Rotor rotation positioning sand sweeping mechanism

The utility model discloses a rotor rotating positioning sand sweeping mechanism which comprises an up-down lifting assembly, a rotating assembly, a clamping assembly and a brush assembly. The brush assembly comprises a lifting air cylinder, a brush fixing air cylinder arranged on the lifting air cylinder and a brush arranged on the brush fixing air cylinder. The clamping assembly is used for clamping a rotating shaft at the top end of the rotor, the brush fixing air cylinder drives the brush to move back and forth towards the rotor, and when the rotor is cleaned, the brush moves up and down and back and forth at the same time under driving of the lifting air cylinder and the brush fixing air cylinder, and copper sand on the rotor is cleaned away. A traditional structure is changed, the clamping assembly clamps the top end of the rotor rotating shaft, a commutator is located at the bottom end, the brush is driven to move up and down and back and forth, copper sand in gaps of the commutator is swept away, the