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A high-pressure air-tightness testing fixture for a self-adjusting screw sleeve of a brake caliper

A self-adjusting screw sleeve and detection fixture technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum, can solve the problems of unfavorable mass production and high-quality production detection, inconvenient clamping, and low detection efficiency. Achieve the effects of improving detection efficiency and detection accuracy, reducing usage, reducing production cost and manufacturing difficulty

Active Publication Date: 2018-11-20
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blocking block in the self-adjusting screw sleeve with plugging block assembly of the brake caliper is welded. It will fall off under high pressure or have poor sealing performance, which will cause brake failure and cause serious safety problems. Therefore, the self-adjusting screw sleeve is produced before leaving the factory. Manufacturers need to conduct reasonable testing to see if their airtightness and pressure resistance meet the technical requirements.
The existing airtight testing equipment is inconvenient for clamping and low testing efficiency, which is not conducive to mass production and high-quality testing

Method used

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  • A high-pressure air-tightness testing fixture for a self-adjusting screw sleeve of a brake caliper
  • A high-pressure air-tightness testing fixture for a self-adjusting screw sleeve of a brake caliper
  • A high-pressure air-tightness testing fixture for a self-adjusting screw sleeve of a brake caliper

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0016] Such as Figure 1 to Figure 4 As shown, a brake caliper self-adjusting screw sleeve high-pressure air tightness detection fixture includes a fixture base plate 11, and a bearing bracket 10 and a lower seal seat 9 are mounted on the fixture base plate 11 through bolt connections; the vertical position of the bearing bracket 10 is In the direction, a vertical guide column 6 is installed through bolt connection, and a horizontal guide column 12 is equipped with a linear bearing 4 in the lateral direction of the bearing bracket 10, and the horizontal guide column 12 can slide on the bearing bracket 10; the upper end of the vertical guide column 6 and the Horizontal cylinder mounting plate 2A and vertical cylinder mounting plate 2B are equipped with horizontal cylinder mounting plate 2A and vertical cylinder mounting plate 2B at the rear end...

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Abstract

The invention provides a brake caliper self-adjusting screw sleeve high pressure air tight detection clamp, which comprises a clamp base plate. The clamp base plate is provided with a bearing support and a lower sealing seat. The bearing support is provided with a vertical guide post and a horizontal guide post. The upper end of the vertical guide post and the back end of the horizontal guide post are equipped with a vertical cylinder mounting plate and a horizontal cylinder mounting plate to have a cylinder installed. The vertical guide post is also equipped with a moveable sliding plate with an upper sealing head. The horizontal guide post is also provided with a horizontally locking slide plate, a horizontally locking baffle plate, a spring positioning sleeve return spring and a limit lever. The horizontally locking slide plate and the horizontally locking baffle plate are provided with a clamp locking sleeve. The lower sealing seat is provided with a test component fixing sleeve. In the invention, a float locking mechanism is adopted to not only avoid the mechanism requiring the hydraulic pressure in the up-pressure process but also to make convenient clamping and save space. The combination of the test component fixing sleeve and material unloading cylinder realizes the function of easy clamping of the test component and convenient unloading of materials. In the testing process, high pressure gas replaces hydraulic pressure, which not only improves the experimental environment but also eliminates the cleaning of the test component after the test.

Description

technical field [0001] The invention relates to the technical field of testing jigs for auto parts, in particular to a high-pressure air-tightness testing jig for self-adjusting screw sleeves of brake calipers. Background technique [0002] Brake caliper self-adjusting nut is the main part of the integrated parking brake caliper, and its performance is related to personal safety. During the working process, the self-adjusting screw sleeve will push the piston to clamp the brake disc to play the role of driving brake and parking brake, and the hydraulic pressure it receives during the working process is 15MPa. The blocking block in the self-adjusting screw sleeve with plugging block assembly of the brake caliper is welded. It will fall off under high pressure or have poor sealing performance, which will cause brake failure and cause serious safety problems. Therefore, the self-adjusting screw sleeve is produced before leaving the factory. Manufacturers need to conduct reason...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 马朝永曹获赵海斌
Owner BEIJING UNIV OF TECH
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