CN212079882U - Punching rivet, punching riveting die and riveting device - Google Patents
Punching rivet, punching riveting die and riveting device Download PDFInfo
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- CN212079882U CN212079882U CN202020021529.2U CN202020021529U CN212079882U CN 212079882 U CN212079882 U CN 212079882U CN 202020021529 U CN202020021529 U CN 202020021529U CN 212079882 U CN212079882 U CN 212079882U
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Abstract
The utility model relates to a rivet towards technical field, especially relate to a mould and riveting set are riveted in punching press rivet, punching press. The punching rivet comprises a rivet body, wherein the rivet body comprises a solid part, one end of the solid part is provided with a rivet cap structure, the other end of the solid part is provided with a convex tooth structure, and the convex tooth structure is arranged at the edge position of the end face of the solid part; the height of the convex tooth structure is 0.6 mm-0.8 mm, and the length of the nail body is 5.5 mm-5.7 mm. The punching riveting die comprises a riveting die body, wherein a spherical crown groove is formed in the riveting die body, the depth of the spherical crown groove is 2.8-3 mm, and the diameter of a notch of the spherical crown groove is 10-10.5 mm. Through adopting the utility model discloses a mould is riveted in punching press rivet and punching press, has avoided the condition that riveting equipment pressure exceeds standard, has still avoided rivet pier thick deformation, rivet or panel beating fracture scheduling problem, has promoted the riveting quality to better commonality has.
Description
Technical Field
The utility model relates to a rivet towards technical field, especially relate to a mould and riveting set are riveted in punching press rivet, punching press.
Background
Riveting is a mechanical cold joint, which is not affected by the chemical properties of the material and can well join aluminum plates to each other, and aluminum plates to steel plates. The riveting technology has been widely used in connection of vehicle bodies, and has been widely used in mass production at home and abroad in vehicles such as Tesla, Yuan and the like.
At present, riveting on a vehicle body is mainly applied to connection between aluminum alloys, and research, development and application of self-piercing riveting of aluminum steel dissimilar materials, particularly aluminum alloys and advanced high-strength steel are less. In the prior art, a semi-hollow rivet is mainly adopted for riveting, and because the strength of the ultrahigh-strength steel plate is higher, the semi-hollow rivet can be punched into the steel plate only by higher acting force, so that the riveting equipment is easy to have the situations of standard exceeding of the riveting force and incapability of normal operation of the equipment. In addition, because the structural dimension design of the rivet and the riveting die is unreasonable, the problems of rivet upsetting deformation, rivet or metal plate cracking and the like easily occur in the riveting process, so that the riveting processing of the automobile body is not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mould is riveted with punching press to punching press rivet for solve among the prior art rivet and the technical problem that the structural design who rivets the mould can not satisfy the riveting requirement of the different kind of material of aluminium steel. The utility model also provides an use riveting set of above-mentioned punching press rivet and punching press riveting die.
In order to achieve the above object, the utility model provides a punching rivet adopts following technical scheme:
a punching rivet comprises a rivet body, wherein the rivet body comprises a solid part, one end of the solid part is provided with a rivet cap structure, the other end of the solid part is provided with a convex tooth structure, and the convex tooth structure is arranged at the edge position of the end face of the solid part; the height of the convex tooth structure is 0.6 mm-0.8 mm, and the length of the nail body is 5.5 mm-5.7 mm.
Further, the thickness of the nail cap structure is 0.5 mm-0.8 mm.
Further, the radial dimension of the nail cap structure is larger than that of the solid part, and an annular concave ridge with curved surface transition is formed at the joint of the nail cap structure and the solid part.
Further, the solid part and the nail cap structure are both cylindrical, and the solid part, the nail cap structure and the convex tooth structure are integrally formed.
Further, the end face diameter of the nail cap structure is 7.75 mm.
Further, the convex tooth structure is provided with a first tooth surface and a second tooth surface which are oppositely arranged, the first tooth surface is arranged in a coplanar manner with the outer peripheral surface of the solid part, and the second tooth surface extends obliquely towards the end surface of the solid part and is in curved transition with the end surface of the solid part.
