CN206632283U - Longitudinal split prestressing force forging mold - Google Patents
Longitudinal split prestressing force forging mold Download PDFInfo
- Publication number
- CN206632283U CN206632283U CN201720283133.3U CN201720283133U CN206632283U CN 206632283 U CN206632283 U CN 206632283U CN 201720283133 U CN201720283133 U CN 201720283133U CN 206632283 U CN206632283 U CN 206632283U
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- CN
- China
- Prior art keywords
- cavity plate
- prestressing force
- forging mold
- longitudinal split
- mold according
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of longitudinal split prestressing force forging mold, including the cavity plate with blank forming cavity and cooperatively form prestressed prestressed members different along cavity plate genesis analysis from cavity plate；Using longitudinal layered prestressed structure, different prestressing force can be produced and then different prestress distributions is longitudinally formed in cavity plate, it is distributed by the vertical stress amplitude that adjusts upward, stress distribution that can be on active balance vertical direction, and then the resistance of deformation suffered by female die for forming is better balanced, the stress suffered by cavity plate is more effectively reduced, can preferably extend the mold use life-span.
Description
Technical field
A kind of forging mold is the utility model is related to, more particularly to a kind of longitudinal split prestressing force forging mold.
Background technology
For techniques such as cold forging, cold extrusion, powder metallurgy, due to shaping at room temperature, blank deformation drag is huge, mould
The pressure that mold cavity surface is born is high, and common monolithic construction mould is easily cracked to be caused to destroy, and therefore, in engineering commonly uses pre-
Stress assembling die, by being provided with multilayer prestress annular on the outside of mould, serve the effect for extending die life.Prestressing force
It is radially and tangentially both direction in die horizontal face, the vertical plane inner punch direction of extrusion is longitudinal direction.The multilayer of prior art is pre-
The mould structure of NOL ring, its multilayer prestress annular are in radially donut structure in the horizontal plane.This prestressed structure shape
Formula adds radially prestressed size, has delayed the life-span of mould to a certain extent.However, for some shapes along vertically
Direction transition violent forging or extrusion, its blank cause answering suffered by wall of die cavity to the reaction force of mold cavity
Power size is very big along longitudinal gap, the stress distribution that the prestress annular of longitudinal monoblock type can not be on active balance vertical direction.
Therefore, it is necessary to which a kind of longitudinal split prestressing force forging mold, can produce different prestressing force, by being answered on longitudinal direction
The adjustment of power amplitude distribution, stress distribution that can be on active balance vertical direction, and then be better balanced suffered by female die for forming
Resistance of deformation, more effectively reduce cavity plate suffered by stress, can preferably extend the mold use life-span.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of longitudinal split prestressing force forging mold, can produce
Different prestressing force, by the adjustment of longitudinal upper stress amplitude distribution, stress distribution that can be on active balance vertical direction is entered
And the resistance of deformation suffered by female die for forming is better balanced, the stress suffered by cavity plate is more effectively reduced, can preferably extend mould
The service life of tool.
Longitudinal split prestressing force forging mold of the present utility model, including the cavity plate with blank forming cavity and match somebody with somebody with cavity plate
Close and form prestressed prestressed members different along cavity plate genesis analysis；
Further, the prestressed member is multiple prestress annulars along the longitudinal layered setting in cavity plate outer surface；
Further, the prestress annular is set with cavity plate interference fit；
Further, multiple prestress annulars are different from the magnitude of interference that cavity plate coordinates respectively；
Further, the material of the multiple prestress annular is different；
Further, the multiple prestress annular material can be one kind in 45 steel, D2 mould steel, hard alloy respectively；
Further, the prestress annular coordinated respectively with cavity plate the radially multilayer annulus knot of radially concentric circles in the horizontal plane
Structure；
Further, the prestress annular inner shape is adapted with cavity plate outer shape；
Further, in addition to the recipient with blank inner chamber that is arranged on concave die cavity, the blank of the recipient
Inner chamber connects setting with concave die cavity.
The beneficial effects of the utility model：Longitudinal split prestressing force forging mold of the present utility model, use are longitudinal layered
Prestressed structure, different prestressing force can be produced and then different prestress distributions is longitudinally formed in cavity plate, pass through longitudinal direction
Upper adjustment stress amplitude distribution, stress distribution that can be on active balance vertical direction, and then female die for forming institute is better balanced
The resistance of deformation received, the stress suffered by cavity plate is more effectively reduced, can preferably extend the mold use life-span.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of multiple prestress annulars of the present utility model；
Fig. 3 is concave die cavity cross-sectional view.
