Battery welding jig

Abstract

The utility model discloses a battery welding jig which comprises a base, a welding frame and limiting units, the base is provided with a loading groove, the limiting units are arranged on the two sides of the loading groove respectively, the welding frame is installed in the loading groove, the limiting units on the two sides limit the two sides of the welding frame respectively, and the welding frame comprises a bottom plate, a main body and a cover plate. The bottom of the main body is connected with the bottom plate, the cover plate is connected with the top of the main body so as to be closed or opened in an overturning mode relative to the main body, the main body is provided with a containing groove, and welding holes corresponding to the containing groove are formed in the bottom plate and the cover plate respectively. According to the battery welding jig, multi-face welding can be achieved by turning over the welding frame, the welding frame can be replaced according to the size and the shape of a battery, the adaptability of the jig is improved, meanwhile, during welding, a battery pack can be limited through the cover plate and the bottom plate, and the welding efficiency is improved. Therefore, the position deviation condition of the battery pack in the welding process is avoided, and the welding quality is ensured.

Description

A battery welding fixture Technical Field

[0001] This utility model relates to the field of battery welding technology, and in particular to a battery welding fixture. Background Technology

[0002] With the rapid development of new energy vehicles, energy storage systems, and portable electronic devices, lithium batteries, as important energy storage units, have been widely used. During the production of lithium batteries, they are welded together using connecting nickel sheets. Therefore, battery welding is a critical process that directly affects the overall performance and safety of the battery pack. To facilitate welding, the batteries are mounted in a fixture, which is then placed on welding equipment for welding.

[0003] However, most existing welding fixtures can only perform single-sided welding and cannot achieve multi-sided welding on the same welding equipment. In addition, during the welding process, due to the difference in resistance between the nickel sheet and the battery, the welding needle is prone to sticking during welding, which in turn moves the battery and causes the welding position to shift, resulting in the battery being scrapped. At the same time, the existing welding fixtures have poor adaptability and cannot weld batteries of different sizes and shapes. Therefore, it is urgent to improve the battery welding fixture to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a battery welding fixture that improves adaptability, enables multi-faceted welding, and ensures welding quality.

[0005] To solve the above technical problems, the present invention can be implemented using the following technical solutions:

[0006] A battery welding fixture includes a base, a welding frame, and limiting units. The base has a loading groove, and limiting units are respectively provided on both sides of the loading groove. The welding frame is installed in the loading groove, and the limiting units on both sides limit the two sides of the welding frame. The welding frame includes a bottom plate, a main body, and a cover plate. The bottom of the main body is connected to the bottom plate, and the cover plate is connected to the top of the main body to close or flip open relative to the main body. The main body is provided with a placement groove, and welding holes corresponding to the placement groove are respectively opened on the bottom plate and the cover plate.

[0007] In one embodiment, the sidewall of the main body is provided with a limiting space, and limiting steps are formed on both sides of the limiting space.

[0008] In one embodiment, the bottom of the base plate is provided with a welding clearance, and the welding holes of the base plate are opened at the welding clearance.

[0009] In one embodiment, the top of the cover plate is provided with a welding clearance groove, and the welding hole of the cover plate is opened at the welding clearance groove.

[0010] In one embodiment, the limiting unit includes a mounting block and a limiting block. The bottom of the mounting block is detachably disposed on the side of the base, and the limiting block is detachably connected to the top of the mounting block. The side of the limiting block can be placed in the limiting space to cooperate with the limiting step to limit the welding frame.

[0011] In one embodiment, the cover plate is hinged to the body via a hinge.

[0012] In one embodiment, the cover plate is provided with a magnetic element, and the main body is provided with a magnetic suction element corresponding to the magnetic element.

[0013] In one embodiment, a backrest is provided on the back side of the base.

[0014] In one embodiment, a fixing post is provided at the bottom of the base. Beneficial effects

[0015] This utility model relates to a battery welding fixture. The battery pack to be welded is placed inside a welding frame, which is then installed into a loading slot on a base. A limiting unit restricts the welding frame's position. During placement, the cover plate can face upwards, and welding is performed on the top of the battery pack through the welding holes in the cover plate. After welding the top of the battery pack, the welding frame can be flipped so that the bottom plate faces upwards, and welding is performed on the bottom of the battery pack through the welding holes in the bottom plate. This allows the fixture to perform multi-sided welding. Furthermore, the welding frame can be replaced according to the size and shape of the battery, thus improving the adaptability of the welding fixture. During welding, the cover plate and bottom plate restrict the battery pack's position, ensuring that the battery pack does not shift during welding and guaranteeing welding quality. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of the battery welding fixture of this utility model;

[0017] Figure 2 is a schematic diagram of the base structure of the battery welding fixture of this utility model;

[0018] Figure 3 is a schematic diagram of the welding frame structure of the battery welding fixture of this utility model;

[0019] Figure 4 is a schematic diagram of the welding frame structure of the battery welding fixture of this utility model.

[0020] As shown in the attached diagram:

[0021] 100. Base; 110. Loading slot; 120. Backing plate; 130. Fixing column;

[0022] 200. Welded frame; 210. Base plate; 211. Welding clearance hole; 220. Main body; 221. Placement groove; 222. Limiting space; 223. Limiting step; 224. Magnetic component; 230. Cover plate; 231. Welding clearance groove; 232. Magnetic component; 240. Welding hole;

[0023] 300, Limiting unit; 310, Mounting block; 320, Limiting block. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please refer to Figures 1 to 4. A battery welding fixture includes a base 100, a welding frame 200, and a limiting unit 300. The base 100 is provided with a loading groove 110, and limiting units 300 are respectively provided on both sides of the loading groove 110. The welding frame 200 is installed in the loading groove 110, and the limiting units 300 on both sides limit the two sides of the welding frame 200. The welding frame 200 includes a bottom plate 210, a main body 220, and a cover plate 230. The bottom of the main body 220 is connected to the bottom plate 210, and the cover plate 230 is connected to the top of the main body 220 so as to close or flip open relative to the main body 220. The main body 220 is provided with a placement groove 221, and welding holes 240 corresponding to the placement groove 221 are respectively opened on the bottom plate 210 and the cover plate 230.

[0028] Specifically, in this embodiment, the battery pack to be welded is placed in the placement slot 221 of the main body 220, and the cover plate 230 is closed to limit the battery pack. After the battery pack is placed, the welding frame 200 is installed in the loading slot 110 of the base 100. After installation, the two sides of the welding frame 200 can be limited by the limiting units 300 on both sides of the base 100. Finally, the base 100 and the welding frame 200 are placed on the platform of the welding equipment, and the welding equipment performs three-axis operation (the welding head of the welding equipment can move along the X and Z axes, and the platform can move along the Y axis) to achieve the welding between the nickel sheet and the battery pack. This welding equipment is existing equipment, so it will not be described in detail here. Regarding the welding frame 200... During installation, the cover plate 230 can be placed facing upwards first, and the top of the battery pack can be welded through the welding holes 240 of the cover plate 230. After the top of the battery pack is welded, the welding frame 200 can be flipped so that the bottom plate 210 faces upwards, and the bottom of the battery pack can be welded through the welding holes 240 of the bottom plate 210. This allows the fixture to achieve multi-face welding. The welding frame 200 is modularly designed and can be replaced according to the size and shape of the battery, thereby enabling welding of batteries of different sizes or shapes and improving the adaptability of the welding fixture. At the same time, the cover plate 230 and the bottom plate 210 can limit the position of the battery pack during welding to ensure that the battery pack does not shift during the welding process, thereby ensuring the welding quality.

[0029] To facilitate welding by allowing the welding head of the welding equipment to pass through the welding holes 240 of the cover plate 230 and the bottom plate 210, a welding clearance groove 231 is provided on the top of the cover plate 230, and the welding holes 240 of the cover plate 230 are opened at the welding clearance groove 231. A welding clearance position 211 is provided on the bottom of the bottom plate 210, and the welding holes 240 of the bottom plate 210 are opened at the welding clearance position 211. The welding clearance groove 231 allows the welding head of the welding equipment to easily extend into the welding holes 240 of the cover plate 230 to weld the top of the battery pack, while the welding clearance position 211 allows the welding head of the welding equipment to easily extend into the welding holes 240 of the bottom plate 210 to weld the bottom of the battery pack, thus making the welding of the battery pack convenient and reasonable.

