Rotation error modeling and compensation of spindle based on Clarke transformation in straightness error measurement of regular hexagon section shaft

Autor: Feng Li, Zhonghua Yu, Mao Xinyu, Kong Qingshun, Hao Li, Jie Tang, Juan Zhou
Rok vydání: 2020
Předmět:
Zdroj: Measurement. 166:108233
ISSN: 0263-2241
DOI: 10.1016/j.measurement.2020.108233
Popis: When spindle surface is irregular, the rotation error cannot be obtained by measuring the spindle. Therefore, a new method on rotation error measurement and rotation error compensation based on Clarke transformation was developed by full application of geometry shape of the regular hexagonal section shaft. Experimental result shows that the measurement results have consistency highly when the motor speed is 0.4r/s,and when rotating speed is less than 1r/s, the fluctuation range of length and Angle of spindle error in polar coordinates is 0.01 mm and 0.01 rad at different motor speed basically.Meanwhile, a comparative experiment is designed to verify the accuracy.The experiment shows that measurement error is within 0.01 mm basically and the measurement error is controlled within 0.01 mm with a success rate of 84% and 0.015 mm with a success rate of 96%. So the model can be applied to the straightness measurement process of the regular hexagonal section shaft directly.
Databáze: OpenAIRE