Leftover material cleaning device for metal casting machining

The utility model discloses a leftover material cleaning device for metal casting machining. Workbench, a strip-shaped groove is formed in the upper surface of the workbench. Two bearings a are connected to the inner side wall of the strip-shaped groove in a clamped mode, rotating shafts a are arranged in the two bearings a in a sleeved mode, the opposite ends of the two rotating shafts a are fixedly connected with the two ends of a lead screw correspondingly, and two threaded cylinders are in threaded connection with the outer surface of the lead screw and fixedly arranged on the lower surfaces of the two clamping bases correspondingly. A workpiece is placed between the two clamping seats; then the hand wheel is rotated to enable the two clamping seats to get close to each other to clampthe workpiece; the cutting machine is started through an external power supply; the workpiece leftover material cutting device has the advantages of being good in fixing effect, simple in structure, easy to operate, low in pr