面向网络制造数据共享的分离映射法

Separate-Mapping Method in Data Share Orientating the Network Manufacturing

研究ISO标准STEP-NC的描述语言——EXPRESS到XML的映射机制,提出面向网络制造数据共享的分离映射法.首先,按照拟共享信息的功用和特点,把STEP-NC物理文件离散成一般信息结构、特征结构和操作结构3个信息单元;然后,分别采用前期绑定和后期绑定实现优化式综合映射;最后,构建STEP/XML转换的系统模型.以圆孔加工为例,在STEP-NC Machine仿真平台上运行分离映射法与STEP/XML转换系统.

Stress is on the mapping mechanism from the standard description language of STEP-NC-EXPRESS to XML,presenting the separate-mapping method being transmitted in and date shared orientating the network.First,divide the physical file of STEP-NC into three structure elements,namely the general information structure,the feature information structure and the operating information structure,according to the function and feature of the information to be shared.Then,realize the optimally comprehensive mapping with the early binding and the late binding.Finally,build up STEP/XML conversion system.An example is given for component with a hole in running the separate mapping method on the STEP-NC machine simulation platform.