CN206748079U - Water at low temperature mist cooling for cut lubricates supply system - Google Patents

Abstract

The utility model discloses a kind of water at low temperature mist cooling for cut to lubricate supply system, the inner chamber top of spray chamber is provided with venturi atomizer, the air inlet of venturi atomizer is connected to the port of export of gas tank by the first appendix, eddy current atomization nozzle includes vortex tube and oil-water-gas hybrid nozzle, vortex tube is connected to the port of export of gas tank by the second appendix, second appendix is provided with compression refigerating machine, connected between oil-water-gas hybrid nozzle and water tank by water pipe, connected between oil-water-gas hybrid nozzle and spray chamber by mist of oil delivery pipe, cold wind by compression refigerating machine refrigeration and vortex tube refrigeration mixes with the mist of oil from spray chamber and the water from water tank in oil-water-gas hybrid nozzle.Both advantages of low-temperature cold wind, combined mist are combined by the system, cutter can be made in difficult-to-machine materials such as machining titanium alloy, high temperature alloy, aviation composites, cutting temperature is set to be reduced rapidly, process is more efficient, and cutter life is extended.

Description

Water at low temperature mist cooling for cut lubricates supply system

Technical field

The high-speed and high-efficiency Green Cutting Technologies field in machining is the utility model is related to, more particularly to a kind of low temperature Water smoke mist of oil cooling for cut lubricates supply system.

Background technology

High-speed cutting is a kind of to have been widely used for aviation, mould, the high-performance technology of automobile and other industries.Tradition Cutting is a large amount of to have become important pollution of the mechanical processing industry to environment using cutting fluid, and has triggered various negative effects Should.Discarded cutting fluid can pollute soil and air, and cutting fluid is harmful to human body, can trigger respectively after sucking human body Kind disease, and the use cost of cutting fluid is also very high, there is certain corrosivity to lathe during use.Cutting fluid is oozed The power of processing district ability is arrived thoroughly, is the key for weighing lubrication, in conventional processes, the revolution at a high speed of machine tool chief axis Huge centrifugal force, high velocity stream field flow are produced, most cutting fluid is difficult to enter cutting zone under the tradition cast type of cooling, It is difficult to realize machining area effective cooling；Especially in the difficult processing such as machining titanium alloy, high temperature alloy, aviation composite During material, due to processing when temperature it is higher than general material temperature, so traditional cooling and lubricating system can not be effectively to it Cooled, so as to cause cutter life quickly to reduce, the problems such as workpiece quality is bad.Therefore, new Green Machining is studied Technology is to promote the important step of green technology development, is the inevitable requirement for realizing machine-building sustainable development.

Traditional Minimal Quantity Lubrication Technology, because the temperature in cutting region is very high, micro cutting oil is easy at high temperature The effect of lubrication will be lost, does not have the effect to cool well, has had a strong impact on cutter life and the quality of processing.Pass System mist of oil water smoke combined mist technology, although fine water droplets particle can absorb substantial amounts of heat, phase in atomization process Than heat caused in process, the processing effect of combined mist technology still not enough significantly, particularly closes in processing titanium During the difficult-to-machine materials such as gold, high temperature alloy, aviation composite, the temperature of cutting can be higher, life-span of the cutting temperature to cutter Influence more notable.

Low-temperature cold wind oil on water technology is a kind of lubricating system of novel metal processing, i.e. standard is also in half dry type cutting DRY CUTTING, refer to after being mixed after compressed gas is freezed with extremely micro mist of oil water smoke, form the vaporific of micron level Particle, cutting region is ejected at a high speed, a kind of cutting that effectively lubricating cooling is carried out to the working position between cutter and workpiece adds Work method.Low-temperature cold wind oil on water technology is cooled by using cold wind, water smoke, and water smoke connects with machining area It can occur to vaporize phase transformation and become vapor when tactile, absorb substantial amounts of heat, coordinate vortex tube and two-stage compression refrigeration to compression The cold wind that air is made, make cooling-down effect more obvious.The usage amount of cold wind can also be reduced simultaneously, reduce vortex tube hot gas Discharge, reduce noise；Meanwhile be lubricated by mist of oil, the friction between cutter and workpiece, chip is reduced, and improve The life-span of cutter and the crudy of workpiece etc..

Vortex tube is a kind of energy separation device simple in construction.Compressed gas expands in nozzle during work, then with Very high speed tangentially enters vortex tube.When air-flow rotates at a high speed in vortex tube, it is separated into after vortex converts The unequal two parts air-flow of stagnation temperature, the gas flow temperature in centre is low, and the gas flow temperature in outer layer position is high, adjusts Hot and cold stream ratio is saved, optimal refrigeration effect can be obtained.

