CN108145371A - Pipe fitting fixing tool, pipe fitting welding device and pipe fitting welding equipment - Google Patents
Pipe fitting fixing tool, pipe fitting welding device and pipe fitting welding equipment Download PDFInfo
- Publication number
- CN108145371A CN108145371A CN201810085461.1A CN201810085461A CN108145371A CN 108145371 A CN108145371 A CN 108145371A CN 201810085461 A CN201810085461 A CN 201810085461A CN 108145371 A CN108145371 A CN 108145371A
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- pipe fitting
- pipe
- fixing tool
- fixed
- fixed part
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- 238000003466 welding Methods 0.000 title claims abstract description 115
- 230000004323 axial length Effects 0.000 claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000003032 molecular docking Methods 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 9
- 229910052721 tungsten Inorganic materials 0.000 claims description 9
- 239000010937 tungsten Substances 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000018109 developmental process Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 35
- 239000002184 metal Substances 0.000 description 35
- 239000011521 glass Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
-
- 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
- B23K37/0533—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 external pipe alignment clamps
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention provides a kind of pipe fitting fixing tool, it is provided with the pipe fitting welding device and welding equipment of the fixing tool.The pipe fitting fixing tool has the extension to fix the fixed part of pipe fitting and be connected with fixed part.The axial length of the fixed part is less than the axial length of the extension, and the internal diameter of the extension is more than the internal diameter of the fixed part.Pipe fitting welding device includes torch body, at least one fixture for being arranged on torch body at least side, when using, when pipe fitting to be welded is fixed on by the fixed part of the pipe fitting fixing tool in pipe fitting fixing tool, pipe fitting to be welded is fixed by the extension clamping cooperation of the fixture and pipe fitting fixing tool.
Description
Technical field
The pipe fitting for implementing welding in smaller space the present invention relates to welding technology field more particularly to a kind of convenience is fixed
Tooling, pipe fitting welding device and pipe fitting welding equipment.
Background technology
Evacuated collector tube is the core component of photo-thermal power generation.The structure of existing evacuated collector tube is usually：In a metal tube
Upper coating solar energy absorbing coating, the metal tube outer sheath glass tube after coating, vacuumizes between glass tube and metal tube, and golden
Belong to and being connected with each other between pipe and glass tube by expansion compensation device, which is usually bellows.It is general outdoor
In photo-thermal power generation project, the evacuated collector tube of large area is usually provided with, adjacent evacuated collector tube passes through phase between metal tube
It is mutually welded to connect, to improve energy stores, efficiently uses natural energy resources.
But, on the one hand, because the connection of glass tube and expansion compensation device is set so that the axle center of glass tube and metal tube
It might have offset；On the other hand, because the intensity of glass tube is relatively weak, it has not been convenient to directly thermal-collecting tube be carried out by glass tube
Stationary positioned is welded；So as in the prior art, to adapt to existing welding equipment, need reserved enough exposures outward
Metal tube is welded and fixed with facilitating.But thus, exposed metal tube easily loses more thermal energy, cause the energy unrestrained
Take；To reduce thermal loss, need to set small as possible by the metal pipe size for being exposed for welding outward, thus cause
Welding is difficult to.
In view of this, it is necessary to existing fixing tool and welding equipment be improved, to solve the above problems.
Invention content
It is simple the purpose of the present invention is to provide a kind of fixation and weld-end fittings regular worker is conveniently implemented in smaller space
Dress, pipe fitting welding device and pipe fitting welding equipment.
To achieve the above object, the present invention provides a kind of pipe fitting fixing tools, have to the fixation of fixed pipe fitting
Portion and the extension being connected with fixed part, the axial length of the fixed part is less than the axial length of the extension, described
The internal diameter of extension is more than the internal diameter of the fixed part.
As a further improvement on the present invention, the pipe fitting fixing tool is designed in two halves formula, i.e., mutually right including two
The sub- tooling connect, each sub- tooling is integrally formed with a fixed part and an extension, and two sub- works
The fixed part and extension of dress circumferentially form closed circular loop configuration after corresponding to docking.
As a further improvement on the present invention, the fixed part of the sub- tooling has the interface being mutually butted, wherein one
The fixed part both sides of sub- tooling are provided through mounting hole, the interface of another sub- tooling along the direction of vertical axial respectively
The corresponding mounting hole is recessed with fixing groove, and the pipe fitting fixing tool further includes matched with the mounting hole and fixing groove
Fixing screws.
As a further improvement on the present invention, the fixed part is identical with the outer diameter of extension, aforementioned wherein one sub- tooling
Both sides be respectively formed fluted, the mounting hole is connected with the groove.
To achieve the above object, the present invention also provides a kind of pipe fitting welding device, including:Torch body；It is at least one
Fixture is arranged on torch body at least side, and the fixture is designed in upper and lower two halves formula, and the upper fixture body including cooperating
With lower clamp body；The pipe fitting welding device further includes the pipe fitting fixing tool that setting is matched at least one fixture,
The above-mentioned setting of pipe fitting fixing tool, in use, pipe fitting to be welded is fixed by the fixed part of the pipe fitting fixing tool
When in pipe fitting fixing tool, pipe fitting to be welded is carried out by the extension clamping cooperation of the fixture and pipe fitting fixing tool
It is fixed.
As a further improvement on the present invention, the pipe fitting fixing tool is designed in two halves formula, i.e., mutually right including two
The sub- tooling connect, each sub- tooling is integrally formed with a fixed part and an extension, and two sub- works
The fixed part and extension of dress, which correspond to, circumferentially forms closed circular loop configuration after docking, the upper fixture body and lower clamp body it
Between be formed with the grasping part to match with the extension.
As a further improvement on the present invention, the fixed part of the sub- tooling has the interface being mutually butted, wherein one
The fixed part both sides of sub- tooling are provided through mounting hole, the interface of another sub- tooling along the direction of vertical axial respectively
The corresponding mounting hole is recessed with fixing groove, and the pipe fitting fixing tool further includes matched with the mounting hole and fixing groove
Fixing screws.
