Metal middle frame and processing method of metal middle frame

Abstract

The invention relates to a metal middle frame and a processing method of the metal middle frame. The metal middle frame comprises a middle plate, and a first member and a second member, which are installed on the peripheral edge of the middle plate. A clamping edge is convexly arranged on the peripheral edge of the middle plate, a first neck adapted to the clamping edge is arranged on an inner wall of the first member, a projection is convexly arranged on the end part of the first member, a second neck adapted to the clamping edge is arranged on the inner wall of the second member, and a groove adapted to the projection is formed in the end part of the second member. The first member and the second member are in preset fit so that the clamping edge is riveted in the first next and the second neck, and the projection is riveted in the groove. In the metal middle frame, as the middle plate is well clamped with the first member and the second member through the clamping edge, the first neck and the second neck, a greater large shearing force and drawing force can be withstood, the opening phenomenon of the second member can be avoided, and the assembly stability is good. No welding process is used, so that the process is relatively simple, the production cost is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of middle frame manufacturing, in particular to a metal middle frame and a processing method for the metal middle frame. Background technique [0002] With the continuous development of mobile terminal technology, the application of smart phones, handheld computers, smart watches and other electronic devices has become very common and has become an important part of people's work and life. The shell of electronic devices usually adopts a metal middle frame structure. The frame structure has the advantages of wear resistance and easy heat dissipation, and at the same time can make the product leave a high-end impression on the user. [0003] The metal middle frame structure mainly includes: a metal frame and a middle plate, while the traditional metal middle frame structure generally forms the prototype of the metal middle frame integrally by forging and pressing stainless steel blanks, and then performs CNC ...

AI Technical Summary

Problems solved by technology

[0003] The metal middle frame structure mainly includes: a metal frame and a middle plate, while the traditional metal middle frame structure generally forms the prototype of the metal middle frame integrally by forging and pressing stainless steel blanks, and then performs CNC finishing on the prototype of the metal middle frame , on the one hand, this method of forming and then finishing through blanks requires more waste to be cut off, resulting in more waste of materials

On the other hand, the hardness of the stainless steel blank is relatively high, there are many processing steps, the production efficiency is low, and the cost remains high.

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