CN105033142B - The compacting tool set and pressing process of a kind of hubbed flange - Google Patents
The compacting tool set and pressing process of a kind of hubbed flange Download PDFInfo
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- CN105033142B CN105033142B CN201510402535.6A CN201510402535A CN105033142B CN 105033142 B CN105033142 B CN 105033142B CN 201510402535 A CN201510402535 A CN 201510402535A CN 105033142 B CN105033142 B CN 105033142B
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Abstract
A kind of compacting tool set of hubbed flange, including the upper shaping mould for fastening up and down and lower shaping mould and for expanding expanding ball, the die cavity of hubbed flange is surrounded between upper shaping mould and lower shaping mould, the center of upper shaping mould one end end face is provided with core bar, core bar end is provided with the inner concave being engaged with expanding ball sphere, in the pressing process of hubbed flange being carried out using the mould, preforming tool blocker forging is put into after the raw material of selection is carried out into blanking, then the hubbed flange of blocker forging is put into the lower shaping mould of the mould, withstood on using the core bar of upper shaping mould and pushed on expanding ball, endoporus to hubbed flange carries out expanding and the flange neck that extends length, after the completion of compacting, carry out finishing processing again to hubbed flange and obtain finished product.Hubbed flange is made using mould of the invention and technique, moulding process is simple, shaping profile is good, allowance is small, good mechanical performance, uniform texture, the defect of cast flange and overall forged flange can be overcome.
Description
Technical field
The present invention relates to the technical field of flange molding mold, especially a kind of compacting tool set of hubbed flange.
Background technology
Existing hubbed flange is typically all to machine shaping using casting, or solid forging round steel.Cast flange power
Learn performance bad, be also easy to occur to be mingled with, cavitations, it is impossible to used on bearing device；And overall forging round steel, Vehicle Processing
The method of shaping, allowance is big, and the activity duration is long, low production efficiency.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of compacting tool set of hubbed flange and are entered using the mould
The technique of row hubbed flange compacting, hubbed flange is made using the method for compression molding, moulding process is simple, shaping profile is good,
Allowance is small, good mechanical performance, uniform texture.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of compacting tool set of hubbed flange,
Including the mutual upper shaping mould and lower shaping mould for fastening, the die cavity of hubbed flange is surrounded between upper shaping mould and lower shaping mould, on
The center of shaping mould one end end face is provided with core bar, and the center of lower shaping mould one end end face opens up deep gouge, and in the bottom of deep gouge
The heart opens up the through hole for leading to the lower shaping mould other end, and through hole diameter of the internal diameter more than core bar, it is characterised in that：The mould
With an expanding ball, core bar end is provided with the inner concave being engaged with expanding ball sphere, and lower shaping is fastened in upper shaping mould
During molding hubbed flange processed is molded, inner concave is withstood on into the height inserted on expanding ball in die cavity after blocker forging by core bar
In the blue endoporus of cervical approach, to promote expanding ball that expanding and the hubbed flange that extends neck length is carried out to endoporus.
Preferably, the diameter with diameter greater than core bar of the expanding ball, the centre of sphere of expanding ball is on the axis of core bar.
Preferably, multiple conical protrusions are uniformly arranged around through hole in the deep gouge bottom part ring.
The forging and stamping pressing process for carrying out hubbed flange using the mould is as follows：
Step one：It is raw material to use forging round steel or steel plate；
Step 2：According to made flange size, cutting length is selected, after blanking, embryo material weight is made method
1.1 times of blue weight；
Step 3：According to the selected material of step one, the embryo material obtained by step 2 is heated to initial forging temperature, Ran Houfang
Entering preforming tool carries out blocker forging, and rushes endoporus, makes the aperture of endoporus less than the diameter of expanding ball；
Step 4：After the hubbed flange of the pre-calcined shaping obtained by step 3 is heated into final forging temperature, be put into it is described under
On shaping mould, expanding ball is placed on flange neck internal diameter oral area, expanding ball is directed at the inner concave of shaping mould core bar, and outside
The lower compacting downwards of power effect so that expanding ball the internal diameter of flange neck is carried out it is expanding, and with expanding carrying out, will be unnecessary
Embryo material is pushed with the length of the hubbed flange neck that extends downwards；
Step 5：When upper shaping mould is fastened completely with lower shaping mould, stop compacting, now expanding ball is under flange neck
Make a clean sweep of out, then take out compressing hubbed flange carry out finishing processing shaping obtain finished product.
Wherein, described initial forging temperature is relevant with the material of selected round steel or steel plate with final forging temperature, belongs to existing
There is technology category.
