Welding device for hydraulic cylinder accessory machining

The invention discloses a welding device for hydraulic cylinder accessory machining, and relates to the technical field of hydraulic equipment.The welding device comprises a welding part and a supporting base, the welding part is installed on the side wall of the supporting base, a transversely-arranged bracket is fixed to the side wall of the supporting base, and a driving assembly and a clamping part are installed on the bracket; the driving assembly is movably connected with the side wall of the clamping part, the clamping part comprises a face disc, a bottom frame and a locking linkage assembly, and the locking linkage assembly comprises a rotary knob, a transition cylinder, a limiting ring, a sector plate and a rack; according to the welding device for hydraulic cylinder accessory machining, in the process that a clamping part clamps a workpiece, a plurality of symmetrically-distributed buckling blocks can be buckled at the same time, the buckling degree of the buckling blocks is adjustable, the applicat