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一种并-串结构机械手臂的研究

作者:时间:2014-06-11点击数:

全文下载:2013060613

梁辉,  徐辉,  郭伦

(青岛科技大学 机电工程学院,山东 青岛 266061)

 摘要:  通过对几种典型少自由度并联机构的研究,基于人体手臂的运动形式,提出了一种新的结构,即并-串结构的机械手臂。该结构具有精度高,承载能力强,工作空间大,运动灵活,较好的工作姿态能力等特点。特别适用于狭小地域空间,姿态能力要求较高的场合。对该结构的设计,利用三维软件进行建模,对该两级结构的工作空间进行分析。进一步对结构进行静力学分析,从而求出整个结构的约束反力,为并-串结构的研究提供了理论基础。

 关键词: 机械手臂; 少自由度; 并-串结构; 工作空间; 受力分析

 中图分类号: TG 502.12 文献标志码: A

 Study on the Parallel-series Structure Mechanical Arm

  LIANG Hui, XU Hui, GUO Lun

 (College of Electromechanical Engineering,Qingdao University of Science and  Technology,Qingdao 266061,China)

 Abstract: By researching on several typical lower DOF parallel mechanisms, a new type of parallel-series structure mechanical arm was proposed based on the movement from of human arm, which has the the characteristics of high accuracy, strong bearing capacity, large workspace, flexible movement, better working posture ability and so on. This structure is especially suitable for the workplace with small working space and high working gesture ability. The parallel-series structure mechanical arm was designed, the 3D model was established and the working scope of this two-level structure was analyzed, The constraint forces of the whole strucyure was obtained by statics analysis, which provide theoretical basis for studying parallel-series structure.

Key words: lower DOF; parallel-series structure; mechanical arm; working space;  force analysis

收稿日期:2013-01-06

基金项目: 国家自然科学基金资助项目(51105213).

作者简介: 梁辉(1971—),男,副教授.

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