Mobile phone middle frame and production process of mobile phone frame comprising same

Abstract

The invention relates to a mobile phone middle frame and a production process of a mobile phone frame comprising the same. The mobile phone middle frame comprises a metal frame formed by allowing the end parts of a bent metal strip to be butted; and a plurality of metal support pieces are welded on the inner side surface of the metal frame at intervals. the production process comprises the following steps: a, performing cutting machining on the metal strip and the metal support pieces; b, bending the metal strip to form the metal frame; c, performing shaping on the metal frame; d, welding the joint of the end parts of the metal frame; e, welding the required metal support pieces in sequence on the inner wall surface of the metal frame; and f, placing the metal frame on which the metal support pieces are well welded in a casting die, performing die-cast formation to obtain a middle phone middle plate, and integrally combining the mobile phone middle plate with the metal frame through the metal support pieces. According to the mobile phone middle frame and the production process of the mobile phone frame comprising the same, through the structural style and the machining manner, CNC machining is greatly reduced even avoided, the machining cost is greatly reduced, the production efficiency is improved, and the machining time of the mobile phone frame is shortened by 40%-50%.

Description

Technical field: [0001] The invention relates to the technical field of mobile phone parts and components, in particular to a mobile phone middle frame and a production process of a mobile phone frame containing the mobile phone middle frame. Background technique: [0002] At present, the mobile phone frame is generally made of aluminum alloy. The traditional processing method is mainly to directly produce the overall middle frame and middle plate by hollowing out and cutting processes on an aluminum alloy plate. This processing method uses CNC processing, and the process is relatively complicated. The processing is difficult, the cost is high, and the material utilization rate is low. In addition, the middle frame and the middle plate are separately assembled. The aluminum middle frame and the aluminum middle plate are formed by die-casting respectively, and then the two are connected and assembled by screws. The processing efficiency of this method is also low, and the con...

AI Technical Summary

Problems solved by technology

[0002] At present, the mobile phone frame is generally made of aluminum alloy. The traditional processing method is mainly to directly produce the overall middle frame and middle plate by hollowing out and cutting processes on an aluminum alloy plate. This processing method uses CNC processing, and the process is relatively complicated. The processing is difficult, the cost is high, and the material utilization rate is low

In addition, the middle frame and the middle plate are separately assembled. The aluminum middle frame and the aluminum middle plate are formed by die-casting respectively, and then the two are connected and assembled by screws. The processing efficiency of this method is also low, and the connection holes , The thread processing is more cumbersome, and the stability after assembly is poor

[0003] In addition, there is also a method of in-mold die-casting to combine the middle plate and the middle frame, but at present, this method has disadvantages such as poor combination stability and difficulty in guaranteeing product quality, especially for metal middle frames and middle plates of different materials. , it is more difficult to effectively combine, resulting in a low yield rate of the product, making it difficult to apply on a large scale

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