Composite insulator fitting buckle crimping die and its crimping process

Abstract

The invention discloses a composite insulator hardware pressing die. The composite insulator hardware pressing die comprises a pre-pressing die body and a secondary pressing die body, wherein the pre-pressing die body and the secondary pressing die body are not concentric, the pre-pressing die body and the secondary pressing die body are each formed by arranging multiple die body blocks in the circumferential direction, and a gap is reserved between every two adjacent die body blocks. The invention further discloses a pressure welding technology of composite insulator hardware. According to the pressure welding technology of the composite insulator hardware, primary pressure welding and secondary pressure welding are conducted, the pre-pressing die body is installed on a primary pressing machine, one end of the pre-pressing die body is tightly attached to the encapsulated end of the hardware during pre-pressing of the hardware, and then pre-pressing pressure welding is conducted; encapsulated hardware which is obtained through injection molding is placed on the secondary pressing die body, one end of the secondary pressing die body is close to the encapsulated end of the hardware, then secondary pressing is conducted on a first section, and then pressing is conducted on other sections behind the first section in sequence. The composite insulator hardware pressing die is reasonable in structure, the pressing technology is simple, and stress of the pressed surface of the hardware is even; compared with a traditional pressing technology, the area of the pressed surface of the hardware is effectively increased, the mechanical tensile strength of a composite insulator is improved, and safe operation of the composite insulator is guaranteed.

Description

technical field [0001] The invention relates to a crimping die for composite insulator hardware. [0002] The invention also relates to a crimping process of composite insulator fittings. Background technique [0003] Conventional composite insulator fitting crimping dies are made of special steel directly, followed by heat treatment. The two ends of the crimping die are vertical structures. The crimping of fittings is divided into pre-crimping and secondary crimping. Requirements, resulting in uneven withholding pressure on the plastically deformed surface after buckling of fittings, low tensile strength and large dispersion of composite insulators. Therefore, it is necessary to provide a new technical solution to solve the above problems. Contents of the invention [0004] In order to solve the above problems, the present invention provides a buckling die for composite insulator fittings. [0005] The invention also provides a crimping process for composite insulator ...

AI Technical Summary

Problems solved by technology

[0003] Conventional composite insulator fitting crimping dies are made of special steel directly, followed by heat treatment. The two ends of the crimping die are vertical structures. The crimping of fittings is divided into pre-crimping and secondary crimping. requirements, resulting in uneven buckle pressure on the plastically deformed surface after buckling of fittings, low tensile strength and large dispersion of composite insulators

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