Air tightness high-precision testboard for motor cover

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...

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 process, so that the test piece cannot be repaired and reused, resulting in a waste of resources problem, the present invention proposes an airtight high-precision test bench for motor cover

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