Automatic battery capping device

Abstract

The utility model provides a battery automatic capping device, including frame, set up in frame be used for placing battery's placing seat, set up in the both sides of placing seat can hold the battery's clamping component, set up in frame with the battery capping end shape adaptation's pressing plate and set up in frame with the pressing plate opposite setting can drive battery to move to the pushing mechanism of pressing plate, clamping component and pushing mechanism vertical setting. The utility model discloses through clamping component to battery accurate positioning and firm clamping, then by pushing mechanism stably to push battery to complete with the pressing plate's compression, has realized battery capping process's stability, reliable and automation, has improved production efficiency and product consistency significantly, has reduced the risk of cell damage because of human or equipment instability factor, has good application prospect.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly equipment technology, and in particular to an automatic battery capping device. Background Technology

[0002] In the manufacturing process of lithium-ion batteries, cell packaging is one of the key steps to ensure battery safety, performance, and lifespan. Among these steps, the cell capping process is crucial. This process requires precisely and securely pressing the battery end cap onto the battery casing to form an effective seal. Currently, battery capping is mainly accomplished manually or with automated equipment. However, existing technologies still have many shortcomings.

[0003] Force control during the battery capping process is crucial. Uneven pressure not only affects the sealing quality but can also cause irreversible damage to the internal structure of the battery cell, such as causing bulges or dents, affecting subsequent processes, or even inducing insulation failure, leading to serious safety hazards. Some existing capping devices, due to their relatively simple drive and guide mechanism designs, cannot guarantee the absolute linearity of the thrust, and are prone to generating off-center loads or torques during the pressing process, thus applying uneven stress to the battery cell.

[0004] Meanwhile, with the rapid development of battery technology, battery sizes and models are becoming increasingly diverse, with significant differences between different manufacturers and even different models from the same manufacturer. However, many existing devices are either dedicated machines designed for specific models, lacking flexibility, or highly versatile but lacking precision, making it difficult to strike a balance between the two. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an automatic battery capping device to solve the problems of low positioning accuracy, difficulty in adapting to multiple models, and poor versatility in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides an automatic battery capping device, including a frame, a placement seat on the frame for placing batteries, clamping components on both sides of the placement seat for clamping batteries, a pressure plate on the frame adapted to the shape of the battery capping end, and a pushing mechanism on the frame opposite to the pressure plate for driving the battery to move towards the pressure plate. The clamping components and the pushing mechanism are arranged perpendicularly.

[0007] By adopting the above technical solution, the battery is precisely positioned and firmly clamped by the clamping component, and then the pushing mechanism steadily pushes the battery to complete the pressing with the pressure plate. This achieves a stable, reliable and automated battery pressing process, significantly improves production efficiency and product consistency, and reduces the risk of cell damage caused by human factors or equipment instability. It has good application prospects.

[0008] In one embodiment of this utility model, a receiving column is provided on the placement seat for sliding connection with the battery. Multiple receiving columns are arranged in parallel. The receiving columns are circular guide columns and are arranged along the movement direction of the pushing mechanism.

[0009] By adopting the above technical solution, it is ensured that the battery can slide smoothly and easily during forward movement, effectively avoiding vibration, jamming or slight rotation that may be caused by uneven friction, and directly improving the stability of the battery transportation process and the accuracy of final positioning.

[0010] In one embodiment of the present invention, the clamping assembly includes guide rails arranged parallel to both sides of the placement seat and extending along the direction of battery movement, sliders slidably connected to the two guide rails respectively, positioning seats respectively disposed on the sliders for abutting against the side wall of the battery, and positioning cylinders capable of pushing the battery to move towards the positioning seats, wherein the positioning cylinders are arranged perpendicular to the extension direction of the guide rails.

