CN110523834A - A kind of plate electromagnetism auxiliary bending forming method for controlling springback and device - Google Patents
A kind of plate electromagnetism auxiliary bending forming method for controlling springback and device Download PDFInfo
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- CN110523834A CN110523834A CN201910314052.9A CN201910314052A CN110523834A CN 110523834 A CN110523834 A CN 110523834A CN 201910314052 A CN201910314052 A CN 201910314052A CN 110523834 A CN110523834 A CN 110523834A
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- 238000005452 bending Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000013519 translation Methods 0.000 claims abstract description 96
- 238000003825 pressing Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 22
- 230000010355 oscillation Effects 0.000 claims abstract description 13
- 230000008030 elimination Effects 0.000 claims description 12
- 238000003379 elimination reaction Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 6
- 238000013507 mapping Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 10
- 238000009434 installation Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 16
- 230000006399 behavior Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
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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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
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- Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Plate electromagnetism auxiliary bending forming method for controlling springback of the invention and device, method include S1: setting path for translation and crooked route；S2: plate is placed in path for translation and is covered on above crooked route；S3: bending forming power is applied to plate；S4: applying radially and/or axially electromagnetic force to plate makes plate eliminate rebound；S5: the plate after taking out forming.Device includes cavity plate, pressing plate and punch-pin, pressing plate setting forms path for translation above cavity plate and between cavity plate, punch-pin is arranged in pressing plate side, crooked route is formed between cavity plate when punch-pin is run, plate is placed in path for translation and is covered on above crooked route, plate is located on cavity plate, and path for translation is nearby provided with makes plate that the electromagnetic coil that high frequency oscillation effect eliminates rebound occur for applying radially and/or axially electromagnetic force to plate.There is the thickness that can be reduced plate material to rebound, can inhibit in Sheet Metal Stamping Process to be thinned for the invention, moreover it is possible to the advantages of increasing substantially forming efficiency.
Description
Technical field
The invention mainly relates to materials plastic forming technical fields more particularly to a kind of plate electromagnetism auxiliary bending forming to return
Play control method and device.
Background technique
Electromagnetic pulse forming is a kind of method for carrying out High-speed machining to metal works using pulse magnet field force.Study table
Bright: material generates under high speed impact and is different from the quasi-static deformational behavior of traditional diamond-making technique and a kind of dynamic behaviour occur,
I.e. material elastomeric deformable wave, plastic wave impact under there are the dynamic behaviors such as twin crystal, tissue inter-variable, Adiabatic Shear.
The forming limit of difficult-to-deformation material can thus be effectively improved, reduce rebound.
In terms of using pulse-electromagnetic force control rebound, electromagnetism auxiliary stamping technology obtains the attention of domestic and foreign scholars.In
In document " Electromagnetically Assisted Sheet Metal Stamping ", GS Daehn etc. is using insertion
The punch-pin of coil first carries out v-shaped bending to plate, and then coil discharge, makes the sheet metal bending angle of coil face in electromagnetic force
Under deform.In document " Reduction of springback in V-shaped parts using
In electromagnetic impulse calibration ", Cui Xiaohui etc. is had found using finite element and laboratory facilities, is used
The punch-pin for being embedded in coil first carries out v-shaped bending to plate, and then after coil discharge, the bending angle of plate can be under electromagnetic force
High-speed motion and high frequency oscillation occurs, to make the bending angle of plate after coil discharge that forward and reverse bending occur back and forth, most
The residual stress of whole bending angle reduces, and rebound reduces.But above-mentioned method for controlling springback, which has the disadvantage that, exists coil setting
Punch-nose angle region, will increase the manufacture difficulty and production precision of punch-pin, and greatly reduce the service life of punch-pin.Though this is also
Right electro-magnetic forming can significantly reduce rebound, but the reason of can not industrially being applied of remaining unchanged.
