一种能自动定心的环缝焊机

针对大直径管板环缝焊接中工件体积大、管子无法转动的问题,研制一种包括自动定心和焊枪旋转机构的环缝自动焊接设备,通过3组曲柄滑块机构实现焊枪旋转中心与管子中心的快速准确对齐,并设计了基于AVR单片机的自动控制系统,实现定心和焊接过程的自动化,且该系统能够适应管径变化范围大的应用场合。

An automatic centering girth welding machine

Due to the big volume of workpiece and unable rotating tube in the girth welding of the large diameter tube plates,it is difficult to guarantee that the rotation center of the welding torch and the pipe center are aligned.In this paper,the girth welding equipment with automatic centering and rotating welding gun is developed.Through three groups of slider-crank mechanism,the rotation center of welding gun and the center of tube can be quickly accurately aligned.And an automatic control system is designed based on the AVR microcontroller to realize the automation of centering and welding process.This system can adapt to the application which has a large range of change of the tube diameter.