Battery welding structure
By combining the conveyor belt assembly and electromagnetic slide rail within the frame with components such as hydraulic cylinders, clamps, and positioning plates, multi-level stable positioning of the battery before welding is achieved, solving the problem of battery displacement during welding and improving welding accuracy and device stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU JIANZHONG LITHIUM BATTERY
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-21
AI Technical Summary
Existing battery welding structures are prone to battery misalignment during transmission, leading to inaccurate welding and reducing the practicality of the welding structure.
The system employs a conveyor belt assembly and electromagnetic slide rail within the frame, combined with components such as hydraulic cylinders, clamping plates, positioning plates, and torsion springs. Through multi-stage clamping and positioning, it ensures that the battery is stably positioned before welding. The hydraulic cylinder then drives the welding components to move to the appropriate position for welding.
It improves the stability of the battery welding process, ensures welding accuracy, and enhances the stability and positioning effect of the device.
Smart Images

Figure CN224143803U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery welding technology, specifically a battery welding structure. Background Technology
[0002] Power batteries are a type of battery that uses metal or alloy as positive / negative electrode materials and a non-aqueous electrolyte solution. During the production process of power batteries, tabs and cover plates need to be welded on the metal top rod of the power battery.
[0003] In some existing battery welding structures, the battery is moved to the vicinity of the welding structure by a conveyor component for welding. However, the battery is prone to shifting during the transmission process, which makes it impossible for the welding needle to accurately weld at the welding position, resulting in unqualified welded products and reducing the practicality of the welding structure. Therefore, a battery welding structure is proposed to address the above problems. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A battery welding structure of this utility model includes a frame, a conveyor belt assembly and an electromagnetic slide rail on the inner side of the frame, a first hydraulic cylinder on the outer side of the electromagnetic slide rail, a welding assembly fixedly connected to the output end of the first hydraulic cylinder, a second hydraulic cylinder fixedly connected to the outer side of the frame, a clamping plate fixedly connected to the output end of the second hydraulic cylinder, a positioning plate rotatably connected to the inner side of the clamping plate, a rotating rod fixedly connected to the outer side of the positioning plate, and a torsion spring fixedly connected to one end of the rotating rod. The torsion spring and the clamping plate are fixedly connected. This step, by setting up the clamping plate, positioning plate, rotating rod, and torsion spring, allows the battery to move via the conveyor belt assembly. The battery is moved between the clamping plates, then the conveyor belt assembly stops. The second hydraulic cylinder moves the clamping plates, which in turn move the positioning plate, bringing one end of the positioning plate into contact with the battery. The positioning plate then begins to rotate until the side of the positioning plate closest to the battery is pressed against it. Simultaneously, the movement of the clamping plates brings them closer together, further restricting and fixing the battery's position. Then, an electromagnetic slide rail moves the welding assembly back and forth, moving it to a suitable position. The first hydraulic cylinder then moves the welding assembly down to contact the battery for welding. During battery welding, the positioning plate, in conjunction with the clamping plates, centers the battery, making its position more stable and improving the stability of the device.
[0006] Preferably, a third hydraulic cylinder is fixedly connected to the outer side of the frame, a lifting plate is fixedly connected to the output end of the third hydraulic cylinder, and an insertion rod is fixedly connected to the outer side of the lifting plate. This step, by setting up the third hydraulic cylinder, the lifting plate, and the insertion rod, allows the positioning plate to rotate to clamp the battery. Then, the third hydraulic cylinder drives the lifting plate to move downward, and the lifting plate drives the insertion rod to move downward and insert into the recessed groove on the inner side of the positioning plate, thereby further reinforcing the position of the positioning plate, making its clamping of the battery more stable, and improving the stability of the device.
