Automatic spot welding machine for battery pole piece

Abstract

The utility model relates to the technical field of spot welding machines, and discloses a battery pole piece automatic spot welding machine which comprises an electric welding machine shell, a bearing plate is fixedly connected to the inner wall of the electric welding machine shell, a fixing assembly is arranged at the top of the bearing plate, a sliding rail operation table is fixedly connected to the outer wall of the bearing plate, and an absorption assembly is arranged on the outer wall of the sliding rail operation table. The fixing assembly comprises two second clamping plates, the bottom of one second clamping plate is fixedly connected to the top of the bearing plate, the bottom of the other second clamping plate is attached to the top of the bearing plate, a sliding plate is slidably connected to the interior of each second clamping plate, and a first clamping plate is fixedly connected to the top of each sliding plate; a connecting plate is fixed to one side of each second clamping plate. The height of the first clamping plate is adjusted through sliding of the sliding plate in the second clamping plate, the height of the first clamping plate is fixed through clamping of the clamping column and the interior of the sliding plate, the purpose of adjusting the height of a clamping component is achieved, and the applicability of equipment is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of spot welding machine technology, and in particular to an automatic spot welding machine for battery electrodes. Background Technology

[0002] In today's booming battery industry, automatic spot welding machines for battery electrodes play an irreplaceable and crucial role as core equipment to ensure the quality and efficiency of battery manufacturing. From small batteries in consumer electronics to power lithium batteries for new energy vehicles, their production processes are inseparable from precise and efficient spot welding machines. Spot welding machines release powerful currents instantly, causing the battery electrodes to heat up, melt, and connect together at the contact points, completing the welding process. This has a decisive impact on the performance, safety, and lifespan of the battery.

[0003] Currently available automatic spot welding machines for battery electrodes employ a relatively traditional battery mounting frame design. They typically consist of a sturdy metal frame as the main support, coupled with clamping components shaped to fit the electrode contours. Their working principle is based on mechanical pressure clamping; that is, the electrode is placed in a preset fixed position manually or using simple mechanical devices, and then a certain clamping force is applied to ensure the electrode's stable position and current conduction during spot welding, achieving reliable welding. This design was well-suited to basic production needs in the past when battery products were relatively simple and specifications were relatively uniform.

[0004] However, with the rapid development of battery technology and the emergence of various new types of batteries, the specifications of battery electrode holders have become increasingly diverse. The height of the holders varies significantly depending on the design purpose and capacity requirements of different battery models. For example, the height of the holders for large batteries increases substantially, while the height of the holders for batteries designed for miniaturization and portability is correspondingly lower. However, traditional automatic battery electrode spot welding machines lack a flexible adjustment mechanism for the clamping height of the holders, making it difficult to achieve targeted clamping and fixation for these battery holders of varying heights. This leads to positioning deviations of the electrodes during welding, making it impossible to ensure precise weld point placement, greatly affecting welding quality and reducing the equipment's adaptability to diverse battery production. Therefore, an automatic battery electrode spot welding machine is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic spot welding machine for battery electrodes, which aims to improve the problem that traditional electric welding machines have a relatively fixed clamping height for battery holders, making it difficult to perform targeted clamping and fixing according to battery holders of different heights.

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

[0007] An automatic spot welding machine for battery electrodes includes a welding machine housing, a support plate fixedly connected to the inner wall of the welding machine housing, a fixing component provided on the top of the support plate, a slide rail operating table fixedly connected to the outer wall of the support plate, and an absorption component provided on the outer wall of the slide rail operating table.

[0008] The fixing assembly includes two clamping plates, one of which is fixedly connected to the top of the support plate at its bottom, and the other of which is attached to the top of the support plate at its bottom. Each clamping plate has a sliding plate slidably connected inside, and each sliding plate has a clamping plate fixedly connected to its top. Each clamping plate has a connecting plate fixedly connected to one side, and each connecting plate has multiple clamping posts slidably connected inside. The clamping posts engage with the inside of the sliding plate. A telescopic cylinder is fixedly connected to the top of the support plate, and the output end of the telescopic cylinder is fixedly connected to the outer wall of one side of the connecting plate. A pushing component is provided on the outer wall of the clamping posts.

