Battery cathode and anode pre-welding servo mechanism

By using the lifting and driving components of the battery anode and cathode pre-welding servo mechanism, automated welding of battery packs is achieved, solving the problems of low efficiency and large errors in traditional equipment, and improving welding accuracy and efficiency.

CN224238598UActive Publication Date: 2026-05-15NANJING BINZHAN ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING BINZHAN ELECTROMECHANICAL EQUIP CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional battery electrode pre-welding equipment requires manual movement of the battery pack, resulting in low welding efficiency and a high risk of errors, especially when dealing with battery packs of varying thicknesses.

Method used

A battery anode and cathode pre-welding servo mechanism is adopted, which uses lifting and driving components to realize the automated movement and welding of battery packs. The precise displacement and welding of battery packs are achieved through components such as servo motors and hydraulic cylinders, reducing manual intervention.

Benefits of technology

It improves welding efficiency, reduces errors introduced by manual operation, ensures consistency in the distance moved each time, and adapts to the welding needs of battery packs of different thicknesses.

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Abstract

The utility model discloses a battery cathode and anode pre-welding servo mechanism which comprises a support body, a supporting assembly arranged on the support body, a lifting assembly arranged on the support body, a fixing assembly arranged on the support body and a driving assembly arranged on the support body. The driving assembly is used for driving the battery pack to synchronously move left and right in the horizontal direction. According to the utility model, when the driving assembly drives the welding head to continuously move up and down to weld the battery pack, the driving assembly also drives the supporting assembly on which the battery pack is placed to move left and right in the horizontal direction, and the working state is that every time the welding head ascends, the battery pack moves leftwards or rightwards by the width of one battery; and the driving assembly can control the moving distance of the battery pack to be consistent each time, so that the driving assembly can automatically drive the battery pack to move while driving the welding head to move up and down to weld the battery pack.
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Description

Technical Field

[0001] This utility model mainly relates to the field of battery pack processing technology, specifically a servo mechanism for pre-welding battery anode and cathode. Background Technology

[0002] During the production and processing of battery packs, electrode foils and electrode sheets need to be welded at the anode and cathode of the battery.

[0003] Since battery packs are assembled from multiple cells, welding requires welding multiple cells together. Therefore, during welding, the battery pack needs to be moved a certain distance before welding the next cell. Traditional battery electrode pre-welding equipment requires manual operation to push the battery pack. Furthermore, since the thickness of different battery packs varies, the amount of movement may differ when welding each battery pack. Manual operation of the components can easily lead to errors. Utility Model Content

[0004] This utility model provides a solution that addresses the problem of overly simplistic solutions in existing technologies. It offers a significantly different approach by providing a battery anode and cathode pre-welding servo mechanism. This mechanism solves the problem mentioned in the background section where traditional battery electrode pre-welding equipment requires manual operation to move the battery pack one cell at a time before welding the next. This not only results in low welding efficiency but also introduces errors due to the varying thicknesses of different battery cells when manually moving the equipment.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A battery anode and cathode pre-welding servo mechanism includes a bracket body, a support component for placing a battery pack on the bracket body, a lifting component for adjusting the height of the support component on the bracket body, a fixing component for mounting a welding head on the bracket body, and a driving component for driving the welding head to move up and down on the bracket body, and the driving component for driving the battery pack to move horizontally left and right synchronously.

[0007] Preferably, the lifting assembly includes a hydraulic cylinder, which is mounted on the support body. The hydraulic cylinder telescopic rod is fixedly connected to the transmission push plate, and the transmission push plate is slidably connected to the support body. An inclined plate is provided on the transmission push plate.

[0008] Preferably, the support assembly includes a lifting plate, which is slidably connected to the bracket body, and the inclined surface of the inclined plate is in contact with the lifting plate. A support plate is provided above the lifting plate, and a sliding plate is slidably connected above the support plate.

[0009] Preferably, the drive component includes a servo motor, which is mounted on the bracket body. The output end of the servo motor is provided with a first threaded rod, which is rotatably connected to the bracket body. A push block is threaded onto the first threaded rod.

[0010] Preferably, a support block is slidably connected to the bracket body, and the support block is positioned directly above the push block. The support block is provided with a fixing clamp for fixing the welding head.

[0011] Preferably, the drive assembly further includes an electric telescopic rod, which is disposed on both sides of the first threaded rod. A bevel gear set is disposed between the electric telescopic rod and the first threaded rod, and the electric telescopic rod and the bevel gear are connected by a one-way bearing. Insertion rods are respectively disposed on both sides of the bracket body, and one end of the electric telescopic rod is inserted into the insertion rod.

[0012] Preferably, the drive assembly further includes a second threaded rod, which is rotatably connected to the upper part of the support plate, and the sliding plate is threadedly sleeved on the second threaded rod. A pulley assembly is sleeved between the second threaded rod and the plug rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When the drive component drives the welding head to move up and down continuously to weld the battery pack, the drive component also drives the support component on which the battery pack is placed to move horizontally left and right. In operation, the battery pack moves to the left or right by the width of one battery cell every time the welding head rises. The drive component can control the battery pack to move a consistent distance each time. This allows the drive component to automatically move the battery pack while driving the welding head to move up and down to weld the battery pack, eliminating the need for manual driving of the component to move the battery pack. This not only improves welding efficiency but also reduces the error caused by the movement distance of the battery pack.

