STEP-NC车削特征的扩充及应用  

Extension and application of turning features based on STEP-NC

作　　者：刘涛[1] 韩振宇[1] 张建超[2] 王永章[1] 富宏亚[1] 

机构地区：[1]哈尔滨工业大学机械制造及自动化系 [2]石家庄铁道学院工程训练中心,河北石家庄050043

出　　处：《计算机集成制造系统》2008年第7期1380-1385,共6页Computer Integrated Manufacturing Systems

基　　金：黑龙江省科技攻关重点资助项目(GB05A501)~~

摘　　要：为实现与产品模型数据交换标准兼容的数控数据接口(STEP-NC)在车削加工中心中的应用,扩充了STEP-NC车削特征。首先归纳了STEP-NC特征按从属关系的分类,提出了所扩充的三维车削特征例如铣削槽、径向圆周孔、复制车削特征等,阐述了各个特征实体的意义以及所包含的子类型,详细论述了各个特征参数的意义和表达方式。最后,按照所提出的车削特征的具体参数格式,编写了两个STEP-NC车削程序实例,通过所开发的STEP-NC车削仿真系统,对两个实例的刀具轨迹及零件模型进行了切削仿真。仿真结果表明,所扩充的三维车削特征正确可行。To realize application of STandard for the Exchange of Product model data-compliant Numerical Control data interface （STEP-NC） in turning center, STEP-NC turning feature was extended. Firstly, classification of STEP-NC features according to hypotaxis was summarized. Extended three-dimensional turning features as milling groove, radial round hole and replicate turning feature were presented. The meaning and inclusive subtypes of every feature entity were discussed. The parameter meaning and representation for every feature were studied in particular. Finally, according to detailed param- eter format of presented turning feature, two STEP-NC turning programs were programmed. A cutting simulation was performed to the toolpath and workpiece model of every program by the exploited STEP-NC turning simulation system. Result verified the feasibility of the extended three-dimensional turning features.

关 键 词：车削中心 车削特征 产品模型数据交换标准 数控数据接口 铣削槽 径向圆周孔 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]