CN106270398A - A kind of welding positioning method of turbine blade arbor support - Google Patents
A kind of welding positioning method of turbine blade arbor support Download PDFInfo
- Publication number
- CN106270398A CN106270398A CN201610759434.9A CN201610759434A CN106270398A CN 106270398 A CN106270398 A CN 106270398A CN 201610759434 A CN201610759434 A CN 201610759434A CN 106270398 A CN106270398 A CN 106270398A
- Authority
- CN
- China
- Prior art keywords
- core
- pipe fitting
- arbor
- welding
- steel plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/108—Installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/103—Multipart cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
Abstract
The welding positioning method of a kind of turbine blade arbor support in the present invention relates to casting technology field, one block of steel plate is prepared as jig before welding, core is vertically arranged conjunction pipe fitting with steel plate, on steel plate, each of labelling closes the upright projection position on steel plate of pipe fitting in advance, and it is welded and fixed one for vertical socket the projection of conjunction pipe fitting, each core boss corresponding for conjunction pipe fitting is worked out respectively is identically numbered with each core；Then, weld each arbor support one by one, on platform, first vertically fix each conjunction pipe fitting of this core during welding, on the basis of conjunction pipe fitting, then weld other part of arbor support；After core welding terminates, the relative position of the correction each parts of arbor support, and ensure vertical with steel plate for conjunction pipe fitting, then sealing-off arbor support and the fixed position of steel plate.This welding positioning method, can demonstrate,prove the core protecting each correspondence component is coaxially relative, reduce reclamation work amount.
Description
Technical field
The present invention relates to the Manufacturing Techniques field of casting sand core, particularly to a kind of turbine blade arbor support
Welding positioning method.
Background technology
Large-scale mixed turbine blade is the sculptured surface structure of complexity, as it is shown in figure 1, be divided into facade 1, facade
22, outlet edge 3 and water inlet limit 4, as a example by certain turbine blade, it is 5251mm along the projection size specification in facade direction
× 3970mm, the angularity of facade is 1700mm.In prior art, the sculpting method that this kind of foundry goods is conventional is cored-up mould, i.e.
Make core box, quicksand moulding, core docking combination, quicksand moulding, cast.Further, the moulding that lies low, the side of upright cast are used
Formula.Owing to during cast, two pieces of cores vertically dock, it is impossible to rely on core self gravitation to compress die joint, there is molten steel from die joint
The risk overflowed, therefore need to weld in the sand core rod that core is corresponding in advance two corresponding conjunction pipe fitting, logical with one
Long bolt passes from pipe fitting center, by two pieces of corresponding cores closing, and the intensity of die cavity during to strengthen casting pouring.
Above-mentioned turbine blade foundry goods is vertically highly close to 6000mm, as in figure 2 it is shown, at least need in design when core is arranged
In lower 3 to closing a core, every couple of core height about 2000mm, a size of 5000mm × 2500mm after the docking of the every pair of core ×
2500mm, needs to arrange some to be coaxial docking, seaming element is strong to increase core docking in the arbor that the every pair of core is corresponding
Degree, runs through component with screw rod to strain the core of two correspondences before core assembly pouring.Start from the bottom core during cored-up mould
Crossing screw rod closing in square steel, fasten with pad and nut, around place sandbox, the support top such as core and sandbox limit chill is arranged
Execute, prevent cast from rising case, quicksand, repeat above step and place upper two-layer core, moulding completes.
In actual production, Shortcomings in this process program, this core assembling technology requires to weld in advance when welding arbor
Good each is closed square steel, and during quicksand docking, dimensional discrepancy after component docking not can exceed that certain scope, and otherwise docking can be sent out
Raw dislocation, causes the screw rod cannot be through.And repair amount of doing over again is big, need to manually smash to pieces the sand closing pipe fitting position, cutting
Fall to offset arbor, again weld, closing.This repair workload strengthen, be delayed the production cycle, and repair after close position strong
Degree reduces, and rise during cast case increased risk.
