CN209838886U - Positioning pin and connecting assembly with same - Google Patents
Positioning pin and connecting assembly with same Download PDFInfo
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- CN209838886U CN209838886U CN201920194073.7U CN201920194073U CN209838886U CN 209838886 U CN209838886 U CN 209838886U CN 201920194073 U CN201920194073 U CN 201920194073U CN 209838886 U CN209838886 U CN 209838886U
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- 238000010276 construction Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 7
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
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Abstract
The utility model provides a locating pin and have its coupling assembling. Wherein, the locating pin includes: the pin body is provided with a through hole, and the through hole comprises a thread section and a unthreaded hole section; and the columnar body is connected in the unthreaded hole section. The technical scheme of this application has effectively solved the locating pin among the prior art and has rusted or the dead problem of card in the locating hole.
Description
Technical Field
The utility model relates to a machine-building, mechanical production field particularly, relate to a locating pin and have its coupling assembling.
Background
The positioning pin is a tool which is commonly used in a mechanical production line and used for fixing the connection position of two halves so as to improve the positioning precision. The method is more applied to high-precision flange joint surfaces, rotating pair wheel joint, bearing gear box body joint surfaces and the like.
After the positioning pin is used for fixing the equipment joint surface, the situation that the positioning pin is rusted and clamped is easily caused due to long-term non-dismounting use or transverse dislocation of the joint surface, the joint surface is not easy to separate, and meanwhile, the traditional positioning pin only has a positioning function.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a locating pin and have its coupling assembling to the locating pin among the solution prior art rusts in the locating hole and dies or the dead problem of card.
In order to achieve the above object, according to an aspect of the present invention, there is provided a positioning pin, including: the pin body is provided with a through hole, and the through hole comprises a thread section and a unthreaded hole section; and the columnar body is connected in the unthreaded hole section.
Further, the cylindrical body is installed in the unthreaded hole section through interference fit.
Further, the interference magnitude between the outer surface of the columnar body and the hole wall of the unthreaded hole section is between 0.5mm and 1.5 mm.
Furthermore, the interference magnitude between the outer surface of the columnar body and the hole wall of the unthreaded hole section is 1 mm.
Further, the through hole has a first end and a second end, the threaded section extends from the first end of the through hole to the middle of the through hole, and the unthreaded section extends from the second end of the through hole to the middle of the through hole.
Further, the length of the cylinder is smaller than the length of the unthreaded hole section.
Furthermore, the end face of the cylindrical body matched with the bolt is of a plane structure.
Further, the through hole is a central through hole.
According to the utility model discloses an on the other hand provides a coupling assembling, coupling assembling include the locating pin and with locating pin complex bolt, the locating pin is foretell locating pin.
Further, the length of the threaded section of the bolt is greater than the length of the threaded section of the locating pin.
Use the technical scheme of the utility model, seted up the through-hole on the round pin body, the through-hole includes screw thread section and unthreaded hole section. The columnar body is connected in the unthreaded hole section. In the present application, in the case of using a positioning pin, the unthreaded hole section is fitted into a cylindrical body, and the positioning pin is inserted into positioning holes of two parts to be connected. When the joint surfaces need to be separated, a bolt with a proper length can be screwed into the threaded section with the positioning pin. The bolt can withstand the columnar body, when the tightening force of the bolt screwed into the threaded section is greater than the friction force between the outer surface of the pin body and the hole wall of the positioning hole, the positioning pin can be loosened in the positioning hole, the pin body can move towards the bolt, the positioning pin can be pulled out, and the purpose of separating the joint surface is further achieved. In addition, the technical scheme of this application prevents effectively that the unable condition of separating of faying face that the dead card of faying face leads to of locating pin and faying face. Meanwhile, the joint surface separation of the positioning pin at the positioning hole can be completed, so that the operation process can be effectively improved, and the working efficiency is improved.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic cross-sectional view of an embodiment of a locating pin according to the present invention.
Wherein the figures include the following reference numerals:
1. positioning pins; 2. a bolt; 10. a pin body; 12. a through hole; 121. a threaded segment; 122. a smooth hole section; 20. a columnar body; 21. an end face.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
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 example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1, the positioning pin of the present embodiment includes: pin body 10 and cylinder body 20. The pin body 10 is provided with a through hole 12, and the through hole 12 comprises a thread section 121 and a smooth hole section 122. The cylinder 20 is attached within the aperture section 122.
By applying the technical solution of the present embodiment, the pin body 10 is provided with a through hole 12, and the through hole 12 includes a threaded section 121 and a smooth hole section 122. The cylinder 20 is attached within the aperture section 122. In the present embodiment, in the case of using the positioning pin, the unthreaded hole section 122 is fitted into the columnar body 20, and the positioning pin is inserted into the positioning hole of the two parts to be connected. When the joint surfaces need to be separated, a bolt with a proper length can be screwed into the threaded section 121 with the positioning pin. When the bolt abuts against the cylindrical body 20 and the tightening force of the bolt screwed into the threaded section 121 is greater than the friction force between the outer surface of the pin body 10 and the wall surface of the positioning hole, the positioning pin becomes loose in the positioning hole, the pin body 10 moves toward the bolt, the positioning pin can be pulled out, and the purpose of separating the joint surface is achieved. In addition, the technical scheme of this embodiment effectively prevents the unable condition of separating of faying face that the locating pin and faying face card lead to. Meanwhile, the joint surface separation of the positioning pin at the positioning hole can be completed, so that the operation process can be effectively improved, and the working efficiency is improved.
