An automatic adjustable gripper for aluminum shell plasma cleaning

Abstract

This utility model discloses an automatic adjusting gripper for aluminum shell plasma cleaning, relating to the field of lithium battery manufacturing. It includes a cylinder fixing cover, a crank cylinder, a crank, a rotary bearing, a square tube, a rotating shaft, a balancing cylinder, a gripper handle, and a chuck made of silicone material. The crank cylinder is mounted on the cylinder fixing cover and connected to the rotating shaft via the crank and rotary bearing. The rotating shaft passes through the square tube and is connected to the crossbar of the gripper handle. A balancing cylinder is positioned above the crossbar, with its end connected to the tail of the gripper handle. The head of the gripper handle is fitted with a chuck made of silicone material. This utility model features a reasonable structural design, flexible clamping to protect the workpiece, a compact structure, and rapid response, significantly improving the automation level and surface treatment quality of aluminum shell plasma cleaning.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery manufacturing, specifically to an automatic adjusting gripper for aluminum shell plasma cleaning. Background Technology

[0002] As a core component of new energy vehicles and energy storage systems, power batteries face extremely high requirements for safety, reliability, and consistency. Among these, the aluminum casing, a key packaging structure for pouch batteries, not only protects the cells and provides mechanical support but also directly affects subsequent welding sealing, thermal management, and electrical performance. The surface of the stamped aluminum casing is typically contaminated with stamping oil, metal particles, dust, and other pollutants. Furthermore, when exposed to air, a non-conductive aluminum oxide film (Al2O3) easily forms on its surface, with a thickness reaching 5-20 nanometers.

[0003] This oxide film will significantly reduce the weldability of the aluminum shell to other conductive components (such as cover plates, electrode posts, etc.), increase contact resistance, and also affect the adhesion of adhesives in the bonding process. In addition, the poor hydrophilicity of the aluminum shell surface will result in insufficient liquid spread and a large contact angle during liquid injection or vacuum potting, affecting electrolyte wetting and airtightness control.

[0004] Traditional cleaning methods, such as ultrasonic cleaning and alcohol wiping, have limited ability to remove particles at the 0.1μm level and dense oxide films. To address these challenges, the industry widely adopts plasma cleaning technology, which uses oxygen / argon plasma to bombard the aluminum shell surface, breaking down the oxide film, removing organic contaminants, and increasing surface energy. This reduces the contact angle from >90° to <10°, significantly enhancing surface hydrophilicity and adhesion, thereby improving welding quality and packaging reliability.

[0005] However, in actual production lines, aluminum shells are thin and easily deformed. Plasma nozzles have high requirements for cleaning angles and paths. If the clamping method is not reasonable, it is easy to create cleaning blind spots or scratch the surface of the aluminum shell, affecting the yield. Traditional rigid fixtures cannot adapt to the deformation characteristics of aluminum shells, lack self-adjustment capabilities, and cannot guarantee full-coverage cleaning.

[0006] Therefore, there is an urgent need for a plasma cleaning gripper device with automatic adjustment, flexible clamping, and non-destructive pressing functions to improve the automation level and surface treatment quality of aluminum shell plasma cleaning. Utility Model Content

[0007] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an automatic adjusting gripper for aluminum shell plasma cleaning. The gripper has a reasonable structural design, flexible clamping to protect the workpiece, a compact structure, and a rapid response, which greatly improves the automation level and surface treatment quality of aluminum shell plasma cleaning.

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic adjusting gripper for aluminum shell plasma cleaning, comprising a cylinder fixing cover, a crank cylinder, a crank, a rotary bearing, a square tube, a rotating shaft, a balancing cylinder, a gripper handle, and a gripper head made of silicone material. The crank cylinder is mounted on the cylinder fixing cover and is connected to the rotating shaft via the crank and the rotary bearing. The rotating shaft passes through the square tube and is connected to the crossbar of the gripper handle. A balancing cylinder is mounted above the crossbar and its end is connected to the tail of the gripper handle. A gripper head made of silicone material is mounted at the head of the gripper handle.

[0009] Preferably, the clamping arms on both sides of the clamping handle are hinged to both ends of the crossbar.

[0010] This utility model uses a crank cylinder to drive a crank to rotate a rotating shaft, and controls a balance cylinder to achieve the purpose of opening and closing the grippers to grasp the aluminum shell.

[0011] The beneficial effects of this utility model: This utility model 1. The silicone chuck prevents scratches on the aluminum shell surface, and the balance cylinder can precisely adjust the clamping force to adapt to aluminum shells of different thicknesses.

[0012] 2. The crank-rotary shaft transmission mechanism simplifies the power transmission path, and the opening and closing action is fast and stable, improving the cleaning cycle efficiency.

[0013] 3. The balance cylinder compensates for the clamping force in real time, which can adapt to slight differences in the size of the aluminum shell and reduce the impact of positioning errors. Attached Figure Description

[0014] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments; Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0015] 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.

[0016] Reference Figure 1 The specific embodiment adopts the following technical solution: an automatic adjusting gripper for aluminum shell plasma cleaning, including a cylinder fixing cover 1, a crank cylinder 2, a crank 3, a rotary bearing 4, a square tube 5, a rotating shaft 6, a balancing cylinder 7, a gripper 8, and a gripper 9 with silicone material. The crank cylinder 2 is provided on the cylinder fixing cover 1. The crank cylinder 2 is connected to the rotating shaft 6 through the crank 3 and the rotary bearing 4. The rotating shaft 6 passes through the square tube 5 and is connected to the crossbar of the gripper 8. The balancing cylinder 7 is provided above the crossbar. The end of the balancing cylinder 7 is connected to the tail of the gripper 8. The head of the gripper 8 is provided with a gripper 9 with silicone material.

[0017] It is worth noting that the clamping arms on both sides of the clamping handle 8 are hinged to the two ends of the crossbar.

[0018] The working principle of this specific implementation is as follows: the crank cylinder 2 drives the crank 3 to rotate, which drives the rotating shaft 6 and the crossbar of the clamping handle 8 to rotate synchronously through the rotating bearing 4. The clamping arms on both sides open and close with the crossbar as the fulcrum. The balance cylinder 7 is connected to the tail of the clamping handle 8. The clamping force of the clamping arms is controlled by adjusting the air pressure. Finally, the gripper 9 with silicone material completes the gripping and release of the aluminum shell.

[0019] 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. An automatic adjusting gripper for aluminum shell plasma cleaning, characterized in that, The device includes a cylinder mounting cover (1), a crank cylinder (2), a crank (3), a rotary bearing (4), a square tube (5), a rotating shaft (6), a balance cylinder (7), a clamp (8), and a chuck (9) with silicone material. The cylinder mounting cover (1) is equipped with a crank cylinder (2). The crank cylinder (2) is connected to the rotating shaft (6) through the crank (3) and the rotary bearing (4). The rotating shaft (6) passes through the square tube (5) and is connected to the crossbar of the clamp (8). The balance cylinder (7) is installed above the crossbar. The end of the balance cylinder (7) is connected to the tail of the clamp (8). The head of the clamp (8) is equipped with a chuck (9) with silicone material.

2. The automatic adjusting gripper for aluminum shell plasma cleaning according to claim 1, characterized in that, The clamping arms on both sides of the clamp (8) are hinged to the two ends of the crossbar.

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