CN207103536U - A kind of electromagnet building mortion for weak inductive material - Google Patents
A kind of electromagnet building mortion for weak inductive material Download PDFInfo
- Publication number
- CN207103536U CN207103536U CN201721157996.2U CN201721157996U CN207103536U CN 207103536 U CN207103536 U CN 207103536U CN 201721157996 U CN201721157996 U CN 201721157996U CN 207103536 U CN207103536 U CN 207103536U
- Authority
- CN
- China
- Prior art keywords
- blank
- cavity plate
- coil
- support
- electromagnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model discloses a kind of electromagnet building mortion for weak inductive material, including for fixed support, multiple support posts and mould bases；The support is sequentially arranged above with lower bolster, die holder, cavity plate, blank, coil and Upper gasket, and the lower surface of the mould bases is close in the upper surface of the Upper gasket；Passage is provided with the cavity plate and is connected with the recessed groove of cavity plate, the passage, which is tightly connected, vavuum pump, and the two ends of the coil are connected with power supply circuit.The utility model in cavity plate by setting passage, air present in cavity plate is discharged in advance, or it is evacuated, form negative pressure, when coil sparks, caused powerful magnetic force promote blank to cavity plate be bonded when, non-resistance fitting can be realized, the effective form accuracy for ensureing blank shaping, fundamentally solves the problems, such as air cushion resistance.
Description
Technical field
Electromagnetic forming device field is the utility model is related to, more particularly to is filled for weak inductive sheet material electromagnetic forming
Field is put, is a kind of electromagnet building mortion for weak inductive material specifically.
Background technology
Electro-magnetic forming is to force metal to produce plastic deformation using the high-voltage pulse magnetic field of moment, belongs to high energy processing, phase
For traditional forming technology, there is good controllability and repeatability, and unit pressure is big suffered by blank, forming speed
It hurry up, processing noise is small, and equipment operation is simple with safeguarding.But the difficult processing of traditional electromagnetic induction device even can not process weakly conducting
Property material, meanwhile, be powered moment caused by powerful electromagnetic force the blank of plate is pressed into cavity plate while, due to cavity plate
Depressed area is indispensable to have portion of air, and when magnet coil produces instantaneous pressure, plate stress is concentrated, moment
During deformation presses to cavity plate, air inside cavity plate is formed air cushion by drastically compression, and moment of plate is molded to be formed
Resistance, so as to which the problem of plate forming is bad, and form accuracy is low can be caused.
Prior art：Chinese utility model patent, Application No. 201320787589.5, Authorization Notice No. CN
203578507 U disclose a kind of sheet metal electromagnetic forming equipment, and utility model patent problem to be solved is：Avoid
Sheet metal is used during roll forming due to implementing to roll using milling train and mould, at high temperature to sheet metal, easily right
The problem of plate surface forms mechanical scratch, and energy energy consumption is higher.After the patent mainly uses power supply and high-voltage capacitor parallel connection,
Connected again with coil and circuit switching；The mould of sheet metal and carrying jig, sheet metal quilt are sequentially placed below coil
Fixture is fixed on above mould.Good effect of the present utility model is：Electromagnetic force is the power of Workpiece shaping, during Workpiece shaping
Equipment and workpiece are without directly contacting, therefore workpiece surface is without mechanical scratch, without addition lubricant, workpiece surface quality compared with
It is good.Really, above-mentioned patented technology truly has improvement and progress relative to traditional machining, but solves existing electricity
Air cushion problem influences the problem of blank shaping in magnetic shaping, meanwhile, the sheet fabrication of weak inductive can not be played positive
Effect, in view of the above-mentioned problems, the utility model provides a kind of electromagnetic forming device for weak inductive material.
Utility model content
The purpose of this utility model is to provide a kind of electromagnetic forming device for weak inductive material mainly solve the back of the body
The following two aspects problem mentioned in scape technology：Firstth, solves traditional processing, such as metal plate contact processing is made to piece surface
Into directly injuring, cause surface quality to decline, or even cause flow harden, the problem of making part generation internal stress and be cracked；The
2nd, solve in existing electromagnetic forming, due to residual gas be present in cavity plate, during moment presses, because gas can not
Exclude in time, cause air cushion resistance, make forming parts precision low；3rd, solve the shaping of existing weak inductive material it is bad or
The problem of person can not be molded.
