CN108160897B - Large-scale inlaid type hot forged mould design and production method and large-scale inlaid type hot forged mould - Google Patents
Large-scale inlaid type hot forged mould design and production method and large-scale inlaid type hot forged mould Download PDFInfo
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- CN108160897B CN108160897B CN201810020038.3A CN201810020038A CN108160897B CN 108160897 B CN108160897 B CN 108160897B CN 201810020038 A CN201810020038 A CN 201810020038A CN 108160897 B CN108160897 B CN 108160897B
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- die sleeve
- insert
- inlaid type
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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
Abstract
The present invention provides a kind of large-scale inlaid type hot forged mould design and production method, and the mold includes die sleeve and mold core；Die sleeve is universal fixture and shapes using the extraordinary cast steel casting of low cost that the mold core is formed by several insert mosaics.After designing die sleeve and insert, die sleeve datum level and positioning plane, the positioning plane of insert and positioning spline are finished first, and accurately installation positioning key realizes the positioning between insert, then realize that insert and die sleeve vertical direction are fixed by sunk screw, the fastening between insert and die sleeve is realized by one or more levels standardization backing plate and wedge clamp auxiliary body again, finally obtains large-scale inlaid type hot forged mould.The present invention combines the mould structure of inlaid type using inexpensive cast steel die sleeve and more inserts, while reducing manufacturing cycle and manufacturing cost, meet the integrated hot forging forming requirements of big projected area component, lesser insert size also has the advantages such as better machining accuracy, heat treatment hardness, replaceability, can effectively improve the heavy-duty forging die tool service life.
Description
Technical field
The invention belongs to Mould design and manufacturing technical fields, and in particular to large-scale inlaid type hot forged mould design and manufacture side
Method and large-scale inlaid type hot forged mould.
Background technique
As the rapid development and the enlargement of aircraft key member, integration, precise treatment of China's aviation field require to mention
The design and manufacturing technology of height, heavy-duty forging die tool faces new challenges.For example, titanium alloy fuselage entirety frame is aircraft structure
Middle projected area is maximum, shapes difficulty highest, manufacturing cycle longest while the highest key member of manufacturing cost, carries to aircraft
Ability or even function life-span are most important.Before 800MN drop press comes into operation, several frame sections can only be split into,
An entirety is connected into electro-beam welding process again after sectional forming.This not only considerably increases the manufacturing cycle and is processed into
This, also to the control of post welding distortion, the stability etc. of structure property proposes high requirement.
Putting into operation for 800MN drop press creates possibility for a monolithic molding titanium alloy fuselage entirety frame.However,
The heavy-duty forging die tool individual module weight of the entirety frame forming is up to 65 tons (130 tons of a set of weight), using existing whole
Body formula mold production process is long there are the forging process period, difficulty is big, forging permeability is poor, heat treatment after forging hardness is low and easy appearance heat
The problems such as handling crackle, the mechanical property requirements being unable to satisfy during such big swage die is on active service.
Therefore a kind of large-scale inlaid type hot forged mould design system using inexpensive die sleeve (cast steel) and assembled inlay blocks is proposed
Method is made, the manufacturing cost and difficulty of the big swage die of monoblock type is not only effectively reduced, also improves the processing of small size insert
Quality and precision, have a vast market foreground.
Summary of the invention
In view of the above shortcomings of the prior art, the present invention proposes a kind of large-scale inlaid type hot forged mould design and manufacture side
Original large-scale monoblock type hot forged mould structural adjustment is the mold that inexpensive cast steel die sleeve and more inserts combine inlaid type by method
Structure, die sleeve can cooperate different size mold core to be recycled, and while reducing manufacturing cycle and manufacturing cost, meet big projection
The integrated hot forging forming requirements of area key member.
The present invention also provides the large-scale inlaid type hot forged mould designed according to the above method, be not only greatly reduced mold manufacture at
This, lesser insert size also has the advantages such as better machining accuracy, heat treatment hardness, replaceability, can effectively improve big
The type hot forged mould service life.
