Pressing rivet nut used for rivet pulling process installation
By designing an anti-torsion and anti-push assembly that includes an arc-shaped boss and an inverted conical boss, the problems of instability and poor anti-torsion and anti-push performance after the press-fit nut is riveted are solved, achieving more stable installation and better anti-push performance.
Patent Information
- Application Number
- CN202423243113.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The existing press-fit nuts are not stable after riveting, have poor anti-torsion and anti-push performance, and are affected by installation and adjustment.
A self-clinching nut is designed, which includes a self-clinching nut body and an anti-torsion and anti-push component. The anti-torsion and anti-push component consists of an arc-shaped boss, an inverted conical boss and rectangular banner-style teeth. The structural design of the arc-shaped boss and the inverted conical boss enhances the accommodation and fixing effect of the sheet metal material. Combined with the features of the trapezoidal groove and the inverted conical boss, the anti-push-out performance is improved.
It effectively prevents the nut from rotating, increases the stability and torsion resistance of the nut, reduces the installation force, is suitable for traditional press riveting and pull riveting processes, and improves the anti-push-out performance after riveting.
Smart Images
Figure CN223447441U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to nut technical field especially relates to a kind of for the installation of pressure riveting nut of pull riveting process. BACKGROUND
[0002] Nut is a kind of fastener used universally in various fields such as civilian, commercial, military and so on, especially the most widely used in large machinery such as automobile, aviation and so on.For the automobile industry, considering the demand of rhythm and installation convenience in automobile production process, if the hand tool is nut, and the bolt needs to be tightened, generally the method of fixing nut on sheet metal is adopted, and the nut cannot rotate when the bolt is tightened.
[0003] In order to prevent the nut from rotating, welding nut and pressure riveting nut are usually used to weld the nut on the steel plate, but the welding nut has a very obvious disadvantage, that is, it can only be applied to the steel plate, and the welding process is not easy to control, and a series of problems such as virtual welding, welding slag splashing and welding through (such as the welded sheet metal is too thin) may occur during welding. Virtual welding is easy to cause nut loosening, and welding slag splashing leads to a poor working environment, which threatens the safety of workers, and the welding slag is also easy to splash on the threads of the welded nut, affecting the installation and use of the nut.
[0004] With the pursuit of high quality and light weight of automobile, the pressure riveting nut with sunflower teeth can be used for aluminum and magnesium aluminum alloy materials, but can only be used for sheet metal above 1mm, and the forming process of such pressure riveting nut is difficult, and the subsequent machining method is needed to complete the forming of the sunflower teeth, which is high in cost and low in performance after riveting. The pressure riveting nut is not stable after riveting, and the anti-torsion and anti-push performance is not good, which is affected by installation adjustment. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of pressure riveting nut for pull riveting process installation, to solve the technical problem that the pressure riveting nut in prior art is not stable after riveting, and the anti-torsion and anti-push performance is not good, which is affected by installation adjustment.
[0006] To achieve the above-mentioned purpose, the utility model adopts a kind of pressure riveting nut for pull riveting process installation, including pressure riveting nut body and anti-torsion and anti-push assembly, the inside of pressure riveting nut body is provided with internal thread;
[0007] The anti-torsion and anti-push assembly includes arc boss, inverted cone boss and rectangular banner type sunflower teeth, the arc boss is fixedly connected with the pressure riveting nut body and located above the pressure riveting nut body, the surface of the arc boss has ladder-shaped groove, the inverted cone boss is fixedly connected with the pressure riveting nut body and located above the pressure riveting nut body, the rectangular banner type sunflower teeth are fixedly connected with the pressure riveting nut body and located above the pressure riveting nut body.
[0008] The surface of the arc-shaped boss has a ladder-shaped groove.
[0009] The inverted cone boss is composed of an inclined surface and a circular ring.
[0010] The arc-shaped boss can effectively prevent the nut from rotating and increase the product performance, and when the metal plate is pressed and riveted, the arc-shaped boss can push the metal plate material into the bottom of the inverted cone boss, providing anti-ejection performance, the ladder-shaped groove has an inclined surface to accommodate more metal plate material, and a ladder-shaped step is formed on the metal plate after riveting, which can provide torsional resistance, the rectangular banner type flower tooth and the ladder-shaped groove can be easily inserted into the metal plate, reducing the installation force, and from the aspect of technology, the traditional press riveting process can also be used to install the nut, so that more metal plate material flows into the root of the inverted cone boss feature, and since the ladder-shaped groove and the inverted cone boss feature accommodate more material, the anti-ejection performance is greatly improved, the inverted cone hole boss is composed of an inclined surface and a circular ring, the inner and outer sides of the circular ring have inclined surfaces inclined to the outside of the nut body, and the rivet ring gradually thins from the bottom to the top, thereby forming an inverted cone area suitable for accommodating metal plate material, thereby forming good anti-ejection performance, so that the material better flows into the root of the inverted cone boss feature, and more material is clamped, and the internal thread is used for installing and fixing the hand tool bolt after press riveting. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0012] Figure 1 is a structural schematic view of the press rivet nut for pull riveting process installation of the present application.
