CN205520960U - Electrical card internal cooling emery wheel and micro - lubricated grinding equipment of nano -fluids of technological coupling of static - Google Patents
Electrical card internal cooling emery wheel and micro - lubricated grinding equipment of nano -fluids of technological coupling of static Download PDFInfo
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- CN205520960U CN205520960U CN201620072083.XU CN201620072083U CN205520960U CN 205520960 U CN205520960 U CN 205520960U CN 201620072083 U CN201620072083 U CN 201620072083U CN 205520960 U CN205520960 U CN 205520960U
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Abstract
The utility model discloses an electrical card internal cooling emery wheel and micro - lubricated grinding equipment of nano -fluids of technological coupling of static, nanometer or micron order were made to the material that can produce the electrical card effect powder adds to and forms the electrical card emery wheel in the emery wheel binder, electrostatic atomization is used in cooperation simultaneously, with washing and electrostatic precipitation in the magnetism reinforcing static, the integrated grinding equipment who is one set of emery wheel internal cooling and the coupling of static technique, not only show the temperature that has reduced the grinding district, and wash emery wheel grinding surface, avoid the emery wheel to block up, can also obviously reduce the oil mist volume of surrounding environment in the grinding engineering, this equipment is showing the high pressure heater work efficiency rate of putting forward, reach the requirement of environmental protection, the utility model discloses an equipment can reduce grinding district temperature effectively, puies forward high pressure heater work efficiency rate and quality, can reduce the oil mist again and to the pollution of environment and reduce the harm to the health, not only accord with machining's requirement but also accord with energy -concerving and environment -protective requirement.
Description
Technical field
This utility model relates to grinding field, cools down, in being specially electricity card, the nano-fluid micro lubricating equipment for grinding that emery wheel couples with electrostatic technique.
Background technology
Grinding is processing technique important in machine-building.Having high energy input for removal unit volume metal in grinding process, almost all of energy converts and all concentrates on grinding area.Grinding high temperature makes wheel face abrasive particle top layer weaken, abrasion aggravation, causes the phenomenons such as abrasive particle disengaging, shortens the service life of emery wheel.The high temperature that grinding area produces simultaneously can cause various forms of workpiece hot injury, as: burn, metallurgical transformation, the possible generation softening (annealing) on secondary quenching top layer, disadvantageous top layer tension, crackle and the reduction etc. of fatigue strength, additionally the thermal expansion in grinding can cause the deformation of workpiece.Grinding productivity ratio is typically due to the negative effect of grinding temperature and is restricted.
In order to obtain higher workpiece processing quality and surface accuracy, it is necessary to reduce the temperature of grinding area.In view of the lubricant effect of Dry Grinding is the poorest, therefore research worker proposes near-dry type grinding technique, Minimal Quantity Lubrication Technology, refer to by the lubricating fluid of extremely trace with after there is the gas mixed aerosol of certain pressure, being ejected into grinding area and play a kind of Grinding Technology of cooling and lubricating effect, cooling and chip removal effect rely primarily on gases at high pressure and realize.Find that Minimal Quantity Lubrication Technology does not play enhanced heat exchange yet and significantly reduces the effect of grinding area temperature in grinding area through substantial amounts of research, however nanotechnology appear as solve this difficult problem and provide good thinking.It is known that under room temperature the heat conductivity of solid material than fluent material big several orders of magnitude, the heat conductivity of the liquid being suspended with metal, nonmetal or polymer solid particles is more much bigger than neat liquid.If adding solids in micro lubricating medium, the heat conductivity of fluid media (medium) can be dramatically increased, improving the ability of convective heat transfer, greatly make up the defect that micro lubricating cooling capacity is not enough.Additionally, nanoparticle also has the tribological properties such as special antiwear and antifriction and high bearing capacity in terms of lubrication with tribology.Nanoscale solids particle is added in micro lubricating fluid media (medium) and makes nano-fluid, i.e. nanoparticle, lubricating fluid (oil or oil water mixture) sprays into grinding area with pattern after gases at high pressure mixed aerosol, therefore nanoparticle jet micro lubricating grinding technique is arisen at the historic moment, the advantage that nanoparticle jet micro lubricating grinding not only has Minimal Quantity Lubrication Technology, and can effectively solve the problem that grinding burn, improve surface of the work integrity, it is achieved efficiently, low consumption, environmental friendliness, resource-effective low-carbon green cleaning produce.
The card refrigeration of so-called electricity be exactly under the effect of extra electric field the polarized state of material change, cause the change of entropy, and then make material produce temperature to become, reach the effect of refrigeration.Therefore, the polarized state utilizing extra electric field to change material is capable of the regulation and control of temperature, it is achieved refrigeration.Electricity card effect refrigeration operation principle is similar to Carnot cycle, including field processes such as two isentropic procedures and two.Under adiabatci condition, polar material being applied electric field, the effect of electric field makes the material internal degree of order raise, causes the reduction of material entropy, and then elevate the temperature；Under removing adiabatci condition, due to the heat exchange of material Yu environment, it is down to ambient temperature at a temperature of material, and the degree of order of material is constant, so the entropy of material is constant；When adiabatic and when removing external electric field, the material internal degree of order reduces, causes the entropy of material to increase, so that material temperature reduction；Material after cooling is treated to absorb cooler heat from contact, makes the temperature treating cooling component reduce, thus reaches the effect of refrigeration.
