The invention discloses an automatic assembling line for motors. The automatic assembling line for the motors comprises a frame, an automatic conveying belt, a motor rotor bearing bit synchronization oiling device, an automatic motor rotor bearing press-fitting device, an automatic spring
washer distributing and detecting device, a motor end cap press-fitting device, an automatic motor bearing gap detecting device, an automatic motor
ageing testing device and an automatic gluing
air dryer for the motors, wherein the automatic conveying belt which is electrically connected with a circuit controller is arranged on the frame; and the motor rotor bearing bit synchronization oiling device, the automatic motor rotor bearing press-fitting device, the automatic spring
washer distributing and detecting device, the motor end cap press-fitting device, the automatic motor bearing gap detecting device, the automatic motor
ageing testing device and the automatic gluing
air dryer for the motors are successively connected together by the automatic conveying belt and are electrically connected with the circuit controller. The automatic assembling line for the motors is high in assembling stability and good in assembling quality, and testing
automation of components of the motors can be realized.