Aluminum housing stamping mould for capacitor and aluminum housing stamping formation method

Abstract

The invention relates to the technical field of capacitors, in particular to an aluminum housing stamping mould for a capacitor and an aluminum housing stamping formation method. The mould includes aconvex die and a concave die, a porous column is arranged on the bottom of a convex die body of the convex die, porous column chamfers are arranged on the junction between the porous column and the convex die body, and a locating column is arranged on the bottom of the porous column; the concave die is provided with an aluminum cake cavity, an aluminum pipe cavity, a porous column cavity and a locating column cavity in sequence. The mould and the method mainly aim at solving the technical problems that it is uneasy to adjust the matching dimensions of convex dies and concave dies during installation of existing aluminum housing moulds, and the thickness of the walls of aluminum housings is likely to be uneven. Meanwhile, the technical problems are solved that automatic molding of dies forgeneration of chamfers cannot be achieved on the inner sides of the aluminum pipe openings of the aluminum housings of aluminum pipes in existing machining tools, and a manual chamfering procedure needs to be added in the production process. The manual chamfering procedure is removed, the manpower cost is reduced, the chamfer quality of products is ensured, and a technical quality problem that cables are scratched by the inner sides of the aluminum pipe openings of the aluminum housings is avoided.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a stamping die for an aluminum shell for a capacitor and a stamping forming method for the aluminum shell. Background technique [0002] Shanghai Haoyue Electric Co., Ltd. applied for a utility model patent in 2013 and was authorized. The patent application number is 201320343543.4. The patent name is "Aluminum protective cap for direct-leading capacitors with all-aluminum shell cables", which was applied in 2016. A utility model patent has been obtained and authorized, the patent application number is 201620452103.6, and the patent name is "a high-safety metal shell capacitor". Both patents require aluminum housings with aluminum tubes (eg figure 1 shown), and in order to prevent scratches on the lead-out cables of the capacitor during the production process, both ends of the aluminum tube are required to be chamfered and smoothed. But the reality is that the molds for prod...

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