Compared with prior art, the invention has the advantages that：
First, compacting tool set and pressing process the production hubbed flange provided using the present invention can overcome casting
The defect of blue and overall forged flange, with smaller allowance, good mechanical performance, uniform texture；
Second, the endoporus of the flange neck of first shaping is carried out using expanding ball it is expanding, on the one hand while expanding
Ensure endoporus inwall smooth, the length of the hubbed flange neck that on the other hand can extend, and expanding ball with diameter greater than core
The diameter of bar, can so separate after expanding in order to expanding ball from core bar；
3rd, the frictional layer on the inner concave and inner concave of the setting of core bar end can fix expanding ball, it is to avoid expanding
Rotating occurs during expanding in ball, and influences the smoothness of hubbed flange endoporus.
Brief description of the drawings
Fig. 1 is the sectional view after present invention assembling.
Fig. 2 is the structural representation of upper shaping mould of the invention.
Fig. 3 is the sectional view of upper shaping mould of the invention.
Fig. 4 is the structural representation of lower shaping mould of the invention.
Fig. 5 is the sectional view of lower shaping mould of the invention.
Fig. 6 is the forging temperature of unlike material round steel.
Marked in figure：1st, upper shaping mould, 2, lower shaping mould, 3, expanding ball, 101, core bar, 102, pressboard, 103, indent
Face, 201, deep gouge, 202, through hole, 203, projection.
Specific embodiment
Below in conjunction with the accompanying drawings, by specific embodiment, the present invention is further illustrated.
As illustrated, a kind of compacting tool set of hubbed flange, including the upper shaping mould 1 that fastens up and down and lower shaping mould 2 with
And for expanding expanding ball 3, upper shaping mould 1 fastens the die cavity that back wall is molded into hubbed flange, upper shaping mould with lower shaping mould 2
1 is the circular cover for being provided with core bar 101, and circular cover lower surface is provided with circular pressboard 102, and described core bar 101 is vertical
It is arranged on the pressboard 102, the center of circle of the axis of core bar 101, the center of circle of circular cover and pressboard 102 is same
On straight line, an inner concave 103 is set in the end of core bar 101, inner concave 103 is a part for sphere, and on inner concave 103
One layer of wear-resisting frictional layer is coated with, lower shaping mould 2 is cylindrical structure, surface is set thereon can accommodate compacting in shaping mould
The deep gouge 201 of plate 102, the thickness of the depth more than pressboard 102 of deep gouge 201, and hub is opened up downwards at the center of deep gouge 201
The through hole 202 of flange neck shaping, the bottom part ring of deep gouge 201 is uniformly arranged the projection 203 of multiple cones, institute around through hole 202
The diameter with diameter greater than core bar 102 of expanding ball 3 is stated, and is withstood by the inner concave 103 of the end of core bar 102 and is pushed down on to hub
The endoporus of flange carries out expanding.
Preferably, the described top of through hole 202 is inverted truncated cone-shaped, and bottom is cylinder, the larger diameter end of truncated cone-shaped
Arc-shaped transition is provided between deep gouge 201.
The forging and stamping drawing method for carrying out hubbed flange using the mould is as follows：
Step one：It is raw material to use forging round steel, and the material of round steel is SA105；
Step 2：According to made flange size, cutting length is selected, after blanking, embryo material weight is made method
1.1 times of blue weight；
Step 3：To 1250 ~ 1200 DEG C of initial forging temperature, be then placed in preforming tool carries out blocker forging to heating embryo material,
And endoporus is rushed, make the aperture of endoporus less than the diameter of expanding ball；
Step 4：After the hubbed flange of first shaping is heated into 800 DEG C of final forging temperature, compacting tool set of the present invention is put into
On lower shaping mould, expanding ball is placed on the endoporus oral area of flange, expanding ball is directed at the inner concave of shaping mould core bar, and outside
The lower compacting downwards of power effect so that expanding ball flange endoporus is carried out it is expanding, and with expanding carrying out, by unnecessary embryo material to
Lower push is with the neck length of the hubbed flange that extends；
Step 5：When upper shaping mould is fastened completely with lower shaping mould, stop compacting, now expanding ball is from flange neck
Dropped out in endoporus, then take out compressing hubbed flange carry out finishing processing shaping obtain finished product.
In the above-mentioned methods, described initial forging temperature is relevant with the material of round steel with final forging temperature, its relation such as Fig. 6.
