基于STEP_NC的数控新标准.pdf

( ) 31 1 Vol. 31No. 1 2008 1 JOURNAL OF H EFEI UNIVERSITY OF TECHNOLOGY Jan. 2008 基于STEP2NC 的数控新标准 1 1 1 2 2 , , , M Wosnik , P Klemm ( 1. 合肥工业大学 机械与汽车工程学院, 安徽 合肥 23000 ; 2. 斯图加特大学 机床控制与生产工程研究所, 巴 2 符腾堡 斯图加特 70174) :文章在分析传统数控加工代码标准的主要缺点的基础上, 引入了STEP 标准与新一代数控标准 ST EP2NC 的概念, 并将采用 ST EP2NC 的加工流程与采用传统数控方法的加工流程这两者进行了比较。介 绍了ST EP2NC 简化的抽象数据模型及其EXPRESS2 G 表示法, 阐述了STEP2NC 数控程序的结构和内容, 简 要介绍了STEP2NC 所涉及的标准的范围和内容, 指出了STEP2NC 研究仍然面临的问题。 :产品模型数据交换标准; 数控接口标准; ISO 1464 , ISO 10303 : : A : 10032 5060(2008) 012 0131205 New st andar d on numer ically controlled mach in ing b ased on STEP2NC 1 1 1 2 2 XIA Lian , HU Jing , ZHAO Han , M Wosnik , P Klemm ( 1. School of Machinery and Automobile En gineering, H efei U niver sity of T echnology, H efei 23000 , China; 2. Institute for Contr ol Engineering of Machin e Tools an d Manufacturing Un its( ISW) , U niver sity of Stuttgart, Baden2W™urttemb erg, 70174 Stuttgart, Germa2 ny) Abstr act : Based on the analysis of the disadvantages of traditional GM codes, the concept of STEP and STEP2NC, which are the new standar ds of numer ic contr ol, are described. The machining pr ocess based on traditional GM codes is compared with that based on the STEP2NC. Simplified abstract STEP2NC data model and its EXPRESS2G representation are discussed, and the structure and content of the STEP2NC progr am and the scope and content of related standards are introduced. Some prob2 lems about STEP2NC are pointed out. Key word s: St