Controllable-pitch propeller shell machining method

The invention belongs to the technical field of propeller assembly machining, and particularly relates to a controllable-pitch propeller shell machining method. Comprising the following steps: processing a first end face of a paddle shell by using two same pentagonal discs which are coincident in the same direction, and processing a second end face of the paddle shell by using a drill plate; the pentagonal plate comprises a base plate and a positioning plate, and the base plate and the positioning plate are arranged in a step shape. The invention provides a controllable-pitch propeller shell machining method which is used in the production and machining process of a controllable-pitch propeller shell, a pentagonal disc is arranged on one end face of the propeller shell, the pentagonal disc and the end face of the propeller shell are positioned through a first pin hole and a second pin hole in a positioning pin mode, and meanwhile coaxial positioning is achieved through a center hole and an end hole of the pro