Pressing rivet bushing and connecting mechanism

Abstract

The utility model discloses a pressing rivet bushing and a connecting mechanism. The pressing rivet bushing comprises a main body part, one end face of the main body part is provided with a rivet turning part which extends outwards in the axial direction of the main body part, and the rivet turning part and the main body part form a step-shaped structure; a plurality of limiting parts which are arranged at intervals in the circumferential direction are arranged on the inner wall of the main body part, the limiting parts can extend to the inner wall of the flanging and riveting part, one end face of each limiting part is flush with the end face of the main body part, the other end face of each limiting part and the end face of the flanging and riveting part form a step-shaped structure, and the limiting parts extend inwards in the radial direction. The pressing rivet bushing has the advantages that the limiting part can limit the freedom degree of the pressing rivet bushing in the horizontal direction, positioning can be achieved during installation, the pressing rivet bushing is prevented from rotating when the pressing rivet bushing and a plate are installed so as to adapt to the complex pressing rivet environment, it is guaranteed that the pressing rivet bushing is perfectly matched with the plate in the pressing rivet process, the pressing rivet stability and accuracy are greatly improved, and the pressing rivet bushing is convenient to install and maintain. And the service life of the pressing rivet bushing is prolonged, and the frequency of maintenance and replacement is reduced, so that the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of riveted parts, in particular to a pressure riveted bushing and a connecting mechanism. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] In the prior art, the inner hole of the bushing is a round hole, which is not suitable for some special positioning requirements. The product is prone to rotation during installation, thereby affecting the riveting stability of the connection mechanism.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present invention and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present invention. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a riveting bushing and a connecting mechanism in view of the deficiencies in the prior art, wherein the limiting portion can limit the horizontal freedom of the riveting bushing, can achieve positioning during installation, and prevent the riveting bushing and the plate from rotating during installation, so as to adapt to complex riveting environments.

[0006] The embodiment of the present application discloses a riveted bushing, comprising:

[0007] A main body, wherein the main body is an annular structure;

[0008] A riveting part, wherein one end surface of the main body is provided with a riveting part extending outwardly along the axial direction thereof, the riveting part and the main body form a step-shaped structure, and the outer diameter of the riveting part is smaller than the outer diameter of the main body;

[0009] Among them, the inner wall of the main body is provided with a plurality of limiting portions arranged at intervals along the circumferential direction, the limiting portions can extend to the inner wall of the riveted portion, and one end face of the limiting portion is flush with the end face of the main body, and the other end face of the limiting portion forms a step-like structure with the end face of the riveted portion, and the plurality of limiting portions extend radially inward.

[0010] Furthermore, in the above-mentioned riveted bushing, a material containing groove which is recessed inwardly along the axial direction of the main body is provided at the connection between the main body and the outer wall of the riveted part.

[0011] Furthermore, in the above-mentioned riveted bushing, the main body, the riveted part and the limiting part are an integrally formed structure.

[0012] Furthermore, in the above-mentioned riveted bushing, the inner wall of the limiting portion includes a linear straight line segment and an arc segment connected to the straight line segment.

[0013] Furthermore, in the above-mentioned riveted bushing, the minimum distance between the two opposite limiting portions is smaller than the inner diameter of the riveted portion.

[0014] The embodiment of the present application also discloses a connection mechanism, including:

[0015] A first plate, wherein the first plate is pre-set with a mounting hole;

[0016] As described above, the mounting hole of the first plate is sleeved on the outer wall of the riveted portion, the first plate is abutted against the end surface of the main body, and before the first plate is connected to the riveted bushing, the outer diameter of the riveted portion is smaller than the diameter of the mounting hole;

[0017] A mold assembly, the mold assembly comprising an upper mold, a lower mold and an installation mold, the upper mold is arranged on the top of the riveting part and the first plate, the lower mold is arranged at one end of the main body away from the riveting part, and the installation mold is arranged in the inner hole of the riveting part;

[0018] Among them, the installation mold enters the inner hole of the riveting part and extrude the riveting part outward along its radial direction, and the upper mold presses the riveting part. Under the joint action of the upper mold, the lower mold and the installation mold on the first plate, part of the material of the first plate enters the material containing groove through the extrusion of the riveting part and the upper mold, and the top of the first plate is flush with the top of the riveting part, so that the riveting part is riveted to the first plate.

[0019] Furthermore, in the above-mentioned connection mechanism, after the first plate is connected to the riveting bushing, the inner diameter of the riveted portion gradually increases from the main body toward the riveted portion.

