CN103481005B - Alignment assisting mechanism for welding radial stud of pipeline - Google Patents
Alignment assisting mechanism for welding radial stud of pipeline Download PDFInfo
- Publication number
- CN103481005B CN103481005B CN201310366626.XA CN201310366626A CN103481005B CN 103481005 B CN103481005 B CN 103481005B CN 201310366626 A CN201310366626 A CN 201310366626A CN 103481005 B CN103481005 B CN 103481005B
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- screw
- ball
- clamping plate
- side clamping
- handed ball
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Classifications
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- 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
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention discloses an alignment assisting mechanism for welding a radial stud of a pipeline. The conventional stud welding can hardly guarantee the radial direction of a stud alignment pipeline. Two welding sleeves are arranged in welding sleeve mounting holes corresponding to a positioning block respectively; two guide rods are in threaded connection with the two ends of a guide rod mounting hole of the positioning block respectively; two lateral clamping plates are symmetrically sleeved on the corresponding guide rods; one ends of a left-handed ball screw and a right-handed ball screw penetrate ball screw mounting holes of the corresponding lateral clamping plates respectively, a rolling bearing is sleeved on each of the ends respectively, and the heads are fixed to the two ends of a lead screw connecting sleeve respectively; the two rolling bearings are arranged in bearing mounting holes corresponding to the positioning block respectively; the middle part of the left-handed ball screw is in threaded connection with a left-handed ball nut; the middle part of the right-handed ball screw is in threaded connection with a right-handed ball nut; the left-handed ball nut and the right-handed ball nut are fixedly connected with the corresponding lateral clamping plates respectively. The alignment assisting mechanism can adapt to alignment positioning of pipelines with different diameters and different pipeline parts.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of centering auxiliary body, be specifically related to a kind of pipeline radial bolts welding centering auxiliary body.
Background technology
According to domestic and international statistics, the oil of about 41%, the process units equipment breakdown of chemical industry equicontinuity manufacturing enterprise are caused by corrosion.For the reason of technology and economy, there is corrosion and be inevitable in process units equipment and pipeline, key how can monitor its etch state in time and eliminate accident potential.Particularly under processing crude oil in poor quality or the changeable trend of material composition, how to grasp corrosion variation tendency and the rule of process units equipment and pipeline in time, and take anti-corrosion measure in advance, be the Important Project technical problem that domestic and international enterprise is badly in need of solving, can be related to process units stable, long-time, fully loaded and high-quality operation.
Along with the raising of IT application in enterprises degree, the operation total state Monitoring Data of petroleum chemical enterprise is widely used in accident forecast, fault alarm, this makes on-line real time monitoring equipment must be arranged on all pipeline key positions without dead angle, becomes the necessary means of process control.Corrosion monitor online at present must rely on the radial weld bolt of pipeline to complete field conduct.But the quality of traditional stud weld often relies on the operation handicraft of master worker, be difficult to the radial direction ensureing stud alignment pipeline; Also be difficult to guarantee when welding multiple bolt aligned with each other and parallel simultaneously.The pipe diameter series specified due to China's GB standard is again various, and current existing radial alignment mechanism cannot realize the adjustable function of diameter.And the position occurred frequently of corrosive pipeline concentrates on threeway, elbow, the more first-class special pipelines of size, the radial location of bolt is more difficult thus, cannot meet field conduct requirement by artificial visually examine.Therefore, need badly and a kind ofly can be applicable to various pipe diameter and also can make the multi-functional welding auxiliary body of radial location to threeway, elbow, the first-class special pipeline of size.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of pipeline radial bolts to weld centering auxiliary body, to guarantee accurately installing smoothly of on-line real time monitoring equipment.
The present invention includes welding location accessory part, auxiliary centering assembly and active centering assembly.
Described welding location accessory part comprises locating piece and welded sleeve.The middle part of described locating piece offers two welded sleeve installing holes along vertical end face direction, and an end offers guide post installing hole along vertical side direction, and the other end end face is symmetrically arranged with two bearing blocks; Each bearing block offers a bearing mounting hole, the axis of bearing mounting hole and the axis being parallel of guide post installing hole are arranged, and guide post installing hole inwall has attacked screw thread; Two welded sleeves are separately positioned in corresponding welded sleeve installing hole.
Described auxiliary centering assembly comprises guide post and side clamping plate.One end car of described guide post has screw thread, and two guide posts are separately positioned on the two ends of the guide post installing hole of locating piece, and are all threaded with guide post installing hole.One end of described side clamping plate offers side clamping plate sliding eye, and the other end offers ball-screw installing hole, the axial line of side clamping plate sliding eye and the coplanar setting of axial line of ball-screw installing hole; The hole wall outer place that side clamping plate are positioned at ball-screw installing hole is provided with the mount pad of along the circumferential direction uniform multiple arcs; Two side clamping plate are respectively by respective side clamping plate sliding eye kink on the guide post of correspondence, and two side clamping plate are symmetricly set on the both sides of locating piece.
An active centering assembly comprises screw mandrel branch sleeve, left-handed ball-screw and left-handed ball nut, and another active centering assembly comprises screw mandrel branch sleeve, dextrorotation ball-screw and dextrorotation ball nut.Left-handed ball-screw and dextrorotation ball-screw are symmetricly set on the both sides of locating piece, the ball-screw installing hole that one end is each passed through respective side clamping plate is arranged, and all cover has a rolling bearing, head stretches into the two ends inwall of screw mandrel branch sleeve respectively, and is fixed by fluting cone end dog screw and screw mandrel branch sleeve; A sidewall of each rolling bearing is fitted with the shaft shoulder of corresponding left-handed ball-screw or dextrorotation ball-screw, and another sidewall is fitted with the sidewall of the circlip for shaft be arranged on corresponding left-handed ball-screw or dextrorotation ball-screw; Two rolling bearings are separately positioned in bearing mounting hole corresponding to locating piece.The middle part of left-handed ball-screw is threaded with left-handed ball nut, the middle part of dextrorotation ball-screw is threaded with dextrorotation ball nut, and left-handed ball nut and dextrorotation ball nut are all fixedly connected with multiple mount pads of respective side clamping plate by side clamping plate fastening bolt; The other end end face of left-handed ball-screw and dextrorotation ball-screw is all fixedly installed leading screw catch.
Beneficial effect of the present invention:
The present invention, towards the pipeline of national Specification, can adapt to the centering location at different pipe diameter and different pipeline position, have good versatility and the universality to the particular surroundings such as high temperature, humidity.For the pipe diameter series of national Specification, the present invention is applicable to little outside diameter schedule pipe diameter 45 ~ 530 millimeters, large outside diameter schedule pipe diameter 48 ~ 457 millimeters, i.e. nominal diameter 40 ~ 450 millimeters.For different pipeline positions, the present invention is applicable to the positions such as straight tube, threeway, concentric reducer, elbow, and under meeting different-diameter, the bolt welding at these positions is located.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of side clamping plate in the present invention;
Fig. 4-1 is the bolt welding position schematic diagram of straight tee (ST.TEE) pipeline;
Fig. 4-2 is the bolt welding position schematic diagram of skew T pipeline;
Fig. 4-3 is the bolt welding position schematic diagram of elbow pipeline;
The bolt welding position schematic diagram in head tube road sized by Fig. 4-4.
In figure: 1, locating piece, 2, welded sleeve, 3, guide post, 4, side clamping plate, 5, screw mandrel branch sleeve, 6, left-handed ball-screw, 7, left-handed ball nut, 8, dextrorotation ball-screw, 9, dextrorotation ball nut, 10, rolling bearing, 11, fluting cone end dog screw, 12, circlip for shaft, 13, side clamping plate fastening bolt, 14, leading screw catch.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As illustrated in fig. 1 and 2, a kind of pipeline radial bolts welding centering auxiliary body comprises welding location accessory part, auxiliary centering assembly and active centering assembly.
Welding location accessory part comprises locating piece 1 and welded sleeve 2.The middle part of locating piece 1 offers two welded sleeve installing holes along vertical end face direction, and an end offers guide post installing hole along vertical side direction, and the other end end face is symmetrically arranged with two bearing blocks; Each bearing block offers a bearing mounting hole, the axis of bearing mounting hole and the axis being parallel of guide post installing hole are arranged, and guide post installing hole inwall has attacked screw thread; Two welded sleeves 2 are separately positioned in corresponding welded sleeve installing hole.
As shown in figs. 1 and 3, auxiliary centering assembly comprises guide post 3 and side clamping plate 4.One end car of guide post 3 has screw thread, and two guide posts 3 are separately positioned on the two ends of the guide post installing hole of locating piece, and are all threaded with guide post installing hole.One end of side clamping plate 4 offers side clamping plate sliding eye 4-1, and the other end offers ball-screw installing hole 4-2, the axial line of side clamping plate sliding eye 4-1 and the coplanar setting of axial line of ball-screw installing hole 4-2; The hole wall outer place that side clamping plate 4 are positioned at ball-screw installing hole 4-2 is provided with the mount pad 4-3 of three along the circumferential direction uniform arcs; Two side clamping plate 4 are respectively by respective side clamping plate sliding eye 4-1 kink on the guide post 3 of correspondence, and two side clamping plate 4 are symmetricly set on the both sides of locating piece 1.
As illustrated in fig. 1 and 2, an active centering assembly comprises screw mandrel branch sleeve 5, left-handed ball-screw 6 and left-handed ball nut 7, and another active centering assembly comprises screw mandrel branch sleeve 5, dextrorotation ball-screw 8 and dextrorotation ball nut 9.Left-handed ball-screw 6 and dextrorotation ball-screw 8 are symmetricly set on the both sides of locating piece 1, the ball-screw installing hole 4-2 that one end is each passed through respective side clamping plate is arranged, and all cover has a rolling bearing 10, head stretches into the two ends inwall of screw mandrel branch sleeve 5 respectively, and is fixed with screw mandrel branch sleeve 5 by fluting cone end dog screw 11; A sidewall of each rolling bearing 10 is fitted with the shaft shoulder of corresponding left-handed ball-screw 6 or dextrorotation ball-screw 8, and another sidewall is fitted with the sidewall of the circlip for shaft 12 be arranged on corresponding left-handed ball-screw 6 or dextrorotation ball-screw 8; Two rolling bearings 10 are separately positioned in the bearing mounting hole of locating piece 1 correspondence.The middle part of left-handed ball-screw 6 is threaded with left-handed ball nut 7, the middle part of dextrorotation ball-screw 8 is threaded with dextrorotation ball nut 9, and left-handed ball nut 7 and dextrorotation ball nut 9 are all fixedly connected with three mount pad 4-3 of respective side clamping plate by side clamping plate fastening bolt 13; The other end end face of left-handed ball-screw 6 and dextrorotation ball-screw 8 is all fixedly installed leading screw catch 14.
Normal straight tube welding centering.Select the welded sleeve 2 in suitable aperture according to the diameter of weld bolt before welding job.Locating piece 1 is adjacent to straight tube outer wall, rotate left-handed ball-screw 6, dextrorotation ball-screw 8 is driven to rotate through screw mandrel branch sleeve 5, left-handed ball nut 7 and dextrorotation ball nut 9 is made to drive corresponding side clamping plate 4 symmetry to move to centre respectively, until two side clamping plate 4 clamp straight tube outer wall, now the central axis of welded sleeve 2 also intersects straight tube center line, completes pipeline radial alignment.
Three-way welding centering is as shown in Fig. 4-1 and 4-2.Conventional branch pipe tee connection has straight tee (ST.TEE) and skew T two kinds, and its welding position is all A position.Select the welded sleeve 2 in suitable aperture according to the diameter of weld bolt before welding job.Locating piece 1 is adjacent to A position, rotate left-handed ball-screw 6, dextrorotation ball-screw 8 is driven to rotate through screw mandrel branch sleeve 5, left-handed ball nut 7 and dextrorotation ball nut 9 is made to drive corresponding side clamping plate 4 symmetry to move to centre respectively, until two side clamping plate 4 clamp threeway outer wall, now the central axis of welded sleeve 2 also intersects threeway center line, completes pipeline radial alignment.
Elbow welding centering is as shown in Fig. 4-3.General middle part overleaf, elbow welding position, i.e. A position in Fig. 4-3.Select the welded sleeve 2 in suitable aperture according to the diameter of weld bolt before welding job.By the center of two welded sleeves 2 on locating piece 1 just to elbow A position, be adjacent to locating piece 1 and elbow, now rotate left-handed ball-screw 6 and dextrorotation ball-screw 8 makes two side clamping plate 4 clamp elbow both sides, welding gun is stretched into welded sleeve and completes bolt welding.
Concentric reducer welding centering is as shown in Fig. 4-4.Concentric reducer welding position generally at frustum near little head part, i.e. A position in Fig. 4-4.Select the welded sleeve 2 in suitable aperture according to the diameter of weld bolt before welding job.Pull down guide post 3, side clamping plate 4 and locating piece 1 can be rotated around left-handed ball-screw 6 or dextrorotation ball-screw 8.Turnover side clamping plate 4, then left-handed ball-screw 6 is rotated, dextrorotation ball-screw 8 is driven to rotate through screw mandrel branch sleeve 5, left-handed ball nut 7 and dextrorotation ball nut 9 is made to drive corresponding side clamping plate 4 to clamp the pipeline outer wall of pipe with small pipe diameter respectively, upset locating piece 1 makes it be close to concentric reducer frustum, completes pipeline radial alignment.
Claims (1)
1. a pipeline radial bolts welding centering auxiliary body, comprises welding location accessory part, auxiliary centering assembly and active centering assembly, it is characterized in that:
Described welding location accessory part comprises locating piece and welded sleeve; The middle part of described locating piece offers two welded sleeve installing holes along vertical end face direction, and an end offers guide post installing hole along vertical side direction, and the other end end face is symmetrically arranged with two bearing blocks; Each bearing block offers a bearing mounting hole, the axis of bearing mounting hole and the axis being parallel of guide post installing hole are arranged, and guide post installing hole inwall has attacked screw thread; Two welded sleeves are separately positioned in corresponding welded sleeve installing hole;
Described auxiliary centering assembly comprises guide post and side clamping plate; One end car of described guide post has screw thread, and two guide posts are separately positioned on the two ends of the guide post installing hole of locating piece, and are all threaded with guide post installing hole; One end of described side clamping plate offers side clamping plate sliding eye, and the other end offers ball-screw installing hole, the axial line of side clamping plate sliding eye and the coplanar setting of axial line of ball-screw installing hole; The hole wall outer place that side clamping plate are positioned at ball-screw installing hole is provided with the mount pad of along the circumferential direction uniform multiple arcs; Two side clamping plate are respectively by respective side clamping plate sliding eye kink on the guide post of correspondence, and two side clamping plate are symmetricly set on the both sides of locating piece;
An active centering assembly comprises screw mandrel branch sleeve, left-handed ball-screw and left-handed ball nut, and another active centering assembly comprises screw mandrel branch sleeve, dextrorotation ball-screw and dextrorotation ball nut; Left-handed ball-screw and dextrorotation ball-screw are symmetricly set on the both sides of locating piece, the ball-screw installing hole that one end is each passed through respective side clamping plate is arranged, and all cover has a rolling bearing, head stretches into the two ends inwall of screw mandrel branch sleeve respectively, and is fixed by fluting cone end dog screw and screw mandrel branch sleeve; A sidewall of each rolling bearing is fitted with the shaft shoulder of corresponding left-handed ball-screw or dextrorotation ball-screw, and another sidewall is fitted with the sidewall of the circlip for shaft be arranged on corresponding left-handed ball-screw or dextrorotation ball-screw; Two rolling bearings are separately positioned in bearing mounting hole corresponding to locating piece; The middle part of left-handed ball-screw is threaded with left-handed ball nut, the middle part of dextrorotation ball-screw is threaded with dextrorotation ball nut, and left-handed ball nut and dextrorotation ball nut are all fixedly connected with multiple mount pads of respective side clamping plate by side clamping plate fastening bolt; The other end end face of left-handed ball-screw and dextrorotation ball-screw is all fixedly installed leading screw catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366626.XA CN103481005B (en) | 2013-08-21 | 2013-08-21 | Alignment assisting mechanism for welding radial stud of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366626.XA CN103481005B (en) | 2013-08-21 | 2013-08-21 | Alignment assisting mechanism for welding radial stud of pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103481005A CN103481005A (en) | 2014-01-01 |
| CN103481005B true CN103481005B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310366626.XA Expired - Fee Related CN103481005B (en) | 2013-08-21 | 2013-08-21 | Alignment assisting mechanism for welding radial stud of pipeline |
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| CN (1) | CN103481005B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438402A (en) * | 2015-11-25 | 2016-03-30 | 武昌船舶重工集团有限公司 | Installation method of large stern roller bearing blocks of anchor handling tug supply (AHTS) vessel for ocean engineering platform |
| CN112077523B (en) * | 2020-09-20 | 2022-06-21 | 武汉华特电气设备有限公司 | Transformer header welding angle positioning tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243868A (en) * | 1979-05-02 | 1981-01-06 | General Atomic Company | Orbital arc-welding apparatus of split construction |
| US5310982A (en) * | 1993-04-26 | 1994-05-10 | Hobart Brothers Company | T-joint welding fixture |
| CN102689081A (en) * | 2011-03-24 | 2012-09-26 | 巴布日立工业株式会社 | Tig welding device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59232667A (en) * | 1983-06-16 | 1984-12-27 | Kusakabe Kikai Kk | Melt cutting and welding device for circumferential wall of pipe |
| JPH10193112A (en) * | 1996-12-27 | 1998-07-28 | Ishikawajima Harima Heavy Ind Co Ltd | Stubbed tube automatic welding machine |
| JP5851694B2 (en) * | 2011-01-07 | 2016-02-03 | 三菱重工業株式会社 | Cylindrical weld forming method and welding apparatus |
| US20120299288A1 (en) * | 2011-05-24 | 2012-11-29 | Electric Power Research Institute, Inc. | FUNCTIONALLY GRADED COMPOSITIONAL CONTROL METHODS TO ELIMINATE DISSIMILAR METAL WELDS (DMWs) DURING MANUFACTURE OF INTEGRAL HEADERS |
-
2013
- 2013-08-21 CN CN201310366626.XA patent/CN103481005B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243868A (en) * | 1979-05-02 | 1981-01-06 | General Atomic Company | Orbital arc-welding apparatus of split construction |
| US5310982A (en) * | 1993-04-26 | 1994-05-10 | Hobart Brothers Company | T-joint welding fixture |
| CN102689081A (en) * | 2011-03-24 | 2012-09-26 | 巴布日立工业株式会社 | Tig welding device |
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| Publication number | Publication date |
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| CN103481005A (en) | 2014-01-01 |
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