【摘要】："中國制造2025"戰(zhàn)略的提出,使得農(nóng)業(yè)機(jī)械裝備行業(yè)迎來了政策利好。作為農(nóng)業(yè)大國,農(nóng)機(jī)裝備的普遍應(yīng)用是農(nóng)業(yè)發(fā)展的重要保障。LY公司是一家新興農(nóng)業(yè)機(jī)械裝備制造企業(yè),其產(chǎn)品聯(lián)合收割機(jī)用途廣泛、質(zhì)量穩(wěn)定。但隨著企業(yè)自身的發(fā)展和農(nóng)機(jī)裝備市場的升溫,現(xiàn)行的生產(chǎn)裝配模式已經(jīng)不能滿足未來訂單的需求,該公司生產(chǎn)裝配線方面的矛盾較為突出,各工位的工作量和工作時(shí)間有較大差異,空閑時(shí)間較長、生產(chǎn)環(huán)節(jié)銜接配合不合理,總體裝配線平衡率較低。因此,進(jìn)行生產(chǎn)線平衡的改善是其現(xiàn)階段發(fā)展的主要目標(biāo)。本文將運(yùn)用現(xiàn)有的裝配線平衡改善理論和工業(yè)工程的基本方法,對(duì)LY公司聯(lián)合收割機(jī)裝配線進(jìn)行優(yōu)化,使其達(dá)到較高的裝配平衡率。本文首先介紹了工業(yè)工程方法在改善裝配線平衡方面的可行性,概述了國內(nèi)外對(duì)裝配線平衡改善研究的方法和成果,確定了本文的研究內(nèi)容、研究方法與技術(shù)框架。在此基礎(chǔ)上介紹了裝配線平衡問題研究中涉及的基礎(chǔ)理論和改善前后的評(píng)價(jià)指標(biāo)。隨后著重介紹了本文將要運(yùn)用的程序分析法、動(dòng)作分析法、作業(yè)測定法,為改善裝配線平衡的實(shí)證研究打下了的理論基礎(chǔ)。第三章是對(duì)LY公司的現(xiàn)狀分析,研究了產(chǎn)品裝配流程中存在的問題,包括脫粒機(jī)架總成裝配時(shí)間長,不能及時(shí)供應(yīng)裝配線生產(chǎn);各工位生產(chǎn)節(jié)拍差距較大,空閑時(shí)間過長,工序安排不合理;物料領(lǐng)用與倉儲(chǔ)不合理等問題。第四章著重對(duì)存在的問題進(jìn)行研究與分析。首先將方法研究與作業(yè)測定技術(shù)相結(jié)合,減少了操作流程,精簡了不合理裝配動(dòng)作,改進(jìn)了裝配模式;其次使用仿真優(yōu)化軟件proplanner對(duì)作業(yè)流程進(jìn)行了重排,對(duì)工位進(jìn)行合并;最后通過制定物料標(biāo)簽卡、改變作業(yè)場地倉庫布置,優(yōu)化了物料管理和生產(chǎn)物流的問題。文章最后運(yùn)用裝配平衡率、空閑時(shí)間、指數(shù)平滑和平衡延遲等指標(biāo)對(duì)平衡改善后裝配線進(jìn)行評(píng)價(jià)。并對(duì)裝配現(xiàn)場倉儲(chǔ)布局優(yōu)化前后做了數(shù)據(jù)分析對(duì)比,從上述兩方面分析證明了此次研究的意義與成果。文章第五章對(duì)本次研究進(jìn)行了總結(jié),并提出了相應(yīng)的意見與建議。
[Abstract]:"made in China 2025" strategy, the agricultural machinery and equipment industry ushered in a good policy. As a large agricultural country, the widespread application of agricultural machinery and equipment is an important guarantee for agricultural development. LY Company is a new manufacturing enterprise of agricultural machinery and equipment, and its product combine is widely used and stable in quality. However, with the development of the enterprise itself and the heating up of the agricultural machinery equipment market, the current production and assembly mode can no longer meet the demand of future orders, and the contradiction in the production and assembly line of the company is more prominent. The workload and working time of each work station are quite different, the idle time is longer, the production link is unreasonably connected with each other, and the overall balance rate of assembly line is low. Therefore, the improvement of production line balance is the main goal of its current development. Based on the existing theory of assembly line balance improvement and the basic methods of industrial engineering, this paper optimizes the assembly line of combine Harvester of LY Company and makes it achieve higher assembly balance rate. This paper first introduces the feasibility of industrial engineering method in improving assembly line balance, summarizes the research methods and achievements of assembly line balance improvement at home and abroad, and determines the research contents, research methods and technical framework of this paper. On this basis, the basic theory and evaluation index before and after improvement of assembly line balance are introduced. Then it introduces the program analysis method, action analysis method and job determination method which will be used in this paper, which lays a theoretical foundation for improving the balance of assembly line. The third chapter is the analysis of the current situation of LY company, studied the problems existing in the product assembly process, including the long assembly time of the thresher rack assembly, can not supply the assembly line production in time; The production rhythm of each work station is different, the idle time is too long, the working procedure arrangement is unreasonable, the material receiving and storing are unreasonable and so on. Chapter four focuses on the research and analysis of the existing problems. Firstly, the method research is combined with the job measurement technology, the operation flow is reduced, the unreasonable assembly action is simplified, and the assembly mode is improved. Secondly, the simulation optimization software proplanner is used to rearrange the work flow and merge the work stations. Finally, the material management and production logistics are optimized by making the material label card and changing the layout of the warehouse. Finally, the assembly line after the balance improvement is evaluated by using the assembly balance ratio, idle time, exponential smoothing and balance delay. The data analysis and comparison before and after the optimization of the assembly site storage layout prove the significance and achievement of this research from the above two aspects. The fifth chapter summarizes the research and puts forward some suggestions.
【學(xué)位授予單位】：南京農(nóng)業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：S225

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