Vibratory machining device
Dispositif d'usinage vibratoire
Brevet
Author
MORARU, GeorgeMASCIANTONIO, UgoAbstract
The invention relates to a machining device comprising a supporting structure, a transmission shaft (3) and a drive mechanism (1) comprising a first meshing member (13) able to drive the rotation of said shaft about the axis (A) thereof, a second meshing member (17) in a helicoidal connection with said shaft in order to drive the translational movement of said shaft along the axis thereof in a feed movement, dependent on the relative rotational velocity of said first and second meshing members, and means for generating axial oscillations. According to the invention, said second meshing member (17) is translationally mobile with respect to said supporting structure along the axis (A), said means of generating axial oscillations comprising an electromechanical actuator (20) mounted in a fixed frame of reference connected with said supporting structure, able to be coupled axially to said second meshing member (17) to cause it to oscillate translationally so as to superpose an axial oscillation component on said feed movement. L'invention concerne un dispositif d'usinage comprenant une structure de support, un arbre de transmission (3) et un mécanisme d'entraînement (1) comprenant un premier élément de maillage (13) apte à entraîner la rotation dudit arbre autour de l'axe (A) de celui-ci, un second élément (17) en prise dans une connexion hélicoïdale avec ledit arbre pour entraîner le mouvement de translation de ladite tige suivant l'axe de celui-ci dans un mouvement d'avance, en fonction de la vitesse de rotation relative desdits premier et deuxième engrenage, et un moyen pour générer oscillations axiales. Selon l'invention, ledit deuxième élément (17) est mobile en translation par rapport à ladite structure de support le long de l'axe (A) en prise, lesdits moyens de génération d'oscillations axiales comprenant un actionneur électromécanique (20) monté dans un cadre fixe de référence relié avec ladite structure de support, apte à être couplé axialement audit deuxième élément (17) pour l'amener à osciller en translation de façon à superposer une composante axiale d'oscillation sur ledit mouvement d'avance en prise.
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