CN105268891A - Welding neck flange precision forging insert die - Google Patents

Welding neck flange precision forging insert die Download PDF

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Publication number
CN105268891A
CN105268891A CN201410291007.3A CN201410291007A CN105268891A CN 105268891 A CN105268891 A CN 105268891A CN 201410291007 A CN201410291007 A CN 201410291007A CN 105268891 A CN105268891 A CN 105268891A
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China
Prior art keywords
boss
groove
folding platform
combination die
flange
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CN201410291007.3A
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Chinese (zh)
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CN105268891B (en
Inventor
闫永红
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SHANXI ESTHER NAICI FORGING Co Ltd
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SHANXI ESTHER NAICI FORGING Co Ltd
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Abstract

The invention provides a welding neck flange insert die, comprising an upper die and a lower die. The middle of a surface of the upper die is provided with a first boss whose section is in a trapezoid shape. The periphery of the lower edges of the first boss is provided with circular ring shaped first grooves. The periphery of the outer edges of first grooves is provided with circular ring shaped first folding tables. The middle of a surface of the lower die is corresponding to the first boss, and is provided with a second boss whose section is in a trapezoid shape. The periphery of lower edges of the first boss is provided with circular ring shaped second grooves. The outer edges of the second grooves are provided with circular ring shaped second folding tables. The outer edges of the second folding tables are provided with circular ring shaped third folding tables. Through improving the die, combined forging of a workblank flange is zero, and utilization rate of raw materials is improved by 40%, and is improved by 40% compared with the process in the prior art. Produced flange workpiece is high in precision, and standard in dimensions. The workpiece can be processed directly on a numerical control machine tool. The workblanks can be exported directly, and quality meets international standards.

