Battery cell clamping mechanism and battery cell processing device

Abstract

The utility model discloses a cell clamping mechanism and a cell processing device, the cell clamping mechanism comprises a frame, a clamping assembly and a support piece, the clamping assembly is installed on the frame, the clamping assembly comprises two upper clamping arms and two lower clamping arms, one upper clamping arm is correspondingly arranged above the lower clamping arm, and the other upper clamping arm is correspondingly arranged above the lower clamping arm. The two upper clamping arms and the two lower clamping arms can move relatively so as to clamp or loosen the two ends of the battery cell; and the supporting piece is connected to the clamping assembly and is positioned between the two lower clamping arms so as to support the middle part of the battery cell. According to the technical scheme, the battery cell clamping mechanism can clamp the two ends of the battery cell through the clamping arms on the two sides respectively, the middle of the battery cell is supported through the supporting piece, and the situation that the middle of the battery cell is bent due to the gravity effect, and then the position precision of the battery cell is affected is avoided; the problem that positive plates, negative plates and diaphragms which are stacked in a battery cell are slightly staggered is solved, rapid and stable grabbing and placing can be achieved, the carrying efficiency is improved, and the subsequent processing quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of core process equipment, in particular to a core clamping mechanism and a core processing device. Background Art

[0002] The core is the main component unit of a lithium battery. The core is formed by stacking a positive electrode sheet, a negative electrode sheet and a separator in sequence and then performing hot pressing. During the production process of a lithium battery, it is necessary to move the core to different workstations for processing. In the current lithium battery production process, a clamping jaw device is used to clamp the stacked positive electrode sheet, negative electrode sheet and separator to prevent the three from being misaligned. However, due to its own weight, the part of the core located between the two clamping jaws lacks support and will have a slight bend, resulting in the performance and dimensional accuracy of the core being lower than expected. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a core clamping mechanism, aiming to prevent the core from deforming during the processing.

[0004] To achieve the above object, the utility model proposes a core clamping mechanism, including:

[0005] A frame;

[0006] A clamping component, the clamping component is installed on the frame, the clamping component includes two upper clamping arms and two lower clamping arms, one of the upper clamping arms is correspondingly arranged above one of the lower clamping arms, and the two upper clamping arms and the two lower clamping arms can move relatively to clamp or release both ends of the core;

[0007] A support member, the support member is connected to the clamping component, and the support member is located between the two lower clamping arms to support the middle part of the core.

[0008] In some embodiments of the utility model, the clamping component further includes a first seat body and a second seat body, the first seat body is installed on the frame, the second seat body is slidably installed on the first seat body and can slide vertically relative to the first seat body;

[0009] The two lower clamping arms are installed on the first seat body, the two upper clamping arms are installed on the second seat body, and one end of the support member is connected to the first seat body.

[0010] In some embodiments of the utility model, the support member includes a substrate part and at least two arm plate parts, at least two of the arm plate parts are arranged at intervals, one end of each of the at least two arm plate parts is connected to the substrate part, the substrate part is connected to the first seat body, and the at least two arm plate parts are used to support the core.

[0011] In some embodiments of the present utility model, the substrate portion is slidably connected to the first seat body and can slide along a direction parallel to the length direction of the lower clamping arm.

[0012] In some embodiments of the present utility model, on a side of the first seat body facing away from the lower clamping arm, there is provided a mounting bracket and an avoidance notch. The avoidance notch is opened at the bottom of the first seat body, and the mounting bracket is located above the avoidance notch. The substrate portion is slidably mounted on the mounting bracket so that the support member can be telescoped into the avoidance notch.

[0013] In some embodiments of the present utility model, the first seat body further includes a slide rail. The slide rail is mounted on the bottom surface of the mounting bracket and extends along a direction parallel to the length direction of the lower clamping arm. The substrate portion is in sliding fit with the slide rail.

[0014] In some embodiments of the present utility model, the battery cell clamping mechanism further includes a driving assembly. The driving assembly is mounted on the bottom surface of the mounting bracket and is located between the two slide rails. The driving assembly is drivingly connected to the support member to drive the support member to slide along a direction parallel to the length direction of the lower clamping arm.

[0015] In some embodiments of the present utility model, on a surface of the first seat body facing away from the lower clamping arm, there are provided two assembly portions. The two assembly portions are respectively located on opposite sides in the horizontal direction of the mounting bracket, and the assembly portions are slidably connected to the frame.

[0016] In some embodiments of the present utility model, the first seat body is provided with two first horizontal spacing adjustment portions. The two lower clamping arms are respectively mounted on the two first horizontal spacing adjustment portions and can be moved and adjusted in the horizontal direction; and / or,

[0017] The second seat body is provided with two second horizontal spacing adjustment portions. The two lower clamping arms are respectively mounted on the two second horizontal spacing adjustment portions and can be moved and adjusted in the horizontal direction.