As a further improvement on the present invention, the fixed part is identical with the outer diameter of extension, aforementioned wherein one sub- tooling
Both sides be respectively formed fluted, the mounting hole is connected with the groove.
As a further improvement on the present invention, it is provided on the extension of the pipe fitting fixing tool and the clamp body phase
Coordinate the align structures of alignment.
As a further improvement on the present invention, the upper fixture body and lower clamp body have respectively included a substrate and have been fixed on
After clamping piece on the substrate, the upper fixture body and the combination of lower clamp body, a grasping part is formed among the clamping piece；
In use, the pipe fitting fixing tool is clamped in grasping part.
As a further improvement on the present invention, the clamping piece has holder body and outwardly dashes forward from holder body
The holding parts stretched, the holding parts are mutually fixed with the substrate, and the grasping part is formed between holder body, the clamping
The development length of main body in an axial direction is more than the thickness of the substrate and the axial length of fixed part, the axial direction less than the extension
Length.
As a further improvement on the present invention, the torch body is automatic circular seam welding pipe tongs, including gear frid, tooth
Wheel cover board, the rotation gear ring being arranged between gear frid and gear cover plate, the tungsten needle being fixed on rotation gear ring, driving rotation
Gear ring drives the driving device of tungsten needle rotation welding；The torch body both sides are both provided with the fixture, the fixture difference
Recline gear frid and the setting of gear cover plate outside, and the pipe fitting welding device includes a pair of folder with torch body both sides respectively
Has the matched pipe fitting fixing tool, to carry out the connecting welding of a pair of of pipe fitting.
To achieve the above object, the present invention also provides a kind of pipe fitting welding equipment, are filled including the pipe fitting welding
It puts, coordinate pipe fitting welding device so that position to be welded carries out the back of the body protective device of back gas shielded to pipe fitting in welding.
As a further improvement on the present invention, the back of the body protective device includes the air inlet pipe being connected with each other in an axial direction and exhaust
Pipe, the air inlet pipe and exhaust pipe are radially inside and outside respectively at the position of junction to be provided through several stomatas, described
Air inlet pipe does not connect setting in an axial direction with exhaust pipe in the inside of junction.
As a further improvement on the present invention, the air inlet pipe and exhaust pipe respectively include lengths of steel pipes, and using steel pipe
Section is mutually butted in an axial direction, and the lengths of steel pipes of the air inlet pipe has the first butt end being connected to each other with the exhaust pipe, the row
The lengths of steel pipes of tracheae has the second butt end being connected to each other with the air inlet pipe, and first butt end and the second butt end are in
Closed design, and be fixed to each other between the two using groove and protrusion.
As a further improvement on the present invention, the air inlet pipe and exhaust pipe have been respectively further comprised uses with the lengths of steel pipes
The flexible tube section that connector is fixedly connected, the back of the body protective device further include and the mutually fixed auxiliary drawstring of connector.
As a further improvement on the present invention, the back of the body protective device further includes is separately fixed at the air inlet pipe in an axial direction
With the sealing element on the outside of the stomata of exhaust pipe, in use, welding position is sealed in one by the sealing element in arranged at inner side of pipe fitting to be welded
The stomata of a separate space, the air inlet pipe and exhaust pipe is exposed in separate space.
As a further improvement on the present invention, the sealing element is set on the air inlet pipe and exhaust pipe, the pipe fitting
Welding back of the body protective device is further included to the hold-doun nut of the fixation sealing element, and the air inlet pipe and exhaust pipe are equipped with and institute
State the matched screw thread of hold-doun nut.
As a further improvement on the present invention, the back of the body protective device further includes the survey that connection is arranged on the exhaust pipe
Press instrument.
As a further improvement on the present invention, the pipe fitting welding equipment further includes that pipe fitting welding device is coordinated to treat
The axle center of welded tube part is supported the pipe fitting support device of adjusting, and the pipe fitting support device includes pedestal, is movably arranged on bottom
Pipe fitting on seat and the regulating mechanism pipe fitting to be adjusted in the horizontal direction with the position of short transverse,
The pipe fitting has bottom plate, is arranged on bottom plate with the bracket of support tubes, and the regulating mechanism is arranged on the pedestal
Between bottom plate.
The beneficial effects of the invention are as follows：On the one hand the pipe fitting fixing tool of the present invention can pass through the smaller fixation of axial length
Portion carries out exposed metal tube to be welded directly to fix, and it is smaller not to only take up metal tube area so that the exposed size of metal tube
When reducing as far as possible, and directly being fixed with metal tube using fixed part, it is ensured that fixing tool is consistent with the axis of metal tube,
And then facilitate the docking of metal tube；On the other hand, it is designed by the extension that is connect with fixed part, it can cannot by metal tube side
Glass tube being directly fixed etc. is housed in extension, can be to pipe fitting regular worker furthermore with the rigid structure of extension
Load is integrally fixed with workpiece to be welded, so increase workpiece to be welded indirectly can fixed-area；In addition, pipe fitting of the present invention
Welder and welding equipment are by the matching design of pipe fitting fixing tool, torch body and fixture, it can be achieved that similar thermal-collecting tube
Fixation and welding.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram of thermal-collecting tube.
Fig. 2 is the part isometric schematic diagram of pipe fitting welding equipment of the present invention.
Fig. 3 is the stereogram of pipe fitting fixing tool of the present invention.
Fig. 4 is the view of another angle of pipe fitting fixing tool in Fig. 3.
Fig. 5 is the three-dimensional exploded view of pipe fitting fixing tool in Fig. 3.
Fig. 6 is the cooperation schematic diagram of pipe fitting welding device of the present invention and part thermal-collecting tube.
Fig. 7 is the schematic cross-sectional view of Fig. 6, shows the cooperation shape of thermal-collecting tube, pipe fitting fixing tool, fixture and torch body
State.
Fig. 8 is the optical cable of Fig. 6.
Fig. 9 is the torch body of pipe fitting welding device of the present invention and the optical cable of fixture.
