CN105170767B - Device and method for forming metal sheet through electromagnetic attraction force - Google Patents
Device and method for forming metal sheet through electromagnetic attraction force Download PDFInfo
- Publication number
- CN105170767B CN105170767B CN201510668505.XA CN201510668505A CN105170767B CN 105170767 B CN105170767 B CN 105170767B CN 201510668505 A CN201510668505 A CN 201510668505A CN 105170767 B CN105170767 B CN 105170767B
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- coil
- module
- electromagnetic
- inductor
- tubular
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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)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a device for forming a metal sheet through electromagnetic attraction force. The device comprises an actuator which comprises an insulated shell with a built-in cavity; a cylindrical sensor which is matched with the cavity is arranged in the insulated shell; a converting primary coil is arranged in the cylindrical sensor; a terminal is led out from each of the two ends of the converting primary coil; the insulated shell includes a front insulated shell and a rear insulated shell; the front insulated shell is provided with a cylindrical groove; an electromagnetic screen, an isolating piece and a single-turn working coil are arranged in the cylindrical groove sequentially from inside to outside; the single-turn working coil is connected with the cylindrical sensor; the surface of the single-turn working coil is coated with an insulating mold; the insulating mold is provided with a mold cavity for forming the metal sheet. The invention further relates to a method for forming the metal sheet through the electromagnetic attraction force. By means of the device and the method for forming the metal sheet through the electromagnetic attraction force, the traditional electromagnetic forming repulsion force is converted to the attraction force, the coils and the mold are combined into a whole, and the matching difficulty is reduced.
Description
Technical field
The present invention relates to a kind of apparatus and method of electromagnetic attraction form metal plate.
Background technology
Electro-magnetic forming is mainly used in the forming manufacturing technology of conductive material, is that one kind is converted into magnetic field energy using electric energy
The method of form metal plate, often using electromagnetic repulsive force, such as China Patent Publication No. is traditional electro-magnetic forming equipment
The metal blank electromagnetic forming device that the document of CN101406913A is introduced, including coil, collection chinaware, workpiece and shaping dies.
Coil outer assembling collection chinaware is placed in the side of workpiece, collects the working face of chinaware active set magnetic near workpiece.And shaping dies is then
Positioned at the opposite side of workpiece, by pulse high current in coil during shaping, produce repulsive force between coil and workpiece and promote
Workpiece to mold movement makes workpiece be adjacent to mould, with this Forming Workpiece.
Described electro-magnetic forming equipment shortcoming is that first the mould of electro-magnetic forming equipment is respectively placed in the two of workpiece with coil
Side so that equipment is integrally divided into two parts and is inconvenient to operate；Next needs Forming Workpiece for closed area covering or covering
When, shaping needs to need dismounting covering in advance, technique and operation all to complicate in oppositely arranged mould.
The content of the invention
In view of this, it is an object of the invention to provide a kind of apparatus and method of electromagnetic attraction form metal plate,
The traditional electro-magnetic forming repulsive force of conversion is attraction, and coil and die assembly are integrated, and reduces and coordinates difficulty.
For achieving the above object, the present invention is adopted the following technical scheme that：A kind of dress of electromagnetic attraction form metal plate
Put, it is characterised in that：Including actuator, the actuator includes being provided with the insulation crust of built-in die cavity, in the insulation crust
The tubular inductor coordinated with the die cavity is provided with, a conversion primary coil is equipped with the tubular inductor, described turn
A terminals are drawn respectively in the two ends for changing primary coil；The insulation crust includes front insulation crust and rear insulation crust, institute
State front insulation crust and offer cylindrical groove, the cylindrical groove is interior to be disposed with from inside to outside electromagnetic screen, spacer and list
Circle actuating coil, the single turn actuating coil is connected with the tubular inductor, and the single turn actuating coil Surface coating has absolutely
Edge mould, the insulation mould is provided with the mold cavity of form metal plate.
