Vibration-cutting condition setting device for machine tool

A vibration-cutting condition setting device for a machine tool provided with a rotation driving unit adapted to rotate a spindle gripping a workpiece and a feed driving unit adapted to feed an object, the object being at least one of the spindle and a tool for cutting the workpiece, the machine tool controlling the object to be fed with a vibration along a cutting direction to cut the workpiece, the vibration comprising an advancing feed of the object in a direction toward the workpiece and a returning feed of the object in a direction opposite to the direction of the advancing feed;

• the vibration-cutting condition setting device comprising:
• a display unit;
• and
• a control unit adapted to accept a setting for controlling the object to be fed with the vibration, the setting comprising a feed speed without the vibration (F) of the object, a first parameter (A) regarding a cycle of the vibration, and a second parameter (E) regarding an amplitude of the vibration;
• wherein the control unit calculates a maximum feed speed (Fmax) of the object according to the feed speed without the vibration (F), the first parameter (A), and the second parameter (E) and then displays a value representing the calculated maximum feed speed (Fmax) on the display unit.