Making method of constant-force self-locking nuts and constant-force self-locking nuts

Abstract

The invention discloses a making method of constant-force self-locking nuts and the constant-force self-locking nuts. According to the making method, the purpose of reducing material waste is achieved by sharing one screwing head among multiple self-locking nuts; the purpose of controlling the screwing degree of the self-locking nuts is achieved through neck breaking grooves between the self-locking nuts and the screwing head; the locking function is achieved through compressive deformation of threads on the self-locking nuts; the sealing function is achieved through nylon rings arranged on the end faces of the self-locking nuts; thus, the functions of material saving, constant force maintaining, locking and sealing are integrated in one part, and finally the purposes of reducing the production cost and effectively controlling the product weight are achieved. According to the making method of the constant-force self-locking nuts and the constant-force self-locking nuts, the single locking structure of traditional high-locking nuts is changed, the functional diversification of the high-locking nuts is achieved, and one machined constant-force self-locking nut can be separated into three high-locking nuts of the same specification or different specifications after being assembled; cost is reduced, the utilization rate of materials is effectively controlled, safety and reliability are high, mechanical performance is stable, and maintenance is convenient.

Description

technical field [0001] The invention relates to a method for manufacturing a constant-force self-locking nut and the constant-force self-locking nut, belonging to the technical field of non-standard fastener production. Background technique [0002] The demands placed on fastening nuts in the aerospace sector are very high. Not only requires self-locking function. Some nuts also have tightening torque requirements. When tightening, the nut cannot be tightened too tightly, nor can it be tightened too loosely. [0003] At present, nuts with tightening torque requirements are usually assembled with a fixed force wrench. The fixed force wrench is larger than the general wrench, and cannot be used in some places with narrow space structures. Use has certain limitations. [0004] In order to overcome the above-mentioned technical problems, some nuts adopt a broken neck structure. Its structure is to set a broken neck groove with a small cross-sectional area on the nut. When i...

AI Technical Summary

Problems solved by technology

[0005] However, the existing broken neck nuts are usually provided with a screw block for each nut. After the screw block is disconnected from the nut, it is useless, resulting in material waste of

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