CN207080795U - Minimal Quantity Lubrication Oil Mist Supply System for Machining - Google Patents
Minimal Quantity Lubrication Oil Mist Supply System for Machining Download PDFInfo
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- CN207080795U CN207080795U CN201720369975.0U CN201720369975U CN207080795U CN 207080795 U CN207080795 U CN 207080795U CN 201720369975 U CN201720369975 U CN 201720369975U CN 207080795 U CN207080795 U CN 207080795U
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- 238000001816 cooling Methods 0.000 claims abstract description 28
- 239000010687 lubricating oil Substances 0.000 claims abstract 5
- 239000007921 spray Substances 0.000 claims description 56
- 238000000889 atomisation Methods 0.000 claims description 18
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- Auxiliary Devices For Machine Tools (AREA)
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Abstract
The utility model discloses a trace lubricating oil mist supply system for machining, including the atomizer chamber, at least three venturi atomizer, at least three first gas-supply pipes, at least three first control valve, air booster pump and gas pitcher, at least three second gas-supply pipes, at least three second control valve and fluid conveyer pipe, this system can produce micron order tiny oil mist granule, the pressure boost function of self-carrying can guarantee that the oil mist can overcome the influence of cutter high rotational speed centrifugal force and flow field, reach the processing district through the main shaft and the cutter hole of high-speed rotation smoothly, control oil mist volume through controlling the open or close combination mode of different quantity venturi atomizer; the normal pressure, the pressurized air and three or more Venturi atomizing nozzles form different combined opening modes to adapt to different air flow and oil quantity required by different inner cooling apertures of the machining center tool magazine; the system is also suitable for external cold machining and internal cold machining.
Description
Technical field
The high-speed and high-efficiency Green Cutting Technologies field in machining is the utility model is related to, is used for more particularly to one kind
The micro lubricating mist of oil supply system of machining.
Background technology
High-speed Machining Technology is a kind of to have been widely used for aviation, mould, the high-performance technology of automobile and other industries.
Traditional cutting fluid type of cooling in process, because machine tool chief axis revolution at a high speed can produce centrifugal force, height around cutter
Fast flow field stream, tradition pour into a mould most cutting fluid under the type of cooling and are difficult to enter cutting zone, it is difficult to reach original cooling
And lubricant effect.In addition in difficult-to-machine materials such as machining titanium alloy, nickel-base alloys, cutting edge temperature can be substantially increased, if
Cooled down in this case using traditional coolant mode, coolant is when reaching cutting zone, due to the temperature of cutting zone
It is too high and cause the vaporization of part cutting fluid, hinder cutting fluid to enter machining area so as to form one between coolant and workpiece
Boiling film, so cause cutting fluid effectively to be lubricated cutting zone.In process, cutter is only cut
Sky knife both states are cut and walk, in cutting, cutter bears high temperature, and when walking sky knife, cutter is under the cooling of cutting fluid, temperature
The decline of degree drastically, cutter are constantly changed mutually in both states in process, and high fever solid metal can be rapidly
Cooling produces quenching effect, and metal surface can produce quenched martensite tissue, fragility enhancing while making the metal be hardened.Due to quenching
Fiery effect is directly proportional to the temperature difference, and improving cutting speed can make temperature higher, therefore stronger quenching effect will be produced by improving speed
Cutter life is caused to reduce.For coated cutting tool, coating rapidly cools down after constantly by high fever, and coating can be because by warm
Impact causes the generation of thermal stress so that coating surface produces the peeling of fire check, even partial coating, for coated cutting tool
For, such case can greatly reduce the service life of coated cutting tool.The other rate of recovery of cutting fluid after processing is very low,
And in process due to the splashing and vaporization of cutting fluid, surrounding can be made by floating aerial atomized cutting fluid particle
Working environment be deteriorated, influence the health of staff；There are the elements such as chlorine, phosphorus, sulphur in cutting fluid, if at cutting fluid
Manage incorrect, very big pollution can be produced to water source soil.
Micro lubricating (Minimum Quantity Lubricant, i.e. MQL) cutting technology is a kind of novel metal processing
Lubricating system, i.e. half dry type cutting is also near dry cutting, refer to by compressed gas with extremely micro cutting is oily mixes simultaneously vapour
After change, the droplet particles of micron level are formed, are ejected into cutting region at a high speed, had to the working position between cutter and workpiece
A kind of cutting working method of the lubrication of effect.MQL can greatly reduce the friction between cutter and workpiece and cutter and chip, can rise
Rise to suppression temperature, reduce tool wear, preventing adhesion and improve the effect of crudy, while being also beneficial to chip removal,
It is few using lubricating fluid, and effect is very notable, while work efficiency is improved, does not pollute the environment.
