Overall structure design of CAD system for sheet metal development
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Overall structure design of CAD system for sheet metal development

Views:0     Author:Site Editor     Publish Time: 2020-04-20      Origin:Site

System overall structure design ideas and methods

For the overall structural design of the CAD system for sheet metal unfolding, the first problems to be solved are:

(1) Determine the main functions implemented by the system;

(2) Determine the overall structural design ideas of the system.



 The main function of the CAD system for sheet metal development

The sheet metal design module is embedded in some general-purpose computer-aided design software that is widely used now, through which we can carry out the solid modeling of sheet metal parts and obtain open sample images. Taking Pro / Engineer for computer-aided design of sheet metal as an example, first of all, according to the geometric structure characteristics of sheet metal parts, the sheet metal design module of Pro / Engineer is used to establish a three-dimensional solid model of sheet metal parts, and then the automatic expansion of sheet metal parts is carried out Stake out, and finally query the open drawing to obtain the geometric parameters of the open drawing of the sheet metal parts.

 


Obviously, this method is feasible to obtain the geometric parameters of the loft, but its operation is very complicated. It requires the designer to be proficient in 3D modeling technology and very complex CAD software. At this stage, this open method of sheet metal exhibition is difficult Promotion and application. The ultimate goal of sheet metal unfolding is to obtain open drawings and geometric parameters. For this purpose, 3D modeling is not practical. Therefore, it is necessary to design special CAD software for sheet metal unfolding, which can directly obtain the sheet metal parts. It is practical and simple to develop open sample images and expand geometric parameters.


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