Low-temperature cold wind oil on water technology, which can play, suppresses the rise of cutting region temperature, reduces cutter and workpiece, chip Friction between cutter, and effectively can discharge chip in time, prevent adhesion and improve workpiece processing quality Effect.It is few using lubricating fluid, but the improvement to processing effect is but very notable, again will not be dirty while work efficiency is improved Contaminate environment.

Low-temperature cold wind oil on water technology uses outside cooling and lubricating mode：Outside cooling and lubricating mode operation principle phase To relatively simple, the mist of oil of atomization is imported into eddy current atomization jet hole with water first and mixed with cryogenic gas, recycles high pressure low temperature The millimicro meter level aerosol formed after atomization is constantly ejected into cutting point by gas by nozzle.Processed in addition in high-speed machine tool In, machine tool chief axis centrifugal force larger produced by rotating at a high speed can make mist of oil hardly enter cutting region with water smoke, it is therefore desirable to more Big pressure overcomes the influence of centrifugal force, can just mist of oil is smoothly reached cutting region.

Low-temperature cold wind oil on water technology makes full use of the lubrication property of lubricant, and low-temperature cold wind to be evaporated with water smoke Cooling characteristic, cutting region temperature can be reduced rapidly in high-speed cutting difficult-to-machine material, make the crudy of workpiece more preferable.It is logical Cross sub-zero machining combined with combined mist technology be now machining titanium alloy, high temperature alloy, aviation composite etc. it is difficult plus During work material, one of maximally efficient cooling and lubricating mode.

Utility model content

In order to overcome shortcoming and defect present in prior art, the purpose of this utility model is to provide a kind of water at low temperature Mist cooling for cut lubricates supply system, can produce ultralow temperature cold wind, micron order mist of oil and water smoke, pass through the height of outside input Body of calming the anger is ejected into machining region after refrigeration, and gases at high pressure can ensure that mist of oil and water smoke can overcome the high rotating speed of cutter Centrifugal force and the influence in flow field, smoothly up to processing region, the system carries compression refigerating machine refrigeration and vortex tube refrigeration, right Compressed air carries out multiple cooling, substantially reduces the cutting temperature in tool sharpening.

The purpose of this utility model is achieved through the following technical solutions：

The utility model provides a kind of water at low temperature mist cooling for cut lubrication supply system, including：

Air boost pump and gas tank, the arrival end of the air boost pump are connected with compressed air source, the air boost pump The port of export is connected with the gas tank, and the air boost pump is stored into after the gas of compressed air source is pressurized in the gas tank；

Water tank, the water tank is built with water；

Spray chamber, for the spray chamber built with cutting oil, the inner chamber top of the spray chamber is provided with venturi atomizer, this article Atomizer has air inlet, inlet port and jet exit in mound, and the air inlet of the venturi atomizer passes through the first gas transmission Pipe is connected to the port of export of the gas tank, and the inlet port of the venturi atomizer is connected to the spray chamber by fluid delivery pipe Bottom；

Eddy current atomization nozzle, the eddy current atomization nozzle include vortex tube and oil-water-gas hybrid nozzle, and the vortex tube passes through Two appendixs are connected to the port of export of the gas tank, and second appendix is provided with compression refigerating machine, the oil-water-gas hybrid nozzle with Connected between the water tank by water pipe, the water pipe is provided with water pump, passes through oil between the oil-water-gas hybrid nozzle and the spray chamber Mist delivery pipe connects, and by compression refigerating machine refrigeration and the cold wind of the vortex tube refrigeration and the mist of oil from the spray chamber and comes Mixed from the water of the water tank in the oil-water-gas hybrid nozzle.

Further, the oil-water-gas hybrid nozzle includes oil mixing with water Venturi tube, outer layer delivery pipe and internal layer delivery pipe, The oil mixing with water Venturi tube has oilmist inlet, water sucking mouth and jet exit, and the oilmist inlet is connected with the mist of oil delivery pipe, The water sucking mouth is connected with the water pipe, and the jet exit connects with the outer layer delivery pipe, and the internal layer delivery pipe is cold with the vortex tube Wind end connects, the internal layer delivery pipe transporting cold wind, and outer layer delivery pipe conveying mist of oil and water smoke, the internal layer delivery pipe convey cold Wind and the mist of oil of outer layer delivery pipe conveying mix with jet hole of the water smoke in the oil-water-gas hybrid nozzle front end.

Further, connected between the internal layer delivery pipe and the cold wind end of the vortex tube by being incubated delivery pipe.

Further, the water tank is connected to the arrival end of the air boost pump by the 3rd appendix.

Further, the 3rd appendix is provided with pressure-regulating valve.

Further, the air boost pump and the gas tank are connected in air inlet pipe, and the inlet end of the air inlet pipe and compression are empty Source of the gas connects, and the system also includes being separately positioned on the air inlet pipe, first appendix, second appendix, the 3rd gas transmission Multiple magnetic valves on pipe and the water pipe.

