Air tightness high-precision testboard for motor cover

A test bench, air tightness technology, applied in liquid tightness measurement using liquid/vacuum degree, by measuring the rate of increase and deceleration of fluid, by detecting the appearance of fluid at the leak point, etc., it can solve the problem of not being able to determine the leakage of the test piece location, inability to test parts to be repaired and reused, waste of resources, etc.

Active Publication Date: 2021-06-22
ZHEJIANG JIEZHONG SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]In order to make up for the deficiencies of the existing technology, solve the problem of not being able to determine the specific leakage location of the test piece during the detection

Method used

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  • Air tightness high-precision testboard for motor cover
  • Air tightness high-precision testboard for motor cover
  • Air tightness high-precision testboard for motor cover

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Embodiment approach

[0029] As an embodiment of the present invention, the closed module 11 includes a groove 111, an elastic rod 112, a chute 113, a sliding strip 114 and a sealing strip 115; a groove 111 is provided at the lower end of the workbench 2; The airtight tooling 7 is placed in the groove 111; four chutes 113 are provided in the groove 111; the four chutes 113 correspond to the four sides of the airtight tooling 7; the test strip housing 101 The edge is provided with a draw-in groove; the lower end of the elastic rod 112 is located in the chute 113, the lower end of the elastic rod 112 is slidably connected with the chute 113, and one end of the elastic rod 112 is engaged with the draw-in groove on the edge of the test strip housing 101, elastic The other end of the rod 112 is fixedly connected with the slide bar 114; the slide bar 114 slides on the surface of the groove 111, and the other end of the top of the slide bar 114 is fixedly connected with a sealing strip 115; during work, be...

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Abstract

The invention belongs to the technical field of air tightness testing, and particularly relates to an air tightness high-precision testboard for a motor cover. One end of the testboard body is provided with a tester, and the other end is provided with a workbench; an airtight tool is arranged at the lower end of the workbench; fixing seats are arranged at the tail ends of piston rods of the cylinders; four blocking rods are fixed at the lower ends of the fixing seats; the detection module comprises a test paper board shell, a test paper board upper cover, wet bromothymol blue test paper and a blocking block; a blocking block is arranged at the lower end of the blocking rod and is detachable; the wet bromothymol blue test paper is positioned in the test paper plate shell; the test paper plate upper cover is positioned above the wet bromothymol blue test paper; the lower end of the test paper board shell is unclosed, the area of the unclosed lower end is smaller than that of the wet bromothymol blue test paper, and the test paper board shell and the test paper board upper cover are both made of transparent materials. According to the invention, the air leakage part of the test piece can be accurately tested, and the waste of resources is avoided.

Description

technical field [0001] The invention belongs to the technical field of airtightness testing, in particular to an airtightness high-precision testing platform for a motor cover. Background technique [0002] At present, some product airtightness tests use water for actual airtightness testing, and some use pressure switches for airtightness testing through air pressure. Water is used to actually test product airtightness, which may damage the product and cause poor functionality, and cannot be used on a large scale. suitable for production use. However, the pressure switch is used to test the air tightness of the product, but there are problems such as poor stability of the pressure switch, poor accuracy (accuracy ≥ 400Pa), high resolution (resolution ≥ 100Pa), etc., and during the test, it determines the pressure setting value It is a fixed type, but the actual detection pressure value changes greatly, and the product cannot be judged by the leakage pressure value, so it is...

Claims

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Application Information

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IPC IPC(8): G01M3/26G01M3/04
CPCG01M3/26G01M3/04
Inventor 董祖琰孙坤黄原朱叶锋董兴金林枫
Owner ZHEJIANG JIEZHONG SCI & TECH CO LTD
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