Abstract: As a basic equipment for manufacturing,CNC machine tools are developing towards high speed,high precision,high flexibility and high intelligence.For the intelligent needs of virtual commissioning,health management and performance evaluation of CNC machine tools in intelligent manufacturing,a digital twin implementation framework of CNC machine tools for intelligent applications was established,a digital twin multi-domain modeling process based on geometric,physical and data models was proposed,and the key enabling technologies in the construction of digital twin models was studied.A multi-layer hierarchical CNC machine tool digital twin function implementation framework was built to promote the implementation of digital twin intelligent applications of CNC machine tools.It also develops A digital twin CNC machine tool application system based on the industrial internet architecture was developed,a CNC machine tool twin model in virtual space was constructed using data information in physical space,and the performance evaluation,health management,virtual debugging and other intelligent application service modules was established to realize intelligent applications of digital twin CNC machine tools and improve the intelligence level of CNC machine tools.

Key words: CNC machine tool, digital twin, multi-domain modeling, intelligent application

摘要： 数控机床作为制造业的基础装备,正朝着高速度、高精度、高柔性和高智能化的方向发展。针对智能制造中数控机床虚拟调试、健康管理、性能评估等智能化的需求,建立面向智能应用的数控机床数字孪生实现框架,提出基于几何、物理和数据模型的数字孪生多领域建模流程,研究数字孪生模型构建过程中的关键赋能技术;构建多层分级数控机床数字孪生功能实现框架,推动数控机床数字孪生智能应用实施;基于工业互联网架构开发数字孪生数控机床应用系统,利用物理空间的数据信息,在虚拟空间构建数控机床孪生模型,建立性能测评、健康管理、虚拟调试等智能应用服务模块,实现数控机床数字孪生的智能应用,提高数控机床智能化水平。

关键词: 数控机床, 数字孪生, 多领域建模, 智能应用