| 摘要 |
<p>The tool drum has a hub which can adopt predetermined rotary positions about an axis (A). The latter is encircled by a guide (20) whose trapezoidal profile is gripped on three sides by tool holders. The guide has a free end surface which points in the axial direction relative to the axis, and has a conical external surface (24) whose diameter decreases with increasing distance from the end surface. The holders can be stuck onto the guide in the axial direction. The guide has a slide (60) which can be tensioned radially inwards, in each sector on which a holder is to be fixed. Each holder has a body and a foot (50) with a dovetailed recess bounded by a concave conical, radially outer flank (54), on the external surface of the guide and by a convex conical inner flank (56) against which the slide can be tensioned.</p> |
