CN109821913A - A kind of electricity auxiliary extraction forming device - Google Patents
A kind of electricity auxiliary extraction forming device Download PDFInfo
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- CN109821913A CN109821913A CN201910097356.4A CN201910097356A CN109821913A CN 109821913 A CN109821913 A CN 109821913A CN 201910097356 A CN201910097356 A CN 201910097356A CN 109821913 A CN109821913 A CN 109821913A
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- die sleeve
- silk material
- drawing mold
- auxiliary extraction
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- 230000005611 electricity Effects 0.000 title claims description 18
- 239000000463 material Substances 0.000 claims abstract description 155
- 238000005491 wire drawing Methods 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 21
- 230000003993 interaction Effects 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 12
- 230000005283 ground state Effects 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 147
- 239000002184 metal Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 15
- 238000004513 sizing Methods 0.000 description 14
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- 238000010586 diagram Methods 0.000 description 6
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- 238000005461 lubrication Methods 0.000 description 4
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- 229910020073 MgB2 Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
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- 238000001354 calcination Methods 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a kind of electric auxiliary extraction forming devices, comprising: die box part, pulse power generating device, drum part and transmission gear for electric motor；Die box part includes the first drawing mold core and the second drawing mold core, drum part include round turntable；One tangent line of the central axes and round turntable of the wire drawing hole of the first drawing mold core and the wire drawing hole of the second drawing mold core coincides, and the silk material that when work draws out is wrapped on the round turntable rotated counterclockwise with setting speed；Round turntable is used to provide the pulling capacity of adjustable section for silk material, and the direction of pulling capacity is overlapped with the central axes of the wire drawing hole of the first drawing mold core and the second drawing mold core；Pulse power unit is used to improve the plasticity of rapidoprint to provide pulse current to drawing silk material；The speed rotation that transmission gear for electric motor is used to that the round turntable to be driven to set.The present invention is using double drawing mold cores, the air gap that can be eliminated silk material and be powered between unit, and then prevents spark phenomenon from the root.
Description
Technical field
The invention belongs to materials plastic forming fields, more particularly, to a kind of electric auxiliary extraction forming device.
Background technique
Hard-drawn technique is the main path for producing all kinds of metal wire materials at present, but it has certain limitation, cold-drawn silk material
Surface quality and material property be difficult to be guaranteed, easily there is scratch defects, residual stress and elastic recovery in silk material surface
It is larger, and annealing operation need to be generally arranged in cold-drawn, process is complicated.For the metal material such as titanium alloy, zirconium of intensity high-ductility difference
Alloy etc. easily occurs being broken and turning round in excessive, cross-sectional uniformity the silk material using traditional hard-drawn technique preparation draw ratio
Song influences silk material final product quality etc.；There are also a kind of advanced metal material such as bulk amorphous alloys and high-entropy alloy, have height
The advantages that mechanical strength, high elastic modulus, good corrosion resistance and excellent electromagnetic performance, but due to brittleness at room temperature, nothing
Method is processed into silk material by cold-drawing technology.
Electric auxiliary extraction technique is a kind of important way of the current metal wire material processing problem for solving poor, the difficult deformation of plasticity
Diameter is introduced pulse current during metal wire drawing, the resistance of deformation of material is reduced using electro plasticity effect, improves and extends
Property, to realize the production of silk material, deformation while, reduces the deformed residual stress of material, improves the machine of silk material product
Tool performance improves the quality of production and efficiency of drawing process.
Although for theoretically, electricity auxiliary wire drawing process can be used for processing the material of such difficult deformation and the knot of difficult forming
Structure, but electricity auxiliary wire drawing process is related to that physical field is various, the more difficult, device of specific implementation is not easy to develop, at present existing electricity auxiliary
Main problem existing for drawing apparatus has:
(1) to needing the metal wire material for carrying out drawing to pass to the biggish pulse of peak current density in electricity auxiliary wire drawing process
Electric current, the contact being powered between unit and silk material are not tightly formed the air gap, the potential that pulse current profile is unevenly formed
Difference can puncture the air gap so as to cause spark phenomenon, and calcination silk material destroys microstructure, silk material is caused frequently to be broken.Patent
Two output ends of high energy pulse power supply are separately connected two conductive fixtures in CN 200961143Y, and conductive fixture includes upper/lower electrode
High energy pulse electric current is imported into metal wire rod by upper/lower electrode briquetting, easily causes spark phenomenon by briquetting.Patent CN
102489533 A propose the electric plastic pulling device and Hubbing method of a kind of MgB2, and wherein the positive and negative electrode wiring element of power supply is
The rolling touch electrode for the Multi-contact being made of multipair idler wheel, multiple idler wheels increase the contact surface of wire rod and electrode despite the use of
Product, but still be the form of point contact, contact area very little causes pulse current to be unevenly distributed on the contact surface；And it rolls
The way of contact of dynamic formula is easy to lead to poor contact because the surface of silk material is irregular, still easily causes to strike sparks.
(2) since different metal materials has different characteristics, using electro plasticity deformation technique and device also each not phase
Together, existing reported electric auxiliary extraction device is of limited application.The electric plastic pulling that 102489533 A of patent CN is proposed
In device the waveform channel of power supply positive and negative electrode wiring element be also only applicable to plasticity it is good and be easy bending silk material, be unsuitable for
The amorphous alloy etc. of the big plasticity difference of hardness；And the distance of power supply positive and negative electrode wiring element is farther out, be not suitable for ground state silk material or
The very short metal material of initial bar, and the energy consumption of non-acting is larger.
