An adjustable groove depth measuring device and measuring method

Abstract

The invention relates to an adjustable groove depth measuring device and a measuring method. The device includes a measuring head assembly and a calibration gauge block; the measuring head assembly includes a frame, an insert block, an adjustment block, a compression screw and two measuring needles; the frame The two sides of the measuring end of the measuring end form a receiving groove between the supporting plates. The insert and the adjusting block are set in the receiving groove, and there are teeth that engage with each other on the opposite surface of the two, and there are two on the side wall of the adjusting block. There are two coaxial stylus mounting screw holes, and the two styli are connected to the positions of the two stylus mounting holes through threads respectively; the compression screw passes through the left lateral support plate, the insert block, the adjustment block and the right lateral support plate, and is connected with the right lateral support plate. The left lateral support plate and the adjustment block form a threaded connection with opposite rotation. The calibration gauge block is provided with a calibration groove with one side opening, and the distance between the upper and lower calibration surfaces of the calibration groove is the calibration height of the calibration gauge block. The invention can avoid the interference part of the part structure to the measuring instrument, so that the size of the part to be measured can be directly measured.

Description

technical field [0001] The invention belongs to the technical field of part processing and measurement, and in particular relates to an adjustable groove depth measuring device and a measuring method. Background technique [0002] At present, in order to obtain the depth dimension of the groove of the part, the engineering site usually uses the transition datum to measure the depth of the groove of the part multiple times and perform additional calculations. On the one hand, this method will cause measurement errors due to the introduction of transitional benchmarks; on the other hand, due to the precision and structural limitations of measuring instruments, various special measuring devices or instruments are often equipped according to different parts, which not only increases the cost of measuring work, And it is not conducive to the improvement of measurement efficiency. Contents of the invention [0003] The purpose of the present invention is to overcome the deficie...

AI Technical Summary

Problems solved by technology

On the one hand, this method will cause measurement errors due to the introduction of transitional benchmarks; on the other hand, due to the precision and structural limitations of measuring instruments, various special measuring devices or instruments are often equipped according to different parts, which not only increases the cost of measuring work, And it is not conducive to the improvement of measurement efficiency

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