Shield cutter brazing assembly method and device

The invention provides a shield cutter brazing assembly method and device. The shield cutter brazing assembly method comprises the steps that S1, shot blasting is conducted on a shield cutter base body through a shot blasting machine; s2, impurities, influencing the brazing quality, on the surface of the hard alloy block are removed; s3, hard alloy blocks matched with the grooves of the shield cutter base body in size are screened out, and a sand blasting device is used for conducting grinding and sand blasting treatment on the shield cutter base body and the hard alloy blocks; s4, immersing the cleaned hard alloy block into the molten brazing filler metal crucible, and immediately taking out and cooling the hard alloy block; s5, a steel sheet is welded in the groove of the shield cutter base body, and welding slag generated in the welding process is removed; s6, the periphery of the groove of the shield cutter base body, the periphery of the brazing filler metal piece and the periphery of the hard alloy bloc