Polishing device for aluminum alloy door and window machining

The utility model discloses a polishing device for aluminum alloy door and window processing, which comprises a dust purifying box, the top of the dust purifying box is fixedly provided with a workbench, the two sides of the top of the dust purifying box are both fixedly provided with mounting racks, the tops of the two mounting racks are both provided with hydraulic telescopic rods in a penetrating manner, and the hydraulic telescopic rods are fixedly connected with the workbench. And blocking covers are fixedly mounted at the driving ends of the two hydraulic telescopic rods. According to the grinding device for aluminum alloy door and window machining, the blocking cover, the transverse shaft, the hydraulic telescopic rod, the workbench, the adjusting mechanism, a first sliding rail, a sealing strip, an electric push rod, an electric sliding block, a mounting plate, a first motor, a grinding disc, a second motor, a limiting block, a limiting groove, a second rack, a gear, a fixing plate and a grinding mech