CN104057234A - Centering device for pipe fitting welding - Google Patents
Centering device for pipe fitting welding Download PDFInfo
- Publication number
- CN104057234A CN104057234A CN201410306538.5A CN201410306538A CN104057234A CN 104057234 A CN104057234 A CN 104057234A CN 201410306538 A CN201410306538 A CN 201410306538A CN 104057234 A CN104057234 A CN 104057234A
- Authority
- CN
- China
- Prior art keywords
- auxiliary body
- pipe fitting
- redundant piece
- mating surface
- guide rod
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/10—Pipe-lines
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a centering device for pipe fitting welding. a left fitting surface and a right fitting surface, perpendicular to each other, are respectively arranged on the outer circumferences of the two ends of an auxiliary body; the left fitting surface or the right fitting surface is a pair of parallel surfaces and is at the equal distance from the axis of the auxiliary body, and a guide slot which runs through along the axial direction is arranged in the center line of the left fitting surface and the right fitting surface; a partial cylindrical body which is matched with a pipe fitting inner hole and the right fitting surface of the auxiliary body is arranged on one end of a right auxiliary block, and a right auxiliary block guide rod capable of moving in the guide slot of the auxiliary body is arranged on the other end of the right auxiliary block, and a detaching handle is arranged on the right auxiliary block guide rod; a partial cylindrical body which is matched with a flange inner hole and the left fitting surface of the auxiliary body is arranged on one end of a left auxiliary block, and a left auxiliary block guide rod capable of moving in the guide slot of the auxiliary body is arranged on the other end of the left auxiliary block. The centering device for pipe fitting welding has the beneficial effects that with the centering device for pipe fitting welding, a pipe and a flange are accurately centered during welding, especially when the inner diameter of the pipe is greater than the inner diameter of the flange, the pipe and the flange are also matched with each other, a uniform welding seam is obtained through precise centering welding, the centering device also can be detached easily, the pipe fitting welding is enabled to be more firm and reliable, the pressure bearing capacity of the pipeline is also improved, and accordingly, the operating stability of a diesel generating unit is guaranteed.
Description
Technical field
The present invention relates to a kind of pipe fitting welding centralising device, relate in particular to the centralising device of a kind of pipe fitting and flange welding, belong to pipe fitting welding technical field.
Background technology
In diesel generating set Design and manufacturing process, its system pipeline welding is extremely important.Be mainly reflected in the welding of tube and tube, pipe and flange welding.The welding of general pipe fitting substantially relies on the experience of welding personnel to carry out the welding of naked eyes centering or takes corresponding centralising device for different situations.Wherein pipe is particularly outstanding with the welding of flange, when identical with pipe fitting internal diameter for flange, is generally welding after flange and the middle cylinder that inserts same inner diameter of pipe fitting, can ensure the good centering of pipe fitting; While being greater than pipe fitting internal diameter for flange internal diameter, generally, at the middle stairstepping cylinder centralising device that inserts of flange and pipe, after welding, device is taken out from flange end, also can realize good centering; While being less than pipe fitting internal diameter for flange internal diameter, when welding, centering is unreliable, and postwelding centralising device cannot take out, and can only adopt outside centering means to carry out centering welding.Due to accurate centering, easily cause flange-interface end face and pipe connector end face appearance skew in welding process, make to weld rear throat depth inhomogeneous, can cause weld strength inhomogeneous, pipeline internal pressure resistance easily produces sudden change, in use occurs tearing, touch disconnected phenomenon, the pressure that weld seam can be born reduces greatly, also can cause pipeline useful life to shorten greatly, has a strong impact on the utilization stability of diesel generating set.
Summary of the invention
When the object of this invention is to provide one and can making pipe fitting and flange welding, centering is accurate, especially pipe fitting internal diameter is greater than the cooperation of flange internal diameter, can make pipe fitting even weld, and pipe fitting welding is more firm, strengthen pipeline bearing capacity, be convenient to the pipe fitting welding centralising device of installing/dismounting.
The structure of this pipe fitting welding centralising device is, on the two ends outer circumference surface of auxiliary body, be respectively equipped with orthogonal left mating surface and right mating surface, left mating surface or right mating surface are a pair of faces that is parallel to each other equating with auxiliary body axial line distance, are provided with the guide groove connecting vertically on the center line of left mating surface and right mating surface; One end of right redundant piece is the part column matching with the right mating surface of pipe fitting endoporus and auxiliary body, and the other end is right redundant piece guide rod mobile in the guide groove of auxiliary body, and right redundant piece guide rod is provided with dismounting handle; One end of left redundant piece is the part column matching with the left mating surface of flange endoporus and auxiliary body, and the other end is left redundant piece guide rod mobile in the guide groove of auxiliary body.
The cylindrical assembly external diameter that right redundant piece and left redundant piece and auxiliary body form is more than or equal to auxiliary body external diameter, and coaxial with auxiliary body, and cylindrical assembly coordinates with flange hole and pipe fitting interporal lacuna.
Left mating surface is less than 1/2 of auxiliary body length along the length that extends axially of auxiliary body; Right mating surface is less than 1/2 of auxiliary body length along the length that extends axially of auxiliary body.
The length of the left redundant piece guide rod of the right redundant piece guide rod of described right redundant piece and left redundant piece is all more than or equal to the length of auxiliary body.The right redundant piece guide rod of right redundant piece is placed under the state in the guide groove of auxiliary body, and dismounting handle end is exposed auxiliary body.
This pipe fitting welding centralising device, comprise cylindrical auxiliary body, auxiliary body also comprises a pair of mating surface being parallel to each other that cuts vertically formation from cylinder upper surface, two mating surfaces equate with auxiliary body axial line distance, and mating surface is less than 1/2 of auxiliary body length along the axially extended length of cylinder.Left mating surface is mutually vertical with right mating surface; On center line on left mating surface and right mating surface, be provided with the guide groove connecting vertically; Also comprise left redundant piece and right redundant piece, be column, its side is made up of a plane and an arcwall face; Left redundant piece and right redundant piece are connected with guide rod, guide rod and guide groove are suitable, guide rod inserts after guide groove, and the cylindrical assembly external diameter that left redundant piece and right redundant piece form is more than or equal to auxiliary body external diameter and coaxial with auxiliary body, cylindrical assembly insert in pipe fitting and with pipe fitting matched in clearance.The length of the guide rod of the guide rod of described left redundant piece and right redundant piece is all more than or equal to the length of auxiliary body.On the guide rod of described right redundant piece, be connected with dismounting handle, under the state in guide rod is placed in guide groove, dismounting handle end is exposed auxiliary body.
The invention has the beneficial effects as follows by developing this pipe fitting welding centralising device and can make pipe accurate centering when the flange welding, especially the pipe fitting that pipe fitting internal diameter is greater than flange internal diameter coordinates with flange, precisely after centering welding, can make pipe fitting even weld, also easily centralising device is removed, make pipe fitting welding more firmly, reliably, strengthened the bearing capacity of pipeline, thereby ensured the stability of diesel generating set operation.
Brief description of the drawings
Fig. 1 is left redundant piece of the present invention and right redundant piece and auxiliary body assembling schematic diagram;
Fig. 2 is auxiliary body structural representation of the present invention;
Fig. 3 is right redundant block structure schematic diagram of the present invention;
Fig. 4 is left redundant block structure schematic diagram of the present invention;
Fig. 5 is pipe fitting welding centralising device structural representation of the present invention.
In figure: 1-right redundant piece, 2-auxiliary body, 3-left redundant piece, 4-flange, 5-pipe fitting, 6-left redundant piece guide rod, 7-right redundant piece guide rod, 8-dismounting handle, the left mating surface of 21-, the right mating surface of 22-, 23-guide groove.
Detailed description of the invention
For making the object of the invention, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme of the present invention is known intactly and described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Fig. 1 Fig. 2, Fig. 1 is that left redundant piece 3 and right redundant piece 1 are assembled schematic diagram with auxiliary body 2, on the two ends outer circumference surface of auxiliary body 2, be respectively equipped with orthogonal left mating surface 21 and right mating surface 22, left mating surface 21 or right mating surface 22 are the pair of parallel faces that equate with auxiliary body 2 axial line distance, are provided with the guide groove 23 connecting vertically on the center line of left mating surface 21 and right mating surface 22.
As shown in Fig. 3 Fig. 4, one end of right redundant piece 1 is the part column matching with the right mating surface 22 of pipe fitting 5 endoporus and auxiliary body 2, and the other end is the right redundant piece guide rod 7 in the guide groove 23 interior movements of auxiliary body 2, and right redundant piece guide rod 7 is provided with dismounting handle 8; One end of left redundant piece 3 is the part column matching with the left mating surface 21 of flange 4 endoporus and auxiliary body 2, and the other end is the left redundant piece guide rod 6 in the guide groove 23 interior movements of auxiliary body 2.
As shown in Fig. 1 Fig. 5, right redundant piece 1 and left redundant piece 3 equal auxiliary body 2 external diameters with the cylindrical assembly external diameter that auxiliary body 2 forms, and coaxial with auxiliary body 2, cylindrical assembly and flange 4 and pipe fitting 5 matched in clearance.
Left mating surface 21 is less than 1/2 of auxiliary body 2 length along the length that extends axially of auxiliary body 2; Right mating surface 22 is less than 1/2 of auxiliary body 2 length along the length that extends axially of auxiliary body 2.
The length of the right redundant piece guide rod 7 of right redundant piece 1 and the left redundant piece guide rod 6 of left redundant piece 3 is all greater than the length of auxiliary body 2.Under the state that the right redundant piece guide rod 7 of right redundant piece 1 is placed in guide groove 23, dismounting handle 8 ends expose auxiliary body 2.
As shown in Figure 2, this pipe fitting welding centralising device is in columniform auxiliary body 2 arcuate flanks, namely the two ends of outer circumference surface are respectively equipped with two relative mating surfaces, mating surface cuts left mating surface 21 and the right mating surface 22 of formation vertically from the left and right end face of cylindrical auxiliary body 2 bodies, left mating surface 21 and right mating surface 22 be 90 degree each other.Auxiliary body 2 is provided with the guide groove 23 connecting vertically on the center line of four mating surfaces.
As shown in Figure 3, right redundant piece 1 is column, and its side is that one side is plane, and another side is arcwall face, and with right redundant piece guide rod 7.Right redundant piece guide rod 7 has a dismounting handle 8 to be placed in guide groove 23 in vertical direction, is the handle using in the time of this pipe fitting welding centralising device of dismounting.The right redundant piece guide rod 7 of right redundant piece 1 inserts in the guide groove 23 of auxiliary body 2, forms end cylindrical assembly, and coaxial and diameter equals auxiliary body 2 and inserts in pipe fitting 5 endoporus this cylindrical assembly with auxiliary body 2.Described cylindrical assembly and pipe fitting 5 form matched in clearance.
By reference to the accompanying drawings 4, left redundant piece 3 is one sides for plane, the another side cuboid that is arcwall face and with left redundant piece guide rod 6, the left redundant piece guide rod 6 of two left redundant pieces 3, insert respectively in the guide groove 23 of auxiliary body 2 and form cylindrical assembly, this cylindrical assembly is coaxial and equal diameters being inserted in the endoporus of flange 4 with auxiliary body 2, and described cylindrical assembly and flange 4 form matched in clearance.
As shown in Figure 5, flange 4 internal diameters are less than pipe fitting 5 internal diameters, pipe fitting welding centralising device is made up of left redundant piece 3, auxiliary body 2, right redundant piece 1, the external diameter of the cylinder-shaped end assembly being made up of right redundant piece 1 is consistent with pipe fitting 5 internal diameters, the external diameter of the cylinder-shaped end assembly being made up of left redundant piece 3 is consistent with flange 4 internal diameters, pipe fitting 5 and flange 4 are set in to the two ends of this pipe fitting welding centralising device, realize accurate centering, weld afterwards.Take out left redundant piece 3, auxiliary body 2, right redundant piece 1 successively end from flange 4 after having welded.Guide groove 23 on auxiliary body 2 can prevent that right redundant piece 1 and left redundant piece 3 from moving radially on auxiliary body 2, by the right redundant piece guide rod 7 on left redundant piece guide rod 6 and the right redundant piece 1 of left redundant piece 3, to realize left redundant piece 3 and the location of right redundant piece 1 on auxiliary body 2, also facilitate they are taken out from flange 4 endoporus and pipe fitting 5 endoporus simultaneously.
Claims (5)
1. a pipe fitting welding centralising device, it is characterized in that: on the two ends outer circumference surface of auxiliary body (2), be respectively equipped with orthogonal left mating surface (21) and right mating surface (22), left mating surface (21) or right mating surface (22) are the pair of parallel faces equating with auxiliary body (2) axial line distance, are provided with the guide groove (23) connecting vertically on the center line of left mating surface (21) and right mating surface (22); One end of right redundant piece (1) is the part column matching with the right mating surface (22) of pipe fitting (5) endoporus and auxiliary body (2), the other end is right redundant piece guide rod (7) mobile in the guide groove of auxiliary body (2) (23), and right redundant piece guide rod (7) is provided with dismounting handle (8); One end of left redundant piece (3) is the part column matching with the left mating surface (21) of flange (4) endoporus and auxiliary body (2), and the other end is left redundant piece guide rod (6) mobile in the guide groove of auxiliary body (2) (23).
