Right-angle self-binding nut and manufacturing method thereof

Abstract

The invention provides a right-angle self-binding nut. According to the right-angle self-binding nut, the upper portion is an outer ring part and connected with a lower bottom piece part, a nut part is embedded into the outer ring part, the outer ring part is made of plastic or rubber, and the bottom piece part and the nut part are made of metal. The invention further provides a corresponding manufacturing method. According to the manufacturing method, the bottom piece part is manufactured through punching or welding, the nut part is manufactured through machining, the outer ring part is formed and connected with the bottom piece part at the same time through injection molding, and then the nut part is embedded into the outer ring part through cold pressing or hot melting. By the adoption of the right-angle self-binding nut and the manufacturing method thereof, bulk production of products can be achieved, standard components can be designated for all the parts, component manufacturing technology and component combining technology can be standardized, material waste is reduced, components can be combined at any time, and therefore production cost is reduced and production efficiency is improved.

Description

technical field [0001] The invention relates to the field of manufacturing mechanical parts, in particular to a right-angle self-fastening nut and a manufacturing method thereof. Background technique [0002] Right-angle self-fastening nuts are widely used for installation in right-angle areas, such as corners of computer cases, positioning PCB boards (Printed Circuit Board, printed circuit boards) in the case, clothes hangers in the compartment, etc. Using self-fastening technology to replace traditional welding saves materials, reduces installation steps, and provides more reliable fastening connections. [0003] There are two techniques for manufacturing right-angle self-clinching nuts in the prior art, one is powder metallurgy technology, and the other is cold-drawn and cold-rolled heterosexual rod technology, followed by surface treatment. [0004] Powder metallurgy is a process technology for producing metal powder or using metal powder (or a mixture of metal powder a...

AI Technical Summary

Problems solved by technology

Due to the cold hardening caused by continuous cold deformation, the strength and hardness of hard rolled coils increase, and the ductility and plastic index decrease, so the stamping performance will deteriorate, so cold rolling can only be used for parts with simple deformation

When preparing right-angle self-clinching nuts, the use of cold-drawn and cold-rolled processes will increase the complexity of raw material procurement and manufacturing processes, thereby increasing costs

Because the cold drawing and cold rolling process is only suitable for parts with simple deformation, it cannot form the detailed areas such as grooves or holes well, so the scrap rate is relatively high. Not only that, the life of the die used for cold drawing and cold rolling is extremely poor, and the comprehensive As mentioned above, the use of cold drawing and cold rolling process makes the production cost high

[0006] The above shortcomings lead to huge cost input when increasing the output of right-angle self-clinching nuts. Therefore, it is necessary to invent a new type of right-angle self-clinching nuts that are easy to manufacture, and a corresponding relatively simple and convenient manufacturing method to reduce the cost of the product. Production cost, increase yield

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