CN210318111U - Anti-rotation riveting nut for plastic workpiece - Google Patents
Anti-rotation riveting nut for plastic workpiece Download PDFInfo
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- CN210318111U CN210318111U CN201920694503.1U CN201920694503U CN210318111U CN 210318111 U CN210318111 U CN 210318111U CN 201920694503 U CN201920694503 U CN 201920694503U CN 210318111 U CN210318111 U CN 210318111U
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- riveting nut
- outer peripheral
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Abstract
The utility model discloses an anti-rotation riveting nut for plastic workpieces, which is T-shaped as a whole; comprises a hollow elliptic head and a body, wherein the peripheral surface of the body is provided with an upper section and a dog tail which extend along the axial direction; the upper section inside the body is provided with a hollow cavity, and the lower section inside the body is provided with a thread structure; the upper section is in transition connection with the dog tail through an oblique inlet chamfer; the nut is matched with the oval counter bore on the plastic workpiece by arranging the oval head, so that the effect of preventing the rotation of the riveting nut after the plastic workpiece is installed is achieved.
Description
Technical Field
The utility model relates to a riveting nut, especially a can be used to prevent changeing riveting nut on plastic workpiece.
Background
The plastic workpieces are widely applied to the fields of mechanical automobile electronics and the like, particularly, with the rapid development of the automobile industry, the nation has more and more severe requirements on carbon emission, more and more plastic workpieces are used for various parts of an automobile, such as a front end frame, an inner decoration, a front bumper, a rear bumper and the like of the automobile, but when the plastic workpieces in the prior art are used for connecting other workpieces, hexagonal nuts or inserts are mostly adopted for preventing rotation, and therefore in-mold injection molding or hexagonal holes are required to be formed in advance through injection molding. To the position of inconvenient hexagonal hole of moulding plastics, just need come the shaping hexagonal hole through the mode of machine tooling, the processing degree of difficulty is higher and machining efficiency is very low.
Disclosure of Invention
The utility model aims at providing a plastic workpiece is with preventing changeing riveting nut in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a plastics work piece is with preventing changeing riveting nut, plastics work piece is with preventing changeing riveting nut's whole and is the T type, riveting nut includes hollow oval-shaped head 1 and health 2, head 1 sets up the upper end at health 2, 1 outer peripheral face of head is non-circular structure, health 2 has along axially extended upper segment 3 and dog tail 4 for the outer peripheral face, riveting nut inside is equipped with cavity die cavity 6, 6 inner wall hypomere of cavity die cavity are the internal thread structure, pass through 5 transitions of obliquely entry chamfer between upper segment 3 and the dog tail 4.
Preferably, the outer circumference of the head 1 is provided with an elliptical structure.
Preferably, the outer circumferential surface of the head 1 is provided in a polygonal structure.
Preferably, the outer circumference of the head 1 is arranged in a quadrangular, pentagonal or hexagonal structure
One of (1) and (b). More preferably, the outer peripheral surface of the upper section 3 is of a cylindrical configuration.
More preferably, the outer wall of the upper section 3 is provided with a vertical knurling.
More preferably, the upper section 3 is connected with the head portion through a rounded transition.
Preferably, the angle of the inclination angle of the inlet chamfer 5 is 10 to 35 degrees.
Preferably, the angle of inclination of the inlet chamfer 5 is 15 degrees.
Preferably, the riveting nut is made of full cold heading materials, stainless steel, aluminum or copper.
The utility model has the advantages that:
the utility model is provided with a non-circular head at the head of the riveting nut, after the riveting nut is arranged on a plastic workpiece, the non-circular head of the riveting nut is matched with a sinking platform on the plastic workpiece, and the head height of the riveting nut is matched with the depth of the sinking platform; the head of the riveting nut and the bulge formed by the hollow cavity rivet the riveting nut on the plastic workpiece; because the non-circular head of the riveting nut is matched with the sinking platform on the plastic workpiece, the riveting nut can not rotate even if the bolt is screwed on the internal thread to apply corresponding locking torque after riveting.
Drawings
FIG. 1 is a schematic cross-sectional view of an anti-rotation rivet nut for plastic workpieces.
Fig. 2 is a schematic perspective view of an anti-rotation rivet nut for a plastic workpiece.
FIG. 3 is a structure of the clinched nut after clinching; reference numeral 12 in the figure indicates a swollen part of the body after the rivet is pulled.
Fig. 4 is a view showing the structure in which the outer peripheral surface of the head portion is formed in an elliptical shape.
Detailed Description
The technical scheme of the utility model is not explained with the attached drawings:
as shown in figures 1-2:
the utility model provides a plastics work piece is with preventing changeing riveting nut, plastics work piece is with preventing changeing riveting nut's whole and is the T type, riveting nut includes hollow oval-shaped head 1 and health 2, head 1 sets up the upper end at health 2, 1 outer peripheral face of head is non-circular structure, health 2 has along axially extended upper segment 3 and dog tail 4 for the outer peripheral face, riveting nut inside is equipped with cavity die cavity 6, 6 inner wall hypomere of cavity die cavity are the internal thread structure, pass through 5 transitions of obliquely entry chamfer between upper segment 3 and the dog tail 4.
The internal thread structure of the lower section of the inner wall of the hollow cavity 6 can play a role in providing internal threads after the riveting nut is riveted on the plastic workpiece, and the assembled plastic workpiece and other workpieces can be connected through the internal thread bolt structure.
The depth of the hollow cavity 6 in the body 2 should be as deep as possible under the condition of ensuring the riveting effect, so that a larger bulge is formed after the rivet pulling deformation, the pressure on the plastic workpiece is reduced, and the stress deformation of the plastic workpiece is reduced. The hollow cavity 6 is intended to be deformed to form a bulge after installation for riveting the riveting nut to a plastic workpiece.