[0011] By adopting the above technical solution, the battery is pushed by a positioning cylinder, causing one side to press firmly against a fixed positioning seat. Using this positioning seat as a reference plane, the positional uncertainty of the battery in the width direction is eliminated. The guide rail and slider system ensures that the clamping force is applied strictly along the direction perpendicular to the battery's movement, avoiding any torsional or skewed torque on the battery during clamping. This is crucial for resisting the strong thrust applied by the subsequent pushing mechanism and ensuring the battery maintains a precise posture throughout the capping process.

[0012] In one embodiment of the present invention, the feeding mechanism includes a support seat disposed on the frame, a push block slidably connected to the support seat and capable of contacting and connecting with the battery, and a feeding rod disposed on the support seat to drive the push block to move toward the pressure plate. Guide rods slidably connected to the support seat are also provided on both sides of the push block.

[0013] By adopting the above technical solution, the precise sliding fit between the guide rod and the support base forms a rigid, anti-rotation guiding system that strictly constrains the movement of the pusher block to a single linear degree of freedom. This means that the driving force output from the pusher cylinder can be completely and without deviation transmitted to the battery, ensuring that the thrust vector acting on the battery always perfectly coincides with the predetermined capping axis.

[0014] In one embodiment of the present invention, a support frame for placing the pressure plate is also provided on the frame, so that the pressure plate is positioned relative to the push block, and the pressure plate is detachably installed on the support frame by fasteners.

[0015] By adopting the above technical solution, it is possible to easily replace the pressure plate suitable for different battery end cap contours, or adjust the clamping width to accommodate different sizes of battery cells, without having to make large-scale modifications to the entire equipment.

[0016] In one embodiment of the present invention, a limiting seat is also provided on the frame. There are two limiting seats, which are located at the ends of two guide rails respectively. A limiting rod that can abut against the connecting slider is also provided on the limiting seat. The limiting rod is elastically connected to the limiting seat along the extension direction of the guide rail.

[0017] By adopting the above technical solutions, a protective design is implemented to enhance the durability and operational stability of the equipment. The flexible limit lever provides cushioning when the slider of the clamping assembly reaches the end of its stroke, preventing rigid impacts. This not only effectively reduces wear and fatigue of mechanical parts, extending equipment lifespan, but also significantly reduces vibration and noise during equipment operation, helping to maintain a stable operating environment throughout the production line.

[0018] In one embodiment of this utility model, the positioning seat is provided with a connecting rod that is slidably connected to the slider. The connecting rod is arranged perpendicular to the extension direction of the guide rail. The slider is provided with an adjusting nut that is threadedly engaged with the connecting rod and can drive the positioning seat. The positioning seat is also provided with a guide rod that is slidably connected to the slider.

[0019] By adopting the above technical solution, the clamping width can be finely adjusted. By rotating the adjusting nut, the operator can finely adjust the position of the positioning seat to perfectly adapt to the slight size differences that may exist between different batches of batteries, or to quickly complete the replacement of different models of batteries.

[0020] As described above, the automatic battery capping device of this utility model has the following beneficial effects: the battery is accurately positioned and firmly clamped by the clamping component, and then the pushing mechanism steadily pushes the battery to complete the pressing with the pressure plate, realizing the stability, reliability and automation of the battery capping process, significantly improving production efficiency and product consistency, reducing the risk of cell damage caused by human or equipment instability factors, and has good application prospects. Attached Figure Description

[0021] Figure 1 The diagram shows the overall structure disclosed in the embodiments of this utility model.

[0022] Figure 2 The diagram shown is a structural schematic of the feeding mechanism disclosed in an embodiment of this utility model.

