CN202607362U - Nipple centering device - Google Patents
Nipple centering device Download PDFInfo
- Publication number
- CN202607362U CN202607362U CN 201220254293 CN201220254293U CN202607362U CN 202607362 U CN202607362 U CN 202607362U CN 201220254293 CN201220254293 CN 201220254293 CN 201220254293 U CN201220254293 U CN 201220254293U CN 202607362 U CN202607362 U CN 202607362U
- Authority
- CN
- China
- Prior art keywords
- centering
- nipple
- axis
- pipe nipple
- head
- 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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Abstract
The utility model relates to a nipple centering device which comprises a centering rod. One end portion of the centering rod is provided with a centering head which is a cone. The outer surface diameter of the cone top of the cone-shaped centering head is smaller than the inner pore diameter of a nipple. The outer surface diameter of the cone bottom of the centering head is bigger than the inner pore diameter of the nipple. The axis of the centering rod and the axis of the centering head are collinear. The length of the centering rod is bigger than the distance between a front clamping jaw of a numeral control machine tool to a back clamping jaw. The inner side of the centering rod is hollow. The centering head is solid. The nipple centering device has the advantages that the nipple centering device enables the nipple on the other end which can not be clamped to be jacked on the centering head, and the axis of the nipple accords with the axis of a main shaft of the numeral control machine tool, so nipple upwarp, bouncing and so on can be avoided, the axis of a finished nipple pipe thread is guaranteed to accord with the axis of the nipple body, the nipple centering device is convenient to use, and the product qualified rate can be improved.
Description
Technical field
The utility model relates to a kind of pipe nipple centralising device, especially a kind ofly adds the axis device that the axis that makes short tube man-hour is centered in the numerical control machine for threading.
Background technology
Some short tube tubing and casing (pipe nipple) all need be joined in the oil field when using tubing and casing, the length of pipe nipple has the long weak point that has, and the length of the pipe nipple generally length than female adapter (box cupling) is long a lot.If the length of pipe nipple approaches the length of claw before and after the numerical control machine for threading, adding man-hour, chuck clips pipe nipple has only on machine for threading before, and back claw is pressing from both sides not, and such pipe nipple is the most difficult processing.If with the elongation of the pipe at preceding claw place a bit, pipe is easy to generate man-hour such as the line etc. that quivers adding, and is unfavorable for processing, is easy to generate waste product.The length of every pipe nipple all has tolerance according to API 5CT standard-required, if crop is processed again, the length of possible pipe is just undesirable.If directly clamping possibly situation as shown in Figure 2 will occur, pipe 6 can only clip at the preceding chuck 7 of numerical control machine for threading; Chuck 8 is pressing from both sides not and in the back; Pipe 6 is because one too heavy, and one light, is easy to produce the nose phenomenon; Even also can occur pipe 6 in claw before and after the situation of play, thereby can cause final machining screw parameter defective.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art, and a kind of pipe nipple centralising device is provided, and this centralising device is easy to operate, can realize the centering of the axis and the numerical control machine for threading axis of pipe nipple.
The technical scheme that provides according to the utility model; Said pipe nipple centralising device; Comprise centering rod, be provided with the centering head in an end end of said centering rod, said centering head is a cone; The outer surface diameter of the cone top part of this cone shape centering head is less than the endoporus aperture of pipe nipple, and the outer surface diameter of centering nose cone bottom is greater than the endoporus aperture of pipe nipple.
The axis of the axis of said centering rod and centering head point-blank.
The length of said centering rod greater than Digit Control Machine Tool before claw and the back distance between the claw.
The inside of said centering rod is hollow-core construction.
Said centering head is a solid construction.
The technique effect of the utility model is: the utility model can make the other end short tube that can't clip; Withstand on the centering head of this device; Make the axis of short tube consistent, can prevent no-go nipple nose, play etc., guarantee that the pipe nipple pipe thread axis that processes is consistent with the axis of pipe nipple body with the axis of spindle of numerical control lathe; Easy to use, can improve product percent of pass.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the clamping figure in the pipe nipple process in the prior art.
Fig. 3 is the user mode figure of the utility model.
The specific embodiment
Below in conjunction with concrete accompanying drawing the utility model is described further.
