CN207746527U - A kind of exchanger tubes and tubesheets endoporus overlap welding welding gun head - Google Patents
A kind of exchanger tubes and tubesheets endoporus overlap welding welding gun head Download PDFInfo
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- CN207746527U CN207746527U CN201820026359.XU CN201820026359U CN207746527U CN 207746527 U CN207746527 U CN 207746527U CN 201820026359 U CN201820026359 U CN 201820026359U CN 207746527 U CN207746527 U CN 207746527U
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Abstract
A kind of exchanger tubes and tubesheets endoporus overlap welding welding gun head, belongs to machine-building welding field, has filled up prior art blank.Its structure includes：Copper tungsten electrode press from both sides (1), tungsten electrode (2), copper mesh (3), copper shunt cylinder (4), ceramic mouth (5), copper tungsten electrode hold out against washer (6), copper pipette tips main body (7)；(8) etc. ceramics protection locating piece；Its assembling sequence is：(2) tungsten electrode is inserted into (1) copper tungsten electrode presss from both sides in and is adjusted extension elongation → → (4) copper shunt cylinder being tightened to copper pipette tips main body (7) go up → clamping tungsten electrode (2) →, (5) cotton up to mouth is screwed on copper dividing bushing 4 → (8) ceramics tongs block being inserted in copper pipette tips main body (7) → tightens hex screw and fixes (4) tungsten electrode is folded up copper shunt cylinder in.Application method：By pipette tips be installed to head (15) on, welding gun head is extend into pore, positioning welding position；Adjust the endoporus overlap welding that tube sheet and heat exchanger tube can be realized after welding parameter.The endoporus overlap welding of the exchanger tubes and tubesheets of pore suitable for 19 70mm of diameter.
Description
Technical field
The utility model belongs to machine-building welding field, is related to the endoporus overlap joint welding of tube sheet and heat exchanger tube.
Background technology
The welding structure of exchanger tubes and tubesheets endoporus joint form has antivibration dynamic fatigue strength height, bearing capacity strong, anti-
The advantages that corrosive power is good, quality of weld joint is high, compares endoporus butt welding, and the tubesheet holes of this kind of form is easier to process while more
Material is saved, therefore the heat exchanger of this kind of type of attachment is gradually applied.The exchanger tubes and tubesheets weldering of this kind of type of attachment
Welding gun need to be stretched into welding inside pore when connecing, while also requiring welding gun head alignment welding position and having centainly with welding portion
Angle just can guarantee weld seam complete penetraction and fusion in welding, and pore diameter generally only has 19-70mm, and pipette tips are stretched into pore and are being seen completely not
Realize that complete penetraction and fusion in welding is difficult under to pore inner case, the requirement to welding gun head is very high, is there is no at present dedicated for tube sheet
The lap-welded pipette tips of endoporus.
Invention content
The utility model aim is design, manufacture tube sheet and welding gun head when heat exchange pipe orifice overlap joint welding.
Technical solution is：
Exchanger tubes and tubesheets endoporus overlap welding welding gun head, structure include：Copper tungsten electrode folder 1, tungsten electrode 2, copper mesh 3,
Copper shunt cylinder 4, ceramic mouth 5, copper tungsten electrode hold out against washer 6, copper pipette tips main body 7；Ceramics protection locating piece 8, hex screw
9；The copper pipette tips main body 7 is the carrier of the other parts of entire welding gun head, opens stomata A10 among it；Described
1 top and bottom of copper tungsten electrode folder are respectively provided with a "-" type seam, and both ends are arc-shaped, withstand on copper tungsten electrode fixed supporter respectively
The groove position of circle 6 and copper shunt cylinder 4, tungsten electrode 2 inject in tungsten electrode folder 1；Copper tungsten electrode folder 1 and connection copper pipette tips main body 7
It is fixed together by copper shunt cylinder 4；Copper pipette tips main body 7 has the tubular slot of installation copper shunt cylinder 4, and inclined-plane is
45°；Copper mesh 3 is fixed on copper shunt cylinder 4 and puts on；There are one the keyway of 2mm, keys at the intermediate position of 4 screw thread of copper shunt cylinder
Slot upper end is evenly distributed with the venthole B11 five of φ 1.0mm, lower part is evenly distributed with the venthole C12 tetra- of φ 1.5mm；Ceramic mouth 5 is screwed in
On copper shunt cylinder 4；There are the graduated scale of 38mm, the hex screw 9 of ceramics tongs block 8 in the most long face of ceramics tongs block 8
It is fixed in copper pipette tips main body 7.