[0007] Preferably, a pressure plate is fixedly connected to the outer side of the lifting plate, and the pressure plate and the positioning plate are used in conjunction. In this step, by setting the pressure plate, after the clamping plate and the positioning plate clamp and position the battery, when the lifting plate drives the insertion rod to insert into the inner side of the positioning plate, it will simultaneously drive the pressure plate to move down, so that the pressure plate moves to fit tightly against the upper side of the battery, thereby cooperating with the conveyor belt assembly to further clamp and fix the upper and lower sides of the battery, making the battery positioning more stable and improving the stability of the device.
[0008] Preferably, a limit rod is fixedly connected to the outer side of the lifting plate, and a limit plate is slidably connected to the outer side of the limit rod. The limit plate and the frame are fixedly connected. This step, by setting the limit rod and the limit plate, restricts the movement trajectory of the limit rod when the lifting plate moves up and down, and further restricts the movement trajectory of the lifting plate by the limit rod, making the movement of the lifting plate more stable and improving the stability of the device.
[0009] Preferably, a friction pad is fixedly connected to the outside of the positioning plate, and the friction pad and the clamping plate are used in conjunction. By setting the friction pad, when the clamping plate moves to fit the battery, the positioning plate will simultaneously drive the friction pad to fit the battery. The battery, in conjunction with the positioning plate, squeezes the friction pad, which further increases the coefficient of friction between the positioning plate and the battery, thereby making the clamping and positioning of the battery more stable and improving the stability of the device.
[0010] Preferably, the positioning plate has an installation groove on its inner side, and a roller is rotatably connected to the inner side of the installation groove. This step, by setting the installation groove and the roller, allows the positioning plate to contact the battery first, and then the roller contacts and rubs against the battery first, causing the roller to rotate. This makes it easier and more convenient for the positioning plate to be pushed by the battery, thus improving the stability of the device.
[0011] The advantages of this utility model are:
[0012] 1. This utility model, by setting up clamping plates, positioning plates, rotating rods, and torsion springs, uses a conveyor belt assembly to move the battery, causing it to move between the clamping plates. The conveyor belt assembly then stops, and a second hydraulic cylinder moves the clamping plates, which in turn move the positioning plates, bringing one end of the positioning plates into contact with the battery. The positioning plates then begin to rotate until the side closest to the battery is firmly against it. Simultaneously, the movement of the clamping plates brings them closer together, further restricting and fixing the battery's position. An electromagnetic slide rail then moves the welding assembly back and forth, moving it to a suitable position. A first hydraulic cylinder then moves the welding assembly down to contact the battery for welding. During welding, the positioning plates, in conjunction with the clamping plates, center the battery, making its position more stable and improving the overall stability of the device.
[0013] 2. By setting up a third hydraulic cylinder, a lifting plate, and an insertion rod, the positioning plate rotates to clamp the battery. Then, the third hydraulic cylinder drives the lifting plate to move down, and the lifting plate drives the insertion rod to move down and insert into the recessed groove on the inner side of the positioning plate. This further reinforces the position of the positioning plate, making its clamping of the battery more stable and improving the stability of the device. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0015] Figure 1 This is a front view of the structure in this utility model;
[0016] Figure 2 This is a top view of the structure in this utility model;
[0017] Figure 3 This is a schematic diagram of the electromagnetic slide rail structure in this utility model;
[0018] Figure 4 This is a schematic diagram of the clamping plate structure in this utility model;
[0019] Figure 5 This is a schematic diagram of the lifting plate structure in this utility model.
[0020] In the diagram: 1. Frame; 2. Conveyor belt assembly; 3. Electromagnetic slide rail; 4. First hydraulic cylinder; 5. Welding assembly; 6. Second hydraulic cylinder; 7. Clamping plate; 8. Positioning plate; 9. Rotating rod; 10. Torsion spring; 11. Third hydraulic cylinder; 12. Lifting plate; 13. Inserting rod; 14. Pressure plate; 15. Limiting rod; 16. Limiting plate; 17. Friction pad; 18. Mounting groove; 19. Roller. Detailed Implementation
[0021] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0022] Specific implementation examples are given below.
