Surface machining device for crucible shaft machining

The surface machining device for crucible shaft machining comprises a workbench, a sleeve shaft, a moving mechanism, a polishing disc and a linkage mechanism, a clamping air cylinder is arranged above the workbench, L-shaped connecting plates are fixed to the bottoms of the two output ends of the clamping air cylinder, circular rings are welded to the bottom ends of the two L-shaped connecting plates, and clamping discs are rotationally arranged in the two circular rings; wherein a moving shaft is welded to the center of one clamping disc, the sleeve is arranged on the outer side of the moving shaft in a sleeving mode, the moving mechanism is used for driving the clamping air cylinder to move left and right and comprises a lead screw, the polishing disc is located on one side between the two clamping discs, and the linkage mechanism is used for driving the sleeve and the lead screw to rotate through a driving shaft. According to the device, the periphery of the crucible shaft can be ground and polished more u