| 摘要 |
PURPOSE:To compensate a position of a blade edge by converting an axial linear motion of a drawbar into a rotary motin, and transmitting this rotation to an eccentric ring for converting it into eccentric motion, further transmitting this revolving motion to the eccentric ring and moving through this eccentric relving motion a cutting tool support device in the direction perpendicular to an axis. CONSTITUTION:Rotation of a drawbar 31 is transmitted to an eccentric ring 14 by means of ratchet mechanisms 15, 17, movement and compensation of a blade edge position being performed certainly. Further, utilization of a cylinder mechanism for a driving device results in simplification of the mechanism as compared with devices utilizing a pulse motor or DC motor. Thus, compensation of the blade edge position is performed certainly and this makes a maintenance work easy. |
