CN106955961A - The flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging - Google Patents
The flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging Download PDFInfo
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- CN106955961A CN106955961A CN201710333456.3A CN201710333456A CN106955961A CN 106955961 A CN106955961 A CN 106955961A CN 201710333456 A CN201710333456 A CN 201710333456A CN 106955961 A CN106955961 A CN 106955961A
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- Prior art keywords
- push rod
- forging
- large scale
- different
- shaped structural
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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
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
-
- 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
- B21J13/025—Dies with parts moving along auxiliary lateral directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
Abstract
The invention discloses a kind of flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging, the device includes at least 3 push rods and base, through hole is provided with the anvil tool of the die forging, the lower end of the push rod is fixed on the base and its upper end and contacted through the through hole of anvil tool with the different bottom surfaces of the large scale special-shaped structural forging in mold cavity, the quantity of the anvil tool through hole is equal with the quantity of push rod, the push rod by the flexible compliant section in upper end and lower end there is rigid rigid section to constitute, when ejecting the forging using the push rod, the decrement when compliant section of every push rod reaches elastic limit is equal.The device can make forging demoulding process become more steady and not easily damaged, greatly improve forging demoulding quality.It is mainly used in after the forging of the forging such as aircraft large-sized structural parts and is stripped.
Description
Technical field
The present invention relates to a kind of forging demoulding device, a kind of more particularly to large scale special-shaped structural forging of closed die forging
Flexible stripper apparatus.
Background technology
In the closed die forging metal material forming technology such as isothermal forging, hot forging, metal material is in a mold by outer masterpiece
Forging is configured to full of mold cavity with producing to flow, and metal produces friction in flow process with mold cavity surface, and
And new surface is formed, if the not good forging of lubrication usually tightly sticks together with mould, need to be stripped dress during forging demoulding
Forging could be ejected from mold cavity by putting.In the prior art, for large scale special-shaped structural forging in irregular shape as greatly
Type aircraft structure, the push rod of the stripper apparatus used after closed die forging is carried out is by rigid material, forging demoulding
During need using at least more than 3 rigid push rod eject forging.
During the demoulding, when the ejecting force of a certain push rod is more than friction of the forging in the position of this root push rod and mold cavity
During resistance, the position of forging will first loosen and produce certain displacement, due to push rod be it is rigid, push rod and forging it
Between will produce certain interval, now this root push rod to the ejecting force of forging by pop-off vanishing；Meanwhile, stripper apparatus is simultaneously
It is not out of service, and power ejection forging is being continuously applied to, the ejecting force that the power newly applied and just that push rod disappear is by wink
Between be loaded on one or a few other push rod, the stress for causing one or a few other push rod is the increase of discontinuous, pulsed
, and by root appearance and the just similar situation of that push rod, this process will at random occur and constantly carry out, to the last
A piece push rod loosens forging top；And now stripper apparatus force ejection process is still being carried out, all push rods will produce displacement, very
It hurry up, wherein a certain push rod will be contacted with forging again, the position of forging and this root ejector pin contact will be ejected again
The effect of power, and the frictional resistance before now the frictional resistance at the position does not loosen far smaller than, an increasing one, which subtracts, causes ejection
The serious contrast and mismatch of power and frictional resistance, push rod will expand with forging again separate, other to be contacted again with forging
The situation similar with this root push rod can also occur by root in push rod, and process is gone down until forging is ejected mold cavity repeatedly like this.
It follows that when ejecting forging using rigid push rod, with being continuously increased for ejecting force, some positions can first pine
It is dynamic, depart from after stress again again, the position loosened afterwards can be acted on by gap or pulsed superposed force, cause forging integrally by
Power is unbalanced；And the ejecting force at the forging position after stress can not be well matched with frictional resistance again, then by mould type
The influence of the factors such as chamber depth, contact area size, degree of lubrication, the strength of materials, makes forging demoulding process unstable, easily makes
Occur into phenomenons such as forging deformation, warpage, local be collapsed, or even tears.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of flexible demoulding dress of the large scale special-shaped structural forging of closed die forging
Put, elastic limit is reached by the compliant section that flexible compliant section and every push rod are set up in the push rod upper end of the device
When decrement it is equal, forging demoulding process is become more steady, it is not easily damaged.
