CN219774513U - Steel nest for plastic with positioning and rotation preventing functions - Google Patents
Steel nest for plastic with positioning and rotation preventing functions Download PDFInfo
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- CN219774513U CN219774513U CN202321368554.8U CN202321368554U CN219774513U CN 219774513 U CN219774513 U CN 219774513U CN 202321368554 U CN202321368554 U CN 202321368554U CN 219774513 U CN219774513 U CN 219774513U
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- positioning
- main body
- steel
- steel nest
- nest
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 229920003023 plastic Polymers 0.000 title claims abstract description 34
- 239000004033 plastic Substances 0.000 title claims abstract description 34
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract description 17
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of connecting pieces, in particular to a steel nest for positioning anti-rotation plastic, which comprises a tubular main body, wherein the outer annular surface of the first end of the main body is provided with a first protruding edge extending outwards in the radial direction, the end surface of the first protruding edge is provided with at least one first positioning hole for positioning, and the outer annular surface of the main body is provided with a first groove for preventing the main body from rotating and reducing weight. The steel is nested to realize a positioning function when matched with a stamping protrusion on an external sheet metal part, and meanwhile has a good anti-rotation function.
Description
Technical Field
The utility model relates to the technical field of connecting pieces, in particular to a steel nest for positioning anti-rotation plastic.
Background
The fastening connection of plastic parts belongs to soft connection, and the torque attenuation of the soft connection is serious. The steel sleeve is embedded in the plastic hole, so that the risk of torque attenuation can be solved; meanwhile, the steel sleeve is embedded to improve the yield strength of the mounting point, so that the surface pressure of the mounting surface is improved, and the plastic cannot be crushed to cause connection failure. In addition, because of the high hardness of the steel nest, it is difficult to machine anti-rotation knurling on the outer annular surface of the steel nest.
Disclosure of Invention
In order to solve the problems, the utility model provides the steel nest for the plastic with the positioning and rotation preventing functions, which has the positioning function and also has a good rotation preventing function.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a steel nest for a plastic with positioning and rotation preventing functions, comprising: the outer annular surface of the first end of the main body is provided with a first protruding edge extending outwards in the radial direction, the end face of the first protruding edge is provided with at least one first positioning hole used for positioning, and the outer annular surface of the main body is provided with a first groove used for preventing the main body from rotating and used for reducing weight.
Preferably, the first grooves are arranged at equal intervals along the axis of the main body, so that the outer ring surface of the main body forms a tooth-shaped structure.
Preferably, the first positioning hole is a kidney-shaped hole penetrating through the first convex edge.
Preferably, the long axis of the kidney-shaped hole is perpendicular to the radial direction of the main body where the center of the kidney-shaped hole is located.
Preferably, at least one second positioning hole for auxiliary positioning is formed in the first protruding edge.
Preferably, the outer annular surface of the second end of the body has a second radially outwardly extending flange, and the first flange and the second flange are both annular flanges.
Preferably, the first groove extends in a direction parallel to the axial direction of the main body.
Preferably, the end of the first groove extends to the first flange, and the second end of the first groove extends to the other end face of the main body.
Preferably, the kidney-shaped aperture coincides with an end axial position of a portion of the first recess.
The beneficial effects of using the utility model are as follows:
the steel nest with the positioning anti-rotation plastic is provided with the first convex edge at the first end face, the first convex edge is provided with the kidney-shaped hole for preventing the steel nest from rotating, and after the steel nest is arranged in a plastic matrix structure, a stamping protrusion formed by stamping on a sheet metal part during assembly with the sheet metal part is inserted into the kidney-shaped hole, so that the effect of preventing the steel nest from rotating is realized.
Secondly, because the outer ring surface of the main body is provided with the groove, the groove is integrally formed along with the steel nesting process, the traditional rolling-preventing structure with knurled outer surface of the main body is replaced, the rolling-preventing effect is better, and meanwhile, the steel nesting weight-reducing effect is achieved.
Drawings
FIG. 1 is an isometric view of a steel nest for a plastic with locating anti-rotation according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a steel nest for positioning and anti-rotation plastic in accordance with an embodiment of the present utility model.
