CN107186148A - The mould of rotary drum is forged on common hydraulic press - Google Patents
The mould of rotary drum is forged on common hydraulic press Download PDFInfo
- Publication number
- CN107186148A CN107186148A CN201710568547.5A CN201710568547A CN107186148A CN 107186148 A CN107186148 A CN 107186148A CN 201710568547 A CN201710568547 A CN 201710568547A CN 107186148 A CN107186148 A CN 107186148A
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- CN
- China
- Prior art keywords
- mold core
- die
- sleeve
- rotary drum
- lower mold
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of mould that rotary drum is forged on common hydraulic press, including upper die punch, lower die-sleeve and lower mold core, lower mold core is fixed and is inserted in lower die-sleeve lower end inside, lower mold core uper side surface is formed with the concaveconvex structure matched with rotary drum rear surface to be formed, what upper die punch can longitudinally be lifted is positioned at directly over lower mold core, and upper die punch lower end just forms the concaveconvex structure with being matched on the inside of rotary drum upper end to be formed, and upper die punch be able to be inserted in lower die-sleeve, the forging of the present invention is once compressing, forging is realized than more complete continuous forging flow lines along section, improve the mechanical performance of part, module does not produce overlap, allowance is small, it is once compressing, the mechanical performance of forging is high, manufacturing cost is low, save raw material, lower mould uses Split type structure, avoid the waste of mold materials, it can realize that right angle is connected between lower mold core and lower die-sleeve, avoid Rouno Cormer Pregrinding Wheel, reduce the usage amount of raw material, die life is long.
Description
Technical field
The present invention relates to a kind of rotary drum mould, more particularly to a kind of mould that rotary drum is forged on common hydraulic press.
Background technology
Rotary drum is the critical component of centrifuge.Rotary drum is internal during high speed rotational operation to bear high pressure, and traditional adds
Work mode is casting, open die forging.Casting processing due to be difficult to eliminate stomata, be mingled with, the tissue defects such as shrinkage cavity shrinkage porosity, while it is brilliant
Grain tissue is difficult to control to, it is impossible to meet the mechanical property requirements of part, and the mechanicalness of the discontinuous metal structure of open die forgings
The use requirement increasingly improved can not be slowly met, so having turned into current hair using die forging or fashion of extrusion forming drum
The trend of exhibition.
Current conventionally manufactured mode is as follows：
First, cast
Casting is to belong to the traditional hot forming mode of comparison, and casting easily produces stomata, sand holes, misrun, contracting during casting
Hole shrinkage porosite, the defect such as it is mingled with, simultaneously because its processing temperature is higher, mould use condition harsh, die life is relatively low.While its
Organizational controls difficulty is big, performance is not sufficiently stable, production process is more and cumbersome, die life is low, seriously polluted cause casting rotary drum
Cost is higher, low production efficiency, thus can not meet the requirement that high-volume is quickly produced.
Compared to casting, it is loose that forging can eliminate the as cast condition produced in smelting process, improve product density, optimize microcosmic group
Structure is knitted, when reasonable in design, the metal streamline that forging is produced will greatly improve product mechanical property.Forging again be divided into open die forging with
Precision die forging.
2nd, open die forging
Open die forging is to belong to the rough thermoforming mode of comparison, is characterized in getting general profile, open die forging forging compares
Heaviness, and in irregular shape, subsequently needs to carry out substantial amounts of machining, during machining, waste of raw materials it is serious, production efficiency
Low, interiors of products can not realize more continuous forging flow lines, therefore, and the mechanical performance of the discontinuous metal structure of open die forgings is
The use requirement increasingly improved can not be gradually met, open die forging forging is heavier and in irregular shape.
3rd, precision die forging
Compared with open die forging, the as cast condition rarefaction defect that precision die forging is produced in smelting process is eliminated improves product closely knit
Property while, can significantly reduce the consumption of raw material, extrusion forming is multiple compared to open die forging in pressing process
Heating, which is forged, is greatly decreased energy resource consumption, while the metal streamline that precision die forging is produced is fine and close continuous, greatly improves product mechanics
Performance.
Forging inner chamber mould is integral type drift, and outer wall shaping dies traditional design mode is integral type, but integrally
Formula outer wall die design has the disadvantage that：
(1) outer wall shaping dies will use a larger solid pole material, and the outer wall shaping dies being fabricated to is about
It will have to cut out center top half material in one barrel-like structure, manufacturing process, mold materials waste serious；
(2) integral type tubbiness mold bottom should have larger thickness, and bottom should have larger round-corner transition with side wall,
Otherwise may be excessively sharp due to junction fillet causes mold bottom to produce stress collection in pressing process with side wall junction
In cause crack of die to cause mould to scrap, while larger fillet will cause the increase of forging raw material.
