| 摘要 |
PURPOSE:To make removal of angles in a work, having a hard fragile material- make, minimal areal plane surface, by grinding realizable without any damage to this plane surface, by utilizing both characteristics for micro-travel control and for easily obtaining high frequency inherent in a voice coil motor. CONSTITUTION:A movable part 18 is attached to a moving coil 17 inside a voice coil motor. And, a work 22 to be set to the tip of a holder 23 is forcibly pressed to an abrasive cloth 20 on a polishing table 19 under the specified load and thereby in a state of being sunk, the polishing table 19 performs a reciprocating rectilinear motion in both directions, by means of the voice coil motor whereby edge-chamfering for the work takes place. In this case, both characteristics for micro-travel control and for easily obtaining high frequency inherent in the voice coil motor are utilized so that the work having a hard fragile material- make, minimal areal plane surface can be polished for edge removal without any damage to this plane surface. |