Further, also including power-supply system, the power-supply system includes control module, charging module, energy-storage module, puts
Electric module and performing module, the performing module includes the conversion primary coil, tubular inductor, electromagnetic screen, single turn work
Coil and metal blank；The control module is connected respectively with the charging module, discharge module, performing module, the charging
Module is connected to energy-storage module two ends, and energy-storage module is also connected with discharge module；The discharge module and the performing module
Conversion primary coil connection；Described primary coil is wrapped in tubular inductor, the tubular inductor output end and single turn
The lead of coil is electrically connected with；Described single-turn circular coil is placed between described electromagnetic screen and metal blank.
Further, described discharge module is applied to the electric current in primary coil for sinusoidal decay electric current, the sine
The frequency of decay current meetsIn formula：F is frequency；μ0For metal blank magnetic conductivity；γ is metallic plate
Material electrical conductivity；D is metal blank thickness.
Further, all portions of the rear insulation crust are provided with one handle retainer ring, the handle retainer ring both sides pair
Two handles should be provided with.
Further, the single turn actuating coil is annular scale copper, and the side of the annular scale copper offers coil
Groove, along the coil groove connecting plate perpendicular to the annular scale copper is drawn.
Further, the cylindrical groove bottom offers the rectangular channel passed through for the connecting plate.
Further, the tubular inductor offers the inductor groove consistent with the coil groove direction, described
Tubular inductor is additionally provided with the installation end face being engaged with the connecting plate, the company near the single turn actuating coil side
Fishplate bar is fixed with the installation end face.
Further, the interlayer of the conversion primary coil arranges insulation, to be helically wound around on tubular inductor；Institute
State tubular inductor to fix with a fixed cylinder with the conversion primary coil.
A kind of method of electromagnetic attraction form metal plate, it is characterised in that comprise the following steps：
Step S1：The control module controls the charging module and the energy-storage module is charged；
Step S2：The control module controls the discharge module and the electric energy stored in the energy-storage module is discharged and applied
Plus pulse high current is to the conversion primary coil in the performing module；
Step S4：There is electromagnetic induction in the conversion primary coil, to the tubular inductor in the tubular inductor
Inductor groove two ends accumulation electromotive force；
Step S5：It is described because the single turn actuating coil is connected with the inductor groove two ends of the tubular inductor
Electromotive force produces the electric current of a low frequency amplitude and is applied in the single turn actuating coil, completes the process of pulses switch；
Step S6：The single turn actuating coil is applied in after the electric current of the low frequency amplitude, the electromagnetic screen with
Vortex is all produced on metal blank, because electromagnetic screen is fixed in the cylindrical groove, the metal blank is made by electromagnetic force
With moving to the electromagnetic screen；
Step S7：The metal blank and the insulation contacting dies, are squeezed into the shape of mold cavity.
The present invention has the advantages that compared with prior art：
1st, the traditional electro-magnetic forming repulsive force of present invention conversion is attraction, can be integrated coil and die assembly,
Reduce and coordinate difficulty；
2nd, the effect that the present invention passes through conversion primary coil and tubular inductor, by low capacitance output low frequency amplitude
Electric current, improves plastic force；
3rd, actuator of the present invention is more light, can complete sheet forming, strong applicability with hand-held.
Description of the drawings
Fig. 1 is the circuit diagram of the embodiment of the present invention.
Fig. 2 is the actuator cut-away illustration of the embodiment of the present invention.
Fig. 3 is Fig. 2 along A-A cut-away illustrations.
Fig. 4 is partial enlarged drawing at Fig. 3 dotted-line ellipse frames.
Fig. 5 is the single turn actuating coil schematic diagram of the embodiment of the present invention.
Fig. 6 is the leading section schematic diagram of the insulation crust of the embodiment of the present invention.
Fig. 7 is the tubular inductor and its internal structure schematic diagram of the embodiment of the present invention
In figure：1- insulation moulds；11- mold cavities；12- handle retainer rings；13- handles；14- metal blanks；2- single turns
Actuating coil；21- connecting plates；22- installing holes；23- coil grooves；3- spacers；30- screws；4- electromagnetic screens；Insulate before 5- outer
Shell；51- cylindrical grooves；52- rectangular channels；53- fixing holes；54- connecting plate fixing holes；6- tubular inductors；61- inductors lead to
Groove；62- installs end face；7- fixes inner core；71- inner core grooves；72- spiral slots；73- through holes；8- changes primary coil；81-
Terminals；82- wires；Insulation crust after 9-；10- bonnets；101- bores a hole；131- control modules；132- charging modules；133-
Energy-storage module；134- discharge modules；135- performing modules.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be further described.
