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本测量系统是为解决某单位生产的典型通用关键件——曲臂的各参数测量而专门设计研制的。该系统在激光狭缝扫描原理的基础上,采用激光检测技术、精密机械技术、光电传感技术、现代电子技术与计算机技术,从而实现了对曲臂两臂的平行度误差和轴径尺寸误差的非接触测量。实验证明该系统平行度测量分辨率为0.01 mm,重复性精度为±0.01 mm;轴径尺寸测量范围Φ40～180 mm,分辨率为1μm,重复性精度为±5μm。该系统成功解决了企业在生产加工过程中形状复杂、重量与尺寸较大的工件只靠工艺保证而不能进行检测的实际问题。
The measurement system is designed to solve the measurement of various parameters of the crank arm, a typical common key part produced by a unit. Based on the principle of laser slit scanning, the system uses laser detection technology, precision mechanical technology, photoelectric sensing technology, modern electronic technology and computer technology to realize the parallelism error and the shaft size error Non-contact measurement. Experiments show that the resolution of this system is 0.01 mm, the repeatability is ± 0.01 mm, the measuring range of shaft diameter is Φ40 ~ 180 mm, the resolution is 1μm and the repeatability is ± 5μm. The system has successfully solved the practical problems that the enterprises can not detect the workpieces with complex shapes, heavy weights and large sizes only by the process assurance during the production and processing.