Automatic detection device and detection method for trapezoidal alnico magnetic flux

The invention relates to an automatic detection device and detection method for trapezoidal alnico magnetic flux. The device is characterized by comprising a machine frame, a feeding device, an automatic grabbing device, a magnetizing device, a separation blanking device and a control host. The feeding device, the automatic grabbing device, the magnetizing device and the separation blanking device are all arranged on the machine frame and connected with the control host. The automatic detection device and detection method for trapezoidal alnico magnetic flux have the advantages that the device is an alnico magnetizing detecting and conveying integrated device, high-efficiency operation is achieved, the previous manual productivity which is 90-110 Pcs/h is increased to 1000 Pcs/n or so, and efficiency is improved by about ten times; no manual errors exist in a detection result, detection is accurate and reliable, and magnetizing consistency is good; because of automatic integration, workers only need to add materials, and manpower is saved; in an original mode, magnetizing coils and magnetizing power sources are wasted a lot, and in an existing mode, energy is saved to a large extent.