[0023] Please see Figures 1 to 5 As shown, a battery welding structure includes a frame 1, a conveyor belt assembly 2 disposed inside the frame 1, an electromagnetic slide rail 3 disposed inside the frame 1, a first hydraulic cylinder 4 disposed outside the electromagnetic slide rail 3, a welding assembly 5 fixedly connected to the output end of the first hydraulic cylinder 4, a second hydraulic cylinder 6 fixedly connected to the outside of the frame 1, a clamping plate 7 fixedly connected to the output end of the second hydraulic cylinder 6, a positioning plate 8 rotatably connected to the inside of the clamping plate 7, a rotating rod 9 fixedly connected to the outside of the positioning plate 8, a torsion spring 10 fixedly connected to one end of the rotating rod 9, and the torsion spring 10 fixedly connected to the clamping plate 7; this step, by setting the clamping plate 7, the positioning plate 8, the rotating rod 9, and the torsion spring 10, drives the battery to move through the conveyor belt assembly 2, causing the battery to move to the clamping plate 7. Between plates 7, the conveyor belt assembly 2 stops, and the second hydraulic cylinder 6 drives the clamping plate 7 to move. The clamping plate 7 drives the positioning plate 8 to move, so that one end of the positioning plate 8 contacts the battery, causing the positioning plate 8 to start rotating until the side of the positioning plate 8 closest to the battery is in close contact with the battery. At the same time, the movement of the clamping plates 7 brings them closer together, thereby further restricting and fixing the position of the battery. Then, the electromagnetic slide rail 3 drives the welding assembly 5 to move back and forth, moving the welding assembly 5 to a suitable position. The first hydraulic cylinder 4 drives the welding assembly 5 to move down to contact the battery, thereby performing welding. During battery welding, the positioning plate 8, in conjunction with the clamping plate 7, centers and positions the battery, making the battery position more stable and improving the stability of the device.
[0024] Furthermore, such as Figure 1 and Figure 5As shown, a third hydraulic cylinder 11 is fixedly connected to the outer side of the frame 1, and a lifting plate 12 is fixedly connected to the output end of the third hydraulic cylinder 11. A plug rod 13 is fixedly connected to the outer side of the lifting plate 12. In this step, by setting the third hydraulic cylinder 11, the lifting plate 12, and the plug rod 13, the positioning plate 8 is rotated to clamp the battery. Then, the third hydraulic cylinder 11 drives the lifting plate 12 to move down, and the lifting plate 12 drives the plug rod 13 to move down and insert it into the recessed groove on the inner side of the positioning plate 8. This further reinforces the position of the positioning plate 8, making its clamping of the battery more stable and improving the stability of the device.
[0025] Furthermore, such as Figure 1 and Figure 5 As shown, a pressure plate 14 is fixedly connected to the outer side of the lifting plate 12. The pressure plate 14 and the positioning plate 8 are used together. In this step, by setting the pressure plate 14, after the clamping plate 7 and the positioning plate 8 clamp and position the battery, when the lifting plate 12 drives the insertion rod 13 to insert into the inner side of the positioning plate 8, it will simultaneously drive the pressure plate 14 to move down, so that the pressure plate 14 moves to be close to the upper side of the battery. This, together with the conveyor belt assembly 2, further clamps and fixes the upper and lower sides of the battery, making the battery positioning more stable and improving the stability of the device.
[0026] Furthermore, such as Figure 1 As shown, a limiting rod 15 is fixedly connected to the outer side of the lifting plate 12, and a limiting plate 16 is slidably connected to the outer side of the limiting rod 15. The limiting plate 16 is fixedly connected to the frame 1. This step, by setting the limiting rod 15 and the limiting plate 16, restricts the movement trajectory of the limiting rod 15 when the lifting plate 12 moves up and down, thereby further restricting the movement trajectory of the lifting plate 12 by the limiting rod 15, making the movement of the lifting plate 12 more stable and improving the stability of the device.
