在用角钢焊接的大量桁架结构中,常常需要将角钢两端或其它部位切出不同形状的缺口(见图1、图2)。此工序往往用手工锯割,既费力,效率又很低,锯条消耗量又大,而且加工质量不好。根据生产实际需要,我们设计的这套模具以机械代替手工操作,不仅大大减轻了工人的劳动强度,而且比手工锯割效率提高二十倍以上,切面质量大为提高,对于批量生产角钢构件 In a large number of truss structures welded with angle steel, it is often necessary to cut both ends of the angle steel or other parts into different shaped notches (see FIG. 1 and FIG. 2). This process is often sawing by hand, both laborious, low efficiency, sawing consumes large, and the processing quality is not good. According to actual production needs, we designed this set of machinery instead of manual operation, not only greatly reducing the labor intensity of workers, and more than 20 times more efficient than manual sawing, cutting quality greatly improved, for the production of angle steel components