| 摘要 |
<p>The invention relates to a device for clamping a workpiece holder (3) on a collect chuck (2) that can be fixed to a machine tool, having a plurality of clamping elements distributed around the circumference of the collet chuck (2; 42). Said clamping elements that can be adjusted radially to the axis (4) of the collect chuck from a release to a clamping position can be pressed against a circumferential surface (25) of the workpiece holder (3) positioned relative to the collet chuck (2) in the clamping position. The clamping element are designed as rollers (20) having axes (30) aligned nearly tangentially to the collet chuck circumference. A determinable surface pressure thus results in the clamping position as said rollers (20) mutually contact the workpiece holder (3), a clamping mandrel (10) of the collet chuck (2), and the collect chuck part (11). Said surface pressure is thereby reduced and the collet chuck can also be used in the range of greater tensile forces.</p> |
