臂伸式焊接变位机设计工作台回转机构设计--本科毕业论文.docVIP

摘要 焊接变位机运动系统的设计是焊接变位机方案设计的核心内容，而焊接变位机运动自由度的确定是其前提条件。焊接变位机的关键是对变位机进行最佳位置焊接所需要的运动自由度的设计，如平动或转动的设计。伸臂式焊接变位机是将工件回转，翻转，以便使工件上的焊缝置于水平和船形位置的机械装置。伸臂式焊接变位机是应用最广泛的一种焊接变位机，载重量一般不超过1吨。其主体部分是翻转机构、回转机构、底座。 此次论文论述了焊接变位机械的组成，工作原理，重点讲述了其中的回转机构的设计，回转机构通过带传动，二级蜗杆蜗轮减速器的传动，从而使工作台得到预期的回转速度。回转机构中测速发电机的使用，将其工作台的瞬间速度反馈到电动机，从而调整电动机的转速，进而使工作台的回转速度稳定在某个范围内，保证了焊缝质量。 关键词：焊接变位机械；测速发电机；回转机构；减速器 Abstract The design of the moving system of the welding positioner is the core content of the scheme design ,but the system depends on the moving freedom`s certainty.The key part of the design of the welding positioner is the design of the moving freedom, according to the best welding position. The main parts of the welding positioner include overturning machinery, circumgyrating machinery,and the base.The arm-extending welding posioner is used most widely ,the load is less than one ton.The arm-extending welding positioner is the machine which makes the workpiece circumgyrate and overturn to make the welding line on the workpiece park the level direction and cymbate position. The welding positioner`s makeup and operating principle make up of the paper ,which disserates the design of the turning gear of the machine .The belt driving and two stage worm – worm wheel retarder make the turning gear realize the man`s anticipating speed.The use of the techogenerator which will feed back the instant speed to the generator and then the controller will adjust the speed makes sure of the high welding line quality. Key words: welding positioner; techogenerator; turning gear; retarder 目录 摘要 I Abstract II 目录 Ⅲ 前言 1 第1章 绪论 2 1.1伸臂式焊接变位机械概述 2 1.2 课题研究的意义及现状 5 1.3 论文主要研究内容 5 第2章 回转机构中非标准件的设计计算及校核 7 2.1回转主轴的设计计算和校核……………………………………………...………7 2.2减速器的设计计算……………………………...…………………………………9 2.3带传动的设计计算…………………………………...…………………………..26 第3章 回转机构中标准件的选择及校核 29 3.1 轴承的选择及校核 29 3.2 键的选择及校核 34 3.3 电动机·螺纹紧固件·密封圈的选择及校核 36 第4章 焊接变位机械其它机构的简单设计概述 37 4.1 伸臂梁的设计计算 37 4.2 倾斜机构中减速器的设计计算 37 4.3 底座和箱体的设计 37 结论 39 参考文献 40 致谢