The unbalanced adjustment device which is used for unbalanced adjustment manner and that manner, the Drive blade, and the axial interposition hole which are used for that manner it Perforating facilities manner.

摘要

PURPOSE:To quickly and accurately realize a measurement and a correction for an unbalance by fitting a work to a driving shaft provided with machining means on the outer peripheral surface and rotating it. CONSTITUTION:At a measurement mode, a driving motor 3 is rotated through a driving controller 11, after a cramp 5 is released and the work 1 is fitted-in to the driving shaft 2. Then, since the work 1 is allowed to rotate and the driving shaft 2 is vibrated by unbalanced components, the unbalanced amount and unbalanced phase are obtained by the unbalance measuring instrument 8 by detecting 7 the vibration. After the unbalance measurement is finished, a controller 12 is shifted to a positioning mode. At the positioning mode, the work 1 is positioned so that the unbalanced phase obtained at the measurement mode is faced towards an X-axis direction. After that, the work 1 is fixed to actuating the cramp 5. Then the mode is shifted to a correction mode, the driving means 4 is controlled so that the unbalanced amount and unbalanced phase obtained by the measurement mode are corrected, and a hole is machined so as to be eccentric while expanding the hole diameter by the driving shaft 2.