导向型材是装在飞机机翼上的一种长条型材零件,用0.6～0.8毫米厚的不锈钢板滚压成型,全长4米多,220多个φ2.6毫米的小孔不等距地分布在零件的两侧。零件图如图1所示。按原工艺方法加工导向型材上的这么多小孔,首先要按样板划线、打样冲、上钻床钻孔,然后打毛刺,完成这四道工序每根需花1.5～2小时,工作量大,往往拖延生产进度。一九七六年初,我们自行设计和制造了一台“导向型材自动冲孔机”(见图2)。实现自动化冲孔后,把原来的四道工序合 Guide profile is mounted on the wing of a long section of the aircraft parts, with 0.6 ~ 0.8 mm thick stainless steel plate rolling molding, a total length of 4 meters, more than 220 φ2.6 mm holes are not equidistant Distributed on both sides of the part. Parts shown in Figure 1. According to the original method of processing the guide profile so many holes, first according to the model crossed, proofing red, drill drilling, and then burr, to complete the four processes each takes 1.5 to 2 hours, heavy workload , Often delay the progress of production. In early 1976, we designed and built a “Profiled Profile Automatic Punching Machine” (see Figure 2). After the realization of automatic punching, the original four processes together