn, drives the rotating shaft 5, which is tumbledly connected to the conveyor belt 4, to rotate. The rotation of the rotating shaft 5 drives the rotating roller 6, which is fixedly connected to the rotating shaft 5, to rotate. This, in turn, drives the conveyor belt 7, which is tumbledly connected to the rotating roller 6, to rotate, thus achieving an automatic transport effect.

[0068] By configuring the drive motor 3, the conveyor belt 4, the rotating shaft 5, the rotating roller 6, and the transport belt 7, the power generated by the drive motor 3 is first transmitted to the rotating shaft 5 via the conveyor belt 4, and then the power on the rotating shaft 5 is transmitted to the transport belt 7 via the rotating roller 6, so that the transport rotates, thereby achieving an automatic and fast transport effect and improving the loading and unloading speed of the device.

[0069] Reference Figures 1 to 6 A lifting assembly is disposed on the protective shell 1, and the lifting assembly includes:

[0070] A servo motor 8 is mounted on the protective shell 1 and is fixedly connected to the protective shell 1. There are two servo motors 8, which are symmetrically distributed on the shell.

[0071] A lead screw 9 is mounted on the protective shell 1 and is rotatably connected to the protective shell 1. The lead screw 9 is fixedly connected to the output shaft of the servo motor 8. There are two lead screws 9, which are symmetrically distributed on the shell.

[0072] A sliding groove 10 is provided on the protective shell 1, and the sliding groove 10 is fixedly connected to the protective shell 1;

[0073] The slider 11 is disposed on the slide groove 10, the slider 11 is slidably connected to the slide groove 10, and the slider 11 is threadedly connected to the lead screw 9.

[0074] When the servo motor 8 is started, the output shaft of the servo motor 8 rotates, which drives the lead screw 9, which is fixedly connected to the output shaft of the servo motor 8, to rotate. This causes the slider 11, which is threadedly connected to the lead screw 9, to rotate downward. Since the slider 11 is restricted by the sliding groove 10, it can only slide downward along the groove 10 at this time, which facilitates subsequent work.

[0075] A fixing component, disposed on the lifting component, is used to fix the battery body 2. The fixing component includes:

[0076] A connecting block 12 is disposed on the slider 11, and the connecting block 12 is fixedly connected to the slider 11;

[0077] A fixing plate 13 is disposed on the connecting block 12, and the fixing plate 13 is fixedly connected to the connecting block 12;

[0078] An electric telescopic rod 14 is mounted on the fixed plate 13 and is fixedly connected to the fixed plate 13. There are two electric telescopic rods 14, which are symmetrically distributed on the fixed plate 13.

[0079] A clamping plate 15 is placed on the electric telescopic rod 14, and the clamping plate 15 is fixedly connected to the electric telescopic rod 14;

[0080] A load-bearing plate 16 is disposed on the protective shell 1 and is fixedly connected to the protective shell 1. The load-bearing plate 16 is used to bear the pressure generated by the battery body 2 on the conveyor belt 4 during the bending operation, thereby preventing damage to the conveyor belt 4.

[0081] A limiting plate 17 is disposed on the load-bearing plate 16, and the limiting plate 17 is fixedly connected to the load-bearing plate 16.

[0082] The connecting block 12 moves downward, thereby driving the fixing plate 13, which is fixedly connected to the connecting block 12, to move downward until the fixing plate 13 is in close contact with the surface of the battery body 2. The electric telescopic rod 14 is activated, and the electric telescopic rod 14 retracts and drives the clamping plate 15, which is fixedly connected to the electric telescopic rod 14, to move towards the battery body 2 until the clamping plate 15 clamps the battery body 2. The electric telescopic rod 14 is then closed, thereby achieving the effect of fixing the battery body 2.

[0083] Reference Figures 1 to 6 A bending assembly, disposed on the lifting assembly, is used to cooperate with the transport assembly to improve the efficiency of the bending operation. The bending assembly includes:

[0084] Mounting slot 18 is provided on the slider 11. The mounting slot 18 is fixedly connected to the slider 11. There are two mounting slots 18, which are symmetrically distributed on the slider 11.

