Electric grinding equipment for metal processing

The invention belongs to the technical field of grinding equipment, and particularly relates to electric grinding equipment for metal machining, which comprises a connecting box, two bottom boxes are fixedly connected to the front side wall of the connecting box, a transmission rod is rotatably connected to the inner wall of the connecting box, and a first motor is fixedly connected to the right side wall of the connecting box. And the output end of the first motor is fixedly connected with the transmission rod, threaded rods are rotationally connected to the inner walls of the front sides and the rear sides of the two bottom boxes correspondingly, the rear ends of the threaded rods are located in the connecting boxes and fixedly connected with bevel gears, and the rod walls of the transmission rods are fixedly sleeved with bevel gear rings matched with the bevel gears. According to the plate polishing equipment, when a plate is polished, the upper side wall and the lower side wall of the plate can be automat