Spectacle production method and system based on finite element analysis

By optimizing parameters using a coupled three-dimensional finite element model based on finite element analysis and a multi-objective iterative algorithm, the problems of stress concentration and uneven distribution in traditional eyeglass manufacturing were solved, achieving an efficient and stable eyeglass manufacturing process and improving product quality and service life.

CN122366040APending Publication Date: 2026-07-10CHONGQING JIAYE GLASSES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-08
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional eyeglass manufacturing methods fail to achieve a quantitative correlation between frames, lenses, assembly gaps, wearing loads, and material aging, resulting in stress concentration and uneven distribution, which affects product durability and wearing experience. Furthermore, the lack of a real-time stress feedback mechanism leads to low production efficiency and unstable yield rates.

Method used

A coupled three-dimensional finite element model is constructed based on finite element analysis. The processing and assembly parameters are optimized by combining a multi-objective iterative algorithm. The parameters are collected and adjusted in real time to control stress, and closed-loop control is achieved through a digital twin model.

Benefits of technology

This resulted in a significant reduction in the maximum stress value in stress concentration areas, improved assembly fit, reduced rework rate, increased production efficiency, and extended lifespan of the glasses.

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Abstract

This invention belongs to the field of eyewear manufacturing technology, specifically relating to an eyewear manufacturing method and system based on finite element analysis. The method first collects parameters related to the material, assembly gap, dynamic stress, and material aging of the frame and lenses, constructing a three-dimensional finite element model coupling the frame, lenses, assembly micro-gap, dynamic stress, and material aging, and solving for nodal stress values. Then, a multi-objective iterative algorithm is used to simultaneously optimize processing and assembly parameters. During processing, parameters are collected in real time and deviations are automatically corrected. During assembly, pressure is applied according to zones and stress is detected in real time; if limits are exceeded, the assembly gap is adaptively adjusted. The system includes modules for parameter acquisition, coupled simulation prediction, dynamic optimization, linked processing, and assembly stress relief. This invention achieves precise control of assembly stress by constructing a dedicated eyewear coupling model, multi-objective iterative optimization, and full-process closed-loop control, significantly reducing stress concentration and rework rates, and improving production efficiency and product durability.
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