Gear cutting tool, gear machining device, and gear machining method
AssigneeJtekt Corporation
InventorsKazuki NATSUDA, Hisashi OTANI, Hiroyuki NAKANO, Yoshimitsu OKADA
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Abstract
To provide a gear cutting tool capable of supplying a coolant liquid to an optimum position even when cutting edges are reground. The gear cutting tool includes the tool body having a plurality of blades on an outer peripheral surface thereof and a center hole, and a nozzle provided in the center hole of the tool body so that a fixed position in the tool body is adjustable. The nozzle includes a flow channel which allows supplied coolant liquid to flow into the center hole of the tool body, and discharge the coolant liquid toward the plurality of blades.
Claims10
A gear cutting tool used for machining a gear, comprising:
- a tool body including a plurality of blades on an outer peripheral surface thereof and a center hole;
- a nozzle including a flow channel allowing a coolant liquid supplied to the center hole of the tool body to flow therein and discharging the coolant liquid toward the plurality of blades and provided in the center hole of the tool body so that a fixed position thereof in the tool body is adjustable.
A gear cutting tool used for machining a gear,
- wherein a machining action for machining the gear using the gear cutting tool is an action of moving the gear cutting tool relatively to the gear in a direction of a center axis of the gear while rotating the gear cutting tool about the center axis,
- wherein the gear cutting tool includes:
- a shaft member rotated about the center axis of the gear cutting tool in the machining action, and
- a blade portion provided on the shaft member coaxially therewith, and
- wherein the blade portion includes:
- a first cutting blade having a rake face facing one side in a direction of the center axis of the blade portion, and
- a second cutting blade having a rake face facing other side in the direction of the center axis of the blade portion.
A gear machining method of machining a gear by moving a gear cutting tool relatively to the gear in a predetermined direction while rotating the gear to be machined and the gear cutting tool having a plurality of blades respectively, comprising:
- defining a machining step of moving the gear cutting tool relatively to the gear in the predetermined direction once as a unit process,
- wherein in the plurality of blades of the gear cutting tool, the first blade starting machining in a first unit process is different from the second blade starting machining in a second unit process.
Dependencies are inferred from the claim text.