[0085] A pneumatic cylinder 19 is disposed on the mounting groove 18, and the pneumatic cylinder 19 is fixedly connected to the mounting groove 18;

[0086] A pneumatic rod 20 is mounted on the pneumatic cylinder 19, and the pneumatic rod 20 is slidably connected to the pneumatic cylinder 19;

[0087] Mounting block 21 is disposed on the pneumatic rod 20, and the mounting block 21 is fixedly connected to the pneumatic rod 20;

[0088] A hydraulic cylinder 22 is mounted on the mounting block 21 and is fixedly connected to the mounting block 21. There are two hydraulic cylinders 22, which are evenly distributed on the mounting block 21.

[0089] A hydraulic rod 23 is mounted on the hydraulic cylinder 22, and the hydraulic rod 23 is slidably connected to the hydraulic cylinder 22;

[0090] A bending block 24 is disposed on the hydraulic rod 23, and the bending block 24 is fixedly connected to the hydraulic rod 23.

[0091] When the pneumatic cylinder 19 is activated, the gas in the pneumatic cylinder 19 pushes the pneumatic rod 20, which is slidably connected to the pneumatic cylinder 19, to move away from the pneumatic cylinder 19. This causes the mounting block 21, which is fixedly connected to the pneumatic rod 20, to move until the mounting block 21 moves directly above the electrode tab of the battery body 2. Then, the pneumatic cylinder 19 is closed, and the hydraulic cylinder 22 is activated. The liquid in the hydraulic cylinder 22 pushes the hydraulic rod 23, which is slidably connected to the hydraulic cylinder 22, to move away from the hydraulic cylinder 22. This causes the bending block 24, which is fixedly connected to the hydraulic rod 23, to move downward, thereby achieving the effect of bending the electrode tab at a 90-degree angle directly below.

[0092] Through the cooperation of the transport component and the bending component, the transport component automatically and quickly transports the battery body 2 on the transport belt 7 to the bending component for bending, and then transports the bent battery body 2 to the next process. This allows the bending device to continuously and quickly bend the tabs of the battery body 2, thereby greatly saving the time for loading and unloading and improving the working efficiency of the device.

[0093] Working principle: Refer to Figures 1 to 6 Start the drive motor 3. The output shaft of the drive motor 3 rotates, which drives the conveyor belt 4 that is tumbled to the output shaft of the drive motor 3 to rotate. This drives the rotating shaft 5 that is tumbled to the conveyor belt 4 to rotate. The rotating shaft 5 rotates, which drives the rotating roller 6 that is fixedly connected to the rotating shaft 5 to rotate. This drives the transport belt 7 that is tumbled to the rotating roller 6 to rotate. Place the battery body 2 on the moving transport belt 7 until the transport belt 7 transports the battery body 2 directly below the bending assembly. Then turn off the drive motor 3.

[0094] When the battery body 2 needs to be fixed, the servo motor 8 is started. The output shaft of the servo motor 8 rotates, which drives the lead screw 9 fixedly connected to the output shaft of the servo motor 8 to rotate. This drives the slider 11 threadedly connected to the lead screw 9 to rotate downward. Since the slider 11 is restricted by the sliding groove 10, it can only slide downward along the groove 10. The downward sliding of the slider 11 drives the connecting block 12 fixedly connected to the slider 11 to move downward. This drives the fixing plate 13 fixedly connected to the connecting block 12 to move downward until the fixing plate 13 is in close contact with the surface of the battery body 2. The electric telescopic rod 14 is started. The electric telescopic rod 14 retracts and drives the clamping plate 15 fixedly connected to the electric telescopic rod 14 to move towards the battery body 2 until the clamping plate 15 clamps the battery body 2. The electric telescopic rod 14 is then closed.

[0095] During the bending operation, the pneumatic cylinder 19 is activated. The gas in the pneumatic cylinder 19 pushes the pneumatic rod 20, which is slidably connected to the pneumatic cylinder 19, to move away from the pneumatic cylinder 19. This causes the mounting block 21, which is fixedly connected to the pneumatic rod 20, to move until the mounting block 21 moves directly above the electrode tab of the battery body 2. The pneumatic cylinder 19 is then closed, and the hydraulic cylinder 22 is activated. The liquid in the hydraulic cylinder 22 pushes the hydraulic rod 23, which is slidably connected to the hydraulic cylinder 22, to move away from the hydraulic cylinder 22. This causes the bending block 24, which is fixedly connected to the hydraulic rod 23, to move downward, thereby achieving the effect of bending the electrode tab at a 90-degree angle directly below.

