The invention discloses a
bevel gear machining method. According to the geometric parameters and the required tooth
system of a gear to be machined, the method comprises the following steps that: (1) the parameters of a shaping
gear wheel are determined; (2) the tooth traces of the shaping
gear wheel are determined; (3) the parameters of a cutter are determined; (4) the cutter movement on the
tooth surface of the shaping
gear wheel is determined; (5) the basic
tooth surface modification of the shaping gear wheel is determined; (6) the movement of the shaping gear wheel generating the gear is determined; (7) the movement of the gear generated by the shaping gear wheel is corrected; and (8) the generation of the gear to be machined is completed. The invention has the advantages that: (1) the
cutting and the
grinding of bevel gears with straight teeth, curved teeth, cycloidal teeth, quasi-
involute teeth and the like can be implemented on one
machine tool; (2) the dimension of the cutter is determined only by the module of the gear to be machined and has nothing to do with the
diameter of the gear to be machined and the tooth width; (3) the
diameter of the cutter or the
grinding wheel is small, the torque of the
machine tool spindle is small, the force applied to the
machine tool is small, the deformation of the
machine tool is small and the
machining accuracy is high; (4) the position, the dimension and the shape of the contact spots on the
tooth surface can be conveniently controlled and all kinds of theoretically full-conjugated
bevel gear pairs can be machined; and (5) the
transmission ratio function required by the gear pairs to be machined can be accurately realized.