Figure 10 is the stereogram of torch body in Fig. 9.
Figure 11 is the optical cable of torch body in Figure 10.
Figure 12 is the part-structure schematic diagram of the back of the body protective device of pipe fitting welding equipment in Fig. 2.
Figure 13 is the schematic cross-sectional view of Figure 12.
Figure 14 is the stereogram of the pipe fitting support device of pipe fitting welding equipment in Fig. 2.
Figure 15 is the optical cable of pipe fitting support device in Figure 14.
Figure 16 is the optical cable of the regulating mechanism of pipe fitting support device in Figure 14.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, it is right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
In addition, in the following specific embodiments of the present invention, mainly it is specifically described by taking the fixation of thermal-collecting tube and welding as an example,
But the present invention is not limited to the fixation and welding to thermal-collecting tube, as long as being related to the fixed ruler that metal tube position side to be welded is reserved
It is very little smaller and be difficult to fixed work of feeling relieved except outer other positions can be fixed in metal tube side small space in position to be welded
Part, the fixing tool and welder and equipment of the applicable present invention.
By taking the positioning and welding of thermal-collecting tube 9 as an example, the structure diagram for thermal-collecting tube 9 is please referred to Fig.1.The thermal-collecting tube 9
With internally positioned metal tube 91, it is arranged on the glass tube 92 in the outside of metal tube 91 and connection metal tube 91 and glass tube 92
Bellows 93.Bellows 93 is stretched out for welding in 91 end of metal tube.In general, it is exposed for the metal of welding outward
Pipe size sets the smaller the better.
Fig. 3 to Fig. 5 show a preferred embodiment of pipe fitting fixing tool 1 of the present invention.The pipe fitting fixing tool 1 has
To the extension 12 fixed the fixed part 11 of pipe fitting and be connected with fixed part 11.The axial length of the fixed part 11 is less than
The axial length of the extension 12, the internal diameter of the extension 12 are more than the internal diameter of the fixed part 11.Wherein, in Fig. 1
When for thermal-collecting tube 9, the fixed part 11 is i.e. to the fixation metal tube 91, and bellows 93 is then housed in extension 12
It is interior, and then the dead axle heart can be carried out to entire thermal-collecting tube 9 by fixed part 11 and fixed, external folder can then be facilitated by extension 12
Has the fixation to entire thermal-collecting tube 9.Fixed part 11 described in the present embodiment and extension 12 are integrally formed and are coaxially disposed.
Preferably, the fixed part 11 has consolidates to the internal face 1110 of the bellows 93 that reclines, the metal tube 91 that reclines
Determine face 1111, the junction of the internal face 1110 and stationary plane 1111 is formed with chamfering 1112, to avoid metal tube 91 and wave
Welding position between line pipe 93, conveniently recline positioning.
Specifically, for convenience of operating, pipe fitting fixing tool 1 of the present invention is designed in two halves formula, i.e., including two mutually
The sub- tooling 10 of docking.Each sub- tooling 10 is integrally formed with 11 and one extension 12 of fixed part, and two
The fixed part 11 and extension 12 of a sub- tooling 10 circumferentially form closed circular loop configuration after corresponding to docking；Certainly, institute
State the shape design of fixed part 11 and extension 12 also can carry out adaptability design according to cooperation fixture；Closed after docking sets
Meter can ensure that fixed part 11 and extension 12 are respectively provided with higher intensity, the axle center after ensureing fixed stability and fixing
Stablize.
Such as Fig. 5, the fixed part 11 of the sub- tooling 10 has the interface 111 being mutually butted.Wherein one sub- tooling 10
11 both sides of fixed part are provided through mounting hole 112 along the direction of vertical axial respectively；The interface of another sub- tooling 10
111, which correspond to the mounting hole 112, is recessed with fixing groove 113.The pipe fitting fixing tool 1 further include with the mounting hole 112 and
113 matched fixing screws of fixing groove（It is not shown）, two sub- toolings 10 are fixed together.
In the present embodiment, the intensity for guarantee fixed part 11 and fixed part 11 and 12 connecting portion of extension, by described in
The outer diameter of fixed part 11 and extension 12 is set as identical.11 front outer of fixed part is formed with the guiding face for tilting extension
1113, to facilitate the installation in later stage.
Certainly, because the internal diameter of the fixed part 11 is relatively small, also the outer diameter of fixed part 11 can be set smaller than extending
Then fixed part 11 and extension 12 by the connecting portion radially extended are attached, can also realize this hair by the outer diameter in portion 12
Bright technical purpose.When being designed using this kind, the space in 11 outside of fixed part can increase, and be set with the resigning for facilitating other devices
It puts, but compares for present pre-ferred embodiments, the connecting portion thickness radially extended is relatively thin, therefore needs basis can be exposed
The size of fixed metal tube 91 carries out adaptability design.
In addition, fluted 114 are respectively formed in the both sides of aforementioned wherein one sub- tooling 10 in the present embodiment, the mounting hole
112 are connected, and then can shorten the length of mounting hole 112 with the groove 114, facilitate the installation of fixing screws and fixed behaviour
Make.
In addition, the align structures 121 that alignment is conveniently fixed are provided on the extension 12.Described in the present embodiment
12 outside of extension is along the circumferential direction recessed with a recessed portion 122, and the cephalolateral margin of the recessed portion 122 is formed as the alignment knot
Structure 121.
As known from the above, pipe fitting fixing tool 1 of the invention on the one hand can be right by the smaller fixed part 11 of axial length
Exposed metal tube to be welded 91 is directly fixed, and it is smaller not only take up 91 area of metal tube so that 91 exposed ruler of metal tube
It is very little to reduce as far as possible, and when use fixed part 11 and directly fixed metal tube 91, it is ensured that fixing tool 1 and metal tube 91
Axis is consistent, and then facilitates the docking of metal tube 91；On the other hand, it is designed by the extension 12 being connect with fixed part 11, it can
Glass tube 92 that 91 side of metal tube cannot be directly fixed etc. is housed in extension 12, furthermore with extension 12
Pipe fitting fixing tool 1 can be integrally fixed, and then increase workpiece to be welded indirectly in rigid structure together with workpiece to be welded
It can fixed-area.