The reference numerals include:
1-first convex edge, 11-round hole, 12-waist shape hole, 2-second convex edge, 3-main body, 31-first groove, 32-second groove, 33-third groove, 4-center hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present technical solution more apparent, the present technical solution is further described in detail below in conjunction with the specific embodiments. It should be understood that the description is only illustrative and is not intended to limit the scope of the present technical solution.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As described above, the inventor has found that, in the production process, generally, when assembling a workpiece, since the assembly of the sheet metal part and the plastic part needs to be positioned, a plurality of positioning holes are machined on the surface of the plastic part, steel nests are mounted on the positioning holes, and the steel nests are positioned in cooperation with the stamping protrusions of the sheet metal part through the plurality of positioning holes, but the number of the types of the positioning manner nests is large, which causes the increase of cost and the increase of rejection rate caused by various reasons during production; some assembly schemes realize positioning through plastic positioning holes and a welding stud structure of an installation sheet metal part, and the scheme leads to the increase of the cost of the plastic structure, the cost of the installation sheet metal part and the increase of working procedures; still some schemes adopt plastics reference column and installation sheet metal component locating hole complex mode to realize the location, and this scheme shortcoming is that the reference column is higher than the easy fracture of bottom surface increases the cost of transportation, still need use auxiliary assembly frock if be used for the structure that needs the partial shipment in advance simultaneously.
In order to partially solve the above technical problems, as shown in fig. 1 and 2, the present embodiment proposes a steel nest for positioning anti-rotation plastic, which includes a tubular main body 3, a central hole 4 is formed at a central position of the main body 3, an outer annular ring of a first end of the main body 3 has a first flange 1 extending radially outwards, at least one first positioning hole penetrating the first flange 1 and used for positioning is formed on the first flange 1, the first positioning hole is a kidney-shaped concave structure, and in the present embodiment, the kidney-shaped concave structure is a kidney-shaped hole 12 penetrating the first flange.
Therefore, since the kidney-shaped hole 12 is formed in the first flange 1 in the steel nesting manner in the embodiment, and since the kidney-shaped hole 12 is of a non-central symmetry structure, when the stamping protrusions on the externally connected sheet metal part are matched, the sheet metal part is matched with the steel nesting manner to realize positioning by inserting the stamping protrusions into the kidney-shaped hole 12. In other embodiments, such as when the first flange 1 is thicker, the kidney-shaped recess structure may be replaced with a keyway.
Secondly, because the steel nest has the kidney-shaped hole 12 structure, the stamping protrusion on the sheet metal part can be integrally formed along with other structures of the sheet metal part, and the working procedure and the cost are not increased.
It should be noted that, the number, the positions and the shapes of the first positioning holes are not limited in this embodiment, for example, the number of the first positioning holes may be 1, or may be 2 or 3, and the shapes of the first positioning holes may be waist-shaped holes or bar-shaped holes, which may be set according to the production needs.
Further, at least one second positioning hole for auxiliary positioning is formed in the first flange 1, the second positioning hole may be a circular hole 11, the kidney-shaped hole 12 is used as a main positioning structure, the circular hole 11 is used as an auxiliary positioning structure, the circular hole 11 is matched with another stamping protrusion on the sheet metal part, that is, the number and positions of the stamping protrusions on the sheet metal part are consistent with those of the kidney-shaped hole 12 and the circular hole 11 on the steel nest, and the positions of the stamping protrusions are corresponding to each other.
In the present embodiment, the circular holes 11 and the kidney-shaped holes 12 are arranged at equal intervals along the axis of the main body 3 as the center, which is advantageous in maintaining the rigidity of the first flange 1 and the main body 3. In some embodiments, the round holes 11 and the kidney-shaped holes 12 may also be formed at non-equidistant positions according to the structural requirements.
In one embodiment, the long axis of the kidney-shaped aperture 12 is perpendicular to the radial direction of the body 3 where the center of the kidney-shaped aperture 12 is located.
Further, the outer annular surface of the second end of the main body 3 is provided with an annular second protruding edge 2 extending outwards in the radial direction, the second protruding edge 2 and the first protruding edge 1 are symmetrically arranged at two ends of the main body 3, the structure and the size are consistent, in the embodiment, the first protruding edge 1 is used as the bottom surface of the steel nest, the second protruding edge 2 is used as the top surface of the steel nest, the steel nest is further made to be of an I-shaped structure as a whole, and the steel nest can play a limiting role through the first protruding edge 1 and the second protruding edge 2 when being installed on an external sheet metal part.
It will be appreciated that in other embodiments, the first flange 1 may also be used as the top surface of a steel nest, while the second flange 2 may be used as the bottom surface of a steel nest, and the manner of use is not limited in this embodiment.
In the use process of the steel nest, the conventional steel nest is made of 45# steel, the 45# steel is high in hardness, knurling for preventing rotation of the steel nest is not easy to process on the outer annular surface of the steel nest, and a knurling cutter is very damaged by the knurling.
