CN115507102A - Fastening unit, connecting mechanism and mounting method for fixing fastening piece and plate - Google Patents
Fastening unit, connecting mechanism and mounting method for fixing fastening piece and plate Download PDFInfo
- Publication number
- CN115507102A CN115507102A CN202110689987.2A CN202110689987A CN115507102A CN 115507102 A CN115507102 A CN 115507102A CN 202110689987 A CN202110689987 A CN 202110689987A CN 115507102 A CN115507102 A CN 115507102A
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- CN
- China
- Prior art keywords
- hole
- fastener
- plate
- teeth
- flower
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- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 title claims description 12
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000007306 turnover Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
Classifications
-
- 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
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
- F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
- F16B19/1027—Multi-part rivets
-
- 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
- F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
- F16B5/045—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting without the use of separate rivets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses an installation method for fixing a fastener and a plate, wherein the fastener is provided with flower teeth, the plate comprises a through hole, and the installation method comprises the following steps: pressing one end of the fastener with the flower teeth into the through hole, so that the end surfaces of the flower teeth are attached to the plate; embedding a rivet turning mold between the inner side wall of the through hole and the outer side wall of the fastener so as to expand the through hole outwards; and pressing the spline teeth into the expanded through holes through press riveting so as to fixedly connect the spline teeth with the through holes. The invention comprises at least the following advantages: the interference magnitude between the spline teeth and the plate through holes is adjusted by adjusting the shape, the tooth pitch and the outer diameter of the spline teeth on the fastener, so that the compressive stress of the fastener to the side edge of the plate is reduced; then, the through hole is turned over and riveted to obtain higher push-out resistance and certain torsion resistance while ensuring smaller compressive stress; the fastener has simple adjustment directionality and simple manufacturing process, and greatly reduces the production cost.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to a fastening unit, a connecting mechanism and an installation method for fixing a fastener and a plate.
Background
Along with the continuous development of the mechanical industry, the plates are often connected through a stamping process or welding, the pressure stress generated on the plates during the stamping process or welding is large, the plates are easy to break, the plates are damaged, the reject ratio of the plates is greatly improved, and the production cost and the labor cost are increased. The use of clinch rivets is therefore more widely used to join the sheets of the prior art. However, the existing single rivet-turning structure is complex, and a certain damage can be caused to the plate due to a larger compressive stress and a smaller torsion-resistant force which are also generated on the side edge of the plate during rivet-turning, so that the cost is increased.
Disclosure of Invention
To overcome the defects in the prior art, embodiments of the present invention provide a fastening unit, a connecting mechanism and a mounting method for fixing a fastener and a plate material, which are used for solving at least one of the above problems.
The embodiment of the application discloses a fastening unit, a connecting mechanism and an installation method for fixing a fastening piece and a plate, wherein the fastening piece is provided with flower teeth, and the interference magnitude between the flower teeth and a through hole of the plate can be adjusted by adjusting the shape, the tooth pitch and the outer diameter of the flower teeth, so that the compressive stress of the fastening piece on the side edge of the plate is reduced; then, the through hole is turned and riveted through a turning and riveting die to obtain higher push-out resistance and certain torsion resistance; through practical tests, the fastener is simple in adjustment directionality and simple in manufacturing process, can be widely applied to various riveting conditions and harsh narrow-edge environments, and greatly reduces production cost.
The mounting method for fixing the fastener and the plate comprises through holes and comprises the following steps:
pressing one end of the fastener with the flower teeth into the through hole, so that the end surfaces of the flower teeth are attached to the plate;
embedding a rivet turning mold between the inner side wall of the through hole and the outer side wall of the fastener so as to expand the through hole outwards;
and pressing the spline teeth into the expanded through holes through press riveting so as to fixedly connect the spline teeth with the through holes.
Further, before the step of pressing the end of the fastener with the flower teeth into the through hole, the method comprises the step of obtaining the flower teeth in interference fit with the through hole according to parameters of the through hole.
