CN107350677A - Double-blade type assembly welding method - Google Patents
Double-blade type assembly welding method Download PDFInfo
- Publication number
- CN107350677A CN107350677A CN201710775850.2A CN201710775850A CN107350677A CN 107350677 A CN107350677 A CN 107350677A CN 201710775850 A CN201710775850 A CN 201710775850A CN 107350677 A CN107350677 A CN 107350677A
- Authority
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- China
- Prior art keywords
- linear leaf
- blade
- lower ring
- outlet edge
- head
- Prior art date
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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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0247—Driving means
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to welding technology field, discloses Double-blade type assembly welding method, including linear leaf welding and short blade welding, linear leaf welding comprise the following steps：A, lower ring is fixed；B, subpoint is marked, on the negative camber of lower ring, marks the subpoint of position to be welded director's blade, and mark；C, position, linear leaf is positioned to lower ring, linear leaf is coincided with subpoint, the outlet edge of linear leaf and head are pushed against respectively, push against front side and rear side that active force is respectively facing linear leaf；D, detection and adjustment, the sheet head that comes into leaves, the height and diameter dimension of outlet edge and lower ring intersection point are detected, if exceeding setup parameter scope, the position of linear leaf is adjusted, during adjustment, the abutting active force to come into leaves sheet head and outlet edge is adjusted, linear leaf is shifted；E, weld；In short blade welding, repeat the above steps A ~ E.Positioning precision to blade can be improved by the inventive method, improve the assembling quality of the hydraulic turbine.
Description
Technical field
The present invention relates to welding technology field, and in particular to Double-blade type assembly welding method.
Background technology
The runner of the Double-blade type hydraulic turbine includes lower ring, crown and blade, and wherein blade includes linear leaf and short blade,
Therefore it is called " double-valve type ".The blade of the double-valve type hydraulic turbine is in welding process, in order to ensure the service behaviour of the hydraulic turbine, to length
The distributing position of blade and short blade, which has, is strict with.
In the welding technique of existing runner bucket, mode that generally use crown, lower ring, blade integrally assemble, blade leans on
The one end at nearly hydraulic turbine center is water side（That is outlet edge）, one end away from hydraulic turbine center is water inlet end（That is head）, but
It is that shelves are small, runner of narrow space for opening, using such welding gimmick it is difficult to ensure that linear leaf and short blade are connected to phase
The opening position answered, cause linear leaf low with the positioning precision of short blade, influence the assembling quality of the hydraulic turbine.
The content of the invention
The invention is intended to provide Double-blade type assembly welding method, in welding, to improve the positioning precision to blade, water is improved
The assembling quality of turbine.
To reach above-mentioned purpose, basic technology scheme of the invention is as follows：Double-blade type assembly welding method, including linear leaf weldering
Connect and welded with short blade, linear leaf welding comprises the following steps：
A, lower ring is fixed；
B, subpoint is marked, on the negative camber of lower ring, marks the subpoint of position to be welded director's blade, and mark；
C, position, linear leaf is positioned to lower ring, linear leaf is coincided with subpoint, by the outlet edge of linear leaf and head
Push against respectively, push against front side and rear side that active force is respectively facing linear leaf；
D, detection and adjustment, the sheet head that comes into leaves, the height and diameter dimension of outlet edge and lower ring intersection point are detected, if beyond setting ginseng
Number scopes, are adjusted to the position of linear leaf, during adjustment, adjust the abutting active force to come into leaves sheet head and outlet edge, make
Linear leaf shifts；
E, weld；
In short blade welding, repeat the above steps A ~ E.
The principle and advantage of this programme be：1st, by the way of mark projects, the link position progress to blade is tentatively fixed
Position, can be obviously reduced the placing range of blade, be easy to blade being placed directly in the position to be welded of lower ring, compared to direct
It the mode of welding, can effectively avoid welding position that serious the problem of offseting occurs, ensure the accuracy of link position.2nd, use
Incorgruous abutting power is respectively acting on head and the outlet edge of blade, when changing the size of active force, can make blade
Swing, so as to carry out the adjustment of position to blade so that blade is able to drop down onto in the deviation range of setting, improves the processing of blade
Precision, the raising of quality is assembled beneficial to the hydraulic turbine.
