CN211728067U - Screw hole centering clamp for pipeline welding flange - Google Patents
Screw hole centering clamp for pipeline welding flange Download PDFInfo
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- CN211728067U CN211728067U CN201922376002.1U CN201922376002U CN211728067U CN 211728067 U CN211728067 U CN 211728067U CN 201922376002 U CN201922376002 U CN 201922376002U CN 211728067 U CN211728067 U CN 211728067U
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- centering
- sleeve
- locking
- screw hole
- flange
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Abstract
The utility model discloses a screw hole centering fixture for a pipeline welding flange, which comprises a flange screw hole positioning sleeve and a centering sleeve rod; the flange screw hole positioning sleeve comprises a horizontal positioning plate and a locking sleeve, the horizontal positioning plate is arranged along the axial direction of the locking sleeve, the bottom of the horizontal positioning plate and the bottom of the locking sleeve are positioned on the same plane, the top of the locking sleeve is provided with a guide part, a locking hole is arranged along the radial direction of the locking sleeve, and the locking hole is matched with a locking bolt for use; a centering sleeve rod is arranged inside the flange screw hole positioning sleeve, and the outer diameter of the centering sleeve rod is 0.05-0.08 mm smaller than the inner diameter of the locking sleeve; the centering sleeve rod comprises a circular shaft extension part and a conical shaft penetrating part which are integrally formed. The utility model provides a centering is effectual, is applicable to the accurate complex screw centering anchor clamps for pipeline welding flange in different flange apertures.
Description
Technical Field
The utility model relates to a pipeline is screw centering anchor clamps for welded flange.
Background
When two large-scale flanges pass through screw interconnect in the pipeline welding process, the centering between the screw on the flange adopts round pin axle centering mode more, because there is certain clearance between round pin axle and the flange screw, the unable packing of flange screw is concentric, causes some and flange screw to need the condition that the decentraction appears easily in the installation process of precision fit's bolt, increases the degree of difficulty of installation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that exists among the prior art, provide a centering is effectual, is applicable to the screw centering anchor clamps for the precision fit pipeline welding flange in different flange apertures.
In order to achieve the purpose, the technical scheme of the utility model is to design a screw hole centering clamp for a pipeline welding flange, which comprises a flange screw hole positioning sleeve and a centering sleeve rod; the flange screw hole positioning sleeve comprises a horizontal positioning plate and a locking sleeve, the horizontal positioning plate is arranged along the axial direction of the locking sleeve, the bottom of the horizontal positioning plate and the bottom of the locking sleeve are positioned on the same plane, the top of the locking sleeve is provided with a guide part, a locking hole is arranged along the radial direction of the locking sleeve, and the locking hole is matched with a locking bolt for use; a centering sleeve rod is arranged inside the flange screw hole positioning sleeve, and the outer diameter of the centering sleeve rod is 0.05-0.08 mm smaller than the inner diameter of the locking sleeve; the centering sleeve rod comprises a circular shaft extension part and a conical shaft penetrating part which are integrally formed.
According to the preferable technical scheme, the outer surface of the tail end of the round shaft extension part of the centering sleeve rod is provided with a threaded connection end, the outer diameter of the threaded connection end is smaller than the outer diameter of the round shaft extension part, the threaded connection end is provided with an extension rod, the inner surface of the extension rod is provided with threads matched with the threaded connection section, and the outer diameter of the extension rod is consistent with the outer diameter of the round shaft extension part. Because the thickness of pipeline welding flange is different with the distance between two flanges, consequently the length of centering sleeve is different to can increase length as required.
As preferred technical scheme, the threaded connection end of centering loop bar circle axle extension is equipped with the locating part. The locating part effectively prevents the locking sleeve from separating from the centering sleeve rod.
As the preferred technical scheme, the flange screw hole positioning plates are 2 and form an included angle of 180 degrees through the axial center line of the locking sleeve.
As a preferred technical scheme, the centering sleeve rod comprises a first centering sleeve rod and a second centering sleeve rod, the length of the first centering sleeve rod is 90mm, and the outer diameter of the first centering sleeve rod is 50 mm; the length of the second centering sleeve is larger than 200mm, and the outer diameter is 22 mm. The centering sleeve rods are different in model, and a first centering sleeve or a second centering sleeve rod is selected according to the size of a flange screw hole, or the second centering sleeve rod is placed into the first centering sleeve rod to be matched with the first centering sleeve rod for use.
The utility model has the advantages and the beneficial effects that: the utility model discloses a locking screw's mode compresses tightly centering loop bar and two welding flange screws and realizes the centering, easy operation, frock simple structure.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
FIG. 3 is a schematic view of a centering screw structure;
in the figure: 1. the flange screw hole positioning sleeve comprises a horizontal positioning plate; 11. a horizontal positioning plate; 12. locking the sleeve; 13. a guide portion; 14. a locking hole; 15. locking the bolt;
2. centering the loop bar; 21. a circular shaft extension; 22. a conical shaft penetration part; 23. a threaded connection end; 24. a limiting member; 25. a first centering loop bar; 26. and a second centering loop bar.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
A screw hole centering clamp for a pipeline welding flange comprises a flange screw hole positioning sleeve and a centering sleeve rod; the flange screw hole positioning sleeve comprises a horizontal positioning plate 11 and a locking sleeve 12, the horizontal positioning plate is arranged along the axial direction of the locking sleeve, the bottom of the horizontal positioning plate and the bottom of the locking sleeve are positioned on the same plane, the top of the locking sleeve is provided with a guide part 13, a locking hole 14 is arranged along the radial direction of the locking sleeve, and the locking hole is matched with a locking bolt 15 for use; a centering sleeve rod is arranged inside the flange screw hole positioning sleeve, and the outer diameter of the centering sleeve rod is 0.05-0.08 mm smaller than the inner diameter of the locking sleeve; the centering sleeve rod comprises a circular shaft extension part 21 and a conical shaft penetrating part 22 which are integrally formed.
