Modular battery case automatic welding device

Abstract

The utility model discloses a kind of modularization battery shell automatic welding devices, the modularization battery shell automatic welding device includes: workbench, the workbench upper portion is provided with the welding mechanism for welding battery shell. The present application overcomes that traditional clamping device often relies on two pneumatic / hydraulic straight push or simple lever, uneven stress or slip when clamping battery shell, need to be controlled by control unit to control pneumatic / hydraulic straight push synchronously, to ensure the clamping effect of battery shell, for realizing the accurate synchronous control of two independent cylinder, high-precision proportional / servo valve, position sensor and complex synchronous control algorithm encoder must be equipped, which greatly increases the electrical complexity of system, hardware cost and software development / maintenance difficulty, for the occasion needing multi-station or multi-degree-of-freedom clamping, cost and control complexity is exponential growth. To provide a kind of modularization battery shell automatic welding device.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to an automatic welding device for modular battery casings. Background Technology

[0002] Against the backdrop of the rapid development of the new energy industry, batteries, as core energy storage components, are facing increasingly stringent requirements for automation and precision in their manufacturing. Welding of modular battery casings, a crucial step in battery assembly, directly affects the battery's sealing, safety, and lifespan. Traditional manual welding methods are no longer sufficient to meet the demands of large-scale, high-precision production. Therefore, automated welding equipment for modular battery casings has become a key focus of industry research and development, aiming to improve welding efficiency and quality stability through automation technology.

[0003] Traditional clamping devices often rely on two pneumatic / hydraulic direct pushers or simple levers, which can easily lead to uneven force or slippage when clamping the battery casing. It is necessary to control the pneumatic / hydraulic direct pushers synchronously through a control unit to ensure the clamping effect on the battery casing. To achieve precise synchronous control of two independent cylinders, high-precision proportional / servo valves, position sensors, and complex synchronous control algorithm encoders must be equipped. This greatly increases the electrical complexity, hardware cost, and software development / maintenance difficulty of the system. For applications requiring multi-station or multi-degree-of-freedom clamping, the cost and control complexity increase exponentially.

[0004] Therefore, providing an automatic welding device for modular battery casings is a problem that this utility model urgently needs to solve. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this invention is to overcome the shortcomings of traditional clamping devices that often rely on two pneumatic / hydraulic direct pushers or simple levers. These devices are prone to uneven force distribution or slippage when clamping battery casings, requiring synchronous control of the pneumatic / hydraulic pushers via a control unit to ensure effective clamping. Achieving precise synchronous control of two independent cylinders necessitates high-precision proportional / servo valves, position sensors, and complex synchronous control algorithms and encoders. This significantly increases the system's electrical complexity, hardware cost, and software development / maintenance difficulty. For applications requiring multi-station or multi-degree-of-freedom clamping, the cost and control complexity increase exponentially. Therefore, this invention provides a modular automatic battery casing welding device.

[0006] To achieve the above objectives, this utility model provides an automatic modular battery casing welding device, comprising: a worktable, on which a welding mechanism for welding battery casings is disposed; a support platform, which is horizontally disposed inside the worktable and has a gear rotatably disposed in its center; a movable platform, on which movable platforms are disposed at opposite ends of the support platform and are movable towards each other, each movable platform having a rack along its moving direction that meshes with the sides of the gear; clamping plates, on which clamping plates adapted to the battery casing are vertically disposed above each movable platform; and an electric push rod, which is disposed below the support platform and is capable of driving any movable platform to reciprocate.

[0007] Preferably, the support platform is provided with several guide columns that run horizontally through each mobile platform along the direction of movement of the mobile platform.

[0008] Preferably, each movable platform is provided with a first limiting groove capable of limiting the rack.

[0009] Preferably, the welding mechanism includes: a quick-release structure; a connecting cylinder and a welding head, wherein the welding head is detachably disposed inside the connecting cylinder via the quick-release structure.

[0010] Preferably, the quick-release structure includes: a connecting shaft, which is coaxially disposed at the upper end of the welding head and has a fixing block disposed around its periphery; a fixing ring, which is coaxially disposed at the opening of the connecting cylinder, and has a fixing ring groove and a release groove that are adapted to the fixing block; and an elastic element, which is coaxially disposed inside the connecting cylinder.

[0011] Preferably, the quick-release structure further includes a limiting rod and a pushing column. The pushing column is coaxially provided at the upper end of the connecting shaft, and a second limiting groove is provided through one side of the connecting cylinder. The limiting rod can be detachably provided on one side of the pushing column through the second limiting groove.

[0012] According to the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: This application places the battery casing between each clamping plate, and then starts the electric push rod to drive any one of the moving platforms to move, thereby driving the gear to rotate through the rack, so as to drive the relative movement of the rack on the other moving platform, thereby driving each clamping plate to move relative to each other, so as to achieve clamping of the battery casing. This driving method only requires one electric push rod to achieve synchronous movement of two clamping plates, without the need for additional encoders or sensors, reducing the complexity and cost of the control system.

[0013] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of a modular battery casing automatic welding device provided in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the clamping plate portion of the modular battery casing automatic welding device provided in a preferred embodiment of this utility model; Figure 3 This is a schematic diagram of the workbench structure of a modular battery casing automatic welding device provided in a preferred embodiment of this utility model. Figure 4 This is a schematic diagram of the gear part structure of the modular battery casing automatic welding device provided in a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the welding mechanism of a modular battery casing automatic welding device provided in a preferred embodiment of the present invention. Figure 6 This is an exploded view of the welding mechanism of the modular battery casing automatic welding device provided in a preferred embodiment of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 1-Worktable; 8-Support platform; 16-Gear; 10-Guide column; 17-First limiting groove; 14-Moving platform; 15-Rack; 6-Clamping plate; 7-Electric push rod; 18-Connecting cylinder; 19-Welding head; 2-Connecting shaft; 21-Fixing ring; 22-Fixing block; 23-Second limiting groove; 24-Limiting rod; 25-Elastic element; 26-Push column; 27-Fixing ring groove; 28-Release groove; Detailed Implementation The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0016] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the utility model product is in use. These are merely for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first," "second," and "third," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance. Additionally, the terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0017] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0019] Reference Figures 1-4 An automatic modular battery casing welding device includes: a workbench 1, with a welding mechanism for welding battery casings mounted on top of the workbench 1; a support platform 8, horizontally positioned inside the workbench 1, with a gear 16 rotatably mounted in its center; a movable platform 14, movable platforms 14 are mounted at opposite ends of the support platform 8, each movable platform 14 having racks 15 along its moving direction that mesh with the sides of the gear 16; clamping plates 6, vertically mounted above each movable platform 14 and adapted to the battery casing; and an electric push rod 7, positioned below the support platform 8 and capable of driving any movable platform 14 to reciprocate.

[0020] This application places the battery casing between each clamping plate 6, and then activates the electric push rod 7 to drive any one of the moving stages 14 to move, thereby driving the gear 16 to rotate through the rack 15, so as to drive the relative movement of the rack 15 on the other moving stage 14, thereby driving the relative movement of each clamping plate 6 to achieve clamping of the battery casing. This driving method only requires one electric push rod 7 to achieve synchronous movement of two clamping plates 6, without the need for additional encoders or sensors, reducing the complexity and cost of the control system.

[0021] The support platform 8 is provided with several guide columns 10 that run horizontally through each mobile platform 14 along the moving direction of the mobile platform 14.

[0022] This application uses guide posts 10 to ensure that the movement path of each mobile station 14 is fixed and will not deviate.

[0023] Each moving stage 14 is provided with a first limiting groove 17 that can limit the movement of the rack 15.

[0024] In this application, the rack 15 on each moving stage 14 is set to pass through the first limiting groove 17 on the other moving stage 14 to ensure that the rack 15 meshes with the gear 16, thereby ensuring that the two clamping plates 6 can move synchronously.

[0025] Reference Figures 5-6 The welding mechanism includes: a quick-release structure; a connecting cylinder 18 and a welding head 19, wherein the welding head 19 is detachably disposed inside the connecting cylinder 18 via the quick-release structure.

[0026] The quick-release structure includes: a connecting shaft 2, which is coaxially disposed on the upper end of the welding head 19 and has a fixing block 22 disposed on its periphery; a fixing ring 21, which is coaxially disposed at the opening of the connecting cylinder 18, and the fixing ring 21 has a fixing ring 21 groove adapted to the fixing block 22 and a release groove 28 disposed inside the fixing ring 21; and an elastic element 25, which is coaxially disposed inside the connecting cylinder 18.

[0027] The quick-release structure also includes a limiting rod 24 and a pushing column 26. The pushing column 26 is coaxially arranged at the upper end of the connecting shaft 2. A second limiting groove 23 is provided through one side of the connecting cylinder 18. The limiting rod 24 can be detachably arranged on one side of the pushing column 26 through the second limiting groove 23.

[0028] This application achieves quick disassembly of the welding head 19 by removing the limiting rod 24 and then rotating the welding head 19 until the fixing block 22 rotates to the release groove 28. At this time, the elastic element 25 pushes out the entire welding head 19. Then, by aligning the fixing block 22 with the release groove 28 and inserting it into the fixing ring 21, and then rotating the welding head 19, the fixing block 22 is locked into the groove of the fixing ring 21. Finally, the limiting rod 24 is installed on one side of the push column 26 through the second limiting groove 23, thereby achieving quick installation of the welding head 19.

[0029] When using the device provided by this utility model, the battery casing is placed between each clamping plate 6, and then the electric push rod 7 is activated to drive any one of the moving stages 14 to move. This drives the gear 16 to rotate through the rack 15, which in turn drives the rack 15 on the other moving stage 14 to move relative to it. This, in turn, drives each clamping plate 6 to move relative to each other, thereby clamping the battery casing. This driving method only requires one electric push rod 7 to achieve synchronous movement of two clamping plates 6, without the need for additional encoders or sensors, thus reducing the complexity and cost of the control system.

[0030] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0031] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0032] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A modular battery case automatic welding apparatus, characterized by: The modular battery casing automatic welding device includes: A workbench (1) is provided above the workbench (1) with a welding mechanism for welding the battery casing; Support platform (8), which is horizontally arranged inside the workbench (1), and a gear (16) is rotatably arranged in the middle therein. The support platform (8) is provided with a movable platform (14) at its two opposite ends, and each movable platform (14) is provided with a rack (15) that meshes with both sides of the gear (16) along its moving direction. Clamping plate (6), each moving platform (14) is vertically provided with clamping plate (6) adapted to the battery casing. An electric push rod (7) is located below the support platform (8) and can drive any moving platform (14) to move back and forth.

2. The modular battery case automatic welding apparatus according to claim 1, wherein The support platform (8) is provided with several guide columns (10) that run horizontally through each mobile platform (14) along the moving direction of the mobile platform (14).

3. The modular battery case automatic welding apparatus according to claim 1, wherein Each mobile station (14) is provided with a first limiting groove (17) that can limit the rack (15).

4. The modular battery case automatic welding apparatus according to claim 1, wherein The welding mechanism includes: Quick-release structure; The connecting cylinder (18) and the welding head (19) are detachably disposed inside the connecting cylinder (18) by means of a quick-release structure.

5. The modular battery casing automatic welding device according to claim 4, characterized in that, The quick-release structure includes: Connecting shaft (2), the connecting shaft (2) is coaxially arranged on the upper end of the welding head (19), and a fixing block (22) is provided on its periphery; A fixing ring (21) is coaxially provided at the opening of the connecting cylinder (18). The fixing ring (21) is provided with a fixing ring (21) groove and a release groove (28) that are adapted to the fixing block (22). Elastic element (25): The elastic element (25) is coaxially arranged inside the connecting cylinder (18).

6. The modular battery casing automatic welding device according to claim 5, characterized in that, The quick-release structure also includes: The limiting rod (24) and the pushing column (26) are provided. The pushing column (26) is coaxially provided on the upper end of the connecting shaft (2). The second limiting groove (23) is provided through one side of the connecting cylinder (18). The limiting rod (24) can be detachably provided on one side of the pushing column (26) through the second limiting groove (23).

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