CN106838590A - High-pressure pneumatic pulse micro lubricant mist supply system - Google Patents
High-pressure pneumatic pulse micro lubricant mist supply system Download PDFInfo
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- CN106838590A CN106838590A CN201710229307.2A CN201710229307A CN106838590A CN 106838590 A CN106838590 A CN 106838590A CN 201710229307 A CN201710229307 A CN 201710229307A CN 106838590 A CN106838590 A CN 106838590A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
- F16N7/40—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems in a closed circulation system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/02—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
- F16N7/32—Mist lubrication
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a kind of high-pressure pneumatic pulse micro lubricant mist supply system, including spray chamber, at least two venturi atomizers, the first appendix and the second appendix；First appendix is connected with one of venturi atomizer, and the first air boost pump and the first control valve are connected with the first appendix；Second appendix is connected with another venturi atomizer, and the second air boost pump and the second control valve are connected with the second appendix；First air boost pump produces low power pressurized air, the second air boost pump to produce high power pressurized air, the second control valve to be arranged to be repeatedly opened and close so that the venturi atomizer being connected with the second appendix carries out pulse operation.The system provides low power supercharging and high power supercharging mode on the basis of Ordinary Compression air and carries out supply mist of oil, and high power takes the pulse operation mode can to provide enough mist of oils, is conducive to lubrication and the chip removal of deep hole machining.
Description
Technical field
The present invention relates to the accessory system of efficient green near-dry type deep hole machining, more particularly to a kind of high-pressure pneumatic pulse
Type micro lubricant mist supply system.
Background technology
Deep hole typically refers to hole of the aspect ratio more than 6 times, but most of aspect ratios are above during reality processing
100 times, such as oil har opening of engine, the axial oilhole of axle, hollow spindle hole and hydraulic pressure valve opening.Deep hole machining compares shallow bore hole
There are many difficult points in processing, such as the long diameter of channel of chip removal is smaller, and chip removal is difficult, it is impossible to which timely chip removal will cause built-up edge
Produce and workpiece can be abraded and cutter is easily damaged, while the difficult cutter that radiates easily aggravates cutter because temperature in borehole is too high
The rate of wear, the surface accuracy for reducing workpiece.Tool in Cutting situation cannot be can be visually seen during deep hole machining, can only be with work
Cutting sound, observation chip, hand is listened to touch vibration with workpiece temperature, observation instrument (oil pressure gauge and ammeter) to judge cutting as experience
Whether process is normal.
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, to refer to and mix simultaneously vapour by compressed gas and extremely micro cutting are oily
After change, the droplet particles of micron level are formed, cutting region is ejected at a high speed, had to the working position between cutter and workpiece
A kind of cutting working method of the lubrication of effect.Generally, the generation method of MQL sprayings, is by air in venturi nozzle part
Pressure dispels oil；And the ability sprayed is mainly relevant with the pressure differential that venturi nozzle is imported and exported.
If using common MQL devices when deep hole machining is carried out, when venturi atomizer internal diameter is constant, in cutter
When cold hole is again minimum, because cutter inner cooling mouth goes out, and bore is small, the mist of oil amount that venturi atomizer sprays enters nothing after spray chamber
Method is quick to discharge from cutter inner cooling mouthful, so venturi atomizer inlet end can be caused to diminish with the pressure differential of spray chamber, and
Make slack-off by the compressed air flow velocity in venturi atomizer, oil absorption diminishes, oil mist concentration reduction in spray chamber, from
And cause the mist of oil amount of interior cryoprobe tool outlet to diminish, so effectively lubricating cannot be carried out.
The content of the invention
In order to overcome shortcoming and defect present in prior art, it is an object of the invention to provide a kind of high pressure gas artery
Type micro lubricant mist supply system is rushed, low power compressed air supercharge is mutual with high power pulse of compressed air formula supercharge
Cooperation carries out micro lubricating auxiliary deep hole machining, is conducive to the lubrication during deep hole machining and chip removal.
