【摘要】：目前,企業(yè)生產(chǎn)經(jīng)營(yíng)的主要目標(biāo)為低投入獲得高產(chǎn)出,最大限度地降低生產(chǎn)中所占用的資源及企業(yè)運(yùn)營(yíng)成本。車間生產(chǎn)作為制造企業(yè)的中心環(huán)節(jié),對(duì)車間生產(chǎn)進(jìn)行優(yōu)化就能提高企業(yè)的生產(chǎn)效率。某企業(yè)正處在重要的戰(zhàn)略轉(zhuǎn)型之際,迫在眉睫的問(wèn)題是如何快速生產(chǎn)出高品質(zhì)的電機(jī)產(chǎn)品,合理安排制造生產(chǎn)線,從而確保生產(chǎn)順暢。本文選擇該企業(yè)中具有代表性的電機(jī)零件——磁極鐵芯生產(chǎn)線作為研究對(duì)象,采用定量和定性相結(jié)合的系統(tǒng)分析方法,并用車間數(shù)據(jù)收集法和技術(shù)分析法對(duì)生產(chǎn)線的工序和參數(shù)進(jìn)行科學(xué)合理采集。在模型分析中,選用Petri網(wǎng)建立磁極鐵芯生產(chǎn)線模型,通過(guò)觀察Petri網(wǎng)模型可清晰直觀得到生產(chǎn)線的整體工作過(guò)程。文章重點(diǎn)在于通過(guò)Flexsim軟件對(duì)模型進(jìn)行仿真優(yōu)化,選擇生產(chǎn)線暫存區(qū)的堆積狀態(tài)和各工序的工作狀態(tài)進(jìn)行分析,找出了鉆銑加工工序和線切割加工工序?yàn)樵摯艠O鐵芯生產(chǎn)線的瓶頸工序。從生產(chǎn)流程優(yōu)化和生產(chǎn)能力平衡兩個(gè)方面,依據(jù)工業(yè)工程中ECRSI原則,設(shè)計(jì)優(yōu)化方案,再次使用Flexsim仿真并對(duì)結(jié)果進(jìn)行分析。對(duì)優(yōu)化前后生產(chǎn)線的相關(guān)數(shù)據(jù)進(jìn)行對(duì)比研究,選擇以下優(yōu)化方案:增加2臺(tái)龍門銑和1臺(tái)線切割機(jī)床,使生產(chǎn)線平滑性指數(shù)從570.29減少到135.93,生產(chǎn)線平衡率從28.13%提高到60.4%。優(yōu)化結(jié)果表明,優(yōu)化后的生產(chǎn)線縮短了瓶頸時(shí)間、提高了生產(chǎn)效率。通過(guò)選用Petri網(wǎng)對(duì)生產(chǎn)線建模,直觀呈現(xiàn)出系統(tǒng)結(jié)構(gòu),利于研究生產(chǎn)線內(nèi)部的性質(zhì),而Flexsim更進(jìn)一步對(duì)生產(chǎn)線仿真優(yōu)化,以便提供可靠的依據(jù),為本企業(yè)車間生產(chǎn)優(yōu)化工作提供了借鑒,所使用的相關(guān)研究方法和結(jié)論對(duì)其他相類似的機(jī)械加工生產(chǎn)線也具有一定的借鑒和參考價(jià)值。
[Abstract]:At present, the main goal of enterprise production and management is to obtain high output with low input, and to reduce the resources occupied in production and the operating cost of the enterprise to the maximum extent. Workshop production as the central link of manufacturing enterprises, the optimization of workshop production can improve the production efficiency of enterprises. An enterprise is in an important strategic transition, the urgent problem is how to quickly produce high quality motor products, reasonable arrangement of manufacturing production lines, so as to ensure the smooth production. In this paper, the representative motor parts-magnetic pole core production line in this enterprise is chosen as the research object, and the system analysis method combining quantitative and qualitative analysis is adopted. The process and parameters of the production line are collected scientifically and reasonably by the method of data collection and technical analysis. In the analysis of the model, the model of magnetic pole core production line is established by using Petri net, and the whole working process of the production line can be clearly and intuitively obtained by observing the model of Petri net. The emphasis of this paper is to optimize the model by Flexsim software, select the stacking state of the temporary storage area of the production line and analyze the working state of each working procedure. It is found that drilling and milling process and wire cutting process are the bottleneck of the magnetic core production line. According to the principle of ECRSI in industrial engineering, the optimization scheme is designed from two aspects of production process optimization and production capacity balance. Flexsim simulation is used again and the results are analyzed. The relative data of the production line before and after optimization are compared and studied, and the following optimization schemes are selected: adding 2 gantry milling machines and 1 wire cutting machine tool to reduce the smoothness index of the production line from 570.29 to 135.93, The balance rate of production line increased from 28.13% to 60.4%. The optimization results show that the optimized production line shortens the bottleneck time and improves the production efficiency. By using Petri net to model the production line, the system structure is presented intuitively, which is helpful to study the properties of the production line, while Flexsim further optimizes the simulation of the production line in order to provide a reliable basis. It provides a reference for the optimization of workshop production in this enterprise, and the relevant research methods and conclusions used in this paper also have some reference value for other similar machining production lines.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM305.1

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