FANUC数控机床螺距误差的检测分析与应用

Fanuc数控机床在我国数控加工领域占据着主导地位，它的精度和性能指标直接取决于数控机床的定位精度和重复定位精度。在实践应用中，数控系统的螺距误差补偿功能是最节约成本且直接有效的方法。利用激光干涉仪或步距规测得的实际位置与数控机床移动轴的指令位置相比较，计算出全程上的误差分布曲线，在数控系统控制移动轴运动时考虑该误差差值并加以补偿，可以使数控机床的精度达到更高水平。

Analysis and Application of Thread Pitch Error Compensation in Fanuc CNC Machine

Fanuc CNC Machine Tools dmninated the field of NC machining in China, its accuracy and performance depends directly on the positioning accuracy and repeat positioning accuracy of CNC Machine Tools. In practical applications, the function of pitch error compensation is the most cost effective and direct method of CNC system. The actual position measured by using laser interferorneter or a step gauge is compared with the instructions position of CNC machine moving axis, the position error curve is calculated out on the whole distribution, the error value is compensated in the moving-axis CNC system control movement. So the accuracy of CNC machine tools can be achieved a higher level.