MQL implementations are divided into external and both built-in lubricating systems：External lubricating system operation principle phase
To relatively simple, cutting fluid is imported with gas mixing in spraying cooling system first, will by bull nozzle under using high pressure
The millimicro meter level aerosol formed after atomization is constantly ejected into cutting point.It is built-in, fog lubrication is produced inside atomizer
Agent, cutter is sent into by machine tool chief axis, sprayed by cutter nozzle.The ratio of distributive value and throughput can adjust.In addition in height
In fast machine tooling, because cutting oil particles are larger, and when by cutter endoporus, machine tool chief axis rotate at a high speed produced by compared with
Big centrifugal force can be such that cutting oil is attached on inner hole wall, and be agglomerated into cutting oil droplet, therefore to be less than 3 micro- for oil mist particles diameter
Rice, and need bigger pressure to overcome the influence of centrifugal force, mist of oil is smoothly reached cutting region.
When the equipment such as the work in-process heart use the MQL types of cooling, machining center has automatic tool changer function, is put in tool magazine
It is equipped with the cutter of cold pore size in difference.When being had using interior cryoprobe, due to cold in the interior cryoprobe tool of different tool diameters
The aperture of passage and interior cold outlet is different, when workpieces processing needs to switch cutter, such as inner cooling path and interior cold outlet opening
Footpath it is relatively small change into aperture it is larger when, relative aperture it is larger interior cryoprobe tool then need bigger mist of oil emitted dose,
At this time just needing the mist of oil emitted dose of MQL equipment can automatically adjust to provide the spray amount of most suitable cutter, so be not required to
Manual intervention and manually regulation are wanted, the unnecessary workload of workpeople can be reduced, while can also greatly improve work production effect
Rate.
Utility model content
In order to overcome shortcoming and defect present in prior art, the purpose of this utility model is that providing one kind is used for machine
The micro lubricating mist of oil supply system of tool processing, can produce the small oil mist particles of micron order, the function of increasing pressure carried can ensure
Mist of oil can overcome the influence in the high rotating speed centrifugal force of cutter and flow field, pass through the main shaft of rotation at a high speed and cutter endoporus is reached and added
Work area, the system control the venturi atomizer of varying number to be turned on and off combination to control mist of oil amount by PLC；Often
Pressure, pressurized air and three or more venturi atomizer formation various combination opening ways, to adapt to Cutters In Mc
The difference of cold aperture institute's air demand and oil mass in the difference of storehouse.
The purpose of this utility model is achieved through the following technical solutions：
The utility model provides a kind of micro lubricating mist of oil supply system for being used to be machined, including：
Spray chamber, the spray chamber are atomized built with cutting oil, the inner chamber top of the spray chamber provided with least three venturi
Shower nozzle, each venturi atomizer have air inlet, inlet port and jet exit；
At least three first appendixs, one end of at least three first appendixs are connected with compressed air source, and this is extremely
Air inlet of the other end of few three first appendixs respectively with least three venturi atomizer connects；
At least three first control valves, at least three first control valve are separately positioned at least three first appendixs
On to control the conducting and shut-off of at least three first appendixs respectively；
Air boost pump and gas tank, the entrance of the air boost pump are connected with compressed air source, and the air boost pump goes out
Mouth is connected with the gas tank, and the air boost pump will be stored into the gas tank after the gas boosting of compressed air source；
At least three second appendixs, one end of at least three second appendixs are connected with the gas tank, and this at least three
Air inlet of the other end of the appendix of root second respectively with least three venturi atomizer connects；
At least three second control valves, at least three second control valve are separately positioned at least three second appendixs
On to control the conducting and shut-off of at least three second appendixs respectively；
Fluid delivery pipe, the bottom of the fluid delivery pipe connect with the bottom of the spray chamber, the top of the fluid delivery pipe
The inlet port with least three venturi atomizer connects respectively.
Further, the internal diameter of the throat position of at least three venturi atomizer is different.
Further, the spray chamber is provided with oil mist outlet, and the system also includes：
Mist of oil delivery pipe, one end of the mist of oil delivery pipe are connected with the oil mist outlet；
Outer cold oil mist conveying switch and outer cold nozzle, wherein the mist of oil delivery pipe, the outer cold oil mist conveying switchs and this is outer
Cold nozzle is sequentially connected；
Interior cold oil mist conveying switch, interior cold hollow spindle and interior cryoprobe tool, wherein the mist of oil delivery pipe, the interior cold oil mist are defeated
Switch, the interior cold hollow spindle and the interior cryoprobe tool is sent to be sequentially connected.
