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US 4,204,787 AGranted
Milling cutter
AssigneeKennametal Inc.
InventorsDavid M. McCray, Gerald D. Murray
Life of this patent
Estimating the term…
Abstract
A milling cutter is disclosed that comprises a rotatable adapter plate having a central protrusion on one side of the plate. A cutter ring, having recesses for mounting inserts therein, is provided with bayonet slots and a central opening so it can be fitted with and bolted to the adapter plate. The central protrusion is tapered and a conical grind is put on one of the mating surfaces between the adapter and the cutter plate to aid in disassembly after use of the milling cutter.
Claims15
A milling cutter comprising:
- a rotatable adapter plate having a central protrusion with a taper thereon;
- a cutter ring having a central opening for receiving said protrusion;
- recesses on said cutter ring for seating cutting inserts;
- cooperating surfaces of abutment means on said cutter ring and adapter;
- clamping means for clamping said ring and said adapter into rigid nonrotatable abutment with one another;
- and in an assembled but unclamped position, one of said abutment surfaces on said ring and said adapter having a concave portion when viewed from the other surface from said one surface.
3 more elements
A milling cutter comprising:
- a rotatable adapter plate having a central opening with a taper therein;
- a cutter ring having a central protrusion for extending into said opening;
- recesses on said cutter ring for seating cutting inserts;
- cooperating surfaces of abutment means on said cutter ring and adapter;
- clamping means for clamping said ring and said adapter into rigid nonrotatable abutment with one another;
- and in an assembled but unclamped position, one of said abutment surfaces on said ring and said adapter having a concave portion when viewed from the other surface from said one surface.
3 more elements
Dependencies are inferred from the claim text.