Middle frame manufacturing method, middle frame and electronic equipment

Abstract

The invention relates to a manufacturing method of a middle frame. The manufacturing method comprises the following steps: providing a metal profile; carrying out CNC machining on the metal profile toform a battery bin and a first distressing groove; performing CNC machining on the metal profile to form a second distressing groove; carrying out CNC machining on the metal profile to form a workblank, wherein the workblank comprises a frame part and a middle plate part located in the frame part; carrying out injection molding on the workblank to form a plastic part, wherein the plastic part ispositioned on the frame part and the middle plate part; carrying out CNC machining on the workblank so as to remove residual materials on the outer side of the workblank; and carrying out CNC machining on the workblank, and obtaining the formed middle frame. Meanwhile, the invention further provides a middle frame and electronic equipment. The manufacturing method has the beneficial effects that in the middle frame manufacturing process, multiple material reducing procedures are added, internal stress remaining on a workpiece is released, the flatness of the LCD area and the edge of the formedmiddle frame is optimized, and the yield of products is increased.

Description

technical field [0001] The invention relates to the technical field of electronic product manufacturing, in particular to a manufacturing method of a middle frame, a middle frame, and an electronic device. Background technique [0002] The middle frame of the mobile phone is the main carrier of the electronic devices in the mobile phone. The accuracy of its structure will affect the accuracy of the subsequent electronic device assembly and affect the product quality of the entire mobile phone. For example, if the flatness of the LCD (English full name: LiquidCrystal Display, Chinese name: Liquid Crystal Display) area and edge of the middle frame is poor, the LCD will not be able to fit the middle frame completely, resulting in defective products. The reason for the poor flatness of the LCD area and the edge of the middle frame is that the middle frame needs to go through multiple CNC processing processes during the production process, and the internal stress in the previous ...

AI Technical Summary

Problems solved by technology

[0002] The middle frame of the mobile phone is the main carrier of the electronic devices in the mobile phone. The accuracy of its structure will affect the accuracy of the subsequent electronic device assembly and affect the product quality of the entire mobile phone.

For example, if the flatness of the LCD (English full name: LiquidCrystal Display, Chinese name: Liquid Crystal Display) area and edge of the middle frame is poor, the LCD will not be able to fully fit the middle frame, resulting in defective products

The reason for the poor flatness of the LCD area and the edge of the middle frame is that the middle frame needs to go through multiple CNC processing processes during the production process, and the internal stress in the previous process has not been released, so that the subsequent processing The flatness of the LCD area and the edge of the middle frame of the frame varies, resulting in the problem of defective products

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