CN203532458U - Positioning structure - Google Patents
Positioning structure Download PDFInfo
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- CN203532458U CN203532458U CN201320638536.7U CN201320638536U CN203532458U CN 203532458 U CN203532458 U CN 203532458U CN 201320638536 U CN201320638536 U CN 201320638536U CN 203532458 U CN203532458 U CN 203532458U
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- Prior art keywords
- positioning pin
- pin hole
- locating stud
- air escape
- escape orifice
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- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000011900 installation process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
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Abstract
The utility model discloses a positioning structure which comprises a first part (1) and a second part (2). The first part (1) and the second part (2) are provided with a positioning pin hole (3) formed from the first part (1) to the second part (2) and penetrating through the first part (1) and the second part (2), the first part (1) and the second part (2) are mutually connected and positioned through a positioning pin (4) arranged in the positioning pin hole (3), and the bottom of the positioning pin hole (3) is provided with at least one air escape hole (5) enabling an inner cavity of the positioning pin hole (3) to be communicated with exterior space of the second part (2). It can be guaranteed that compressed high-pressure air cannot be accumulated in the positioning pin hole after the positioning pin is installed, and potential safety hazards caused by long-term accumulation and compression of high-pressure air are avoided.
Description
Technical field
The utility model relates to positioning device technical field, especially, relates to a kind of positioning structure.
Background technique
Aeroengine precise structure, has several ten thousand component, and wherein the requirement of the relative position between many component is very high, need to accurately locate.For example, present aeroengine adopts cell cube formula design (as gas compressor cell cube, turbine unit body etc.) more, and two or more supportings of engine rotor need to be arranged in different cell cubes, in order to guarantee the safe and reliable running of rotor energy of high rotating speed large rotating inertia, coaxality between supporting after assembling requires very high, at this moment conventionally need to so that precision positioning pin to be installed, realize the accurate location between cell cube by positioning pin hole is set in cell cube.
The positioning pin hole of at present existing related art scheme is blind hole, can cause the gas pressure in blind hole increasing in locating stud installation process, hinders locating stud and is accurately in place, and blind hole inner accumulated pressurized gas easily bring potential safety hazard simultaneously.
Model utility content
The utility model object is to provide a kind of positioning structure, to solve, gathers pressurized gas hinder the technical problem that locating stud was accurately in place, caused potential safety hazard in locating stud installation process in the blind hole that causes positioning pin hole.
For achieving the above object, according to an aspect of the present utility model, a kind of positioning structure is provided, comprise the first part and the second part, the first part and the second part are provided with positioning pin hole from the first part to the second part that offer and run through the first part and the second part from, between the first part and the second part, by the locating stud being installed in positioning pin hole, interconnect location, the bottom of positioning pin hole is provided with at least one air escape orifice that is communicated with positioning pin hole inner chamber and the second part space outerpace.
Further, the bottom of positioning pin hole is set to flat, and air escape orifice is communicated with flat.
Further, the medial axis of air escape orifice is arranged along the axial direction of positioning pin hole, or the medial axis of air escape orifice is arranged along the direction of the axes intersect with positioning pin hole.
Further, the bottom of positioning pin hole is cone-shaped cavity, and air escape orifice is communicated with cone point or the conical surface of cone-shaped cavity.
Further, the medial axis of air escape orifice is arranged along the axial direction of positioning pin hole, or the medial axis of air escape orifice is arranged along the direction of the axes intersect with positioning pin hole.
Further, locating stud is at least provided with the chamfering for facilitating locating stud to install in one end.
Further, locating stud and the first part interconnect by Spielpassung; Between locating stud and the second part, by interference fit, interconnect.
Further, the middle part of locating stud is provided with shoulder block, and the first part and the second part joint offer counter sink, and shoulder block mutually mates and is connected with counter sink.
Further, the internal diameter size of the positioning pin hole in the first part section is different from the internal diameter size of positioning pin hole in the second part section.
Further, positioning pin hole is set at least two.
The utlity model has following beneficial effect:
The bottom of positioning pin hole is communicated with positioning pin hole internal cavities and the second part space outerpace by air escape orifice, in locating stud installation process, by air escape orifice, the air in positioning pin hole inner chamber is overflowed, facilitate locating stud to be accurately in place, and can guarantee can not gather compressed high-pressure air in the positioning pin hole after locating stud is installed, avoid overstocking for a long time by high-pressure air the potential safety hazard causing.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model preferred embodiment positioning structure.
Marginal data:
1, the first part; 2, the second part; 3, positioning pin hole; 4, locating stud; 5, air escape orifice; 6, chamfering; 7, shoulder block; 8, counter sink.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Fig. 1 is the structural representation of the utility model preferred embodiment positioning structure, as shown in Figure 1, the positioning structure of the present embodiment, comprise the first part 1 and the second part 2, the first part 1 and the second part 2 are provided with offers and runs through the positioning pin hole 3 of the first part 1 and the second part 2 from the first part 1 to the second part 2, between the first part 1 and the second part 2, by the locating stud 4 being installed in positioning pin hole 3, interconnect location, the bottom of positioning pin hole 3 is provided with at least one and is communicated with positioning pin hole 3 inner chambers and the second part 2 space outerpace air escape orifices 5.The bottom of positioning pin hole 3 is communicated with positioning pin hole 3 internal cavities and the second part 2 space outerpaces by air escape orifice 5, in locating stud 4 installation processes, by air escape orifice 5, the air in positioning pin hole 3 inner chambers is overflowed, convenient locating stud 4 is accurately in place, and can guarantee can not gather compressed high-pressure air in the positioning pin hole 3 after locating stud 4 is installed, avoid overstocking for a long time by high-pressure air the potential safety hazard causing.
As shown in Figure 1, in the present embodiment, the bottom of positioning pin hole 3 is set to flat, and air escape orifice 5 is communicated with flat.In order to meet the structure needs of locating stud 4, flat shape is arranged to in the bottom of positioning pin hole 3, to meet structural design needs.
As shown in Figure 1, in the present embodiment, the medial axis of air escape orifice 5 is arranged along the axial direction of positioning pin hole 3, or the medial axis of air escape orifice 5 is arranged along the direction of the axes intersect with positioning pin hole 3.
As shown in Figure 1, in the present embodiment, the bottom of positioning pin hole 3 is cone-shaped cavity, and air escape orifice 5 is communicated with cone point or the conical surface of cone-shaped cavity.In order to meet the structure needs of locating stud 4, cone-shaped cavity is arranged to in the bottom of positioning pin hole 3, to meet structural design needs.And the structure of the positioning pin hole 3 that bottom is cone-shaped cavity is convenient to the manufacturing of rig.
As shown in Figure 1, in the present embodiment, the medial axis of air escape orifice 5 is arranged along the axial direction of positioning pin hole 3, or the medial axis of air escape orifice 5 is arranged along the direction of the axes intersect with positioning pin hole 3.Can be according to the communication direction of the environment change air escape orifice 5 of the installation position of the structure characteristic of part itself, part and setting, allow air escape orifice 5 ease airway dysfunction to fully playing, and allow the air that goes out of ease gas can not have influence on the even running of machinery of part.
As shown in Figure 1, in the present embodiment, locating stud 4 at least one end is provided with the chamfering 6 for facilitating locating stud 4 to install.While installing due to positioning pin hole 3, conventionally need to run through two above parts, between part, easily produce the skew of relative position, employing can be easily through the part that skew occurs with the locating stud 4 of chamfering 6, be convenient to installing and using of locating stud 4, avoid collision, the wearing and tearing of the seam areas of locating stud 4 in installation process and between part.
As shown in Figure 1, in the present embodiment, between locating stud 4 and the first part 1, by Spielpassung, interconnect; Between locating stud 4 and the second part 2, by interference fit, interconnect.The overall structure stability connecting is better, the better tightness after connection.
In the present embodiment, the middle part of locating stud 4 is provided with shoulder block 7, the first parts 1 and the second part 2 joints offer counter sink 8, and shoulder block 7 mutually mates and is connected with counter sink 8.Can play the effect of auxiliary positioning for locating stud 4 and being connected of positioning pin hole 3, prevent that locating stud 4 from stretching into transition and causing the damage of positioning pin hole 3 along axial direction.
In the present embodiment, the internal diameter size of the positioning pin hole 3 in 1 section of the first part is different from the internal diameter size of positioning pin hole 3 in 2 sections of the second parts.Design one is validity and the stability that can guarantee connection like this; The 2nd, be convenient to install.
In the present embodiment, positioning pin hole 3 is set at least two.Can effectively prevent the mutual rotation between the first part 1 and the second part 2, play the structure stability keeping between the first part 1 and the second part 2.
During enforcement, adopt the positioning pin hole 3 with air escape orifice 5.On the first part 1, be provided for the precision positioning pin-and-hole 3 coordinating with locating stud, the air escape orifice 5 of the general precision that while being provided for locating stud 4 installation in the bottom of positioning pin hole 3, air is overflowed simultaneously.Positioning pin hole 3 is positioned at the upper top of the second part 2, one end of locating stud 4 by and positioning pin hole 3 between interference and the second part 2 combine closely; The through hole that air escape orifice 5 is general precision, it is positioned at lower end or the bottom of positioning pin hole 3, the gas being extruded for discharging locating stud 4 installation processes.The second part 2 coordinates with the other end of mounted locating stud 4 by gap.Operated by rotary motion positioning pin hole 3 and locating stud 4 more than two between two parts, to realize accurate location.