In order to solve the above technical problems, the flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging of the present invention,
Including at least 3 push rods and base, through hole is provided with the anvil tool of the die forging, the lower end of the push rod is fixed on the base
Upper and its upper end is contacted through the through hole of anvil tool with the different bottom surfaces of the large scale special-shaped structural forging in mold cavity, described
The quantity of anvil tool through hole is equal with the quantity of push rod, it is characterised in that the push rod by the flexible compliant section in upper end and
There is rigid rigid section to constitute for lower end, and when ejecting the forging using the push rod, the compliant section of every push rod reaches bullet
Decrement during the property limit is equal.
Preferably, the quantity of the push rod is 3~10, preferably 5, a diameter of 20mm~80mm；It is described
Push rod flexibility segment length is 30mm~100mm, the push rod rigid length and flexible segment length ratio ξ >=1.
As the first preferred structure of the device, the every push rod by the top surface of compliant section directly with it is large scale special-shaped
The different bottom surfaces contact of structural forging, the cross-sectional area of every push rod is equal；
The length of the elastic modelling quantity of every push rod compliant section, length and rigid section meets following condition：
The elastic modelling quantity of every push rod compliant section is equal；
The equal length of every push rod compliant section；
The length of every push rod rigid section, the top surface of every push rod compliant section bottom surface different from large scale special-shaped structural forging
The distance of contact surface to die joint meet simultaneously：H11+h11=H12+h12=H13+h13=..., in formula, H11、H12、H13……
The length of respectively every push rod rigid section；h11、h12、h13... be respectively every push rod compliant section top surface with it is large scale special-shaped
Distance of the contact surface of the different bottom surfaces of structural forging to die joint.
As second of preferred structure of the device, set between the push rod compliant section and large scale special-shaped structural forging
There is cylindrical insert, every push rod is connect by the bottom surfaces directly different from large scale special-shaped structural forging of the insert on compliant section top surface
Touch, the cross-sectional area of each insert is equal, and the cross-sectional area of every push rod is equal；
The elastic modelling quantity and length and the length of rigid section of every push rod compliant section, and the thickness of insert meet following bar
Part：
The elastic modelling quantity of every push rod compliant section is equal；
The equal length of every push rod compliant section；
The equal length of every push rod rigid section；
The thickness of each insert, the contact surface of the top surface of each insert bottom surface different from large scale special-shaped structural forging is to dividing
The distance of die face is met simultaneously：δ1+h21=δ2+h22=δ3+h23=..., in formula, δ1、δ2、δ3... it is respectively each insert
Thickness；h21、h22、h23... the contact surface of the respectively top surface bottom surface different from large scale special-shaped structural forging of each insert is arrived
The distance of die joint.
As the third preferred structure of the device, the every push rod by the top surface of compliant section directly with it is large scale special-shaped
Cross-sectional area between the different bottom surfaces contact of structural forging, each described push rod is unequal, but the cross-sectional area of single push rod
Equal, the contact surface of the top surface bottom surface different from large scale special-shaped structural forging of different push rod compliant sections is different；
The compliant section of different push rods and the length of rigid section, the elastic modelling quantity of different push rod compliant sections meet following condition：
The equal length of different push rod compliant sections；
The length of different push rod rigid sections, the top surface bottom surface different from large scale special-shaped structural forging of different push rod compliant sections
The distance of contact surface to die joint meet simultaneously：H31+h31=H32+h32=H33+h33=..., in formula, H31、H32、H33……
The length of respectively different push rod rigid sections；h31、h32、h33... be respectively different push rod compliant sections top surface with it is large scale special-shaped
Distance of the contact surface of the different bottom surfaces of structural forging to die joint；
The elastic modelling quantity of different push rod compliant sections should be met：
In formula, E1、E2、E3... it is respectively the elastic modelling quantity of different push rod compliant sections；S1、S2、S3... it is respectively the horizontal stroke of different push rods
Sectional area.
