压电
执行机构
工作区
压电马达
超声波电动机
运动系统
声学
重复性
定位系统
控制理论(社会学)
工程类
机械工程
计算机科学
运动(物理)
物理
电气工程
机器人
控制(管理)
数学
节点(物理)
人工智能
统计
作者
Wei Dong,Zhijiang Du,Lining Sun
标识
DOI:10.1115/mnc2007-21111
摘要
A precision compliant parallel-structure positioner is presented in this paper, which is dually driven by six piezoelectric motors and six piezoelectric ceramics respectively. This compliant system has a load capacity higher than 2 kg because the parallel mechanism is adopted as the main architecture. This system also can provide larger workspace and higher accuracy simultaneously compared with the conventional compliant positioner systems, because it perfectly integrates two kinds of piezoelectric actuators in one parallel system. The upper platform has the stroke of 10 mm in three linear motion directions and of 6 arc-degrees in three angle motion directions respectively for the adoption of piezoelectric motors as the large motion range actuators. The positioning resolution and repeatability of the upper platform is nanometer scale for the adoption of piezoelectric ceramics as the high precision actuators.
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