期刊
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
卷 63, 期 5-8, 页码 457-464出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00170-012-3923-8
关键词
Spindle rotation error; Error identification; Weierstrass function; Wavelet transform; PSD
资金
- National Natural Science Foundation of China [51105005]
- Scientific Research Fund for Dr. of Beijing University of Technology [X0001011201101]
This paper presents an identification method for the spindle rotation error from the flatness error in the workpiece surface. The spindle rotation error is identified by the wavelet transform, Weierstrass function, and power spectral density (PSD). The flatness error comprises various errors of the machine tool, such as spindle rotation error, guideway error, motor error, and ball screw error, therefore, wavelet transform is used to process the measured result of the workpiece and the signal is decomposed into high-frequency and low-frequency signal. Weierstrass function is used to fit the spindle rotation error. According to the PSD analysis of the processed signal in the frequency domain, the spindle rotation error is identified from the measured flatness error, this method provides a basis for the identification of machine tool errors.
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