Preferably, as an improvement, in step A, lower ring is fixed on a bottom plate, mandrel is installed on bottom plate, is made
Mandrel on the same line, is then fixed on lower ring by the axial line in lower ring centre with mandrel.Mandrel on the one hand can
Lower ring is fixed, prevents lower ring to be subjected to displacement during blade is welded, on the other hand lower ring can be carried out axially
Positioning, it is ensured that the accuracy of detection in step D.
Preferably, as an improvement, in step A, sleeve is socketed on mandrel, is rotatablely connected between sleeve and mandrel,
Outlet edge elongated line tempte is connected on sleeve, head section elongated line tempte is set on the bottom plate on the outside of lower ring, on head
Clip slot is set on section elongated line tempte；In step C, by the outlet edge of linear leaf close to outlet edge elongated line tempte, linear leaf
Outlet edge and outlet edge elongated line tempte between there is gap, and the head of linear leaf is pushed against in clip slot with screw, it is long
There is gap between the head of blade and the side wall of clip slot；In step D, during adjustment, change the length that screw is located in clip slot, together
When turnbarrel the outlet edge of linear leaf is shifted；Short blade welding in, by outlet edge elongated line tempte replace with it is short
The outlet edge short line tempte of blade matching, and head section elongated line tempte is replaced with to the head section matched with short blade
Short line tempte.By turnbarrel outlet edge elongated line tempte can be made to promote the outlet edge of linear leaf to shift, adjust spiral shell
Nail can make screw promote head to be moved, both easy to operation so as to enter line displacement adjustment to blade, in turn ensure that adjustment
Effect, avoid adjustment degree excessive and cause blade that more serious position offset problem occurs.
Preferably, as an improvement, in step B, subpoint P on lower ring of the head of subpoint including linear leaf and
In the outlet edge of linear leaf the subpoint Q on lower ring, step C, during positioning, the head of linear leaf is overlapped with P points, linear leaf
Outlet edge overlapped with Q points.The head of blade and outlet edge are positioned by P points and Q points, it can be ensured that blade fall into
In the range of welding, the welding precision to blade is improved.
Preferably, as an improvement, bottom plate is provided with centring ring, and mandrel is provided with pressing plate, mandrel close to one end of lower ring
It is connected by pressing plate with lower ring.Pressing plate can increase the contact area between mandrel and lower ring, so as to strengthen the fixation to lower ring
Effect.
Preferably, as an improvement, there is blade processing step before step A, during processing, use three axis numerically controlled machine
Carry out blade processing.Leaf head, front and back molded line, outlet edge and groove size processing essence can be ensured by Digit Control Machine Tool
Degree is higher, improves the crudy of blade, it is realized accurate adjustment in joint welding.
Preferably, as an improvement, in step E, welded using spot welding.Spot welding can keep blade welding
The stabilization of position, prevents blade from shifting in journey, improves the welding precision of blade.
Brief description of the drawings
Fig. 1 is the profile of welder in the embodiment of the present invention.
Fig. 2 is the top view of welder in the embodiment of the present invention.
Fig. 3 is the enlarged drawing of local A in Fig. 2.
Embodiment
Below by embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：Lower ring 1, bottom plate 2, mandrel 3, pressing plate 4, sleeve 5, outlet edge molded line model 6,
Head section type line tempte 7, clip slot 8, screw 9, linear leaf 10.
Double-blade type assembly welding method, blade processing is carried out using three axis numerically controlled machine, blade welding using as shown in Figure 1, Figure 2 and
Welder shown in Fig. 3 is common is processed, and the welder includes bottom plate 2, and bottom plate 2 is provided with centring ring, the right part of bottom plate 2
Guide pillar is welded with, long connecting plate is welded with guide pillar, long connecting plate left end is connected with mandrel 3, and the middle part of mandrel 3 is socketed with sleeve 5, sleeve
5 are rotatably connected on mandrel 3, and outlet edge molded line model 6 is installed with bolt on sleeve 5, and the lower end of mandrel 3 is welded with pressing plate
4, support base is welded with the left part of bottom plate 2, head section type line tempte 7 is welded with support base, as local A is put in Fig. 2
Shown in big figure, head section type line tempte 7 is provided with clip slot 8, and the internal thread of clip slot 8 is connected with screw 9.
