Lockwasher PCB (printed circuit board) punching die

Abstract

The invention discloses a lockwasher PCB punching die. The lockwasher PCB punching die comprises an upper die holder and a lower die holder; a guide sleeve and the a guide column which are matched with each other are arranged at an interval between the upper die holder and the lower die holder; the bottom of the upper die holder is provided with a terrace die fixing plate, the bottom of the terrace die fixing plate is provided with a terrace die and an unloading plate, and the terrace die penetrates the unloading plate downwards; the above the upper die holder is fixedly provided with a concave die, which is provided with cutting edges and matched with the terrace die; an elastic unit is arranged between the upper die holder and the unloading plate. By means of the elastic unit, the lockwasher PCB punching die can exert higher pressing force during a punching process and accordingly can avoid hole wall separation of PCBs, improve the punching quality and further improve the product quality and the process stability of the PCBs.

Description

technical field [0001] The invention relates to a punching die for a lock pad printed board. Background technique [0002] Punch Forming Process (Punch Forming Process) is a forming processing method that applies external force to plates, pipes, etc. fixed in a mold by a press to deform or separate them, thereby making workpieces of required shape, size and performance. The stamping process has the characteristics of fast speed and large batches, so it requires equipment (including molds) with a high degree of automation and sustainable processing accuracy. [0003] Punch mold is a mold used for stamping and forming. In high-speed mass production, the design and manufacture of stamping mold can have a direct impact on the quality and production efficiency of stamping parts. [0004] The lock pad is manufactured by a blanking die through a blanking process. As one of the stamping dies, the lock pad blanking die also has a direct impact on the production efficiency and dimen...

AI Technical Summary

Problems solved by technology

However, the blanking die used in the related art has the defects of insufficient pressure applied by the punch, the punched part is easy to stay in the cutting hole, and the cutting edge wall of the die is severely worn, which will cause a decline in stamping accuracy and production efficiency , and the shortening of equipment life, which leads to the increase of production cost and the decline of product quality

[0005]In the related technology of manufacturing printed circuit board (PCB for short), because its material is copper-clad epoxy board, so when punching PCB When the holes are drilled, there will be delamination of the hole wall, which not only affects the quality of PCB products, but also increases the scrap rate, thus increasing the production cost of the enterprise and reducing the production efficiency

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