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Method for selecting longitudinal mounting position of split casing

A technology of longitudinally installing the edge and opening the case, which is applied in the direction of measuring devices, metal processing machinery parts, measuring/indicating equipment, etc., which can solve the problems of unguaranteed accuracy of parts, difficulty in controlling part deformation, inconsistent deformation of parts, etc. To achieve the effect of ensuring accuracy, controlling deformation and reducing scrap

Active Publication Date: 2015-02-18
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deformation of parts after cutting is inconsistent and irregular; it is difficult to control the deformation of parts, and the accuracy of parts cannot be guaranteed, resulting in a high scrap rate of parts

Method used

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  • Method for selecting longitudinal mounting position of split casing
  • Method for selecting longitudinal mounting position of split casing
  • Method for selecting longitudinal mounting position of split casing

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] A method for selecting the position of the longitudinal installation side of the opening case, comprising the following steps:

[0018] Step 1: Determining the stress measurement point 1 of the ring blank 4;

[0019] According to the shape characteristics of the ring blank 4, the stress measurement points 1 of the present embodiment are respectively arranged at 16 places along the inner and outer circumferential surfaces of the ring blank 4, and are evenly distributed along the circumferential direction, as figure 1 shown;

[0020] Step 2: Use the blind hole method to measure the stress at the stress measurement point 1 determined in Step 1;

[0021] Use punching equipment, stress strain gauges and stress measuring instruments to measure stress;

[0022] Step 3: Select the point 2 with the maximum stress value as the positio...

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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

technical field [0001] The invention belongs to the technical field of aero-engine manufacturing, and relates to a method for selecting a cutting position of a part, in particular to a method for selecting the position of a longitudinal installation edge of a casing. Background technique [0002] At present, there is no basis for selecting the cutting position when cutting the open box longitudinally, and the method of cutting at any position is adopted. After cutting, the deformation of the parts is inconsistent and irregular; it is difficult to control the deformation of the parts, and the accuracy of the parts cannot be guaranteed, resulting in a high scrap rate of the parts. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention provides a method for selecting the position of the longitudinal mounting edge of the opening case, which can reduce the scrapping of parts, control the deformation of parts, and ensure the ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/00B23Q17/22
Inventor 赵明杨印权张川何岚王超
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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