Embedded general welding tool bit positioning mechanism and polishing device

The utility model relates to the technical field of tool bit machining equipment, in particular to an embedded type general welding tool bit positioning mechanism and a polishing device. The embedded general welding tool bit positioning mechanism comprises a positioning end plate assembly, and the two surfaces, in the thickness direction, of the positioning end plate assembly are the first surface and the second surface correspondingly; the positioning end plate assembly is provided with a positioning channel penetrating through the first surface and the second surface, and the width of the positioning channel is gradually reduced from the first surface to the second surface; the positioning end plate assembly is further provided with a grinding groove, the grinding groove is formed in the second surface, and the positioning channel penetrates through the grinding groove. The embedded type general welding tool bit polishing device comprises the embedded type general welding tool bit positioning mechanism and