The utility model is achieved through the following technical solutions：
A kind of electromagnet building mortion for weak inductive material, including for fixed support, with the support
Multiple support posts that are vertical and being fixedly connected, the mould bases being connected is detachably fixed with the support post upper end；The machine
Seat, multiple support posts and the mould bases parallel with support form a space for being used to install coil and blank；On the support
Side is sequentially installed with lower bolster, die holder, cavity plate, blank, coil and Upper gasket, and the mould bases is close in the upper surface of the Upper gasket
Lower surface；Passage is provided with the cavity plate and is connected with the recessed groove of cavity plate, the passage is tightly connected and has vacuum
Pump, the two ends of the coil are connected with power supply circuit.
The operation principle general introduction of electromagnetic forming：
First, by blank and the sturdy installation of coil, support post is firm with fixing of the forming frame, and generally use adjusting nut enters
Row is fixed, and checks gap with micrometer after installing, it is ensured that the arbitrfary point maximal clearance between the edge and coil of blank is not
More than 0.02 millimeter.
Secondly, in order to prevent in power supply release current, so as to which moment produces high pressure, highfield power, blank short time set is made
Cause the air in cavity plate can not exclude moment to cause air cushion resistance so that blank shaping deficiency, it is necessary to by cavity plate still
The air deposited is transferred, what deserves to be explained is, because the compressibility of gas is very strong, therefore, it may not be necessary for being extracted into very high true
Reciprocal of duty cycle, as long as in forming process, the gas after compression will not be formed to the air cushion resistance to blank shaping, certainly, nothing
By from reality still in theory will, vacuum is higher, bigger for the negative pressure value that is formed between the upper and lower surface of blank, shaping
Compactness is better；But because electromagnetic force caused by instantaneous pressure is very huge, the remaining gas of small part is also not enough to base
The shaping of material causes to significantly affect.Therefore, just specific vacuum is not limited herein, this is for ordinary skill people
It is it will be apparent that can very easy be interpreted, so do not do unnecessary description for member.
Finally, power supply circuit is connected with coil, power supply circuit is formed effective path with coil, coil leads to
Electricity produces electromagnetic force and blank is carried out to form effect.
In order to ensure that the utility model can continuously work, while the utilization rate of the vavuum pump and energy consumption are dropped to most
Low, being also tightly connected between the vavuum pump and cavity plate has air accumulator.
In order to further reduce energy consumption, shut-off valve is provided between the air accumulator and cavity plate.
The operation principle of air accumulator and effect：Because electromagnetic forming is different from traditional sheet-metal formed, its forming process institute
The time needed is extremely short, therefore, after one-shot forming, it is only necessary to is off shut-off valve, gas storage
Negative pressure can be still kept in tank, when being molded next time, carry out second of being ventilated again after waiting electromagnetic forming preparation
Secondary shaping, the vacuum in air accumulator can be thus made full use of, effective condition of negative pressure is created for electromagnetic forming.
In order that the utility model has more extensive use range and for the formed precision requirement of thin-walled parts, keep away
Exempt from shaping excessively, the elastic fluid of conduction is provided between the blank and coil.
The effect of elastic fluid：For when effective form depth is significantly greater than the thickness of blank caused by electromagnetic force, easily
Cause blank overstress to cause the shaping of blank out of control, even result in directly scrapping for blank.In order to avoid such case
Occur, the elastic fluid of conduction is uniformly pressed together on to the top of blank, stress can be avoided under the momentary action of electromagnetic force
Concentrate and cause the local bulge of blank, occur the problems such as alice, the ability of the flexible deformation of elastic fluid can be extremely short
Disperse the stress concentrated in time, ensure the shaping patch mould of blank.
In order to strengthen the electric conductivity of blank and molding effect, make being more uniformly stressed for blank, the elastic fluid and line
The driving piece of conduction is additionally provided between circle.Because the principle of electromagnetic forming must be by its electric conductivity, the base of weak inductive
Expect that effect is often unconspicuous under the magnet coil effect of routine, main reason is that an effective strength can not be formed
When the size of magnetic field, especially coil in itself is smaller, electromagnetic force can only be produced to the local of blank, in the driving piece of high conductivity
The lower molding effect that can further improve blank of intense electromagnetic effect.What deserves to be explained is：Although elastic fluid and drive
Moving plate is all high conductivity, it is generally the case that elastic fluid is due to by the strength of materials, the special limitation of hardness, inside it
Certain impedance be present, when the thin-walled parts to weak inductive carry out electromagnetic forming, electromagnetic field is decayed by elastic fluid
Afterwards, the one-shot forming for reaching blank is tended not to, it is necessary to by driving the booster action of piece to realize and driving the covering of piece
Face domain must realize all standing of blank, and otherwise, the problem of producing alice occurs.
