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成都飞机工业公司在设计、制造某型飞机7项大型直纹面机翼壁板中,应用CATIA软件的SURF1功能,从建立数学模型、机翼数模曲面展开计算、绘制结构模线到数控加工,完全用计算机传递图形。将设计数据通过CATIA,在计算机荧屏上得到零件的展开图,并将此图直接应用在数控机床上加工零件。此项成果提高了程编效率,降低了出错率,并使依靠模线样板一模胎一展开实样一展开样板一外形投影样板一切面样板等工装的多环节传递工艺,改为计算机数字(图形)传递方式。同时,还可将展开图形绘制在明胶板上,直接用于检验零件。这种方法透明度高,精度高,且明胶板的使用保管极方便。采用此法制造大型壁板,节约了大量工艺装备及原材料和加工工时,缩短生产周期3个月,其经济效益与社会效益均可观。
Chengdu Aircraft Industry Corporation, in designing and manufacturing 7 large-scale straight-faced wing panels of a certain type of aircraft, applies the SURF1 function of CATIA software to develop mathematical models, , Completely using computer graphics. The design data through CATIA, on the computer screen to get the parts of the expansion plan, and the diagram directly applied to CNC machining parts. This result improved program efficiency, reduce the error rate, and to rely on the template a model tire to start a real sample of a shape projection model of all aspects of the template and other tooling multi-link transfer process, to a computer number ( Graphics) delivery method. At the same time, expand the graphics can also be drawn on the gelatin board, used directly to test parts. This method of high transparency, high precision, and the use of gelatin plates custody is very convenient. The use of this method to create large-scale siding, saving a lot of technology and equipment and raw materials and processing hours, shorten the production cycle of 3 months, its economic and social benefits are considerable.