Compared with prior art, beneficial effects of the present invention are as follows：
The flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging of the present invention, its push rod is flexible by upper end
Compliant section and lower end there is rigid rigid section to constitute.When ejecting the forging using the push rod, every push rod it is soft
Property section reach elastic limit first and decrement is equal, now push rod is in rigid state in theory；When a certain push rod
Ejecting force is more than forging in the frictional resistance of the position of this root push rod and mold cavity, and the position of forging will occur first
Loosen and produce certain displacement, and will be with forging due to being elastically compressed before with the compliant section of the push rod of the location contacts
The loosening at the position and elastic elongation makes push rod keep being contacted without producing gap all the time with forging, ejecting force will be with decrement
Change and to reduce but not disappear be zero；Meanwhile, stripper apparatus is not off operation, and is being continuously applied to power ejection forging,
The power and the just ejecting force of that push rod reduction newly applied will be gradually loaded on one or a few other push rod；Equally,
Due to the elastic reaction of push rod compliant section, one or a few other push rod can also engender and just that push rod identical
Situation is without departing from forging, and the stress of one or a few other push rod is not in discontinuous, the increased situation of pulsed, this
Process will at random occur and constantly carry out；With the increase of ejecting force, when total friction that total ejecting force of push rod is more than forging hinders
During power, forging overall will be loosened, and forging and the contact area on mold cavity surface will be gradually reduced, and frictional resistance is also therewith
Reduce, ejecting force will be matched well with frictional resistance, and making to act on the ejecting force on forging and frictional resistance tends to be flat
Weighing apparatus, forging is ejected mold cavity in the case of overall stress is more uniform, finally realizes each position when forging demoulding takes out
Steady movement；It is discontinuous, pulsed increase and ejecting force and frictional resistance to avoid using push rod stress during the rigidity demoulding
Mismatch, and forging discontinuity equalization, when forging takes out easily by mould cavity depth, contact area size, degree of lubrication,
The influence of the unfavorable factors such as the strength of materials, makes forging demoulding process unstable, easily causes forging deformation, warpage, local be collapsed,
The even generation of the phenomenon such as tear so that forging demoulding process becomes more steady and not easily damaged, forging demoulding process and
Quality of mold release has obtained very big improvement.
The present invention is arranged on the bottom of forging according to the size and features of shape of forging using 3~10 push rod distributions
Portion, it can be ensured that the ejection process of forging is steadily carried out.
Using three kinds of preferred structures design of the flexible stripper apparatus of the large scale special-shaped structural forging of above-mentioned closed die forging, equal energy
Ensure that the decrement of push rod compliant section is consistent, the ejecting force at each position of forging is evenly distributed.It is particularly preferred at second
In structure, insert is set between the push rod compliant section and the forging, is prevented from push rod compliant section upper surface and is damaged.
In above-mentioned all stripper apparatus structures, the diameter of the push rod is defined to 20mm~80mm, the push rod
Flexible segment length is defined to 30mm~100mm, the push rod rigid length and flexible segment length ratio ξ >=1, not only favorably
Installation is processed in equipment and forging is conveniently withstood, and enough support forces can be provided by rigid section.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the first preferred structure schematic diagram of flexible stripper apparatus of the present invention.
Fig. 2 is second of preferred structure schematic diagram of flexible stripper apparatus of the present invention.
Fig. 3 is the third preferred structure schematic diagram of flexible stripper apparatus of the present invention.