The pipe fitting welding device 100 that Fig. 6 to Figure 11 show the present invention is please referred to, the pipe fitting welding device 100 includes
Torch body 2, at least one fixture 3 being equipped with torch body 2 coordinate fixation to be welded at least one fixture 3
The pipe fitting fixing tool 1 of pipe fitting.
Wherein, at least one fixture 3 is arranged on at least side of torch body 2.The fixture 3 is set in upper and lower two halves formula
Meter, and the upper fixture body 31 including cooperating and lower clamp body 32；In in use, by pipe fitting to be welded（It is collection in the present embodiment
Heat pipe 9）When being fixed in pipe fitting fixing tool 1 by the fixed part 11 of the pipe fitting fixing tool 1, by the fixture 3 with
The clamping of extension 12 of pipe fitting fixing tool 1 coordinates and pipe fitting to be welded is fixed.The upper fixture body 31 and lower clamp body
The grasping part 33 to match with the extension 12 is formed between 32.
The above-mentioned pipe fitting welding device 100 of the present invention is applicable between thermal-collecting tube 9 and other pipe fittings or another thermal-collecting tube 9
Welding.
It, can be only if other described pipe fitting surrounding spaces are larger in the welding for carrying out thermal-collecting tube 9 and other another pipe fittings
Need a fixture 3 that thermal-collecting tube 9 is fixed with pipe fitting fixing tool 1, other aforementioned pipe fittings carry out pre- with thermal-collecting tube 9
After first point postwelding can be fixed by another support device or another fixture, you can welded using torch body 2.
When needing to carry out the welding of thermal-collecting tube 9 and thermal-collecting tube 9, such as Fig. 6 to Figure 11, pipe fitting welding device 100 of the present invention
Torch body 2 use automatic circular seam welding pipe tongs；Meanwhile the fixture 3 is set as a pair of and sticks on circumferential weld automatic welding respectively
The both sides of pipe wrench, correspondingly, two pipe fitting fixing tools 1 of setting are respectively cooperating with carry out two with a pair of fixture 3 respectively
The dead axle heart of a thermal-collecting tube 9 is fixed.After being fixed, it may be such that the welding position between thermal-collecting tube 9 is sealed in welding gun sheet
In body 2, and then it can realize the sealing welding in small space.
Wherein, as shown in Figs. 8 to 11, heretofore described 2 entirety of torch body is substantially in the U-shaped shape of upward opening,
Middle position is formed as pipe fitting host cavity or to weld chamber, to facilitate the installation of pipe fitting to be welded and welding；By the folder
After tool 3 is fixed to 2 both sides of torch body and fastens, fixture 3 closes the open top lid of torch body 2 so that welding chamber is close
Envelope, and then facilitate and welding is sealed using protective gas.
The torch body 2 includes being oppositely arranged and the gear frid 21 for the cooperation that is fixed to each other and gear cover plate 22, is formed
It is host cavity 20 between gear frid 21 and gear cover plate 22, the rotation gear ring 23 being rotatably arranged in host cavity 20, fixed
Tungsten needle 24, driving rotation gear ring 23 on rotation gear ring 23 drive the driving device 25 of the rotation welding of tungsten needle 24.
The both sides of torch body 2 described in the present embodiment are both provided with the fixture 3, and the fixture 3 reclines gear grooved respectively
Plate 21 and 22 outside of gear cover plate are set；The pipe fitting welding device 100 includes a pair of fixture with 2 both sides of torch body respectively
The 3 matched pipe fitting fixing tools 1, to carry out the connecting welding of a pair of of pipe fitting.
Specifically, with reference to shown in Fig. 6 to Figure 11, the lower clamp body 32 of the fixture 3 is fixed on gear frid 21 and gear
At the lower position of cover board 22, upper fixture body 31 is corresponding with the side of the gear frid 21 and gear cover plate 22 to be provided through
There is a fixed rotating shaft 4 to pass through the fixed perforation 26 by the upper fixture for one fixation perforation 26, the pipe fitting welding device 100
31 and torch body 2 be fixed together, and the upper fixture body 31 is allow to be opened, and then conveniently take around the fixed rotating shaft 4
Put the pipe fitting fixing tool 1 for being fixed with pipe fitting to be welded.Correspondingly, it is relatively fixed and wears in the upper fixture body 31 and lower clamp body 32
The opposite side in hole 26 is provided with the buckling structure 36 for carrying out clasp up and down.
It please join Fig. 9, and with reference to shown in Fig. 6 to Fig. 8, the upper fixture body 31 and lower clamp body 32 have respectively included a substrate
34 and the clamping piece 35 that is fixed on the substrate 34.After the upper fixture body 31 and the combination of lower clamp body 32, the clamping is empty
Between 33 be formed among the clamping piece 35；In use, the pipe fitting fixing tool 1 is clamped to clamping by extension 12
In space 33.
The clamping piece 35 has holder body 351 and the holding parts 352 from the outwardly projection of holder body 351.
The holding parts 352 are fixed with 34 phase of substrate, and the grasping part 33 is formed between holder body 351.The clamping
The development length of main body 351 in an axial direction is more than the thickness of the substrate 34 and the axial direction of the fixed part 11 of pipe fitting fixing tool 1 is long
It spends, less than the axial length of the extension 12.
In use, first by a pair of thermal-collecting tube 9 using progress partial points weldering after pipe wrench alignment；
Then pipe fitting fixing tool 1 is fixed on the outside of the welding position of thermal-collecting tube 9；
The fixture 3 of 2 both sides of torch body is opened again, the torch body 2 with fixture 3 is moved to the weld part of thermal-collecting tube 9
Around position so that the welding position of thermal-collecting tube 9 is located at the welding intracavitary of torch body 2, and weld seam is made to align with tungsten needle 24, can
By the way that the align structures 121 in the outer rim of fixture 3 and 1 extension 12 of pipe fitting fixing tool are aligned to ensure weld seam and tungsten needle
24 alignment；At this point, partial tube fixing tool 1 protrudes into two side positions of welding intracavitary, as long as ensureing that tungsten needle 24 can stretch
Enter weld seam position and carry out alignment welding, so that even if the exposed size in 91 welding position of metal tube of thermal-collecting tube 9 is smaller,
Pipe fitting welding device 100 of the present invention also can effectively realize welding.
