Battery tab laser welding station

Abstract

The utility model relates to the technical field of battery tabs, in particular to a battery tab laser welding station which comprises a laser machine, an installation support is fixedly installed on the surface of the laser machine, an air cylinder is fixedly installed on the surface of the installation support, an ejector rod is fixedly installed at the output end of the air cylinder, and a fixing frame is fixedly installed on the surface of the laser machine. A carrier is arranged in the fixing frame. According to the utility model, the ejector rod on the air cylinder is matched with the lower bottom plate and the through hole in the adjusting block, so that the bearing in the adjusting block drives the limiting block on the upper clamping plate to disperse towards the periphery along the adjusting groove, and the battery tab can be stably adsorbed in the carrier through the matching of the air pipe and the adsorption table; when the battery tab is welded, the limiting block is pressed towards the battery tab, so that secondary positioning of the to-be-welded product is completed, the position stability in the welding process is guaranteed, and the welding precision and the stability of the product quality are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery tabs, in particular to a laser welding station for battery tabs. Background Technique

[0002] With the wide application of lithium batteries, the requirements for precision and production efficiency in the battery manufacturing process are getting higher and higher. As a key connecting component between the battery electrode and the external circuit, the quality of the battery tab directly affects the performance and safety of the battery. In order to ensure the firm connection of the battery tab, the welding technology has become the core link in the production process. At present, due to its precise control characteristics, laser welding has been widely used in the field of battery manufacturing.

[0003] However, the traditional battery tab welding equipment has the following deficiencies. The clamping mechanisms of most welding equipment are relatively simple in design. During the welding process, the battery tabs are easily affected by vibration or displacement, resulting in unstable welding effects. In addition, there is a lack of effective secondary fixing or dynamic adjustment functions, making it difficult to meet the diverse needs of different specifications of battery tabs. Content of the Utility Model

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technique.

[0005] The utility model adopts the following technical scheme: a laser welding station for battery tabs, including a laser machine. An installation bracket is fixedly installed on the surface of the laser machine. A cylinder is fixedly installed on the surface of the installation bracket. A push rod is fixedly installed at the output end of the cylinder. A fixing frame is fixedly installed on the surface of the laser machine. A carrier is arranged inside the fixing frame. The carrier includes a lower bottom plate and an upper clamping plate. A groove is formed on the surface of the lower bottom plate. An adjusting block is arranged inside the groove. A bearing is installed inside the adjusting block. A jack is formed on the surface of the lower bottom plate. A through hole is formed on the surface of the adjusting block. An adjusting groove is formed on the surface of the upper clamping plate. A limiting block is slidably connected inside the adjusting groove. The limiting block is fixedly connected with the bearing. An air pipe is fixedly installed on the surface of the upper clamping plate. An adsorption table is fixedly installed at the output end of the air pipe.

[0006] Preferably, a sliding groove is formed inside the fixing frame. A sliding block is fixedly installed on the side surface of the lower bottom plate. The sliding block is slidably connected inside the sliding groove. Here, on the premise of ensuring the stability of the carrier, a certain degree of flexibility and mobility are provided, facilitating the adjustment of the position of the carrier to align it with the position of the cylinder, improving the convenience and precision of the operation.

[0007] Preferably, a limiting plate is fixedly installed on the surface of the upper clamping plate. The limiting block is located inside the limiting plate. Here, it is ensured that the limiting block moves within a specific area, preventing it from exceeding the set range.

[0008] Preferably, the diameter of the jack is larger than that of the ejector rod, and the diameter of the perforation is smaller than that of the ejector rod. Here, the ejector rod can be accurately inserted into the perforation of the adjusting block through the jack, so that the adjusting block in the lower bottom plate groove can move between the lower bottom plate and the upper clamping plate, so that the limiting block can be loosened or tightened under the cooperation of the adjusting block and the bearing.

[0009] Preferably, the adsorption table is located between the two limiting blocks. Here, it helps to fix the battery tab more firmly. The adsorption force of the adsorption table can further enhance the fixing effect of the battery tab, so that the workpiece will not shift during welding.