[0009] As a further description of the above technical solution:

[0010] The pushing assembly includes multiple transmission columns, each transmission column engaging with the inner wall of a locking column. Multiple connecting frames are fixedly connected to one side of each connecting plate. A transmission plate is rotatably connected inside each connecting frame. A spring is provided on one side of each connecting frame. One end of each spring is fixedly connected to the outer wall of the transmission plate, and the other end of each spring is fixedly connected to the outer wall of the connecting frame. One side of each transmission plate is fixedly connected to the outer wall of the transmission column.

[0011] As a further description of the above technical solution:

[0012] Each of the connecting plates has a connecting block fixedly connected to both sides, and a limit slider is slidably connected inside each connecting block. A pressing plate is fixedly connected to the outer wall of each limit slider, and the pressing plate is in contact with the transmission plate.

[0013] As a further description of the above technical solution:

[0014] The absorption assembly includes a suction head, one side of which is fixedly connected to the outer wall of the slide rail operating table, and a conveying pipe is fixedly connected to the top of the suction head, extending through to the outside of the welding machine housing.

[0015] As a further description of the above technical solution:

[0016] One end of the conveying pipe is fixedly connected to a connecting shell, and one side of the connecting shell is fixedly connected to the outer wall of the welding machine housing.

[0017] As a further description of the above technical solution:

[0018] A suction fan is fixedly connected to one side of the welding machine housing. A connecting pipe is fixedly connected to the input end of the suction fan, and the top end of the connecting pipe is fixedly connected to the bottom of the connecting housing.

[0019] As a further description of the above technical solution:

[0020] A fixing ring is fixedly connected to the top of the inner wall of the connecting shell, a limit ring is rotatably connected to the inner wall of the fixing ring, and a filter screen is fixedly connected to the inner wall of the limit ring.

[0021] As a further description of the above technical solution:

[0022] A rotating frame is fixedly connected to the bottom of the inner wall of the connecting shell. The rotating frame consists of a rotating wheel and a fixed frame. A second transmission column is fixedly connected to the top of the rotating frame. The top of the second transmission column is fixedly connected to the bottom of the filter screen.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the height of the first clamping plate is adjusted by sliding the sliding plate inside the second clamping plate, and the height of the first clamping plate is fixed by the engagement between the clamping post and the inside of the sliding plate, thereby achieving the purpose of adjusting the height of the clamping component. This solves the problem that the clamping height of the battery fixing frame of the traditional electric welding machine is relatively fixed and it is difficult to clamp and fix it according to the battery fixing frame of different heights, thus enhancing the applicability of the equipment.

[0025] 2. In this utility model, metal shavings are drawn into the connecting shell by a suction fan and filtered through a filter screen. At the same time, the rotation of the impeller inside the rotating frame drives the filter screen at the top of the transmission column to rotate, achieving the effect of collecting and cleaning metal shavings. This solves the problem that traditional electric welding machines easily generate metal shavings that splatter in all directions, increasing the difficulty of subsequent cleaning, and enhances the cleaning effect of the equipment. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an automatic spot welding machine for battery electrodes proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the suction fan structure of an automatic spot welding machine for battery electrodes proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the card plate structure of an automatic spot welding machine for battery electrodes proposed in this utility model;

[0029] Figure 4 This is an exploded view of the pressing plate structure of an automatic spot welding machine for battery electrodes proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the clamping post structure of an automatic spot welding machine for battery electrodes proposed in this utility model;

[0031] Figure 6 This is a schematic diagram of the cross-sectional structure of the connecting block of an automatic spot welding machine for battery electrodes proposed in this utility model;

[0032] Figure 7 This is a schematic diagram of the cross-sectional structure of the connecting shell of an automatic spot welding machine for battery electrodes proposed in this utility model.

