【摘要】：我公司的混凝土攪拌站每年的銷量大概在2500臺(tái)套左右,其中攪拌主機(jī)作為攪拌站的核心部件,其生產(chǎn)能力和質(zhì)量的管控一直是把控的核心。作為批量生產(chǎn)的一級(jí)部件,隨著生產(chǎn)規(guī)模的逐步擴(kuò)大,攪拌主機(jī)裝配線也在進(jìn)行不斷的改善,以滿足生產(chǎn)的需求,從最原始的單臺(tái)套定點(diǎn)裝配,到軌道式人工流動(dòng)裝配線,再到自動(dòng)化的裝配流水線,然而因?yàn)槿藛T流動(dòng)性大、頻繁的變更生產(chǎn)制造地點(diǎn)以及裝配線的設(shè)計(jì)、施工及物流方面存在的問題或缺陷,如下所述：1、生產(chǎn)線傳輸設(shè)備落后——機(jī)2、生產(chǎn)布局不合理——環(huán)3、物流布局不合理,未實(shí)現(xiàn)配送——料4、裝配方法落后,工藝文件不完善——法5、五、人員素質(zhì)不高,管理水平有待提升——人6、檢驗(yàn)把關(guān)不嚴(yán),不良品流入裝配線,檢驗(yàn)方法有待改善——測(cè)因?yàn)榇嬖谝陨蠋讉�(gè)方面的問題,以致目前我們的攪拌主機(jī)裝配線零部件的合格率不高、檢驗(yàn)不過關(guān)、停工待料的現(xiàn)象經(jīng)常出現(xiàn),延誤了后續(xù)工序的加工,嚴(yán)重影響了產(chǎn)品質(zhì)量和生產(chǎn)效率。在生產(chǎn)任務(wù)緊時(shí),員工必須加班加點(diǎn)才能滿足交貨需求,造成員工和設(shè)備負(fù)荷過大；生產(chǎn)任務(wù)少時(shí),員工工作量過小,經(jīng)濟(jì)收入也隨之減少,對(duì)員工工作積極性造成影響；另外,生產(chǎn)現(xiàn)場(chǎng)的布置不合理,工作時(shí)間過長(zhǎng)等因素使員工容易疲勞,增加了不規(guī)范操作和安全事故的可能性。場(chǎng)地布置不合理、工裝設(shè)備先進(jìn)性不夠、研發(fā)更新過程較慢等原因,導(dǎo)致各生產(chǎn)環(huán)節(jié)不協(xié)調(diào),工序間產(chǎn)生了大量的庫(kù)存,從而導(dǎo)致了流水線瓶頸的出現(xiàn),產(chǎn)生了不必要的動(dòng)作和可避免的等待。因此,提升攪拌主機(jī)裝配線的工作效率,成為了我公司縮短產(chǎn)品生產(chǎn)周期的重中之重。本課題通過對(duì)攪拌主機(jī)裝配流水線建設(shè)的一些方法、手段和措施的研究,按照精益思想的原則,通過引進(jìn)新設(shè)備、新方法,消除落后工藝等,并對(duì)各工位進(jìn)行工序能力平衡分析,進(jìn)行作業(yè)再分配,從而實(shí)現(xiàn)了連續(xù)流作業(yè),該種作業(yè)方式嚴(yán)格控制了生產(chǎn)的節(jié)拍時(shí)間,提高了生產(chǎn)線的產(chǎn)能,提高了生產(chǎn)效率。通過對(duì)裝配流水線進(jìn)行改進(jìn),實(shí)現(xiàn)了攪拌主機(jī)裝配線的連續(xù)流,降低了員工的勞動(dòng)強(qiáng)度,提升了產(chǎn)品質(zhì)量,縮短了產(chǎn)品的生產(chǎn)周期,提高了生產(chǎn)線的產(chǎn)能,為公司的產(chǎn)品保供提供了有力的保障。
[Abstract]:The annual sales of our concrete mixing plant is about 2500 sets, in which the mixing machine is the core component of the mixing plant, and its production capacity and quality control have been the core of the control. As a first-grade component in batch production, with the gradual expansion of production scale, the assembly line of the mixing engine is also continuously improved to meet the needs of production, from the most primitive single-set fixed-point assembly to the track type manual flow assembly line. Then to the automated assembly line, however, due to the high mobility of personnel, frequent changes of production and manufacturing locations, as well as assembly line design, construction and logistics problems or defects, as follows: 1, Production line transmission equipment backward-machine 2, production layout unreasonable-ring 3, logistics layout unreasonable, unrealized distribution-material 4, assembly method backward, process file imperfect-method 5, 5, personnel quality is not high, The level of management needs to be improved-people 6, inspection controls are lax, bad goods flow into assembly lines, inspection methods need to be improved-because there are problems in the above aspects, As a result, the qualified rate of the parts and components of the assembly line of our mixing engine is not high, the inspection is not up to standard, and the phenomenon of stopping work and waiting for material often appears, which delays the processing of the subsequent working procedure and seriously affects the product quality and production efficiency. When the production task is tight, the staff must work overtime to meet the delivery demand, resulting in excessive workload of the staff and equipment; when the production task is small, the workload of the staff is too small, and the economic income will be reduced, which will have an impact on the enthusiasm of the staff. In addition, the unreasonable layout of the production site and long working hours make the staff easily tired and increase the possibility of non-standard operation and safety accidents. The unreasonable layout of the site, the advanced nature of the equipment, the slow process of R & D renewal, and so on, lead to the incoordination of the various production links and the production of a large amount of inventory among the processes, thus leading to the emergence of the bottleneck of the assembly line. Unnecessary actions and avoidable waiting are generated. Therefore, improving the efficiency of the assembly line of agitator has become the most important thing for our company to shorten the production cycle. Through the research of some methods, means and measures of assembly line construction of agitating engine, according to the principle of lean thought, by introducing new equipment and new method, eliminating the backward technology, etc. The continuous flow operation is realized by analyzing the process ability balance and redistributing the work, which strictly controls the production rhythm time, improves the production line productivity and improves the production efficiency. Through the improvement of assembly line, the continuous flow of assembly line of mixing engine is realized, the labor intensity of staff is reduced, the quality of product is improved, the production cycle of product is shortened, and the production capacity of production line is improved. For the company's products to provide a strong guarantee.
【學(xué)位授予單位】：福州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU642

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