A numerical control device according to an embodiment of the present disclosure is a numerical control device for controlling at least two oscillating drive axes which linearly drive so as to cause mutually differing targets to change speed regularly at a fixed period, based on a machining program, in which the numerical control device controls the at least two oscillating drive axes so as to keep fixed a phase difference of periodic variable components of the at least two oscillating drive axes.

To provide a numerical controller for facilitating mass production of various types of workpieces in comparison with a prior art, by controlling a rotary index machine or the like having a plurality of machining stations. A numerical controller for a machine tool executes multi-path control for collectively controlling a plurality of paths requiring conveyance operations between the processes when each of workpieces receives a plurality of processes. The numerical controller includes an execution unit for executing a plurality of machining programs each of which is generated for each of the workpieces so as to correspond to each of the paths, the plurality of machining programs including execution commands of the processes and conveyance commands between the processes.

A numerical control device according to an embodiment of the present disclosure is a numerical control device for controlling at least two oscillating drive axes which linearly drive so as to cause mutually differing targets to change speed regularly at a fixed period, based on a machining program, in which the numerical control device controls the at least two oscillating drive axes so as to keep fixed a phase difference of periodic variable components of the at least two oscillating drive axes.

To provide a numerical controller for facilitating mass production of various types of workpieces in comparison with a prior art, by controlling a rotary index machine or the like having a plurality of machining stations. A numerical controller for a machine tool executes multi-path control for collectively controlling a plurality of paths requiring conveyance operations between the processes when each of workpieces receives a plurality of processes. The numerical controller includes an execution unit for executing a plurality of machining programs each of which is generated for each of the workpieces so as to correspond to each of the paths, the plurality of machining programs including execution commands of the processes and conveyance commands between the processes.

A numerical controller includes: a monitoring unit which monitors a delay time between two machining units after the two machining units simultaneously start operations in the same direction without being in synchronism with each other; a determination unit which determines whether or not the delay time exceeds a predetermined time; and a control unit in which when the delay time exceeds the predetermined time, one of the two machining units is stopped.