Integrated blade disk and blade tip curved surface numerical control grinding device and method

A kind of integral blisk and grinding technology, which is applied in the direction of grinding machine tool parts, abrasive surface adjustment device, grinding workpiece support, etc., can solve the problems that it is difficult to meet the processing requirements of the integral blisk blade tip surface and affect the performance of the engine. Achieve the effect of accurate and reliable grinding method, simple and convenient dressing, and reduced wear

Inactive Publication Date: 2015-04-22
CHINA GAS TURBINE ESTAB
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Problems solved by technology

The design requirement of the blade tip of the blisk is a curved surface, but due to the limitations of the existing equipment and technological level, the blade tip of the blisk in China is currently processed by straight sections or slopes instead, which affects the performance of the engine to a certain extent
It is difficult to realize the processing requirements of

Method used

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  • Integrated blade disk and blade tip curved surface numerical control grinding device and method
  • Integrated blade disk and blade tip curved surface numerical control grinding device and method
  • Integrated blade disk and blade tip curved surface numerical control grinding device and method

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings of the description, please refer to Figure 1~3 .

[0024] Such as figure 1 Shown is the overall blisk structure of a certain type of engine compressor rotor according to the embodiment of the present invention, and the tip of the blade is a curved surface. In order to meet the processing requirements of the curved surface of the blade tip, after analyzing and studying the structure and design technical conditions, the embodiment of the present invention chooses the grinding method to process the curved surface of the blade tip.

[0025] A CNC grinding device for the curved surface of the blade tip of the integral blisk, including a CNC end face cylindrical grinding machine, and a cubic boron nitride grinding wheel, a grinding fixture and a grinding wheel dressing device, wherein,

[0026] The cubic boron nitride grinding wheel (abbreviated as CBN grinding whe...

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Abstract

The invention relates to an integrated blade disk and blade tip curved surface numerical control grinding device which comprises a numerical control end face cylindrical grinder, a cubic boron nitride grinding wheel, a grinding fixture and a grinding wheel dressing device. Without changing functions of the numerical control grinder, the cubic boron nitride grinding wheel replaces an original corundum grinding wheel, the abrasion loss of the grinding wheel is reduced, a portion of the grinding wheel participating in grinding is dressed into a circular arc through the grinding wheel dressing device, an integrated blade disk and blade tip curved surface is grinded on the numerical control grinder, and machining quality of the integrated blade disk and blade tip curved surface is effectively improved. The invention further relates to an integrated blade disk and blade tip curved surface numerical control grinding method. By the aid of a point type grinding method, the grinding method is accurate and reliable, the grinding wheel is simply and conveniently dressed after abraded, production cost is low, and the grinding method is fine in universality and applicable to machining a blade tip curved surface similar to a single integrated blade disk and blade tip curved surface and an integrated blade disk rotor component.

Description

technical field [0001] The invention belongs to the technical field of cold processing in the field of aviation technology, and in particular relates to a device and method for numerically controlled grinding of curved surfaces of blade tips of integral blisks. Background technique [0002] The compressor rotor is the core component of the engine, and the matching clearance between the rotor blade tip and the casing has a great influence on the performance and safety of the engine. The design requirement of the blade tip of the blisk is a curved surface, but due to the limitations of the existing equipment and technological level, the blade tip of the blisk in China is currently processed by straight sections or slopes instead, which affects the performance of the engine to a certain extent . It is difficult to realize the processing requirements of the integral blisk tip curved surface with the existing equipment and current processing methods. In order to realize the proc...

Claims

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Application Information

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IPC IPC(8): B24B19/14B24B53/06B24B53/14B24B41/06B24B1/00
CPCB24B19/14B24B41/06B24B53/06B24B53/14
Inventor 王福东刘自成刘文武张为民杨振
Owner CHINA GAS TURBINE ESTAB
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