Automatic automobile braking line air tightness detecting device and detecting method thereof

An automatic detection device and automobile braking technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, can solve the problem that soap bubbles cannot effectively find small leak points, and the final factory products The quality is not easy to control, the manual inspection cycle is long, etc., to improve the detection efficiency and accuracy, to make up for the limitations, and to achieve the effect of low installation cost

Pending Publication Date: 2018-01-12
ANHUI ANKAI AUTOMOBILE
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Problems solved by technology

Due to the complex pipeline of the whole vehicle (chassis), in order to ensure the detection accuracy, a long detection time is required
Due to the long manual inspection cycle, large errors, and low efficiency, it is easy to cause th

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  • Automatic automobile braking line air tightness detecting device and detecting method thereof
  • Automatic automobile braking line air tightness detecting device and detecting method thereof

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[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc. The indication of the orientation or position relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the component or element referred to must have a specific orie...

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Abstract

The invention discloses an automatic automobile braking line air tightness detecting device and a detecting method thereof. The automatic automobile braking line air tightness detecting device comprises an air inlet pipe, a testing pipe and an exhausting pipe, wherein the air inlet pipe comprises a compressed air source, a first magnetic valve and a first pressure sensor, the testing pipe comprises a second magnetic valve and a second pressure sensor, and the exhausting pipe comprises a third magnetic valve. The air tightness is detected by adopting a differential pressure method and combiningwith a soap lather detection method and an automatic carbon dioxide air tightness detecting method. Automatic automobile braking line air tightness detection is achieved, meanwhile the testing pipe number can be set according to the production demand, the detecting efficiency and precision are improved, and the demand for automatic detection during large-scale production is met. Compared with a direct voltage method adopted for manual detection, the differential pressure method can effectively decrease system errors and errors caused by environmental change. In addition, compared with a traditional differential pressure method, a comparison workpiece is not needed, a device structure is simplified, and the limitation that a leakage point is sought by adopting a traditional soap lather detection method is made up.

Description

technical field [0001] The invention belongs to the field of air tightness detection, and in particular relates to an automatic air tightness detection device and a detection method of an automobile brake pipeline. Background technique [0002] At present, almost all passenger cars over 4 tons use pneumatic brakes, and the air tightness of the brake pipelines directly affects the braking performance of the vehicle, which is closely related to people's lives and property. [0003] The traditional detection method of vehicle air tightness is to use a mechanical barometer to measure the pressure drop of the vehicle (chassis) brake system for a period of time under a certain pressure. Due to the complex pipeline of the whole vehicle (chassis), in order to ensure the detection accuracy, a long detection time is required. Due to the long manual inspection cycle, large errors, and low efficiency, it is easy to cause the quality of the final factory product to be difficult to contr...

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Application Information

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IPC IPC(8): G01M3/28
Inventor 高海陈磊郑士林李后兵肖劲松吴家标杜庆锐
Owner ANHUI ANKAI AUTOMOBILE
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