|
模具凸棱升高斜率对楔横轧蜗杆轴齿形的影响
|
|
英文标题：Effect of die convex edge's slope raise on teeth's shape of worn shafts formed by cross wedge rolling |
|
作者：李秀玲 刘晋平 闫华军 |
|
单位：北京科技大学机械工程学院 |
|
关键词：楔横轧 蜗杆轴 有限元 |
|
分类号：TG333.17 |
|
出版年,卷(期):页码：2009,34(1):73-75 |
|
摘要：
|
|
利用DEFORM-3D有限元软件模拟楔横轧轧制蜗杆轴的成形过程,使用不同的模具凸棱升高斜率可以得到5种模拟结果。对轧件各齿高和螺距进行测量,计算其相对误差,利用Origin软件可绘出齿高和螺距的相对误差图。分析表明,选择合适的凸棱升高斜率可以改善轧件的成形效果,斜率过大会增加轧件的瞬时误差,斜率过小,加工误差积累严重,也不容易成形完整的齿形。
|
|
The course of cross wedge rolling forming of the worn shafts was simulated by means of FEM software-DEFORM-3D.For different die convex edge's slope raises,there were five different results of the simulation.Each tooth's height and screw-pitch of the rolled part were measured and their relative errors were gained by calculation,the charts of the relative errors were drawn by means of Origin.The comparison shows that the suitable the die convex edge's slope raise can improve the forming effect.If the slope is too large,the rolled part's instantaneous error will increase and if the slope is too small,there will be a bad error accumulation in the forming process and it is also difficult to forming integrated tooth's shape.
|
|
基金项目：
|
|
国家自然科学基金资助重点项目(50435010,50675019)
|
|
作者简介：
|
|
|
|
参考文献：
|
[1]陈宏钧.车削蜗杆[J].机械工人,2000,(5):45-47.
[2]温隆生,丁楠.旋风铣削螺纹在蜗杆加工中的应用[J].机械工程师,2003,(10):77-77.
[3]王晓军,陈京平.大切深车削蜗杆工艺技术应用[J].煤矿机械,2005,(8):78-80.
[4]胡正寰,张康生,王宝雨,等.楔横轧零件成形技术与模拟仿真[M].北京:冶金工业出版社,2004.
[5]胡正寰,张康生,王宝雨,等.楔横轧理论与应用[M].北京:冶金工业出版社,1996.
[6]康永强.斜轧零件基本单元成形机理研究[D].北京:北京科技大学,2003.
[7]王全先,王存源.大螺距螺旋表面零件楔横轧孔型设计[J].锻压技术,2000,25(3):39-41.
[8]闫华军,刘晋平,樊旭平.楔横轧轧制螺纹轴应力状态研究[J].锻压技术,2008,33(3):60-63.
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
