Detection tool for testing welding thrust of adapter plate

By designing a welding thrust test fixture for adapter plates, the problem of inconsistent welding of power battery adapter plates was solved, ensuring the reliability of welding and the safety of lithium batteries.

CN223977086UActive Publication Date: 2026-03-06宁德聚能动力电源系统技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing technologies cannot effectively guarantee the welding consistency of power battery adapter pieces, which affects the discharge and safety performance of lithium batteries.

Method used

Design a welding thrust test fixture for adapter pieces, including an adapter piece fixing seat, an adapter piece limiting groove, a pressure plate and a pressure punch. The pressure punch is used to perform thrust testing on the pole post to ensure the consistency of welding.

Benefits of technology

The reliability and consistency testing of the adapter welding was achieved, which improved the safety performance and discharge stability of lithium batteries.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adapter sheet welding thrust testing fixture, and relates to a welding thrust testing fixture. Comprising an adapter sheet fixing seat, an adapter sheet limiting groove, a pressing plate and a pressing punching needle, the adapter sheet fixing seat is provided with the adapter sheet limiting groove, a finger position receding groove and a pole falling-off groove, the pressing plate is pressed on an adapter sheet on the adapter sheet limiting groove, a pole on the adapter sheet is matched with the pressing punching needle, and the pole falling-off groove is formed below the pole. According to the utility model, the structure design is reasonable, the thrust test is carried out on the welded adapter sheets according to batches through the test tool, and the welding consistency is ensured.
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Description

Technical Field

[0001] This utility model relates to a welding thrust testing fixture, specifically a welding thrust testing fixture for an adapter piece. Background Technology

[0002] The main function of the adapter plate in a power battery is to connect the power battery to other components or circuits, ensuring smooth current transmission and rationally distributing the current output by the battery so that each part can receive the required electrical energy, which helps reduce battery failures and safety hazards. Generally, the adapter plate consists of two parts: a substrate and an electrode post. The substrate and the electrode post are laser-welded to form a complete adapter plate. The weld depth and width of the adapter plate after laser welding will affect the pull-out force between the substrate and the electrode post. If the pull-out force is too small, it will directly affect the discharge and safety performance of the lithium battery. In order to ensure the reliability of the welding between the substrate and the electrode post, this utility model designs an adapter plate welding thrust test fixture. Through this fixture, the welded adapter plates are tested for thrust in batches to ensure the consistency of the welding. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a welding thrust test fixture for adapter pieces. The fixture has a reasonable structural design and allows for batch-by-batch thrust testing of welded adapter pieces, ensuring the consistency of the welding process.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a welding thrust test fixture for a transition piece, comprising a transition piece fixing seat, a transition piece limiting groove, a pressure plate, and a pressure punch. The transition piece fixing seat is provided with a transition piece limiting groove, a finger position clearance groove, and a pole post detachment groove. The pressure plate is pressed on the transition piece in the transition piece limiting groove. The pole post on the transition piece cooperates with the pressure punch. The pole post detachment groove is located below the pole post.

[0005] Preferably, the pressure-applying punch has a contoured conical structure.

[0006] Preferably, the periphery of the pole is welded to the substrate of the adapter plate.

[0007] Preferably, the pressure plate is locked onto the adapter plate fixing seat by a nut.

[0008] The beneficial effects of this utility model are: the structure of this utility model is reasonable. By applying pressure to the electrode plate with a pressure punch, it can completely detach it from the substrate for thrust testing, ensuring the consistency of welding. The test is convenient, reliable and practical. Attached Figure Description

[0009] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of another orientation of the present invention;

[0012] Figure 3 This is an exploded view of the present invention. Detailed Implementation

[0013] 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.

[0014] Reference Figure 1-3 The specific embodiment adopts the following technical solution: a welding thrust test fixture for a transition piece, including a transition piece fixing seat 1, a transition piece limiting groove 2, a pressure plate 3, and a pressure punch 4. The transition piece fixing seat 1 is provided with a transition piece limiting groove 2, a finger position clearance groove 5, and a pole post detachment groove 6. The pressure plate 3 is pressed on the transition piece 7 on the transition piece limiting groove 2. The pole post 71 on the transition piece 7 cooperates with the pressure punch 4. The pole post 71 is located below the pole post 71 and the pole post detachment groove 6 is below it.

[0015] It is worth noting that the pressure-applying punch 4 has a contoured conical structure.

[0016] It is worth noting that the pole post 71 is welded to the substrate 72 of the adapter piece 7 around its perimeter.

[0017] In addition, the pressure plate 3 is locked onto the adapter plate fixing seat 1 by a nut.

[0018] In this specific embodiment, the adapter plate fixing seat is provided with an adapter plate limiting groove, a finger position clearance groove (for easy handling), and a pole post detachment groove. The pressure punch adopts a contoured conical design.

[0019] The specific operation method of the test fixture in this embodiment is as follows: place the welded adapter piece on the limiting groove of the adapter piece fixing seat, lock the pressure plate, and slowly apply pressure to the pole piece by applying pressure with a pressure punch. When the substrate and the pole piece are completely separated, the pressure recorded by the pressure sensor on the punch is used to determine whether the welding is good.

[0020] The pressure plate in this specific embodiment is to prevent the adapter plate from shaking. After the thrust test is completed, the pole piece falls off the pole piece detachment groove on the adapter plate fixing seat 1. This gauge detects the thrust by applying pressure to the pole piece to completely detach it from the base plate of the adapter plate, thereby ensuring the consistency of the welding.

[0021] 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 adapter plate weld push test fixture, comprising: It includes adapter fixing seat (1), adapter limiting groove (2), pressing plate (3) and pressing punch (4), adapter fixing seat (1) is provided with adapter limiting groove (2), finger position clearance groove (5) and pole post falling groove (6), adapter (7) on adapter limiting groove (2) is pressed with pressing plate (3), pole post (71) on adapter (7) is matched with pressing punch (4), and pole post (71) below is pole post falling groove (6).

2. The adapter plate welding push test gauge of claim 1, wherein, The pressing punch (4) is a profiled conical structure.

3. The adapter plate welding push test fixture of claim 1, wherein, The pole post (71) is welded with the base plate (72) of the adapter (7) around.

4. The adapter plate welding push test fixture of claim 1, wherein, The pressing plate (3) is locked on the adapter fixing seat (1) through a nut.