Further, the fluid delivery pipe is provided with flow control valve.

Further, the system also includes the bypass pipe being arranged in parallel with the air inlet pipe, one end of the bypass pipe and the sky The arrival end connection of gas booster pump, the other end of the bypass pipe are connected with the gas tank, and the bypass pipe is provided with check valve.

Further, the compression refigerating machine is the two-stage compression refrigeration machine with two level refrigeration.

Further, second appendix is insulation conveying tracheae.

The beneficial effects of the utility model are：Solve, cooling and lubricating effect high using cost in the processing of traditional cutting fluid Difference, hardly possible recovery, pollute working environment and the problems such as ecological environment；Both advantages of low-temperature cold wind, combined mist are carried out simultaneously With reference to reaching best lubrication effect.The system can produce the mist of oil and water smoke of high speed, overcome in High-speed machining and produced Raw centrifugal force, mist of oil and water fog particle is set preferably to penetrate into cutting region.With the use of sub-cooled gas, cutter can be made In difficult-to-machine materials such as machining titanium alloy, high temperature alloy, aviation composites, cutting temperature is reduced rapidly, process Process is more efficient, and cutter life is extended.

Brief description of the drawings

Fig. 1 is the structural representation of water at low temperature mist cooling for cut lubrication supply system in the utility model first embodiment Figure.

Fig. 2 is the partial structural diagram of venturi atomizer in Fig. 1.

Fig. 3 is the workflow schematic diagram of compression refigerating machine in Fig. 1.

Fig. 4 is the structural representation of eddy current atomization nozzle in Fig. 1.

Fig. 5 is the structural representation of water at low temperature mist cooling for cut lubrication supply system in the utility model second embodiment Figure.

In figure：Gas conveying switch 1；Filter 2,6；Magnetic valve 3,7,13,14,16；Air boost pump 4；Gas tank 5；Pressure Force regulating valve 8；Mist of oil 9；Spray chamber 10；Cutting oil 101；Dividing plate 102；Compression refigerating machine 11；Water tank 12；Water 121；Check valve 15；Water pump 17；Venturi atomizer 18；Air inlet 181；Inlet port 182；Jet exit 183；Pneumatic ball valve 19；It is vortexed mist Change nozzle 20；Vortex tube 21；Oil-water-gas hybrid nozzle 22；It is incubated delivery pipe 23；Water mixes Venturi tube 220；Oilmist inlet 221；Water sucking mouth 222；Jet exit 223；Outer layer delivery pipe 225；Internal layer delivery pipe 226；Air inlet pipe 30；Appendix 31,32, 33；Fluid delivery pipe 35；Water pipe 36；Mist of oil delivery pipe 37；Flow control valve 38；Bypass pipe 39.

Embodiment

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but is not this reality This is confined to new practical range.

[first embodiment]

As shown in Figure 1, Figure 2, Figure 4 shows, the water at low temperature mist cooling for cut lubrication that the utility model first embodiment provides Supply system, suitable for providing cooling and lubricating for the machining of difficult-to-machine material, the system includes：

Air boost pump 4 and gas tank 5, the arrival end of air boost pump 4 are connected with compressed air source, air boost pump 4 The port of export is connected with gas tank 5, and air boost pump 4 is stored into after the gas of compressed air source is pressurized in gas tank 5；

Water tank 12, water tank 12 is built with water 121；

Spray chamber 10, for spray chamber 10 built with cutting oil 101, the inner chamber top of spray chamber 10 is provided with venturi atomizer 18, venturi atomizer 18 has air inlet 181, inlet port 182 and jet exit 183, and venturi atomizer 18 enters Gas port 181 is connected to the port of export of gas tank 5 by the first appendix 31, and the inlet port 182 of venturi atomizer 18 passes through oil Liquid delivery pipe 35 is connected to the bottom of spray chamber 10；

Eddy current atomization nozzle 20, eddy current atomization nozzle 20 include vortex tube 21 and oil-water-gas hybrid nozzle 22, vortex tube 21 The port of export of gas tank 5 is connected to by the second appendix 32, the second appendix 32 is provided with compression refigerating machine 11, oil-water-gas mixing Connected between shower nozzle 22 and water tank 12 by water pipe 36, water pipe 36 is provided with water pump 17, oil-water-gas hybrid nozzle 22 and spray chamber Connected between 10 by mist of oil delivery pipe 37, the cold wind to freeze by the refrigeration of compression refigerating machine 11 and vortex tube 21 is with coming from atomization The mist of oil 9 of room 10 and water 121 from water tank 12 mix in oil-water-gas hybrid nozzle 22.

