CN106180411A - The diel of prevention press-bending part resilience - Google Patents
The diel of prevention press-bending part resilience Download PDFInfo
- Publication number
- CN106180411A CN106180411A CN201610740287.0A CN201610740287A CN106180411A CN 106180411 A CN106180411 A CN 106180411A CN 201610740287 A CN201610740287 A CN 201610740287A CN 106180411 A CN106180411 A CN 106180411A
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- China
- Prior art keywords
- angle
- side form
- bending part
- press
- diel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention relates to diel field, particularly to activity diel, including punch, the angle between side forming surface and the end forming surface of punch constitutes anti-rebound angle α；The die coordinated with punch includes side form and bed die, between outside and the side form bearing of side form hinged by jointed shaft, when side form rotates, angle between forming surface and the bottom modeling face of bed die constitutes angle of bend γ inside it, and described angle of bend γ is between anti-rebound angle α and demoulding angle β.In design just in view of springback angle △ α during mould, actual flexion angle when press-bending part A molding in die cavity is consistent with anti-rebound angle α, and when after treating that press-bending part A takes out from die cavity, treat that press-bending part A its actual angle of bend after a small amount of resilience is just exactly equal to theoretical angle of bend, thus thoroughly solve the elastic deformation impact on press-bending part, ensure angle of bend accurate of press-bending part, improve product quality.
Description
Technical field
The present invention relates to diel field, particularly to activity diel.
Background technology
The deformation of general press-bending part comprises elastic deformation and plastic deformation.After external force removes, plastic deformation is saved down
Come, and elastic deformation will make press-bending part restore to the original state, produce rebound phenomenon.Result makes press-bending part angle of bend with bending radius not
Consistent with bending die again.The change of angle of bend is commonly used springback angle △ α and is represented.Springback angle makes finger pressure comer pieces depart from press-bending
Angle after mould and the difference of bending die angle.The especially rebound phenomenon of thin wall shape housing press-bending part is even more serious, angle of bend
Degree deviation big (actual flexion angle is more than theoretical angle of bend), causes product quality poor.
Summary of the invention
It is an object of the invention to provide a kind of angle of bend degree of accuracy high, the stamping die of matter measured prevention press-bending part resilience
Tool.
For achieving the above object, present invention employs techniques below scheme: a kind of diel preventing press-bending part resilience,
Including punch, the angle between side forming surface and the end forming surface of punch constitutes anti-rebound angle α；The die bag coordinated with punch
Include side form and bed die, hinged by jointed shaft between outside and the side form bearing of side form, side form rotate time its inside forming surface and the end
Angle between the bottom modeling face of mould constitutes angle of bend γ, and described angle of bend γ is positioned at anti-rebound angle α and demoulding angle β
Between.
Owing to using above technical scheme: in design just in view of springback angle △ α during mould, treat that press-bending part A is in die cavity
Actual flexion angle during molding is consistent with anti-rebound angle α, and when after treating that press-bending part A takes out from die cavity, treats press-bending part A
After a small amount of resilience, its actual angle of bend is just exactly equal to theoretical angle of bend, thus thoroughly solves elastic deformation to press-bending part
Impact, it is ensured that the angle of bend of press-bending part accurate, improve product quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2,3 it is the use state diagram of Fig. 1.
Detailed description of the invention
A kind of diel preventing press-bending part resilience, including punch 10, the side forming surface 11 of punch 10 and end forming surface
Angle between 12 constitutes anti-rebound angle α；The die coordinated with punch 10 includes side form 20 and bed die 30, the outside of side form 20
And hinged by jointed shaft between side form bearing 40, the bottom modeling face 31 of forming surface 21 and bed die 30 inside it when side form 20 rotates
Between angle constitute angle of bend γ, described angle of bend γ is between anti-rebound angle α and demoulding angle β.
Bed die 30 and side form 20 enclose the die cavity for accommodating upper mold 10, treat that the material of press-bending part A is fixed, diel
Each parameter fixing in the case of springback angle △ α be changeless, this value is can to calculate or learnt by experiment.
