NC lathe

Claim 1

As follows: A numerical control lathe comprising: a box-shaped bed; a headstock mounted on the bed; a cutting tool unit mounted on the bed; a workpiece supplying device provided under a main spindle of the headstock unit; a numerical control unit for controlling the headstock unit, the cutting tool unit and the workpiece supplying device; wherein the bed comprises a first installation surface and two second installation surfaces; wherein the first and second installation surfaces are disposed substantially at a right angle to each other, the first installation surface includes a Z-axis and an X-axis crossing at right angle therewith; wherein the headstock unit comprises a headstock reciprocably movable along the Z-axis on the first installation surface, means for feeding the headstock, means for rotating the main spindle of the headstock unit, and a chuck provided at a top portion of the main spindle; and wherein the cutting tool unit comprises a tool carrier reciprocably movable along the X-axis on the first installation surface, means for feeding the tool carrier, a turret head pivotally connected to the tool carrier in such a manner so as to enable a revolution around the X-axis, a tool holder fixed to the turret head, and an indexing unit for indexing a position of the turret heat.