| 摘要 |
<p>A machine tool is provided with at least one preferably vertically aligned work spindle (22) that has a tool receiving socket (35) for tool holders (34) carrying tools (23) and has a clamping system (42) comprising a plurality of collet segments (46) that are displaceable between a radially outer clamping position, in which, by means of their lower heads (47), they clamp in a rotationally rigid manner in the work spindle (22) a tool holder (34) inserted in the tool receiving socket (35), and a radially inner initial position, in which the tool holder (34) can be inserted in and removed from the tool receiving socket (35). At least some of the lower heads (47) of the collet segments (46), when in their initial position, have such a radial spacing in relation to each other that they take hold of a tool holder (34) inserted in the tool receiving socket (35), these lower heads (47) being arranged so as to be movable radially inwards (Fig. 5).</p> |
