Rotary positioning mechanism of micromotor rotor

The invention relates to a rotary positioning mechanism of a micromotor rotor, and the mechanism comprises a rotary seat, a swing arm and a limiting plate; the swing arm comprises a swing arm body anda supporting arm body, and the supporting arm body enables the swing arm body to be hinged to the rotary seat through a pin shaft; the swing arm is connected with a limiting rod extending into the lower portion of the limiting plate, the limiting plate is controlled by a power cylinder installed on the rack to ascend and descend, and the limiting plate presses the limiting rod to form a swing armswing structure; a spring is arranged at the corner where the supporting arm and the swing arm are connected, and the spring is supported on the rotating base to form a swing arm reset structure. Therotating base is controlled by a motor installed on the rack to rotate, and a positioning piece arranged on the swing arm is inserted into a rotor groove of the rotor to stir the rotor to rotate, soan automatic rotating and po