| 摘要 |
<p>The machine tool simultaneously bores, faces and turns work. It has a facing tool slide (25) movable horizontally and accommodating a holder (27) for a facing tool (26) sliding vertically at a feed speed which can be preselected. A tool saddle (5) moves horizontally at a preselected speed, having a driven boring tool (15), and a turning tool holder (17) with tool (20), also movable at a preselected speed. When working, the turning tool holder moves in the opposite direction to the feed direction of the boring tool, and at a predetermined speed less than the feed speed of the boring tool.</p> |
