Welding workstation used for welding of arm of truck with crane

The invention discloses a welding workstation used for welding of an arm of a truck with a crane. The welding workstation comprises a welding workbench, longitudinal clamping mechanisms, transverse clamping mechanisms, a moving mechanism and a welding frame; and each longitudinal clamping mechanism is composed of a longitudinal mounting plate, a longitudinal mounting plate, a height limiting rod and a longitudinal clamping rod, each transverse clamping mechanism is composed of a transverse clamping rod, a transverse mounting rod and a transverse clamping plate, the moving mechanism is composedof a driving motor, two fixing plates, a lead screw and a nut seat, the driving motor penetrates through one of the fixing plates by a shaft coupling and is in transmission connection with the lead screw, the nut seat is in rolling connection with the outer wall of the lead screw, and the welding frame is welded to the outer wall of the nut seat. According to the welding work station used for welding of the arm of the tr