Summary of the invention
The problem that when the present invention is directed to turbine blade cored-up mould in prior art, arbor easily misplaces component, it is provided that
The welding positioning method of a kind of turbine blade arbor support, in order to start core component from the arbor rack making stage
Arbor support relatively is accurately positioned, and prevents core assembly when closing, component being misplaced.
The object of the present invention is achieved like this, the welding positioning method of a kind of turbine blade arbor support, described water
The foundry goods of turbine blade uses the mode of upright cast, and the sand mold of described foundry goods is respectively provided with front core and rear sand along facade both sides
Core, if described front core and rear core arrange dried layer, the front core of identical layer and rear sand along the upright short transverse poured into a mould layering
Some arbors running through corresponding core it are respectively provided with conjunction pipe fitting, with the arbor of layer coaxially corresponding for conjunction pipe fitting and pass through between core
Closing tie-rod, the arbor of each core welds location by the following method:
The first step, by each core of foundry goods serial number respectively；
Second step, prepares one block of steel plate and makes and the platform of arbor welding for core type, during arbor welding, and described conjunction pipe fitting
Being vertically arranged with steel plate, according to closing pipe fitting along the lateral distributing position of core, on steel plate, each of labelling closes pipe fitting in advance
Upright projection position, and be welded and fixed thickness be 15 20mm for vertical socket closing the projection of pipe fitting, described projection
Overall dimensions and the internal chamber wall matching size conjunction pipe fitting, the boss closing pipe fitting corresponding is worked out respectively and being walked by each core
The core of rapid one is identically numbered；
3rd step, by core number order, welds the arbor support of each core one by one, when welding each arbor support, first welds
Fixing each the conjunction pipe fitting corresponding with this numbering core, and ensure vertical with plate platform for conjunction pipe fitting, then with conjunction pipe fitting
On the basis of weld arbor support other pipe fitting；
4th step, the welding of arbor support terminates, the relative position of the correction each parts of arbor support, and ensures conjunction pipe fitting and steel plate
Being in plumbness, then the welding position of pipe fitting projection corresponding with on steel plate is closed in each of sealing-off, props up dismantling the arbor welded
Frame.
5th step, repeats step 3 and step 4, has directly been welded by the arbor support of each numbering core.
The arbor support welding positioning method of the present invention, with core side as positioning reference plane, and uses flatness good
Steel plate, as the reference platform of welding, welds the stage at arbor bracket assembled, for the fixing direction component and position, marks in advance
Know component projected position in datum level, fixing the boss of component being provided on the projected position of component, with
Ensure the positional precision in component welding process.It addition, in the present invention, by a conjunction of each core of number-mark on platform
The position of part, completes the welding location of all sand core rods in a foundry goods with realization identical platform.
For adaptation core side elevation not in same plane needs, described step 3, when outside the core that arbor support is corresponding
When side is non-same plane, described conjunction pipe fitting is fixedly connected with secondary segment relative to one end of core lateral surface makes a conjunction pipe fitting
Outer face is in the same plane, and when welding is conjunction pipe fitting, this pipe fitting is by convex corresponding with surface of steel plate in secondary segment end
Platform is welded and fixed；After dismantling the arbor support welded in described step 4, excision is accordingly the secondary segment closing pipe fitting.
Preferred as the present invention, the steel plate thickness in described step 2 is less than 2mm more than 5mm, flatness.
Preferred as the present invention, described conjunction pipe fitting is square steel tube or round steel pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of turbine blade.
Fig. 2 is the core core assembly schematic diagram of turbine blade.
Fig. 3 is plate platform schematic diagram.
Fig. 4 is fixing the schematic diagram closing pipe fitting in plate platform.
Fig. 5 is with closing pipe fitting for reference to the schematic diagram continuing welding arbor support in plate platform.
Fig. 6 is the schematic diagram of the arbor support of postwelding.