[0010] Preferably, a convex block is fixedly installed on the side surface of the upper clamping plate. An embedding groove is formed inside the convex block. A positioning block is slidably connected inside the embedding groove. A spring is fixedly installed between the positioning block and the embedding groove. A positioning groove block is fixedly installed on the surface of the fixing frame. Here, the combination of the embedding groove in the convex block with the positioning block and the spring can provide a certain elasticity for the positioning block through the elastic force of the spring, so that the positioning block can automatically reset during operation, so that when welding the battery tab on the carrier, the carrier can be stably located directly above the cylinder ejector rod.

[0011] Preferably, the number of the positioning blocks and the positioning groove blocks is two groups each, and the two groups of the positioning blocks and the positioning groove blocks are symmetrically distributed on both sides of the surface of the fixing frame. Here, it helps to improve the symmetry and stability of the battery tab clamping. At the same time, it also ensures that the carrier and the battery tab will not shift during the welding process, improving the uniformity of the welding quality and the product consistency.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, through the cooperation of the ejector rod on the cylinder with the perforations on the lower bottom plate and the adjusting block, the bearing inside the adjusting block drives the limiting block on the upper clamping plate to spread around along the adjusting groove. Through the cooperation of the air pipe and the adsorption table, the battery tab can be stably adsorbed inside the carrier. When the ejector rod disengages from the jack and the perforation, the limiting block presses towards the battery tab, thus completing the secondary positioning of the product to be welded, ensuring the position stability during the welding process, and greatly improving the welding accuracy and the stability of the product quality.

[0014] 2. In the present utility model, through the cooperation of the positioning block and the spring in the embedding groove, the automatic reset function of the positioning block is realized. After each welding operation is completed, the positioning block resets under the action of the spring, preparing for the next operation. In addition, the symmetrical arrangement of the positioning block and the positioning groove block improves the balance and stability of the clamping, ensuring that the battery tab remains centered during the welding process and will not shift. Description of the Drawings

[0015] Figure 1 This utility model provides a schematic diagram of a laser welding station for battery tabs;

[0016] Figure 2 This utility model provides a schematic diagram of the cooperation between a carrier and a cylinder at a laser welding station for battery tabs;

[0017] Figure 3 This utility model provides an exploded view of a carrier at a laser welding station for battery tabs;

[0018] Figure 4 This utility model provides a bottom view of an upper clamping plate at a laser welding station for battery tabs;

[0019] Figure 5 This utility model provides a schematic diagram of a fixing bracket at a laser welding station for battery tabs.

[0020] Legend description:

[0021] 1. Laser machine; 2. Installation bracket; 3. Cylinder; 4. Push rod; 5. Fixing bracket; 6. Lower bottom plate; 7. Slide groove; 8. Slide block; 9. Groove; 10. Jack; 11. Adjusting block; 12. Perforation; 13. Bearing; 14. Upper clamping plate; 15. Adjusting groove; 16. Limiting plate; 17. Limiting block; 18. Air pipe; 19. Adsorption table; 20. Convex block; 21. Embedded groove; 22. Positioning block; 23. Spring; 24. Positioning groove block. Detailed implementation manners

[0022] In order to more clearly understand the above-mentioned objects, features and advantages of this utility model, the following further describes this utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other.

[0023] In the following description, many specific details are set forth to fully understand this utility model. However, this utility model can also be implemented in other ways different from those described herein. Therefore, this utility model is not limited by the specific embodiments disclosed in the following specification. Embodiment 1