In order to solve the above technical problems, present invention employs the following technical solutions:
A kind of large size inlaid type hot forged mould design and production method, the large size inlaid type hot forged mould includes die sleeve and mould
Core；Die sleeve is formed using the extraordinary cast steel casting forming of low cost, mold core by several insert mosaics；
Its design and production method includes the following steps:
A. die sleeve specification is according to production with existing aircraft entirety frame class component maximum outer dimension；
B. with die sleeve having a size of basic engineering unitary mould, numerical simulation is carried out using Deform-3D or Forge platform,
Obtain temperature field, stress field and load distribution of the unitary mould under default operating condition；
C. it is obtained according to step B as a result, by mold core region division at appropriate number of insert and determining insert connecting sewing
Position, and inlaid type mold core is made using hot die steel, so that mold is met the design strength requirement under default working condition；
The stress field is three-dimensional stress distribution, for determining splicing seams position, splicing seams position in stress homogeneous area,
Avoid the occurrence of stress concentration；
D. choosing two adjacent walls in die sleeve is benchmark face, remaining two adjacent wall of die sleeve remain for installing wedge clamp in advance
The installation space of auxiliary body；
E. baseplane and insert lower surface are positioning plane in die sleeve, and array is distributed with screw on baseplane in die sleeve
Hole；Insert bottom is equipped with threaded hole, and corresponding with the threaded hole that array on die sleeve is distributed；
F. after designing die sleeve and insert, first to die sleeve datum level and positioning plane and insert positioning plane and
Positioning spline is finished, and accurately installs positioning key, realizes the positioning between insert, is then realized and is inlayed by sunk screw
Block and die sleeve vertical direction are fixed, then realize insert and mould by one or more levels standardization backing plate and wedge clamp auxiliary body
Fastening between set finally obtains large-scale inlaid type hot forged mould.
The invention also discloses a kind of large-scale inlaid type hot forged moulds, including die sleeve and mold core；Die sleeve be universal fixture and
It is shaped using inexpensive extraordinary cast steel casting, baseplane is the positioning plane and array distribution screw for installing mold core in die sleeve
Hole；Two adjacent walls are the datum level for installing mold core in die sleeve, are reserved with setting between remaining two adjacent wall and mold core side wall
The installation space of wedge clamp auxiliary body；Mold core is anchored among die sleeve by sunk screw and wedge clamp auxiliary body；
The mold core is formed by several insert mosaics, is positioned between insert by positioning spline and positioning key；Insert bottom
Equipped with threaded hole, and it is corresponding with the screw that array on die sleeve is distributed.
Preferably, the wedge clamp auxiliary body is made of pressing plate, upper and lower wedge block, bolt and cushion block, the upper wedge
Shape block and lower wedge block coupling is arranged in the installation space between insert and die sleeve, by hammering stationary wedge block after by backing plate
Pressing plate and fastening bolt are balanced, realizes the fastening between insert between insert and die sleeve.
Preferably, the upper surface of the upper voussoir is provided with limited step.
Preferably, the value range of the thickness of the pressing plate is 60-90mm
Preferably, the nominal diameter of the bolt is φ 42mm.
Preferably, the length of the large-scale inlaid type hot forged mould is greater than 4 meters, and type chamber projected area is greater than 2.5 ㎡, is suitble to
There are the design and manufacture of super-large projection area construction hot forging forming forging die in aircraft entirety frame
Compared with prior art, the invention has the following beneficial effects:
1, original large-scale monoblock type hot forged mould structural adjustment is inexpensive cast steel die sleeve and more insert groups by the present invention
The mould structure of inlaid type is closed, die sleeve can cooperate different size mold core to be recycled, and reduce manufacturing cycle and manufacturing cost
Meanwhile meeting the integrated hot forging forming requirements of big projected area key member.
2, the present invention has the advantages such as better machining accuracy, heat treatment hardness, replaceability using lesser insert size,
Die manufacturing cost is not only greatly reduced, the heavy-duty forging die tool service life can also be effectively improved.
3, the large-scale inlaid type hot-forging die design structure of the present invention is reasonable, has the characteristics that flexible and convenient to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the large-scale inlaid type hot forged mould of the present invention；
Fig. 2 is the structural schematic diagram of wedge clamp auxiliary body in the present invention.
In figure, 1- mold core (insert), wedge block under 2-, the upper wedge block of 3-, 4- pressing plate, 5- bolt, 6- cushion block, 7- die sleeve.
Specific embodiment
The present invention is described in further detail with attached drawing combined with specific embodiments below.
Referring to Fig. 1, a kind of large size inlaid type hot forged mould design and production method, the large size inlaid type hot forged mould includes
Die sleeve 7 and mold core 1 equipped with product type chamber；Die sleeve 7 is universal fixture and is shaped using the extraordinary cast steel casting of low cost, die sleeve 7
Interior baseplane is the positioning plane and array distribution screw hole for installing mold core；Two adjacent walls are installation mold core 1 in die sleeve 7
Datum level reserves installation space between remaining two adjacent wall and mold core side wall；Mold core 1 is assisted by sunk screw and wedge clamp
Mechanism is anchored among die sleeve 7.
The mold core 1 is formed by several insert mosaics, is positioned between insert by positioning spline and positioning key；Insert bottom
Equipped with threaded hole, and it is corresponding with the spiral shell screw that array on die sleeve 7 is distributed, insert and die sleeve 7 are connected by sunk screw.