(3) drawing diaphragm capsule part does not have approach cone and outlet cone in existing most electricity auxiliary drawing apparatus, is unfavorable for
The importing of lubricant influences the surface quality and performance of silk material so that silk material drawing is difficult；The friction being powered between unit and silk material
It will lead to abrasion between the two, the damage that excessive pulling capacity results even in power-up unit falls off, and influences the drawing of silk material
Process.This does not meet actual production requirement.
The above problem limits the industrial applicability of electric auxiliary extraction technique.
Summary of the invention
In view of the drawbacks of the prior art, the object of the present invention is to provide a kind of electric auxiliary extraction forming devices, it is intended to
The serious spark phenomenon in existing electricity auxiliary extraction technology between silk material and power-up unit, anode power-up unit and cathode is solved to be powered on
Cell spacing farther out, the production requirement that is only applicable to drawing ground state silk material or the longer silk material of initial bar, is not accordant to the old routine
Problem, the metal wire material line footpath that various high-intensitive, difficult deformations may be implemented in the present invention is controllable, performance quality is excellent, successional
Production.
To achieve the above object, the present invention provides a kind of electric auxiliary extraction forming devices, comprising: die box part, pulse
Power generator, drum part and transmission gear for electric motor；The die box part includes the first drawing mold core and the second drawing die
Core, the drum part include round turntable；The wire drawing of the wire drawing hole of the first drawing mold core and the second drawing mold core
The central axes in hole and a tangent line of the round turntable coincide, and the silk material that when work draws out is wrapped in inverse with setting speed
On the round turntable of hour hands rotation；The round turntable is used to provide the pulling capacity of adjustable section, the pulling capacity for silk material
Direction be overlapped with the central axes of the wire drawing hole of the first drawing mold core and the second drawing mold core；The pulse power list
Member is for improving the plasticity of rapidoprint to provide pulse current to drawing silk material；The transmission gear for electric motor is for driving institute
The speed rotation that round turntable is stated to set.
Further, the die box part further include: positive pole connecting bar, power cathode connecting bar, insulation module,
First die sleeve, the second die sleeve and fixed frame；The positive pole connecting bar is connected to the first die sleeve, first drawing die
Core is placed in the first die sleeve；The power cathode connecting bar is connected to the second die sleeve, and the second drawing mold core is placed on the second mould
In set；The insulation module is placed between the first die sleeve and the second die sleeve, and is fixedly connected on fixed frame；The insulation
Module is used to completely cut off first die sleeve and second die sleeve and ensures that pulse current passes through to drawing silk material.
Further, the first drawing mold core and the second drawing mold core are arranged in the same horizontal line, and in two mold cores
Axis coincides.
Further, the first die sleeve is provided with cylindrical groove and circle of the bottom with a pair of of extension ear slot to be hollow, axial
Loop overlapping shape, the shape of cylindrical groove and the shape of the first drawing mold core match.
Further, the second die sleeve includes: the first component and second component, and the second component is set in described first
It the outside of component and is fixed on the first component；The structure of the first component is identical as the structure of first die sleeve；
The second component is hollow, the axial annulus shell-like for being provided with cylindrical groove, and the inner surface design of annulus shell-like has screw thread；Institute
The size and screw thread for stating the first component match with the size of the second component and screw thread respectively.
Further, the central axis of the central axis of the first die sleeve and second die sleeve is arranged in same horizontal line
On, and the first die sleeve is staggered relatively with the bottom for extending ear slot with the bottom and the second die sleeve for extending ear slot.
Further, the distance between the first drawing mold core and the second drawing mold core by the first die sleeve, the second die sleeve and
The setting position of insulation module and apart from determination.
Further, pulse power generating device includes: pulse power unit, control unit and man-machine interaction unit；
The pulse power unit is 0~3000A/mm for providing magnitude current density2, current pulse width be 100 μ s~
The pulse current that 1000ms and current pulse frequency are 5~5000Hz；Described control unit is defeated for controlling pulse power unit
Out, and voltage in drawing process, electric current, temperature data are acquired, and man-machine interaction unit will be fed back to after data processing；The people
Machine interactive unit is for providing human-computer interaction interface and parameter setting information being transferred to described in described control unit and reception
The status information of control unit output is simultaneously shown.
Further, drum part further include: connecting line, when initial drawing or ground state silk material itself are too short, silk material
It cannot independently be connected on the round turntable of drum part, the connecting line can be connected with silk material, auxiliary extraction.
It further, further include shield, the shield is arranged on the fixed frame, and it is retractable, it is used for
Pass through isolation during electric auxiliary extraction and realizes protection staff.
Compared with prior art, the invention has the following advantages:
(1) electric auxiliary extraction forming device is using double drawing mold cores, and drawing mold core also serves as power-up unit, the first drawing die
Core also serves as the first power-up unit, and the second drawing mold core also serves as the second power-up unit, during electric auxiliary extraction silk material, drawing
Deformation occurs to silk material applied force to making silk material for the inside wire drawing hole of mold core, the wire drawing internal surface of hole of drawing mold core and silk material
Contact between tube reducing deformed area is the closest, and drawing mold core also serves as the modeling that pulse current is introduced directly into silk material by power-up unit
Property deformed area, while can eliminate silk material and be powered on unit between contact it is not close and formed the air gap, shut out from the root
Exhausted spark phenomenon improves the surface quality of silk material, microstructure and properties after electric auxiliary extraction.
