CN104359594A - Method for selecting longitudinal mounting position of split casing - Google Patents

Method for selecting longitudinal mounting position of split casing Download PDF

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Publication number
CN104359594A
CN104359594A CN201410627950.7A CN201410627950A CN104359594A CN 104359594 A CN104359594 A CN 104359594A CN 201410627950 A CN201410627950 A CN 201410627950A CN 104359594 A CN104359594 A CN 104359594A
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China
Prior art keywords
split casing
longitudinal mounting
stress
stress measurement
measurement point
Prior art date
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Granted
Application number
CN201410627950.7A
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Chinese (zh)
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CN104359594B (en
Inventor
赵明
杨印权
张川
何岚
王超
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
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Priority to CN201410627950.7A priority Critical patent/CN104359594B/en
Publication of CN104359594A publication Critical patent/CN104359594A/en
Application granted granted Critical
Publication of CN104359594B publication Critical patent/CN104359594B/en
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Abstract

The invention belongs to the technical field of manufacturing of aeroengines and relates to a part sectioning position selection method, in particular to a method for selecting a longitudinal mounting position of a split casing. The method includes the steps: step one, determining stress measurement points of an annular workblank; step two; subjecting the stress measurement points determined at the step one to stress measurement; step three, selecting the point highest in stress value as the longitudinal mounting position of the split casing. By adoption of the method for selecting the longitudinal mounting position of the split casing, scraps of parts can be reduced, deformation of the parts can be controlled, and precision of the parts can be guaranteed.

Description

The system of selection of the longitudinal mounting edge position of a kind of Split Casing
Technical field
The invention belongs to aeromotor manufacturing technology field, relate to a kind of system of selection of part slice location, particularly relate to the system of selection of the longitudinal mounting edge position of a kind of Split Casing.
Background technology
At present, the foundation not having slice location to select during Split Casing longitudinally cutting, adopts the method to optional position cutting.After cutting, part deformation amount is inconsistent, does not have rule; Be difficult to the distortion controlling part, element precision can not be guaranteed, and causes part rejection rate higher.
Summary of the invention
For prior art Problems existing, the invention provides a kind of reduce part the distortion of scrapping, controlling part, the system of selection of the longitudinal mounting edge position of Split Casing of precision that ensures part.
To achieve these goals, the present invention adopts following technical scheme, and the system of selection of the longitudinal mounting edge position of a kind of Split Casing, comprises the steps:
Step one: the stress measurement point determining annular blank;
Step 2: adopt Blind Hole Method to carry out stress measurement to the stress measurement point determined in step one;
Step 3: choose stress value maximum as the longitudinal mounting edge position of Split Casing.
The inside and outside circumferential surface of the annularly blank of the stress measurement point described in step one is uniformly distributed.
Beneficial effect of the present invention:
The system of selection of the longitudinal mounting edge position of Split Casing of the present invention, can reduce the distortion of scrapping, controlling part of part, ensure the precision of part.After which solving the longitudinal mounting edge cutting of annular Split Casing, the difficult problem that part deformation amount is large, generation is scrapped; Reach part deformation amount controlled, improve the object of part processing precision.
The present invention grasps the stress distribution of part by the mode of Blind Hole Method survey stress, chooses stress value maximum as the longitudinal mounting edge position (i.e. cutting aperture position) of Split Casing; Part stress redistribution after cutting, and after choosing the cutting of stress value maximum, part deformation amount is minimum.The present invention contributes to controlling homogeneity of product and improving single component precision in batch production.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of annular blank upper stress measurement point position;
Fig. 2 is the schematic diagram of stress value maximum (i.e. cutting aperture position);
Fig. 3 is the schematic diagram of the measurement point position of deflection;
In figure: 1-stress measurement point, 2-stress value maximum, the measurement point of 3-deflection, 4-annular blank.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
A system of selection for the longitudinal mounting edge position of Split Casing, comprises the steps:
Step one: the stress measurement point 1 determining annular blank 4;
According to the features of shape of annular blank 4, the inside and outside circumferential surface of the stress measurement point 1 of the present embodiment annularly blank 4 respectively arranges 16 places, and is uniformly distributed circumferentially, as shown in Figure 1;
Step 2: adopt Blind Hole Method to carry out stress measurement to the stress measurement point 1 determined in step one;
Punch device, ess-strain sheet and stress detector is utilized to carry out the measurement of stress;
Step 3: choose stress value maximum 2 as the longitudinal mounting edge position (i.e. cutting aperture position) of Split Casing, as shown in Figure 2.
Split Casing after cutting is verified through the measurement of deflection, and deflection is less, respond well.The measurement of described deflection is namely by the cylindrical of Split Casing after three coordinate measuring engine measurement cutting and the data of faying face.

Claims (2)

1. a system of selection for the longitudinal mounting edge position of Split Casing, is characterized in that, comprise the steps:
Step one: the stress measurement point determining annular blank;
Step 2: adopt Blind Hole Method to carry out stress measurement to the stress measurement point determined in step one;
Step 3: choose stress value maximum as the longitudinal mounting edge position of Split Casing.
2. the system of selection of the longitudinal mounting edge position of Split Casing according to claim 1, is characterized in that the inside and outside circumferential surface of the annularly blank of the stress measurement point described in step one is uniformly distributed.
CN201410627950.7A 2014-11-10 2014-11-10 A kind of system of selection of the longitudinally mounted side position of Split Casing Active CN104359594B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410627950.7A CN104359594B (en) 2014-11-10 2014-11-10 A kind of system of selection of the longitudinally mounted side position of Split Casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410627950.7A CN104359594B (en) 2014-11-10 2014-11-10 A kind of system of selection of the longitudinally mounted side position of Split Casing

Publications (2)

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CN104359594A true CN104359594A (en) 2015-02-18
CN104359594B CN104359594B (en) 2017-07-25

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Family Applications (1)

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CN201410627950.7A Active CN104359594B (en) 2014-11-10 2014-11-10 A kind of system of selection of the longitudinally mounted side position of Split Casing

Country Status (1)

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CN (1) CN104359594B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539506A (en) * 2009-03-24 2009-09-23 西安交通大学 Method for measuring welding residual stress
CN101900615A (en) * 2009-05-27 2010-12-01 中国石油天然气集团公司 Blind hole measurement method for value and distribution of residual stress of thick-wall and large-diameter welded steel pipe
CN102513803A (en) * 2011-12-03 2012-06-27 西安航空动力股份有限公司 Technical method for constructing reference surface of assembled folio cartridge receiver and special clamp
CN202305067U (en) * 2011-10-08 2012-07-04 宋威 Device for fixing and connecting resistance strain gauge in residual stress measurement by blind hole method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539506A (en) * 2009-03-24 2009-09-23 西安交通大学 Method for measuring welding residual stress
CN101900615A (en) * 2009-05-27 2010-12-01 中国石油天然气集团公司 Blind hole measurement method for value and distribution of residual stress of thick-wall and large-diameter welded steel pipe
CN202305067U (en) * 2011-10-08 2012-07-04 宋威 Device for fixing and connecting resistance strain gauge in residual stress measurement by blind hole method
CN102513803A (en) * 2011-12-03 2012-06-27 西安航空动力股份有限公司 Technical method for constructing reference surface of assembled folio cartridge receiver and special clamp

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘力力等: "盲孔法测定径向锻造身管表面残余应力方法研究", 《兵工学报》 *
董本涵等: "机匣安装边应力分析的混合法", 《航空发动机》 *

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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