CN106838590B - 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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- CN106838590B CN106838590B CN201710229307.2A CN201710229307A CN106838590B CN 106838590 B CN106838590 B CN 106838590B CN 201710229307 A CN201710229307 A CN 201710229307A CN 106838590 B CN106838590 B CN 106838590B
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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)
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Abstract
The invention discloses a kind of high-pressure pneumatic pulse micro lubricant mist supply systems, 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 on the first appendix；Second appendix is connected with another venturi atomizer, and the second air boost pump and the second control valve are connected on the second appendix；First air boost pump generates low power pressurized air, and the second air boost pump generates high power pressurized air, and the second control valve is 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 pressurization on the basis of Ordinary Compression air and high power supercharging mode carries out supply mist of oil, and high power takes pulse operation mode to be capable of providing enough mist of oils, is conducive to the lubrication and chip removal of deep hole machining.
Description
Technical field
The present invention relates to the auxiliary systems 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 technique
Deep hole typically refers to the hole that aspect ratio is greater than 6 times, but most of aspect ratios are above in the actual processing process
100 times, such as the oil har opening of engine, the axial oilhole of axis, hollow spindle hole and hydraulic valve opening.Deep hole machining compares shallow bore hole
There are many difficult points, such as the too long diameter of channel of chip removal are smaller, chip removal is difficult for processing, can not chip removal in time will lead to built-up edge
It generates and can abrade workpiece and easily damage cutter, while the difficult cutter that radiates easily aggravates cutter because temperature in borehole is excessively high
The rate of wear, the surface accuracy for reducing workpiece.Tool in Cutting situation can not be can be visually seen during deep hole machining, it can only be with work
It listens cutting sound, observation chip, hand to touch vibration and workpiece temperature as experience, observe instrument (oil pressure gauge and ammeter) and judge to cut
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 be also near dry cutting, refer to compressed gas is mixed with extremely micro cutting oil 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.In general, MQL spraying generation method, is in venturi nozzle part by air
Made of pressure dispels oil；And spraying ability is mainly related with the pressure difference of venturi nozzle inlet and outlet.
If using common MQL device when carrying out deep hole machining, when venturi atomizer internal diameter is constant, in cutter
When cold hole is again minimum, because cutter inner cooling mouth goes out, bore is small, and the mist of oil amount that venturi atomizer sprays enters nothing after spray chamber
Method is quickly discharged from cutter inner cooling mouth, so the pressure difference that will lead to venturi atomizer inlet end and spray chamber becomes smaller, and
Make slack-off by the compressed air flow velocity in venturi atomizer, oil absorption capacity becomes smaller, and oil mist concentration reduces in spray chamber, from
And the mist of oil amount of interior cryoprobe tool outlet is caused to become smaller, so effectively lubricating can not be carried out.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of high pressure gas arteries
Type micro lubricant mist supply system is rushed, low power compressed air supercharge and high power pulse of compressed air formula supercharge are mutual
Cooperation carries out micro lubricating and assists deep hole machining, is conducive to the lubrication and chip removal during deep hole machining.
The purpose of the invention is achieved by the following technical solution:
The present invention provides a kind of high-pressure pneumatic pulse micro lubricant mist supply system, comprising:
Spray chamber, the spray chamber are provided with cutting oil, and the inner cavity top of the spray chamber is atomized equipped at least two venturi
Spray head, each venturi atomizer have air inlet, inlet port and jet exit；
One end of first appendix, first appendix is connect with compressed air source, the other end of first appendix with
The air inlet of one of venturi atomizer in at least two venturi atomizer is connected to；
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 connect with compressed air source, first sky
The outlet of gas booster pump is connect with first gas tank, which carries out low power pressurization for the gas of compressed air source
After be stored into first gas tank, which is connected to the outlet end of first gas tank, first control valve control should
The conducting and shutdown of first appendix；
One end of second appendix, second appendix is connect with compressed air source, the other end of second appendix with
The air inlet of another venturi atomizer in at least two venturi atomizer is connected to, with the second appendix phase
Throat's internal diameter of venturi atomizer even is less than the throat's internal diameter for 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 connect with compressed air source, second sky
The outlet of gas booster pump is connect with second gas tank, which carries out high power pressurization for the gas of compressed air source
After be stored into second gas tank, which is connected to the outlet end of second gas tank, second control valve control should
The conducting and shutdown of second appendix, and second control valve is arranged to be repeatedly opened and close so that with the second appendix phase
Venturi atomizer even carries out pulse operation；
Oil liquid delivery pipe, the bottom end of the oil liquid delivery pipe are connected to the bottom of the spray chamber, the top of the oil liquid delivery pipe
It is connected to respectively with the inlet port of at least two venturi atomizer.
Further, which is solenoid valve, the system further include:
Pressure sensor, the pressure sensor is for detecting the indoor mist of oil pressure of the atomization；
PLC, the PLC are connect with 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 first control valve.
Further, which is solenoid valve, which connect with the second control valve electric signal, PLC control
Second control valve is closed after opening a period of time, is opened after closing a period of time, and so circulation makes second control valve
It is opened repeatedly and closes.
Further, which further includes air inlet pipe, and one end of the air inlet pipe is connect with compressed air source, the air inlet pipe
The other end is connect with first appendix and second appendix respectively, which is equipped with gas conveying switch, this first
Appendix is equipped with the first solenoid valve, which is located at the arrival end of first air boost pump, second appendix
Be equipped with second solenoid valve, which is located at the arrival end of second air boost pump, the PLC respectively with two electricity
The connection of magnet valve electric signal.
Further, which further includes fuel tank, oil pump and multiple level sensors, and multiple level sensor is mounted 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 multiple level sensor
It is connected with the oil pump electric signal, which judges the spray chamber inscribe according to the liquid level position that multiple level sensor senses
The amount of oil is cut, and then controls the oil pump and opens or shut down to be embodied as the spray chamber automatic oiling.
Further, which is connected with a time relay, which controls second control valve
Close after opening a period of time, opened after closing a period of time, so circulation make second control valve be opened repeatedly with
It closes.
Further, which is equipped with oil mist outlet, the system further include:
Mist of oil delivery pipe, one end of the mist of oil delivery pipe are connect 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 switch, this is interior
Cold hollow spindle and the interior cryoprobe tool are sequentially connected.
Further, the system further include:
First bypass pipe, first bypass pipe is in parallel with first appendix, and one end of first bypass pipe and compression are empty
Gas source connection, the other end of first bypass pipe are connect with first gas tank, which is equipped with the first check valve；
Second bypass pipe, second bypass pipe is in parallel with second appendix, and one end of second bypass pipe and compression are empty
Gas source connection, the other end of second bypass pipe are connect with second gas tank, which is equipped with second one-way valve.
Further, which is at least two, the bottom end of at least two oil liquid delivery pipes with the atomization
The bottom of room is connected to, the top of at least two oil liquid delivery pipes inlet port at least two venturi atomizer respectively
It is connected to, is equipped with flow control valve at least two oil liquid delivery pipes.
Further, which is one, and the top of the oil liquid delivery pipe is equipped at least two branched pipes, this is extremely
Few two branched pipes are connected to the inlet port of at least two venturi atomizer respectively, are all provided at least two branched pipe
There is flow control valve.
The beneficial effects of the invention are that: a kind of Special lubricating equipment for deep hole machining is provided, a set of high pressure is equipped with
Pulsed oil fog generating apparatus, higher pressure difference can supplement mist of oil supply, guarantee enough mist of oil amount supplies, solve
During deep hole machining common MQL device can not 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.
Detailed description of the invention
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 the partial structural diagram of a 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 conveys switch 1；Filter 2,8,15；Pressure inductor 3；Solenoid 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 conveys switch 22；Oil filler 24,35；Mist of oil
25；Spray chamber 26；Partition 27；Main shaft connector 28；Interior cold hollow spindle 29；Interior cryoprobe tool 30；Level sensor 31；Oil pump 33；
Cutting oil 36；Oil liquid 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 described in further detail in the following with reference to the drawings and specific embodiments, 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 provides, is fitted
Being lubricated cooling and chip removal, the system together in the interior cryoprobe tool to deep hole machining includes:
Spray chamber 26, spray chamber 26 are provided with cutting oil 36, and the inner cavity top of spray chamber 26 is equipped at least two venturi
Atomizer 20a, 20b.In the present embodiment, by taking two venturi atomizers 20a, 20b as an example, however, the present invention is not limited thereto.
