Pressure container welding equipment and operating method

The invention relates to the technical field of welding equipment, in particular to pressure container welding equipment and an operating method. The pressure container welding equipment comprises a bottom plate, a moving assembly, a lifting assembly, a propelling assembly and a clamping assembly, wherein a lead screw is rotated through driving of a first motor; a first sliding block is driven through a screw hole to be moved through rotation of the lead screw, so that the first sliding block is slid on a first sliding rod through a first sliding hole; the first sliding block is slid leftwardsand rightwards, so that a welding gun of the pressure container welding equipment can be moved leftwards and rightwards, and a side seam of a cylindrical pressure container can be conveniently and quickly welded, and thus, the working efficiency of using is improved; meanwhile, the using flexibility is also improved, and different parts of the pressure container can be flexibly welded in a movingmanner; by using the firs