板材折弯弯曲工序的计算机辅助自动生成

Computer-Amded Automatic Generation of Bending Procedures for Sheet Metal Bending

利用基于特征信息建模生成零件的设计模型，通过加工特征自动提取和制造决策知识规纳，运用知识Ｐｅｔｒｉ网建模，开发了板材折弯计算机辅助工艺规划系统。该系统根据输入的零件图形自动生成折弯工序，并在计算机上进行仿真，成为ＣＡＤ和ＣＡＭ之间联系的纽带。

A design model for parts generation using feature-based information moddlling has beenworked out.By means of the automatic extraction of the processing features and the sum-ming up of manufacturing decision knowledge,a cornputer-aided process planning system forsheet metal bending with the Petri net for modelling has been developed.As a link betweenCAD and CAM,this system can automatically generate bending procedures according to theinput parts drawings and carry out computer simulation.