The invention provides an automobile transmission gear
machining method and a clamp thereof, and relates to the technical field of gear
machining. The automobile transmission gear
machining method comprises the following steps that a turning and milling composite
machine tool is adopted for machining, the left side of a
gear tooth top circle of a to-be-machined gear is clamped, the right side of the
gear tooth top circle of the to-be-machined gear, a gear right side end
face structure, an inner hole structure and an inner hole left end face are turned, and then the direction is turned to clamp the right side of the
gear tooth top circle of the to-be-machined gear; turning the left side of the addendum circle and the left side end
face structure of the gear; performing
hobbing on the
tooth surface of the gear according to the left end surface of the inner hole and the inner hole positioning, removing burrs generated by
hobbing by using a chamfering
machine, and performing heat treatment after cleaning and blow-
drying after chamfering; and clamping the gear by adopting a clamp with a circular ring clamping piece which is consistent with the maximum outer
diameter of the gear, and then carrying out hard turning on the gear subjected to heat treatment, and turning an inner hole, an inner hole left end surface and an inner hole right end surface. The technical effect of improving the working efficiency is achieved.