Tool holder for turret lathe

摘要

A tool holder (21) for attaching a complex tool (12,17) having a plurality of kinds of cutting edges to a turret (10), has a base portion (22) attachably and detachably formed at the turret. The base portion has a rotatable tool spindle (25) attachably and detachably installing the complex tool (12,17) thereon. The tool spindle is provided with indexing means (26a-d,28a-d) for indexably rotating the tool spindle at an indexed position corresponding to each cutting edge of the complex tool. And, clamping means (33,33a) for clamping the tool spindle at a predetermined indexed position is provided. Indexing rotational function and clamping function owned by the tool holder makes the use of the complex tool in the lathe possible.