The outer surface of the tail end of the circular shaft extension part of the centering sleeve rod is provided with a threaded connection end 23, the outer diameter of the threaded connection end is smaller than the outer diameter of the circular shaft extension part, the threaded connection end is provided with an extension rod, the inner surface of the extension rod is provided with threads matched with the threaded connection section, and the outer diameter of the extension rod is consistent with the outer diameter of the circular shaft extension part.
A limit piece 24 is arranged at the threaded connection end of the extension part of the circular shaft of the centering sleeve rod.
The flange screw hole positioning plates are 2 and form an included angle of 180 degrees through the axial central line of the locking sleeve.
The outer diameter of the extension centering sleeve rod is 22mm, and the outer diameter of the inner taper sleeve is 50 mm.
The centering sleeve rods comprise a first centering sleeve rod 25 and a second centering sleeve rod 26, the length of the first centering sleeve rod is 90mm, and the outer diameter of the first centering sleeve rod is 50 mm; the length of the second centering sleeve is larger than 200mm, and the outer diameter is 22 mm.
The utility model discloses an application method, with flange screw positioning sleeve's horizontal location board afterbody near on the flange screw of needs centering, align locking sleeve's round hole and flange screw, select suitable centering loop bar according to flange screw size, extend centering loop bar to the bottom along locking sleeve's guide part, pass two flanges that need the centering with the centering loop bar, with the relative position of locking bolt through being located locking sleeve's locking hole fixed locking sleeve and centering loop bar. Be equipped with a plurality of screws on the flange, use the utility model discloses the screw centering of two flanges just can be realized to 2 screws of frock centering.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A screw hole centering clamp for a pipeline welding flange is characterized by comprising a flange screw hole positioning sleeve and a centering sleeve rod; the screw hole positioning sleeve for the flange comprises a horizontal positioning plate and a locking sleeve, the horizontal positioning plate is arranged along the axial direction of the locking sleeve, the bottom of the horizontal positioning plate and the bottom of the locking sleeve are positioned on the same plane, the top of the locking sleeve is provided with a guide part, a locking hole is arranged along the radial direction of the locking sleeve, and the locking hole is matched with a locking bolt for use; a centering sleeve rod is arranged inside the flange screw hole positioning sleeve, and the outer diameter of the centering sleeve rod is 0.05-0.08 mm smaller than the inner diameter of the locking sleeve; the centering sleeve rod comprises a circular shaft extension part and a conical shaft penetrating part which are integrally formed.
2. The screw hole centering fixture for the welding flange of the pipeline as claimed in claim 1, wherein said centering sleeve rod has a screw thread connection end at the outer surface of the tail end of the round shaft extension part, said screw thread connection end has an outer diameter smaller than the outer diameter of the round shaft extension part, said screw thread connection end has an extension rod, said extension rod has an inner surface provided with a screw thread adapted to the screw thread connection end, and said extension rod has an outer diameter identical to the outer diameter of the round shaft extension part.
3. The screw hole centering fixture for the pipe welding flange as claimed in claim 2, wherein the threaded end of the centering sleeve rod circular shaft extension is provided with a stopper.
4. The screw hole centering fixture for the pipeline welding flange as claimed in claim 3, wherein the flange screw hole positioning plate is 2 and has an included angle of 180 ° with respect to the axial centerline of the locking bushing.
5. The screw hole centering fixture for the pipeline welding flange as claimed in claim 4, wherein the centering sleeve rod has an outer diameter of 22mm and the inner taper sleeve has an outer diameter of 50 mm.
6. The screw hole centering fixture for the pipeline welding flange as claimed in claim 5, wherein the centering sleeve rod comprises a first centering sleeve rod and a second centering sleeve rod, the length of the first centering sleeve rod is 90mm, and the outer diameter of the first centering sleeve rod is 50 mm; the length of the second centering sleeve is larger than 200mm, and the outer diameter is 22 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922376002.1U CN211728067U (en) | 2019-12-26 | 2019-12-26 | Screw hole centering clamp for pipeline welding flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922376002.1U CN211728067U (en) | 2019-12-26 | 2019-12-26 | Screw hole centering clamp for pipeline welding flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211728067U true CN211728067U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922376002.1U Active CN211728067U (en) | 2019-12-26 | 2019-12-26 | Screw hole centering clamp for pipeline welding flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211728067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916990A (en) * | 2021-01-26 | 2021-06-08 | 中广核核电运营有限公司 | Replacement method of nuclear grade branch pipe seat |
-
2019
- 2019-12-26 CN CN201922376002.1U patent/CN211728067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916990A (en) * | 2021-01-26 | 2021-06-08 | 中广核核电运营有限公司 | Replacement method of nuclear grade branch pipe seat |
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