[0020] In summary, the above structure adopted in the embodiment of the utility model has the following advantages:

[0021] The self-riveting bushing and connecting mechanism described in the utility model, the limiting part can limit the horizontal freedom of the self-riveting bushing, can achieve positioning during installation, and prevent the self-riveting bushing from rotating when installing with the plate, so as to adapt to complex self-riveting environments and ensure perfect matching with the plate during the self-riveting process, greatly improving the stability and accuracy of self-riveting, reducing the scrap rate and defective product rate, thereby extending the service life of the self-riveting bushing, reducing the frequency of maintenance and replacement, and thus reducing production costs.

[0022] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 and Figure 2 is a schematic diagram of a pressure-riveted bushing in an embodiment of the present application;

[0025] Figure 3 is a cross-sectional view of a riveted bushing in an embodiment of the present application;

[0026] Figure 4 is a side view of a pressure-riveted bushing in an embodiment of the present application;

[0027] Figure 5 is a top view of a riveted bushing in an embodiment of the present application;

[0028] Figure 6 is a bottom view of a pressure-riveted bushing in an embodiment of the present application;

[0029] Figure 7 It is a schematic diagram of the installation of the connecting mechanism in the embodiment of the present application.

[0030] The figure numbers of the above drawings are: 1. main body; 2. riveting part; 3. limiting part; 31. straight line segment; 32. arc segment; 4. material storage groove; 5. first plate; 6. upper mold; 7. lower mold. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0032] The following is an explanation of the implementation of the utility model through specific specific embodiments. Those skilled in the art can understand the advantages and effects of the utility model from the contents disclosed in this specification. The utility model can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without deviating from the concept of the utility model. In addition, the drawings of the utility model are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following implementation methods will further explain the relevant technical contents of the utility model in detail, but the disclosed contents are not intended to limit the scope of protection of the utility model.

[0033] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0034] Reference Figures 1 to 6 As shown, the embodiment of the present application discloses a riveted bushing, comprising:

[0035] A main body 1, wherein the main body 1 is an annular structure;

[0036] A riveting portion 2, wherein one end surface of the main body 1 is provided with a riveting portion 2 extending outwardly along its axial direction, the riveting portion 2 and the main body 1 form a step-like structure, and the outer diameter of the riveting portion 2 is smaller than the outer diameter of the main body 1;

[0037] The inner wall of the main body 1 is provided with a plurality of limiting parts 3 arranged at intervals along the circumferential direction, the limiting parts 3 can extend to the inner wall of the riveted part 2, and one end face of the limiting part 3 is flush with the end face of the main body 1, and the other end face of the limiting part 3 forms a step-like structure with the end face of the riveted part 2, and the plurality of limiting parts 3 extend radially inward. In this embodiment, a group of limiting parts 3 is an axisymmetric structure, the length of the limiting part 3 is less than the diameter of the main body, the limiting part 3 can limit the horizontal degree of freedom, can achieve positioning during installation, and prevent the riveting bushing from rotating when it is installed with the plate, so as to adapt to the complex riveting environment, ensure perfect matching with the plate during the riveting process, and greatly improve the stability and accuracy of the riveting.

[0038] Specifically, in this embodiment, a material receiving groove 4 which is recessed inwardly along the axial direction of the main body 1 is provided at the connection between the main body 1 and the outer wall of the riveted portion 2 .

[0039] Specifically, refer to Figure 2 and Figure 5In this embodiment, the main body 1, the riveting part 2 and the limiting part 3 are an integrally formed structure. Figure 6 The inner wall of the limiting portion 3 includes a linear straight line segment 31 and an arc segment 32 connected to the straight line segment 31. The inner hole formed by the main body 1 and the limiting portion 3 is a waist-shaped hole structure, which can limit the horizontal degree of freedom and meet the special positioning requirements of installation positioning and anti-rotation of parts.

[0040] Specifically, in this embodiment, the minimum distance between the two opposite limiting portions 3 is smaller than the inner diameter of the riveted portion 2 .

[0041] Reference Figure 7 , this embodiment also discloses a connection mechanism, including:

[0042] A first plate 5, wherein the first plate 5 is pre-set with a mounting hole;

[0043] As described above, the mounting hole of the first plate 5 is sleeved on the outer wall of the riveted part 2, and the first plate 5 is abutted against the end surface of the main body 1. Before the first plate 5 is connected to the riveted bushing, the outer diameter of the riveted part 2 is smaller than the diameter of the mounting hole.

[0044] A mold assembly, the mold assembly includes an upper mold 6, a lower mold 7 and an installation mold (not shown in the figure), the upper mold 6 is arranged on the top of the riveting part 2 and the first plate 5, the lower mold 7 is arranged at one end of the main body 1 away from the riveting part 2, and the installation mold is arranged in the inner hole of the riveting part 2;

[0045] Among them, the installation mold enters the inner hole of the riveting part 2 and extrude the riveting part 2 outward along its radial direction, and the upper mold 6 presses the riveting part 2. Under the joint action of the upper mold 6, the lower mold 7 and the installation mold on the first plate 5, part of the material of the first plate 5 enters the material storage groove 4 through the extrusion of the riveting part 2 and the upper mold 6, and the top of the first plate 5 is flush with the top of the riveting part 2, so that the riveting part 2 is riveted to the first plate 5.

