Journal Title
Title of Journal: J Russ Laser Res
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Abbravation: Journal of Russian Laser Research
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Authors: Qingbin Tong Baozhu Han Deli Wang Jianqiang Wang Zhenliang Ding Feng Yuan
Publish Date: 2014/07/11
Volume: 35, Issue: 3, Pages: 307-316
Abstract
Based on the theory of laser measurements we propose a novel laserbased automatic inspection system for measuring the internal thread parameters which integrates the laserbased measuring unit to detect the longitudinal section of the thread profile and the dualaxis moving stage for the movement of an undetected object We design a special laser probe based on the bidirectional inclination scanning method for obtaining the threadprofile data This method and structural design enables the laser probe to overcome the shortcomings of traditional methods for measuring large inclined surfaces and eliminate the impact of the lead angle We compare our results of internal threadparameter measurements with the coordinate measuring machine CMM system and investigate the repeatability with one internal screw ring gage by the system proposed The experimental results show that the measurement accuracy of the thread angle is 2′ and the other parameters are less than 4 μm
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