点焊夹紧装置分析及设计

论文编号:JX957  论文字数:6713.页数:19   附CAD图

摘   要
 点焊--电焊的一种，适用于金属薄板及钢筋等的焊接。把两金属焊件夹持在点焊机的两电极之间，电流通过接触点使其迅速加热，在电极压力作用下造成永久性连接。
 本文对点焊过程中的夹紧工艺进行了详细分析，设计主要完成点焊装置了解认识、夹紧机构机械设计、液压动力部分设计、电气控制系统、零部件工艺设计。             近10年来我国焊接工业发展很快，但生产设备和工艺与发达国家相比尚有一定差距。在我国目前的焊接类生产企业中,大约有80%以上的企业仍然在采用80年代后期的生产设备。产品产量低，生产效率低，生产成本高等一系列因素是该类产品的通病。这一点严重制约着企业的发展，同时也造成了资源的极大浪费。该夹紧设计就是应现代化生产的需要而研究设计的。该设计包括机械夹紧装置的设计，液压控制系统的设计，以及电气控制系统的设计。将机－电－液技术结合起来，实现快速夹紧。

关键词：点焊 夹紧 夹紧装置

      Spot clamping device process analysis and mold design
Abstract
 Spot Welding - A welding for steel and other sheet metal and welding. Welding the two pieces of metal holding in the spot-welding between the two electrodes, current through the contact point to the rapid heating, under pressure in the electrode caused by a permanent connection.    In this paper, the process of spot welding process of clamping a detailed analysis of spot welding device designed to complete understanding of understanding of mechanical design clamping bodies, part of the design of hydraulic power, electrical control systems, process design components. Welding industry in our country the past 10 years has developed very rapidly, but the production equipment and technology and there is a certain gap between the developed countries. In China's current production of welding-type enterprises, about 80% of enterprises are still in the late 80's production facilities. Low production, low productivity, high cost of production of such products to a number of factors is a common problem. This is seriously restricting the development of enterprises, but also caused a great waste of resources. The clamp is designed to be the needs of modern production and research design. The design includes the design of mechanical clamping device, hydraulic control system design, and electrical control system design. Will drive - power - combination of fluid technology to achieve fast clamping.
 
Keywords：spot welding； Clamp；Clamping device

目  录
中文摘要 i
英文摘要 ii
目录 iii
第一章     绪论 1
 1.1  研究动机与目的 2
 1.2  研究设计背景 2
 1.3  研究课题方案确立 3
 1.4  研究课题內容概述 3
第二章     夹紧装置具体分析及设计 4
 2.1   夹紧装置的组成和要求 4
2.1.1  夹紧装置的组成 4
2.1.2  对夹紧装置的要求 5
2.1.3  夹紧力的确定 5
2.1.4  典型夹紧机构 6
2.1.5  夹紧的动力装置 7
第三章     液压系统与电气部分设计 8
 3.1   液压系统的设计 8
     3.1.1  液压系统的选择 10
     3.1.2  液压系统的工作原理 14
 3.2   电气部分的设计 15
3.2.1  PLC控制原理 16
3.2.2  相关指令与功能图 17
第四章     结论 18
参考文献 19
致谢  19

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