A Teaching System of Force Control Using a Game Joystick for a Polishing Robot

Fusaomi Nagata, Keigo Watanabe

Research output: Contribution to journalArticle

Abstract

In this paper, a teaching system of force control is proposed for a polishing robot using a game joystick. The teaching process is as follows: first, a zigzag path considered according to both sizes of each work and polishing tool is prepared; next, the polishing robot, in which an impedance model following force control method is incorporated, profiles the surface of the work using the zigzag path. The operator has only to control the orientation of the polishing tool using a game joystick so that the tool and work can be in contact each other, keeping the desired relation of position and orientation. Since the impedance model following force controller keeps the contact force to be a desired value, the operator has to give no attention to a sudden over-load or non-contact state. The desired trajectory is automatically obtained as the data including both continuous information of the position and orientation along the zigzag path on the object’s surface. After all, the robot can achieve the polishing task without any assists of the operator by referring the acquired trajectory.

Original languageEnglish
Pages (from-to)767-774
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume67
Issue number655
DOIs
Publication statusPublished - 2001
Externally publishedYes

Fingerprint

Force control
Polishing
Teaching
Robots
Trajectories
Controllers

Keywords

  • Force Control
  • Impedance Control
  • Joystick Teaching
  • Manipulator
  • Mechatronics and Robotics
  • Polishing Robot
  • Profiling Control
  • Robot

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

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title = "A Teaching System of Force Control Using a Game Joystick for a Polishing Robot",
abstract = "In this paper, a teaching system of force control is proposed for a polishing robot using a game joystick. The teaching process is as follows: first, a zigzag path considered according to both sizes of each work and polishing tool is prepared; next, the polishing robot, in which an impedance model following force control method is incorporated, profiles the surface of the work using the zigzag path. The operator has only to control the orientation of the polishing tool using a game joystick so that the tool and work can be in contact each other, keeping the desired relation of position and orientation. Since the impedance model following force controller keeps the contact force to be a desired value, the operator has to give no attention to a sudden over-load or non-contact state. The desired trajectory is automatically obtained as the data including both continuous information of the position and orientation along the zigzag path on the object’s surface. After all, the robot can achieve the polishing task without any assists of the operator by referring the acquired trajectory.",
keywords = "Force Control, Impedance Control, Joystick Teaching, Manipulator, Mechatronics and Robotics, Polishing Robot, Profiling Control, Robot",
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