在小型弯曲零件冲孔时,可采用图示结构的冲模,不但生产率高,而且安放和取走零件都十分安全。现将其结构和动作原理介绍如下: 结构可参看附图,凹模镶块13设在摆动块11内,摆动块11由弹簧10保持在如图所示的原始位置。冲压前可把已弯曲的小型零件1方便地放置在摆动块11上。当凸模冲下时,装置在上模座上的活 When punching a small curved part, the die of the illustrated structure can be adopted, which not only has high productivity but also is very safe for placing and removing parts. Now the structure and principle of operation are introduced as follows: Referring to the drawings, the die insert 13 is disposed in the swinging block 11, and the swinging block 11 is retained by the spring 10 in the original position as shown in the figure. Before bending can be bent small parts 1 easily placed on the swing block 11. When the punch down, the device in the mold base on live