The purpose of the present invention is achieved through the following technical solutions：
The present invention provides a kind of high-pressure pneumatic pulse micro lubricant mist supply system, including：
Spray chamber, the spray chamber is provided with the atomization of at least two venturi built with cutting oil, the inner chamber top of the spray chamber
Shower nozzle, each venturi atomizer has air inlet, inlet port and jet exit；
First appendix, one end of first appendix is connected with compressed air source, the other end of first appendix with
The air inlet connection of the one of venturi atomizer at least two venturi atomizer；
First air boost pump, the first gas tank and the first control valve, first air boost pump, first gas tank and this
One control valve is connected on first appendix, and the entrance of first air boost pump is connected with compressed air source, first sky
The outlet of gas booster pump is connected with first gas tank, and the gas of compressed air source is carried out low power supercharging by first air boost pump
After be stored into first gas tank, the first control valve is connected to the port of export of first gas tank, and the first control valve control should
The conducting of the first appendix and shut-off；
Second appendix, one end of second appendix is connected with compressed air source, the other end of second appendix with
The air inlet connection of another venturi atomizer at least two venturi atomizer, with the second appendix phase
Throat's internal diameter of venturi atomizer even is less than throat's internal diameter of the venturi atomizer being connected with first appendix；
Second air boost pump, the second gas tank and the second control valve, second air boost pump, second gas tank and this
Two control valves are connected on second appendix, and the entrance of second air boost pump is connected with compressed air source, second sky
The outlet of gas booster pump is connected with second gas tank, and the gas of compressed air source is carried out high power supercharging by second air boost pump
After be stored into second gas tank, the second control valve is connected to the port of export of second gas tank, and the second control valve control should
The conducting and shut-off of the second appendix, and the second control valve is arranged to be repeatedly opened and closing is caused and the second appendix phase
Venturi atomizer even carries out pulse operation；
Fluid delivery pipe, the bottom of the fluid delivery pipe connects with the bottom of the spray chamber, the top of the fluid delivery pipe
The inlet port with least two venturi atomizer is connected respectively.
Further, this first controls valve for magnetic valve, and the system also includes：
Pressure sensor, the pressure sensor is used to detect the mist of oil pressure in the spray chamber；
PLC, the PLC are connected with the first control valve and the pressure sensor electric signal respectively, and the PLC is according to the spray chamber
The size of interior mist of oil pressure, controls the open and close of the first control valve.
Further, this second controls valve for magnetic valve, and the PLC is connected with the second control valve electric signal, and the PLC is controlled
The second control valve is closed after a period of time is opened, and is opened after a period of time is closed, and so circulation makes the second control valve
It is opened repeatedly and closing.
Further, the system also includes air inlet pipe, and one end of the air inlet pipe is connected with compressed air source, the air inlet pipe
The other end is connected with first appendix and second appendix respectively, and the air inlet pipe is provided with gas conveying switch, and this first
Appendix is provided with magnetic valve, and the magnetic valve is located at the arrival end of first air boost pump, and second appendix is provided with electricity
Magnet valve, the magnetic valve is located at the arrival end of second air boost pump, and the PLC is connected with two magnetic valve electric signals respectively.
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 PLC judges the spray chamber inscribe according to the liquid level position that the plurality of level sensor is sensed
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 second control valve is connected with a time relay, and the time relay controls the second control valve
Open a period of time after close, close a period of time after open, so circulation make this second control valve be opened repeatedly with
Close.
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 is connected with the oil mist outlet；
Mist of oil conveying switch, interior cold hollow spindle and interior cryoprobe tool, the mist of oil delivery pipe, mist of oil conveying are switched, this is interior
Cold hollow spindle and the interior cryoprobe tool are sequentially connected.
Further, the system also includes：
First bypass pipe, first bypass pipe is in parallel with first appendix, and one end of first bypass pipe is empty with compression
Source of the gas is connected, and the other end of first bypass pipe is connected with first gas tank, and first bypass pipe is provided with the first check valve；
Second bypass pipe, second bypass pipe is in parallel with second appendix, and one end of second bypass pipe is empty with compression
Source of the gas is connected, and the other end of second bypass pipe is connected with second gas tank, and second bypass pipe is provided with the second check valve.
Further, the fluid delivery pipe is at least two, at least two bottoms of fluid delivery pipe with the atomization
Room bottom connection, at least two tops of fluid delivery pipe respectively with the inlet port of at least two venturi atomizer
Connection, flow control valve is equipped with least two fluid delivery pipes.
Further, the fluid delivery pipe is one, and the top of the fluid delivery pipe is provided with least two branched pipes, and this is extremely
Inlet port of few two branched pipes respectively with least two venturi atomizer is connected, and is all provided with least two branched pipe
There is flow control valve.
Beneficial effect of the present invention is：There is provided a kind of Special lubricating equipment for deep hole machining, a set of high pressure is provided with
Pulsed oil fog generating apparatus, pressure differential higher can supplement mist of oil supply, it is ensured that enough mist of oil amount supplies, solve
During deep hole machining common MQL devices cannot the enough mist of oil amounts of effective supply, improve cutter life, improve production efficiency etc.
Problem, simultaneously because the moment momentum effect of air pulsing formula, is very beneficial for the exclusion of chip.
