發(fā)布時間：2018-11-23 12:09

【摘要】：“高檔數(shù)控機(jī)床與基礎(chǔ)制造設(shè)備”是我國裝備制造行業(yè)的典范,同時也是《國家中長期科學(xué)和技術(shù)發(fā)展規(guī)劃綱要(2006-2020)》的16個重大專項(xiàng)之一;隨著國家經(jīng)濟(jì)的快速發(fā)展及制造業(yè)技術(shù)水平的不斷提高,精密復(fù)合式鏜銑加工中心作為機(jī)械制造生產(chǎn)中的大型基礎(chǔ)設(shè)備,在航天、航空、機(jī)車、船舶、電力、軍工等領(lǐng)域的產(chǎn)品制造中有著重要地位。數(shù)控加工技術(shù)發(fā)展程度代表一個國家現(xiàn)代制造業(yè)的基礎(chǔ)技術(shù)水平,其發(fā)展水平和規(guī)模代表著一個國家的工業(yè)實(shí)力和制造技術(shù)水平高低。隨著美國工業(yè)互聯(lián)網(wǎng)和德國工業(yè)4.0的概念的提出,數(shù)控加工技術(shù)在智能制造領(lǐng)域有著舉足輕重的地位。復(fù)雜箱體類零件是動力總成部件的基礎(chǔ)零件,它是集機(jī)械部件中的軸套、齒輪等零件于一體,使整個機(jī)構(gòu)按照既定的運(yùn)動關(guān)系協(xié)調(diào)傳遞動力及運(yùn)動,箱體零件的質(zhì)量會直接反應(yīng)到整個機(jī)器或部件的精度、性能和壽命上。對于復(fù)合式鏜銑加工中心這種復(fù)雜、高速、精密的現(xiàn)代數(shù)控機(jī)床及高柔性、超高速、超精密、高智能化的機(jī)床而言,其主要產(chǎn)品即箱體類零件數(shù)控加工關(guān)鍵技術(shù)的研究,關(guān)系到設(shè)備的工作性能,保證零件各項(xiàng)精度一致性好,同時節(jié)省費(fèi)用,縮短生產(chǎn)周期。本文將基于上述內(nèi)容,基于TX1600G精密復(fù)合式鏜銑加工中心,對其對于復(fù)雜箱體數(shù)控加工若干關(guān)鍵技術(shù)及理論展開論述:(1)通過對鏜銑加工中心及數(shù)控后置處理的背景及意義展開綜合論述、對數(shù)控加工箱體設(shè)備和后置處理國內(nèi)外發(fā)展現(xiàn)狀的深入研究。經(jīng)過相關(guān)操作生成滿足加工要求的數(shù)控加工程序至關(guān)重要,結(jié)合數(shù)控系統(tǒng)和鏜銑加工中心的機(jī)床結(jié)構(gòu)特性文件與數(shù)控系統(tǒng)特性文件開發(fā)與刀具軌跡對應(yīng)的后置處理至關(guān)重要。(2)基于獨(dú)立自主開發(fā)的TX1600G精密復(fù)合式鏜銑加工中心的結(jié)構(gòu)特點(diǎn)與技術(shù)參數(shù),結(jié)合數(shù)字找正系統(tǒng)的平臺。對復(fù)雜箱體類零件原點(diǎn)找正、孔和孔系及側(cè)面進(jìn)行加工,采用了幾何分析與優(yōu)化算法,探索了側(cè)面與原點(diǎn)加工的找正方法。根據(jù)箱體類零件原點(diǎn)與側(cè)面加工坐標(biāo)系,對零件特征點(diǎn)進(jìn)行選取、測量。結(jié)合內(nèi)點(diǎn)懲罰算法分別提出了針對側(cè)面與原點(diǎn)加工找正的算法。結(jié)合孔與孔系特點(diǎn)確定箱體類零件孔與孔系加工的最優(yōu)化加工路徑。(3)以復(fù)雜箱體類零件為加工對象,對其進(jìn)行結(jié)構(gòu)分析工藝路線擬定與規(guī)劃并基于UG/CAM進(jìn)行建模通過自動編程生成數(shù)控程序。分析鏜銑加工中心的機(jī)床數(shù)據(jù)文件和所配控制系統(tǒng)數(shù)據(jù)文件各項(xiàng)信息,主要利用UG/Post-Builder開發(fā)TX1600G鏜銑加工中心開發(fā)專用后置處理系統(tǒng),建立了 CAM系統(tǒng)與數(shù)控加工仿真、上機(jī)加工的信息橋梁。(4)基于Vericut與UGNX構(gòu)建了 TX1600G精密復(fù)合式鏜銑加工中心機(jī)床運(yùn)動與刀具軌跡仿真模型,進(jìn)行控制系統(tǒng)配置,進(jìn)行復(fù)雜箱體的數(shù)控加工與仿真上機(jī)。
[Abstract]:"High-grade numerical control machine tools and basic manufacturing equipment" is the model of China's equipment manufacturing industry, and is also one of the 16 major projects in the outline of the National medium and long term Science and Technology Development Program (2006-2020). With the rapid development of national economy and the continuous improvement of manufacturing technology, the precision compound boring and milling machining center, as a large basic equipment in mechanical manufacturing, is used in aerospace, aviation, locomotives, ships, electric power, Military industry and other fields of product manufacturing has an important position. The development level of NC machining technology represents the basic technological level of a country's modern manufacturing industry, and its development level and scale represent the industrial strength and manufacturing technology level of a country. With the development of the concept of American Industrial Internet and German Industry 4.0, NC machining technology plays an important role in the field of intelligent manufacturing. The complicated box part is the basic part of the power assembly. It integrates the shaft sleeve, gear and other