双山形导轨是一种很好的导轨,它具有导向准确、定位稳定、可受多向力、磨损均匀等优点,因此,被多种精密机床所采用。这种导轨丧失精度后,常因双导轨的平行度测量不够合理、不够准确、不够安全,使得修后导轨达不到精度要求,影响机床加工性能,成为精密机床修理中未能较好解决的问题。修理中用来测量双山形导轨平行度 Double-Yamagata rail is a good guide, it has the guide accurate, stable positioning, can be multi-directional force, uniform wear, etc. Therefore, by a variety of precision machine tools used. This type of rail loss of accuracy, often due to the parallelism of the two rail measurement is not reasonable enough, not accurate enough, not safe enough, making the rail repair precision requirements, affecting the performance of machine tools, precision machine repair has not been a good solution problem. Repair is used to measure the parallelism of double Yamagata guide