Mechanism for rapidly measuring radial difference of outer wall of casing and its use method

Abstract

The present invention provides a mechanism for rapid measurement of a cartridge receiver outer wall radial difference and an application method thereof. A movable measurement portion employs a linearbearing installed in a measuring body to achieve axial and circumferential motion. The rotation and the radial sliding of the measurement portion in the measuring body solve the stroke problem of measurement of an inner cavity. A fixed measuring rod provided with a sliding measuring rod performs stable and barrier-free sliding on the linear bearing, so that it is ensured that the sliding measuringrod and the fixed measuring rod are located in the same line and unstable factors caused by man-made force application measurement can be eliminated. The measurement effect is high and the measurement data is sensitive, the measurement for the dimensions of the inner portion of the cavity is convenient and rapid, the production efficiency is improved, the application effect is good. The mechanismfor rapid measurement of the cartridge receiver outer wall radial difference and the application method thereof have practical application values, can effectively avoid a problem of interference on measurement caused by parts, and can accurately and rapidly measure the cartridge receiver outer wall radial difference. The measurement method is simple and convenient and rapid in operation. Meter setting is performed on a standard piece when in measurement, detection is performed on a cartridge receiver part to be measured, and the measurement mode is relative measurement to improve the measurement precision and to improve the production efficiency.

Description

Technical field: [0001] The invention relates to the technical field of detecting the wall difference size of an outer wall cavity, in particular to a mechanism for rapidly measuring the radial difference of the outer wall of a casing and a method for using the same. Background technique: [0002] General-purpose measuring tools cannot meet the technical requirements for the shape and size of the outer wall of the measured part. Due to the accuracy of the measured parts, the relative measurement method is adopted. The part to be measured is a cavity structure, and the one-way movement of the contact will interfere with the end face of the part. The part to be detected cannot be measured, and the measurement point must be measured by rotating motion; due to the narrow space of the measurement position, the positioning surface is small. Positioning state It is not conducive to stable measurement. Measuring the radial dimension of the part, such as artificially adding a measur...

AI Technical Summary

Problems solved by technology

The part to be measured is a cavity structure, and the one-way movement of the contact will interfere with the end face of the part. The part to be detected cannot be measured, and the measurement point must be measured by rotating motion; due to the narrow space of the measurement position, the positioning surface is small. Positioning state It is not conducive to stable measurement. Measuring the radial dimension of the part, such as artificially adding a measurement reference on the end face of the part, will increase the difficulty of manufacturing, increase additional manufacturing costs and affect the guarantee of measurement accuracy.

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