Intelligent compensation processing method and system for thermal deformation of deep-cavity thin-wall car lamp mold

By constructing a multiphysics field coupling analysis of heat, flow and bubbles, the thermal characteristics of deep cavity thin-walled automotive lamp molds are quantified, and a dynamic jet compensation strategy is generated. This solves the problem of thermal stress concentration caused by uneven coolant flow and heat capacity differences during the processing of deep cavity thin-walled automotive lamp molds, and achieves high-precision thermal deformation control and surface quality improvement.

CN122401718APending Publication Date: 2026-07-17SHANWEI HENGJIA INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANWEI HENGJIA INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD
Filing Date
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively address the asymmetric thermal circulation and localized thermal stress concentration issues caused by uneven coolant flow distribution and differences in heat capacity during the processing of deep-cavity thin-walled automotive lamp molds, which affect processing accuracy and surface quality.

Method used

By constructing a multiphysics-fluid-bubble coupling analysis, the thermal behavior of the deep cavity and thin-walled regions is decoupled, thermal characteristics are quantified, the positive feedback mechanism of bubble retention and heat accumulation is revealed, a dynamic jet compensation strategy is generated, and thermal management is adaptively controlled to achieve precise thermal deformation control.

Benefits of technology

It significantly improves the machining accuracy and batch consistency of deep cavity thin-walled automotive lamp molds, reduces dimensional deviations caused by asymmetric deformation and local warping, and improves the surface quality and machining accuracy of the molds.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122401718A_ABST
    Figure CN122401718A_ABST
Patent Text Reader

Abstract

本申请涉及车灯模具技术领域,尤其是涉及面向深腔薄壁车灯模具的热变形智能补偿加工方法及系统。该方法包括:获取车灯模具加工信息集,基于车灯模具加工信息集,分析深腔结构导致的非对称热循环与薄壁区域的热惯性差异对冷却液流动与换热过程的耦合影响,得到热耦合信息集;基于热耦合信息集,分析冷却液稳定性与排气效率的关联关系,得到分层加工多因素信息集;根据分层加工多因素信息集,生成面向不同加工阶段的动态热变形智能补偿策略,并输出热变形智能补偿加工日志。有效解决深腔薄壁车灯模具加工中因非对称热循环、热惯性差异及冷却液流动与排气耦合效应导致的热变形难题,提升加工精度和表面质量。
Need to check novelty before this filing date? Find Prior Art