在检测车床溜板上下导轨的不垂直度时,我们通常将框式水平仪(或方尺)平放在床身两导轨上(有时还在框式水平仪下面加垫一层纸或其它垫块),将装有百分表的磁力表架固定在刀架下滑座表面上,让百分表测头顶在框式水平仪与床身导轨平行的一侧面(纵侧面) When testing the non-perpendicularity of the upper and lower guide rails on the slide carriage of the lathe, we usually place the frame-type level gauge (or square ruler) on two rails of the bed (sometimes with a layer of paper or other pad under the frame-type level gauge) Will be equipped with a dial indicator magnetic table holder fixed to the lower surface of the turret, dial indicator head so that the top of the box level with the bed rail parallel to the side (vertical side)