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Digital twinning-based assembly precision simulation analysis method and system

A technology of simulation analysis and assembly accuracy, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of insufficient depth of virtual and real mapping, lack of assembly site assemblability prediction methods, etc., to improve assembly quality and efficiency. Effect

Inactive Publication Date: 2019-03-08
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that: in the current product assembly process, the depth of virtual-real mapping is not enough, and the means for predicting the assemblability of the assembly site is missing, and a method and system for simulation analysis of assembly accuracy based on digital twins are provided.

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  • Digital twinning-based assembly precision simulation analysis method and system
  • Digital twinning-based assembly precision simulation analysis method and system
  • Digital twinning-based assembly precision simulation analysis method and system

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Embodiment Construction

[0047] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0048] like Figure 1-9 As shown, this embodiment includes the following steps:

[0049] (1) Twin data collection, expression and processing

[0050] The twin data of the physical assembly site of the key assembly process is collected and processed, and the twin data information is expressed and stored, so that it can have the ability to simulate the actual physical assembly process based on the twin data and the twin model. The twin data includes matching process information, measurement information of key features, and tooling information.

[0051] The expression of the assembly process uses key features and d...

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Abstract

The invention discloses a digital twinning-based assembly precision simulation analysis method and system. According to the digital twinning-based assembly precision simulation analysis method and system, as for key processes in complex product assembly, the twin data of a physical assembly site are collected and processed, and twin data information is expressed and stored; an assembly process model is obtained in a 3D assembly process design system, and the assembly process model is reconstructed based on the twin data, so that an assembly process twin model is generated; the assembly processtwin model is introduced into commercial assembly tolerance analysis software, so that assembly precision simulation and sensitivity calculation can be performed; and the online compensation and precise control of the assembly process are performed according to assembly process precision simulation analysis results. With the digital twinning-based assembly precision simulation analysis method andsystem of the invention adopted, the deep fusion of the physical space and information space of the assembly site can be realized. The method and system are of great significance for realizing the intelligent closed-loop control of a complex product assembly process and improving assembly quality and efficiency.

Description

technical field [0001] The invention relates to an intelligent assembly precision simulation technology, in particular to a digital twin-based assembly precision simulation analysis method and system. Background technique [0002] Assembly is a key link in the product development process. It assembles parts according to the specified technical requirements, and makes them qualified products after debugging and inspection. According to statistics, in modern manufacturing, the assembly workload accounts for 20% to 70% of the entire product development workload, with an average of 45%, and the assembly time accounts for 40% to 60% of the entire manufacturing time. The assemblability and assembly quality of the product not only directly affect the product performance, but also the assembly usually takes a lot of manual labor, high cost and belongs to the back end of the product production work. Improving the assembly production efficiency and assembly quality has more important ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 田富君周红桥陈兴玉张红旗魏一雄陈亮希郭磊周金文张燕龙苏建军
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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