Combined closed cavity vibration type barrel finishing device for blade surface machining and method thereof

A surface processing and processing device technology, which is applied in the field of combined closed-cavity vibration-type barreling and finishing processing devices, can solve the problems of difficult to meet surface accuracy, inconsistent surface roughness, low processing efficiency, etc., and achieve improved performance and Effect of life, reduction of surface roughness value, improvement of surface integrity

Active Publication Date: 2020-02-28
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing blades mainly rely on manual polishing and abrasive belt polishing to improve the surface quality, but manual polishing is prone to problems such as uneven removal and inconsistent surface roughness, which makes it difficult to meet the requirements of surface accuracy, and the environment is harsh and the processing efficiency is low; The abrasive belt or polishing wheel in belt polishing is easy to wear, and it is difficult to ensure the consistency of blade parts processing
At home and abroad, it is also proposed to use abrasive flow finishing process to polish the blade, but there are still difficulties in fixture design, high cost, and it is easy to cause blade deformation and uneven thickness.
Taiyuan University of Technology proposed a method of rolling and finishing the blade surface using distributed protection measures (ZL201510433640.6), which can reduce the surface roughness of the blade without destroying the original shape and dimensional accuracy of the blade. Improve the surface texture, but there are still shortcomings of good leaf back processing effect and poor leaf pot processing effect

Method used

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  • Combined closed cavity vibration type barrel finishing device for blade surface machining and method thereof
  • Combined closed cavity vibration type barrel finishing device for blade surface machining and method thereof
  • Combined closed cavity vibration type barrel finishing device for blade surface machining and method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] This embodiment provides a combined closed-cavity vibration-type barreling and finishing device for blade surface processing, including a vibration platform 1 (manufactured by Suzhou Sushi Test Instrument Co., Ltd. DC-5000-50), a bracket 12, and a support shaft 13. Bearing 14, speed regulating motor 2, small pulley 3, flat belt 4, large pulley 5, rotary platform 6 and processing components; vibration platform 1 is provided with bracket 12, and support shaft 13 is installed on bracket 12 through bearing 14 On the support shaft 13, the large pulley 5 and the rotary platform 6 are fixedly connected; the small pulley 3 is connected with the speed regulating motor 2, and rotates with the speed regulating motor 2; the small pulley 3 and the large pulley 5 are connected by a flat The belt 4 is connected; multiple processing components are fixed on the rotary platform 6 along the circumferential direction; the processing components include a container, a processing medium 8 and ...

Embodiment 2

[0045]This embodiment provides a processing method using the device described in Embodiment 1, the processed blade 9 is a rolled blade, comprising the following steps,

[0046] S1, fixing the processed blade 9 on the fixture 11;

[0047] S2, adding into the container body 7 the processing medium 8 containing 80% tumbling grinding blocks and a small amount of liquid medium, and closing the container;

[0048] S3, fixing the above-mentioned installed processing components on the rotary platform 6;

[0049] S4, repeat the above steps S1-S3 until all the components to be processed are fixed on the rotary platform 6 .

[0050] S5, adjust the speed of the speed regulating motor 2, so that the speed of the rotary platform 6 is 30r / min;

[0051] S6, adjusting the amplitude and frequency of the vibration platform 1; the amplitude is 3 mm, and the frequency is 100 Hz;

[0052] S7, start the speed regulating motor 2 and the vibration platform 1, the container rotates with the speed re...

Embodiment 3

[0059] This embodiment provides a processing method using the device described in Embodiment 1, the processed blade 9 is a superalloy blade, comprising the following steps,

[0060] S1, fixing the processed blade 9 on the fixture 11;

[0061] S2, adding into the container body 7 the processing medium 8 containing 60% tumbling grinding block and a small amount of liquid medium, and closing the container;

[0062] S3, fixing the above-mentioned installed processing components on the rotary platform 6;

[0063] S4, repeating the above S1-S3 steps, until all the components to be processed are fixed on the rotary platform 6;

[0064] S5, adjust the speed of the speed regulating motor 2, so that the speed of the rotary platform 6 is 15r / min;

[0065] S6, adjusting the amplitude and frequency of the vibration platform 1; the amplitude is 5 mm, and the frequency is 30 Hz;

[0066] S7, start the speed regulating motor 2 and the vibration platform 1, the container rotates with the sp...

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Abstract

The invention provides a combined closed cavity vibration type barrel finishing device for blade surface machining and a method thereof, and belongs to the technical field of blade surface finishing machining. A machined blade is fixed to the interior of a container of a special closed cavity matched with the blade shape to form a combined closed cavity; a certain amount of tumbling chip abrasivesand liquid mediums prefill the closed cavity; the tumbling chip abrasives and the machined blade which are sealed in the container rotate at a low speed along with the container, and simultaneously vibrate at the amplitude A and the frequency f, and the tumbling chip abrasives prefilling the container and each position of the machined surface of the blade generate certain relative motion and acting force, so that high-efficiency and consistent finishing machining of the high-performance blade is achieved through reasonable regulation and control of technological parameters, and the forming, and repairing and batch production requirements of the high-performance blade are met.

Description

technical field [0001] The invention belongs to the technical field of blade surface finishing, and in particular relates to a combined closed-cavity vibration-type rolling finishing device and method for blade surface processing. Background technique [0002] Aeroengines are complex thermodynamic machines that work reliably for a long time in harsh environments of high temperature, high pressure, and high speed rotation. They are typical knowledge- and technology-intensive products. As a core high-performance part of an aero-engine, the blade is the top priority in the manufacture of an aero-engine, accounting for about 40% of the workload, and its surface quality directly affects the service performance and life of the engine. The existing blades mainly rely on manual polishing and abrasive belt polishing to improve the surface quality, but manual polishing is prone to problems such as uneven removal and inconsistent surface roughness, which makes it difficult to meet the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B31/00B24B31/027B24B31/12B24B1/04
CPCB24B1/04B24B31/003B24B31/0224B24B31/027B24B31/12
Inventor 李秀红李文辉杨胜强武锋锋张演师世豪郝玉鹏吴远超
Owner TAIYUAN UNIV OF TECH
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