RETRACTABLE SHANK FOR MACHINE TOOLS AND USE OF SAID RETRACTABLE SHANK IN MACHINE TOOLS

摘要

The invention relates to a retractable shank for machine tools and to the use of said retractable shank in machine tools made up of a shank core (13), on which is arranged at least one front unit made up of a rotating bush (17) connected, via a set of bearings (16), relative to a stationary portion of the structure of the machine, said front unit being removable by extraction towards the outside or by moving towards the inside, leaving a space (19) which can house the rear rotary shaft of the headstock.