Incorporated by reference to Fig. 2, each venturi atomizer 20a, 20b have air inlet 201, inlet port 202 and jet exit 203；
One end of first appendix 41, the first appendix 41 is connect with compressed air source, the other end of the first appendix 41
It is connected to the air inlet 201 of one of venturi atomizer 20a in two venturi atomizers 20a, the 20b；
First air boost pump 5, the first gas tank 6 and the first control valve 18a, the first air boost pump 5,6 and of the first gas tank
First control valve 18a is connected on the first appendix 41, and the entrance of the first air boost pump 5 is connect with compressed air source, and first
The outlet of air boost pump 5 is connect 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 outlet end of the first gas tank 6, the first control valve 18a
Control the conducting and shutdown of the first appendix 41；
One end of second appendix 42, the second appendix 42 is connect with compressed air source, the other end of the second appendix 42
It is connected to the air inlet 201 of another venturi atomizer 20b in two venturi atomizers 20a, the 20b, with
Throat's internal diameter of the connected venturi atomizer 20b of two appendixs 42 is less than the venturi atomization being connected with the first appendix 41
Throat's internal diameter of spray head 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 be connected on the second appendix 42, the entrance of the second air boost pump 12 is connect with compressed air source,
The outlet of second air boost pump 12 is connect with the second gas tank 13, and the second air boost pump 12 carries out the gas of compressed air source
It being stored into the second gas tank 13 after high power (such as 4X) pressurization, the second control valve 18b is connected to the outlet end of the second gas tank 13, and second
Control valve 18b control the second appendix 42 conducting and shutdown, and the second control valve 18b be arranged to be repeatedly opened and close so that
The venturi atomizer 20b being connected with the second appendix 42 carries out pulse operation；
The bottom end of oil liquid delivery pipe 37, oil liquid delivery pipe 37 is connected to the bottom of spray chamber 26, the top of oil liquid delivery pipe 37
End is connected to the inlet port 202 of two venturi atomizers 20a, the 20b respectively.
As shown in Fig. 2, venturi atomizer 20a, 20b that the present embodiment uses are that one kind keeps two kinds of fluid high-effectives abundant
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 eight-legged essay
Venturi throat, air-flow are increased through flow velocity when narrow, and pressure decline makes front and back form pressure difference, when throat have it is one smaller
When the entrance of caliber, negative pressure is formed, cutting oil 36 is come up and by the absorption of oil liquid delivery pipe 37 from oil suction out of spray chamber 26
Mouth 202 enters venturi atomizer 20a, 20b and mixes, and mist of oil is formed under the venturi action of venturi atomizer
Grain, is driven down by compressed gas and is injected into spray chamber 26, form fine mist of oil 25.
Throat's internal diameter of venturi atomizer 20b is less than throat's internal diameter of venturi atomizer 20a in the present embodiment,
That is venturi throat internal diameter 20b < 20a.Wherein, throat position be corresponding to the internal diameter minimum position of venturi atomizer at,
As shown in the C in Fig. 2.
Further, the first control valve 18a is solenoid valve, the system further include:
Pressure sensor 19, pressure sensor 19 are used to detect the mist of oil pressure in spray chamber 26；
PLC 60, PLC 60 is connect with the first control valve 18a and 19 electric signal of pressure sensor respectively, and PLC 60 is according to mist
Change the size of mist of oil pressure in room 26, controls the open and close of the first control valve 18a.
The first air boost pump 5 is used to carry out compressed air low power (2X) pressurization in the present embodiment, to generate low power increasing
Press air.Spray chamber 26 is equipped with pressure sensor 19, when pressure value is less than the upper limit of setting in spray chamber 26, is controlled by PLC 60
System, which opens the first control valve 18a, makes venturi atomizer 20a continue working state, when pressure value is greater than in spray chamber 26
When the upper limit of setting, controlling the first control valve 18a of closing by PLC 60 makes venturi atomizer 20a not work.When interior cryoprobe
When having 30 outlet drain amounts less than air inflow, this function can control the pressure value of spray chamber 26, to ensure that spray chamber 26
With the minimum pressure differential of inlet end.