Die sleeve 7 uses G35CrNiMo cast form, and overall size is according to existing aircraft entirety frame class component maximum shape ruler
It is very little to be made as 6400*3600*450mm.Before part forging and molding, operation card is first formulated, then with die sleeve 7 having a size of basic engineering
Unitary mould, using the other similar software such as Deform-3D(or Forge) platform progress numerical simulation, it obtains unitary mould and exists
Temperature field, stress field and load distribution under operating condition；
By 1 region division of mold core at muti-piece insert and the position of determining insert connecting sewing, and made of hot die steel
Inlaid type mold core makes mold can satisfy the design strength requirement under working condition；
The inlaid type hot forged mould with super-large projection area construction (such as aircraft entirety frame) is manufactured, using present invention side
Method, die sleeve 7 are universal fixture and shape using the extraordinary cast steel casting of low cost that baseplane is the positioning for installing mold core in die sleeve 7
Plane and array distribution screw hole；Two adjacent walls are the datum level for installing mold core, remaining two adjacent wall and mould in die sleeve 7
Installation space is reserved between core side wall；Mold core is anchored among die sleeve 7 by sunk screw and wedge clamp auxiliary body.
1 region division of integral mould core is spliced at 6 inserts in the present embodiment, each insert is having a size of 11800*
1300*300mm is positioned by positioning spline and positioning key between insert；Insert bottom is equipped with threaded hole, and goes into battle with die sleeve 7
The screw hole of column distribution is corresponding.
Referring to fig. 2, the wedge clamp auxiliary body is by lower wedge block 2, upper wedge block 3, pressing plate 4, bolt 5 and cushion block 6
It constitutes, the upper wedge block 3 and the coupling of lower wedge block 2 are arranged in the installation space between insert and die sleeve 7, solid by hammering
Determine to balance pressing plate 4 and fastening bolt 5 by cushion block 6 after wedge block, realizes the fastening between insert between insert and die sleeve 7.
It advanced optimizes, the upper surface of the upper voussoir is provided with limited step for limiting to pressing plate 4.The pressure
The thickness of plate 4 can be 60-90mm, and the nominal diameter of the bolt 5 is φ 42mm.
Wherein, each insert (1), pressing plate 4, upper and lower wedge block 2 etc. are all made of the production of H13 mould steel；Positioning key outer dimension
For 270*60*30mm, totally 4；Array screw hole nominal diameter φ 30, totally 171, sunk screw nominal diameter φ used
28；4 thickness 60mm of pressing plate；10 ° of wedge block gradient；5 nominal diameter φ 42 of bolt on pressing plate 4.
After producing die sleeve 7, insert 1, cushion block 6 and wedge clamp auxiliary body etc., corresponding roughing, Re Chu are carried out
Reason, finishing step, position is installed and is fastened as illustrated, obtains final large-scale inlaid type hot forged mould.
In the present invention, presetting operating condition is operating condition of the forging mold when being forged.Inexpensive special type cast steel includes
G35CrNiMo, ZG29MnMoNi, ZG35MnSi etc..
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although passing through ginseng
According to the preferred embodiment of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
To make various changes to it in the form and details, without departing from the present invention defined by the appended claims
Spirit and scope.
Claims (1)
1. a kind of large size inlaid type hot forged mould design and production method, which is characterized in that the large size inlaid type hot forged mould packet
Include die sleeve and mold core；Die sleeve is formed using the extraordinary cast steel casting forming of low cost, mold core by several insert mosaics；
Its design and production method includes the following steps:
A. die sleeve specification is according to production with existing aircraft entirety frame class component maximum outer dimension；
B. with die sleeve having a size of basic engineering unitary mould, numerical simulation is carried out using Deform-3D or Forge platform, is obtained
Temperature field, stress field and load distribution of the unitary mould under default operating condition；
C. obtained according to step B as a result, by mold core region division at appropriate number of insert and determine insert connecting sewing position,
And inlaid type mold core is made using hot die steel, so that mold is met the design strength requirement under default working condition；
The stress field is three-dimensional stress distribution, for determining that splicing seams position, splicing seams position are avoided in stress homogeneous area
There is stress to concentrate；
D. choosing two adjacent walls in die sleeve is benchmark face, remaining two adjacent wall of die sleeve remain for installing wedge clamp auxiliary in advance
The installation space of mechanism；
