CN202572162U - Air hood type micro-lubricating supply device - Google Patents
Air hood type micro-lubricating supply device Download PDFInfo
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- CN202572162U CN202572162U CN 201220222932 CN201220222932U CN202572162U CN 202572162 U CN202572162 U CN 202572162U CN 201220222932 CN201220222932 CN 201220222932 CN 201220222932 U CN201220222932 U CN 201220222932U CN 202572162 U CN202572162 U CN 202572162U
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Abstract
The utility model relates to a gas hood type minimal quantity lubrication feeding device, it adds the nanometer solid particle and makes the emollient of minimal quantity lubrication grinding in the degradable grinding fluid, becomes to have the pulse liquid drop that fixed pressure, pulse frequency are variable, the liquid drop diameter is unchangeable with emollient by the minimal quantity feeding device, spouts the grinding district with the efflux form under the air isolation layer effect that high-pressure gas produced. The lubricating oil has all the advantages of a trace lubricating technology, has stronger cooling performance and excellent tribological characteristics, effectively solves grinding burn, improves the surface quality of workpieces, realizes low-carbon green clean production with high efficiency, low consumption, environmental friendliness and resource conservation, and has significance in lifting.
Description
Technical field
The utility model relates to grinding fluid trace supply method and the device in a kind of grinding field; Specifically be a kind of with the grinding lubricant delivery to nozzle; Lubricant droplet is ejected into grinding area at a relatively high speed under the air barrier effect that compressed air generates; Realization is to the micro lubricating device of grinding separate lubrication cooling, promptly a kind of gas cover type micro lubricating feedway.
Background technology
At present, grinding makes with lubricator in a large number, is also referred to as the cast-type grinding, and is very big to environment and workers ' health injury.Because environmental requirement, the waste liquid of lubricant must pass through processing, could discharge after up to standard, and liquid waste processing is costly, up to 54% of lubricant cost, makes people have to lubricant is reappraised.Germany did investigation to automobile factory, and the result who obtains is: tool expense only accounts for the 2%-4% of processing cost; But the expense relevant with lubricant but accounts for the 7%-17% of cost, be tool expense 3-5 doubly.Energy consumption in the machining, the power that spindle operation needs only accounts for 20%, and the energy consumption relevant with cooling and lubricating but accounts for 53%.This explanation is owing to the requirement of " environmental protection and low-carbon (LC) ", and the cheap advantage of lubricant does not exist, has become the obstacle that influences production development.
For protection environment, the dry type grinding of stopping using lubricant consciously fully that reduces cost are arisen at the historic moment.The dry type grinding is owing to abandoned the use of lubricant, and the advantage of its environmental protection aspect is self-evident.But because the energy that grinding removal unit materials volume is consumed is much bigger more than processing methods such as milling, turning, drillings; Produce so high energy density in emery wheel/workpiece interface, only have less than 10% heat and taken away by abrasive dust, these heats that import workpiece into can accumulate in superficial layer and form localized hyperthermia; Therefore in grinding, do not make with lubricator fully; Workpiece surface quality is worsened, and emery wheel reduces service life significantly, even scrap inefficacy.
Between the cast-type wet-milling cut and the dry type grinding between the micro lubricating technology be to guarantee to use minimal lubricant under the prerequisite of greasy property and cooling effect.Micro lubricating is the lubricant of in gases at high pressure, sneaking into trace, by getting into the high temperature grinding area behind high pressure draught (4.0-6.5bar) mixed aerosol.Traditional cast-type feed liquid way grinding fluid consumption is the grinding wheel width 60L/h of unit, and the grinding wheel width 30-100ml/h of the consumption unit of being merely of the grinding fluid of micro lubricating.High pressure draught plays the effect of cooling, chip removal, and lubricant is attached on the finished surface of workpiece, forms layer protecting film, plays lubricated effect.This technological synthesis the advantage of cast-type grinding and dry type grinding, lubricant effect and traditional cast-type grinding are almost as broad as long.Lubricant generally adopts the Arrcostab of vegetable oil as base oil; Have characteristics such as fabulous biodegradability, greasy property and viscosity index (VI) are high, volatility is low, renewable, with short production cycle, the environment diffusion is few; The use amount of lubricant has only the some thousandths of even ten thousand of traditional processing mode/several; Having improved working environment greatly, is a kind of high-efficiency low-carbon process technology.; Research shows: the cooling effect of high pressure draught is very limited; Satisfied not the needs of high grinding area temperature enhanced heat exchange, the crudy of workpiece and wheel life obviously reduce than traditional cast-type grinding, explain that the micro lubricating technology also needs further to improve with perfect.
