Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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A Study on Implementation of Special-Purpose Manipulator for Home Service Robot

홈 서비스 로봇을 위한 전용 머니퓰레이터의 구현에 관한 연구

  • Kim, Seung-Woo (Dept. of Electrical Information Engineering, Soonchunhyang University) ;
  • Kim, Hi-Jun (Dept. of Electrical Information Engineering, Soonchunhyang University)
  • 김승우 (순천향대학교 전자정보공학과) ;
  • 김하이준 (순천향대학교 전자정보공학과)
  • Received : 2011.10.05
  • Accepted : 2011.11.10
  • Published : 2011.11.30
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Abstract

A specialized anthropomorphic robot manipulator which can be attached to the housemaid robot McBot II, is developed In this paper. This built-in type manipulator consists of both arms with 3 DOF (Degree of Freedom) each and both hands with 3 DOF each. The robotic arm is optimally designed to satisfy both the minimum mechanical size and the maximum workspace. Minimum mass and length are required for the built-in cooperated-arms system. But that makes the workspace so small. This paper proposes optimal design method to overcome the problem by using neck joint to move the arms horizontally forward/backward and waist joint to move them vertically up/down. The robotic hand, which has two fingers and a thumb, is also optimally designed in task-based concept. Finally, the good performance of the developed manipulator is confirmed through live test of tasks.

본 논문에서는 홈서비스 로봇인 맥봇 II(McBot II)의 빌트인(Built-in) 로봇 팔과 핸드를 설계한다. 이 빌트인 타입의 로봇 머니퓰레이터는 각각 3 DOF(Degree-of-Freedoms)의 로봇팔과 3 DOF의 로봇핸드로 구성되어 진다. 제한된 공간에서 인간과 함께 생활하는 홈서비스 로봇에 탑재되는 머니퓰레이터는 최소의 로봇 크기와 최대의 작업 공간이라는 상반된 설계 스펙이 요구되어 진다. 즉, 최소의 질량과 팔 길이에도 불구하고 효율적 작업을 위한 공간 확보가 필요한 것이다. 본 논문에서는 이와 같은 상반된 문제를 해결하기 위하여 수직 방향으로 움직이는 로봇 허리 구조와 수평방향의 전후방으로 이동할 수 있는 어깨 관절을 이용한 태스크 기반의 설계 방법을 제안한다. 또한, 양손 협업시스템인 로봇 핸드도 4절 링크 핑거를 이용한 작업 기반 설계를 시도한다. 끝으로 본 논문에서는 구현된 빌트인 머니퓰레이터의 실제 동작 실험을 통하여 그 성능을 확인한다.

Keywords

References

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