Four methods aiming at measuring rotary machine axis center trace arediscussed in detail. The comparative analysis is made on some aspects such as measurement accuracy,on-machine characteristics, feasibility, practica...Four methods aiming at measuring rotary machine axis center trace arediscussed in detail. The comparative analysis is made on some aspects such as measurement accuracy,on-machine characteristics, feasibility, practical operation convenience and the integrity ofmeasurement information. In order to simplify measurement, the axis profile error is ignored intraditional condition, while the measurement accuracy will be reduced. The 3-point method that theaxis profile error is firstly separated has better real time character, at the same time, not onlythe axis motion error but also the axis profile error can be measured. All of those information canbe used to diagnose the fault origin. The analysis result is proved to be correct by the experiment.展开更多
基金This project is supported by National Natural Science Foundation of China.(No.50075056)
文摘Four methods aiming at measuring rotary machine axis center trace arediscussed in detail. The comparative analysis is made on some aspects such as measurement accuracy,on-machine characteristics, feasibility, practical operation convenience and the integrity ofmeasurement information. In order to simplify measurement, the axis profile error is ignored intraditional condition, while the measurement accuracy will be reduced. The 3-point method that theaxis profile error is firstly separated has better real time character, at the same time, not onlythe axis motion error but also the axis profile error can be measured. All of those information canbe used to diagnose the fault origin. The analysis result is proved to be correct by the experiment.
文摘为了提高平面包络环面蜗杆齿面的加工精度,提出了环面螺旋线误差检测、加工误差溯源及修正加工方法.以微分几何和啮合理论为基础,建立了平面包络环面蜗杆的齿面方程、环面螺旋线数学模型及带误差的环面螺旋线数学模型,分析了测头半径补偿原理及误差评定方法.利用研制的环面蜗杆检测仪检测了样件齿面螺旋线误差,应用遗传算法进行了误差溯源分析,并以溯源结果为基础,修正加工了样件齿面.结果表明,修正加工后的样件齿面螺旋线误差从0.140 mm降至0.025 mm.