(2) double drawing mold cores in electric auxiliary extraction device are closely to be arranged, by by the first drawing mold core and the
The drawing that spacing between two drawing mold cores reduces to realize the metal wire material of various length is capable of coiled take-up including length
The metal materials such as metal wire material and ground state silk material or the very short amorphous alloy of initial bar length.First drawing mold core and
Two drawing mold cores rely on the short distance installation of the first die sleeve, the second die sleeve and insulation module to realize the spacing between double drawing mold cores
Reduce, and then reduce the distance between the first power-up unit and the second power-up unit, solves in existing electric auxiliary extraction device just
Pole power-up unit and cathode power-up cell spacing farther out, be only applicable to asking for drawing ground state silk material or the longer silk material of initial bar
Topic, has widened the application range of electric auxiliary extraction technique.
(3) the drawing tube reducing of two passages can be disposably carried out when single drum rotation pulls silk material during electric auxiliary extraction
Process, and the design of each structure member is bonded needs of production in device, can greatly improve production efficiency.
Detailed description of the invention
Fig. 1 is the overall structure diagram of electric auxiliary extraction forming device provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of die box part in electric auxiliary extraction forming device provided in an embodiment of the present invention；
Fig. 3 is die sleeve structure schematic diagram in electric auxiliary extraction forming device provided in an embodiment of the present invention, wherein (a) is the
The structural schematic diagram of one die sleeve is (b) structural schematic diagram of the second die sleeve；
Fig. 4 is the diagrammatic cross-section of die box part in electric auxiliary extraction forming device provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The present invention provides a kind of electric auxiliary extraction forming devices, including die box part, pulse power generating device, reel
Component, shield and transmission gear for electric motor.
Die box part include: the first drawing mold core, the second drawing mold core, positive pole connecting bar, power cathode connecting bar,
Insulation module, the first die sleeve, the second die sleeve and fixed frame；The positive pole connecting bar is connected to the first die sleeve, described
First drawing mold core is placed in the first die sleeve；The power cathode connecting bar is connected to the second die sleeve, and the second drawing mold core is put
It sets in the second die sleeve；The insulation module is placed between the first die sleeve and the second die sleeve, and is bolted and fixed
On fixed frame.
First drawing mold core and the second drawing mold core not only act as the effect of drawing mould, also serve as power-up unit, and first draws
Draft core is the first power-up unit, and the second drawing mold core is the second power-up unit；Drawing mold core also serves as the mode energy of power-up unit
Enough spark phenomenons generated when solving electric auxiliary extraction silk material from the root, specific manifestation are as follows: in the prior art, power-up unit and
The air gap not generated closely is contacted between silk material to be punctured to generate electric spark by potential difference, and in the present invention, drawing
The inside wire drawing hole of mold core makes silk material to silk material applied force, and deformation occurs, between the tube reducing deformed area of drawing mold core and silk material
Contact it is the closest, drawing mold core also serves as power-up unit and utilizes closed seamless between drawing mold core and the tube reducing deformed area of silk material
Contact, pulse current is introduced directly into the plastically deforming area of silk material, at the same can be avoided power-up unit contacted not with silk material
Close and formation the air gap, prevents spark phenomenon from the root.
The inside wire drawing hole of first drawing mold core and the second drawing mold core is in close contact with to drawing silk material, to drawing silk material
The inside wire drawing hole for sequentially passing through the first drawing mold core and the second drawing mold core, by pulling silk material to travel forward, silk material and two
Face contact, slidingtype relative motion is formed between a power-up unit, is closed to introduce parameter during metal wire drawing
Suitable pulse current reduces resistance of deformation when material is plastically deformed using electro plasticity effect.
The first drawing mold core and the second drawing mold core closes for the hard customized according to the metal wire material of wanted drawing
Golden mold core, used material have good electric conductivity, and hardness is high, wear resistance is strong；First drawing die
Core and the second drawing mold core are the internal axial cylindrical body for being provided with wire drawing hole, the Outside Dimensions of cylindrical body, such as perimeter, high
According to needing to be designed, to match and be nested in the first die sleeve or the second die sleeve, internal wire drawing hole can be divided into five regions, packet
Include approach cone, lubrication zone, workspace, sizing area and outlet cone, the size of wire drawing hole, such as approach cone, lubrication zone and outlet cone
Angle and length, the compression ratio of workspace, the length of sizing area, the size of the metal wire material obtained according to desired drawing and determine
It is fixed；The drawing mold core can require that disassembly replacement can be carried out according to the drawing size of metal wire material.In the prior art, most
Anode power-up unit and cathode power-up unit are closely fitted to respectively at the entrance and exit of drawing mold core, and are powered on the shape of unit
Shape design feature is unfavorable for the importing of lubricant, easily scuffing silk material；And in the present invention, drawing mold core also serves as power-up unit, both
It ensures the close contact with silk material, avoids striking sparks, and because the features of shape of drawing mold core itself facilitates the importing of lubricant,
Ensure the surface quality and performance of silk material.
The first drawing mold core and the second drawing mold core is mounted in same horizontal line, and the central axes phase of two mold cores
It is overlapped.
The difference of the first drawing mold core and the second drawing mold core is mainly the size of internal wire drawing hole, and first draws
Initial initial bigger into silk diameter, the first drawing into silk diameter than workspace in the second drawing mold core of workspace in draft core
The diameter of sizing area is more bigger than the diameter of sizing area in the second drawing mold core in mold core.
In embodiments of the present invention, the first die sleeve and the second die sleeve can it is excellent using electric conductivity, heat dissipation performance is excellent
Good, hardness and the high material of intensity are made.
First die sleeve is hollow, axial cylindrical groove, the bottom of being provided with a pair of annulus shell-like for extending ear slot, wherein justifying
The shape of cylindrical groove and the shape of the first drawing mold core match, for placing and fixing the first drawing mold core.
The structure of second die sleeve and the first die sleeve is slightly different, and is specifically made of the first component and second component, wherein the
The structure of one component is identical as the structure of the first die sleeve, is also hollow, axial cylindrical groove, the bottom of being provided with a pair of of extension ear
The annulus shell-like of slot, and the outer surface design of annulus set has screw thread, second component is hollow, the axial annulus set for being provided with cylindrical groove
Shape, and the inner surface design of annulus shell-like has a screw thread, the size and screw thread of the first component respectively with the size of second component and spiral shell
Line matches, and second component can be by thread bush in the outside of the first component, and is tightly secured on the first component, wherein first
The shape of the cylindrical groove of component and the shape of the second drawing mold core match, for placing the second drawing mold core, second component
For fixing the second drawing mold core, and bear pulling capacity.
The central axis of first die sleeve and the second die sleeve is mounted on same horizontal line, and having for the first die sleeve extends ear
The bottom of slot is staggered relatively with the bottom for extending ear slot with the second die sleeve, extends ear slot and is easily installed fixation.
Insulation module is made of the insulation board of two pieces of excellent insulating properties, two pieces of insulation boards be individually positioned in the first die sleeve and
In upper and lower corresponding two pairs of extensions ear slot of second die sleeve, for completely cutting off the first die sleeve and the second die sleeve, it is ensured that pulse current
By cooperating to drawing silk material, and with ear slot is extended, it is fixedly mounted on fixed frame.
The installation site and distance of first drawing mold core, the second drawing mold core, the first die sleeve, the second die sleeve and insulation module
As follows: the first drawing mold core is placed in the first die sleeve, and the second drawing mold core is placed in the second die sleeve, the first die sleeve and second
It is connected and is fixedly mounted by insulation module between die sleeve；First drawing mold core and the second drawing mold core, i.e., first power-up unit and
Second power-up the distance between unit is by the first die sleeve, the installation site of the second die sleeve and insulation module and apart from determining；It relies on
Short distance installation between first die sleeve, the second die sleeve and insulation module, the first drawing mold core and the second drawing mold core are using close
The setting of distance installation, i.e., the short distance between the first power-up unit and the second power-up unit, can shorten electric auxiliary extraction process
In the length of metal wire material that is acted on by pulse current, in this way, the forming of electric auxiliary extraction can not only be applied to length can be coiled
The metal wire material of take-up can equally be well applied to the metal materials such as ground state silk material or the very short amorphous alloy of initial bar, solve
In the prior art, anode power-up unit and cathode power-up cell spacing farther out, are only applicable to drawing ground state silk material or initial bar
The problem of longer silk material；Also, what the short distance setting of the first power-up unit and the second power-up unit acted on pulse current
Region is limited in the plastically deforming area of metal, reduces unnecessary Joule heat.
Positive pole connecting bar and power cathode connecting bar are the excellent bolt of electric conductivity, and the positive pole connects
Bar is fixed in the positive terminal stick slot of the first die sleeve, and the anode of positive pole connecting bar and pulse power generating device
It is connected；Power cathode connecting bar is fixed in the negative terminal stick slot on the first component of the second die sleeve, and power cathode connects
Bar is connected with the cathode of pulse power generating device；In this way, the pulse current that pulse power generating device generates passes through power supply
Positive terminal stick and power cathode connecting bar are introduced on draw-off gear, pulse current from the anode of pulse power generating device,
Successively pass through positive pole connecting bar, the first die sleeve, the first drawing mold core, silk material, the second drawing mold core, the second die sleeve, power supply
Negative terminal stick, returns to the cathode of pulse power generating device, to form the flow cycle of pulse current.
Pulse power generating device includes pulse power unit, control unit and man-machine interaction unit；Man-machine interaction unit
For provide human-computer interaction interface and by parameter setting information be transferred to described control unit and receive described control unit it is defeated
Status information out is simultaneously shown；Control unit acquires voltage, electricity in drawing process for controlling the output of pulse power unit
The data such as stream, temperature, and man-machine interaction unit will be fed back to after data processing；Pulse power unit is used for defeated to drawing silk material
Pulse current out improves the plasticity of rapidoprint；Pulased power supply unit is exportable: magnitude current density j=0~3000A/mm2,
Current pulse width tp=100 μ s~1000ms, the pulse current of current pulse frequency f=5~5000Hz.
The critical component of drum part is round turntable, can adjust revolving speed and provide adjustable drawing for the drawing of silk material
Pull out force；The central axes of wire drawing hole of the first drawing mold core and the second drawing mold core in die box part and one of round turntable cut
Line coincides, and the silk material drawn out is wrapped on the drum part rotated counterclockwise with setting speed, and drum part mentions for silk material
For pulling capacity, this pulling capacity is adjustable, the central axes weight of the wire drawing hole of direction and the first drawing mold core and the second drawing mold core
It closes；The drum part is equipped with connecting line, and when initial drawing or ground state silk material itself are too short, silk material cannot be independently connected to
On the round turntable of drum part, the connecting line of outfit can be connected with silk material, auxiliary extraction.
