Measuring instrument and measuring method of small-size inner hole chamfering depth

Abstract

The invention relates to a chamfering depth detecting method, in particular to a measuring instrument and a measuring method of a small-size inner hole chamfering depth. According to the size of the inner diameter of a product inner hole, a proper measuring head is selected for the measuring instrument, the top circle diameter of the measuring head is 0.0002mm larger than the inner diameter of the product inner hole; the measuring head is fixed on a measuring rod of the measuring instrument, zero calibration is carried out on the measuring instrument; the section of the inner hole to be measured and the vertical section where the measure head is placed are kept aligned vertically, a right hand is used for fixing a product to be measured; the measuring rod slides evenly and slowly until the measuring rod cannot slide, a numerical value is read, the numerical value at this time is the chamfering depth; measuring and reading in this way are repeated for more than three times, a mean value is solved, and the accurate chamfering depth value is obtained. The measuring instrument and the measuring method of the small-size inner hole chamfering depth have the advantages that the measuring instrument is simple and accurate in design and convenient to use, the chamfering depth can be measured accurately, control can be carried out on the depth in a quantitative mode, matching degree of parts is improved, and using performance of structural pieces is improved.

Description

technical field [0001] The invention relates to a method for detecting the chamfering depth, in particular to a measuring instrument and a measuring method for the chamfering depth of a small-sized inner hole. Background technique [0002] Taking the detection of optical fiber bushing as an example, optical fiber is more and more widely used in the communication industry due to its advantages of low cost and large capacity. In 2013, the Ministry of Industry and Information Technology of the People's Republic of China promulgated the "Code for Design of Fiber-to-the-Home Communication Facilities in Residential Areas and Residential Buildings" and "Code for Construction and Acceptance of Fiber-to-the-Home Communication Facilities in Residential Areas and Residential Buildings" to promote the construction of FTTH. Therefore, the application of ceramic sleeves, which are the main parts of optical fiber adapters, is also increasing year by year. Therefore, the quality inspec...

AI Technical Summary

Problems solved by technology

The depth cannot be quantitatively controlled, which directly affects the degree of cooperation of various parts and affects the performance of structural parts

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