Valve bonnet surface coating spraying jig

The utility model provides a valve bonnet surface coating spraying jig, and relates to the technical field of spraying jigs, the valve bonnet surface coating spraying jig comprises a jig body, a preformed hole is formed in the upper surface of the jig body, two rectangular holes are formed in the two ends of the jig body, the jig body is provided with the same bottom plate in a sliding insertion mode through the two rectangular holes, and the bottom plate is provided with a plurality of through holes. The jig comprises a jig body, adjusting devices are arranged on the two sides of the jig body, each adjusting device comprises an adjusting plate, and limiting holes are formed in the two sides of the jig body. According to the valve bonnet paint spraying jig, the mounting hole, matched with the valve bonnet in size, in the adjusting plate is moved to the reserved hole position of the jig body, the bolt on the L-shaped plate is rotated, the bolt extrudes the groove of the adjusting plate, the effect of fixing th