[0014] Meanwhile, when the first threaded rod driven by the drive component in this application raises the welding head, the battery pack will move to the left or right by the width of one battery cell. In this way, for batteries of different thicknesses, only the height of the welding head driven by the first threaded rod needs to be adjusted to achieve different displacement distances of the battery pack. Thus, only the height of the welding head needs to be adjusted according to the thickness of the first battery cell. After each battery cell in this group is welded, the welding head will rise to the same height, which will cause the battery pack to move by the thickness of one battery cell. Compared with manually driving the component to push the battery displacement, the error can be reduced.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the back of this utility model;

[0018] Figure 3 This is a top-view three-dimensional structural diagram of the present invention;

[0019] The diagram is marked as follows:

[0020] 1. Support body; 2. Hydraulic cylinder; 3. Transmission push plate; 4. Inclined plate; 5. Lifting plate; 6. Support plate; 7. Sliding plate; 8. Servo motor; 9. First threaded rod; 10. Push block; 11. Support block; 12. Fixing clamp; 13. Electric telescopic rod; 14. Bevel gear set; 15. Connecting rod; 16. Pulley set; 17. Second threaded rod. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Please refer to the appendix carefully. Figures 1-3A battery anode and cathode pre-welding servo mechanism includes a bracket body 1, a support component for placing a battery pack on the bracket body 1, a lifting component for adjusting the height of the support component on the bracket body 1, a fixing component for installing a welding head on the bracket body 1, and a driving component for driving the welding head to move up and down on the bracket body 1, and the driving component is used to drive the battery pack to move horizontally left and right synchronously.

[0025] The specific operation process of this utility model is as follows: Place the battery pack on top of the support component, and then adjust the height of the support component through the lifting component to raise the battery pack to below the welding head installed on the fixed component. At this time, the welding head is in contact with one of the battery cells. Then, start the welding head and the drive component. The welding head welds the anode and cathode of the battery pack. After the welding head has welded one battery cell, the drive component drives the welding head to rise. At the same time, the drive component drives the battery pack to move laterally by the thickness of one battery cell. At this time, the anode and cathode of the second battery cell are directly below the welding head. Then, the drive component drives the welding head to descend. At this time, the drive component does not drive the support component to move. The welding head descends and contacts the battery pack to continue welding. Repeat the operation until each battery cell of the battery pack is welded.

[0026] Please refer to Figure 1 The lifting assembly includes a hydraulic cylinder 2, which is mounted on the support body 1. The telescopic rod of the hydraulic cylinder 2 is fixedly connected to the transmission push plate 3, and the transmission push plate 3 is slidably connected to the support body 1. An inclined plate 4 is provided on the transmission push plate 3. The support assembly includes a lifting plate 5, which is slidably connected to the support body 1. The inclined surface of the inclined plate 4 is in contact with the lifting plate 5. A support plate 6 is provided above the lifting plate 5, and a sliding plate 7 is slidably connected above the support plate 6.

[0027] Start hydraulic cylinder 2. The extension rod of hydraulic cylinder 2 pushes the transmission push plate 3 to move. The transmission push plate 3 drives the inclined plate 4 to move. The inclined surface of the inclined plate 4 is in contact with the bottom of the lifting plate 5. The inclined plate 4 moves forward to push the lifting plate 5 to move upward. The lifting plate 5 drives the upper support plate 6 and sliding plate 7 to move upward. A limiting block is set on the upper part of the sliding plate 7. The limiting block can be detached and installed by means of a slot or bolt. The position of the limiting block can be adjusted according to the size of the battery pack. The limiting block is used to limit and fix the battery pack.

[0028] Please refer to Figure 2 The drive component includes a servo motor 8, which is mounted on the bracket body 1. The output end of the servo motor 8 is provided with a first threaded rod 9, which is rotatably connected to the bracket body 1. A push block 10 is threaded onto the first threaded rod 9. A support block 11 is slidably connected to the bracket body 1, and the support block 11 is located directly above the push block 10. A fixing clamp 12 for fixing the welding head is provided on the support block 11.

[0029] The servo motor 8 (which is a forward and reverse motor) is started, and the servo motor 8 drives the first threaded rod 9 to rotate. The push block 10 has a threaded hole that matches the first threaded rod 9, and the bracket body 1 is provided with a slide rail that limits the push block 10 and the support block 11. The rotation of the first threaded rod 9 drives the push block 10 to rise. After the push block 10 rises and contacts the support block 11, it pushes the support block 11 to rise. The support block 11 drives the fixed clamping block 12 to rise. The fixed clamping block 12 is provided with two clamping blocks, which are connected and fixed to each other by bolts. The fixed clamping block 12 is clamped by bolts. The welding head is set in the middle hole of the fixed clamping block 12 and is clamped and fixed by the fixed clamping block 12. The welding head can move back and forth by itself or move back and forth with the assistance of other equipment to achieve welding of the anode and cathode of the battery pack. For example, the welding head can move back and forth by a built-in small linear motor.