As shown in fig. 2, the outer circumferential surface of the main body 3 has a first groove 31 for preventing the main body 3 from rotating and for reducing weight. Thus, after the steel nest of the present embodiment is installed in the plastic member, the first groove 31 is rigidly connected to the plastic member without frictional contact, thereby fundamentally solving the problem of preventing the steel nest from rotating.
In order to increase the contact area between the steel nest and the plastic part, the first groove 31 extends in a direction parallel to the axial direction of the main body 3 and penetrates the main part of the main body 3, and in this embodiment, two ends of the first groove 31 extend to the first flange 1 and the second flange 2, respectively.
The kidney-shaped hole 12 and the round hole 11 are axially coincident with the end of a part of the first groove 31, and the main part of the body 3 is axially penetrated when the kidney-shaped hole 12 and the round hole 11 are machined, namely a second groove 32 and a third groove 33 as shown in fig. 2, the cross section of the second groove 32 is a part of the circular cross section, and the cross section of the third groove 33 is a part of the cross section of the kidney-shaped hole 12.
It can be understood that the first grooves 31 are formed integrally with the steel nest, and the plurality of first grooves 31 are arranged at equal intervals along the axis of the main body 3 as the center, so that the outer annular surface of the main body 3 forms a tooth-shaped structure, and the anti-rotation capability of the steel nest is maximized.
The steel nest with the positioning anti-rotation plastic is provided with the first convex edge 1 at the first end face, the first convex edge 1 is provided with the kidney-shaped hole 12 for preventing the steel nest from rotating, after the steel nest is arranged in a plastic matrix structure, a stamping protrusion formed by stamping on a sheet metal part during assembly with the sheet metal part is inserted into the kidney-shaped hole 12 to realize the positioning function, and secondly, the outer annular surface of the main body is provided with the groove, and the groove is integrally formed along with the steel nest process, so that the steel nest anti-rotation plastic replaces the traditional rolling structure with knurling on the outer surface of the main body, has better rolling prevention effect, and simultaneously has the functions of reducing weight of the steel nest and preventing the steel nest from rotating.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The foregoing is merely exemplary of the present utility model, and those skilled in the art can make many variations in the specific embodiments and application scope according to the spirit of the present utility model, as long as the variations do not depart from the spirit of the utility model.
Claims (9)
1. A steel nest for a plastic with positioning and rotation preventing functions, which is characterized by comprising: the outer annular surface of the first end of the main body is provided with a first protruding edge extending outwards in the radial direction, the end face of the first protruding edge is provided with at least one first positioning hole used for positioning, and the outer annular surface of the main body is provided with a first groove used for preventing the main body from rotating and used for reducing weight.
2. The steel nest for a belt positioning anti-rotation plastic according to claim 1, wherein: the first grooves are arranged at equal intervals along the axis of the main body, so that the outer ring surface of the main body forms a tooth-shaped structure.
3. The steel nest for a belt positioning anti-rotation plastic according to claim 1, wherein: the first positioning hole is a kidney-shaped hole penetrating through the first convex edge.
4. A steel nest for a belt positioning anti-rotation plastic according to claim 3, wherein: the long axis of the kidney-shaped hole is perpendicular to the radial direction of the main body where the center of the kidney-shaped hole is located.
5. The steel nest for a plastic with positioning and rotation preventing function according to any one of claims 1 to 4, wherein: at least one second positioning hole for auxiliary positioning is formed in the first protruding edge.
6. The steel nest for a belt positioning anti-rotation plastic according to claim 1, wherein: the outer annular surface of the second end of the main body is provided with a second convex edge extending outwards in the radial direction, and the first convex edge and the second convex edge are annular convex edges.
7. The steel nest for a belt positioning anti-rotation plastic according to claim 1, wherein: the first groove extends in a direction parallel to an axial direction of the main body.
8. The steel nest for a belt positioning anti-rotation plastic according to claim 7, wherein: the end of the first groove extends to the first convex edge, and the second end of the first groove extends to the other end face of the main body.
9. A steel nest for a belt positioning anti-rotation plastic according to claim 3, wherein: the kidney-shaped hole coincides with an axial position of a part of the end part of the first groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321368554.8U CN219774513U (en) | 2023-05-31 | 2023-05-31 | Steel nest for plastic with positioning and rotation preventing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321368554.8U CN219774513U (en) | 2023-05-31 | 2023-05-31 | Steel nest for plastic with positioning and rotation preventing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774513U true CN219774513U (en) | 2023-09-29 |
Family
ID=88110980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321368554.8U Active CN219774513U (en) | 2023-05-31 | 2023-05-31 | Steel nest for plastic with positioning and rotation preventing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774513U (en) |
-
2023
- 2023-05-31 CN CN202321368554.8U patent/CN219774513U/en active Active
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