Flexible rapidly-adjusting self-centering adsorption tool and centering method suitable for energetic rotary part

The invention discloses a flexible rapidly-adjusting self-centering adsorption tool and centering method suitable for an energetic rotary part, and belongs to the field of composite material machining. The flexible rapidly-adjusting self-centering adsorption tool comprises an adsorption disc body and an alignment device, wherein the upper part of the adsorption disc body is an adsorption end surface; a main gas adsorption pipeline penetrating through the adsorption end surface is formed in the middle part in the adsorption disc body; a concentric ring cavity structure with the diameter which is gradually increased is formed in the adsorption end surface of the adsorption disc body; three vent holes are formed in the direction perpendicular to the adsorption end surface in each ring cavityevery 120 degrees, and the adjacent vent holes in the adjacent ring cavities are located in the same straight line; the vent holes located in the same straight line are provided with opposite thread hole channels in the direc