CN207266987U - A kind of electromagnetic repulsive force flange fixing installation based on inertial confinement - Google Patents
A kind of electromagnetic repulsive force flange fixing installation based on inertial confinement Download PDFInfo
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- CN207266987U CN207266987U CN201721146321.8U CN201721146321U CN207266987U CN 207266987 U CN207266987 U CN 207266987U CN 201721146321 U CN201721146321 U CN 201721146321U CN 207266987 U CN207266987 U CN 207266987U
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Abstract
The utility model discloses a kind of electromagnetic repulsive force flange fixing installation based on inertial confinement, including：Flanging coil, flanging copper ring, workpiece and cavity plate；Flanging coil is arranged at the top of flanging copper ring, and flanging copper ring is arranged on the top of the edge of work, and the workpiece setting is above cavity plate, the workpiece cavity plate shaping；Flanging coil is used to produce pulsed magnetic field in its discharge process so that the inductive loop accordingly produced in flanging copper ring interacts with pulsed magnetic field, so as to produce electromagnetic repulsive force between flanging coil and flanging copper ring；By the electromagnetic repulsive force between the flanging coil and flanging copper ring pressure-pad-force is provided for the edge of work.Electromagnetic repulsive force between two flanging coils of the utility model or flanging coil and flanging copper ring, can flexibly control pressure-pad-force, reduce the cost of device, reduce spatial volume, and can effectively reduce the power supply energy of system.
Description
Technical field
The utility model belongs to metal forming manufacturing field, is arranged more particularly, to a kind of electromagnetism based on inertial confinement
Repulsion flange fixing installation.
Background technology
During metal sheet stamping shapes, part corrugation is usually faced, ruptures or springs back the problems such as excessive.It is real
In the production of border, the mode that generally use applies pressure-pad-force controls the material of plate to flow, its main function is in stamping mistake
In journey under blank holder plate apply certain pressure so that prevent plate excessively flow into mold cavity, effectively reduce it is above-mentioned into
The generation of shape defect.The selection of suitable pressure-pad-force, controls very crucial for forming quality.The pressure-pad-force that tradition uses is typically
Constant pressure-pad-force is applied in whole punching stroke by forcing press, forcing press is generally pressed as most important stamping equipment
Type of drive can be divided into mechanical press and hydraulic press.This flanging mode usually requires the control system of complexity and sufficient work
Make table top, equipment cost is high, takes up a large area.
The mode that pressure-pad-force in sheet forming process is provided using electromagnetic force is known as electromagnetism flanging, existing on electromagnetism pressure
The research of side technology mainly has in terms of following two in paper disclosed in electromagnetism flanging and patent at present still in the exploratory stage
Content：
1st, pressure-pad-force is provided for sheet metal forming and Deep forming using the attraction between two electromagnet, the technology
Defect is electromagnet there are magnetic saturation phenomenon, i.e. its magnetic flux infinitely to increase, therefore, the magnetic for utilizing electromagnet to produce
Field intensity is limited, so that the pressure-pad-force amplitude that can be provided is limited.Therefore, when board dimensions are larger, this method can not provide
The pressure-pad-force met the requirements.
2nd, pressure-pad-force is provided for sheet metal forming using the attraction between two coils, this method inherits electromagnetism
Flanging has the advantages that flexibility and accuracy in pressure-pad-force regulation and control, but it must use two sets of coil groups, and required puts
Electric flux is larger, meanwhile, the physical dimension of the method requirement coil have to be larger than workpiece and geometric position must be positioned at workpiece side
The outside in edge region, can be only achieved the effect for applying pressure-pad-force, therefore the flange fixing installation manufacture cost based on this method design is inclined
Height, installation space are bigger than normal.
Utility model content
The purpose of this utility model is to provide a kind of electromagnetic repulsive force flange fixing installation based on inertial confinement, it is intended to solves
Existing electromagnetism crimping technique provides pressure-pad-force using the attraction between two electromagnet, the magnetic field intensity produced due to electromagnet
It is limited, when board dimensions are larger, the pressure-pad-force met the requirements can not be provided, and carry using the attraction between two coils
For pressure-pad-force, high expensive, installation space technical problem bigger than normal are manufactured.