Further, at least three first control valve and at least three second control valve are magnetic valve, the system
Also include：
Pressure sensor, the pressure sensor are used to detect the mist of oil pressure in the spray chamber；
PLC, the PLC respectively with least three first control valve, at least three second control valve and the pressure sensing
Device electric signal connects, mist of oil amounts of the PLC according to needed for judging the size of mist of oil pressure in the spray chamber, and then controls this at least
Corresponding magnetic valve is opened in three the first control valves and at least three second control valve.
Further, the system also includes fuel tank, oil pump and multiple level sensors, and the plurality of level sensor is arranged on
Inside the spray chamber, the fuel tank and the oil pump are connected to the spray chamber by oil pipe, the PLC respectively with the plurality of level sensor
Connected with the oil pump electric signal, the liquid level position that the PLC senses according to the plurality of level sensor judges the spray chamber inscribe
The amount of oil is cut, and then controls the oil pump to open or shut down to be embodied as the spray chamber automatic oiling.
Further, the system also includes：
First air inlet pipe, one end of first air inlet pipe are connected with compressed air source, the other end respectively with this at least three
First appendix connects；
Second air inlet pipe, one end of second air inlet pipe are connected with compressed air source, and the other end is connected with the gas tank, the sky
Gas booster pump is arranged in second air inlet pipe；
3rd air inlet pipe, one end of the 3rd air inlet pipe are connected with the gas tank, the other end respectively with this at least three second
Appendix connects.
Further, first air inlet pipe is provided with gas conveying switch, filter and magnetic valve, in second air inlet pipe
Be provided with filter provided with gas conveying switch, filter and magnetic valve, the 3rd air inlet pipe, the PLC respectively with two electricity
Magnet valve electric signal connects.
Further, the fluid delivery pipe is at least three, the bottoms of at least three fluid delivery pipes with the atomization
The bottom connection of room, the tops of at least three fluid delivery pipes inlet port with least three venturi atomizer respectively
Connection, this is at least equipped with flow control valve in three fluid delivery pipes.
Further, the fluid delivery pipe is one, and the top of the fluid delivery pipe is provided with least three branched pipes, and this is extremely
Few inlet port of three branched pipes respectively with least three venturi atomizer connects, and is all provided with least three branched pipe
There is flow control valve.
Further, atomization dividing plate is fixed with the spray chamber, is offered in the middle part of the atomization dividing plate multiple through thereon
The through hole of lower surface.
The utility model beneficial effect is：The system can refine oil mist particles, solve by cutter at high speeds rotation is produced
The problem of raw centrifugal force makes oil mist particles be agglomerated into cutting oil droplet；When replacing cutter is processed, mist of oil pressure and tolerance
The phenomenon of change or insufficient pressure is likely to occur, the system can ensure to export mist of oil tolerance stable supplying；The system architecture
Simply, various combination opening ways are only formed by normal pressure, pressurization gas and venturi atomizer and automatically controls mist of oil and gas
Amount injection, solve required different tolerance and mist of oil amount during multiple operation multicutter processing part；The system is applicable outer cold with interior simultaneously
Cold machining is processed, and can be used simultaneously for more lathes.
Brief description of the drawings
Fig. 1 is that the structure for the micro lubricating mist of oil supply system for being used to be machined in the utility model first embodiment is shown
It is intended to.
Fig. 2 is the partial structural diagram of a venturi atomizer in Fig. 1.
Fig. 3 is that the structure for the micro lubricating mist of oil supply system for being used to be machined in the utility model second embodiment is shown
It is intended to.
In figure：Gas conveying switch 1,9；Filter 2,7,10；Magnetic valve 3,6,8,11,27；Air boost pump 4；Gas tank
5；Check valve 12,22,25；It is atomized dividing plate 13；Venturi atomizer 14；Mist of oil 15；Safety exhaust 16；Mist of oil conveying switch
18、20；Spray chamber 19；Interior cold hollow spindle 21；Outer cold nozzle 23；Interior cryoprobe tool 24；Oil pump 26；Level sensor 28；Fuel tank
29；Cutting oil 30；PLC 31；Pressure sensor 32；Fluid delivery pipe 33；Flow control valve 34；Mist of oil delivery pipe 36；Outer cryoprobe
Tool 37；Oil pipe 38；First air inlet pipe 41；Second air inlet pipe 42；3rd air inlet pipe 43；First appendix 51；Second appendix 52；
Through hole 130；Air inlet 141；Inlet port 142；Jet exit 143；Oil mist outlet 190；Boost mode A；Constant pressure mode B.
