联合动力发动机装配线平衡优化
随着快速多变的市场需求及企业的发展，在流水线生产的模式下，如何提高生产线的整体效率，减少工序间的在制品，以及追求同步化生产越来越受到重视，企业生产中通常用平衡率这一量化的指标来评价一条流水线平衡性的高低.它在某种程度上决定着企业设备的利用率，并限制着生产线生产能力的提高。
论文通过对装配生产线平衡的研究，结合自身企业产品的特点，对现有生产进行了改善，说明了现有工业工程技术在生产线平衡改善中的作用。首先，本文叙述了生产线平衡理论及评价方式，及影响线平衡的要素，同时根据工业工程基础理论定义了改善生产线平衡的方式。对于本文所讨论的机种K10机型，针对其线平衡率不高的问题，通过分析现状，找出了问题所在：作业工序安排不当；机械化程度不高；现场规划不合理。然后根据生产线平衡的步骤及方法，按照工序节拍均衡的原则，通过对工业工程理论的运用，调整了工序内容，使各工序节拍趋于一致，且精减了部分站位，节省了人力，设备成本，并使生产能力得到了提高；通过对5S理论的研究和运用，展示了生产现场的具体改善工作和取得的实际成效，为企业实施5S管理提供借鉴。
关键词：精益生产，生产线平衡，5S，工序节拍，现场管理
Balance Optimization of Engine Assembly Line in Wuhu yuchai
Abstract
To meet the variable requirement of the market, it becomes more and more important to improve the efficiency of production line, decrease the storage of half-goods and attain equalization for the pipelines. It is an popular index for the company to make the assessment on a pipeline, and it is also affect the line capability.
Through studying on the theory of the assembly line balance and combining the characteristic of the real production line, we find it is helpful to practice the industry engineering technology. First, this paper has recounted the theory of the pipeline balance and of how to make evaluation for it. Then by the theory, the paper defined the detail methods to improve the line balance. For the model of K10 which is one of the most important products in our company, we found some problems on the pipeline by analyzing the situation：improper arrangement for the operation; low automation; unreasonable programming in workplace.
By steps and methods of assembly line balance, the paper practice following principle of IE and man-machine the method, we adjusted operation content and make the operation cycle reach unanimity. During the improvement, we also made the cost down for some stations, operators, machines and increased the production capacity of line greatly. The paper also practice the “5S” theory, show the detail solutions and results, so corporation can learn some from the paper.
Key words: lean production, production line balance,5S theory, operation cycle, spot management
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