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将外缘翻边及内缘翻边的冲压件与另一冲压件压合在一起的冲压方法称为“锁接”。 采用锁接工艺是为了获得空心结构的冲压件,锁接后的冲压件以一种容器的型式出现在各类产品中,是其他加工工艺所无法获得的壁厚均匀、质轻而又坚固的金属容器。 锁接的种类分:1)外缘锁接;2)内缘锁接;3)外缘与内缘锁接。 图1各件相互锁接关系:件1被件2冲孔翻边后锁接,件1是被锁接件;件2圆筒形口部凸肚压平后与件3锁接,件2是锁接件;件3经切边和冲孔后它的外缘和内缘被件4翻边后的外缘和内缘锁接,件3是被锁
The stamping method of embossing the rim flange and rim flange together with another stamping member is referred to as “lock-in”. Locking process is used to obtain the hollow structure of the stamping parts, stamping parts after the lock in the form of a container in a variety of products, is the other processing technology can not get uniform wall thickness, light and sturdy Metal container. The type of locking points: 1) the outer edge of the lock; 2) the inner edge of the lock; 3) the outer edge and the inner edge of the lock. Figure 1 The mutual locking relationship between the pieces: piece 1 is punched and flanging the piece 2 after the lock, piece 1 is the lock pieces; piece 2 cylindrical mouth belly buckle pressed with the piece 3, piece 2 Is a locking member; piece 3 after trimming and punching the outer edge and the inner edge of the flange and the inner edge of the flange after the member 4 is locked, the piece 3 is locked