The content of the invention
, should be general the invention provides a kind of mould that rotary drum is forged on common hydraulic press in order to overcome drawbacks described above
The mould of forging rotary drum can realize rotary drum precise forming on logical hydraulic press, improve the mechanical performance of part, again can be significantly
Save raw material.
The technical scheme that is used to solve its technical problem of the present invention is：One kind forges rotary drum on common hydraulic press
Mould, including upper die punch, lower die-sleeve and lower mold core, the lower mold core fixes and is inserted in lower die-sleeve lower end inside, lower mold core
Uper side surface is formed with the concaveconvex structure matched with rotary drum rear surface to be formed, the positioning that upper die punch can longitudinally be lifted
Directly over lower mold core, and upper die punch lower end just forms the concaveconvex structure with being matched on the inside of rotary drum upper end to be formed, and upper mould
Drift be able to be inserted in lower die-sleeve.
As a further improvement on the present invention, spacing backing plate is additionally provided with, the spacing backing plate is fixed with lower die-sleeve lower end to be connected
Connect, lower mold core lower surface is just tight against spacing backing plate uper side surface.
As a further improvement on the present invention, a groove structure, lower die-sleeve are formed with the spacing backing plate uper side surface
Lower end forms a bulge-structure, and the bulge-structure of the lower die-sleeve lower end is just inserted in the groove structure of spacing backing plate, lower mould
Lower end is covered to be in close contact with spacing backing plate upper end face.
As a further improvement on the present invention, the spacing backing plate groove structure bottom surface leads to lower die-sleeve lower end bulge-structure
Connector is crossed to be fixedly connected.
As a further improvement on the present invention, an ejector beam that can axially slide is additionally provided with the spacing backing plate, under
Core rod is just inserted in the perforation provided with a perforation, ejector beam, and ejector beam upper end be able to be flat with lower mold core end upper surface
Together.
As a further improvement on the present invention, the ejector beam upper end forms the top that a diameter is extended out, the top upper end
Surface is concordant with lower mold core end upper surface, and the perforation of the lower mold core is more than the countersunk head through hole of lower end diameter for upper end diameter, top
The top of material bar upper end is just placed in the countersunk head of lower mold core countersunk head through hole.
The beneficial effects of the invention are as follows：The forging of the present invention is once compressing, and forging is realized than more complete company along section
Continuous forging flow lines, improves the mechanical performance of part, and module does not produce overlap, and allowance is small, once compressing, forging
The mechanical performance of part is high, and manufacturing cost is low, saves raw material, lower mould uses Split type structure, it is to avoid the waste of mold materials, under
It can realize that right angle is connected between core rod and lower die-sleeve, it is to avoid Rouno Cormer Pregrinding Wheel, reduce the usage amount of raw material, meanwhile, the two
Between it is unstressed concentrate, the trouble and worry of no cracking improves the mold use life-span.
Brief description of the drawings
Fig. 1 is rotary drum part three dimensional map；
Fig. 2 is rotary drum part schematic diagram；
Fig. 3 is the forging stereogram being molded using open die forging mode；
Fig. 4 is the forging front view being molded using open die forging mode；
Fig. 5 uses the forging stereogram that precision die forging mode is molded；
Fig. 6 uses the forging front view that precision die forging mode is molded；
Fig. 7 structure principle charts of the present invention；
The forging stereogram that Fig. 8 is molded using the present invention；
The forging front view that Fig. 9 is molded using the present invention.
Embodiment
Embodiment：A kind of mould that rotary drum is forged on common hydraulic press, including upper die punch 1, lower die-sleeve 2 and lower mold core
3, the lower mold core 3, which is fixed, is inserted in the lower end inside of lower die-sleeve 2, the uper side surface of lower mold core 3 be formed with rotary drum to be formed
The concaveconvex structure of end surfaces matching, what the longitudinal direction of upper die punch 1 can be lifted is positioned at directly over lower mold core 3, and under upper die punch 1
End just forms the concaveconvex structure with being matched on the inside of rotary drum upper end to be formed, and upper die punch 1 be able to be inserted in lower die-sleeve 2.
Lower mould is used into split-type design, using the lower die-sleeve 2 of an annular as lower mould lateral wall, lower mold core 3 is used for
Bottom of the drum is molded.
