SMT production line quality analysis platform based on digital twinning

Abstract

The invention discloses an SMT production line analysis platform based on digital twinning which is accurate in result and visual in process. According to the technical scheme, transmission of information and data is achieved between an SMT production line physical space and an SMT production line virtual space through a data bus, and a data layer divides the data into a design class, a process class, a quality class and an adjustment and measurement class according to data types and maps the data to a twinning layer in a virtual-real mode; the twinning layer organizes and couples the digitaltwinning bodies according to the functional relationship among the twinning bodies; wherein the analysis layer drives a quality prediction algorithm and a quality tracing algorithm through twinning bodies to perform tracing and quality prediction on the printing and welding quality of a production line, the system layer performs visual design based on the SMT production line digital twinborn library, the deep learning algorithm library and the quality prediction model and the quality tracing model in the model library; through an industrial prediction and quality tracing APP, the quality of the production line is visually displayed in real time in a three-dimensional space, and quality early warning is carried out in the product production process.

Description

technical field [0001] The invention relates to a digital twin-based surface mount technology SMT (Surface Mount Technology, SMT) production line quality analysis platform, which can realize the quality prediction and traceability of the SMT production line through APP. Background technique [0002] Surface Mount Technology (SMT) is a key technology in the electronics manufacturing industry, and the process of mounting equipment plays a vital role in the production quality of the entire SMT. With the rapid development of electronic information industry, SMT technology has become an indispensable part of electronic assembly technology. SMT technology refers to the direct welding of surface-mounted electronic components on the surface of the printed circuit board. Unlike the traditional insertion process, the components and solder joints of the SMT process are all on the same surface. And it has the advantages of miniaturization, large-scale and automation. [0003] SMT prod...

AI Technical Summary

Problems solved by technology

At present, most SMT production lines have only initially realized automation, and the level of intelligence in quality control is still relatively low. Due to the long process of SMT production lines, there are many factors that affect the quality of each process, and the quality of each process is directly related, and the assembly quality is difficult to quantify. Evaluation

[0004] In the actual application process, the quality management of the SMT production line is still relatively extensive. Once a quality problem occurs, it is difficult to accurately analyze the cause of the quality problem, and it is also difficult to take targeted solutions. Instead, it can only rely on the experience of personnel for analysis and processing , the processing cycle of quality problems is long, which affects the normal delivery of products

On the other hand, most of the management process still adopts the method of post-event control. It is difficult to control and accurately predict quality problems before they occur, and the effect of improving product quality is very limited.

[0005] The concept of digital twins was first proposed by Professor Grieves in the product lifecycle management course at the University of Michigan in 2003, and was defined as a three-dimensional model, including physical products, virtual products and the connection between them. Due to the limitations of knowledge, the concept of digital twins has not been taken seriously

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