An automobile part sealing test tool

By designing a detachable mounting base and an automatic centering clamping mechanism, the problems of poor versatility and inaccurate positioning of existing tooling are solved, enabling rapid replacement and accurate positioning, and improving testing efficiency and accuracy.

CN224681733UActive Publication Date: 2026-08-25SHENZHEN LAIENTE AUTOMATION TECH CO LTD
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Patent Information

Application Number
CN202522364412.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-07
Publication Date
2026-08-25
Estimated Expiration
2035-11-07

AI Technical Summary

Technical Problem

Existing automotive parts sealing test fixtures have a fixed structure and poor versatility, resulting in cumbersome replacement, low efficiency, and inaccurate positioning, which affects test results.

Method used

A test fixture including a detachable mounting base and a mounting and fixing mechanism was designed. It uses a first push block, an arc-shaped locking block and a first spring to achieve quick locking and unlocking. Combined with a second push block, a second spring and a synchronous ring elastic guide clamp for automatic centering and clamping, it can achieve quick replacement and accurate positioning.

Benefits of technology

It improves the versatility of tooling, simplifies the operation process, shortens the changeover time, and enhances testing efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile parts detection, disclose a kind of automobile parts sealing property test tool, the tool includes fixed pedestal and detachably connected mounting pedestal, fixed pedestal is equipped with mounting mechanism, the mounting mechanism includes first push block, arc clamping block and first spring, by pressing first push block can make arc clamping block and the buckle of mounting pedestal bottom separate, the quick replacement of mounting pedestal is realized.Setting up fixed mechanism on mounting pedestal, the fixed mechanism includes second push block, elastic guide clamp, second spring and synchronous ring, by pulling second push block can make elastic guide clamp open, after hand release, it can be realized automatic centering clamping to the measured part.The utility model is through the quick replacement and positioning design of double layer level, solve the existing tool structure fixed, poor versatility, replacement positioning cumbersome problem, with convenient operation, strong versatility, positioning accurate and reliable, the effect of significantly improving test efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, and in particular to a tooling for testing the sealing performance of automotive parts. Background Technology

[0002] In the automobile manufacturing process, many components, such as valve bodies, housings, and pipelines, have strict requirements for their sealing performance. To ensure product quality, sealing tests on these components before they leave the factory are an essential step. During sealing tests, specialized testing fixtures are typically used to quickly and reliably position and clamp the components under test to ensure that the test interface can precisely align with the components.

[0003] However, automotive parts are diverse, varying in size, shape, and interface location. Most existing testing fixtures are dedicated to specific parts models, and their fixed structure results in poor versatility. When different parts need to be tested on the production line, the entire fixture must be removed from the testing equipment and replaced with a new, matching fixture. This replacement process is not only cumbersome and time-consuming but may also require recalibration, severely impacting the continuity and efficiency of production and testing. Furthermore, to accommodate all tested parts, companies need to design, manufacture, and store large quantities of dedicated fixtures, significantly increasing production costs and management burden. Additionally, some fixtures still require manual alignment when clamping parts, which can easily lead to positioning errors affecting the accuracy of test results. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a sealing test fixture for automotive parts, aiming to improve the problems of cumbersome operation and low positioning accuracy when changing to test different parts. This utility model aims to provide a structurally improved sealing test fixture for automotive parts that can effectively solve the above problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sealing performance testing fixture for automotive parts, comprising: a fixed base, and a mounting base detachably mounted on the fixed base; and a mounting mechanism disposed on the fixed base and a fixing mechanism disposed on the mounting base.

[0006] The installation mechanism includes a first push block, an arc-shaped locking block, and a first spring that are slidably connected to a fixed base. The installation base is provided with a buckle that engages with the arc-shaped locking block.

[0007] Furthermore, the fixing mechanism includes a second push block, an elastic guide clamp, and a second spring. The elastic guide clamp is located inside the mounting base and is linked with the second push block. The mounting mechanism and the fixing mechanism are combined through a detachable connection between the mounting base and the fixing base to achieve quick replacement and clamping of different components.

[0008] Preferably, the installation mechanism further includes a limiting guide rod, one end of which is fixed to the fixed base, and the other end of which passes through the first push block to guide the movement of the first push block.

[0009] Preferably, the arc-shaped locking block has an arc-shaped surface for smooth engagement or disengagement with the buckle.