[0033] Legend:

[0034] 1. Welding machine housing; 2. Bearing plate; 3. Slide rail operating table; 4. Suction head; 5. Conveying pipe; 6. Telescopic cylinder; 7. Clamping plate one; 8. Clamping plate two; 9. Slide plate; 10. Connecting plate; 11. Limiting slider; 12. Pressing plate; 13. Connecting block; 14. Connecting frame; 15. Spring; 16. Transmission plate; 17. Transmission column one; 18. Clamping column; 19. Connecting shell; 20. Filter screen; 21. Limiting ring; 22. Fixing ring; 23. Transmission column two; 24. Rotary wheel frame; 25. Connecting pipe; 26. Suction fan. Detailed Implementation

[0035] 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 protection scope of the present utility model.

[0036] Reference Figures 1-6 An embodiment of this utility model is provided: an automatic spot welding machine for battery electrodes, including a welding machine housing 1, a bearing plate 2 fixedly connected to the inner wall of the welding machine housing 1, a fixing component provided on the top of the bearing plate 2, a slide rail operating table 3 fixedly connected to the outer wall of the bearing plate 2, and an absorption component provided on the outer wall of the slide rail operating table 3.

[0037] The fixing assembly includes two clamping plates 8. One clamping plate 8 is fixedly connected to the top of the support plate 2 at its bottom to provide a stable support base. The bottom of the other clamping plate 8 fits against the top of the support plate 2 to ensure the balance of the overall structure. Each clamping plate 8 has a sliding plate 9 inside, and the design of the sliding plate 9 makes height adjustment more flexible. Each sliding plate 9 has a clamping plate 7 fixedly connected to its top. The clamping plate 7 is used to directly clamp or fix the target object. Each clamping plate 8 has a connecting plate 10 fixed to one side. The connecting plate 10 acts as a guide mechanism to ensure the accurate movement direction of the clamping posts 18. Each connecting plate 10 has multiple clamping posts 18 slidably connected inside. The clamping posts 18 and the sliding plate 18 are connected to the sliding plate 18. The plates 9 are internally interlocked, which fixes the position of the slide plate 9. A telescopic cylinder 6 is fixedly connected to the top of the bearing plate 2. The output end of the telescopic cylinder 6 is fixedly connected to the outer wall of the connecting plate 10 on one side. The telescopic cylinder 6 drives the connecting plate 10 to move by outputting power, thereby realizing the adjustment function of the overall structure. A pushing component is provided on the outer wall of the locking post 18. The pushing component includes multiple transmission columns 17. Each transmission column 17 is interlocked with the inner wall of the locking post 18. The transmission column 17 is used to transmit force and push the locking post 18 to move. Multiple connecting frames 14 are fixedly connected to one side of each connecting plate 10. The connecting frames 14 serve as a support structure to ensure the stable rotation of the transmission plate 16. Each connecting frame 14 has a rotatably connected transmission plate 16 inside. The transmission plate 16 is used to transmit the force of the spring 15 to the transmission column 17. Each connecting frame 14 has a spring 15 on one side, which provides elastic restoring force. One end of each spring 15 is fixedly connected to the outer wall of the transmission plate 16, and the other end of each spring 15 is fixedly connected to the outer wall of the connecting frame 14. The design of the spring 15 ensures that the locking column 18 can automatically reset after the pressing plate 12 is released. Each transmission plate 16 is fixedly connected to the outer wall of the transmission column 17 on one side. The transmission plate 16 rotates... The drive column 17 is moved. Each connecting plate 10 has a connecting block 13 fixedly connected to both sides. The connecting block 13 is used to install the limiting slider 11 to ensure the stability of its movement direction. Each connecting block 13 has a limiting slider 11 slidably connected inside. The limiting slider 11 is used to limit the movement range of the pressing plate 12. The pressing plate 12 is fixedly connected to the outer wall of each limiting slider 11. The pressing plate 12 serves as the operation interface, making it easy for the user to apply pressing pressure. The pressing plate 12 is in contact with the drive plate 16 to ensure that the pressing pressure can be effectively transmitted to the drive plate 16, thereby driving the locking column 18 to move.

