伺服增益参数对退刀位齿距偏差的影响机理研究  

Study on the Influence Mechanism of Servo Gain Parameter on the Pitch Deviation Error of Tool Retracting Position

作　　者：赵春华[1,2] 梁志鹏[2] 

机构地区：[1]三峡大学水电机械设备设计与维护湖北省重点实验室,湖北宜昌443002 [2]三峡大学机械与动力学院,湖北宜昌443002

出　　处：《机械传动》2017年第2期56-61,共6页Journal of Mechanical Transmission

基　　金：国家自然科学基金(51205230);三峡大学研究生科研创新基金(SDYC2016028)

摘　　要：在数控插齿加工齿轮过程中,退刀位齿距偏差超差问题普遍存在。首先,提出了在合理控制数控插齿机床几何精度、运动误差、定位精度等因素的前提下,展成运动不同步是齿距偏差超差问题产生的根本原因;其次,设计了一种联机式齿轮精度检测装置以减小安装及测量误差对齿轮齿距偏差测量精度的影响;最后,基于数控系统伺服增益参数对伺服电机控制轴的影响机理,通过改变伺服增益参数进行了大量插齿加工正交试验,验证了退刀位两回转轴展成运动不同步是退刀位齿距偏差超差问题的根本原因,分析了伺服增益参数对退刀位齿距偏差超差的影响规律,并提出了相应的参数调整策略。该研究为数控插齿加工齿轮退刀位齿距偏差超差问题的解决提供了一种新的思路。The pitch deviation error of tool retracting position is a critical problem during the machining process of gears with numerical control（NC） shaping machine.After analyzing the influence factors of gear machining accuracy,generating motion out-of-sync is identified as the primary cause of the pitch deviation error in the case of well controlling of geometric accuracy,motion error and positioning precision.In order to reduce the influence of gear installation error and measurement error on gear pitch deviation measurement precision,an online gear precision detection device is designed.According to the influence law of servo gain parameter on the control shaft of servo motor,several orthogonal gear shaping tests are carried out by changing the servo gain parameter.The test results prove that the generating motion out-of-sync of tool retracting position is the primary cause of the pitch deviation error of tool retracting position.Simultaneously,the influence law of servo gain parameter on the pitch deviation error of tool retracting position is analyzed and the corresponding parameter adjustment strategies are proposed.The study provides a new approach to solve the pitch deviation error problem of tool retracting position with NC shaping machine.

关 键 词：展成运动不同步 齿距偏差超差 影响规律 调整策略 

分 类 号：TH132.41[机械工程—机械制造及自动化]