One kind of auto-programming method directly gener at ing the NC machining program by AutoCAD graph is discussed in this article. Firs tly, the article discusses the open type graphic interface of AutoCAD. Then the gr...One kind of auto-programming method directly gener at ing the NC machining program by AutoCAD graph is discussed in this article. Firs tly, the article discusses the open type graphic interface of AutoCAD. Then the graphic export among the AutoCAD, the adding of process information and the data storage, as well as technology of generating NC program has been introduced . Finally, a NC auto-programming system GAPS based on AutoCAD graph is develope d. The tendency of auto-programming is graphic auto-programming, because it posse sses these merits that the programming in the system is simple and the graph is perceived easily and the graphic data can be shared in many auto-programming sy stems. It is well known that AutoCAD is widely used graphic software in machiner y at present. The AutoCAD plotting function is more powerful than other special drawing-software in auto-programming system, and has provided the convenient o pen data interface for development of software. The AutoCAD has several kinds of open data graphic interfaces, and these interfaces are general among different versions. Chiefly, there are ASCII’s graphic exchange file (.dxf ) and the bina ry system graphic exchange file (.dxb ) in AutoCAD. We discuss the second fi le format right off here. The technology generating the NC machining program from AutoCAD graph is accompl ished by four relatively independent modules. In the auto-programming, NC progr am designer firstly carries on technology analysis to the part-drawing to estab lish the drawing scheme for auto-programming, later draws out the detail diagra m based on the analyzed in AutoCAD system. The graphic data is converted to the recognizable data structure in the system by the graphic data conversion module in the auto-programming system. Then the new data is joined process information at the process control module of system, and forms the cutter-orbit data. The cutter-orbit can generate the NC program as a result of the handle of the post -processing module of system.展开更多
文摘One kind of auto-programming method directly gener at ing the NC machining program by AutoCAD graph is discussed in this article. Firs tly, the article discusses the open type graphic interface of AutoCAD. Then the graphic export among the AutoCAD, the adding of process information and the data storage, as well as technology of generating NC program has been introduced . Finally, a NC auto-programming system GAPS based on AutoCAD graph is develope d. The tendency of auto-programming is graphic auto-programming, because it posse sses these merits that the programming in the system is simple and the graph is perceived easily and the graphic data can be shared in many auto-programming sy stems. It is well known that AutoCAD is widely used graphic software in machiner y at present. The AutoCAD plotting function is more powerful than other special drawing-software in auto-programming system, and has provided the convenient o pen data interface for development of software. The AutoCAD has several kinds of open data graphic interfaces, and these interfaces are general among different versions. Chiefly, there are ASCII’s graphic exchange file (.dxf ) and the bina ry system graphic exchange file (.dxb ) in AutoCAD. We discuss the second fi le format right off here. The technology generating the NC machining program from AutoCAD graph is accompl ished by four relatively independent modules. In the auto-programming, NC progr am designer firstly carries on technology analysis to the part-drawing to estab lish the drawing scheme for auto-programming, later draws out the detail diagra m based on the analyzed in AutoCAD system. The graphic data is converted to the recognizable data structure in the system by the graphic data conversion module in the auto-programming system. Then the new data is joined process information at the process control module of system, and forms the cutter-orbit data. The cutter-orbit can generate the NC program as a result of the handle of the post -processing module of system.
