CN207857706U - Flange fixing installation for ellipse head prepressing deformation - Google Patents
Flange fixing installation for ellipse head prepressing deformation Download PDFInfo
- Publication number
- CN207857706U CN207857706U CN201721755731.2U CN201721755731U CN207857706U CN 207857706 U CN207857706 U CN 207857706U CN 201721755731 U CN201721755731 U CN 201721755731U CN 207857706 U CN207857706 U CN 207857706U
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- Prior art keywords
- blank holder
- boss
- flange fixing
- lower layer
- upper layer
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Abstract
The utility model discloses a kind of flange fixing installations for ellipse head prepressing deformation, including upper layer blank holder and lower layer's blank holder, single piece type end socket steel plate is set between upper layer blank holder and lower layer's blank holder, the upper surface of lower layer's blank holder is equipped with a circle boss, the lower surface of the upper layer blank holder is equipped with inside and outside two and encloses boss, and the groove to match with the boss of lower layer's blank holder upper surface is equipped between the two circles boss.This flange fixing installation makes steel plate flanging part elder generation prepressing deformation, it is set to generate the die mould resistance of bigger than plane edge-pressing, to reduce the pressure-pad-force of press, reach same flanging effect, the ellipse head of cold pressing compacting about 350*100cm, it is only necessary to which forcing press provides 1600 tons or so of pressure-pad-force, not only reduces the pressure of equipment, and one-pass molding is realized, substantially increase the service life of mold.Current co-pressed 600 more than one piece ellipse head complies fully with the technology requirement of drawing after testing.
Description
Technical field
The utility model belongs to end socket processing technique field more particularly to a kind of flanging for ellipse head prepressing deformation
Device.
Background technology
End socket is a component of container, belongs to one kind of boiler component in pressure vessel, is commonly used in the two of pressure vessel
Connector drum in a welding manner is held, then has the end exactly in pipeline to do a kind of weld-end fittings product for blocking and being used.According to
The difference of geometry, it is several to be divided into spherical, oval, dish-shaped, spherical, conical shell and flat cover etc., wherein spherical, oval
Shape, dish, ball crown type end socket are referred to as convex head again.It is divided into butt welding end socket, socket weld end socket in welding.For various appearances
Device equipment, such as storage tank, heat exchanger, tower, reaction kettle, boiler and separation equipment.
Before this, domestic large scale convex head mainly uses plurality of steel plates component forming assembling welding, there are deflections greatly,
The problems such as size is uneven, weld are end socket product in the future using bringing great hidden danger.In recent years, single piece type prepressing deformation
Technology realizes integral drawing molding, avoids the problems such as size that piecemeal welded bands are come is uneven, weld is unstable.End socket
Cold moudling is all made of double action press progress, the defects of to make end socket not generate bulge, fold in forming process, needs pair
Single piece type steel plate carries out flanging.The molding of ellipse head will generate resistance under very big pressure-pad-force, can just make end socket at
Type does not generate bulge and fold.The flange fixing installation that the country generally uses is plane edge-pressing, and blank holder force specific heat needed for being cold-pressed
It is molded to be higher by very much, therefore cold pressing end socket is very high to the pressure requirements of press, oval the sealing of cold pressing compacting about 350*100cm
Head needs 3000 tons or so of pressure-pad-force, causes equipment cost excessively high, and be unable to one-pass molding, and mold is easy to wear to use the longevity
It orders short.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcomings of to mention in background above technology and defect, is carried
For a kind of flange fixing installation for ellipse head prepressing deformation.
In order to solve the above technical problems, the utility model proposes technical solution be to provide a kind of to be used for ellipse head precompressed
The flange fixing installation of deformation, including upper layer blank holder and lower layer's blank holder, single piece type end socket steel plate are set to upper layer blank holder and lower layer
Between blank holder, the upper surface of lower layer's blank holder is equipped with a circle boss, and the lower surface of the upper layer blank holder is equipped with inside and outside
Two circle boss, described two enclose the groove to match equipped with the boss with lower layer's blank holder upper surface between boss.The utility model
Flange fixing installation the precompressed of steel plate flanging part elder generation is made by the boss and fit depressions of upper layer blank holder and lower layer's blank holder
Deformation makes the die mould resistance that it generates bigger than plane edge-pressing reach same flanging effect to reduce the pressure-pad-force of press,
The ellipse head of cold pressing compacting about 350*100cm, it is only necessary to which forcing press provides 1600 tons or so of pressure-pad-force, not only reduces
The pressure of equipment, and one-pass molding is realized, substantially increase the service life of mold.Co-pressed 600 more than one piece is oval at present
End socket complies fully with the technology requirement of drawing after testing.
Above-mentioned flange fixing installation, it is preferred that in two circle boss of upper layer blank holder lower surface, the boss depth of inner ring
More than the boss depth of outer ring.Be conducive to prevent the rebound of steel plate in the preloading process, the resistance of bigger can be generated, to reduce pressure
The pressure-pad-force of machine.
Preferably, the boss of lower layer's blank holder is close to inner ring side.The precompressed side that boss is formed close to inner ring side
To, be more suitable for ellipse head mold to the technique of mo(u)ld bottom half pressure use.
Preferably, the boss edge of lower layer's blank holder and/or upper layer blank holder is round and smooth and with cambered.Make end socket
Molding was just now more smooth, reduces friction, does not produce fracture tomography or bulge fold.
Preferably, the difference of the projection width of the recess width and lower layer's blank holder of the upper layer blank holder is sealed more than single piece type
The thickness of head steel plate.Keep takeshapes of closure more smooth, does not produce fracture tomography or bulge fold.
Preferably, the depth of the boss and groove is all higher than the thickness of single piece type end socket steel plate.Make takeshapes of closure more
To be smooth, tomography or bulge fold are not produced fracture.
Preferably, the internal diameter of the upper layer blank holder is more than the maximum gauge of end-sealing die.Keep takeshapes of closure more suitable
Profit does not produce fracture tomography or bulge fold.
Preferably, the outermost of the upper layer blank holder is equipped with to the fixed part protruded far from center of circle direction.Fixed part with
Upper layer blank holder is integrally formed, and is convenient for installation, dismounting and the fixation of flange fixing installation.
Preferably, the upper layer blank holder and lower layer's blank holder are respectively upper layer flanging steel ring and lower layer's flanging steel ring.Steel
The hardness of circle is big, is unlikely to deform, and service life is long.
Preferably, the boss and/or non-projection section of lower layer's blank holder upper surface are equipped with the V that inclination angle is less than 10 degree
Shape slot.V-shaped groove can store lubricating oil or lubricant, prevent from filling because lubricating oil can not uniformly bring flanging into during prepressing deformation
Setting causes single piece type end socket steel plate and groove frictional force excessive in groove, while the inclination angle of V-shaped groove is less than 10 degree, does not influence one
The pre-compaction forming of chip end socket steel plate keeps takeshapes of closure just now more smooth, does not produce fracture tomography or bulge fold.
The application method of this flange fixing installation is as follows：
Lower layer's blank holder is hung on four-column hydraulic press, position is mixed up and fixes, is then placed on down single piece type end socket steel plate
It is laminated on flange, center alignment, then upper layer blank holder is hung in into four-column hydraulic press by the fixed part of protrusion and is placed in single piece type
On end socket steel plate, it is bolted the fixed part of upper layer blank holder, ellipse head mould is hung in above the blank holder of upper layer
Tool, each contact surface coat lubricating oil, open four-column hydraulic press, proceed by the cold pressing of ellipse head single piece type.
Compared with prior art, the beneficial effects of the utility model are：
The flange fixing installation of the utility model is made by the boss and fit depressions of upper layer blank holder and lower layer's blank holder
Steel plate flanging part elder generation prepressing deformation makes the die mould resistance that it generates bigger than plane edge-pressing be reached to reduce the pressure-pad-force of press
To same flanging effect, the ellipse head of cold pressing compacting about 350*100cm, it is only necessary to which forcing press provides 1600 tons or so of pressure
Bian Li, not only reduces the pressure of equipment, and realizes one-pass molding, substantially increases the service life of mold.At present altogether
600 more than one piece ellipse heads are suppressed, comply fully with the technology requirement of drawing after testing.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
It can be obtain other attached drawings according to these attached drawings.