The utility model compared with prior art, has advantages below and beneficial effect：
（1）The utility model is in advance discharged air present in cavity plate, or take out by setting passage in cavity plate
Into vacuum, form negative pressure, when coil sparks, caused powerful magnetic force promote blank to cavity plate be bonded when, can realize
Non-resistance is bonded, and the effective form accuracy for ensureing blank shaping, fundamentally solves the problems, such as air cushion resistance.
（2）The utility model can once taken out by setting the air accumulator and vavuum pump that are connected with the recessed groove of cavity plate
Continuous several times are molded after gas, and energy consumption is low, are shaped, easy to operate.
（3）By placing elastic fluid on blank, effective stress point can be carried out to the less thin-walled plate of thickness
Dissipate, make the uniform force of whole plate, avoid stress excessive or stress concentration caused by plate overstress, shape by
Uncontrollable destruction problem.
（4）The utility model is provided with the driving of high conductivity for the blank of weak inductive also between blank and coil
Piece, and drive the area of piece to realize all standing to blank, the size of coil in itself is so not limited to, can preferably be improved
The electric conductivity contacted with blank, avoid influenceing the action effect of electromagnetic force because of the weak inductive of blank, cause shaping deficiency, by
The problem of power inequality.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Wherein 1- supports；2- lower bolsters；3- die holders；4- cavity plates；5- blanks；6- elastic fluids；7- drives piece；8- coils；
9- Upper gaskets；10- mould bases；11- adjusting nuts；12- support posts；13- vavuum pumps.
Embodiment
The utility model is described in further detail with reference to embodiment, but embodiment of the present utility model is not
It is limited to this.
Embodiment 1：
With reference to shown in accompanying drawing 1, a kind of electromagnet building mortion for weak inductive material, including for fixed machine
Seat 1, and the multiple support posts 12 that are fixedly connected vertical with the support 1, detachably consolidate with the upper end of support post 12
Surely the mould bases 10 connected；The support 1, multiple support posts 12 and the mould bases 10 parallel with support 1 form one and are used to install
The space of coil 8 and blank 5；The support 1 be sequentially arranged above with lower bolster 2, die holder 3, cavity plate 4, blank 5, coil 8 and on
The lower surface of the mould bases 10 is close in pad 9, the upper surface of the Upper gasket 9；Be provided with the cavity plate 4 passage and with it is recessed
The recessed groove connection of mould 4, the passage, which is tightly connected, vavuum pump 13, the two ends and power supply circuit of the coil 8
Series connection.In the present embodiment, the upper end of support post 12, which is detachably fixed, to be connected on mould bases 10, specific using vertical in support
The mode that the upper end of post 12 is arranged adjusting nut 11 is realized and is detachably fixed.For this area, as long as can realize reliable
Fix and dismounting can be realized, all should belong in this case express ranges, including but not limited to the conventional connected mode such as screw thread.
The operation principle general introduction of electromagnetic forming：
First, by blank 5 and 8 sturdy installation of coil, support post 12 and mould bases 10 are firmly installed, generally use regulation
Nut is fixed, and checks gap with micrometer after installing, it is ensured that the arbitrfary point between the edge and coil 8 of blank 5 is most
Wide arc gap is not more than 0.02 millimeter.
Secondly, in order to prevent in power supply release current, so as to which moment produces high pressure, highfield power, the short time set of blank 5 is made
Cause the air in cavity plate 4 can not exclude moment to cause air cushion resistance, so that the shaping deficiency of blank 5 is, it is necessary to by cavity plate 4
The air remained is transferred, what deserves to be explained is, because the compressibility of gas is very strong, therefore, it may not be necessary for being extracted into very high
Vacuum, as long as in forming process, the gas after compression will not be formed to the air cushion resistance to blank shaping, certainly,
No matter from reality or in theory will, vacuum is higher, bigger for the negative pressure value that is formed between the upper and lower surface of blank 5, into
The compactness of type is better；But because electromagnetic force caused by instantaneous pressure is very huge, the remaining gas of small part is also not enough to
Shaping to blank 5 causes to significantly affect.Therefore, just specific vacuum is not limited herein, this is common for this area
It is it will be apparent that can very easy be interpreted, so do not do unnecessary description for technical staff.
