Lithium battery welding process inspection tool

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a lithium battery welding process inspection tool which comprises an upper cover and further comprises a base arranged at the bottom of the upper cover. The test assembly is arranged in the base, the test assembly comprises a spring arranged in the base, one end of the spring is provided with a moving block, the base is internally provided with a speed reduction block, and the base is internally provided with a push rod; according to the utility model, the test assembly is arranged, and a deceleration and limiting two-in-one structure is added, so that the actual applied force of the inspection tool is prevented from exceeding the inspection standard range, and the quality risk is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, specifically to a lithium battery welding process inspection fixture. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. They primarily rely on the movement of lithium ions between the positive and negative electrodes to store and release energy. Traditionally, lithium-ion batteries used lithium metal or lithium alloy as the negative electrode. However, for safety and performance reasons, modern lithium-ion batteries typically use graphite or other carbon materials as the negative electrode. These materials can reversibly insert and extract lithium ions. There are various choices for positive electrode materials, including lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, and nickel-cobalt-manganese ternary materials. These materials can reversibly release and accept lithium ions during charging and discharging.

[0003] Currently, the production process of lithium batteries requires the welding of metal wires. The welding of metal wires (aluminum, copper, gold, silver, etc.) requires high precision, is complex, and is costly. Welding strength must be tested quickly after welding. The testing requirements vary depending on the specifications of the metal wires. Some welding strength testing equipment needs to be customized for different specifications and types of metal wires, which leads to high testing costs. Utility Model Content

[0004] The purpose of this utility model is to provide a lithium battery welding process inspection fixture to solve the problem that the inspection equipment needs to be customized after the lithium battery metal wire welding is completed, resulting in high inspection costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery welding process inspection fixture, including a top cover, and further comprising:

[0006] The base is located at the bottom of the top cover;

[0007] The test component is located inside the base. The test component includes a spring located inside the base, a moving block located at one end of the spring, a deceleration block located inside the base, and a push rod located inside the base.

[0008] Preferably, one end of the push rod is fixedly connected to a top block, and the base has a limiting groove inside that cooperates with the push rod. The inner wall of the limiting groove is slidably connected to the outer side of the push rod.

[0009] Preferably, the base has a groove inside that works with the top block, the inner wall of the groove is slidably connected to the outer side of the top block, and one side of the inner wall of the groove is fixedly connected to one side of the deceleration block.

[0010] Preferably, a connecting plate is fixedly connected to the side of the top block away from the push rod, and the end of the connecting plate away from the top block is fixedly connected to one side of the moving block.

[0011] Preferably, the base has an internal placement groove for use with the movable block, and the inner wall of the placement groove is slidably connected to the outer side of the movable block.

[0012] Preferably, the upper cover has a first screw hole inside, and a screw is installed inside the first screw hole. The base has a second screw hole inside, which is used to cooperate with the screw. The number of screws is set to four.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the setting of a testing component, requires the selection of corresponding springs based on the mechanical testing range of different welding materials. By applying force to the push rod, the top block drives the connecting plate to move. When the connecting plate moves, it drives the moving block to move, thereby compressing the spring. When the mechanical testing of the material approaches the upper limit, the push rod will squeeze the deceleration block, thereby reducing the speed of the push rod. When the deceleration block can no longer be compressed, the upper limit of the welding material can be detected. At the same time, under the action of the deceleration block, direct hard contact between the push rod and the inner wall of the limiting groove can be prevented, preventing the pushing force from exceeding the standard upper limit of the welding material and causing inspection errors. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the lithium battery welding process inspection fixture provided by this utility model;

[0016] Figure 2 A schematic diagram of the test component structure provided by this utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the screw and the top cover structure provided by this utility model;

[0018] Figure 4 A schematic diagram of the working upper limit state provided by this utility model.

[0019] In the diagram: 1. Top cover; 2. Base; 3. Test assembly; 301. Spring; 302. Moving block; 303. Deceleration block; 304. Push rod; 4. Top block; 5. Connecting plate; 6. Placement slot; 7. Slide groove; 8. Limiting slot; 9. First screw hole; 10. Screw; 11. Second screw hole. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 As shown, a lithium battery welding process inspection fixture includes an upper cover 1. The upper cover 1 protects the device, preventing the push rod 304 and the moving block 302 from detaching from the base 2 during movement. The fixture also includes a base 2 located at the bottom of the upper cover 1. The base 2 allows the push rod 304 and the moving block 302 to move, thus testing the strength of the welding material. A testing component 3 is located inside the base 2. This component allows for testing the strength of the welding material. The testing component 3 includes a spring 301 located inside the base 2. The spring 301 can be adjusted for different welding materials. 301 is replaced to test welding materials of different specifications and materials. One end of spring 301 is provided with a moving block 302. By setting the moving block 302, when the push rod 304 moves, the moving block 302 can slide inside the placement groove 6, thereby compressing the spring 301. The base 2 is provided with a deceleration block 303. By setting the deceleration block 303, when the top block 4 moves to the designated position, the deceleration block 303 can reduce the movement speed of the top block 4, thereby preventing the inspection intensity from being too high and causing inspection errors. The base 2 is provided with a push rod 304. By setting the push rod 304, when testing the strength of welding materials, the top block 4 and the moving block 302 can be moved by pushing the push rod 304.