Further, the second control valve 18b is solenoid valve, and PLC 60 is connect with the second control valve 18b electric signal, PLC 60
It controls the second control valve 18b to close after opening a period of time, be opened after closing a period of time, so circulation makes the second control
Valve 18b is opened repeatedly and closes.For example, PLC 60 can by control the second control valve 18b constantly electric and power loss, into
And it controls the second control valve 18b and is constantly opened repeatedly and closes.
In other embodiments, the second control valve 18b can also be connected with a time relay (not shown), when by this
Between relay control the second control valve 18b and closed after opening a period of time, opened after closing a period of time, such recycle makes
Second control valve 18b is opened repeatedly and closes.At this point, the time relay plays the role of a timing controller.
The second air boost pump 12 is used to carry out compressed air high power (4X) pressurization in the present embodiment, to generate high multiplication
Press air.The working condition of venturi atomizer 20b controls the second control valve 18b circulation by PLC 60 or the time relay and beats
Push And Release closes, and this pulse operation mode is able to solve the problem of mist of oil amount and tolerance insufficient supply, is conducive to chip removal and more
Effective lubrication；For example, will lead to the tolerance mist of oil of interior 30 outlet of cryoprobe tool when the interior cold hole very little chin-deep of interior cryoprobe tool 30
Amount reduces and air pressure decline, so need higher pressure difference just at this time to promote oil mist concentration and the air pressure of spray chamber 26, and
High power (4X) pressurization method of supplying can 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 the mode with closing to make venturi atomizer 20b carry out pulse operation, can solve small-bore in this way
There is the inadequate problem of mist of oil amount in interior cryoprobe tool, can be more advantageous to chip removal with moment intensified pressure.
When hole cold in interior cryoprobe tool 30 is very big, the second control valve 18b can be arranged to by PLC 60 or the time relay
Opening time is longest, and the shut-in time is set as minimum or zero, venturi atomizer 20b can in this way be transformed into and continues working,
And cooperate the supply of venturi atomizer 20a guarantee of work oil gas together.
In the present embodiment, the first air boost pump 5 generates low power pressurized air, and the first appendix 41 corresponds to low power pressurization
Gas circuit；Second air boost pump 12 generates high power pressurized air, and the second appendix 42 corresponds to high power pressurization gas circuit；Venturi mist
The throat's internal diameter for changing spray head 20b is less than throat's internal diameter of venturi atomizer 20a.High power is pressurized gas circuit primarily to increasing
The oil mist concentration of spray chamber 26, so throat's internal diameter of venturi atomizer 20b is less than the throat of venturi atomizer 20a
Excessive pressure will not be increased when internal diameter to spray chamber 26, more multiaction only increases mist of oil, so mist will not excessively be influenced
Change the pressure difference in room 26 between low power pressurization gas circuit.
Further, which further includes air inlet pipe 40, and one end of air inlet pipe 40 is connect with compressed air source, air inlet pipe 40
The other end connect respectively with the first appendix 41 and the second appendix 42, air inlet pipe 40 be equipped with gas convey switch 1, first
Appendix 41 is equipped with the first solenoid valve 4, and the first solenoid valve 4 is located at the arrival end of the first air boost pump 5, the second appendix 42
It is equipped with second solenoid valve 11, second solenoid valve 11 is located at the arrival end of the second air boost pump 12, and PLC 60 is respectively with first
Solenoid valve 4 is connected with 11 electric signal of second solenoid valve.
Wherein, gas conveying switch 1 can be manual ball valve, by manually opening before equipment work, and
Equipment has been at opening state when working.
Further, filter 2 is connected in air inlet pipe 40, filter 2 is located at the rear end of gas conveying switch 1；First
Filter 8 is connected on appendix 41, filter 8 is located at the outlet end of the first air boost pump 5；It is connected on second appendix 42
There is filter 15, filter 15 is located at the outlet end of the second air boost pump 13.
Wherein, gas conveying switch 1, filter 2, the first solenoid valve 4, the first air boost pump 5, the first gas tank 6, filtering
Device 8, the first control valve 18a are consecutively connected to the venturi atomizer 20a in spray chamber 26 by the first appendix 41.Gas
Switch 1, filter 2, second solenoid valve 11, the second air boost pump 12, the second gas tank 13, filter 15, second is conveyed to control
Valve 18b is consecutively connected to the venturi atomizer 20b in spray chamber 26 by the second appendix 42.
