Study on Spindle Dynamic Errors of Domestic NC Machine Tools

Abstract:

This paper explains a set of tests necessary for ensuring spindle performance focus on the rotating sensitive direction of spindle. It is found that the original signals of spindle dynamic rotation could be separated and reconstructed to spindle dynamic signal and random signal according to their different frequency components. The asynchronous error and synchronization error of spindle dynamic rotation in radial direction and axial direction could be computed from spindle dynamic signal. The distribution trend of spindle dynamic errors is studied, it is found without considering the shift speed of machine tool spindle and the natural frequency of machine tool, the distribution of spindle dynamic errors presented a trend of rising with the rotation speed increasing.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 3279-3283
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.3279
• Online since: May 2013
• Authors: Jian Qiu
• Keywords: Asynchronous Error, Average Error, Errors Separating Reconstructing, Radial Vibration Acceleration, Spindle Dynamic Errors

References

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