Multi-spindle lathes
AssigneeWhite-BSA Tools Ltd.
InventorRoy S. Dolman
Life of this patent
Estimating the term…
Abstract
A multi-spindle machine tool comprises a frame mounting an indexable work spindle carrier which carries a plurality of rotatably mounted work spindles, and a workpiece gripper mounted on each spindle and including an actuating element movable axially of the associated spindle to open and close the workpiece gripper. A ring surrounds all of the spindles and is angularly movable about an axis coincident with the axis of the carrier, and a cam surface on said ring co-acts with said actuating elements whereby the grippers can be opened and closed by a sequence of operations including angular movement of the ring and indexing of the spindle carrier.
Claims7
A multi-spindle machine tool comprising a frame, a spindle carrier mounted on said frame, means for indexing said spindle carrier relative to said frame about an indexing axis, a plurality of work spindles rotatably mounted on said spindle carrier, each said work spindle being provided with workpiece-gripping means which can be opened and closed, a plurality of actuating elements each of which is mechanically connected to a respective one of said workpiece-gripping means and which is movable along the respective work spindle to open and close said respective workpiece-gripping means, a cam ring surrounding all of said work spindles and means for moving said cam ring angularly about said indexing axis, said cam ring having a cam surface which co-acts mechanically with said actuating elements such that said workpiece-gripping means can be opened and closed by effecting relative angular movement between said cam ring and said spindle carrier.
Dependencies are inferred from the claim text.