[0046] Specifically, in this embodiment, after the first plate 5 is connected to the riveting bushing, the inner diameter of the riveted portion 2 gradually increases from the main body 1 toward the riveted portion 2 .

[0047] With the above structure, the first plate 5 can be a sheet metal part of an automobile. During the riveting process between the first plate 5 and the riveting bushing, the mounting hole of the first plate 5 is sleeved on the outer wall of the riveting part 2. A mold assembly is used, and the mounting mold is set in the inner holes of the riveting part 2 and the main body 1. The mounting mold enters the inner hole of the riveting part 2 and extrude the riveting part 2 outward in its radial direction. The upper mold 6 presses the riveting part 2. Under the joint action of the upper mold 6, the lower mold 7 and the mounting mold on the first plate 5, part of the material of the first plate 5 passes through the riveting part 2 and the upper mold. 6 is extruded into the material storage groove 4, and the top of the first plate 5 is flush with the top of the riveting part 2, so that the riveting part 2 is riveted to the first plate 5, and the limiting part 3 can limit the horizontal freedom of the riveting bushing, and can achieve positioning during installation to prevent the riveting bushing from rotating when the plate is installed, so as to adapt to the complex riveting environment and ensure perfect matching with the plate during the riveting process, which greatly improves the stability and accuracy of riveting, reduces the scrap rate and defective rate, and thus extends the service life of the riveting bushing, reduces the frequency of maintenance and replacement, and thus reduces the production cost.

[0048] The contents disclosed above are only preferred feasible embodiments of the present utility model, and are not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the specification and drawings of the present utility model are included in the scope of the patent application of the present utility model.

[0049] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. The present application can be used in many general or special computer system environments or configurations. For example: personal computers, server computers, handheld devices or portable devices, tablet devices, multi-processor systems, microprocessor-based systems, set-top boxes, programmable electronic devices, network PCs, minicomputers, mainframe computers, distributed computing environments including any of the above systems or devices, etc.

[0050] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present application without departing from the spirit of the present application. It is intended that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A riveted bushing, characterized in that: include: A main body, wherein the main body is an annular structure; A riveting part, wherein one end surface of the main body is provided with a riveting part extending outwardly along the axial direction thereof, the riveting part and the main body form a step-shaped structure, and the outer diameter of the riveting part is smaller than the outer diameter of the main body; Among them, the inner wall of the main body is provided with a plurality of limiting portions arranged at intervals along the circumferential direction, the limiting portions can extend to the inner wall of the riveted portion, and one end face of the limiting portion is flush with the end face of the main body, and the other end face of the limiting portion forms a step-like structure with the end face of the riveted portion, and the plurality of limiting portions extend radially inward.

2. The self-riveting bushing according to claim 1, characterized in that: A material containing groove which is recessed inwardly along the axial direction of the main body is provided at the connection between the main body and the outer wall of the riveting part.

3. The self-riveting bushing according to claim 2, characterized in that: The main body, the riveting part and the limiting part are an integrally formed structure.

4. The self-riveting bushing according to claim 2, characterized in that: The inner wall of the limiting portion includes a linear straight line segment and an arc segment connected to the straight line segment.

5. The self-riveting bushing according to claim 2, characterized in that: The minimum distance between the two opposite limiting portions is smaller than the inner diameter of the riveting portion.

6. A connecting mechanism, characterized in that: include: A first plate, wherein the first plate is pre-set with a mounting hole; The self-riveting bushing according to any one of claims 2 to 5, wherein the mounting hole of the first plate is sleeved on the outer wall of the riveted portion, the first plate abuts against the end face of the main body, and before the first plate is connected to the self-riveting bushing, the outer diameter of the riveted portion is smaller than the diameter of the mounting hole; A mold assembly, the mold assembly comprising an upper mold, a lower mold and an installation mold, the upper mold is arranged on the top of the riveting part and the first plate, the lower mold is arranged at one end of the main body away from the riveting part, and the installation mold is arranged in the inner hole of the riveting part; Among them, the installation mold enters the inner hole of the riveting part and extrude the riveting part outward along its radial direction, and the upper mold presses the riveting part. Under the joint action of the upper mold, the lower mold and the installation mold on the first plate, part of the material of the first plate enters the material containing groove through the extrusion of the riveting part and the upper mold, and the top of the first plate is flush with the top of the riveting part, so that the riveting part is riveted to the first plate.

7. The connection mechanism according to claim 6, characterized in that: When the first plate is connected to the riveting bushing, the inner diameter of the riveted portion gradually increases from the main body toward the riveted portion.

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