Gear machining apparatus and machining condition determination device

A gear machining apparatus comprising:

• a hob cutter configured to machine a gear profile on a workpiece;
• at least one processor;
• and
• at least one memory having instructions that, when executed by the at least one processor, cause the gear machining apparatus to perform operations to relatively move the hob cutter and the workpiece while synchronously rotating the hob cutter and the workpiece,
• wherein the operations comprise:
• performing first chamfering on a first axial end of the gear profile by relatively moving the hob cutter with respect to the workpiece in a radial direction of the workpiece while relatively moving the hob cutter with respect to the workpiece in an axial direction of the workpiece;
• performing, subsequent to the first chamfering, gear profile machining by relatively moving the hob cutter with respect to the workpiece in the axial direction of the workpiece;
• and
• performing, subsequent to the gear profile machining, second chamfering on a second axial end of the gear profile opposite to the first axial end in the axial direction by relatively moving the hob cutter with respect to the workpiece in the radial direction of the workpiece while relatively moving the hob cutter with respect to the workpiece in the axial direction of the workpiece.