Brief description of the drawings
Fig. 1 is the structural representation of first embodiment of the invention mesohigh air pulsing type micro lubricant mist supply system
Figure.
Fig. 2 is a partial structural diagram for venturi atomizer in Fig. 1.
Fig. 3 is the structural representation of second embodiment of the invention mesohigh air pulsing type micro lubricant mist supply system
Figure.
In figure：Gas conveying switch 1；Filter 2,8,15；Pressure inductor 3；Magnetic valve 4,11,34；Air boost pump
5、12；Gas tank 6,13；Safety exhaust 7,14,23；Check valve 10,16,32；Flow control valve 17；Control valve 18a, 18b；Pressure
Force snesor 19；Venturi atomizer 20a, 20b；Mist of oil delivery pipe 21；Mist of oil conveying switch 22；Oil filler 24,35；Mist of oil
25；Spray chamber 26；Dividing plate 27；Main shaft joint 28；Interior cold hollow spindle 29；Interior cryoprobe tool 30；Level sensor 31；Oil pump 33；
Cutting oil 36；Fluid delivery pipe 37；Fuel tank 38；Oil pipe 39；Air inlet pipe 40；Appendix 41,42；Bypass pipe 51,52；PLC 60；
Through hole 270；Air inlet 201；Inlet port 202；Jet exit 203；Oil mist outlet 260.
Specific embodiment
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, but is not of the invention
Practical range is confined to this.
[first embodiment]
As shown in figure 1, the high-pressure pneumatic pulse micro lubricant mist supply system that first embodiment of the invention is provided, fits
Cooling and chip removal are lubricated together in the interior cryoprobe tool to deep hole machining, the system includes：
Spray chamber 26, built with cutting oil 36, the inner chamber top of spray chamber 26 is provided with least two venturi to spray chamber 26
Atomizer 20a, 20b.In the present embodiment, by taking two venturi atomizers 20a, 20b as an example, but the invention is not restricted to this.
Incorporated by reference to Fig. 2, each venturi atomizer 20a, 20b have air inlet 201, inlet port 202 and jet exit 203；
First appendix 41, one end of the first appendix 41 is connected with compressed air source, the other end of the first appendix 41
Air inlet 201 with the one of venturi atomizer 20a in two venturi atomizers 20a, the 20b is connected；
First air boost pump 5, the first gas tank 6 and the first control valve 18a, the first air boost pump 5, the and of the first gas tank 6
First control valve 18a is connected on the first appendix 41, and the entrance of the first air boost pump 5 is connected with compressed air source, and first
The outlet of air boost pump 5 is connected with the first gas tank 6, and the gas of compressed air source is carried out low power (such as by the first air boost pump 5
It is stored into the first gas tank 6 after 2X) being pressurized, the first control valve 18a is connected to the port of export of the first gas tank 6, the first control valve 18a
Control the conducting and shut-off of the first appendix 41；
Second appendix 42, one end of the second appendix 42 is connected with compressed air source, the other end of the second appendix 42
Air inlet 201 with another venturi atomizer 20b in two venturi atomizers 20a, the 20b is connected, with
Throat's internal diameter of the connected venturi atomizer 20b of two appendix 42 is less than the venturi atomization being connected with the first appendix 41
Throat's internal diameter of shower nozzle 20a；
Second air boost pump 12, the second gas tank 13 and the second control valve 18b, the second air boost pump 12, the second gas tank
13 and second control valve 18b to be connected on the second appendix 42, and the entrance of the second air boost pump 12 is connected with compressed air source,
The outlet of the second air boost pump 12 is connected with the second gas tank 13, and the second air boost pump 12 carries out the gas of compressed air source
It is stored into the second gas tank 13 after high power (such as 4X) supercharging, the second control valve 18b is connected to the port of export of the second gas tank 13, second
Control valve 18b controls the conducting and shut-off of the second appendix 42, and the second control valve 18b is arranged to be repeatedly opened and cause with closing
The venturi atomizer 20b being connected with the second appendix 42 carries out pulse operation；
Fluid delivery pipe 37, the bottom of fluid delivery pipe 37 connects with the bottom of spray chamber 26, the top of fluid delivery pipe 37
The inlet port 202 respectively with two venturi atomizers 20a, the 20b is held to connect.