Positioning pin hole 3 with air escape orifice 5 comprises macropore (positioning pin hole 3) and two holes of aperture (air escape orifice 5), these two holes are all arranged on the second part 2, macropore (positioning pin hole 3) diameter is 3～10mm (general round numbers), be positioned at the upper top of the second part 2, need precision machining to form, the lower end of locating stud 4 by with macropore (positioning pin hole 3) between interference fit be connected with the second part 2, interference fit connects and can guarantee that locating stud 4 and the second part 2 are combined closely and can not become flexible in the course of the work, interference fit type is chosen by table 1 according to actual conditions, the diameter of aperture (air escape orifice 5) is chosen by table 2 according to actual conditions, this hole is the through hole that roughing forms, it is positioned at lower end or the bottom of macropore (positioning pin hole 3), direction is determined according to the convenience of processing, aperture in Fig. 1 (air escape orifice 5) is the example of two optional directions, but the side that the selection of aperture (air escape orifice 5) direction need guarantee can not destroy macropore (positioning pin hole 3).The first part 1 coordinates with the upper end of locating stud 4 by gap.Operated by rotary motion positioning pin hole 3 and locating stud 4 more than two between the first part 1 and the second part 2, to realize accurate location.
Choosing of table 1 interference type
Choosing of table 2 hole diameter
After the positioning pin hole 3 of design with air escape orifice 5, locating stud 4 is in clamp-oning the process of the second part 2, air in macropore (positioning pin hole 3) can be overflowed from aperture (air escape orifice 5), in hole, can not gather pressurized gas, also therefore resistance not, thus guarantee that locating stud 4 is in place.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a positioning structure, comprises the first part (1) and the second part (2),
Described the first part (1) and described the second part (2) are provided with positioning pin hole (3) from described the first part (1) to described the second part (2) that offer and run through the first part (1) and the second part (2) from,
Between described the first part (1) and described the second part (2), by the locating stud (4) being installed in described positioning pin hole (3), interconnect location,
It is characterized in that,
The bottom of described positioning pin hole (3) is provided with at least one air escape orifice (5) that is communicated with described positioning pin hole (3) inner chamber and described the second part (2) space outerpace.
2. positioning structure according to claim 1, is characterized in that, the bottom of described positioning pin hole (3) is set to flat, and described air escape orifice (5) is communicated with described flat.
3. positioning structure according to claim 2, it is characterized in that, the medial axis of described air escape orifice (5) is arranged along the axial direction of described positioning pin hole (3), or the medial axis of described air escape orifice (5) is arranged along the direction of the axes intersect with described positioning pin hole (3).
4. positioning structure according to claim 1, is characterized in that, the bottom of described positioning pin hole (3) is cone-shaped cavity, and described air escape orifice (5) is communicated with cone point or the conical surface of cone-shaped cavity.
5. positioning structure according to claim 4, it is characterized in that, the medial axis of described air escape orifice (5) is arranged along the axial direction of described positioning pin hole (3), or the medial axis of described air escape orifice (5) is arranged along the direction of the axes intersect with described positioning pin hole (3).
6. according to the positioning structure described in any one in claim 1 to 5, it is characterized in that, described locating stud (4) at least one end is provided with the chamfering (6) for facilitating described locating stud (4) to install.
7. according to the positioning structure described in any one in claim 1 to 5, it is characterized in that, described locating stud (4) interconnects by Spielpassung with described the first part (1); Between described locating stud (4) and described the second part (2), by interference fit, interconnect.
8. according to the positioning structure described in any one in claim 1 to 5, it is characterized in that, the middle part of described locating stud (4) is provided with shoulder block (7), described the first part (1) offers counter sink (8) with described the second part (2) joint, and described shoulder block (7) mutually mates and is connected with described counter sink (8).
9. according to the positioning structure described in any one in claim 1 to 5, it is characterized in that, the internal diameter size of the described positioning pin hole (3) in described the first part (1) section is different with the internal diameter size of described positioning pin hole (3) in described the second part (2) section.
10. according to the positioning structure described in any one in claim 1 to 5, it is characterized in that, described positioning pin hole (3) is set at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638536.7U CN203532458U (en) | 2013-10-16 | 2013-10-16 | Positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638536.7U CN203532458U (en) | 2013-10-16 | 2013-10-16 | Positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532458U true CN203532458U (en) | 2014-04-09 |
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ID=50418671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638536.7U Expired - Lifetime CN203532458U (en) | 2013-10-16 | 2013-10-16 | Positioning structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203532458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317610A (en) * | 2018-11-14 | 2019-02-12 | 安徽应流集团霍山铸造有限公司 | A kind of craft sand mold casting device |
| CN111301137A (en) * | 2020-03-26 | 2020-06-19 | 北京金茂绿建科技有限公司 | Collision protection positioning structure |
-
2013
- 2013-10-16 CN CN201320638536.7U patent/CN203532458U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317610A (en) * | 2018-11-14 | 2019-02-12 | 安徽应流集团霍山铸造有限公司 | A kind of craft sand mold casting device |
| CN111301137A (en) * | 2020-03-26 | 2020-06-19 | 北京金茂绿建科技有限公司 | Collision protection positioning structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
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| CX01 | Expiry of patent term |