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Development of Impedance Control for Human/Robot Interactive Handling of Heavy Parts and Loads

[+] Author Affiliations
Jari M. Ahola, Jukka Koskinen, Tuomas Seppälä, Tapio Heikkilä

VTT Technical Research Centre of Finland Ltd, Oulu, Finland

Paper No. DETC2015-47045, pp. V009T07A066; 8 pages
doi:10.1115/DETC2015-47045
From:
  • ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 9: 2015 ASME/IEEE International Conference on Mechatronic and Embedded Systems and Applications
  • Boston, Massachusetts, USA, August 2–5, 2015
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5719-9
  • Copyright © 2015 by ASME

abstract

This paper introduces a control system for human/robot interactive handling of heavy parts and loads. The aim of the study was to demonstrate the feasibility of human/robot cooperative handling of heavy parts and loads with a robot as a load carrier and a human as a motion guide. The control system included a medium sized industrial robot and two 6-dof F/T sensors adjusting the robot motion via parallel impedance compensators. This paper shows the principles for designing stable impedance compensators for hard contact with the environment as well as for soft contact with the human operator. The impedance compensators were evaluated in MATLAB Simulink and the target impedance models were verified with the real robot system. The result was a pilot system for flexible handling of heavy and large-size parts which can substantially improve the production performance and ergonomic work conditions in mechanical and manufacturing shops.

Copyright © 2015 by ASME
Topics: Robots , Stress

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