Study on Accurate Tool Positioning Technology for Noncircular Turning System

Abstract:

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Noncircular turning is necessary for machining various irregular shaped workpieces. Tool positioning control is essential for a noncircular turning system. This paper proposes a method of accurate tool positioning based on piezoelectric ceramics micro-displacement actuator. A Duhem hysteresis model of piezoelectric actuator has been developed, together with a control model of accurate positioning system. By using Simulink/Matlab, the control system was simulated, and then tested on a test-bench. The results show that the positioning time of control system is 0.1 seconds and the error rate of positioning accuracy is less than 5%, which can meet the accuracy positioning requirements of the noncircular turning system.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

4097-4102

DOI:

10.4028/www.scientific.net/AMR.189-193.4097

Citation:

G. P. Li et al., "Study on Accurate Tool Positioning Technology for Noncircular Turning System", Advanced Materials Research, Vols. 189-193, pp. 4097-4102, 2011

Online since:

February 2011

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Price:

$38.00

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