Automatic wire welding equipment for water valve machining

The invention relates to the field of water valve welding, in particular to water valve machining automatic wire welding equipment which comprises a bottom frame, a linkage device, a turnover device and a welding device. When the inner surface of a large butterfly valve is subjected to surfacing welding, due to the fact that the butterfly valve is large in mass and size and the outer surface of the butterfly valve is round, the butterfly valve is prone to shaking after being hung, the phenomenon that bubbles are generated at the welding position or surfacing welding is uneven is easily caused, and the surfacing welding quality is affected; the butterfly valve can be overturned by 90 degrees through the overturning device, and the welding device can synchronously move to the inner surface of the butterfly valve in the overturning process of the butterfly valve; along with rotation of the speed reducing motor and the driving motor, the butterfly valve is driven by the driving roller to rotate at a constant spee