基于CATIA的高精度滚齿加工仿真与精度验证  

SIMULATION AND ACCURACY VERIFICATION OF HIGH PRECISION GEAR HOBBING BASED ON CATIA

作　　者：何中原 汪中厚[1] 刘雷[2] 吴世青 HE ZhongYuan;WANG ZhongHou;LIU Lei;WU ShiQing(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;College of Mechanical&Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]上海理工大学机械工程学院,上海200093 [2]南京航空航天大学机电学院,南京210016

出　　处：《机械强度》2021年第6期1485-1491,共7页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(51075279);上海市科学技术委员会项目(19060502300);南京航空航天大学“直升机传动技术重点实验室”开放课题(HTL-0-19G04)资助。

摘　　要：现有滚齿加工仿真方法难以遵循实际加工参数,且未对仿真所获模型进行有效的齿面精度测量,因此无法为实际滚齿加工作出有效指导,为此提出一种高精度的滚齿加工仿真与精度验证方法。基于Catia设计平台,通过Catia内平移、旋转、布尔运算等命令结合二次开发功能,经提取包含主运动与展成运动特征的初步齿槽模型,后将初步齿槽模型与齿坯进行垂直进给运动的模拟切削,完成了高精度的滚齿加工仿真。通过建立标准齿面点集对仿真模型齿面进行精度测量,得到了仿真齿面的误差分布,且所得仿真模型中最高齿面精度误差在1μm以下,验证了滚齿加工仿真方法的正确性与仿真模型精确性。The existing gear hobbing simulation methods are difficult to follow the actual processing parameters, and the model obtained by the simulation does not measure the accuracy of the tooth surface. Therefore, they cannot provide effective guidance for the actual gear hobbing. Therefore, a high-precision gear hobbing is proposed. Simulation and accuracy verification methods. This method is based on the CATIA design platform, combined with the secondary development functions through commands such as translation, rotation, and Boolean operations in CATIA. After extracting the preliminary cogging model containing the main motion and the generated motion characteristics, the preliminary cogging model and the tooth blank are processed The simulation cutting of vertical feed motion completes high-precision gear hobbing simulation. The accuracy of the simulation model tooth surface was measured by establishing a standard tooth surface point set, and the error distribution of the simulation tooth surface was obtained, and the highest tooth surface accuracy error in the obtained simulation model was below 1 μm, which verified the correctness of the gear hobbing simulation method in this paper And simulation model accuracy.

关 键 词：渐开线斜齿轮 仿真加工 滚齿 齿面误差 

分 类 号：TH132[机械工程—机械制造及自动化]