Taper position gauge for accurately measuring big end diameter error of taper hole

Abstract

The invention discloses a taper position gauge for accurately measuring a big end diameter error of a taper hole. The gauge comprises a dial gage, a gage setting piece, a measurement rod, a gauge lower body, a gauge upper body, a spring and a tightening screw, wherein the measurement rod is movably mounted in the gauge lower body; the upper part of the gauge lower body is connected with the gauge upper body for mounting the dial gage; the top end of the measurement rod is contacted with a contact of the dial gage; the gauge upper body is internally equipped with the spring for supplying elastic force to the measurement rod; and a measurement head matched with the to-be-measured taper hole is mounted at the lower part of the measurement rod. According to the gauge, with the adoption of the dial gage and the gage setting piece, a base plane distance can be measured accurately; the qualification of a part can be judged accurately; and the gauge is quick and convenient in measurement, and high in reliability.

Description

technical field [0001] The invention relates to a mechanical measuring tool, in particular to a gauge for measuring the diameter error of a tapered hole. Background technique [0002] In machining, the machining and measurement of taper holes are often encountered. During the manufacturing process of cone parts, there will be errors in the diameter and angle of the cone. The cone diameter error and the cone angle error will affect the change of the base surface distance when the cone is combined, and affect the bonding properties and the number of bonding surfaces of the cone. Therefore, in order to make the conical parts can be accurately combined and interchanged, it is necessary to check the cone diameter and angle error of the conical joint parts. [0003] In the prior art, cone gauges are often used to measure cone angle and diameter errors. The taper gauge can be used to test the taper angle (taper) of the inner and outer cone workpieces and the distance deviation b...

AI Technical Summary

Problems solved by technology

This method can accurately measure the large diameter error of the taper hole, but it is inconvenient to measure. To replace the diameter of the steel ball, it is necessary to repeatedly calculate the limit size of the measurement, and it is difficult to align the depth gauge of the vernier caliper with the apex of the steel ball during actual measurement, so the measured The distance from the end face to the vertex of the steel ball is actually inaccurate

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