Further, vortex tube 21 has cold air inlet 210, cold wind end 211 and hot gas end 212, cold air inlet 210 and Two appendixs 32 connect.

Further, oil-water-gas hybrid nozzle 22 includes oil mixing with water Venturi tube 220, outer layer delivery pipe 225 and internal layer Delivery pipe 226, oil mixing with water Venturi tube 220 have oilmist inlet 221, water sucking mouth 222 and jet exit 223, oilmist inlet 221 are connected with mist of oil delivery pipe 37, and water sucking mouth 222 is connected with water pipe 36, and jet exit 223 connects with outer layer delivery pipe 225, interior Layer delivery pipe 226 connects with the cold wind end 211 of vortex tube 21, and the transporting cold wind of internal layer delivery pipe 226, outer layer delivery pipe 225 conveys Mist of oil and water smoke, the mist of oil that the cold wind and outer layer delivery pipe 225 that internal layer delivery pipe 226 conveys convey mix with water smoke in oil-water-gas The jet hole 228 of the front end of shower nozzle 22 mixes.

Further, connected between internal layer delivery pipe 226 and the cold wind end 211 of vortex tube 21 by being incubated delivery pipe 23.

Further, water tank 12 is connected to the arrival end of air boost pump 4 by the 3rd appendix 33.

Further, the 3rd appendix 33 is provided with pressure-regulating valve 8.

Further, air boost pump 4 and gas tank 5 are connected in air inlet pipe 30, and the inlet end of air inlet pipe 30 and compression are empty Source of the gas connects, and the system also includes being separately positioned on air inlet pipe 30, the first appendix 31, the second appendix 32, the 3rd appendix 33 and water pipe 36 on multiple magnetic valves 3,14,13,7,16.

Specifically, the node that magnetic valve 3 is arranged in air inlet pipe 30 and is connected positioned at the 3rd appendix 33 with air inlet pipe 30 Front end；Magnetic valve 14 is arranged on the first appendix 31；Magnetic valve 13 is arranged on the second appendix 32 and positioned at compression refrigeration The front end of machine 11；Magnetic valve 7 is arranged on the 3rd appendix 33 and positioned at the front end of pressure-regulating valve 8；Magnetic valve 16 is arranged on On water pipe 36 and positioned at the front end of water pump 17.

Further, fluid delivery pipe 35 is provided with flow control valve 38.

Further, air inlet pipe 30 is provided with multiple filters 2,6, and one of filter 2 is located at air boost pump 4 Arrival end, another filter 6 are located at the port of export of gas tank 5.

Further, the system also includes the bypass pipe 39 being arranged in parallel with air inlet pipe 30, one end and the sky of bypass pipe 39 The arrival end connection of gas booster pump 4, the other end of bypass pipe 39 are connected with gas tank 5, and bypass pipe 39 is provided with check valve 15.

Further, the front end of air inlet pipe 30 is provided with gas conveying switch 1.Gas conveying switch 1 can be manual ball Valve, by manually opening and being maintained open state always in the equipment course of work before equipment work.

Further, mist of oil delivery pipe 37 is provided with mist of oil conveying switch 19, and mist of oil conveying switch 19 can be specifically gas Dynamic ball valve.

Further, compression refigerating machine 11 is the two-stage compression refrigeration machine with two level refrigeration.

Further, the second appendix 32 is insulation conveying tracheae, and the first appendix 31 and the 3rd appendix 33 then can be with Using common conveying tracheae.

In the present embodiment, gas conveying switch 1, filter 2, magnetic valve 3, magnetic valve 7, pressure-regulating valve 8, water tank 12 are logical Gas piping is crossed to link together.

Gas conveying switch 1, filter 2, check valve 15, gas tank 5 link together.When the pressure in gas tank 5 is less than often When pressing the pressure of compressed air, check valve 15 is opened, and can timely supplement the tolerance in gas tank 5.When air boost pump 5 occurs When failure does not work, atmospheric compression air will enter gas tank 5 from check valve 15, will not also make to occur without gas without oily during processing State, prevent from causing the losses such as tool wear quickening or breaking.

Gas conveying switch 1, filter 2, magnetic valve 3, air boost pump 4, gas tank 5, filter 6, magnetic valve 14, atomization Room 10 is linked together by gas piping.

As shown in Fig. 2 the venturi atomizer 18 that the present embodiment uses is that one kind is sufficiently mixed two kinds of fluid high-effectives Special equipment, itself does not have moving component, when air-flow by one by gradually small greatly and then venturi during by small gradually big pipeline Pipe throat, air-flow increase through flow velocity during narrow, and pressure declines, and make front and rear formation pressure differential, when there is a more pipe with small pipe diameter in throat Entrance when, form negative pressure, cutting oil 101 drawn by fluid delivery pipe 35 out of spray chamber 10 and come up and from inlet port 182, which enter venturi atomizer 18, mixes, and oil mist particles is formed in the presence of venturi atomizer, by compressed gas band It is injected under dynamic in spray chamber 10, forms fine mist of oil 9.

Further, it is fixed with dividing plate 102 in spray chamber 10, the middle part of dividing plate 102 offers multiple through following table thereon The through hole in face.In fine mist of oil 9 in spray chamber 10, there are part oil mist particles to be gathered into cutting oil droplet, the interval of spray chamber 10 Uniform aperture is provided with plate 102, the drop that mist of oil is formed can pass through this hole and collect in following fluid region.

In the present embodiment, fluid delivery pipe 35 is provided with flow control valve 38.When tool sharpening is not required to excessive mist of oil amount When, flow control valve 38 can be adjusted manually to control the size of the oil pump capacity of fluid delivery pipe 35, more accurately control use Oil mass, effectively save with oil mass, reduce cost.

Gas conveying switch 1, filter 2, magnetic valve 3, air boost pump 4, gas tank 5, filter 6, magnetic valve 13, compression Refrigeration machine 11 is linked together by gas piping.

Eddy current atomization nozzle 20 is transported to by being incubated conveying tracheae 32 by the cold wind that compression refigerating machine 11 freezes, is atomized Mist of oil 9 in room 10 is transported to eddy current atomization nozzle 20 by mist of oil delivery pipe 37, and the water 121 in water tank 12 is extracted out by water pump 17 It is transported to eddy current atomization nozzle 20；Cold wind, mist of oil, water are ejected into machining area after the mixing of eddy current atomization nozzle 20.

Preferably, compression refigerating machine 11 is the two-stage compression refrigeration machine with two level refrigeration, can so be provided with more The cold wind of low temperature.Fig. 3 show the workflow schematic diagram of the compression refigerating machine with two level refrigeration, and compressed air reaches pressure Contraction cold, by internal fore filter and compressed air is filtered, reduce impurity and moisture content in air；Compression By being inputted after pressure-regulating valve in drying chamber, drying chamber dehumidifies air to compressed air, prevents from containing in compressed air Moisture content and freeze at low temperature, influence the normal operation of equipment；Entered by dried compressed air in post-filter, Air is filtered again, the compressed gas after filtering, which enters in heat exchange 1, to be cooled, and the operation principle of heat exchange 1 is： Liquid refrigerant of the compressor by gaseous refrigerant compression for HTHP, being then delivered to after being radiated in condenser turns into normal The liquid refrigerant of warm high pressure；The refrigerant of liquid is through capillary, and into evaporator, space increase, pressure reduces, liquid Refrigerant will vaporize, and become the refrigerant of gaseous state low temperature, and so as to absorb substantial amounts of heat, evaporator cools therewith, then often Warm compressed air carries out heat exchange by evaporator；Then gaseous refrigerant returns to compressor and continues to compress (compression 1), continues Circulation；After the compressed gas of reduction temperature is compressed again after one-level is freezed, heat exchange 2 is transported to, in heat exchange 2 Cooling again is carried out, now air is cooled twice.(compression 2) is compressed again by the air to cool twice, After compression after excessively stream adjustable valve, the cold wind temperature in outlet is -50 DEG C to -70 DEG C of cold wind；Then conveyed by being incubated Tracheae 32 is transported to eddy current atomization nozzle 20.

As shown in figure 4, in eddy current atomization nozzle 20, the front portion of nozzle 20 is an oil-water-gas hybrid nozzle 22, nozzle 20 Rear portion be a vortex tube 21.It is very low that although compressed gas can provide temperature after the compression refigerating machine 11 of leading portion freezes Cold wind, but by the conveying of insulation conveying tracheae 32, especially after compared with long-distance sand transport, the cold of cold wind can scatter and disappear, and be Making up this part cold scatters and disappears, and further reduces the temperature of cold wind, and the utility model is also using vortex tube 21 to warp The low-temperature cold wind that the refrigeration of overcompression refrigeration machine 11 obtains is freezed again.Vortex tube (Vortex Tube) is that a kind of structure is non- Normal simple energy separation device, vortex tube phenomenon is found in nineteen twenty-two by a French scholar, in nineteen sixty with backwash Pipe starts to be commercially employed, and as a kind of core component for producing cold airflow, vortex tube passes through the development of decades, vortex tube Nowadays technology has been highly developed, and be used widely in worldwide.Operation principle：Blast injection enters vortex Behind pipe minor air cell, air-flow is rotating with to be up to 1,000,000 turns per minute of speed and flows to vortex tube hot gas and bring out mouth, a part of gas Stream is flowed out by control valve, after remaining gas is blocked, is reversely rotated in Primordial Qi stream inner ring with same rotating speed, and flow to whirlpool Flow tube cold air end.In the process, heat exchange occurs for two strands of air-flows, and inner ring air-flow turns cold, and is flowed out from front end, and outer shroud air-flow then becomes Heat, flowed out from rear end.

When being freezed again to low-temperature cold wind using vortex tube 21, low-temperature cold wind is tangentially from cold air inlet 210 Into vortex tube 21, when air-flow rotates at a high speed in vortex tube 21, unequal two of stagnation temperature is separated into after vortex converts Divide airflow layer, the gas flow temperature in centre is low, and the gas flow temperature in outer layer is high；Subsequent heat is from the hot gas end of rear end 212 discharge, and the cold wind after refrigeration exports from the cold wind end 211 of front end.

The relation of swirl control cold efficiency and air pressure

Indicate：A represents cold wind can degree of cooling；B, which represents hot blast, can rise temperature.

As shown above, swirl control cold efficiency is relevant with the size of import compressed air pressure, the bigger refrigeration effect of pressure Rate is higher；The system is provided with air boost pump 4 on air inlet pipeline, makes compressed air continue to be pressurized, with air pressure Rise, the refrigerating efficiency of vortex tube can improve with the raising of air pressure, therefore cold wind is transported to vortex tube and carries out three-level The cooling effect when effect of refrigeration can be than not being pressurized is more obvious, and after three-level is freezed, the temperature of compressed air can reach- 70 DEG C Dao -90 DEG C.

In vortex tube, the temperature and uninterrupted of cold airflow can also be controlled by the air flow valve adjusted in vortex tube System, as shown above, if the cold wind of vortex tube is brought out, gas ratio is lower, and the temperature of the cold wind end air-flow of vortex tube is got over It is low, but flow is also accordingly reduced.

As shown in figure 4, in the oil-water-gas hybrid nozzle 22 of the front end of eddy current atomization nozzle 20, mist of oil water smoke and cold wind are point Layer, the jet exit 223 of oil mixing with water Venturi tube 220 connects with outer layer delivery pipe 225, therefore outer layer delivery pipe 225 is Mist of oil and water smoke；The internal layer delivery pipe 226 of oil-water-gas hybrid nozzle 22 connects with the cold wind end 211 of vortex tube 21, therefore internal layer Delivery pipe 226 is low-temperature cold wind；Connected, can reduced cold by being incubated delivery pipe 23 between internal layer delivery pipe 226 and cold wind end 211 The cold of wind scatters and disappears；Mist of oil can absorb a part of cold wind of internal layer delivery pipe 226 in outer layer delivery pipe 225 with water smoke and come out Cold, it is possible to reduce the loss of cold wind cold；Meanwhile before oil-water-gas hybrid nozzle 22 is placed on eddy current atomization nozzle 20 End, mist of oil water smoke are directly sprayed after being mixed with cold wind, and mist of oil water smoke is not carried out first with cold wind in eddy current atomization nozzle 20 Mixing, the phenomenon that can so avoid mist of oil water smoke from being frozen after being mixed with cold wind in conveyance conduit.

As shown in figure 1, compressed gas passes through gas conveying switch 1, filter 2, magnetic valve 3, air boost pump 4, gas tank 5th, filter 6, magnetic valve 14 are reached at venturi atomizer 18, by the effect of venturi atomizer 18, spray chamber The cutting oil 101 of 10 bottoms is drawn onto at venturi atomizer 18 by fluid delivery pipe 35, and oil will be cut by compressed air 101 dispel to form mist of oil 9 and spray into spray chamber 10, and the mist of oil 9 after being atomized is by mist of oil delivery pipe 37 and opens Pneumatic ball Valve 19, it is transported in the oil-water-gas hybrid nozzle 22 of eddy current atomization nozzle 20.

Gas conveying switch 1, filter 2, magnetic valve 3, magnetic valve 7, pressure-regulating valve 8, water tank 12 are connected to one in turn Rise, after opening magnetic valve 16, the oil-water-gas that the water 121 in water tank 12 is transported to eddy current atomization nozzle 20 by water pump 17 mixes spray In first 22；By adjusting the frequency of water pump 17, regulating pondage can be played a part of；Compressed gas is logical by the 3rd appendix 33 Enter the upper cavity of water tank 12, the pressure of compressed gas can be utilized to aid in extruding by water 121, and further can be adjusted by pressure Section valve 8 carrys out the flow that regulating tank pressure reaches control water.

Mist of oil and water are transported at the oil mixing with water Venturi tube 220 of oil-water-gas hybrid nozzle 22, pass through the flow velocity of mist of oil The water drunk up is dispelled and mixed in Venturi tube；The outer layer that mixed water smoke mist of oil passes through oil-water-gas hybrid nozzle 22 The cold wind that the jet hole 228 that delivery pipe 225 is transported to the front end of oil-water-gas hybrid nozzle 22 conveys with internal layer delivery pipe 226 again mixes And it is ejected into machining area and is cooled down, lubricated and chip removal.

Cold wind temperature after the three-level refrigeration of eddy current atomization nozzle 20 is lower, the effect ratio reduced for cutting region temperature Common cryogenic gas cooling-down effect is more obvious, and the influence for cutter life and surface quality is more notable；Water smoke enters Enter to after cutting region, because the temperature of cutting region is very high, water smoke can seethe with excitement vaporization, and take away the heat of cutting region；Due to cutting Temperature of the area in processing is very high, and the simple cooling-down effect by low-temperature cold wind can not fully reduce the temperature of cutting region, pass through Coordinate water smoke to use, the cooling-down effect of cutting region can be made more obvious, and the use of cold wind can be reduced using water smoke Amount, reduces swirl control cold, and swirl control cold reduces the generation that can reduce noise；Simple mist of oil is entering temperature mistake It can be failed due to the high temperature of cutting region after high cutting region, so as to lose the lubrication property of mist of oil, and be used by comprehensive Low-temperature cold wind and water smoke, the temperature of cutting region can be fully reduced, ensure that mist of oil will not be because of high temperature after entering cutting region And lose lubrication property；Therefore, water smoke can play the effect for coordinating cold wind cooling, while it is also ensured that lubricating oil at this moment Lubrication property effect；Mist of oil mixing low temp cold wind and water smoke use, and can integrate the excellent of low-temperature cold wind, water smoke and mist of oil Gesture, there is highly significant to the suface processing quality for improving cutting-tool's used life and workpiece.

To prevent water 121 and cutting oil 101 from freezing at low temperature, the water 121 in water tank 12 can select low freezing point Water-based coolant, will not so be frozen in the case where temperature is very low, the water-based coolant main component of wherein low freezing point is Propane diols, tasteless ethanol, AMP-95 (2-amino-2-methyl-1-propanol), phytic acid, self-emulsifying synthetic ester, water.And mist The cutting oil 101 changed in room 10 can select subzero oily lubricant, wherein subzero oily lubricant is main Include monoesters (lauric acid monoester), isomery hexadecanol.

All magnetic valves and pneumatic ball valve switch automatically control by PLC (not shown) in the system, by controlling electricity Magnet valve 3,7,13,14,16 and mist of oil conveying switch 19 open the purpose that can reach control gas, mist of oil and water conveying, and this System can access machine tool system, and automatic operating is realized to signal by machine tool system.It is high that the system has been used for processing at present The difficult-to-machine materials such as temperature alloy, titanium alloy and stainless steel, obtain good using effect.

Low temperature combined mist technology changes the cooling processing mode of traditional cutting fluid, by using low-temperature cold wind with it is compound The mode that spraying is combined, low-temperature cold wind can make the temperature of cutting region lower, and temperature is to cutter life in reduction process With the influence of workpiece processing quality.Mist of oil coordinates cold wind using can prevent mist of oil from being lost in high temperature processing area due to high temperature Lubrication property.Water smoke can absorb more heats, and the substantial amounts of cutting heat in cutting region can be taken away by being injected in cutting region, by with Close low-temperature cold wind to use, the cooling-down effect of cutting region can be made more obvious.The pressure of air can be to vortex tube cooling effect Fruit produces important influence, by using air boost pump to supercharging air, the cryogenic gas after supercharging when flowing through vortex tube, The refrigeration of vortex tube can be improved.Low temperature combined mist technology can reduce the temperature of cutting region, extend the use of cutter Life-span, more preferable workpiece processing quality is obtained, while can reduce traditional cutting fluid using this low-temperature lubrication cooling system and use Caused environmental pollution, to human injury, a series of problem such as processing cost height.

[second embodiment]

As shown in figure 5, the water at low temperature mist cooling for cut lubrication supply system that the utility model second embodiment provides Essentially identical with above-mentioned first embodiment, difference is, in the present embodiment, eliminates and is arranged on water tank 12 and air inlet pipe 30 Between the 3rd appendix 33, while also eliminate the magnetic valve 7 and pressure-regulating valve 8 being arranged on the 3rd appendix 33.This Embodiment is drawn water by suction caused by water pump 17 and oil mixing with water Venturi tube 220 from water tank 12, can equally realize this The purpose of utility model.Remaining structure and operation principle of the present embodiment are identical with first embodiment, repeat no more here.

Above-mentioned embodiment is the embodiment of utility model, is not intended to limit implementation and the right model of utility model Enclose, the equivalence changes and modification that all contents according to described in the apllied protection domain of the utility model patent are made all should It is included in the range of the utility model patent.

