The utility model discloses an automatic
polishing device for an outer circle of an end part. The automatic
polishing device comprises a mounting rack and a fixing plate, a driven belt wheel is arranged on the fixing plate through a bearing, the inner ring of the bearing is fixedly connected to the fixing plate, and the outer ring of the bearing is fixedly connected to the driven belt wheel; the driven belt wheel is connected with a driving belt wheel on an output shaft of the motor through a
transmission belt; two groups of
polishing assemblies are arranged on the driven belt wheel, and each group of polishing
assembly comprises a mounting plate hinged to the driven belt wheel, a driving roller fixedly connected to a hinged shaft, a driven roller connected to the mounting plate and an annular
abrasive belt; the hinged shafts penetrate through the driven belt wheel, driven gears are fixedly connected to the rear sides of the hinged shafts, and the driven gears are meshed with gear rings fixedly connected to the inner rings of the bearings. A core shaft of one driven roller in each group of polishing components is connected with a
piston rod of a respective
abrasive belt tensioning cylinder; an air
slip ring is fixedly connected in an inner ring of the bearing; the utility model has the advantages of high degree of
automation, simple operation, safety and reliability, high
processing efficiency and
processing precision, long service life, greatly improved labor efficiency, and saved cost.