Solid self-punching rivet

Abstract

The invention discloses a solid self-punching rivet, comprising a rivet cap and a rivet rod, wherein a conical port is arranged between the rivet cap and the rivet rod, the rivet rod is in a cylindrical shape, and at least one circle of an annular groove is arranged on the outer circumferential surface of the rivet rod. When in use, the solid self-punching rivet can be directly punched through a punch of a press machine, the rivet rod passes through plates to be connected, so that part of plates are extruded into the annular groove, and therefore, the plates are firmly connected together. Two-layer plates or multilayer plates can be connected together by using the solid self-punching rivet, the riveting process is simple, and before the plates are riveted, the solid self-punching rivet can be punched to the plates in one step without carrying out opening on the plates; the solid self-punching rivet can be used for riveting various plates difficult to weld, has stable riveting quality, can achieve firm and consistent riveting effect, and has no smoke generation or environmental pollution in a riveting process. When used for riveting, the solid self-punching rivet is easy to realize automation so that production efficiency is greatly improved.

Description

technical field [0001] The invention relates to a rivet, in particular to a solid self-piercing rivet. Background technique [0002] In the process of production and construction, it is often necessary to connect two plates together. At present, the main methods of connecting two plates are: welding or mechanical connection through screws and nuts, pull rivets, pressure rivets, etc. The above two methods are both There are certain disadvantages. First of all, when electric welding is used, if the materials of the two plates are different or there are coatings on the plates, it is difficult to connect the two plates together by welding, and then it is easy to deform the plates by welding, and often in the welding process A large amount of smoke will be produced, which will pollute the environment. However, when mechanically connecting by screws, nuts, pull rivets, and pressure rivets, it is often necessary to pre-drill holes in the plates, so the connection is more troubles...

AI Technical Summary

Problems solved by technology

First of all, when electric welding is used, if the materials of the two plates are different or there are coatings on the plates, it is difficult to connect the two plates together by welding, and then it is easy to deform the plates by welding, and often in the welding process Will produce a lot of smoke, will pollute the environment

However, when mechanically connecting by screws, nuts, pull rivets, pressure rivets, etc., it is often necessary to pre-drill holes in the plate, so the connection is more troublesome, the process is cumbersome, the production efficiency is low, and the speed of production or construction is affected.

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