Plate sheet stamping quality detection method for plate heat exchanger

The invention is applicable to the technical field of manufacturing of plate heat exchanger plates, and provides a rapid detection method for errors such as geometric dimensions after punch forming of the plate heat exchanger plates. The method comprises the steps that firstly, a calibrated binocular camera is used for photographing a plate heat exchanger plate within a certain distance, and point cloud data are obtained through operation processing; secondly, preprocessing the point cloud data, and processing by using algorithms such as plane fitting and cylinder fitting to obtain the actual geometric dimension of the sheet after punch forming; and finally, through comparative analysis of the actual geometric dimension and the designed geometric dimension of the plate, the geometric dimension error of the plate after punch forming can be obtained, and the method has the characteristics of low cost, simplicity, rapidness and the like, and is suitable for non-contact detection of the geometric dimension of the