Through retrieving, under a kind of magnetic enhancing electric field disclosed in Patent No. ZL201310634991.4, nanoparticle jet is controlled transports micro lubricating grinding equipment, by increasing magnetic field around corona zone, and the carrying capacity of raising drop；The nozzle of high-magnitude DC electrostatic generator and magnetic field forming device it is provided with outside it；Nozzle is connected with nanoparticle liquid-supplying system, air supply system；High-magnitude DC electrostatic generator is connected with the negative pole of adjustable high voltage D. C, and the positive pole of adjustable high voltage D. C is then connected with the workpiece power-up device being used for being attached to workpiece not finished surface, thus forms the form of negative corona discharge；It it is magnetic field forming device around the corona zone of static discharge；Nano-fluid while grinding fluid sprays from the shower nozzle of nozzle and to be atomized into drop under the effect of high-magnitude DC electrostatic generator and magnetic field forming device to droplets and be admitted to grinding area.Although using electrostatic atomization mode that grinding fluid can be made uniformly to arrive grinding area, but the high voltage power supply used being used only for droplets, causes a certain degree of waste of energy, does not meets energy-conservation environmental requirement.
Through retrieval, Patent No. 201510312119.7 discloses the micro lubricating grinding attachment that a kind of nano-fluid electrostatic atomization is integrated with electricity card heat pipe, including: it is all covered with the heat pipe grinding wheel of electricity card thin-film material in both side surface, outside electricity card thin-film material, applies extra electric field；And outside is provided with the electrostatic atomization combination nozzle that the electricity card refrigeration of high-magnitude DC electrostatic generator and magnetic field forming device strengthens under electric field with magnetic；Electrostatic atomization combination nozzle is connected with nanoparticle liquid-supplying system, air supply system respectively；Nano-fluid is ejected into grinding area by carrying out electrostatic atomization at electrostatic atomization combination nozzle, absorbs grinding area heat；Electricity card thin-film material utilizes electricity card effect to absorb heat in grinding area, is dispersed by the heat of absorption by heat pipe grinding wheel, form a Carnot cycle after leaving grinding area.Having carried out integrated by nano-fluid electrostatic atomization and electricity card refrigeration with heat-pipe refrigerating technology, can absorb more grinding heat, reduce grinding temperature after reaching grinding area, the refrigeration of grinding area significantly improves.This device utilizes electricity card effect to be combined integrated a set of cooling system with heat pipe grinding wheel, although has preferable cooling effect to grinding area, but is covered by electricity card thin film and plug emery wheel pore at wheel face, have impact on overall performance during wheel grinding to a certain extent.
Through patent searching number be 201510603700.4 disclose a kind of acoustic emission and dynamometer integrated wheel topography detection clean device and method, first pass through acoustic emission and monitor wheel topography situation at linear location, measure grinding force by grinding dynamometer and reflect detection wheel topography situation, then remove the electrostatic of tamper according to point discharge principle, with nozzle, the tamper being attached in wheel face or pore is carried out by electrostatic.The acoustic emission signal produced during wheel grinding, filter through sampling and analysis of signal, set up the corresponding relation of the root-mean-square value (RMS) of acoustic emission signal and the peak value of fast Fourier transform (FFT) and wheel topography degree, it is achieved the observation measurements to wheel topography.Grinding dynamometer is measured grinding force and is also reflected detection wheel topography situation.Then the threshold value by setting between expulsion pressure and acoustic emission signal realizes washing down wheel topography thing in real time online, it is achieved the closed loop control between nozzle injection pressure and wheel topography amount.This device utilizes quiet principle of electroneutrality that surfaces of grinding wheels is carried out the cleaning of tamper, achieve the online dressing of emery wheel, but emery wheel high speed rotating, need to apply the highest voltage and could effectively neutralize the electrostatic of tamper, the utilization ratio causing electric energy to a certain extent is relatively low, wastes the energy.
Utility model content
The purpose of this utility model is contemplated to solve the problems referred to above, cool down, in providing electricity card, the nano-fluid micro lubricating equipment for grinding that emery wheel couples with electrostatic technique, nanometer made by the material that can produce electricity card effect by this equipment or micron-sized powder adds formation electricity card emery wheel in grinding wheel bond to, simultaneously with the use of electrostatic atomization, magnetic strengthens in electrostatic and cleans and electrostatic precipitation, cool down, in being integrated into a set of emery wheel, the equipment for grinding coupled with electrostatic technique, not only significantly reduce the temperature of grinding area, and wheel grinding surface is carried out, avoid wheel topography, can also substantially reduce the mist of oil amount of surrounding in grinding engineering, this equipment significantly improves working (machining) efficiency, reach the requirement of environmental protection.
In order to reach above-mentioned purpose, this utility model adopts the following technical scheme that
The nanoparticle jet micro lubricating equipment for grinding that in electricity card, cooling emery wheel couples with electrostatic technique, including workbench, the fixture being arranged over for fixing workpiece of workbench, the pressure transducer of detection grinding force it is provided with in the bottom of fixture, it is provided with the electric card grinding wheel stand for fixing electricity card emery wheel on the table, electricity card emery wheel is combined with electric card grinding wheel bond and makes by producing the material of electric card effect, electricity card emery wheel is connected with the device that can produce electric field, circumference at electricity card emery wheel is provided with the electrostatic atomization nozzle being used for lubricating and cooling down workpiece grinding area that nano-fluid is atomized by least one place, the side of electricity card emery wheel circumference is provided with the magnetic of the injection nano-fluid with electric charge and strengthens in electrostatic and washer jet, with cooling electricity card emery wheel；Pressure transducer, magnetic enhancing electrostatic is individually connected with control of grinding force system, by the control to part-structure of the control of grinding force system with washer jet, electrostatic atomization nozzle and brush, it is achieved according to the concrete condition of grinding, control the action of each mechanism；Electrostatic atomization nozzle is to start working when electricity card wheel grinding workpiece, carries out charged when nano-fluid jetting nozzle by the drop of atomization, makes what charged drop oriented to be ejected into grinding area by the effect of electrostatic field, play the effect of cooling and lubricating.
