• CN:11-2187/TH
  • ISSN:0577-6686

›› 2010, Vol. 46 ›› Issue (1): 30-36.

• 论文 • 上一篇    下一篇

RGRR-Ι构造混联6R机器人

姜铭;易红;李鹭扬;倪中华;周建华   

  1. 东南大学机械工程学院;扬州大学机械工程学院
  • 发布日期:2010-01-05

Hybrid Serial-parallel 6R Robot Made of RGRR-Ι

JIANG Ming;YI Hong;LI Luyang;NI Zhonghua;ZHOU Jianhua   

  1. College of Mechanical Engineering, Southeast University College of Mechanical Engineering, Yangzhou University
  • Published:2010-01-05

摘要: 新型并联双自由度转动关节(RGRR-Ⅰ)活动构件少、工作空间大,利用RGRR-Ⅰ构造混联6R机器人可以实现高刚度、大工作空间、机构紧凑等。提出混联机构的求解新方法,即建立少自由度并联机构的运动坐标参数与机构运动输入参数之间的关系,把混联机构的求解转化为各少自由度并联机构的求解和运动坐标参数之间的串联求解,降低了求解难度,可以方便地推导出位置的正解和反解。此方法对其他混联机器人的运动学分析有借鉴作用。

关键词: 并联机构, 工作空间, 混联机构, 转动, 自由度

Abstract: Since a new 2-DOF rotation parallel mechanism (RGRR-Ⅰ) has the advantages of less moving parts and large workspace, hybrid serial-parallel 6R robot is invented by using three RGRR-Ⅰ mechanisms in order to realize high stiffness as well as large workspace and compact structure. Replacing position analysis of hybrid serial-parallel mechanisms with position analysis of each less-freedom parallel machine and serial analysis of moving coordinate parameters by establishing the relation between moving coordinate parameters of less-freedom parallel machines and input parameters of machines, a new method of hybrid serial-parallel mechanisms position analysis is proposed in order to reduce the difficulty of position analysis and get result easily. It is very useful for kinematics analysis of other hybrid serial-parallel mechanisms.

Key words: Degree of freedom, Hybrid serial-parallel mechanisms, Parallel mechanisms, Rotation, Workspace

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