[0010] Preferably, the first push block and the arc-shaped locking block are fixedly connected.

[0011] Preferably, the mounting base has a fixing ring and a synchronizing ring inside, and the second spring is located between the fixing ring and the synchronizing ring.

[0012] Preferably, the synchronization ring is sleeved on the elastic guide clamp and is used to constrain its synchronous movement when the elastic guide clamp moves.

[0013] Preferably, the second pusher block and the elastic guide clamp are fixedly connected.

[0014] Preferably, the automotive component sealing test fixture also includes a display and a switch for displaying test results and controlling the start and stop of the test program.

[0015] This utility model has the following beneficial effects: 1. In this utility model, by setting a quick-removable and replaceable mounting base, and using a mounting mechanism composed of a first push block, an arc-shaped locking block and a first spring to quickly lock and unlock the mounting base, the problem of fixed structure, poor versatility and cumbersome replacement of existing test fixtures leading to low efficiency is solved. The effect of improving the versatility of the fixture, simplifying operation, shortening replacement time and improving overall testing efficiency is achieved.

[0016] 2. This utility model solves the problems of inconvenient manual positioning, easy deviation, and impact on test accuracy of existing tooling by setting a fixing mechanism consisting of a second push block, a second spring, a synchronizing ring, and an elastic guide clamp in the mounting base. It utilizes the synergistic effect of the spring's restoring force and the synchronizing ring to automatically center and clamp the parts to be tested, thus achieving the effects of fast and accurate positioning, ensuring installation consistency, and improving test reliability. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural schematic diagram of a sealing performance testing fixture for automotive parts proposed in this utility model; Figure 2 This is a schematic diagram of the fixed base part of a sealing test fixture for automotive parts proposed in this utility model; Figure 3 This is a schematic diagram of the first pusher portion of a sealing performance testing fixture for automotive parts proposed in this utility model. Figure 4 This is a schematic diagram of the mounting base of a sealing test fixture for automotive parts proposed in this utility model.

[0018] Legend: 1. Display; 2. Switch; 3. Mounting mechanism; 301. Fixed base; 302. First push block; 303. Arc-shaped locking block; 304. First spring; 305. Limiting guide rod; 4. Fixing mechanism; 401. Mounting base; 402. Second push block; 403. Buckle; 404. Elastic guide clamp; 405. Second spring; 406. Fixing ring; 407. Synchronizing ring. Detailed Implementation

[0019] 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.

[0020] Please refer to Figures 1 to 4 This utility model provides a testing fixture for the sealing performance of automotive parts, which aims to solve the problems of existing testing fixtures having fixed structures, poor versatility, and cumbersome replacement.

[0021] like Figures 1 to 4 As shown, the automotive component sealing test fixture includes a fixed base 301 and a mounting base 401 detachably mounted on the fixed base 301. The fixed base 301 serves as the base platform of the entire fixture, and the mounting base 401 is used to accommodate the component to be tested. The fixture is also equipped with a display 1 for displaying test results and a switch 2 for controlling the start and stop of the test program. The fixed base 301 is equipped with a mounting mechanism 3 for locking or releasing the mounting base 401, and the mounting base 401 is equipped with a fixing mechanism 4 for clamping and fixing the component to be tested.

[0022] Please refer to the following carefully. Figure 2 and Figure 3The mounting mechanism 3 includes a first push block 302, an arc-shaped locking block 303, a first spring 304, and a limiting guide rod 305. The first push block 302 and the arc-shaped locking block 303 are fixedly connected. One end of the limiting guide rod 305 is fixed to the fixed base 301, and the other end passes through the first push block 302. This structure allows the first push block 302 and the arc-shaped locking block 303 to slide along the limiting guide rod 305 on the fixed base 301. The first spring 304 abuts against the fixed base 301 and the first push block 302. Meanwhile, a buckle 403 is correspondingly provided at the bottom of the mounting base 401. In the assembled state, the arc-shaped locking block 303 engages with the buckle 403 through its arc-shaped surface for smooth engagement or disengagement. This locking structure, consisting of the first push block 302, the arc-shaped locking block 303, and the first spring 304, together with the buckle 403 on the mounting base 401, ensures that the mounting base 401 can be quickly removed from the fixed base 301 or stably locked, thereby realizing the quick replacement of tooling.

