Spot welding device for processing steel cord finished product spool

According to the spot welding device for steel cord finished product spool machining, the upper end and the lower end of the output end of a first air cylinder in a clamping assembly are each provided with an electric telescopic rod, the first air cylinder can drive the electric telescopic rods to move, and the spot welding device can be suitable for spools of different sizes; the electric telescopic rod can automatically stretch out and draw back after being powered on and is suitable for spool assemblies of different sizes, a clamping plate is arranged at the other end of the electric telescopic rod, a chuck is arranged on the side, away from the output end of the electric telescopic rod, of the clamping plate and used for clamping the spool assemblies, and a bolt is screwed into the chuck and used for reinforcing the clamping force. The transverse plate is arranged above the lifting shaft, the fixing plates are arranged at the two ends of the transverse plate respectively, the screw holes are formed in the