After alignment, the fixture 3 is carried out to fasten the welding that can start torch body 2 and carry out weld seam.
Certainly, the thermal-collecting tube 9 by the alignment of align structures 121 and fixture 3 can also be clamped and grasped without being welded in advance
Make, substantially can also ensure the effective docking and welding of two thermal-collecting tubes 9.
Incorporated by reference to shown in Fig. 2 to Figure 16, the invention further relates to a kind of pipe fitting welding equipment.The pipe fitting welding equipment includes
Above-mentioned pipe fitting welding device 100, cooperation pipe fitting welding device 100 are in welding, to pipe fitting, position to be welded carries out back gas shielded
Back of the body protective device 500；Preferably, still further comprise the axle center that pipe fitting welding device 100 is coordinated to treat welded tube part into
The pipe fitting support device 600 that row support is adjusted.
As shown in Figure 12 and Figure 13, the back of the body protective device 500 includes the air inlet pipe 51 being connected with each other in an axial direction and exhaust
Pipe 52.The air inlet pipe 51 and exhaust pipe 52 is radially inside and outside respectively at the position of junction is provided through several stomatas
53, the air inlet pipe 51 does not connect setting in an axial direction with exhaust pipe 52 in the inside of junction.In use, make the junction pair
The weld seam of the accurate pipe fitting to be welded, so as to when being filled with protective gas to back of the body protective device 500, protective gas is from air inlet pipe 51
Stomata 53 discharges after discharging across weld metal zone and then from the stomata 53 of exhaust pipe 52, can effectively realize the gas guarantor to weld seam
Shield.
Further, the back of the body protective device 500 further includes the measuring cell 7 that connection is arranged on described 52.Pass through pressure measurement
Instrument 7 can adjust aeration quantity, so that the protection air pressure and the tension in weld seam molten bath around weld seam are adapted so that after molding
Smooth welded seam.
Specifically, the air inlet pipe 51 and exhaust pipe 52 respectively include lengths of steel pipes 54 and with the lengths of steel pipes 54 using connection
The flexible tube section 56 that part 55 is fixedly connected.
Wherein, it is mutually butted, and then can protected in an axial direction using lengths of steel pipes 54 between the air inlet pipe 51 and exhaust pipe 52
Demonstrate,prove the docking effect of the two.The lengths of steel pipes 54 of the air inlet pipe 51 has the first butt end being connected to each other with the exhaust pipe 52
541, the lengths of steel pipes 54 of the exhaust pipe 52 has the second butt end 542 being connected to each other with the air inlet pipe 51, described first pair
541 and second butt end 542 of end is connect in closed design, and is fixed to each other between the two using groove and protrusion.
Specifically, in the present embodiment, indent is fluted in an axial direction for 541 end of the first butt end of the air inlet pipe 51
5411, the second butt end 542 of exhaust pipe 52 is convexly equipped with protrusion 5421 axially outward, and the groove 5411 and protrusion 5421 are adopted
It is mutually located with interference fit.Certainly, also can be by groove 5411 and protrusion 5421 to falling position setting, equally also attainable cost is sent out
Bright purpose.
The stomata 53 of the air inlet pipe 51 and exhaust pipe 52 is respectively close to 541 and second butt end of the first butt end
542 settings, and be uniformly arranged along the circumferencial direction of air inlet pipe 51 and exhaust pipe 52, it is set with reference to the rigidity of the lengths of steel pipes 54
It puts, it is ensured that in the girth welding for carrying out pipe fitting, to implementing preferable protection at position while welding.
In addition, by the setting of flexible tube section 56, the material of using of steel pipe can be reduced when pipe fitting to be welded is longer, and then reduce
Manufacture cost, and transport of convenient entire back of the body protective device 500 etc..Further, for convenience of entire back of the body protective device 500 from
Dismounting in pipe fitting avoids directly drawing flexible tube section 56 and causing damage of flexible tube section 56 etc., and back of the body protective device 500 is gone back in the present invention
Include with the mutually fixed auxiliary drawstring 57 of the connector 55, so as to when being exited from pipe fitting, can pass through and pull auxiliary
Drawstring 57 reduces the stress of flexible tube section 56, improves product service life.
Further, the back of the body protective device 500 further includes is separately fixed at the air inlet pipe 51 and exhaust pipe in an axial direction
The sealing element 58 in 52 53 outside of stomata；In use, welding position is sealed in one by the sealing element 58 in arranged at inner side of pipe fitting to be welded
The stomata 53 of a separate space, the air inlet pipe 51 and exhaust pipe 52 is exposed in separate space.
For convenience of installing and fixing, the sealing element 58 is arranged in the present invention and is fixed on the air inlet pipe 51 and exhaust pipe
On 52, it is preferable that be arranged sealing element 58 and be fixed on the lengths of steel pipes 54, the lengths of steel pipes 54 is coaxially set with the sealing element 58
It puts, can not only ensure that lengths of steel pipes 54 is located at the shaft core position of pipe fitting so that the protection gas discharged from the stomata 53 of lengths of steel pipes 54
Physical efficiency carries out uniform and stable gas shielded on entire circular weld；And it can ensure the stabilization of the axial movement of sealing element 58
Property.
Fixed thread is formed in the lengths of steel pipes 54,58 inside of sealing element can directly be set and the fixed thread
Matched threaded interior walls, and then the rotation of sealing element 58 is fixed in lengths of steel pipes 54.Certainly, also can by sealing element 58 sets be set to
After in lengths of steel pipes 54, the two is fixed using fluid sealant.
