摘要
介绍了一种在气浮主轴与伺服电动机之间使用的拨叉式柔性连接机构,其采用弹性联轴器和软拨爪两级柔性环节。此结构只传递扭矩不传递偏移力,消除了电动机力对主轴回转精度的影响,并通过实验验证,此种拨叉机构和伺服电动机组合驱动可实现微米级平面度和纳米级粗糙度的加工。采用此种连接机构,降低了电动机的回转精度要求和同轴度安装要求,提高了电动机驱动气浮主轴的回转精度,相对于力矩电动机驱动形式,其结构简单,拆装方便。
A fork type flexible connection mechanism is introduced in this paper, which is used between an air bear- ing spindle and servo motor, adopting the elastic coupling and soft claw two - stage flexible link. The structure of the connection mechanism only passes torque, and eliminates the influence on the accuracy of spindle motor force. An experiment is done, and proves that the fork structure and servo motor drive could achieve micron grade nanoscale roughness and flatness of processing. Using the connection mechanism, the motor rotation accuracy and coaxial degree installation requirements are reduced, and the motor driven af- ter air bearing spindle rotation accuracy is improved. Compared with the torque motor drive form, the structure of fork type flexible connection mechanism is simple, and is easy to tear open outfit.
出处
《制造技术与机床》
北大核心
2015年第7期61-63,共3页
Manufacturing Technology & Machine Tool
基金
国防基础科研计划"大口径KDP晶体材料超精密高效率加工技术研究"课题资助(A1520133005)
关键词
拨叉
气浮主轴
回转精度
柔性连接
机构
fork
air bearing spindle
rotation accuracy
flexible connection
mechanism