In patent " a kind of the Electromagnetic Control forming device and method of Spring-Back for Sheet Metal Bending ", Cui Xiaohui etc. is proposed in plate
The end setting radial side of flange pushes away coil.After radial side pushes away coil discharge, plate radius area meeting corresponding to die entrance
High frequency oscillation effect occurs, to eliminate rebound.But this method has the following problems: (1) needing in forming process using pressure
Sheet material clamping thickness and is thinned, even by flange and cavity plate occur then punch-pin pushing is easy to make plate by biggish tensile stress
Rupture；(2) after punch-pin is pull-shaped to plate, plate flange can cause the end of plate and coil distance big to contract.Therefore it needs
It to be pushed away in plate end and radial side and driving plate is set between coil.But the step of increasing driving plate can reduce forming efficiency；(3)
Since the flange size of plate is often larger, needing biggish electromagnetic force just can make flange position that radial deformation occur.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide it is a kind of can reduce plate material to rebound, can
The thickness in Sheet Metal Stamping Process is inhibited to be thinned, moreover it is possible to increase substantially the plate electromagnetism auxiliary bending forming rebound of forming efficiency
Control method and device.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of plate electromagnetism auxiliary bending forming method for controlling springback, comprising the following steps:
S1: being arranged the path for translation communicated and crooked route, and the path separation of path for translation is greater than the thickness of plate；
S2: plate is placed in path for translation and is covered on above crooked route, and plate is located at the bottom of path for translation；
S3: bending forming power is applied to plate above crooked route；
S4: applying radially and/or axially electromagnetic force to plate near path for translation makes plate that high frequency oscillation effect occur
Eliminate rebound；
S5: the plate after taking out forming.
As a further improvement of the above technical scheme:
In step s 4, radial electromagnetic force is applied to plate in path for translation end, makes the bending angle of plate that plasticity occur
Plate generation in deformation, path for translation diametrically reciprocates elimination rebound.
In step s 4, radial electromagnetic force and axial electromagnetic force are applied to plate in path for translation end, makes path for translation
Interior plate generates radial and axial reciprocating motion and eliminates rebound.
In step s 4, axial electromagnetic force is applied to plate above path for translation, generates the plate in path for translation
Axially reciprocating eliminates rebound.
In step s 4, axial electromagnetic force and radial electromagnetic force are applied to plate above path for translation, makes path for translation
Interior plate, which generates axially and radially to move back and forth, eliminates rebound.
A kind of plate electromagnetism auxiliary bending forming springback control device including cavity plate, pressing plate and can move axially convex
Mould, the pressing plate are arranged in above cavity plate and are formed between cavity plate the path for translation that spacing is greater than sheet thickness, the punch-pin
Setting forms crooked route between cavity plate when punch-pin is run, the plate is placed in path for translation and covers in pressing plate side
Above crooked route, plate is located on cavity plate, and the path for translation is nearby provided with for applying radial direction and/or axis to plate
Make plate that the electromagnetic coil that high frequency oscillation effect eliminates rebound occur to electromagnetic force.
As a further improvement of the above technical scheme:
It further include the coil mounting plate that path for translation end side is set, the electromagnetic coil is arranged in coil mounting plate,
In sheet metal bending, in the middle line of the electromagnetic coil and path for translation plate middle line on the same line.
It further include the coil mounting plate that path for translation end side is set, the electromagnetic coil is arranged in coil mounting plate,
In sheet metal bending, the middle line of the electromagnetic coil be higher than path for translation in plate middle line.
The electromagnetic coil is arranged in pressing plate, and the electromagnetic coil is located in path for translation in the mapping range of plate.
The electromagnetic coil is arranged in pressing plate, and the electromagnetic coil is at end of the translation direction beyond plate in path for translation
Portion.
