The Blanking Die CAD And Layout System

With the development of science and technology, the modern mode of production has been transformed intoa small-volume, multi-variety, high precision and real-time production. Producers have to increase the demanding response time. Blanking die design is a bottleneck which restricts the quality and efficiency of the production of some parts.And is also the key to solving the problem.According to the project's demands and the idea about the integration of layout process design and blanking die design, The paper researches the fast design system of blanking die based on parameter and optimal layout process especially, and developes the software of computer aided blanking die design based on parameter and optimal layout, which realizes the integration of layout process design and blanking die design. The main research work of this thesis is as follows:The framework, function model and information model of computer aided blanking die design and layout system is established. According to the contents and characteristics of blanking die design, the whole system is divided into four modules which are workpiece layout design, die structure and parts design, engineering drawing, and the database of standard parts and typical structures.The optimal layout algorithm of workpieces is researched. Based on polygonal vertex algorithm, better polygonal vertex algorithm is constructed pointedly, which is simple and effective. By use of the algorithm four basic layout modes of strip are realized.The 3D parametric modeling method based on feature is researched, by use of which 3D parametric model of parts and 3D parametric graphics library of parts are constructed. And the association and united management of graphics library and information database is completed.By systematic studying of the Blanking die CAD and Layout System architecture of the soft parts, under Windows xp operating system, the software prototype of the forementioned system is set up with SQL Server as database supporting system and Delphi as developing tool. The layout module and 2D parametric drawing module are developed with VC++.In the end, the paper concluds a summary and proposes directions for future research.