| 摘要 |
PURPOSE:To increase operability and to perform an edge grinding work smoothly and precisely by providing a turning handle for closing a pinching arm, and performing the holding and release of a small diameter drill. CONSTITUTION:A turning handle 37 is operated by its turning, a pinching arm 7 is closed via a chain 39 and the small diameter drill 15 inserted by a drill chuck 30 and drill point chuck 18 is held. Then, the main shaft part 32 of a spindle 31 is rotated by a handle 40 and the flank of a held small diameter drill 15 is set to an edge grinding position Feeding is given to this state moving table and the flank of the small diameter drill 15 is precisely subjected to grinding by a grinding grindstone 4 under rotation. |
