本文介绍一种简便可靠的检具,将其与平板配合使用,以光隙法来检查被修直角尺效果很好。该检具的结构如图所示,将两个直径相等的圆环5(经过热处理,精磨抛光) 装在板条3上,通过底座上的调节螺丝4与V型槽内的轴2对板条3进行调节,板条上有孔若干,可视被检直角尺的规格大小选用。使用前将待修直角尺分两次置于图中板条 This article describes a simple and reliable gage, with the flat with the use of the optical gap method to check the square was square effect is very good. The structure of the gauge is shown in the figure. Two rings 5 ​​(heat treated, polished and polished) with the same diameter are mounted on the slats 3, and the shaft 2 in the V-shaped groove is matched with the adjusting screws 4 on the base Slats 3 to adjust the number of holes on the slats, visual inspection of the size of the size of the choice of square. Before use, place the square to be repaired squarely into the slats in the figure