In the present embodiment, the sealing element 58 includes a middle ware partition board 581, is arranged on 581 liang of middle ware partition board
The gasket 582 of side and the fixed plate 583 for being arranged on 582 outside of gasket.The middle ware partition board 581 and fixed plate 583
Outer diameter be less than the gasket 582 outer diameter.The outer diameter of the gasket 582 is slightly larger than the internal diameter of pipe fitting to be welded.It is described close
Packing 582 is made of soft film.
Two layers of gasket 582 that sealing element 58 is set as including axially spaced setting by the present invention, on the one hand can ensure
Sealing effect, on the other hand the gasket 582 can be made flexible relative some, and then facilitate the peace into pipe fitting to be welded
Dress.
The pipe fitting welding back of the body protective device 500 is further included to the hold-doun nut 59 of the fixation sealing element 58；It is described
Hold-doun nut 59 is arranged on the both sides of the sealing element 58, on the one hand can be by fixed plate 583, gasket 582 and middle ware partition board
581 grip together, and on the other hand, the sealing element 58 is fixed in the lengths of steel pipes 54；Certainly, the air inlet pipe
51 and exhaust pipe 52 be equipped with and the 59 matched fixed thread of hold-doun nut.The development length of the fixed thread is more than
Thus the axial length of the hold-doun nut 59 can according to demand be adjusted the position of the sealing element 58.
In addition, above-mentioned auxiliary drawstring 57 also can be directly fixedly connected on the sealing element 58 by multiple spot or be fixed on fixation
On nut 59.
As shown in Figure 14 to Figure 16, and with reference to 3, the pipe fitting support device 600 includes pedestal 61, is movably arranged on pedestal
Pipe fitting 62 on 61, the regulating mechanism pipe fitting 62 to be adjusted in the horizontal direction with the position of short transverse
63。
Wherein, the pedestal 61 includes the upper backup pad to support lower supporting plate 611 to ground, be set to top
612nd, the link 613 of upper backup pad 612 and lower supporting plate 611 is connected.The area of the lower supporting plate 611 is more than the upper branch
The area of fagging 612, to ensure the chassis stability of pedestal 61；The link 613 includes bottom-up opposite in splayed configuration
A pair of of the support column being obliquely installed.
The pipe fitting 62 has bottom plate 621, is arranged on bottom plate 621 with the bracket of support tubes 622.
Specifically, in the present embodiment, the bottom plate 621 with the upper backup pad 612 and lower supporting plate 611 are parallel sets
It puts.The bracket 622 includes being vertically fixed on two pairs of support plates 6221 of 621 top of bottom plate, is rotatably provided in every a pair of of support
Idler wheel 6222 between plate 6221.A pair of idler wheel 6222 is mutually parallel and is arranged at intervals, and passes through a pair of idler wheel
6222 treat the support that welded tube part carries out other positions.Preferably, 6222 surface of idler wheel is provided with flexible support sleeve, with
Flexible support is carried out to the glass tube 92 of thermal-collecting tube 9.
The regulating mechanism 63 is arranged between the upper backup pad 612 of the pedestal 61 and the bottom plate 621 of pipe fitting 62,
And the adjustable plate 631 including being arranged between upper backup pad 612 and bottom plate 621, it is arranged on adjustable plate 631 and upper backup pad 612
Between height adjustment mechanism 632 and the level(l)ing mechanism 633 that is arranged between adjustable plate 631 and bottom plate 621.
Specifically, the height adjustment mechanism 632 is arranged on the centre position between adjustable plate 631 and upper backup pad 612,
And height adjusting is carried out using the screw regulator being vertically arranged.
In the present embodiment, the middle position of the adjustable plate 631 is formed with about one perforative perforation 6311, described
Screw regulator includes being fixed on the screw shell 6321 of 612 top of upper backup pad, the spiral shell being equipped with screw shell 6321
Bar 6322, the operating element 6323 being fixed on screw rod 6322；The screw rod 6322 passes through perforation 6311 and is revolved with adjustable plate 631
Turn to fix.In use, only need through 6323 rotary screw 6322 of operating element, you can realize the up and down adjustment of pipe fitting 62.
Further, the height adjustment mechanism 632 further include be arranged on 631 both sides of adjustable plate and upper backup pad 612 it
Between guiding mechanism 6324, in up and down adjustment pipe fitting 62, guiding pipe fitting vertical shift about 62.
Specifically, the guiding mechanism 6324 includes being fixed on the supporting block at 612 two side positions of top of upper backup pad
6325th, the guide groove 6326 that is set in supporting block 6325 is fixed on 631 lower section of adjustable plate and matches with guide groove 6326
The lead 6327 of conjunction.In the present embodiment, a pair of of guide groove 6326, the lead are arranged at intervals in each supporting block 6325
6327 are correspondingly arranged.Preferably, the elasticity member for being supported on 6327 lower section of lead is additionally provided in the guide groove 6326
Part（It is not shown）, to improve the degree of balance of support effect and pipe fitting 62.
In addition, the length of the adjustable plate 631 is more than the length of the bottom plate 621, the level(l)ing mechanism 633 includes
The mounting hole 6312 that is set on adjustable plate 631, the fixed block 6313 for being vertically fixed on 631 both sides of adjustable plate, in the horizontal direction
Using the adjusting screw rod 6314 being screwed on fixed block 6313, be set on bottom plate 621 and with mounting hole 6312 it is opposite
The elongated slot 6315 answered, may pass through elongated slot 6315 and with 6312 mutually fixed screw of mounting hole（It is not shown）, the adjusting screw rod
6314 are inwardly held in 621 side of bottom plate.
In use, after adjusting screw rod 6314 and screw are unscrewed, you can the horizontal position for carrying out pipe fitting 62 is adjusted, and is adjusted
After section is good, supported using adjusting screw rod 6314 at the both ends of bottom plate 621, you can consolidated the lateral position of pipe fitting 62
Fixed, bottom plate 621 is fixed on pedestal 61 by the screw, while limits bottom plate 621 on 6314 direction of vertical adjusting screw rod
It moves horizontally.
