Terminal fisheye contour forming process

Abstract

The invention relates to a terminal fisheye contour forming process. The process includes the steps of 1, taking a substrate and pre-cutting terminal fisheye contours on the substrate; 2, sending the substrate with the precut fisheye contours to a piercing station for piercing, and allowing the terminal fisheye contours and waste to be incompletely pierced after piercing; 3, sending the pierced substrate to a fisheye waste ejection station to punch off the waste, thus obtaining the terminal fisheye contours; 4, sending the substrate with the waste punched off into a chamfering station for chamfering, and chamfering to obtain four rounded angles of each terminal fisheye contour. The terminal fisheye contours formed by the process are smooth and flat with no bur edge, the formed terminal fisheye contours are precise in size with low fluctuation, chamfers are smooth with small errors, and stripping is easy.

Description

technical field [0001] The invention relates to a continuous stamping technology, in particular to a fish-eye shape forming process of a communication terminal on a backplane. Background technique [0002] In today's society, communication equipment is an important communication tool. Various communication equipment and peripheral equipment require small size, light weight and strong transmission capacity, so the volume of each component and terminal must also be reduced. [0003] The shape of the communication terminal on the backplane is a fish-eye shape (such as figure 1 shown), and the existing molding process of this fisheye terminal is to pre-cut the fisheye shape on the substrate. When pre-cutting, a width of 0.5 to 0.8 times the substrate thickness should be reserved on one side. Then finely cut to the required size to obtain a terminal with a fish-eye shape, and then use the overall chamfering method to pour out a terminal with a precise fish-eye shape. At present...

AI Technical Summary

Problems solved by technology

At present, most manufacturers of fisheye terminals adopt this process. The advantages of this process are: the equipment used is simple and the production cost is low; but this process has many defects: the fish obtained by this process The size of the eye-shaped terminal fluctuates greatly and is unstable (generally fluctuating in the range of + / -0.02MM); during fine cutting, the cutter directly cuts the fish-eye shape on the substrate, due to the friction between the cutter and the terminal, The part where the fisheye terminal is in contact with the cutter is prone to burrs. The shape of the fisheye is not smooth, uneven and has large burrs, which seriously affects the quality of the terminal. , multiple parts are assembled in pieces, so the cumulative error of the chamfered parts is large, the size error of the poured corner is large, the poured corner is asymmetrical, the stripping is not smooth, and there are chamfering burrs or burrs

Images