Automatic positioning system for plate bending

The invention discloses an automatic positioning system for plate bending. The automatic positioning system comprises a feeding system in the x-axis direction of a coordinate system and a centering system in the y-axis direction. The coordinate system is established by taking the center of a plate with a set size as an original point, the length direction of the plate with the set size as an x axis and the width direction of the plate with the set size as a y axis; wherein the feeding system can be propelled along the positive half axis of the x axis or far away from the origin of the coordinate system; and the centering system can be simultaneously propelled or far away from the origin of the coordinate system along the positive half axis or the negative half axis of the y axis. The plate bending device has the beneficial effects that the working intensity of workers can be reduced through automatic feeding, meanwhile, the fed plates are aligned and accurately positioned in the bending process, the postures