Automatic punching rivet

Abstract

The invention discloses automatic punching rivet. The automatic punching rivet comprises a riveting mechanism, a punching and riveting mechanism and a fixing mechanism, wherein the riveting mechanismcomprises a mounting cylinder and a hammering piece, the hammering piece is installed at the upper end of the mounting cylinder, threads are arranged on the outer side of the mounting cylinder, the punching and riveting mechanism is installed on the inner side of the riveting mechanism, the punching and riveting mechanism comprises a punching hammer, a riveting piece and a first spring, the punching hammer is movably installed at the upper end of the inner side of the mounting cylinder through threads, the riveting piece is movably installed at the lower end of the inner side of the mounting cylinder, a rotating handle is fixedly arranged at the upper end of the punching hammer, and the first spring is installed between the rotating handle and the hammering piece. According to the automatic punching rivet, two materials needing to be riveted are fixed, the fixing mechanism is used to fix rivets to the position where the two materials are riveted, the punching and riveting mechanism isfixed through the riveting mechanism, meanwhile, the riveting piece is driven by the punching and riveting mechanism to fix the two materials, so that stability and firmness of riveting of the two materials are ensured.

Description

technical field [0001] The invention relates to the technical field of rivets, in particular to self-piercing rivets. Background technique [0002] Self-piercing rivets are a cold joining technique used to join two or more metal sheets. After the special rivet penetrates the top sheet, under the action of the riveting die, the hollow structure at the tail of the rivet expands and penetrates without piercing the bottom sheet, thus forming a firm riveting point. It is 30% stronger than ordinary solder joints; it can connect a variety of different materials and difficult-to-rivet plates, and can also connect multi-layer plates in turn; it can rivet coated or plated plates without damaging the coating; riveting process cycle Short, can be as short as less than 1 second, the existing nail head structure is single and simple, the existing rivets are damaged and easy to withdraw during the riveting operation, the use effect cannot be achieved, and the riveting is unstable. Conte...

AI Technical Summary

Problems solved by technology

It is 30% stronger than ordinary solder joints; it can connect a variety of different materials and difficult-to-rivet plates, and can also connect multi-layer plates in turn; it can rivet coated or plated plates without damaging the coating; riveting process cycle Short, can be as short as less than 1 second. The existing nail head structure is single and simple. The existing rivets are damaged and easily withdrawn during the riveting operation, which cannot achieve the use effect and make the riveting unstable.

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