Can know that by the enhanced heat exchange theory heat-transfer capability of solid is much larger than liquids and gases.The thermal conductivity factor of solid material is than the big several magnitude of fluent material under the normal temperature.The thermal conductivity factor of liquid that is suspended with metal, nonmetal or polymer solid particles is than neat liquid big tens times even hundreds of times.In the micro lubricating medium, add solids, can significantly increase the thermal conductivity factor of fluid media (medium), improve the ability of convective heat transfer, greatly remedy micro lubricating cooling capacity defect of insufficient.In addition, nano particle (being meant the ultra-fine small solid particle that in three dimensions, has at least one dimension to be in nanoscale scope (1-100nm)) also has tribological properties such as special antiwear and antifriction and high bearing capacity aspect lubricated and the tribology.
The preparation method of micro lubricating lubricant is after in the mixed liquor of nano particle and degradable grinding fluid, adding alkyl sulfonate surfactants, dimethyl sulfate dispersant, adopts ten thousand times/minute dithers of 1.6-2 to obtain steady suspension again.
Nano particle is a particle diameter less than the graphite granule of 100nm or aluminium oxide, CNT, metal, and the volume content of nano particle is 1%-30vol% in the lubricant, grinding fluid is degradable lubricating oil or vegetable oil.
The utility model content
The purpose of the utility model is exactly for addressing the above problem; A kind of gas cover type micro lubricating feedway is provided; It adds the nanoscale solids particle lubricant of processing the micro lubricating grinding in the degradable grinding fluid; By micro-feedway lubricant is become have fixation pressure, pulse frequency is variable, liquid-drop diameter is constant pulse drop, under the air barrier effect that gases at high pressure produce, spray into grinding area with pattern.It has all advantages of micro lubricating technology and has stronger cooling performance and the excellent tribology characteristic; Efficiently solve grinding burn; Improve workpiece surface quality, realized efficient, low consumption, environmental friendliness, the green cleaner production of resource-effective low-carbon (LC), had very important meaning.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of gas cover type micro lubricating feedway, it comprises the lathe bed of apparatus body, on lathe bed, is provided with workbench, workbench is provided with industry control device, servo-driver, lubricant supply system and compressed-air supply system; The servo driver drives lubricant supply system, lubricant supply system all is connected with nozzle with the compressed air feedway; Industrial computer is delivered to servo-driver with kinematic parameter; The gear pump that is driven lubricant supply system by the servo driver drives servomotor rotates; The nanoscale solids particle is added the lubricant of processing the micro lubricating grinding in the degradable grinding fluid; Oil extraction unit through lubricant supply system; Send into nozzle become have fixation pressure, pulse frequency is variable, liquid-drop diameter is constant pulse drop, nozzle also sprays into grinding area with pattern with drop and carries out cooling and lubricating under the air barrier effect that the gases at high pressure that compressed-air supply system produces produce simultaneously.
Described lubricant supply system is mainly to be made up of fuel tank, gear pump, oil extraction unit, filter I, servomotor I, servomotor II; Wherein, servomotor I is connected with gear pump through shaft coupling II, and servomotor II is connected with the oil extraction unit through shaft coupling I; Insert in the fuel tank fuel sucking pipe lower end, and the upper end links to each other with the inlet port of gear pump; The pipeline that links to each other with the gear pump oil drain out then is divided into two-way; One the tunnel with slotting valve plate on pipeline link to each other; Another road links to each other with filter I one end, and the pipeline that wherein links to each other with slotting valve plate links to each other with the overflow valve fuel feed hole with the Pressure gauge II again; The oil drain out of overflow valve links to each other with the oil return pipe upper end, and insert in the fuel tank lower end of oil return pipe; The other end of filter I links to each other with the oil extraction unit by the road, and the oil extraction unit links to each other with nozzle.
Said oil extraction unit comprises the fixed disk and the end cap of oil extraction unit housings and both sides thereof, and fixed disk adopts gas thread to be connected with the oil extraction unit housings, and end cap adopts bolt to be connected with the oil extraction unit housings; It is inner that rotating disc is contained in the oil extraction unit housings, to its radial location, from left to right passes through fixed disk through thrust ball bearing and deep groove ball bearing successively, deep groove ball bearing, and spring body, thrust ball bearing, end cap is to its axial location; Fixed disk central axis place is drilled with oil-sucking hole, is connected through the ferrule-type compression joint II with the pipeline of being drawn by the filter I, is that the center is to be drilled with outage on the circle of radius with 20mm with the axis, is connected through the ferrule-type compression joint I with the pipeline of output fluid; Said rotating disc left side is processed with oil groove along radial direction, and the right side is processed with keyway, and key is housed, and links to each other with the shaft coupling I.
