Patent ID: 8322204

Claim:
A device for correcting an unbalance of a high-speed rotary apparatus, comprising a jig for supporting a work having a rotating portion and including means for detecting vibration, wherein when fixing the work to the jig where the rotating portion being rotatable, the rotating portion rotated at a given rotation number and performing an unbalance correction of the rotating portion, based on a detected value by the detecting means, the device comprising: a plurality of clamping members for clamping and fixing the work on the jig, with being biased in given directions where the work is fixed on the jig in the engaged condition where they are engaged with the work supported by the jig; a plurality of means for moving the clamping members in moving directions including the given directions and for biasing the clamping members on the engaged condition in the given directions, provided with respect to the each clamping members; a plurality of means for adjusting moving amounts of the clamping members in the moving directions by the moving and biasing means and biasing forces for the clamping members in the given directions, provided with respect to the each moving and biasing means; a plurality of means for detecting positions of the clamping members in the moving direction on the engaged condition, provided with respect to the each clamping members; and a plurality of means for controlling each of the adjusting means, such that shifting amounts of the positions in the moving direction of the clamping members, from the predetermined reference positions, on the engaged condition detected by the position detecting means, based on detected signals from the each position detecting means, become smaller than given acceptable values preliminarily determined for the shifting amounts.