图示为一种用于加工细金属线弯钩的工具。一次冲压后,该装置在切断金属线的同时,把金属线的一端弯成闭环形,另一端弯成90°的直角。加工金属线的过程如下:没有淬硬的金属线从该装置的右端入口处送入, The figure shows a tool for making hooks of thin metal wires. After a punching, the device in the cut off the metal wire at the same time, one end of the metal wire into a closed loop, the other end into a 90 ° right angle. The process of processing the metal wire is as follows: no hardened wire from the right end of the device into the entrance,