To achieve the above object, in a first aspect, a kind of electrodynamic repulsion based on inertial confinement of the utility model offer forces
Side device, including：Flanging coil, flanging copper ring, workpiece and cavity plate；The flanging coil is arranged at the top of flanging copper ring,
The flanging copper ring is arranged on the top of the edge of work, and for the workpiece setting above cavity plate, the workpiece is to be deformed to described
Cavity plate shapes；The flanging coil is used to produce pulsed magnetic field in its discharge process so that is accordingly produced in the flanging copper ring
Raw inductive loop interacts with pulsed magnetic field, so as to produce electromagnetic repulsive force between flanging coil and flanging copper ring；It is logical
The electromagnetic repulsive force crossed between the flanging coil and flanging copper ring provides pressure-pad-force for the edge of work, to ensure that the workpiece exists
Its marginal position keeps stablizing in forming process, while ensures the mobility of workpiece material, avoids workpiece from being sent out in forming process
The defects of raw corrugation and rupture.
It should be noted that pressure-pad-force needs to maintain suitable interval range, the edge of work can be kept to stablize, and protected
The mobility of workpiece is demonstrate,proved, when pressure-pad-force is too small, the mobility of workpiece is big, and workpiece easily wrinkles in forming process；When pressure-pad-force mistake
Greatly, the mobility of workpiece is small, and workpiece is easily broken in forming process.
Specifically, electromagnetic force can be adjusted by adjusting the discharge voltage of flanging coil, to control pressure-pad-force.
Alternatively, which further includes：Clump weight；The clump weight is freely placed or bolt is fastened on the flanging coil
Top, for constraining the displacement of the flanging coil.
Alternatively, which further includes：Blank holder；The blank holder is arranged on below the flanging copper ring, for by institute
State electromagnetic repulsive force and be transferred to the edge of work to provide pressure-pad-force.
Second aspect, the utility model provide a kind of electromagnetic repulsive force flange fixing installation based on inertial confinement, including：Upper pressure
Sideline circle, push sideline circle, workpiece and cavity plate；The upper flanging coil and pushing sideline circle are successively set on work from top to bottom
The top at part edge, the workpiece setting is above cavity plate, the workpiece cavity plate shaping；The upper flanging line
Circle and pushing sideline circle are used to discharge respectively at it so that above flanging coil and pushing sideline circle are passed through the pulse of reversed polarity
During electric current, electromagnetic repulsive force is produced between upper flanging coil and pushing sideline circle, and by the way that the pushing sideline is enclosed institute
The electromagnetic repulsive force being subject to is transferred to the edge of work to provide pressure-pad-force, to ensure the workpiece its side in forming process
Edge position keeps stablizing, while ensures the mobility of workpiece material, avoids workpiece that corrugation and rupture etc. occur in forming process
Defect.
Alternatively, which further includes：Clump weight；The clump weight is freely placed or bolt is fastened on the flanging coil
Top, for constraining the displacement of the upper flanging coil.
In general, by the contemplated above technical scheme of the utility model compared with prior art, have with following
Beneficial effect：
1st, the utility model is using the electromagnetic repulsive force between two flanging coils or flanging coil and flanging copper ring, for height
Sheet forming process in rapid-result shape provides pressure-pad-force, is powered for flanging coil using the pulse power and supporting control system,
By adjusting the loading current of flanging coil, and the time cooperation of control flanging coil and formation system, it is possible to achieve flexibly
Controllable pressure-pad-force is adjusted, and is reached the pressure-pad-force amplitude than quasi-static lower higher, is particularly suitable for electro-magnetic forming process.
2nd, the utility model inherits the advantages of existing electromagnetism pressing method, and traditional mechanical flanging is in order to resist pressure-pad-force
Reaction force, typically result in equipment there is huge mechanical structure, the utility model takes inertial confinement mode, utilizes counterweight
Block by the movement of flanging coil be reduced to can tolerance range, ensure that the mechanical stability of flange fixing installation, its is easy to operate, is easy to
Realize, while reduce the cost of device, reduce spatial volume.In addition, flange fixing installation only consumes electric energy, it is environment friendly and pollution-free.
3rd, the utility model uses electromagnetic repulsive force mode, and the geometric position of flanging coil is located above plate, produced
Pressure-pad-force is directly delivered to the flange region of plate by rigid media, therefore the physical dimension of flanging coil need to only cover plate
Flange region, so as to reduce flange fixing installation overall dimensions and assembly space, reduce the manufacture cost of flange fixing installation.This
Outside, unicoil flange fixing installation also has the characteristics of compact-sized, to be easy to frock.For twin coil flange fixing installation, due to twin coil
System equivalent inductance is connected much smaller than twin coil same polarity in the case of opposite polarities in series, and under identical voltage class, system etc.
Imitate inductance to reduce, discharge loop electric current can increase, and caused electromagnetic force also accordingly increases, so as to improve system effectiveness.
Likewise, for identical pressure-pad-force amplitude level, can effectively be subtracted using the electromagnetic repulsive force flange fixing installation of the utility model
The power supply energy of mini system.
Brief description of the drawings
Fig. 1 is the electromagnetic repulsive force flange fixing installation structure diagram based on inertial confinement of the utility model embodiment 1；
Fig. 2 is the electromagnetic repulsive force flange fixing installation structure diagram based on inertial confinement of the utility model embodiment 2；
Fig. 3 is the electromagnetic repulsive force flange fixing installation structure diagram based on inertial confinement of the utility model embodiment 3；
Fig. 4 is the electromagnetic repulsive force flanging principle schematic based on inertial confinement of the utility model embodiment 1；
Fig. 5 is the electromagnetic repulsive force flanging principle schematic based on inertial confinement of the utility model embodiment 3；
Fig. 6 is the typical waveform schematic diagram of the pulse current described in the utility model for being used to implement pressure-pad-force regulation and control.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, is not used to limit the utility model.
The utility model provides a kind of electromagnetic repulsive force flange fixing installation based on inertial confinement.By hot-wire coil group or
Electromagnetic repulsive force between hot-wire coil and flanging copper ring, the pressure-pad-force that can be controlled for sheet forming provider, so that effectively anti-
Only corrugation or rupture occur for plate.
To achieve the above object, according to the one side of the utility model, there is provided a kind of electromagnetism based on inertial confinement
Repulsive force flange fixing installation, including flanging system, the pulse power and control system, cavity plate, clump weight, wherein flanging system include pressure
Sideline is enclosed and flanging copper ring.The flanging system is placed on above the cavity plate, and the clump weight is positioned over the flanging coil
Top, for constrain the movement of flanging coil, the pulse power and control system by charger, charger switch element and
AC capacitor group (or storage battery group), thyristor, the continuous current circuit composition that can be cut-off, connect the line in the flanging system
Circle.
Further, the flanging copper ring in flanging system can be substituted by another flanging coil.
Further, the flanging copper ring in flanging system can be any conductive metal ring.
Further, blank holder can be increased in flanging system, for transmitting pressure-pad-force for the flange region of plate.
Further, the gross mass of the flanging coil in the flanging system and clump weightWherein,
F is the upward pulse-electromagnetic force suffered by flanging coil, and T is the pulse duration, and g is acceleration of gravity, hmFor flanging line
The maximum allowable displacement of circle and clump weight.
Further, the pulse power and control system are used to provide amplitude for the flanging coil and pulsewidth is controllable
Pulse current, thus for sheet forming provide flexibility and changeability be easy to regulation and control pulse electromagnetic pressure-pad-force.
Further, flanging copper ring can be substituted with another flanging coil, the pulse current that the pulse power is produced, is passed through
In the flanging coil of two series connection, huge electromagnetic repulsive force can be formed between two flanging coils.Repulsive force passes through lower flanging
Coil is delivered to workpiece flange region, by adjusting the loading current of regulating winding, and control coil and formation system when
Sequence coordinates, and flexibly controllable pressure-pad-force is provided for the workpiece.
Further, blank holder can be increased in flanging system, blank holder is placed in above workpiece, and flanging copper coin is placed in flanging
Circle top, the repulsive force of generation is delivered to blank holder by flanging copper coin, then is delivered to workpiece flange region, passes through regulating winding
Loading current, and the time cooperation of control coil and formation system, flexibly controllable pressure-pad-force is provided for the workpiece.
The specific example that the utility model provides is introduced below in conjunction with attached drawing：
As shown in Figure 1, the overall structure of the electromagnetism flanging of the utility model embodiment includes：Cavity plate 1, workpiece 2, flanging copper
Ring 3, flanging coil 4, clump weight 5 and the pulse power and control system 6.
The pulse power and control system 6 provide pulse current for flanging coil 4, the clump weight 5 freely place or
Bolt is fastened on the top of flanging coil 4.
The flanging process of electromagnetic repulsive force flange fixing installation based on inertial confinement may include following steps：
(1) workpiece 2 is arranged on to the top of cavity plate 1.
(2) flanging copper ring 3 is arranged on the top of workpiece 2, flanging coil 4 is arranged at the top of flanging copper ring 3.
(3) pulse power and control system 6 discharge flanging coil 4 so that the peripheral region of flanging coil 4 produces pulse
Magnetic field, the inductive loop in flanging copper ring 3 interacts with pulsed magnetic field, so as to be produced between flanging coil 4 and flanging copper ring 3
Raw electromagnetic repulsive force, as shown in Figure 4.
(4) electromagnetic repulsive force is sent to the flange region of workpiece 3 by flanging copper ring 3, so as to provide pressure for plate shaping
Bian Li.
(5) flanging coil 4 is subject to electromagnetic repulsive force to shift up, due to the effect of clump weight 5 so that flanging coil 4
Displacement constraint is in a small range (displacement is no more than 5mm), so as to not influence the stability of flanging system.
Further, pressure-pad-force amplitude and pulsewidth adjusting and control realized by the pulse power and control system 6.
As shown in Fig. 2, the overall structure of the electromagnetism flanging of the utility model embodiment includes：Cavity plate 1, workpiece 2, flanging copper
Ring 3, flanging coil 4, clump weight 5, the pulse power and control system 6 and blank holder 7.
The pulse power and control system 6 provide pulse current for flanging coil 4, the clump weight 5 freely place or
Bolt is fastened on the top of flanging coil 4.
The flanging process of electromagnetic repulsive force flange fixing installation based on inertial confinement may include following steps：
(1) workpiece 2 is arranged on to the top of cavity plate 1.
(2) blank holder 7 is arranged to the top of workpiece 2, flanging copper ring 3 is freely placed or bolt is anchored on blank holder 7
Top, flanging coil 4 is arranged at the top of flanging copper ring 3.
(3) pulse power and control system 6 discharge flanging coil 4 so that the peripheral region of flanging coil 4 produces pulse
Magnetic field, the inductive loop in flanging copper ring 3 interacts with pulsed magnetic field, so as to be produced between flanging coil 4 and flanging copper ring 3
Raw electromagnetic repulsive force.
(4) electromagnetic repulsive force is sent on blank holder 7 by flanging copper ring 3, then is transferred to the flange region of workpiece 3, from
And provide pressure-pad-force for plate shaping.
(5) flanging coil 4 is subject to electromagnetic repulsive force to shift up, due to the effect of clump weight 5 so that flanging coil 4
Displacement constraint is in a small range (displacement is no more than 5mm), so as to not influence the stability of flanging system.
Further, pressure-pad-force amplitude and pulsewidth adjusting and control realized by the pulse power and control system 6.
As shown in figure 3, the overall structure of the electromagnetism flanging of the utility model embodiment includes：Cavity plate 1, workpiece 2, flanging line
Circle 4, clump weight 5, the pulse power and control system 6 and pushing sideline circle 8.(at this time, flanging coil 4 can be described as flanging line again
Circle, no longer illustrates below)
The pulse power and control system 6 for flanging coil 4 and push 8 offer pulse current of sideline circle, the counterweight
Block 5 is freely placed or bolt is fastened on the top of flanging coil 4.
The flanging process of electromagnetic repulsive force flange fixing installation based on inertial confinement may include following steps：
(1) workpiece 2 is arranged on to the top of cavity plate 1.
(2) sideline will be pushed and enclose 8 tops for being arranged at workpiece 2, flanging coil 4 is arranged at the top for pushing sideline circle 8.
(3) pulse power and control system 6 to flanging coil 4 and push 8 electric discharge of sideline circle so that flanging coil 4 is with
Flanging coil 8 is passed through the pulse current of reversed polarity, so that electromagnetic repulsive force is produced between flanging coil 4 and pushing sideline circle 8,
As shown in Figure 5.
(4) electromagnetic repulsive force is transferred to the flange region of workpiece 3 by pushing sideline circle 8, so as to be provided for plate shaping
Pressure-pad-force.
(5) flanging coil 4 is subject to electromagnetic repulsive force to shift up, due to the effect of clump weight 5 so that flanging coil 4
Displacement constraint is in a small range (displacement is no more than 5mm), so as to not influence the stability of flanging system.
Further, pressure-pad-force amplitude and pulsewidth adjusting and control realized by the pulse power and control system 6.
As shown in fig. 6, the typical waveform for the pulse current described in the utility model for being used to implement pressure-pad-force regulation and control.Its
In, a segment tables show the rising edge of pulse current, and b segment tables show the trailing edge of pulse current.By adjusting pulse current amplitude, pulsewidth
And the triggered time, it is possible to achieve the variable blank holding force control during component shaping, suitable section is maintained by pressure-pad-force
Scope.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification for being made where within the spirit and principles of the present invention, equivalent substitution and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (5)
- A kind of 1. electromagnetic repulsive force flange fixing installation based on inertial confinement, it is characterised in that including：Flanging coil, flanging copper ring, Workpiece and cavity plate；The flanging coil is arranged at the top of flanging copper ring, and the flanging copper ring is arranged on the upper of the edge of work Side, the workpiece setting is above cavity plate, the workpiece cavity plate shaping；The flanging coil is used to produce pulsed magnetic field in its discharge process so that the sense accordingly produced in the flanging copper ring It should be vortexed and interact with pulsed magnetic field, so as to produce electromagnetic repulsive force between flanging coil and flanging copper ring；By described Electromagnetic repulsive force between flanging coil and flanging copper ring provides pressure-pad-force for the edge of work, to ensure that the workpiece was shaping Its marginal position keeps stablizing in journey, while ensures the mobility of workpiece material, avoids workpiece from wrinkling in forming process And rupture.
- 2. the electromagnetic repulsive force flange fixing installation based on inertial confinement as claimed in claim 1, it is characterised in that further include：Match somebody with somebody Pouring weight；The clump weight is freely placed or bolt is fastened on the top of the flanging coil, for constraining the position of the flanging coil Move.
- 3. the electromagnetic repulsive force flange fixing installation based on inertial confinement as claimed in claim 1, it is characterised in that further include：Pressure Flange；The blank holder is arranged on below the flanging copper ring, for by the electromagnetic repulsive force be transferred to the edge of work with Pressure-pad-force is provided.
- A kind of 4. electromagnetic repulsive force flange fixing installation based on inertial confinement, it is characterised in that including：Upper flanging coil, lower flanging Coil, workpiece and cavity plate；The upper flanging coil and pushing sideline circle are successively set on the top of the edge of work from top to bottom, The workpiece setting is above cavity plate, the workpiece cavity plate shaping；The upper flanging coil and pushing sideline circle are used to discharge respectively at it so that upper flanging coil and pushing sideline circle When being passed through the pulse current of reversed polarity, upper flanging coil and push sideline circle between produce electromagnetic repulsive force, and pass through by The suffered electromagnetic repulsive force of sideline circle that pushes is transferred to the edge of work to provide pressure-pad-force, to ensure the workpiece Its marginal position keeps stablizing in forming process, while ensures the mobility of workpiece material, avoids workpiece in forming process Generation wrinkles and rupture.
- 5. the electromagnetic repulsive force flange fixing installation based on inertial confinement as claimed in claim 4, it is characterised in that further include：Match somebody with somebody Pouring weight；The clump weight is freely placed or bolt is fastened on the top of the flanging coil, for constraining the upper flanging coil Displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721146321.8U CN207266987U (en) | 2017-09-08 | 2017-09-08 | A kind of electromagnetic repulsive force flange fixing installation based on inertial confinement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721146321.8U CN207266987U (en) | 2017-09-08 | 2017-09-08 | A kind of electromagnetic repulsive force flange fixing installation based on inertial confinement |
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| CN207266987U true CN207266987U (en) | 2018-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421874A (en) * | 2018-05-25 | 2018-08-21 | 福州大学 | A kind of variable cross-section metal pipe material Electromagnetic bulging device and method |
-
2017
- 2017-09-08 CN CN201721146321.8U patent/CN207266987U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421874A (en) * | 2018-05-25 | 2018-08-21 | 福州大学 | A kind of variable cross-section metal pipe material Electromagnetic bulging device and method |
| CN108421874B (en) * | 2018-05-25 | 2024-03-29 | 福州大学 | Electromagnetic bulging device and method for variable-section metal pipe |
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