[0038] Specifically, during the clamping and fixing of the motor mounting bracket, the operator first presses the pressing plate 12, applying external force to push the limiting slider 11 to slide precisely along the preset groove inside the connecting block 13. The movement of the limiting slider 11 causes the transmission plate 16 to rotate. During the rotation, the transmission plate 16 applies a compressive force to the spring 15, causing it to store elastic potential energy. At the same time, the transmission column 17, driven by the transmission plate 16, pushes the locking column 18 to slide directionally on the inner wall of the connecting plate 10 until the locking column 18 is completely removed from the slot on the inner wall of the slide plate 9. The connecting plate 10, as a guide mechanism, precisely limits the movement direction of the locking column 18 to ensure the stability of its movement trajectory. Subsequently, the operator can pull the locking plate 7 to adjust the position, so that the slide plate 9 slides precisely along the groove inside the locking plate 8. The predetermined track slides to achieve precise adjustment of the height of the clamping plate 7. Once the desired height is reached, the operator releases the pressure on the pressing plate 12. At this time, the spring 15 releases its stored elastic potential energy, pushing the locking pin 18 to re-engage in the corresponding slot inside the slide plate 9. Simultaneously, the rebound force of the spring 15 also pushes the limiting slider 11 to reset and slide inside the connecting block 13. The sliding groove structure inside the connecting block 13 effectively limits the movement direction of the limiting slider 11, preventing the limiting slider 11 from accidentally disengaging from the connecting block 13. Finally, through the reliable engagement of the locking pin 18 with the slot inside the slide plate 9, the height of the clamping plate 7 is securely fixed, realizing the function of targeted adjustment of the clamp height according to different usage requirements, significantly enhancing the applicability and ease of operation of the equipment.

[0039] Reference Figure 2 and Figure 7The absorption assembly includes a suction head 4, one side of which is fixedly connected to the outer wall of the slide rail operating table 3 for directly absorbing the spattered metal particles generated during welding. A conveying pipe 5 is fixedly connected to the top of the suction head 4, serving as an airflow channel to transport the absorbed particles to the subsequent processing unit. The conveying pipe 5 extends through to the outside of the welding machine housing 1, and one end of the conveying pipe 5 is fixedly connected to a connecting shell 19. The connecting shell 19 serves as the core component for collection and filtration, separating the metal particles from the air. One side of the connecting shell 19 is fixedly connected to the outer wall of the welding machine housing 1 to ensure the stability of the overall structure. A suction fan 26 is fixedly connected to one side of the welding machine housing 1, providing negative pressure suction to drive the entire absorption process. A connecting pipe 25 is fixedly connected to the input end of the suction fan 26, which is used to deliver the filtered air to the suction fan 26. The top end of the connecting pipe 25 is fixedly connected to the bottom of the connecting shell 19. To ensure the airflow path is sealed, a fixing ring 22 is fixedly connected to the top of the inner wall of the connecting shell 19. The fixing ring 22 serves as a support structure to ensure the stable rotation of the limiting ring 21. The limiting ring 21 is rotatably connected to the inner wall of the fixing ring 22. The limiting ring 21 is used to limit the rotation range of the filter screen 20 to prevent it from shifting or tilting. The filter screen 20 is fixedly connected to the inner wall of the limiting ring 21. The filter screen 20 is used to intercept metal particles while allowing air to pass through, thus separating particles from air. A rotating wheel frame 24 is fixedly connected to the bottom of the inner wall of the connecting shell 19. The rotating wheel frame 24 consists of a rotating wheel and a fixing frame. It is used to support the transmission column 23 and transmit rotational force. The transmission column 23 is fixedly connected to the top of the rotating wheel frame 24. The transmission column 23 is used to transmit the rotational force of the rotating wheel frame 24 to the filter screen 20, driving it to rotate. The top of the transmission column 23 is fixedly connected to the bottom of the filter screen 20 to ensure the effective transmission of rotational force.

