| 摘要 |
PURPOSE:To aim at enhancing the efficiency of working by adjusting the speed of axial reciprocating motion of rotary motion of a horn, and by changing the crossing angle of abrasive particles for each reciprocation. CONSTITUTION:A horn 1 is rotated by a rotary motion means 3 and is reciprocated by a stroke means 4 so as to horn the inner surface of a member 6. The speeds of the rotary motion means 3 and the stroke means 4 are adjusted by a changing circuit 5. By changing these speeds, the crossing angles of abrasive particles are changed so that the contact surfaces of the abrasive particles relative to the member 6 may be changed. Accordingly, the new grinding surfaces of the abrasive particles are exposed so as to promote the grinding operation, thereby it is possible to enhance the efficiency of working. |
