CN204300070U - Loose pin - Google Patents
Loose pin Download PDFInfo
- Publication number
- CN204300070U CN204300070U CN201420700501.6U CN201420700501U CN204300070U CN 204300070 U CN204300070 U CN 204300070U CN 201420700501 U CN201420700501 U CN 201420700501U CN 204300070 U CN204300070 U CN 204300070U
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- CN
- China
- Prior art keywords
- pin
- fixed cover
- loose pin
- loose
- sidewall
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- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a kind of loose pin.Described loose pin comprises removable pin, spring, fixed cover, base, air admission hole and sealing ring, described spring one end connects described removable pin, the other end connects described fixed cover, described fixed cover connects described base, described fixed cover comprises sidewall and cylindrical hole, and described air admission hole is located at described sidewall and is communicated with described cylindrical hole.The loose pin that the utility model provides is reasonable in design, effectively can solve the problem that existing loose pin cannot reset because of removable pin that the impurity such as iron filings cause, accurate positioning, long service life.
Description
Technical field
The utility model relates to a kind of positioner, particularly relates to a kind of loose pin.
Background technology
In automobile die instrument, usually need to position specific hole.Instrument conventional at present adopts loose pin to position, the loose pin Problems existing of prior art is: after loose pin work a period of time, iron filings and the oil containing solid impurity easily enter the gap of removable pin and sidewall in the course of the work, frictional force between removable pin and sidewall is increased, and then cause removable pin to reset, thus affect workpiece and accurately locate, the precise decreasing of work pieces process is even directly scrapped.Also can reduce the service life of removable pin in addition.
Utility model content
In order to solve the technical problem that the finger setting of prior art activity orientation is inaccurate, service life is short, the utility model provides the loose pin of a kind of accurate positioning, long service life.
A kind of loose pin, comprise removable pin, spring, fixed cover, base, air admission hole and sealing ring, described spring one end connects described removable pin, and the other end connects described base, described fixed cover connects described base, and described fixed cover is all located at by described air admission hole and described sealing ring.
In a kind of preferred embodiment of the loose pin provided at the utility model, described fixed cover comprises cylindrical hole and sidewall, and described sidewall is arranged around described cylindrical hole, and described sidewall connects described base.
In a kind of preferred embodiment of the loose pin provided at the utility model, described air admission hole is located at described sidewall, and is communicated with described cylindrical hole.
In a kind of preferred embodiment of the loose pin provided at the utility model, described removable pin one end is contained in described cylindrical hole, and described spring is contained in described cylindrical hole, and two ends connect described base and described removable pin respectively.
In a kind of preferred embodiment of the loose pin provided at the utility model, described sealing ring is located between described sidewall and described removable pin, and described sealing ring and described removable pin are matched in clearance.
Compared to prior art, the advantage of the loose pin that the utility model provides is:
During described loose pin work, gas passes into air admission hole, because described air admission hole is connected with described cylindrical hole, and described loose pin and described sealing ring are matched in clearance, gas blows out along the gap of described cylindrical hole and described alignment pin, thus the wet goods overcoming iron filings in prior art and be mixed with solid impurity enters the gap between removable pin and sidewall, and cause the increase of frictional force, and then make described removable pin can not normal reset and side defect easy to wear, thus making product orientation more accurate, machining accuracy significantly improves; In addition, extend the service life of described loose pin.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the perspective view of the loose pin that the utility model provides;
Fig. 2 is the sectional view of loose pin shown in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is the perspective view of the loose pin that the utility model provides, and Fig. 2 is the sectional view of loose pin shown in Fig. 1.Described loose pin 1 comprises removable pin 11, spring 13, fixed cover 15, base 16, air admission hole 17 and sealing ring 19.Described spring 13 is located between described removable pin 11 and described base 16, and one end abuts described removable pin 11, and the other end abuts described base 16, and described fixed cover 15 connects described base 16.
