Tool capable of controlling heat treatment distortion of high pressure turbine static case

Abstract

The invention discloses a tool capable of controlling the heat treatment distortion of a high pressure turbine static case. The tool structurally comprises a base plate, no less than 2 first kind of locating pins used for locating the case and positioned on the base plate, no less than 3 axis seats used for locating the axis of the case, no less than 4 pressing plate components used for tightly pressing and fixing the case, connecting plate fixing devices used for fixing blade connecting plates, blade body fixing devices used for fixing support plate blade bodies and a top ring used for connecting all the connecting plate fixing devices integrally, wherein the number of the connecting plate fixing devices is the same as that of the blades; and the number of the blade body fixing devices isthe same as that of the support plate blades. With the adoption of the tool for controlling the heat treatment distortion of a fan framework component, the problems as follows are solved: a constrainbetween the tool and the parts has gaps, the constraining function is ineffective or the constraining force is too large, so that the parts get stuck in the tool and cannot be taken out easily.

Description

Technical field [0001] The invention relates to the technical field of heat treatment of a high-pressure turbine stationary casing, in particular to a tooling device for controlling the deformation of a high-pressure turbine stationary casing during a heat treatment process. Background technique [0002] The structure of the static casing of the aero-engine high-pressure turbine is as attached Figure 5 As shown, the structure is very complicated, and the blades and the supporting blades are fixed to the casing body by welding. The casing body and the blades are made of titanium alloy. The high-pressure turbine stationary casing after welding is usually subjected to heat treatment to eliminate welding stress due to the large welding stress. Heat treatment is a special process that heats parts and keeps them at a certain temperature for a period of time, and then cools them to make parts meet certain performance requirements. However, as parts are in the process of heating, holdin...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art tooling for controlling the heat treatment deformation of the high-pressure turbine stationary casing, the purpose of the present invention is to provide a tooling for controlling the heat treatment deformation of the high-pressure turbine stationary casing with a new design concept, so as to solve the problem of controlling the high-pressure turbine stationary casing in the prior art. The heat treatment deformation tooling of the casing exists, or there is a gap in the constraint between the tooling and the parts, which does not play a restraining role; or the interference fit, the binding force is too large, resulting in the parts being stuck in the tooling after cooling, and it is not easy to take it out.

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