Fig. 2 to Fig. 4 is refer to, the present invention provides a kind of device of electromagnetic attraction form metal plate, including one performs
Device, the actuator includes the insulation crust of a built-in die cavity, and the insulation crust includes front insulation crust 5 and rear insulation crust
9, a tubular inductor 6 coordinated with the die cavity is provided with the insulation crust, it is equipped with one in the tubular inductor 6
Conversion primary coil 8, the interlayer of the conversion primary coil 8 arranges insulation, (please be joined with being helically wound around on tubular inductor
According to Fig. 7), a terminals 81 are drawn respectively for the both positive and negative polarity phase with the discharge module in the two ends of the conversion primary coil 8
Even, the front insulation crust is offered in a cylindrical groove 51, the cylindrical groove 51 and is disposed with an electromagnetism from inside to outside
4, one spacer 3 of screen and a single turn actuating coil 2, wherein the electromagnetic screen 4 and spacer 3 are all circular sheet, the single turn
Actuating coil 2 is connected with the tubular inductor 6, and the Surface coating of single turn actuating coil 2 has an insulation mould 1, described exhausted
Edge mould 1 is provided with the mold cavity 11 of the shape of a decision metal blank 14, after the rear portion of the rear insulation crust 9 is provided with one
Lid 10, is provided with the perforation 101 that a wire 82 for being connected with the terminals 81 is passed through on the bonnet 10, described rear exhausted
All portions of edge shell 9 are provided with one handle retainer ring 12, and the both sides of handle retainer ring 12 are correspondingly arranged on two handles 13.
Fig. 5 and Fig. 7 is refer to, the single turn actuating coil 2 is annular scale copper, and the side of the annular scale copper opens up
There is coil groove 23, along the coil groove 23 connecting plate 21 perpendicular to the annular scale copper, the connecting plate 21 are drawn
On be provided with installing hole 22 for being attached with the tubular inductor 6.
Fig. 6 is refer to, the bottom of the cylindrical groove 51 offers the rectangular channel 52 passed through for the connecting plate 21, described
All portions of front insulation crust 5 offer the connecting plate fixing hole 54 that is engaged with the screw 30 and it is some for the tubular
The fixing hole 53 that inductor 6 is fixed.
Fig. 3 and Fig. 7 is refer to, the profile of tubular inductor 6 is cylinder barrel shaped, is offered in the axial direction and the coil
The consistent inductor groove 61 in the direction of groove 23, the tubular inductor 6 is additionally provided near the side of single turn actuating coil 2
The installation end face 62 being engaged with the connecting plate 21, the Jing screws 30 of the connecting plate 21 are fixed with the installation end face 62, institute
State tubular inductor 6 to fix with a fixed cylinder 7 with the conversion primary coil 8, the fixed cylinder 7 is shaped as tubular, its axial direction
On offer the inner core groove 71 consistent with the direction of coil groove 23, the outer surface of the fixed cylinder 7 be machined with it is described
The spiral slot that conversion primary coil is engaged, and it is provided with through hole 73 at conversion two terminals 81 of extraction of primary coil 8.
Fig. 1 is refer to, also including a power-supply system, the power-supply system includes a control module 131, a charging module
132nd, an energy-storage module 133, a discharge module 134 and a performing module 135, the performing module 135 is described including being arranged at
Conversion primary coil 8, tubular inductor 6, electromagnetic screen 4, single turn actuating coil 2 and metal blank 14 in actuator；The control
Molding block 131 is connected respectively with the charging module 132, discharge module 134, performing module 135, the charging module 132 with
Discharge module 134 is connected in parallel on the two ends of the energy-storage module 133, at the beginning of the conversion of the discharge module 134 and the performing module 135
Level coil 8 connects.There is feedback, tool with charging module 132, discharge module 134 and performing module 135 in the control module 131
The parameter feedback of the reception conversion primary coil 8 of body, it is possible to control startup of the charging module 132 with discharge module 134 and pass
Close.
