Device for holding disk-shaped articles and method thereof

A device for holding disk-shaped articles, comprising a rotating shaft and a chuck body driven by the rotating shaft, wherein the edge of the chuck body is provided with at least two groups of clamping elements, each group of clamping elements comprise at least 3 clamping elements for clamping the disk-shaped article, each of the clamping elements is mounted to a pivot with the chuck body respectively by means of the rotation of the clamping element with respect to the chuck body ;

• a radial compression spring is connected between the bottom of the clamping element and the chuck body to provide a clamping force for the clamping element;
• a driving element is provided between the clamping element and the chuck body for pushing or drawing the clamping element to rotate;
• during cleaning, the clamping elements in the same group are consistent in action, while the clamping elements in different groups release and clamp alternately.