热成形小型试验生产线设计与开发

发布时间：2018-12-29 11:55

【摘要】：中国汽车工业近几年迅猛发展,给人们的生活生产方式带来了巨大的便利,但是随之而来的能源消耗和环境污染问题也日益严峻,严重制约着我国社会经济的发展。实现汽车的轻量化,减少汽车自身的燃油消耗及尾气排放成为缓解能源和环境问题的重要手段之一,也是我国应对能源安全和实现可持续发展的必然选择。高强度钢板的热成形技术和铝合金的温成形技术作为有效的汽车轻量化方法,已经越来越多地应用在了车身的设计和制造当中。而作为保证热成形技术顺利发展的关键环节,成形设备的开发与研究、生产流程的控制与优化已成为各大汽车生产商、汽车研究院所及高校研究的重点与热点。本文在国家工信部“高档数控机床与基础制造装备”科技重大专项子课题“汽车结构件高强度钢板热冲压成形成套装备”项目(2011ZX04001-021)的资助下,结合软件工程和车辆工程两个专业的研究领域,开展了热成形生产线的设计与开发,取得了重要成果,具体工作有:(1)针对热成形生产线的关键设备加热炉、水冷模具和板料输送装置进行研究。自主开发了具有良好防氧化性能的滑轨链动式加热炉;开发了热传导率较高的新型模具材料,并通过3D打印和浇铸相结合的方式制造了某车型B柱水冷模具,针对模具的冷却水道进行了优化设计;设计和开发了直线式板料传送装置以及耐高温的抓拾器。(2)对热成形生产线工作原理和生产中的几个主要环节进行了详细的分析与研究,设计了合理高效的热成形小型试验生产线的生产流程。(3)基于可编程逻辑控制器(PLC)开发了小型试验生产线的自动控制系统,实现了生产线逻辑流程的自动运行;此外还针对触控屏进行了人机交互界面和功能设计,控制系统的参数可以通过触控屏进行设置。该小型试验生产线的建立,为热成形技术最优工艺参数的研究以及PLC编程技术的应用与调试提供了重要支持,具有很高的学术应用价值和工程应用意义。
[Abstract]:The rapid development of China's automobile industry in recent years has brought great convenience to people's life production mode. However, the problems of energy consumption and environmental pollution are becoming increasingly serious, which seriously restricts the development of our country's social economy. To reduce the fuel consumption and exhaust emission of automobile becomes one of the important means to alleviate the problem of energy and environment. It is also an inevitable choice for our country to deal with energy security and realize sustainable development. The hot forming technology of high strength steel plate and the warm forming technology of aluminum alloy are more and more used in the design and manufacture of automobile body as an effective light weight method. As a key link to ensure the smooth development of hot forming technology, the development and research of forming equipment and the control and optimization of production process have become the focus and hot spot of all major automobile manufacturers, automobile research institutes and colleges and universities. This paper is supported by the National Ministry of Industry and Information Technology (2011ZX04001-021) project "High-grade CNC machine tools and basic manufacturing equipment", a major scientific and technological subproject, "High-strength sheet hot stamping complete equipment for automotive structural parts". Combined with the research fields of software engineering and vehicle engineering, the design and development of hot forming production line have been carried out. The main achievements are as follows: (1) heating furnace, which is the key equipment of hot forming production line, Water-cooled die and sheet metal conveyer were studied. The sliding rail chain heating furnace with good oxidation resistance was developed independently. A new type of die material with high heat conductivity was developed, and a B-column water-cooled mould was manufactured by combining 3D printing and casting. The cooling water channel of the die was optimized. This paper designs and develops a straight-line sheet metal conveyer and a high temperature resistant gripper. (2) the working principle of hot forming production line and several main links in production are analyzed and studied in detail. The production process of the small test production line of hot forming is designed. (3) based on the programmable logic controller (PLC), the automatic control system of the small test production line is developed, and the automatic operation of the production line logic flow is realized. In addition, the interface and function of the touch screen are designed, and the parameters of the control system can be set by the touch screen. The establishment of the small test production line provides an important support for the study of the optimum process parameters of hot forming technology and the application and debugging of PLC programming technology. It has high academic application value and engineering application significance.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP311.52

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