| 摘要 |
PURPOSE: To ensure the stability and steadiness at the time of cutting machining by attaching a mass compensation device to a rotary boring head and absorbing unbalance caused by displacement of movable parts. CONSTITUTION: A mass compensation device especially applicable to a rotary boring head is used, in particular, to machine a hole having high precision and in which annular balancing weights 22a, 22b with balancing mass m1, m2, angular displacement means 25, 26 consisting of gears 25, 26 capable of meshing with inner gear means 23, 24, and a rotary outer ring 21 are arranged in the boring head basically. |
