Vorrichtung zum automatischen Abstellen des Supportvorschubs bei spanabhebenden Werkzeugmaschinen

摘要

A device for the automatic cut-off of a tool carrier feed in metal-cutting machines and particularly thread cutting and turret lathes in which a worm gear has its worm wheel linked kinematically with a mechanism for the progressive motion of the tool carrier while the worm is freely-mounted on the shaft and connected with a coaxially installed drive gear via a two-sided coupling member having large teeth which coact with teeth provided on the end surface of the worm and smaller teeth which coact with teeth located on the face of the drive gear.