[0018] The present utility model also proposes a battery cell processing device, including the battery cell clamping mechanism described above. The battery cell clamping mechanism includes:

[0019] A frame;

[0020] A clamping assembly. The clamping assembly is mounted on the frame. The clamping assembly includes two upper clamping arms and two lower clamping arms. One upper clamping arm is correspondingly arranged above one lower clamping arm. The two upper clamping arms and the two lower clamping arms can move relative to each other to clamp or release both ends of the battery cell.

[0021] A support member, at least one end of the support member is connected to the clamping assembly, and the support member is located between the two lower clamping arms to support the middle part of the battery cell.

[0022] In the technical solution of the present utility model, the battery cell clamping mechanism can clamp the two ends of the battery cell through the clamping arms on both sides, and support the middle part of the battery cell through the support member, so as to avoid the bending of the middle part of the battery cell due to the influence of gravity, which in turn affects the position accuracy of the battery cell and the problem of slight misalignment between the stacked positive electrode sheets, negative electrode sheets and separators in the middle layer of the battery cell. It can realize fast and stable grasping and releasing, improve the handling efficiency and ensure the quality of subsequent processing. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0024] Figure 1 It is a schematic structural diagram of an embodiment of the battery cell clamping mechanism provided by the present utility model;

[0025] Figure 2 It is a schematic structural diagram of an embodiment of the clamping assembly provided by the present utility model;

[0026] Figure 3 It is a schematic structural diagram of another perspective of an embodiment of the clamping assembly provided by the present utility model;

[0027] Figure 4 It is a schematic structural diagram of yet another perspective of an embodiment of the clamping assembly provided by the present utility model.

[0028] Explanation of the Reference Numerals in the Drawings:

[0029] 100, battery cell clamping mechanism; 10, frame; 20, clamping assembly; 21, upper clamping arm; 22, lower clamping arm; 23, first seat body; 231, mounting bracket; 232, avoidance notch; 233, slide rail; 234, assembly part; 235, first horizontal spacing adjustment part; 24, second seat body; 241, second horizontal spacing adjustment part; 30, support member; 31, substrate part; 32, two arm plate parts; 40, drive assembly; 300, battery cell.

[0030] The realization of the purpose, functional characteristics and advantages of the present utility model will be further described in conjunction with the embodiments and with reference to the drawings. Detailed Embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0032] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] The present utility model provides a battery cell clamping mechanism 100, which includes a frame 10, a clamping assembly 20, and a support member 30. Among them, the clamping assembly 20 is installed on the frame 10. The clamping assembly 20 includes two upper clamping arms 21 and two lower clamping arms 22. One upper clamping arm 21 is correspondingly arranged above one lower clamping arm 22. The two upper clamping arms 21 and the two lower clamping arms 22 can move relative to each other to clamp or release both ends of the battery cell. The support member 30 is connected to the clamping assembly 20 and is located between the two lower clamping arms 22 to support the middle part of the battery cell.

[0035] The above-mentioned clamping assembly 20 is generally movable relative to the frame 10 to realize the transportation of products between different workstations. The upper clamping arm 21 and the lower clamping arm 22 can approach and separate by relative rotation or translation. During the process of clamping or releasing the battery cell, one of them can be fixed relative to the frame 10 and the other can move, or both can move relative to the frame 10. For example, the upper clamping arm 21 can rotate relative to the frame 10. When the clamping arm rotates forward, the free end approaches the lower clamping arm 22 to clamp the battery cell, and when the clamping arm rotates backward, the free end moves away from the lower clamping arm 22 to release the battery cell.

[0036] The above-mentioned support member 30 is generally arranged in a plate shape and has a good support effect on electricity. The support member 30 can be connected between the two lower clamping arms 22 of the clamping assembly 20, or can be connected to other parts of the clamping assembly 20, and is arranged such that the free end extends to the middle position between the two clamping arms. The specific implementation manner is set according to the actual situation and is not limited herein.

[0037] In the technical solution of the present utility model, the battery cell 300 clamping mechanism 100 can clamp both ends of the battery cell 300 through the clamping arms on both sides, and support the middle part of the battery cell 300 through the support member 30, avoiding the problem that the middle part of the battery cell 300 is bent due to the influence of gravity, thereby affecting the position accuracy of the battery cell 300 and the problem of slight misalignment between the stacked positive electrode sheets, negative electrode sheets and separators in the battery cell 300. It can achieve fast and stable grasping and placing, improve the handling efficiency and ensure the quality of subsequent processing.