As shown in Fig. 2 venturi atomizer 20a, 20b that the present embodiment is used are that one kind makes two kinds of fluid high-effectives abundant
The special equipment of mixing, itself without moving component, when air-flow by one by gradually small greatly and then by small gradually big pipeline eight-legged essay
Venturi throat, flow velocity is increased when air-flow is through narrow, and pressure declines, and pressure differential is formed before and after making, when throat has one smaller
During the entrance of caliber, negative pressure is formed, cutting oil 36 is drawn in the spray chamber 26 to come up and from oil suction by fluid delivery pipe 37
Mouth 202 enters venturi atomizer 20a, 20b mixing, and mist of oil is formed under its venturi action of venturi atomizer
Grain, is injected into spray chamber 26 under being driven by compressed gas, forms fine mist of oil 25.
Throat internal diameter of the throat's internal diameter of venturi atomizer 20b less than venturi atomizer 20a in the present embodiment,
That is venturi throat internal diameter 20b<20a.Wherein, throat position is at the internal diameter minimum position corresponding to venturi atomizer,
As shown in the C in Fig. 2.
Further, first control valve 18a for magnetic valve, the system also includes：
Pressure sensor 19, pressure sensor 19 is used to detect the mist of oil pressure in spray chamber 26；
PLC 60, PLC 60 is connected with the first control valve 18a with the electric signal of pressure sensor 19 respectively, and PLC 60 is according to mist
Change the size of mist of oil pressure in room 26, control first controls the open and close of valve 18a.
The first air boost pump 5 is used to carry out compressed air low power (2X) supercharging in the present embodiment, to produce low power to increase
Pressure air.Spray chamber 26 is provided with pressure sensor 19, when pressure value is less than the upper limit for setting in spray chamber 26, is controlled by PLC 60
System opens the first control valve 18a makes venturi atomizer 20a keep continuous firing state, when pressure value is more than in spray chamber 26
During the upper limit of setting, by PLC 60 control close first control valve 18a venturi atomizer 20a is not worked.When interior cryoprobe
When having 30 outlet drain amounts less than air inflow, this function can control the pressure value of spray chamber 26, so as to ensure that spray chamber 26
With the minimum pressure differential of inlet end.
Further, second valve 18b is controlled for magnetic valve, PLC 60 is connected with the second control valve 18b electric signals, PLC 60
Control second controls valve 18b to be closed after a period of time is opened, and is opened after a period of time is closed, and so circulation makes the second control
Valve 18b is opened repeatedly and closing.For example, PLC 60 can by control second control valve 18b constantly electric and dead electricity, enter
And control second to control valve 18b to be constantly opened repeatedly and closing.
In other embodiments, the second control valve 18b can also be connected with a time relay (not shown), during by this
Between Control second control valve 18b open a period of time after close, close a period of time after open, so circulation make
Second control valve 18b is opened repeatedly and closing.Now, the time relay plays a part of a timing controller.
The second air boost pump 12 is used to carry out compressed air high power (4X) supercharging in the present embodiment, to produce multiplication high
Pressure air.The working condition of venturi atomizer 20b controls valve 18b circulations to beat by PLC 60 or time relay control second
Push And Release is closed, and this pulse operation mode can solve the problem that the insufficient problem of mist of oil amount and tolerance, is conducive to chip removal and more
Effective lubrication；For example, when the interior cold hole very little chin-deep of interior cryoprobe tool 30, the tolerance mist of oil of interior cryoprobe tool 30 outlet can be caused
Amount is reduced and air pressure declines, so be now accomplished by pressure differential higher to lift the oil mist concentration and air pressure of spray chamber 26, and
High power (4X) supercharging method of supplying can just reach such effect.
Second control valve 18b can be arranged to open for several seconds by PLC 60 or the time relay and several seconds close, with this
Sample is repeatedly opened with the mode closed to make venturi atomizer 20b carry out pulse operation, can so solve small-bore
There is the inadequate problem of mist of oil amount in interior cryoprobe tool, can be more favourable to chip removal with moment intensified pressure.
When cold hole is very big in interior cryoprobe tool 30, the second control valve 18b can be arranged to by PLC 60 or the time relay
Opening time is most long, and the shut-in time is set to minimum or zero, venturi atomizer 20b is transformed into continuous firing,
And coordinate the supply of venturi atomizer 20a guarantee of work oil gas together.
In the present embodiment, the first air boost pump 5 produces low power pressurized air, the first appendix 41 to correspond to low power supercharging
Gas circuit；Second air boost pump 12 produces high power pressurized air, the second appendix 42 to correspond to high power supercharging gas circuit；Venturi mist
Change the throat internal diameter of throat's internal diameter less than venturi atomizer 20a of shower nozzle 20b.High power is pressurized gas circuit primarily to increasing
The oil mist concentration of spray chamber 26, so throat of the throat's internal diameter of venturi atomizer 20b less than venturi atomizer 20a
Excessive pressure will not be increased to spray chamber 26 during internal diameter, more multiaction is to increase mist of oil, so also will not excessively influence mist
Change in room 26 and the pressure differential between low power supercharging gas circuit.
