A New Measurement Method of Rotary Precision of Lathe Spindle

Abstract:

Rotary precision of the lathe spindle directly affects accuracy of the machined work-piece. With continuous improvement on requirements of rotary precision of the lathe spindle, a more accurate measurement method is needed to adopt to reflect actual shape precision of unprocessed part. Some advanced measurement principle and methods about rotary precision of the lathe spindle are researched, and also the measurement error is analyzed. The measurement result gotten by sensor concludes two parts, one is eccentric error caused by installation of the base ball, and the other is rotary error of the lathe spindle. The eccentric error is separated by the way of filter, as well as the rotary error is quickly and correctly measured by unidirectional digital measurement. The rotary error is superimposed on a base circle generated by algorithm. The roundness error is assessed by MZC. At last, verifying the feasibility of the new measurement method by means of real experiment.

• Periodical: Advanced Materials Research (Volume 338)
• Pages: 792-795
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.338.792
• Online since: September 2011
• Authors: Dan Zhang, You De Wu, Xian Wen Wu, Rui Wang
• Keywords: Digital Measurement Method, Lathe Spindle, MZC, Rotary Precision, Virtual Instrument (VI)

References

[1] K.J.H. AI-Shareef and J.A. Brandon: International Journal of Machine Tools and Manufacture, Vol. 30 (1990) No.3, p.431.

[2] G.K. Arora, C. Mallanna, B.K. Anantharaman and P. Babin: International Journal of Machine Tool Design and Research, Vol. 17 (1977) No.2, p.127.

DOI: 10.1016/0020-7357(77)90006-3

[3] H.F.F. Castro: Measurement, Vol. 41 (2008) No.5, p.526.

[4] S. Lei: International Journal of Machine Tools and Manufacture, Vol. 42 (2002) No.6, p.653.

[5] E. Marsh and R. Grejda: Precision Engineering, Vol. 24 (2000) No.1, p.50.

[6] E.H.K. Fung, S.M. Cheung and T.P. Leung: Computers in Industry, Vol. 35 (1988) No.2, p.109.

[7] E. Okuyama, N. Nosaka and J. Aoki: Measurement, Vol. 40 (2001) No.1, p.64.