Clamping and fixing assembly for hub workpiece

A clamping and fixing assembly for hub workpieces belongs to the technical field of part machining and comprises a base, round rods are movably connected to the two sides of the interior of the base, bearings fixedly sleeve the ends, close to each other, of the two round rods, pressing plates are fixedly connected to the outer rings of the bearings, and connecting plates are fixedly connected to the ends, away from each other, of the two round rods. An inner groove is formed in the base, a control mechanism used for adjusting is arranged between the two connecting plates, the clamping plates are pulled out of the interior of the clamping groove and separated, the connecting plates are reset under the action of elastic force generated by the springs, and the connecting plates on the two sides drive the pressing plates to press and position the two ends of a hub workpiece. Meanwhile, the hub workpiece is stably and firmly fixed into the base through the elastic force generated by the springs by the connecting p