Further, the system also includes air inlet pipe 40, and one end of air inlet pipe 40 is connected with compressed air source, air inlet pipe 40
The other end be connected with the first appendix 41 and the second appendix 42 respectively, air inlet pipe 40 be provided with gas conveying switch 1, first
Appendix 41 is provided with magnetic valve 4, and magnetic valve 4 is located at the arrival end of the first air boost pump 5, and the second appendix 42 is provided with electricity
Magnet valve 11, magnetic valve 11 be located at the second air boost pump 12 arrival end, PLC 60 respectively with magnetic valve 4 and the telecommunications of magnetic valve 11
Number connection.
Wherein, gas conveying switch 1 can be manual ball valve, by manually opening before equipment work, and
Equipment has been at open mode when working.
Further, filter 2 is connected with air inlet pipe 40, filter 2 is located at the rear end of gas conveying switch 1；First
Filter 8 is connected with appendix 41, filter 8 is located at the port of export of the first air boost pump 5；Connected on second appendix 42
There is filter 15, filter 15 is located at the port of export of the second air boost pump 13.
Wherein, gas conveying switch 1, filter 2, magnetic valve 4, the first air boost pump 5, the first gas tank 6, filter 8,
First control valve 18a is consecutively connected to the venturi atomizer 20a in spray chamber 26 by the first appendix 41.Gas is conveyed
Switch 1, filter 2, magnetic valve 11, the second air boost pump 12, the second gas tank 13, the control of filter 15, second valve 18b pass through
Second appendix 42 is consecutively connected to the venturi atomizer 20b in spray chamber 26.
Further, the system also includes：
First bypass pipe 51, the first bypass pipe 51 is in parallel with the first appendix 41, one end and the compression of the first bypass pipe 51
Air-source is connected, and the other end of the first bypass pipe 51 is connected with the first gas tank 6, and the first bypass pipe 51 is provided with the first check valve
10；
Second bypass pipe 52, the second bypass pipe 52 is in parallel with the second appendix 42, one end and the compression of the second bypass pipe 52
Air-source is connected, and the other end of the second bypass pipe 52 is connected with the second gas tank 13, and the second bypass pipe 52 is provided with the second check valve
16。
Wherein, gas conveying switch 1, filter 2, check valve 10, the first gas tank 6 are connected in turn.Gas is conveyed
Switch 1, filter 2, check valve 16, the second gas tank 13 are connected in turn.When air boost pump 5,12 breaks down not work
When making, atmospheric compression air will enter gas tank 6,13 from check valve 10,16, after there is such case, will not also make processing
When occur without gas without oil condition, prevent from causing tool wear to accelerate or the loss such as breaking.
Further, spray chamber 26 is provided with oil mist outlet 260, and the system also includes：
Mist of oil delivery pipe 21, one end of mist of oil delivery pipe 21 is connected with oil mist outlet 260；
Mist of oil conveying switch 22, interior cold hollow spindle 29 and interior cryoprobe tool 30, mist of oil delivery pipe 21, mist of oil conveying switch
22nd, interior cold hollow spindle 29 and interior cryoprobe tool 30 are sequentially connected.Mist of oil 25 is from spray chamber 26 out by mist of oil delivery pipe 21, oil
Mist conveying switch 22, main shaft joint 28, interior cold hollow spindle 29 reach interior cryoprobe tool 30, and having cold hole in 30 by interior cryoprobe sprays
Machining area is mapped to, the effect of cooling and lubricating and chip removal is realized.
In the present embodiment, mist of oil conveying switch 22 can be pneumatic ball valve, and mist of oil conveying switch 22 connects with PLC60 electric signals
Connect, in process, mist of oil conveying switch 22 can be automatically controlled by PLC 60 and opened or closed, to realize the defeated of mist of oil 25
Send.
Further, dividing plate 27 is fixed with spray chamber 26, the middle part of dividing plate 27 offers multiple through its upper and lower surface
Through hole 270.In fine mist of oil 25 in spray chamber 26, there are part oil mist particles to be gathered into cutting oil droplet, in spray chamber 26
Uniform aperture is provided with dividing plate 27, the drop that mist of oil is formed can be collected in following fluid region by this hole.
