Half-round head rivet

Abstract

The invention provides a half-round head rivet comprising a half-round head cap. A draw bar is arranged below the half-round head cap, the front end of the draw bar has guide taper of 30 degrees, an R circular arc is arranged at the joint between the half-round head cap and the draw bar, and the size of the R of the R circular arc is 0.3-0.4mm. The half-round head rivet has the advantages that the guide taper plays a role in guiding during assembly; stress concentration is avoided; the half-round head rivet is attractive and capable of preventing a sharp workpiece edge from scratching people, and rivet edge positions cannot collide to cause mutual damage during use; the guide taper of 30 degrees guarantees proper draw force of the draw bar, and a guide angle is most reasonable; connecting strength between the half-round head cap and the draw bar is guaranteed by the aid of the R circular arc, stress concentration is further avoided, buffering effect is achieved, and collision between the half-round head cap and a riveted component is eliminated; the half-round head rivet is simple in structure, economical and practical and solves the problems of inconvenience and damage to people and components during assembly.

Description

technical field [0001] The invention relates to a connecting piece in automobile parts, in particular to a half round head rivet. Background technique [0002] The standard parts in auto parts generally adopt national standards. With the improvement of technology and the needs of production, some parts may no longer meet the actual needs of production. There are many unreasonable things in the use process, such as the connection of automobile beam The structure of the rivet is that there is a straight handle rod under the cap of the half round head. During the actual assembly process of the half round head rivet, the assembly is inconvenient. Burrs are easy to scratch parts that need to be riveted and scratch people. Contents of the invention [0003] In order to solve the problem that the half-round head rivet can safely enter the rivet hole at one time, the present invention proposes a half-round head rivet. [0004] For this reason, the technical solution of the prese...

AI Technical Summary

Problems solved by technology

[0002] The standard parts in auto parts generally adopt national standards. With the improvement of technology and production needs, some parts may no longer meet the actual needs of production. There are many unreasonable things in the use process, such as the connection of automobile beam The structure of the rivet is that there is a straight handle rod under the cap of the half round head. The half round head rivet is inconvenient to assemble in the actual assembly process. The main reason is that the straight handle rod cannot enter the riveting hole at once, and there is a flash at the end Burrs are easy to scratch parts that need to be riveted and scratch people

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