Voice diaphragm pressure bearing piece stamping and laser irradiation composite forming machining device and method thereof

Abstract

The invention relates to a voice diaphragm pressure bearing piece stamping and laser irradiation composite forming machining device and a method of the device. The device is a composite device formed by combining an automatic grading stamping forming die and a laser irradiation heating system. Strip-shaped materials are fed and located under the control of an automatic feeding device. The voice diaphragm pressure bearing piece forming machining process is divided into three continuous automatic grading steps of punching, laser irradiation heating forming and blanking. In a first station, an edge pressing mechanism, a punching male die and a fixed die plate are combined for punching, so that a voice diaphragm pressure bearing piece is punched; in a second station, a forming male die, the fixed die plate and restraint layer glass are combined to acquire a laser irradiation heating forming station, a laser unit works, the strip-shaped materials are irradiated with lasers through the restraint layer glass, the strip-shaped materials are heated and softened through laser irradiation, extrusion of the forming male die is conducted, and therefore the voice diaphragm pressure bearing piece is formed; in a third station, blanking is conducted, the voice diaphragm pressure bearing piece is blanked through a blanking male die. The voice diaphragm pressure bearing piece stamping and laser irradiation composite forming machining device is simple, practical and low in cost, the forming efficiency of the voice diaphragm pressure bearing piece is high, and the forming accuracy of the voice diaphragm pressure bearing piece is good.

Description

technical field [0001] The invention relates to the field of thermoplastic forming and processing of small thin-walled annular parts, in particular to a compound forming processing device and method for sound film pressure-bearing parts stamping and laser irradiation. Background technique [0002] The pressure-bearing part of the sound film is a key part of a small speaker, which is used to fix and support the sound film on the base of the speaker. It is generally a small thin-walled ring with a boss or a U-shaped structure. The main components of the electromechanical system are widely used in many fields such as mobile phones, small vocal equipment, and sound-activated monitoring equipment. With the increasing demand for small thin-walled ring parts in the market, especially the increasingly thinner mobile phones, the sound film is under pressure. The requirements for ultra-thin wall thickness of parts are getting higher and higher. At present, the wall thickness of sound ...

AI Technical Summary

Problems solved by technology

At present, the sound film pressure parts are mainly traditional injection molding, but for thin-walled plastic parts, especially ultra-thin plastic parts with a wall thickness of less than 0.5mm, due to the limitation of the plastic melt flow ratio in the injection filling process, Thin-walled plastics have the problem of difficult filling and forming. Therefore, the injection molding process is complicated and the production cost is high. In addition, in the injection molding process of thin-walled ring parts, the problem of welded joints is not easy to solve. The welded joints reduce the strength of molded parts and affect product quality.

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