Transmission gear for electric motor configures AC frequency conversion driving control system, and configures hard-tooth surface speed reducer, and motor speed can be
Stepless changing is carried out within 3-30m/min；Motor in the transmission gear for electric motor is connected to the reel by transmission belt
Component, the speed rotation for driving the round turntable of drum part to set.
Shield is made of insulating materials, is mounted on fixed frame by the bolt that can be reversed, retractable, convenient
Staff operates the setting of electric auxiliary extraction, and isolating device protects staff during electric auxiliary extraction.
When work, the first drawing mold core in die box part, the first die sleeve, the second die sleeve are sequentially passed through to drawing silk material
The second component of the first component, the second drawing mold core and the second die sleeve, is wound into from the silk material after drawing tube reducing in die box part
On drum part；During described, deformation occurs by the power of the inside wire drawing hole of the first drawing mold core for silk material, and silk material is drawn with first
The wire drawing internal surface of hole of draft core is in close contact and occurs to slide relatively, and pulse current introduces silk via the first drawing mold core
Material carries out the silk material tube reducing deformation of the pulse current auxiliary of the first passage；Between first drawing mold core and the second drawing mold core
Silk material can be acted on by the electro plasticity processing of pulse current, improve inside of the silk material after the first passage is plastically deformed
Defect and material property；Deformation occurs by the power of the inside wire drawing hole of the second drawing mold core for silk material, silk material and the second drawing mold core
Wire drawing internal surface of hole be in close contact and occur it is opposite slide, pulse current is exported from silk material via the second drawing mold core, stream
It is back to the pulse power, carries out the silk material tube reducing deformation of the pulse current auxiliary of the second passage；Theoretically, described to drawing silk material
Inlet wire diameter when by the first drawing mold core is greater than linear diameter, and inlet wire diameter when by the second drawing mold core is equal to warp
That crosses the first drawing mold core goes out linear diameter, and inlet wire diameter when by the second drawing mold core is greater than linear diameter.
The anode of pulse power generating device is connected to positive pole connecting bar, and positive pole connecting bar is connected to the first mould
Set, the first die sleeve are connected to the first drawing mold core, and the first drawing mold core and silk material are in close contact, and silk material and the second drawing mold core are tight
Contiguity touching, the second drawing mold core are connected to the second die sleeve, power cathode connecting bar, power cathode wiring are connected on the second die sleeve
Stick is connected to the cathode of pulse power generating device, constitutes the pulse current loop of electric auxiliary extraction forming.
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, with reference to the accompanying drawings and embodiments, to this
Invention is further elaborated.Specific implementation case described herein for explaining only the invention, is not used to limit
The present invention.
Electricity auxiliary extraction forming device proposed by the present invention can solve silk material and power-up in existing electric auxiliary extraction technology
Spark phenomenon between unit is serious, anode power-up unit and cathode power-up cell spacing farther out, be only applicable to drawing ground state silk material
Or the initial longer silk material of bar, be not accordant to the old routine production requirement the problems such as, and then realize the gold of various high-performance, difficult deformation
Category silk material line footpath is controllable, performance quality is excellent, successional production.
Embodiment 1:
It is elaborated with the drawing forming of TC4 alloy wire to electric auxiliary extraction forming device.
Selected TC4 alloying component are as follows:
| Al | V | Fe | C | N | O | H | Ti |
| 6.5000 | 4.2500 | 0.0400 | 0.0200 | 0.0150 | 0.1600 | 0.0018 | Bal. |
As shown in Figure 1, for a kind of structural schematic diagram of electric auxiliary extraction forming device provided in an embodiment of the present invention, including
TC4 silk material 1, die box part 2, pulse power generating device 3, transmission gear for electric motor 4, conveyer belt 5 and drum part 6；
TC4 silk material 1 passes through die box part 2, anode and the cathode difference of pulse power generating device 3 in the embodiment of the present invention
It is connected to the positive terminal stick and negative terminal stick of die box part 2, the TC4 silk material 1 after the tube reducing drawn out from die box part twines
On drum part 6, drum part 6 is connected to transmission gear for electric motor 4 by conveyer belt 5, by the rotation band movable reel of motor
The rotation of component 6, and then TC4 silk material 1 is pulled, pulling capacity is provided for it；
Pulse current is introduced into inside TC4 silk material by die box part 2 in the embodiment of the present invention, and TC4 silk material is existed
Silk, tube reducing deformation are drawn under pulse current booster action, as shown in Fig. 2, die box part includes: the first drawing mold core 2-2, the
Two drawing mold core 2-8, positive pole connecting bar 2-4, power cathode connecting bar 2-6, insulation module 2-5, the first die sleeve 2-3,
Two die sleeve 2-7 and fixed frame；Positive pole connecting bar 2-4 is connected to the first die sleeve 2-3, and the first drawing mold core 2-2 is put
It sets in the first die sleeve 2-3；The power cathode connecting bar 2-6 is connected to the second die sleeve 2-7, the second drawing mold core 2-8 placement
In the second die sleeve 2-7；The insulation module 2-5 is placed between the first die sleeve 2-3 and the second die sleeve 2-7, and uses bolt
It is fixedly connected on fixed frame；
The first drawing mold core 2-2 and the second drawing mold core 2-8 not only acts as the effect of drawing mould, and it is single to also serve as power-up
Member, the first drawing mold core 2-2 are the first power-up unit, and the second drawing mold core 2-8 is the second power-up unit；The inside of drawing mold core
Deformation occurs to 1 applied force of TC4 silk material to making TC4 silk material 1 for wire drawing hole, the tube reducing deformed area of drawing mold core and TC4 silk material 1 it
Between contact it is the closest, drawing mold core also serve as power-up unit utilize it is tight between drawing mold core and the tube reducing deformed area of TC4 silk material 1
Pulse current, is introduced directly into the plastically deforming area of TC4 silk material 1 by close seamless contact, at the same can be avoided power-up unit with
The air gap that the contact of TC4 silk material 1 is not close and formed, prevents spark phenomenon from the root.It is successively worn to drawing TC4 silk material 1
Cross the first drawing mold core and the second drawing mold core, the inside wire drawing hole of the first drawing mold core and the second drawing mold core with to drawing
TC4 silk material 1 is in close contact, and by pulling TC4 silk material 1 to travel forward, forming face is connect between TC4 silk material 1 and two power-up units
Touching, the relative motion of slidingtype, to introduce pulse current during wire drawing, using electro plasticity effect reduce material into
Resistance of deformation when row plastic deformation.
