Checking tool capable of measuring 0.7-dimension end surface teeth

Abstract

The invention discloses a checking tool capable of measuring 0.7-dimension end surface teeth. A shaft jacket has a hollow cavity with two openings formed at two ends; one end of the shaft jacket fixedly sleeves the sleeve of a dial indicator; the other end of the shaft jacket sleeves one end of a guide jacket; a guide hole with two openings formed at two ends is formed in the center of the guide jacket along the axial direction of the guide jacket; a measuring head is arranged in the hollow cavity of the shaft jacket and the guide hole of the guide jacket; the measuring head can slide along the guide hole of the guide jacket; one end of the measuring head contacts with the measurement head of the dial indicator; the other end of the measuring head extends out from the guide hole of the guide jacket; a guiding jacket sleeves the other end of the guide jacket; and the guiding jacket can slide along the axial direction of the guide jacket. When the checking tool is used, the guiding jacket is attached to a standard piece, and the checking tool is vertical to the standard piece assuredly; the other end of the measuring head is located in the tooth groove of the standard piece; the shaft jacket is pressed downwards vertically; the standard piece is measured; zero setting is performed on the dial indicator; the checking tool is utilized to measure a piece; the reading of the dial indicator is the difference of the actual size of the piece and the size of the standard piece; and the actual size of the piece can be obtained based on the size of the standard piece.

Description

Technical field: [0001] The invention relates to a checking tool, in particular to a checking tool capable of measuring the 0.7 size of end face teeth. Background technique: [0002] The size of the end tooth of the flange is 0.7, and the drawing requires a Φ3.5 measuring ball to be placed on the tooth groove, and the distance from the top of the measuring tooth to the top of the measuring ball is 0.7 (-0.07, +0.04). Because the diameter of the measuring ball is too small, the measuring ball will move during the measurement process, affecting the measurement accuracy, and the measuring ball is easy to lose. [0003] Most of the same industry in China use measuring rods instead of measuring balls for measurement. After comparison, it is found that using measuring rods for measurement, because of the influence of alveolar straightness and burrs, the measurement results of measuring rods are 0.05mm larger than the measurement results of measuring balls, resulting in the measure...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of inaccurate measurement of the 0.7 end face teeth of all end face tooth flanges, and provide a inspection tool that can measure the size of the end face teeth 0.7...

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