| 摘要 |
The present invention relates to a toolholder device for a machine tool. A device according to the invention integral with a table (3) moveable in two directions perpendicular to one another comprises a toolholder spindle (1), a sleeve (2) with a lower bearing surface (2a) of convex sphericity, a housing (3) with a seat (3a) of concave sphericity, and means (4) for generating a magnetic field which repel or attract the bearing surface of the sleeve and which are associated with the seat (3a). The invention is used particularly in toolholder spindles for valve-seat grinders. |
