CN108181125A - Machining center cuts liquid cooling system reliability test - Google Patents

Abstract

The invention discloses a kind of machining centers to cut liquid cooling system reliability test, the problem of laboratory reliability bench test for not being directed to cooling system is overcome, including Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism, status monitoring alarm mechanism and automatic controls；Filter mechanism includes automatically controlled flow valve and filter screen；Cutting fluid conveying mechanism includes cutting fluid water tank and cutting fluid delivery pipe；Work condition analogue mechanism is located at top by babinet, filter mechanism is located at Work condition analogue mechanism in the following, cutting fluid conveying mechanism is located at filter mechanism in the following, filter screen is mounted in the bottom of babinet, the pipeline for connecting automatically controlled flow valve is inserted into cutting fluid water tank, and cutting fluid water tank is connect with cutting fluid delivery pipe；Status monitoring alarm mechanism is mounted in Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism, is connected between automatic controls and Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism and status monitoring alarm mechanism using signal wire.

Description

Machining center cuts liquid cooling system reliability test

Technical field

The present invention relates to a kind of experimental rig applied to machining center cutting liquid cooling system reliability field, more precisely Say that the present invention relates to a kind of machining centers to cut liquid cooling system reliability test in ground.

Background technology

Machining center is the basic manufacturing equipment for improving national manufacture level and equipment, is a National Industrial prosperity Horizontal and overall national strength important symbol.Generally outfit device of the liquid cooling system as machining center is cut, in actual production In play an important role.In cutting process, cutting fluid can cool down cutter and workpiece, reduce what is generated during cutting Friction, so as to reduce the degree of wear of cutter, improves the surface quality of workpiece, the effects that playing cooling, cleaning and lubricate.In reality In the processing of border, in order to reduce processing cost, cutting fluid is usually recycled.The configurating filtered system of machining center, the circulatory system and Transport system, to make cutting fluid after use by depositing, filtering and fluid separation etc. is transported in water tank after processes and continues It recycles.But often due to there are lubricating oil for the metal powder, impurity and the workpiece surface that generate during cutting in process Etc. reasons, the circulatory system often block, cutting fluid is caused not convey normally, influences the normal use of machining center.

Due to that can generate the chip of irregular shape and size during cutting, small borings is easy to cutting fluid Into the circulatory system, if to the cleaning that it is carried out the stability of the equipment such as water pump can not reduced, therefore filtration system generally has Stronger strainability.If the particle diameter being precipitated is very small, small metal powder can constantly be deposited in filtering system In system, and since processed workpiece blank surface applies antirust oil under the flushing of cutting fluid, it is blended in cutting fluid, causes Cut fluid viscosity increase.When cutting fluid passes through filtration system, the impurity such as greasy dirt are bonded with small borings, are deposited in In filter system, it will cause to block pipeline in the course of time, and cause the interruption of the circulatory system, cause entire machining center can not normal work Make.

Due to much time using, many impurity can not remove completely, simultaneously because high temperature, the reason of air permeability is bad, The mushrooms such as mould is caused to obtain good Reproduction Conditions, cutting fluid produces dope, increases its viscosity, causes to spray The key components such as mouth, pipeline, water pump form accumulation, can be continuing with after gently then dredging, heavy then pipeline is caused to be revealed, damage electronics Device causes the catastrophe failure of complete machine.

So far, the rank of fault statistics analysis is also rested on to the reliability consideration of machining center cutting liquid cooling system Section, does not carry out corresponding bench test to it.Therefore, a device that can simulate the cooling system course of work is designed, it is right It, which carries out scientific and reasonable reliability test, is particularly important.

Invention content

The technical problems to be solved by the invention be overcome the existing stage be directed to cooling system laboratory it is reliable Property bench test the problem of, provide a kind of machining center cutting liquid cooling system reliability test.

In order to solve the above technical problems, the present invention adopts the following technical scheme that realization：The machining center cutting Liquid cooling system reliability test includes Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism, status monitoring alarm Mechanism and automatic controls；

The Work condition analogue mechanism includes babinet；

The filter mechanism includes automatically controlled flow valve and filter screen；

The cutting fluid conveying mechanism includes cutting fluid water tank and cutting fluid delivery pipe；

The Work condition analogue mechanism is mounted on top by babinet, and filter mechanism is mounted under Work condition analogue mechanism Face, cutting fluid conveying mechanism are mounted below filter mechanism, and filter screen is mounted in the bottom of babinet, connects automatically controlled flow valve Pipeline be inserted into cutting fluid water tank in, cutting fluid water tank is connect with cutting fluid delivery pipe lower end；

The status monitoring alarm mechanism is mounted in Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism, from It is dynamic that letter is used between control mechanism and Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism and status monitoring alarm mechanism The connection of number line.

