CN218440148U

CN218440148U - Coupling mechanism and pressure rivet nut

Info

Publication number: CN218440148U
Application number: CN202221406248.4U
Authority: CN
Inventors: 王明亮; 陈小明; 汪园园
Original assignee: Penn Engineering Automotive Fasteners Kunshan Co ltd
Current assignee: Penn Engineering Automotive Fasteners Kunshan Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2023-02-03
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses a coupling mechanism and pressure rivet nut, including the panel that has the dysmorphism hole and the pressure rivet nut, the pressure rivet nut is including the main part that has first end and second end, and the main part is including setting up the heterotypic portion between first end and second end, and the heterotypic portion of main part is worn to establish in the dysmorphism hole of panel, and the second end of main part has 90 sections of the deformation that outwards extend of relative main part through the deformation formation, the lateral wall laminating of deformation and panel. The utility model discloses an among the coupling mechanism, press and rivet the nut and rivet on panel through pressing, and after connecting, the type variable part that should press and rivet the nut exceeds panel requirement distance in order to play limiting displacement. The second end of the main body is flanged towards the direction of the plate to form a deformed part, so that the final length of the pressure riveting nut connected to the plate is smaller to meet the requirement of fastening connection. Meanwhile, the irregular part of the regular polygon matched with the irregular hole of the plate is adopted, so that the torsion resistance and tensile strength resistance can be improved in the connection process.

Description

Coupling mechanism and pressure riveting nut

Technical Field

The utility model relates to a fastener field especially relates to a coupling mechanism and pressure rivet nut.

Background

Currently, for some special design occasions, for example, for applying to the structure of a battery pack, a nut is required to be fixedly connected with a plate material. Meanwhile, due to the special requirements of the design occasion, the height of the nut after connection is required to be smaller so as to meet the space requirement, and a part of the height of the nut after connection is required to be exposed out of the plate so as to play a limiting role.

In the prior art, the above requirements are generally met by welding nuts. The welding nut comprises a welding table and a boss convexly arranged on the welding table. The surface of the welding table can be welded with the plate, and the lug boss penetrates through the plate and protrudes relative to the plate.

However, it is obvious that the welding connection is complicated and inefficient.

SUMMERY OF THE UTILITY MODEL

The inventor creatively discovers that if the rivet nut in the prior art is adopted, the rivet nut is shortened after deformation due to the influence of the thickness of the flange, the thickness of the plate, the thickness of a riveting deformation area and the like, and the length of insufficient threads meets the requirement that the assembly is less than 9 mm.

If the rivet pressing nut in the prior art is adopted, although the total length can meet the requirement, the boss which is higher than the mounting surface by the designated thickness does not exist after the rivet pressing nut is installed. In addition, the press riveting nut in the prior art can only open convex hull holes for high-strength plates, and the actual application scene is a flat hole shape.

The utility model aims to solve the technical problem that a not enough to prior art provides a coupling mechanism and presses and rivets nut, at least one in it can solve above-mentioned problem.

The embodiment of the application discloses coupling mechanism, including panel and the rivet pressing nut that has dysmorphism hole, the rivet pressing nut is including the main part that has first end and second end, the main part is including setting up first end with heterotypic portion between the second end, the heterotypic portion of main part wears to establish the dysmorphism of panel is downthehole, the second end of main part has the relative through the deformation formation 90 outwards extended deformation portion of main part, deformation portion with the lateral wall laminating of panel.

Preferably, the deformed part of the main body has a predetermined height from the plate material closest thereto.

Preferably, the distance between the first end of the clinch nut and the swage is no more than 9 mm.

Preferably, before the deformation, the second end of the main body is annular, and after the deformation, the deformation portion includes a plurality of deformation units outwardly flanged in the circumferential direction.

The embodiment of the application discloses a pressure riveting nut for being connected with panel, panel has the heterotypic hole that the cross-section is regular polygon, includes: the main part that extends along an axial direction, the main part has along it first end and the second end that the axial direction is relative, be provided with in the main part be located its first end with heterotypic portion between the second end, the shape adaptation of heterotypic portion and heterotypic hole, the second end of main part can take place outside type deformation and form the deformation portion, the deformation portion with preset distance has between the lateral wall of panel, the heterotypic portion of main part the deformation portion can with panel fixed connection.

Preferably, the length of the clinch nut in the direction of its axis is no more than 9 mm after the second end of the body is allowed to be deformed outwardly.

Preferably, the deformation angle between the deformation and the main body is 90 °.

Preferably, before the second end of the main body can be deformed outwards, the second end of the main body is annular, and after the second end of the main body can be deformed outwards, the deformed part comprises a plurality of deformed units which are flanged outwards along the circumferential direction.

