Rapid air-tightness precision testing device and test method

A technology of air tightness testing and testing device, which is applied in the direction of using liquid/vacuum degree for liquid tightness measurement, etc., can solve the problems of inconvenient operation, complex structure, easy damage, etc., and achieves simple structure, high degree of automation, and improved efficiency. Effect

Pending Publication Date: 2018-06-22
苏州精锐精密机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The solution of the above patent requires the use of a water tank to test the airtightness of the object under test, which is easily damaged after long-term use, and has the problems of complex structure and inconvenient operation

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  • Rapid air-tightness precision testing device and test method
  • Rapid air-tightness precision testing device and test method
  • Rapid air-tightness precision testing device and test method

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Embodiment Construction

[0036] Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent replacements or equivalent transformations fall within the protection scope of the present invention.

[0037] In the description of the scheme, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplification of description, rather than indicating or implying that the device or element referred to must have a specific Orientation, construction and operation in a particular o...

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Abstract

The invention discloses a rapid air-tightness precision testing device and testing method for air tightness detection of an automobile-shifting power-assisting cylinder shell. The test device comprises a first sealing mechanism which includes a sealing seat and a fixing device, which can apply pressure to the workpiece on the sealing seat so as to be fixed on the sealing seat and seal the openingof the first direction; a second sealing mechanism arranged on one side of the first sealing mechanism, which can seal opening of the second direction of the workpiece on the sealing seat; a gas-tighttest mechanism which can inflate the inner cavity of the workpiece and conduct the air-tightness test. The invention meets the limit fixing requirement of the workpiece and the sealing requirement ofdifferent openings through two sealing mechanisms to make the inner cavity of the workpiece form an effective sealing space, so that the air-tightness detection can be carried out by the inflating and the gas-tight detector. The structure is simple, the detection operation is easy, matching with the static seal which is easy to realize, the reliability and the effectiveness of the seal are effectively ensured, and the accuracy of the test results can be ensured.

Description

technical field [0001] The invention relates to an airtightness precision testing device and a testing method, in particular to a rapid airtightness precision testing device and a testing method for the casing of an automobile gear shift booster cylinder. Background technique [0002] The air tightness testing machine, also known as the air tightness testing machine, is widely used in the air tightness of various seals such as faucet chambers, automobile cylinders, piston chambers, elbow chambers, pressure gauges, and gas storage tanks. The testing equipment can be used for production-type batch testing, as well as for sampling or laboratory use. The traditional methods of air tightness testing include bubble method, direct pressure method, helium mass spectrometry, etc. Usually, the test piece is put into water for testing, and manual operation is inefficient and time-consuming. Other air tightness testing machines also have the problems of insufficient precision, slow det...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 刘波蒋涛徐萌
Owner 苏州精锐精密机械有限公司
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