Embodiment
Embodiment 1：
Fig. 1 preferably ties for the first of the flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging of the present invention
Structure, the stripper apparatus is mainly made up of 5 push rods 20 and base 30.Large scale special-shaped structural forging 50 is in by upper forging die after shaping
11 and the mold cavity that surrounds of anvil tool 12 in, there is die joint 60, the anvil tool between upper forging die 11 and anvil tool 12
Provided with 5 through holes in 12, the lower ends of 5 push rods 20 be fixed on its upper end on base 30 through anvil tool 12 through hole with it is big
The different bottom surfaces contact of type polymorphic structure forging 50, the compliant section 21 and lower end that every push rod 20 is made up of upper end elastomeric material is firm
Property material composition rigid section 22 constitute, that is to say, that the compliant section 21 of every push rod 20 is flexible, every push rod 20 it is firm
Property section 22 have rigidity；Different bottom surfaces of the every push rod 20 by the top surface of compliant section 21 directly from large scale special-shaped structural forging 50
Contact, the cross-sectional area of every push rod 20 is equal, i.e., the compliant section 21 of every push rod 20 and the equal diameters of rigid section 22.
The length of the elastic modelling quantity of the every compliant section 21 of push rod 20, length and rigid section 22 meets following condition：
The elastic modelling quantity of the every compliant section 21 of push rod 20 is equal；
The equal length of the every compliant section 21 of push rod 20；
The length of the every rigid section 22 of push rod 20, top surface and the large scale special-shaped structural forging 50 of the every compliant section 21 of push rod 20
The distances of contact surface to die joint 60 of different bottom surfaces meet simultaneously：H11+h11=H12+h12=H13+h13=H14+h14=H15+
h15, in formula, H11、H12、H13、H14、H15The length of the respectively every rigid section 22 of push rod 20；h11、h12、h13、h14、h15Respectively
The top surface of the every compliant section 21 of push rod 20 and the contact surface of the different bottom surfaces of large scale special-shaped structural forging 50 to die joint 60 away from
From.
Embodiment 2：
Fig. 2 is second of preferred knot of the flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging of the present invention
Structure, the stripper apparatus is in the compliant section 21 of push rod 20 of the first preferred structure described in embodiment 1 and large scale special-shaped structural forging
Add cylindrical insert 40 between 50, every push rod 20 by the insert 40 on the top surface of compliant section 21 directly with large scale special-shaped knot
The cross-sectional area of insert 40 on the different bottom surfaces contact of structure forging 50, the every top surface of 20 compliant section of push rod 21 is equal, i.e., each
The diameter of insert 40 is equal, and the cross-sectional area of every push rod 20 is equal, i.e., the compliant section 21 and rigid section of every push rod 20
22 equal diameters.
The elastic modelling quantity and length and the length of rigid section 22 of every compliant section 21 of push rod 20, and the thickness of insert 40 are expired
It is enough lower condition：
The elastic modelling quantity of the every compliant section 21 of push rod 20 is equal；
The equal length of the every compliant section 21 of push rod 20；
The equal length of the every rigid section 22 of push rod 20.
The thickness of each insert 40, the contact with the different bottom surfaces of large scale special-shaped structural forging 50 of the top surface of each insert 40
Face is met simultaneously to the distance of die joint 60：δ1+h21=δ2+h22=δ3+h23=δ4+h24=δ5+h25, in formula, δ1、δ2、δ3、δ4、
δ5The thickness of respectively each insert 40；h21、h22、h23、h24、h25The top surface of respectively each insert 40 and large scale special-shaped structure
Distance of the contact surface of the different bottom surfaces of forging 50 to die joint 60.
Embodiment 3：
Fig. 3 preferably ties for the third of the flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging of the present invention
Structure, different bottom surfaces of the every push rod 20 by the top surface of compliant section 21 directly with large scale special-shaped structural forging 50 are contacted, should
The difference of stripper apparatus and the first preferred structure described in embodiment 1 is that the cross-sectional area between different push rods 20 is not
Equal, i.e., the diameter of different push rods 20 is unequal, but the cross-sectional area of single push rod 20 is equal, i.e., the compliant section of single push rod 20
21 and the equal diameters of rigid section 22.The top surface of the different compliant sections 21 of push rod 20 and the different bottom surfaces of large scale special-shaped structural forging 50
Contact surface it is different, it is therefore desirable to different elastomeric materials is selected to make the compliant section 21 of different push rods 20.