Said end cap is provided with the felt oil seal ring.
Said compressed air feedway comprises air compressor machine, the pneumatic circuit of from air compressor machine, drawing, and one the tunnel is mounted on Pressure gauge I and the safety valve of inserting on the valve plate, and draw from inserting valve plate one end on another road, links to each other with nozzle through filter III.
Said nozzle comprises many jet pipes, conical nozzle head, nozzle body, nozzle inner core and inner core shower nozzle; Wherein each jet pipe is connected with corresponding gas port on the nozzle head; Be connected between nozzle head and the nozzle body; Be connected between nozzle body and the nozzle inner core; The nozzle inner core is provided with air admission hole, links to each other with the oil extraction unit through the ferrule-type compression joint III, and wherein the nozzle body side is drilled with air admission hole and links to each other with the output pipe of air compressor machine.
Said nozzle head central axis place is the drop passage; The left end taper seat is drilled with a plurality of gas ports that are equally spaced at circumference on the circular section of fixed diameter; Gas port links to each other with each jet pipe; Angle between the two relative jet pipes is 22～23 °, and O RunddichtringO I and O RunddichtringO III are housed in the nozzle head inboard, and nozzle inner core root is equipped with O RunddichtringO II.
Said nozzle inner core inside is provided with oil guiding hole; Be connected between left end and the inner core shower nozzle, wherein inner core shower nozzle medial axis place is drilled with air admission hole, forms cavity between the external cylindrical surface of the left end of nozzle inner core and the nozzle body inner cylinder face; The cavity left end links to each other with four gas ports; Right-hand member links to each other with air admission hole, and the annulus area of cavity section is less than the sectional area of air admission hole, thereby the compressed air that gets into is played the effect of supercharging.
Said fuel tank is provided with oil ga(u)ge, and the bottom is provided with drain oil.
The beneficial effect of the utility model is:
Gas cover type micro lubricating feedway is that the nanoscale solids particle is added the lubricant of processing the micro lubricating grinding in the degradable grinding fluid; By oil extraction unit 10 and nozzle 11 lubricant is become have fixation pressure, pulse frequency is variable, liquid-drop diameter is constant pulse drop; Under the air barrier effect that gases at high pressure produce, spray into grinding area, and then play the effect of cooling and lubricating with pattern.
Servomotor II 9 is rotated through the rotating disc 26 that shaft coupling I 18 drives oil extraction unit 10, when the oil groove on the rotating disc 26 30 when outage 31 on the fixed disk aligns, the conducting of feed flow loop; Micro lubricating agent with certain pressure gets in the oil guiding hole 49 of nozzle inner core 42, and fine droplet is from the centre bore ejection of inner core shower nozzle 50, when the outage 31 on oil groove on the rotating disc 26 30 and the fixed disk staggers; The feed flow loop is broken off; And then in rotating disc 26 rotation processes, can realize intermittent discharge lubricant, the air admission hole 47 from the compressed air process nozzle body 41 of air compressor machine output gets into the cavitys 48; Spray from jet pipe 37 through four gas ports 38; Under the effect of converging of jet pipe 37, make compressed air will pass through the drop parcel of drop passage 52, drop is by self kinetic energy and compressed-air actuated function of transportation arrival machining area; Prevent and reduced lubricant droplet and loose, significantly reduced to the pollution of environment with to operator's injury to the biography of job shop.Change the rotating speed of gear pump 12 and the hole count of oil extraction unit 10 and can change drop supply pulse frequency, so can strict control lubricant droplet quantity delivered and supply interval.Because lubricant is to be mixed by nanoscale solids particle and degradable grinding fluid, the capacity of heat transmission of lubricant will increase considerably.Add the small-size effect of nano material, its behavior approaches fluid molecule, and the strong Brownian movement of nano particle helps its maintenance stable suspersion and do not precipitate, and has excellent flowability ability, stability and composition homogeneous performance.In addition, nano particle excellent lubrication characteristic helps to improve the tribological property of abrasive grinding wheel/workpiece interface again, reduces grinding force and grinding specific energy, and the grinding area temperature is further reduced.It is not enough to have solved the micro lubricating cooling capacity, and cast-type grinding lubricant quantity is big, takes liquid processing cost height, the difficult problem that environmental pollution is serious.