Further, the system further include:
First bypass pipe 51, the first bypass pipe 51 is in parallel with the first appendix 41, one end of the first bypass pipe 51 and compression
Air-source connection, the other end of the first bypass pipe 51 are connect with the first gas tank 6, and the first bypass pipe 51 is equipped 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 of the second bypass pipe 52 and compression
Air-source connection, the other end of the second bypass pipe 52 are connect with the second gas tank 13, and the second bypass pipe 52 is equipped with second one-way valve
16。
Wherein, gas conveying switch 1, filter 2, check valve 10, the first gas tank 6 are connected in turn.Gas conveying
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 will not make to process from check valve 10,16 into gas tank 6,13 after there is such case
When occur preventing from causing without oil condition without gas tool wear to accelerate or the losses such as breaking.
Further, spray chamber 26 is equipped with oil mist outlet 260, the system further include:
One end of mist of oil delivery pipe 21, mist of oil delivery pipe 21 is connect with oil mist outlet 260；
Mist of oil conveys switch 22, interior cold hollow spindle 29 and interior cryoprobe tool 30, mist of oil delivery pipe 21, mist of oil conveying switch
22, interior cold hollow spindle 29 and interior cryoprobe tool 30 are sequentially connected.Mist of oil 25 comes out from spray chamber 26 by mist of oil delivery pipe 21, oil
Mist conveying switch 22, main shaft connector 28, interior cold hollow spindle 29 reach interior cryoprobe tool 30, are sprayed by cold hole in interior cryoprobe tool 30
It is mapped to machining area, realizes the effect of cooling and lubricating and chip removal.
In the present embodiment, mist of oil conveying switch 22 can be pneumatic ball valve, and mist of oil conveys switch 22 and 60 electric signal of PLC
Connection can be automatically controlled mist of oil conveying switch 22 by PLC 60 and opened or closed, to realize mist of oil 25 in process
Conveying.
Further, partition 27 is fixed in spray chamber 26, the middle part of partition 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 that can be gathered into cutting oil droplet, in spray chamber 26
Uniform aperture is provided on partition 27, the drop that mist of oil is formed can be collected by this hole in following oil liquid region.
In the present embodiment, oil liquid delivery pipe 37 is at least two, and the bottom end of at least two oil liquid delivery pipes 37 is and mist
Change room 26 bottom connection, the top of at least two oil liquid delivery pipes 37 respectively at least two venturi atomizer
The inlet port 202 of 20a, 20b are connected to, and are equipped with flow control valve 17 at least two oil liquid delivery pipes 37.When interior cryoprobe has
When 30 processing are not required to excessive mist of oil amount, flow control valve 17 can be manually adjusted to control every 37 oil pump capacity of oil liquid delivery pipe
Size, reach the fuel-flow control of various modes, it is more accurate to control with oil mass, and effectively save with oil mass, into one
Step reduces costs.
Further, which further includes fuel tank 38, oil pump 33 and multiple level sensor 31a, 31b, 31c, multiple
Level sensor 31a, 31b, 31c are mounted on inside spray chamber 26, and fuel tank 38 and oil pump 33 pass through oil pipe 39 and be connected to spray chamber
26, PLC 60 connect with multiple level sensor 31a, 31b, 31c and 33 electric signal of oil pump respectively, and PLC 60 is according to multiple
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 26 automatic oiling of spray chamber.
Third solenoid valve 34 and check valve 32 are additionally provided in oil pipe 39, wherein fuel tank 38 and third solenoid valve 34, oil pump
33, check valve 32 is connected to spray chamber 26 by oil pipe 39.PLC 60 is also connect with 34 electric signal of third solenoid valve.It is needing to give
When spray chamber 26 refuels, PLC 60 controls the opening of third solenoid valve 34 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 partition 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 feeds back to PLC 60,60 control oil pump of PLC 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 pump 33 of PLC stops adding
Oil.Illustrate that automatic oiling function breaks down when sensor 31c receives liquid level signal, needs to carry out shutdown processing.
The present embodiment works as spray chamber according to the liquid level position that liquid level sensor 31a, 31b, 31c are sensed in spray chamber 26
Oil level opens third solenoid valve 34 by system, oil pump 33 carries out automatic oil pumping in low liquid level in 26；When oil level in spray chamber 26
In high liquid level, third solenoid 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 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 is more than limit value
When, safety exhaust 7,14,23 automatically opens exhaust pressure relief, maintaining system safety.
