Gripping mechanism

B - Operations – Transporting – 25 – J

Patent

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Details

B25J 15/02 (2006.01) B25J 9/14 (2006.01) B25J 15/10 (2006.01) B25J 18/02 (2006.01)

Patent

CA 2103039

The invention relates to a gripper mechanism for a manipulator or the like, having at least one movable gripper finger (6) swingable around a slide axis, as coupler of a kinematically multi-member positive guide mechanism (1, 2, 3, 4, 5, 6), which contains at least one slider/crank mechanism (1, 2, 3, 4) as actuating unit which has a crank (2) acting at one end on a first link (3) and pivoted at the other end of a slide rod (1), and a slide (4) which is guided on the slide rod (1) and abuts against the first link (3), a second link (5) being supported axially displaced therefrom on the slide (4) and both links (3, 5) of the guide mechanism acting on the gripper finger (6), the slide rod (1) carrying out no movement in the direction of the slide axis upon the movement of the gripper, and its strives for and achieves a flexurally as well as torsionally stiff development of such a gripper mechanism by a slide rod (1) which is formed of several decentrally arranged rods (7) as cage.

Cette invention concerne un mécanisme de préhension de robot manipulateur ou dispositif analogue comportant au moins un doigt de préhension (6) mobile pivotant autour d'un axe de coulissement et agissant comme accouplement d'un mécanisme multi-élément de guidage à haute stabilité dynamique (1, 2, 3, 4, 5, 6) qui comporte au moins une liaison glissière articulée (1, 2, 3, 4) servant d'actionneur comprenant une biellette (2) agissant à un bout d'une première liaison (3) et s'articulant à l'autre bout à une glissière (1), un coulisseau (4) guidé sur la glissière (1) et s'appuyant contre la première liaison (3) et une deuxième liaison (5) décalée axialement par rapport à la première sur le coulisseau (4), les deux liaisons (3, 5) du mécanisme de guidage agissant sur le doigt de préhension (6) sans que la glissière (1) ne se déplace dans la direction de l'axe de coulissement au déplacement du préhenseur. L'objet de l'invention est caractérisé par une rigidité en flexion et en torsion attribuable à une glissière (1) formé de plusieurs barres décentrées (7) constituant une cage.

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