CN104359927A - Radiographic inspection positioning device for large-curvature hollow blades - Google Patents

Radiographic inspection positioning device for large-curvature hollow blades Download PDF

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Publication number
CN104359927A
CN104359927A CN201410629652.1A CN201410629652A CN104359927A CN 104359927 A CN104359927 A CN 104359927A CN 201410629652 A CN201410629652 A CN 201410629652A CN 104359927 A CN104359927 A CN 104359927A
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CN
China
Prior art keywords
blade
bearing
profile
support
positioning blocks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410629652.1A
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Chinese (zh)
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CN104359927B (en
Inventor
张孝玲
张娟
王海亮
刘海强
段占峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AECC Shenyang Liming Aero Engine Co Ltd
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Shenyang Liming Aero Engine Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang Liming Aero Engine Group Co Ltd filed Critical Shenyang Liming Aero Engine Group Co Ltd
Priority to CN201410629652.1A priority Critical patent/CN104359927B/en
Publication of CN104359927A publication Critical patent/CN104359927A/en
Application granted granted Critical
Publication of CN104359927B publication Critical patent/CN104359927B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to a radiographic inspection positioning device for large-curvature hollow blades, belonging to the technical field of radiographic inspection. The device comprises a support, two positioning blocks and a limiting pin, wherein the clamping ends of the positioning blocks are symmetrically arranged on the support; the support comprises two profiles of different angles; the limiting pin is arranged at one end, between the two positioning blocks, at the included angle end of the profiles of the support; and the clamping end faces of the two positioning blocks are connected with blade tenons in a matched mode. According to the device disclosed by the invention, the radiographic inspection angles of the blades can be accurately and rapidly positioned, a phenomenon that negative film imaging is influenced because the inner cavity structures of the blades block one another is avoided, an image contrast ratio is enhanced, and the detection quality is guaranteed. The inspection of residual cores of inner cavities of the large-curvature hollow blades is needed by technological development, and immeasurable social benefits are brought.

Description

A kind of for deep camber hollow blade ray detection locating device
Technical field
The invention belongs to X-ray Testing Technology field.Particularly relate to a kind of for deep camber hollow blade ray detection locating device.
Background technology
The manufacturing technology of hollow blade improves constantly inner-cavity structure and also becomes increasingly complex in recent years, and the curvature of blade is also increasing.During casting hollow blade, ceramic core be adopted, after blade cast, adopt chemical reaction to remove core, form blade interior cavity.But when blade depoling is incomplete, remain in the core blocking cooling duct in blade cavity, at high temperature residual core can with blade generation chemical reaction, cause aircraft safety accident.The method of the remaining core of current inspection mainly adopts fills metal powder method, improves its contrast.But for the hollow blade of deep camber, when carrying out ray detection, because vane curvature causes more greatly blocking of image, the quality of blade inner chamber cannot be differentiated.For the inspection of the residual core of deep camber hollow blade, consider detected blade construction feature, manufacture and design a kind of device for deep camber blade ray detection location, realize the accurate quick position of hollow blade transillumination angle, make the parallel independent distribution of the image of blade inner chamber on egative film, get rid of blade inner chamber and mutually block the impact that testing result is caused, improve the contrast of film image, thus ensure Detection job.
Summary of the invention
In order to solve the technical matters of above-mentioned existence, the invention provides a kind of for deep camber hollow blade ray detection locating device.Can realize that the residual core of deep camber casting hollow blade can effectively detect, detection and location solidification, improve Detection job, ensure the safety of engine.
The technical solution used in the present invention is as follows:
The present invention's one is used for deep camber hollow blade ray detection locating device, comprise bearing, locating piece and spacer pin, described locating piece is two, bare terminal end is symmetrically placed on bearing, described bearing has the profile of two different angles, one end in bearing profile angled end between two locating pieces is provided with spacer pin, and the clamping end face of two locating pieces coordinates with blade tenon and connects.
Further, described two profiles and blade cavity axis are parallel respectively, the profile vertical plane containing blade cavity axis and blade cavity non-intersect.
Beneficial effect of the present invention:
The present invention can accurate quick position blade ray detection angle, and preventing blade inner-cavity structure from mutually blocking affects egative film imaging, strengthens image contrast, ensures Detection job.So the inspection of the residual core of deep camber hollow blade inner, be the needs of technical development, immeasurable social benefit will be brought.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention when detecting.
Fig. 2 is floor map of the present invention.
Fig. 3 is the present invention's blade schematic diagram to be detected.
In figure: 1. bearing, 2. locating piece I, 3. locating piece II, 4. spacer pin, 5. straight pin, 6. screw, 7. blade, 701-708 is blade cavity, 8. profile I, and 9. profile II, L is axis.
Embodiment
Describe the present invention below in conjunction with drawings and Examples:
Embodiment: as shown in Figure 1-Figure 3, the present invention includes bearing 1, locating piece I 2, locating piece II 3 and spacer pin 4, the bare terminal end of described locating piece I 2, locating piece II 3 is symmetrically placed on bearing 1, fix respectively by straight pin 5 and hexagon socket cap head screw 6, described bearing 1 has the profile of two different angles, one end in bearing 1 profile angled end between two locating pieces I 2, locating piece II 3 is provided with spacer pin 4, and the clamping end face of two locating pieces coordinates with blade tenon and connects.
As shown in Figure 2, described profile I 8, profile II 9 and blade cavity axis L are parallel respectively, the profile vertical plane M containing blade cavity axis L and any cavity of blade non-intersect.Profile I 8 is used for detecting 701,702 cavities of blade, and profile II 9 is used for detecting the 703-708 cavity of blade.
Detection method of the present invention:
1) blade inner-cavity structure, cavity distribution situation is determined.The core used according to blade and blade transverse cross sectional part, determine structure and the distribution of blade interior cavity.
2) blade residual core radiological survey X best orientation is determined.Choose typical blade, according to the distribution of blade interior cavity, enable blade bore passages parallel with beam.Due to blade interior complex structure, multiple azimuth distribution is needed to carry out guaranteeing that all cavities obtain best transillumination angle.
3) best orientation determined according to above step and blade tenon profile design make clamping and positioning device.This device can guarantee that whole cavity is parallel with the beam of vertical incidence in twice location, and imaging effect is good, and image contrast is high, the image do not interfered with each other.Locator meams adopts frock bearing profile and detection platform angle fixed form, the locating piece fixture that clamping form goes out according to blade tenon profile design, bearing profile is angled with locating piece fixture as required ensures that blade interior cavity is parallel with beam.
In use, the present invention is placed on the below of X-ray machine X, namely in effective transillumination district, is contained between locating piece I 2 and locating piece II 3 by blade 7, and is undertaken spacing by register pin 4, prevent landing.First the profile I 8 of bearing 1 is positioned in detection platform down, location profile I 8 according to the distribution of blade leading edge cavity and bearing 1 selects constant bearing, make blade leading edge cavity longitudinal surface parallel with beam, carry out sensitivity of film, the each cavity of blade inner chamber can be obtained independently project clearly on egative film, realize the inspection to blade leading edge inner chamber quality.Again the profile II 9 of bearing 1 is positioned in detection platform down, location profile II 9 according to the distribution of blade leading edge cavity and bearing 1 selects constant bearing, make blade leading edge cavity longitudinally parallel with beam, carry out sensitivity of film, the each cavity of blade inner chamber can be obtained independently project clearly on egative film, realize the inspection to other inner chamber quality of blade.By the detection of twice different directions, realize the inspection of all inner chamber quality of whole blade.

