CNC machining device

A CNC machining device measuring a surface shape of an object after machining the object with a tool, the CNC machining device comprising:

• a housing unit configured to house a plurality of tools;
• a rotation shaft configured to rotate the tool;
• an automatic tool replacing device configured to replace the tool mounted on the rotation shaft with one of the plurality of tools housed in the housing unit;
• a CNC controller configured to control an operation of the rotation shaft;
• a measurement unit configured to generate measurement data corresponding to a distance from a surface of the object;
• and a processing device connected to the CNC controller,
• wherein the automatic tool replacing device is configured to replace the tool mounted on the rotation shaft with the measurement unit,
• the measurement unit generates the measurement data at regular intervals,
• the CNC controller generates position coordinate data indicating a position and an orientation of the rotation shaft at regular intervals, and
• the measurement unit transmits the measurement data to the processing device through first radio communication, and transmits a synchronization signal for synchronizing the measurement data with the position coordinate data to the CNC controller through second radio communication.