The utility model also provides a mould is riveted in punching press adopts following technical scheme:
the utility model provides a mould is riveted in punching press for with the punching press rivet punching press cooperation among the above-mentioned technical scheme in order to generate punching press rivet connection, the punching press is riveted the mould and is included riveting the mould body, it is provided with the spherical crown recess on the mould body to rivet, the degree of depth of spherical crown recess is 2.8mm ~ 3mm, the notch diameter of spherical crown recess is 10mm ~ 10.5 mm.
Further, still an organic whole is provided with on the riveting die body and is used for inserting the fixed part of riveting in the die adapter in order to realize riveting the die installation fixed to the punching press.
Further, the riveting die body is cylindrical, and the diameter of the end face of the riveting die body is 18 mm.
The utility model also provides a riveting set adopts following technical scheme: the riveting device comprises a riveting gun head, a riveting die adapter, the stamping rivet and the stamping riveting die disclosed in the above contents.
The utility model discloses a mould is riveted in punching press rivet, a punching press is riveted the mould and is compared with prior art, and its beneficial effect lies in: through adopting the utility model discloses a mould is riveted to punching press rivet and punching press, because punching press rivet is solid, punching press rivet itself has higher structural strength, and during the punching press riveting, riveting equipment only need provide the riveting force of size usually can, punching press rivet self intensity is lower among the having avoided prior art, needs just can the riveting condition of punching press through the riveting force that increases riveting equipment, and then has avoided the condition that riveting equipment pressure exceeds standard.
The utility model discloses the height of well dogtooth structure, the length of the nail body, the degree of depth of spherical crown recess, the notch diameter of spherical crown recess all are in selected numerical range, and this numerical range is through processing experience and many times experimental acquisition definite, and when punching press rivet and punching press riveting die's corresponding structure size were in this numerical range, punching press riveted quality can obtain guaranteeing, has avoided rivet pier thick deformation, rivet or panel beating fracture scheduling problem, has promoted the riveting quality.
Additionally, the utility model discloses in only need rivet the mould to original punching press rivet and punching press and process, can be applicable to the punching press riveting of high-strength steel and aluminum alloy for punching press rivet and punching press are riveted the mould and can be shared with current equipment, have better commonality.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of a punch rivet according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a key dimension marking of a punch rivet according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of the overall structure of the punching riveting die according to the embodiment of the invention;
fig. 4 is a schematic diagram illustrating key dimension labeling of a punching riveting die according to an embodiment of the present invention;
fig. 5 is a schematic view of a punching riveting device according to an embodiment of the present invention.
In the figure, 1-nail body, 2-nail head structure, 3-solid part, 4-convex tooth structure, 5-first tooth surface, 6-second tooth surface, 7-annular concave ridge, 8-rivet die body, 9-spherical crown groove, 10-fixing part, 11-punching rivet, 12-punching rivet die, 13-aluminum alloy sheet, 14-high-strength steel sheet, 15-rivet head and 16-rivet die adapter.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, a punch rivet 11 according to a preferred embodiment of the present invention is provided. The punching rivet 11 comprises a rivet body 1, the rivet body 1 comprises a solid part 3, one end of the solid part 3 is provided with a rivet cap structure 2, the other end of the solid part 3 is provided with a convex tooth structure 4, and the convex tooth structure 4 is arranged at the edge position of the end face of the solid part 3; the height of the convex tooth structure 4 is 0.6 mm-0.8 mm, and the length of the nail body 1 is 5.5 mm-5.7 mm.
Specifically, the nail body 1 in the present embodiment comprises three parts, namely a nail head structure 2, a solid part 3 and a convex tooth structure 4. In this embodiment, the solid portion 3 is cylindrical, the nut structure 2 is oblate cylindrical, and the solid portion 3 and the nut structure 2 are integrally arranged. The diameter E of the end face of the nut structure 2 in this embodiment is greater than the diameter of the solid portion 3, and the diameter E of the end face of the nut structure 2 is specifically 7.75mm, so that the size is selected, so that the punch rivet 11 is adapted to the existing riveting equipment, and the universality of the punch rivet 11 is ensured. In the embodiment, a circle of annular concave ridge 7 is formed at the joint of the nut structure 2 and the solid part 3, and in order to improve the structural strength of the joint of the nut structure 2 and the solid part 3 and avoid the situation that the nut structure 2 and the solid part 3 are broken due to stress concentration in the process of stamping and riveting, the annular concave ridge 7 formed at the joint of the nut structure 2 and the solid part 3 is designed to be in a curved surface transition form. The thickness G of the nut structure 2 in this embodiment is 0.6mm, and the thickness of the nut structure 2 in other embodiments may be any value between 0.5mm and 0.8mm, for example, 0.5mm, 0.7mm, 0.75mm, 0.8mm, and the like.