It is defeated that status monitoring alarm mechanism described in technical solution is mounted on Work condition analogue mechanism, filter mechanism, cutting fluid It send in mechanism and refers to：The status monitoring alarm mechanism includes the identical cutting fluid pollution of water pump temperature sensor, 6 structures The identical filter device liquid level sensor of sensor, 4 structures, flow pressure meter, iron core temperature sensor, shut off high water tank Sensor, high water tank sensor, liquid quality sensor and alarm；The water pump temperature sensor is mounted on cutting fluid The shell side of water pump in conveying mechanism；6 cutting fluid contaminant sensors are separately mounted to the No.1 filtering dress in filter mechanism It puts and No.1 mistake that in No. two filter devices, the identical filter device liquid level sensor of 4 structures is mounted on being respectively perpendicular It filters in device and No. two filter devices, one end of flow pressure meter is connect with the top of cutting fluid delivery pipe, flow pressure meter The connecting pipe of the other end is inserted into babinet, and iron core temperature sensor is mounted on core interior, the high water tank sensor that shuts off peace In the one side wall for shutting off water tank in filter mechanism, high water tank sensor is mounted on the cutting in cutting fluid conveying mechanism In liquid water tank, liquid quality sensor is mounted on the bottom of cutting fluid water tank, and alarm is mounted on the cabinet of upper industrial personal computer.

Automatic controls and Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism described in technical solution with Referred between status monitoring alarm mechanism using signal wire connection：The automatic controls includes upper industrial personal computer, data Capture card, the next programmable controller and electromagnet controller；The upper industrial personal computer is connect with data collecting card, upper work Control machine is connect with the next programmable controller, and upper industrial personal computer is connect with electromagnet controller；The data collecting card and shape The identical cutting fluid contaminant sensor of water pump temperature sensor, 6 structures in state monitoring, alarming mechanism, 4 structures are identical Filter device liquid level sensor, flow pressure meter, iron core temperature sensor, the high water tank sensor that shuts off, high water tank sensing Device is connect with liquid quality sensor using signal wire；It is automatically controlled in the next programmable controller and Work condition analogue mechanism Solenoid electric valve in atomizer, filter mechanism is connect with the alarm in status monitoring alarm mechanism；The electromagnet control Device processed is connect with the both ends of the coil in Work condition analogue mechanism.

Work condition analogue mechanism described in technical solution includes cutting thermal cycle simulation, greasy dirt simulator and impurity simulation Device；The cutting thermal cycle simulation includes the identical coil support of the identical iron core support angle steel of 4 root architectures, 4 root architectures Angle steel and solenoid housing component；The greasy dirt simulator includes fuel tank, petroleum pipeline and electronic fuel injection；The impurity mould Intend device and include the iron filings that DRY CUTTING generates；

The solenoid housing component passes through the identical iron core support angle steel of the 4 root architectures coil branch identical with 4 root architectures Support angle steel is mounted in babinet, and fuel tank is mounted on the top of tank wall on the left of babinet, and the oil outlet of fuel tank is directed downward, fuel tank One end of oil outlet and petroleum pipeline connects, and the other end of petroleum pipeline passes through the through-hole on the left of babinet on tank wall, and and electronic control injection Mouth connects, and the iron core in the nozzle alignment coil housing unit of electronic fuel injection, iron filings are placed on the bottom of babinet, in babinet Piling height be more than or equal to 10cm.

Babinet described in technical solution is the housing component that cross section is square annular, top uncovered, in bottom symmetrically Setting, for installing the through-hole of filter screen, the identical branch of double-layer structure is welded in the surrounding of cabinet wall there are two rectangular Support structure, every layer of support construction include the support angle steel that 4 cross sections are L-type, and there are two the middle part settings of every support angle steel The circular through-hole for fixed coil support angle steel and iron core support angle steel, 4 support angle steels are fixed on together end to end In one layer of horizontal plane, two layers is 90mm by the spacing of support construction that support angle steel forms.

Solenoid housing component described in technical solution includes coil, solenoid housing, outer ring waterproof washer, inner ring collision mat Circle, solenoid housing lid and iron core；It is open hollow structural members that the solenoid housing, which is the columnar bottom end of annulus, solenoid housing Top periphery be equably provided with for the threaded hole of fixed coil support angle steel, be coated with insulated paint in coil housing cavity, Coil is placed in the inner cavity of solenoid housing, is stretched out in two through-holes that the both ends of winding wire pass through solenoid housing side, and Using two through-holes of fluid sealant encapsulated coil housing, inner ring waterproof washer is installed in inner ring and the outer ring of solenoid housing bottom end respectively With outer ring waterproof washer, solenoid housing lid is fixed on the bottom end of solenoid housing by the bolt of outer ring and the bolt of inner ring；Iron core For the columnar hollow structural members of annulus, temperature sensor is placed in inside, iron core bottom end periphery be equably provided with for iron core with The threaded hole of iron core support angle steel inner end connection, the axis of iron core are overlapped with the axis of solenoid housing.

