Patent ID: 9616501
Date: 2017-04-11
CPC Classifications: B23B,Y10T

Claim:
1. Apparatus for feeding bars to a machine tool, comprising: an end suitable for being placed in a position adjacent to a working zone in which spindle means of said machine tool are provided; a drum element near said end and rotatable around a rotation axis, movable supporting means provided on said drum element and suitable for supporting and guiding a bar parallel to said rotation axis, said movable supporting means being slidably drivable on said drum element parallel to said rotation axis between a disengagement retracted configuration, in which said movable supporting means are gathered nearer the end to enable a respective bar, to be machined, to be loaded, and an engagement extended configuration, in which said movable supporting means are spaced away from the end and are distributed along a supporting zone, opposite said working zone with respect to said drum element, to engage said respective bar to be supported and guided during machining, wherein it further comprises tubular housing and guiding means for receiving internally said movable supporting means, said tubular housing and guiding means being mounted on the side of said drum element that faces said working zone and being shaped for coupling with said spindle means, and in that said movable supporting means comprise telescopic tubular means and supporting and guiding carriage elements for said telescopic tubular means that are drivable by dragging means for being moved from said disengagement retracted configuration to said engagement extended configuration and vice versa, said telescopic tubular means being configured for being received, in said disengagement retracted configuration, inside said tubular housing and guiding means, said telescopic tubular means defining in said engagement extended configuration, an elongated and cylindrical containing structure configured for enclosing and supporting in a distributed extended and continuous manner a respective bar along the entire supporting zone.