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Research on Low Speed Servo Control Technology of Ultra-Precision Machine Tool

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Abstract:

An ultra-precision machine is developed by Precision Engineering Research Institute of Harbin Institute of Technology to machine components made of KDP crystal with single point diamond fly cutting technique . A stable ultra-low speed feed of worktable is necessary in the machining process inasmuch as the KDP crystal components to be machined must be high form accuracy, low surface roughness and low surface waveness . This paper analyses the effect on speed stability and positioning accuracy under the control of semi-closed loop and full-closed loop based on the experimental data, and also present a compensating control algorithm of error disturbance feed-forward which enhances the stability of ultra-low speed motion of the semi-closed loop feed control servo system of the machine. The simulation results indicate that the values of the steadystate tracking error decreased to 1/10 after using compensating control algorithm. The P-V value of the aluminum specimen machined by the ultra-precision machine tool was 0.27 wavelengths.

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Periodical:

Key Engineering Materials (Volume 339)

Pages:

163-167

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.339.163

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Online since:

May 2007

Authors:

X.W. Sun, Fei Hu Zhang, Shen Dong, L.J. Zhang

Keywords:

KDP Crystal, Low Speed Feed, Servo Control, Ultra-Precision Machine Tool

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] HoSeong Lee, Masayoshi and Tomizuka: IEEE Transactions on Mechatronics, Vol. 43 (1996) No. 1, p.48255.

Google Scholar

[2] Johan Eker and Jorgen Malonborg: IEEE Trans &Control Systems Society, Vol. 19 (1999) No. 4, p.12221.

Google Scholar

[3] Padma Sree, R. Srinivas, M.N. Chidambaram: Computers and Chemical Engineering, Vol. 28 (2004) No. 11, pp.2201-2218.

DOI: 10.1016/j.compchemeng.2004.04.004

Google Scholar

[4] Keles, Omer, Ercan and Yucel: Control Engineering Practice, Vol. 10 (2002) No. 6, pp.645-654.

Google Scholar

[5] F. Vassallo, Raquel, Schneebeli, J. Hans and Santos-Victor José: Visual servoing and appearance for navigation. Robotics and Autonomous Systems, Vol. 31 (April 30, 2000) No. 1-2, pp.87-97.

DOI: 10.1016/s0921-8890(99)00083-4

Google Scholar