Turning clamp for ultrathin shaft sleeve

The utility model provides a turning clamp for an ultrathin shaft sleeve. When an ultra-thin shaft sleeve type workpiece needs to be clamped, the workpiece is arranged on the multiple supporting pieces in a sleeving mode, then the second end of the supporting rod is inserted into the centers of the multiple supporting pieces, the multiple supporting pieces move outwards in the radial direction of the base along with the penetrating of the supporting rod, and when the supporting pieces support the inner wall of the workpiece, the locking pieces are matched with the supporting pieces, so that the workpiece is clamped. Compared with the prior art, the clamping device has the advantages that the radial movement range of the supporting pieces is large, clamping of thin-wall workpieces of various different specifications can be achieved, the supporting area of the clamping device for the workpieces is larger, the supporting effect is better, and the clamping device can be used for clamping the ultrathin shaft sleev