【摘要】：數(shù)控加工是CAD/CAM技術(shù)中的重要環(huán)節(jié)之一，隨著現(xiàn)代化制造業(yè)中加工零件的不斷復(fù)雜化和數(shù)控技術(shù)本身的不斷提高，數(shù)控加工程序的復(fù)雜程度不斷提高，因此對(duì)數(shù)控加工代碼的正確性進(jìn)行驗(yàn)證的必要性也越來(lái)越高。數(shù)控加工三維圖形仿真是一種使用具有立體感的三維圖形來(lái)對(duì)實(shí)際加工過(guò)程進(jìn)行仿真的技術(shù)，是目前驗(yàn)證數(shù)控加工程序的正確性的有效手段之一，對(duì)縮短工業(yè)產(chǎn)品的研發(fā)周期和降低研發(fā)成本有重要的現(xiàn)實(shí)意義。本文設(shè)計(jì)并實(shí)現(xiàn)的三維圖形仿真系統(tǒng)除了可以對(duì)數(shù)控加工程序的正確性進(jìn)行驗(yàn)證，同時(shí)還可用于教學(xué)培訓(xùn)等領(lǐng)域，降低學(xué)習(xí)數(shù)控加工的成本。在經(jīng)濟(jì)型的嵌入式數(shù)控系統(tǒng)上實(shí)現(xiàn)三維圖形仿真，實(shí)現(xiàn)了功能的增強(qiáng)和用途的拓展，可以有效的提高該產(chǎn)品在市場(chǎng)上的競(jìng)爭(zhēng)力，具有較高的經(jīng)濟(jì)價(jià)值。 作者在充分分析和研究了現(xiàn)有各種數(shù)控圖形仿真技術(shù)的基礎(chǔ)上，針對(duì)嵌入式系統(tǒng)的特性進(jìn)行一定的優(yōu)化，從而設(shè)計(jì)并實(shí)現(xiàn)了一種高效率的圖形仿真算法，并將其應(yīng)用于實(shí)際產(chǎn)品上。本文的主要工作具體體現(xiàn)在下述幾個(gè)方面： (1)在現(xiàn)有研究成果的基礎(chǔ)上，根據(jù)圖形仿真系統(tǒng)的具體功能需求進(jìn)行了方案設(shè)計(jì)，以基于ARM Cortex-A8微處理器作為核心運(yùn)算平臺(tái)，并在WindowsCE6.0嵌入式系統(tǒng)上采用OpenGL ES圖形接口進(jìn)行程序設(shè)計(jì)。 (2)通過(guò)對(duì)現(xiàn)有的計(jì)算機(jī)圖形學(xué)中的三維幾何建模技術(shù)的學(xué)習(xí)和研究，結(jié)合嵌入式系統(tǒng)的特點(diǎn)，設(shè)計(jì)出適合車(chē)削和銑削兩種常見(jiàn)數(shù)控加工方式的圖形仿真算法。 (3)設(shè)計(jì)出仿真模塊的具體工作流程，實(shí)現(xiàn)了仿真功能，并將其應(yīng)用于X公司的XX經(jīng)濟(jì)型數(shù)控系統(tǒng)上，通過(guò)實(shí)際應(yīng)用和測(cè)試，對(duì)本文的設(shè)計(jì)方案進(jìn)行了驗(yàn)證。
[Abstract]:NC machining is one of the important links in CAD/CAM technology. With the continuous complication of machining parts in modern manufacturing industry and the continuous improvement of NC technology itself, the complexity of NC machining programs is constantly increasing. Therefore, it is more and more necessary to verify the correctness of NC machining code. Three-dimensional graphics simulation of NC machining is one of the effective methods to verify the correctness of NC machining program, which uses three-dimensional graphics to simulate the actual machining process. It is of great practical significance to shorten the R & D cycle and reduce the R & D cost of industrial products. The three-dimensional graphics simulation system designed and implemented in this paper can not only verify the correctness of NC machining program, but also be used in teaching and training, so as to reduce the cost of learning NC machining. The three-dimensional graphics simulation is realized on the economical embedded numerical control system, which can enhance the function and expand the use of the product. It can effectively improve the competitiveness of the product in the market, and has high economic value. On the basis of analyzing and studying all kinds of numerical control graphic simulation technology, the author optimizes the characteristics of embedded system, and then designs and realizes a kind of high efficiency graphic simulation algorithm. And apply it to the actual product. The main work of this paper is embodied in the following aspects: (1) on the basis of the existing research results, the scheme is designed according to the specific functional requirements of the graphic simulation system. Based on the ARM Cortex-A8 microprocessor as the core computing platform, and on the embedded WindowsCE6.0 system, the OpenGL ES graphic interface is used to design the program. (2) through the study and research of the three-dimensional geometry modeling technology in computer graphics, combined with the characteristics of embedded system, the graphic simulation algorithm suitable for two kinds of common NC machining methods, turning and milling, is designed. (3) the concrete work flow of the simulation module is designed, and the simulation function is realized. It is applied to the XX economical numerical control system of X Company, and the design scheme of this paper is verified by practical application and test.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TP368.1;TP391.41

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