精密成形磨削工艺参数的仿真研究

 李志伟1,张沭玥2

(1.四川省机械研究设计院,四川 成都 610063;2.西南交通大学 机械工程学院,四川 成都 610031)
摘要:为研究精密成型磨削过程中工艺参数的选择,利用CAD软件建立摆线齿轮成型磨削三维模型,在Deform-3D有限元软件中设置相应仿真参数,仿真分析砂轮线速度、摆线轮进给速度对磨削后表面粗糙度、磨削力、材料去除量及砂轮磨损量的影响。结果表明:齿轮表面粗糙度随砂轮线速度的增加而减小,随摆线轮进给速度的增加而增加,随打磨次数的增加而减小;在进入成形磨满磨过程后,法向力峰值将会基本稳定在切向力峰值的三倍;随着进给速度增加,磨耗比存在波浪形起伏的变化。
关键词:成形磨;材料去除;表面粗糙度;磨削力;磨耗比
中图分类号:TP391 文献标志码:A doi:10.3969/j.issn.1006-0316.2018.10.005
文章编号:1006-0316 (2018) 10-0020-08
Simulation Study on Simulation Precision Forming Grinding Process Parameters
LI Zhiwei1,ZHANG Shuyue2
( 1.Sichuan Machinery Research and Design Institute, Chengdu 610063, China; 2.Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China )
Abstract:In order to study the selection of process parameters in precision forming grinding, a three- dimensional model of cycloidal gear forming grinding is established by using CAD software. The corresponding simulation parameters are set up in DEFORM-3D finite element software. The effects of grinding wheel linear speed and cycloidal wheel feed speed on the surface roughness and grinding force after grinding are simulated and analyzed. The influence of material removal and wheel wear is also discussed. The results show that the surface roughness of the gear decreases with the increase of the linear velocity of the grinding wheel, increases with the increase of the feed velocity of the cycloid wheel, and decreases with the increase of the grinding times. After entering the full grinding process, the peak value of normal force will be basically stabilized at three times the peak value of tangential force. With the increase of feed speed, the variation of the grinding ratio is undulating.
Key words:forming grinding;material removal;surface roughness;grinding force;grinding ratio
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收稿日期:2018-09-10
作者简介:李志伟(1971-),男,四川成都人,本科,副总工程师,主要研究方向为智能装备、机械传动、液压等。
 

 

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