西华大学学报（自然科学版）2011，Vol.30Issue(1)：28-31,82,5.
高速卧式加工中心电主轴动态特性研究
Research on Dynamic Characteristics of Motorized Spindle of High-speed Horizontal Machining Center
摘要
Abstract
The machining precision and cutting efficiency of a numerical control machine tool to a great extent depend on the dynamic characteristics of the motorized spindle. To overcome the weakness of predicting the rationality of axis-bearing unit designed by traditional method, the dynamic characteristics of the motorized spindle installed in a certain high-speed horizontal machining center were studied in this paper. The results showed that the rotary speed designed was far lower than the critical rotary speed which matched with the low-order medal inherence frequency (659.90Hz) of the spindle, so resonance vibration could be effectively avoided. If the spindle unit generated resonance vibration under the action of a periodic exciting forces, the stress of bearing 3 would reach the maximal value, and the huge vibration intensity would result in the loss of bearing working precision and even destroy the bearing.关键词
电主轴/动态特性/共振/有限元分析Key words
motorized spindle/ dynamic characteristic/ resonance vibration/ finite element analysis分类
机械制造引用本文复制引用
胡腾,傅建,彭必友,郑裕来..高速卧式加工中心电主轴动态特性研究[J].西华大学学报（自然科学版）,2011,30(1):28-31,82,5.基金项目
2009年同家科技重大专项(2009ZX04001-013) （2009ZX04001-013）