As shown in Fig. 2, the first drawing mold core 2-2 and the second drawing mold core 2-8 is fixed according to the TC4 silk material 1 of wanted drawing
The hard alloy mold core of system, used material have good electric conductivity, and hardness is high, wear resistance is strong；First draws
Draft core 2-2 and the second drawing mold core 2-8 is the internal axial cylindrical body for being provided with wire drawing hole, the Outside Dimensions of cylindrical body, such as
Perimeter, it is high be designed as needed, to match and be nested in the first die sleeve 2-3 or the second die sleeve 2-7, internal wire drawing hole
Five regions, including approach cone, lubrication zone, workspace, sizing area and outlet cone can be divided into.The size of wire drawing hole, as approach cone,
The angle and length of lubrication zone and outlet cone, the compression ratio of workspace, the length of sizing area, the TC4 obtained according to desired drawing
Silk material 1 and determine；Drawing mold core can require that disassembly replacement can be carried out according to the drawing size of TC4 silk material 1.
First drawing mold core 2-2 and the second drawing mold core 2-8 is installed in the same horizontal line, and the central axes phase of two mold cores
It is overlapped.
In the embodiment of the present invention as shown in Fig. 3 (a), the first die sleeve 2-3 is provided with cylindrical groove, bottom belt to be hollow, axial
There is a pair of annulus shell-like for extending ear slot, wherein cylindrical groove is for placing and fixing the first drawing mold core；As shown in Fig. 3 (b),
Second die sleeve 2-7 consists of two parts, and the first component is similar to the first die sleeve, is provided with cylindrical groove, bottom belt to be hollow, axial
There is a pair of annulus shell-like for extending ear slot, and the outer surface design of annulus set has screw thread, second component is provided with cylinder to be hollow, axial
The annulus shell-like of shape slot, and the inner surface design of annulus shell-like has a screw thread, the size and screw thread of the first component, respectively with second
The size and screw thread of part match, and second component can be tightly secured in the first component by thread bush in the outside of the first component
On, wherein the cylindrical groove of the first component is used to fix the second drawing mold core for placing the second drawing mold core, second component, and
And bear pulling capacity；And first die sleeve 2-3 and the second die sleeve 2-7 using electric conductivity is excellent, excellent radiation performance, hardness and strong
High material is spent to be made.
The central axis of the first die sleeve 2-3 and the second die sleeve 2-7 are mounted on same horizontal line in the embodiment of the present invention, and
First die sleeve 2-3's is staggered relatively with the bottom for extending ear slot with the second die sleeve 2-7 with the bottom for extending ear slot, extends ear
Slot is easily installed fixation.
Insulation module 2-5 is made of the insulation board of two pieces of excellent insulating properties in the embodiment of the present invention, two pieces of insulation boards point
It is not placed in upper and lower corresponding two pairs of extensions ear slot of the first die sleeve 2-3 and the second die sleeve 2-7, for completely cutting off the first die sleeve
2-3 and the second die sleeve 2-7, it is ensured that pulse current passes through to drawing TC4 silk material 1, and cooperates with ear slot is extended, and is fixedly mounted
On fixed frame.
First drawing mold core 2-2, the second drawing mold core 2-8, the first die sleeve 2-3, the second die sleeve 2-7 in the embodiment of the present invention
With the installation site of insulation module 2-5 and apart from as follows: the first drawing mold core 2-2 is placed in the first die sleeve 2-3, the second drawing
Mold core 2-3 is placed in the second die sleeve 2-7, is connected and is consolidated by insulation module 2-5 between the first die sleeve 2-3 and the second die sleeve 2-7
Dingan County's dress；First drawing mold core 2-2 and the second drawing mold core 2-8, i.e., between the first power-up unit and the second power-up unit away from
From by the first die sleeve 2-3, the second die sleeve 2-7 and insulation module 2-5 installation site and with a distance from determine, be 200mm；First drawing
The setting of the short distance of mold core 2-2 and the second drawing mold core 2-8, i.e., the low coverage between the first power-up unit and the second power-up unit
From the length of the TC4 silk material 1 acted on during electric auxiliary extraction by pulse current can be shortened, the region that pulse current is acted on
It is limited in the plastically deforming area of TC4 silk material 1, reduces unnecessary Joule heat.
