Soft Gripper with EGaIn Soft Sensor for Detecting Grasp Status

With the Fourth Industrial Revolution, many factories aim for efficient mass production, and robots are being used to reduce human workloads. In recent years, the field of gripper robots with a soft structure that can grip and move objects without damaging them has attracted considerable attention....

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Main Authors: Geun-Sik Cho, Yong-Jai Park
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/15/6957
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author Geun-Sik Cho
Yong-Jai Park
author_facet Geun-Sik Cho
Yong-Jai Park
author_sort Geun-Sik Cho
collection DOAJ
description With the Fourth Industrial Revolution, many factories aim for efficient mass production, and robots are being used to reduce human workloads. In recent years, the field of gripper robots with a soft structure that can grip and move objects without damaging them has attracted considerable attention. This paper proposes a variable-stiffness soft gripper, based on previous designs, with an added silicone coating for increased friction and an EGaIn soft sensor for monitoring grip forces. The variable-stiffness structure used in this study was constructed by connecting soft structures to rigid structures and using tendons fixed to the rigid structures. Furthermore, a more responsive EGaIn soft sensor compared to existing sensors was designed by adding bumps to the path traced by the alloy. After selecting the appropriate fingertip shape, changes in the output of the EGaIn soft sensor corresponding to the object held by the soft gripper were observed, confirming that the strength of the device could be changed according to the intended purpose.
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spelling doaj.art-7d16d5bcb0da4e018a2498ba8b0d0fe32023-11-22T05:22:13ZengMDPI AGApplied Sciences2076-34172021-07-011115695710.3390/app11156957Soft Gripper with EGaIn Soft Sensor for Detecting Grasp StatusGeun-Sik Cho0Yong-Jai Park1Robot & Mechanism Lab, Biohealth-Machinery Convergence Engineering, Kangwon National University, Chuncheon 24341, KoreaRobot & Mechanism Lab, Biohealth-Machinery Convergence Engineering, Kangwon National University, Chuncheon 24341, KoreaWith the Fourth Industrial Revolution, many factories aim for efficient mass production, and robots are being used to reduce human workloads. In recent years, the field of gripper robots with a soft structure that can grip and move objects without damaging them has attracted considerable attention. This paper proposes a variable-stiffness soft gripper, based on previous designs, with an added silicone coating for increased friction and an EGaIn soft sensor for monitoring grip forces. The variable-stiffness structure used in this study was constructed by connecting soft structures to rigid structures and using tendons fixed to the rigid structures. Furthermore, a more responsive EGaIn soft sensor compared to existing sensors was designed by adding bumps to the path traced by the alloy. After selecting the appropriate fingertip shape, changes in the output of the EGaIn soft sensor corresponding to the object held by the soft gripper were observed, confirming that the strength of the device could be changed according to the intended purpose.https://www.mdpi.com/2076-3417/11/15/6957variable stiffnessgrippersoft roboticsEGaIn soft sensor
spellingShingle Geun-Sik Cho
Yong-Jai Park
Soft Gripper with EGaIn Soft Sensor for Detecting Grasp Status
Applied Sciences
variable stiffness
gripper
soft robotics
EGaIn soft sensor
title Soft Gripper with EGaIn Soft Sensor for Detecting Grasp Status
title_full Soft Gripper with EGaIn Soft Sensor for Detecting Grasp Status
title_fullStr Soft Gripper with EGaIn Soft Sensor for Detecting Grasp Status
title_full_unstemmed Soft Gripper with EGaIn Soft Sensor for Detecting Grasp Status
title_short Soft Gripper with EGaIn Soft Sensor for Detecting Grasp Status
title_sort soft gripper with egain soft sensor for detecting grasp status
topic variable stiffness
gripper
soft robotics
EGaIn soft sensor
url https://www.mdpi.com/2076-3417/11/15/6957
work_keys_str_mv AT geunsikcho softgripperwithegainsoftsensorfordetectinggraspstatus
AT yongjaipark softgripperwithegainsoftsensorfordetectinggraspstatus