Theoretical angle of bend-springback angle △ the α, the demoulding angle β in the application of anti-rebound angle α in the application=treat press-bending part A be for
Guarantee upper mold 10 is smooth and easy to be put into die cavity or departs from from die cavity, so demoulding angle β is more than anti-rebound angle α.This Shen
In please, angle of bend γ be a fixed value but a variate, is the rotation by side form 20, changes the big of angle of bend γ
Little, concrete is that upper mold 10 is smooth and easy puts into die cavity or during disengaging from die cavity, and angle of bend γ is equal to demoulding angle β；And work as
When upper mold 10 and lower mold 20 matched moulds, angle of bend γ is equal to anti-rebound angle α.
Treating that the material of press-bending part A is fixed, in the case of each parameter of diel is fixing, springback angle △ α is to immobilize
, this value is can to calculate or learnt by experiment.
It is as follows in conjunction with accompanying drawing 1-3 concrete analysis: when upper mold 10 separates with lower mold 20, angle of bend γ is equal to demoulding angle β,
And more than anti-rebound angle α, it is ensured that upper mold 10 enters lower mold 20 intracavity smoothly；And when upper mold 10 and lower mold 20 matched moulds, curved
Bent angle γ is equal to anti-rebound angle α, and now die cavity and upper mold 10 cooperate and treat press-bending part A and be shaped.The application exists
Design upper mold 10 anti-rebound angle α time just in view of springback angle △ α, after press-bending part A molding, time also in die cavity its reality
Angle of bend is consistent with anti-rebound angle α, and when after treating that press-bending part A takes out from die cavity, treats that press-bending part A is through a small amount of resilience
Its actual angle of bend is just exactly equal to theoretical angle of bend afterwards, thus thoroughly solves the elastic deformation impact on press-bending part, it is ensured that
The angle of bend of press-bending part accurate, improves product quality.
The outside of described side form 20 arranges the groove 41 arranged on projection 22 and side form bearing 40 and constitutes hinged rotation and join
Close.
The inner side forming surface 21 of described side form 20 includes superposed edge-on forming surface 211 and is positioned at the corner of bottom
Being transited into profile 212, when upper mold 10 and lower mold 20 matched moulds, corner is transited into profile 212 postpone rank concordant with bottom modeling face 31
Connect.Now, angle of bend γ between inner side forming surface 21 and bottom modeling face 31 is exactly equal to anti-rebound angle α.Such as Fig. 1-3,
In this structure, upper mold 10 is during die cavity matched moulds, and upper mold 10 extrudes corner and is transited into profile 212, thus drives side form 20
Rotating, during being somebody's turn to do, angle of bend γ is gradually reduced, until fitting like a glove with anti-rebound angle α.Upper mold 10 in die cavity to
During the upper demoulding, gradually releasing owing to upper mold 10 diagonal section is transited into profile 212 extruding force, side form 20 turns to initial position
Putting, bent angle γ is gradually increased in the process, until equal with demoulding angle β, thus ensure the smooth and easy demoulding of upper mold 10.This knot
Structure utilizes the power of the downward matched moulds of upper mold 10 cleverly, it is not necessary to additionally increase driver element, simplifies the structure of whole mould, contracting
Subtract production cost.
Described projection 22 is arranged on the outer lower portion of side form 20, and projection 22 is the face of cylinder away from the cylinder of side form 20, side
The bottom land cross section of the groove 41 arranged on mould bearing 40 is the face of cylinder.
Described side form 20 is made up of the side form unit 23 of two or more independence, and multiple side form unit 23 are enclosed in the end successively
The periphery of mould 30, each side form unit 23 all constitutes hinged cooperation with side form bearing 40.It is not required to all of side form unit
23 can be movable, as long as can guarantee that upper mold 10, smooth and easy to fall into die cavity the most permissible.