Preferably, the inner side of the main body is provided with an internal thread, and the length of the internal thread is not more than 70% of the length of the pressure riveting nut along the axial direction of the pressure riveting nut after the pressure riveting nut can be deformed outwards at the second end of the main body.

The embodiment of the utility model provides an in coupling mechanism the pressure rivet nut through the form connection of riveting on panel to after connecting, the type variable part that should press the rivet nut exceeds panel requirement distance, in order to play limiting displacement. The second end of the main body is flanged towards the direction of the plate to form a deformed part, so that the final length of the pressure riveting nut connected to the plate is smaller to meet the requirement of fastening connection. Meanwhile, the regular polygon special-shaped part matched with the special-shaped hole of the plate is adopted, so that the torsion resistance and tensile strength resistance can be improved in the connection process. In conclusion, the riveting nut can meet the requirement of multiple directions by combining the characteristic of torsion resistance and the characteristic of high pulling force of flanging riveting.

For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description and accompanying drawings, which are provided for purposes of illustration and description, and are not intended to limit the invention.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present specification, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.

Fig. 1 shows a perspective view of a clinch nut before forming in an embodiment of the present application.

Fig. 2 shows a front view of fig. 1.

Fig. 3 shows a top view of fig. 1.

Fig. 4 shows a cross-sectional view of fig. 1.

Fig. 5 shows a schematic structural diagram of the connection mechanism in the embodiment of the present application.

The figures of the above drawings are numbered: 1. a main body; 11. a first end; 12. a second end; 13. a special-shaped part; 14. a deformation part; 15. an internal thread; 2. a plate material.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present specification without making any creative effort shall fall within the protection scope of the present specification.

The following embodiments are provided as specific examples, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The present invention may be practiced or carried out in other different embodiments, and various modifications and changes may be made in the details of this description based on the different points of view and applications without departing from the spirit of the present invention. The drawings of the present invention are merely schematic illustrations, and are not drawn to scale, but are described in advance. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

It will 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 used primarily to distinguish one element from another element or from one signal to another signal. Additionally, the term "or" as used herein is intended to include any one or combination of the associated listed items, as the case may be.

Referring to fig. 1 to 4, an embodiment of the present application discloses a clinch nut for connecting with a sheet material 2, where the sheet material 2 has a special-shaped hole with a regular polygon cross section, and the clinch nut includes: the main body 1 extends along an axial direction, the main body 1 is provided with a first end 11 and a second end 12 which are opposite along the axial direction, a special-shaped part 13 which is positioned between the first end 11 and the second end 12 of the main body 1 is arranged on the main body 1, the special-shaped part 13 is matched with the shape of a special-shaped hole, the second end 12 of the main body 1 can be outwards deformed to form a deformed part 14, the deformed part 14 has a preset distance from the side wall of the plate, and the special-shaped part 13 and the deformed part 14 of the main body 1 can be fixedly connected with the plate 2.

Before the deformation occurs, the second end 12 of the body 1 is annular. The section of the special-shaped part 13 is a regular hexagon. The regular hexagonal special-shaped part 13 and the regular hexagonal special-shaped hole are adopted because the characteristic of hexagonal torsion resistance and the characteristic of upset riveting high pull-out force meet the requirement of multiple directions. Of course, the cross section of the profiled portion 13 may also be adjusted as required.

The first end 11 of the body of the clinch nut is placed into the upper die of the clincher and the second end 12 of the clinch nut is passed into the profiled hole of the panel 2 from the first side of the panel 2. The squeeze riveter puts a lower die on the second side of the plate 2. When the robot presses down the first end 11 of the clinch nut, the clinch nut is gradually moved towards the lower die until the second end 12 of the clinch nut flows to the space between the lower die and the second side of the sheet 2. At this time, the shaped portion 13 of the body is engaged with the shaped hole of the plate 2. And the second end 12 of the clinch nut flows to form a swage 14 extending outwardly in the axial direction. The angle between the deformed part 14 and the main body 1 is 90 degrees. The deformed portion 14 is attached to the side wall of the plate 2. Whereby said deformation 14 comprises a plurality of circumferentially outwardly deformed units after the second end 12 of said body 1 is outwardly deformed.

In this embodiment, the length of the clinch nut in the axial direction thereof is not more than 9 mm after the second end 12 of the body 1 is allowed to be deformed outward. Of course, the length between the first end 11 of the main body 1 and the plate 2 closest thereto can be adjusted as required to meet the length requirement of the clinch nut along the axial direction thereof after the second end 12 of the main body 1 can be deformed outward. Of course, the distance h (shown in fig. 5) between the deformed part 14 and the side wall of the plate 2 closest to the deformed part must be a certain length h to meet the limit requirement in practical situations. The second end 12 of the body 1 has a smaller cross-sectional radius than the first end 11 of the body 1 before swaging, and the swaged portion 14 has an outer diameter greater than the cross-sectional radius of the first end 11 of the body 1 after swaging.

