【摘要】 针对曲线结构工件的人工焊接效率低、焊接质量不稳定、人工劳动强度大等问题,基于机器人设计出一种高效率和高精度的焊接系统。本系统采用机器人与PLC联合控制变位机的翻转和回转,使待焊工件的焊缝始终处于平焊或船形焊位置,利用触摸屏设置翻转速度和显示整个控制系统的工作状态,通过机器人与焊机的通讯及机器人在线示教编程,实现曲线结构工件的自动化焊接。为了保证焊接质量,采用接触传感和电弧传感功能精确寻位和实时修正示教轨迹。经实际应用表明,系统运行良好,达到了预期设计目标。更多还原

【Abstract】 In order to solve the problems of low efficiency and labor-intensive of manual welding and unstable welding quality of the curved structure workpiece, a welding system with high efficiency and high precision based on robot is designed. The system adopts PLC and robot to control the rotation and revolution of the positioner,which makes the welds always in the fillet welding position, and a touch screen is used to set up the speed of revolving and display the working state of the whole control system. The automatic welding of the curved structure workpiece is realized through the communication between the robot and the welding machine and the online teaching programming of the robot. In order to guarantee the welding quality, the contact sensing and arc sensing functions are used to precisely locate and modify the teaching track. The application result shows that the system has a good effect and achieves the desired design goals.更多还原