Detecting tooling for vacuum and high-pressure leakproofness of brake caliper

Abstract

The invention relates to a detecting tooling for vacuum and high-pressure leakproofness of a brake caliper. The detecting tooling comprises a working table, wherein the working table is a mounting platform; two linear shafts I and two linear shafts II are perpendicularly arranged on the working table; the upper ends and the lower ends of the two linear shafts I are sleeved with shaft supports; the upper ends of the two linear shafts I are connected with a vacuum detecting device through bolts VI; a high-pressure detecting device is mounted on the working table, and is positioned under the vacuum detecting device. The detecting tooling can eliminate the leakage phenomenon of the brake caliper, and guarantees the braking performance of a disc brake; meanwhile, by adopting the differential pressure method to detect the vacuum leakproofness of the brake caliper, collecting and processing of signals can be easily realized, particularly automation of the whole detecting process can be realized, the detecting period is greatly shortened, the labor intensity is reduced, and the detecting efficiency of vacuum and high-pressure leakproofness of the brake caliper can be greatly improved meanwhile.

Description

technical field [0001] The invention relates to the technical field of caliper detection, in particular to a vacuum and high-pressure sealing performance detection tool for a brake caliper. Background technique [0002] With the rapid development of the automobile industry, the performance and speed of automobiles are constantly improving. In order to ensure the safety of people and vehicles, improving the braking system of automobiles has become a hot spot in the research of the modern automobile industry. The survey shows that disc brakes have been widely used in automobile braking systems. Studies have shown that disc brakes can ensure braking safety, stability and durability better than drum brakes. The brake caliper is an important part of the disc brake. If the seal of the brake caliper is not good, it will cause leakage of the automobile disc brake assembly, thereby reducing the braking force and the braking effect. In severe cases, it will cause traffic accidents. ...

AI Technical Summary

Problems solved by technology

The brake caliper is an important part of the disc brake. If the seal of the brake caliper is not good, it will cause the leakage of the automobile disc brake assembly, thereby reducing the braking force and the braking effect. In severe cases, it will cause traffic accidents.

The traditional bubble method and smear method are backward

The bubble method is easy to operate and can directly observe the leaking location and leakage situation, but it also has many defects. If the leaking location and several leaks of the workpiece are not known in advance, it is difficult to collect all the bubbles, which will affect the accuracy of the measurement; secondly, for large volume , bulky parts, it is difficult to observe in water; for parts with complex surfaces, air bubbles are attached to the bottom and folds of the parts and are not easy to observe, etc.

The smear method can only roughly observe the amount of leakage, but cannot quantitatively measure the amount of leakage

The detection accuracy of pressure drop method and flow measurement method is low, and the cost of helium leak detection method is too high. These methods cannot adapt to the mass detection of brake calipers

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