| 摘要 |
PURPOSE:To prevent cutting oil from splashing by installing a cylindrical protector, that is movable up and down, around the nozzle through which the cutting oil is supplied to the location of the wire-cut spark erosion machining. CONSTITUTION:The cutting oil is supplied to the working location of the wire- cut spark erosion machining through a nozzle 14. A cylindrical protector 17 is installed freely slidable up and down by means of lengthy holes 18 and fixing screws 19. The cylinder 17 is always brought down by its own weight to touch the work 12, but at the same time lifted up slightly due to the pressure of cutting oil splashing to transverse directions. The pressure of cutting oil also acts on the gap between the top end of the cylinder 17 and the nozzle 14, and the cylinder status at a position of balance of these forces. Splashing of the cutting oil coming out of the bottom end of the cylinder is prevented due to viscous damping provided by the cutting oil falling down from the top end of the cylinder. |
