Zheng Yuansong, Lou Zhifeng, Wang Xiaodong, Yu Zhenjiang
Appl Opt. 2021 Apr 20;60(12):3358-3364. doi: 10.1364/AO.415406.
By converting the alignment issue of multiple span rotary shafts into a non-connected shaftalignment issue, we present a precision alignment strategy for multiple span shafts, and a laser-based method for measuring misalignment of non-connected shafts is proposed. The quadrant photodiode detector was calibrated at different rotation angles to obtain the sensitivity coefficient. According to the calibration results, the experiment scheme of the method was optimized. Then measurement experiments were carried out and the error source, the measurement uncertainty of the results were analyzed. Finally, the misalignment was also measured by a coordinate measuring machine, and the comparison results show that the relative error of the two methods is less than 5%. Therefore, the proposed method can be applied to align multiple span shafts accurately. Furthermore, this method can also be used for non-connected shaft position determinations such as wheel alignment inspections, alignment of machine spindle and center shaft, and others.
通过将多跨旋转轴的对中问题转化为非连接轴的对中问题，我们提出了一种多跨轴的精密对中策略，并提出了一种基于激光的非连接轴不对中测量方法。对象限光电二极管探测器在不同旋转角度下进行校准以获得灵敏度系数。根据校准结果，优化了该方法的实验方案。然后进行测量实验，并分析了误差来源和结果的测量不确定度。最后，还用坐标测量机测量了不对中情况，比较结果表明两种方法的相对误差小于5%。因此，所提出的方法可用于精确地对多跨轴进行对中。此外，该方法还可用于非连接轴位置的确定，如车轮定位检查、机床主轴与中心轴的对中及其他情况。
