Track Smoothness of Moving Axis Considering Kinematical Characteristics of Machine Tool

Yong Lin Cai; Zhi Min Yang; Jian Yong Li; Chao Huang

doi:10.4028/www.scientific.net/AMR.819.120

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 819Track Smoothness of Moving Axis Considering...

Track Smoothness of Moving Axis Considering Kinematical Characteristics of Machine Tool

Abstract:

In multi-axis NC (Numerical Control) machining for a complex part, high feed rate may bring shock to moving axes and influence the machining quality of the part. Firstly, velocity, acceleration and jerk kinematical characteristics are worked out according to the displacement curve of a moving axis. Secondly, the acceleration curve segments which need to be smoothed are found out according to the value of jerk, and these segments are smoothed with B-spline method. Then the smoothed velocity and displacement can be calculated through numerical integration method to get the new displacement curve of the moving axis. Finally, a test example is given to demonstrate the promising use of the proposed solution. The method presented by this paper can effectively decrease the acceleration shock of machine tool and improve the machining quality of part surface.

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Periodical:

Advanced Materials Research (Volume 819)

Pages:

120-124

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.819.120

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Online since:

September 2013

Authors:

Yong Lin Cai, Zhi Min Yang, Jian Yong Li, Chao Huang

Keywords:

Kinematical Characteristics, NC Machining, Track Smoothness

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References

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DOI: 10.1016/0010-4485(82)90106-3

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