摘要
提出一种基于STEP的自动编程方法,快速准确编制大型模具的孔与平面加工程序。建立模具三维模型STEP中性文件EXPRESS语言与VC++的映射关系,设计词法分析模块处理文件信息,提取模具几何信息。对提取的孔特征和平面特征的几何信息进行归类统计,优化刀具路径后,生成NC子程序,用于定义刀具路径。根据加工工艺,设计NC主程序代码模板,设定工艺参数,调用子程序,实现孔和定位平面的快速自动编程。提高了大型模具的编程效率和质量,是STEP-NC技术的有益探索。
An automatic programming method based on STEP is proposed to quickly and accurately compile the NC program of hole and plane of large-scale mold. The mapping relationship between the STEP file EXPRESS language of the mould 3D model and the VC ＋＋ is established. Mould geometry information is extracted,by designing lexical analysis module to process file information. The geometrical information of the hole and the plane is classified,then the NC subroutine is generated,which is used to define the tool path.According to the processing technology,the NC main program code template is designed to set the process parameters and call the subroutine. The fast automatic programming of the hole and the positioning plane improves the programming efficiency and quality of the large-scale mold,and it is a useful exploration of STEP-NC technology.
作者
赵文辉
张琪
段振云
孔令斌
ZHAO Wen-hui ZHANG Qi DUAN Zhen-yun KONG Ling-bin(School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870 ,China)
出处
《组合机床与自动化加工技术》
北大核心
2016年第10期142-144,共3页
Modular Machine Tool & Automatic Manufacturing Technique
基金
"十二五"国家科技支撑计划(2015BAH47F02)
