Floating chuck

The utility model relates to a floating chuck. The floating chuck comprises a fixed plate, a chuck centering sleeve, a centering rod, a floating plate and a chuck part, the fixing plate is horizontally and fixedly installed on the top face of a machine tool workbench. A chuck centering sleeve is vertically embedded in the middle of the top face of the fixing plate in a matched mode. The centeringrod is vertically mounted in the chuck centering sleeve; the floating plate comprises a horizontal floating plate and an angle floating plate; the horizontal floating plate is arranged outside the chuck centering sleeve in a sleeving mode. The angle floating plate is positioned at the upper part of the horizontal floating plate and sleeves the centering rod; an inner waterproof cover is clamped between the angle floating plate and the centering rod; the chuck part is located on the upper portion of the angle floating plate and arranged at the upper end of the centering rod in a sleeving mode.The chuck part and the ang