Like Fig. 1, shown in Figure 3: the pipe nipple centralising device comprises centering rod 1, centering 2, pipe nipple 3 etc.
As shown in Figure 1; The utility model comprises centering rod 1, and welding centering 2 in an end end of said centering rod 1, and said centering 2 is a cone; The outer surface diameter of the cone top part of this cone shape centering 2 is less than the endoporus aperture of pipe nipple 3; The outer surface diameter of centering 2 awl bottoms is greater than the endoporus aperture of pipe nipple 3, can head in the endoporus of pipe nipple 3 with the cone top part that guarantees centering 2, to realize the centering to pipe nipple 3;
In order to guarantee the effect of centering, the axis of the axis of said centering rod 1 and centering 2 point-blank;
The length of said centering rod 1 greater than Digit Control Machine Tool before claw 4 and the back distance between the claw 5;
In order to alleviate the weight of pipe nipple centralising device, the inside of said centering rod 1 is hollow-core construction, promptly adopts the body of certain wall thickness to process;
In order to improve the rigidity of device, said centering 2 is a solid construction.
As shown in Figure 3, when occurring being shorter in length than the pipe nipple 3 of distance between preceding claw 4 and the back claw 5, can use the described centralising device of the utility model; On the back claw 5 of centralising device and pipe nipple 3 being put into Digit Control Machine Tool respectively and the preceding claw 4, let centering 2 withstand on together, the length of claw 4 before regulating corresponding pipe nipple 3 simultaneously and stretching out with pipe nipple 3; And then the preceding claw of pipe nipple 3 one ends 4 clamped; And then, want the suitable power that applies when back claw 5 clamps with 5 clampings of back claw, make centralising device try one's best the top to pipe nipple 3; Guarantee both contacts fully, make the axis of pipe nipple 3 consistent with the axis of the main shaft of lathe.Behind numerical control car machine, be typically equipped with corresponding subsidiary engine, when claw is oversize after centralising device stretches out, can be placed on the backing roll of subsidiary engine.
When using the utility model pipe nipple centralising device, can the pipe nipple pipe be set upright, centering, can reduce the waste product that body produces adding man-hour, can improve qualification rate.
The utility model can use corresponding centralising device body and centering head according to the hole size of Digit Control Machine Tool chuck.
Claims (5)
1. pipe nipple centralising device; It is characterized in that: comprise centering rod (1); End end at said centering rod (1) is provided with centering head (2); Said centering head (2) is a cone, and the outer surface diameter of the cone top part of this cone shape centering head (2) is less than the endoporus aperture of pipe nipple (3), and the outer surface diameter of centering head (2) awl bottom is greater than the endoporus aperture of pipe nipple (3).
2. pipe nipple centralising device as claimed in claim 1 is characterized in that: the axis of the axis of said centering rod (1) and centering head (2) point-blank.
3. pipe nipple centralising device as claimed in claim 1 is characterized in that: the length of said centering rod (1) greater than Digit Control Machine Tool before distance between claw (4) and back claw (5).
4. pipe nipple centralising device as claimed in claim 1 is characterized in that: the inside of said centering rod (1) is hollow-core construction.
5. pipe nipple centralising device as claimed in claim 1 is characterized in that: said centering head (2) is a solid construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254293 CN202607362U (en) | 2012-05-31 | 2012-05-31 | Nipple centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254293 CN202607362U (en) | 2012-05-31 | 2012-05-31 | Nipple centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202607362U true CN202607362U (en) | 2012-12-19 |
Family
ID=47341094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254293 Expired - Fee Related CN202607362U (en) | 2012-05-31 | 2012-05-31 | Nipple centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202607362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141756A (en) * | 2016-07-29 | 2016-11-23 | 衡阳鸿菱石油管材有限责任公司 | A kind of forcer device for the processing of petroleum pipeline adnexa pipe nipple |
-
2012
- 2012-05-31 CN CN 201220254293 patent/CN202607362U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141756A (en) * | 2016-07-29 | 2016-11-23 | 衡阳鸿菱石油管材有限责任公司 | A kind of forcer device for the processing of petroleum pipeline adnexa pipe nipple |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140922 Granted publication date: 20121219 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150322 Granted publication date: 20121219 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20180531 |