Positioning method of mold blank for process data mining

The invention provides a positioning method of a mold blank for process data mining. According to the positioning method, a blank positioning structure is additionally arranged on a mold, when the blank is placed, a sunken part of a plate is supported through a supporting plate to position the blank, before stretching forming, a V-shaped notch is cut in the blank through upper mold notch cutter blocks on the two sides to fix the plate, and it is ensured that the blank is stably positioned in the stretching process. The mold with the blank positioning structure comprises an upper mold body, theupper mold notch cutter blocks are arranged on the upper mold body and located at the deep V position of the upper mold body, a blank positioning mechanism is arranged beside the upper mold notch cutter blocks and comprises a supporting plate mounting seat, an air cylinder lug shaft is arranged on the supporting plate mounting seat, an air cylinder is arranged on the air cylinder lug shaft, the supporting plate is arrang