Coil support angle steel and iron core support angle steel described in technical solution are U-shaped steel, and both ends are respectively arranged with 1 pair of circle Shape through-hole and 1 pair of long strip through hole, the inner end of coil support angle steel pass through circular through hole and the threaded hole of solenoid housing top position It is connected by screw bolts, the outer end of coil support angle steel passes through in long strip through hole and the L-type support angle steel being welded on cabinet wall Between two through-holes be fixed by bolts, the axis of rotation of solenoid housing is conllinear with the axis of symmetry of babinet；Iron core support angle steel Inner end be connected by screw bolts by circular through hole and the threaded hole of mandrel bottom position, the strip of the outer end of iron core support angle steel Through-hole is connected by screw bolts with two through-holes being welded among the L-type support angle steel of cabinet wall lower floor, the rotating shaft of iron core The rotation conllinear of line and solenoid housing.

Filter mechanism described in technical solution further includes the identical cutting of the water tank that shuts off, No.1 filter device, 2 structures Liquid drainage system, No. two filter devices and automatically controlled flow valve；The identical filter screen of 2 structures is rectangle reticular structure Part, the identical filter screen of 2 structures are mounted in the identical rectangular through holes of 2 structures in babinet bottom, and 2 structures are identical Filter screen be installed below the identical cutting fluid drainage system of 2 structures, the identical cutting fluid drainage system of 2 structures just under Side is equipped with No.1 filter device and No. two filter devices from right to left, and the water tank that shuts off is mounted on No.1 filter device and No. two mistakes The underface of device is filtered, No.1 filter device and No. two filter devices are respectively adopted pipeline insertion and shut off in water tank, automatically controlled flow Valve is mounted on the bottom plate for the water tank that shuts off.

Cutting fluid conveying mechanism described in technical solution further include 3 low liquid level warning devices, 3 high level alarms with Water pump；The cutting fluid water tank is the case member of cuboid, and cutting fluid input pipe is installed on the top of cutting fluid water tank respectively With cutting fluid delivery pipe, water pump is installed on the left of the cutting fluid delivery pipe on cutting fluid water tank top, in cutting fluid water tank 3 low liquid level warning devices and 3 high level alarms are installed respectively, 3 low liquid level warning devices are parallel to same level on inner wall The inner wall bottom end of cutting fluid water tank is installed on to face, 3 high level alarms are installed on cutting fluid with being parallel to same level The inner wall top of water tank, equipped with the cutting under the control of automatically controlled flow valve after filter mechanism filters in cutting fluid water tank Liquid.

Compared with prior art the beneficial effects of the invention are as follows：

1. machining center of the present invention cuts cutting of the liquid cooling system reliability test based on machining center The characteristics of liquid cooling system, Design Laboratory Bench Test System can carry out it in laboratory individual reliability examination It tests, and adjusts corresponding test parameters, simulate the site environment of actual processing, can effectively find out cutting liquid cooling system Weak link, and the systematic parameter of machining center can also be optimized, give full play to the performance of machining center cooling system.

2. machining center of the present invention cuts liquid cooling system reliability test according to actual processing scene ring Border, design conditions simulation mechanism, including：Thermal cycle simulation, greasy dirt simulator and impurity simulator are cut, during simulating cutting The influence to cooling system such as cutting heat, greasy dirt and chip of generation ensure that the accuracy and authenticity of experiment.

3. machining center cutting liquid cooling system reliability test of the present invention can simultaneously filter two kinds System carries out reliability test, embodies flexibility and the versatility of the present apparatus.

Description of the drawings

The present invention is further illustrated below in conjunction with the accompanying drawings：

Fig. 1 is the main view of machining center cutting liquid cooling system reliability test structure composition of the present invention Figure；

Fig. 2 is the simulation mechanism structure in machining center cutting liquid cooling system reliability test of the present invention The axonometric view of composition；

Fig. 3 is the office of the simulation mechanism in machining center cutting liquid cooling system reliability test of the present invention The axonometric view of portion's design of part composition；

Fig. 4 is half of solenoid housing in machining center cutting liquid cooling system reliability test of the present invention The axonometric view of assembly structure composition；

Fig. 5 is the core structure composition in machining center cutting liquid cooling system reliability test of the present invention Axonometric view；

Fig. 6 is the control mechanism structure in the cold rising sun System Reliability Test device of machining center cutting fluid of the present invention The schematic diagram of composition.