[0024] Please refer to Figures 1-5, the present utility model provides a technical solution: a laser welding station for battery tabs, including a laser machine 1, an installation bracket 2 is fixedly installed on the surface of the laser machine 1, a cylinder 3 is fixedly installed on the surface of the installation bracket 2, a push rod 4 is fixedly installed at the output end of the cylinder 3, a fixed frame 5 is fixedly installed on the surface of the laser machine 1, a carrier is arranged inside the fixed frame 5, the carrier includes a lower bottom plate 6 and an upper clamping plate 14, a sliding groove 7 is opened on the inner side of the fixed frame 5, a sliding block 8 is fixedly installed on the side surface of the lower bottom plate 6, and the sliding block 8 is slidably connected inside the sliding groove 7. On the premise of ensuring the stability of the carrier, a certain flexibility and mobility are provided, which is convenient for adjusting the position of the carrier to align it with the position of the cylinder 3, improving the convenience and precision of the operation. A groove 9 is opened on the surface of the lower bottom plate 6, an adjusting block 11 is arranged inside the groove 9, a bearing 13 is installed inside the adjusting block 11, a jack 10 is opened on the surface of the lower bottom plate 6, a through hole 12 is opened on the surface of the adjusting block 11, an adjusting groove 15 is opened on the surface of the upper clamping plate 14, a limiting block 17 is slidably connected inside the adjusting groove 15, the limiting block 17 is fixedly connected with the bearing 13, an air pipe 18 is fixedly installed on the surface of the upper clamping plate 14, an adsorption table 19 is fixedly installed at the output end of the air pipe 18, a limiting plate 16 is fixedly installed on the surface of the upper clamping plate 14, and the limiting block 17 is located inside the limiting plate 16 to ensure that the limiting block 17 moves within a specific area and prevent it from exceeding the set range. The diameter of the jack 10 is larger than the diameter of the push rod 4, and the diameter of the through hole 12 is smaller than the diameter of the push rod 4, so that the push rod 4 can accurately insert into the through hole 12 of the adjusting block 11 through the jack 10, enabling the adjusting block 11 inside the groove 9 of the lower bottom plate 6 to move between the lower bottom plate 6 and the upper clamping plate 14, so that the limiting block 17 can be loosened or clamped under the cooperation of the adjusting block 11 and the bearing 13. The adsorption table 19 is located between the two limiting blocks 17, which helps to fix the battery tabs more firmly. The adsorption force of the adsorption table 19 can further enhance the fixing effect of the battery tabs, so that the workpiece will not shift during welding. Example 2

[0025] Please refer to Figures 4-5, a convex block 20 is fixedly installed on the side surface of the upper clamping plate 14. An embedding groove 21 is opened inside the convex block 20. A positioning block 22 is slidably connected inside the embedding groove 21. A spring 23 is fixedly installed between the positioning block 22 and the embedding groove 21. A positioning groove block 24 is fixedly installed on the surface of the fixed frame 5. The combination of the embedding groove 21 in the convex block 20, the positioning block 22 and the spring 23 can provide a certain stretchability for the positioning block 22 through the elastic force of the spring 23, so that the positioning block 22 can automatically reset during operation. When welding the battery tab on the carrier, the carrier can be stably positioned directly above the ejector rod 4 of the air cylinder 3. The number of both the positioning block 22 and the positioning groove block 24 is two groups. The two groups of positioning blocks 22 and positioning groove blocks 24 are symmetrically distributed on both sides of the surface of the fixed frame 5, which helps to improve the symmetry and stability of the clamping of the battery tab. At the same time, it also ensures that the carrier and the battery tab will not shift during the welding process, improving the uniformity of the welding quality and the product consistency.