Compared with the prior art, the advantages of the present invention are as follows:
Plate electromagnetism auxiliary bending forming method for controlling springback of the invention, by the way that the path separation of path for translation to be arranged
For the thickness greater than plate, make plate by it is curved during, thickness will not be caused to be thinned by excessive tensile stress；In
Path for translation, which nearby applies radially and/or axially electromagnetic force to plate and makes plate that high frequency oscillation effect occur, eliminates rebound, can be with
Guarantee that no matter plate plate in Stretch Forming Process has radially flowed how many distance, can be made plate by the effect of electromagnetic force
Material all moves back and forth radially and/or axially, realizes the elimination of rebound；Plate can also be controlled radially and/or axially
Different deflections realizes the flexible control of rebound；The present invention, which is equivalent to, corrects shape plate after bending using electromagnetic force, energy
The high-speed deformation characteristics for enough utilizing electro-magnetic forming, improve the forming limit of plate；The present invention can integrally reduce plate material to rebound, suppression
Thickness in Sheet Metal Stamping Process processed is thinned, moreover it is possible to increase substantially forming efficiency.
Plate electromagnetism auxiliary bending forming springback control device of the invention, by setting the spacing between pressing plate and cavity plate
Be set to the thickness greater than plate, make plate by it is curved during, thickness will not be caused to be thinned by excessive tensile stress；
Applying radially and/or axially electromagnetic force to plate near path for translation makes plate that the elimination rebound of high frequency oscillation effect occur, can
To guarantee that no matter plate plate in Stretch Forming Process has radially flowed how many distance, can be made by the effect of electromagnetic force
Plate all moves back and forth radially and/or axially, realizes the elimination of rebound；Plate can also be controlled radially and/or axis
To different deflections, the flexible control of rebound is realized；The present invention, which is equivalent to, corrects shape plate after bending using electromagnetic force,
The high-speed deformation characteristics that electro-magnetic forming can be utilized, improve the forming limit of plate；The present invention can integrally reduce plate material to rebound,
The thickness in Sheet Metal Stamping Process is inhibited to be thinned, moreover it is possible to increase substantially forming efficiency.
Detailed description of the invention
Fig. 1 is the flow chart of plate electromagnetism auxiliary bending forming method for controlling springback of the present invention.
Fig. 2 is the structural schematic diagram (initial shape of plate electromagnetism auxiliary bending forming springback control Installation practice 1 of the present invention
State).
Fig. 3 is that the structural schematic diagram of plate electromagnetism auxiliary bending forming springback control Installation practice 1 of the present invention (is bent to
Shape state).
Fig. 4 is that (coil is put for the structural schematic diagram of plate electromagnetism auxiliary bending forming springback control Installation practice 1 of the present invention
Electricity condition).
Fig. 5 is that (rebound disappears for the structural schematic diagram of plate electromagnetism auxiliary bending forming springback control Installation practice 1 of the present invention
Except state).
Fig. 6 is the structural schematic diagram (initial shape of plate electromagnetism auxiliary bending forming springback control Installation practice 2 of the present invention
State).
Fig. 7 is that the structural schematic diagram of plate electromagnetism auxiliary bending forming springback control Installation practice 2 of the present invention (is bent to
Shape state).
Fig. 8 is that (coil is put for the structural schematic diagram of plate electromagnetism auxiliary bending forming springback control Installation practice 2 of the present invention
Electricity condition).
Fig. 9 is that (rebound disappears for the structural schematic diagram of plate electromagnetism auxiliary bending forming springback control Installation practice 2 of the present invention
Except state).
Figure 10 is that the structural schematic diagram of plate electromagnetism auxiliary bending forming springback control Installation practice 3 of the present invention is (initial
State).
Figure 11 is the structural schematic diagram (bending of plate electromagnetism auxiliary bending forming springback control Installation practice 3 of the present invention
Shaped state).
Figure 12 is the structural schematic diagram (coil of plate electromagnetism auxiliary bending forming springback control Installation practice 3 of the present invention
Discharge condition).
Figure 13 is the structural schematic diagram (rebound of plate electromagnetism auxiliary bending forming springback control Installation practice 3 of the present invention
Elimination state).
Figure 14 is that the structural schematic diagram of plate electromagnetism auxiliary bending forming springback control Installation practice 4 of the present invention is (initial
State).
Figure 15 is the structural schematic diagram (bending of plate electromagnetism auxiliary bending forming springback control Installation practice 4 of the present invention
Shaped state).
