In order to verify the measurement accuracy and accuracy of the proposed structured light vision system for the involute profile of spur gear, this chapter uses the system to measure the base circle radius and tooth profile error of involute profile, and compares the measurement results of the base circle radius with the theoretical value of the base circle radius, The measurement results of tooth profile error are compared with those of high-precision CNC spur gear measurement center, and then the experimental results are analyzed. In the experiment, the effects of the installation position of structured light system, the parameters of spur gear (such as the number of teeth and modulus) and the inclination angle of light bar on the measurement results are discussed, and the best scheme of measurement is given.
The method of measuring the involute profile error of spur gear by using structured light vision system is experimentally analyzed. Firstly, the measurement experiment of involute tooth profile base circle radius is carried out, the accuracy of the proposed measurement method is verified through the experiment, and the influence of the position of structured light vision system on the measurement results is analyzed; Secondly, the involute tooth profile error is measured through experiments, and the influence of the module of spur gear and the number of teeth of spur gear on the measurement accuracy is verified; Furthermore, the influence of the angle between the structured light plane and the cross section of the spur gear on the measurement results is verified by measuring the radius of the base circle and the error of the involute tooth profile. It is proved that the established pseudo light plane π can improve the accuracy of the measurement model; Finally, the factors that may affect the measurement accuracy are analyzed.