Described bed die 30 bottom is provided with the lifting body 60 for driving it to move up and down, at described lifting body 60
When a high position, bottom modeling face 31 is concordant with the upper surface of side form 20；When lifting body 60 is in low level, bottom modeling face 31 with
Corner is transited into the concordant linking of postponing of profile 212, as shown in Figure 3.During as in figure 2 it is shown, lifting body 60 is in a high position, bed die becomes
The upper surface of profile 31 and side form 20 carries out torr and supports and treat press-bending part A, and upper mold 10 is resisted against to be treated on press-bending part A, then bed die 20 He
Upper mold 10 is moved downwardly together, treats press-bending part A gradually molding.Thus prevent from treating that press-bending part A occurs dislocation in press bending process, partially
The phenomenon such as tiltedly, it is not necessary to treating press-bending part A is fixed, helps, and simplifies mould structure, cost-effective, real Ying Xingqiang.
The outside of described side form 20 arranges baffle plate 50, when outer side elevation 22 and the baffle plate 50 of side form 20 recline, and edge-on one-tenth
The mobile route of profile 211 and punch 10 is in dodges position.
Enclosing rectangular cavity between baffle plate 50 and side form bearing 40, bed die 30, side form 20 is positioned at this rectangular cavity；Work as upper mold
10 when separating with lower mold 20, and side form 20 sidewall abuts on baffle plate 50, the angle between its another sidewall and bottom modeling face 31
Consistent with the springback angle △ α treating press-bending part A；When upper mold 10 and lower mold 20 matched moulds, side form 20 sidewall abuts on bed die 30, its
Angle between another sidewall with baffle plate 50 is consistent with the springback angle △ α treating press-bending part A.Side form 20 is carried out spacing by baffle plate 50,
The activity interval of side form 20 is exactly to enclose rectangular cavity between baffle plate 50 and side form bearing 40, bed die 30.This structure makes upper mold
10 when separating with lower mold 20, and side form 20 sidewall abuts on baffle plate 50, now angle of bend γ=demoulding angle β=anti-rebound angle
α+springback angle △ α, when upper mold 10 and lower mold 20 matched moulds, angle of bend γ=anti-rebound angle α, it is ensured that side form 20 is at two states
Lower freely switch.
Described bed die 30 is provided with for treating the alignment pin 32 that press-bending part A carries out positioning, and alignment pin 32 projection is the end of at
The top in mold forming face 31, the end forming surface 12 of described upper mold 10 is provided with the hole/groove 13 for accommodating alignment pin 32.Logical
Often treat to have fabrication hole on press-bending part A, alignment pin 32 is inserted in treating press-bending part A fabrication hole, treat press-bending part A and determined
Position, in insertion hole, the upper end/groove 13 of alignment pin 32, it is ensured that the end forming surface 12 of upper mold 10 with treat that press-bending part A fits tightly.Fixed
Position pin 32 is treated press-bending part A and is positioned reliably, improves press-bending quality.
Claims (8)
1. the diel preventing press-bending part resilience, it is characterised in that: include punch (10), the side forming surface of punch (10)
(11) angle and between end forming surface (12) constitutes anti-rebound angle α；The die coordinated with punch (10) includes side form (20)
With bed die (30), hinged by jointed shaft between outside and the side form bearing (40) of side form (20), side form (20) rotate time its inside
Angle between the bottom modeling face (31) of forming surface (21) and bed die (30) constitutes angle of bend γ, and described angle of bend γ is positioned at
Between anti-rebound angle α and demoulding angle β.
The diel of prevention press-bending part resilience the most according to claim 1, it is characterised in that: described side form (20)
Outside arranges projection (22) groove (41) that arrange upper with side form bearing (40) and constitutes hinged being rotatably assorted.
The diel of prevention press-bending part resilience the most according to claim 1 and 2, it is characterised in that: described side form
(20) inner side forming surface (21) includes superposed edge-on forming surface (211) and is positioned at the corner of bottom and is transited into profile
(212), when upper mold (10) and lower mold (20) matched moulds, corner is transited into profile (212) postpone rank concordant with bottom modeling face (31)
Connect.
The diel of prevention press-bending part resilience the most according to claim 3, it is characterised in that: described projection (22) sets
Putting the outer lower portion in side form (20), projection (22) is the face of cylinder away from the cylinder of side form (20), and side form bearing (40) is upper to be arranged
The bottom land cross section of groove (41) be the face of cylinder.
