Feeding mechanism for tail buckle milling of nut-type workpieces as well as milling device and milling method

The invention discloses a feeding mechanism for tail buckle milling of nut-type workpieces, and a milling device. The feeding mechanism comprises a driving component, a cylindrical cam and a cam follower, wherein the lower end of the cylindrical cam is fixed with the driving component; the driving component is used for driving the cylindrical cam to rotate; a first containing groove, used for containing the nut-type workpieces, is formed in the center of the end face of the upper end of the cylindrical cam along the axial direction; the cylindrical face of the cylindrical cam is provided witha spiral groove, and the screw pitch of the spiral groove is the same as those of the nut-type workpieces; the cam follower comprises a fixed end and a working end; the working end extends into the spiral groove. The feeding mechanism utilizes the principle of a cylindrical cam mechanism to realize the screw feeding of the tail buckle milling, thus expanding the potential of general milling equipment in space cured surfac