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Design and analysis of a novel parallel manipulator for pick-and-place applications

  • Bin Liao
  • , Yunjiang Lou*
  • , Zhibin Li
  • , Jinbo Shi
  • , Xin Chen
  • *Corresponding author for this work
  • Harbin Institute of Technology Shenzhen
  • Shenzhen Polytechnic
  • Dongguan QKM Automation Company
  • Shanghai Jiao Tong University
  • Guangdong University of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a novel 4 degree-of-freedom Schönflies-motion parallel manipulator, which is an upgraded design of a 3 degree-of-freedom planar parallel manipulator. The manipulator consists of three identical RRPaR (R: a revolute joint, Pa: a planar parallelogram) and one RRRRR subchain. The three actuated joints, the first revolute joints, of RRPaR subchains are designed to have a common rotation axis, and the actuated joint (the second R joint) axis of the RRRRR subchain is perpendicular to the common rotation axis. This architecture contributes large rotationally-symmetric workspace and unlimited rotational capability of the end-effector. The fundamental demerit of typical parallel manipulators, limited workspace, is completely removed. In this paper, the loop-closure equations are derived. The inverse and forward kinematics and singularity analysis are discussed. An algebraic derivation of the dextrous workspace is presented.

Original languageEnglish
Pages (from-to)1595-1606
Number of pages12
JournalMeccanica
Volume51
Issue number7
DOIs
StatePublished - 1 Jul 2016
Externally publishedYes

Keywords

  • Co-axis
  • Kinematics
  • Parallel manipulator
  • Pick-and-place
  • Singularity
  • Workspace

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