Summary is it is found that pipe fitting welding equipment of the present invention further can ensure the guarantor of weld seam by carrying on the back protective device 500
Welding effect is protected, and above-mentioned pipe fitting support device 600 can be realized by fine tuning of the regulating mechanism 63 to pipe fitting 62 to support
Effective fine tuning of pipe fitting so that the adjusting of pipe fitting position is more simple and convenient, and this kind is adjusted without mobile entire pipe fitting branch
Support arrangement 600 touches support tubes so that fine tuning is quickly and effectively realized, while ensure a pair of of the pipe fitting axis being welded to each other
Line can quickly correspond to the progress for unanimously, promoting welding.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that, it can modify to technical scheme of the present invention
Or equivalent replacement, without departing from the spirit and scope of technical solution of the present invention.
Claims (20)
1. a kind of pipe fitting fixing tool, it is characterised in that：The pipe fitting fixing tool have to fixed pipe fitting fixed part and
The extension being connected with fixed part, the axial length of the fixed part are less than the axial length of the extension, the extension
The internal diameter in portion is more than the internal diameter of the fixed part.
2. pipe fitting fixing tool as described in claim 1, it is characterised in that：The pipe fitting fixing tool is designed in two halves formula,
Include two sub- toolings being mutually butted, each sub- tooling integrally formed with a fixed part and an extension,
And the fixed part and extension of two sub- toolings circumferentially form closed circular loop configuration after corresponding to docking.
3. pipe fitting fixing tool as claimed in claim 2, it is characterised in that：The fixed part of the sub- tooling, which has, to be mutually butted
Interface, wherein the fixed part both sides of a sub- tooling are provided through mounting hole along the direction of vertical axial respectively, separately
The interface of one sub- tooling corresponds to the mounting hole and is recessed with fixing groove, and the pipe fitting fixing tool further includes and the mounting hole
With the matched fixing screws of fixing groove.
4. pipe fitting fixing tool as claimed in claim 3, it is characterised in that：The fixed part is identical with the outer diameter of extension,
The both sides of aforementioned wherein one sub- tooling are respectively formed fluted, and the mounting hole is connected with the groove.
5. a kind of pipe fitting welding device, including:
Torch body；
At least one fixture, is arranged on torch body at least side, and the fixture is designed in upper and lower two halves formula, and including phase interworking
The upper fixture body of conjunction and lower clamp body；
It is characterized in that：The pipe fitting welding device further includes the pipe fitting regular worker that setting is matched at least one fixture
Dress, the pipe fitting fixing tool is set as described in claim 1, in use, pipe fitting to be welded is passed through the pipe fitting regular worker
When the fixed part of dress is fixed in pipe fitting fixing tool, by the extension clamping of the fixture and pipe fitting fixing tool coordinate and
Pipe fitting to be welded is fixed.
6. pipe fitting welding device as claimed in claim 5, it is characterised in that：The pipe fitting fixing tool is designed in two halves formula,
Include two sub- toolings being mutually butted, each sub- tooling integrally formed with a fixed part and an extension,
And the fixed part and extension of two sub- toolings circumferentially form closed circular loop configuration, the upper folder after corresponding to docking
The grasping part to match with the extension is formed between specific and lower clamp body.
7. pipe fitting welding device as claimed in claim 6, it is characterised in that：The fixed part of the sub- tooling, which has, to be mutually butted
Interface, wherein the fixed part both sides of a sub- tooling are provided through mounting hole along the direction of vertical axial respectively, separately
The interface of one sub- tooling corresponds to the mounting hole and is recessed with fixing groove, and the pipe fitting fixing tool further includes and the mounting hole
With the matched fixing screws of fixing groove.
8. pipe fitting welding device as claimed in claim 7, it is characterised in that：The fixed part is identical with the outer diameter of extension,
The both sides of aforementioned wherein one sub- tooling are respectively formed fluted, and the mounting hole is connected with the groove.
9. pipe fitting welding device as claimed in claim 5, it is characterised in that：It is set on the extension of the pipe fitting fixing tool
There are the align structures being aligned with the fixture mates.
10. pipe fitting welding device as claimed in claim 5, it is characterised in that：The upper fixture body and lower clamp body wrap respectively
A substrate and fixed clamping piece on the substrate are included, after the upper fixture body and lower clamp body combine, the clamping piece
Centre forms a grasping part；In use, the pipe fitting fixing tool is clamped in grasping part.
11. pipe fitting welding device as claimed in claim 10, it is characterised in that：The clamping piece has holder body and presss from both sides certainly
It holds body outer surface and projects outwardly holding parts, the holding parts are mutually fixed with the substrate, and the grasping part is formed in folder
Between holding main body, the development length of the holder body in an axial direction be more than the substrate thickness and fixed part axial length,
Less than the axial length of the extension.
12. pipe fitting welding device as claimed in claim 5, it is characterised in that：The torch body is automatic circular seam welding pipe tongs,
It includes gear frid, gear cover plate, the rotation gear ring being arranged between gear frid and gear cover plate, is fixed on rotation gear ring
On tungsten needle, driving rotation gear ring drive tungsten needle rotation welding driving device；The torch body both sides are both provided with described
Fixture, the fixture recline set on the outside of gear frid and gear cover plate respectively, the pipe fitting welding device include it is a pair of respectively
With the matched pipe fitting fixing tool of the fixture of torch body both sides, to carry out the connecting welding of a pair of of pipe fitting.
13. a kind of pipe fitting welding equipment, it is characterised in that：The pipe fitting welding equipment is included as arbitrary in claim 5 to 12
Pipe fitting welding device described in one, cooperation pipe fitting welding device are in welding, to pipe fitting, position to be welded carries out back gas shielded
Back of the body protective device.
14. pipe fitting welding equipment as claimed in claim 13, it is characterised in that：The back of the body protective device is included in an axial direction mutually
The air inlet pipe and exhaust pipe of connection, the air inlet pipe and exhaust pipe are radially inside and outside through setting respectively at the position of junction
Several stomatas are equipped with, the air inlet pipe does not connect setting in an axial direction with exhaust pipe in the inside of junction.
