Cam ram

Details Cam ram Cam ram

B - Operations, Transporting

25

B

B25B 5/00 (2006.01) B25B 5/08 (2006.01)

Patent

CA 2195352

A clamp for clamping a workpiece comprises a base member (101), a clamping member (103) mounted on the base member for linear movement relative thereto and a drive member (102) mounted on the base member for rotary movement relative thereto. First and second cam elements (114, 138) comprising a face cam are provided on the drive member and the base member, at least one of said cam elements including at least two portions of different pitch. The arrangement is such that rotation of the drive member (102) relative to the base member (101) causes linear movement of the clamping member (103) relative to the base member.

Un serre-joint pour assujettir une pièce à travailler, comprenant une base (101), une unité de serrage (103) montée sur la base pour permettre un mouvement linéaire par rapport à ladite base (101), et un élément d'entraînement (102) monté, lui aussi, à la base pour permettre un déplacement rotatif par rapport à la base. Les premier et deuxième éléments de la came (114, 138), qui constituent des cames confrontées et dont au moins un comporte au moins une des parties à pas différent, figurent sur le mécanisme d'entraînement et sur la base. Cette disposition permet à une rotation de l'élément d'entraînement (102) relative à la base (101) d'imprimer un mouvement linéaire à l'unité de serrage (103), relativement à la base.

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