In the embodiment of the present invention, positive pole connecting bar 2-4 and power cathode connecting bar 2-6 are that electric conductivity is excellent
Bolt, positive pole connecting bar 2-4 are fixed in the positive terminal stick slot of the first die sleeve 2-3, and positive pole connecting bar 2-4
It is connected with the anode of pulse power generating device；Power cathode connecting bar 2-6 is fixed on the negative of the first component of the second die sleeve 2-7
In the connecting bar slot of pole, and power cathode connecting bar 2-6 is connected with the cathode of pulse power generating device；As shown in figure 4, pulse
The pulse current that power generator generates introduces drawing by positive pole connecting bar 2-4 and power cathode connecting bar 2-6
On device, pulse current successively passes through positive pole connecting bar 2-4, the first die sleeve 2- from the anode of pulse power generating device
3, first drawing mold core 2-2, TC4 silk material 1, the second drawing mold core 2-8, the second die sleeve 2-7, power cathode connecting bar 2-6, return to
The cathode of pulse power generating device, to form the flow cycle of pulse current.
In the embodiment of the present invention, pulse power generating device 3 includes pulse power unit, control unit and host computer interaction
Unit；Man-machine interaction unit is for providing human-computer interaction interface and parameter setting information being transferred to described control unit and is connect
It receives the status information of described control unit output and is shown；Control unit is for controlling the output of pulse power unit, acquisition
The data such as voltage, electric current, temperature in drawing process, and man-machine interaction unit will be fed back to after data processing；Pulse power unit
For exporting pulse current to drawing TC4 silk material, the plasticity of rapidoprint is improved.
The critical component of drum part 6 is round turntable in the embodiment of the present invention, can adjust revolving speed and be TC4 silk material 1
Drawing adjustable pulling capacity is provided；The wire drawing of the first drawing mold core 2-2 and the second drawing mold core 2-8 in the diaphragm capsule 2
The central axes in hole and a tangent line of round turntable coincide, and the TC4 silk material 1 drawn out is wrapped in is revolved counterclockwise with setting speed
On the drum part 6 turned, drum part 6 is that TC4 silk material 1 provides adjustable, the reasonable pulling capacity in direction.
Transmission gear for electric motor 4 configures AC frequency conversion driving control system, and configures hard-tooth surface speed reducer；The motor passes
Motor in dynamic device 4 is connected to the drum part 6 by transmission belt 5, and the round turntable of drum part 6 is driven to set
Speed rotation.
By toroid load cell and its corresponding data processing unit in drawing process in the embodiment of the present invention
Pulling capacity suffered by TC4 silk material carries out real-time monitoring.
First drawing mold core 2-2 peripheral diameter is 40mm, is highly 26mm in the embodiment of the present invention, and the angle of approach cone is
60 °, workspace angle is 14 °, and sizing section length is 3.5mm, and sizing area diameter is 2.7mm, and outlet cone angle is 40 °, work
TC4 silk material is that 3mm is drawn to 2.7mm by diameter by area；Second drawing mold core 2-8 peripheral diameter is 40mm, is highly 26mm, is entered
The angle of prostomum is 60 °, and workspace angle is 14 °, and sizing section length is 3.5mm, and sizing area diameter is 2.5mm, Toe angle
Degree is 40 °, and TC4 silk material is that 2.7mm is drawn to 2.5mm by diameter by workspace.
Motor speed is set as 5m/min in the embodiment of the present invention.
Pulased power supply unit exports in the embodiment of the present invention: magnitude current density j=60~240A/mm2, current impulse is wide
Spend tp=100 μ s~100ms, the adjustable pulse current of current pulse frequency f=100~400Hz.
In the implementation case, lubricant is imported by the approach cone of the first drawing mold core and the second drawing mold core.
It can be that 3mm pulls to diameter and is from diameter by TC4 silk material using the electric auxiliary extraction forming device in the present invention
2.5mm；And compared with conventional no current auxiliary extraction, required pulling capacity is greatly reduced；And without going out in drawing process
Existing spark phenomenon, obtained silk material excellent surface quality, do not burn significantly it is excellent with scratch, performance quality.
Embodiment 2:
With Zr in the embodiment of the present invention55Cu30Al10Ni5The drawing forming of (atomic percent) amorphous alloy silk material is auxiliary to electricity
Drawing forming device is helped to elaborate.
In the embodiment of the present invention structure, connection relationship and the working principle of electric auxiliary extraction forming device with embodiment 1
It is identical.
In the present embodiment, Zr55Cu30Al10Ni5The electric auxiliary extraction forming device of (atomic percent) amorphous alloy silk material
Unlike the first embodiment: the first drawing mold core 2-2 peripheral diameter is 40mm, is highly 26mm, and the angle of approach cone is 60 °,
Workspace angle is 14 °, and sizing section length is 3.5mm, and sizing area diameter is 2mm, and outlet cone angle is 40 °, and workspace will be non-
Peritectic alloy silk material is that 2.2mm is drawn to 2mm by diameter；Second drawing mold core 2-8 peripheral diameter is 40mm, is highly 26mm, is entered
The angle of prostomum is 60 °, and workspace angle is 14 °, and sizing section length is 3.5mm, and sizing area diameter is 1.8mm, Toe angle
Degree is 40 °, and amorphous alloy silk material is that 2mm is drawn to 1.8mm by diameter by workspace.
Motor speed is set as 3m/min in the embodiment of the present invention.
