Cone hyperboloid gear milling positioning measuring tool and gear milling method

The invention discloses a cone hyperboloid gear milling positioning measuring tool and a gear milling method and relates to the technical field of cone hyperboloid gear production. The method comprises the following steps that A, the measuring tool is prepared and comprises a fixing base, a dial gage base, a dial gage rod and a dial gage; the fixing base can be connected with a machine tool; the dial gage base has magnetism, the dial gage base is arranged on the fixing base in an attracted mode, and the dial gage rod is connected with the dial gage rod base and the dial gage; B, the measuring tool is arranged on a milling machine; C, gears with processed convex surfaces are arranged on the milling machine; D, the convex surfaces are processed; E, the position of the dial gage is adjusted, so that the gage head of the dial gage is in contact with one convex surface, and then the dial gage is returned to zero; F, the gears with processed convex surfaces are disassembled, and the next gear is assembled; G, the g