| 摘要 |
PURPOSE:To cut a groove in the axial direction on the periphery as in an axial entry groove, by allowing a tool, having a pair of cutting edges diagonally placed to each other, to perform reciprocating motion in a fixed direction further in a direction at right angles with the fixed direction while alternately perform cutting feed action and clearance action. CONSTITUTION:An axial groove machining device is equipped with a cutting tool 27 having a pair of cutting edges 27a, 27b diagonally placed to each other and a tool holder 25 supporting the tool 27. Further a tool rest 21 shuttle driving the holder 25 in a fixed direction and a means shuttle driving said tool rest 21 in a direction at a right angle with said fixed direction are equipped. The tool 27 is shuttle driven in the fixed direction further in the direction at a right angle with said fixed direction, and the pair of cutting edges are permitted to alternately perform cut feed action and clearance action, while a depth of cut is gradually increased at every stroke, in this way, high accurate and high efficient groove machining can be performed. |