Double-blade type assembly welding method includes linear leaf welding and short blade welding, when linear leaf welds, outlet edge molded line sample
Plate 6 is the outlet edge elongated line tempte matched with linear leaf 10, and head section type line tempte 7 is the head matched with linear leaf 10
Section elongated line tempte, linear leaf welding include following operating procedure：
A, lower ring is fixed, and lower ring 1 is lifted on bottom plate 2, and the lower surface and the centring ring on bottom plate 2 for making lower ring 1 are affixed, and will be pressed
Plate 4 is pressed on lower ring 1, makes the axial line in the lower centre of ring 1 with mandrel 3 in same vertical lines, and by pressing plate 4 and lower ring
Fixed between 1 with bolt；
B, subpoint is marked, on the negative camber of lower ring 1, marks the subpoint of position to be welded director blade 10, subpoint bag
Subpoint Q of subpoint P and linear leaf 10 of the head of linear leaf 10 on lower ring 1 outlet edge on lower ring 1 is included, and uses sample
Punching marks respectively；
C, position, linear leaf 10 is lifted into positioning to lower ring 1, linear leaf 10 is coincided with subpoint, the head of linear leaf 10
Portion is overlapped with P points, and the head screw 9 of linear leaf 10 is pushed against in clip slot 8, the head of linear leaf 10 and the side wall of clip slot 8
Between there is gap, and the outlet edge of linear leaf 10 is overlapped with Q points, by the outlet edge of linear leaf 10 close to the long molded line of outlet edge
Model, there is gap, screw 9 and outlet edge elongated line tempte point between the outlet edge and outlet edge elongated line tempte of linear leaf 10
Not Wei Yu linear leaf 10 rear side and front side；
D, detection and fine setting, head, the height and diameter dimension of outlet edge and the lower intersection point of ring 1 of linear leaf 10 are detected, if exceeding
Setup parameter scope, the position of linear leaf 10 is finely adjusted, during fine setting, changes the length that screw 9 is located in clip slot 8, simultaneously
Turnbarrel 5 makes the outlet edge of linear leaf 10 shift；
E, weld, welded using spot welding.
In short blade welding, outlet edge elongated line tempte is replaced with to the outlet edge short line sample matched with short blade
Plate, and head section elongated line tempte is replaced with to the head section short line tempte matched with short blade, then repeat above-mentioned
Step A ~ E carries out the welding of short blade.
Measure the opening value between short blade and adjacent linear leaf 10, be sized its satisfaction, finally linear leaf 10,
Burn-on on the outlet edge of short blade support frame, prevent welding process blade from deforming.
After the lap welding method, the height dimension of twayblade and the precision of blade openings size add up to 0.5~1mm
Work precision is high, ensure that the high consistency of linear leaf, short blade head and outlet size, for middle-size and small-size runner, improves
The machining accuracy of the hydraulic turbine, higher assembling quality is reached.
Above-described is only embodiments of the invention, the general knowledge such as known concrete technical scheme and/or characteristic in scheme
Do not describe excessively herein.It should be pointed out that for those skilled in the art, before technical solution of the present invention is not departed from
Put, several modifications and improvements can also be made, these should also be considered as protection scope of the present invention, and these are all without influence sheet
Invent the effect and practical applicability implemented.The scope of protection required by this application should be based on the content of the claims,
The records such as the embodiment in specification can be used for the content for explaining claim.
Claims (7)
1. Double-blade type assembly welding method, including linear leaf welding and short blade welding, it is characterised in that the linear leaf welding bag
Include following steps：
A, lower ring is fixed；
B, subpoint is marked, on the negative camber of lower ring, marks the subpoint of position to be welded director's blade, and mark；
C, position, linear leaf is positioned to lower ring, linear leaf is coincided with subpoint, by the outlet edge of linear leaf and head
Push against respectively, push against front side and rear side that active force is respectively facing linear leaf；
D, detection and adjustment, the sheet head that comes into leaves, the height and diameter dimension of outlet edge and lower ring intersection point are detected, if beyond setting ginseng
Number scopes, are adjusted to the position of linear leaf, during adjustment, adjust the abutting active force to come into leaves sheet head and outlet edge, make
Linear leaf shifts；
E, weld；
In the short blade welding, repeat the above steps A ~ E.