The embodiment of the application also discloses a fastening unit, which is used for being connected with a plate, wherein the plate is provided with a through hole, and the fastening unit is characterized by comprising a fastening piece and spline teeth, wherein the fastening piece comprises a body and a flange part arranged on the outer side of the body, and the spline teeth are fixedly sleeved on the outer side of the body and abut against the flange part;
the outer diameter of one end of the fastener, which is close to the flower teeth, is smaller than the diameter of the through hole; the outer diameter of the flower teeth is larger than the diameter of the through hole.
Furthermore, the plate is a narrow edge distance plate, the thickness delta of the plate is 0.6-4 mm, and the width d of the plate accounts for 30-35% of the aperture of the through hole.
Furthermore, the interference magnitude of the outer diameter of the flower teeth relative to the aperture of the through hole of the plate is 5-50 per thousand.
Further, the spline teeth can be straight teeth or helical teeth.
Further, the outer diameter of the spline is smaller than that of the flange.
Furthermore, one end of the fastener, which is close to the spline teeth, is provided with a through hole along the axial direction.
The embodiment of the application further discloses a connecting mechanism, this connecting mechanism includes fastening unit and panel, its characterized in that, fastening unit includes fastener and flower tooth, the fastener includes the body and sets up the flange portion in the body outside, flower tooth is established fixedly the body outside, and with flange portion offsets, the fastener closes on the one end of flower tooth through turn over rivet with the through-hole is connected, the flower tooth through the pressure rivet with the through-hole is connected.
The invention has the following beneficial effects:
the fastening piece is provided with the spline teeth, and the interference magnitude between the spline teeth and the through holes of the plate can be adjusted by adjusting the shape, the tooth pitch and the outer diameter of the spline teeth, so that the compressive stress of the fastening piece to the side edge of the plate is reduced; then, the through hole is turned and riveted through a turning and riveting die, so that the outer edge of the through hole is expanded outwards, the spline teeth can be pressed into the through hole and fixedly connected with the through hole, and high push-out resistance and certain torsion resistance are obtained while the side compressive stress of the plate is ensured to be small; through practical tests, the fastener is simple in adjustment directionality and simple in manufacturing process, can be widely applied to various riveting conditions and harsh narrow-edge environments, and greatly reduces production cost.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure in a fastening unit according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a sheet material in accordance with a novel embodiment of the present invention;
fig. 3 is a schematic view of the fastening unit being coupled to the panel in the novel embodiment of the present invention.
Reference numbers to the above figures: 1. a fastener; 2. a plate material; 3. flower teeth; 4. a through hole; 5. a body; 6. a flange portion; 7. a first end face; 8. a second end face; 9. a side edge; δ =1.2mm.
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.
According to the installation method for fixing the fastener and the plate, the fastener is provided with the flower teeth. The sheet material includes a through hole. With reference to fig. 1, 2 and 3, the installation method includes the following steps:
pressing one end of the fastener 1 with the spline teeth 3 into the through hole 4 through a press riveting die, so that the end surfaces of the spline teeth 3 are attached to the plate 2;
then embedding a rivet turning mold between the inner side wall of the through hole 4 and the outer side wall of the fastener 1 to expand the through hole 4 outwards, and determining the size of the through hole 4 to be turned outwards and riveted according to the protruding size of the spline 3 relative to one end of the fastener 1 close to the spline 3, so that the spline 3 can enter the through hole 4 and is fixedly connected with the inner wall of the through hole 4;
and finally, pressing the spline teeth 3 into the expanded through holes 4 through press riveting so as to fixedly connect the spline teeth 3 with the through holes 4, thereby completing the press riveting process and the turn riveting process.
Specifically, in this embodiment, before the step "pressing the end of the fastener 1 having the spline 3 into the through hole 4", the method includes obtaining the spline 3 in interference fit with the through hole 4 according to the parameters of the through hole 4. The spline teeth 3 can adjust the pressure stress of the fastener 1 on the side edge of the plate when the pressure riveting and the turn-over riveting are carried out by adjusting the shape, the tooth pitch and the outer diameter so as to ensure that the fastener 1 has higher push-out resistance and certain torsion resistance when the pressure stress is smaller, and the spline teeth can be widely applied to various pressure riveting and turn-over riveting scenes and harsh narrow-edge environments.