To meet the connection requirement, the inner side of the main body 1 is provided with an internal thread 15 to be fixedly connected with other mechanisms. The length of the internal thread 15 is. Compared with the rivet nut, even if the length of the rivet nut is small, for example, only 9 mm after deformation, the effective length of the internal thread 15 can still be large, that is, the use requirement can be met. For example, the length of the internal thread is no greater than 70% of the length of the clinch nut in the axial direction thereof after being outwardly swaged at the second end of the body.

Referring to fig. 5, the embodiment of the application discloses a connection mechanism, which includes a plate 2 having a special-shaped hole and a clinch nut, the clinch nut includes a main body 1 having a first end 11 and a second end 12, the main body 1 includes a special-shaped portion 13 disposed between the first end 11 and the second end 12, the special-shaped portion 13 of the main body 1 is inserted into the special-shaped hole of the plate 2, the second end 12 of the main body 1 has a deformed portion 14 formed by deformation and extending outwards relative to the main body 190 °, and the deformed portion 14 is attached to a side wall of the plate 2.

By means of the structure, the press riveting nut of the connecting mechanism is connected to the plate 2 in a press riveting mode, and after connection, the deformation part of the press riveting nut is higher than the required length h of the plate 2 so as to achieve a limiting effect. After the connection, the deformed portion 14 is turned over in the direction of the sheet 2, so that the final length H of the clinch nut connected to the sheet 2 is small to meet the fastening function. Meanwhile, the irregular part 13 of the regular polygon matched with the irregular hole of the plate 2 is adopted, so that the torsion resistance and the tensile strength can be improved in the connection process. In summary, the clinch nut meets the requirement of multiple orientations in combination with the features of torsion resistance and high pull-out force of clinching (especially in the case of regular hexagon).

The above disclosure is only a preferred and practical embodiment of the present invention, and is not intended to limit the scope of the claims of the present invention, so that all the modifications of the equivalent technology made by the disclosure and drawings are included in the scope of the claims of the present invention.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on differences from other embodiments. While the present application has been described with examples, those of ordinary skill in the art will appreciate that there are numerous variations and permutations of the present application without departing from the spirit of the application and that the appended embodiments are intended to encompass such variations and permutations without departing from the application.

Claims

1. The connecting mechanism is characterized by comprising a plate with a special-shaped hole and a press riveting nut, wherein the press riveting nut comprises a main body with a first end and a second end, the main body comprises a special-shaped part arranged between the first end and the second end, the special-shaped part of the main body is arranged in the special-shaped hole of the plate in a penetrating mode, the second end of the main body is provided with a deformation part which is formed through deformation and extends outwards relative to the main body by 90 degrees, and the deformation part is attached to the side wall of the plate.

2. The connecting mechanism of claim 1, wherein the body has a predetermined height between the swaged portion and the plate material closest thereto.

3. The attachment mechanism of claim 1 wherein a distance between the first end of the clinch nut and the swage is no more than 9 millimeters.

4. The coupling mechanism of claim 1, wherein the second end of the body is annular prior to deformation and the swaged portion comprises a plurality of circumferentially outwardly swaged cells after deformation.

5. A squeeze rivet nut for being connected with panel, panel has the profile hole that the cross-section is regular polygon, its characterized in that includes: the main part extends along an axial direction, the main part has along it relative first end of axial direction and second end, be provided with in the main part be located its first end with the heterotypic portion between the second end, heterotypic portion and the shape adaptation in heterotypic hole, the second end of main part can take place outside type deformation and form the section of deforming, the section of deforming with preset distance has between the lateral wall of panel, the heterotypic portion of main part the main part, the section of deforming can with panel fixed connection.

6. The clinch nut of claim 5, wherein the length of the clinch nut along its axis is no greater than 9 mm after the second end of the body is outwardly swaged.

7. The clinch nut of claim 5, wherein the deformed angle of the swage portion and the body is 90 °.

8. The clinch nut of claim 5, wherein the second end of the body is annular before the second end of the body is outwardly swaged, and wherein the swage portion includes a plurality of circumferentially outwardly swaged cells after the second end of the body is outwardly swaged.

9. The clinch nut of claim 5, wherein the body is internally threaded on an inner side thereof.

10. The clinch nut of claim 9, wherein the internal threads have a length that is no greater than 70% of a length of the clinch nut in an axial direction thereof after outward swaging of the nut at the second end of the body is enabled.