BQ公司总装底盘转接流程改进研究

发布时间：2018-04-08 22:02

本文选题：工业工程　切入点：精益生产　出处：《北京工业大学》2016年硕士论文

【摘要】：近年来,随着国家政策的扶持和经济形势的发展,国内外汽车企业都得到了长足的发展,BQ公司产销也得到了大幅度的提升,下属的豪华车品牌月销量更是一举超过宝马汽车,实现历史性的飞跃。BQ公司良好的汽车品质与声誉也大大的拉动了市场对于BQ公司汽车产量的需求,因此BQ公司必须不断扩大产能,来满足客户的需求。为了增加产能,提高节拍,本文对BQ公司总装车间现有生产线的工位进行了科学的分析,并确定了制约生产节拍的瓶颈工位,即底盘三线转接工位。首先,运用精益生产中典型的5W1H方法来对现在的底盘转接流程进行分析,确定问题的所在;其次,使用ECRS原则对现有流程的各个环节进行剖析,依据现场的实际数据,对机械结构和电气控制方面都制定了详细的优化方案;最后,对制定的优化方案进行可行性分析,风险分析,最大程度的将风险发生的可能性降到最低,并针对一些风险制定备选方案。在优化方案实施过程中,严格按照六西格玛的要求来对质量进行控制,从而有力的保证了优化方案的实施效果,并将持续改进理念推行下去,以巩固优化的成果。通过将底盘三线的接车方式,由原来的等待接车到主动去接车,由原来的板链输送更改为现在的移行机快速传送,方案经过实施以后数据的分析得知,生产节拍从30JPH(Job Per Hour)提高到了40JPH,总装车间每天成品车下线数从480辆提高到640辆。通过优化底盘转接这个瓶颈工位的流程,大大的减少了单车生产时间,降低了单车成本,提高了生产效率。精益生产在实际生产生活中对提高生产节拍、分析瓶颈工位等线平衡方面,借助于其强大的分析问题、解决问题的工具和方法具有很大的优势,而六西格玛在质量控制上则达到了精益生产理论所无法逾越的高度,因此,在此次流程改进中,将精益生产理论用来提高节拍,六西格玛理论用来控制生产质量,把两者有机结合起来,才使得本次流程改进取得良好效果。
[Abstract]:In recent years, with the support of national policies and the development of the economic situation, domestic and foreign auto enterprises have achieved considerable development, and the production and sales of QBQ have also been greatly improved. The monthly sales of luxury car brands under them have surpassed BMW's by one stroke.To achieve the historic leap, the good car quality and reputation of the company has greatly stimulated the demand of the market for the car output of the company. Therefore, the company must expand the production capacity to meet the needs of the customers.In order to increase the production capacity and increase the rhythm, this paper makes a scientific analysis of the work station of the existing production line in the general assembly workshop of Bq Company, and determines the bottleneck position that restricts the production rhythm, that is, the three-line transfer position of the chassis.Firstly, the typical 5W1H method in lean production is used to analyze the current chassis transfer process and determine the problem. Secondly, the ECRS principle is used to analyze each link of the existing process, according to the actual data on the spot.The detailed optimization scheme for mechanical structure and electrical control is made. Finally, the feasibility analysis and risk analysis are carried out to minimize the possibility of risk occurrence.And develop options for some risks.In the process of implementing the optimization scheme, the quality is strictly controlled in accordance with the requirements of six Sigma, which ensures the implementation effect of the optimization scheme, and carries out the idea of continuous improvement in order to consolidate the results of optimization.From the original waiting to the initiative to pick up the car, from the original plate chain transportation to the current quick transfer machine, after the implementation of the scheme after the analysis of the data know,The production beat rose from 30JPH(Job Per Hourto 40 JPHs, and the number of finished cars per day in the assembly plant rose from 480 to 640.By optimizing the process of connecting the chassis to the bottleneck station, the cycle production time is greatly reduced, the bicycle cost is reduced, and the production efficiency is improved.Lean production has a great advantage in improving production rhythm and analyzing bottleneck work line balance in actual production life, with the help of its powerful analysis of problems, tools and methods to solve problems.However, six Sigma has reached an insurmountable height in terms of quality control. Therefore, in this process improvement, lean production theory is used to improve the rhythm, and six Sigma theory is used to control production quality.Combine the two organically to make this process improve to achieve good results.
【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U468.2

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