In addition, pressure inductor 3 is also equipped on atmospheric compression air pipeline, when pressure inductor 3 incudes less than pressure
Or when sensing pressure lower than setting value, alarm is issued, staff is reminded to check gas source.Also divide on spray chamber 26 and fuel tank 38
It She You not oil filler 24,35；It can be the filling cutting of fuel tank 38 oil 36 by oil filler 35；It can in automatic oiling disabler
To be the filling cutting of spray chamber 26 oil 36 temporarily by oil filler 24.
When carrying out deep hole machining using high-pressure pneumatic pulse micro lubricant mist supply system provided in this embodiment, knife
Cold Kong Ji little in having, since high power (4X) the compressed air pressurization outlet side of this system can be pressurized out than low power (2X) compressed air
The pressure at gas end is much larger, at this moment 26 meeting of spray chamber and the venturi atomizer 20b inlet end generation foot being pressurized using high power
Enough big pressure differences, so that venturi atomizer 20b just has faster air velocity and bigger oil absorption capacity, while again
It is pressurizeed, is thus can solve because 30 apertures are small cannot spray enough tolerance, mist of oil amount for interior cryoprobe tool to spray chamber 26
The problem of.
The present embodiment provides low power (2X) pressurization 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, such high power pressurization accessory is at low cost will not
Increase accessory cost when user's purchase.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, while increasing mist of oil pressure and being conducive to chip removal, it is effective to be provided during deep hole machining
High pressure auxiliary lubricating system.In addition, this 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, the difference is that, in the present embodiment, oil liquid delivery pipe 37 is one, oil liquid delivery pipe
37 top be equipped at least two branched pipes, at least two branched pipe respectively at least two venturi atomizer 20a,
The inlet port 202 of 20b is connected to, and is equipped with flow control valve 17 at least two branched pipe.Compare first embodiment, this implementation
Example can reduce the quantity of oil liquid delivery pipe 37, and structure is simpler.
Remaining structure and working principle of the present embodiment are identical with the first embodiment, and which is not described herein again.
Above embodiment is the embodiment invented, and is not intended to limit the implementation and interest field of invention, all foundations
The equivalence changes and modification that content described in the applied protection scope of the invention patent is made should all be included in of the invention special
In sharp range.
Claims (10)
1. a kind of high-pressure pneumatic pulse micro lubricant mist supply system characterized by comprising
Spray chamber (26), the spray chamber (26) are provided with cutting oil (36), and the inner cavity top of the spray chamber (26) is equipped at least two
A venturi atomizer (20a, 20b), each venturi atomizer (20a, 20b) have air inlet (201), inlet port
(202) and jet exit (203)；
One end of first appendix (41), first appendix (41) is connect with compressed air source, first appendix (41)
One of venturi atomizer (20a) in the other end and at least two venturi atomizer (20a, 20b) into
Port (201) connection；
First air boost pump (5), the first gas tank (6) and the 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 connect with compressed air source, the outlet of first air boost pump (5) is connect 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 low power pressurization, first control valve (18a)
It is connected to the outlet end of first gas tank (6), which controls conducting and the pass of first appendix (41)
It is disconnected；
One end of second appendix (42), second appendix (42) is connect 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 the second control valve (18b), second air boost pump (12) are somebody's turn to do
Second gas tank (13) and second control valve (18b) are connected on second appendix (42), second air boost pump (12)
Entrance connect with compressed air source, the outlet of second air boost pump (12) is connect with second gas tank (13), this second
Air boost pump (12) is stored into second gas tank (13) after the gas of compressed air source is carried out high power pressurization, second control
Valve (18b) processed is connected to the outlet end of second gas tank (13), which controls second appendix (42)
Conducting and shutdown, and second control valve (18b) is arranged to be repeatedly opened and close so that being connected with second appendix (42)
Venturi atomizer (20b) carry out pulse operation；
Oil liquid delivery pipe (37), the bottom end of the oil liquid delivery pipe (37) are connected to the bottom of the spray chamber (26), oil liquid conveying
The top of pipe (37) is connected to 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, which is characterized in that this first
Control valve (18a) is solenoid valve, the system further include:
Pressure sensor (19), the pressure sensor (19) are used to detect the mist of oil pressure in the spray chamber (26)；
PLC (60), the PLC (60) are connect 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, which is characterized in that this second
Control valve (18b) is solenoid valve, which connect with the second control valve (18b) electric signal, the PLC (60) control this
Two control valves (18b) are closed after opening a period of time, are opened after closing a period of time, and so circulation makes second control valve
(18b) is opened repeatedly and closes.
4. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 2, which is characterized in that the system
It further include air inlet pipe (40), one end of the air inlet pipe (40) is connect with compressed air source, the other end difference of the air inlet pipe (40)
It is connect with first appendix (41) and second appendix (42), which is equipped with gas conveying switch (1), should
First appendix (41) is equipped with the first solenoid valve (4), which is located at entering for the first air boost pump (5)
Mouth end, second appendix (42) are equipped with second solenoid valve (11), which is located at second supercharging air
The arrival end of (12) is pumped, which connect with first solenoid valve (4) and second solenoid valve (11) electric signal respectively.
5. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 2, which is characterized in that the system
It further include fuel tank (38), oil pump (33) and multiple level sensors (31a, 31b, 31c), multiple level sensor (31a,
31b, 31c) it is mounted on the spray chamber (26) inside, the fuel tank (38) and the oil pump (33) pass through oil pipe (39) and are connected to the atomization
Room (26), the PLC (60) are connect with multiple 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 multiple level sensor (31a, 31b, 31c) senses
The amount of oily (36) is cut, and then controls the oil pump (33) and opens 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, which is characterized in that this second
Control valve (18b) is connected with a time relay, which controls second control valve (18b) and opening a period of time
After close, opened after closing a period of time, so circulation so that second control valve (18b) is opened repeatedly and is closed.
7. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, which is characterized in that the atomization
Room (26) is equipped with oil mist outlet (260), the system further include:
Mist of oil delivery pipe (21), one end of the mist of oil delivery pipe (21) are connect 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 the interior cryoprobe tool (30) is sent to be sequentially connected.
8. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, which is characterized in that the system
Further include:
First bypass pipe (51), first bypass pipe (51) is in parallel with the first appendix (41), first bypass pipe (51)
One end is connect with compressed air source, and the other end of first bypass pipe (51) is connect with first gas tank (6), first bypass pipe
(51) the first check valve (10) are equipped with；
Second bypass pipe (52), second bypass pipe (52) is in parallel with the second appendix (42), second bypass pipe (52)
One end is connect with compressed air source, and the other end of second bypass pipe (52) is connect with second gas tank (13), second bypass
It manages (52) and is equipped with second one-way valve (16).
9. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, which is characterized in that the oil liquid
Delivery pipe (37) is at least two, and the bottom end of at least two oil liquid delivery pipes (37) connects with the bottom of the spray chamber (26)
It is logical, the suction at least two venturi atomizer (20a, 20b) respectively of the top of at least two oil liquid delivery pipes (37)
Hydraulic fluid port (202) is connected to, and is equipped with flow control valve (17) at least two oil liquid delivery pipes (37).
10. high-pressure pneumatic pulse micro lubricant mist supply system according to claim 1, which is characterized in that the oil
Liquid delivery pipe (37) is one, and the top of the oil liquid delivery pipe (37) is equipped at least two branched pipes, at least two branched pipe
It is connected to respectively with the inlet port (202) of at least two venturi atomizer (20a, 20b), at least two branched pipe
Equipped with flow control valve (17).
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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 |
| CN111022899B (en) * | 2019-11-13 | 2021-07-30 | 汇专科技集团股份有限公司 | Micro-lubricating oil mist supply system |
| CN111239334B (en) * | 2020-01-08 | 2022-10-21 | 中国辐射防护研究院 | Pulse type generation system and method for radioactive inert gas tracer |
| CN111594738A (en) * | 2020-05-28 | 2020-08-28 | 新兴铸管股份有限公司 | Regulating valve oil mist lubricating device |
| CN114263587B (en) * | 2021-12-29 | 2024-03-26 | 山东中大机械股份有限公司 | Pneumatic oil pump matched with novel stretching machine |
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