Lithium battery top cover feeding assembly

Abstract

The utility model discloses a lithium battery top cover feeding assembly which comprises a movable plate, a support, a material box bottom plate, an injection molding barrier strip, a top cover, a fool-proof block, an air cylinder fixing plate and a stroke air cylinder, the air cylinder fixing plate is arranged at the bottom of the support, the stroke air cylinder is arranged on the air cylinder fixing plate, the support is provided with the movable plate, and the movable plate is connected with the stroke air cylinder. A plurality of material box bottom plates are arranged on the movable plate, a plurality of groups of injection molding barrier strips are arranged on the material box bottom plates, fool-proof blocks are arranged among the injection molding barrier strips, and a top cover with an assembly is placed on the injection molding barrier strips and the fool-proof blocks in a matched manner. The top cover assembling device has the advantages of being reasonable in structural design, high in compatibility and low in cost, and assembling of different types of top covers can be achieved by changing the positions of the gear shifting bar and the fool-proof angle.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production equipment, specifically to a lithium battery top cover feeding assembly. Background Technology

[0002] With the rapid development of new energy vehicles, energy storage systems, and portable electronic devices, the demand for power and energy storage lithium-ion batteries has surged. The lithium battery top cover, as a key connecting component between the battery casing and the internal cell structure, integrates explosion-proof valves, terminals, electrolyte filling holes, and sealing structures. Its assembly quality directly affects the battery's safety, cycle life, and consistency.

[0003] The existing lithium battery top cover feeding process has the following main shortcomings:

[0004] 1. Insufficient positioning accuracy

[0005] Traditional vacuum adsorption or standard fixture positioning methods have poor control over the alignment error between the top cover and the battery casing, which is usually within the range of ±0.2 to ±0.5 mm. This makes it difficult to meet the welding sealing requirements of ±0.1 mm, resulting in poor weld joints, liquid leakage during injection, or sealing failure.

[0006] 2. The feeding cycle time is insufficient to meet the demands of high-production lines.

[0007] With increased production capacity, the cycle time requirements for power battery production lines have reached tens to hundreds of cells per minute. The material loading response time of traditional systems is mostly in the hundreds of milliseconds to seconds, which cannot be stably matched with high-cycle production. Moreover, changing the top cover model often requires changing the clamp or adjusting parameters, causing production line downtime.

[0008] 3. Low compatibility and flexibility

[0009] The market offers a wide variety of top cover structures—cylindrical, square, and pouch battery top covers vary greatly in size, shape, and the location of explosion-proof valves. Existing feeding devices are generally designed for a single specification, requiring the replacement of specialized parts when switching production models. This adjustment is time-consuming and involves a lot of manual intervention, making it difficult to achieve flexible production.

[0010] 4. Weak online quality inspection capabilities

[0011] Currently, most inspections are conducted after the fact or offline testing. This makes it impossible to simultaneously detect scratches, deformation, seal integrity, and insulation performance on the top cover surface during the material loading process. As a result, defective products cannot be removed in a timely manner, increasing the quality risks in subsequent processes.

[0012] Therefore, there is a need for a lithium battery top cover feeding assembly that can achieve high-precision positioning, high-speed feeding, compatibility with multiple top cover specifications, and integrated online detection functions, in order to meet the stringent requirements of modern power battery production lines for automation and quality control. Utility Model Content

[0013] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a lithium battery top cover feeding assembly with a reasonable structural design, strong compatibility, and low cost. It can achieve the assembly of different types of top covers by changing the positions of the baffles and anti-foolproof corners.

[0014] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery top cover feeding assembly, comprising a movable plate, a bracket, a material box bottom plate, injection molding baffles, a top cover, anti-misalignment blocks, a cylinder fixing plate, and a stroke cylinder. The cylinder fixing plate is located at the bottom of the bracket, and a stroke cylinder is mounted on the cylinder fixing plate. The movable plate is mounted on the bracket and connected to the stroke cylinder. Multiple material box bottom plates are mounted on the movable plate, and multiple sets of injection molding baffles are mounted on the material box bottom plates. Anti-misalignment blocks are positioned between the injection molding baffles and the anti-misalignment blocks, and a top cover with assembly is placed in cooperation with the injection molding baffles and the anti-misalignment blocks.

[0015] Preferably, the positions of the injection molding stop strip and the anti-fool block are adjustable.

[0016] The beneficial effects of this utility model are as follows: This utility model achieves material feeding by pushing the movable plate with a stroke cylinder. The positions of the injection molding baffle and the anti-fool block are adjustable, which has the advantages of strong compatibility and low cost. Different types of top cover assembly can be achieved by changing the positions of the baffle and the anti-fool block. Attached Figure Description

[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is an exploded view of the present invention. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Reference Figure 1-2 The specific embodiment adopts the following technical solution: a lithium battery top cover feeding assembly, including a movable plate 1, a bracket 2, a material box bottom plate 3, injection molding baffles 4, a top cover 5, a foolproof block 6, a cylinder fixing plate 7, and a stroke cylinder 8. The cylinder fixing plate 7 is set at the bottom of the bracket 2, and the stroke cylinder 8 is set on the cylinder fixing plate 7. The movable plate 1 is set on the bracket 2 and connected to the stroke cylinder 8. Multiple material box bottom plates 3 are set on the movable plate 1, and multiple sets of injection molding baffles 4 are set on the material box bottom plates 3. Foolproof blocks 6 are set between the injection molding baffles 4. The top cover 5 with assembly is placed in cooperation with the injection molding baffles 4 and the foolproof blocks 6.

[0022] It is worth noting that the positions of the injection molding baffle 4 and the anti-fool block 6 are adjustable.

[0023] The working principle of this specific implementation method is as follows: After placing the top cover to be assembled into the material tray assembly, the movable plate is pushed to the assembly station by the stroke cylinder, and the assembly is completed by an external robotic arm. This feeding assembly has strong compatibility and low cost. By changing the position of the stop bar and the anti-fool angle, different types of top covers can be assembled.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lithium battery top cover feeding assembly, characterized in that, The assembly includes a movable plate (1), a bracket (2), a material box bottom plate (3), an injection molding baffle (4), a top cover (5), a foolproof block (6), a cylinder fixing plate (7), and a stroke cylinder (8). The cylinder fixing plate (7) is located at the bottom of the bracket (2), and the stroke cylinder (8) is installed on the cylinder fixing plate (7). The movable plate (1) is installed on the bracket (2), and the movable plate (1) is connected to the stroke cylinder (8). Multiple material box bottom plates (3) are installed on the movable plate (1), and multiple sets of injection molding baffles (4) are installed on the material box bottom plate (3). A foolproof block (6) is installed between the injection molding baffles (4), and the top cover (5) with assembly is placed in cooperation with the injection molding baffles (4) and the foolproof block (6).

2. The lithium battery top cover feeding assembly according to claim 1, characterized in that, The positions of the injection molding baffle (4) and the anti-fool block (6) are adjustable.

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