Cutters – for shaping – Rotary cutting tool – Including holder having seat for inserted tool
Patent
1997-04-22
1999-06-22
Pitts, Andrea L.
Cutters, for shaping
Rotary cutting tool
Including holder having seat for inserted tool
407 39, 407 90, B23B 2716
Patent
active
059136430
ABSTRACT:
An adjustable lead angle toolholder is disclosed for selectively cutting a workpiece at 30.degree., 45.degree., or 60.degree. angles. The toolholder may have a rotatable, cylindrical endmill body that includes a radially-oriented wall or a stationary, square shank having a planar wall on its distal end. The toolholder further includes a cutting insert having at least one linear cutting edge, and a mounting assembly for pivotally mounting the insert onto the wall of the endmill body such that a lead angle of the linear cutting edge is adjustable with respect to the outer periphery of the toolholder body. The mounting assembly includes a plate-shaped insert holder, and a fastener for pivotally connecting the insert holder to the wall of the toolholder body. A locking screw secures the plate-shaped insert holder at a selected pivoted position on the wall of the toolholder body. The invention allows a single toolholder to cut or chamfer a workpiece at different angles.
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International Search Report for Application No. PCT/US98/06886.
U.S. Patent No. 4,848,977 is a related English language counterpart to EP0282090.
Adcock Craig S.
Fowler Jeremy L.
Hartshorn Jeffrey E.
Vogel Scott W.
Kennametal Inc.
Pitts Andrea L.
Prizzi John J.
Williams Mark
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