基于四轴数控机床面齿轮磨削方法  

Grinding method for face gear based on four-axis CNC machine tool

作　　者：彭先龙[1] 赵朋辉 胡锡文 徐磊 阚琛 PENG Xianlong;ZHAO Penghui;HU Xiwen;XU Lei;KAN Chen(College of Mechanical Engineering,Xi’an University of Science and Technology,Xi’an 710054,China;Beijing Nuclear Chemical Research and Design Institute,China Nuclear Power Engineering Company Limited,Beijing 100840,China)

机构地区：[1]西安科技大学机械工程学院,西安710054 [2]中国核电工程有限公司北京核化工研究设计院,北京100840

出　　处：《航空动力学报》2021年第5期1113-1120,共8页Journal of Aerospace Power

基　　金：陕西省自然科学基础研究计划项目(2020JM-521)。

摘　　要：为了制造出高精度硬齿面面齿轮,提高刀具的通用性并简化机床结构,提出一种基于四轴数控机床和盘形砂轮多线包络磨削面齿轮的加工方法。设计顶刃带有圆弧的盘形砂轮对插齿刀齿面进行仿形。建立盘形砂轮磨削面齿轮的数学模型,规划盘形砂轮的刀位轨迹。通过数值模拟方法探究刀具的顶刃圆弧半径和转矩角对齿面包络残差的影响规律。结合选用的四轴数控机床结构,推导盘形砂轮磨削面齿轮的数控运动规律,并在VERICUT软件中进行仿真加工。将仿真模型与理论齿面进行对比分析,得到齿面偏差的最大值为-4.3~4.7μm,结果验证了所提出加工方法的正确性,也证明了根据齿面包络残差的影响规律选用合适的刀具加工参数,可以保证面齿轮齿面精度的同时提高加工效率。A machining method based on four-axis computer numerical control machine tool and multi-line envelope grinding face gear with grinding disk was proposed to manufacture the hardened face gear with high precision, increase the versatility of tools and simplify the structure of machine tools. The grinding disk with a circular arc on the top edge was designed to profile the tooth surface of the shaper. The mathematical model of face gear grinded by the grinding disk was established and the tool path of the grinding disk was planned. The influences of cutting edge arc radius and torque angle on tooth envelope residual were investigated by numerical simulation. Combining with the selected structure of four-axis computer numerical control machine tool, the computer numerical control motion rule of the grinding disk manufacturing face gear was derived and the machining simulation was performed in VERICUT. The simulation model was compared with the theoretical tooth surface, the maximum value of tooth surface deviation was-4.3-4.7 μm, and the result can confirm the correctness of the proposed machining method and prove that the appropriate cutter parameters adopted according to the influence law of tooth envelope residual can ensure the accuracy of tooth surface and improve the machining efficiency.

关 键 词：面齿轮 盘形砂轮 刀位轨迹 包络残差 数控运动规律 仿真加工 

分 类 号：V261.27[航空宇航科学与技术—航空宇航制造工程] TH132.41[机械工程—机械制造及自动化]