A system structure for virtual machining system is built according to the machining environment of box type parts with the basic core layer, manufacturing system layer and interfacial layer included.
针对箱体类零件加工环境建立虚拟生产加工系统体系结构，该体系结构包括基础核心层、制造系统层、界面层的三层结构。
A test system of precision machining based on virtual instrument is introduced. The theory of this test system and realization of hardware and software are discussed.
文章提出了一种基于虚拟仪器技术的精密加工测试系统，并讨论了这种测试系统的原理以及硬件和软件的实现。
Synthesizing the errors given in the three coordinate systems in a proper way, the virtual parts containing errors are built up, which lays the foundation for machining accuracy prediction.
通过引入三个坐标系的误差及其映射关系，从而得到含有误差的虚拟工件，为加工精度预测奠定了基础。
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