Figure 16 is the structural schematic diagram (coil of plate electromagnetism auxiliary bending forming springback control Installation practice 4 of the present invention
Discharge condition).
Figure 17 is the structural schematic diagram (rebound of plate electromagnetism auxiliary bending forming springback control Installation practice 4 of the present invention
Elimination state).
Figure 18 is present invention rebound Experimental results show figure.
Each label indicates in figure:
1, plate；2, path for translation；3, crooked route；4, cavity plate；5, pressing plate；6, punch-pin；7, electromagnetic coil；8, coil is solid
Fixed board.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Embodiment of the method 1:
Fig. 1 to Fig. 5 shows the first embodiment of plate electromagnetism auxiliary bending forming method for controlling springback of the present invention, packet
Include following steps:
S1: being arranged the path for translation 2 communicated and crooked route 3, and the path separation of path for translation 2 is greater than the thickness of plate 1；
S2: plate 1 is placed in path for translation 2 and is covered on 3 top of crooked route, and plate 1 is located at the bottom of path for translation 2
Portion；
S3: bending forming power is applied to plate 1 above crooked route 3；
S4: applying radially and/or axially electromagnetic force to plate 1 near path for translation 2 makes plate 1 that high frequency oscillation effect occur
Rebound should be eliminated；
S5: the plate 1 after taking out forming.
Plate electromagnetism auxiliary bending forming method for controlling springback of the invention, by setting the path separation of path for translation 2
Be set to the thickness greater than plate 1, make plate 1 by it is curved during, thickness will not be caused to subtract by excessive tensile stress
It is thin；Applying radially and/or axially electromagnetic force to plate 1 near path for translation 2 eliminates back the generation of plate 1 high frequency oscillation effect
Bullet, it is ensured that no matter the plate 1 in Stretch Forming Process of plate 1 has radially flowed how many distance, can be by electromagnetic force
Effect, moves back and forth plate 1 all radially and/or axially, realizes the elimination of rebound；Can also control 1 edge of plate and/
Or axially distinct deflection, realize the flexible control of rebound；The present invention, which is equivalent to, carries out plate 1 after bending using electromagnetic force
School shape can utilize the high-speed deformation characteristics of electro-magnetic forming, improve the forming limit of plate 1；The present invention can integrally reduce plate
1 rebound of material, inhibits the thickness in 1 punching course of plate to be thinned, moreover it is possible to increase substantially forming efficiency.
Using the rebound knot after plate electromagnetism auxiliary bending forming method for controlling springback of the present invention and conventional quasi-static punching press
Structure comparing result is as shown in figure 18.
In the present embodiment, in step s 4, radial electromagnetic force is applied to plate 1 in 2 end of path for translation, makes plate 1
The generation of plate 1 in bending angle generation plastic deformation, path for translation 2 diametrically reciprocates elimination rebound.In this method, radial electricity
Magnetic force and the position consistency of plate 1 in the height direction, when applying radial electromagnetic force, the bending angle of plate 1 is plastically deformed,
Elimination rebound is diametrically reciprocated to make the plate 1 in path for translation 2 generate, realizes the flexible control of rebound.
Embodiment of the method 2:
Fig. 1 and Fig. 6 to Fig. 9 shows second of plate electromagnetism auxiliary bending forming method for controlling springback of the present invention in fact
Example is applied, the control method is substantially the same manner as Example 1, and difference is only that: in the present embodiment, in step s 4, in path for translation 2
End applies radial electromagnetic force and axial electromagnetic force to plate 1, generates the plate 1 in path for translation 2 radial and axial reciprocal
Rebound is eliminated in movement.In this method, radial electromagnetic force and axial electromagnetic force are applied to plate 1 in 2 end of path for translation, by radial direction
The bending angle of electromagnetic force plate 1 is plastically deformed, and is diametrically reciprocated so that the plate 1 in path for translation 2 be made to generate,
Axially reciprocating is generated by the plate 1 in axial electromagnetic force effect path for translation 2, the two cooperation is eliminated rebound, realized back
The flexible control of bullet.
