图1为从意大利引进的5吨汽车纵梁冲孔落料模横截面示意图。 1.快换凸模冲模中的易损件是凸模(冲头)。我厂对从意大利引进的5吨汽车纵梁冲孔落料模中的快换凸模,从凸模设计、凸模材料到凸模的制造工艺都作了一些修改。经过较长时间大批量生产的实践证明,这种快换凸模维修 Figure 1 is a schematic view of a 5-ton automobile longitudinal beam punched blanking die cross-section taken from Italy. 1. Quick-change punch punch in the vulnerability of the punch (punch). I plant on the introduction of Italy from 5 tons of car stringer blanking blanking die quick change, from the punch design, punch material to the punch manufacturing process made some changes. After a long time mass production proved that this quick replacement punch maintenance