The assembling sequence of welding gun head is：By copper tungsten electrode hold out against washer 6 be put into 7 fixed position of copper pipette tips main body →
Tungsten electrode 2 is inserted into copper tungsten electrode folder 1 and adjusts extension elongation → by the tungsten electrode installed and tungsten electrode and is folded up into copper shunt cylinder 4
In → copper shunt cylinder 4 is tightened in copper pipette tips main body 7, leading in pipette tips main body 7 can be directed at by making its keyway position just
Stomata A10 → clamping tungsten electrode 2 ensures that it is placed to the fixation of copper dividing bushing 4 horizontal by 45° angle → by copper mesh 3
Tighten two in position → cotton up to mouth 5 is screwed on copper dividing bushing 4 → ceramics tongs block 8 is inserted in copper pipette tips main body 7 →
Ceramics tongs block 8 is fixed in copper pipette tips main body 7 by fastening hex screw.
The application method of exchanger tubes and tubesheets endoporus overlap welding welding gun head：The length of tungsten electrode stretching is adjusted, then will
Assembled pipette tips are installed on head 15, and welding gun head is extend into pore；Pipette tips are with workpiece at a distance from short transverse
It is positioned by the diameter of ceramics tongs block 8；Pipette tips pass through the graduated scale on ceramics tongs block 8 with workpiece distance in the horizontal direction
It realizes, welding position can be found accurately by positioning；Adjust the endoporus that tube sheet 14 and heat exchanger tube 13 can be realized after welding parameter
Overlap welding.
The utility model has the following advantages
1, the utility model it is compact-sized, it can be achieved that exchanger tubes and tubesheets endoporus overlap welding.
2, the utility model gas shield is uniform, and angle of the tungsten electrode at a distance from workpiece between controllable, tungsten electrode and workpiece can be with
It realizes, endoporus overlap welding complete penetraction and fusion in welding may be implemented, welding quality can be guaranteed.
3, the utility model is easy to assemble, and maintaining is simple, and it is convenient to replace tungsten electrode.
4, it positions simple and practicable when the utility model welds, working efficiency can be improved.
5, the utility model is simple to manufacture, and manufacturing cost is low.
Description of the drawings
Fig. 1 is general assembly schematic diagram；
Fig. 2 is fundamental diagram；
Fig. 3 is 7 schematic diagram of copper pipette tips main body；
Fig. 4 is 4 schematic diagram of copper shunt cylinder；
Fig. 5 is 8 schematic diagram of ceramics tongs block；
Fig. 6 is that 3 copper tungsten electrode of copper mesh presss from both sides 1 schematic diagram；
Fig. 7 is 5 schematic diagram of cotton up to mouth；
Fig. 8 is that copper tungsten electrode holds out against 6 schematic diagram of washer；
Fig. 9 is 3 schematic diagram of copper mesh；
Figure 10 is hex screw schematic diagram；
Figure 11 is tungsten electrode schematic diagram
Wherein：1-copper tungsten electrode folder, 2-tungsten electrodes, 3-copper mesh, 4-copper shunt cylinders, 5-ceramic mouths, 6-coppers
Tungsten electrode holds out against washer, 7-copper pipette tips main bodys, 8-ceramics tongs blocks, 9-hex screws, 10-venthole A, 11-ventholes
B, 12-venthole C, 13-heat exchanger tubes, 14-tube sheets, 15-heads.