15. pipe fitting welding equipment as claimed in claim 14, it is characterised in that：The air inlet pipe and exhaust pipe respectively include steel
Pipeline section, and be mutually butted in an axial direction using lengths of steel pipes, the lengths of steel pipes of the air inlet pipe has what is be connected to each other with the exhaust pipe
First butt end, the lengths of steel pipes of the exhaust pipe have the second butt end being connected to each other with the air inlet pipe, first docking
End and the second butt end are fixed to each other in closed design using groove and protrusion between the two.
16. pipe fitting welding equipment as claimed in claim 15, it is characterised in that：The air inlet pipe and exhaust pipe respectively further comprise
There is the flexible tube section for connector being used to be fixedly connected with the lengths of steel pipes, the back of the body protective device further includes mutually solid with connector
Fixed auxiliary drawstring.
17. pipe fitting welding equipment as claimed in claim 14, it is characterised in that：The back of the body protective device further includes divides in an axial direction
The sealing element not being fixed on the outside of the stomata of the air inlet pipe and exhaust pipe, in use, the sealing element is in arranged at inner side of pipe fitting to be welded
Welding position is sealed in a separate space, the stomata of the air inlet pipe and exhaust pipe is exposed in separate space.
18. pipe fitting welding equipment as claimed in claim 17, it is characterised in that：The sealing element be set in the air inlet pipe and
On exhaust pipe, the pipe fitting welding back of the body protective device is further included to the hold-doun nut of the fixation sealing element, the air inlet pipe
It is equipped with and the matched screw thread of the hold-doun nut with exhaust pipe.
19. pipe fitting welding equipment as claimed in claim 14, it is characterised in that：The back of the body protective device further includes connection setting
Measuring cell on the exhaust pipe.
20. pipe fitting welding equipment as claimed in claim 13, it is characterised in that：The pipe fitting welding equipment further includes to match
It closes pipe fitting welding device and treats the axle center of welded tube part and be supported the pipe fitting support device of adjusting, the pipe fitting support device includes
Pedestal, the pipe fitting being movably arranged on pedestal and to pipe fitting in the horizontal direction with the position of short transverse into
The regulating mechanism that row is adjusted, the pipe fitting have bottom plate, are arranged on bottom plate with the bracket of support tubes, the adjusting machine
Structure is arranged between the pedestal and bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810085461.1A CN108145371B (en) | 2018-01-29 | 2018-01-29 | Pipe fitting welding device and pipe fitting welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810085461.1A CN108145371B (en) | 2018-01-29 | 2018-01-29 | Pipe fitting welding device and pipe fitting welding equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN108145371A true CN108145371A (en) | 2018-06-12 |
| CN108145371B CN108145371B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810085461.1A Active CN108145371B (en) | 2018-01-29 | 2018-01-29 | Pipe fitting welding device and pipe fitting welding equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112475700A (en) * | 2020-10-30 | 2021-03-12 | 南京创科电气有限公司 | Automatic circular seam welding equipment and welding method |
| CN112536553A (en) * | 2021-01-04 | 2021-03-23 | 山东交通学院 | Small-size triangular pipe single-side welding and double-side forming butt welding auxiliary device and construction method |
| CN112589370A (en) * | 2021-01-04 | 2021-04-02 | 山东交通学院 | Butt welding auxiliary device for single-side welding and double-side forming of small-size rectangular pipe and construction method |
| CN112658550A (en) * | 2021-01-04 | 2021-04-16 | 山东潍莱高速铁路有限公司 | Butt welding auxiliary device for single-side welding and double-side forming of small-diameter circular pipe and construction method |
| CN113427096A (en) * | 2021-07-01 | 2021-09-24 | 中国航发贵州黎阳航空动力有限公司 | Tool for sample brazing and sample charging method |
| CN113523493A (en) * | 2020-04-21 | 2021-10-22 | 南京宝地梅山产城发展有限公司 | Welding device |
| CN113579595A (en) * | 2021-07-23 | 2021-11-02 | 张晓琼 | Precise intelligent welding system |
| CN114789260A (en) * | 2022-05-31 | 2022-07-26 | 湖南中车尚驱电气有限公司 | Horizontal welding method for linear motor |
| CN114952143A (en) * | 2021-02-26 | 2022-08-30 | 杨国庆 | Quick positioning and connecting device for oil pipeline of drilling platform |
| CN115013455A (en) * | 2022-05-30 | 2022-09-06 | 上海裴椒汽车部件制造有限公司 | Brake oil pipe joint and forming process thereof |
| CN115338624A (en) * | 2022-08-11 | 2022-11-15 | 武汉弘瑞科技发展有限公司 | Fire-fighting pipeline auxiliary connecting device |
| CN116475645A (en) * | 2023-06-20 | 2023-07-25 | 东鹏博大（天津）实业有限公司 | Welding device and welding method for steel pipe production and processing |
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| CN112589370A (en) * | 2021-01-04 | 2021-04-02 | 山东交通学院 | Butt welding auxiliary device for single-side welding and double-side forming of small-size rectangular pipe and construction method |
| CN112658550A (en) * | 2021-01-04 | 2021-04-16 | 山东潍莱高速铁路有限公司 | Butt welding auxiliary device for single-side welding and double-side forming of small-diameter circular pipe and construction method |
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| CN115013455B (en) * | 2022-05-30 | 2024-05-03 | 上海裴椒汽车部件制造有限公司 | Brake oil pipe joint and forming process thereof |
| CN114789260A (en) * | 2022-05-31 | 2022-07-26 | 湖南中车尚驱电气有限公司 | Horizontal welding method for linear motor |
| CN115338624A (en) * | 2022-08-11 | 2022-11-15 | 武汉弘瑞科技发展有限公司 | Fire-fighting pipeline auxiliary connecting device |
| CN116475645A (en) * | 2023-06-20 | 2023-07-25 | 东鹏博大（天津）实业有限公司 | Welding device and welding method for steel pipe production and processing |
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