摘要 |
PURPOSE:To secure a cutting edge with genuine straightness by fixing a cutter to a tool rest alongside its longitudinal, grinding the cutting edge of this cutter with a grinder element reciprocative in parallel with the tool rest while a cooling medium is poured on, and supplying the cooling medium also to the cutter immediately after its service. CONSTITUTION:A traveling body 12 is fitted with No.1 flexible tube 31 to supply cooling medium such as water, oil, compressed air to a grinder element 23 and a cutter 4 during the grinding process, and No.2 flexible tube 31 is installed behind of the traveling direction. When the cutter 4 is ground by the grinder element 23, the cooling medium is supplied not only to the grinder element 23 and the cutter 4 at the grinding surface of element 23 but also to the cutter 4 immediately after its service, and also to the whole cutter 4, the front flat face 33 supporting the back of the cutter 4, and/or ribs 34. Thereby the cutter is prevented from running temperature due to grinding work, and the temps. of different parts over the cutter 4 in its longitudinal direction and vertical direction is maintained approx. uniformly, and the grinding can be performed while it is ensured that the parallelism of cutter 4 in its longitudinal direction is maintained. |