| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a tool attachment device of a lathe which can pressure-increasingly impart a strong drawing force to a draw bar even if using a drive source of a weak drive force by using a slide pressure-increasing mechanism arranged at a wedge mechanism by holding a position which is drawn by a draw bar mechanism by the wedge mechanism, and can be attached and fixed by, for example, two-face constraint which requires the strong drawing force.SOLUTION: In a tool attachment device of a lathe, a wedge mechanism for holding a drawing position by a draw bar mechanism is arranged at an attachment receiving part in which an attachment base part of a lathe tool is arranged at a ram, the wedge part which is slide-engaged with a wedge engagement part is constituted of a slide guide body which has an inside wedge part so as to be slidable with respect to an outside wedge part which is engaged with and fixed to the wedge engagement part, a pressure-increasing inclined part is arranged at a slide-engagement part, and a slide pressure-increasing mechanism which imparts a further increased drawing force to the draw bar by further slide-moving the inside wedge part with respect to the outside wedge part is arranged.</p> |
