六轴数控蜗杆砂轮磨齿机磨削面齿轮的方法

发布时间：2018-04-25 04:43

本文选题：面齿轮 + 蜗杆砂轮　；参考：《机械工程学报》2015年11期

【摘要】：建立六轴数控圆柱齿轮蜗杆砂轮磨齿机磨削面齿轮的理论模型。提出以初始设计蜗杆砂轮轴截面齿形为基本参数,并考虑齿廓抛物线修形来设计金刚滚轮,再用于修整椭球式蜗杆砂轮的方法。利用双参数啮合方程建立了面齿轮磨齿加工的齿面方程。齿面磨削仿真及轮齿接触分析表明,直接以蜗杆砂轮轴截面齿形作为金刚滚轮齿廓来修整砂轮,所磨削得到的面齿轮齿面压力角偏小,且传动误差为不连续的上凹形曲线。当给滚轮以抛物线修形设计之后,所磨削的面齿轮齿面偏差基本为负值,传动误差曲线为良好的连续上凸式抛物线形。承载接触分析表明新的设计可以减轻齿顶边缘接触,减小冲击振动。数值算例表明,采用该方法磨削加工的面齿轮可以获得较高的精度和良好的啮合性能,并给出了试验验证。
[Abstract]:The theoretical model of grinding surface gear with six axis NC cylindrical gear worm grinding wheel grinding machine is established. This paper presents a method to design the diamond roller by taking the profile of the axial section of the worm grinding wheel as the basic parameter and considering the tooth profile parabola to be used to repair the ellipsoidal worm wheel. The tooth surface equation of surface gear grinding is established by using two parameter meshing equation. The simulation of tooth surface grinding and gear tooth contact analysis show that the tooth profile of worm grinding wheel shaft is directly used as the tooth profile of diamond hobbing wheel to repair the grinding wheel, and the tooth surface pressure angle of the surface gear is small and the transmission error is discontinuous upper-concave curve. When the roller is designed with parabola, the tooth surface deviation of the grinding surface gear is basically negative, and the transmission error curve is a continuous convex parabola shape. The load contact analysis shows that the new design can reduce the tooth top edge contact and impact vibration. The numerical example shows that the surface gear grinding with this method can obtain high precision and good meshing performance, and the experimental results are given.
【作者单位】：西北工业大学机电学院;
【基金】：国家自然科学基金(51105307,51075328) 陕西省自然科学基金(2014JM7242) 高等学校学科创新引智计划(B13044)资助项目
【分类号】：TG616

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