2. Double-blade type assembly welding method according to claim 1, it is characterised in that in the step A, lower ring is fixed on
On one bottom plate, mandrel is installed on bottom plate, make the axial line in lower ring centre with mandrel on the same line, then by mandrel
It is fixed on lower ring.
3. Double-blade type assembly welding method according to claim 2, it is characterised in that in the step A, be socketed on mandrel
Sleeve, it is rotatablely connected between sleeve and mandrel, outlet edge elongated line tempte is connected on sleeve, is set on the bottom plate on the outside of lower ring
Head section elongated line tempte is put, clip slot is set on the section elongated line tempte of head；In the step C, by going out for linear leaf
Waterside has gap between outlet edge elongated line tempte, the outlet edge and outlet edge elongated line tempte of linear leaf, and will be long
The head of blade is pushed against in clip slot with screw, has gap between the head of linear leaf and the side wall of clip slot；The step D
In, during adjustment, change the length that screw is located in clip slot, while turnbarrel makes the outlet edge of linear leaf shift；It is described
In short blade welding, outlet edge elongated line tempte replaces with to the outlet edge short line tempte matched with short blade, and by head
Section elongated line tempte replaces with the head section short line tempte matched with short blade.
4. Double-blade type assembly welding method according to claim 3, it is characterised in that in the step B, subpoint includes length
In subpoint Q, the step C of subpoint P and linear leaf of the head of blade on lower the ring outlet edge on lower ring, positioning
When, the head of linear leaf is overlapped with P points, the outlet edge of linear leaf overlaps with Q points.
5. Double-blade type assembly welding method according to claim 4, it is characterised in that the bottom plate is provided with centring ring, institute
State mandrel and be provided with pressing plate close to one end of lower ring, mandrel is connected by pressing plate with lower ring.
6. Double-blade type assembly welding method according to claim 5, it is characterised in that also have blade to add before the step A
Work step is rapid, during processing, uses three axis numerically controlled machine to carry out blade processing.
7. Double-blade type assembly welding method according to claim 6, it is characterised in that in the step E, carried out using spot welding
Welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775850.2A CN107350677B (en) | 2017-08-31 | 2017-08-31 | Double-blade type assembly welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775850.2A CN107350677B (en) | 2017-08-31 | 2017-08-31 | Double-blade type assembly welding method |
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| CN107350677A true CN107350677A (en) | 2017-11-17 |
| CN107350677B CN107350677B (en) | 2019-04-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113601058A (en) * | 2021-09-03 | 2021-11-05 | 东芝水电设备（杭州）有限公司 | Method for welding long and short blade rotating wheels of pumped storage unit |
| CN113996993A (en) * | 2021-11-23 | 2022-02-01 | 湖南省龙昊重工科技有限公司 | Technological method for preventing welding deformation |
| CN116787061A (en) * | 2021-12-24 | 2023-09-22 | 西安陕鼓动力股份有限公司 | Ternary flow blade assembling device and method for compressor impeller with guide vane structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113601058A (en) * | 2021-09-03 | 2021-11-05 | 东芝水电设备（杭州）有限公司 | Method for welding long and short blade rotating wheels of pumped storage unit |
| CN113996993A (en) * | 2021-11-23 | 2022-02-01 | 湖南省龙昊重工科技有限公司 | Technological method for preventing welding deformation |
| CN113996993B (en) * | 2021-11-23 | 2023-07-21 | 湖南省龙昊重工科技有限公司 | Welding deformation prevention process method |
| CN116787061A (en) * | 2021-12-24 | 2023-09-22 | 西安陕鼓动力股份有限公司 | Ternary flow blade assembling device and method for compressor impeller with guide vane structure |
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| Publication number | Publication date |
|---|---|
| CN107350677B (en) | 2019-04-09 |
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