机械设计说明书—0.5T焊接变位机的设计.doc

题目：0.5T焊接变位机的设计 PAGE PAGE IV 0.5T焊接变位机的设计 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。伸臂式焊接变位机的主体部分是翻转机构、回转机构、底座。本设计主要是设计翻转机构的减速装置、回转机构的减速装置。以及各部分和零件的各参数的选择。 本焊接变位机采用直流电机—减速机驱动工作台回转并倾斜，具有运动精度高、惯量小、制动性和稳定性好，可实现无级调速，方便实现正反转等优点。批量生产可获得比较高的经济效益。 焊接变位机有利于实现最佳位置的焊接过程。提高工作效率、降低疲劳强度并达到良好的焊缝成型。 关键词：伸臂式焊接变位机；回转机构；减速器 The Design of 0.5T Welding Positioner 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 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. This welding positioner used DC motor and slowdown plane to drive the workbench to gyration or inclination. It has some advantages, such as a high-precision movement, inertia small, good braking and stability. It also can easily achieve stepless speed regulation, positive or negative turns. Because of its notables economic benefit, if it would been produced largely. Welding p