Design and static testing of a compact distributed-compliance gripper based on flexure motion

• Autorzy: Hao G. , Hand R. B.

Identyfikatory

DOI

10.1016/j.acme.2016.04.011

• Języki publikacji: EN

Abstrakty

EN

There are precision issues with traditional rigid-body grippers due to their nature in presence of joints’ backlash and friction. This paper presents a macroscale compliant gripper to eliminate these issues for the applications in handing delicate/brittle materials such as powder granular or manipulating sub-millimetre objects such as optical fibre and micro-lens. The compliant gripper is obtained from a 2-PRRP (P: prismatic; R: revolute) kinematic mechanism, and uses distributed-compliance joints for avoiding stress-concentration and enabling large range of motion. A very compact design is achieved by using a position space principle. The compliant gripper is modelled, fabricated, followed by comprehensive testing for characterising relationships between the input displacement/force and output displacement and between the input displacement and displacement amplification ratio, and for analysing hysteresis during loading and unloading. The experimental results are compared with finite element analysis (FEA) model and linear analytical model. The testing results have suggested good performance characteristics of this compliant gripper such as a nearly linear relationship between the input and output, a nearly constant amplification ratio for closing the jaw, and negligible hysteresis error.

Słowa kluczowe

EN

gripper; compliant mechanism; compactness; testing; distributed-compliance

PL

chwytak; narzędzia chirurgiczne; robotyka

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2016
• Tom: Vol. 16, no. 4
• Strony: 708--716
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr.

Twórcy

autor

Hao G.

• School of Engineering-Electrical and Electronic Engineering, University College Cork, Cork, Ireland

autor

Hand R. B.

• School of Engineering-Electrical and Electronic Engineering, University College Cork, Cork, Ireland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę