一、前言目前国内使用焊接法兰的设备主要有两种型式:立式和卧式(如图4a、b、所示)。与立式相比,卧式有下列优点: 1.不受管子长度限制。 2.可以直接在焊机托架上装配法兰,减少中间周转过程,及其他附属装置。并且可以利用双机头同时焊接管子两端法兰。 3.有利于实现管子加工自动流水线。考虑到生产上的需要,这套设备是采用平卧式结构及CO_2保护细丝焊接工艺。整套设备由下列几部份组成:焊接机头、回转夹紧机构、托架、翻管器、移动小 I. Introduction At present, there are mainly two types of equipment for welding flanges in China: vertical and horizontal (as shown in Fig. 4a, b). Horizontal compared to the vertical, the following advantages: 1. Unrelated to the length of the tube. 2. It is possible to assemble the flange directly on the bracket of the welding machine to reduce the intermediate turnover process and other ancillary devices. And you can use dual-head welding at the same time both ends of the flange. 3 is conducive to the realization of pipe processing automatic assembly line. Taking into account the needs of production, this device is a horizontal structure and CO_2 protection filament welding process. The whole set of equipment consists of the following parts: welding head, slewing clamps, brackets, flippers, small mobile