Patent ID: 6298708
Filing Date: 2001-10-09
Classification: B30B,Y10T

Abstract:
A tool-holder assembly for a machine tool comprising:a workpiece holder;a support movable toward and away from said workpiece holder with a working motion of said support;a tool holder on aid support and having a plurality of identical tools fixed thereon for performing a certain machining operation and alternatively positionable at a workpiece-shaping position opposite said holder for identically performing said certain machining operation upon wear of each of said tools and substitution of one of said tools for another of said tools at said workpiece shaping position, said tool holder being movable on said support in a tool-replacement motion to substitute one of said tools for another of said tools at said position; andpositioning means operatively connected with said tool holder for shifting said tool holder with said tool-replacement motion to substitute one of said tools for another at said workpiece-shaping position.