Cylindrical battery sealing device
By combining the load-bearing, fixing, lifting, rotating and welding units of the cylindrical battery sealing device, the problems of inaccurate positioning and low welding efficiency of the battery sealing device are solved, and high-efficiency and low-cost precision welding is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KAIBO ENERGY TECH (CHENGDU) CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-21
AI Technical Summary
Existing battery sealing devices suffer from inaccurate positioning and insufficient clamping of the cover plate and shell, resulting in poor and weak welds, low welding efficiency, and high costs.
The cylindrical battery sealing device, composed of a bearing unit, a fixing unit, a lifting and rotating unit, and a welding unit, achieves precise welding through positioning by the bearing platform, clamping and pressing by the fixing unit, and rotating welding driven by the lifting and rotating unit, combined with spot welding and continuous welding modules.
This improved welding accuracy and efficiency, reduced costs, and ensured a high yield rate.
Smart Images
Figure CN224143778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery processing technology, and in particular to a cylindrical battery sealing device. Background Technology
[0002] In existing technologies, after the battery cell is installed into the casing, the cover plate and the casing need to be welded together. However, existing welding equipment usually has the following problems: inaccurate positioning or insufficient clamping of the cover plate and casing can easily lead to incomplete or weak welds, resulting in defective products, affecting battery performance, and causing battery quality problems; welding the cover plate and casing together in one go can easily lead to weld misalignment; or welding can be performed using multiple welding machines at different stations, resulting in low work efficiency and high welding costs.
[0003] Therefore, there is an urgent need for a cylindrical battery sealing device to solve the above problems. Utility Model Content
[0004] Based on the above, the purpose of this utility model is to provide a cylindrical battery sealing device that has good welding effect, high yield, higher welding efficiency, and lower cost.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A cylindrical battery sealing device, comprising:
[0007] The supporting unit is equipped with a supporting platform;
[0008] A fixing unit is used to clamp the sealing component and press the sealing component onto the body to be sealed with a preset pressure.
[0009] The lifting and rotating unit can move vertically to contact the body to be sealed and drive the body to be sealed and the sealing component to rotate.
[0010] The welding unit is equipped with spot welding modules and continuous welding modules;
[0011] The driving unit is connected to the fixed unit.
[0012] The beneficial effects of this utility model are as follows:
[0013] This invention utilizes a support unit with a support platform to support and position the body to be sealed. A fixing unit positions and clamps the sealing component, moving towards the support unit to press it against the body with a preset pressure, improving the accuracy and reliability of subsequent welding and effectively avoiding problems such as misaligned welding, incomplete welding, and weak welding. The fixing unit is driven by a drive unit, ensuring reliable operation. Simultaneously, the welding unit includes a spot welding module for spot welding between the sealing component and the body to be sealed. Spot welding enables positioning and pre-connection between the sealing component and the body, improving the accuracy of subsequent continuous welding. The cylindrical battery sealing device also incorporates a lifting and rotating unit that engages with the body to be sealed vertically and drives both the body and the sealing component to rotate. During the rotation of the body to be sealed, the welding unit also includes a continuous welding module for continuous welding between the battery module and the sealing component. This allows the same welding unit to perform both spot welding and continuous circumferential welding of the sealing component and the body to be sealed, improving welding efficiency and reducing costs. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the cylindrical battery sealing device provided in a specific embodiment of this utility model;
[0016] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.
[0017] In the picture:
[0018] 1. The body to be sealed;
[0019] 100. Bearing unit; 110. Bearing platform; 120. Cup holder;
[0020] 200. Fixed unit;
[0021] 300. Lifting and rotating unit; 310. Lifting drive module; 320. Rotation drive module;
[0022] 400. Welding Unit;
[0023] 500. Drive unit; 510. Drive component; 511. Drive track; 520. Rotating component; 530. Mating component;
[0024] 600. First clamping unit. Detailed Implementation
[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.
[0027] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0030] like Figure 1 and Figure 2As shown, this embodiment provides a cylindrical battery sealing device, which includes a support unit 100, a fixing unit 200, a lifting and rotating unit 300, a welding unit 400, and a driving unit 500. The support unit 100 is provided with a support platform; the fixing unit 200 is used to clamp the sealing component and press the sealing component onto the body 1 to be sealed with a preset pressure; the lifting and rotating unit 300 can move vertically to abut against the body 1 to be sealed and drive the body 1 to be sealed and the sealing component to rotate; the welding unit 400 is provided with a spot welding module and a continuous welding module; the driving unit 500 is drivenly connected to the fixing unit 200.