Claims (3)
1. a kind of compacting tool set of hubbed flange, including the upper shaping mould for mutually fastening（1）With lower shaping mould（2）, upper shaping mould
（1）With lower shaping mould（2）Between surround the die cavity of hubbed flange, upper shaping mould（1）The center of one end end face is provided with core bar
（101）, lower shaping mould（2）The center of one end end face opens up deep gouge（201）, and in deep gouge（201）Bottom centre open up and lead to
Lower shaping mould（2）The through hole of the other end（202）, and through hole（202）Internal diameter be more than core bar（101）Diameter, its feature exists
In：The mould has an expanding ball（3）, expanding ball（3）With diameter greater than core bar（101）Diameter, expanding ball（3）The centre of sphere
In core bar（101）Axis on, core bar（101）End is provided with and expanding ball（3）The inner concave that sphere is engaged（103）, and
In inner concave（103）On be coated with one layer of frictional layer, in upper shaping mould（1）It is fastened on lower shaping mould（2）Compacting hubbed flange shaping
During, by core bar（101）By inner concave（103）Withstand on expanding ball（3）Cervical approach high in upper insertion die cavity after blocker forging
In blue endoporus, to promote expanding ball（3）Expanding and the hubbed flange that extends neck length is carried out to endoporus.
2. the compacting tool set of a kind of hubbed flange according to claim 1, it is characterised in that：In the deep gouge（201）Bottom
Portion is around through hole（202）It is uniformly arranged multiple conical protrusions（203）.
3. the technique that a kind of compacting tool set of the hubbed flange described in utilization claim 2 suppresses hubbed flange, it is characterised in that：
Comprise the following steps：
Step one：It is raw material to use forging round steel or steel plate；
Step 2：According to made flange size, cutting length is selected, after blanking, embryo material weight is made flange weight
1.1 times of amount；
Step 3：According to the selected material of step one, the embryo material obtained by step 2 is heated to initial forging temperature, be then placed in pre-
Mould carries out blocker forging, and rushes endoporus, the aperture of endoporus is less than expanding ball（3）Diameter；
Step 4：After the hubbed flange of the blocker forging obtained by step 3 is heated into final forging temperature, described lower shaping is put into
Mould（2）On, by expanding ball（3）Flange neck endoporus oral area is placed on, shaping mould is used（1）Core bar（101）Inner concave（103）It is right
Accurate expanding ball（3）, and compacting downwards under external force so that expanding ball（3）The endoporus of flange neck is carried out it is expanding, and with
Expanding carrying out, unnecessary embryo material is pushed with the length of the hubbed flange neck that extends downwards；
Step 5：When upper shaping mould（1）With lower shaping mould（2）When fastening completely, stop compacting, now expanding ball（3）From flange
Neck lower end drops out, then take out compressing hubbed flange carry out finishing processing shaping obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402535.6A CN105033142B (en) | 2015-07-10 | 2015-07-10 | The compacting tool set and pressing process of a kind of hubbed flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402535.6A CN105033142B (en) | 2015-07-10 | 2015-07-10 | The compacting tool set and pressing process of a kind of hubbed flange |
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| Publication Number | Publication Date |
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| CN105033142A CN105033142A (en) | 2015-11-11 |
| CN105033142B true CN105033142B (en) | 2017-06-27 |
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| CN106051352B (en) * | 2016-06-30 | 2017-12-26 | 河南光大管业有限公司 | A kind of processing technology of large-scale pressure pipeline reducing tee pipe fitting |
| CN111069519A (en) * | 2019-12-27 | 2020-04-28 | 安徽宝泰特种材料有限公司 | Method for manufacturing nickel and nickel alloy welding neck flange |
| CN112719791A (en) * | 2020-12-14 | 2021-04-30 | 安徽宝泰特种材料有限公司 | Method for manufacturing titanium and titanium alloy flange |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52147555A (en) * | 1976-06-02 | 1977-12-08 | Kobe Steel Ltd | Hollow billet expansion process |
| RU1792784C (en) * | 1989-08-08 | 1993-02-07 | Алтайский политехнический институт им.И.И.Ползунова | Method of extruding hollow articles |
| CN101733350B (en) * | 2008-11-14 | 2011-06-15 | 江苏威鹰机械有限公司 | Production technology for blanking by using a through-hole type universal joint finish forging pot shell capable of moving axially |
| CN102658305A (en) * | 2012-05-14 | 2012-09-12 | 上海理工大学 | Device and method for processing powder metallurgy oil-retaining bearing inner hole |
| CN104139145A (en) * | 2014-08-11 | 2014-11-12 | 贵州航天新力铸锻有限责任公司 | Method for forging guide horn mouth forge pieces applied to internal components of nuclear reactor |
| CN204770415U (en) * | 2015-07-10 | 2015-11-18 | 河南光大管业有限公司 | Compacting tool set of hubbed flange |
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