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, the utility model first embodiment provide micro lubricating mist of oil supply system, available for it is interior it is cold and
External-cooling type high-speed machine tool is processed, and the system includes：
Spray chamber 19, the spray chamber 19 are provided with least three texts built with cutting oil 30, the inner chamber top of the spray chamber 19
Atomizer 14a, 14b, 14c in mound.Incorporated by reference to Fig. 2, each venturi atomizer 14a, 14b, 14c have air inlet 141,
Inlet port 142 and jet exit 143；
At least three first appendixs 51a, 51b, 51c, one end of at least three first appendixs 51a, 51b, the 51c are equal
Be connected with compressed air source, the other end of at least three first appendixs 51a, 51b, the 51c respectively with least three literary mound
In atomizer 14a, 14b, 14c air inlet 141 connect；
At least three first control valve 6a, 6b, 6c, at least three first control valve 6a, 6b, the 6c are separately positioned on this extremely
Few three first appendixs 51a, 51b, 51c are upper to control the conducting of at least three first appendixs 51a, 51b, the 51c respectively
With shut-off；
Air boost pump 4 and gas tank 5, the entrance of the air boost pump 4 are connected with compressed air source, the air boost pump 4
Outlet be connected with the gas tank 5, the air boost pump 4 will be stored into the gas tank 5 after the gas boosting of compressed air source；
At least three second appendixs 52a, 52b, 52c, one end of at least three second appendixs 52a, 52b, the 52c are equal
Be connected with the gas tank 5, the other end of at least three second appendixs 52a, 52b, the 52c respectively with least three venturi mist
The air inlet 141 for changing shower nozzle 14a, 14b, 14c connects；
At least three second control valve 8a, 8b, 8c, at least three second control valve 8a, 8b, the 8c are separately positioned on this extremely
Few three second appendixs 52a, 52b, 52c are upper to control the conducting of at least three second appendixs 52a, 52b, the 52c respectively
With shut-off；
Fluid delivery pipe 33, the bottom of the fluid delivery pipe 33 connect with the bottom of the spray chamber 19, the fluid delivery pipe
Inlet port 142 of 33 top respectively with least three venturi atomizer 14a, 14b, 14c connects.
Further, at least three first control valve 6a, 6b, the 6c and at least three second control valve 8a, 8b, the 8c are equal
For magnetic valve, the system also includes：
Pressure sensor 32, the pressure sensor 32 are used to detect the mist of oil pressure in the spray chamber 19；
PLC 31, the PLC 31 respectively with least three first control valve 6a, 6b, 6c, this at least three second control
Valve 8a, 8b, 8c connect with the electric signal of pressure sensor 32, and the PLC 31 sentences according to the size of mist of oil pressure in the spray chamber 19
Mist of oil amount needed for disconnected cooling and lubricating, and then control at least three first control valve 6a, 6b, the 6c and at least three second control
Corresponding magnetic valve is opened in valve 8a, 8b, 8c processed.
Further, the spray chamber 19 is provided with oil mist outlet 190, and the system also includes：
Mist of oil delivery pipe 36, one end of the mist of oil delivery pipe 36 are connected with the oil mist outlet 190；
Outer cold oil mist conveying switch 18 and outer cold nozzle 23, wherein the mist of oil delivery pipe 36, the outer cold oil mist conveying switch
18 are sequentially connected with the outer cold nozzle 23；
Interior cold oil mist conveying switch 20, interior cold hollow spindle 21 and interior cryoprobe tool 24, wherein the mist of oil delivery pipe 36, this is interior
Cold oil mist conveying switch 20, the interior cold hollow spindle 21 and the interior cryoprobe tool 24 are sequentially connected.
Further, the system also includes：
First air inlet pipe 41, one end of first air inlet pipe 41 are connected with compressed air source, the other end respectively with this at least
Three first appendix 51a, 51b, 51c connections；
Second air inlet pipe 42, one end of second air inlet pipe 42 are connected with compressed air source, and the other end connects with the gas tank 5
Connect, the air boost pump 4 is arranged in second air inlet pipe 42；
3rd air inlet pipe 43, one end of the 3rd air inlet pipe 43 are connected with the gas tank 5, the other end respectively with this at least three
Second appendix 52a, 52b, 52c connections.
Further, first air inlet pipe 41 is provided with gas conveying switch 9, filter 10, magnetic valve 11 and unidirectional
Valve 12, second air inlet pipe 42 are provided with gas conveying switch 1, filter 2 and magnetic valve 3, the 3rd air inlet pipe 43 and are provided with
Filter 7, the PLC 31 are connected with the magnetic valve 11 and the electric signal of magnetic valve 3 respectively.Gas conveying switch 9 close to this
The porch of one air inlet pipe 41 is set, and gas conveying switch 1 is set close to the porch of second air inlet pipe 42.