Further, the described device that can produce electric field is at least one circle conducting strip being located at electricity card emery wheel both side surface, the conducting strip of side is connected with the positive pole of the brush applying external electric field to electricity card emery wheel, and the conducting strip of opposite side is connected with the negative pole of brush, to improve the cooling capacity of electricity card emery wheel.
Further, electricity card emery wheel is ground into nanometer or micron powder by the material that can produce electric card effect and is combined with electric card grinding wheel bond and makes, the material powder volume fraction range producing electricity card effect is 1%-60%, purpose is global tissue and the structure neither affecting emery wheel, electricity card emery wheel can be made again to have good refrigerating capacity, to maintain electricity card emery wheel overall performance in grinding process, the material that can produce electricity card effect includes ferroelectric material, antiferroelectric materials and Pb-Based Relaxor Ferroelectric Materials, and the Curie temperature of this electricity card material occurs near room temperature, there is relatively large electric card effect.
Further, being provided with the mist of oil deposition shield for collecting mist of oil in the side of electricity card emery wheel, use electrostatic precipitation principle that mist of oil carries out deposition and reclaim, for ensureing that mist of oil can fully obtain charged, mist of oil precipitation equipment can use one or more.
Further, the working tips of described brush is provided with protrusion, and brush is the brush with Sn/Ag electrode, and conducting strip is conduction platinized platinum.
Further, described workbench is magnetic worktable, the side of described mist of oil deposition shield is fixed bar by connecting rod with the magnetic being fixed on magnetic worktable and is connected, connecting rod is the multi-link structure that can horizontally rotate and vertically move, opposite side is provided with the opening connected with magnetic worktable, and the top of opening is arranged the most diagonally downward by oilmist inlet to be easy to mist of oil and deposit downwards.
Further, the top of described opening is depositing electrode plate, and bottom is mist of oil charged electrode, and mist of oil charged electrode is connected with high-voltage conducting wires, and mist of oil charged electrode is rectangle, circular or oval.
Further, it is provided with groove in described fixture, the locating piece for fixing workpiece in a direction it is provided with in groove, locating piece is fixed in groove by bolt, being fixed with the pressing plate for pressing down workpiece above workpiece at fixture relative to the opposite side surface of locating piece, another direction is provided through the bolt for clamping workpiece of groove.
Further, described magnetic strengthens in electrostatic and washer jet includes the gas tube for injecting gas, gas tube is located in liquid line, the side of liquid line has inlet, the exit inside diameter of liquid line tapers into and accelerates gas-liquid mixed, it is provided with nozzle in exit, jet expansion side is provided with sprayer body, the electrode disk connected with nozzle it is provided with inside sprayer body, electrode disk is connected with high-voltage conducting wires, the end of sprayer body is fixed with magnetic field forming device, magnetic field forming device is arranged on magnetic and strengthens in electrostatic and the top of washer jet outlet, it is positioned at around corona discharge region, magnetic field forming device is Magnet, Magnet is fixed on the lower section of circular electrode dish by positioning chuck, intermediate formation field intensity, improve the carrying capacity of nano-fluid drop.
Further, the workpiece power-up device powered up to power generator it is provided with in the side of described workbench, including insulation shell, compression permanent magnet it is provided with in housing, it is provided with at the middle part of housing by spring-supported foundary weight, end in the middle part of foundary weight is through housing and arranges wire connection ring in this end, and wire connects ring and is connected with power generator.
Operation principle of the present utility model is: the mist of oil produced in grinding area substantially can be divided into 3 kinds, the first is the mist of oil with the biggest momentum, strike on depositing electrode plate after charged through mist of oil charged electrode, a portion is adsorbed, another part rebounds again, and this part occurs deposition adsorbed on the table under the effect of gravity and electric field force；The second is the mist of oil that momentum is bigger, this mist of oil is all adsorbed after mist of oil charged electrode strikes depositing electrode plate, along with being on the increase of depositing electrode leaf fat mist, mist of oil drop can go downstream along depositing electrode plate, enters in guiding gutter thus is recovered；The third is the mist of oil that momentum is the least, and before it flies away mist of oil deposition shield, its speed is kept to zero, through mist of oil charged electrode charged after, deposit on workbench under gravity and electric field force effect.
Described high-magnitude DC electrostatic generator is connected with the negative pole of adjustable high voltage D. C, and the positive pole of adjustable high voltage D. C is then connected with the workpiece power-up device being attached to workpiece not finished surface, thus forms the form of negative corona discharge；Brush power supply and magnetic are strengthened in electrostatic and the power supply of washer jet, electrostatic atomization nozzle, mist of oil precipitation equipment and high-magnitude DC electrostatic generator carries out integrated, all use adjustable high voltage D. C；It is provided with power supply signal conversion equipment on adjustable high voltage D. C, to be suitable in electricity card emery wheel and magnetic enhancing electrostatic and the use needs of washer jet simultaneously.
Described workpiece power-up device is made up of workpiece power-up device insulation shell, foundary weight, compression permanent magnet, holddown spring；Compressing permanent magnet to be arranged on workpiece power-up device insulation shell, foundary weight penetrates the middle part being arranged on workpiece power-up device insulation shell by holddown spring, and the end exposing workpiece power-up device insulation shell is then provided with wire connection ring and split pin slot.
