CN115045898A - Press-riveting nut, connecting system and connecting method of connecting system - Google Patents
Press-riveting nut, connecting system and connecting method of connecting system Download PDFInfo
- Publication number
- CN115045898A CN115045898A CN202210662365.5A CN202210662365A CN115045898A CN 115045898 A CN115045898 A CN 115045898A CN 202210662365 A CN202210662365 A CN 202210662365A CN 115045898 A CN115045898 A CN 115045898A
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- Prior art keywords
- plate
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- nut
- insulating film
- teeth
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 10
- 238000003825 pressing Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
- F16B37/068—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the support, e.g. the sheet or plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a press-riveting nut, a connecting system and a connecting method of the connecting system, wherein the press-riveting nut comprises a body, a through hole is formed in the body, and the body comprises: the flange portion, the flange portion has relative first end and second end, connecting portion, and connecting portion set up the first end at the flange portion, and connecting portion can be connected with first panel, are provided with protruding tooth on the terminal surface of the second end of flange portion to can pierce through the insulating film that the second panel faced the flange portion at first panel and second panel connected process, thereby can contact with the second panel. After the connecting part of the press riveting nut is riveted with the first through hole of the first plate, the second plate covered with the insulating film is fastened and connected to the second end of the flange part through the fastening bolt, the protruding teeth on the second plate can gradually pierce the insulating film in the process of pre-tightening the fastening bolt and directly contact the second plate, the insulating film peeling procedure is not needed to be independently carried out, the peeling effect is good, and the production efficiency is synchronously improved.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to a press-riveting nut, a connecting system and a connecting method of the connecting system.
Background
The press riveting nut is also called a riveting nut and a self-fastening nut, is a nut applied to a thin plate or a metal plate, is cylindrical in appearance, and is provided with a positioning tooth and a guide groove at one end. The principle is that the positioning teeth are pressed into the prefabricated hole positions of the metal plate, generally speaking, the aperture of each prefabricated hole is slightly smaller than that of the positioning teeth of the press riveting nut, the positioning teeth of the press riveting nut are pressed into the plate through pressure, the periphery of each prefabricated hole generates plastic deformation, and the deformation object is pressed into gaps of the positioning teeth, so that the locking effect is achieved.
The automobile grounding part also widely uses the rivet pressing nut, for example, when connecting together its first panel and second panel, need first rivet pressing nut in the prefabricated hole site riveting of first panel, later it carries out fastening connection with the second panel through the bolt, but because it is ground connection application, the outer surface of second panel covers and is equipped with the insulating layer, before fastening, need strip the operation according to the conduction point position with the insulating layer on the second panel, it is not only long-consuming to strip the process, low in production efficiency, the effect after stripping also can't reach the standard far away, for example strip incomplete, cause to conduct the point contact badly, or strip too much, can't form independent conduction point, will cause the short circuit phenomenon.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention mainly aims to provide a press-riveting nut, a connecting system and a connecting method of the connecting system.
The purpose of the invention is realized by the following technical scheme:
the invention provides a press riveting nut which is used for connecting a first plate with a second plate and comprises a body, wherein a through hole is formed in the body;
the body includes:
a flange portion having opposing first and second ends;
the connecting part is arranged at the first end of the flange part and can be connected with the first plate;
and the end surface of the second end of the flange part is provided with protruding teeth so as to pierce the insulating film of the second plate facing the flange part in the process of connecting the first plate and the second plate, and thus, the insulating film can be contacted with the second plate.
As a further description of the above technical solution, the number of the protruding teeth is multiple, and the multiple protruding teeth are uniformly distributed at intervals along the circumferential direction, or the multiple protruding teeth are distributed at intervals in a rectangular array.
As a further description of the above technical solution, the connecting portion includes a positioning tooth connected to the flange portion, and a deformation pressing portion connected to an end of the positioning tooth away from the flange portion.
