Pressing and positioning device

The utility model discloses a compressing and positioning device which comprises a base, a cover plate and a compressing mechanism, the base is matched with the cover plate to fix a workpiece, the compressing mechanism compresses the cover plate, the base comprises a positioning portion, the workpiece abuts against the positioning portion, an elastic portion is arranged on the periphery of the inner side of the cover plate, and the elastic portion is matched with the cover plate. The elastic part extrudes the side wall of the workpiece so that the workpiece can be tightly pressed on the positioning part, the pressing mechanism comprises a vertically-moving pressing part, and the pressing part downwards presses the cover plate. According to the pressing and positioning device, the elastic part is combined with the fixing plate, so that a workpiece can be pressed when the workpiece is machined, the hard fixing plate can be prevented from damaging the workpiece, vibration generated by external factors can be abs