Datum transformation fixture and datum transformation method for guide blades

A technology of guide vane and reference conversion, which is applied to rotors, kitchen utensils, heat exchange equipment, etc., can solve problems such as scrapping and out-of-tolerance, and achieve the effect of ensuring pouring accuracy and improving processing pass rate

Active Publication Date: 2016-02-24
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method mainly solves the out-of-tolerance and scrapping problems caused by the direct use of mechanical clamping exhaust edge R in the existing process method

Method used

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  • Datum transformation fixture and datum transformation method for guide blades
  • Datum transformation fixture and datum transformation method for guide blades
  • Datum transformation fixture and datum transformation method for guide blades

Examples

Experimental program
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Embodiment 1

[0046] In this embodiment, a three-unit cast low-guide vane is taken as an example, and the wool positioning points are A1, A2, A3, B4, B5, F6, and F7, such as Figure 10 shown. Among them, the positioning point A1 is the positioning point where the basin moves toward the first blade close to the upper mounting plate exhaust side to the R exhaust side, and the positioning point A2 is the basin moving toward the first blade close to the upper mounting plate exhaust side to transfer the R exhaust side Side positioning point, positioning point A3 is the basin to the second blade close to the exhaust side of the lower mounting plate to transfer to R exhaust side positioning point, positioning point B4 is the basin to the second blade close to the upper mounting plate exhaust side to transfer to R The positioning point on the side of the pot, the positioning point B5 is the positioning point on the side of the basin where the pot is connected to the second blade close to the exhaus...

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PUM

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Abstract

The invention discloses a datum transformation fixture and a datum transformation method for guide blades, and belongs to the technical field of aero-engine blade manufacturing. The fixture comprises a bottom plate, wherein square box location blocks, a square box press plate mechanism and a square box compaction block mechanism are arranged on the upper part of the bottom plate, and a square box is installed on the square box location blocks; blade location blocks, movable blade location pins, a blade press plate mechanism and a blade compaction block mechanism are further arranged on the upper part of the bottom plate, and the blade location blocks and the movable blade location pins are corresponding to guide blade blank location points; and a left baffle and a right baffle are arranged at blade installation ports at the two sides of the square box. The method comprises the following steps: rotating a second movable handle, and enabling the first location pin and the second location pin to move towards a centre; installing the guide blades in the square box, and enabling an exhaust side of each guide blade to be downward and enabling an intake side of each guide blade to be upward; installing the square box and the guide blades, compacting the square box, locating the guide blades, compacting the guide blades, and installing upper baffles of the left baffle and the right baffle onto the intake sides of the guide blades; and pouring a low-melting-point alloy, and detaching parts.

Description

technical field [0001] The invention belongs to the technical field of manufacturing aeroengine blades, and in particular relates to a guide vane reference conversion fixture and a reference conversion method. Background technique [0002] In the manufacturing process of aero-engine blades, the blade mounting plate and the blade body are generally guaranteed by free casting. With the development of guide vane design technology, the structure of multiple sets of guide vanes has become the mainstream of design. In order to ensure the exhaust area of ​​the blades, the design positioning point is often set on the exhaust edge R. Before the subsequent machining process starts, the airfoil positioning points must first be transferred to other machining surfaces. [0003] In the prior art, the air exhaust edge of the blade body and the inner runner surfaces of the upper and lower mounting plates are simultaneously positioned, and rigid fixtures are used to directly contact the pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/00
Inventor 郭彦东贾爽付裕谢波刘鹏
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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