The compliant section 21 of different push rods 20 and the length of rigid section 22, the elastic modelling quantity of the different compliant sections 21 of push rod 20 are met
Following condition：
The equal length of the different compliant sections 21 of push rod 20；
The length of the different rigid sections 22 of push rod 20, top surface and the large scale special-shaped structural forging 50 of the different compliant sections 21 of push rod 20
The distances of contact surface to die joint 60 of different bottom surfaces meet simultaneously：H31+h31=H32+h32=H33+h33=H34+h34=H35+
h35, in formula, H31、H32、H33、H34、H35The length of the respectively different rigid sections 22 of push rod 20；h31、h32、h33、h34、h35Respectively
The top surface of the different compliant sections 21 of push rod 20 and the contact surface of the different bottom surfaces of large scale special-shaped structural forging 50 to die joint 60 away from
From.
The elastic modelling quantity of the different compliant sections 21 of push rod 20 should be met： In formula, E1、E2、E3、E4、E5The elastic modelling quantity of the respectively different compliant sections 21 of push rod 20；S1、S2、S3、S4、
S5The cross-sectional area of respectively different push rods 20.
In above-mentioned all stripper apparatus structures, when ejecting large scale special-shaped structural forging 50 using every push rod 20,
The decrement when compliant section 21 of every push rod 20 reaches elastic limit is equal, i.e.,：
△1=△2=△3=△4=△5, in formula, △1、△2、△3、△4、△5The respectively every compliant section 21 of push rod 20
Reach decrement during elastic limit.
In above-mentioned all stripper apparatus structures, according to the size and features of shape of forging, the push rod 20 can
Suitably to increase or decrease, the quantity of ordinary circumstance lower push rod 20 is constituted by 3~10, accordingly, the anvil tool 12 it is logical
Hole number is equal with the quantity of push rod 20, and present invention preferably employs 5 push rods 20.
In above-mentioned all stripper apparatus structures, the ratio of the every length of 20 rigid section of push rod 22 and the length of compliant section 21
ξ >=1, to ensure the stability of the demoulding, the every length of 20 compliant section of push rod 21 takes 30mm~100mm more appropriate, push rod 20
When diameter takes 20mm~80mm, processing is conducive to install and conveniently withstand large scale special-shaped structural forging 50.
Above-mentioned all stripper apparatus structures are equally applicable to forging die 11, when the large scale special-shaped structure of structural forging 50
It is more complicated when causing the forging die 11 also to occur sticking to mould, it can also install the stripper apparatus additional on upper forging die 11.
The step of being stripped using above-mentioned stripper apparatus is as follows：
Step one：Upper forging die 11 is first taken out, due to by the large scale special-shaped dead weight of structural forging 50 and the sticking to mould of anvil tool 12
Influence, large scale special-shaped structural forging 50 stayed in anvil tool 12, and silking is motionless.
Step 2：Start the stripper apparatus, base 30 runs parallel upwards applies thrust to every push rod 20, every top
Each through hole of the bar 20 along anvil tool 12 pushes up the bottom of large scale special-shaped structural forging 50, the compliant section 21 of every push rod 20 upwards
Elastic limit is compressed to first and decrement is equal.
Step 3：The base 30 continues ceaselessly to apply thrust to every push rod 20, when the ejection of a certain push rod 20
Power is more than large scale special-shaped structural forging 50 in the frictional resistance of the position of this root push rod 20 and the mold cavity of anvil tool 12, greatly
The position of type polymorphic structure forging 50 loosens and produces certain displacement first, and with this root push rod 20 of the location contacts
All the time forging is headed on without departing from the ejecting force of the push rod 20 reduces with the change of its decrement of compliant section 21；Base 30 is new
The power of application and the just ejecting force of that reduction of push rod 20 are then gradually loaded on one or a few other push rod 20；Its
Its one or a few push rod 20, which engenders, to be occurred and constantly enters at random with just that identical situation of push rod 20, this process
OK；
Step 4：The base 30 continues ceaselessly to apply thrust to every push rod 20, when total ejection of all push rods 20
When power is more than the total friction resistance of large scale special-shaped structural forging 50, large scale special-shaped structural forging 50 is overall to be loosened, large-scale different
Shape structural forging 50 and the contact area on the mold cavity surface of anvil tool 12 are gradually reduced, and frictional resistance also reduces therewith, effect
Ejecting force and frictional resistance in large scale special-shaped structural forging 50 are mutually matched and tended to balance, large scale special-shaped structural forging 50
The mold cavity of anvil tool 12 is steadily ejected in the case of overall stress is more uniform.