[0030] In addition, to facilitate the closing or flipping of the cover plate 230 relative to the main body 220, the cover plate 230 can be hinged to the main body 220 via a hinge (not shown in the figure). At the same time, a magnetic element 232 is provided on the cover plate 230, and a magnetic suction element 224 corresponding to the magnetic element 232 is provided on the main body 220. The hinge can be used to easily close or open the cover plate 230. When the cover plate 230 is closed, the mutual magnetic attraction between the magnetic element 232 and the magnetic suction element 224 can make the cover plate 230 firmly close the main body 220, thereby preventing the battery pack in the placement slot 221 from shifting position during the welding process. The magnetic element 232 and the magnetic suction element 224 can be magnets.

[0031] Furthermore, in order to facilitate the installation of the welding frame 200 in the loading slot 110 of the base 100 and ensure its stability, a backing plate 120 is provided on the back side of the base 100. The backing plate 120 ensures that the welding frame 200 can be stably installed in the loading slot 110. At the same time, the fixing post 130 provided at the bottom of the base 100 allows the base 100 to be easily inserted into the platform of the welding equipment, so that the welding fixture can cooperate with the welding equipment, thereby facilitating the subsequent welding of the battery packs.

[0032] Please refer to Figures 1 and 2. In this embodiment, in order to limit the welding frame 200, a limiting space 222 is provided on the side wall of the main body 220, and limiting steps 223 are formed on both sides of the limiting space 222. The limiting unit 300 includes a mounting block 310 and a limiting block 320. The bottom of the mounting block 310 is detachably disposed on the side of the base 100, and the limiting block 320 is detachably connected to the top of the mounting block 310. The side of the limiting block 320 can be placed in the limiting space 222 to cooperate with the limiting steps 223 to limit the welding frame 200.

[0033] When the welding frame 200 is installed into the loading slot 110 of the base 100, the side of the limiting block 320 will be placed in the limiting space 222 of the side wall of the main body 220, and will cooperate with the limiting step 223 on one side of the limiting space 222 to limit the welding frame 200. When the welding frame 200 is flipped, the side wall of the limiting block 320 will cooperate with the limiting step 223 on the other side of the limiting space 222 to limit the welding frame 200. When welding frames 200 of different specifications are used, since the mounting block 310 can be detachably connected to the base 100 and the limiting block 320 respectively, the mounting block 310 can be replaced so that the height of the mounting block 310 matches the welding frames 200 of different specifications, thereby ensuring that the limiting block 320 can limit the welding frames 200 of different specifications. Finally, by disassembling and replacing the mounting block 310, the welding frames 200 of different specifications can be limited, thereby improving the adaptability of the welding fixture.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description; however, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model; furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A battery welding fixture, characterized in that: The device includes a base, a welding frame, and limiting units. The base has a loading groove, and limiting units are respectively set on both sides of the loading groove. The welding frame is installed in the loading groove, and the limiting units on both sides limit the two sides of the welding frame. The welding frame includes a bottom plate, a main body, and a cover plate. The bottom of the main body is connected to the bottom plate, and the cover plate is connected to the top of the main body to close or flip open relative to the main body. The main body is provided with a placement groove, and welding holes corresponding to the placement groove are respectively opened on the bottom plate and the cover plate.

2. The battery welding fixture according to claim 1, characterized in that: The main body has a limiting space on its side wall, and limiting steps are formed on both sides of the limiting space.

3. The battery welding fixture according to claim 1, characterized in that: The bottom of the base plate is provided with a welding clearance area, and the welding holes of the base plate are opened at the welding clearance area.

4. The battery welding fixture according to claim 1, characterized in that: The top of the cover plate is provided with a welding clearance groove, and the welding hole of the cover plate is opened at the welding clearance groove.

5. The battery welding fixture according to claim 2, characterized in that: The limiting unit includes a mounting block and a limiting block. The bottom of the mounting block is detachably disposed on the side of the base, and the limiting block is detachably connected to the top of the mounting block. The side of the limiting block can be placed in the limiting space to cooperate with the limiting step to limit the welding frame.

6. The battery welding fixture according to claim 1, characterized in that: The cover plate is hinged to the main body via a hinge.

7. The battery welding fixture according to claim 6, characterized in that: The cover plate is provided with a magnetic component, and the main body is provided with a magnetic suction component corresponding to the magnetic component.

8. The battery welding fixture according to claim 1, characterized in that: A backrest is provided on the back side of the base.

9. The battery welding fixture according to claim 1, characterized in that: The base is provided with a fixing post at its bottom.

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