[0030] Please refer to Figure 2 and Figure 3 The drive assembly also includes an electric telescopic rod 13, which is disposed on both sides of the first threaded rod 9. A bevel gear set 14 is disposed between the electric telescopic rod 13 and the first threaded rod 9, and the electric telescopic rod 13 and the bevel gear are connected by a one-way bearing. Insertion rods 15 are respectively disposed on both sides of the bracket body 1. One end of the electric telescopic rod 13 is inserted into the insertion rod 15. The drive assembly also includes a second threaded rod 17, which is rotatably connected to the support plate 6 above. A sliding plate 7 is threaded onto the second threaded rod 17. A pulley set 16 is sleeved between the second threaded rod 17 and the insertion rod 15.

[0031] Both sides of the electric telescopic rod 13 are connected to the bevel gear set 14 via one-way bearings. When the first threaded rod 9 rotates forward, driving the push block 10 to rise, the first threaded rod 9 can drive the electric telescopic rods 13 on both sides to rotate via the bevel gear set 14. When the first threaded rod 9 rotates in the reverse direction, driving the push block 10 to fall, the first threaded rod 9 cannot drive the electric telescopic rods 13 on both sides to rotate via the bevel gear set 14. When the sliding plate 7 needs to move from left to right, the left electric telescopic rod 13 is driven to extend and engage with the left plug rod 15. When the sliding plate 7 needs to move from right to left, the right electric telescopic rod 13 is driven to extend and engage with the right plug rod 15. Only one rod is engaged at a time. One side of the electric telescopic rod 13 is connected to the plug-in rod 15, while the other side remains disconnected. The first threaded rod 9 rotates clockwise, driving the electric telescopic rod 13 to rotate via the bevel gear set 14. The left / right electric telescopic rod 13 drives the plug-in rod 15 on the same side to rotate. The plug-in rod 15 drives the second threaded rod 17 to rotate via the pulley set 16. The sliding plate 7 has a threaded hole that matches the second threaded rod 17, and the support plate 6 is provided with a slide rail that limits the sliding plate 7. The rotation of the second threaded rod 17 causes the sliding plate 7 to move horizontally. Since the electric telescopic rod 13 needs to rotate, a wireless electric telescopic rod 13 is used, such as the HZLD series electric telescopic rod from Haizhi Robotics.

[0032] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A battery anode and cathode pre-welding servo mechanism, comprising a support body (1), characterized in that: The bracket body (1) is provided with a support component for placing the battery pack, the bracket body (1) is provided with a lifting component for adjusting the height of the support component, the bracket body (1) is provided with a fixing component for installing the welding head, the bracket body (1) is provided with a driving component for driving the welding head to move up and down, and the driving component is used to drive the battery pack to move horizontally left and right synchronously.

2. The battery anode and cathode pre-welding servo mechanism according to claim 1, characterized in that: The lifting assembly includes a hydraulic cylinder (2), which is mounted on the support body (1). The extension rod of the hydraulic cylinder (2) is fixedly connected to the transmission push plate (3), and the transmission push plate (3) is slidably connected to the support body (1). An inclined plate (4) is provided on the transmission push plate (3).

3. The battery anode and cathode pre-welding servo mechanism according to claim 2, characterized in that: The support assembly includes a lifting plate (5), which is slidably connected to the bracket body (1), and the inclined surface of the inclined plate (4) is in contact with the lifting plate (5). A support plate (6) is provided above the lifting plate (5), and a sliding plate (7) is slidably connected above the support plate (6).

4. A battery anode and cathode pre-welding servo mechanism according to claim 3, characterized in that: The drive assembly includes a servo motor (8), which is mounted on the support body (1). The output end of the servo motor (8) is provided with a first threaded rod (9), which is rotatably connected to the support body (1). A push block (10) is threaded onto the first threaded rod (9).

5. A battery anode and cathode pre-welding servo mechanism according to claim 4, characterized in that: A support block (11) is slidably connected to the support body (1), and the support block (11) is located directly above the push block (10). A fixing clamp (12) for fixing the welding head is provided on the support block (11).

6. A battery anode and cathode pre-welding servo mechanism according to claim 5, characterized in that: The drive assembly also includes an electric telescopic rod (13), which is disposed on both sides of the first threaded rod (9). A bevel gear set (14) is disposed between the electric telescopic rod (13) and the first threaded rod (9), and the electric telescopic rod (13) and the bevel gear are connected by a one-way bearing. A plug-in rod (15) is disposed on both sides of the bracket body (1), and one end of the electric telescopic rod (13) is inserted into the plug-in rod (15).

7. A battery anode and cathode pre-welding servo mechanism according to claim 5, characterized in that: The drive assembly also includes a second threaded rod (17), which is rotatably connected to the support plate (6) above it, and the sliding plate (7) is threaded onto the second threaded rod (17). A pulley assembly (16) is fitted between the second threaded rod (17) and the plug rod (15).