Embodiment of the method 3:
Fig. 1 and Figure 10 to Figure 13 shows the third of plate electromagnetism auxiliary bending forming method for controlling springback of the present invention
Embodiment, the control method is substantially the same manner as Example 1, and difference is only that: in the present embodiment, in step s 4, on translation road
2 top of diameter applies axial electromagnetic force to plate 1, so that the plate 1 in path for translation 2 is generated axially reciprocating and eliminates rebound.It should
In method, axial electromagnetic force is applied to 1 top of plate, and axial electromagnetic force is fully located at the mapping range of plate 1 in path for translation 2
Interior, when applying axial electromagnetic force, the plate 1 in path for translation 2 generates axially reciprocating and eliminates rebound, realizes the soft of rebound
Property control.
Embodiment of the method 4:
Fig. 1 and Figure 14 is to Figure 17 shows the 4th kinds of plate electromagnetism auxiliary bending forming method for controlling springback of the present invention
Embodiment, the control method is substantially the same manner as Example 1, and difference is only that: in the present embodiment, in step s 4, on translation road
2 top of diameter applies axial electromagnetic force and radial electromagnetic force to plate 1, generates the plate 1 in path for translation 2 axially and radially past
Rebound is eliminated in multiple movement.In this method, axial electromagnetic force and radial electromagnetic force are applied to 1 top of plate, are made by radial electromagnetic force
It is plastically deformed, is diametrically reciprocated so that the plate 1 in path for translation 2 be made to generate, by axial electricity with the bending angle of plate 1
Plate 1 in magneticaction path for translation 2 generates axially reciprocating, and the two cooperation eliminates rebound, realizes the flexibility of rebound
Control.
Installation practice 1
Fig. 2 to Fig. 5 shows the first embodiment of plate electromagnetism auxiliary bending forming springback control device of the present invention, packet
Cavity plate 4, pressing plate 5 and the punch-pin 6 that can be moved axially are included, the setting of pressing plate 5 forms spacing above cavity plate 4 and between cavity plate 4
Greater than the path for translation 2 of 1 thickness of plate, the setting of punch-pin 6 is formed between cavity plate 4 when punch-pin 6 is run and is bent in 5 side of pressing plate
Path 3, plate 1 are placed in path for translation 2 and are covered on 3 top of crooked route, and plate 1 is located on cavity plate 4, and path for translation 2 is attached
Closely be provided with makes plate 1 that the electricity that high frequency oscillation effect eliminates rebound occur for applying radially and/or axially electromagnetic force to plate 1
Magnetic coil 7.By the way that the spacing between pressing plate 5 and cavity plate 4 to be set greater than to the thickness of plate 1, make plate 1 by curved mistake
Cheng Zhong will not be caused thickness to be thinned by excessive tensile stress；Radial direction and/or axis are applied to plate 1 near path for translation 2
To electromagnetic force make plate 1 occur high frequency oscillation effect eliminate rebound, it is ensured that no matter 1 edge of plate in Stretch Forming Process of plate 1
Radial Flow how many distances can be made plate 1 that reciprocal fortune all occur radially and/or axially by the effect of electromagnetic force
It is dynamic, realize the elimination of rebound；Can also control plate 1 along and/or axially distinct deflection, realize the flexible control of rebound；
The present invention, which is equivalent to, corrects shape plate 1 after bending using electromagnetic force, can utilize the high-speed deformation characteristics of electro-magnetic forming,
Improve the forming limit of plate 1；The present invention can integrally reduce the rebound of plate 1, and the thickness in 1 punching course of plate is inhibited to be thinned,
Forming efficiency can also be increased substantially.
It further include the coil mounting plate 8 that 2 end side of path for translation is set in the present embodiment, electromagnetic coil 7 is arranged in coil
In fixed plate 8, when plate 1 is bent, the middle line of the middle line of electromagnetic coil 7 and plate 1 in path for translation 2 on the same line.
