| 摘要 |
The present invention relates to a force-amplifier included in a machine spindle having a clamping member (9), the force-amplifier (7) co-operating with two drawbars (10, 11), one of which (11) is connected to the clamping member (9), and that the force-amplifier (7) comprises a number of sets of co-operating wedges (22, 23). <??>Characteristic of the force-amplifier according to the present invention is that mutually co-operating sliding surfaces (32 and 35, 33 and 36) of the co-operating wedges (22, 23) are planar and parallel with each other. <IMAGE> |