Description of drawings
Fig. 1 is a gas cover type micro lubricating feedway axis side view;
Fig. 2 is a gas cover type micro lubricating feedway front view;
Fig. 3 is a gas cover type micro lubricating feedway vertical view;
Fig. 4 is an oil extraction unit full sectional view;
Fig. 5 is the nozzle full sectional view;
Fig. 6 is servomotor control block diagram;
Fig. 7 is the hydropneumatic loop diagram;
The different lubrication mode grinding area of Fig. 8 temperature concerns over time;
Corresponding grinding distance and the abrasive dust of the different lubrication modes of Fig. 9 sticks the relation between the width.
Wherein, 1-lathe bed, 2-air compressor machine, 3-Pressure gauge I, 4-safety valve, 5-servomotor I, 6-workbench, 7-industrial computer; The 8-servo-driver, 9-servomotor II, 10-oil extraction unit, 11-nozzle, 12-gear pump, 13-filter I, 14-overflow valve; The 15-fuel tank, 16-oil ga(u)ge, 17-Pressure gauge II, 18-shaft coupling I, 19-shaft coupling II, 20-fuel sucking pipe, 21-oil return pipe; The 22-drain oil, 23-oil extraction unit housings, 24-thrust ball bearing, 25-end cap, 26-rotating disc, 27-key, 28-felt oil seal ring; The 29-spring body, 30-oil groove, 31-outage, 32-ferrule-type compression joint I, 33-oil-sucking hole, 34-ferrule-type compression joint II, 35-fixed disk; The 36-deep groove ball bearing, 37-jet pipe, 38-gas port, 39-O RunddichtringO I, 40-nozzle head, 41-nozzle body, 42-nozzle inner core; 43-O RunddichtringO II, 44-ferrule-type compression joint III, 45-fuel feed hole, 46-soket head cap screw, 47-air admission hole, 48-cavity, 49-oil guiding hole; 50-inner core shower nozzle, 51-O RunddichtringO III, 52-drop passage, 53-filter II, 54-filter III, the 55-stainless steel tube, 56-inserts valve plate.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Among Fig. 1, the gas cover type micro lubricating feedway of the utility model mainly is made up of four parts, i.e. apparatus body; Compressed-air supply system, lubricant supply system and servo drive system are equipped with air compressor machine 2 and fuel tank 15 on the lathe bed 1 of apparatus body, be equipped with on the workbench 6 of lathe bed 1 to insert valve plate 56; Industrial computer 7, servo-driver 8, servomotor I 5, servomotor II 9; Oil extraction unit 10, gear pump 12 and filter I 13 wherein are equipped with Pressure gauge I 3 on slotting valve plate 56; Safety valve 4, overflow valve 14 and Pressure gauge II 17 are equipped with nozzle 11 from the end of inserting the compressed air line that valve plate 56 draws.
In conjunction with Fig. 1, Fig. 2 is visible, and fuel tank 15 adopts bolt to be connected with lathe bed 1, and air compressor machine 2 adopts bolt to be connected with lathe bed 1, and workbench 6 is fixed with lathe bed 1, and industrial computer 7 is connected with workbench 6 bolts with servo-driver 8, inserts valve plate 56 and adopts bolt to be connected with workbench 6.
Visible in conjunction with Fig. 3; Servomotor I 5; Oil extraction unit 10, servomotor II 9, gear pump 12 adopts bolt to be connected with workbench 6; Wherein adopt shaft coupling I 18 to connect between servomotor I 5 and oil extraction unit 10 main shafts, employing shaft coupling II 19 connects between servomotor II 9 and gear pump 12 main shafts.
Pressure gauge I 3 on the said slotting valve plate 56 adopts gas thread to connect between the safety valve 4, overflow valve 14 and Pressure gauge II 17 and slotting valve plate 56.
Described compressed-air supply system is made up of six parts, i.e. air compressor machine 2, Pressure gauge I 3, safety valve 4, filter III 54, pipeline and nozzle 11.
In conjunction with Fig. 2, Fig. 3, Fig. 7 is visible, the pneumatic circuit of from air compressor machine 2, drawing, the one tunnel connects Pressure gauge I 3 and safety valve 4, and draw from inserting valve plate 56 1 ends on another road, links to each other through the air admission hole 47 of ferrule-type compression joint with nozzle 11 sides.
Described lubricant supply system is made up of five parts, i.e. fuel tank 15, gear pump 12, oil extraction unit 10, filter I 13 and pipeline.
