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小横梁是C_(62)A敞车底架组成的主要零件,数量多,每辆车28根,每件12公斤,其切口形状比较复杂,如图1所示。原用下料工艺是氧—乙炔手工切割,效率低、质量差、劳动强度大,而且要消耗大量的氧气和电石。自1973年以来,采用切口切断连续冲裁下料,工时由原来的168分钟减少到52分钟,而且提高了产品质量,减轻了劳动强度。一、模具的设计特点工件水平放置,其冲裁断面的特点是:槽钢的翼板,腹板厚度不均,差别大而且变
Small beams are C_ (62) A Gondola chassis composed of the main part, the number of more, 28 cars, each 12 kg, the shape of the incision is more complicated, as shown in Figure 1. The original cutting process is oxy-acetylene hand-cut, low efficiency, poor quality, labor-intensive, but also consume large amounts of oxygen and calcium carbide. Since 1973, the incision cut off the continuous blanking blanking, working hours from the original 168 minutes to 52 minutes, but also improve product quality and reduce labor intensity. First, the design features of the mold The workpiece is placed horizontally, the punching section is characterized by: channel steel, uneven web thickness, the difference is large and variable