As shown in fig. 1, there are two tooth structures 4 in the present embodiment, and both tooth structures 4 are integrally provided with the solid portion 3. In the present embodiment, two tooth structures 4 are oppositely disposed, each tooth structure 4 has a first tooth surface 5 and a second tooth surface 6 which are oppositely disposed, in the present embodiment, the first tooth surface 5 is disposed coplanar with the outer peripheral surface of the solid portion 3, and since the outer peripheral surface of the solid portion 3 is a cylindrical curved surface, the first tooth surface 5 is also a curved surface which is consistent with the curvature of the outer peripheral surface of the solid portion 3. In this embodiment, the second tooth surface 6 is located on the inner side of the protruding tooth structure 4, the second tooth surface 6 is an inclined curved surface, and specifically, an included angle formed by the second tooth surface 6 and the end surface of the solid portion 3 is an obtuse angle. In order to avoid the phenomenon of stress concentration at the joint of the second tooth surface 6 and the end surface of the solid part 3, the second tooth surface 6 and the end surface of the solid part 3 are also designed to be in a curved surface transition form in the embodiment. The second tooth flanks 6 of the two tooth structures 4 form an arcuate shape with the end faces of the solid part 3 in the present embodiment. In this embodiment, the cross sections of the two tooth structures 4 are both trapezoidal.
It should be noted that, in this embodiment, a third tooth surface and a fourth tooth surface are further respectively disposed between the first tooth surface 5 and the second tooth surface 6 of each of the lobe structures 4, and the third tooth surface and the fourth tooth surface are respectively disposed on the front side and the rear side (perpendicular to the paper surface direction) of the lobe structure 4, in order to enhance the penetrating effect of the lobe structure 4, the area size of the third tooth surface and the area size of the fourth tooth surface are smaller than the area size of the middle portion of the lobe structure 4, so that the lobe structure 4 is integrally wedge-shaped, thereby facilitating the lobe structure 4 to penetrate through a corresponding metal plate. In other embodiments, to make the lobe formation 4 wedge-shaped, the first and second flanks 5, 6 of each lobe formation 4 may be directly curvedly joined together such that the lobe formation 4 as a whole assumes a cone-like configuration.
The height H of the tooth structure 4 in this embodiment is 0.7mm, and in other embodiments the height H of the tooth structure 4 may be any value between 0.6mm and 0.8mm, for example, 0.6mm, 0.65mm, 0.75mm, 0.8mm, etc. The length F of the nail body 1 in the embodiment is 5.6mm, and the length F of the nail body 1 in other embodiments can be any value between 5.5mm and 5.7mm, such as 5.5mm, 5.65mm, 5.7mm, and the like. It should be noted that, since the cross section of the tooth structure 4 in this embodiment is trapezoidal, the end of the tooth structure 4 with the larger size is connected with the end face of the solid portion 3, the end of the tooth structure 4 with the smaller size is used for piercing the sheet metal, and the width I of the end of the tooth structure 4 with the smaller size is 0.2 mm.
As shown in fig. 3 and 4, in the stamping riveting die 12 according to the preferred embodiment of the present invention, the stamping riveting die 12 is used for cooperating with the stamping rivet 11 to fix and connect at least two layers of sheet metal rivets. The punching riveting die 12 comprises a riveting die body 8, a spherical crown groove 9 is formed in the riveting die body 8, the depth of the spherical crown groove 9 is 2.8 mm-3 mm, and the diameter of a notch of the spherical crown groove 9 is 10 mm-10.5 mm.