In conjunction with Fig. 1, Fig. 2, Fig. 3; Fig. 4, Fig. 5 is visible, and insert in the fuel tank 15 fuel sucking pipe 20 lower ends; The upper end adopts pipe joint to link to each other with the inlet port of gear pump 12, and the pipeline that links to each other with gear pump 12 oil drain outs is divided into two-way, the one tunnel with slotting valve plate 56 on pipeline link to each other; Another road links to each other with filter I 13 1 ends, and the pipeline that wherein links to each other with slotting valve plate 56 links to each other with overflow valve 14 fuel feed holes with Pressure gauge II 17 again; The oil drain out of overflow valve 14 links to each other with oil return pipe 21 upper ends, and insert in the fuel tank 15 lower end of oil return pipe 21; The other end of filter I 13 by the road with the fixed disk 35 of oil extraction unit 10 on oil-sucking hole 33 link to each other through ferrule-type compression joint II 34; Outage 31 links to each other with stainless steel tube 55 1 ends through ferrule-type compression joint I 32 on the fixed disk 35 of oil extraction unit 10, and the other end of stainless steel tube 55 links to each other with the fuel feed hole of nozzle 11 afterbodys through ferrule-type compression joint III 44.Fuel tank 15 is provided with oil ga(u)ge 16, and the bottom is provided with drain oil 22.
Visible in conjunction with Fig. 4, said oil extraction unit 10 is made up of seven parts, i.e. oil extraction unit housings 23, thrust ball bearing 24, end cap 25, rotating disc 26, spring body 29, fixed disk 35 and deep groove ball bearing 36.Fixed disk 35 is equipped with in oil extraction unit housings 23 left sides, and end cap 25 is equipped with on the right side, and wherein fixed disk 35 adopts gas thread to be connected with oil extraction unit housings 23; End cap 25 and oil extraction unit housings 23 adopts bolts to be connected, and rotating disc 26 is contained in oil extraction unit housings 23 inside, through thrust ball bearing 24 and deep groove ball bearing 36 to its radial location; From left to right pass through fixed disk 35, deep groove ball bearing 36, spring body 29 successively; Thrust ball bearing 24, end cap 25 is to its axial location.
Said fixed disk 35 central axis places are drilled with the oil-sucking hole 33 that diameter is 1mm; Be connected through ferrule-type compression joint II 34 with the pipeline of drawing by filter I 13; With the axis be the center be to be drilled with the outage 31 that diameter is 1mm on the circle of radius with 20mm, be connected through ferrule-type compression joint I 32 with output fluid pipeline.
Said rotating disc 26 left sides are processed with width and the degree of depth is 1mm and length is the oil groove 30 of 21mm along radial direction, and the right side is processed with keyway, and key 27 is housed, and links to each other with shaft coupling I 18.
Said spring body 29 is used to keep rotating disc 26 and fixed disk 35 to have good contact effect, and has the effect of buffering shock-absorbing.
On the said end cap 25 felt oil seal ring 28 is housed, prevents that the internal lubrication grease from getting into outside, prevent that also external dust from getting into enclosure interior.
Visible in conjunction with Fig. 5, said nozzle 11 is made up of five parts, and promptly jet pipe 37, nozzle head 40, nozzle body 41, nozzle inner core 42 and inner core shower nozzle 50.Adopt gas thread to be connected between the gas port 38 on the jet pipe 37 that four internal diameters are 2mm and the nozzle head 40; Adopt gas thread to be connected between nozzle head 40 and the nozzle body 41; Adopt soket head cap screw 46 to be connected between nozzle body 41 and the nozzle inner core 42; Nozzle inner core 42 is provided with air admission hole 45; The pipeline of drawing through the ferrule-type compression joint III 44 and the outage 31 of oil extraction unit 10 links to each other, and wherein nozzle body 41 sides are drilled with the air admission hole 47 that diameter is 12mm, link to each other through the output pipe of ferrule-type compression joint with air compressor machine 2.
It is the drop passage 52 of 5mm that there is diameter at said nozzle head 40 central axis places; The left end taper seat is drilled with four gas ports 38 that are equally spaced at circumference on the circular section of fixed diameter; Gas port 38 links to each other with jet pipe 37 through gas thread, and the angle between the two relative jet pipes is 22～23 °, leaks in nozzle 11 in order to prevent compressed air and lubricant; O RunddichtringO I 39 and O RunddichtringO III 51 are equipped with in nozzle head 40 inboards, and nozzle inner core 42 roots are equipped with O RunddichtringO II 43.
Said nozzle inner core 42 inside are provided with the oil guiding hole 49 that diameter is 1mm; Be connected through gas thread between left end and the inner core shower nozzle 50; Wherein inner core shower nozzle 50 medial axis places are drilled with the hole that diameter is 100 μ m; Form cavity 48 between the external cylindrical surface of the left end of nozzle inner core 42 and nozzle body 41 inner cylinder faces, cavity 48 left ends link to each other with four gas ports 38, and right-hand member links to each other with air admission hole 47; The annulus area of cavity 48 sections is less than the sectional area of air admission hole 47, thereby the compressed air that gets into is played the effect of supercharging.
Gas cover type micro lubricating feedway is that the nanoscale solids particle is added the lubricant of processing the micro lubricating grinding in the degradable grinding fluid; By oil extraction unit 10 and nozzle 11 lubricant is become have fixation pressure, pulse frequency is variable, liquid-drop diameter is constant pulse drop; Under the air barrier effect that gases at high pressure produce, spray into grinding area, and then play the effect of cooling and lubricating with pattern.
Because different process; Lubricant quantity is different; So fixed disk 35 is made the parts of seriation; Combination gear pump 12 different rotating speeds obtain lubricant quantity delivered in a big way, and getting fixed disk 35 outages 31 numbers is 1,2,4,6,8,10, and the parameter of the gear pump of selecting for use 12 is as shown in table 1.
Table 1
The flow of oil extraction unit 10 depends on the rotation speed n of oil extraction hole count m and gear pump 12; Though the rotating speed that changes gear pump 12 can change the flow of oil extraction unit, will cause the increase of single pulse fluid volume, has increased compressed-air actuated burden of transporting drop; And the hole count that changes oil extraction unit 10 can increase flow; Also can not change the volume of single pulse drop, so the Flow-rate adjustment of oil extraction unit is main with the number that changes outage 31 on the fixed disk 35, the rotating speed of regulating servomotor is auxilliary.When regulating the rotating speed of servomotor, in order not increase single pulse droplet size, the servomotor rotating speed that links to each other with the oil extraction unit also changes accordingly.
The flow adjustment range of fixed disk with different hole counts is as shown in table 2.
Table 2
The concrete course of work of gas cover type micro lubricating feedway is following: industrial computer 7 is input to servo-driver 8 with kinematic parameter, and then control servomotor I 5 and 9 motions of servomotor II, and servo-electric I 5 is rotated through shaft coupling II 19 driven gear pumps 12; Make gear pump 12 from fuel tank 15, extract lubricant through fuel sucking pipe 20, a lubricant part overflows in the fuel tank 15 through oil return pipe 21, and another part is sent in the oil extraction unit 10; Servomotor II 9 is rotated through the rotating disc 26 that shaft coupling I 18 drives oil extraction unit 10, when the oil groove on the rotating disc 26 30 when outage 31 on the fixed disk aligns, the conducting of feed flow loop; Micro lubricating agent with certain pressure gets in the oil guiding hole 49 of nozzle inner core 42; Fine droplet is from the centre bore ejection of inner core shower nozzle 50, and when the outage 31 on oil groove on the rotating disc 26 30 and the fixed disk staggered, the feed flow loop was broken off; And then in rotating disc 26 rotation processes; Can realize intermittent discharge lubricant, the air admission hole 47 from the compressed air process nozzle body 41 of air compressor machine output gets into the cavitys 48, sprays from jet pipe 37 through four gas ports 38; Under the effect of converging of jet pipe 37; Make compressed air will pass through the drop parcel of drop passage 52, drop arrives machining area by self kinetic energy and compressed-air actuated function of transportation, and then plays the effect of cooling and lubricating.
Visible in conjunction with Fig. 6; The motion control process of servomotor I 5 and servomotor II 9 is following: industrial computer 7 is given the kinematic parameter that sets the servo-driver of this servomotor I 5 and servomotor II 9; Control the motion of servomotor I 5 and servomotor II 9 then by servo-driver; The monitoring of the photoelectric encoder of the afterbody of process servomotor I 5 and servomotor II 9; Measured rotating speed and corner information are delivered in the industrial computer 7,, motion next time is revised by the motion compensation quantity of industrial computer 7 next pulse of analysis.
Visible in conjunction with Fig. 7; Lubricant is inhaled in the gear pump 12 through filter 53 from fuel tank 15; The lubricant of from gear pump 12, discharging is divided into three the tunnel, the one tunnel and links to each other with Pressure gauge II 17, and one the tunnel through overflow valve 14 entering fuel tanks 15; One the tunnel through filter I 13 entering oil extraction unit 10, and the lubricant of 10 discharges gets into nozzle 11 from the oil extraction unit; The compressed air that air compressor machine 2 is seen off also is divided into three the tunnel, the one tunnel and links to each other with Pressure gauge I 3, and one the tunnel links to each other with safety valve 4, and one the tunnel gets in the nozzles 11 through filter III 54.