In the structure, radial electromagnetic force and the position consistency of plate 1 in the height direction, when applying radial electromagnetic force, the bending of plate 1
Angle is plastically deformed, so that generating the plate 1 in path for translation 2 diametrically reciprocates elimination rebound, realizes rebound
Flexible control.
Installation practice 2
Fig. 6 to Fig. 9 shows second of embodiment of plate electromagnetism auxiliary bending forming springback control device of the present invention, should
Control device is substantially the same manner as Example 1, and difference is only that: further including the line that 2 end side of path for translation is arranged in the present embodiment
Enclose fixed plate 8, electromagnetic coil 7 be arranged in coil mounting plate 8, plate 1 be bent when, electromagnetic coil 7 middle line be higher than translation
The middle line of plate 1 in path 2.In the structure, since the middle line of electromagnetic coil 7 is higher than the middle line of plate 1 in path for translation 2, therefore
And radial electromagnetic force and axial electromagnetic force can be applied to plate 1, plasticity is occurred by the bending angle of radial electromagnetic force effect plate 1 and is become
Shape diametrically reciprocates so that the plate 1 in path for translation 2 be made to generate, by the plate in axial electromagnetic force effect path for translation 2
1 generates axially reciprocating, and the two cooperation eliminates rebound, realizes the flexible control of rebound.
Installation practice 3
Figure 10 to Figure 13 shows the third embodiment of plate electromagnetism auxiliary bending forming springback control device of the present invention,
The control device is substantially the same manner as Example 1, and difference is only that: in the present embodiment, electromagnetic coil 7 is arranged in pressing plate 5, electromagnetism
Coil 7 is located in path for translation 2 in the mapping range of plate 1.In the structure, electromagnetic coil 7 is arranged in pressing plate 5, Ke Yibao
No matter the plate 1 in Stretch Forming Process of plate 1 has radially flowed how many distance to card, can be by the effect of electromagnetic coil 7, axis
It is applied to 1 top of plate to electromagnetic force, axial electromagnetic force is fully located in path for translation 2 in the mapping range of plate 1, applies axis
When to electromagnetic force, the plate 1 in path for translation 2 generates axially reciprocating and eliminates rebound, realizes the flexible control of rebound.
Installation practice 4
Figure 14 to Figure 17 shows the 4th kind of embodiment of plate electromagnetism auxiliary bending forming springback control device of the present invention,
The control device is substantially the same manner as Example 1, and difference is only that: in the present embodiment, electromagnetic coil 7 is arranged in pressing plate 5, electromagnetism
Coil 7 is in end of the translation direction beyond plate 1 in path for translation 2.In the structure, electromagnetic coil 7 is arranged in pressing plate 5, can
It, can be by the work of electromagnetic coil 7 to guarantee no matter the plate 1 in Stretch Forming Process of plate 1 has radially flowed how many distance
With axial electromagnetic force and radial electromagnetic force are applied to 1 top of plate, are moulded by the bending angle of radial electromagnetic force effect plate 1
Property deformation, diametrically reciprocated so that plate 1 in path for translation 2 be made to generate, by axial electromagnetic force effect path for translation 2
Plate 1 generates axially reciprocating, and the two cooperation eliminates rebound, realizes the flexible control of rebound.
Although the present invention is disclosed as above with preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (10)
1. a kind of plate electromagnetism auxiliary bending forming method for controlling springback, which comprises the following steps:
S1: being arranged the path for translation (2) communicated and crooked route (3), and the path separation of path for translation (2) is greater than plate (1)
Thickness；
S2: plate (1) is placed on path for translation (2) and is covered on above crooked route (3), and plate (1) is located at path for translation
(2) bottom；
S3: bending forming power is applied to plate (1) above crooked route (3)；
S4: nearby applying radially and/or axially electromagnetic force to plate (1) in path for translation (2) makes plate (1) that high frequency oscillation occurs
Effect eliminates rebound；
S5: the plate (1) after taking out forming.
