Workpiece surface treatment method based on image recognition and shot blasting machine

The invention discloses a workpiece surface treatment method based on image recognition and a shot blasting machine, and relates to the field of shot blasting machines. The shot blasting machine comprises a shot blasting device, a translation device, a camera device, an image processing module and a control unit. After the shot blasting device machines a workpiece, the camera device shoots an image and transmits the shot image to the image processing module, the image processing module converts the image into a gray level image, identifies defective spots according to the gray level value of each pixel point on the gray level image and generates identification information, the identification information comprises the number of defective pixel points, the total number of the pixel points of the gray level image and coordinates of the defective pixel points, and the control unit judges whether machining is qualified or not according to the identification information and controls the shot blasting device and the translation device to conduct secondary machining on the unqualified workpiece. According to the method and the shot blasting machine, the shot blasting treatment effect can be effectively improved, the repeated loading process caused by unqualified workpieces is avoided, and the working time is saved.