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Method for quickly preparing double-mounting plate blade

A technology of double mounting plates and mounting plates, which is applied in the field of aeroengine compressor rotors and stator blades, can solve problems such as inability to realize precision milling, unstable process control, and poor blade shape consistency, shortening the development cycle and reducing fixture manufacturing The effect of increasing the difficulty and pass rate

Inactive Publication Date: 2018-05-04
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of complex process, difficult clamping, unstable process control, precision milling, poor consistency of blade shape, large quality fluctuation, difficult to guarantee accuracy, lengthy process and low quality efficiency in machining blades with complex structure of compressors. etc., the present invention provides a method for rapidly preparing double mounting plate blades

Method used

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  • Method for quickly preparing double-mounting plate blade
  • Method for quickly preparing double-mounting plate blade
  • Method for quickly preparing double-mounting plate blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for quickly preparing double mounting plate blades, characterized in that the process is:

[0033] 1) Process the upper and lower ends of the process table: process a process table at the upper and lower ends of the blade blank, the upper process table is connected to the blade tenon or the outer side of the upper mounting plate, and the lower process table is connected to the outer side of the lower mounting plate of the blade; The process table at both ends is designed as a cuboid structure, and the size is length, width and height: 15mm×10mm×15mm;

[0034] 2) The clamping structure is designed based on the craft table at the upper and lower ends;

[0035] 3) Rough / finish milling of the mounting plate and the airfoil profile based on the upper and lower ends of the process table;

[0036] 4) Polishing the airfoil surface;

[0037] 5), wire cutting removes the upper and lower ends of the blade (can be removed by means of removal), and then uses the conventio...

Embodiment 2

[0040] The difference from Embodiment 1 is that the upper and lower process tables are designed as cylindrical structures, and the dimensions are designed as follows: diameter and height are Φ10mm×15mm.

Embodiment 3

[0042] The difference from Example 1 is that the upper and lower ends of the process table are designed as a cuboid structure, and the size is 25mm x 15mm x 25mm in length, width and height; after step 3) rough milling and heat treatment for stress relief, the process table is deformed and arranged The reference process of repairing the craft table is established to ensure the accuracy of the precision milling and clamping positioning.

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Abstract

The invention provides a method for quickly preparing a double-mounting plate blade. The method comprises the specific technological processes of (1) processing upper and lower technological tables: one technological table is processed at each of the upper and lower ends of a blade blank, the upper technological table is connected to a blade tenon or the outer side surface of an upper mounting plate, and the lower technological table is connected with the outer side surface of a lower mounting plate of the blade; (2) designing a clamping structure with the upper and lower technological tablesadopted as a datum; (3) carrying out rough / finish milling on the mounting plates and a blade body profile with the upper and lower technological tables adopted as the datum; (4) polishing the blade body profile; and (5) removing the upper and lower technological tables of the blade. According to the method, the problems that during conventional machining for complex-structure blades of an air compressor, the technology is complex, clamping is difficult, precision is hard to guarantee, procedures are long, quality efficiency is low, and the like, are solved.

Description

technical field [0001] The invention relates to aeroengine compressor rotors and stator blades, and in particular provides a method for quickly preparing double mounting plate blades. Background technique [0002] The compressor rotor and stator blades have complex structures, and the tenons or upper and lower mounting plates are mostly arc-shaped surfaces. The curvature of the blade surface varies greatly, and the torque generated during processing is relatively large. Dimensional and geometric tolerances require high accuracy to ensure that the assembly parts have accurate positional matching accuracy requirements and meet the design requirements. [0003] The traditional method of manufacturing blades with upper and lower mounting plates is as follows: die forging is used as the blank, and six points on the airfoil profile of the die forging are used as the blank reference, and the machine uses the blank reference to position and pour low-melting point alloy to convert it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/02
CPCB23P15/02
Inventor 吴志新吴伟东李美荣梁巧云韩巍
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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