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Design of a partially-coupled self-adaptive robotic finger optimized for collaborative robots

Lionel Birglen

Article de revue (2019)

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Abstract

This paper presents the design and optimization of a self-adaptive, a.k.a. underactuated, finger targeted to be used with collaborative robots. Typical robots, whether collaborative or not, mostly rely on standard translational grippers for pick-and-place operations. These grippers are constituted from an actuated motion platform on which a set of jaws is rigidly attached. These jaws are often designed to secure a precise and limited range of objects through the application of pinching forces. In this paper, the design of a self-adaptive robotic finger is presented which can be attached to these typical translational gripper to replace the common monolithic jaws and provide the gripper with shape-adaptation capabilities without any control or sensors. A new design is introduced here and specially optimized for collaborative robots. The kinetostatic analysis of this new design is first discussed and then followed by the optimization of relevant geometric parameters taking into account the specificities of collaborative robots. Finally, a practical prototype attached to a very common collaborative robot is demonstrated. While the resulting finger design could be attached to any translational gripper, specifically targeting collaborative robots as an application allows for more liberty in the choice of certain design parameters and more constraints for others.

Mots clés

grasping, robotic hand, collaborative robots, underactuation

Sujet(s): 2100 Génie mécanique > 2100 Génie mécanique
2600 Robotique > 2600 Robotique
2600 Robotique > 2602 Robots articulés
Département: Département de génie mécanique
Organismes subventionnaires: CRSNG / NSERC
Numéro de subvention: RGPIN327005
URL de PolyPublie: https://publications.polymtl.ca/3954/
Titre de la revue: Autonomous Robots (vol. 43, no 2)
Maison d'édition: Springer
DOI: 10.1007/s10514-018-9802-x
URL officielle: https://doi.org/10.1007/s10514-018-9802-x
Date du dépôt: 14 août 2019 16:44
Dernière modification: 25 sept. 2024 19:04
Citer en APA 7: Birglen, L. (2019). Design of a partially-coupled self-adaptive robotic finger optimized for collaborative robots. Autonomous Robots, 43(2), 523-538. https://doi.org/10.1007/s10514-018-9802-x

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