Miniature Robot Finger Using a Micro Linear Ultrasonic Motor and a Closed-Loop Linkage

Shunsuke Izuhara, Tomoaki Mashimo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

To prioritize miniaturization, the actuators of micro robot hands are placed far from the end effectors, but such mechanisms restrict controllability and dexterity. We propose a miniature robot finger driven by a new micro linear ultrasonic motor as a key component for micro robot hands. It enables dexterous and multiple motions for micro hands used in limited spaces. In this paper, we build a new micro linear ultrasonic motor involving a cuboid stator with a side length of approximately 2 mm, making it one of the smallest linear motors. The micro linear ultrasonic motor prototype shows an output torque of approximately 7.75 mN at low voltage operation, which is sufficient force to handle tiny objects. The miniature finger, a closed-loop six-bar-linkage mechanism, is built by micro fabrication and connected to the motor prototype. The first demonstration of the miniature finger is shown under a high-speed camera with a high power lens.

Original languageEnglish
Title of host publication2018 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4908-4913
Number of pages6
ISBN (Electronic)9781538680940
DOIs
Publication statusPublished - Dec 27 2018
Externally publishedYes
Event2018 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2018 - Madrid, Spain
Duration: Oct 1 2018Oct 5 2018

Publication series

NameIEEE International Conference on Intelligent Robots and Systems
ISSN (Print)2153-0858
ISSN (Electronic)2153-0866

Conference

Conference2018 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2018
Country/TerritorySpain
CityMadrid
Period10/1/1810/5/18

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Computer Vision and Pattern Recognition
  • Computer Science Applications

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