Spacing measuring device

Abstract

The invention discloses a distance measuring device used for measuring a to-be-measured distance between a reference end face and a measuring end face which are arranged on a to-be-measured part in parallel at an interval, wherein the device comprises a support assembly, and a measuring meter piece, a measuring lever and a meter aligning piece which are arranged on the support assembly. The support assembly is used for being positioned and supported on an installation supporting face between the reference end face and the measuring end face in the measuring process, and the first end of the support assembly is provided with a limiting end face abutting against the reference end face for limiting. The measuring lever is rotationally supported at the second end of the support assembly and comprises an abutting supporting rod and a measuring supporting rod which are arranged at an included angle, and the measuring supporting rod is used for enabling the abutting supporting rod to abut against the meter head of the measuring meter piece when abutting against the measuring end face. The meter aligning piece enables the measuring meter piece to measure a reference distance L on the measuring meter piece and then to carry out meter aligning and zero setting, so that the difference value between the to-be-measured distance of a to-be-measured part and the reference distance L is displayed through the measuring meter piece. The distance measuring device is simple in structure, simple in measuring operation, convenient to use and high in measuring precision.

Description

technical field [0001] The invention relates to the field of height measurement, in particular to a distance measurement device. Background technique [0002] Attached with the measurement manual figure 1 Take the bearing seat part shown as an example. At present, the methods for measuring the height dimension of the bearing seat 86.75 (0,-0.05) are: caliper measurement, altimeter measurement, and three-coordinate measurement. [0003] 1) Caliper measurement: The size can be measured directly by using a general-purpose caliper to measure the depth part of the structure, but the caliper has low accuracy, and the general measurement error is 0.02mm, which affects the measurement accuracy of the part size; in addition, when using a general-purpose caliper, due to the caliper structure, the measurement The hour caliper cannot be well supported on the two datum surfaces of the measured size, so the measurement error will be further enlarged. [0004] 2) Altimeter measurement: u...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a distance measurement device to solve the technical problems of low measurement accuracy in the existing measurement methods, the need for multiple assembly and disassembly of parts during the measurement process, affecting the processing progress of parts and the large measurement workload.

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