[0013] Figure 2 is a top view of the press rivet nut for pull riveting process installation of the present application.
[0014] Figure 3 is a sectional view of the press rivet nut for pull riveting process installation of the present application.
[0015] Figure 4 is a half-sectional view of the press rivet nut for pull riveting process installation of the present application.
[0016] Figure 5It is the section view of the pressed rivet nut after sheet metal riveting of the utility model for pull rivet process installation.
[0017] 1-arc boss, 2-ladder groove, 3-rectangular strip type flower tooth, 4-pressed rivet nut body, 5-inverted cone boss, 6-internal thread. DETAILED DESCRIPTION
[0018] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.
[0019] Please refer to Figures 1-5 , wherein Figure 1 It is the structure schematic diagram of the pressed rivet nut for pull rivet process installation of the utility model, Figure 2 It is the top view of the pressed rivet nut for pull rivet process installation of the utility model, Figure 3 It is the section view of the pressed rivet nut for pull rivet process installation of the utility model, Figure 4 It is the half section view of the pressed rivet nut for pull rivet process installation of the utility model, Figure 5 It is the section view of the pressed rivet nut after sheet metal riveting of the utility model for pull rivet process installation.
[0020] The utility model provides a kind of pressed rivet nut for pull rivet process installation, including pressed rivet nut body 4 and anti-torsion push prevention component, the inside of the pressed rivet nut body 4 is provided with internal thread 6;
[0021] The anti-torsion push prevention component includes arc boss 1, inverted cone boss 5 and rectangular strip type flower tooth 3, the arc boss 1 is fixedly connected with the pressed rivet nut body 4, and is located above the pressed rivet nut body 4, the inverted cone boss 5 is fixedly connected with the pressed rivet nut body 4, and is located above the pressed rivet nut body 4, the rectangular strip type flower tooth 3 is fixedly connected with the pressed rivet nut body 4, and is located above the pressed rivet nut body 4, the surface of the arc boss 1 has ladder groove 2, the inverted cone boss 5 is composed of inclined plane and ring.
[0022] In the embodiment, the arc-shaped boss 1 can effectively prevent the nut from rotating and increase the product performance. When the sheet metal is pressed and riveted, the arc-shaped boss 1 can push the sheet metal material into the bottom of the inverted conical boss 5, thereby providing the anti-extrusion performance. The ladder-shaped groove 2 has a slope to accommodate more sheet metal material and forms a ladder-shaped step on the sheet metal after riveting, thereby providing the anti-torsion performance. The rectangular banner-shaped flower tooth 3 combined with the ladder-shaped groove 2 can be more easily inserted into the sheet metal, thereby reducing the installation force. From the process aspect, the traditional press riveting process or the pull riveting process can be selected to install the nut, so that more sheet metal material flows into the root of the inverted conical boss 5. Since the ladder-shaped groove 2 and the inverted conical boss 5 feature accommodate more material, the anti-extrusion performance is greatly improved. The inverted conical boss 5 is composed of a slope and a circular ring. The inner and outer sides of the circular ring respectively have slopes inclined to the outside of the nut body. The rivet ring gradually thins from the bottom to the top, thereby forming an inverted conical area suitable for accommodating sheet metal material, thereby providing better anti-extrusion performance, so that the material better flows into the root of the inverted conical boss 5 feature and clamps more material. The internal thread 6 is used for installing and fixing the tool bolt after the press riveting.
[0023] The above only discloses a preferred embodiment of the utility model, of course, cannot limit the scope of the utility model, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.
Claims
1. A self-clinching nut for installation by a pull riveting process, comprising a self-clinching nut body, wherein the interior of the self-clinching nut body is provided with an internal thread, characterized in that: It also includes anti-torsion and anti-thrust components; The anti-torsion and anti-thrust component includes an arc-shaped boss, an inverted cone boss and rectangular banner-shaped teeth. The arc-shaped boss is fixedly connected to the rivet nut body and is located above the rivet nut body. The inverted cone boss is fixedly connected to the rivet nut body and is located above the rivet nut body. The rectangular banner-shaped teeth are fixedly connected to the rivet nut body and are located above the rivet nut body.
2. The self-clinching nut for installation by pull riveting process according to claim 1, characterized in that: The surface of the arc-shaped boss is provided with a trapezoidal groove.
3. The self-clinching nut for installation by pull riveting process according to claim 1, characterized in that: The inverted cone boss consists of an inclined surface and a circular ring.