The mould design program of injection piston was written withVisuaLISP based on AutoCAD 2000. It can draw product drawing and die drawing automatically according to the product size provided by the user. A lot of dialog boxes are used to be helpful to the data-in and drawing. The program also realizes die design of irregular section.%以AutoCAD2000为功能平台,用VisualLISP进行二次开发,编制了注射胶塞的注射模具设计系统。该系统能够根据用户提供的产品尺寸,自动绘制制品的产品图和模具图。编制过程中运用大量对话框,利用其友好图形界面辅助数据输入和图形绘制,实现非规则断面的模具计算机自动设计。
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