汽车装配中螺栓联接过程一致性的研究及应用

发布时间：2018-04-28 00:22

本文选题：螺栓联接 + 过程一致性　；参考：《吉林大学》2011年硕士论文

【摘要】：随着人民生活水平的提高,汽车制造业作为国民经济中的支柱产业,在市场运行中起到了越来越重要的作用。为了便于机器的制造、安装、运输、维修以及提高劳动生产率等,各种联接被人们广泛运行,其中应用最广泛的是螺栓联接。它的优点是可以获得很大的联接力,又便于装拆,可以通过标准化,实现了大批量生产,成本低而价格便宜,具有互换性。在汽车工业生产中,螺栓联接十分重要。螺栓拧紧应用于汽车行业的装配已经是一个普遍现象[1]。上汽通用五菱汽车股份有限公司前几年主要以生产微型商用车为主,近几年,根据市场客户的需要,开始进军乘用车市场。与商用车相比,乘用车的整个产品开发、零部件供应、整车制造、售后等整套体系要求更加严格。质量是企业的生命,而对于以组装为主的汽车组装车间,螺栓联接为最基础,最重要的质量过程控制点之一。通过系统性分析影响螺栓联接的因素,阐述如何采取过程控制手段,提出动、静态扭矩概念及特有的质量监控方法和计算方式,旨在为追求精益化生产的企业提供一套完善的制造过程一致性保证方案,是本文的主要研究内容。本文以上汽通用五菱汽车股份有限公司总装装配车间生产过程的螺栓联接质量控制作为研究对象,系统地提出了从产品开发,产品试制、产品制造过程中的一套管理体系。本文的主要内容是分析现有的螺栓联接制造过程一致性保证方案,找出企业质量控制流程中的不足,进而提出系统性的改进和创新方案。从“扭矩控制法”等螺栓联接理论着手,同时对拧紧工具、检测方法和统计计算等方面进行了详细的研究和分析,在此基础上提出了工具的选择以及不同拧紧工具的过程控制手段,提出了动、静态扭矩和过程工序能力的概念,开发出一套简易而实用的静态扭矩计算表式,为企业提供系统性的过程质量监控标准,规范螺栓联接质量过程控制方法,可以大幅度提高过程准确性和稳定可靠度,提升企业产品品质。本文的主要研究内容包括: 1、螺栓联接在汽车制造业中的应用现状 2、螺栓拧紧及检测方法 3、拧紧工具的应用 4、螺栓联接的过程一致性保证体系
[Abstract]:With the improvement of people's living standard, automobile manufacturing industry, as a pillar industry in national economy, plays a more and more important role in market operation. In order to facilitate the manufacture, installation, transportation, maintenance and improvement of labor productivity of machines, all kinds of connections are widely used, among which bolt connection is the most widely used. The advantages of it are that it can obtain great connection force, and it is easy to assemble and disassemble. It can realize mass production through standardization, with low cost, low price and interchangeability. Bolt connection is very important in automobile industry. It is a common phenomenon to apply bolt tightening to the assembly of automobile industry. SAIC General Wuling Automobile Co., Ltd. mainly produced small commercial vehicles in the past few years, in recent years, according to the needs of market customers, began to enter the passenger car market. Compared with commercial vehicle, the whole system of passenger car is more strict in product development, spare parts supply, whole vehicle manufacture and aftermarket. Quality is the life of the enterprise, and for the assembly workshop, bolt connection is one of the most basic and important quality process control points. Through systematic analysis of the factors affecting bolt connection, this paper expounds how to adopt process control means, and puts forward the concept of dynamic and static torque and its special quality control method and calculation method. The aim of this paper is to provide a set of perfect manufacturing process consistency assurance scheme for the enterprises pursuing lean production, which is the main research content of this paper. This paper takes the bolt connection quality control in the assembly workshop of SAIC Wuling Automobile Co., Ltd as the research object, and puts forward a set of management system systematically from the product development, the product trial production, the product manufacture process. The main content of this paper is to analyze the existing consistency assurance scheme of bolt joint manufacturing process, find out the deficiencies in the enterprise quality control process, and then put forward systematic improvement and innovation scheme. Based on the bolt connection theory such as "torque control method", the tightening tools, testing methods and statistical calculation are studied and analyzed in detail. On this basis, the selection of tools and the process control methods of different tightening tools are put forward. The concepts of dynamic and static torque and process capability are put forward, and a set of simple and practical formulas for calculating static torque are developed. To provide systematic process quality control standards for enterprises and standardize the process control methods of bolt connection quality, the accuracy and reliability of process can be greatly improved, and the product quality of enterprises can be improved. The main contents of this paper are as follows: 1. The application status of bolt connection in automobile manufacturing industry 2, Bolt tightening and testing method 3. Application of tightening tools 4. Guarantee system of process consistency of bolt connection
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH131.3;U466

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