[0038] Preferably, in some embodiments of the present utility model, the clamping assembly 20 further includes a first seat body 23 and a second seat body 24. The first seat body 23 is installed on the frame 10, the second seat body 24 is slidably installed on the first seat body 23 and can slide vertically relative to the first seat body 23; the two lower clamping arms 22 are installed on the first seat body 23, the two upper clamping arms 21 are installed on the second seat body 24, and one end of the support member 30 is connected to the first seat body 23. With such a setting, before clamping the battery cell, during the process of moving the upper clamping arm 21 away from the lower clamping arm 22, the second seat body 24 can be slid to drive the two upper clamping arms 21 to move. During the clamping process, the two upper clamping arms 21 are driven by the second seat body 24 to press down, with good consistency, and the two clamping arms operate synchronously, with higher efficiency.

[0039] In some embodiments of the present utility model, two assembly parts 234 are provided on one side of the first seat body 23 facing away from the lower clamping arm 22. The two assembly parts 234 are respectively located on the opposite sides in the horizontal direction of the mounting bracket 231, and the assembly parts 234 are slidably connected to the frame 10. In this way, by moving the first seat body 23, the upper clamping arm 21 and the lower clamping arm 22 can be driven to move simultaneously, driving the battery cell to move.

[0040] Further, in some embodiments of the present utility model, the support member 30 includes a substrate portion 31 and at least two arm plate portions 32. The at least two arm plate portions are spaced apart. One ends of the two arm plate portions 32 are both connected to the substrate portion 31. The substrate portion 31 is connected to the first seat body 23. The at least two arm plate portions are used for supporting the battery cell. In this way, the support effect of the support member 30 is better, and the flatness of the battery cell when being clamped is higher.

[0041] Further, in some embodiments of the present utility model, the substrate portion 31 is slidably connected to the first seat body 23 and can slide along a direction parallel to the length direction of the lower clamping arm 22. In this way, the length of the support member 30 can be adjusted by sliding, which is applicable to supporting battery cells of different sizes. In addition, after the battery cell clamping mechanism 100 completes the handling of the battery cell, when the battery cell is placed on the target tabletop, the support member 30 can be moved to be withdrawn from between the battery cell and the tabletop. The tabletop forms a support for the battery cell. At this time, the lower clamping arm 22 can be withdrawn. The handling reliability is high and the efficiency is fast.

[0042] In some embodiments of the present utility model, on a side of the first seat body 23 facing away from the lower clamping arm 22, there is provided an installation bracket 231 and an avoidance notch 232. The avoidance notch 232 is opened at the bottom of the first seat body 23. The installation bracket 231 is located above the avoidance notch 232. The substrate portion 31 is slidably installed on the installation bracket 231 so that the support member 30 can be telescoped in the avoidance notch 232. With such a setting, during the handling process of the battery cell, the support member 30 can be partially or completely retracted into the avoidance notch 232. The sliding range of the support member 30 is large, and the adjustability of the telescopic length is high.

[0043] There are various specific implementation manners for the substrate portion 31 to be slidably connected to the first seat body 23. In some embodiments of the present utility model, the first seat body 23 is provided with a receiving groove. The support member 30 is in sliding fit with the receiving groove and can be received in the receiving groove.

[0044] In some other embodiments of the present utility model, the first seat body 23 further includes a slide rail 233. The slide rail 233 is installed on the bottom surface of the installation bracket 231 and extends along a direction parallel to the length direction of the lower clamping arm 22. The substrate portion 31 is in sliding fit with the slide rail 233. With such a setting, the support member 30 and the slide rail 233 are exposed, which is convenient for maintenance. Moreover, by limiting the substrate portion 31 through the slide rail 233, the sliding stability of the substrate portion 31 is relatively high.

[0045] The above-mentioned support member 30 can be slid by manual pushing and pulling, or can be automatically driven by driving members such as cylinders and motors to drive the support member 30 to slide. In some embodiments of the present invention, the battery cell clamping mechanism 100 further includes a driving assembly 40. The driving assembly is installed on the bottom surface of the mounting bracket 231 and is located between the two slide rails 233. The driving assembly 40 is drivingly connected to the support member 30 to drive the support member 30 to slide along a direction parallel to the length direction of the lower clamping arm 22. This can reduce manual operation, reduce misoperation, reduce labor costs, and improve product consistency and processing efficiency.

