铆工、钳工经常要在工件上划出角度,一般常用直尺、圆规、划针盘、直角尺等划出。例如:划角钢的内弯切口,要先用直角尺划出垂线,再从垂线向两边量取切口宽,然后划出切割线,或者先作出样板,再在角钢上划线。这些方法,既浪费时间,又容易出错。为此,我们制造了简易划线角度尺,具体构造如 Rivet workers, fitter often draw on the workpiece point of view, commonly used ruler, compasses, needle dial, rectangular ruler and draw. For example: the angle of the incline incision, you must first draw a perpendicular with a vertical ruler, and then measured from the vertical to both sides of the incision width, and then draw the cutting line, or first make a model, and then crossed the angle. These methods waste time and are prone to error. To this end, we have created a simple ruler angle ruler, such as the specific structure