The gravity for the large scale special-shaped structural forging 50 that the frictional resistance is born comprising the corresponding push rod 20 and large-scale
The frictional force that polymorphic structure forging 50 is produced on the place position of the push rod 20 and the mold cavity surface of anvil tool 12.
Claims (7)
1. a kind of flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging, including at least 3 push rods and base, the mould
Through hole is provided with the anvil tool of forging, the lower end of the push rod is fixed on the through hole that on the base and its upper end passes through anvil tool
Contacted with the different bottom surfaces of the large scale special-shaped structural forging in mold cavity, the quantity of the anvil tool through hole and the quantity of push rod
It is equal, it is characterised in that the push rod by the flexible compliant section in upper end and lower end there is rigid rigid section to constitute, and adopt
When ejecting the forging with the push rod, the decrement when compliant section of every push rod reaches elastic limit is equal.
2. the flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging according to claim 1, it is characterised in that described
The quantity of push rod is 3~10.
3. the flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging according to claim 2, it is characterised in that described
The quantity of push rod is 5.
4. the flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging according to claim 1, it is characterised in that described
A diameter of 20mm~80mm of push rod, the flexible segment length of the push rod is 30mm~100mm, the push rod rigid length and soft
Ratio ξ >=1 of property segment length.
5. the flexible stripper apparatus of the large scale special-shaped structural forging of the closed die forging according to any one of Claims 1 to 4, it is special
Levy and be, the every push rod is contacted by the top surface bottom surfaces directly different with large scale special-shaped structural forging of compliant section, every
The cross-sectional area of push rod is equal；
The length of the elastic modelling quantity of every push rod compliant section, length and rigid section meets following condition：
The elastic modelling quantity of every push rod compliant section is equal；
The equal length of every push rod compliant section；
The length of every push rod rigid section, the top surface of every push rod compliant section bottom surface different from large scale special-shaped structural forging connects
Contacting surface is met simultaneously to the distance of die joint：H11+h11=H12+h12=H13+h13=..., in formula, H11、H12、H13... respectively
For the length of every push rod rigid section；h11、h12、h13... it is respectively the top surface and large scale special-shaped structure of every push rod compliant section
Distance of the contact surface of the different bottom surfaces of forging to die joint.
6. the flexible stripper apparatus of the large scale special-shaped structural forging of the closed die forging according to any one of Claims 1 to 4, it is special
Levy and be, cylindrical insert is provided between the push rod compliant section and large scale special-shaped structural forging, every push rod passes through soft
Property section top surface on insert bottom surfaces directly different with large scale special-shaped structural forging contact, the cross-sectional area of each insert is equal,
The cross-sectional area of every push rod is equal；
The elastic modelling quantity and length and the length of rigid section of every push rod compliant section, and the thickness of insert meet following condition：
The elastic modelling quantity of every push rod compliant section is equal；
The equal length of every push rod compliant section；
The equal length of every push rod rigid section；
The thickness of each insert, the contact surface of the top surface of each insert bottom surface different from large scale special-shaped structural forging to die joint
Distance meet simultaneously：δ1+h21=δ2+h22=δ3+h23=..., in formula, δ1、δ2、δ3... it is respectively the thickness of each insert
Degree；h21、h22、h23... be respectively each insert top surface bottom surface different from large scale special-shaped structural forging contact surface to divide
The distance of die face.