2. plate electromagnetism auxiliary bending forming method for controlling springback according to claim 1, it is characterised in that: in step S4
In, radial electromagnetic force is applied to plate (1) in path for translation (2) end, makes the bending angle of plate (1) that plastic deformation occur, put down
Plate (1) generation moved in path (2) diametrically reciprocates elimination rebound.
3. plate electromagnetism auxiliary bending forming method for controlling springback according to claim 1, it is characterised in that: in step S4
In, radial electromagnetic force and axial electromagnetic force are applied to plate (1) in path for translation (2) end, make the plate in path for translation (2)
(1) it generates radial and axial reciprocating motion and eliminates rebound.
4. plate electromagnetism auxiliary bending forming method for controlling springback according to claim 1, it is characterised in that: in step S4
In, axial electromagnetic force is applied to plate (1) above path for translation (2), generates the plate (1) in path for translation (2) axial
It moves back and forth and eliminates rebound.
5. plate electromagnetism auxiliary bending forming method for controlling springback according to claim 1, it is characterised in that: in step S4
In, axial electromagnetic force and radial electromagnetic force are applied to plate (1) above path for translation (2), make the plate in path for translation (2)
(1) it generates axially and radially to move back and forth and eliminates rebound.
6. a kind of plate electromagnetism auxiliary bending forming springback control device, it is characterised in that: including cavity plate (4), pressing plate (5) and
The punch-pin (6) that can be moved axially, pressing plate (5) setting form spacing above cavity plate (4) and between cavity plate (4) and are greater than plate
Expect the path for translation (2) of (1) thickness, the punch-pin (6) setting in pressing plate (5) side, when punch-pin (6) is run with cavity plate (4) it
Between form crooked route (3), the plate (1) is placed on path for translation (2) and is covered on above crooked route (3), plate (1)
On cavity plate (4), the path for translation (2) is nearby provided with to be made for applying radially and/or axially electromagnetic force to plate (1)
The electromagnetic coil (7) that high frequency oscillation effect eliminates rebound occurs for plate (1).
7. plate electromagnetism auxiliary bending forming springback control device according to claim 6, it is characterised in that: further include setting
The coil mounting plate (8) in path for translation (2) end side is set, electromagnetic coil (7) setting is in coil mounting plate (8), in plate
Expect (1) bending when, the electromagnetic coil (7) middle line and path for translation (2) interior plate (1) middle line on the same line.
8. plate electromagnetism auxiliary bending forming springback control device according to claim 6, it is characterised in that: further include setting
The coil mounting plate (8) in path for translation (2) end side is set, electromagnetic coil (7) setting is in coil mounting plate (8), in plate
Expect (1) bending when, the electromagnetic coil (7) middle line be higher than path for translation (2) interior plate (1) middle line.
9. plate electromagnetism auxiliary bending forming springback control device according to claim 6, it is characterised in that: the electromagnetism
In pressing plate (5), the electromagnetic coil (7) is located in the mapping range of path for translation (2) interior plate (1) for coil (7) setting.
10. plate electromagnetism auxiliary bending forming springback control device according to claim 6, it is characterised in that: the electricity
Magnetic coil (7) setting is in pressing plate (5), and the electromagnetic coil (7) is in translation direction beyond path for translation (2) interior plate (1)
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314052.9A CN110523834A (en) | 2019-04-18 | 2019-04-18 | A kind of plate electromagnetism auxiliary bending forming method for controlling springback and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314052.9A CN110523834A (en) | 2019-04-18 | 2019-04-18 | A kind of plate electromagnetism auxiliary bending forming method for controlling springback and device |
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| Publication Number | Publication Date |
|---|---|
| CN110523834A true CN110523834A (en) | 2019-12-03 |
Family
ID=68659853
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|---|---|---|---|
| CN201910314052.9A Pending CN110523834A (en) | 2019-04-18 | 2019-04-18 | A kind of plate electromagnetism auxiliary bending forming method for controlling springback and device |
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Cited By (1)
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| CN113695464A (en) * | 2021-08-26 | 2021-11-26 | 中南大学 | Plate forming device and method for eliminating springback and warping through electromagnetic pulse |
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