[0040] Specifically, in the process of absorbing the splashed metal particles, the suction fan 26 is first started. The negative pressure suction generated by the suction fan 26 is efficiently transmitted to the output end of the suction head 4 through the delivery pipe 5. The suction head 4 sucks in the fine metal particles generated during the spot welding process and delivers them to the inside of the connecting shell 19 through the delivery pipe 5. The connecting shell 19 serves as a collection device, and a filter screen 20 is installed inside it to separate and collect the metal particles. The filter screen 20 adopts a high-precision mesh structure, which can effectively intercept metal particles while allowing air to pass through. Under the action of suction, the fan blades on the surface of the rotating frame 24 begin to rotate. This rotational force is transmitted to the filter screen through the transmission column 23. 20 drives the filter screen 20 to rotate synchronously. The rotation of the filter screen 20 can throw out metal particles stuck in its internal holes, avoiding clogging of the filter screen 20 due to particle accumulation, thus ensuring the durability of filtration efficiency. At the same time, the rotation of the filter screen 20 is precisely limited by the cooperation of the limiting ring 21 and the fixed ring 22. The limiting ring 21 rotates on the inner wall of the fixed ring 22, effectively preventing the filter screen 20 from tilting or deviating during high-speed rotation, ensuring its operational stability and reliability. The filtered clean air is delivered to the external environment through the connecting pipe 25 and the suction fan 26, completing the air purification process and achieving efficient cleaning of splashed metal particles on the surface of the equipment.

[0041] Working principle: During the clamping and fixing of the battery holder, pressing the pressing plate 12 pushes the limiting slider 11 to slide inside the connecting block 13, causing the transmission plate 16 to rotate. While rotating, the transmission plate 16 compresses the spring 15, and through the transmission column 17, pushes the locking pin 18 to slide on the inner wall of the connecting plate 10 until the locking pin 18 is moved out of the inner wall of the slide plate 9. The connecting plate 10 limits the movement direction of the locking pin 18. Next, pulling the locking plate 7 moves the slide plate 9 inside the locking plate 8, thereby adjusting the height of the locking plate 7. Release the pressure on the pressing plate 12, and use the rebound force of the spring 15 to push the locking post 18 back into the slot inside the slide plate 9. The rebound force of the spring 15 will push the limiting slider 11 to slide inside the connecting block 13. The sliding groove inside the connecting block 13 limits the movement direction of the limiting slider 11, preventing the limiting slider 11 from accidentally sliding out of the connecting block 13. By locking the locking post 18 into the inside of the slide plate 9, the height of the clamping plate 7 is fixed, achieving the purpose of targeted adjustment of the clamp height according to different usage requirements, thus enhancing the applicability of the equipment.

