Polishing device for steel coil machining

The utility model relates to the technical field of steel coil processing equipment, in particular to a polishing device for steel coil processing, which comprises a workbench, rectangular grooves are symmetrically arranged on the left side and the right side of the workbench, grooves are symmetrically arranged on the two sides of each rectangular groove, and positioning plates are symmetrically connected on the left side and the right side of the workbench through bolts. Fixing plates are welded to the lower ends of the two positioning plates correspondingly, a fixing frame is welded to one end of the workbench, a transmission roller is rotationally connected into the fixing frame through a rotating shaft, an upper side face polishing mechanism and a lower side face polishing mechanism are arranged at the end, away from the fixing frame, of the workbench, adjusting plates are arranged in rectangular grooves distributed in a bilateral symmetry mode correspondingly, and sliding blocks are symmetrically welded