Numerical control milling method for square cambered surface pocket of retainer

The invention provides a numerical control milling method for a square cambered surface pocket of a retainer, which comprises the following steps: S1, selecting a machine tool and a cutter; a five-axis vertical machining center is selected as the machine tool, and a large-diameter end milling cutter, a small-diameter end milling cutter, a large-diameter ball-end milling cutter and a small-diameter ball-end milling cutter are selected as cutters; s2 and S3, workpiece positioning and interference elimination measurement are carried out, and S4-S13, workpiece deflection and milling machining of different cutters are carried out respectively. By the adoption of the method, a forming cutter does not need to be used, machining of the inner wall of the square cambered surface pocket hole of the retainer can be achieved through the standard ball end mill, ordering of forming milling cutters is reduced, and machining of the standard end mill on inverted half type ball pocket structures of retainers of the same type an