[0042] During the absorption of splashed metal particles, the suction fan 26 is activated, and the suction force generated by the suction fan 26 is transmitted to the output end of the suction head 4 through the conveying pipe 5. The small metal particles generated by spot welding are absorbed into the connecting shell 19 at one end of the conveying pipe 5. The metal particles are separated and collected by the filter screen 20 inside the connecting shell 19. At the same time, the suction force drives the fan blades on the surface of the rotating frame 24 to rotate, and this rotational force is transmitted to the surface of the filter screen 20 through the transmission column 23, causing the filter screen 20 to rotate synchronously. This throws out the metal particles stuck in the holes inside the filter screen 20, preventing the filter screen 20 from clogging. While the filter screen 20 is rotating, it drives the limiting ring 21 to rotate inside the fixed ring 22, thereby limiting the rotation direction of the filter screen 20 and preventing the filter screen 20 from tilting. The filtered air is delivered to the outside through the connecting pipe 25 and the suction fan 26, achieving a good cleaning effect on the surface of the equipment.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic spot welding machine for battery electrodes, comprising a welding machine housing (1), characterized in that: The inner wall of the welding machine housing (1) is fixedly connected to a bearing plate (2), a fixing component is provided on the top of the bearing plate (2), a slide rail operating table (3) is fixedly connected to the outer wall of the bearing plate (2), and an absorption component is provided on the outer wall of the slide rail operating table (3). The fixing assembly includes two clamping plates (8), one of which is fixedly connected to the top of the support plate (2) at its bottom, and the other is attached to the top of the support plate (2) at its bottom. Each clamping plate (8) is slidably connected to a sliding plate (9), and each sliding plate (9) is fixedly connected to a clamping plate (7) at its top. Each clamping plate (8) is fixedly connected to a connecting plate (10) on one side. Each connecting plate (10) is slidably connected to multiple clamping posts (18) inside, and the clamping posts (18) engage with the inside of the sliding plate (9). A telescopic cylinder (6) is fixedly connected to the top of the support plate (2), and the output end of the telescopic cylinder (6) is fixedly connected to the outer wall of one side of the connecting plate (10). A pushing assembly is provided on the outer wall of the clamping posts (18).

2. The automatic spot welding machine for battery electrodes according to claim 1, characterized in that: The pushing assembly includes multiple transmission columns (17), each transmission column (17) engaging with the inner wall of the locking column (18), each connecting plate (10) having multiple connecting frames (14) fixedly connected to one side, each connecting frame (14) having a transmission plate (16) rotatably connected inside, each connecting frame (14) having a spring (15) on one side, each spring (15) having one end fixedly connected to the outer wall of the transmission plate (16), the other end of each spring (15) being fixedly connected to the outer wall of the connecting frame (14), and each transmission plate (16) having one side fixedly connected to the outer wall of the transmission column (17).

3. The automatic spot welding machine for battery electrodes according to claim 2, characterized in that: Each of the connecting plates (10) is fixedly connected to a connecting block (13) on both sides. Each of the connecting blocks (13) is slidably connected to a limit slider (11). Each of the limit sliders (11) on each side is fixedly connected to a pressing plate (12) on its outer wall. The pressing plate (12) is in contact with the transmission plate (16).

4. The automatic spot welding machine for battery electrodes according to claim 1, characterized in that: The absorption assembly includes a suction head (4), one side of which is fixedly connected to the outer wall of the slide rail operating table (3), and a conveying pipe (5) is fixedly connected to the top of the suction head (4), which extends through to the outside of the welding machine housing (1).

5. The automatic spot welding machine for battery electrodes according to claim 4, characterized in that: One end of the delivery pipe (5) is fixedly connected to a connecting shell (19), and one side of the connecting shell (19) is fixedly connected to the outer wall of the welding machine housing (1).

6. The automatic spot welding machine for battery electrodes according to claim 5, characterized in that: A suction fan (26) is fixedly connected to one side of the welding machine housing (1), and a connecting pipe (25) is fixedly connected to the input end of the suction fan (26). The top end of the connecting pipe (25) is fixedly connected to the bottom of the connecting shell (19).

7. An automatic spot welding machine for battery electrodes according to claim 6, characterized in that: A fixing ring (22) is fixedly connected to the top of the inner wall of the connecting shell (19), and a limiting ring (21) is rotatably connected to the inner wall of the fixing ring (22). A filter screen (20) is fixedly connected to the inner wall of the limiting ring (21).

8. An automatic spot welding machine for battery electrodes according to claim 7, characterized in that: The bottom of the inner wall of the connecting shell (19) is fixedly connected to a rotating frame (24), which is composed of a rotating wheel and a fixed frame. The top of the rotating frame is fixedly connected to a transmission column (23), and the top of the transmission column (23) is fixedly connected to the bottom of the filter screen (20).

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