E. baseplane and insert lower surface are positioning plane in die sleeve, and array is distributed with screw hole on baseplane in die sleeve,
It realizes and connect fastening with different size mold core；Insert bottom is equipped with threaded hole, and the screw hole pair being distributed with array on die sleeve
It answers；
F. positioning plane and positioning after designing die sleeve and insert, first to die sleeve datum level and positioning plane and insert
Keyway is finished, and accurately installs positioning key, realizes the positioning between insert；Then by sunk screw realize insert and
Die sleeve vertical direction is fixed；Again by one or more levels standardization backing plate and wedge clamp auxiliary body realize insert and die sleeve it
Between fastening, finally obtain large-scale inlaid type hot forged mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810020038.3A CN108160897B (en) | 2018-01-09 | 2018-01-09 | Large-scale inlaid type hot forged mould design and production method and large-scale inlaid type hot forged mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810020038.3A CN108160897B (en) | 2018-01-09 | 2018-01-09 | Large-scale inlaid type hot forged mould design and production method and large-scale inlaid type hot forged mould |
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| CN108160897A CN108160897A (en) | 2018-06-15 |
| CN108160897B true CN108160897B (en) | 2019-08-02 |
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| CN109501137A (en) * | 2018-11-21 | 2019-03-22 | Oppo（重庆）智能科技有限公司 | Mold, light guide plate and its processing method, display screen and electronic equipment |
| CN110947800B (en) * | 2019-12-09 | 2021-08-27 | 中航沈飞民用飞机有限责任公司 | Box-type module group knocking-detection die and method for forming Z-shaped ultra-long section by applying same |
| CN112453297A (en) * | 2020-10-23 | 2021-03-09 | 北京北方车辆集团有限公司 | Forging and forming method of connected track shoe forging hammer |
| CN112434459B (en) * | 2020-12-22 | 2022-04-12 | 湖北汽车工业学院 | Mosaic forging die strength analysis method based on uneven temperature and stress distribution |
| CN113000681A (en) * | 2021-02-08 | 2021-06-22 | 中南大学 | Forming device of aluminum alloy top cover component with convex holes |
| CN113714450A (en) * | 2021-09-13 | 2021-11-30 | 陕西南水汽车配件制造有限公司 | Novel hot forging forming process for thrust cam block of automobile engine |
| CN113664134A (en) * | 2021-09-13 | 2021-11-19 | 陕西南水汽车配件制造有限公司 | Design method of automobile engine cam block forming upsetting die |
| CN114558976B (en) * | 2022-03-22 | 2023-12-26 | 宜昌中南精密钢管有限公司 | Guide sleeve hot forging forming die and assembly method |
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| CN204620977U (en) * | 2015-03-23 | 2015-09-09 | 山东矿机集团莱芜煤机有限公司 | A kind of circle inserted forging die retention mechanism |
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| CN205798289U (en) * | 2016-05-29 | 2016-12-14 | 德清恒丰机械有限公司 | The garbage collection mechanism of forging hammer |
| CN205851786U (en) * | 2016-07-01 | 2017-01-04 | 上海汇众汽车车桥系统有限公司 | A kind of assembling die of fast changeable die cavity |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1331945A (en) * | 1970-10-05 | 1973-09-26 | Doncasters Monk Bridge Ltd | Forging dies for the forging of turbine or compressor baldes of vanes |
| CN201659243U (en) * | 2010-02-04 | 2010-12-01 | 上海腾辉锻造有限公司 | Inlaid block type hammer forging die |
| CN204620977U (en) * | 2015-03-23 | 2015-09-09 | 山东矿机集团莱芜煤机有限公司 | A kind of circle inserted forging die retention mechanism |
| CN205362389U (en) * | 2016-01-05 | 2016-07-06 | 中国第一汽车股份有限公司 | Large -scale reverse slide wedge mechanism |
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| CN108160897A (en) | 2018-06-15 |
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Effective date of registration: 20190708 Address after: 400044 No. 174 Sha Jie street, Shapingba District, Chongqing Applicant after: Chongqing University Applicant after: Chongqing Jiepin Technology Co., Ltd. Applicant after: Chongqing Fositan Intelligent Equipment Co., Ltd. Address before: 400044 No. 174 Sha Jie street, Shapingba District, Chongqing Applicant before: Chongqing University |
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Inventor after: Zhang Jiansheng Inventor after: Zhou Jie Inventor after: Liu Jie Inventor after: Ding Rongrong Inventor after: Xiang Rong Inventor after: Lu Shun Inventor before: Zhou Jie Inventor before: Zhang Jiansheng Inventor before: Liu Jie Inventor before: Ding Rongrong Inventor before: Xiang Rong Inventor before: Lu Shun |
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Address after: 401329 the Jiulongpo District of Chongqing Municipality Gu Zhen Han Xing Road No. 38 304 Co-patentee after: Chongqing University Patentee after: Chongqing Jiepin Technology Co., Ltd. Co-patentee after: Chongqing Fositan Intelligent Equipment Co., Ltd. Address before: 400044 Shapingba District Sha Street, No. 174, Chongqing Co-patentee before: Chongqing Jiepin Technology Co., Ltd. Patentee before: Chongqing University Co-patentee before: Chongqing Fositan Intelligent Equipment Co., Ltd. |
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