Finally, power supply circuit is connected with coil 8, power supply circuit is formed effective path, coil with coil 8
8 energizations produce electromagnetic force and blank 5 are carried out to form effect.
Embodiment 2：
In order to ensure that the utility model can continuously work, while the utilization rate of the vavuum pump 13 and energy consumption are dropped to most
Low, on the basis of the structure and operation principle of embodiment 1, being also tightly connected between the vavuum pump 13 and cavity plate 4 has gas storage
Tank.
In order to further reduce energy consumption, shut-off valve is provided between the air accumulator and cavity plate 4.
The operation principle of air accumulator and effect：Because electromagnetic forming is different from traditional sheet-metal formed, its forming process institute
The time needed is extremely short, therefore, after one-shot forming, it is only necessary to is off shut-off valve, gas storage
Negative pressure can be still kept in tank, when being molded next time, carry out second of being ventilated again after waiting electromagnetic forming preparation
Secondary shaping, the vacuum in air accumulator can be thus made full use of, effective condition of negative pressure is created for electromagnetic forming.
Embodiment 3：
In order that the utility model has more extensive use range and for the formed precision requirement of thin-walled parts, keep away
It is excessive to exempt from shaping, on the basis of the structure and principle of embodiment 2, with reference to shown in accompanying drawing 1, is set between the blank 5 and coil 8
It is equipped with the elastic fluid 6 of conduction.
The effect of elastic fluid 6：For when effective form depth is significantly greater than the thickness of blank 5 caused by electromagnetic force, holding
Easily causing the overstress of blank 5 causes the shaping of blank 5 out of control, even results in directly scrapping for blank 5.In order to avoid this feelings
The generation of condition, the elastic fluid 6 of conduction is uniformly pressed together on to the top of blank 5, can be kept away under the momentary action of electromagnetic force
Concentrated from power and cause the local bulge of blank 5, occurred the problems such as alice, the ability of 6 flexible deformation of elastic fluid can
Disperse the stress concentrated within the extremely short time, ensure the shaping patch mould of blank 5.
In order to strengthen the electric conductivity of blank and molding effect, make being more uniformly stressed for blank, the elastic fluid 6 and line
The driving piece 7 of conduction is additionally provided between circle 8.Due to electromagnetic forming principle must by its electric conductivity, weak inductive
The effect in the case where the magnet coil 8 of routine acts on of blank 5 is often unconspicuous, main reason is that one can not be formed effectively
When the size of strong magnetic field, especially coil 8 itself is smaller, electromagnetic force can only be produced to the local of blank 5, in high conductivity
The lower molding effect that can further improve blank 5 of intense electromagnetic effect of driving piece 7.What deserves to be explained is：It is although elastic
Medium 6 and driving piece 7 be all high conductivity, it is generally the case that elastic fluid 6 due to by the strength of materials, hardness it is special
, there is certain impedance in limitation, when the thin-walled parts to weak inductive carry out electromagnetic forming, electromagnetic field passes through bullet inside it
Property medium 6 decay after, tend not to the one-shot forming for reaching blank, it is necessary to by driving the booster action of piece 7 to realize and
The coverage rate domain of driving piece 7 must realize all standing of blank, and otherwise, the problem of producing alice occurs.
It is described above, only it is preferred embodiment of the present utility model, any formal limit is not done to the utility model
System, every any simple modification made according to the technical essence of the utility model to above example, equivalent variations, each falls within
Within the scope of protection of the utility model.
Claims (5)
1. a kind of electromagnet building mortion for weak inductive material, including for fixed support（1）, with the support
（1）Multiple support posts that are vertical and being fixedly connected（12）, with the support post（12）Upper end is detachably fixed connection
Mould bases（10）；The support（1）, multiple support posts（12）With with support（1）Parallel mould bases（10）One is formed to be used to pacify
Install coil（8）And blank（5）Space；It is characterized in that：The support（1）It is sequentially arranged above with lower bolster（2）, die holder
（3）, cavity plate（4）, blank（5）, coil（8）And Upper gasket（9）, the Upper gasket（9）Upper surface be close to the mould bases（10）
Lower surface；The cavity plate（4）Inside it is provided with passage and and cavity plate（4）Recessed groove connection, the passage is tightly connected
There is vavuum pump（13）, the coil（8）Two ends connected with power supply circuit.
A kind of 2. electromagnet building mortion for weak inductive material according to claim 1, it is characterised in that institute
State vavuum pump（13）With cavity plate（4）Between be also tightly connected and have air accumulator.
