High speed face milling cutter with adjustable inserts - has tapered plugs secured by central screws to position and lock inserts against centrifugal force

摘要

The face milling cutter has inserted toolbits spaced around the circumference, some for roughing and some for finishing. The design aims to secure the toolbits against any movement under centrifugal force when eg light alloys are being machined. Shown in longitudinal section through the cutter axis, a roughing toolbit (3, 5) is set to project above the cutter face (18) by only a small amount. The toolbit is housed in a circular recess set in enough to leave a supporting wall (11), and is clamped by the tapered plug (12) whose axis is inclined to the toolbit axis (5a). Positioned adjustment along the cutter axis is by means of a similar tapered plug (20) bearing against the end (22) of the toolbit. Screws (15, 24) entering the cutter body secure the tapered plugs. A finishing toolbit is both axially and radially adjustable and is fastened using the same types of tapered plugs as for the roughing toolbits. USE/ADVANTAGE - Toolbits on face milling cutter are secure against movement under centrifugal force.