7. the flexible stripper apparatus of the large scale special-shaped structural forging of the closed die forging according to any one of Claims 1 to 4, it is special
Levy and be, the every push rod is contacted by the top surface bottom surfaces directly different with large scale special-shaped structural forging of compliant section, described
Cross-sectional area between each push rod is unequal, but the cross-sectional area of single push rod is equal, the top surface of different push rod compliant sections with
The contact surface of the different bottom surfaces of large scale special-shaped structural forging is different；
The compliant section of different push rods and the length of rigid section, the elastic modelling quantity of different push rod compliant sections meet following condition：
The equal length of different push rod compliant sections；
The length of different push rod rigid sections, the top surface bottom surfaces different from large scale special-shaped structural forging of different push rod compliant sections connects
Contacting surface is met simultaneously to the distance of die joint：H31+h31=H32+h32=H33+h33=..., in formula, H31、H32、H33... respectively
For the length of different push rod rigid sections；h31、h32、h33... it is respectively the top surface and large scale special-shaped structure of different push rod compliant sections
Distance of the contact surface of the different bottom surfaces of forging to die joint；
The elastic modelling quantity of different push rod compliant sections should be met：Formula
In, E1、E2、E3... it is respectively the elastic modelling quantity of different push rod compliant sections；S1、S2、S3... it is respectively the transversal of different push rods
Area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333456.3A CN106955961A (en) | 2017-05-12 | 2017-05-12 | The flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333456.3A CN106955961A (en) | 2017-05-12 | 2017-05-12 | The flexible stripper apparatus of the large scale special-shaped structural forging of closed die forging |
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| CN106955961A true CN106955961A (en) | 2017-07-18 |
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| CN (1) | CN106955961A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4741197A (en) * | 1986-04-25 | 1988-05-03 | Aluminum Company Of America | Ejection of superplastically formed part with minimum distortion |
| EP1547701A2 (en) * | 2003-06-12 | 2005-06-29 | General Motors Corporation | Extraction system for hot formed parts |
| CN203281737U (en) * | 2013-06-18 | 2013-11-13 | 四川中邦模具有限公司 | Mould capable of guaranteeing main fin quality of radiation fin |
| CN204504106U (en) * | 2015-01-05 | 2015-07-29 | 滁州凯旋模具制造有限公司 | A kind of automobile die with mould emptier |
| CN205270683U (en) * | 2015-12-15 | 2016-06-01 | 中信戴卡股份有限公司 | Forge wheel cut -out press and move back waste material device |
| CN205414142U (en) * | 2016-03-17 | 2016-08-03 | 滁州市精华模具制造有限公司 | Stamping die demoulding mechanism who easily overhauls |
| CN205599770U (en) * | 2016-03-15 | 2016-09-28 | 浙江舜仕汽车技术有限公司 | Fixed bolster forming die |
| CN106513505A (en) * | 2016-12-29 | 2017-03-22 | 重庆腾增模具制造有限公司 | Arc-shaped multi-cavity shell part stamping die |
-
2017
- 2017-05-12 CN CN201710333456.3A patent/CN106955961A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4741197A (en) * | 1986-04-25 | 1988-05-03 | Aluminum Company Of America | Ejection of superplastically formed part with minimum distortion |
| EP1547701A2 (en) * | 2003-06-12 | 2005-06-29 | General Motors Corporation | Extraction system for hot formed parts |
| CN203281737U (en) * | 2013-06-18 | 2013-11-13 | 四川中邦模具有限公司 | Mould capable of guaranteeing main fin quality of radiation fin |
| CN204504106U (en) * | 2015-01-05 | 2015-07-29 | 滁州凯旋模具制造有限公司 | A kind of automobile die with mould emptier |
| CN205270683U (en) * | 2015-12-15 | 2016-06-01 | 中信戴卡股份有限公司 | Forge wheel cut -out press and move back waste material device |
| CN205599770U (en) * | 2016-03-15 | 2016-09-28 | 浙江舜仕汽车技术有限公司 | Fixed bolster forming die |
| CN205414142U (en) * | 2016-03-17 | 2016-08-03 | 滁州市精华模具制造有限公司 | Stamping die demoulding mechanism who easily overhauls |
| CN106513505A (en) * | 2016-12-29 | 2017-03-22 | 重庆腾增模具制造有限公司 | Arc-shaped multi-cavity shell part stamping die |
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