精密成形磨削工艺参数的仿真研究

Simulation Study on Simulation Precision Forming Grinding Process Parameters

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。

In order to study the selection of process parameters in precision forming grinding, a three- dimensionalmodel of cycloidal gear forming grinding is established by using CAD software. The corresponding simtflationparameters are set up in DEFORM-3D finite element software. The effects of grinding wheel linear speed andcycloidal wheel feed speed on the surface roughness and grinding force after grinding are simtflated and analyzed.The influence of material removal and wheel wear is also discussed. The results show that the surface roughnessof the gear decreases with the increase of the linear velocity of the grinding wheel, increases with the increase ofthe feed velocity of the cycloid wheel, and decreases with the increase of the grinding times. After entering thefull grinding process, the peak value of normal force will be basically stabilized at three times the peak value oftangential force. With the increase of feed speed, the variation of the grinding ratio is undtflating.