Detailed description of the invention
2 Fig. 6 describe the welding positioning method of turbine blade arbor support of the present invention in detail below in conjunction with the accompanying drawings, as
Shown in Fig. 2, the foundry goods of turbine blade uses the mode of upright cast, and the sand mold of this foundry goods is respectively provided with front sand along facade both sides
Core and rear core, front core and rear core are set to upper strata core 5, middle level core sand 6 and along the short transverse layering of upright cast
Lower floor's core 7, is respectively provided with some arbors of corresponding core that runs through conjunction pipe fitting 10 between front core and the rear core of identical layer,
And passing through closing a tie-rod coaxial for conjunction pipe fitting 10 correspondence with the arbor of layer, the arbor of each core welds fixed by the following method
Position:
The first step, by each core of foundry goods serial number respectively；
Second step, prepares one block of steel plate 8 and makes and the platform of arbor welding for core type, for ensureing the flatness of platform, and should
Steel plate thickness typically chooses the carbon steel sheet more than 5mm, and the flatness of steel plate is less than 2mm；During arbor welding, will close pipe fitting 10 with
Steel plate 8 is vertically arranged, and draws materials for convenience, can use square steel tube or round steel pipe closing pipe fitting；According to conjunction pipe fitting 10 along core
Lateral distributing position, on steel plate 8, each of labelling closes the upright projection position of pipe fitting 10 in advance, and is welded and fixed thickness and is
15 20mm are used for vertical socket the projection 9 of conjunction pipe fitting, the overall dimensions of this projection 9 and the internal chamber wall chi conjunction pipe fitting 10
Very little bumping square or the round bump of matching, the boss 9 closing pipe fitting 10 correspondence is worked out and step one respectively by each core
Core is identically numbered；
3rd step, by core number order, welds the arbor support of each core one by one, when welding each arbor support, first welds
Fixing each the conjunction pipe fitting 10 corresponding with this numbering core, as shown in Figure 4, and ensures conjunction pipe fitting 10 vertical with steel plate 8, then
With closing pipe fitting 10 other pipe fitting for basis reference welding arbor support 11；(refer to relatively pour into a mould shape for adapting to core side elevation
The outer side elevation of core during state) when same plane, the length closing pipe fitting 10 can not directly not extended and is fixed in plate platform,
The one end closing the relative core lateral surface of pipe fitting 10 is fixedly connected with secondary segment 10A, and this secondary segment 10A makes each conjunction pipe fitting outer end
Face is in the same plane to facilitate the positioning welding in plate platform when welding, when welding is conjunction pipe fitting 10, and this pipe
Part is welded and fixed by the boss that secondary segment end is corresponding with surface of steel plate；Described step 4 is dismantled the arbor support welded
After, excision is accordingly the secondary segment closing pipe fitting；
4th step, arbor support 11 welding terminates, the relative position of the correction each parts of arbor support 11, and ensures conjunction pipe fitting 10
Being in plumbness with steel plate 8, then the welding position of pipe fitting projection corresponding with on steel plate is closed in each of sealing-off, welds to dismantle
Arbor support, then excise the secondary segment 10A closing pipe fitting, complete the welding of the arbor support 11 of a core；
5th step, repeats step 3 and step 4, has directly been welded by the arbor support of each numbering core.
The arbor support welding positioning method of the present invention, with core side as positioning reference plane, and uses flatness good
Steel plate is as the reference platform of welding, in the arbor support 11 assembly welding stage, for fixing the direction component and position, in advance
Identify component projected position in datum level, fixing the boss of component being provided on the projected position of component,
To ensure the positional precision in component welding process.It addition, in the present invention, by the handle of each core of number-mark on platform
The position of component, completes the welding location of all sand core rods in a foundry goods with realization identical platform.
