Finish machining device and system for rare earth improved cast aluminum alloy

The invention discloses a rare earth improved cast aluminum alloy finish machining device and system, and relates to the technical field of cast aluminum alloy machining. The rare earth improved cast aluminum alloy finish machining device comprises a box body, a sealing cover, a drying mechanism, a tensioning mechanism, an adjusting mechanism and a circulating cleaning mechanism, a transverse plate is slidably installed in the box body, a cylinder is arranged at the top of the transverse plate, a vertical plate is fixedly installed on the outer wall of the rear side of the box body, and an impurity collecting box is arranged on the rear side of the box body; a shell is fixedly installed on the front side of the box body, a waterproof hydraulic rod is arranged in the box body, the sealing cover is arranged at the top of the box body, and a polishing roller is arranged at the bottom of the sealing cover. According to the rare earth improved cast aluminum alloy finish machining device, an aluminum alloy pipe can