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Simplified Grasping and Manipulation with Dextrous Robot Hands

Author(s)
Fearing, Ronald S.
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Abstract
A method is presented for stably grasping 2 dimensional polygonal objects with a dextrous hand when object models are not avaiable. Basic constraints on object vertex angles are found for feasible grasping with two fingers. Local tactile information can be used to determine the finger motion that will reach feasible grasping locations. With an appropriate choice of finger stiffness, a hand can automatically grasp these objects with two fingers. The bounded slip of a part in a hand is shown to be valuable for adapting the fingers and object to a stable situation. Examples are given to show the ability of this grasping method to accomodate disturbance forces and to perform simple part reorientations and regrasping operations.
Date issued
1984-11-01
URI
http://hdl.handle.net/1721.1/5622
Other identifiers
AIM-809
Series/Report no.
AIM-809
Keywords
automatic grasping, force control, stable grasping, robot hands, regrasping objects, re-orienting objects, dextrous hands

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  • AI Memos (1959 - 2004)

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