基于激光的导轨直线度检测算法研究

Research on Linear Detection Algorithm of Guide Rail Using Laser

直线导轨是一种机电一体化的导向装置,是生产加工的重要零件。研究一种简单的检测导轨直线度的方法,将激光安装在滑块上,照射导轨末端安装的位置传感器,读出光斑离坐标轴的距离。根据该距离得到导轨倾斜角,通过倾斜角计算得到导轨直线度。考虑导轨实际轴线偏离理想轴线而产生静态误差,利用最小二乘法和改进遗传算法消除该误差影响。详细给出了基于激光的导轨直线度检测计算方法,并对误差进行分析,为导轨直线度自动化检测提供条件。

As the guide device of a mechanical and electrical integration,linear guide is an important part of production and processing.In order to detect the detecion of guide rail,a simple method was proposed.The laser was mounted on the slider to illuminate the psd installed at the end of guide rail to read the distance of the spot from the coordinate axis.According to the distance,the inclination angle of guide was obtained,and the detection of guide was calculated by the inclination angle.In consideration of the static error caused by the actual guide axis deviating from the ideal axis,the least square method and the improved genetic algorithm were used to eliminate the influence of the error.The paper,with the analysis on the errors,elabrates the calculation method of linear detection of guide rail based on laser great in detail,thus furnishing the conditions for automatic linear detection of guide rail.