Embodiment
Fig. 1 is structural representation of the present utility model；Fig. 2 is the structural representation of multiple prestress annulars of the present utility model
Figure；
Fig. 3 is concave die cavity cross-sectional view；As shown in the figure：Longitudinal split prestressing force forge mould of the present embodiment
Tool, including the cavity plate 4 with blank forming cavity and from cavity plate 4 cooperatively form along the genesis analysis of cavity plate 4 it is different it is prestressed it is pre- answer
Power part；" cavity plate longitudinal direction " refers to the direction parallel with blank forming cavity, and the prestress annular in the vertical direction of prior art is whole
Body, its magnitude of interference size in the vertical is basically identical, so the prestressing force applied for internal layer cavity plate 4, its stress amplitude
It is nonadjustable along longitudinal direction；Fig. 2 is the schematic diagram of longitudinal layered prestressed structure.For the die cavity of cavity plate 4 shown in Fig. 3,
In forming process, stress suffered by fillet area A and B is maximum, and stress suffered by chamfered region is small so that along the stress amplitude of genesis analysis
Value difference is not very big.Therefore, 4 regions substantially are divided into by longitudinal upper stress distribution size, each region are set different
Prestress annular, different size of prestressing force along genesis analysis is obtained with this, so as to be better balanced suffered by female die for forming 4
Resistance of deformation, more effectively reduce the stress suffered by cavity plate 4.Therefore, the utility model is produced by prestressed member by level
Different prestressing force be longitudinally formed different prestress distributions in cavity plate 4, stress distribution that can be on active balance vertical direction is entered
And the resistance of deformation suffered by female die for forming 4 is better balanced, the stress suffered by cavity plate 4 is more effectively reduced, can preferably be extended
The mold use life-span.
In the present embodiment, the prestressed member is multiple prestress annulars along the longitudinal layered setting in the outer surface of cavity plate 4 (as schemed
Prestress annular (5,6,7,8) in 1)；Single individual prestress annular is radially arranged relative to cavity plate 4, the longitudinal direction of cavity plate 4 (relative to
It is tangential in horizontal plane) on form the multilayer cyclic structure that is made up of multiple prestress annulars, and every layer of prestress annular is with relatively only
Vertical formal distribution is in the outer surface of cavity plate 4, that is to say, that in forging process, the prestressing force that cavity plate 4 is subject to is respectively by longitudinal direction
Every layer of prestress annular produce.Stress of the number and subdivision position of prestress annular according to suffered by cavity plate in forming process 4 is determined
Fixed, finite element analysis molding by extrusion can obtain stress distribution suffered by cavity plate 4, in this, as the installation warrants of prestress annular.
In the present embodiment, the prestress annular (5,6,7,8) is set with the interference fit of cavity plate 4；By prestress annular (5,6,7,
8) outer surface of cavity plate 4 is socketed on after heating, prestress annular is just fixed on cavity plate 4 after cooling.
In the present embodiment, multiple prestress annulars (5,6,7,8) are different from the magnitude of interference that cavity plate 4 coordinates respectively；To on longitudinal direction
Each different prestress annular sets the different magnitudes of interference, and the magnitude of interference between each ring and cavity plate 4 is in different size, so with it is recessed
Caused elastic deformation is different after mould 4 assembles, and also just generates different prestressing force, so as to realize longitudinal upper stress amplitude point
The adjustment of cloth, magnitude of interference size are determined by acting on the stress on the inwall of cavity plate 4.
In the present embodiment, the material of the multiple prestress annular (5,6,7,8) is different；The prestress annular of prior art is one
Individual entirety, the material used in it are homogeneous material, can not realize change design of material in the vertical, it is impossible to substantially effectively utilize material
The intensity surplus of material, therefore, in the present embodiment, each prestressing force can be manufactured using different materials, different materials
With different modulus of elasticity, this also make it that caused elastic deformation is different after being assembled from cavity plate 4, so as to realize the upper difference in longitudinal direction
Prestress distribution.This realize in the vertical becomes design of material, can substantially effectively utilize the intensity surplus of material.
In the present embodiment, the multiple prestress annular material (5,6,7,8) can be 45 steel, D2 mould steel, hard conjunction respectively
One kind in gold；Also can by set the magnitude of interference of different sizes and combine select different mold materials so that it is each it is pre- should
Elastic deformation of different sizes is produced between power ring and the contact surface of cavity plate 4, so as to produce the different prestressing force along genesis analysis.