During shaping, rotary drum sidewall sections blank 7 during forging and stamping is flowed up along the inwall of lower die-sleeve 2, i.e., backward extrusion into
Type.Central protuberance part is shaped by the cavity caved inward of the lower section of upper die punch 1, due to the upper die punch in die forging process
1 keeps that slowly stablizes to push speed so that metal keeps the flow regime slowly stablized, thus metal is by the inwall of lower die-sleeve 2
Frictional resistance reduce and will not produce that surface overheat, drift are slowly stable to be pushed speed and will not produce center portion overheat.Due to forging
Part is once compressing, therefore forging is realized than more complete continuous forging flow lines along section, improves the mechanical performance of part.
Such a enclosed backward extruding die forging molding mode does not produce overlap, and allowance is small, once compressing, so planting forming mode energy
It is enough that cost is reduced on the basis of the mechanical performance of forging is increased substantially, raw material, the lower mould of the present invention can be significantly saved again
Using Split type structure, it is to avoid the waste of mold materials, it can realize that right angle is connected between lower mold core 3 and lower die-sleeve 2, it is to avoid
Rouno Cormer Pregrinding Wheel, reduces the usage amount of raw material, meanwhile, unstressed therebetween to concentrate, the trouble and worry of no cracking improves mould
The service life of tool.
Spacing backing plate 4 is additionally provided with, the spacing backing plate 4 is fixedly connected with the lower end of lower die-sleeve 2, and the lower surface of lower mold core 3 is just tight
To the spacing uper side surface of backing plate 4, the positioning and support of lower mold core 3 are realized by spacing backing plate 4, the intensity and essence of lower mould is improved
Degree.
A groove structure is formed with the uper side surface of spacing backing plate 4, the lower end of lower die-sleeve 2 forms a bulge-structure, institute
The bulge-structure for stating the lower end of lower die-sleeve 2 is just inserted in the groove structure of spacing backing plate 4, on the lower end of lower die-sleeve 2 and spacing backing plate 4
End surfaces are in close contact, and the positioning of spacing backing plate 4 and lower die-sleeve 2 is realized by groove structure and bulge-structure, it is ensured that the two is determined
Position precision is high, stable connection.
The groove structure bottom surface of spacing backing plate 4 is fixedly connected with the lower end bulge-structure of lower die-sleeve 2 by connector.
An ejector beam 5 that can axially slide is additionally provided with the spacing backing plate 4, lower mold core 3 is provided with a perforation, liftout
Bar 5 is just inserted in the perforation, and the upper end of ejector beam 5 be able to be concordant with the end upper surface of lower mold core 3, is realized by ejector beam 5
The demoulding of product, during the demoulding, drive device driving ejector beam 5, which rises, to eject product out of lower die-sleeve 2, and drive device can
With the ejecting mechanism for being oil hydraulic cylinder or being linked by slide block structure and upper mould.
The upper end of ejector beam 5 forms the top 6 that a diameter is extended out, the upper end face of top 6 and the end upper surface of lower mold core 3
Concordantly, the perforation of the lower mold core 3 is more than the countersunk head through hole of lower end diameter for upper end diameter, and the top 6 of the upper end of ejector beam 5 just holds
In the countersunk head for being placed in the countersunk head through hole of lower mold core 3, countersunk head through hole can realize the spacing of the top end 6 of ejector beam 5 and positioning, it is ensured that its
Upper end keeps aliging with the upper end of lower mold core 3, meanwhile, top 6 diameters increase improves itself and product surface contact area, it is to avoid its is straight
The too small top injured labour product in footpath, or the ejector beam 5 that fractures.
Claims (6)
1. a kind of mould that rotary drum is forged on common hydraulic press, it is characterised in that：Including upper die punch (1), lower die-sleeve (2) and
Lower mold core (3), the lower mold core, which is fixed, is inserted in lower die-sleeve lower end inside, and lower mold core uper side surface is formed with to be turned with to be formed
The concaveconvex structure of drum rear surface matching, what upper die punch can longitudinally be lifted is positioned at directly over lower mold core, and upper die punch
Lower end just forms the concaveconvex structure with being matched on the inside of rotary drum upper end to be formed, and upper die punch be able to be inserted in lower die-sleeve.
2. the mould according to claim 1 that rotary drum is forged on common hydraulic press, it is characterised in that：It is additionally provided with spacing pad
Plate (4), the spacing backing plate is fixedly connected with lower die-sleeve lower end, and lower mold core lower surface is just tight against spacing backing plate uper side surface.
