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논문 기본 정보

자료유형
학술대회자료
저자정보
Takahiro Inoue (Tokyo Denki Univ.) Richa Hu (Tokyo Denki Univ.)
저널정보
제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2023
발행연도
2023.10
수록면
1,538 - 1,541 (4page)

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This paper presents a novel three-DOF robotic finger that enables fast tapping motion applicable in piano playing and keyboard typing, which consists of metacarpophalangeal(MCP), proximal interphalangeal(PIP), and distal interphalangeal(DIP) joints. In previous study, we developed Twisted Round-belt Actuator(TbA) capable of producing contraction force by twisting a small-diameter round-belt having high elasticity, and empirically derived a contraction force model applicable only to two-DOF robotic finger. This study, therefore, derives such force model available for an extended three-DOF finger mechanism that is containing Variable-pitch Screw Module(VpSM) newly designed in this paper. This module is able to eliminate irregular twist phenomenon resulting in unexpected discontinuous movement in finger joints. Thus, we first describe the detail mechanism of the three-DOF robotic finger and indicate great advantage of the finger, which is obtained by combining the TbA and VpSM. Finally, we demonstrate a new force feedback method based on fingertip force estimation without any force/pressure sensors, in which the fingertip force can be accurately estimated by using mathematical model of the contraction force by TbA with VpSM.

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Abstract
1. INTRODUCTION
2. RELATEDWORKS
3. FORMULATION OF FINGERTIP FORCE MODEL BASED ON TBA MECHANISM
4. FINGERTIP FORCE CONTROL EXPERIMENT USING A THREE-JOINT ROBOT FINGER
5. CONCLUDING REMARKS
REFERENCES

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