The fastening unit is used for being connected with a plate 2, the plate 2 is provided with a through hole 4, the fastening unit comprises a fastening piece 1 and a spline 3, the fastening piece 1 comprises a body 5 and a flange part 6 arranged on the outer side of the body 5, and the spline 3 is fixedly sleeved on the outer side of the body 5 and abuts against the flange part 6;
the outer diameter of one end of the fastener 1 adjacent to the flower teeth 3 is smaller than the diameter of the through hole 4; the outer diameter of the spline teeth 3 is larger than the diameter of the through hole 4.
As shown in fig. 1 and 2, in particular, in the present embodiment, the fastening unit includes a fastening member 1 and a spline 3. The fastener 1 includes a body 5 and a flange portion 6 provided outside the body 5. The body 5 may be rod-shaped. The flange part 6 is circumferentially sleeved on the body 5. The spline teeth 3 are fixedly sleeved on the outer side of the body 5. The end surface of the spline 3 abuts against the flange part 6. The tooth shape, the tooth pitch and the outer diameter of the spline teeth 3 can be adjusted according to the inner diameter of the through hole 4, so that the interference magnitude of the spline teeth 3 and the through hole 4 can be adjusted, and the stress on the side edge of the plate 2 can be adjusted. The outer diameter of one end of the fastener 1 adjacent to the flower teeth 3 is smaller than the diameter of the through hole 4. One end of the fastener 1 close to the spline teeth 3 is in clearance fit with the through holes 4, so that one end of the fastener 1 close to the spline teeth 3 can enter the through holes 4 firstly. The outer diameter of the spline teeth 3 is larger than the diameter of the through hole 4. The flower teeth 3 are in interference fit with the through holes 4. The through hole 4 needs to be riveted to enlarge the inner diameter of the through hole 4 so that the spline teeth 3 can enter the through hole 4 and be fixedly connected with the through hole 4. The fastener 1 has simple adjustment directionality and simple manufacturing process, can be widely applied to various riveting conditions and harsh narrow-edge environments, and greatly reduces the production cost.
Specifically, in this embodiment, the plate 2 is a narrow-margin plate 2. The thickness delta of the plate 2 is 0.6-4 mm. The thickness δ of the sheet 2 is the perpendicular distance from the first end face 7 to the second end face 8 of the sheet 2. The width d of the plate 2 accounts for 30-35% of the aperture of the through hole 4. The width d of the plate 2 is the shortest distance from the side edge 9 to the outer edge of the through hole 4.
Specifically, in this embodiment, the external diameter of the spline 3 is relative the interference of the aperture of the through hole 4 of the plate 2 is 5 permillage-50 permillage for increasing the anti-rotation torque, so that the fastener 1 can be stably connected with the plate 2.
Specifically, in this embodiment, the spline teeth 3 may be straight teeth or helical teeth. After the flower teeth 3 are pressed into the through holes 4, the flower teeth 3 are fixedly connected with the inner walls of the through holes 4.
Specifically, in the present embodiment, the outer diameter of the spline 3 is smaller than the outer diameter of the flange portion 6. The flower teeth 3 enter the through holes 4 and are fixedly connected with the inner walls of the through holes 4, the flange parts 6 are attached to one sides, close to the flange parts 6, of the plates 2, so that the flange parts 6 cover the through holes 4, and the fasteners 1 are stably fixed in the through holes 4.
Specifically, in this embodiment, a through hole 4 is axially formed at an end of the fastening member 1 adjacent to the spline 3. The height of the through hole 4 is the distance from one end of the fastener 1 close to the spline 3 to the end face of the flange part 6 close to the spline 3.
An embodiment of the application a coupling mechanism, this coupling mechanism include fastening unit and panel 2, fastening unit includes fastener 1 and flower tooth 3, fastener 1 includes body 5 and sets up the flange portion 6 in the 5 outsides of body, flower tooth 3 is established fixedly the body 5 outsides, and with flange portion 6 offsets, fastener 1 approaches to the one end of flower tooth 3 through turn over rivet with through-hole 4 is connected, flower tooth 3 through the pressure rivet with through-hole 4 is connected.