Specific implementation mode
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, exchanger tubes and tubesheets endoporus overlap welding welding gun head, structure include：Copper tungsten electrode folder 1, tungsten electrode
2, copper mesh 3, copper shunt cylinder 4, ceramic mouth 5, copper tungsten electrode hold out against washer 6, copper pipette tips main body 7；Ceramics protection locating piece
8, hex screw 9.Above-mentioned copper pipette tips main body 7 is the carrier of the other parts of entire welding gun head, by other parts by suitable
Sequence is assembled into copper pipette tips main body 7, and the function of welding gun head, copper pipette tips master are realized by the mutual cooperation of these parts
The cylinder slot inclined-plane that body 7 is connect with copper shunt cylinder 4 is 45 °.Wherein tungsten electrode 2 rises in the welding process occurs arc-melting and penetrates
The effect of workpiece；1 top and bottom of copper tungsten electrode folder are respectively provided with a "-" type seam, and both ends are arc-shaped, withstand on copper respectively
Tungsten electrode processed holds out against the groove position of washer 6 and copper shunt cylinder 4, by tightening copper shunt cylinder 4, you can it is long to reach adjustment tungsten electrode
The effect of short and fixed tungsten electrode；There are one the keyway of 2mm, keyway upper end is evenly distributed with φ at the intermediate position of 4 screw thread of copper shunt cylinder
The venthole B11 five of 1.0mm, lower part are evenly distributed with the venthole C12 tetra- of φ 1.5mm；After tightening copper shunt cylinder 4, keyway portion
Position can just be directed at the venthole A10 in pipette tips main body 7, and protective gas enters copper shunt cylinder 4 by venthole A10, then leads to
The venthole for crossing copper shunt cylinder 4 once shunts the protection gas being passed through, while copper shunt cylinder 4 also acts as positioning copper
The effect of tungsten electrode folder 1 and connection copper pipette tips main body 7 and copper tungsten electrode folder 1；Copper mesh 3 carries out second diffluence to protective gas,
Protective gas is evenly distributed on around tungsten electrode 2, to weld seam gold in the stabilization and welding process to ensure welding process
The good protection of category；Ceramic mouth 5, which is screwed on copper shunt cylinder 4, plays heat-insulated and insulating effect, and copper in welding process is avoided to shunt
Cylinder 4 overheats, while preventing copper shunt cylinder 4 from being contacted with workpiece and generating electrical arc erosion copper shunt cylinder 4；Ceramics tongs block 8 rises
Protect copper pipette tips main body 7 and positioning action；On the one hand prevent copper pipette tips main body 7 from contacting generation with workpiece in the welding process
On the other hand electrical arc erosion copper pipette tips main body 7 can ensure that pipette tips are played with workpiece at a distance from height and horizontal direction and determine
Position effect, due to being blind weldering, pipette tips also need locating piece to complete in the horizontal direction position of workpiece；Pipette tips are with workpiece in height
The distance in direction is positioned by the diameter of ceramics tongs block 8；Pipette tips and workpiece distance in the horizontal direction are to pass through ceramics
What the graduated scale on locating piece 8 was realized, there is the graduated scale of 38mm in ceramics tongs block most long face, welding can be found accurately by positioning
Position；Tungsten electrode is directed at weld seam, while being also prevented from welding process because tungsten electrode and workpiece influence weldering apart from height unevenness
The continuity and welding quality of termination process；Hex screw 9 plays fixed ceramics tongs block 8.
As shown in Figure 1, the assembling sequence of exchanger tubes and tubesheets endoporus overlap welding welding gun head is：By copper tungsten electrode fixed supporter
Circle 6 be put into 7 fixed position of copper pipette tips main body → tungsten electrode 2 be inserted into copper tungsten electrode folder 1 and adjust extension elongation → general
The tungsten electrode and tungsten electrode installed folds up in copper shunt cylinder 4 → copper shunt cylinder 4 is tightened in copper pipette tips main body 7, makes it
Keyway position can just be directed at venthole A10 → clamping tungsten electrode 2 in pipette tips main body 7, ensure it horizontal by 45° angle → general
Copper mesh 3, which is placed to the fixed position of copper dividing bushing 4 → cotton up to mouth 5 is screwed on copper dividing bushing 4 →, determines ceramics
Position block 8 is inserted in two fastening hex screws of copper pipette tips main body 7 → tighten and ceramics tongs block 8 is fixed on copper pipette tips main body 7
On.