[0027] Furthermore, such as Figure 1 and Figure 4 As shown, a friction pad 17 is fixedly connected to the outer side of the positioning plate 8. The friction pad 17 and the clamping plate 7 are used together. In this step, by setting the friction pad 17, when the clamping plate 7 moves to press against the battery, the positioning plate 8 will simultaneously drive the friction pad 17 to press against the battery. The battery, together with the positioning plate 8, squeezes the friction pad 17, which further increases the coefficient of friction between the positioning plate 8 and the battery, thereby making the clamping and positioning of the battery more stable and improving the stability of the device.
[0028] Furthermore, such as Figure 4As shown, the positioning plate 8 has an installation groove 18 on its inner side, and a roller 19 is rotatably connected to the inner side of the installation groove 18. This step, by setting the installation groove 18 and the roller 19, allows the positioning plate 8 to contact the battery first, and then the roller 19 to contact and rub against the battery first, causing the roller 19 to rotate. This makes it easier and more convenient for the positioning plate 8 to be pushed by the battery, thus improving the stability of the device.
[0029] The working principle is as follows: the conveyor belt assembly 2 moves the battery between the clamping plates 7. Then the conveyor belt assembly 2 stops, and the second hydraulic cylinder 6 moves the clamping plates 7. The clamping plates 7 move the positioning plates 8, so that one end of the positioning plates 8 contacts the battery and is pushed, causing the positioning plates 8 to start rotating until the side of the positioning plates 8 close to the battery. Thus, the positioning plates 8 cooperate to initially clamp and position the battery. At the same time, the movement of the clamping plates 7 brings them closer together, thereby further restricting and positioning the battery position. Then, the electromagnetic slide rail 3 moves the welding assembly 5 back and forth, moving the welding assembly 5 to a suitable position. The first hydraulic cylinder 4 moves the welding assembly 5 down to contact the battery, thus performing welding.
[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A battery welding structure comprising a frame (1), characterized in that: A conveyor belt assembly (2) is provided inside the frame (1), an electromagnetic slide rail (3) is provided inside the frame (1), a first hydraulic cylinder (4) is provided outside the electromagnetic slide rail (3), a welding assembly (5) is fixedly connected to the output end of the first hydraulic cylinder (4), a second hydraulic cylinder (6) is fixedly connected to the outside of the frame (1), a clamping plate (7) is fixedly connected to the output end of the second hydraulic cylinder (6), a positioning plate (8) is rotatably connected inside the clamping plate (7), a rotating rod (9) is fixedly connected to the outside of the positioning plate (8), a torsion spring (10) is fixedly connected to one end of the rotating rod (9), and the torsion spring (10) and the clamping plate (7) are fixedly connected.
2. A battery weldment as defined in claim 1, wherein: A third hydraulic cylinder (11) is fixedly connected to the outside of the frame (1), and a lifting plate (12) is fixedly connected to the output end of the third hydraulic cylinder (11). A plug rod (13) is fixedly connected to the outside of the lifting plate (12).
3. A battery weldment as defined in claim 2, wherein: A pressure plate (14) is fixedly connected to the outside of the lifting plate (12), and the pressure plate (14) and the positioning plate (8) are used together.
4. The battery weldment of claim 3, wherein: A limiting rod (15) is fixedly connected to the outside of the lifting plate (12), and a limiting plate (16) is slidably connected to the outside of the limiting rod (15). The limiting plate (16) and the frame (1) are fixedly connected.
5. A battery weldment as defined in claim 4, wherein: A friction pad (17) is fixedly connected to the outside of the positioning plate (8), and the friction pad (17) and the clamping plate (7) are used together.
6. A battery weldment as defined in claim 5, wherein: The positioning plate (8) has an installation groove (18) on its inner side, and a roller (19) is rotatably connected to the inner side of the installation groove (18).