Claims (10)

1. a kind of water at low temperature mist cooling for cut lubricates supply system, it is characterised in that including：

Air boost pump (4) and gas tank (5), the arrival end of the air boost pump (4) are connected with compressed air source, the supercharging air The port of export of pump (4) is connected with the gas tank (5), and the air boost pump (4) stores after the gas of compressed air source is pressurized Into the gas tank (5)；

Water tank (12), the water tank (12) is built with water (121)；

Spray chamber (10), the spray chamber (10) is oily (101) built with cutting, and the inner chamber top of the spray chamber (10) is provided with venturi Atomizer (18), the venturi atomizer (18) have air inlet (181), inlet port (182) and jet exit (183), The air inlet (181) of the venturi atomizer (18) is connected to the port of export of the gas tank (5) by the first appendix (31), should The inlet port (182) of venturi atomizer (18) is connected to the bottom of the spray chamber (10) by fluid delivery pipe (35)；

Eddy current atomization nozzle (20), the eddy current atomization nozzle (20) include vortex tube (21) and oil-water-gas hybrid nozzle (22), should Vortex tube (21) is connected to the port of export of the gas tank (5) by the second appendix (32), and second appendix (32) is provided with pressure Contraction cold (11), it is connected between the oil-water-gas hybrid nozzle (22) and the water tank (12) by water pipe (36), the water pipe (36) Water pump (17) is provided with, is connected between the oil-water-gas hybrid nozzle (22) and the spray chamber (10) by mist of oil delivery pipe (37), By the compression refigerating machine (11) refrigeration and the vortex tube (21) refrigeration cold wind with from the spray chamber (10) mist of oil (9) and Water (121) from the water tank (12) mixes in the oil-water-gas hybrid nozzle (22).

2. water at low temperature mist cooling for cut according to claim 1 lubricates supply system, it is characterised in that the oil-water-gas Hybrid nozzle (22) includes oil mixing with water Venturi tube (220), outer layer delivery pipe (225) and internal layer delivery pipe (226), the profit Mixing Venturi tube (220) has oilmist inlet (221), water sucking mouth (222) and jet exit (223), the oilmist inlet (221) It is connected with the mist of oil delivery pipe (37), the water sucking mouth (222) is connected with the water pipe (36), the jet exit (223) and the outer layer Delivery pipe (225) connects, and the internal layer delivery pipe (226) connects with the cold wind end (211) of the vortex tube (21), the internal layer delivery pipe (226) transporting cold wind, the outer layer delivery pipe (225) conveying mist of oil and water smoke, the cold wind and be somebody's turn to do that the internal layer delivery pipe (226) conveys The mist of oil of outer layer delivery pipe (225) conveying mixes with jet hole (228) of the water smoke in oil-water-gas hybrid nozzle (22) front end.

3. water at low temperature mist cooling for cut according to claim 2 lubricates supply system, it is characterised in that the internal layer is defeated Send and connected between pipe (226) and the cold wind end (211) of the vortex tube (21) by being incubated delivery pipe (23).

4. water at low temperature mist cooling for cut according to claim 1 lubricates supply system, it is characterised in that the water tank (12) arrival end of the air boost pump (4) is connected to by the 3rd appendix (33).

5. water at low temperature mist cooling for cut according to claim 4 lubricates supply system, it is characterised in that the 3rd is defeated Tracheae (33) is provided with pressure-regulating valve (8).

6. water at low temperature mist cooling for cut according to claim 4 lubricates supply system, it is characterised in that the air increases Press pump (4) and the gas tank (5) are connected in air inlet pipe (30), and the inlet end of the air inlet pipe (30) is connected with compressed air source, should System also includes being separately positioned on the air inlet pipe (30), first appendix (31), the second appendix (32), the 3rd gas transmission Manage multiple magnetic valves (3,14,13,7,16) on (33) and the water pipe (36).

7. water at low temperature mist cooling for cut according to claim 1 lubricates supply system, it is characterised in that the fluid is defeated Pipe (35) is sent to be provided with flow control valve (38).

8. water at low temperature mist cooling for cut according to claim 1 lubricates supply system, it is characterised in that the system is also Including the bypass pipe (39) being arranged in parallel with the air inlet pipe (30), one end of the bypass pipe (39) and the air boost pump (4) Arrival end is connected, and the other end of the bypass pipe (39) is connected with the gas tank (5), and the bypass pipe (39) is provided with check valve (15).

9. water at low temperature mist cooling for cut according to claim 1 lubricates supply system, it is characterised in that the compression system Cold (11) is the two-stage compression refrigeration machine with two level refrigeration.

10. water at low temperature mist cooling for cut according to claim 1 lubricates supply system, it is characterised in that this second Appendix (32) is insulation conveying tracheae.