Pulased power supply unit exports in the embodiment of the present invention: magnitude current density j=0~200A/mm2, current impulse is wide
Spend tp=10ms~100ms, the adjustable pulse current of current pulse frequency f=30~100Hz.
In the implementation case, lubricant is imported by the approach cone of the first drawing mold core and the second drawing mold core.
Using electric auxiliary extraction forming device of the invention, this quasi-plastic property of amorphous alloy is very poor, be difficult to deform and initially into
Silk size limited silk material can drawing deformation, obtain that line footpath, length are controllable, the excellent silk material of capability and performance.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of electricity auxiliary extraction forming device characterized by comprising die box part, pulse power generating device, reel portion
Part and transmission gear for electric motor；
The die box part includes the first drawing mold core and the second drawing mold core, the drum part include round turntable；
The central axes of the wire drawing hole of the first drawing mold core and the wire drawing hole of the second drawing mold core and the round turntable
A tangent line coincide, the silk material that when work draws out is wrapped on the round turntable rotated counterclockwise with setting speed；
The round turntable is used to provide the pulling capacity of adjustable section for silk material, and the direction of the pulling capacity and described first are drawn
The central axes of the wire drawing hole of draft core and the second drawing mold core are overlapped；
The pulse power unit is used to improve the plasticity of rapidoprint to provide pulse current to drawing silk material；
The speed rotation that the transmission gear for electric motor is used to that the round turntable to be driven to set.
2. electricity auxiliary extraction forming device as described in claim 1, which is characterized in that the die box part further include: power supply
Positive terminal stick, power cathode connecting bar, insulation module, the first die sleeve, the second die sleeve and fixed frame；
The positive pole connecting bar is connected to the first die sleeve, and the first drawing mold core is placed in the first die sleeve；It is described
Power cathode connecting bar is connected to the second die sleeve, and the second drawing mold core is placed in the second die sleeve；The insulation module is placed on
Between first die sleeve and the second die sleeve, and it is fixedly connected on fixed frame；The insulation module is used for first die sleeve
Completely cut off with second die sleeve and ensures that pulse current passes through to drawing silk material.
3. electricity auxiliary extraction forming device as claimed in claim 2, which is characterized in that the first drawing mold core and second is drawn
Draft core is arranged in the same horizontal line, and the central axes of two mold cores coincide.
4. electricity auxiliary extraction forming device as claimed in claim 2 or claim 3, which is characterized in that first die sleeve is hollow, axis
To being provided with cylindrical groove and bottom with a pair of annulus shell-like for extending ear slot, the shape of cylindrical groove and the first drawing mold core
Shape matches.
5. electricity auxiliary extraction forming device as claimed in claim 4, which is characterized in that second die sleeve includes: first
Part and second component, the second component are set in the outside of the first component and are fixed on the first component；
The structure of the first component is identical as the structure of first die sleeve；
The second component is hollow, the axial annulus shell-like for being provided with cylindrical groove, and the inner surface design of annulus shell-like has spiral shell
Line；
The size and screw thread of the first component match with the size of the second component and screw thread respectively.
6. electricity auxiliary extraction forming device as described in claim 4 or 5, which is characterized in that the central axis of first die sleeve
It is arranged on same horizontal line with the central axis of second die sleeve, and the first die sleeve is with the bottom and second for extending ear slot
Die sleeve is staggered relatively with the bottom for extending ear slot.
7. electricity auxiliary extraction forming device as claimed in any one of claims 1 to 6, which is characterized in that the first drawing mold core
The distance between second drawing mold core is by the setting position of the first die sleeve, the second die sleeve and insulation module and apart from determination.
8. such as the described in any item electric auxiliary extraction forming devices of claim 1-7, which is characterized in that the pulse power occurs
Device includes: pulse power unit, control unit and man-machine interaction unit；
The pulse power unit for provide magnitude current density be 0~3000A/mm2, current pulse width be 100 μ s~
The pulse current that 1000ms and current pulse frequency are 5~5000Hz；
Described control unit acquires voltage in drawing process, electric current, temperature data for controlling the output of pulse power unit,
And man-machine interaction unit will be fed back to after data processing；
The man-machine interaction unit for provide human-computer interaction interface and by parameter setting information be transferred to described control unit with
And it receives the status information of described control unit output and is shown.
9. such as the described in any item electric auxiliary extraction forming devices of claim 1-8, which is characterized in that the drum part also wraps
Include: connecting line, when initial drawing or ground state silk material itself are too short, silk material cannot independently be connected to the round turntable of drum part
On, the connecting line can be connected with silk material, auxiliary extraction.
10. such as the described in any item electric auxiliary extraction forming devices of claim 2-9, which is characterized in that it further include shield, institute
Shield is stated to be arranged on the fixed frame, it is retractable, for realizing protection work by isolation during electric auxiliary extraction
Make personnel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097356.4A CN109821913A (en) | 2019-01-31 | 2019-01-31 | A kind of electricity auxiliary extraction forming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097356.4A CN109821913A (en) | 2019-01-31 | 2019-01-31 | A kind of electricity auxiliary extraction forming device |
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| CN109821913A true CN109821913A (en) | 2019-05-31 |
Family
ID=66861943
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| CN201910097356.4A Pending CN109821913A (en) | 2019-01-31 | 2019-01-31 | A kind of electricity auxiliary extraction forming device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111438209A (en) * | 2020-05-07 | 2020-07-24 | 南通凌龙特钢制品有限公司 | Drawing and winding device |
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