As a further description of the above technical solution, an outer diameter of the positioning teeth is smaller than an outer diameter of the flange portion.
As a further description of the above technical solution, the positioning teeth may be in the shape of a rib, a sawtooth, or a spiral.
The invention also provides a connecting system, which adopts the press riveting nut, and comprises:
a first plate having a first through hole;
the second plate is provided with a second through hole and is covered with an insulating film;
the pressure riveting nut comprises a body, wherein a through hole is formed in the body;
the body includes:
a flange portion having opposing first and second ends;
the connecting part is arranged at the first end of the flange part and riveted in the first through hole of the first plate;
the end face of the second end of the flange part is provided with protruding teeth which pierce the insulating film and are in contact with the second plate;
the fastening bolt sequentially penetrates through the second through hole of the second plate and the through hole of the pressure riveting nut;
and the fastening nut is arranged on one side of the first plate, which is far away from the second plate, and is fixedly connected with the fastening bolt.
The invention also provides a connecting method of the connecting system, which adopts the rivet pressing nut and comprises the following steps:
placing the first plate towards the connecting part, so that the first through hole of the first plate is axially overlapped with the center of the press riveting nut;
applying an acting force to the first plate towards the pressure riveting nut to enable the connecting part to be extruded into the first through hole of the first plate;
placing the second plate and a first plate connected with a pressure riveting nut in parallel, and enabling the center of the first through hole of the first plate to be axially overlapped with the center of the second through hole of the second plate;
sequentially penetrating a fastening bolt through a second through hole of the second plate and a through hole of the press riveting nut;
and after a fastening bolt sequentially penetrates through the second through hole of the second plate and the through hole of the pressure riveting nut, the fastening nut is fixedly connected with the fastening bolt on one side of the first plate, which is far away from the second plate.
As a further description of the above technical solution, in the step of applying a force to the first plate material toward the clinch nut to press the connecting portion into the first through hole of the first plate material, the first plate material may flow in a radial direction after the positioning teeth of the clinch nut are clinched with the first through hole to flow into gaps of the positioning teeth, so that the first plate material is fastened to the clinch nut.
As a further description of the above technical solution, in the step "after the fastening bolt is sequentially inserted through the second through hole of the second plate and the through hole of the clinch nut, the fastening nut is fixedly connected to the fastening bolt on the side of the first plate facing away from the second plate", the protruding teeth on the second end surface of the flange portion can gradually pierce through the insulating film coated on the side surface of the second plate facing the first plate, so as to contact the second plate.
The invention has the outstanding effects that:
after the connecting part of the press-riveting nut is riveted to the first through hole of the first plate, the second plate covered with the insulating film is fastened and connected to the second end of the flange part through the fastening bolt, the protruding teeth on the second plate can gradually pierce the insulating film in the pre-tightening process of the fastening bolt and are in direct contact conduction with the second plate, the stripping effect is good, the process of stripping the insulating film is not needed to be carried out independently, and the production efficiency is improved;
in the press riveting process of the press riveting nut provided by the invention, the first plate can flow along the radial direction to flow into the gap of the positioning teeth, the deformation pressing part of the press riveting nut generates certain deformation in the axial direction under the action of the press riveting force, the gap between the press riveting nut and the first plate is eliminated in a mutually matched mode, then, in the process of connecting the second plate and the first plate by using the bolt, the convex teeth arranged on the upper end face of the flange part of the press riveting nut can gradually pierce through the insulating film coated on the surface of the second plate to form a plurality of conduction points, and meanwhile, due to the existence of the insulating film, the fastening bolt cannot be in direct contact with the second plate, so that the first plate and the second plate are ensured to be conducted only through the convex teeth, and the press riveting nut can be widely applied to parts of automobiles which need to be grounded.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a clinch nut according to an embodiment of the invention;
FIG. 2 is a schematic structural view of a clinch nut according to another embodiment of the invention;
FIG. 3 is a schematic structural view of a clinch nut according to yet another embodiment of the invention;
FIG. 4 is a schematic view showing the structure of a clinch mechanism (not shown) according to the present invention;
FIG. 5 is an enlarged view of A of FIG. 4 according to the present invention;
FIG. 6 is a schematic view of the structure of the protruding teeth piercing the insulating film and contacting the second plate.
