Design of pneumatic wheel with progressive mesh abrasives

JI Shi-ming; WANG Cheng-hu; JIN Ming-sheng; WEI Wei; ZENG Xi

doi:10.3788/OPE.20162406.1365

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Design of pneumatic wheel with progressive mesh abrasives

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- Design of pneumatic wheel with progressive mesh abrasives
- Optics and Precision Engineering Vol. 24, Issue 6, Pages: 1365-1372(2016)
- 作者机构：
  
  浙江工业大学机械工程学院,浙江杭州,310014
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20162406.1365
  CLC： TH117;TG665
- Received：24 December 2015，
  
  Revised：10 January 2016，
  
  Published：25 June 2016
- 稿件说明：
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计时鸣, 王成湖, 金明生等. 渐进式黏磨层气压砂轮的设计[J]. 光学精密工程, 2016,24(6): 1365-1372

JI Shi-ming, WANG Cheng-hu, JIN Ming-sheng etc. Design of pneumatic wheel with progressive mesh abrasives[J]. Editorial Office of Optics and Precision Engineering, 2016,24(6): 1365-1372
计时鸣, 王成湖, 金明生等. 渐进式黏磨层气压砂轮的设计[J]. 光学精密工程, 2016,24(6): 1365-1372 DOI： 10.3788/OPE.20162406.1365.

JI Shi-ming, WANG Cheng-hu, JIN Ming-sheng etc. Design of pneumatic wheel with progressive mesh abrasives[J]. Editorial Office of Optics and Precision Engineering, 2016,24(6): 1365-1372 DOI： 10.3788/OPE.20162406.1365.

摘要

针对传统气压砂轮存在磨粒容易脱落，加工效率低等问题，提出了制备渐进式黏磨层气压砂轮的方法。该方法基于分层渐进抛光的思想，在砂轮头表面涂覆多层不同厚度和目数的黏磨层。利用磨粒脱落量及表面加工质量实验确定不同黏磨层光整加工所需时间及厚度，制备了渐进式黏磨层气压砂轮，研究了砂轮头的几何精度和加工工件的表面质量。结果表明：渐进式黏磨层气压砂轮不同黏磨层磨粒目数分别为180#、120#、80#，其厚度分别为2 mm、0.21 mm、0.3mm，各层厚度均符合设计要求，误差在5%以内。在加工过程中，外层黏磨层能在理想时间逐层有效脱落。当下压量为2 mm、磨削转速为1 250 r／min时，渐进式黏磨层气压砂轮能够完成初期光整加工且效率提高19%以上。实验显示：提出的方法大幅提高了激光强化表面光整加工效率和自动化程度。

Abstract

A method to process pneumatic wheels with progressive mesh abrasives is proposed to overcome the shortcomings of traditional pneumatic wheels in abrasive grains fallen off easily and lower processing efficiency. On the basis of the idea of different abrasive layers layered progressive polishing

this method coats mesh abrasive layers with different thicknesses and mesh numbers on the surface of a pneumatic wheel. Then

it makes the tests of abrasive dropping amount and processing surface-quality to determine the grinding time and thicknesses of different abrasive layers. Finally

it processes pneumatic wheels with progressive mesh abrasives and researches their geometric precisions and the surface quality of processed workpieces. The experimental test shows that the optimum abrasive meshes of different layers should be 180#

120# and 80# with the thicknesses of 2 mm

0.21 mm and 0.3 mm respectively. Moreover

the thickness of each layer prepared meets the design requirement

and the error is within 5%. In processing

the outer abrasive layer wears off effectively layer by layer at the deal time. When the press amount is 2 mm and the rotating speed is 1 250 r/min

the pneumatic wheels implement the preliminary processing and the efficiency has improved more than 19%. These results demonstrate that the processing method improves significantly efficiency and automation by pneumatic wheels with progressive mesh abrasives.

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references

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