基于DNC的數(shù)控裝備重構技術研究與應用
發(fā)布時間:2018-01-20 15:09
本文關鍵詞: 可重構制造系統(tǒng) 復合加工機床 有限元 DNC 出處:《沈陽航空航天大學》2013年碩士論文 論文類型:學位論文
【摘要】:隨著科學技術的發(fā)展,制造業(yè)客戶需求產(chǎn)品向多品種、變批量方向發(fā)展,產(chǎn)品結構趨于復雜化。而目前數(shù)字化制造車間主要以單件小批量的生產(chǎn)組織模式為主,對市場響應力差,車間信息控制系統(tǒng)薄弱,信息交互困難,不能完成多品種、變批量的生產(chǎn)需求。為了改變數(shù)字化制造車間現(xiàn)狀,基于DNC網(wǎng)絡搭建了可重構的開放式信息控制平臺,應用可重構制造技術,對車間生產(chǎn)零件進行合理的工藝流程規(guī)劃,,解決數(shù)控加工設備加工能力不足等問題。 本文首先對生產(chǎn)制造模式的發(fā)展進行了分析,闡述了可重構制造系統(tǒng)的理論基礎及其發(fā)展過程,介紹了可重構制造系統(tǒng)的特點及組成,論述了可重構制造系統(tǒng)在先進制造模式中的競爭優(yōu)勢和關鍵技術。 其次,進行了數(shù)字化制造車間制造流程規(guī)劃的研究。介紹了零件族的劃分方法,并對零件族加工信息描述方法進行闡述,分析了數(shù)字化制造車間的組織運行情況,提出了數(shù)字化制造車間對生產(chǎn)流程重構、信息控制重構及物流系統(tǒng)重構的需求。 最后,在工藝規(guī)劃需求下,進行了復合機床的改造,實現(xiàn)加工工件一次性裝夾定位,完成工件由毛胚到成品的加工,提高了加工精度及生產(chǎn)效率,縮短生產(chǎn)周期,增強了車間數(shù)控設備的可重構性。應用ANSYS對鉆銑工裝主要零部件進行動靜力學有限元分析,驗證箱體及鉆銑主軸的動靜力學特性。分析了數(shù)字化制造車間對可重構信息控制系統(tǒng)的需求,構建了基于DNC的模塊化可重構信息控制平臺。
[Abstract]:With the development of science and technology, manufacturing customer demand products to a variety of varieties, changing the direction of development, product structure tends to become more complicated. But at present, the digital manufacturing workshop is mainly single-piece small batch production organization mode. Poor response to the market, weak workshop information control system, difficult information exchange, can not meet the multi-species, variable batch production requirements. In order to change the status quo of digital manufacturing workshop. Based on DNC network, a reconfigurable open information control platform is built, and the reasonable process flow planning of workshop parts is carried out by using reconfigurable manufacturing technology. Solve the problem of insufficient machining capacity of NC machining equipment. In this paper, the development of manufacturing mode is analyzed, the theoretical basis and development process of reconfigurable manufacturing system are expounded, and the characteristics and composition of reconfigurable manufacturing system are introduced. The competitive advantage and key technology of reconfigurable manufacturing system in advanced manufacturing mode are discussed. Secondly, the manufacturing process planning of digital manufacturing workshop is studied. The method of dividing parts family is introduced, and the description method of part family processing information is expounded. This paper analyzes the organization and operation of the digital manufacturing workshop, and puts forward the requirements of the digital manufacturing workshop for the reconfiguration of the production process, the reconfiguration of information control and the reconfiguration of the logistics system. Finally, under the demand of process planning, the composite machine tool is reformed to realize the one-off clamping positioning of the machining workpiece, and to complete the processing of the workpiece from the wool embryo to the finished product, which improves the machining accuracy and production efficiency. The production cycle is shortened and the reconfiguration of numerical control equipment in workshop is enhanced. The dynamic and dynamic finite element analysis of the main parts of drilling and milling is carried out by using ANSYS. The dynamic and dynamic characteristics of the box and the spindle are verified. The requirements of the digital manufacturing workshop for the reconfigurable information control system are analyzed, and the modular reconfigurable information control platform based on DNC is constructed.
【學位授予單位】:沈陽航空航天大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:TG659;TH186
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