Welding device for water turbine volutes and using method of welding device

Abstract

The invention relates to the technical field of welding devices, and discloses a welding device for water turbine volutes. The welding device comprises a welding table. A positioning cylinder is fixedly connected to the inner surface of the welding table. A positioning rod is slidably connected to the middle of the positioning cylinder. One end of the positioning rod is fixedly connected with a bearing plate located above the positioning cylinder. The top of the positioning cylinder is fixedly connected with horizontal plates located on the two sides of the positioning rod. The side faces of the horizontal plates are movably connected with the horizontal plates. According to the welding device for the water turbine volutes and the using method of the welding device, under the effect of thepositioning cylinder, the moving stability of the positioning rod is improved, and the situation that the bearing plate shakes back and forth due to back-and-forth shaking of the positioning rod in the moving process, and consequentially the welding precision is reduced is avoided; and under the effect of the horizontal rods, the positioning rod is directly fixed after being moved, so that the situation that the bearing plate drives the positioning rod to slide downwards automatically under the effect of the gravity is prevented, and then the volute slides downwards automatically and cannot be welded is prevented.

Description

technical field [0001] The invention relates to the technical field of welding devices, in particular to a hydraulic turbine volute welding device and a method for using the same. Background technique [0002] The volute is the abbreviation of the volute-type water diversion chamber. Its shape is very similar to a snail shell, so it is usually referred to as the volute. In order to ensure uniform water supply to the water guide mechanism, the section of the volute is gradually reduced. The necessary circulation is formed to reduce the working intensity of the water guiding mechanism. [0003] The volute of the turbine is welded by multiple parts. Most of the existing welding devices for the volute of the water turbine. During the welding process, the volute of the water turbine is subjected to external force, and then moves on the welding table, causing the welding position of the volute of the turbine to occur. The change caused the accuracy of the welding of the turbine v...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a hydraulic turbine volute welding device and its use method, which has the advantages of improved precision and strong applicability, and solves most of the hydraulic turbine volute welding devices. During the welding process, the hydraulic turbine volute is subjected to external force, and then The movement of the welding table caused the welding position of the turbine volute to change, resulting in incorrect welding accuracy of the turbine volute, and the welding table could not adjust the position of the clamping device and the turbine volute according to the height of the turbine volute, resulting in the failure of the clamping device It can only adapt to the problem of turbine volute of the same specification

Images