C-shaped frame squeeze riveting technology and anchor rivet nut thereof

Abstract

The invention relates to a C-shaped frame squeeze riveting technology and an anchor rivet nut thereof. Innovation of the technology comprises a riveting hole is punched at a riveting position of a C-shaped frame; and an anchor rivet nut is selected, a small end of the anchor rivet nut is placed into the hole of the C-shaped frame, and the C-shaped frame and the anchor rivet nut are placed in a squeeze riveting mould to be subjected to squeeze riveting through a squeeze riveter. According to the C-shaped frame squeeze riveting technology and the anchor rivet nut thereof, only metal of the small end of the anchor rivet nut close to the outer wall portion is deformed into a cover shape to be attached to the C-shaped frame riveting hole tightly, and a threaded hole of the small end of the anchor rivet nut is guaranteed to be not deformed. The C-shaped frame squeeze riveting technology and the anchor rivet nut thereof have the advantages that nuts of stainless steel sheets and soft materials of copper, aluminum and the like can be embedded on C-shaped frames through the squeeze riveting technology, and punching tapping or hole flanging is not needed, so that the production efficiency is improved, products have strengths same with strengths of international nut threads and are not easy to loose, and the assembly strength is further improved. The threaded hole of the small end of the anchor rivet nut does not deform, so that the wall thickness of the anchor rivet nut is increased, the threaded hole with length equal to that of the nut can be used, and the anchor rivet nut is applicable to high-strength assembly.

Description

technical field [0001] The invention relates to a C-shaped frame pressure riveting process, and also relates to an expanding rivet nut used in the C-shaped frame pressure riveting process. Background technique [0002] The C-shaped frame is used for the layout and fixing of the feeder in the construction of the communication network. It is a C-shaped opening on one side as a whole, and several nuts for connection or locking are riveted on the C-shaped frame. like figure 1 As shown, when the traditional expansion rivet nut 1 is riveted with the C-shaped frame 2, the small end of the expansion rivet nut 1 is directly turned out to form a cover shape. The disadvantage of this structure is that the nut wall is relatively thin for smooth expansion. , the strength is limited, when it is applied to high-strength assembly, it is easy to slip or even fall off; there is no thread at the valgus, so the number of thread teeth of the same height rivet nut is also significantly reduced ...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, when the traditional expansion rivet nut 1 is riveted with the C-shaped frame 2, the small end of the expansion rivet nut 1 is directly turned out to form a cover shape. The disadvantage of this structure is that the nut wall is relatively thin for smooth expansion. , the strength is limited, when it is applied to high-strength assembly, it is easy to slip or even fall off; there is no thread at the valgus, so the number of thread teeth of the same height rivet nut is also significantly reduced compared with the traditional nut, high-strength assembly When, prone to sliding tooth phenomenon

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