| 摘要 |
PROBLEM TO BE SOLVED: To provide a machine tool compact with a cost reduced capable of high accurately efficiently machining a mechanical part. SOLUTION: In a numerically controlled machine tool for turning and hobbing a mechanical part, a main mandrel 2 capable of rotating around a center shaft 2a of itself by providing a means holding the mechanical part, first carriage 4 supporting a turret tool rest 5 for rotating, milling and drilling, and a second carriage 6 supporting a head 7 of a hob 11, are provided. The first/second carriage 4, 6, based on a command, can be controlled and moved relating to the above main mandrel 2, a tool mounted on the turret tool rest 5 and the hob 11 are selectively moved, the tool and the hob perform machining of the mechanical part supported to the main mandrel 2. |
