investigation the effects spindle unbalance induced error motion on machining accuracy in ultra-precision diamond turning精编.pdf

International Journal of Machine Tools Manufacture 94 (2015) 48–56 Contents lists available at ScienceDirect International Journal of Machine Tools Manufacture journal homepage: /locate/ijmactool Investigation of the effects of spindle unbalance induced error motion on machining accuracy in ultra-precision diamond turning P. Huang, W.B. Lee n, C.Y. Chan State Key Laboratory of Ultra-precision Machining Technology, Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, PR China a r t i c l e i n f o a b s t r a c t Article history: In ultra-precision machining, error motions of the aerostatic bearing spindle (ABS) have significant ef- Received 6 December 2014 fects on the machining accuracy. Spindle unbalance is a critical factor attributing to error motions of the Received in revised form ABS. Much work currently has been focused on the measurement of error motions and spindle balancing. 5 April 2015 However, the unbalance induced spindle error motion (UISEM) and the corresponding effects on ma- Accepted 14 April 2015 chining accuracy are not well understood. In this paper, a dynamics model of the ABS was established to Available online 15 April 2015 characterize the UISEM and its dynamic behavior with consideration of the unbalance effects. A series of Keywords: groove turning experiments were especially designed to investigate the UISEM. Good agreement be- Ultra-precision diamond turning tween theor