Adaptive sealing test device applicable to multi-product special-shaped cavities

Abstract

The invention provides an adaptive sealing test device applicable to multi-product special-shaped cavities and belongs to the technical field of automobile plugging piece sealing performance test devices. The adaptive sealing test device comprises a device lower part which is mounted on a platform and a device upper part which is mounted on a fixing base. According to a test device in the prior art, the lower half part of the test device is arranged at a moving platform, so repeat match between the lower half part of the test device and the upper half part of the test device is poor, and therefore, problems such as high rejection rate, poor sealing effect of flat gaskets, incapability of testing products of which edge lines of mold cavity openings are too close to plugging opening ends, and poor reliability of the compatibility of multi-product shared testing can be brought about. In order to solve the above problems, adaptive special-shaped square cone sealing gaskets are matched with floating cone sealing rings, and therefore, reliable sealing testing of multiple products can be realized in a premise that the device is free of adjustment. With the adaptive sealing test device applicable to the multi-product special-shaped cavities adopted, repeated positioning precision errors of the device can be automatically compensated; a sealing effect is excellent; and rejection rate due to misjudgment can be greatly decreased. The adaptive sealing test device can test products that cannot be tested because the edge lines of the mold cavity openings of the products are too close to the plugging opening ends and can be generally applicable to testing of a plurality of types of products without adjustment required.

Description

technical field [0001] The invention belongs to the technical field of sealing test devices for automotive connectors, and in particular relates to a self-adaptive sealing test device for multi-product special-shaped cavities. Background technique [0002] At present, the test device for cavity tightness of automobile connectors basically adopts the form of a fixed flat gasket. [0003] The current method generally has the following problems: the lower part of the test device is on the moving platform, which has poor repeatability with the upper part of the test device, resulting in a large amount of leakage of test results and a high reject rate, and the poor sealing effect of the fixed flat gasket results in test results. The amount of leakage is large and the rejection rate is high. The flat gasket method cannot test products whose cavity edge is too close to the socket end. It is difficult to achieve reliable shared testing of multiple products, that is, poor compatibili...

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Problems solved by technology

[0003] The current method generally has the following problems: the lower part of the test device is on the moving platform, which has poor repeatability with the upper part of the test device, resulting in large leakage of test results and high rejection rate, and poor sealing effect of fixed flat gaskets resulting in test results The amount of leakage is large and the rejection rate is high. The flat gasket method cannot test the products whose distance between the edge of the cavity and the socket end is too close. It is difficult to achieve reliable shared testing of multiple products, that is, poor compatibility.

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