Fig. 1 is longitudinal profile structure schematic of the embodiment for the flange fixing installation of ellipse head prepressing deformation.
Fig. 2 is present invention looks up structural representation of the embodiment for the flange fixing installation of ellipse head prepressing deformation.
Fig. 3 is the structural schematic diagram that embodiment is installed for the flange fixing installation of ellipse head prepressing deformation.
Marginal data：1, upper layer blank holder；2, lower layer's blank holder；3, ellipse head mold；4, single piece type end socket steel plate；5、
Fixed part；6, V-shaped groove.
Specific implementation mode
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
It does and more comprehensively, meticulously describes, but the scope of protection of the utility model is not limited to following specific examples.
Unless otherwise defined, all technical terms used hereinafter are generally understood meaning phase with those skilled in the art
Together.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to and limits this practicality newly
The protection domain of type.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the utility model can lead to
Market is crossed to be commercially available or can be prepared by existing method.
Embodiment：
A kind of the utility model is used for the flange fixing installation of ellipse head prepressing deformation, as shown in Figs. 1-3, including upper layer flanging
Circle 1 and lower layer's blank holder 2, single piece type end socket steel plate 4 are set between upper layer blank holder 1 and lower layer's blank holder 2, lower layer's blank holder 2
Upper surface be equipped with one circle boss, the precompressed direction which forms close to inner ring side, boss close to inner ring side is more suitable for
Ellipse head mold is used to the technique of mo(u)ld bottom half pressure；The lower surface of upper layer blank holder 1 is equipped with inside and outside two and encloses boss, the boss of inner ring
Depth is more than the boss depth of outer ring, is conducive to prevent the rebound of steel plate in the preloading process, can generate the resistance of bigger, with drop
The pressure-pad-force of low-pressure machine is equipped with the groove to match with the boss of 2 upper surface of lower layer blank holder between two circle boss.
The flange fixing installation of the utility model, it is preferred that the boss edge of lower layer's blank holder 2 and/or upper layer blank holder 1 is round and smooth
And with cambered, keep takeshapes of closure just now more smooth, reduces friction, do not produce fracture tomography or bulge fold；Upper lamination
The recess width of flange 1 and the difference of the projection width of lower layer's blank holder 2 are more than the thickness of single piece type end socket steel plate, boss and recessed
The depth of slot is all higher than the thickness of single piece type end socket steel plate, and the internal diameter of the upper layer blank holder 1 is more than the maximum of end-sealing die directly
Diameter, keeps takeshapes of closure more smooth, does not produce fracture tomography or bulge fold.Upper layer blank holder 1 and lower layer's blank holder 2 are distinguished
For upper layer flanging steel ring and lower layer's flanging steel ring.
It is furthermore preferred that the outermost of upper layer blank holder 1 be equipped with to far from center of circle direction protrude fixed part 5, fixed part with
Upper layer blank holder is integrally formed, and is convenient for installation, dismounting and the fixation of flange fixing installation.The boss of 2 upper surface of lower layer's blank holder and/or
Non- projection section is equipped with the V-shaped groove 6 that inclination angle is less than 10 degree, and V-shaped groove 6 can store lubricating oil or lubricant, prevent prepressing deformation
Cause single piece type end socket steel plate and groove frictional force excessive because lubricating oil can not uniformly be brought into flange fixing installation groove in the process, together
When V shapes slot 6 inclination angle be less than 10 degree, do not influence the pre-compaction forming of single piece type end socket steel plate, make takeshapes of closure just now more
Smoothly, tomography or bulge fold are not produced fracture.
The application method of this flange fixing installation is as follows：
Lower layer's blank holder 2 is hung on four-column hydraulic press, position is mixed up and fixes, is then placed on single piece type end socket steel plate 4
On lower layer's blank holder 2, center alignment, then upper layer blank holder 1 is hung in into four-column hydraulic press by the fixed part of protrusion and is placed in one
On chip end socket steel plate 4, it is bolted the fixed part of upper layer blank holder 1, ellipse is hung in from the top of upper layer blank holder 1
End-sealing die 3, each contact surface coat lubricating oil, open four-column hydraulic press, proceed by the cold pressing of ellipse head single piece type.
The flange fixing installation of the utility model is made by the boss and fit depressions of upper layer blank holder and lower layer's blank holder
Steel plate flanging part elder generation prepressing deformation makes the die mould resistance that it generates bigger than plane edge-pressing be reached to reduce the pressure-pad-force of press
To same flanging effect, the ellipse head of cold pressing compacting about 350*100cm, it is only necessary to which forcing press provides 1600 tons or so of pressure
Bian Li, not only reduces the pressure of equipment, and realizes one-pass molding, substantially increases the service life of mold.At present altogether
600 more than one piece ellipse heads are suppressed, comply fully with the technology requirement of drawing after testing.
Claims (10)
1. a kind of flange fixing installation for ellipse head prepressing deformation, including upper layer blank holder (1) and lower layer's blank holder (2),
It is characterized in that, the upper surface of lower layer's blank holder (2) is equipped with a circle boss, and the lower surface of the upper layer blank holder (1) is equipped with
Inside and outside two circles boss, described two enclose the groove to match equipped with the boss with lower layer blank holder (2) upper surface between boss.
2. flange fixing installation according to claim 1, which is characterized in that two circles of upper layer blank holder (1) lower surface are convex
In platform, the boss depth of inner ring is more than the boss depth of outer ring.
3. flange fixing installation according to claim 1, which is characterized in that the boss of lower layer's blank holder (2) is close to inner ring
Side.
4. flange fixing installation according to claim 1, which is characterized in that lower layer's blank holder (2) and/or upper layer blank holder
(1) boss edge is round and smooth and with cambered.
5. flange fixing installation according to claim 1, which is characterized in that the recess width of the upper layer blank holder (1) is under
The difference for being laminated the projection width of flange (2) is more than the thickness of single piece type end socket steel plate.
6. flange fixing installation according to claim 1, which is characterized in that the depth of the boss and groove is all higher than single piece type
The thickness of end socket steel plate.
7. flange fixing installation according to claim 1, which is characterized in that the internal diameter of the upper layer blank holder (1) is more than end socket
The maximum gauge of mold.
8. flange fixing installation according to claim 1, which is characterized in that the outermost of the upper layer blank holder (1) be equipped with to
Fixed part (5) far from center of circle direction protrusion.
9. flange fixing installation according to claim 1, which is characterized in that the upper layer blank holder (1) and lower layer's blank holder (2)
Respectively upper layer flanging steel ring and lower layer's flanging steel ring.
10. according to the flange fixing installation described in any one of claim 1-9, which is characterized in that lower layer's blank holder (2) upper table
The boss in face and/or non-projection section are equipped with the V-shaped groove (6) that inclination angle is less than 10 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721755731.2U CN207857706U (en) | 2017-12-15 | 2017-12-15 | Flange fixing installation for ellipse head prepressing deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721755731.2U CN207857706U (en) | 2017-12-15 | 2017-12-15 | Flange fixing installation for ellipse head prepressing deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207857706U true CN207857706U (en) | 2018-09-14 |
Family
ID=63469149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721755731.2U Active CN207857706U (en) | 2017-12-15 | 2017-12-15 | Flange fixing installation for ellipse head prepressing deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207857706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999661A (en) * | 2017-12-15 | 2018-05-08 | 株洲春华实业有限责任公司 | Flange fixing installation for ellipse head prepressing deformation |
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2017
- 2017-12-15 CN CN201721755731.2U patent/CN207857706U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999661A (en) * | 2017-12-15 | 2018-05-08 | 株洲春华实业有限责任公司 | Flange fixing installation for ellipse head prepressing deformation |
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