Described removable pin 11 comprises inclined-plane 111 and L shape groove 113.Described inclined-plane 111 and L shape groove 113 are oppositely arranged and are all located at described removable pin 11 top, for positioning workpiece.Described fixed cover 15 is cirque structure, comprises cylindrical hole 151 and sidewall 153, and described air admission hole 17 is located at described sidewall 153, and is communicated with described cylindrical hole 151.Specifically, described air admission hole 17 shape is not limit, and is connected with aerating device.
Described sealing ring 19 is located between described removable pin 11 and described sidewall 153, and described sealing ring 19 and described removable pin 11 matched in clearance.
When described loose pin 1 works, workpiece transmission, when the inclined-plane 111 of loose pin 11 described in end in contact before workpiece, described loose pin 11 is because being subject to radial pressure, axial compressive force is converted into by described inclined-plane 111, force described spring 13 to be out of shape, described removable pin 11 moves down thereupon, and workpiece can pass through smoothly; When workpiece end drives to described L shape groove 113, described removable pin 11 axial force disappears, and described loose pin 11 resets rapidly because described spring 13 is out of shape the thrust produced, and workpiece end is stuck in described L shape groove 113, reaches the object of location.
In addition, gas constantly passes into air admission hole 17 from aerating device, because described air admission hole 17 is connected with cylindrical hole 151, and described loose pin 11 is matched in clearance with described sealing ring 19, gas blows out along the gap of described cylindrical hole 151 and described loose pin 11, thus the wet goods overcoming iron filings in prior art and be mixed with solid impurity enters the gap between described removable pin 11 and described sidewall 153 and the frictional force increased, make removable pin can not normal reset and side defect easy to wear, product orientation is more accurate, and machining accuracy significantly improves.In addition, the service life that activity orientation 11 is sold extends.
Compared with prior art, loose pin of the present utility model is reasonable in design, and can solve described removable pin that prior art causes because of impurity such as iron filings can not the problem of normal reset.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a loose pin, comprise removable pin, spring, fixed cover and base, described spring one end connects described removable pin, the other end connects described fixed cover, described fixed cover connects described base, it is characterized in that, described loose pin also comprises air admission hole, and described air admission hole is located at described fixed cover.
2. loose pin according to claim 1, is characterized in that, described fixed cover comprises cylindrical hole and sidewall, and described side wall ring is arranged around described cylindrical hole, and described sidewall connects described base.
3. loose pin according to claim 2, is characterized in that, described air admission hole is located at described sidewall, and is communicated with described cylindrical hole.
4. loose pin according to claim 2, is characterized in that, described removable pin one end is contained in described cylindrical hole, and described spring is contained in described cylindrical hole, and two ends connect described base and described removable pin respectively.
5. loose pin according to claim 2, is characterized in that, described loose pin also comprises sealing ring, and described sealing ring is located between described sidewall and described removable pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700501.6U CN204300070U (en) | 2014-11-20 | 2014-11-20 | Loose pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700501.6U CN204300070U (en) | 2014-11-20 | 2014-11-20 | Loose pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300070U true CN204300070U (en) | 2015-04-29 |
Family
ID=53105613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420700501.6U Active CN204300070U (en) | 2014-11-20 | 2014-11-20 | Loose pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300070U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106112907A (en) * | 2016-08-25 | 2016-11-16 | 湖南艾华集团股份有限公司 | A kind of finding or the auxiliary device of little bearing assembling |
| CN107589062A (en) * | 2017-09-01 | 2018-01-16 | 合肥风生水起信息科技有限公司 | A kind of xenon lamp weather-resistant test box |
-
2014
- 2014-11-20 CN CN201420700501.6U patent/CN204300070U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106112907A (en) * | 2016-08-25 | 2016-11-16 | 湖南艾华集团股份有限公司 | A kind of finding or the auxiliary device of little bearing assembling |
| CN107589062A (en) * | 2017-09-01 | 2018-01-16 | 合肥风生水起信息科技有限公司 | A kind of xenon lamp weather-resistant test box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |