摘要
根据NC车削自动编程系统的需要,为高效输入图形零件信息,实现数控编程的自动化,确定了基于回转体零件的数据结构(包括几何信息和工艺信息)。通过求交算法实现各图素的特征提取和输入,客户可在屏幕上点选特征图素并同时输入其对应的工艺信息,随后通过动态绑定技术利用数据库来进行数据处理和储存。不同的特征图素将产生不同类型的表,可通过打开数据库的方式使零件图形输入并重现,最终实现输出系统所需的数据结构,提高了图形输入效率,为虚拟化数控加工仿真提供技术支撑。
According to the requirement of NC lathe turning automatic programming system,in order to solve how to express and put in parts information effectively, realizing NC programming automation, it has set up the data structures of parts of revolution solid （including geometric information and processing information）.Through the method of intersection algorithm, it can put the pixel feature extraction information as well as its processing information in when clients pick up the pixel needed, realizing dealing with its data processing and storing its data structure with the dynamic link library tech- nology. As it goes, different graphic pixel generates different types of lists and it can make the graphic input and reappear on the screen by different ways of opening database, realizing output of data structure required by the system.The efficiency of graphic input is improved, with technology support for visualization of virtual machining of the NC lathe turning offered.
出处
《航空制造技术》
2017年第1期94-98,102,共6页
Aeronautical Manufacturing Technology
关键词
数控
数据结构
特征提取
数据库
数据处理
图形输入
NC
Data structures
Feature extraction
Database
Data processing
Graphic input