As shown in fig. 1, the cylindrical body 20 is installed in the unthreaded hole section 122 by interference fit, so that the cylindrical body 20 and the pin body 10 can be tightly fitted, when the bolt abuts against the cylindrical body 20, before the positioning pin and the positioning hole are loosened, it can be ensured that the cylindrical body 20 and the unthreaded hole section 122 do not move relatively, so as to provide a large reaction force for the cylindrical body 20, and thus the positioning pin and the positioning hole are loosened.
As shown in fig. 1, in the present embodiment, the interference between the outer surface of the cylindrical body 20 and the hole wall of the unthreaded hole section 122 is between 0.5mm and 1.5 mm. Thus, the reaction force that can be provided to ensure the cylindrical body 20 is sufficiently large to cause looseness between the positioning pin and the positioning hole.
As shown in fig. 1, in the present embodiment, in order to achieve a large reaction that the columnar body 20 can provide, while moving well in the hole wall of the unthreaded hole section 122, the interference between the outer surface of the columnar body 20 and the hole wall of the unthreaded hole section 122 is 1 mm.
As shown in fig. 1, in the present embodiment, the through hole 12 has a first end and a second end, the threaded section 121 extends from the first end of the through hole 12 to the middle of the through hole 12, and the unthreaded section 122 extends from the second end of the through hole 12 to the middle of the through hole 12. In this way, the smooth bore section 122 and the threaded section 121 are easily machined into the through bore 12.
As shown in fig. 1, in order to prevent the cylindrical body 20 from breaking the thread on the threaded section 121, the length of the cylindrical body 20 is smaller than the length of the unthreaded hole section 122.
As shown in fig. 1, in the present embodiment, end surface 21 of columnar body 20 engaged with the bolt has a planar structure. Thus, the reaction force of the cylindrical body 20 is applied along the central axis direction of the cylindrical body 20 to ensure that the acting force applied on the bolt does not deviate, and the difficulty in removing the joint surface caused by the dead and rusted positioning pin is avoided. Meanwhile, the positioning pin additionally provided with the threaded section 121 can be simply and effectively screwed in by using a bolt, and the purpose of separating the two joint surfaces is achieved, so that the efficiency of the disassembling work is greatly improved.
As shown in fig. 1, in the present embodiment, the through hole 12 is a center through hole for facilitating the fitting with a standard bolt.
The application still provides a coupling assembling, the coupling assembling of this embodiment include locating pin 1 and with 1 complex bolt 2 of locating pin, the locating pin is foretell locating pin. The positioning pin 1 can solve the problem that the positioning pin in the prior art is rusted or clamped in the positioning hole.
As shown in fig. 1, in the present embodiment, the length of the threaded section of the bolt 2 is greater than the length of the threaded section of the dowel pin 1. The positioning pin 1 is connected with a cylindrical body, so that the bolt 2 can abut against the cylindrical body under the condition that the screwing length between the bolt 2 and the positioning pin 1 is well matched.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship 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 of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A locating pin, comprising:
the pin comprises a pin body (10), wherein a through hole (12) is formed in the pin body (10), and the through hole (12) comprises a thread section (121) and a unthreaded hole section (122);
a cylindrical body (20) attached within the unthreaded bore section (122).
2. The dowel of claim 1, wherein the cylinder (20) is mounted within the unthreaded bore section (122) by an interference fit.
3. The dowel of claim 1, wherein the interference between the outer surface of the cylinder (20) and the bore wall of the unthreaded bore section (122) is between 0.5mm and 1.5 mm.
4. The dowel of claim 3, wherein the interference between the outer surface of the cylinder (20) and the bore wall of the unthreaded bore section (122) is 1 mm.
5. The locating pin according to claim 1, characterized in that the through hole (12) has a first end and a second end, the threaded section (121) extending from the first end of the through hole (12) towards the middle of the through hole (12), and the light hole section (122) extending from the second end of the through hole (12) towards the middle of the through hole (12).
6. The locating pin of claim 1, wherein the length of the cylinder (20) is less than the length of the unthreaded section (122).
7. The dowel according to claim 1, wherein the end surface (21) of the cylindrical body (20) that engages the bolt is of planar construction.
8. The dowel according to claim 1, wherein the through hole (12) is a central through hole.
9. A connecting assembly, characterized in that it comprises a dowel (1) according to any one of claims 1 to 8 and a bolt (2) cooperating with said dowel (1).
10. A connection assembly according to claim 9, characterized in that the length of the threaded section of the bolt (2) is greater than the length of the threaded section of the dowel pin (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920194073.7U CN209838886U (en) | 2019-02-12 | 2019-02-12 | Positioning pin and connecting assembly with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920194073.7U CN209838886U (en) | 2019-02-12 | 2019-02-12 | Positioning pin and connecting assembly with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209838886U true CN209838886U (en) | 2019-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920194073.7U Active CN209838886U (en) | 2019-02-12 | 2019-02-12 | Positioning pin and connecting assembly with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209838886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481001A (en) * | 2020-03-18 | 2020-08-04 | 合肥美的电冰箱有限公司 | Shelf device and storage cabinet |
-
2019
- 2019-02-12 CN CN201920194073.7U patent/CN209838886U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481001A (en) * | 2020-03-18 | 2020-08-04 | 合肥美的电冰箱有限公司 | Shelf device and storage cabinet |
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