In the present embodiment, the prestress annular (5,6,7,8) coordinated respectively with cavity plate 4 is radially radially concentric in the horizontal plane
Round multilayer circular ring structure；Multilayer prestress annular (5,6,7,8) is in radially in the horizontal plane donut structure, this prestressing force
Structure type adds radially prestressed size, has delayed the life-span of mould to a certain extent, realizes horizontal inside
Prestressing force radially strengthens and longitudinal prestressing balance.
In the present embodiment, prestress annular (5,6,7, the 8) inner shape is adapted with the outer shape of cavity plate 4；It is so that pre-
The balance of stress and resistance of deformation is more uniform, greatly reduces stress amplitude fluctuation, so as to extend the tired of the entirety of internal layer cavity plate 4
The labor life-span.
In the present embodiment, in addition to the recipient 3 with blank inner chamber being arranged on the die cavity of cavity plate 4, the recipient 3
Blank inner chamber connect setting with the die cavity of cavity plate 4；The utility model is by drift 1, blank 2, recipient 3, cavity plate 4, prestress annular
(5,6,7,8) form；Wherein prestress annular (5,6,7,8) is respectively with cavity plate 4 to be interference fitted, and the mistake between each ring and cavity plate 4
The amount of being full of is in different size, and its size is determined by acting on the stress on the inwall of cavity plate 4；Mould used in prestress annular (5,6,7,8)
Tool material can respectively specify that the prestressing force size that specific selection provides required for determines, general optional 45 steel, D2 moulds
Steel, hard alloy etc..Its operation principle is：Forcing press upper table face is moved straight down, drives drift 1 to move downward, right
Blank 2 is extruded, and blank is in the internal shaping of cavity plate 4.Prestress annular (5,6,7,8) is respectively interference fit with cavity plate 4, by setting
Put the magnitude of interference of different sizes and by selecting different mold materials so that each prestress annular and the contact surface of cavity plate 4 it
Between produce elastic deformation of different sizes, so as to produce the different prestressing force along genesis analysis.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (9)
- A kind of 1. longitudinal split prestressing force forging mold, it is characterised in that：Including the cavity plate with blank forming cavity and and cavity plate Cooperatively form prestressed prestressed members different along cavity plate genesis analysis.
- 2. longitudinal split prestressing force forging mold according to claim 1, it is characterised in that：The prestressed member is along recessed Multiple prestress annulars of the longitudinal layered setting in mould outer surface.
- 3. longitudinal split prestressing force forging mold according to claim 2, it is characterised in that：The prestress annular and cavity plate Interference fit is set.
- 4. longitudinal split prestressing force forging mold according to claim 3, it is characterised in that：Multiple prestress annulars respectively with The magnitude of interference that cavity plate coordinates is different.
- 5. longitudinal split prestressing force forging mold according to claim 4, it is characterised in that：The multiple prestress annular Material is different.
- 6. longitudinal split prestressing force forging mold according to claim 5, it is characterised in that：The multiple prestress annular material Material can be one kind in 45 steel, D2 mould steel, hard alloy respectively.
- 7. longitudinal split prestressing force forging mold according to claim 6, it is characterised in that：Coordinate respectively with cavity plate pre- The NOL ring radially multilayer circular ring structure of radially concentric circles in the horizontal plane.
- 8. longitudinal split prestressing force forging mold according to claim 7, it is characterised in that：Shape on the inside of the prestress annular Shape is adapted with cavity plate outer shape.
- 9. longitudinal split prestressing force forging mold according to claim 8, it is characterised in that：Also include being arranged at cavity plate type The recipient with blank inner chamber on chamber, the blank inner chamber of the recipient connect setting with concave die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720283133.3U CN206632283U (en) | 2017-03-22 | 2017-03-22 | Longitudinal split prestressing force forging mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720283133.3U CN206632283U (en) | 2017-03-22 | 2017-03-22 | Longitudinal split prestressing force forging mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206632283U true CN206632283U (en) | 2017-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720283133.3U Expired - Fee Related CN206632283U (en) | 2017-03-22 | 2017-03-22 | Longitudinal split prestressing force forging mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206632283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862459A (en) * | 2017-03-22 | 2017-06-20 | 重庆交通大学 | With the prestressed assembling die of longitudinal multilayer |
-
2017
- 2017-03-22 CN CN201720283133.3U patent/CN206632283U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862459A (en) * | 2017-03-22 | 2017-06-20 | 重庆交通大学 | With the prestressed assembling die of longitudinal multilayer |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20190322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |