CN105598631A - Rhombic internal support clamp for round pipe welding - Google Patents
Rhombic internal support clamp for round pipe welding Download PDFInfo
- Publication number
- CN105598631A CN105598631A CN201610177000.8A CN201610177000A CN105598631A CN 105598631 A CN105598631 A CN 105598631A CN 201610177000 A CN201610177000 A CN 201610177000A CN 105598631 A CN105598631 A CN 105598631A
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- CN
- China
- Prior art keywords
- inner support
- main shaft
- rhombic
- supporting frame
- rhombus
- 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
- B23K37/053—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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/28—Seam welding of curved planar seams
- B23K26/282—Seam welding of curved planar seams of tube sections
-
- 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
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a rhombic internal support clamp for round pipe welding. The rhombic internal support clamp comprises at least one rhombic internal support unit, push cylinders corresponding to the rhombic internal support units one to one, two end covers, a main shaft and a plurality of pressing back-blowing modules, wherein the main shaft is arranged at the center of a round pipe, and both ends of the main shaft are respectively fixed in the centers of the two end covers; each push cylinder is fixedly arranged on the main shaft; each rhombic internal support unit comprises a positioning ring, a movable ring and at least one rhombic supporting frame; the positioning rings fixedly sleeve the main shaft; the movable rings sleeve the main shaft and can move back and forth along the main shaft along with the pushing of the corresponding push cylinders; one pair of diagonals of each rhombic supporting frame is respectively hinged to the corresponding positioning ring and the corresponding movable ring, and the other pair of diagonals of each rhombic supporting frame is respectively hinged to two supporting platforms; at least one pressing back-blowing module is fixed on each supporting platform. According to the rhombic internal support clamp, the internal protection problem for pipe welding is solved, the quality of welds is improved, and thermal deformation is relieved.
Description
Technical field
The present invention relates to welding field.
Background technology
The laser weld of tubing parts is widely used in various fields, the girth joint welding of tube and tube, and tubing is plug-inPart be welded on domestic extensive use. At present, the butt welding process of tube and tube, employing be generally outside collar assembling,Then take down outside collar, then carry out boxing welding. The feature of the welding method of the outer suspension member of tubing is first spot welding, thenDirectly welding. These welding methods, weld seam inside is without any protection, and weld seam easily subsides, and product is easily heatedDistortion, affects weldquality. Meanwhile, in the outer suspension member welding of pipe, because the outer suspension member of tubing is distributed in differentPosition, various welding protections are very inconvenient, particularly take safeguard measure from the inner back side of tubing, more inconvenient.In the girth joint welding of pipe, because girth joint lacks gas protective device and bracing or strutting arrangement, tubing weldquality is not high,Thermal deformation is large.
Summary of the invention
The object of the present invention is to provide a kind of pipe welding rhombus inner support fixture, solve tubing welding internal protectionProblem, promotes weldquality, reduces thermal deformation.
The technical scheme that realizes above-mentioned purpose is:
A kind of rhombus inner support fixture for pipe welding, comprise at least one rhombus inner support unit, with described rhombus inner supportUnit promotes one to one cylinder, is pressed on two end caps at pipe two ends, main shaft and multiple stretching back of the body blowing mouldPiece, wherein,
Described main shaft is placed in pipe center, and two ends are individually fixed in the center of two described end caps;
Described rhombus inner support unit corresponding to each described promotion cylinder next-door neighbour is fixedly arranged on described main shaft;
Each described rhombus inner support unit comprises locating ring, loose collar and at least one rhombic supporting frame,
Described locating ring is enclosed within on described main shaft regularly;
Described loose collar is enclosed within on described main shaft, along with the promotion of the described promotion cylinder of correspondence before described main shaftRear movement;
The a pair of diagonal angle of described rhombic supporting frame is articulated with respectively described locating ring and described loose collar, another biconjugate angleBe articulated with respectively two support platforms; Each described support platform is fixed stretching back of the body blowing mould piece described at least one.
According to technique scheme, the present invention is mainly used in the outer welding of suspension member of cylindrical duct and the ring of cylinder type tube and tubeWeld seam welding, is propped up/is retracted by cylinder control rhombic supporting frame, has solved tubing welding internal protection problem,Promote weldquality, reduce thermal deformation. , carry on the back on the inwall that blowing mould piece acts on outer suspension member by stretching meanwhile, canWith to the pre-clamping force in one of welding position, reduce tubing welding temperature distortion and reduce solder skip, and passing through postweldingBack blown inert gas, plays the back of the body and blows the effect of protection weld seam.
In above-mentioned pipe welding, with in rhombus inner support fixture, described stretching back of the body blowing mould piece comprises:
The mounting blocks hinged with described rhombic supporting frame;
Multiple elastic components;
Be fixed on the stretching air blowing piece on described mounting blocks surface by each described elastic component; And
Connect multiple guide positioning pins of described stretching air blowing piece and described mounting blocks. By utilizing elastic component, playThe impact that tolerance balancing effect and elimination rhombus foozle are brought. Playing guide-localization by guide positioning pin doesWith.
In above-mentioned pipe welding, with in rhombus inner support fixture, described stretching air blowing piece is made up of two half blocks, and these are two years oldBetween individual half block, connected by many back-moving springs, to offset the error between stretching Blow off module and tube wall, be close to tube wall.
In above-mentioned pipe welding, with in rhombus inner support fixture, described stretching air blowing piece surface is along the circumferencial direction of pipeHave the multiple equally spaced groove of dark 1mm, wide 1mm, with the uniformity that ensures to blow in the back side.
In above-mentioned pipe welding, with in rhombus inner support fixture, described locating ring comprises:
Be enclosed within regularly the hold-down ring on described main shaft;
The connecting ring that is enclosed within on described main shaft and joins with described hold-down ring; And
Along the circumferential direction be arranged at described connecting ring and multiple first articulated elements hinged with each described rhombic supporting frame;
Described loose collar is along the circumferential direction provided with multiple second articulated elements hinged with each described rhombic supporting frame.
Use in rhombus inner support fixture, described in each described rhombic supporting frame is articulated with by four in above-mentioned pipe weldingThe support bar composition of the first articulated elements, the second articulated elements or support platform.
In above-mentioned pipe welding, with in rhombus inner support fixture, described connecting ring is in each described the first articulated elements positionBe equipped with lateral adjustments pad with described loose collar in each described the second articulated elements position and vertically adjust pad. LogicalCross and laterally adjust pad and vertically adjust pad and suitably adjust rhombus, to ensure that being adjacent to module is close to barrel surface.
Use in rhombus inner support fixture the described rhombic supporting in each described rhombus inner support unit in above-mentioned pipe weldingThe quantity of frame is identical and corresponding one by one, and the described rhombic supporting chord position of each mutual correspondence is in same plane.
In above-mentioned pipe welding, with in rhombus inner support fixture, each described stretching back of the body blowing mould piece is by an outside electricityMagnet valve is controlled separately. Can save a large amount of inert gases, effectively the outer suspension member of protection welding.
Brief description of the drawings
Fig. 1 is the structure chart of rhombus inner support fixture of the present invention;
Fig. 2 is structure chart when support platform is propped up two stretching back of the body blowing mould pieces simultaneously in the present invention;
Fig. 3 is the structure chart of stretching back of the body blowing mould piece in the present invention;
Fig. 4 is the structure chart at the back of the body of stretching shown in Fig. 3 another visual angle of blowing mould piece;
Fig. 5 is the three-dimensional structure diagram of part locating ring in the present invention;
Fig. 6 is the profile of the locating ring of part shown in Fig. 5;
Fig. 7 is the schematic diagram of support ring weld seam of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, rhombus inner support fixture for pipe welding of the present invention, comprises at least one rhombus inner support unit1, with rhombus inner support unit 1 promote one to one cylinder 2, be pressed on pipe 100 two ends two end caps 3,Main shaft 4 and multiple stretching back of the body blowing mould piece 5.
Main shaft 4 is placed in pipe 100 centers, and main shaft 4 two ends are individually fixed in the center of two end caps 3.
Each promotion cylinder 2 is close to corresponding rhombus inner support unit 1 and is installed on main shaft 4.
Each rhombus inner support unit 1 comprises locating ring 11, loose collar 12 and at least one rhombic supporting frame 13, withAnd two support platforms 14 of corresponding each rhombic supporting frame 13. Locating ring 11 is enclosed within on main shaft 4 regularly.Loose collar 12 is enclosed within on main shaft 4, along with correspondence promotes the promotion of cylinder 2 and moves forward and backward along main shaft 4. Water chestnutThe a pair of diagonal angle of shape bracing frame 13 is articulated with respectively locating ring 11 and loose collar 12, and another biconjugate angle is hinged respectivelyIn two support platforms 14.
Locating ring 11 comprises hold-down ring 111, connecting ring 112 and multiple the first articulated elements 113. Hold-down ring 111Be enclosed within regularly on main shaft 4. Connecting ring 112 is enclosed within on main shaft 4 and with hold-down ring 111 and joins. Each first hingedPart 113 is along the circumferential direction arranged at connecting ring 112, is hinged with each rhombic supporting frame 13. Loose collar 12 edgesCircumferencial direction is provided with multiple second articulated elements 121 hinged with each rhombic supporting frame 13.