As shown in Fig. 2, the application method of exchanger tubes and tubesheets endoporus overlap welding welding gun head：Welding gun head is assembled, is adjusted
Pipette tips, are then installed on head 15, welding gun head are extend into pore by the length that whole good tungsten electrode stretches out；Pipette tips and workpiece
It is positioned by the diameter of ceramics tongs block 8 in the distance of short transverse；Pipette tips pass through ceramics with workpiece distance in the horizontal direction
Graduated scale on locating piece 8 is realized, welding position can be found accurately by positioning；Tube sheet 14 can be realized after adjusting welding parameter
With the endoporus overlap welding of heat exchanger tube 13.
For diameter 19-70mm pores, the utility model can realize the endoporus overlap welding of exchanger tubes and tubesheets, welding quality
Ensure, work efficiency is high.
Claims (1)
1. exchanger tubes and tubesheets endoporus overlap welding welding gun head, it is characterized in that：Its structure include copper tungsten electrode folder (1), tungsten electrode (2),
Copper mesh (3), copper shunt cylinder (4), ceramic mouth (5), copper tungsten electrode hold out against washer (6), copper pipette tips main body (7)；Ceramics protection positioning
Block (8), hex screw (9)；(7) the copper pipette tips main body is the carrier of the other parts of entire welding gun head, open-minded among it
Stomata A is (10)；(1) top and bottom are respectively provided with a "-" type seam to the copper tungsten electrode folder, and both ends are arc-shaped, are pushed up respectively
Groove position of the washer (6) with copper shunt cylinder (4) is held out against in copper tungsten electrode, (2) (1) tungsten electrode injects tungsten electrode folder in；Copper tungsten electrode presss from both sides
(1) (7) (4) it is fixed together by copper shunt cylinder with connection copper pipette tips main body；(7) copper pipette tips main body has installation copper
The tubular slot of shunt cylinder (4), inclined-plane are 45 °；(3) copper mesh is fixed on copper shunt cylinder and (4) puts on；Copper shunt cylinder (4) screw thread
Intermediate position is there are one the keyway of 2mm, and keyway upper end is evenly distributed with the venthole B (11) five of φ 1.0mm, lower part is evenly distributed with φ 1.5mm
Venthole C (12) four；Ceramic mouth be (5) screwed in copper shunt cylinder (4) on；(8) the described ceramics protection locating piece has in most long face
The graduated scale of 38mm, ceramics protection locating piece be (8) (9) fixed on hex screw copper pipette tips main body (7) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820026359.XU CN207746527U (en) | 2018-01-08 | 2018-01-08 | A kind of exchanger tubes and tubesheets endoporus overlap welding welding gun head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820026359.XU CN207746527U (en) | 2018-01-08 | 2018-01-08 | A kind of exchanger tubes and tubesheets endoporus overlap welding welding gun head |
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| Publication Number | Publication Date |
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| CN207746527U true CN207746527U (en) | 2018-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820026359.XU Active CN207746527U (en) | 2018-01-08 | 2018-01-08 | A kind of exchanger tubes and tubesheets endoporus overlap welding welding gun head |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940251A (en) * | 2019-05-08 | 2019-06-28 | 天津中车唐车轨道车辆有限公司 | A kind of pipette tips suitable for T connector TIG tack welding |
| CN110014208A (en) * | 2018-01-08 | 2019-07-16 | 兰州兰石重型装备股份有限公司 | A kind of exchanger tubes and tubesheets inner hole overlap welding welding gun head and its assembling application method |
| CN110681945A (en) * | 2019-09-10 | 2020-01-14 | 华中科技大学 | Welding height control method and device for full-automatic tube plate welding |
-
2018
- 2018-01-08 CN CN201820026359.XU patent/CN207746527U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014208A (en) * | 2018-01-08 | 2019-07-16 | 兰州兰石重型装备股份有限公司 | A kind of exchanger tubes and tubesheets inner hole overlap welding welding gun head and its assembling application method |
| CN109940251A (en) * | 2019-05-08 | 2019-06-28 | 天津中车唐车轨道车辆有限公司 | A kind of pipette tips suitable for T connector TIG tack welding |
| CN110681945A (en) * | 2019-09-10 | 2020-01-14 | 华中科技大学 | Welding height control method and device for full-automatic tube plate welding |
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