Impeller milling method and device, computer equipment and computer readable storage medium

The invention discloses an impeller milling method and device, computer equipment and a computer readable storage medium, relates to the technical field of manufacturing, and can avoid sudden load change, improve the impeller machining efficiency, reduce tool path redundancy, reduce tool wear and shorten the impeller machining period. The method comprises the steps that a cycloid track is obtained, a cutter is controlled to conduct slotting operation on a to-be-machined part according to the cycloid track, and a roughly machined part is obtained; establishing a parameter domain with a tool path for each flow channel by utilizing a tiled micro-arc mapping algorithm and a cycloid path, and converting the parameter domain with the tool path of each flow channel into a tool contact milling path; calculating a plurality of cutter axis vectors corresponding to the plurality of cutter contacts by using the cutter contact milling tracks of the plurality of runners, and calculating a plurality of cutter location point