Variable-distance cleaning and polishing device

The utility model discloses a variable-pitch cleaning and polishing device which comprises a base, a left-right translation bottom plate, a front-back translation bottom plate and a polishing and cleaning bottom plate, and the left-right translation bottom plate is arranged on the base in a sliding mode in the left-right direction. Through the arrangement of the base, the left-right translation bottom plate, the front-back translation bottom plate and the polishing and cleaning bottom plate, the variable-pitch polishing assembly and the variable-pitch cleaning assembly can be adjusted in the left-right direction, the front-back direction and the vertical direction, the machining and cleaning area is large, and adaptability is high; the distance between the first variable-distance grinding bearing seat and the second variable-distance grinding bearing seat can be changed, so that the distance between the grinding heads is adjusted, various machining requirements can be met, meanwhile, the machining precision i