Motor rotor production quality detection system

The invention relates to the technical field of automatic detection, in particular to a motor rotor production quality detection system which is provided with a rotor fixing rotating shaft, a pulse detection device, an image acquisition unit and a data processing module. The data processing module adjusts the pulse frequency of the pulse transmitting probe and the rotation rate of the rotor fixing rotating shaft before detection according to the size of the rotor, and judges whether a first pulse waveform image is qualified or not according to the average value of the wave crest height of the first pulse waveform image generated through detection. Calibrating wave crests which have great difference with the average wave crest height value in the qualified first pulse waveform image, and screening out wave crests of which the distance between the wave crests with the same height in the calibrated wave crests is the same as the preset period length to obtain a second pulse waveform image; and whether the rotor