Reference numerals:
1-a first sheet material; 2-a second sheet material; 3-body; 4-a flange portion; 5-raised teeth; 6-positioning teeth; 7-deforming the compression part; 8-an insulating film; 9-fastening bolts; 10-fastening the nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art. The following describes embodiments of the present invention based on the overall configuration thereof.
Referring to fig. 1 to 6, an embodiment of the present invention discloses a clinch nut, a connection system, and a connection method of the connection system, in which after a connection portion of the clinch nut is clinched to a first through hole of a first plate 1, a second plate 2 covered with an insulating film 8 is fastened and connected to a second end of a flange portion 4 by a fastening bolt 9, and a protruding tooth 5 thereon gradually pierces through the insulating film 8 in a process of pre-tightening the fastening bolt 9 and directly contacts with the second plate 2, so that a separate peeling process of the insulating film 8 is not required, a peeling effect is good, and production efficiency is synchronously improved.
The press riveting nut is used for connecting a first plate 1 and a second plate 2 and comprises a body 3, wherein a through hole (not marked in the figure) is formed in the body 3;
the body 3 comprises:
a flange portion 4, the flange portion 4 having opposing first and second ends;
the connecting part is arranged at the first end of the flange part 4 and can be connected with the first plate 1;
the flange portion 4 is provided at the end surface of the second end thereof with protruding teeth 5 so as to pierce the insulating film 8 of the second plate 2 facing the flange portion 4 during the joining of the first plate 1 and the second plate 2, thereby being able to contact the second plate 2.
Referring to fig. 1 to 3, in particular, in the embodiment, the clinch nut includes a body 3, the body 3 may be cylindrical, and a through hole is formed in the body for a fastening bolt 9 to pass through, and the through hole may be a threaded hole or a unthreaded hole. The body 3 includes flange portion 4 and connecting portion, flange portion 4 has relative first end and second end, and the definition first end is the lower extreme, and the second end is the upper end, connecting portion set up the lower extreme of flange portion 4, connecting portion can with first panel 1 is connected, and the surface of second panel 2 is equipped with one deck insulating film 8, will second panel 2 is connected to the in-process of the up end of flange portion 4, protruding tooth 5 that is equipped with on the up end of flange portion 4 can pierce gradually insulating film 8 relative to it, thereby with second panel 2 direct contact switches on.
Specifically, in this embodiment, the number of the protruding teeth 5 is plural, and the plural protruding teeth 5 may be uniformly distributed at intervals in the circumferential direction, for example, the protruding teeth are annularly distributed at equal intervals by taking the center of the through hole as the center and the outer diameter of the flange portion 4 as the circumference. In another embodiment, the plurality of protruding teeth 5 may also be annularly distributed at equal intervals around the center of the through hole and the outer diameter of the through hole. A plurality of the protruding teeth 5 may also be spaced in a rectangular array, for example, in another embodiment, there are 4 protruding teeth 5 spaced in a 2 × 2 rectangular array.
Specifically, in this embodiment, the connecting portion includes a positioning tooth 6 connected to the flange portion 4, and a deforming and compressing portion 7 connected to a lower portion of the positioning tooth 6. The positioning teeth 6 may be in a shape of a rib, a saw-tooth, or a spiral, and the outer diameter thereof is smaller than the outer diameter of the flange portion 4. In the process of connecting the press-riveting nut and the first plate 1, the first plate 1 can flow in the radial direction to flow into the gap of the positioning teeth 6, and the deformation pressing part 7 can generate certain plastic deformation in the axial direction due to pressure, so that the first plate 1 and the press-riveting nut are tightly riveted and connected in a matching manner.
Referring to fig. 4 to fig. 6, in particular, the present embodiment further discloses a connection system using the above-mentioned clinch nut, including: a first plate 1, the first plate 1 having a first through hole (not shown); a second plate 2, the second plate 2 having a second through hole (not shown), the second plate 2 being coated with an insulating film 8; the pressure riveting nut comprises a body 3, and a through hole is formed in the body 3; the body 3 comprises: a flange part 4, wherein the flange part 4 is provided with an upper end and a lower end; the connecting part is arranged at the lower end of the flange part 4 and riveted in the first through hole of the first plate 1; the end face of the upper end of the flange part 4 is provided with a convex tooth 5 which pierces the insulating film 8 and contacts with the second plate 2; the fastening bolt 9 is sequentially arranged in the second through hole of the second plate 2 and the through hole of the pressure riveting nut in a penetrating way; and the fastening nut 10 is arranged on the lower side face of the first plate material 1, and is fixedly connected with the fastening bolt 9, and the fastening bolt 9 and the second plate material 2 are not in direct contact due to the existence of the insulating film 8. Therefore, the first sheet material 1 and the second sheet material 2 can be electrically conducted only through the projecting teeth 5.
The embodiment also discloses a connection method of the connection system, which adopts the rivet pressing nut and comprises the following steps:
placing the first plate 1 towards the connecting part, and enabling a first through hole of the first plate 1 to be axially overlapped with the center of the pressure riveting nut;
applying an acting force to the first plate 1 towards the pressure riveting nut to enable the connecting part to be extruded into the first through hole of the first plate 1;
placing the second plate 2 and the first plate 1 connected with the press riveting nut in parallel, and enabling the centers of the first through hole of the first plate 1 and the second through hole of the second plate 2 to be axially overlapped;
sequentially penetrating a fastening bolt 9 through a second through hole of the second plate 2 and a through hole of the press riveting nut;
after the fastening bolt 9 sequentially penetrates through the second through hole of the second plate 2 and the through hole of the pressure riveting nut, the fastening nut 10 is fixedly connected with the fastening bolt 9 on the side of the first plate 1 departing from the second plate 2.
Specifically, in this embodiment, in the step "applying a force to the first plate 1 toward the clinch nut to extrude the connecting portion into the first through hole of the first plate 1", the first plate 1 can flow in the radial direction after the positioning teeth 6 of the clinch nut and the first through hole are clinched to flow into the gaps of the positioning teeth 6, and the gaps between the first plate 1 and the positioning teeth 6 are eliminated, so that the first plate 1 and the clinch nut are fastened and connected.
Specifically, in the present embodiment, in the step "after the fastening bolt 9 sequentially passes through the second through hole of the second plate 2 and the through hole of the clinch nut, the fastening nut 10 is fixedly connected to the fastening bolt 9 on the side of the first plate 1 away from the second plate 2", the protruding teeth 5 on the second end surface of the flange portion 4 can gradually pierce through the insulating film 8 coated on the side surface of the second plate 2 facing the first plate 1, so as to contact with the second plate 2, thereby forming a conduction point.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes, substitutions, and modifications can be made without departing from the spirit and scope of the invention.
Claims (9)
1. A press-riveting nut is used for connecting a first plate with a second plate and is characterized by comprising a body, wherein a through hole is formed in the body;
the body includes:
a flange portion having opposing first and second ends;
the connecting part is arranged at the first end of the flange part and can be connected with the first plate;
and the end surface of the second end of the flange part is provided with protruding teeth so as to pierce the insulating film of the second plate facing the flange part in the process of connecting the first plate and the second plate, and thus, the insulating film can be contacted with the second plate.
