Finishing mechanism for metal casting production

The utility model relates to the field of metal casting finishing, in particular to a finishing mechanism for metal casting production, which comprises a base, the top end of the base is rotatably connected with a plurality of placing plates at equal intervals, the bottom ends of the placing plates are fixedly provided with transmission gears, and the transmission gears are arranged in the base. A transmission rack is slidably connected into the top end of the base and is in meshed connection with the transmission gear, a hydraulic cylinder is fixedly installed on one side of the base, the output end of the hydraulic cylinder is fixedly connected with one end of the transmission rack, and a plurality of grinding devices are arranged on one side of the base at equal intervals. According to the trimming mechanism for metal casting production, double-station exchange can be achieved through a 180-degree rotating structure arranged on equipment, feeding and discharging can be rapidly carried out, metal castings c