【摘要】：在機(jī)械產(chǎn)品設(shè)計(jì)過程中工程圖的繪制占據(jù)了設(shè)計(jì)周期的大部分時(shí)間,設(shè)計(jì)人員在繪圖過程中由于結(jié)構(gòu)的變動(dòng)需要經(jīng)常對(duì)工程圖進(jìn)行修改,并且二維工程圖投圖工作較為繁瑣,圖樣中尺寸、注釋等標(biāo)注眾多。因此,由于工作量大且工作枯燥繁瑣,將導(dǎo)致人為疏忽錯(cuò)誤增多,工程圖質(zhì)量下降,產(chǎn)品設(shè)計(jì)周期延長(zhǎng)等問題。 針對(duì)設(shè)計(jì)人員在繪制工程圖過程中,繪圖工作繁瑣,尺寸、注釋標(biāo)注眾多、工作量大、易出錯(cuò)的特點(diǎn),本文將從以下幾方面進(jìn)行研究： (1)應(yīng)用圖形變換中齊次變換原理,借助三維模型與二維工程圖之間的關(guān)聯(lián)關(guān)系,研究實(shí)現(xiàn)二維工程視圖的智能生成。 (2)結(jié)合數(shù)據(jù)庫(kù)原理中關(guān)系模型的優(yōu)點(diǎn)建立工程圖視圖、尺寸、注釋等標(biāo)注參數(shù)數(shù)據(jù)庫(kù),將各生成操作以動(dòng)態(tài)操作鏈表的方式存儲(chǔ)。 (3)借助VB.NET編程語(yǔ)言,調(diào)用SolidWorks API (Application Programming Interface,應(yīng)用程序編程接口)提供的相應(yīng)函數(shù)實(shí)現(xiàn)工程圖中視圖、尺寸、注釋等的智能生成。 本文以橋式起重機(jī)智能CAD (Computer Aided Design,計(jì)算機(jī)輔助設(shè)計(jì))系統(tǒng)中卷筒組設(shè)計(jì)模塊為例說明了各視圖創(chuàng)建,尺寸、注釋等標(biāo)注的生成方法,并且說明了各生成操作參數(shù)數(shù)據(jù)庫(kù)的建立,以及動(dòng)態(tài)操作鏈表和命令序列的具體結(jié)構(gòu),實(shí)現(xiàn)了卷筒組裝配圖及各零部件工程圖的智能輸出。 工程圖智能生成的實(shí)現(xiàn)大大減少了設(shè)計(jì)人員的重復(fù)工作,縮短了產(chǎn)品的設(shè)計(jì)周期,提高了出圖質(zhì)量及效率,一定程度上降低了產(chǎn)品的設(shè)計(jì)成本,保證了產(chǎn)品的設(shè)計(jì)質(zhì)量,使產(chǎn)品更具市場(chǎng)競(jìng)爭(zhēng)力,為企業(yè)贏得了更大的收益。
[Abstract]:In the process of mechanical product design, the drawing of engineering drawing occupies most of the time of the design cycle, the designer often needs to modify the engineering drawing because of the change of structure in the drawing process, and the work of two-dimensional engineering drawing is more complicated. In the drawing size, the annotation and so on mark many. Therefore, because of the heavy workload and tedious work, it will lead to the increase of human negligence errors, the decline of engineering drawing quality, the prolongation of product design cycle and so on. In the process of drawing engineering drawings, designers have the characteristics of complicated drawing work, large size, large amount of annotation, heavy workload and easy to make mistakes. In this paper, the following aspects will be studied: (1) by applying the principle of homogeneous transformation in graphic transformation, the intelligent generation of two-dimensional engineering view is realized with the help of the correlation between 3D model and two-dimensional engineering drawing. (2) based on the advantages of relational model in the principle of database, the engineering drawing view, dimension, annotation and other annotated parameter databases are established, and each generating operation is stored in the form of dynamic operation linked list. (3) with the help of VB.NET programming language, the corresponding functions provided by the SolidWorks API (Application Programming Interface, application programming interface) are used to realize the intelligent generation of views, dimensions and annotations in engineering drawings. This paper takes the design module of reel group in the intelligent CAD (Computer Aided Design, CAD system of bridge crane as an example to illustrate the generating method of each view, dimension, annotation and so on, and the establishment of each generating operation parameter database. The intelligent output of assembly drawing of reel group and the engineering drawing of each part are realized by the structure of dynamic operation list and command sequence. The realization of intelligent generation of engineering drawings greatly reduces the repeated work of designers, shortens the design cycle of products, improves the quality and efficiency of drawing, reduces the design cost of products to a certain extent, and ensures the design quality of products. Make the products more competitive in the market, for the enterprise to win greater profits.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH122;TP391.72

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