02
：第8期
2012年8月
文章编号
1004-924X(2012)08-1796-06
光学精密工程
Optics and Precision Engineering
降低齿轮齿距累积偏差的方法
宋洪侠1*，赵苏苏1，娄志峰"，王立鼎1-2
(1.大连理工大学精密与特种加工教育部重点实验室，辽宁大连116023 2.大连理工大学微纳米技术及系统辽宁省重点实验室，辽宁大连116023）
Vol,20
No,8 Aug.2012
摘要：为了减小齿轮磨削加工中的磨床系统分度误差，提高齿轮加工精度，分析了齿轮磨床分度误差、齿轮安装偏心和齿轮齿距偏差之间的关系，获得了分度误差的计算方法，并计算出了齿轮磨床的分度误差。依据计算得到的分度误差值调整磨床，降低磨床分度误差，减小齿轮齿距累积偏差，提高了齿轮加工精度，以Y7125大平面砂轮磨齿机床为例验证了提出方法的可行性，建立了齿轮安装偏心和齿廊偏差的数学模型，求出了齿轮安装偏心的幅值和相位角，然后由齿轮安装偏心、磨床分度误差和齿轮齿距偏差的关系得到响床的分度误差值。根据计算得到的分度误差值调整响床分度盘，使磨床的分度误差从17.7μm减少为3.3μm，被加工齿轮的售距累积总偏差由46.9μm降低到11.5μm，齿距精度达到三级，验证结果表明，按照这种方法调整磨床可以快速有效地降低磨床的系统分度误差，从而降低齿轮的齿距累积偏差。
关
键词磨床；齿轮磨削；齿距偏差；齿廊偏差；安装偏心；分度误差
中图分类号：TG61;TG580.6
文献标识码：A
doi:10.3788/OPE,20122008,1796
Reduction of cumulativepitch deviation for gears in grinding machines
SONG Hong-xia', ZHAO Su-su', LOU Zhi-feng',WANG Li-dingl-
(l.KeyLaboratoryfor Precision&Non-traditional
Machining of theMinistry ofEducation,DalianUniversity of Technology,Dalianl16023,China;
2.Key Laboratory for Micro/Nano Technology and System of Liaoning Province,
DalianUniversityofTechnology,Dalian116023,China） Corresponding author,E-mail.hrsong@dlut.edu.cn
Abstract: To reduce the system dividing error of a grinding machine in gear grinding and to improve the machining accuracy of gears, the relationship among the dividing error of grinding machine, gear eccentricity installation, and the pitch deviation was analyzed, and the calculation method for dividing errors of the gear was obtained. By adjusting the grinding machine according to the caleulated dividing error, the dividing error of grinding machine and the cumulative pitch deviation of the gear were de-creased and the manufacturing accuracy was enhanced. The method was verified by taking the flat faced wheel grinding machine Y7125 as an example. Firstly, a mathematic model on gear eccentricity installation and profile deviation was established to figured out the amplitude and phase angles of gear cccentricity installation. Then, based on the relationship among gear eccentricity installation, the di-
收稿日期：2012-04-12；修订日期：2012-05-30.
基金项目：国家自然科学基金资助项目（No.50905026)；国家863高技术研究发展计划资助项目(No.2008AA042506)