Title :
Master-Slave control for milling rotary tables with flexible reduction stages
Author :
Zirn, O. ; Fink, A.
Author_Institution :
Inst. fur Prozess- und Produktionsleittechnik, Tech. Univ. Clausthal, Clausthal-Zellerfeld, Germany
Abstract :
This contribution is concerned with Master-Slave servo control of very large rotary tables for machine tools, where flexible gears limit the achievable feedback control performance. Rules of thumb are derived for the velocity controller comissioning with optimum damping as well as for adequate stability if the drives are decoupled mechanically. State space control extensions, that are now available for servo axis controllers, can improve the performance significantly but increase the design and commissioning complexity. Based on a simplified mathematical model, efficient commissioning rules are derived. The achievable performance for multidrive servo axes is elucidated by an exemplary milling machine tool rotary table.
Keywords :
damping; feedback; gears; milling machines; optimal control; servomechanisms; stability; state-space methods; velocity control; adequate stability; feedback control; flexible gear; flexible reduction stage; machine tool; master-slave servo control; mathematical model; milling rotary table; optimum damping; state space control; velocity controller commissioning complexity; Damping; Feedback control; Gears; Machine tools; Master-slave; Milling; Servomechanisms; Servosystems; Thumb; Velocity control;
Conference_Titel :
Advanced Electromechanical Motion Systems & Electric Drives Joint Symposium, 2009. ELECTROMOTION 2009. 8th International Symposium on
Conference_Location :
Lille
Print_ISBN :
978-1-4244-5150-0
Electronic_ISBN :
978-1-4244-5152-4
DOI :
10.1109/ELECTROMOTION.2009.5259123
