Numerical control device

Abstract

A numerical control device according to one aspect of the present invention is capable of shortening the machining time, and is for controlling a machining device that machines a workpiece with a machining head using a gas, in accordance with a machining program including a plurality of instructions. The numerical control device comprises: a settling time acquisition unit that acquires a settling time required from the start of supplying the gas until the supply state of the gas reaches a required state; a prefetch unit that prefetches the instructions of the machining program; a gas supply decision unit that, on the basis of the instructions prefetched by the prefetch unit, decides a start timing to start supplying the gas so that a specific instruction which requires the supply of the gas is executed after the settling time elapses from the start of supplying the gas; and a gas supply control unit that causes the gas to be supplied to the machining device at the start timing decided by the gas supply decision unit.

Dependencies are inferred from the claim text.