[0023] Component designation explanation

[0024] 1. Frame; 2. Placement base; 3. Clamping assembly; 4. Pressure plate; 5. Pushing mechanism; 6. Battery; 7. Support column; 8. Support frame;

[0025] 20. Guide rail; 21. Slider; 22. Positioning seat; 23. Positioning cylinder; 24. Limit seat; 25. Limit rod; 26. Connecting rod; 27. Adjusting nut; 28. Guide rod;

[0026] 30. Support column; 31. Push block; 32. Push cylinder; 33. Guide rod. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0028] Please see Figures 1 to 2 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0029] like Figure 1 As shown, this utility model provides an automatic battery capping device, including a frame 1, a placement seat 2 disposed on the frame 1 for placing a battery 6, a clamping component 3 disposed on both sides of the placement seat 2 for clamping the battery 6, a pressure plate 4 disposed on the frame 1 and adapted to the shape of the capping end of the battery 6, and a pushing mechanism 5 disposed on the frame 1 and opposite to the pressure plate 4 for driving the battery 6 to move toward the pressure plate 4. The clamping component 3 and the pushing mechanism 5 are arranged perpendicularly.

[0030] like Figure 2 As shown, the surface of the placement base 2 is not a plane, but is provided with multiple parallel support columns 7. In this embodiment, the support columns 7 are set as smooth circular guide columns, and their axial direction is consistent with the direction in which the battery 6 is pushed. The battery 6 is placed on these support columns 7 and supported by line contact, so that it can slide forward smoothly with minimal friction when pushed. In this embodiment, there are two support columns 7, which are respectively set on both sides of the placement base 2.

[0031] The clamping assembly 3 is disposed on both sides of the placement base 2 for precise positioning and fixing of the battery 6 before pressing the cover. The clamping assembly 3 includes two guide rails 20 parallel to the movement direction of the battery 6. A slider 21 is slidably connected on each guide rail 20. A positioning seat 22 is fixedly installed on one side of the slider 21, which serves as the reference surface for clamping. A positioning cylinder 23 is connected to the slider 21 on the other side. The piston rod of the cylinder extends perpendicularly to the guide rail 20, and the end of the piston rod is provided with a connecting block that can abut against the side wall of the battery 6.

[0032] When the battery 6 is placed on the receiving column 7, the positioning cylinder 23 is activated, which drives the connecting block to move, so that the connecting block abuts against the side wall of the battery 6 and pushes the battery 6 toward the fixed positioning seat 22 on the opposite side, until the battery 6 is firmly clamped by the positioning seats 22 on both sides, thereby completing the precise positioning of the battery 6 in the width direction.

[0033] The feeding mechanism 5 and the clamping assembly 3 are arranged vertically along the horizontal plane. The feeding mechanism 5 includes a support base set on the frame 1, a push block 31 that is slidably connected to the support base and can abut against the battery 6, and a feeding cylinder 32 set on the support base to drive the push block 31 to move towards the pressure plate 4. In order to ensure the absolute linearity of the movement of the push block 31, guide rods 33 are also connected to both sides of the push block 31. The guide rods 33 are precisely slidably engaged with the support base.

[0034] When the pusher cylinder 32 is working, it drives the pusher block 31 and the guide rod 33 to move forward together, ensuring that the thrust is applied straight to the battery 6 without any deflection.

[0035] In front of the feeding mechanism 5, opposite to the pusher block 31, a support frame 8 is provided on the frame 1. A pressure plate 4 is mounted on the support frame 8. The shape and size of the pressure plate 4 are adapted to the end cap of the battery 6 to be pressed. The pressure plate 4 is detachably fixed to the support frame 8 by bolts or other fasteners, which facilitates replacement according to different models of batteries 6.

[0036] The frame 1 is also provided with a limit seat 24. There are two limit seats 24, which are located at the ends of the two guide rails 20 respectively. The limit seat 24 is also provided with a limit rod 25 that can abut against the connecting slider 21. The limit rod 25 is elastically connected to the limit seat 24 along the extension direction of the guide rail 20. The limit rod 25 is covered with a spring so that the limit rod 25 is elastically connected to the limit seat 24.

[0037] The positioning seat 22 is provided with a connecting rod 26 that slides and connects to the slider 21. The connecting rod 26 is set in the direction of extending perpendicular to the guide rail 20. The slider 21 is provided with an adjusting nut 27 that is threadedly engaged with the connecting rod 26 and can drive the positioning seat 22. The positioning seat 22 is also provided with a guide rod 28 that slides and connects to the slider 21.

