Turning fixing device of copper valve milling machine

Abstract

The utility model provides a turning fixing device of a copper valve milling machine, which belongs to the technical field of turning of copper valve milling machines and comprises a three-jaw chuck, three groups of chutes are arranged on the three-jaw chuck, limit strips are fixedly connected in the chutes, and fixing jaws matched with the chutes are slidably connected onto the limit strips. Limiting grooves matched with the limiting strips are formed in the fixing claws, multiple sets of connecting pieces are installed in the fixing claws, connecting columns are fixedly connected to the ends of the connecting pieces, connecting frames are fixedly connected to the ends of the connecting columns, extrusion rollers are fixedly connected to the connecting frames, and extrusion pieces used for extruding the connecting pieces are further installed in the fixing claws. According to the three-jaw chuck, the copper valve is extruded and fixed through the multiple sets of extrusion rollers, the contact area between the three-jaw chuck and the copper valve is increased, the fixing stability of the copper valve is improved, and the problem that in the prior art, due to the fact that the contact area between the fixing jaws in the three-jaw chuck and the copper valve is small, the copper valve is not stably fixed is solved.