A fast tool feeding mechanism using piezoelectric actuators in noncircular turning

作者：Ma, HQ^*; Hu, DJ; Zhang, K

来源：International Journal of Advanced Manufacturing Technology, 2005, 27(3-4): 254-259.

DOI：10.1007/s00170-004-2168-6

• feed-forward control
• noncircular turning
• piezo actuator
• repetitive control

Piezoelectric actuators have wide applications because of their indefinite resolution and high stiffness, for use in optical devices, measurement systems and ultra-precision machine tools. In noncircular turning, the tools feeding servo should be long-travel, high-frequency and high-precision. In order to meet these requirements, a new flexure-hinge structure is used to amplify the output displacement of piezoelectric actuators. A hybrid of feed-forward control in the disturbance channel, repetitive control and Proportion and Integration control (PI) are also employed to better the tracking precision and robustness of the system.

• 出版日期2005-12
• 单位上海交通大学