The diel of prevention press-bending part resilience the most according to claim 4, it is characterised in that: described side form (20) by
Side form unit (23) composition of two or more independence, multiple side form unit (23) are enclosed in the periphery of bed die (30) successively, each
Individual side form unit (23) all constitutes hinged cooperation with side form bearing (40).
The diel of prevention press-bending part resilience the most according to claim 5, it is characterised in that: under described bed die (30)
Portion is provided with the lifting body (60) for driving it to move up and down, when described lifting body (60) is in a high position, and bottom modeling
Face (31) is concordant with the upper surface of side form (20)；When lifting body (60) is in low level, bottom modeling face (31) and corner transition
The concordant linking of postponing of forming surface (212).
The diel of prevention press-bending part resilience the most according to claim 6, it is characterised in that: described side form (20)
Outside arranges baffle plate (50), when the outer side elevation (22) of side form (20) and baffle plate (50) recline, and edge-on forming surface (211) and punch
(10) mobile route is in dodges position.
The diel of prevention press-bending part resilience the most according to claim 7, it is characterised in that: on described bed die (30)
Being provided with for treating the alignment pin (32) that press-bending part A carries out positioning, alignment pin (32) is protruding in the top of bottom modeling face (31),
The end forming surface (12) of described upper mold (10) is provided with the hole/groove (13) for accommodating alignment pin (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610740287.0A CN106180411A (en) | 2016-08-26 | 2016-08-26 | The diel of prevention press-bending part resilience |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610740287.0A CN106180411A (en) | 2016-08-26 | 2016-08-26 | The diel of prevention press-bending part resilience |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106180411A true CN106180411A (en) | 2016-12-07 |
Family
ID=57526194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610740287.0A Pending CN106180411A (en) | 2016-08-26 | 2016-08-26 | The diel of prevention press-bending part resilience |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106180411A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2649213Y (en) * | 2003-09-23 | 2004-10-20 | 河南新飞电器有限公司 | Bending die |
| CN200995243Y (en) * | 2006-09-25 | 2007-12-26 | 佛山市顺德区汉达精密电子科技有限公司 | Bending mould structure |
| CN102601193A (en) * | 2012-03-14 | 2012-07-25 | 吉林大学 | Method for controlling rebounding of high-strength steel by aid of elliptical-arc-shaped fillet of female die |
| CN103008474A (en) * | 2012-12-25 | 2013-04-03 | 惠阳航空螺旋桨有限责任公司 | Mould for processing sheet metal pipe clamp |
| CN103920820A (en) * | 2013-12-31 | 2014-07-16 | 祥鑫科技股份有限公司 | Die with bending rebound angular swing compensation structure |
| CN204262179U (en) * | 2014-11-20 | 2015-04-15 | 上海奥林汽车配件有限公司 | A kind of automobile support assembly flanging die with springback compensation |
| CN205967090U (en) * | 2016-08-26 | 2017-02-22 | 合肥市华林模具有限公司 | A stamping die who kick -backs prevents to bend |
-
2016
- 2016-08-26 CN CN201610740287.0A patent/CN106180411A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2649213Y (en) * | 2003-09-23 | 2004-10-20 | 河南新飞电器有限公司 | Bending die |
| CN200995243Y (en) * | 2006-09-25 | 2007-12-26 | 佛山市顺德区汉达精密电子科技有限公司 | Bending mould structure |
| CN102601193A (en) * | 2012-03-14 | 2012-07-25 | 吉林大学 | Method for controlling rebounding of high-strength steel by aid of elliptical-arc-shaped fillet of female die |
| CN103008474A (en) * | 2012-12-25 | 2013-04-03 | 惠阳航空螺旋桨有限责任公司 | Mould for processing sheet metal pipe clamp |
| CN103920820A (en) * | 2013-12-31 | 2014-07-16 | 祥鑫科技股份有限公司 | Die with bending rebound angular swing compensation structure |
| CN204262179U (en) * | 2014-11-20 | 2015-04-15 | 上海奥林汽车配件有限公司 | A kind of automobile support assembly flanging die with springback compensation |
| CN205967090U (en) * | 2016-08-26 | 2017-02-22 | 合肥市华林模具有限公司 | A stamping die who kick -backs prevents to bend |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |