Liquid injection port clamping device for lithium battery

Abstract

The utility model relates to battery production equipment technical field discloses a kind of lithium battery's liquid injection port clamping device, including bottom plate, the bottom plate top fixedly connected with stand, partition and the second clamping block being fixed in the both sides of the partition;The device further includes driving assembly and clamping component driving assembly It includes the connecting frame fixedly connected in the outside of the stand, the connecting plate fixedly connected in the bottom plate top, and the screw rod rotationally connected in the middle part of the connecting plate with The connecting frame;The clamping component includes the moving plate screwing on the outside of the screw rod, and the first clamping block fixedly connected on the outside of the moving plate The first clamping block is oppositely arranged with the second clamping block.The utility model structure is simple, transmission is stable, through screw rod transmission realizes the synchronous fast clamping of multiple lithium batteries, positioning is accurate, clamping is reliable, and production efficiency is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of battery production equipment technology, and in particular to a liquid injection port clamping device for lithium batteries. Background Technology

[0002] Lithium-ion batteries, as highly efficient energy storage devices, are widely used in modern electronic devices and new energy vehicles. In the manufacturing process of lithium-ion batteries, the electrolyte injection process is a crucial step, requiring the precise and stable injection of electrolyte into the battery body. To ensure the quality and consistency of the electrolyte injection, the injection port area at the top of the lithium-ion battery must be reliably clamped and secured before injection.

[0003] In current production practices, clamping devices are typically used to position and secure lithium batteries. However, existing clamping devices have structural design shortcomings. For example, many clamping devices rely on multiple independent and separate drive components (such as cylinders or manual knobs) to drive the corresponding grippers to clamp one or more batteries.

[0004] This decentralized clamping method results in cumbersome operation procedures during mass production, requiring operators to adjust or drive multiple clamping points one by one, significantly reducing production efficiency. More importantly, because the actions of each driving component are difficult to guarantee in terms of timing and force consistency, the clamping of multiple lithium batteries is not synchronized, and the final clamping force of each battery may also be uneven. This inconsistency can easily lead to unstable clamping of some batteries, causing displacement or shaking during the liquid injection process, which in turn affects the precise alignment of the liquid injection needle and the liquid injection port, adversely affecting the product qualification rate. Therefore, this utility model proposes a liquid injection port clamping device for lithium batteries to solve the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems of cumbersome clamping operation, low efficiency and difficulty in synchronous and stable clamping of multiple batteries in the existing lithium battery filling port clamping device, this utility model aims to provide a lithium battery filling port clamping device with improved structure that can effectively solve the above problems.

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

[0007] This utility model provides a lithium battery filling port clamping device, comprising: a base plate; a column fixedly connected to the top of the base plate; a partition plate fixedly connected to the top of the base plate; a second clamping block fixedly connected to both sides of the partition plate; a driving assembly and a clamping assembly.

[0008] The drive assembly includes a connecting frame fixedly connected to the outside of the column, a connecting plate fixedly connected to the top of the base plate, and a lead screw rotatably connected to the connecting plate and the middle of the connecting frame.

[0009] The clamping assembly includes a movable plate threaded to the outside of the lead screw, and a first clamping block fixedly connected to the outside of the movable plate.

[0010] Furthermore, the first clamping block and the second clamping block are arranged opposite to each other, and the moving plate is configured to drive the first clamping block toward the second clamping block under the rotation drive of the lead screw, thereby realizing the clamping of the lithium battery body.

[0011] Preferably, the connecting frame has a circular groove in the middle, and the lead screw has a circumferential limiting groove at the position corresponding to the circular groove. The lead screw is engaged with the circular groove through the limiting groove. This engagement structure ensures that the lead screw will not move axially when rotating, thus ensuring the stability of the transmission.

[0012] Preferably, the drive assembly further includes the screw, which is fixedly connected to the end of the lead screw to facilitate manual rotation by an operator.

[0013] Preferably, both the first clamping block and the second clamping block have grooves on their outer sides that are adapted to the shape of the top of the lithium battery body. The grooves increase the clamping contact surface and improve the fit, making the clamping action more stable and reliable.

[0014] Preferably, the top of the base plate is also fixedly connected to the positioning frame, which is located directly below the clamping assembly. The positioning frame is used to initially limit the position of the lithium battery body before the clamping action occurs, thereby improving loading efficiency and alignment accuracy before clamping.

[0015] Preferably, the first clamp and the second clamp are configured to specifically clamp the liquid injection groove area on the top of the lithium battery body, ensuring precise fixation of key parts in subsequent processes.

[0016] Preferably, the movable plate includes two movable plates, which are symmetrically threaded to both ends of the lead screw, so that when the lead screw rotates, the two movable plates can simultaneously drive the first clamping blocks on them to move towards or away from each other, thereby achieving synchronous clamping or synchronous release.

[0017] Preferably, the first clamping block and the second clamping block are arranged alternately along the length direction of the moving plate and the partition plate. This arrangement forms multiple clamping units for clamping the lithium battery body on both sides of the partition plate, thereby realizing batch synchronous clamping of multiple lithium battery bodies by one device.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problems of cumbersome clamping operation, low efficiency, and difficulty in ensuring that multiple batteries are clamped synchronously in the prior art by setting a rotating lead screw and a movable plate threadedly connected to the lead screw, and fixing a first clamping block on the movable plate, so that the first clamping block cooperates with a fixedly set second clamping block. It achieves the technical effect of synchronously, quickly and stably clamping multiple lithium battery bodies, and significantly improves production efficiency.

[0020] 2. This utility model solves the problems of inaccurate clamping and positioning, poor clamping stability, and easy shaking or damage of the battery body during liquid injection by setting a positioning frame on the top of the base plate, and by setting grooves on the outer sides of the first clamping block and the second clamping block that are adapted to the shape of the top of the lithium battery body. It achieves the dual effect of accurate positioning and stable clamping, ensuring the accuracy of subsequent liquid injection processes.

[0021] 3. This utility model limits the axial position of the lead screw by setting a circular groove on the connecting frame to engage with the limiting groove on the lead screw, and uses screw torque to drive the lead screw to rotate. This solves the problems of complex structure, unstable transmission or easy axial movement of the lead screw that may exist in the existing drive mechanism, and achieves the technical effect of simple structure, stable and reliable transmission and convenient operation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a lithium battery filling port clamping device proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the positioning frame of a lithium battery filling port clamping device proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the top structure of the liquid injection port clamping device for a lithium battery proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the lead screw structure of a lithium battery filling port clamping device proposed in this utility model;

[0026] Figure 5This is a schematic diagram of the moving plate of a lithium battery filling port clamping device proposed in this utility model.

[0027] Legend:

[0028] 1. Base plate; 2. Column; 3. Drive assembly; 301. Connecting frame; 302. Screw; 303. Lead screw; 304. Connecting plate; 4. Clamping assembly; 401. Moving plate; 402. First clamping block; 403. Divider plate; 404. Second clamping block; 5. Positioning frame; 6. Lithium battery body; 7. Injection tank; 8. Circular groove; 9. Limiting groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please refer to Figures 1 to 5 This utility model provides a lithium battery filling port clamping device, which aims to solve the problem that the existing technology has a cumbersome structure and makes it difficult to achieve synchronous and stable clamping of multiple batteries when clamping and fixing lithium batteries.

