| 摘要 |
A machine tool (10) has a Z table (18) sliding in the Z direction in a horizontal plane, a support body (22) provided on the Z table (18) and sliding in the vertical direction, a rotation arm (32) supported at the support body (22) and endlessly rotatable in a vertical plane facing work (W), an arm motor (34) for rotating the rotation arm (32), a processing spindle (36) rotatably supported and placed at a position of a distance R from the center C of rotation of the rotation arm (32), and a spindle motor (38) for rotating the processing spindle (36).
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