The concrete operating procedure of gas cover type micro lubricating feedway is following:
(1) according to processing method, select needed lubricant quantity, table look-up 2 draw fixed disk fuel feed hole 33 number, change the fixed disk that has corresponding fuel feed hole in the fixed disk series;
(2) start industrial computer 7; Set flow of lubricant, calculate the rotating speed of servomotor, kinematic parameter is sent into servo-driver 8 according to the flow rate calculation formula in the table 2; And then drive servomotor I 5 and 9 rotations of servomotor II, make oil extraction unit 10 and gear pump 12 start working;
(3) start air compressor machine 2, supply with compressed air;
(4) overflow valve 14 valve port pressure are transferred to 2MPa, safety valve 4 valve port pressure transfer to 0.5MPa;
(5) regulate nozzle angle, make lubricating system begin operate as normal;
(6) process finishing is closed industrial computer 7 earlier, after close air compressor machine 2.
Gas cover type micro lubricating feedway grinding test effect is following:
In order to assess the lubricated and cooling effect of lubricant lubricating system with trace amount; Under identical grinding condition; Dry type grinding, traditional micro lubricating, three kinds of lubrication modes of lubricant micro lubricating are carried out aluminium alloy grinding testing research; Test result is as shown in Figure 8, and this figure has explained that the lubricant lubricating system with trace amount compares with dry type grinding, traditional micro lubricating, can play better cooling effect.
Under identical grinding condition; Dry type grinding, traditional micro lubricating, three kinds of lubrication modes of lubricant micro lubricating are carried out the titanium alloy grinding testing research, and test result is as shown in Figure 9, has shown among the figure under different lubrication modes; Grinding distance and abrasive dust stick the relation between the width; Can find out that lubricant lubricating system with trace amount and traditional micro lubricating have similar abrasive dust and stick width, remarkable advantages arranged, explain that this lubricating system can obtain good lubricating effect than the dry type grinding.Wherein, lines 1 are the dry type grinding; Lines 2 are lubricant micro lubricating (no air); Lines 3 are lubricant micro lubricating (old-fashioned nozzle); Lines 4 are lubricant micro lubricating (new type nozzle); Lines 5 are traditional micro lubricating.
Claims (9)
1. a gas cover type micro lubricating feedway is characterized in that it comprises the lathe bed of apparatus body, on lathe bed, is provided with workbench, and workbench is provided with industry control device, servo-driver, lubricant supply system and compressed-air supply system; The servo driver drives lubricant supply system, lubricant supply system all is connected with nozzle with the compressed air feedway; Industrial computer is delivered to servo-driver with kinematic parameter; The gear pump that is driven lubricant supply system by the servo driver drives servomotor rotates; With the oil extraction unit of lubricant through lubricant supply system; Send into nozzle become have fixation pressure, pulse frequency is variable, liquid-drop diameter is constant pulse drop, nozzle also sprays into grinding area with pattern with drop and carries out cooling and lubricating under the air barrier effect that the gases at high pressure that compressed-air supply system produces produce simultaneously.
2. gas cover type micro lubricating feedway as claimed in claim 1 is characterized in that, described lubricant supply system is mainly to be made up of fuel tank, gear pump, oil extraction unit, filter I, servomotor I, servomotor II; Wherein, servomotor I is connected with gear pump through shaft coupling II, and servomotor II is connected with the oil extraction unit through shaft coupling I; Insert in the fuel tank fuel sucking pipe lower end, and the upper end links to each other with the inlet port of gear pump; The pipeline that links to each other with the gear pump oil drain out then is divided into two-way; One the tunnel with slotting valve plate on pipeline link to each other; Another road links to each other with filter I one end, and the pipeline that wherein links to each other with slotting valve plate links to each other with the overflow valve fuel feed hole with the Pressure gauge II again; The oil drain out of overflow valve links to each other with the oil return pipe upper end, and insert in the fuel tank lower end of oil return pipe; The other end of filter I links to each other with the oil extraction unit by the road, and the oil extraction unit links to each other with nozzle.
