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Study on the characteristics of a homemade differential-velocity-type compliant joint for robotic manipulators

  • Jwu Sheng Hu
  • , Cheng Hua Wu*
  • , Yi Jeng Tsai
  • , Chung Hsien Kuo
  • *Corresponding author for this work
  • National Yang Ming Chiao Tung University
  • Industrial Technology Research Institute of Taiwan
  • National Taiwan University of Science and Technology

Research output: Contribution to journalJournal Article peer-review

3 Scopus citations

Abstract

Design of a new differential-velocity-type compliant joint with two motors is proposed for robotic manipulators. The speed/output torque of the differential-velocity-type joint is synthesized by controlling the differential speeds of a pair of actuators. Descriptions of the design concept, theoretical analysis, and the experiments are presented in this article. The experimental results showed that (1) the stiffness of the differential-velocity-type joint can be regulated by changing the speeds of both motors, (2) the differential-velocity-type joint actually reduced 7.9%-15.7% time compared with the single-drive joint when performing five cycles of reciprocation, and (3) a new design of delta-type robot with differential-velocity-type driving modules was developed for verification. The experimental results showed that the differential-velocity-type delta robot can perform flexible assembly operations within a 0.028-mm tolerance.

Original languageEnglish
Pages (from-to)1-16
Number of pages16
JournalAdvances in Mechanical Engineering
Volume7
Issue number9
DOIs
StatePublished - 03 09 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Author(s) 2015.

Keywords

  • Compliant joint
  • differential velocity
  • robot

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