Automatic welding machine

The invention is named as an automatic welding machine, belongs to the technical field of welding and mainly solves the problems that contact points (faces) are not in close contact and welding pointsat welds are nonuniform when a brake air chamber shell and nuts are welded. The automatic welding machine is mainly characterized by comprising a CO2 gas tank, a carbon dioxide shield welding machine, a part movement-resistant fastening support, a part tray, a welding gun component, a main electric control box and a control panel, and the part movement-resistant fastening support comprises a supporting plate, a moving push rod, a spring and a rotary wrench. The automatic welding machine has the advantage that welding quality, working efficiency and product qualification rate are improved andis mainly used for welding the brake air chamber shell and the nuts. 本发明的名称为自动焊接机。属于焊接技术领域。它主要是解决焊接制动气室壳体与螺母时存在触点（面）不紧密接触、焊接处焊点不均匀的问题。它的主要特征是：包括CO气罐、二氧化碳保护焊机、零件防动紧固支架、零件托盘、焊枪组件、主电控箱和操控面板；零件防动紧固支架包括支撑板、活动推杆、弹簧、回转扳手；本发明具有提高焊接质量、