Complex product assembly process accurate repair method based on digital twinning and operation system thereof

Abstract

The invention discloses a complex product assembly process accurate repair method based on digital twinning and an operation system thereof. For the key procedures in the product assembly process, actually measured data acquisition and processing are carried out on a part assembly matching area, the actually measured data and an ideal model are deeply fused, and a part digital twinning model is constructed; solving and updating the part assembly positioning constraint in combination with the planned assembly sequence to obtain a product digital twinning model; the digital twinning model of theproduct is used for pre-assembly simulation analysis, according to an assembly simulation analysis result and an assembly collision interference check condition, position information of a matching area, needing to be repaired, of a part and the minimum repair amount are obtained through calculation, a reasonable part repair scheme is given, and online repair and precise control over the assemblyprocess are completed. Intelligent closed-loop control over the complex product assembling process can be achieved, and important engineering significance is achieved for shortening the trial assemblyand repair time in the assembling process and improving the assembling precision and efficiency.

Description

technical field [0001] The invention belongs to the technical field related to virtual assembly simulation, and more specifically relates to a digital twin-based precise repair method for complex product assembly process and its operating system. Background technique [0002] Military complex products have the characteristics of a large number of parts, high assembly filling density, complex assembly relations and connection forms, and high assembly quality requirements. The assembly coordination control has become a weak link in the development process of military complex products. At present, in the single-piece small-batch production mode of aerospace and military complex products, in order to ensure the assembly accuracy requirements of key assembly links and avoid interference between parts during assembly, the coordinated control of product assembly often adopts the repair assembly method. Adjust and repair the tolerance items of selected parts to ensure product assemb...

AI Technical Summary

Problems solved by technology

[0006] The technical problems to be solved by the present invention are: in the current complex product assembly process, the fusion of virtual and real mapping is not enough, the assembly method at the assembly site lacks effective guidance, and there is uncertainty in the repair plan. It provides a complex product assembly process based on digital twins. Repair method and its operating system

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