在各类机床大修过程中,常用角尺测量车床、磨床等各类机床纵横向导轨的垂直度,由于气候对角尺的形响,使侧量结果不稳定。检测中角尺没有安装定位基准,在任意空间位置放置,受外界影响较大,需反复校正角尺,检测精度差,工作效率低。我利用老式桥板丁字尺安装方便、稳定、复现性能好的特点,增加它的 In all types of machine overhauling process, the commonly used square measuring lathe, grinding machine and other vertical and horizontal lathe verticality of the rail, due to the impact of the climate diagonal scale, so that the results of the amount of side instability. There is no positioning datum in the detection square, which can be placed in any space. It is greatly affected by the outside world. It is necessary to calibrate the square regularly, which has poor detection accuracy and low work efficiency. I use the old bridge T-square feet to install convenient, stable, reproduce the characteristics of good performance, increase its