[0031] like Figure 1 As shown, the lithium battery filling port clamping device includes a base plate 1, which serves as the mounting base for the entire device. A column 2 is fixedly connected to the top of the base plate 1, providing support for the upper components of the device. A partition plate 403 is also fixedly connected to the top of the base plate 1, and second clamping blocks 404 are fixedly connected to both sides of the partition plate 403, serving as clamping components during the clamping process. The device also includes a drive assembly 3 and a clamping assembly 4. The drive assembly 3 provides power to drive the clamping assembly 4 to move linearly. The clamping assembly 4 cooperates with the second clamping blocks 404 on the partition plate 403 to jointly clamp and fix the lithium battery body 6. Specifically, the drive assembly 3... The assembly includes a connecting frame 301 fixedly connected to the outside of the column 2, and a connecting plate 304 fixedly connected to the top of the base plate 1; a lead screw 303 is rotatably connected to the middle of the connecting plate 304 and the connecting frame 301; a screw 302 is fixedly connected to the end of the lead screw 303; the clamping assembly 4 includes a moving plate 401 threadedly connected to the outside of the lead screw 303, and a first clamping block 402 fixedly connected to the outside of the moving plate 401; the first clamping block 402 and the second clamping block 404 are arranged opposite to each other, and when the lead screw 303 rotates under the drive of the screw 302, the moving plate 401 will move linearly along the lead screw 303, thereby driving the first clamping block 402 to move toward or away from the second clamping block 404.

[0032] To solve the above-mentioned technical problems, the technical solution of this embodiment is that the liquid filling port clamping device of the lithium battery further includes a connecting frame 301, and the connecting frame 301 forms a specific structural fit and connection relationship with the aforementioned column 2 and lead screw 303.

[0033] Please refer to the following carefully. Figure 3 and Figure 4 The structure will be described in detail below:

[0034] The lead screw 303 is rotatably connected to the middle of the connecting plate 304 and the connecting frame 301. Specifically, a circular groove 8 is provided in the middle of the connecting frame 301, and a circumferential limiting groove 9 is provided at the position of the lead screw 303 corresponding to the circular groove 8. The lead screw 303 is engaged with the circular groove 8 through the limiting groove 9. This engagement structure ensures that the lead screw 303 will not move forward or backward axially during rotation, thereby restricting the movement of the lead screw 303 to pure rotation.

[0035] Meanwhile, the movable plate 401 of the clamping assembly 4 has internal threads that engage with the outer threads of the lead screw 303 to form a threaded connection. In the assembled state, when the screw 302 drives the lead screw 303 to rotate, the rotational motion of the lead screw 303 is converted into the linear translational motion of the movable plate 401 through threaded transmission, thereby realizing the conversion of rotational power into linear clamping action. There are two movable plates 401, which are symmetrically threaded to both ends of the lead screw 303 and drive the first clamping blocks 402 on them to move towards or away from each other to achieve synchronous clamping of the lithium battery body 6.

[0036] In addition, in order to achieve precise clamping of the lithium battery body 6, a positioning frame 5 is fixedly connected to the top of the base plate 1. The positioning frame 5 is located directly below the clamping assembly 4 and is used to initially define the position of the lithium battery body 6 before clamping. The outer sides of the first clamping block 402 and the second clamping block 404 are provided with grooves that are adapted to the shape of the top of the lithium battery body 6. These grooves ensure a tight fit with the liquid injection groove 7 area of ​​the lithium battery body 6 during clamping, providing a stable clamping effect.

[0037] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0038] In one preferred embodiment, to facilitate manual operation of the drive assembly 3, the drive assembly 3 further includes a screw 302 fixedly connected to the end of the lead screw 303, which can be easily driven to rotate the lead screw 303 by rotating the screw 302; in another preferred embodiment, to enhance the stability and fit of the lithium battery body 6 and avoid damage to the battery, the outer sides of the first clamping block 402 and the second clamping block 404 are both provided with grooves that match the shape of the top of the lithium battery body 6; in yet another preferred embodiment, to improve the efficiency of placing the lithium battery body 6 and the accuracy of initial positioning, the base plate 1... A positioning frame 5 is also fixedly connected to the top, and the positioning frame 5 is located directly below the clamping assembly 4. In a preferred embodiment, in order to accurately fix the operating area of ​​the subsequent liquid injection process, the first clamping block 402 and the second clamping block 404 are configured to specifically clamp the liquid injection groove 7 on the top of the lithium battery body 6. In a preferred embodiment, in order to achieve synchronous processing of multiple lithium battery bodies 6 and improve production efficiency, the first clamping block 402 and the second clamping block 404 are staggered along the length direction of the moving plate 401 and the partition plate 403, thereby forming multiple clamping units for clamping the lithium battery bodies 6.

[0039] Working principle: When in use, first place the lithium battery body 6 into the positioning frame 5 fixed on the top of the base plate 1 to complete the initial placement and positioning; then, rotate the screw 302 fixed at the end of the lead screw 303 inward, and the screw 302 will drive the lead screw 303 to rotate; since the limiting groove 9 on the lead screw 303 and the circular groove 8 on the connecting frame 301 are engaged with each other, the lead screw 303 is restricted to pure rotational movement between the connecting frame 301 and the connecting plate 304, and will not produce axial movement.

[0040] During the rotation of the lead screw 303, the rotational motion of the lead screw 303 is precisely converted into the linear translational motion of the moving plate 401 through the threaded transmission between the lead screw 303 and the moving plate 401. The moving plate 401 then drives the first clamping block 402, which is fixedly connected to its outer side, to move inward synchronously, continuously approaching the second clamping blocks 404 fixed on both sides of the partition plate 403, until the two together clamp and fix the liquid injection groove 7 area on the top of the lithium battery body 6, thereby completing the stable and reliable clamping of the lithium battery body 6 and preparing for the subsequent liquid injection process.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A lithium battery filling port clamping device, comprising: Base plate (1); The column (2) is fixedly connected to the top of the base plate (1); A partition plate (403) is fixedly connected to the top of the base plate (1); And a second clamping block (404), which is fixedly connected to both sides of the partition plate (403); The lithium battery filling port clamping device is characterized in that it further includes: The drive assembly (3) includes a connecting frame (301) fixedly connected to the outside of the column (2), a connecting plate (304) fixedly connected to the top of the base plate (1), and a lead screw (303) rotatably connected between the connecting plate (304) and the middle of the connecting frame (301). The clamping assembly (4) includes a movable plate (401) threaded to the outside of the lead screw (303) and a first clamping block (402) fixedly connected to the outside of the movable plate (401). The first clamping block (402) and the second clamping block (404) are arranged opposite to each other. When the lead screw (303) rotates, the moving plate (401) drives the first clamping block (402) to move toward the second clamping block (404) to clamp the lithium battery body (6).

2. The lithium battery filling port clamping device according to claim 1, characterized in that, The connecting frame (301) has a circular groove (8) in the middle, and the lead screw (303) has a circumferential limiting groove (9) at the position corresponding to the circular groove (8). The lead screw (303) is engaged with the circular groove (8) through the limiting groove (9).

3. The lithium battery filling port clamping device according to claim 1, characterized in that, The drive assembly (3) also includes a screw (302) fixedly connected to the end of the lead screw (303).

4. The lithium battery filling port clamping device according to claim 1, characterized in that, The outer sides of both the first clamping block (402) and the second clamping block (404) are provided with grooves that are adapted to the top shape of the lithium battery body (6).

5. The lithium battery filling port clamping device according to claim 1, characterized in that, A positioning frame (5) is also fixedly connected to the top of the base plate (1), and the positioning frame (5) is located directly below the clamping assembly (4).

6. The lithium battery filling port clamping device according to claim 1, characterized in that, The first clamp (402) and the second clamp (404) are configured to clamp the liquid injection groove (7) on the top of the lithium battery body (6).

7. The lithium battery filling port clamping device according to claim 1, characterized in that, The movable plate (401) includes two, which are symmetrically threaded to both ends of the lead screw (303) and drive the first clamping block (402) on it to move towards or away from each other.

8. The lithium battery filling port clamping device according to claim 1, characterized in that, The first clamping block (402) and the second clamping block (404) are arranged alternately along the length direction of the moving plate (401) and the partition plate (403) to form a clamping unit for clamping the lithium battery body (6).

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