Each rhombic supporting frame 13 is made up of four support bars 131, and each support bar 131 is as a limit. FourRoot support bar 131 is articulated with the first articulated elements 113, the second articulated elements 121 or support platform 14 separately, compositionA rhombus. Wherein articulated manner is to connect by rivet.
Each support platform 14 is fixed at least one stretching back of the body blowing mould piece 5, and concrete quantity is determined according to actual conditions.Sometimes, adjacent plug-in part axial distance is very near, due to size, not enough by two rhombus inner support unit1 props up, and can prop up two stretching back of the body blowing mould pieces 5 by a support platform 14, as shown in Figure 2 simultaneously. Like thisTwo stretchings back of the body blowing mould piece 5 can be protected the welding of the plug-in part that two distances are close simultaneously.
On the circumference of same pipe 100, rhombic supporting frame 13 quantity are determined by the quantity required of stretching back of the body blowing mould piece 5Fixed. Each rhombic supporting frame 13 of same circumference is connected between locating ring 11, loose collar 12. Promote cylinder 2When extension, each rhombic supporting frame 13 is propped up, and each stretching back of the body blowing mould piece 5 is close to inwall; Promoting cylinder 2 shrinksTime, each rhombic supporting frame 13 is retracted, and each stretching back of the body blowing mould piece 5, away from inwall, is fetched workpiece after convenient welding.
Stretching back of the body blowing mould piece 5 acts on the inwall at outer suspension member place, can give the pre-clamping force in one of welding position, risesTo the effect that reduces tubing welding temperature distortion, because stretching is carried on the back the inwall that blowing mould piece 5 is close to pipe 100, also canPlay and reduce weldering leakage effect, meanwhile, stretching back of the body blowing mould piece 5 butt welding back part blown inert gas, play the back of the body and blow protectionThe effect of weld seam.
Refer to Fig. 3, Fig. 4, stretching back of the body blowing mould piece 5 comprises mounting blocks 51, multiple elastic component 52, stretching air blowingPiece 53, multiple guide positioning pin 54 and Duo Gen back-moving spring 55.
Mounting blocks 51 is for hinged with the support bar 131 of rhombic supporting frame 13. Stretching air blowing piece 53 is by each bulletProperty part 52 is fixed on the surface of mounting blocks 51. Because consider when rhombic supporting frame 13 on circumference is propped up, haveThe reasons such as manufacturing tolerance, adopt elastic component 52 to connect stretching air blowing piece 53, the stretching air blowing piece that can prevent, 53Be adjacent to tube wall, some stretching air blowing pieces 53 are also gapped with tube wall, reach the effect of tolerance balancing. Meanwhile,The stressed uniform compression of stretching air blowing piece 53 that elastic component 52 makes circumferencial direction in a circumferential direction, is close to tube wall,Thereby eliminate the impact that rhombus foozle is brought. Consider that stretching air blowing piece 53 and mounting blocks 51 need guiding fixedPosition effect, each guide positioning pin 54 connects stretching air blowing piece 53 and mounting blocks 51.
Between stretching air blowing piece 53 and tube wall, also exist foozle, so stretching air blowing piece 53 is by two half blocksComposition, is strained by back-moving spring 55 between these two half blocks, can offset the error between stretching air blowing piece 53 and tube wall,Reach stretching back of the body blowing mould piece 5 and be close to the effect of tube wall. Consider the uniformity of back side air blowing protection, stretching air blowing piece53 surfaces have the multiple equally spaced groove of dark 1mm, wide 1mm along the circumferencial direction of pipe 100. Simultaneously forPrevent from being stained with slag, the material selection copper material of stretching air blowing piece 53 is made.
Stretching back of the body blowing mould piece 5 can be realized external electromagnetic valve and control separately aspect control, that is: each stretching back of the body blowing mouldPiece 5 is controlled separately by an external electromagnetic valve. When outside welding when suspension member, can open by magnetic valve correspondingStretching back of the body blowing mould piece 5, and all the other stretchings back of the body blowing mould pieces 5 are all in closed condition, it is plug-in that protection is in weldingThe back of part. Like this, can save a large amount of inert gases, effectively the outer suspension member of protection welding.
The quantity of the rhombic supporting frame 13 in each rhombus inner support unit 1 is identical and corresponding one by one, each mutual correspondenceRhombic supporting frame 13 is positioned at same plane, as shown in Figure 1. Three promote cylinder 2 respectively by outside choke valveForm gas control loop with pressure valve, by regulating outside choke valve and pressure valve to control each rhombus inner support unit1, to regulate stretching back of the body blowing mould piece 5 to be adjacent to the support force size of tube wall. Also can control separately each promotion cylinder2 control independent extension and the compression of single rhombus inner support unit 1, very convenient inspection and debugging stretching back of the body blowing mouldPiece 5 is suitably adjacent to tube wall.
Refer to Fig. 5, Fig. 6, connecting ring 112 is in each the first articulated elements 113 positions, and loose collar 12Be equipped with lateral adjustments pad 200 in each the second articulated elements 121 positions and vertically adjust pad 300. By horizontal strokeSuitably adjust rhombus to adjusting pad 200 with vertically adjusting pad 300, to ensure that being adjacent to module is close to barrel surface.
Refer to Fig. 7, prop girth joint 400 with rhombus inner support fixture, to girth joint 400 protection of blowing.The quantity of the quantity of the support bar of rhombus inner support fixture and stretching back of the body blowing mould piece is by the size of pipe and the quality of weld seamRequire to determine.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, the technology in relevant technologies fieldPersonnel, without departing from the spirit and scope of the present invention, can also make various conversion or modification, thereforeAll technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (9)
1. a rhombus inner support fixture for pipe welding, is characterized in that, comprise at least one rhombus inner support unit,Promote one to one cylinder with described rhombus inner support unit, be pressed on pipe two ends two end caps, main shaft andMultiple stretching back of the body blowing mould pieces, wherein,
Described main shaft is placed in pipe center, and two ends are individually fixed in the center of two described end caps;
Described rhombus inner support unit corresponding to each described promotion cylinder next-door neighbour is fixedly arranged on described main shaft;
Each described rhombus inner support unit comprises locating ring, loose collar and at least one rhombic supporting frame,
Described locating ring is enclosed within on described main shaft regularly;
Described loose collar is enclosed within on described main shaft, along with the promotion of the described promotion cylinder of correspondence before described main shaftRear movement;
The a pair of diagonal angle of described rhombic supporting frame is articulated with respectively described locating ring and described loose collar, another biconjugate angleBe articulated with respectively two support platforms; Each described support platform is fixed stretching back of the body blowing mould piece described at least one.
2. pipe welding rhombus inner support fixture according to claim 1, is characterized in that described stretchingBack of the body blowing mould piece comprises:
The mounting blocks hinged with described rhombic supporting frame;
Multiple elastic components;
Be fixed on the stretching air blowing piece on described mounting blocks surface by each described elastic component; And
Connect multiple guide positioning pins of described stretching air blowing piece and described mounting blocks.
3. pipe welding rhombus inner support fixture according to claim 2, is characterized in that described stretchingAir blowing piece is made up of two half blocks, between these two half blocks, is connected by many back-moving springs.
4. pipe welding rhombus inner support fixture according to claim 2, is characterized in that described stretchingAir blowing piece surface has the multiple equally spaced groove of dark 1mm, wide 1mm along the circumferencial direction of pipe.
5. pipe welding rhombus inner support fixture according to claim 1, is characterized in that,
Described locating ring comprises:
Be enclosed within regularly the hold-down ring on described main shaft;
The connecting ring that is enclosed within on described main shaft and joins with described hold-down ring; And
Along the circumferential direction be arranged at described connecting ring and multiple first articulated elements hinged with each described rhombic supporting frame;
Described loose collar is along the circumferential direction provided with multiple second articulated elements hinged with each described rhombic supporting frame.
6. rhombus inner support fixture for pipe according to claim 5 welding, is characterized in that, each described inRhombic supporting frame is by four support bar group that are articulated with described the first articulated elements, the second articulated elements or support platformBecome.
7. pipe welding rhombus inner support fixture according to claim 6, is characterized in that described connectionRing is equipped with horizontal stroke in each described the first articulated elements position and described loose collar in each described the second articulated elements positionTo regulating pad and vertically adjusting pad.
8. pipe welding rhombus inner support fixture according to claim 1, is characterized in that each described water chestnutThe quantity of the described rhombic supporting frame in shape inner support unit is identical and corresponding one by one, and the described rhombus of each mutual correspondence props upSupport is positioned at same plane.
9. rhombus inner support fixture for pipe according to claim 1 welding, is characterized in that, each described inStretching back of the body blowing mould piece is controlled separately by an external electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177000.8A CN105598631B (en) | 2016-03-25 | 2016-03-25 | Rhombus inner support clamp is used in a kind of pipe welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177000.8A CN105598631B (en) | 2016-03-25 | 2016-03-25 | Rhombus inner support clamp is used in a kind of pipe welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105598631A true CN105598631A (en) | 2016-05-25 |
| CN105598631B CN105598631B (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610177000.8A Active CN105598631B (en) | 2016-03-25 | 2016-03-25 | Rhombus inner support clamp is used in a kind of pipe welding |
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