The beneficial effects of the utility model are: this equipment is by electric card emery wheel based on electricity card effect and electrostatic application technology, including electrostatic atomization, electrostatic neutralizes and electrostatic precipitation carries out integrated, develop a kind of integrate emery wheel in the nanoparticle jet micro lubricating equipment for grinding of cold and electrostatic application technology, this equipment is possible not only to be effectively reduced grinding area temperature, improve working (machining) efficiency and quality, mist of oil can be reduced again and to the pollution of environment and reduce the harm to health, not only meet the requirement of machining but also meet the requirement of energy-conserving and environment-protective, specifically can be divided into three aspects:
1) by can produce electricity card effect material make powder add to grinding wheel bond is made electricity card emery wheel, and in forming one, cool down emery wheel, tissue and the structure of electricity card emery wheel is not only ensure that compared with heat pipe grinding wheel, and make electricity card emery wheel work relatively reliable in grinding process, reduce the in hgher efficiency of grinding area temperature.
2) by carrying out magnetic enhancement process in electrostatic high efficiency can be carried out electricity card emery wheel with washer jet, the clearance rate of tamper is greatly improved, it is achieved that the function of the online dressing of high energy efficiency, and Grinding Machining Quality and efficiency effectively improve；
3) health is caused serious threat by the mist of oil owing to producing in grinding process, and traditional oil extraction mist device is only that aerial for disperse mist of oil carries out eliminating process, effectively do not solve from source, and mist of oil is carried out deposition and reclaims by the source (grinding area) that this equipment uses the principle of electrostatic atomization and electrostatic precipitation to produce at mist of oil, wherein electrostatic atomization makes atomized drop vectored injection decrease the amount of the atomized drop in air to grinding area, the mist of oil that electrostatic precipitation makes grinding high temperature and other factors cause carried out deposition before being diffused in air and reclaims, both make the mist of oil in the air of disperse greatly reduce, reduce the mist of oil harm to health, make the course of processing more green safety.
4) equipment of the present utility model can be effectively reduced grinding area temperature, improves working (machining) efficiency and quality, can reduce again mist of oil and to the pollution of environment and reduce the harm to health, not only meet the requirement of machining but also meet the requirement of energy-conserving and environment-protective.
Accompanying drawing explanation
Cold and electrostatic application nanoparticle jet micro lubricating grinding attachment axonometric drawing in Fig. 1 emery wheel based on electricity card effect；
Fig. 2 pressure sensor monitoring axonometric drawing；
Fig. 3 work piece positioning tight apparatus structure schematic diagram；
Fig. 4 pressure sensor structure schematic diagram；
Fig. 5 mist of oil precipitation equipment axonometric drawing；
Top view 6 (a), axonometric chart 6 (b), left view 6 (c) and the axonometric drawing 6 (d) of Fig. 6 mist of oil precipitation equipment Movable clamp；
Top view 7 (a), axonometric chart 7 (b), left view 7 (c) and the axonometric drawing 7 (d) of Fig. 7 mist of oil precipitation equipment connecting rod I；
Top view 8 (a), axonometric chart 8 (b), left view 8 (c) and the axonometric drawing 8 (d) of Fig. 8 mist of oil precipitation equipment connecting rod II；
The top view 9 (a) of Fig. 9 mist of oil deposition shield, axonometric chart 9 (b), left view 9 (c) and axonometric drawing 9 (d)；
The sectional view of Figure 10 mist of oil deposition shield；
Figure 11 mist of oil charged electrode embodiment one；
Figure 12 mist of oil charged electrode embodiment two；
Figure 13 mist of oil charged electrode embodiment three；
Figure 14 mist of oil charged electrode embodiment four；
Figure 15 magnetic strengthens in electrostatic and washer jet sectional view；
Figure 16 air injection pipe is along A A direction sectional view；
With device sectional view in Figure 17 electrostatic；
With device along B B direction sectional view in Figure 18 electrostatic；
Figure 19 magnetic strengthens in electrostatic and washer jet Magnet positioning chuck top view；
Figure 20 one brush base and collective's overall structure axonometric drawing；
Figure 21 brush top view；
Figure 22 brush partial enlarged drawing；
Figure 23 a power-up device sectional view；
Figure 23 b power-up device top view；
Figure 24 Circuits System block diagram；
Figure 25 fluid path and air-channel system sketch；
Wherein, 1-magnetic worktable；2-pressure transducer；3-fixture；4-flat board；5-pressing plate；6-flat board bolt；7-cylinder pad；8-follower bolt；9-workpiece；10-magnetic fixes bar；11-Movable clamp；12-fixed knob；13-magnetic strengthens in electrostatic and washer jet；14-connecting rod I；Bolt fixed by 15-brush；16-brush base；17-connecting rod II；18-brush；19-fixes screw；20-mist of oil deposition shield；21-brush platinized platinum；22-electricity card emery wheel；23-wheel guard；24-carries coil fixing device；25-compressed air conveying coil；26-nano-fluid conveying coil；27-high-voltage conducting wires；28-electrostatic atomization nozzle；29-locating piece；30-power supply signal conversion equipment；31-power generator；32-power supply signal controls output lead；33-bolt；34-power-up device；35-control of grinding force system；36-pressure sensor signal output lead；37-guiding gutter；38-depositing electrode plate；39-mist of oil charged electrode；40-air injection pipe；41-seal washer I；42-admission chamber；43-gas-liquid separation plug；44-gas-liquid mixed chamber；45-accelerating sections；46-round rubber circle；47-circular electrode dish；48-sprayer body；49-electric magnet lead channels；50-fixes screwed hole；51-positioning chuck；52-Magnet；53-seal washer II；54-circular electrode dish wire guide；55-Fan spray head；56-positioning spiro pit；57-venthole；58-feed tube；59-mixing chamber；60-nozzle nut；61-positioning through hole；62-magnet baffle plate；63-brush base；The fixing through hole of 64-brush；65-supporter；66-conductive part；67-Sn/Ag elastic contact chip；68-sliding part；69-protrusion；70-protuberance；71-foundary weight；72-split pin slot；73-wire connects ring；74-holddown spring；75-power-up device insulation shell；76-compresses permanent magnet；77-air compressor；78-nano-fluid fluid reservoir；79-air accumulator；80-hydraulic pump；81-filter；82-Pressure gauge；83-choke valve I；84-turbine flowmeter I；85-turbine flowmeter II；86-choke valve II；87-pressure regulator valve I；88-pressure regulator valve II；89-overflow valve；90-nano-fluid collection box.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear, complete description.
Embodiment one
As shown in Figure 1, electricity card emery wheel 22 is that electricity card material is made nanometer or micron-sized powder, it is added in the bonding agent of emery wheel, the amount of the electric card material powder wherein added with the global tissue not affecting emery wheel and structure as standard in order to maintain electricity card emery wheel overall performance in grinding process；It applies extra electric field by the brush 18 with Sn/Ag electrode being connected with brush base 16；Brush 18 is connected with power supply signal conversion equipment 30 and power generator 31 by high-voltage conducting wires 27, it is provided that voltage；Brush base 16 is fixed bolt 15 by brush and is fixed on wheel guard 23, and the positive pole of its center brush 18 contacts with brush platinized platinum 21 respectively at electricity card emery wheel 22 both side surface with negative pole.Electrostatic atomization nozzle 28 and magnetic strengthen in electrostatic and washer jet 13 is connected with compressed air conveying coil 25 and nano-fluid conveying coil 26, and compressed air conveying coil 25 and nano-fluid conveying coil 26 are fixed by conveying coil fixing device 24；Electrostatic atomization nozzle 28 and magnetic enhancing electrostatic are connected with high-voltage conducting wires 27 respectively with device in the electrostatic atomization apparatus in washer jet 13 and electrostatic, then are connected with power supply signal conversion equipment 30 and power generator 31.
The frequency calculation method of electricity card emery wheel required pulse power supply is as follows:
Emery wheel feed rate is v, and Workpiece length is l1, a length of l of idle stroke2, then total length l=l1+l2, required time T=l/v, then frequency f=1/T needed for the pulse power.
As a example by experiment parameter: emery wheel feed rate is as v=50mm/s, and length l=50mm, therefore the cycle of wheel grinding workpiece is T=l/v=1s, then f=1Hz.Therefore, just from the point of view of the frequency of electricity card emery wheel required pulse power supply, existing high-voltage pulse power source fully achieves the use requirement of electricity card emery wheel.
Pressure transducer 2 is fixed on magnetic worktable 1, as shown in Figure 2 to 4, fixture 3 is fixed on pressure transducer 2 by flat board bolt 6, workpiece 9 is fixed by fixture 3, with the movable direction of locating piece 29 as Y direction, in horizontal plane, the direction vertical with Y direction is X-direction, and the X-direction of workpiece 9 uses two bolts 33 to be clamped；In the Y-direction of workpiece 9, locating piece 29 one side and workpiece 9 contacts side surfaces, one side contacts with two bolts 33, and screwed in place bolt makes locating piece 29 clamp in the X-direction of workpiece 9, locating piece adjustable position, it is achieved different workpieces 9 can realize clamping.Workpiece 9 uses three pressing plates 5 to clamp in z-direction, three pressing plates 5 constitute self-regulation pressing plate by flat board 4, cylinder pad 7 and follower bolt 8, when three sizes of workpiece 9 length, width and height change, can be adjustable by bolt 33 and three pressing plate 5 realization equipments, meet the change in size requirement of workpiece 9；Pressure transducer 2 is connected with control of grinding force system 35 by 36 pressure sensor signal output leads, control of grinding force system 35 controls output lead 32 by power supply signal and controls power supply signal conversion equipment 30, strengthens in electrostatic for brush 18, magnetic and washer jet 13 and electrostatic atomization nozzle 28 provide voltage.
Mist of oil precipitation equipment as shown in Figure 5 is fixed bar 10, Movable clamp 11, fixed knob 12, connecting rod I 14, connecting rod II 17, fixing screw 19 and mist of oil deposition shield 20 by magnetic and is formed；The structure of its vitals is as shown in Fig. 6,7,8 and 9, and respectively Movable clamp 11, connecting rod I 14, connecting rod II 17, mist of oil deposition shield 20, the structure of mist of oil deposition shield 20 is shown in Fig. 6～Fig. 9；Magnetic is fixed bar 10 and is fixed on magnetic worktable 1, and connecting rod I 14 is fixed bar 10 by Movable clamp 11 with magnetic and is connected, and connecting rod II 17 is connected with connecting rod I 14, and mist of oil deposition shield 20 is connected with connecting rod II 17；The upper-lower position of connecting rod I 14, rotational angle can be adjusted by movable clamp 11, fastened by fixed knob 12 after having regulated；Connecting rod II 17 can freely regulate rotational angle, after fastened by fixed knob 12；Rotational angle after mist of oil deposition shield 20 regulation is fastened by fixing screw 19；Connect hinge by each and can regulate angle and the upper-lower position of mist of oil deposition shield 20, to reach the best charged effect of mist of oil.
Figure 10 is the sectional view of mist of oil deposition shield 20, which is provided with depositing electrode plate 38 and connects positive pole the ground connection of power supply, and depositing electrode plate 38 slant setting, to make the mist of oil of absorption flow in guiding gutter 37 smoothly along inclined ramp under gravity, conveniently recycles.Its operation principle is: the mist of oil produced in grinding area substantially can be divided into 3 kinds, the first is the mist of oil with the biggest momentum, strike on depositing electrode plate 38 after charged through mist of oil charged electrode 39, a portion is adsorbed, another part rebounds again, and this part occurs deposition to be attracted on magnetic worktable 1 under the effect of gravity and electric field force；The second is the mist of oil that momentum is bigger, this mist of oil is all adsorbed after mist of oil charged electrode 39 strikes depositing electrode plate 38, along with being on the increase of depositing electrode plate 38 mist of oil, mist of oil drop can go downstream along depositing electrode plate, enters in guiding gutter 37 thus is recovered；The third is the mist of oil that momentum is the least, and before it flies away mist of oil deposition shield 20, its speed is kept to zero, through mist of oil charged electrode 39 charged after, deposit on magnetic worktable 1 under gravity and electric field force effect.
Figure 11 is the embodiment of mist of oil charged electrode 39, generally rectangle, inside has many strip electrodes, and as shown in Figure 10, mist of oil charged electrode 39 is fixed in mist of oil deposition shield 20 and is connected with high-voltage conducting wires 27, and high-voltage conducting wires 27 provides charged voltage for mist of oil.
Figure 15 is that magnetic strengthens in electrostatic and washer jet sectional view, Figure 16 to Figure 19 is that magnetic strengthens in electrostatic and washer jet part-structure schematic diagram, magnetic enhancing electrostatic is mainly made up of four parts with washer jet 13, mixing chamber 59, air injection pipe 40, feed tube 58 and sprayer body 48.Wherein, air injection pipe 40 is connected to compressed air conveying coil 25, is connected with mixing chamber 59 by seal washer I 41, and compressed air is in venthole 57 enters into accelerating sections 45；Mixing chamber 59 left end is tapped, and air injection pipe 40 and mixing chamber 59 are fixed by nozzle nut 60；Feed tube 58 is connected to nano-fluid conveying coil 26, is connected with mixing chamber 59 by screw thread.Gas-liquid separation plug 43 is by gas-liquid mixed chamber 44 and admission chamber 42, and accelerating sections 45 is designed as pyramidal structure and reduces the flowing space of gas and liquid, thus increases their pressure and flow velocity, and mixing liquid is sprayed by fan nozzle 55 after accelerating sections 45.Positioning spiro pit 56 can make to position with washer jet 13 in magnetic enhancing electrostatic；Sprayer body 48 is connected with mixing chamber 59 by screw thread.In order to better seal magnetic strengthens in electrostatic and washer jet 13, respectively at air injection pipe 40 and mixing chamber 59, between mixing chamber 59 and sprayer body 48, there are seal washer I 41 and seal washer II 53；Being formed with device and magnetic field forming device by electrostatic in sprayer body 48, be wherein made up of round rubber circle 46 and circular electrode dish 47 with device in electrostatic, circular electrode dish 47 is connected with high-voltage conducting wires 27 by circular electrode dish wire guide 54；Magnetic field forming device is made up of positioning chuck 51 and Magnet 52, and Magnet 52 is positioned by positioning chuck 51, and positioning chuck 51 is fixed by bolt by positioning through hole 61 and fixing screwed hole 50；Being provided with magnet baffle plate 62 on positioning chuck 51 for limiting Magnet, as shown in figure 19, positioning chuck 51 is fixed with sprayer body 48 by positioning through hole 61；Described Magnet 52 can be that permanent magnet can also be for electric magnet, if its wire of electric magnet picks out via electric magnet lead channels 49.As shown in fig. 1, magnetic strengthens in electrostatic and washer jet 13 is individually positioned in the both sides of electricity card emery wheel 22, during grinding work piece 9, the abrasive dust being blocked in electricity card emery wheel 22 grinding skin cannot determine it is with which kind of electric charge, therefore the first embodiment is any side being strengthened by magnetic and being placed on electricity card emery wheel in electrostatic with washer jet 13, electrostatic connects positive electricity or negative electricity (according to actual needs) with device, it is therefore an objective to for electric charge contrary with tamper polarity of electrode on nano-fluid lotus；The second embodiment is the both sides being strengthened by two magnetic and being individually positioned in electricity card emery wheel 22 in electrostatic with washer jet 13, one of them connects positive electricity, another one connects negative electricity, purpose is no matter tamper is with which kind of electric charge, two magnetic strengthen in electrostatic can make the electric charge of tamper be neutralized with washer jet 13, thus be more prone to rinse out tamper, play the effect of dressing emery wheel.
Such as Figure 16, air injection pipe 40 is provided with plurality of passages from internal gas passageways to outside, has expanded the outlet of gas, accelerates the mixing of liquid and gas.Figure 17 and Figure 18 is in electrostatic and device sectional view, illustrates round rubber circle 46 and the structure of circular electrode dish 47, and circular electrode dish 47 includes a plurality of relative electrode.
Figure 20 to Figure 22 is brush 18 structure chart, and brush includes brush base 63, and brush is fixing with through hole 64, supporter 65, conductive part 66, Sn/Ag elastic contact chip 67, sliding part 68, protrusion 69, protuberance 70；Wherein protrusion 68 and protuberance 70 constitute sliding part 68.
Figure 23 a, 23b are workpiece power-up device sectional view and top view, and including foundary weight 71, split pin slot 72, wire connects ring 73, holddown spring 74, workpiece power-up device insulation shell 75, compresses permanent magnet 76.
As shown in figure 24, high-voltage DC power supply 14 is made up of alternating current power supply input block, direct-flow voltage regulation unit V1, direct-flow voltage regulation unit V2, self-excited vibration circuit, power amplifier, high-frequency impulse booster, voltage doubling rectifing circuit and constant current automatic control circuit.
