Closing tool and method for filling valve

Abstract

The invention discloses a closing tool and a closing method for filling valves. The closing tool includes a pressure sleeve, a screw sleeve, a spring, a screw cover and a top block, wherein: the pressure sleeve is a rotary body, and a screw is installed on the left side of the pressure sleeve. Set a top block at the right end of the screw sleeve, set a screw cap at the left end of the screw sleeve, set a spring between the screw cap and the top block, and set a hypotenuse and a plane on the right side of the pressure sleeve, which are used to connect with the filling valve. The closed end of the shell fits. Compared with the prior art, the positive effect of the present invention is that: during use, the closure tool of the present invention cooperates with the casing through the inclined surface and the plane of the inner cavity of the pressure sleeve, and realizes one-time closure of the valve casing by a press. Compared with the closing tooling in the prior art, the appearance, the closing method and the closing strength have all been significantly improved, the processing quality and efficiency have been greatly improved, and the labor intensity of the operator has been reduced.

Description

technical field [0001] The invention belongs to the field of tooling design, and in particular relates to a closing tooling and a closing method for shell parts whose main structure is a thin-walled cylinder. Background technique [0002] In the field of valves, thin-walled cylindrical shells are very common parts in valve products. In the valve assembly process, valve components and springs need to be loaded into the shell, and the bottom plate is fixed by closing the parts. The structure is as follows: figure 1 As shown, it includes: housing 11, valve assembly 12, spring 13, bottom plate 14, closing part 15, etc. It can be seen from the figure that the spring force must be overcome when closing the opening to ensure that the shape and position tolerance of the mating surface of the housing and the valve assembly is maintained. If it is not closed properly, it will cause the thin wall of the shell to break or the indentation of the valve core to be deflected, which will aff...

AI Technical Summary

Problems solved by technology

This method has the following defects: 1) The quality of the valve closing is unstable and the closing efficiency is low; 2) The parts are easily damaged during the closing process, and at the same time, the operator has high skill requirements; 3) The valve has strict control over the excess, but plastic cloth, While being protected by silk cloth, it is easy to produce excess

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