Automatic centering control method for magnetic centering device of steel plate double-side shear

The invention provides an automatic centering control method for a magnetic centering device of a steel plate double-side shear, and belongs to the technical field of metal machining. The method comprises the following steps of, firstly, installing a cold metal detector, two laser scribers and a plurality of industrial cameras in a magnetic force centering area of the steel plate double-side shear, photographing a steel plate and laser rays in the magnetic force centering area of the double-side shear through the plurality of industrial cameras, then splicing and identifying images to obtain the distance between the edge of the steel plate and the laser rays, calculating adjustment amount of the position of each electromagnet required for straightening and centering the steel plate according to the distance numerical value, and finally achieving automatic centering of the steel plate through lifting and transverse movement control of the electromagnets. According to the method, the control principle is simple