[0096] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lithium battery tab bending device, comprising a protective shell (1) and a battery body (2), characterized in that, Also includes: A transport component, disposed on the protective shell (1), is used to transport the battery body (2) to subsequent processes; The transport component includes: A drive motor (3) is mounted on the protective shell (1), and the drive motor (3) is fixedly connected to the protective shell (1); A conveyor belt (4) is mounted on the output shaft of the drive motor (3), and the conveyor belt (4) is tumbledly connected to the output shaft of the drive motor (3); A rotating shaft (5) is disposed on the protective shell (1), the rotating shaft (5) is rotatably connected to the protective shell (1), and the rotating shaft (5) is tumbledly connected to the conveyor belt (4); A rotating roller (6) is disposed on the rotating shaft (5), and the rotating roller (6) is fixedly connected to the rotating shaft (5); A conveyor belt (7) is disposed on the rotating roller (6), and the conveyor belt (7) is tumbledly connected to the rotating roller (6); A lifting assembly is mounted on the protective shell (1); A fixing component is disposed on the lifting component and is used to fix the battery body (2); A bending assembly is mounted on the lifting assembly and is used in conjunction with the transport assembly to improve the efficiency of the bending operation.

2. The lithium battery tab bending device according to claim 1, characterized in that, The lifting assembly includes: A servo motor (8) is mounted on the protective shell (1), and the servo motor (8) is fixedly connected to the protective shell (1); A lead screw (9) is mounted on the protective shell (1), the lead screw (9) is rotatably connected to the protective shell (1), and the lead screw (9) is fixedly connected to the output shaft of the servo motor (8); A sliding groove (10) is provided on the protective shell (1), and the sliding groove (10) is fixedly connected to the protective shell (1); A slider (11) is disposed on the slide groove (10), the slider (11) is slidably connected to the slide groove (10), and the slider (11) is threadedly connected to the lead screw (9).

3. The lithium battery tab bending device according to claim 2, characterized in that, The fixing component includes: A connecting block (12) is disposed on the slider (11), and the connecting block (12) is fixedly connected to the slider (11); A fixing plate (13) is disposed on the connecting block (12), and the fixing plate (13) is fixedly connected to the connecting block (12); An electric telescopic rod (14) is mounted on the fixed plate (13), and the electric telescopic rod (14) is fixedly connected to the fixed plate (13); A clamp (15) is placed on the electric telescopic rod (14), and the clamp (15) is fixedly connected to the electric telescopic rod (14); A load-bearing plate (16) is disposed on the protective shell (1), and the load-bearing plate (16) is fixedly connected to the protective shell (1); A limiting plate (17) is disposed on the load-bearing plate (16), and the limiting plate (17) is fixedly connected to the load-bearing plate (16).

4. A lithium battery tab bending device according to claim 3, characterized in that, The bending assembly includes: A mounting slot (18) is provided on the slider (11), and the mounting slot (18) is fixedly connected to the slider (11); A pneumatic cylinder (19) is disposed on the mounting groove (18), and the pneumatic cylinder (19) is fixedly connected to the mounting groove (18); A pneumatic rod (20) is mounted on the pneumatic cylinder (19), and the pneumatic rod (20) is slidably connected to the pneumatic cylinder (19); Mounting block (21) is disposed on the pneumatic rod (20), and the mounting block (21) is fixedly connected to the pneumatic rod (20); A hydraulic cylinder (22) is mounted on the mounting block (21), and the hydraulic cylinder (22) is fixedly connected to the mounting block (21); A hydraulic rod (23) is mounted on the hydraulic cylinder (22), and the hydraulic rod (23) is slidably connected to the hydraulic cylinder (22); A bending block (24) is disposed on the hydraulic rod (23), and the bending block (24) is fixedly connected to the hydraulic rod (23).

5. A lithium battery tab bending device according to claim 4, characterized in that, There are two servo motors (8) and two lead screws (9), which are distributed symmetrically on the outer shell.

6. A lithium battery tab bending device according to claim 5, characterized in that, There are two electric telescopic rods (14), which are symmetrically distributed on the fixed plate (13).

7. A lithium battery tab bending device according to claim 6, characterized in that, There are two mounting slots (18), which are symmetrically distributed on the slider (11).

8. A lithium battery tab bending device according to claim 7, characterized in that, There are two hydraulic cylinders (22), which are evenly distributed on the mounting block (21).

9. A lithium battery tab bending device according to claim 8, characterized in that, The load-bearing plate (16) is used to bear the pressure generated by the battery body (2) on the conveyor belt (4) during the bending operation, thereby preventing damage to the conveyor belt (4).