A kind of method of electromagnetic attraction form metal plate, it is characterised in that comprise the following steps：Step S1：The control
Molding block 131 controls 132 pairs of energy-storage modules 133 of the charging module and is charged；
Step S2：The control module 131 controls the electricity that the discharge module 134 will be stored in the energy-storage module 133
A pulse high current can be discharged and applied to the conversion primary coil 8 in the performing module 135；
Step S4：There is electromagnetic induction in the tubular inductor 6 of primary coil 8 pairs of changing, in tubular sensing
The two ends of the inductor groove 61 accumulation electromotive force of device 6；
Step S5：Because the single turn actuating coil 2 is connected with the two ends of inductor groove 61 of the tubular inductor 6,
The electromotive force produces the electric current of a low frequency amplitude and is applied in the single turn actuating coil 2, completes pulses switch
Process；
Step S6：The single turn actuating coil 2 is applied in after the electric current of the low frequency amplitude, in the electromagnetic screen 4
It is vortexed with all producing on metal blank 14, frequency f for being applied to single-turn circular coil actuating coil 2 is required according to Kelvin effectmaxEnough
It is low, that is, meet the requirement of following formula：
In formula：F is frequency；μ0For metal blank magnetic conductivity；γ is metal blank electrical conductivity；D is metal blank thickness.
Then because the inductive loop direction waveform produced in electromagnetic screen 4 and metal blank 14 is all basically identical, at both
In the case of close proximity, electromagnetic screen 4 and metal blank 14 are vortexed the magnetic field for producing and can cancel out each other a part, are so equivalent to
Magnetic field between electromagnetic screen 4 and metal blank 14 is eliminated, and the inductive loop on both lateral surfaces will produce electromagnetic force and incite somebody to action
Both push centre to, because electromagnetic screen 4 is fixed in the cylindrical groove 51, the metal blank 14 be subject to the effect of electromagnetic force to
The electromagnetic screen 4 is moved；
Step S7：The metal blank 14 is contacted with the insulation mould 1, is squeezed into the shape of mold cavity 11.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (7)
1. a kind of device of electromagnetic attraction form metal plate, it is characterised in that：Including actuator, the actuator includes setting
There is the insulation crust of built-in die cavity, the tubular inductor coordinated with the die cavity, the tubular are provided with the insulation crust
A conversion primary coil is equipped with inductor, a terminals are drawn respectively at the two ends of the conversion primary coil；It is described exhausted
Edge shell includes front insulation crust and rear insulation crust, and the front insulation crust offers cylindrical groove, in the cylindrical groove
Electromagnetic screen, spacer and single turn actuating coil are disposed with from inside to outside, and the single turn actuating coil senses with the tubular
Device connects, and the single turn actuating coil Surface coating has insulation mould, and the insulation mould is provided with the mould of form metal plate
Tool die cavity；Also include power-supply system, the power-supply system includes control module, charging module, energy-storage module, discharge module and holds
Row module, the performing module includes the conversion primary coil, tubular inductor, electromagnetic screen, single turn actuating coil and metal
Plate；The control module is connected respectively with the charging module, discharge module, performing module, and the charging module is connected to
Energy-storage module two ends, energy-storage module is also connected with discharge module；The discharge module and the primary line of the conversion of the performing module
Circle connection；Described primary coil is wrapped in tubular inductor, the lead of the tubular inductor output end and single-turn circular coil
It is electrically connected with；Described single-turn circular coil is placed between described electromagnetic screen and metal blank；Described discharge module is applied to just
Electric current in level coil is sinusoidal decay electric current, and the frequency of the sinusoidal decay electric current meetsIn formula：
F is frequency；μ0For metal blank magnetic conductivity；γ is metal blank electrical conductivity；D is metal blank thickness.
2. the device of electromagnetic attraction form metal plate according to claim 1, it is characterised in that：Insulation is outer after described
All portions of shell are provided with one handle retainer ring, and the handle retainer ring both sides are correspondingly arranged on two handles.
3. the device of electromagnetic attraction form metal plate according to claim 1, it is characterised in that：The single turn work
Coil is annular scale copper, and the side of the annular scale copper offers coil groove, along the coil groove draw perpendicular to
The connecting plate of the annular scale copper.