2. pipe fitting welding centralising device according to claim 1, it is characterized in that: right redundant piece (1) and left redundant piece (3) are more than or equal to auxiliary body (2) external diameter with the cylindrical assembly external diameter that auxiliary body (2) forms, and coaxial with auxiliary body (2), cylindrical assembly and flange (4) and pipe fitting (5) matched in clearance.
3. pipe fitting welding centralising device according to claim 1, is characterized in that: left mating surface (21) is less than 1/2 of auxiliary body (2) length along the length that extends axially of auxiliary body (2); Right mating surface (22) is less than 1/2 of auxiliary body (2) length along the length that extends axially of auxiliary body (2).
4. pipe fitting welding centralising device according to claim 1, is characterized in that: the length of the right redundant piece guide rod (7) of described right redundant piece (1) and the left redundant piece guide rod (6) of left redundant piece (3) is all more than or equal to the length of auxiliary body (2).
5. pipe fitting welding centralising device according to claim 1, it is characterized in that: the right redundant piece guide rod (7) of described right redundant piece (1) is placed under the state in guide groove (23), dismounting handle (8) end exposes auxiliary body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410306538.5A CN104057234B (en) | 2014-06-30 | 2014-06-30 | Pipe fitting welding centralising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410306538.5A CN104057234B (en) | 2014-06-30 | 2014-06-30 | Pipe fitting welding centralising device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104057234A true CN104057234A (en) | 2014-09-24 |
| CN104057234B CN104057234B (en) | 2015-11-11 |
Family
ID=51545321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410306538.5A Expired - Fee Related CN104057234B (en) | 2014-06-30 | 2014-06-30 | Pipe fitting welding centralising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104057234B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400776A (en) * | 2014-11-10 | 2015-03-11 | 重庆市西华机械制造有限公司 | Scribing table for engine cylinder block |
| CN112427815A (en) * | 2020-10-26 | 2021-03-02 | 南京华锻智能装备科技有限公司 | Integrated efficient laser pipe cutting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3092058A (en) * | 1960-01-08 | 1963-06-04 | James S Feeler | Pipe and flange aligner |
| US4701989A (en) * | 1986-08-01 | 1987-10-27 | Cayzer Ian S | Pipe and flange alignment tool |
| CN201244717Y (en) * | 2008-08-08 | 2009-05-27 | 河北省安装工程公司 | Concentric centering device for cylindrical vessel construction |
| CN201271790Y (en) * | 2008-05-22 | 2009-07-15 | 中建工业设备安装有限公司 | Rapid dissembling flange positioner |
| CN203900799U (en) * | 2014-06-30 | 2014-10-29 | 中国北车集团大连机车车辆有限公司 | Welding and centering device for pipe fitting |
-
2014
- 2014-06-30 CN CN201410306538.5A patent/CN104057234B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3092058A (en) * | 1960-01-08 | 1963-06-04 | James S Feeler | Pipe and flange aligner |
| US4701989A (en) * | 1986-08-01 | 1987-10-27 | Cayzer Ian S | Pipe and flange alignment tool |
| CN201271790Y (en) * | 2008-05-22 | 2009-07-15 | 中建工业设备安装有限公司 | Rapid dissembling flange positioner |
| CN201244717Y (en) * | 2008-08-08 | 2009-05-27 | 河北省安装工程公司 | Concentric centering device for cylindrical vessel construction |
| CN203900799U (en) * | 2014-06-30 | 2014-10-29 | 中国北车集团大连机车车辆有限公司 | Welding and centering device for pipe fitting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400776A (en) * | 2014-11-10 | 2015-03-11 | 重庆市西华机械制造有限公司 | Scribing table for engine cylinder block |
| CN112427815A (en) * | 2020-10-26 | 2021-03-02 | 南京华锻智能装备科技有限公司 | Integrated efficient laser pipe cutting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104057234B (en) | 2015-11-11 |
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| C10 | Entry into substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20200630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |