GEAR-WHEEL MACHINING DEVICE AND GEAR-WHEEL MACHINING CONDITION SETTING DEVICE

摘要

The purpose of the present invention is to enable suitable machining conditions to be easily achieved in a gear hobbing machine. This gear-wheel machining condition setting device receives a feed amount establishing parameter and a cutting speed establishing parameter. A storage part (11) stores an incision amount calculation formula indicating the relationship between an incision amount and a characteristic value determined from the feed amount and the feed amount establishing parameter, and this incision amount calculation formula is used to calculate the feed amount of a hob (1) relative to the incision amount. The storage part (11) also stores fixed-temperature curve data indicating the relationship between the incision amount and cutting speed when the blade edge temperature of the hob (1) is a predetermined temperature, and according to this data, the cutting speed is derived from the incision amount and the cutting speed establishing parameter, referencing the fixed-temperature curve.