High-hardness plate trepanning and edging system

The invention discloses a trepanning and edging system for a high-hardness plate. The trepanning and edging system comprises a trepanning and edging device and a trepanning and edging control device, the tapping and edging control device further comprises a distance measuring device. The measuring end comprises a grinding wheel and a spherical milling cutter, the V-shaped grinding wheel grinds a positioning groove in the surface of a plate, the spherical milling cutter machines a spherical concave surface at the positioning groove, the measuring end measures the maximum diameter of the spherical concave surface and compares preset hardness data, and a comparison result is used for controlling selection of the hardness of the cutter. The method has the beneficial effects that a universal standard cutter is used for drilling in the middle of high-hardness plates such as rock plates, a customized combined cutter or a forming cutter is replaced, the machining cost is reduced, meanwhile, different cutters are sele