[0031] By setting up a support unit 100 with a support platform, the sealing body 1 is supported and positioned. By setting up a fixing unit 200, the sealing component is positioned and clamped, and moves along the direction close to the support unit 100 to press the sealing component onto the sealing body 1 with a preset pressure, thereby improving the accuracy and reliability of subsequent welding and effectively avoiding problems such as misaligned welding, incomplete welding, and weak welding. Moreover, the fixing unit 200 is driven by the drive unit 500, making the drive more reliable. At the same time, the welding unit 400 is equipped with a spot welding module to realize spot welding between the sealing component and the sealing body 1. Spot welding can realize the positioning and pre-connection between the sealing component and the sealing body 1, which is beneficial to improving the accuracy of subsequent continuous welding. The cylindrical battery sealing device is equipped with a lifting and rotating unit 300, which is used to cooperate with the body 1 to be sealed in the vertical direction and drive the body 1 to be sealed and the sealing component to rotate. When the body 1 to be sealed rotates, the welding unit 400 is also equipped with a continuous welding module to realize continuous welding between the battery module and the sealing component. This enables the same welding unit 400 to perform both spot welding and continuous circumferential welding of the sealing component and the body 1 to be sealed, thereby improving welding efficiency and reducing costs.
[0032] Specifically, the support unit 100 includes a support platform 110 and a cup 120 disposed on the support platform of the support platform 110. The body to be sealed 1 is disposed within the cup 120. By setting the support platform 110 and the cup 120 to support the body to be sealed 1, the reliability of the support for the body to be sealed 1 is improved, ensuring reliable contact between the two when the sealing component is pressed against the body to be sealed 1 with a preset pressure. It is understood that both the support platform 110 and the cup 120 are provided with clearance holes for the lifting and rotating unit 300 to pass through, allowing the lifting and rotating unit 300 to pass through for driving the rotation of the body to be sealed 1.
[0033] Furthermore, the cylindrical battery sealing device also includes a first clamping unit 600, used to clamp the body 1 to be sealed and move it towards and away from the support unit 100. When the first clamping unit 600 clamps the unwelded body 1 to be sealed and moves towards the support unit 100, it is used to load the body 1 to be sealed. When the first clamping unit 600 clamps the welded body 1 to be sealed and moves away from the support unit 100, it is used to separate the body 1 to be sealed from the cup 120, so that the welded body 1 to be sealed can enter the subsequent processing device for further processing. The drive unit 500 is driven by the first clamping unit 600, used to realize the clamping of the body 1 to be sealed by the first clamping unit 600 and the vertical movement of the first clamping unit 600. Driven by the same drive unit 500, the structure is simpler and the action coordination is better. At the same time, the cooperation with the fixed unit 200 is higher, thus ensuring a smoother sealing operation.
[0034] Preferably, the supporting unit 100 is configured to move towards and away from the first clamping unit 600, which helps improve the separation efficiency between the body 1 to be sealed and the cup 120, while reducing the vertical movement distance of a single unit and reducing the vertical dimensions of the device. It is worth noting that both the supporting unit 100 and the first clamping unit 600 are driven by the driving unit 500, which improves the coordination of the movements between the supporting unit 100, the first clamping unit 600, and the fixing unit 200, facilitating the welding operation of the body 1 to be sealed and ensuring the accuracy of the separation operation between the body 1 to be sealed and the cup 120.
[0035] In this embodiment, the inner wall of the cup 120 is provided with a first rolling element. The axis of the first rolling element is parallel to the axis of the cup 120, and it can roll and cooperate with the outer wall of the body to be sealed when the lifting and rotating unit 300 drives the body to be sealed 1 to rotate. While positioning the body to be sealed 1, it reduces the wear of the cup 120 on the outer wall of the body to be sealed 1, and also makes the rotation of the body to be sealed 1 smoother.
[0036] For example, the lifting and rotating unit 300 includes a lifting drive module 310 and a rotating drive module 320 disposed at the drive end of the lifting drive module 310. When the body 1 to be sealed needs to rotate, the lifting drive module 310 drives the rotating drive module 320 to move upward in the vertical direction and abut against the bottom of the body 1 to be sealed. Then, in accordance with the welding position requirements of the welding unit 400, the drive end of the rotating drive module 320 can drive the body 1 to be sealed to rotate.