In the present embodiment, it is preferable that the outer peripheral surface of the head 1 is provided with an elliptical configuration. As shown in fig. 4.
An oval sinking platform is also required to be arranged on the matched plastic workpiece, the center of the sinking platform is a round hole, the diameter of the round hole is matched with the outer diameter of the body of the riveting nut, and the oval sinking platform is matched with the head of the riveting nut in an oval shape.
In the present embodiment, it is preferable that the outer peripheral surface of the head portion 1 is provided in a polygonal structure.
In the present embodiment, it is preferable that the outer circumferential surface of the head portion 1 is provided in one of a quadrangular, pentagonal or hexagonal configuration.
When a polygonal head structure such as a quadrangle head structure is adopted, a matched quadrangle sinking platform can be arranged on the plastic workpiece, and one or more raised ribs can be arranged on the plastic workpiece to clamp one straight edge or a plurality of straight edges of the polygonal head of the riveting nut, so that the operation is easier than the injection molding of a quadrangle sinking platform.
In this embodiment, it is more preferable that the outer peripheral surface of the upper section 3 is a cylindrical structure.
In this embodiment, it is more preferable that the outer wall of the upper section 3 is provided with a vertical knurling.
In this embodiment, it is more preferable that the upper section 3 and the head are connected by a rounded transition.
Wherein the outer part of the upper section is of a circular structure, and the upper section is in transition connection with the head part through a fillet; the transition fillet is favorable to the cold-heading machine-shaping of product, improves the mould life-span simultaneously and reduces the processing manufacturing cost of mould.
In this embodiment, the angle of the inclination angle of the inlet chamfer 5 is preferably 10 to 35 degrees.
In this embodiment, the angle of the inclination angle of the inlet chamfer 5 is preferably 15 degrees.
The inclination angle of the inlet chamfer 5 is controlled to be 10-35 degrees, which is beneficial to playing a role in guiding when the riveting nut is installed. If manual installation is adopted, 15-degree inlet chamfer angles are generally adopted.
In this embodiment, preferably, the riveting nut is made of a full cold heading material, stainless steel, aluminum or copper.
The riveting nut is made of full cold heading materials, stainless steel, aluminum or copper, and cold heading ensures that metal flow lines inside the metal insert are continuous, so that the strength of the metal insert is improved. Also, cold heading techniques reduce the generation of scrap so that they are economically more advantageous than machining techniques or techniques requiring secondary machining. The product can also be machined, but the cost of the turning is very high, firstly, the turning of the oval or polygonal head is difficult, secondly, a lot of materials are wasted, and the machining efficiency is very low.
Finally, it should be noted that:
the skilled person can, with reference to the present disclosure, carry out the method and carry out its application, it being expressly noted that all similar substitutes and modifications apparent to the skilled person are deemed to be included within the present invention. The method and application of the present invention have been described in terms of preferred embodiments, and it will be apparent to those skilled in the art that the techniques of the present invention may be practiced and used without departing from the spirit and scope of the present invention by modifying or otherwise appropriately changing or combining the various methods and applications of the present invention.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, and the appended claims are intended to cover such modifications and equivalents as fall within the spirit and scope of the invention.
Claims (9)
1. The utility model provides a plastics work piece is with preventing changeing riveting nut which characterized in that:
plastics work piece is with preventing changeing whole of riveting nut is the T type, the riveting nut includes hollow oval-shaped head (1) and health (2), head (1) sets up the upper end at health (2), head (1) outer peripheral face is non-circular structure, health (2) have along axially extended upper segment (3) and dog tail (4) for the outer peripheral face, the inside cavity die cavity (6) that is equipped with of riveting nut, cavity die cavity (6) inner wall hypomere is internal thread structure, pass through oblique entry chamfer (5) transition between upper segment (3) and dog tail (4).
2. An anti-rotation rivet nut for plastic workpieces according to claim 1 wherein: the outer peripheral surface of the head part (1) is provided with an oval structure.
3. An anti-rotation rivet nut for plastic workpieces according to claim 1 wherein: the outer peripheral surface of the head part (1) is arranged to be a polygonal structure.
4. An anti-rotation rivet nut for plastic workpieces according to claim 3, characterized in that: the outer peripheral surface of the head part (1) is arranged in one of a quadrangular, pentagonal or hexagonal structure.
5. An anti-rotation rivet nut for plastic workpieces according to any one of claims 2 to 4, characterized in that: the outer peripheral surface of the upper section (3) is of a cylindrical structure.
6. An anti-rotation rivet nut for plastic workpieces according to claim 5, characterized in that: the outer wall of the upper section (3) is provided with a vertical knurling.
7. An anti-rotation rivet nut for plastic workpieces according to claim 1 wherein: the angle of the inclination angle of the inlet chamfer (5) is 10-35 degrees.
8. An anti-rotation rivet nut for plastic workpieces according to claim 1 wherein: the angle of inclination of the inlet chamfer (5) is 15 degrees.
9. An anti-rotation rivet nut for plastic workpieces according to claim 1 wherein:
the riveting nut is made of full cold heading materials, stainless steel, aluminum or copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920694503.1U CN210318111U (en) | 2019-05-16 | 2019-05-16 | Anti-rotation riveting nut for plastic workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920694503.1U CN210318111U (en) | 2019-05-16 | 2019-05-16 | Anti-rotation riveting nut for plastic workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318111U true CN210318111U (en) | 2020-04-14 |
Family
ID=70138568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920694503.1U Active CN210318111U (en) | 2019-05-16 | 2019-05-16 | Anti-rotation riveting nut for plastic workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210318111U (en) |
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2019
- 2019-05-16 CN CN201920694503.1U patent/CN210318111U/en active Active
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