Study on the characteristics of a homemade differential-velocity–type compliant joint for robotic manipulators

Design of a new differential-velocity–type compliant joint with two motors is proposed for robotic manipulators. The speed/output torque of the differential-velocity–type joint is synthesized by controlling the differential speeds of a pair of actuators. Descriptions of the design concept, theoretic...

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Main Authors: Jwu-Sheng Hu, Cheng-Hua Wu, Yi-Jeng Tsai, Chung-Hsien Kuo
Format: Article
Language:English
Published: SAGE Publishing 2015-09-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814015603668
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author Jwu-Sheng Hu
Cheng-Hua Wu
Yi-Jeng Tsai
Chung-Hsien Kuo
author_facet Jwu-Sheng Hu
Cheng-Hua Wu
Yi-Jeng Tsai
Chung-Hsien Kuo
author_sort Jwu-Sheng Hu
collection DOAJ
description Design of a new differential-velocity–type compliant joint with two motors is proposed for robotic manipulators. The speed/output torque of the differential-velocity–type joint is synthesized by controlling the differential speeds of a pair of actuators. Descriptions of the design concept, theoretical analysis, and the experiments are presented in this article. The experimental results showed that (1) the stiffness of the differential-velocity–type joint can be regulated by changing the speeds of both motors, (2) the differential-velocity–type joint actually reduced 7.9%−15.7% time compared with the single-drive joint when performing five cycles of reciprocation, and (3) a new design of delta-type robot with differential-velocity–type driving modules was developed for verification. The experimental results showed that the differential-velocity–type delta robot can perform flexible assembly operations within a 0.028-mm tolerance.
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spelling doaj.art-782dd3ad0f044eca9d7ec206cfc3c83b2022-12-21T23:56:56ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402015-09-01710.1177/168781401560366810.1177_1687814015603668Study on the characteristics of a homemade differential-velocity–type compliant joint for robotic manipulatorsJwu-Sheng Hu0Cheng-Hua Wu1Yi-Jeng Tsai2Chung-Hsien Kuo3Department of Electrical Engineering, National Chiao Tung University, Hsinchu, Taiwan, R.O.CDepartment of Electrical Engineering, National Chiao Tung University, Hsinchu, Taiwan, R.O.CMechanical and Systems Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan, R.O.CDepartment of Electrical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.CDesign of a new differential-velocity–type compliant joint with two motors is proposed for robotic manipulators. The speed/output torque of the differential-velocity–type joint is synthesized by controlling the differential speeds of a pair of actuators. Descriptions of the design concept, theoretical analysis, and the experiments are presented in this article. The experimental results showed that (1) the stiffness of the differential-velocity–type joint can be regulated by changing the speeds of both motors, (2) the differential-velocity–type joint actually reduced 7.9%−15.7% time compared with the single-drive joint when performing five cycles of reciprocation, and (3) a new design of delta-type robot with differential-velocity–type driving modules was developed for verification. The experimental results showed that the differential-velocity–type delta robot can perform flexible assembly operations within a 0.028-mm tolerance.https://doi.org/10.1177/1687814015603668
spellingShingle Jwu-Sheng Hu
Cheng-Hua Wu
Yi-Jeng Tsai
Chung-Hsien Kuo
Study on the characteristics of a homemade differential-velocity–type compliant joint for robotic manipulators
Advances in Mechanical Engineering
title Study on the characteristics of a homemade differential-velocity–type compliant joint for robotic manipulators
title_full Study on the characteristics of a homemade differential-velocity–type compliant joint for robotic manipulators
title_fullStr Study on the characteristics of a homemade differential-velocity–type compliant joint for robotic manipulators
title_full_unstemmed Study on the characteristics of a homemade differential-velocity–type compliant joint for robotic manipulators
title_short Study on the characteristics of a homemade differential-velocity–type compliant joint for robotic manipulators
title_sort study on the characteristics of a homemade differential velocity type compliant joint for robotic manipulators
url https://doi.org/10.1177/1687814015603668
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