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A guide vane reference conversion fixture and reference conversion method

A technology of guide vane and reference conversion, which is applied in the direction of rotors, kitchen utensils, household utensils, etc., can solve problems such as out-of-tolerance, scrapping, etc., and achieve the effect of ensuring casting accuracy and improving processing pass rate

Active Publication Date: 2017-10-24
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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  • A guide vane reference conversion fixture and reference conversion method
  • A guide vane reference conversion fixture and reference conversion method
  • A guide vane reference conversion fixture and reference conversion method

Examples

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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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Abstract

The invention discloses a guide vane datum conversion fixture and a datum conversion method, which belong to the technical field of aeroengine blade manufacturing. Fixture: including the bottom plate, on the upper part of the bottom plate are provided with a square box positioning block, a square box pressing plate mechanism and a square box pressing block mechanism, the square box is installed on the square box positioning block; on the upper part of the bottom plate are also provided with blade positioning blocks, movable The blade positioning pin, the blade pressing plate mechanism and the blade pressing block mechanism, the blade positioning block and the movable blade positioning pin correspond to the positioning point of the guide blade wool material; there are left baffles and right bezel. Method: Turn the second movable handle, the first positioning pin and the second positioning pin move to the center; put the guide vane into the square box, make the exhaust side of the guide vane face down and the air intake side face up; install the square box and guide Blades, press the square box, position the guide vanes, press the guide vanes, install the upper baffles of the left baffle and the right baffle on the inlet side of the guide vanes; pour low melting point alloys, and disassemble the 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 Patents(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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