B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
82/10
B23B 13/00 (2006.01) B23B 15/00 (2006.01)
Patent
CA 1195156
REAR PORTION SUPPORTING MECHANISM IN APPARATUS FOR MACHINING ELONGATED WORKPIECES ABSTRACT Apparatus for successive cut-off operations at axially spaced locations along an elongated tubular work- piece wherein the workpiece is rotated during cut-off opera- tions and successively advanced axially between such opera- tions. The cut-off operations occur at a work station where a front portion of the workpiece is successively advanced, rotated and severed with an elongated portion of the work- piece extending rearwardly from the work station. A pair of elongated guide and support rails extend adjacent the rear- wardly projecting portion of the workpiece and mount a work- piece supporting mechanism which is freely moveable there along toward and away from the work station. The mechanism comprises a freely rotatable collet assembly adapted to grip and release the workpiece. Operating means for the collet assembly comprise a handwheel, a gear train, and a shell cam which is rotatable through a limited angle and axially move- able at the urging of the handwheel and gear train. Axial cam movement results in axial movement of a collet actuating sleeve to open the collet and a compression spring closes the collet. An auxiliary collet opening arm mounted on the shell cam is engaged by a fluid operated cylinder to rotate the cam and automatically open the collet when the workpiece supporting mechanism is incrementally drawn forwardly along the guide rails by the successively advancing workpiece to a position of proximity with the work station.
431455
Ogilvy Renault
Torin Corporation
LandOfFree
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