Pulling riveting fastener

Abstract

The invention discloses a pulling riveting fastener. The pulling riveting fastener is composed of a pulling rivet and a lantern ring, wherein the pulling rivet and the lantern ring are in clearance fit; the pulling rivet comprises an eye ring, a step section, a polish rod section, a locking groove section and a grasping groove section which are integrally and sequentially arranged; the lantern ring comprises a flange section and a straight barrel section which are integrated; the locking groove section is composed of a ring groove section and / or a threaded groove section; the eye ring is a through hole which is formed in the head of the pulling rivet and is perpendicular to an axial direction of the pulling rivet; convex points higher than a ring surface are arranged at intervals on the ring surface at the side, connected with the straight barrel section, of the flange section of the lantern ring; a clamping gear with a groove structure is arranged on the inner wall of the straight barrel section of the lantern ring. According to the pulling riveting fastener, the eye ring, the fastener and a workpiece are of an integrated structure, a compact pulling rivet structure is formed by the step section, the polish rod section, the ring groove section, the threaded groove section and the grasping groove section, the clamping gear structure can be screwed into the locking threaded section of the rivet, and then the lantern ring and the rivet are pre-assembled together; and the convex point structure is used as an indication mark of qualified extrusion deformation length, so that fastening operation can be more conveniently and accurately controlled.

Description

technical field [0001] The invention belongs to the technical field of riveting, in particular to the design and manufacture of a rivet riveting fastener for connecting composite plates or metal plates, and belongs to riveting (B21J) and fasteners (F16B) of metal machining. Background technique [0002] Blind rivets are commonly used fastening joints in the existing fastening connection methods, and are generally used for the connection of parts that need to be bolted or riveted. When using the fastening operation, use special equipment for rivets to clamp the two parts to be combined, squeeze the metal of the annular collar and fill the pits of the multiple annular grooves of the bolt, so that the collar and the The pegs are tightly combined and fastened. Blind rivet fasteners have the same fastening force and never loosen after assembly. [0003] The existing blind rivets are simple to fasten and have a single function. During the fastening operation, it is often impossi...

AI Technical Summary

Problems solved by technology

[0003] The existing blind rivets are simple to fasten and have a single function. During the fastening operation, it is often impossible to effectively determine the completion status of the fastening operation, and cannot meet the continuously developing fastening processing needs.

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