Arrangement of machine tool and clamping holder of a workpiece and chuck for same

An arrangement of a machine tool (10) and a workpiece holder (111) connected to a workpiece (14), comprising

• a multi-axis workpiece arm (11) of the machine tool (10) having a chuck (120) which is mounted to or in the multi-axis workpiece arm (11), with which chuck (120) the workpiece holder (111) of the workpiece (14) is clampable,
• wherein the workpiece holder (111) comprises at least one surface (111a) pointing radially towards the outside, which is configured for contact with a clamping element (109) of the multi-axis workpiece arm (11), which clamping element (109) is disposed in the radial direction between the workpiece holder (111) and the chuck (120),
• wherein the clamping element (109) is displaceable relative to the chuck (120), for clamping and releasing the workpiece holder (111),
• wherein the clamping element (109) is configured to vary a clamping force (F) exerted on the workpiece holder (111) when it is displaced relative to the chuck (120), and
• wherein the at least one surface (111a) is a substantially planar surface.