Figure 25 is fluid path and air-channel system sketch, including air compressor 77, nano-fluid fluid reservoir 78, air accumulator 79, hydraulic pump 80, filter 81, Pressure gauge 82, choke valve I 83, turbine flowmeter I 84, turbine flowmeter II 85, choke valve II 86, pressure regulator valve I 87, pressure regulator valve II 88, overflow valve 89, nano-fluid collection box 90.
Specific works process of the present utility model is as follows:
When electricity card emery wheel 22 non-grinding work piece, i.e. by brush 18, electricity card emery wheel 22 is applied electric field during cut process, owing to electricity card emery wheel containing electricity card material, applying electric field makes the temperature of electricity card material raise, and then make the temperature of emery wheel raise, at this moment start working with washer jet 13 during magnetic strengthens electrostatic, on the one hand nano-fluid is ejected into the bulk temperature of electricity card emery wheel 22 grinding skin reduction electricity card emery wheel 22, on the other hand due in grinding process abrasive particle grinding work piece 9 abrasive particle can be made with electrostatic charge, and magnetic strengthens in electrostatic and washer jet 13 can produce substantial amounts of electronics in corona zone, free electronics is attached on droplet, drop is carried out charged, the electric charge contrary with tamper polarity of electrode on band；Being ejected on wheel face by shower nozzle, high pressure nano fluid can destroy tamper mechanical adhesion on emery wheel, and charged droplet can neutralize the electrostatic charge of tamper, makes tamper wash from emery wheel.When electricity card emery wheel 22 starts grinding work piece 9, it is arranged on the pressure transducer 2 below workpiece and collects the signal of grinding force, and be passed in control of grinding force system 35 process, control of grinding force system 35 controls power supply signal conversion equipment 30 according to result to be made to quit work with washer jet 13 in magnetic enhancing electrostatic, and make electrostatic atomization nozzle 28 start working, remove the voltage of brush 18 simultaneously；Electrostatic atomization nozzle 28 is by simultaneously charged to atomized liquid for nano-fluid atomization so that it is uniformly arrives grinding area under electric field action and plays lubrication and the effect of cooling；Additionally, owing to grinding process removing electric field, the temperature of electricity card emery wheel 22 reduces, less than ambient temperature, its thermal capacity is greatly improved, and according to heat transfer principle, first the grinding heat produced during grinding work piece 9 is delivered in electricity card emery wheel 22, thus make the grinding heat being passed in workpiece 9 be substantially reduced, effectively avoid the burn of workpiece 9.Simultaneously, nano-fluid is ejected into grinding area and the factor such as secondary-atomizing and grinding high temperature can be occurred to make to be suspended with substantial amounts of mist of oil in surrounding, therefore mist of oil precipitation equipment is used to carry out charged to mist of oil, the surrounding of the mist of oil charged electrode 39 being arranged on mist of oil deposition shield 20 can form corona zone, the mist of oil being diffused into around mist of oil deposition shield 20 is carried out charged, mist of oil droplet orientated deposition under the effect of electrostatic field after charged, makes the mist of oil amount being diffused in air be substantially reduced.After electricity card emery wheel 22 cuts out workpiece 9, pressure transducer 2 detects switching out signal, in incoming control of grinding force system 35, control of grinding force system 35 and then control power supply signal conversion equipment 30 make electrostatic atomization nozzle 28 quit work, and make magnetic strengthen in electrostatic and start working with washer jet 13, and electricity card emery wheel 22 is applied electric field, now electricity card emery wheel 22 is owing to absorbing the grinding heat produced in grinding area, himself temperature is higher than temperature during cut process, magnetic strengthens in electrostatic and washer jet 13 carries out cooling to electricity card emery wheel 22 and makes it be reduced to ambient temperature, and it is carried out dressing, start next grinding process afterwards.
Embodiment two
The present embodiment from the difference of embodiment one is: the structure of mist of oil charged electrode is different.
Figure 12 is the embodiment of mist of oil charged electrode 39, generally circular, is inside evenly equipped with many strip electrodes.
Embodiment three
The present embodiment from the difference of embodiment one is: the structure of mist of oil charged electrode is different.
Figure 13 is the embodiment of mist of oil charged electrode 39, generally oval, is inside evenly equipped with many strip electrodes.
Embodiment four
The present embodiment from the difference of embodiment one is: the structure of mist of oil charged electrode is different.
Figure 14 is the embodiment of mist of oil charged electrode 39, generally rectangle, inside has an electrode in undaform.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. the nano-fluid micro lubricating equipment for grinding that in electricity card, cooling emery wheel couples with electrostatic technique, it is characterized in that, including workbench, the fixture being arranged over for fixing workpiece of workbench, the pressure transducer of detection grinding force it is provided with in the bottom of fixture, it is provided with the electric card grinding wheel stand for fixing electricity card emery wheel on the table, electricity card emery wheel is combined with electric card grinding wheel bond and makes by producing the material of electric card effect, electricity card emery wheel is connected with the device that can produce electric field, circumference at electricity card emery wheel is provided with the electrostatic atomization nozzle being used for lubricating and cooling down workpiece grinding area that nano-fluid is atomized by least one place, the side of electricity card emery wheel circumference is provided with the magnetic of the injection nano-fluid with electric charge and strengthens in electrostatic and washer jet；Pressure transducer, magnetic enhancing electrostatic is individually connected with control of grinding force system with washer jet, electrostatic atomization nozzle and brush.
2. the nano-fluid micro lubricating equipment for grinding that in electricity card as claimed in claim 1, cooling emery wheel couples with electrostatic technique, it is characterized in that, the described device that can produce electric field is at least one circle conducting strip being located at electricity card emery wheel both side surface, the conducting strip of side is connected with the positive pole of the brush applying external electric field to electricity card emery wheel, the conducting strip of opposite side is connected with the negative pole of brush, to improve the cooling capacity of electricity card emery wheel.
3. the nano-fluid micro lubricating equipment for grinding that in electricity card as claimed in claim 1 or 2, cooling emery wheel couples with electrostatic technique, it is characterized in that, electricity card emery wheel is ground into nanometer or micron powder by the material that can produce electric card effect and is combined with electric card grinding wheel bond and makes.
4. the nano-fluid micro lubricating equipment for grinding that in electricity card as claimed in claim 1, cooling emery wheel couples with electrostatic technique, it is characterised in that being provided with the mist of oil deposition shield for collecting mist of oil in the side of electricity card emery wheel, the working tips of described brush is provided with protrusion.
5. the nano-fluid micro lubricating equipment for grinding that in electricity card as claimed in claim 4, cooling emery wheel couples with electrostatic technique, it is characterized in that, described workbench is magnetic worktable, the side of described mist of oil deposition shield is fixed bar by connecting rod with the magnetic being fixed on magnetic worktable and is connected, connecting rod is the multi-link structure that can horizontally rotate and vertically move, and opposite side is provided with the opening connected with magnetic worktable.
6. the nano-fluid micro lubricating equipment for grinding that in electricity card as claimed in claim 5, cooling emery wheel couples with electrostatic technique, it is characterized in that, the top of described opening is depositing electrode plate, bottom is mist of oil charged electrode, mist of oil charged electrode is connected with high-voltage conducting wires, and mist of oil charged electrode is rectangle, circular or oval.
7. the nano-fluid micro lubricating equipment for grinding that in electricity card as claimed in claim 1, cooling emery wheel couples with electrostatic technique, it is characterized in that, it is provided with groove in described fixture, the locating piece for fixing workpiece in a direction it is provided with in groove, locating piece is fixed in groove by bolt, being fixed with the pressing plate for pressing down workpiece above workpiece at fixture relative to the opposite side surface of locating piece, another direction is provided through the bolt for clamping workpiece of groove.
8. the nano-fluid micro lubricating equipment for grinding that in electricity card as claimed in claim 1, cooling emery wheel couples with electrostatic technique, it is characterized in that, described magnetic strengthens in electrostatic and washer jet includes the gas tube for injecting gas, gas tube is located in liquid line, the side of liquid line has inlet, the exit inside diameter of liquid line tapers into and accelerates gas-liquid mixed, it is provided with nozzle in exit, jet expansion side is provided with sprayer body, the electrode disk connected with nozzle it is provided with inside sprayer body, electrode disk is connected with high-voltage conducting wires, and the end of sprayer body is fixed with magnetic field forming device.
9. the nano-fluid micro lubricating equipment for grinding that in electricity card as claimed in claim 1, cooling emery wheel couples with electrostatic technique, it is characterized in that, the workpiece power-up device powered up to power generator it is provided with in the side of described workbench, including insulation shell, compression permanent magnet it is provided with in housing, being provided with at the middle part of housing by spring-supported foundary weight, the end in the middle part of foundary weight is through housing and arranges wire connection ring in this end, and wire connects ring and is connected with power generator.
10. the nano-fluid micro lubricating equipment for grinding that in electricity card as claimed in claim 5, cooling emery wheel couples with electrostatic technique, it is characterised in that the top of described opening is arranged the most diagonally downward by oilmist inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620072083.XU CN205520960U (en) | 2016-01-25 | 2016-01-25 | Electrical card internal cooling emery wheel and micro - lubricated grinding equipment of nano -fluids of technological coupling of static |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620072083.XU CN205520960U (en) | 2016-01-25 | 2016-01-25 | Electrical card internal cooling emery wheel and micro - lubricated grinding equipment of nano -fluids of technological coupling of static |
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| CN205520960U true CN205520960U (en) | 2016-08-31 |
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| CN201620072083.XU Expired - Fee Related CN205520960U (en) | 2016-01-25 | 2016-01-25 | Electrical card internal cooling emery wheel and micro - lubricated grinding equipment of nano -fluids of technological coupling of static |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522487A (en) * | 2016-01-25 | 2016-04-27 | 青岛理工大学 | Nano-fluid minimal quantity lubrication grinding equipment coupled with electrocaloric internal cooling grinding wheel and electrostatic technology and use method thereof |
| CN109986405A (en) * | 2019-04-11 | 2019-07-09 | 浙江工业大学 | The gas-liquid remittance stream and conveying device of electrostatic micro lubricating |
| CN111998571A (en) * | 2020-09-08 | 2020-11-27 | 南京理工大学 | Heat abstractor based on electro-magnet removes electricity card refrigeration device |
-
2016
- 2016-01-25 CN CN201620072083.XU patent/CN205520960U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522487A (en) * | 2016-01-25 | 2016-04-27 | 青岛理工大学 | Nano-fluid minimal quantity lubrication grinding equipment coupled with electrocaloric internal cooling grinding wheel and electrostatic technology and use method thereof |
| CN109986405A (en) * | 2019-04-11 | 2019-07-09 | 浙江工业大学 | The gas-liquid remittance stream and conveying device of electrostatic micro lubricating |
| CN109986405B (en) * | 2019-04-11 | 2024-03-15 | 浙江工业大学 | Gas-liquid-electricity converging and conveying device for electrostatic micro-lubrication |
| CN111998571A (en) * | 2020-09-08 | 2020-11-27 | 南京理工大学 | Heat abstractor based on electro-magnet removes electricity card refrigeration device |
| CN111998571B (en) * | 2020-09-08 | 2021-12-10 | 南京理工大学 | Heat abstractor based on electro-magnet removes electricity card refrigeration device |
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