Cutting tool arrangement

Abstract

A cutting-tool cartridge arrangement for rotary cutting tools in which the cutting-tool cartridge assembly is mountable in an aperture in the cutting-tool body member. The cartridge assembly has an annular split bushing for insertion into the tool body aperture, has internal threads and a slot in the wall to provide a pair of opposed surfaces resiliently movable towards and away from each other. A set screw aperture is provided in the tool body member. The stud seat is threaded into the split bushing. The stud seat has a cutting insert end having matching walls that match the wall configuration of the mounting walls of a frustum cutting insert. A clamping nut threadingly engages the stud seat threaded walls at the cutting insert end thereof and has internal walls configured to match the cutting inserts flank surface. Tightening the clamping nut on the stud seat clamps the frustum cutting insert therebetween. Adjustment to the insert position is provided by threading the stud seat in or out of the split bushing. The set screw is then tightened to clamp the threads of the split bushing on the stud seat to prevent any further movement. Other enbodiments of the invention provide for rotation of the cutting-insert during the rotation of the cutting-tool and for the provision of a coolant to be dispensed in the regions where the cutting-insert is cutting the workpiece.