NUMERICAL CONTROL DEVICE AND NUMERICAL CONTROL SYSTEM

The present invention provides a numerical control device (3) which controls a machine tool (2) for machining a workpiece, the numerical control device (3) being provided with: a signal receiving unit (33) which receives first data for performing first machining on the workpiece, from a server (6) which stores the first data; a storage unit (35) which stores the first data received by the signal receiving unit (33); a first determination unit (38) which determines whether the storage unit (35) stores the first data; and a simulation unit (39) which initiates a first simulation of the first machining on the basis of the first data, when it is determined by the first determination unit (38) that the storage unit (35) stores the first data. 数控装置(3)是控制对被加工物进行加工的工作机械(2)的装置，该数控装置(3)具有：接收部(33)，其从服务器(6)接收第1数据，该服务器(6)存储用于对被加工物进行第1加工的第1数据；存储部(35)，其对通过接收部(33)接收到的第1数据进行存储；第1判断部(38)，其判断存储部(35)是否存储了第1数据；以及仿真部(39)，其在通过第1判断部(38)判断为存储部(35)存储了第1数据的情况下，以第1数据为基础开始关于第1加工的第1仿真。