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Blade repair positioning device for aeroengine low pressure turbine guide

A technology for aero-engines and low-pressure turbines, applied in auxiliary devices, metal processing equipment, auxiliary welding equipment, etc., can solve the problem of high technical level and experience of workers, manual positioning can not find the center, affect the effect of repair, etc. problems, to achieve the effects of shortening the production cycle, reducing positive deformation and repair procedures, and stable and reliable welding positions

Active Publication Date: 2019-04-23
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a blade repair and positioning device for the low-pressure turbine guider of an aero-engine, so as to solve the problem that the existing manual positioning cannot find the exact center, has high requirements on the technical level and experience of workers, wastes a lot of manpower and material resources, and easily causes mistakes And the problem that the defect affects the effect after repair

Method used

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  • Blade repair positioning device for aeroengine low pressure turbine guide
  • Blade repair positioning device for aeroengine low pressure turbine guide
  • Blade repair positioning device for aeroengine low pressure turbine guide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like Figure 1 to Figure 6 As shown, the blade repair and positioning device for the low-pressure turbine guider of an aeroengine includes a base 1; two side positioning blocks 2 are arranged on the base 1; the two side positioning blocks 2 are arranged symmetrically with respect to the center line of the base 1; The main positioning mechanism, the main positioning mechanism is located on the center line of the base 1, and it forms a triangular positioning group with the two side positioning blocks 2; the triangular positioning group positions the low-pressure turbine guide so that it can be stably fixed, and the center is very clear. It avoids the situation that manual positioning cannot find the exact center and requires high technical level and experience of workers.

[0028] Wherein, the main positioning mechanism includes a main positioning block 23 and a compression screw 3 connected with the main positioning block 23 for locking the low-pressure turbine guide; th...

Embodiment 2

[0034] like Figure 1 to Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that the base 1 is provided with an edge plate positioning block 8 located on one side of the center line; the edge plate positioning block 8 includes a bottom plate 10 arranged on the base 1 and an The positioning column 9 on the bottom plate 10; the edge plate positioning block 8 is used to fix the edge plate of the low-pressure turbine guider.

[0035] In a preferred embodiment of the present invention, the base 1 is provided with a first leading edge positioning block 11 and a second leading edge positioning block 12 for positioning the leading edge of the low-pressure turbine guide; the first leading edge positioning block 11 and the second The leading edge positioning block 12 is located between the edge plate positioning block 8 and the center line; the first leading edge positioning block 11 and the second leading edge positioning block 12 are arranged radially relati...

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Abstract

The invention discloses a vane repair and positioning device for an aero-engine low-pressure turbine stator, and mainly aims to solve the problems that a true center can not be found through the existing manual positioning, requirements for the skill level and experience of workers are high, a lot of manpower and material resources are wasted, and mistakes and defects are liable to occur, with influence on the effect after repair in the prior art. The vane repair and positioning device for the aero-engine low-pressure turbine stator comprises a base; the base is provided with two edge positioning blocks which are arranged symmetrically by taking a center line of the base as an axis; and the base is provided with a main positioning mechanism located on the center line of the base, and the main positioning mechanism and the two edge positioning blocks form a triangle location group. Through the above scheme, the purpose of accurately positioning the low-pressure turbine stator is achieved, and the vane repair and positioning device has high practical value and popularization value.

Description

technical field [0001] The invention relates to the field of aero-engine maintenance, in particular to a blade repair and positioning device for a low-pressure turbine guider of an aero-engine. Background technique [0002] The manufacture and repair of low-pressure turbine guide components of aero-engines involves many processes, including assembly, welding, machining, heat treatment, surface treatment, special process treatment, etc., requiring high process precision, difficult manufacturing and repair, and high scrap rate. The high cost has greatly restricted the development of my country's aero-engines; the low-pressure turbine guide of the engine is an integral brazed assembly. After a single blade is ablated, the blade cannot be replaced by the overall brazing method. If the overall replacement of the assembly will greatly improve Repair cost, through a large number of tests, currently adopts EDM, brazing to argon arc welding to replace a single ablation blade; in the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04
CPCB23K37/04
Inventor 刘仍古鸣陈犇周正刁爱军苏静
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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