A kind of 3. electromagnet building mortion for weak inductive material according to claim 2, it is characterised in that institute
State air accumulator and cavity plate（4）Between be provided with shut-off valve.
4. a kind of electromagnet building mortion for weak inductive material according to any one in claim 1-3,
Characterized in that, the blank（5）With coil（8）Between be provided with conduction elastic fluid（6）.
A kind of 5. electromagnet building mortion for weak inductive material according to claim 4, it is characterised in that institute
State elastic fluid（6）With coil（8）Between be additionally provided with conduction driving piece（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721157996.2U CN207103536U (en) | 2017-09-11 | 2017-09-11 | A kind of electromagnet building mortion for weak inductive material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721157996.2U CN207103536U (en) | 2017-09-11 | 2017-09-11 | A kind of electromagnet building mortion for weak inductive material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207103536U true CN207103536U (en) | 2018-03-16 |
Family
ID=61576085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721157996.2U Expired - Fee Related CN207103536U (en) | 2017-09-11 | 2017-09-11 | A kind of electromagnet building mortion for weak inductive material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207103536U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070386A (en) * | 2021-03-30 | 2021-07-06 | 北京东方德兴科技有限公司 | Electro-hydraulic forming hydraulic machine and using method thereof |
| CN114472667A (en) * | 2020-11-11 | 2022-05-13 | 湖北汽车工业学院 | Electromagnetic forming device based on flexible medium |
| CN114713703A (en) * | 2022-03-11 | 2022-07-08 | 华中科技大学 | Electromagnetic forming device and method without air influence |
-
2017
- 2017-09-11 CN CN201721157996.2U patent/CN207103536U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472667A (en) * | 2020-11-11 | 2022-05-13 | 湖北汽车工业学院 | Electromagnetic forming device based on flexible medium |
| CN113070386A (en) * | 2021-03-30 | 2021-07-06 | 北京东方德兴科技有限公司 | Electro-hydraulic forming hydraulic machine and using method thereof |
| CN114713703A (en) * | 2022-03-11 | 2022-07-08 | 华中科技大学 | Electromagnetic forming device and method without air influence |
| CN114713703B (en) * | 2022-03-11 | 2022-11-22 | 华中科技大学 | Electromagnetic forming device without air influence and forming method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207103536U (en) | A kind of electromagnet building mortion for weak inductive material | |
| CN111037207B (en) | Multi-field cooperative coupling rolling platform | |
| CN103341546B (en) | Device and method for forming light alloy shell formed part through magnetic pulses | |
| CN208214878U (en) | A kind of new CNC side plate clamping tooling | |
| CN109950039A (en) | A kind of molding machine and radiation ring preparation method of sintered NdFeB radiation ring | |
| CN103394577A (en) | Forming method of titanium alloy thin-walled casing | |
| CN209156860U (en) | A kind of stamping equipment for punching press auto parts | |
| WO2022170701A1 (en) | Electrically assisted forming device and process for fuel cell metal plate | |
| CN104966605A (en) | Forming process of sintered NdFeB tegular magnet and modular mold thereof | |
| CN103639286A (en) | Electromagnetic pulse drawing forming integration experimental platform for flat pieces | |
| CN104416291A (en) | Panel pressing device applied to laser tailor-welding | |
| CN103317027A (en) | Abrasion-resistant stamping die | |
| CN102847939B (en) | Magnetic material powder forming mold with non-magnetic isolating structure | |
| CN209792365U (en) | Metal bipolar plate manufacturing device | |
| CN218362085U (en) | Pressing forming device for processing sintered neodymium-iron-boron permanent magnet | |
| CN213224287U (en) | A mould for producing oblique tile of sintered neodymium iron boron | |
| CN210208963U (en) | Fixing device for preventing processing deformation of throttle valve sheet | |
| CN204835858U (en) | Inner arc working face magnetic shoe mould | |
| CN201042855Y (en) | Wet-press shaping mold for permanent ferrite product | |
| CN204810575U (en) | Inductor boots | |
| CN217197353U (en) | Printing machine magnetic table frame capable of reducing manufacturing cost | |
| CN215357943U (en) | Electric permanent magnetic chuck for grinding circular saw blade | |
| CN207818478U (en) | A kind of low voltage AC contactor iron core | |
| CN220838307U (en) | Surface strengthening treatment equipment for metal shaft products | |
| CN104659975A (en) | VPI hydraulic ground forming mold device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20210911 |