STEP-NC数控程序的信息提取与校验方法研究  

Extraction and Validation of NC Information from STEP-NC File

作　　者：刘日良[1] 张承瑞[1] 张先芝[1] 徐元凡[1] 

机构地区：[1]山东大学机械工程学院,山东济南250061

出　　处：《工程图学学报》2009年第2期149-154,共6页Journal of Engineering Graphics

基　　金：国家自然科学基金资助项目(50675123);教育部留学回国人员科研启动基金资助项目;山东省优秀中青年科学家奖励基金资助项目(2007BS05005)

摘　　要：分析了STEP-NC数据模型及数控程序的组织结构。针对STEP-NC条件下的CAD/CAM/CNC集成,研究了从STEP-NC文件到数控加工之间所涉及的问题和关键技术,包括信息提取、现场工艺规划以及基于工步的刀具轨迹计算方法等。实现了STEP-NC信息的自动提取和刀具轨迹自动生成等主要功能模块的开发。The STEP-NC data model is overviewed and analyzed. Having identified the major issues for the realization of STEP-compliant NC manufacture of mechanical parts, a method is presented for extracting NC information from a STEP-NC file using the STEP-oriented class libraries, and a framework is outlined for determining the process-related details with respect to CNC manufacture, as well as calculating and graphically validating the toolpaths at the shop floor. These have been implemented with C＋＋ and tested through case study using an example AP238 file.

关 键 词：计算机应用 STEP-NC数据模型 数控程序 信息提取 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术]