摘要：焊接变位机是一种焊接辅助设备，它与焊接操作机、焊接滚轮架井称为焊接辅助设备中三大机。焊接变位机是应焊接行业的机械化、自动化发展需要而产生的。焊接变位机作为一种焊接配套设备，用于管子横向对接焊接，管子与法兰内外环缝焊接，管子对管子全位置焊接。焊接变位机可水平翻转角度，通过工作台的回转及翻转运动使工件上焊缝处于最理想的位置进行焊接，从而大大提高焊缝质量，减轻焊工劳动强度，尤其是适合焊接各种轴类、盘类、筒体等回转工件的理想设备。本设计分析了解国内焊接变位机的发展状况，设计5吨级焊接变位机。该变位机具有两个自由度，采用三级减速传动。可以方便实现工件的旋转和倾斜翻转，从而能使焊缝变化到平焊位置或“船形”位置。本焊接变位机采用交流电机—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。6367
关键词: 焊接变位机；变位自由度；焊接辅助设备。
5 Tons of Loader Front Welding Positioner Design
Abstract：Welding positioner is a kind of welding auxiliary equipment, it was known as three planes in welding auxiliary equipment with welding manipulator, welding roller bed.Welding positioner was designed with the development of welding industry mechanization,and automation. As a welding auxiliary machine, welding positioner was used in pipe's landscape orientation welding, pipe and flange's inside and outside central linking welding,pipe welding in all location. Though the gyration and retroflexion of the workbench, the welding positioner can make the welding line to an ideal position, which can improve the quality of the welded joint, reduce welder's workload. It is ideal equipment especially fit to weld the kinds of workpiece, just like the shaft, tray, canister, and so an.By understanding the welding positioner' s development in domestic and overseas, and the positioner used in welding robot is described in the paper. A 5 ton s of welding positioner is designed. The positioner has two freedoms of motions and two unattached formula driving device and gearing. It can easily achieve the gyration and the inclination of the workpiece, thereby changing welding seam to down hand position or "ship farm" position. This welding positioner used AC motor and slowdown plane to drive the workbench to gyration or inclination. It has same 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.
Keywords：welding positioner, freedom of deflection, welding auxiliary machine.
目 录
1. 绪论 1
1.1 焊接辅助设备行业简介 1
1.2 焊接变位机的发展状况 1
1.3 焊接辅助设备行业的展望 4
1.4 毕业设计内容 4
2.变位机总体设计 6
2.1 变位机各种结构型式 6
2.2 前车架的结构和焊接工艺 8
2.3 前车架焊接变位机总体设计方案 10
2.3.1传动方案的选定 10
2.4 传动系统设计 13
2.4.1电机功率的估算 13
2.4.2传动比的分配 15
2.5 变位机稳定性计算 16
2.5.1 变位机底座尺寸设计 16
2.5.2 地脚螺栓的校核 16
2.6 导电装置的布置 19
2.7 焊接变位机总体布局 20 5吨级装载机前车架焊接变位机总体设计+CAD图纸:http://www.751com.cn/jixie/lunwen_3872.html