摘要
主被动隔振能够有效改善系统全频带隔振能力,有助于金刚石刀具研磨过程中稳定控制刀具刃口所受到的研磨压力。在应用主被动隔振法控制刀具研磨压力时,需要根据刀具刃磨机床进给轴的控制能力,合理设计柔性调压平台Z向支承刚度,通过调压平台的支承刚度抑制高频振动,同时还要确保位移控制量的输出频率和调压平台固有频率之间的匹配关系,通过主动控制削弱调压平台的谐振峰,以达到稳定刀具研磨压力的目的。
Active and passive vibration isolation can effectively enhance system ability of vibration isolation in the whole frequency band,which is helped to control grinding pressure at a stable setting level in the process of natural diamond tool grinding. Thus ,when use the method of active and passive vibration isolation,it is required to consider the control ability of tool grinding machine to reasonably design the Z-axis stiffness of flexure-based pressure adjusting stage. The stage is used as passive vibration isolation system to isolate high frequency vibration,and then,machine feed axis weaken resonance peak value by controlling displacement output signal frequency matching to the stage＇s natural frequency.
出处
《机械设计与制造》
北大核心
2009年第7期236-238,共3页
Machinery Design & Manufacture
关键词
金刚石刀具
研磨压力控制
主被动隔振
迭代学习控制
预测函数控制
Natural diamond tool
Grinding pressure control
Active and passive vibration isolation
Iterative learning control
Predictive function control
