Novel self-locking nut of expansion riveting supporting plate

Abstract

According to the novel self-locking nut for the flaring rivet supporting plate, a thin-wall cylindrical flaring section is arranged on one side of the nut, three U-shaped grooves are evenly distributed in the thin-wall cylindrical flaring section, and the groove depth of each U-shaped groove is one half of the length of the thin-wall cylindrical flaring section. According to the utility model, the flaring section does not need to be locally annealed in the production process, so that the part processing flow is reduced, and the part production and processing operation difficulty is reduced; the influence of the structure and hardness of the flaring section on the performance of the part is avoided, and the rigidity and strength of the structure of the flaring section are effectively guaranteed; by additionally arranging the three U-shaped grooves, the cracking problem of the flaring section is effectively solved, the use risk of a product is avoided, meanwhile, the installation force is reduced, and the installation difficulty of the product is lowered.

Description

Technical Field

[0001] This utility model relates to the flared section structure of a self-locking nut for a rivet support plate, belonging to the field of fastener technology. Background Technology

[0002] Currently, the self-locking nuts with flaring structures commonly used in the industry have a thin-walled cylindrical flaring section. The following problems exist in the actual machining of these parts:

[0003] 1. High difficulty in parts processing and control: During the parts processing, a local annealing process needs to be added to the flared section. By adjusting the microstructure and hardness of the flared section through local heating, it is ensured that the flared section can meet the actual use requirements without cracking and that the strength after annealing and softening still meets the requirements of strength and rigidity. The addition of local annealing is very difficult. First of all, this process is a special process, which has strict requirements on personnel operation skills, processing equipment precision, heating coil material and specifications, heating temperature control, heating time and qualification judgment.

[0004] 2. During the actual processing of the parts, repeated adjustments are required through the first piece. The control parameters are determined by metallographic examination of the microstructure of the flared section and the hardness change of the flared section to achieve batch quality consistency. Since 100% inspection cannot be achieved, the risk of cracking in the flared section of the parts cannot be fully controlled, which increases the safety risk of the product during actual use. Utility Model Content

[0005] The present invention aims to solve the technical problem that the flared section of the self-locking nut on the rivet support plate is prone to cracking during actual processing and cannot be fully controlled.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A novel self-locking nut for a riveting support plate, wherein one side of the nut is a thin-walled cylindrical flared section, and the thin-walled cylindrical flared section has three U-shaped grooves evenly distributed thereon, and the depth of each U-shaped groove 2 is half the length of the thin-walled cylindrical flared section 1.

[0008] The beneficial effects of adopting the above technical solution are:

[0009] 1. This utility model eliminates the need for local annealing of the flared section during production, reducing the part processing steps and lowering the difficulty of part production and processing; it avoids the influence of the microstructure and hardness of the flared section on the part performance, effectively ensuring the rigidity and strength of the flared section structure.

[0010] 2. By adding three U-shaped grooves, this utility model effectively solves the cracking problem in the flared section, avoids the risk of product use, and at the same time reduces the installation force and lowers the installation difficulty of the product. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the flared section structure of the self-locking nut for the riveted support plate in the prior art.

[0012] Figure 2 for Figure 1 Left view.

[0013] Figure 3 This is a schematic diagram of the flared section structure of the self-locking nut for the riveting bracket of this utility model.

[0014] Figure 4 for Figure 3 Left view.

[0015] In the figure: 1-thin-walled cylindrical flared section, 2-U-shaped groove 2. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0017] like Figure 3 As shown, a novel self-locking nut for a flared rivet support plate is disclosed. One side of the nut is a thin-walled cylindrical flared section 1, on which three U-shaped grooves 2 are evenly distributed. The depth of each U-shaped groove 2 is half the length of the thin-walled cylindrical flared section 1. The U-shaped grooves 2 effectively solve the cracking problem of the flared section, avoid the risk of product use, and at the same time reduce the installation force and reduce the installation difficulty of the product.

Claims

1. A novel self-locking nut for a riveting support plate, wherein one side of the nut is a thin-walled cylindrical flared section (1), characterized in that: The thin-walled cylindrical flared section (1) is evenly distributed with three U-shaped grooves (2), and the groove depth of each U-shaped groove (2) is half the length of the thin-walled cylindrical flared section (1).

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