CN103831574A

CN103831574A - Process for repairing hollow turbine blade body blocking cover

Info

Publication number: CN103831574A
Application number: CN201310669453.9A
Authority: CN
Inventors: 袁光强; 代祥勇; 代凤; 张爱民; 谢红梅; 何军
Original assignee: Guizhou Liyang Aerospace Power Co Ltd
Current assignee: Guiyang Hangfa Precision Casting Co Ltd
Priority date: 2013-12-10
Filing date: 2013-12-10
Publication date: 2014-06-04
Anticipated expiration: 2033-12-10
Also published as: CN103831574B

Abstract

The invention discloses a process for repairing a hollow turbine blade body blocking cover. The process comprises the steps of manufacturing and preparing repairing tools, grinding the hollow turbine blade body blocking cover, forming a small opening in the thinned blade body blocking cover, damaging the blade body blocking cover, taking out the deformed and damaged blocking cover, and replacing the deformed and damaged blocking cover with a new blocking cover. The process has the advantages that the simple repairing tools such as a globe grinding head, a conical grinding head, a long sharp rod, a long hooked rod, a clamp and a hammer are adopted, the actual operation is relatively easy to achieve, a common worker can conduct repairing, a large amount of capital is saved for a factory, and meanwhile compared with an existing repairing process, the efficiency and the qualified rate are obviously improved; the repairing efficiency is improved by more than 50 percent, the repairing qualified rate is improved to more than 95 percent from 10 percent to 20 percent, the convenient and easy repairing of the blade body blocking cover is achieved, and the repairing efficiency and the qualified rate of the blade body blocking cover are improved.

Description

Hollow turbine vane blade blanking cover renovation technique

Technical field

The present invention relates to hollow turbine vane blade blanking cover renovation technique, belong to blade of aviation engine manufacturing technology field.

Background technology

At present, existing hollow turbine vane blade blanking cover renovation technique is mainly to adopt electric pulse and lead plug, this technique practical operation is got up very difficult, and can cause the scuffing of touching in various degree to blade in getting blanking cover, the remediation efficiency of blade blanking cover only has 20% left and right, and repair after qualification rate only have 10～20% left and right, had a strong impact on the Leaf productivity of factory.

Summary of the invention

The object of the present invention is to provide hollow turbine vane blade blanking cover renovation technique, overcome the deficiencies in the prior art, can realize the reparation of blade blade blanking cover simple and easy to do, improve the efficiency of blade blanking cover reparation and the technique of qualification rate.

The object of the invention is to be achieved through the following technical solutions: hollow turbine vane blade blanking cover renovation technique, it comprises following steps:

(1), make and prepare fix tool: fix tool comprises spherical mounted point, conical grinding wheel, band point stock, buckle stock, pliers and tup, the spherical mounted point and the conical grinding wheel that match according to the structure fabrication of hollow turbine vane blade blanking cover and blanking cover size, being with sharp stock and buckle stock is that 45 steel pass through forging forming;

(2), the polishing of hollow turbine vane blade blanking cover: with spherical mounted point to blade and blade worn and torn with it inwall and the bottom even polishing of blanking cover, until its attenuation;

(3), on the blade blade blanking cover thinning, open osculum: on the inwall with conical grinding wheel at blanking cover, open an osculum, after punching press, form lageniform huge tension force to eliminate blanking cover;

(4), the blanking cover of blade blade is destroyed: will be against with the tip of sharp stock on the contact point of blanking cover and blade, beat gently with tup, until whole blanking cover is deformed destruction;

(5), take out the blanking cover of deformation failure: the blanking cover of deformation failure hook is gently gone out with hook-type stock, so that the blanking cover of deformation failure is exposed to outside blade blade plug-hole as much as possible, with the distortion blanking cover outside the pliers clamping plug-hole with most advanced and sophisticated, firmly press from both sides out the blanking cover of whole distortion;

(6), more renew blanking cover, complete the reparation to blade blade blanking cover.

Described spherical mounted point and the surface of conical grinding wheel are provided with and scribble Buddha's warrior attendant abrasive particle.

Beneficial effect of the present invention is: adopt spherical mounted point, conical grinding wheel, be with sharp stock, buckle stock, the simple reparing process such as pliers and tup, practical operation is got up and is realized than being easier to, common workman just can repair, for factory has saved a large amount of capitals, be significantly improved with existing renovation technique phase specific efficiency and qualification rate simultaneously, remediation efficiency improves more than 50%, the qualification rate of repairing is brought up to more than 95% by 10%～20%, having realized blade blade blanking cover repairs simple and easy to do, improve leaf body blanking cover repair efficiency and the technique of qualification rate.

Brief description of the drawings

Fig. 1 is the schematic diagram of fix tool of the present invention;

Fig. 2 is the schematic diagram of blanking cover polishing of the present invention;

Fig. 3 is the schematic diagram of blanking cover opening of the present invention;

Fig. 4 is the schematic diagram that the present invention destroys blanking cover;

Fig. 5 is the schematic diagram that the present invention ticks the thin blanking cover of deformation failure;

Fig. 6 is the schematic diagram that the present invention takes out the thin blanking cover of deformation failure.

Wherein, 1-spherical mounted point, 2-conical grinding wheel, 3-tup, 4-is with sharp stock, 5-buckle stock, 6-pliers, the thin blanking cover of 7-, 8-blade blade, 9-osculum.

Detailed description of the invention

Further describe technical scheme of the present invention below in conjunction with accompanying drawing, but described in claimed scope is not limited to.

Hollow turbine vane blade blanking cover renovation technique, it comprises following steps:

(1), as Fig. 1, make and prepare fix tool: fix tool comprises spherical mounted point 1, conical grinding wheel 2, is with sharp stock 4, buckle stock 5, pliers 6 and tup 3, the spherical mounted point 1 and the conical grinding wheel 2 that match according to the structure fabrication of hollow turbine vane blade blanking cover and blanking cover size, being with sharp stock 4 and buckle stock 5 is that 45 steel pass through forging forming;

(2), as Fig. 2, the polishing of hollow turbine vane blade blanking cover: the polishing of the inwall with spherical mounted point 1 to the blanking cover that weares and teares on blade blade 8 and bottom even, until its attenuation forms thin blanking cover 7;

(3), as Fig. 3, on the blade blade blanking cover thinning, open osculum: on the inwall of thin blanking cover 7, open an osculum 9 with conical grinding wheel 2, after punching press, form lageniform huge tension force to eliminate blanking cover;

(4), as Fig. 4, the blanking cover of blade blade is destroyed: on the contact point of will be against with the tip of sharp stock 4 thin blanking cover 7 and osculum 9, beat gently with tup 3, until whole thin blanking cover 7 is deformed destruction;

(5), as Fig. 5, Fig. 6, take out the blanking cover of deformation failure: the thin blanking cover 7 of deformation failure hook is gently gone out with hook-type stock 5, so that the thin blanking cover 7 of deformation failure is exposed to outside the plug-hole of blade blade 8 as much as possible, with the thin blanking cover 7 that clamps the deformation failure outside plug-hole with most advanced and sophisticated pliers 6, firmly press from both sides out the thin blanking cover 7 of whole deformation failure again;

The surface of described spherical mounted point 2 and taper 3 bistriques is provided with and scribbles Buddha's warrior attendant abrasive particle.

Claims

1. hollow turbine vane blade blanking cover renovation technique, is characterized in that: it comprises following steps:

2. hollow turbine vane blade blanking cover renovation technique according to claim 1, is characterized in that: described spherical mounted point and the surface of conical grinding wheel are provided with and scribble Buddha's warrior attendant abrasive particle.