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由于零件批量较大,为了提高生产效率,故采用连续模冲制。前几工步安排冲孔、局部成形、切口和冲出局部外形。最后两道工步分别为压弯卡口、切断並弯曲成形。考虑到加工、修磨和维护的方便,上模固定板和凹模设计成冲裁和成形两大部分,并在易损部位采用镶拼结构,条料粗定位采用侧刃,精定位采用导正销导正,导正孔安排在条料两侧搭边上。由于存在着局部成形、切口、压弯和弯曲,条料送进时需从凹模表面抬起一定高度,因此需使用抬料钉(图2)。这样送料时,条料不会卡在凹模上,也避免了条料前送时凹模
Due to the larger parts, in order to improve production efficiency, so the use of continuous die Chong system. The first few steps to arrange punching, local forming, incision and out of the local shape. The last two steps were crimping bayonet, cut off and bending shape. Taking into account the processing, grinding and maintenance of convenience, the mold fixed plate and die designed to blanking and forming two major parts and wearing parts in vulnerable parts of the structure, the strip coarse positioning of the side of the blade, the use of precision positioning guide Positive sales guide, guide holes are arranged on both sides of the material on the edge. Due to the local forming, cutting, bending and bending, the strip feeding needs to be lifted from the surface of the die a certain height, so the need to use lifting nail (Figure 2). Such feeding, the material will not be stuck in the die, but also to avoid the feed before die when die