DISPOSITIVO DI AZIONAMENTO A VELOCITA VARIABILE PER MACCHINE UTENSILI

摘要

A Z-axis drive assembly for a turret machining center incorporates a variable speed DC motor mounted on a vertically adjustable carriage and connected through a harmonic drive unit to rotate a pinion. The pinion forms part of a rack and pinion mechanism, for controlling the vertical elevation of the rack relative to the carriage.