Specifically, in the present embodiment, the riveting die body 8 is cylindrical, and the end surface diameter C of the riveting die body 8 is 18mm, which is selected to be adapted to the existing riveting equipment. In this embodiment, the spherical crown groove 9 is disposed at the center of the end surface of the rivet mold body 8, and the groove wall of the spherical crown groove 9 can be regarded as a partial outer surface of the same sphere. The depth B of the spherical cap groove 9 in this embodiment is 3mm, and the depth B of the spherical cap groove 9 in other embodiments may be any value between 2.8mm and 3mm, for example, 2.8mm, 2.9mm, 2.95mm, etc. The diameter a of the notch of the spherical cap groove 9 in this embodiment is 10mm, and in other embodiments, the diameter a of the notch of the spherical cap groove 9 may be any value between 10mm and 10.5mm, such as 10.1mm, 10.2mm, 10.3mm, 10.4mm, etc. Because the depth B of the spherical cap groove 9 and the diameter a of the notch of the spherical cap groove 9 are known, the diameter D of the sphere corresponding to the spherical cap groove 9 can be calculated to be approximately equal to 11.7mm, and the value range of the diameter D of the sphere corresponding to the spherical cap groove 9 in this embodiment is between 11.5mm and 12.5 mm.
In order to facilitate the fixation of the punching riveting die 12, in this embodiment, the riveting die body 8 is further integrally provided with a fixing portion 10, the fixing portion 10 is a section of a cylindrical section, a wedge-shaped groove is formed in a side wall of the fixing portion 10, the fixing portion 10 is inserted into a corresponding groove of the riveting die adapter 16 during the fixation, and the wedge-shaped groove in the fixing portion 10 is stopped and limited with a corresponding structure of the riveting die adapter 16, so that the installation and fixation of the punching riveting die 12 are realized.
As shown in fig. 5, the riveting device in this embodiment includes a riveting gun head 15 and a riveting die adapter 16, the riveting gun head 15 is a pneumatic riveting gun head, and the punch rivet 11 is driven into a corresponding riveting sheet by air pressure in the using process. In the embodiment, the riveting sheet comprises an aluminum alloy sheet 13 and a high-strength steel sheet 14, the two riveting sheet parts are stacked between the riveting gun head 15 and the riveting die joint 16, and the aluminum alloy sheet 13 is positioned above the high-strength steel sheet 14. The specific structure of the punch rivet die 12 in this embodiment is as described above, and the specific structure of the punch rivet 11 is the same as that in the above-described embodiment of the punch rivet 11, and the detailed description thereof is omitted here.
The utility model discloses a working process does: in the process of stamping and riveting, the stamping rivet 11 penetrates through the aluminum alloy sheet 13 and is inserted into the high-strength steel sheet 14 under the action of air pressure, and specifically, due to the limiting effect of the spherical crown groove 9, the two convex tooth structures 4 on the stamping rivet 11 are opened towards two sides and are inserted into the high-strength steel sheet 14, so that the riveting fixation of one riveting point of the two riveting sheets is realized.
The utility model discloses a riveting set of preferred embodiment, as shown in fig. 5, riveting set includes riveting rifle head 15, riveting die joint 16, punching press rivet 11 and punching press riveting die 12, and riveting rifle head 15 is pneumatic type riveting rifle head 15, and riveting rifle head 15 is used for providing the punching press effort to punching press rivet 11, and riveting die joint 16 is used for fixed punching press riveting die 12, and riveting rifle head 15 and riveting die joint 16 are the common structure among the prior art, no longer detailed in the embodiment. The punch rivet 11 in this embodiment has the same structure as the punch rivet 11 in the above embodiment, and the description thereof is omitted. The punching riveting die 12 in this embodiment has the same structure as that in the above embodiment of the punching riveting die 12, and the details are not repeated here.
To sum up, the embodiment of the utility model provides a punching press rivet 11, a punching press riveting die 12, it is through adopting the utility model discloses a punching press rivet 11 and punching press riveting die 12, because punching press rivet 11 is solid, punching press rivet 11 itself has higher structural strength, and during the punching press riveting, riveting equipment only need provide the riveting force of size usually can, it is lower to have avoided punching press rivet 11 self intensity among the prior art, needs just can the punching press riveted condition through the riveting force that increases riveting equipment, and then has avoided the condition that riveting equipment pressure exceeds standard.
The utility model discloses the height of well dogtooth structure 4, the length of the nail body 1, the degree of depth of spherical crown recess 9, the notch diameter of spherical crown recess 9 all is in selected numerical range, this numerical range is through processing experience and many times experimental acquisition definite, when the corresponding structure size of punching press rivet 11 and punching press riveting die 12 is in this numerical range, punching press riveted quality can obtain guaranteeing, rivet pier thick deformation has been avoided, rivet or panel beating fracture scheduling problem, the riveting quality has been promoted.