parts in the mechanical parts, so that the whole mechanism can transfer the power and motion in accordance with the established motion relationship. The quality of box parts is directly related to the accuracy, performance and life of the whole machine or component. For the complex, high-speed and precise modern NC machine tool and the machine tool with high flexibility, super high speed, super precision and high intelligence, the main product of the complex boring and milling machining center is the key technology of NC machining of box parts. It relates to the working performance of the equipment, ensures the accuracy consistency of the parts, saves the cost and shortens the production cycle. This paper will be based on the above content, based on TX1600G precision compound boring and milling machining center, Some key technologies and theories of NC machining for complex box are discussed in this paper. (1) the background and significance of boring and milling machining center and NC post processing are discussed synthetically. The development status of NC machining box equipment and post-processing at home and abroad is deeply studied. It is important to generate NC machining programs that meet the requirements of machining through related operations. It is very important to combine the structure characteristic file of NC system with the characteristic file of NC system and the post processing of tool path. (2) the TX1600G precision compound boring and milling based on independent development is very important. The structural characteristics and technical parameters of the machining center, Combined with digital alignment system platform. The geometric analysis and optimization algorithm are used to process the orifice, hole and hole system and side of complex box parts, and the method of alignment of side and origin is explored. According to the box parts origin and side machining coordinate system, the feature points of the parts are selected and measured. Combined with the interior point penalty algorithm, an algorithm for correction of side and origin processing is proposed. According to the characteristics of hole and hole system, the optimum machining path of box parts is determined. (3) taking complex box parts as machining object, The process route of structure analysis is drawn up and the model is built based on UG/CAM. The NC program is generated by automatic programming. This paper analyzes the data file of machine tool and the data file of the control system in the boring and milling machining center. It mainly uses UG/Post-Builder to develop the special post processing system of TX1600G boring and milling machining center, and establishes the CAM system and NC machining simulation. (4) based on Vericut and UGNX, the simulation model of machine tool movement and tool path of TX1600G precision compound boring and milling machining center is constructed, and the control system is configured, and the NC machining and simulation of complex box are carried out.
【學(xué)位授予單位】：沈陽理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TG659

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