3. according to claim 1 or claim 2 gas cover type micro lubricating feedway; It is characterized in that; Said oil extraction unit comprises the fixed disk and the end cap of oil extraction unit housings and both sides thereof, and fixed disk adopts gas thread to be connected with the oil extraction unit housings, and end cap adopts bolt to be connected with the oil extraction unit housings; It is inner that rotating disc is contained in the oil extraction unit housings, to its radial location, from left to right passes through fixed disk through thrust ball bearing and deep groove ball bearing successively, deep groove ball bearing, and spring body, thrust ball bearing, end cap is to its axial location; Fixed disk central axis place is drilled with oil-sucking hole, is connected through the ferrule-type compression joint II with the pipeline of being drawn by the filter I, with the axis is to be drilled with outage on the circle at center, is connected through the ferrule-type compression joint I with the pipeline of output fluid; Said rotating disc left side is processed with oil groove along radial direction, and the right side is processed with keyway, and key is housed, and links to each other with the shaft coupling I.
4. gas cover type micro lubricating feedway as claimed in claim 3 is characterized in that said end cap is provided with the felt oil seal ring.
5. gas cover type micro lubricating feedway as claimed in claim 1; It is characterized in that; Said compressed air feedway comprises air compressor machine, the pneumatic circuit of from air compressor machine, drawing, and one the tunnel is mounted on Pressure gauge I and the safety valve of inserting on the valve plate; Draw from inserting valve plate one end on another road, links to each other with nozzle through filter III.
6. gas cover type micro lubricating feedway as claimed in claim 1 is characterized in that said nozzle comprises many jet pipes, conical nozzle head, nozzle body, nozzle inner core and inner core shower nozzle; Wherein each jet pipe is connected with corresponding gas port on the nozzle head; Be connected between nozzle head and the nozzle body; Be connected between nozzle body and the nozzle inner core; The nozzle inner core is provided with air admission hole, links to each other with the oil extraction unit through the ferrule-type compression joint III, and wherein the nozzle body side is drilled with air admission hole and links to each other with the output pipe of air compressor machine.
7. gas cover type micro lubricating feedway as claimed in claim 6; It is characterized in that said nozzle head central axis place is the drop passage, the left end taper seat is drilled with a plurality of gas ports that are equally spaced at circumference on the circular section of fixed diameter; Gas port links to each other with each jet pipe; Angle between the two relative jet pipes is 22 ~ 23 °, and O RunddichtringO I and O RunddichtringO III are housed in the nozzle head inboard, and nozzle inner core root is equipped with O RunddichtringO II.
8. like claim 6 or 7 described gas cover type micro lubricating feedwaies; It is characterized in that said nozzle inner core inside is provided with oil guiding hole, be connected between left end and the inner core shower nozzle; Wherein inner core shower nozzle medial axis place is drilled with air admission hole; Form cavity between the external cylindrical surface of the left end of nozzle inner core and the nozzle body inner cylinder face, the cavity left end links to each other with four gas ports, and right-hand member links to each other with air admission hole; The annulus area of cavity section is less than the sectional area of air admission hole, thereby the compressed air that gets into is played the effect of supercharging.
9. gas cover type micro lubricating feedway as claimed in claim 2 is characterized in that said fuel tank is provided with oil ga(u)ge, and the bottom is provided with drain oil.
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| CN 201220222932 CN202572162U (en) | 2012-05-17 | 2012-05-17 | Air hood type micro-lubricating supply device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196026A (en) * | 2013-04-12 | 2013-07-10 | 桐乡双玛机械有限公司 | Solid minimal quantity lubricating device |
| CN109227358A (en) * | 2018-10-17 | 2019-01-18 | 段明旭 | A kind of Millstone oil cooled system system |
| CN112944188A (en) * | 2019-11-26 | 2021-06-11 | 北京机械工业自动化研究所有限公司 | Gun type movable oiling device and oiling head thereof |
-
2012
- 2012-05-17 CN CN 201220222932 patent/CN202572162U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196026A (en) * | 2013-04-12 | 2013-07-10 | 桐乡双玛机械有限公司 | Solid minimal quantity lubricating device |
| CN103196026B (en) * | 2013-04-12 | 2016-02-24 | 桐乡双玛机械有限公司 | Solid minimum quantity lubrication device |
| CN109227358A (en) * | 2018-10-17 | 2019-01-18 | 段明旭 | A kind of Millstone oil cooled system system |
| CN109227358B (en) * | 2018-10-17 | 2020-11-20 | 泗县泽农秸秆回收利用有限公司 | Grind quick-witted mill oil cooling system |
| CN112944188A (en) * | 2019-11-26 | 2021-06-11 | 北京机械工业自动化研究所有限公司 | Gun type movable oiling device and oiling head thereof |
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