[0037] Optionally, the fixing unit 200 is provided with a fixing block and a clamping module rotatably mounted on the fixing block. The driving unit 500 can drive the fixing block to move vertically, and the clamping module can be driven by a separate driving component 510. By rotatably mounting the clamping module on the fixing block, interference can be avoided when the rotation driving module 320 rotates. It is understood that the clamping position of the clamping module on the sealing component does not interfere with the welding of the welding device.
[0038] In other embodiments, the support unit 100 does not have a support platform 110 and a cup holder 120. Instead, the support unit 100 has a second clamping unit for directly clamping the body 1 to be sealed. Specifically, the second clamping unit has two jaws that can move closer or further apart, clamping the body 1 to be sealed. That is, when the second clamping unit clamps the body 1 to be sealed, it needs to overcome not only the weight of the body 1 to be sealed, but also the preset pressure of the sealing component pressing against the body 1 to be sealed during welding. Furthermore, to accommodate the rotation of the body 1 to be sealed, a second rolling element is provided on the side where the two jaws are close to each other. The axis of the second rolling element is parallel to the axis of the body 1 to be sealed, and it can roll and cooperate with the outer wall of the body 1 to be sealed when the lifting and rotating unit 300 drives the body 1 to be sealed to rotate, so that it does not need to be disengaged from the clamping of the body 1 to be sealed, nor does it affect the rotational welding of the body 1 to be sealed.
[0039] Optionally, the drive unit 500 is connected to the second clamping unit, meaning the drive unit 500 only needs to drive the second clamping unit to clamp the body 1 to be sealed, without needing to drive the second clamping unit to move vertically. In this case, to make full use of the drive unit 500, the rotation drive module 320 can also be driven by the drive unit 500. This not only eliminates the need for the lifting drive module 310, simplifying the structure, but also further improves the coordination of the actions between the functional units.
[0040] In this embodiment, the driving unit 500 includes a driving component 510 and a rotating component 520. The driving component 510 is provided with a driving track 511, and the fixing unit 200 is disposed on the rotating component 520. It can be understood that the driving component 510 is circular, and the driving track 511 extends circumferentially along the outer wall of the circular ring and closes off. Furthermore, the driving track 511 has a height variation along the vertical direction according to driving requirements. Further, the supporting unit 100 and the first clamping unit 600 are also driven by the driving unit 500. Therefore, the supporting unit 100 and the first clamping unit 600 are also disposed on the rotating component 520, meaning that three driving tracks 511 are provided to achieve the driving of the supporting unit 100, the first clamping unit 600, and the fixing unit 200. Optionally, the supporting unit 100, the first clamping unit 600, and the fixing unit 200 are each provided with a mating part 530 that can cooperate with the drive rail 511. The mating part 530 can be placed inside the drive rail 511 and roll in cooperation with the drive rail 511, making the conversion of the movement direction smoother. When the rotating part 520 rotates relative to the driving part 510, the mating parts 530 are placed in the drive rail 511 one by one, so that the supporting unit 100, the first clamping unit 600, and the fixing unit 200 can convert the rotational motion of the rotating part 520 into their own required motion according to the vertical height change of the drive rail 511, thereby sequentially completing the clamping and pressing of the sealing part, the clamping and vertical movement of the body 1 to be sealed, welding, and the separation operation of the body 1 to be sealed and the supporting unit 100.
[0041] Furthermore, a set of one-to-one bearing units 100, first clamping units 600, fixing units 200, and lifting and rotating units 300 constitute a sealing sub-device. Multiple sealing sub-devices are arranged axially on the rotating component 520, which can improve the sealing efficiency of cylindrical batteries in one direction, and also help to improve the compactness of the cylindrical battery sealing device structure.
[0042] The cylindrical battery sealing device operates as follows: The first clamping unit 600 clamps the first body 1 to be sealed and places it on the support platform 110; the fixing unit 200 clamps the sealing component and presses it onto the body 1 to be sealed with a preset pressure; the lifting and rotating unit 300 rises to abut against the body 1 to be sealed and drives the body 1 to be sealed to rotate, during which the welding unit 400 sequentially performs spot welding at multiple circumferential positions and continuous welding in the circumferential direction; next, the lifting and rotating unit 300 descends, the first clamping unit 600 re-clamps the body 1 to be sealed, the fixing unit 200 and the first clamping unit 600 rise, and the support unit 100 descends, realizing the separation of the body 1 to be sealed and the support platform 110.
[0043] Specifically, the cylindrical battery sealing device also includes a first supply unit for supplying the body 1 to be sealed to the carrying unit 100. Exemplarily, the first supply unit is a disc structure, rotatable, with multiple bodies 1 to be sealed arranged circumferentially. After supplying one body 1, the disc structure can be rotated to position the next body 1 facing the carrying unit 100, thereby increasing supply efficiency. And / or, the cylindrical battery sealing device also includes a second supply unit for supplying sealing components to the fixing unit 200. Specifically, the structure of the second supply unit can be referenced to that of the first supply unit, and will not be described further here.
[0044] It is understood that the first supply unit, the second supply unit, and the welding unit 400 are installed relative to the preset positions of the driving component 510 to ensure that the corresponding units of the sealing sub-device, rotated to the preset positions, can perform preset actions and thus achieve preset functions. For example, the body 1 to be sealed can be a cell module of a cylindrical battery, and the sealing component can be the cover plate of the cylindrical battery. In addition, the cylindrical battery sealing device is also equipped with a control unit. The driving components and detection components of each functional unit are all communicatively connected to the control unit. The control unit can control the actions of the driving components and detection components of each functional unit according to a preset control program, thereby achieving automated casing operation.
[0045] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A cylindrical battery closure device, characterized by include: The supporting unit (100) is equipped with a supporting platform; A fixing unit (200) is used to clamp the sealing component and press the sealing component onto the body (1) to be sealed with a preset pressure; The lifting and rotating unit (300) can move vertically to abut against the body to be sealed (1) and drive the body to be sealed (1) and the sealing component to rotate; The welding unit (400) is equipped with a spot welding module and a continuous welding module; The driving unit (500) is drivingly connected to the fixed unit (200).
2. The cylindrical battery closure device of claim 1, wherein, The supporting unit (100) includes a supporting platform (110) and a cup (120) disposed on the supporting platform of the supporting platform (110). The body (1) to be sealed is disposed inside the cup (120). Both the supporting platform (110) and the cup (120) are provided with clearance holes for the lifting and rotating unit (300) to pass through.
3. The cylindrical battery closure of claim 2, wherein, The cylindrical battery sealing device further includes a first clamping unit (600) for clamping the body (1) to be sealed and moving it in a direction close to and away from the support unit (100) to place the body (1) to be sealed in the support unit (100) and separate it from the support unit (100). The driving unit (500) is drivenly connected to the first clamping unit (600).
4. The cylindrical battery closure of claim 3, wherein, The support unit (100) can move in directions toward and away from the first clamping unit (600), and the drive unit (500) is drivenly connected to the support unit (100).
5. The cylindrical battery closure of claim 2, wherein, The inner wall of the cup (120) is provided with a first rolling element, the axis of which is parallel to the axis of the cup (120) and can roll in cooperation with the outer wall of the body (1) to be sealed.
6. The cylindrical battery closure of claim 1, wherein, The bearing unit (100) is provided with a second clamping unit for clamping the body (1) to be sealed. The second clamping unit is provided with two jaws that can move closer or further apart. A second rolling element is provided on the side where the two jaws are close to each other. The axis of the second rolling element is parallel to the axis of the body (1) to be sealed and can roll in cooperation with the outer wall of the body (1) to be sealed.
7. The cylindrical battery closure of claim 6, wherein, The driving unit (500) is drivingly connected to the second clamping unit.
8. The cylindrical battery closure of claim 1, wherein, The lifting and rotating unit (300) includes a lifting drive module (310) and a rotating drive module (320) disposed at the drive end of the lifting drive module (310). The lifting drive module (310) is used to drive the rotating drive module (320) to move in the vertical direction. The drive end of the rotating drive module (320) can abut against the body to be sealed (1) to drive the body to be sealed (1) to rotate.
9. The cylindrical battery closure of any one of claims 1-8, wherein, The driving unit (500) includes a driving component (510) and a rotating component (520). The driving component (510) is provided with a driving track (511). The fixing unit (200) is disposed on the rotating component (520). The rotating component (520) can rotate relative to the driving component (510) so that the driving track (511) cooperates with the fixing unit (200) for driving.
10. The cylindrical battery closure of any one of claims 1-8, wherein, The cylindrical battery sealing device is further provided with a first feeding unit for feeding the to-be-sealed body (1) to the bearing unit (100); and / or the cylindrical battery sealing device is further provided with a second feeding unit for feeding the sealing piece to the fixing unit (200).