GEAR MACHINING APPARATUS

摘要

A gear machining apparatus includes a machining tool having a plurality of protruding tool edges on an outer periphery of the machining tool, and driving apparatuses that form a tooth on a work piece by rotating the machining tool around a central axis thereof, rotating the work piece W around a central axis thereof, and moving the machining tool relative to the work piece. Radial outer faces of the protruding tool edges form multiple steps that are parallel to the central axis of the machining tool such that the diameter of the machining tool increases in a stepwise manner from a tool leading end toward a tool base end of the machining tool.

主权项

1. A gear machining apparatus comprising:
a machining tool including a tool edge having a plurality of protruding tool edges on an outer periphery of the machining tool; and a driving apparatus that forms a tooth on a work piece by rotating the machining tool around a central axis thereof, rotating the work piece around a central axis thereof, and moving the machining tool relative to the work piece; wherein the driving apparatus sets the central axis of the machining tool and the central axis of the work piece in a skew state, and drives the machining tool straight ahead in a direction of the central axis of the machining tool toward the work piece while synchronizing rotation of the work piece with rotation of the machining tool so as to allow the protruding tool edges to form a tooth on the work piece, and radial outer faces of the protruding tool edges form multiple steps that are parallel to the central axis of the machining tool such that a diameter of the machining tool increases in a stepwise manner from a tool leading end toward a tool base end of the machining tool.