Claims (5)
1. a welding positioning method for turbine blade arbor support, the foundry goods of described turbine blade uses upright cast
Mode, the sand mold of described foundry goods is respectively provided with front core and rear core, described front core and rear core along upright along facade both sides
If the short transverse layering of cast arranges dried layer, it is respectively provided with between front core and the rear core of identical layer and some runs through corresponding sand
The arbor of core, conjunction pipe fitting, conjunction pipe fitting coaxially correspondence and passes through closing a tie-rod with the arbor of layer, it is characterised in that each sand
The arbor of core welds location by the following method:
The first step, by each core of foundry goods serial number respectively；
Second step, prepares one block of steel plate and makes and the platform of arbor welding for core type, during arbor welding, and described conjunction pipe fitting
Being vertically arranged with steel plate, according to closing pipe fitting along the lateral distributing position of core, on steel plate, each of labelling closes pipe fitting in advance
Upright projection position, and be welded and fixed thickness be 15 20mm for vertical socket closing the projection of pipe fitting, described projection
Overall dimensions and the internal chamber wall matching size conjunction pipe fitting, the boss closing pipe fitting corresponding is worked out respectively and being walked by each core
The core of rapid one is identically numbered；
3rd step, by core number order, welds the arbor support of each core one by one, when welding each arbor support, first welds
Fixing each the conjunction pipe fitting corresponding with this numbering core, and ensure vertical with plate platform for conjunction pipe fitting, then with conjunction pipe fitting
On the basis of weld arbor support other pipe fitting；
4th step, the welding of arbor support terminates, the relative position of the correction each parts of arbor support, and ensures conjunction pipe fitting and steel plate
Being in plumbness, then the welding position of pipe fitting projection corresponding with on steel plate is closed in each of sealing-off, props up dismantling the arbor welded
Frame.
2. the 5th step, repeats step 3 and step 4, has directly been welded by the arbor support of each numbering core.
The welding positioning method of turbine blade arbor support the most according to claim 1, it is characterised in that described step
In three, when the core lateral surface that arbor support is corresponding is non-same plane, described is closed pipe fitting relative to the one of core lateral surface
End is fixedly connected with secondary segment to be made in the same plane for conjunction pipe fitting outer face, and when welding is conjunction pipe fitting, this conjunction pipe fitting leads to
The boss crossing secondary segment end corresponding with surface of steel plate is welded and fixed；After described step 4 is dismantled the arbor support welded, cut
Except accordingly the secondary segment closing pipe fitting.
Turbine blade arbor welding positioning method the most according to claim 1, it is characterised in that in described step 2
Steel plate thickness is more than 5mm, and flatness is less than 2mm.
The welding positioning method of turbine blade arbor support the most according to claim 1, it is characterised in that described conjunction
Pipe fitting is square steel tube or round steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759434.9A CN106270398B (en) | 2016-08-30 | 2016-08-30 | A kind of welding positioning method of turbine blade arbor holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759434.9A CN106270398B (en) | 2016-08-30 | 2016-08-30 | A kind of welding positioning method of turbine blade arbor holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106270398A true CN106270398A (en) | 2017-01-04 |
| CN106270398B CN106270398B (en) | 2018-11-06 |
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ID=57674908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610759434.9A Active CN106270398B (en) | 2016-08-30 | 2016-08-30 | A kind of welding positioning method of turbine blade arbor holder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745080A (en) * | 2017-10-09 | 2018-03-02 | 铜陵安东铸钢有限责任公司 | A kind of laying method of running gate system |
| CN110142379A (en) * | 2019-04-18 | 2019-08-20 | 共享铸钢有限公司 | A kind of profile-followed arbor structure of the high intensity of blade of large-sized water turbine sand core |
| CN111922282A (en) * | 2020-07-31 | 2020-11-13 | 共享智能装备有限公司 | 3D printing combined sand mold |
| CN114603285A (en) * | 2022-04-24 | 2022-06-10 | 佛山市诺腾精密科技有限公司 | Automatic production equipment for automobile hydraulic torque converter and coupler parts |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745080A (en) * | 2017-10-09 | 2018-03-02 | 铜陵安东铸钢有限责任公司 | A kind of laying method of running gate system |
| CN110142379A (en) * | 2019-04-18 | 2019-08-20 | 共享铸钢有限公司 | A kind of profile-followed arbor structure of the high intensity of blade of large-sized water turbine sand core |
| CN111922282A (en) * | 2020-07-31 | 2020-11-13 | 共享智能装备有限公司 | 3D printing combined sand mold |
| CN114603285A (en) * | 2022-04-24 | 2022-06-10 | 佛山市诺腾精密科技有限公司 | Automatic production equipment for automobile hydraulic torque converter and coupler parts |
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| Publication number | Publication date |
|---|---|
| CN106270398B (en) | 2018-11-06 |
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