动力卡盘对数控机床加工精度的影响  

Research on the effect of power chuck on the machining precision of numerical control machine tool

作　　者：胡志栋[1] 姜继海[1] 戴达军[1] 黄铮[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001

出　　处：《现代制造工程》2009年第8期4-9,共6页Modern Manufacturing Engineering

基　　金：国家自然科学基金资助项目(59975020);浙江大学流体传动及控制国家重点实验室开放基金

摘　　要：数控机床主轴的精度直接影响数控机床的加工精度,目前其转速要求越来越高,现有的机床附件——动力卡盘与主轴的高转速形成了矛盾,其中安全和精度是首先要考虑的因素。分析了动力卡盘对加工精度的影响,针对回转油缸配流问题对提高动力卡盘转速的限制,将配流副的问题归结为端面油膜密封技术问题,为动力卡盘的高速化提供了参考,也为数控机床高速切削下的加工精度问题提供了解决途径。The precision of principal axis directly affects the machining precision of numerical control machine tool. At the present time the rotating speed of principal axis is getting higher and higher. But the existing accessory of machine tool—— power chuck conflicts with the high speed principal axis. Safety and precision are main factors to be concerned. The effect of power chuck on the machining precision is analyzed. The oil allocating components of rotating cylinder restrict the speed improvement of power chuck. In order to solve this problem, the seal at the oil allocating components is classified as oil film face seal. So oil film face seal technologies provide certain way for the high speed power chuck.

关 键 词：数控机床 精度 主轴 动力卡盘 端面油膜密封 

分 类 号：TH16[机械工程—机械制造及自动化]