The invention provides an auxiliary
assembly positioning method and
system for a helicopter lift force
system. The method comprises the steps that auxiliary
assembly racks are installed on a main
propeller hub and a designated supporting arm of an automatic inclinator correspondingly; the target balls are installed on the main
propeller hub, all supporting arms of the automatic inclinator and fork lug bolt connecting holes correspondingly; the target balls are installed on a main shaft, a
cartridge receiver and supporting legs of the main speed
reducer; a
binocular vision scanning camera is placed on the side of the
assembly area; the attitude
tracking system locates the position of the workpiece and establishes a digital twin model; the path planning
system determines an assembly path based on a digital twin model; the
binocular vision scanning camera and the target ball are combined with the attitude
tracking system, so that
time domain and space domain information of the main speed
reducer, the main
propeller hub and the automatic inclinator can be collected and analyzed in real time, and position attitudes of the main speed
reducer, the main propeller hub and the automatic inclinator are analyzed; the positioning precision is improved, the assembling and positioning time is shortened, and the safety is improved.