In the present embodiment, gas conveying switch 9, filter 10, magnetic valve 11 and check valve 12 are in the first air inlet pipe 41
Sequentially link together.When lathe works, gas conveying switch 9 is by manually opening and maintaining normally open.Work as PLC
When 31 control magnetic valves 11 are opened and control corresponding magnetic valve opening at least three first control valve 6a, 6b, the 6c, first
Air inlet pipe 41 accesses compressed air, then along the gas transmission of corresponding conducting in this at least three first appendixs 51a, 51b, 51c
Pipe reaches corresponding shower nozzle at least three venturi atomizer 14a, 14b, 14c, atmospheric compression air and cutting oil 30
Mixed in venturi atomizer 14a, 14b, 14c, then sprayed at a high speed into spray chamber 19 and form fine mist of oil 15.
This, the pressure of atmospheric compression air can be between 0.5~0.8Mpa.
In the present embodiment, gas conveying switch 1, filter 2, magnetic valve 3 and air boost pump 4 are in the second air inlet pipe 42
Sequentially link together and access gas tank 5.When lathe works, gas conveying switch 1 is by manually opening and remaining normally opened
State.When PLC 31 controls magnetic valve 3 to open and controls corresponding magnetic valve at least three second control valve 8a, 8b, the 8c
During opening, the second air inlet pipe 42 access compressed air, then it will be stored into by air boost pump 4 after the gas boosting of compressed air
In gas tank 5, the pressurization gas in gas tank 5 is further along the 3rd air inlet pipe 43 and at least three second appendixs 52a, 52b, the 52c
The appendix of middle corresponding conducting reaches corresponding shower nozzle at least three venturi atomizer 14a, 14b, 14c, supercharging pressure
Contracting air and cutting oil 30 are mixed in venturi atomizer 14a, 14b, 14c, are then sprayed at a high speed into spray chamber 19
Form fine mist of oil 15.
Wherein, it can be same to access the first air inlet pipe 41 and the compressed air source of the second air inlet pipe 42, so need not
Multiple compressed air sources are set.
Further, collateral branch's pipeline 44 is also associated with the second air inlet pipe 42, collateral branch's pipeline 44 is provided with check valve 25.
Gas conveying switch 1, filter 2, check valve 25, gas tank 5 are connected, when the air pressure in gas tank 5 is less than normal pressure, check valve 25
Open, the air pressure in gas tank 5 can be supplemented rapidly.
Normal pressure supplies and supercharge all uses pulse intelligent plenum system, is automatically controlled by PLC 31, when pressure passes
When sensor 32 detects that pressure is higher than setting value in spray chamber 19, controlled by PLC 31 and close in gas circuit the magnetic valve to have worked；
When detecting that pressure is less than setting value in spray chamber 19, the magnetic valve opened and work is needed in gas circuit is controlled by PLC 31；This
Function can accurately control the range of pressure values in spray chamber 19, the pressure formed in intelligent control spray chamber 19 with inlet end
Difference, so as to ensure and stabilize the effect of atomization.
In the present embodiment, atomization dividing plate 13 is fixed with the spray chamber 19, the middle part of the atomization dividing plate 13 offers multiple
Through the through hole 130 of its upper and lower surface.In fine mist of oil 15 in the spray chamber 19, there are part oil mist particles to be gathered into cutting
Oil droplet, uniform aperture is provided with the median septum 13 of spray chamber 19, and the drop that mist of oil is formed can pass through this hole and collect following
Fluid region.
In the present embodiment, the fluid delivery pipe 33 is at least three, the bottoms of at least three fluid delivery pipes 33 with
The bottom connection of the spray chamber 19, the top of at least three fluid delivery pipes 33 is atomized with least three venturi respectively sprays
Head 14a, 14b, 14c inlet port 142 connect, and this is at least equipped with flow control valve 34 in three fluid delivery pipes 33, may be used also
The size of every oil pump capacity of fluid delivery pipe 33 is controlled to adjust flow control valve 34 manually.
As shown in Fig. 2 venturi atomizer 14a, 14b, 14c that the present embodiment uses are that one kind makes two kinds of fluid high-effectives
Well-mixed special equipment, itself does not have moving component, when air-flow by one by gradually small greatly and then by small gradually big pipeline
When (venturi throat), air-flow increases through flow velocity during narrow, and pressure declines, make it is front and rear form pressure differential, when throat has
During the entrance of one more pipe with small pipe diameter, negative pressure is formed, cutting oil 30 is drawn to come up simultaneously out of spray chamber 19 by fluid delivery pipe 33
Enter venturi atomizer 14a, 14b, 14c from inlet port 142, oil is formed under its venturi action of venturi atomizer
Mist particle, driven down and be injected into spray chamber 19 by compressed gas.Design discharge regulating valve 34 is controlled in fluid delivery pipe 33
The uninterrupted of system cutting oil 30, you can the ratio of control cutting oil 30 and compressed gas.
Preferably, the internal diameter of at least three venturi atomizer 14a, 14b, 14c throat position is different, its
Middle throat position be corresponding to the internal diameter minimum position of venturi atomizer at, as shown in the C in Fig. 2.In the present embodiment
It is assumed that the internal diameter of venturi atomizer 14a, 14b, 14c throat position increases successively, i.e. venturi throat internal diameter 14a<14b
<14c, but not limited to this.By the way that at least three venturi atomizer 14a, 14b, 14c throat's internal diameter are arranged to respectively not
Identical, different venturi atomizer 14a, 14b, 14c can electromagnetism different from magnetic valve 8a, 8b, 8c and 6a, 6b, 6c
The unlatching of valve realizes more shower nozzle combinations to arrange in pairs or groups.
Venturi atomizer 14a, 14b, 14c of atmospheric compression air and booster compression air and different inner diameters can be with
Formed and produce the combination of different sizes of mist of oil amount, venturi throat internal diameter 14a<14b<14c, according to bigger pressure differential mist of oil amount more
Greatly, the faster pressure differential of the smaller flow velocity of venturi atomizer internal diameter is bigger, can obtain a series of different permutation and combination.Example
Such as, the combination under constant pressure mode B has：6a+14a；6b+14b；6c+14c；(6a+14a)+(6b+14b)；(6a+14a)+(6c+
14c)；(6b+14b)+(6c+14c) etc.；Combination under boost mode A has：8a+14a；8b+14b；8c+14c；(8a+14a)+
(8b+14b)；(8a+14a)+(8c+14c), (8b+14b)+(8c+14c) etc.；And for example, under constant pressure mode B and boost mode A
It has been mutually combined：(6a+14a)+(8a+14a)；(6a+14a)+(8b+14b)；(6a+14a)+(8c+14c)；(6b+14b)+(8a
+14a)；(6b+14b)+(8b+14b)；(6b+14b)+(8c+14c) etc., a series of reality can be obtained by permutation and combination relation
Example does not illustrate one by one.Different aerosols and mist of oil amount are needed according to different inner diameters cutter, the combination more than corresponds to various knives
Tool is processed, so as to reach different tool sharpening requirements.
When cutter inner cooling aperture is the cutter of small-bore, in cutting process is carried out, it is only necessary to which venturi is atomized
Shower nozzle 14a is opened, and now constant pressure mode B atmospheric compression air enters filter 10, air by gas conveying switch 9
Check valve 12 is flowed through after filtration drying, now magnetic valve 6a is opened, and gas reaches venturi atomization spray by appendix 51a
Head 14a, fluid is atomized into mist of oil 15 at shower nozzle 14a, enters in spray chamber 19.Mist of oil 15 in spray chamber 19 passes through oil
Mist delivery pipe 36 enters interior cryoprobe tool 24 or outer cold nozzle 23 is ejected into machining region.
When mist of oil amount is too small in process by unlatching constant pressure mode B, boost mode A can be opened, now supercharging pressure
Contracting air reaches filter 2 by gas conveying switch 1, and air passes through filtration drying, and air boost pump 4 is started working, supercharging
Gas is entered in gas tank 5, and the pressurization gas stream in gas tank 5 reaches magnetic valve 8a by filter 7, and now magnetic valve 8a is opened,
Gas is reached at venturi atomizer 14a by appendix 52a, and now the pressure difference increase at shower nozzle 14a, increases mist of oil amount
Greatly, while increasing the pressure in spray chamber 19, interior cryoprobe tool 24 or outer cold nozzle 23 is made to be ejected into machining region
Mist of oil amount and air pressure increase.
When tool dimension is large scale cutter, now, gas conveying switch 9 is opened, and constant pressure mode B atmospheric compression is empty
Gas enters filter 10, and air flows through check valve 12 after filtration drying, and now magnetic valve 6c is opened, and gas passes through appendix
51c conveyance conduits reach venturi atomizer 14c, and fluid is atomized into mist of oil 15 at shower nozzle 14c, enters spray chamber 19
In.
, can be with if opening constant pressure mode B mist of oil amount and during too small air pressure in process during large scale tool sharpening
Boost mode A is opened, now booster compression air reaches filter 2 by gas conveying switch 1, and air passes through filtration drying,
Air boost pump 4 is started working, and pressurization gas is entered in gas tank 5, and the pressurization gas stream in gas tank 5 reaches electricity by filter 7
Magnet valve 8c, now magnetic valve 8c unlatchings, gas are reached at shower nozzle 14c by appendix 52c, and now the pressure difference at shower nozzle 14c increases
Greatly, increase mist of oil amount, while increasing the pressure in spray chamber 19, be ejected into interior cryoprobe tool 24 or outer cold nozzle 23
Mist of oil amount and the air pressure increase in machining region.
These are only it is several in the case of utilization for example, actually can also according to needed for mist of oil amount size, lead to
The unlatchings of different magnetic valves in control magnetic valve 8a, 8b, 8c and 6a, 6b, 6c is crossed to realize different shower nozzles combinations, to meet difference
The mist of oil amount demand of cutter cooling and lubricating.
Magnetic valve 8a, 8b, 8c and 6a, 6b, 6c are connected with PLC 31, and PLC 31 is by controlling the unlatchings of different magnetic valves
To realize the pattern of different shower nozzle combinations.The nozzle pattern of different tool bores is corresponded to by lathe, when lathe carries out tool changing
It is signaled to PLC 31, PLC 31 performs the unlatching of programme-control magnetic valve compiled in advance, to realize different pore size
Cutter lubrication.
The switch of all magnetic valves automatically controls by PLC in the present apparatus, due to being led in major diameter during 24 processing of cryoprobe tool
When causing the situation of gas pressure and hypoventilation, pass through for controlling magnetic valve 6a, 6b, 6c and magnetic valve 8a, 8b, 8c to open
Number can reach control mist of oil amount and the purpose of air pressure with combined situation.
Mist of oil 15 can out pass through mist of oil delivery pipe 36, interior cold oil mist conveying switch 20, interior cold sky respectively from spray chamber 19
Heart main shaft 21 reaches cold working in the interior progress of cryoprobe tool 24；Or mist of oil 15 can out convey by mist of oil respectively from spray chamber 19
Pipe 36, outer cold oil mist conveying switch 18 reach outer cold nozzle 23 by oil pipe and carry out outer cold working；Or mist of oil 15 is from spray chamber
19 are out supplied to interior cold working and outer cold working to use simultaneously.
When using the cold type of cooling in MQL, mist of oil conveying switch 20 is opened, mist of oil passes through the interior cold He of hollow spindle 21
In interior cryoprobe tool 24, mist of oil sprays from the outlet of interior cryoprobe tool 24, realizes the effect of cooling and lubricating.When using cold square outside MQL
During formula, mist of oil conveying switch 18 is opened, final mist of oil reaches outer cryoprobe tool 37 by outer cold nozzle 23 and is lubricated cooling.When
When simultaneously using cold in the MQL and outer cold type of cooling, mist of oil conveying switch 18,20 is opened, mist of oil passes through interior cold hollow master
Axle 21 and interior cryoprobe tool 24 spray, while mist of oil reaches outer cryoprobe tool 37 by outer cold nozzle 23.
Further, the system also includes fuel tank 29, oil pump 26 and multiple level sensor 28a, 28b, 28c, the plurality of
Level sensor 28a, 28b, 28c are arranged on inside the spray chamber 19, and the fuel tank 29 and the oil pump 26 are connected to by oil pipe 38
The spray chamber 19, the PLC 31 are connected with the plurality of level sensor 28a, 28b, 28c and the electric signal of oil pump 26 respectively, should
PLC 31 judges to cut oil 30 in the spray chamber 19 according to the plurality of level sensor 28a, 28b, 28c liquid level position sensed
Amount, and then control the oil pump 26 to open or shut down to be embodied as the automatic oiling of spray chamber 19.
Magnetic valve 27 and check valve 22 are additionally provided with oil pipe 38, fuel tank 29 and magnetic valve 27, oil pump 26, check valve 22 are logical
Cross oil pipe 38 and be connected to spray chamber 19.The PLC 31 is also connected with the electric signal of magnetic valve 27., should when being refueled to spray chamber 19
The control magnetic valves 27 of PLC 31 are opened and control oil pump 26 starts.Check valve 22 can prevent the fluid in spray chamber 19 from passing through oil
Pipe 38 flows backward to fuel tank 29.
Level sensor is three in the present embodiment, and three level sensors 28a, 28b, 28c are arranged in spray chamber 19
In close to bottom and close between dividing plate 13.Wherein, liquid level sensor 28a position highest, liquid level sensor 28c position is most
Low, liquid level sensor 28b position is between liquid level sensor 28a and liquid level sensor 28c.According to liquid level sensor 28a,
The liquid level position that 28b, 28c are sensed, PLC 31, the control oil pumps of PLC 31 are fed back to when sensor 28b receives liquid level signal
26 open automatic oiling.PLC 31 is fed back to when sensor 28a receives liquid level signal, the control oil pumps 26 of PLC 31 stop adding
Oil.Illustrate that automatic oiling function breaks down, it is necessary to carry out shutdown processing when sensor 28c receives liquid level signal.
For system safety, the system is additionally provided with safety exhaust 16, safety exhaust 16 be separately mounted to gas tank 5 and
The top of spray chamber 19.When pressure in gas tank 5 and spray chamber 19 exceedes the upper limit, safety exhaust 16 automatically opens up exhaust and let out
Pressure, plays a part of maintaining system safety.
When Complex Parts are processed, cutter sizes specification and interior cold aperture in machining center differ, and required mist of oil amount is gentle
Amount is also different, and large scale cutter needs more mist of oils and tolerance, and small size cutter is conversely, the system can pass through multiple combinations mode
It is to provide optimal mist of oil amount and tolerance supply option in process by PLC controls, solves when venturi atomizer hole
When footpath is less than cutter inner cooling hole the problem of mist of oil amount insufficient supply, the system is connected with using lathe, and intelligence changes operational mode,
Manual operation is not required to, improves production efficiency.Other supercharging device brings some excellent performances, overcomes the effect of centrifugal force,
Overcome high speed rotational flow field, ensure that mist of oil does not converge before cutting region is reached, pressurized effect is outstanding in deep hole and embedded SMA actuators
To be notable.The system also has an automatic oiling function, being capable of automatic oiling during oily hypovolia.
[second embodiment]
As shown in figure 3, micro lubricating mist of oil supply system and first embodiment that the utility model second embodiment provides
Micro lubricating mist of oil supply system in (Fig. 1) is essentially identical, and difference is, in the present embodiment, the fluid delivery pipe
33 be one, and the top of the fluid delivery pipe 33 is provided with least three branched pipes, at least three branched pipe respectively with this at least
Three venturi atomizers 14a, 14b, 14c inlet port 142 are connected, and Flow-rate adjustment is equipped with least three branched pipe
Valve 34.Above-mentioned first embodiment is compared, the present embodiment can reduce the quantity of fluid delivery pipe 33, and structure is simpler.
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 scope of patent protection of the present utility model.
Claims (10)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106885122A (en) * | 2017-04-10 | 2017-06-23 | 东莞安默琳机械制造技术有限公司 | Minimal Quantity Lubrication Oil Mist Supply System for Machining |
| CN109506115A (en) * | 2018-11-22 | 2019-03-22 | 北京精密机电控制设备研究所 | A kind of compact oil fog generating apparatus |
| CN109731705A (en) * | 2018-12-27 | 2019-05-10 | 上海工程技术大学 | A minimal amount lubrication device and method of using the same |
| CN110449980A (en) * | 2019-07-04 | 2019-11-15 | 汇专绿色工具有限公司 | A kind of lubricating system with trace amount and its output fuel-flow control method |
| IT201900006082A1 (en) * | 2019-04-18 | 2020-10-18 | Dropsa Spa | Air / oil mist generator |
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| AU2021236566B2 (en) * | 2020-11-09 | 2022-10-20 | Qingdao university of technology | Intelligent switching system for switching internal cooling and external cooling based on minimal quantity lubrication and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106885122A (en) * | 2017-04-10 | 2017-06-23 | 东莞安默琳机械制造技术有限公司 | Minimal Quantity Lubrication Oil Mist Supply System for Machining |
| CN109506115A (en) * | 2018-11-22 | 2019-03-22 | 北京精密机电控制设备研究所 | A kind of compact oil fog generating apparatus |
| CN109731705A (en) * | 2018-12-27 | 2019-05-10 | 上海工程技术大学 | A minimal amount lubrication device and method of using the same |
| EP3725415A1 (en) * | 2019-04-18 | 2020-10-21 | DROPSA S.p.A. | Air/oil mist generator |
| IT201900006082A1 (en) * | 2019-04-18 | 2020-10-18 | Dropsa Spa | Air / oil mist generator |
| IT201900006072A1 (en) * | 2019-04-18 | 2020-10-18 | Dropsa Spa | Air / oil mist generator |
| IT201900006062A1 (en) * | 2019-04-18 | 2020-10-18 | Dropsa Spa | Air / oil mist generator |
| EP3725418A1 (en) * | 2019-04-18 | 2020-10-21 | DROPSA S.p.A. | Air/oil mist generator |
| EP3725414A1 (en) * | 2019-04-18 | 2020-10-21 | DROPSA S.p.A. | Air/oil mist generator |
| CN111828819A (en) * | 2019-04-18 | 2020-10-27 | 德罗普萨股份公司 | Gas/oil mist generator |
| US11828414B2 (en) | 2019-04-18 | 2023-11-28 | Dropsa S.P.A. | Air/oil mist generator |
| CN110449980A (en) * | 2019-07-04 | 2019-11-15 | 汇专绿色工具有限公司 | A kind of lubricating system with trace amount and its output fuel-flow control method |
| AU2021236566B2 (en) * | 2020-11-09 | 2022-10-20 | Qingdao university of technology | Intelligent switching system for switching internal cooling and external cooling based on minimal quantity lubrication and method |
| AU2021236567B2 (en) * | 2020-11-09 | 2022-10-20 | Qingdao university of technology | Internal cooling/external cooling-switching milling minimum-quantity-lubrication intelligent nozzle system and method |
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