[0038] The workflow of the entire device is as follows: First, a battery 6 to be processed is placed on the receiving column 7 of the placement seat 2. Next, the positioning cylinder 23 in the clamping assembly 3 is activated, pushing the positioning seat 22 on the movable side, pushing the battery 6 towards the positioning seat 22 on the fixed side, until the battery 6 is firmly clamped by both sides. At this time, the battery 6 has completed precise lateral positioning. Then, the pushing cylinder 32 in the pushing mechanism 5 is activated, driving the pushing block 31 to move forward at a stable speed and with pure linear motion under the guidance of the guide rod 33. The pushing block 31 contacts the rear end face of the battery 6, pushing the battery 6 smoothly along the receiving column 7 towards the pressure plate 4. The front end of the battery 6 (with the end cap pre-placed) contacts the pressure plate 4, and the pushing cylinder 32 continues to apply force, pressing the end cap evenly into the battery 6 shell through the battery body, completing the capping and sealing process; finally, the pushing cylinder 32 and the positioning cylinder 23 are reset in sequence, releasing the capped battery 6, and the equipment is ready for the next work cycle.

[0039] In summary, this invention effectively solves the core problems of inaccurate positioning, uneven force distribution, and poor reliability in the battery capping process of existing technologies by combining a precision clamping and positioning system with a highly stable linear pushing system. The device has a reasonable structural design and stable operation, and can significantly improve the automation level, product quality, and production efficiency of battery production. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An automatic battery capping device, characterized in that, The device includes a frame, a battery placement seat mounted on the frame, clamping components mounted on both sides of the placement seat to hold the battery, a pressure plate mounted on the frame that is adapted to the shape of the battery cap end, and a pushing mechanism mounted on the frame and opposite to the pressure plate to drive the battery to move toward the pressure plate. The clamping components and the pushing mechanism are arranged perpendicularly.

2. The automatic battery capping device according to claim 1, characterized in that: The placement seat is provided with a receiving column that is slidably connected to the battery. Multiple receiving columns are arranged in parallel. The receiving columns are circular guide columns and are arranged along the movement direction of the pushing mechanism.

3. The automatic battery capping device according to claim 1, characterized in that: The clamping assembly includes guide rails arranged parallel to both sides of the placement seat and extending along the direction of battery movement, sliders slidably connected to the two guide rails, positioning seats respectively disposed on the sliders for abutting against the side wall of the battery, and positioning cylinders capable of pushing the battery toward the positioning seats. The positioning cylinders are arranged perpendicular to the extension direction of the guide rails.

4. The automatic battery capping device according to claim 1, characterized in that: The feeding mechanism includes a support base mounted on the frame, a pusher block slidably connected to the support base and capable of contacting the battery, and a feeding cylinder mounted on the support base that drives the pusher block to move toward the pressure plate. Guide rods slidably connected to the support base are also provided on both sides of the pusher block.

5. The automatic battery capping device according to claim 1, characterized in that: The frame is also provided with a support frame for placing the pressure plate, so that the pressure plate is set in relation to the push block. The pressure plate is detachably installed on the support frame by fasteners.

6. The automatic battery capping device according to claim 3, characterized in that: The frame is also provided with limit seats. There are two limit seats, which are located at the ends of two guide rails respectively. Each limit seat is also provided with a limit rod that can abut against the connecting slider. The limit rod is elastically connected to the limit seat along the extension direction of the guide rail.

7. The automatic battery capping device according to claim 3, characterized in that: The positioning seat is provided with a connecting rod that slides and is connected to the slider. The connecting rod is arranged perpendicular to the extension direction of the guide rail. The slider is provided with an adjusting nut that is threadedly engaged with the connecting rod and can drive the positioning seat. The positioning seat is also provided with a guide rod that slides and is connected to the slider.

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