Die structure and method for extrusion molding of profiles

Abstract

The invention discloses a die structure and method for extrusion forming of profiles. The die structure includes a bottom die base, a cavity is formed in the bottom die base, a forming template and ato-be-formed profile are placed in the cavity, and the to-be-formed profile is placed above the forming template; an upper forming press plate and an upper forming punch are placed on the upper portion of the to-be-formed profile, and the left and right sides of the to-be-formed profile are provided with a first side forming punch and a second side forming punch. The designed die is used for the extrusion forming process of the relay parts for production, when the die structure is in use, the whole die is placed on a machine tool, the forming template is placed in the cavity formed in the bottom die base, the to-be-formed profile is placed on the forming template, the upper press plate is used for pressing and fixing the to-be-formed profile, finally, the machine tool drives the upper forming punch and the side forming punches on the left and right sides for extrusion forming of the to-be-formed profile, the appearance and size of the formed profile are stable, meanwhile, waste is notgenerated in the technological process, and the production cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a mold structure and method for profile extrusion molding. Background technique [0002] During the manufacturing process of parts of precision instruments, strict requirements are required on the size of the parts. If the size is inaccurate or the product is deformed, it will directly affect the quality of the product; the metal parts of high-voltage relays are parts of precision instruments, and the traditional The metal parts of high-voltage relays are generally manufactured by casting. The specific implementation principle is: the metal is melted into a liquid state through high temperature, then injected into the mold cavity, and finally cooled and formed; this traditional production method is very common. , but it has some defects. First of all, injecting high-temperature liquid metal into the mold cavity for cooling and forming can easily lead to product deforma...

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Problems solved by technology

[0002] During the manufacturing process of parts of precision instruments, strict requirements are required on the size of the parts. If the size is inaccurate or the product is deformed, it will directly affect the quality of the product; the metal parts of high-voltage relays are parts of precision instruments, and the traditional The metal parts of high-voltage relays are generally manufactured by casting. The specific implementation principle is: the metal is melted into a liquid state through high temperature, then injected into the mold cavity, and finally cooled and formed; this traditional production method is very common. , but it has some defects. First of all, injecting high-temperature liquid metal into the mold cavity for cooling and forming can easily lead to product deformation and inaccurate dimensions. Delay the production cycle, but for the current situation, there is no better improvement method in China

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