Kennametal Inc.

Kennametal Widia Produktions Gmbh & Co Kg

Walter Thurnwald

Markus Heinloth

Johann Woerner

Terry Takayama

Johann Wörner

The invention relates to a tool for the outside milling or for the rotary broaching of tools that rotate about the longitudinal axis thereof during machining. A disk-shaped tool carrier includes peripherally arranged cutting inserts or cartridges having cutting inserts. According to the invention, the cutting inserts or the cartridges are arranged on a ring-shaped or partially ring-shaped, segment-shaped carrier that is removably fastened to a machine spindle either directly or indirectly by an adapter.

Tool

The invention relates to an internal milling cutter including an annular tool support () equipped on the inner casing thereof with cutting inserts. The tool support () is fastened in a machine holder (). According to the invention, a bayonet-type connection is provided between the tool support () and the machine holder ().

Internal milling cutter

The invention relates to a tool coupling for connecting a tool carrier which can be driven in a rotating manner, in particular a milling tool with a machine spindle or an adapter connected to a spindle, wherein four drivers in a crosswise formation are provided for transmitting torque between the said parts and in the clamping state engage in four recesses. To allow the tool coupling to be easily operated and to be of a simple construction, and also to counteract undesired jamming, it is proposed that the drivers respectively have on the side transmitting the torque a planar face which lies with full surface-area contact against a wall of a groove-shaped recess in the clamping state, that on the opposite side the driver has a smaller positively or frictionally engaging contact with the wall there of the groove-shaped recess and that a quick-acting clamping device is providing for the axial clamping of the tool carrier and the spindle or an adapter.

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Stein, Germany

Walter Thurnwald