激光传感器扫描边缘系统定位方法研究

Research on system localization method of laser sensor scanning edge

非接触式齿轮倒角测量系统物体坐标系与运动平台坐标系的系统定位是通过人工控制XY移动平台携带激光传感器运动使激光点投射到棋盘格左下角点,该方法存在一定的人为误差,增加了齿轮倒角测量的系统误差[1]。提出用激光位移传感器扫描测量标定板右侧和下侧边缘突变点位置坐标来确定标定板右下角点位置坐标信息,棋盘格有效区域左下角点与标定板右下角点间的距离已知,控制XY二维运动平台运动,使激光点投射到棋盘格有效区域左下角点的位置,完成系统定位。

Non-contact measurement system gear chamfering object coordinate system and system positioning of coordinates of movement platform is to bring laser sensor to move so as to make laser spot to project onto lower left corner point,checkerboard XY mobile platform via manual control,this method has some human error,which increases in system measurement error gear chamfering[1]. Present measurements with using laser displacement sensor to scan calibration plate and the lower edge of the right side of point mutations in the lower right corner location coordinates to determine the calibration board position coordinate information from the lower left corner of the effective area of the checkerboard point between the calibration plate lower right corner is known,control XY motion of two-dimensional motion platform,laser spot is projected onto location of the lower left corner point of checkerboard in active area,complete system positioning.