Device for clamping a workpiece along a rotatably driven longitudinal axis

A device (10;

• 110) for clamping a workpiece (50, 50a, 50b, 50c 50d;
• 150d) on a rotatably drivable longitudinal axis having:
• a tensioning spindle (12;
• 112)
• a counter-holder (14;
• 114) and
• a carrier,
• at least the tensioning spindle (12;
• 112) being mounted such that it is rotatable about the longitudinal axis (A), and
• the carrier being fixed to the tensioning spindle (12;
• 112) and, when the workpiece (50, 50a, 50b, 50c, 50d;
• 150d) is clamped between the tensioning spindle (12;
• 112) and the counter-holder (14;
• 114), being capable of being brought into engagement with the workpiece (50, 50a, 50b, 50c, 50d;
• 150d) in such a way that it transmits a rotary movement of the tensioning spindle (12;
• 112) to the workpiece (50, 50a, 50b, 50c, 50d;
• 150d),
• the carrier having a spring element (30;
• 130),
• characterised by an adapter element (58;
• 158) which is constructed to be fixed to the workpiece (50, 50a, 50b, 50c, 50d;
• 150d) and which cooperates with the tensioning spindle (12;
• 112) to clamp the workpiece (50, 50a, 50b, 50c, 50d;
• 150d), the spring element (30;
• 130) acting on the adapter element (58, 58a, 58b, 58c, 58d;
• 158d) under prestress to transmit a torque or being capable of being brought into engagement with said adapter element.