Description

Hubbed flange finish forge combination die
Technical field
The present invention relates to mould applications, refer to a kind of hubbed flange finish forge combination die especially.
Background technology
Hubbed flange is made up of the portion of coiling and neck, forging industry is for the little hubbed flange of specification, its neck of flange blank that the mould of current employing is produced is solid, remove solid through machined post processing again, cause utilization rate of raw materials low, (what namely post processing was removed is solid) stock is large in cover forging.
Summary of the invention
The present invention proposes a kind of hubbed flange finish forge combination die, solves utilization rate of raw materials in prior art low, the problem that cover forging stock is large.
Technical scheme of the present invention is achieved in that
A kind of hubbed flange combination die, comprising: patrix, and it is the first trapezoidal boss that the centre of its one side is provided with section, and the upper surface of described first boss is higher than the surface of described patrix; Surrounding along the lower edge of described first boss offers the first groove of annular; Surrounding along the outer edge of described first groove is provided with the first folding platform of annular; With, counterdie, the centre of its one side is corresponding with described first boss, being provided with section is the second trapezoidal boss, the upper surface of described second boss is lower than the surface of described counterdie, and the surrounding along the lower edge of described second boss offers the second groove of annular, and the outer edge along described second groove is provided with the second folding platform of annular, the external diameter of described first groove is identical with the external diameter of described second folding platform, and the outer edge along described second folding platform is provided with the 3rd folding platform of annular; Described patrix and described counterdie fasten the cavity forming flange blank place: the cavity that described first groove and described second groove are formed corresponds to the neck of described flange; The cavity that described first groove and described second folding platform are formed corresponds to the dish portion of described flange; The cavity that described first folding platform and described 3rd folding platform are formed, for holding clout; Distance is left between described first boss and described second boss.
Further: the profile of described patrix and described counterdie is cylindrical.
Further: along the surrounding of the lower edge of described first boss, described first groove offers the 3rd groove of annular, and described 3rd groove is corresponding with the RF face of described flange.
Further: the distance between described first boss and described second boss is 3 ~ 10mm.
Further: the distance between described first boss and described second boss is 5mm.
Further: respectively on described first folding platform and described 3rd folding platform, to offer the 4th groove and the 5th groove.
Further: the Bian Hejiao of described first boss and described second boss is circular arc, so that the demoulding and prolongation die life.
Further: the degree of depth of described first groove is greater than the degree of depth of described second folding platform.
Further: the volume of the cavity of described patrix and the cavity of described counterdie is equal.
Further: the bottom of described patrix and described counterdie offers breach respectively, so that install location and change.
Beneficial effect of the present invention is:
1, the present invention is by improving mould, and the cover forging making blank flange is zero, and utilization rate of raw materials is high, improves 40% than the technique of prior art.
2, high, the steady quality of the present invention's blank flange each spot size unified standard, precision of producing, stock allowance ± 0.8mm, its quality and technology can reach the standard of blank flange outlet at present; Manpower and materials reduce 30%, and cover forging flange blank stock percent defective reduces 90% than prior art.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the cross-sectional view of the rear embodiment of hubbed flange finish forge combination die of the present invention assembling;
Fig. 2 is the cross-sectional view of another embodiment after hubbed flange finish forge combination die of the present invention assembling.
In figure:
1, patrix; 11, the first boss; 12, the 3rd groove; 13, the first groove; 14, the first folding platform; 15, the 4th groove; 16, breach; 2, counterdie; 21, the second boss; 22, the second groove; 23, the second folding platform; 24, the 3rd folding platform; 25, the 5th groove.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, for according to the cross-sectional view after the assembling of the hubbed flange finish forge combination die of some illustrative embodiment.
The hubbed flange combination die of some illustrative embodiment, comprising:
Patrix 1, to be provided with section be the first trapezoidal boss 11 in the centre of its one side, and the upper surface of described first boss 11 is higher than the surface of described patrix 1; Surrounding along the lower edge of described first boss 11 offers the first groove 13 of annular; Surrounding along the outer edge of described first groove 13 is provided with the first folding platform 14 of annular; With,
Counterdie 2, the centre of its one side is corresponding with described first boss 11, being provided with section is the second trapezoidal boss 21, the upper surface of described second boss 21 is lower than the surface of described counterdie 2, surrounding along the lower edge of described second boss 21 offers the second groove 22 of annular, outer edge along described second groove 22 is provided with the second folding platform 23 of annular, the external diameter of described first groove 13 is identical with the external diameter of described second folding platform 23, and the outer edge along described second folding platform 23 is provided with the 3rd folding platform 24 of annular.
Described patrix 1 and described counterdie 2 fasten the cavity forming flange blank place: the cavity that described first groove 13 and described second groove 22 are formed corresponds to the neck of described flange; The cavity that described first groove 13 and described second folding platform 23 are formed corresponds to the dish portion of described flange; The cavity that described first folding platform 14 is formed with described 3rd folding platform 24, for holding clout; Distance is left between described first boss 11 and described second boss 21.
In order to improve raw-material utilization rate, reduce the volume of cover forging, the distance between described first boss 11 and described second boss 21 is 3 ~ 10mm.Preferably, the distance between described first boss 11 and described second boss 21 is 5mm, through experiment, when this distance is 5mm, can protect mould best, farthest can utilize raw material again.
Preferably, for the ease of installing and more mold exchange, the profile of described patrix 1 and described counterdie 2 is cylindrical.More preferably, the bottom of described patrix 1 and described counterdie 2 offers breach 16 respectively, so that installation and more mold exchange.
As shown in Figure 2, for according to the cross-sectional view after the assembling of the hubbed flange finish forge combination die of other illustrative embodiment.
The dish portion of some flange requires RF face, the hubbed flange combination die of some illustrative embodiment, along the surrounding of the lower edge of described first boss 11, described first groove 13 offers the 3rd groove 12 of annular, described 3rd groove 12 is corresponding with the RF face of described flange.
The hubbed flange combination die of some illustrative embodiment, respectively on described first folding platform 14 and described 3rd folding platform 24, offer the 4th groove 15 and the 5th groove 25, clout first by the narrow passage that described first folding platform 14 and described 3rd folding platform 24 are formed so that shaping time raw material trends rationally.
The hubbed flange combination die of some illustrative embodiment, the Bian Hejiao of described first boss 11 and described second boss 21 is circular arc, so that the demoulding.
The hubbed flange combination die of some illustrative embodiment, the degree of depth of described first groove 13 is greater than the degree of depth of described second folding platform 23, and its object one is the forging and stamping in order to reduce raw material, raises the efficiency; Two is in order to the volume of the cavity of the cavity and described counterdie 2 making described patrix 1 is equal, to increase the precision of mould.
The blank workpiece accuracy height allowance that the present invention produces is little, and size is unified, without cover forging, and each position straight forming.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a hubbed flange combination die, is characterized in that, comprising:
Patrix (1), to be provided with section be trapezoidal the first boss (11) in the centre of its one side, and the upper surface of described first boss (11) is higher than the surface of described patrix (1); Surrounding along the lower edge of described first boss (11) offers first groove (13) of annular; Surrounding along the outer edge of described first groove (13) is provided with the first folding platform (14) of annular; With,
Counterdie (2), the centre of its one side is corresponding with described first boss (11), being provided with section is trapezoidal the second boss (21), the upper surface of described second boss (21) is lower than the surface of described counterdie (2), surrounding along the lower edge of described second boss (21) offers second groove (22) of annular, outer edge along described second groove (22) is provided with the second folding platform (23) of annular, the external diameter of described first groove (13) is identical with the external diameter of described second folding platform (23), outer edge along described second folding platform (23) is provided with the 3rd folding platform (24) of annular,
Described patrix (1) and described counterdie (2) fasten the cavity forming flange blank place: the cavity that described first groove (13) and described second groove (22) are formed corresponds to the neck of described flange; The cavity that described first groove (13) and described second folding platform (23) are formed corresponds to the dish portion of described flange; The cavity that described first folding platform (14) and described 3rd folding platform (24) are formed, for holding clout; Distance is left between described first boss (11) and described second boss (21).
2. a kind of hubbed flange combination die according to claim 1, is characterized in that, the profile of described patrix (1) and described counterdie (2) is cylindrical.
3. a kind of hubbed flange combination die according to claim 1, it is characterized in that, along the surrounding of the lower edge of described first boss (11), described first groove (13) offers the 3rd groove (12) of annular, and described 3rd groove (12) is corresponding with the RF face of described flange.
4. a kind of hubbed flange combination die according to claim 1, is characterized in that, the distance between described first boss (11) and described second boss (21) is 3 ~ 10mm.
5. a kind of hubbed flange combination die according to claim 4, is characterized in that, the distance between described first boss (11) and described second boss (21) is 5mm.
6. a kind of hubbed flange combination die according to claim 1,3 or 4, it is characterized in that, respectively on described first folding platform (14) and described 3rd folding platform (24), offer the 4th groove (15) and the 5th groove (25).
7. a kind of hubbed flange combination die according to claim 1, is characterized in that, the Bian Hejiao of described first boss (11) and described second boss (21) is circular arc, so that the demoulding and prolongation die life.
8. a kind of hubbed flange combination die according to claim 1, is characterized in that, the degree of depth of described first groove (13) is greater than the degree of depth of described second folding platform (23).
9. a kind of hubbed flange combination die according to claim 1 or 8, is characterized in that, the volume of the cavity of described patrix (1) and the cavity of described counterdie (2) is equal.
10. a kind of hubbed flange combination die according to claim 1 and 2, is characterized in that, the bottom of described patrix (1) and described counterdie (2) offers breach (16) respectively, so that install location and change.
CN201410291007.3A 2014-06-25 2014-06-25 Hubbed flange finish forge combination die Active CN105268891B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105834398A (en) * 2016-05-17 2016-08-10 河南科技大学 Liquid forging forming method for welding-neck flange, forming die and forming device
CN105945199A (en) * 2016-05-30 2016-09-21 德清德曼汽车零部件有限公司 Forging die for hubbed flange forge pieces
CN105945197A (en) * 2016-05-30 2016-09-21 德清德曼汽车零部件有限公司 Vibration reduction forging mold of neck-carried flange forging
CN105945198A (en) * 2016-05-30 2016-09-21 德清德曼汽车零部件有限公司 Anti-offset vibration reduction type forging die for special-shaped bearing outer ring forgings

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000079441A (en) * 1998-09-02 2000-03-21 Honda Motor Co Ltd Forging die device
JP2002239676A (en) * 2001-02-19 2002-08-27 Yutaka Seimitsu Kogyo Ltd Manufacturing method of die for forging bevel gear
CN102989966A (en) * 2012-10-19 2013-03-27 如皋市大生线路器材有限公司 One-time casting forming mold for prop flange used for transformer station
CN203265505U (en) * 2013-04-15 2013-11-06 日星金属制品(上海)有限公司 Die for machining flange parts in warm forging mode

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000079441A (en) * 1998-09-02 2000-03-21 Honda Motor Co Ltd Forging die device
JP2002239676A (en) * 2001-02-19 2002-08-27 Yutaka Seimitsu Kogyo Ltd Manufacturing method of die for forging bevel gear
CN102989966A (en) * 2012-10-19 2013-03-27 如皋市大生线路器材有限公司 One-time casting forming mold for prop flange used for transformer station
CN203265505U (en) * 2013-04-15 2013-11-06 日星金属制品(上海)有限公司 Die for machining flange parts in warm forging mode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105834398A (en) * 2016-05-17 2016-08-10 河南科技大学 Liquid forging forming method for welding-neck flange, forming die and forming device
CN105945199A (en) * 2016-05-30 2016-09-21 德清德曼汽车零部件有限公司 Forging die for hubbed flange forge pieces
CN105945197A (en) * 2016-05-30 2016-09-21 德清德曼汽车零部件有限公司 Vibration reduction forging mold of neck-carried flange forging
CN105945198A (en) * 2016-05-30 2016-09-21 德清德曼汽车零部件有限公司 Anti-offset vibration reduction type forging die for special-shaped bearing outer ring forgings

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