2. The clinch nut of claim 1, wherein the number of the raised teeth is plural, and the plurality of raised teeth are uniformly spaced apart in a circumferential direction, or the plurality of raised teeth are spaced apart in a rectangular array.
3. The clinch nut of claim 1, wherein the connecting portion includes a locating tooth connected to the flange portion, and a deformed clinch portion connected to an end of the locating tooth facing away from the flange portion.
4. The clinch nut of claim 3, wherein the locating teeth have an outer diameter less than an outer diameter of the flange portion.
5. The clinch nut of claim 4, wherein the locating teeth may be ridges, serrations, spirals.
6. A connection system using the clinch nut of claims 1 to 5, comprising:
a first plate having a first through hole;
the second plate is provided with a second through hole and is covered with an insulating film;
the pressure riveting nut comprises a body, wherein a through hole is formed in the body;
the body includes:
a flange portion having opposing first and second ends;
the connecting part is arranged at the first end of the flange part and riveted in the first through hole of the first plate;
the end face of the second end of the flange part is provided with protruding teeth which pierce the insulating film and are in contact with the second plate;
the fastening bolt sequentially penetrates through the second through hole of the second plate and the through hole of the pressure riveting nut;
and the fastening nut is arranged on one side of the first plate, which is far away from the second plate, and is fixedly connected with the fastening bolt.
7. A method of connecting a connecting system using the clinch nut of claims 1 to 5, comprising the steps of:
placing the first plate towards the connecting part, so that the first through hole of the first plate is axially overlapped with the center of the press riveting nut;
applying an acting force to the first plate towards the pressure riveting nut to enable the connecting part to be extruded into the first through hole of the first plate;
placing the second plate and a first plate connected with a pressure riveting nut in parallel, and enabling the center of the first through hole of the first plate to be axially overlapped with the center of the second through hole of the second plate;
sequentially penetrating a fastening bolt through a second through hole of the second plate and a through hole of the press riveting nut;
and after a fastening bolt sequentially penetrates through the second through hole of the second plate and the through hole of the pressure riveting nut, the fastening nut is fixedly connected with the fastening bolt on one side of the first plate, which is far away from the second plate.
8. The connecting method of the connecting system according to claim 7, wherein in the step of applying a force to the first plate toward the clinch nut to press the connecting portion into the first through hole of the first plate, the first plate can flow in a radial direction to flow into a gap of the positioning teeth after the positioning teeth of the clinch nut are clinched with the first through hole to tightly connect the first plate with the clinch nut.
9. The connecting method of the connecting system according to claim 7, wherein in the step of fixedly connecting a fastening nut to the fastening bolt on a side of the first plate member facing away from the second plate member after the fastening bolt is sequentially inserted through the second through hole of the second plate member and the through hole of the clinch nut, the protruding teeth on the second end surface of the flange portion can gradually pierce through the insulating film coated on the side of the second plate member facing the first plate member to be brought into contact with the second plate member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210662365.5A CN115045898A (en) | 2022-06-13 | 2022-06-13 | Press-riveting nut, connecting system and connecting method of connecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210662365.5A CN115045898A (en) | 2022-06-13 | 2022-06-13 | Press-riveting nut, connecting system and connecting method of connecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115045898A true CN115045898A (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210662365.5A Pending CN115045898A (en) | 2022-06-13 | 2022-06-13 | Press-riveting nut, connecting system and connecting method of connecting system |
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| CN (1) | CN115045898A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016501A (en) * | 2017-12-28 | 2018-05-11 | 江苏易行车业有限公司 | A kind of new electromobile modularization structure |
-
2022
- 2022-06-13 CN CN202210662365.5A patent/CN115045898A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016501A (en) * | 2017-12-28 | 2018-05-11 | 江苏易行车业有限公司 | A kind of new electromobile modularization structure |
| CN108016501B (en) * | 2017-12-28 | 2023-08-25 | 江苏易行车业有限公司 | Novel electric automobile modularization structure |
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