[0023] As a preferred embodiment, please refer to Figure 4 To achieve stable clamping of the parts to be tested, a fixing ring 406 and a synchronizing ring 407 are provided inside the mounting base 401. A second spring 405 is located between the fixing ring 406 and the synchronizing ring 407. The synchronizing ring 407 is sleeved on the elastic guide clamp 404 and is used to constrain its synchronous movement when the elastic guide clamp 404 moves. The second push block 402 is fixedly connected to the elastic guide clamp 404.

[0024] As another preferred embodiment, please refer to Figure 2 and Figure 3 To ensure the stability of the installation mechanism 3, the first push block 302 and the arc-shaped locking block 303 are fixedly connected. At the same time, the installation mechanism 3 is provided with a limiting guide rod 305 for guiding the movement of the first push block 302. One end of the limiting guide rod 305 is fixed to the fixed base 301, and the other end passes through the first push block 302.

[0025] Working principle: When it is necessary to replace the mounting base 401 to accommodate test parts of different sizes, press the first push block 302 of the mounting mechanism 3. The first push block 302 drives the arc-shaped locking block 303 to move backward along the guide rod 305 and squeeze the first spring 304 until the arc-shaped surface of the arc-shaped locking block 303 disengages from the buckle 403 at the bottom of the mounting base 401. At this time, the mounting base 401 can be removed for replacement. After replacement, release the first push block 302, and the first spring 304 resets, driving the arc-shaped locking block 303 to re-engage and lock. 403; When it is necessary to fix the part to be tested, pull out the second push block 402 of the fixing mechanism 4. The second push block 402 drives the elastic guide clamp 404 to retract. The elastic guide clamp 404 squeezes the second spring 405 through the synchronous ring 407. After the part to be tested is placed into the mounting base 401, release the second push block 402. The second spring 405 resets and pushes the elastic guide clamp 404 to clamp the part to be tested evenly under the synergistic effect of the synchronous ring 407. After the part is fixed, press switch 2 to start the test. The test result is displayed on display 1.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing fixture for the sealing performance of automotive parts, comprising: A fixed base (301) and a mounting base (401) detachably mounted on the fixed base (301), the mounting base (401) being used to accommodate the component to be tested, characterized in that... The fixed base (301) is provided with an installation mechanism (3), the installation mechanism (3) includes a first push block (302) slidably connected to the fixed base (301), an arc-shaped locking block (303) linked with the first push block (302), and a first spring (304) abutting between the fixed base (301) and the first push block (302); the bottom of the installation base (401) is provided with a buckle (403) that engages with the arc-shaped locking block (303); The mounting base (401) is provided with a fixing mechanism (4). The fixing mechanism (4) includes a second push block (402) passing through the mounting base (401), an elastic guide clamp (404) located in the mounting base (401) and linked with the second push block (402), and a second spring (405) for providing a reset elastic force. The elastic guide clamp (404) is used to elastically fix the component to be tested.

2. The automotive component sealing test fixture according to claim 1, characterized in that: The installation mechanism (3) is provided with a limiting guide rod (305) for guiding the movement of the first push block (302). One end of the limiting guide rod (305) is fixed to the fixed base (301), and the other end passes through the first push block (302).

3. The automotive component sealing performance testing fixture according to claim 1, characterized in that: The arc-shaped locking block (303) has an arc-shaped surface for smoothly engaging or disengaging from the buckle (403).

4. The automotive component sealing performance testing fixture according to claim 1, characterized in that: The first push block (302) and the arc-shaped card block (303) are fixedly connected.

5. The automotive component sealing performance testing fixture according to claim 1, characterized in that: The mounting base (401) is provided with a fixing ring (406) and a synchronizing ring (407) inside; the second spring (405) is located between the fixing ring (406) and the synchronizing ring (407).

6. The automotive component sealing performance testing fixture according to claim 5, characterized in that: The synchronization ring (407) is sleeved on the elastic guide clamp (404) and is used to constrain the synchronous movement of the elastic guide clamp (404) when it moves.

7. The automotive component sealing performance testing fixture according to claim 1, characterized in that: The second push block (402) is fixedly connected to the elastic guide clamp (404).

8. The automotive component sealing performance testing fixture according to claim 1, characterized in that: The fixture is equipped with a display (1) and a switch (2). The switch (2) is used to control the start and stop of the test program, and the display (1) is used to display the test results.