Automatic quality inspection method

The invention relates to an automatic quality inspection method. The automatic quality inspection method sequentially comprises the following steps: (1) analyzing a defect corresponding relationship between each process parameter of injection molding equipment in an injection molding process and a defective product; (2) expanding according to the defect corresponding relationship to obtain a defect parameter range value of each process parameter of the defective product; (3) inputting the obtained defect parameter range value of each process parameter into an upper computer; (4) collecting each real-time process parameter of the injection molding equipment, feeding back to the upper computer, and judging by the upper computer: if a certain process parameter is in a corresponding defect parameter range value, judging that the injection molding product has a corresponding defect and belongs to a defective product by the upper computer; if each real-time process parameter is beyond the corresponding defect param