[0022] refer to Figure 2 and Figure 3 As shown, a top block 4 is fixedly connected to one end of the push rod 304. By setting the top block 4, when the push rod 304 moves, it can drive the top block 4 to move inside the slide groove 7, thereby causing the moving block 302 to move. The base 2 has a limiting groove 8 that works with the push rod 304. By setting the limiting groove 8, the push rod 304 can be prevented from arbitrarily leaving the inside of the limiting groove 8 when it moves, so that the inspection operation can be completed smoothly. The inner wall of the limiting groove 8 is slidably connected to the outer side of the push rod 304.

[0023] The base 2 has a sliding groove 7 inside that works with the top block 4. By setting the sliding groove 7, the top block 4 can move under the action of the push rod 304, so that the top block 4 can remain stable inside the sliding groove 7 when it moves. The inner wall of the sliding groove 7 is slidably connected to the outer side of the top block 4. One side of the inner wall of the sliding groove 7 is fixedly connected to one side of the deceleration block 303. By setting the deceleration block 303, the push rod 304 can be prevented from directly contacting the inner wall of the limiting groove 8, thereby preventing the thrust from exceeding the upper limit of the welding material standard.

[0024] A connecting plate 5 is fixedly connected to the side of the top block 4 away from the push rod 304. By setting the connecting plate 5, when the push rod 304 moves, the top block 4 can be driven to move through the connecting plate 5, thereby compressing the spring 301. The end of the connecting plate 5 away from the top block 4 is fixedly connected to the side of the moving block 302. By setting the connecting plate 5 and the moving block 302, the moving block 302 can slide inside the placement groove 6 under the action of the connecting plate 5 and the moving block 302, thereby compressing or stretching the spring 301.

[0025] The base 2 has a placement groove 6 inside that works with the movable block 302. The placement groove 6 makes it easy for workers to place the spring 301 and also facilitates the inspection of the strength of the welding material. The inner wall of the placement groove 6 is slidably connected to the outer side of the movable block 302. By setting the movable block 302 and the placement groove 6, the movement of the movable block 302 can be kept stable when it slides inside the placement groove 6, so that the movable block 302 can compress and stretch the spring 301.

[0026] The upper cover 1 has a first screw hole 9 inside, and a screw 10 is installed inside the first screw hole 9. By setting the screw 10 and the first screw hole 9, the screw 10 is rotated, which causes the screw 10 to enter the first screw hole 9 and the second screw hole 11. This allows the screw 10 to position the upper cover 1 and the base 2, thereby making the upper cover 1 and the base 2 stably connected. The base 2 has a second screw hole 11 inside, which is used to cooperate with the screw 10. The number of screws 10 is set to four.

[0027] Working Principle: When staff need to perform strength testing on welding materials required for lithium batteries, they first select the corresponding spring 301 according to the mechanical testing range of different welding materials. Then, the spring 301 is placed in the designated position inside the placement groove 6. When testing the strength of the welding materials, the push rod 304 is subjected to force, and the movement of the push rod 304 can drive the top block 4 to move. When the top block 4 moves, it can drive the moving block 302 to slide inside the placement groove 6 through the connecting plate 5. When the moving block 302 moves, the spring 301 can be compressed, thus compressing the spring 301 into the testing standard range. When it approaches the upper limit of the welding material standard, the push rod 304 drives the top block 4 to squeeze the deceleration block 303, and the speed decreases. When the deceleration block 303 can no longer be compressed, the upper limit of the standard is reached. Under the action of the deceleration block 303, the push rod 304 can be prevented from making direct hard contact with the base 2, thus preventing the pushing force from exceeding the upper limit of the standard and causing testing errors. This makes it easier for staff to perform strength testing on welding materials of different materials and specifications, improving testing efficiency and reducing testing costs. In addition, staff can use this device to perform tensile testing on welding materials.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery welding process inspection tool comprising an upper cover (1), characterized in that, Also include: The base (2) is arranged at the bottom of the upper cover (1); The test assembly (3) is arranged in the base (2), the test assembly (3) includes a spring (301) arranged in the base (2), one end of the spring (301) is provided with a moving block (302), the inside of the base (2) is provided with a deceleration block (303), the inside of the base (2) is provided with a push rod (304).

2. A lithium battery welding process inspection tooling according to claim 1, characterized in that: One end of the push rod (304) is fixedly connected with the top block (4), the inside of the base (2) is provided with a limiting groove (8) matched with the push rod (304), the inner wall of the limiting groove (8) is slidably connected with the outer side of the push rod (304).

3. A lithium battery welding process inspection tooling according to claim 2, characterized in that: The inside of the base (2) is provided with a sliding groove (7) matched with the top block (4), the inner wall of the sliding groove (7) is slidably connected with the outer side of the top block (4), one side of the inner wall of the sliding groove (7) is fixedly connected with one side of the deceleration block (303).

4. The process verification tooling for welding lithium batteries of claim 2, wherein: The side, away from the push rod (304), of the top block (4) is fixedly connected with the connecting plate (5), one end, away from the top block (4), of the connecting plate (5) is fixedly connected with one side of the moving block (302).

5. The process verification tooling for lithium battery welding according to claim 1, wherein: The inside of the base (2) is provided with a placing groove (6) matched with the moving block (302), the inner wall of the placing groove (6) is slidably connected with the outer side of the moving block (302).

6. A lithium battery welding process inspection tooling according to claim 1, characterized in that: The inside of the upper cover (1) is provided with a first screw hole (9), the inside of the first screw hole (9) is provided with a screw (10), the inside of the base (2) is provided with a second screw hole (11) matched with the screw (10), the number of the screw (10) is four.

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