The commissioning of Computerized Numerical Control Machine Tools (CNCMTs) is particularly important and the commissioning quality directly affects its product processing. However, traditional commissioning methods are not suitable for complex and changeable machining conditions during operation, and the derived commissioning results have limited effectiveness. Therefore, this paper proposes a digital twin-driven virtual commissioning method to simulate the machining processes in a virtual environment and perform virtual commissioning to obtain better commissioning results. Firstly, a digital twin model is constructed using a multi-domain unified modeling language combined with a virtual-real mapping strategy to describe the response characteristics of CNCMTs. Secondly, a complex machining scene is simulated based on the twin model, and a virtual commissioning strategy and platform are constructed in this environment. Finally, the effectiveness of the proposed method is verified by taking the spindle system of CNCMTs as an example. The experimental results show a 13% short in response time and a 54% reduction in total systematic error along with a decrease in commissioning time.

数控机床（CNCMT）的调试尤为重要，调试质量直接影响其产品加工。然而，传统的调试方法不适用于运行过程中复杂多变的加工条件，得出的调试结果效果有限。因此，本文提出一种数字孪生驱动的虚拟调试方法，在虚拟环境中模拟加工过程，进行虚拟调试，以获得更好的调试效果。首先，采用多领域统一建模语言结合虚实映射策略构建数字孪生模型来描述CNCMTs的响应特性。其次，基于孪生模型模拟了一个复杂的加工场景，并在此环境下构建虚拟调试策略和平台。最后，以CNCMTs主轴系统为例，验证了所提方法的有效性。实验结果表明，响应时间缩短了 13%，总系统误差降低了 54%，同时调试时间也缩短了。