【摘要】：生產(chǎn)線具有連貫性好、生產(chǎn)效率高等特點(diǎn),吸引了越來(lái)越多制造企業(yè)的關(guān)注,在實(shí)際生產(chǎn)中具有廣泛應(yīng)用。緩沖區(qū)大小、質(zhì)量檢測(cè)策略、設(shè)備性能劣化等很多因素都會(huì)影響生產(chǎn)線的性能,本文依托“高檔數(shù)控機(jī)床與基礎(chǔ)制造裝備”國(guó)家科技重大專項(xiàng)課題“轎車變速箱齒輪加工自動(dòng)生產(chǎn)線”,以具有質(zhì)量檢測(cè)信息反饋的兩級(jí)串行生產(chǎn)線為研究對(duì)象,采用仿真實(shí)驗(yàn)方法,對(duì)生產(chǎn)線性能進(jìn)行分析研究,為改善和優(yōu)化齒輪生產(chǎn)線的設(shè)計(jì)提供實(shí)驗(yàn)和理論依據(jù)。首先,建立兩級(jí)串行生產(chǎn)線質(zhì)量檢測(cè)信息反饋模型,分析生產(chǎn)線中加工系統(tǒng)劣化過(guò)程,采用馬爾可夫隨機(jī)過(guò)程理論對(duì)加工系統(tǒng)劣化過(guò)程進(jìn)行建模。分析生產(chǎn)線加工過(guò)程質(zhì)量失效類型,研究加工系統(tǒng)狀態(tài)與質(zhì)量失效之間的對(duì)應(yīng)關(guān)系,采用質(zhì)量檢測(cè)數(shù)據(jù)擬合方法,對(duì)工件質(zhì)量失效特性進(jìn)行研究。其次,使用SimTalk語(yǔ)言編寫實(shí)驗(yàn)控制程序?qū)C(jī)床、檢測(cè)站、機(jī)床維護(hù)策略等進(jìn)行控制,確定生產(chǎn)線性能分析評(píng)價(jià)指標(biāo),分析加工時(shí)間的變動(dòng)性,基于eM-Plant軟件平臺(tái)建立兩級(jí)串行生產(chǎn)線仿真分析模型,設(shè)計(jì)仿真實(shí)驗(yàn)方案。然后,根據(jù)實(shí)驗(yàn)方案開展仿真實(shí)驗(yàn),分析加工時(shí)間變化、緩沖區(qū)容量變化以及系統(tǒng)加工性能劣化對(duì)兩級(jí)串行生產(chǎn)線性能的影響,在不同配置生產(chǎn)線中進(jìn)行對(duì)比分析,討論各種變化因素與生產(chǎn)線性能之間的聯(lián)系。最后,結(jié)合兩級(jí)串行齒輪自動(dòng)加工生產(chǎn)線,研究各種改進(jìn)方法對(duì)其性能的影響及其有效性。
[Abstract]:Because of its good consistency and high production efficiency, the production line has attracted more and more attention from manufacturing enterprises and has been widely used in practical production. Many factors, such as buffer size, quality detection strategy, equipment performance deterioration and so on, will affect the performance of the production line. This paper relies on "High-grade NC machine tools and basic manufacturing equipment", a national science and technology major project, "automatic production line for car gearbox gear processing", and takes the two-level serial production line with quality inspection information feedback as the research object. By using the method of simulation experiment, the performance of the production line is analyzed and studied, which provides the experimental and theoretical basis for improving and optimizing the design of the gear production line. Firstly, the information feedback model of two-stage serial production line quality detection is established, and the deterioration process of machining system in production line is analyzed. Markov stochastic process theory is used to model the deterioration process of machining system. The quality failure type of production line is analyzed and the corresponding relationship between machining system state and quality failure is studied. The quality failure characteristics of workpiece are studied by using the fitting method of quality test data. Secondly, we use SimTalk language to compile the experimental control program to control the machine tool, the test station, the machine tool maintenance strategy and so on, to determine the production line performance analysis evaluation index, to analyze the processing time variability, Based on eM-Plant software platform, the simulation analysis model of two-stage serial production line is established, and the simulation experiment scheme is designed. Then, according to the experimental scheme, the simulation experiment is carried out to analyze the effects of the change of processing time, the change of buffer capacity and the deterioration of system processing performance on the performance of two-stage serial production line. The relationship between various factors and the performance of the production line is discussed. Finally, combined with the two-stage serial gear automatic processing line, the effects of various improvement methods on its performance and its effectiveness are studied.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TH186

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本文編號(hào)：2133146