4. the device of electromagnetic attraction form metal plate according to claim 3, it is characterised in that：The cylindrical groove
Bottom offers the rectangular channel passed through for the connecting plate.
5. the device of electromagnetic attraction form metal plate according to claim 3, it is characterised in that：The tubular sensing
Device offers the inductor groove consistent with the coil groove direction, and the tubular inductor is near the single turn actuating coil
Side is additionally provided with the installation end face being engaged with the connecting plate, and the connecting plate is fixed with the installation end face.
6. the device of electromagnetic attraction form metal plate according to claim 1, it is characterised in that：The conversion is primary
The interlayer of coil arranges insulation, to be helically wound around on tubular inductor；The tubular inductor and the primary line of the conversion
Circle is fixed with a fixed cylinder.
7. a kind of electromagnetic attraction of the device of the electromagnetic attraction form metal plate based on described in any one of claim 1 to 6
The method of power form metal plate, it is characterised in that comprise the following steps：
Step S1：The control module controls the charging module and the energy-storage module is charged；
Step S2：The control module controls the discharge module and discharges and apply arteries and veins by the electric energy stored in the energy-storage module
High current is rushed to the conversion primary coil in the performing module；
Step S4：There is electromagnetic induction in the conversion primary coil, to the tubular inductor in the sense of the tubular inductor
Device groove two ends are answered to accumulate electromotive force；
Step S5：It is described electronic because the single turn actuating coil is connected with the inductor groove two ends of the tubular inductor
Gesture produces the electric current of a low frequency amplitude and is applied in the single turn actuating coil, completes the process of pulses switch；
Step S6：The single turn actuating coil is applied in after the electric current of the low frequency amplitude, in the electromagnetic screen and metal
On plate all produce vortex, because electromagnetic screen is fixed in the cylindrical groove, the metal blank be subject to electromagnetic force effect to
The electromagnetic screen motion；
Step S7：The metal blank and the insulation contacting dies, are squeezed into the shape of mold cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510668505.XA CN105170767B (en) | 2015-10-13 | 2015-10-13 | Device and method for forming metal sheet through electromagnetic attraction force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510668505.XA CN105170767B (en) | 2015-10-13 | 2015-10-13 | Device and method for forming metal sheet through electromagnetic attraction force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105170767A CN105170767A (en) | 2015-12-23 |
| CN105170767B true CN105170767B (en) | 2017-05-10 |
Family
ID=54893453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510668505.XA Expired - Fee Related CN105170767B (en) | 2015-10-13 | 2015-10-13 | Device and method for forming metal sheet through electromagnetic attraction force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105170767B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193546B (en) * | 2019-06-24 | 2020-07-10 | 华中科技大学 | Device and method for forming metal plate by single-power-supply single-coil electromagnetic attraction |
| CN113533494A (en) * | 2021-08-04 | 2021-10-22 | 南京迪威尔高端制造股份有限公司 | Magnetic flaw detection device for annular workpiece |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4135379A (en) * | 1976-09-27 | 1979-01-23 | Boeing Commercial Airplane Company | Portable head for electromagnetic pulling |
| US4986102A (en) * | 1989-05-23 | 1991-01-22 | The Boeing Company | Electromagnetic dent remover with tapped work coil |
| EP1881875A1 (en) * | 2005-05-12 | 2008-01-30 | Ralph Meichtry | Dent removing method and device |
| CN101406913A (en) * | 2007-10-10 | 2009-04-15 | 财团法人金属工业研究发展中心 | Electromagnetic forming device of sheet metal |
| CN101653803B (en) * | 2008-08-22 | 2011-03-02 | 首都航天机械公司 | Corrugated tube port magnetic-pulse precision corrector |
| KR101493570B1 (en) * | 2012-12-17 | 2015-02-16 | 서강대학교산학협력단 | Magnetic interactual pulling type sheet forming apparatus |
| CN205110492U (en) * | 2015-10-13 | 2016-03-30 | 福州大学 | Shaping sheet metal material's of electromagnetic attraction power device |
-
2015
- 2015-10-13 CN CN201510668505.XA patent/CN105170767B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105170767A (en) | 2015-12-23 |
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Granted publication date: 20170510 Termination date: 20211013 |