A lithium battery assembly tooling fixture

Abstract

The utility model provides a kind of lithium battery assembly tool fixture, it is related to battery assembly field, including first clamping block, multiple first clamping block is enclosed and is formed for accommodating the space of lithium battery;Second clamping block, multiple second clamping block is detachably installed in the top of multiple first clamping block, to increase the clamping height;Wherein, the top of first clamping block is equipped with the second recess that extends along its length direction, the bottom of second clamping block is equipped with the slider that is matched with the second recess, the second clamping block is slidably matched with the second recess of the top of first clamping block by the slider of its bottom, realizes installation and position adjustment.By additionally providing detachable second clamping block on the basis of first clamping block, the modular extension of fixture overall height is realized, facing different height lithium battery, operator only needs to increase or decrease second clamping block to quickly adjust clamping height, ensure the whole battery sidewall full effective support, prevent inclination, significantly improve assembly accuracy and product consistency.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly, and in particular to a lithium battery assembly tooling fixture. Background Technology

[0002] In the lithium battery production and assembly process, tooling fixtures are the core equipment for achieving precise battery positioning and ensuring assembly consistency. The mainstream lithium battery assembly tooling fixtures in the industry are usually composed of four side plates. These four side plates enclose an assembly space for accommodating and fixing lithium batteries. In actual assembly operations, multiple lithium batteries to be assembled are first neatly placed into the assembly space. Then, the four side plates are pushed towards the battery, so that the inner wall of the side plate is in close contact with the outer periphery of the battery, thereby achieving the initial positioning of the battery. To fix the position of the side plates and lock the size of the assembly space, existing fixtures generally adopt a locking structure of screw and wing nut. The screw passes through a pre-set groove in the side plate. When the side plate moves to the target position, the wing nut is threaded to the screw and tightened, so that the end face of the nut is in close contact with the surface of the side plate. The friction force restricts the movement of the screw in the groove, thereby completing the fixing of the assembly space. As the application scenarios of lithium batteries continue to expand, the height of different models and specifications of lithium batteries varies significantly. When the height of the assembled lithium battery is higher than the height of the side plate, the excess part cannot be limited by the side plate, which can easily cause the battery to tilt or shift during assembly, thereby affecting the accuracy of subsequent welding, packaging and other processes. At the same time, in order to adapt to batteries of different heights, some companies need to keep multiple sets of tooling fixtures of different height specifications. This not only increases the equipment procurement cost, but also requires frequent replacement of fixtures when switching product models, which prolongs the production preparation time and reduces the overall production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a lithium battery assembly tooling fixture to solve the technical problems of existing tooling fixtures having a fixed height, which cannot adapt to the assembly needs of lithium batteries of different heights, resulting in low assembly accuracy, high equipment cost and low production efficiency.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: A lithium battery assembly fixture includes a first clamping block, and a plurality of first clamping blocks are arranged to form a space for accommodating lithium batteries. Second clamping blocks, multiple second clamping blocks are detachably mounted on top of the multiple first clamping blocks to increase the clamping height; The first clamping block has a second groove extending along its length at its top, and the second clamping block has a slider at its bottom that matches the second groove. The second clamping block slides with the second groove at the top of the first clamping block through the slider at its bottom, thereby achieving installation and position adjustment.

[0005] Preferably, the plurality of the first clamping blocks are interconnected and locked in position by a first locking mechanism; The first locking mechanism includes a threaded rod disposed on a first clamping block, a first through groove disposed on an adjacent first clamping block for the threaded rod to pass through, and a fastener that is threadedly engaged with the threaded rod to lock the first clamping block.

[0006] Preferably, the fastener is a wing nut.

[0007] Preferably, the cross-section of the second groove is a T-shaped groove, a dovetail groove, or a teardrop-shaped groove.

[0008] Preferably, the multiple second clamping blocks are interconnected and locked in position by a second locking mechanism to form an upper locking frame.

[0009] Preferably, the second locking mechanism includes a threaded hole on the second clamping block and a second through groove on an adjacent second clamping block for a bolt to pass through, wherein the bolt passes through the second through groove and is threadedly connected to the threaded hole.

[0010] Preferably, at least one of the second clamping blocks is capable of sliding independently along the second groove to form a notch in the upper space enclosed by the plurality of second clamping blocks for avoiding the battery protrusion structure.

[0011] Preferably, the notch is formed by sliding at least one second clamping block to its end abutting against the side of an adjacent second clamping block.

[0012] Preferably, the top of the second clamping block is provided with an upper first groove that has the same structure as the second groove on the top of the first clamping block.

[0013] Preferably, it also includes at least one third clamping block that is completely identical in structure to the second clamping block, the third clamping block being mounted on top of the second clamping block to further increase the clamping height.

[0014] The beneficial effects of this utility model are: 1. By adding a detachable second clamping block on top of the basic first clamping block, the overall height of the clamp is modularly expanded. For lithium batteries of different heights, operators only need to add or remove the second clamping block to quickly adjust the clamping height, ensuring effective support for the entire side wall of the battery, preventing tilting, and significantly improving assembly accuracy and product consistency.

[0015] 2. The second clamping block slides into the second groove on the first clamping block via a slider, allowing the second clamping block to not only be installed but also to be finely positioned on the first clamping block. By moving part of the second clamping block, a notch can be easily formed on the upper part of the fixture to accommodate irregularly shaped battery modules with external protrusions such as terminals and BMS boards, greatly enhancing the applicability of the fixture.

[0016] 3. The top of the second clamping block can be further provided with a groove identical to the bottom sliding groove structure, supporting multi-layer stacking and reserving expansion space for future higher-specification batteries. At the same time, the second clamping blocks can be independently locked together by bolts or other means to form a stable upper frame, ensuring the overall rigidity and stability of the clamp after the height is increased, and it can work reliably even under tilt or vibration conditions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a lithium battery assembly tooling fixture. Figure 2 This is a schematic diagram of the bottom clamping part; Figure 3 A schematic diagram of the structure for increasing the height of the clamping part; Figure 4 for Figure 1 The diagram shows the clamp used to hold an irregularly shaped lithium battery. Reference numerals in the attached drawings: 1. First clamping block; 2. First through groove; 3. Threaded rod; 4. Wing nut; 5. Second clamping block; 6. Second through groove; 7. First groove; 8. Bolt; 9. Second groove; 10. Slider. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0020] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0021] Example 1: In this example, a lithium battery assembly fixture is proposed. The present invention provides a lithium battery assembly fixture, the basic structure of which is composed of four first clamping blocks 1. The ends of the four first clamping blocks 1 abut against the sides in sequence to form an adjustable rectangular base, the interior of which forms an assembly space for accommodating lithium batteries.

[0022] To achieve adjustment and locking of the base size, each first clamping block 1 has a first through groove 2 extending along its length on its side. One end of each first clamping block 1 is fixedly connected to a threaded rod 3. During assembly, the threaded rod 3 of one first clamping block 1 passes through the first through groove 2 of the adjacent first clamping block 1 and extends outward. The outwardly extended part is fitted with and tightened with a wing nut 4. When it is necessary to adjust the size of the clamp to accommodate battery packs of different widths or lengths, the four wing nuts 4 can be loosened. At this time, each first clamping block 1 can slide along the threaded rod 3 of the adjacent first clamping block 1 within the range of the first through groove 2. After adjusting to the appropriate size, the wing nuts 4 are tightened one by one to lock the entire base.

[0023] The core innovation of this utility model lies in its high scalability. Specifically, each first clamping block 1 has a second groove 9 that runs through its length on its top. As a preferred embodiment, the cross-section of the second groove 9 is teardrop-shaped. Correspondingly, this embodiment also includes four second clamping blocks 5. The bottom of each second clamping block 5 is integrally formed or fixedly connected to a slider 10. The cross-sectional shape of the slider 10 is perfectly matched with the second groove 9. During installation, the slider 10 of the second clamping block 5 is slid into the end opening of the second groove 9, and the second clamping block 5 can be installed on the top of the first clamping block 1. In this way, by adding the second clamping blocks 5, the overall clamping height of the clamp is increased, which can effectively limit the lithium battery that is higher than the first clamping block 1.

[0024] Example 2: Based on Example 1, to further enhance the overall stability of the heightened fixture, this example optimizes the structure of the second clamping block 5. Please refer to... Figure 1 and Figure 3 Each second clamping block 5 also has a second through groove 6 on its side, and a corresponding threaded hole at its end. After the four second clamping blocks 5 are installed in place, two adjacent second clamping blocks 5 can be connected by bolts 8. Specifically, the bolt 8 passes through the second through groove 6 of one second clamping block 5 and is screwed into the threaded hole at the end of the adjacent second clamping block 5.

[0025] In this way, the four second clamping blocks 5 also form an independent, lockable upper frame. This makes the entire tooling fixture form a "first locking layer" composed of the first clamping block 1 and a "second locking layer" composed of the second clamping blocks 5. The two layers work together to greatly enhance the overall rigidity and deformation resistance of the fixture, making it especially suitable for working conditions that require tilting operation or vibration in automated production line handling.

[0026] Example 3: This example demonstrates the present invention's ability to handle irregularly shaped batteries. Some battery modules may have protruding terminals, BMS circuit boards, or other structural components on the side or top.

[0027] Please see Figure 4 This problem can be easily solved by utilizing the fact that the second clamping block 5 can slide on the first clamping block 1. In specific operation, first loosen the bolt 8 used to lock the second clamping blocks 5, and then slide the second clamping block (or both) facing the battery protrusion along the second groove 9 below it a certain distance to make it offset. After it moves into place, use the appropriate bolt 8 to relock it with the adjacent second clamping block 5 (or in some cases, if the sliding distance is small and the stability requirement is not high, it can be temporarily not locked).

[0028] like Figure 4 As shown, by sliding two opposing second clamping blocks 5 inwards, the upper space enclosed by the four second clamping blocks 5 forms two symmetrical notches. The ends of the slid-down second clamping blocks 5 abut against the sides of adjacent second clamping blocks 5, forming a T-shaped docking structure. The notches formed in this way can perfectly accommodate the protruding parts of the lithium battery, achieving perfect compatibility with irregularly shaped batteries and demonstrating extremely high design flexibility.

[0029] Example 4: To accommodate potentially higher-specification batteries, this invention also has the capability for further expansion. In this example, a first groove 7 is provided on the top of each second clamping block 5. The structure (such as cross-sectional shape and size) of the first groove 7 is exactly the same as the second groove 9 on the top of the first clamping block 1.

[0030] This means that another layer of clamping blocks (which could be another set of second clamping blocks 5 or a specially designed third layer of clamping blocks) can be installed on top of the already installed second clamping block 5 in the same way. Through this stacking method, the height of the clamp can be extended indefinitely, providing excellent upward compatibility and scalability.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A lithium battery assembly fixture, characterized in that, Includes a first clamping block, and multiple first clamping blocks enclose a space for accommodating a lithium battery; Second clamping blocks, multiple second clamping blocks are detachably mounted on top of the multiple first clamping blocks to increase the clamping height; The first clamping block has a second groove extending along its length at its top, and the second clamping block has a slider at its bottom that matches the second groove. The second clamping block slides with the second groove at the top of the first clamping block through the slider at its bottom, thereby achieving installation and position adjustment.

2. The lithium battery assembly fixture according to claim 1, characterized in that, Multiple first clamping blocks are interconnected and locked in position by a first locking mechanism; The first locking mechanism includes a threaded rod disposed on a first clamping block, a first through groove disposed on an adjacent first clamping block for the threaded rod to pass through, and a fastener that is threadedly engaged with the threaded rod to lock the first clamping block.

3. The lithium battery assembly fixture according to claim 2, characterized in that, The fastener is a wing nut.

4. The lithium battery assembly fixture according to claim 1, characterized in that, The cross-section of the second groove is a T-shaped groove, a dovetail groove, or a teardrop-shaped groove.

5. The lithium battery assembly fixture according to claim 1, characterized in that, Multiple second clamping blocks are interconnected and locked in position by a second locking mechanism to form an upper locking frame.

6. The lithium battery assembly fixture according to claim 5, characterized in that, The second locking mechanism includes a threaded hole on the second clamping block and a second through groove on the adjacent second clamping block for a bolt to pass through. The bolt passes through the second through groove and is threadedly connected to the threaded hole.

7. The lithium battery assembly fixture according to claim 1 or 5, characterized in that, At least one of the second clamping blocks is capable of sliding independently along the second groove to form a notch in the upper space enclosed by the plurality of second clamping blocks for avoiding the battery protrusion structure.

8. The lithium battery assembly fixture according to claim 7, characterized in that, The notch is formed by sliding at least one second clamping block to its end abutting against the side of an adjacent second clamping block.

9. The lithium battery assembly fixture according to claim 1, characterized in that, The top of the second clamping block is provided with an upper first groove that has the same structure as the second groove on the top of the first clamping block.

10. The lithium battery assembly fixture according to claim 9, characterized in that, It also includes at least one third clamping block that is identical in structure to the second clamping block. The third clamping block is mounted on top of the second clamping block to further increase the clamping height.

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