Dense hole machining die and dense hole machining method

Abstract

The invention relates to a dense hole machining die and a dense hole machining method. The dense hole comprises an upper die and a lower die. The lower die comprises a lower die plate used for carrying a to-be-machined product. The upper die comprises an upper die seat, an upper stripping plate arranged below the upper die seat and a punch. A spring is arranged between the upper stripping plate and the upper die seat, and a hole for the punch to penetrate is formed in the upper stripping plate. One end of the punch abuts against the upper die seat, and the other end of the punch is arranged inthe hole of the upper stripping plate. The blade end of the punch penetrates out of the hole of the upper stripping plate when punching the spring downwards on the upper die and extruded. The dense hole machining die and the dense hole machining method can be used for machining different sizes of metal sheets with dense holes, and the surface film covering limitation is avoided. When dense holesof the metal sheets have the appearance requirements, dense holes machined by the die have little burrs and do not have black edges, the flatness of the whole pieces is good, hole distances and hole diameters are small, and the hand feeling and the visual sense obtained after illumination can be ensured. In addition, the die is adopted for punching, and therefore the beneficial effects that the material utilization rate is high, the production efficiency is high, and the environment is not polluted are achieved.

Description

technical field [0001] The invention relates to a mold, in particular to a dense hole processing mold and a processing method. Background technique [0002] In the prior art, most of the realization methods for processing dense holes are chemical corrosion. By making a chemical model, the chemical liquid reacts with the thin plate metal, and the metal dissolves in the acidic liquid, thereby forming small holes one by one. However, this method The production efficiency is low, which cannot meet mass production, and the chemical waste produced will pollute the environment. If the product has appearance requirements, the metal sheet is often covered with a film, which cannot be achieved by chemical corrosion again. [0003] Another method is to use laser laser processing, put the metal sheet on the laser table, the laser head emits a high-energy beam, the beam is perpendicular to the sheet, instantly generates high temperature at the irradiation point, and liquefies in the smal...

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Problems solved by technology

[0002] In the prior art, most of the realization methods for processing dense holes are chemical corrosion. By making a chemical model, the chemical liquid reacts with the thin plate metal, and the metal dissolves in the acidic liquid, thereby forming small holes one by one. However, this method The production efficiency is low, which cannot meet mass production, and the chemical waste produced will pollute the environment. If the product has appearance requirements, the metal sheet is often covered with a film, which cannot be achieved by chemical corrosion again.

[0003] Another method is to use laser laser processing, put the metal sheet on the laser table, the laser head emits a high-energy beam, the beam is perpendicular to the sheet, instantly generates high temperature at the irradiation point, and liquefies in the small metal hole. After cooling, The small metal sheet in the round hole is separated from the surrounding of the hole to realize the small hole, but there is a defect in the production of this method. There are small particles after melting and cooling around the small hole, which is not smooth to the touch by hand and has black edges on the outside. Affect the appearance

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