Study on the Structural Design and Control of Modular Magnetic Suction Five-finger Dexterous Hand

In order to solve the problems of low freedom of five fingers dexterous hand and complicated disassembly and installation, a modular, easy disassembly and installation, direct drive 11 degrees of freedom five fingers dexterous hand is designed. Each finger joint has a rotation range of at least ±90°...

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Main Author: Chengjun Si
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2021-03-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.03.028
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author Chengjun Si
author_facet Chengjun Si
author_sort Chengjun Si
collection DOAJ
description In order to solve the problems of low freedom of five fingers dexterous hand and complicated disassembly and installation, a modular, easy disassembly and installation, direct drive 11 degrees of freedom five fingers dexterous hand is designed. Each finger joint has a rotation range of at least ±90°. Through the special design of the rotation angle of the thumb, the left/right hand mode of the dexterous hand can be directly switched and both sides can be grasped at the same time. A five-finger dexterous hand prototype is made through 3D printing. Aiming at the complex control system caused by multiple sensors of the dexterous hand at present, the current feedback control algorithm is proposed, through signal acquisition and post-processing of the motor drive current, the mathematical model of current-rotation angle-fingertip force is established, and the grasping experiment is carried out. The results show that the designed modular dexterous hand has strong grasping ability, and the control algorithm of current feedback can control the movement state and grasping force of the dexterous hand, and complete the target grab operation.
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institution Kabale University
issn 1004-2539
language zho
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publisher Editorial Office of Journal of Mechanical Transmission
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series Jixie chuandong
spelling doaj-art-0666981b95d042b89c9d6eb243f44daf2025-01-10T14:53:48ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392021-03-01451711767491979Study on the Structural Design and Control of Modular Magnetic Suction Five-finger Dexterous HandChengjun SiIn order to solve the problems of low freedom of five fingers dexterous hand and complicated disassembly and installation, a modular, easy disassembly and installation, direct drive 11 degrees of freedom five fingers dexterous hand is designed. Each finger joint has a rotation range of at least ±90°. Through the special design of the rotation angle of the thumb, the left/right hand mode of the dexterous hand can be directly switched and both sides can be grasped at the same time. A five-finger dexterous hand prototype is made through 3D printing. Aiming at the complex control system caused by multiple sensors of the dexterous hand at present, the current feedback control algorithm is proposed, through signal acquisition and post-processing of the motor drive current, the mathematical model of current-rotation angle-fingertip force is established, and the grasping experiment is carried out. The results show that the designed modular dexterous hand has strong grasping ability, and the control algorithm of current feedback can control the movement state and grasping force of the dexterous hand, and complete the target grab operation.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.03.028ModularMagnetic suction jointCurrent feedback algorithmDouble side grasp
spellingShingle Chengjun Si
Study on the Structural Design and Control of Modular Magnetic Suction Five-finger Dexterous Hand
Jixie chuandong
Modular
Magnetic suction joint
Current feedback algorithm
Double side grasp
title Study on the Structural Design and Control of Modular Magnetic Suction Five-finger Dexterous Hand
title_full Study on the Structural Design and Control of Modular Magnetic Suction Five-finger Dexterous Hand
title_fullStr Study on the Structural Design and Control of Modular Magnetic Suction Five-finger Dexterous Hand
title_full_unstemmed Study on the Structural Design and Control of Modular Magnetic Suction Five-finger Dexterous Hand
title_short Study on the Structural Design and Control of Modular Magnetic Suction Five-finger Dexterous Hand
title_sort study on the structural design and control of modular magnetic suction five finger dexterous hand
topic Modular
Magnetic suction joint
Current feedback algorithm
Double side grasp
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.03.028
work_keys_str_mv AT chengjunsi studyonthestructuraldesignandcontrolofmodularmagneticsuctionfivefingerdexteroushand