Polishing device for grinding wheel machining

The polishing device comprises a machining box, a box door is hinged to the front end of the machining box through a hinge, the machining box is fixedly arranged on a workbench, a first motor is fixedly arranged at the upper end of the left side of the outer wall of the machining box, and the output end of the first motor is connected with a lead screw; and a connecting base is slidably connected to the lead screw, a first sliding block is fixedly arranged at the upper end of the connecting base, a first sliding groove is formed in the top end of the inner side of the machining box, and the first sliding block is slidably connected with the interior of the first sliding groove. According to the grinding wheel polishing device, the first protective cover and the second protective cover are arranged to protect a grinding wheel which is being polished, so that unnecessary damage to workers caused by splashed sweeps generated in the polishing process is reduced, and the first motor, the lead screw, the first slid