CN201141380Y - Novel positioning pin - Google Patents
Novel positioning pin Download PDFInfo
- Publication number
- CN201141380Y CN201141380Y CNU2007201298598U CN200720129859U CN201141380Y CN 201141380 Y CN201141380 Y CN 201141380Y CN U2007201298598 U CNU2007201298598 U CN U2007201298598U CN 200720129859 U CN200720129859 U CN 200720129859U CN 201141380 Y CN201141380 Y CN 201141380Y
- Authority
- CN
- China
- Prior art keywords
- expansion
- pin
- expansion screw
- hole
- locating stud
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
Abstract
Disclosed is a novel positioning pin which is composed of a left segment and a right segment; the left segment is tightly connected with the right segment through a lug boss and a concave groove; the free ends of the two segments are provided with expansion screw holes with expansion grooves; expansion screws are arranged in the expansion screw holes; the expansion screw holes are matched with the expansion screws through conical surfaces. When the expansion screw is screwed in the expansion screw hole, the expansion groove opens and the expansion screw is fixed in the part pin hole. Because the expansion grooves opens according to the concentric circle of the pin, the axial line consistency of the pin after expansion is ensured; the size accuracy requirement of the pin hole can be reduced. When the pin needs to be replaced, the expansion screw is screwed out so that the pin can be taken out from the pin hole of the part easily and the operation is convenient. Because the contact part of the two segments is not contacted with the part directly, the damage of the pin hole on the part due to the frequent assembly and disassembly of the two matched parts is avoided.
Description
Technical field
The utility model relates to the pin in a kind of machinery, particularly a kind of novel locating stud.
Background technique
Existing pin, particularly selling in use the side directly to households often will use screw to be located, to prevent that two parts by pin location from bringing out pin separating from pin hole, when pin is installed, dimension precision requirement to pin hole is higher, difficulty of processing is big, and while two parts dismounting meeting continually damage pin hole, make pin lose locating accuracy.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, has proposed a kind of novel locating stud self-align, that conveniently change of realizing.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of novel locating stud, be characterized in: it be by about two sections constitute, closely be connected with groove fit by boss between two sections, two sections free end is set to the expansion thread hole with the expansion groove, and the swelling screw is housed in the expansion thread hole.
The technical problems to be solved in the utility model can also come further to realize by the following technical programs, about locating stud between two sections the center of cooperation place have exhaust hole.
The technical problems to be solved in the utility model can also be come by the following technical programs further to realize, be had exhaust port at the center of swelling screw.
The technical problems to be solved in the utility model can also be come by the following technical programs further to realize, can be adopted cone match between expansion thread hole and the swelling screw.
The technical problems to be solved in the utility model can also come to realize that further the expansion groove of expansion thread hole periphery is set to 2～5 by the following technical programs.
The utility model compared with prior art, about two sections be combined into a whole pin, simultaneously be provided with expansion thread hole and swelling screw at two sections free end, when precession swelling screw in the expansion thread hole, expand groove and open, be fixed in the part pin hole.Because the expansion groove, has guaranteed the Axis Consistency after the pin expansion according to outwards opening with the concentrically ringed mode of pin, can reduce the dimension precision requirement of pin hole.When needs are changed pin,, easy to operate as long as the back-out of swelling screw just can be taken out pin like a cork from the pin hole of part.Because the position that is in contact with one another between two sections does not directly contact with part, thereby two frequent dismounting of part cooperatively interacting have been avoided, to the damage of pin hole on the part.
Description of drawings
Fig. 1 is a structure diagram of the present utility model.
Fig. 2 is the side view of Fig. 1.
Embodiment
A kind of novel locating stud, it be by about two section 1,2 constitute, closely be connected with groove fit by boss between two section 1,2, be combined into a whole pin, two sections free end be set to the expansion groove 3 the expansion thread hole, swelling screw 5 is housed in the expansion thread hole.Expansion groove 3 can be set to 2～5.About locating stud between two section 1,2 the center of cooperation place have exhaust hole 6.Exhaust port plays the effect of discharging two sections air that produce when cooperating.
Can adopt cone match between expansion thread hole and the swelling screw 5.Also can not adopt cone match.Simultaneously also have exhaust port 4 at the center of swelling screw 5.Two sections free ends are provided with the location annular boss about locating stud, can increase Location accuracy like this.
Claims (5)
1. novel locating stud, it is characterized in that: it be by about two sections (1,2) constitute, closely be connected with groove fit by boss between two sections (1,2), two sections free end is set to the expansion thread hole of band expansion groove (3), and swelling screw (5) is housed in the expansion thread hole.
2. novel locating stud according to claim 1 is characterized in that: about locating stud between two sections (1,2) center of cooperation place have exhaust hole (6).
3. novel locating stud according to claim 1 is characterized in that: have exhaust port (4) at the center of swelling screw (5).
4. novel locating stud according to claim 1 is characterized in that: adopt cone match between expansion thread hole and the swelling screw (5).
5. novel locating stud according to claim 1 is characterized in that: the expansion groove (3) of expansion thread hole periphery is set to 2～5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201298598U CN201141380Y (en) | 2007-12-29 | 2007-12-29 | Novel positioning pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201298598U CN201141380Y (en) | 2007-12-29 | 2007-12-29 | Novel positioning pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201141380Y true CN201141380Y (en) | 2008-10-29 |
Family
ID=40069092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201298598U Expired - Fee Related CN201141380Y (en) | 2007-12-29 | 2007-12-29 | Novel positioning pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201141380Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592175A (en) * | 2009-05-27 | 2009-12-02 | 甄立新 | Expansion and shrinkage type horse head pin of pumping unit |
-
2007
- 2007-12-29 CN CNU2007201298598U patent/CN201141380Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592175A (en) * | 2009-05-27 | 2009-12-02 | 甄立新 | Expansion and shrinkage type horse head pin of pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20101229 |