In the present embodiment, fluid delivery pipe 37 is at least two, and at least two bottoms of fluid delivery pipe 37 are and mist
Change room 26 bottom connection, at least two tops of fluid delivery pipe 37 respectively with least two venturi atomizer
The inlet port 202 of 20a, 20b is connected, and flow control valve 17 is equipped with least two fluid delivery pipes 37.When interior cryoprobe tool
When 30 processing are not required to excessive mist of oil amount, can manually adjust flow control valve 17 to control every oil pump capacity of fluid delivery pipe 37
Size, reach the fuel-flow control of various modes, more accurately control and use oil mass, and effectively save and use oil mass, enter one
Step reduces cost.
Further, the system also includes fuel tank 38, oil pump 33 and multiple level sensor 31a, 31b, 31c, the plurality of
Level sensor 31a, 31b, 31c are arranged on inside spray chamber 26, and fuel tank 38 and oil pump 33 are connected to spray chamber by oil pipe 39
26, PLC 60 are connected with the plurality of level sensor 31a, 31b, 31c and the electric signal of oil pump 33 respectively, and PLC 60 is according to the plurality of
The liquid level position that level sensor 31a, 31b, 31c are sensed judges the amount of cutting oil 36 in spray chamber 26, and then control oil pump
33 open or shut down to be embodied as the automatic oiling of spray chamber 26.
Magnetic valve 34 and check valve 32, wherein fuel tank 38 and magnetic valve 34, oil pump 33, check valve are additionally provided with oil pipe 39
32 are connected to spray chamber 26 by oil pipe 39.PLC 60 is also connected with the electric signal of magnetic valve 34.Needing to be refueled to spray chamber 26
When, the control magnetic valves 34 of PLC 60 are opened and control oil pump 33 starts simultaneously.
Level sensor is three in the present embodiment, and three level sensors 31a, 31b, 31c are arranged in spray chamber 26
In close to bottom and close between dividing plate 27.Wherein, the position highest of liquid level sensor 31a, the position of liquid level sensor 31c is most
Low, the position of liquid level sensor 31b is between liquid level sensor 31a and liquid level sensor 31c.According to liquid level sensor 31a,
The liquid level position that 31b, 31c are sensed, PLC 60, the control oil pumps of PLC 60 are fed back to when sensor 31b receives liquid level signal
33 open automatic oiling.PLC 60 is fed back to when sensor 31a receives liquid level signal, 60 control oil pumps of PLC 33 stop adding
Oil.Illustrate that automatic oiling function breaks down, it is necessary to carry out shutdown treatment when sensor 31c receives liquid level signal.
The liquid level position that the present embodiment is sensed according to liquid level sensor 31a, 31b, 31c in spray chamber 26, works as spray chamber
Oil level opens magnetic valve 34 in low liquid level by system in 26, and oil pump 33 carries out automatic oil pumping；When in spray chamber 26 oil level in height
During liquid level, magnetic valve 34 is closed by system, oil pump 33 stops oil pumping.This function can realize equipment non-stop run.
The system is additionally provided with safety exhaust 7,14,23, safety exhaust 7,14,23 be separately mounted to the first gas tank 6,
The top of the second gas tank 13 and spray chamber 26.When the pressure in the first gas tank 6, the second gas tank 13 and spray chamber 26 exceedes limit value
When, safety exhaust 7,14,23 automatically opens up exhaust pressure relief, maintaining system safety.
In addition, pressure inductor 3 is also equipped with atmospheric compression air duct, when pressure inductor 3 is sensed less than pressure
Or when sensing that pressure is less than setting value, alarm is sent, remind staff to check source of the gas.Also divide on spray chamber 26 and fuel tank 38
Oil filler 24,35 is not provided with；Cutting oil 36 can be filled for fuel tank 38 by oil filler 35；Can in automatic oiling disabler
It is the filling cutting of spray chamber 26 oil 36 with temporarily by oil filler 24.
When the high-pressure pneumatic pulse micro lubricant mist supply system provided using the present embodiment carries out deep hole machining, knife
Cold hole is minimum in tool, because high power (4X) compressed air supercharging outlet side of this system can be pressurized out than low power (2X) compressed air
The pressure at gas end is much larger, and the at this moment meeting of spray chamber 26 and the venturi atomizer 20b inlet ends being pressurized using high power produce foot
Enough big pressure differentials, so that venturi atomizer 20b just has faster air velocity and bigger oil absorption, while again
Spray chamber 26 is pressurizeed, can thus be solved because of interior cryoprobe tool that 30 apertures are small can not spray enough tolerance, mist of oil amount
Problem.
