基于谐波分解的滚齿加工齿距误差在机补偿方法研究
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摘要
为提高齿轮的滚齿加工精度,提出了一种基于谐波分解的滚齿加工齿距误差在机补偿方法。利用在机测量系统对含有加工余量的齿轮进行齿距累积偏差的测量,得到齿距累积偏差曲线;根据离散傅里叶变换求取齿距累积偏差曲线的幅值谱和相位谱,通过所求得的幅值谱和相位谱求解误差补偿量,以加工程序(NC程序)的形式输入数控系统;通过控制滚刀和工件之间的啮合关系,从而实现齿轮齿距累积偏差的在机补偿。通过VeriCut进行的齿轮加工仿真结果表明,该方法可以减小被加工齿轮的齿距累积偏差,使滚齿加工的齿距加工精度提高2-3个精度等级。
To improve the accuracy of gear hobbing,a method based on harmonic decomposition for gear pitch errorcompensation on machine is proposed. Firstly,the pitch cumulative deviation of gears with machining allowance is measured by on-machine measurement system. Nextly,the amplitude spectrum and phase spectrum of the pitch cumulative deviation curve are obtained by discrete Fourier transform,and the error compensation quantities are calculated by the amplitude spectrum and phase spectrum. Finally,the error compensation quantities are input into the NC system in the form of NC program to control the meshing relationship between the hob and the workpiece. Therefore,the on-line compensation of accumulative deviation of gear pitch can be realized. Gear machining through VeriCut simulation shows that the harmonic decomposition method proposed in this paper can reduce the pitch cumulative deviation of the machined gear and that the hobbing accuracy about the pitch accumulative deviation can be improved by 2-3 grades.
To improve the accuracy of gear hobbing,a method based on harmonic decomposition for gear pitch errorcompensation on machine is proposed. Firstly,the pitch cumulative deviation of gears with machining allowance is measured by on-machine measurement system. Nextly,the amplitude spectrum and phase spectrum of the pitch cumulative deviation curve are obtained by discrete Fourier transform,and the error compensation quantities are calculated by the amplitude spectrum and phase spectrum. Finally,the error compensation quantities are input into the NC system in the form of NC program to control the meshing relationship between the hob and the workpiece. Therefore,the on-line compensation of accumulative deviation of gear pitch can be realized. Gear machining through VeriCut simulation shows that the harmonic decomposition method proposed in this paper can reduce the pitch cumulative deviation of the machined gear and that the hobbing accuracy about the pitch accumulative deviation can be improved by 2-3 grades.
引文
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[4]谷秋梅,刘庆胜.大型齿轮主要测量方法及仪器[J].工具技术,2011,45(6):113-115.
[5]王时龙,祁鹏,周杰,等.数控滚齿机热变形误差分析与补偿新方法[J].重庆大学学报,2011,34(3):13-17.
[6]韩江,王国权,夏链,等.数控滚齿机几何误差补偿技术研究[J].合肥工业大学学报(自然科学版),2015,38(7):865-869,943.
[7]宋鹍,张根保,刘润爱,等.基于直接驱动技术的数控滚齿机同步运动控制研究[J].机床与液压,2006(11):7-9.
[8]贾冬生,赵家黎.齿轮数控滚切加工及误差补偿研究[J].机械传动,2015,39(12):24-27.
[9]韩江,姜小飞,夏链,等.数控滚齿机刀架温度场及热误差仿真分析[J].合肥工业大学学报(自然科学版),2013(11):1285-1288.
[10]杨建国,许黎明,刘行,等.加工中心的几何误差和热误差综合补偿模型[J].计量学报,2001(2):90-94.
[11]郭前建.数控滚齿机几何误差与热误差实时补偿技术研究[D].上海:上海交通大学,2008.
[12]商向东,经以广,邓丽军.论滚齿径向误差补偿技术在滚齿加工中的应用[J].沈阳工业大学学报,1996(1):1-7,12.
[13]王一菊,郑鹏,段振云,等.滚齿加工误差补偿技术的实验研究[J].机械设计与制造,2000(6):84-85.
[14]高秀兰,鲁开讲,赵迎祥.滚齿加工误差的诊断分析与补偿系统研究[J].新技术新工艺,2002(12):19-21.
[2]董雷.大齿轮齿距偏差在机测量原理与技术的研究[D].沈阳:沈阳工业大学,2008.
[3]王建华,劳奇成,刘波,等.CNC齿轮测量中心的原理、特点及关键技术[J].工具技术,1996(3):41-43.
[4]谷秋梅,刘庆胜.大型齿轮主要测量方法及仪器[J].工具技术,2011,45(6):113-115.
[5]王时龙,祁鹏,周杰,等.数控滚齿机热变形误差分析与补偿新方法[J].重庆大学学报,2011,34(3):13-17.
[6]韩江,王国权,夏链,等.数控滚齿机几何误差补偿技术研究[J].合肥工业大学学报(自然科学版),2015,38(7):865-869,943.
[7]宋鹍,张根保,刘润爱,等.基于直接驱动技术的数控滚齿机同步运动控制研究[J].机床与液压,2006(11):7-9.
[8]贾冬生,赵家黎.齿轮数控滚切加工及误差补偿研究[J].机械传动,2015,39(12):24-27.
[9]韩江,姜小飞,夏链,等.数控滚齿机刀架温度场及热误差仿真分析[J].合肥工业大学学报(自然科学版),2013(11):1285-1288.
[10]杨建国,许黎明,刘行,等.加工中心的几何误差和热误差综合补偿模型[J].计量学报,2001(2):90-94.
[11]郭前建.数控滚齿机几何误差与热误差实时补偿技术研究[D].上海:上海交通大学,2008.
[12]商向东,经以广,邓丽军.论滚齿径向误差补偿技术在滚齿加工中的应用[J].沈阳工业大学学报,1996(1):1-7,12.
[13]王一菊,郑鹏,段振云,等.滚齿加工误差补偿技术的实验研究[J].机械设计与制造,2000(6):84-85.
[14]高秀兰,鲁开讲,赵迎祥.滚齿加工误差的诊断分析与补偿系统研究[J].新技术新工艺,2002(12):19-21.