Reaming head interface
AssigneeKennametal Inc.
InventorMichael Hacker
Life of this patent
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Abstract
The invention relates to a tool head for a rotary tool. The tool head extends along, and rotates about, a rotational axis in a rotational direction during operation. The tool head is designed for replaceable fastening on a carrier shank of the rotary tool and comprises on the back thereof a coupling surface comprising a first serration having a plurality of ribs running parallel to one another and grooves running parallel to one another. The first serration comprises at least two part-serrations oriented toward one another in the rotational direction at an angle. Each part-serration having a plurality of ribs and grooves running parallel, for centering the tool head relative to the carrier shank. The invention furthermore relates to a rotary tool having such a tool head.
Claims16
A tool head for a rotary tool, the tool head extending along a rotational axis and rotating about the same in a rotation direction during operation, the tool head structured for replaceable fastening on a carrier shank of the rotary tool, the tool head comprising:
- a coupling surface disposed on the back face thereof, the coupling surface comprising a first serration having a plurality of ribs and grooves,
- wherein the first serration comprises at least two part-serrations oriented toward one another in the rotational direction at an angle, each part-serration having a plurality of ribs and V-shaped grooves for centering the tool head and transmitting the torque thereof relative to the carrier shank;
- wherein the ribs and grooves of each part-serration run parallel with respect to each other;
- wherein the ribs and grooves of two part-serrations are free of mutual overlaps;
- wherein the ribs and grooves of each part-serration run generally in a radial direction outward from and generally perpendicular to the rotational axis;
- and
- wherein an open region that is free of ribs and grooves is formed on the coupling surface between the two part-serrations in the rotational direction.
A rotary tool which extends along, and rotates about, a rotational axis in a rotational direction during operation, the rotary tool comprising:
- a carrier shank;
- and
- a tool head reversibly replaceably arranged on the carrier shank, the tool head including a coupling surface disposed on a back side of the tool head, the coupling surface comprising a first serration having a plurality of ribs and V-shaped grooves,
- wherein the carrier shank includes a second serration designed to be complementary to the first serration,
- wherein the first serration comprises at least two part-serrations oriented toward one another in the rotational direction at an angle, each having a plurality of ribs and grooves for centering the tool head relative to the carrier shank;
- wherein the ribs and grooves of each part-serration of the first serration run parallel with respect to each other;
- wherein the ribs and grooves of two part-serrations of the first serration are free of mutual overlaps;
- wherein the ribs and grooves of each part-serration of the first serration run generally in a radial direction outward from and generally perpendicular to the rotational axis;
- and
- wherein an open region that is free of ribs and grooves is formed on the coupling surface between the two part-serrations in the rotational direction.
Dependencies are inferred from the claim text.