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Checking fixture automatic gage automobile inspection tool is strong and efficient

First of all, check the surface of the plug gauge before use, there should be no rust, scratches, black spots, etc.; The marking of the plug gauge should be correct and clear.

Secondly, the standard conditions of the plug gauge measurement are: the temperature is 20°C, and the force measurement is 0. It is difficult to meet this requirement in actual use. In order to reduce the measurement error, try to use the plug gauge and the equipment to be measured under isothermal conditions. Use as little force as possible. Do not push the plug gauge into the hole or push it sideways.

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    Third, when measuring, the plug gauge should be inserted or pulled out of the axis of the hole, should not tilt; Plug gauge should be inserted into the hole, do not allow to turn or shake the plug gauge.

    Fourth, the plug gauge is not allowed to detect unclean workpieces.

    Fifth, the plug gauge is one of the precision measuring instruments. Handle with care and do not touch the work surface.

    Six, the plug gauge should be cleaned immediately after each use with a clean soft cloth or fine cotton yarn, coated with a thin layer of anti-rust oil, put into a special box, dry place storage.

    Seventh, the plug gauge should be regularly verified. The verification period shall be determined by the metrological department.


    When used, the correct operation of the instrument can be summarized as "light", "positive", "cold", "full".

    Light: gentle, safe and stable handling; Do not litter do not collide with the workpiece, check whether the workpiece is stable; Do not insert the card into the hard plug.

    Positive: The position must be placed forward and not tilted, otherwise the test results will be unreliable.

    Cold state: Only the workpiece to be detected and the temperature of the instrument can be detected. It is not possible to test just-processed workpieces that are still hot. Precision workpieces should be isothermal measured by an instrument.

    All: Instrumentation is required to test the workpiece for correct and reliable inspection results. The plug end must be checked over the entire length of the hole and the test must be carried out in 2 or 3 axial planes; It can be tested at both ends of the hole. Both the end of the caliper and the end of the caliper should be tested along the shaft and in no less than 4 locations around the shaft.