Workspace Analysis of Macro/Micro Actuated Parallel Mechanism

FENG Hai-bing

doi:10.3788/OPE.20132103.0717

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Workspace Analysis of Macro/Micro Actuated Parallel Mechanism

更新时间：2020-08-12

- Workspace Analysis of Macro/Micro Actuated Parallel Mechanism
- Optics and Precision Engineering Vol. 21, Issue 3, Pages: 717-723(2013)
- 作者机构：
  
  燕山大学机械工程学院,河北秦皇岛,066004
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20132103.0717
  CLC： TP273;TP241.3
- Received：08 October 2012，
  
  Revised：22 December 2012，
  
  Published Online：20 March 2013，
  
  Published：15 March 2013
- 稿件说明：
移动端阅览
冯海兵. 并联宏/微驱动操作手工作的空间分析[J]. 光学精密工程, 2013,21(3): 717-723

FENG Hai-bing. Workspace Analysis of Macro/Micro Actuated Parallel Mechanism[J]. Editorial Office of Optics and Precision Engineering, 2013,21(3): 717-723
冯海兵. 并联宏/微驱动操作手工作的空间分析[J]. 光学精密工程, 2013,21(3): 717-723 DOI： 10.3788/OPE.20132103.0717.

FENG Hai-bing. Workspace Analysis of Macro/Micro Actuated Parallel Mechanism[J]. Editorial Office of Optics and Precision Engineering, 2013,21(3): 717-723 DOI： 10.3788/OPE.20132103.0717.

摘要

以一种应用于扫描电镜的4-HSPS/PRPUR并联宏/微驱动操作手为研究对象，对该并联机构的工作空间进行了分析。4-HSPS/PRPUR并联宏/微驱动操作手的动平台与基座之间通过4个HSPS分支和1个PRPUR分支相连，机构动平台具有3个方向的移动自由度和绕X轴和Y轴的2个转动自由度。该并联机构同时包含了宏动输入部分和微动输入部分，本文分别对该机构在宏动输入和微动输入下的定姿态工作空间和灵活姿态角工作空间进行了分析。分析表明该机构具有较大的运动能力，同时还发现中间分支的连杆尺寸对运动空间形状有较大影响。综合该机构的定姿态工作空间和灵活姿态角工作空间可知，该并联宏/微驱动机器人能够应用于平台安装空间较小，工作空间需要较大并且定位精度高的场合。得到的结果对4-HSPS/PRPUR机构的应用有重要的理论指导意义。

Abstract

The workspace of the 4-HSPS/PRPUR macro/micro actuated parallel mechanism applied to a scanning electron microscope is analyzed. The 4-HSPS/PRPUR macro/micro actuated parallel mechanism is composed of a base and a moving platform connected by four HSPS branches and a middle PRPUR branch. It has three translational degrees of freedom and two rotational degrees of freedom about the X axis and Y axis. Because the macro actuation and micro actuation are integrated together in this mechanism

this paper analyzes the constant orientation workspace and the dexterous workspace of this mechanism. The analysis shows that this mechanism can move flexibly in large workspace and the link length of the middle branch has considerable influence on the shapes of the workspaces. On the analysis of the constant orientation and dexterous workspaces of this mechanism

it demonstrates that the mechanism is suitable for the work condition of smaller platform mount space

large workspace and higher positioning accuracy. This study provides a theoretical basis for the application of the 4-HSPS/PRPUR parallel mechanism.

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references

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