[0026] Working principle: When the product carrier moves directly above the cylinder 3, the cylinder 3 is activated and drives the ejector rod 4 to move upward. The ejector rod 4 is inserted into the jack 10 of the lower bottom plate 6 of the carrier, and then the ejector rod 4 continues to be inserted into the through hole 12 of the adjusting block 11, so that the ejector rod 4 can push the adjusting block 11 away. At this time, the adjusting block 11 drives the limiting block 17 on the bearing 13 to move outward along the adjusting groove 15, making the battery tab and the carrier assembly enter a free and loose state, facilitating subsequent adsorption operations. Subsequently, the air pipe 18 is activated, generating negative air pressure through the adsorption table 19, firmly adsorbing the battery electrode plate on the upper clamping plate 14 of the carrier. This not only ensures the accurate positioning of the battery tab but also further prevents poor welding caused by the loosening or displacement of the electrode plate during the welding process. At this time, the ejector rod 4 of the cylinder 3 moves again and retracts from the jack 10, and the limiting block 17 tightens inward accordingly, ensuring the stable connection between the battery electrode plate and the carrier, thereby completing the secondary precise positioning of the battery tab. After the tab is accurately fixed, the laser machine 1 is activated, the galvanometer emits light and performs welding on the predetermined welding area of the tab. The laser beam can accurately act on the specified part, and the beam intensity and speed are adjusted through the computer control system to ensure the high precision and consistency of the welding process. After welding is completed, this station enters the next cycle, enabling the same operation to continue continuously, realizing batch and high-quality welding operations. The limiting plate 16 is installed in a specific area of the upper clamping plate 14, precisely controlling its positioning range by restricting the moving distance of the limiting block 17, thereby ensuring that the tab does not undergo excessive displacement during the welding process. At the same time, the adjusting block 11 is provided with a bearing 13, enabling the limiting block 17 to maintain a flexible sliding effect during the precise positioning process, further improving the working precision of the equipment. The convex block 20 and the slot 21 on the side of the upper clamping plate 14 are equipped with a positioning block 22 and a spring 23, providing an automatic reset function for the positioning block 22. After each operation is completed, the positioning block 22 is reset under the action of the spring 23, making the station enter the standby state again to prepare for the next welding, thereby reducing the manual adjustment time and improving the working efficiency of the equipment. In addition, the cooperation between the positioning block 22 and the positioning groove block 24 effectively guarantees the stability of the positioning block 22, keeping the welding carrier directly above the ejector rod 4 of the cylinder 3 all the time, thereby enhancing the accuracy of welding.

[0027] The above is only a preferred embodiment of the present invention and is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A laser welding station for battery tabs, comprising a laser machine (1), characterized in that: An installation bracket (2) is fixedly installed on the surface of the laser machine (1). A cylinder (3) is fixedly installed on the surface of the installation bracket (2). A push rod (4) is fixedly installed at the output end of the cylinder (3). A fixing frame (5) is fixedly installed on the surface of the laser machine (1). A carrier is arranged inside the fixing frame (5). The carrier includes a lower bottom plate (6) and an upper clamping plate (14). A groove (9) is formed on the surface of the lower bottom plate (6). An adjusting block (11) is arranged inside the groove (9). A bearing (13) is installed inside the adjusting block (11). A jack (10) is formed on the surface of the lower bottom plate (6). A through hole (12) is formed on the surface of the adjusting block (11). An adjusting groove (15) is formed on the surface of the upper clamping plate (14). A limiting block (17) is slidably connected inside the adjusting groove (15). The limiting block (17) is fixedly connected to the bearing (13). An air pipe (18) is fixedly installed on the surface of the upper clamping plate (14). An adsorption table (19) is fixedly installed at the output end of the air pipe (18).

2. The laser welding station for battery tabs according to claim 1, wherein: A sliding groove (7) is formed inside the inner side of the fixing frame (5). A sliding block (8) is fixedly installed on the side surface of the lower bottom plate (6). The sliding block (8) is slidably connected inside the sliding groove (7).

3. The laser welding station for battery tabs according to claim 1, characterized in that: A limiting plate (16) is fixedly installed on the surface of the upper clamping plate (14). The limiting block (17) is located inside the limiting plate (16).

4. The battery tab laser welding station according to claim 1, wherein: The diameter of the jack (10) is larger than the diameter of the push rod (4). The diameter of the through hole (12) is smaller than the diameter of the push rod (4).

5. The laser welding station for battery tabs according to claim 1, wherein: The adsorption table (19) is located between two groups of limiting blocks (17).

6. The laser welding station for battery tabs according to claim 1, wherein: A convex block (20) is fixedly installed on the side surface of the upper clamping plate (14). An embedding groove (21) is formed inside the convex block (20). A positioning block (22) is slidably connected inside the embedding groove (21). A spring (23) is fixedly installed between the positioning block (22) and the embedding groove (21). A positioning groove block (24) is fixedly installed on the surface of the fixing frame (5).

7. The laser welding station for battery tabs according to claim 6, wherein: The number of the positioning blocks (22) and the positioning groove blocks (24) is two groups. The two groups of the positioning blocks (22) and the positioning groove blocks (24) are symmetrically distributed on both sides of the surface of the fixing frame (5).

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