The present embodiment provides low power (2X) supercharging and high power (4X) on the basis of Ordinary Compression air (0.5~0.8Mpa)
Supercharging mode carries out supply mist of oil, and high power (4X) takes the working method of pulsed, and such high power supercharging accessory low cost will not
Increase accessory cost when user buys.According to pneumatic pressure pulses principle, the compressed air pressure that moment increases can be spray chamber
It is interior that enough mist of oil supplies are provided, it is to provide effective during deep hole machining while increasing mist of oil pressure is conducive to chip removal
High pressure auxiliary lubricating system.In addition, the system is additionally provided with oily hypovolia alarm, automatic oiling function and safety exhaust unit
Deng.
[second embodiment]
As shown in figure 3, second embodiment of the invention provide high-pressure pneumatic pulse micro lubricant mist supply system with
Above-mentioned first embodiment is essentially identical, and difference is, in the present embodiment, fluid delivery pipe 37 is one, fluid delivery pipe
37 top is provided with least two branched pipes, at least two branched pipe respectively with least two venturi atomizer 20a,
The inlet port 202 of 20b is connected, and flow control valve 17 is equipped with least two branched pipe.Compare first embodiment, this implementation
Example can reduce the quantity of fluid delivery pipe 37, and structure is simpler.
Remaining structure and operation principle of the present embodiment are identical with first embodiment, repeat no more here.
Above-mentioned implementation method is inventive embodiment, is not intended to limit implementation and the interest field of invention, all foundations
Equivalence changes and modification that content described in the apllied protection domain of patent of the present invention is made, all should be included in of the invention special
In sharp scope.
Claims (10)
1. a kind of high-pressure pneumatic pulse micro lubricant mist supply system, it is characterised in that including：
Spray chamber (26), the spray chamber (26) is oily (36) built with cutting, and the inner chamber top of the spray chamber (26) is provided with least two
Individual venturi atomizer (20a, 20b), each venturi atomizer (20a, 20b) has air inlet (201), inlet port
And jet exit (203) (202)；
First appendix (41), one end of first appendix (41) is connected with compressed air source, first appendix (41)
One of venturi atomizer (20a's) in the other end and at least two venturi atomizer (20a, 20b) enters
Gas port (201) is connected；
First air boost pump (5), the first gas tank (6) and first control valve (18a), first air boost pump (5), this first
Gas tank (6) and first control valve (18a) are connected on first appendix (41), the entrance of first air boost pump (5)
It is connected with compressed air source, the outlet of first air boost pump (5) is connected with first gas tank (6), first supercharging air
Pump (5) is stored into first gas tank (6) after the gas of compressed air source is carried out into low power supercharging, first control valve (18a)
The port of export of first gas tank (6) is connected to, first control valve (18a) controls the conducting of first appendix (41) and closes
It is disconnected；
Second appendix (42), one end of second appendix (42) is connected with compressed air source, second appendix (42)
The air inlet of another venturi atomizer (20b) in the other end and at least two venturi atomizer (20a, 20b)
Mouthful (201) connection, throat's internal diameter of the venturi atomizer (20b) being connected with second appendix (42) less than with this first
Throat's internal diameter of the connected venturi atomizer (20a) of appendix (41)；
Second air boost pump (12), the second gas tank (13) and second control valve (18b), second air boost pump (12), should
Second gas tank (13) and second control valve (18b) are connected on second appendix (42), second air boost pump (12)
Entrance be connected with compressed air source, the outlet of second air boost pump (12) is connected with second gas tank (13), and this second
Air boost pump (12) is stored into second gas tank (13) after the gas of compressed air source is carried out into high power supercharging, second control
Valve (18b) processed is connected to the port of export of second gas tank (13), and second control valve (18b) controls second appendix (42)
Conducting and shut-off, and second control valve (18b) is arranged to be repeatedly opened and closing with second appendix (42) so that be connected
Venturi atomizer (20b) carry out pulse operation；
Fluid delivery pipe (37), the bottom of the fluid delivery pipe (37) connects with the bottom of the spray chamber (26), fluid conveying
The top for managing (37) connects with the inlet port (202) of at least two venturi atomizer (20a, 20b) respectively.
2. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, it is characterised in that this first
Control valve (18a) is magnetic valve, and the system also includes：
Pressure sensor (19), the pressure sensor (19) is for detecting the mist of oil pressure in the spray chamber (26)；
PLC (60), the PLC (60) are connected with first control valve (18a) and pressure sensor (19) electric signal respectively, should
PLC (60) controls the open and close of first control valve (18a) according to the size of the interior mist of oil pressure of spray chamber (26).
3. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 2, it is characterised in that this second
Control valve (18b) is magnetic valve, and the PLC (60) second controls valve (18b) electric signal to be connected with this, the PLC (60) control this
Two controls valve (18b) are closed after a period of time is opened, and are opened after a period of time is closed, and so circulation makes the second control valve
(18b) is opened repeatedly and closing.
4. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 2, it is characterised in that the system
Also include air inlet pipe (40), one end of the air inlet pipe (40) is connected with compressed air source, the other end difference of the air inlet pipe (40)
It is connected with first appendix (41) and second appendix (42), the air inlet pipe (40) is provided with gas conveying switch (1), should
First appendix (41) is provided with magnetic valve (4), and, positioned at the arrival end of first air boost pump (5), this for the magnetic valve (4)
Two appendixs (42) are provided with magnetic valve (11), and the magnetic valve (11), should positioned at the arrival end of second air boost pump (12)
PLC (60) is connected with the magnetic valve (4) and magnetic valve (11) electric signal respectively.
5. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 2, it is characterised in that the system
Also include fuel tank (38), oil pump (33) and multiple level sensor (31a, 31b, 31c), the plurality of level sensor (31a,
31b, 31c) spray chamber (26) inside is arranged on, the fuel tank (38) and the oil pump (33) are connected to the atomization by oil pipe (39)
Room (26), the PLC (60) is connected with the plurality of level sensor (31a, 31b, 31c) and oil pump (33) electric signal respectively, should
PLC (60) judges spray chamber (26) inscribe according to the liquid level position that the plurality of level sensor (31a, 31b, 31c) is sensed
The amount of oily (36) is cut, and then controls the oil pump (33) to open or shut down to be embodied as spray chamber (26) automatic oiling.
6. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, it is characterised in that this second
Control valve (18b) is connected with a time relay, and the time relay controls second control valve (18b) opening a period of time
After close, close a period of time after open, so circulation make this second control valve (18b) be opened repeatedly and closing.
7. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, it is characterised in that the atomization
Room (26) is provided with oil mist outlet (260), and the system also includes：
Mist of oil delivery pipe (21), one end of the mist of oil delivery pipe (21) is connected with the oil mist outlet (260)；
Mist of oil conveying switch (22), interior cold hollow spindle (29) and interior cryoprobe tool (30), the mist of oil delivery pipe (21), the mist of oil are defeated
Switch (22), the interior cold hollow spindle (29) and interior cryoprobe tool (30) is sent to be sequentially connected.
8. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, it is characterised in that the system
Also include：
First bypass pipe (51), first bypass pipe (51) is in parallel with first appendix (41), first bypass pipe (51)
One end is connected with compressed air source, and the other end of first bypass pipe (51) is connected with first gas tank (6), first bypass pipe
(51) it is provided with the first check valve (10)；
Second bypass pipe (52), second bypass pipe (52) is in parallel with second appendix (42), second bypass pipe (52)
One end is connected with compressed air source, and the other end of second bypass pipe (52) is connected with second gas tank (13), second bypass
Pipe (52) is provided with the second check valve (16).
9. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, it is characterised in that the fluid
Delivery pipe (37) is at least two, and at least two bottoms of fluid delivery pipe (37) connect with the bottom of the spray chamber (26)
It is logical, at least two tops of fluid delivery pipe (37) respectively with the suction of at least two venturi atomizer (20a, 20b)
Hydraulic fluid port (202) is connected, and flow control valve (17) is equipped with least two fluid delivery pipes (37).
10. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, it is characterised in that the oil
Liquid delivery pipe (37) is one, and the top of the fluid delivery pipe (37) is provided with least two branched pipes, at least two branched pipe
Connected with the inlet port (202) of at least two venturi atomizer (20a, 20b) respectively, at least two branched pipe
It is provided with flow control valve (17).
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| CN201710229307.2A CN106838590B (en) | 2017-04-10 | 2017-04-10 | High-pressure pneumatic pulse micro lubricant mist supply system |
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| CN201710229307.2A CN106838590B (en) | 2017-04-10 | 2017-04-10 | High-pressure pneumatic pulse micro lubricant mist supply system |
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| CN110739424A (en) * | 2019-10-28 | 2020-01-31 | 广州小鹏汽车科技有限公司 | Thermal runaway monitoring method for battery boxes and battery boxes |
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| CN111239334A (en) * | 2020-01-08 | 2020-06-05 | 中国辐射防护研究院 | Pulse type generation system and method for radioactive inert gas tracer |
| CN114263587A (en) * | 2021-12-29 | 2022-04-01 | 山东中大机械股份有限公司 | Pneumatic oil pump matched with novel tensioning machine |
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