[0046] In some embodiments of the present invention, the first seat body 23 is provided with two first horizontal spacing adjustment portions 235, and the two lower clamping arms 22 are respectively installed on the two first horizontal spacing adjustment portions and can be adjusted to move horizontally. In some other embodiments of the present invention, the second seat body 24 is provided with two second horizontal spacing adjustment portions 241, and the two lower clamping arms 22 are respectively installed on the two second horizontal spacing adjustment portions and can be adjusted to move horizontally. This can further improve the adaptability of the battery cell clamping mechanism 100 and can be used to clamp battery cells of more size models. The above-mentioned first horizontal spacing adjustment portion 235 and the second horizontal spacing adjustment portion 241 can be set as chutes or can be set as sliding tracks, and the clamping arm can be locked after the position is adjusted by a locking bolt.

[0047] The present invention also provides a battery cell processing device, including the above-mentioned battery cell clamping mechanism 100. Since this battery cell processing device includes all the technical solutions of the above-mentioned all embodiments, it at least has all the beneficial effects brought by all the technical solutions of the above-mentioned embodiments, and will not be elaborated here one by one.

[0048] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A battery cell clamping mechanism (100), characterized in that, Comprising: A frame (10); A clamping assembly (20), the clamping assembly (20) being mounted on the frame (10), the clamping assembly (20) including two upper clamping arms (21) and two lower clamping arms (22), one of the upper clamping arms (21) being correspondingly disposed above one of the lower clamping arms (22), the two upper clamping arms (21) and the two lower clamping arms (22) being relatively movable to clamp or release both ends of the battery cell; and A support member (30), the support member (30) being connected to the clamping assembly (20) and located between the two lower clamping arms (22) to support the middle part of the battery cell.

2. The cell clamping mechanism (100) according to claim 1, characterized in that, The clamping assembly (20) further includes a first seat body (23) and a second seat body (24), the first seat body (23) being mounted on the frame (10), the second seat body (24) being slidably mounted on the first seat body (23) and capable of sliding vertically relative to the first seat body (23); The two lower clamping arms (22) are mounted on the first seat body (23), the two upper clamping arms (21) are mounted on the second seat body (24), and the support member (30) is connected to the first seat body (23).

3. The cell clamping mechanism (100) according to claim 2, wherein, The support member (30) includes a substrate portion (31) and at least two arm plate portions (32), the at least two arm plate portions being spaced apart, one end of each of the two arm plate portions being connected to the substrate portion, the substrate portion (31) being connected to the first seat body (23), and the at least two arm plate portions being used to support the battery cell.

4. The cell clamping mechanism (100) according to claim 3, wherein, The substrate portion (31) is slidably connected to the first seat body (23) and capable of sliding in a direction parallel to the length direction of the lower clamping arm (22).

5. The cell clamping mechanism (100) according to claim 4, characterized in that, On a side of the first seat body (23) facing away from the lower clamping arm (22), there is provided a mounting bracket (231) and an avoidance notch (232), the avoidance notch (232) being opened at the bottom of the first seat body (23), the mounting bracket (231) being located above the avoidance notch (232), and the substrate portion (31) being slidably mounted on the mounting bracket (231) so that the support member (30) can be telescoped within the avoidance notch (232).

6. The cell clamping mechanism (100) according to claim 5, wherein, The first seat body (23) further includes a slide rail (233), the slide rail (233) being mounted on the bottom surface of the mounting bracket (231) and extending in a direction parallel to the length direction of the lower clamping arm (22), and the substrate portion (31) being in sliding fit with the slide rail (233).

7. The cell clamping mechanism (100) according to claim 6, characterized in that, The battery cell clamping mechanism (100) further includes a driving assembly (40), the driving assembly being mounted on the bottom surface of the mounting bracket (231) and located between the two slide rails (233), the driving assembly (40) being drivingly connected to the support member (30) to drive the support member (30) to slide in a direction parallel to the length direction of the lower clamping arm (22).

8. The cell clamping mechanism (100) according to claim 5, wherein, On one side of the first base body (23) facing away from the lower clamping arm (22), there are two assembly parts (234) provided. The two assembly parts (234) are respectively located on opposite sides of the mounting bracket (231) in the horizontal direction, and the assembly parts (234) are slidably connected to the machine frame (10).

9. The cell clamping mechanism (100) according to claim 2, wherein, The first base body (23) is provided with two first horizontal spacing adjustment parts (235). The two lower clamping arms (22) are respectively installed on the two first horizontal spacing adjustment parts and can be adjusted by moving in the horizontal direction; and / or, The second base body (24) is provided with two second horizontal spacing adjustment parts (241). The two upper clamping arms (21) are respectively installed on the two second horizontal spacing adjustment parts and can be adjusted by moving in the horizontal direction.

10. A battery cell processing device, characterized in that, It includes the battery cell clamping mechanism (100) according to any one of claims 1 to 9.

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