학술논문
Torsion-Induced Compliant Joints and its Application to Flat-Foldable and Self-Assembling Robotic Arm
Document Type
Periodical
Source
IEEE Robotics and Automation Letters IEEE Robot. Autom. Lett. Robotics and Automation Letters, IEEE. 8(11):7759-7766 Nov, 2023
Subject
Language
ISSN
2377-3766
2377-3774
2377-3774
Abstract
The joint design of origami-inspired robots is one of the most distinctive features that distinguishes them from conventional robots. A joint design using material's compliance enables origami robots to implement complex transformational movements in a lightweight and simple manner. However, utilizing the continuum bending mode of materials brings critical problems, including undesired movements and joint radius. This study introduces a solution to these problems through a torsion-based compliant joint (T-C joint) design, which utilizes the torsion deformation of materials. The potential of the T-C joint is demonstrated in a flat-foldable and self-assembling robotic arm, providing its applicability in environments with form-factor limitations and minimal human intervention. The robotic arm—comprising links, joints, and a gripper—can fold into a flat state, deploy with precision and minimal weight, and effectively manipulate target objects. This demonstration shows the real-world application of the proposed joint design.