Ball surface spray welding device for ball valve

Abstract

The invention discloses a spray welding device for a ball body surface of a ball valve. A temperature control box comprises an upper box body and a lower box body, wherein a spray gun gate is arranged on the upper box body or the lower box body; the upper box body covers on the lower box body; a cavity for accommodating a ball body is formed in the temperature control box, an elastic-form mandrel passes through a hole of the ball body and is tightly matched with the ball body; the two ends of the mandrel prop against a tail frame by virtue of a chuck at the front end of a gearbox respectively; a spray gun is arranged on the outer side of the spray gun gate, the spray gun is connected with a spray gun swinging mechanism. The spray welding device is reasonable in structure, capable of enabling a sprayed piece to be integrally preheated in the temperature control box, high in heating efficiency, uniform in temperature, high in combination compactness and small in stress on a combined surface; the sprayed piece is integrally re-molten in the temperature control box, so that the surface of the sprayed piece is completely and sufficiently bonded in a metallurgical manner, and thus, a peel-off phenomenon is avoided; the spray welding device is cooled along with the box, so that the hardness of all surfaces is uniform, the processing efficiency is high and the quality is good. And besides, the working environment of the staff is improved, and the labor intensity of the staff is relieved.

Description

technical field [0001] The invention relates to a spray welding device for the surface of a ball valve. Background technique [0002] The existing spray coating on the surface of the ball of the ball valve is prone to peeling, the processing efficiency is low, the work intensity is high, and the operating environment is poor, and further improvement is required. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a ball surface spray welding device of the ball valve with convenient operation, high processing efficiency and good bonding performance of the spray coating on the ball surface of the ball valve. [0004] The technical solution of the present invention is: [0005] A ball valve surface spray welding device, which is characterized in that it includes a temperature control box, a reduction box, a tailstock, a spray gun, and a spray gun swing mechanism, and the temperature control box includes an upper box body, a lower box body, an...

AI Technical Summary

Problems solved by technology

[0002] The existing spray coating on the ball surface of the ball valve is prone to peeling, low processing efficiency, high work intensity, and poor operating environment, which needs further improvement

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