3. the mould according to claim 1 that rotary drum is forged on common hydraulic press, it is characterised in that：The spacing backing plate
A groove structure is formed with uper side surface, lower die-sleeve lower end forms a bulge-structure, the bulge-structure of the lower die-sleeve lower end
In the groove structure for being just inserted in spacing backing plate, lower die-sleeve lower end is in close contact with spacing backing plate upper end face.
4. the mould according to claim 3 that rotary drum is forged on common hydraulic press, it is characterised in that：The spacing backing plate
Groove structure bottom surface is fixedly connected with lower die-sleeve lower end bulge-structure by connector.
5. the mould according to claim 2 that rotary drum is forged on common hydraulic press, it is characterised in that：The spacing backing plate
On be additionally provided with the axial ejector beam (5) that can slide, lower mold core is just inserted in the perforation provided with a perforation, ejector beam,
And ejector beam upper end be able to be concordant with lower mold core end upper surface.
6. the mould according to claim 1 that rotary drum is forged on common hydraulic press, it is characterised in that：On the ejector beam
End forms the top (6) that a diameter is extended out, and the top upper end face is concordant with lower mold core end upper surface, the perforation of the lower mold core
It is more than the countersunk head through hole of lower end diameter for upper end diameter, the top of ejector beam upper end is just placed in the countersunk head of lower mold core countersunk head through hole
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568547.5A CN107186148A (en) | 2017-07-13 | 2017-07-13 | The mould of rotary drum is forged on common hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568547.5A CN107186148A (en) | 2017-07-13 | 2017-07-13 | The mould of rotary drum is forged on common hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107186148A true CN107186148A (en) | 2017-09-22 |
Family
ID=59882140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710568547.5A Pending CN107186148A (en) | 2017-07-13 | 2017-07-13 | The mould of rotary drum is forged on common hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107186148A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756538A (en) * | 2021-02-26 | 2021-05-07 | 辽宁北祥重工机械制造有限公司 | Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07251232A (en) * | 1994-03-16 | 1995-10-03 | Reizu Eng:Kk | Rotary forging device and manufacture of automobile wheel using the same |
| CN203679136U (en) * | 2013-12-12 | 2014-07-02 | 南京中船绿洲机器有限公司 | Large-diameter rotating drum tire mold |
| CN204685934U (en) * | 2015-04-15 | 2015-10-07 | 昌利锻造有限公司 | One is in conjunction with gear ring forging mold |
| CN104972041A (en) * | 2015-06-23 | 2015-10-14 | 柳州科尔特锻造机械有限公司 | Forging die for spoke |
| CN206009700U (en) * | 2016-08-06 | 2017-03-15 | 宁波路威汽车轮业有限公司 | Wheel hub forging mold |
| CN106624680A (en) * | 2017-01-21 | 2017-05-10 | 杭州科技职业技术学院 | Machining method for forging die of automobile bearing |
| CN207086815U (en) * | 2017-07-13 | 2018-03-13 | 苏州昆仑重型装备制造有限公司 | The mould of rotary drum is forged on common hydraulic press |
-
2017
- 2017-07-13 CN CN201710568547.5A patent/CN107186148A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07251232A (en) * | 1994-03-16 | 1995-10-03 | Reizu Eng:Kk | Rotary forging device and manufacture of automobile wheel using the same |
| CN203679136U (en) * | 2013-12-12 | 2014-07-02 | 南京中船绿洲机器有限公司 | Large-diameter rotating drum tire mold |
| CN204685934U (en) * | 2015-04-15 | 2015-10-07 | 昌利锻造有限公司 | One is in conjunction with gear ring forging mold |
| CN104972041A (en) * | 2015-06-23 | 2015-10-14 | 柳州科尔特锻造机械有限公司 | Forging die for spoke |
| CN206009700U (en) * | 2016-08-06 | 2017-03-15 | 宁波路威汽车轮业有限公司 | Wheel hub forging mold |
| CN106624680A (en) * | 2017-01-21 | 2017-05-10 | 杭州科技职业技术学院 | Machining method for forging die of automobile bearing |
| CN207086815U (en) * | 2017-07-13 | 2018-03-13 | 苏州昆仑重型装备制造有限公司 | The mould of rotary drum is forged on common hydraulic press |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756538A (en) * | 2021-02-26 | 2021-05-07 | 辽宁北祥重工机械制造有限公司 | Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment |
| CN112756538B (en) * | 2021-02-26 | 2024-05-07 | 辽宁北祥重工机械制造有限公司 | Near-net forming die and forming method for hinge beam forging of fine steel stone pressure equipment |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |
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| RJ01 | Rejection of invention patent application after publication |