Shape adjusting and assembling method and device for airfoil type large thin-walled workpiece

The invention discloses a shape-adjusting assembly method and device for an airfoil type large thin-walled workpiece, and the method comprises the steps: deducing the final posture position of each node meeting the allowable stress requirement and the assembly error range based on an assembly target position, and solving a plurality of groups of position solutions of the nodes; and the multiple groups of position solutions of the nodes are optimized based on the target function and the constraint conditions, the assembly error range is met, the internal stress of the thin-wall part is minimum, the optimal position solution of the nodes is finally obtained, and the optimal posture of the thin-wall part is obtained. And the thin-wall part is adjusted to the optimal posture by moving all the nodes. And finally, the thin-wall part is integrally moved to the assembly body, the thin-wall part is attached to the assembly body, and final assembly is completed. According to the method, the position of each attitude ad