Additionally, the utility model discloses in only need rivet mould 12 to process the punching press riveting that can be applicable to high-strength steel and aluminum alloy to original punching press rivet 11 and punching press for punching press rivet 11 and punching press rivet mould 12 can share with current equipment, have better commonality.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. A punch rivet, its characterized in that: the nail comprises a nail body (1), wherein the nail body (1) comprises a solid part (3), one end of the solid part (3) is provided with a nail cap structure (2), the other end of the solid part is provided with a convex tooth structure (4), and the convex tooth structure (4) is arranged at the edge position of the end face of the solid part (3); the height of the convex tooth structure (4) is 0.6-0.8 mm, and the length of the nail body (1) is 5.5-5.7 mm.
2. Punch rivet according to claim 1, characterized in that: the thickness of the nail cap structure (2) is 0.5 mm-0.8 mm.
3. Punch rivet according to claim 1, characterized in that: the radial dimension of the nail cap structure (2) is larger than that of the solid part (3), and an annular concave edge (7) with curved surface transition is formed at the joint of the nail cap structure (2) and the solid part (3).
4. A punch rivet according to claim 3, wherein: the solid part (3) and the nail cap structure (2) are cylindrical, and the solid part (3), the nail cap structure (2) and the convex tooth structure (4) are integrally formed.
5. Punch rivet according to claim 4, characterized in that: the end face diameter of the nail cap structure (2) is 7.75 mm.
6. Punch rivet according to claim 1, characterized in that: the convex tooth structure (4) is provided with a first tooth surface (5) and a second tooth surface (6) which are oppositely arranged, the first tooth surface (5) and the peripheral surface of the solid part (3) are arranged in a coplanar manner, and the second tooth surface (6) extends towards the end surface of the solid part (3) in an inclined manner and is in curved transition with the end surface of the solid part (3).
7. A punch riveting die for punch cooperation with a punch rivet according to any one of claims 1 to 6 to produce a punch rivet connection, characterized in that: including riveting mould body (8), be provided with spherical crown recess (9) on riveting mould body (8), the degree of depth of spherical crown recess (9) is 2.8mm ~ 3mm, the notch diameter of spherical crown recess (9) is 10mm ~ 10.5 mm.
8. The punch riveting die of claim 7, wherein: the riveting die body (8) is further integrally provided with a fixing part (10) which is used for being inserted into the riveting die adapter so as to realize the installation and fixation of the counter-punching riveting die.
9. The punch riveting die of claim 8, wherein: the riveting die body (8) is cylindrical, and the diameter of the end face of the riveting die body (8) is 18 mm.
10. The utility model provides a riveting set, rivets mould (12) including riveting rifle head (15), riveting die adapter (16), punching press rivet (11) and punching press, riveting rifle head (15) are used for to punching press rivet (11) provide the punching press effort, riveting die adapter (16) are used for fixing punching press riveting die (12), its characterized in that: the punch rivet (11) is the punch rivet (11) as claimed in any one of claims 1 to 6, and the punch riveting die (12) is the punch riveting die (12) as claimed in any one of claims 7 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020021529.2U CN212079882U (en) | 2020-01-06 | 2020-01-06 | Punching rivet, punching riveting die and riveting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020021529.2U CN212079882U (en) | 2020-01-06 | 2020-01-06 | Punching rivet, punching riveting die and riveting device |
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| CN212079882U true CN212079882U (en) | 2020-12-04 |
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| CN202020021529.2U Active CN212079882U (en) | 2020-01-06 | 2020-01-06 | Punching rivet, punching riveting die and riveting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441668A (en) * | 2021-06-08 | 2021-09-28 | 青岛征和工业股份有限公司 | Chain hollow rivet pier head mould |
-
2020
- 2020-01-06 CN CN202020021529.2U patent/CN212079882U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441668A (en) * | 2021-06-08 | 2021-09-28 | 青岛征和工业股份有限公司 | Chain hollow rivet pier head mould |
| CN113441668B (en) * | 2021-06-08 | 2022-11-29 | 青岛征和工业股份有限公司 | Chain hollow rivet pier head mould |
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