Specifically, in the present embodiment, the fastening unit includes a fastener 1 and a spline 3. The fastener 1 includes a body 5 and a flange portion 6 provided outside the body 5. The body 5 may be rod-shaped. The flange part 6 is circumferentially sleeved on the body 5. The spline teeth 3 are fixedly sleeved on the outer side of the body 5. The end surface of the spline 3 abuts against the flange part 6. The tooth shape, the tooth pitch and the outer diameter of the spline teeth 3 can be adjusted according to the inner diameter of the through hole 4, so that the interference magnitude of the spline teeth 3 and the through hole 4 can be adjusted, and the stress on the side edge of the plate 2 can be adjusted. The fastener 1 is close to one end of the spline teeth 3 is expanded outwards through the rivet turning mold, so that the inner diameter of the through hole 4 can be in clearance fit with the outer diameter of the spline teeth 3, and the spline teeth 3 are connected with the through hole 4. The flower teeth 3 are connected with the through holes 4 through press riveting. And after the through hole 4 is expanded by the rivet turning mold, the flower teeth 3 are pressed into the through hole 4 by the rivet pressing mold so as to be fixedly connected with the through hole 4. The connecting mechanism ensures that the side compressive stress of the plate 2 is smaller, and simultaneously obtains higher push-out resistance and certain torsion resistance, so that the plate 2 is not easy to damage, and the production cost is reduced.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the technical scheme and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. An installation method for fixing a fastener and a plate, wherein the fastener is provided with flower teeth, the plate comprises a through hole, and the installation method is characterized by comprising the following steps:
pressing one end of the fastener with the flower teeth into the through hole, so that the end surfaces of the flower teeth are attached to the plate;
embedding a rivet turning mold between the inner side wall of the through hole and the outer side wall of the fastener so as to expand the through hole outwards;
and pressing the spline teeth into the expanded through holes through press riveting so as to fixedly connect the spline teeth with the through holes.
2. An installation method for securing a fastener to a panel according to claim 1, including, prior to the step of "pressing the end of the fastener having the serrations into the through-hole", obtaining serrations which have an interference fit with the through-hole according to the parameters of the through-hole.
3. A fastening unit is used for being connected with a plate, the plate is provided with a through hole, and the fastening unit is characterized by comprising a fastening piece and spline teeth, wherein the fastening piece comprises a body and a flange part arranged on the outer side of the body, and the spline teeth are fixedly sleeved on the outer side of the body and abut against the flange part;
the outer diameter of one end of the fastener, which is close to the flower teeth, is smaller than the diameter of the through hole; the outer diameter of the flower teeth is larger than the diameter of the through hole.
4. The fastening unit according to claim 3, wherein the plate is a narrow-margin plate, the thickness δ of the plate is 0.6-4 mm, and the width d of the plate occupies 30-35% of the aperture of the through hole.
5. The fastening unit according to claim 3, wherein the interference of the outer diameter of the spline with respect to the hole diameter of the through hole of the plate is 5 to 50%.
6. A fastening unit according to claim 3 wherein the serrations may be straight or skewed teeth.
7. The fastening unit according to claim 3, wherein an outer diameter of the spline is smaller than an outer diameter of the flange portion.
8. A fastening unit according to claim 3, wherein the fastening member is provided with a through hole in the axial direction adjacent to one end of the spline.
9. The utility model provides a connecting mechanism, this connecting mechanism includes fastening unit and panel, its characterized in that, fastening unit includes fastener and flower tooth, the fastener includes the body and sets up the flange portion in the body outside, the flower tooth is established fixedly the body outside, and with the flange portion offsets, the fastener closes on the one end of flower tooth through turn over rivet with the through-hole is connected, the flower tooth through press rivet with the through-hole is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110689987.2A CN115507102A (en) | 2021-06-22 | 2021-06-22 | Fastening unit, connecting mechanism and mounting method for fixing fastening piece and plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110689987.2A CN115507102A (en) | 2021-06-22 | 2021-06-22 | Fastening unit, connecting mechanism and mounting method for fixing fastening piece and plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115507102A true CN115507102A (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110689987.2A Pending CN115507102A (en) | 2021-06-22 | 2021-06-22 | Fastening unit, connecting mechanism and mounting method for fixing fastening piece and plate |
Country Status (1)
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| CN (1) | CN115507102A (en) |
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