并联微动机构的柔性设计  

Flexibility Design of Parallel Micromanipulator

作　　者：罗漪菁[1] 李丽[1] 余明浪[2] 

机构地区：[1]成都理工大学核技术与自动化工程学院,四川成都610059 [2]成都大学,四川成都610059

出　　处：《机械工程与自动化》2008年第4期132-134,共3页Mechanical Engineering & Automation

摘　　要：由于并联微动机构应用在特殊场合,故对其定位精度提出了极高的要求。运动副的间隙和摩擦是影响机构精度的主要因素,提出了采用无间隙、无摩擦的柔性铰链作为微动机构的运动副。通过分析柔性铰链结构尺寸与性能的关系,合理选择了铰链材料和几何尺寸。并以带柔性铰链的Stewart六自由度平台为设计实例,证明了柔性铰链在微动机构中的应用是成功的。Due to application on special occasions, the parallel micromanipulator puts forward a high demand for its positioning accuracy. Clearance and friction are major influence factors on the accuracy. The paper used flexure hinges with zero clearance and zero friction as kinematic joins of the micromanipulator. By analyzing the relation between structure size and hinge performance,it chose the material and parameters reasonably. Taking the 6-DOF Stewart platform as example,it applied the flexure hinge to micromanipulator successfully.

关 键 词：并联微动机构 运动副 间隙 摩擦 柔性铰链 

分 类 号：TH13[机械工程—机械制造及自动化]