Claims (2)

1. one kind for deep camber hollow blade ray detection locating device, it is characterized in that: comprise bearing, locating piece and spacer pin, described locating piece is two, bare terminal end is symmetrically placed on bearing, described bearing has the profile of two different angles, one end in bearing profile angled end between two locating pieces is provided with spacer pin, and the clamping end face of two locating pieces coordinates with blade tenon and connects.
2. as claimed in claim 1 for deep camber hollow blade ray detection locating device, it is characterized in that: described two profiles and blade cavity axis are parallel respectively, the profile vertical plane containing blade cavity axis and blade cavity non-intersect.
CN201410629652.1A 2014-11-11 2014-11-11 One kind is used for deep camber hollow blade ray detection positioner Expired - Fee Related CN104359927B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410629652.1A CN104359927B (en) 2014-11-11 2014-11-11 One kind is used for deep camber hollow blade ray detection positioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410629652.1A CN104359927B (en) 2014-11-11 2014-11-11 One kind is used for deep camber hollow blade ray detection positioner

Publications (2)

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CN104359927A true CN104359927A (en) 2015-02-18
CN104359927B CN104359927B (en) 2017-11-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109613027A (en) * 2018-11-29 2019-04-12 中国航发沈阳黎明航空发动机有限责任公司 To the process unit and method of turbo blade leading edge air film hole X-ray detection

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936927A (en) * 2009-06-30 2011-01-05 西门子公司 Be used to check the method for blade
US20110038457A1 (en) * 2009-02-23 2011-02-17 X-Ray Optical Systems, Inc. X-ray diffraction apparatus and technique for measuring grain orientation using x-ray focusing optic
US20130136225A1 (en) * 2011-11-30 2013-05-30 Derek J. Michaels Component aperture location using computed tomography
CN203479218U (en) * 2013-10-11 2014-03-12 西安航空动力股份有限公司 Fixed point width inspection device for dovetail-shaped blade tenon
CN203542115U (en) * 2013-11-21 2014-04-16 四川成发航空科技股份有限公司 Universal clamp for machining molded line of blade

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110038457A1 (en) * 2009-02-23 2011-02-17 X-Ray Optical Systems, Inc. X-ray diffraction apparatus and technique for measuring grain orientation using x-ray focusing optic
CN101936927A (en) * 2009-06-30 2011-01-05 西门子公司 Be used to check the method for blade
US20130136225A1 (en) * 2011-11-30 2013-05-30 Derek J. Michaels Component aperture location using computed tomography
CN203479218U (en) * 2013-10-11 2014-03-12 西安航空动力股份有限公司 Fixed point width inspection device for dovetail-shaped blade tenon
CN203542115U (en) * 2013-11-21 2014-04-16 四川成发航空科技股份有限公司 Universal clamp for machining molded line of blade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109613027A (en) * 2018-11-29 2019-04-12 中国航发沈阳黎明航空发动机有限责任公司 To the process unit and method of turbo blade leading edge air film hole X-ray detection

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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6

Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company

Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6

Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171128

Termination date: 20201111