In figure：1. cutting fluid water tank, 2. low liquid level warning devices, 3. high level alarms, 4. water pumps, 5. water pump temperature sensing Device, 6. cutting fluid delivery pipes, 7. shut off water tank, 8. cutting fluid contaminant sensors, 9. No.1 filter devices, 10. filter device liquid Level sensor, 11. cutting fluid drainage systems, 12. babinets, 13. iron core support angle steels, 14. coil support angle steel, 15. flow pressures Power meter, 16. fuel tanks, 17. petroleum pipelines, 18. electronic fuel injections, 19. coils, 20. solenoid housings, 21. outer ring waterproof washers, 22. Inner ring waterproof washer, 23. solenoid housing lids, 24. iron cores, 25. temperature sensors, 26. iron filings, 27. No. two filter devices, 28. Shut off high water tank sensor, 29. automatically controlled flow valves, 30. high water tank sensors, 31. liquid quality sensors, 32. cuttings Liquid, 33. support angle steels, 34. filter screens, 35. upper industrial personal computers, 36. data collecting cards, 37. alarms, 38. is the next programmable Controller, 39. electromagnet controllers, 40. signal wires, 41. embedded type C ompactRIO controllers.

Specific embodiment

The present invention is explained in detail below in conjunction with the accompanying drawings：

Described machining center cutting liquid cooling system reliability test include Work condition analogue mechanism, filter mechanism, Cutting fluid conveying mechanism, status monitoring alarm mechanism and automatic controls.

One, Work condition analogues mechanism

During actual processing, borings is usually containing the smaller metal powder of a large amount of grain sizes, due to metal powder Grain size it is smaller, the primary filter of machining center can not be adequately filtered out.Therefore, metal powder is with cutting fluid The secondary filtration system for entering machining center after primary filter is flowed through, is filtered through secondary filtration system, metal powder It is obstructed in the water tank of filtration system by the strainer of filter device, the accumulation of through a long time, the strainer of filtration system is gradually micro- Small metal powder covering, fails so as to cause strainer, finally the circulatory system is caused to be interrupted.In addition, due to part workpiece blank The anticorrosions substance such as surface smear antirust oil, lubricating oil, under the flushing of cutting fluid these substances are mixed into cutting fluid, So as to cause cutting fluid viscosity increase.Dust, minute metallic particle and the other impurities being mixed into cutting fluid are gradually mutually viscous Knot, eventually forms dope and is deposited at collector nozzle, water pump pipeline and nozzle, cause line clogging, cause cutting fluid real Existing cooling cycle, causes machining center cutting fluid cooling system failure, must shut down at this time and carry out malfunction elimination and dredged.

In conclusion the Work condition analogue mechanism of the present invention considers the influence of many factors, Work condition analogue mechanism includes cutting Thermal cycle simulation, greasy dirt simulator and impurity simulator.

The cutting thermal cycle simulation includes the identical iron core strut angle of babinet 12,8 support angle steels 33,4 root architectures The identical coil support angle steel 14 of steel 13,4 root architectures and solenoid housing component.

The solenoid housing component includes coil 19, solenoid housing 20, outer ring waterproof washer 21, inner ring waterproof washer 22nd, solenoid housing lid 23 and iron core 24.

The babinet 12 is the housing component that cross section is square, and top uncovered is fixed on self-control foot stool, is placed on The highest point of single unit system, bottom are symmetrically provided with two rectangular through-holes, and through-hole edge is step type, for fixing Strainer 34 is welded with the identical support construction of double-layer structure in the surrounding of 12 inner wall of babinet, and every layer of support construction is transversal including 4 Face is the support angle steel 33 of L-type, and the middle part setting of every support angle steel 33 is there are two circular through hole, for fixed coil strut angle 13,4 support angle steels 33 of steel 14 and iron core support angle steel are fixed in the plane of same layer end to end, and two layers by strut angle The spacing for the support construction that steel 33 forms is 90mm；

The coil support angle steel 14 and iron core support angle steel 13 are U-shaped steel, and both ends are respectively arranged with 1 pair of circular through hole With 1 pair of long strip through hole, the inner end of coil support angle steel 14 passes through circular through hole and 8 threaded holes of 20 top position of solenoid housing It is connected by screw bolts, the outer end of coil support angle steel 14 passes through long strip through hole and the L-type strut angle being welded on 12 inner wall of babinet Two through-holes among steel 33 are fixed by bolts, and 4 coil support angles are adjusted by the long strip through hole of coil support angle steel 14 The relative position of steel 14 so as to the installation site of regulating winding housing 20, makes the axis of rotation of solenoid housing 20 and babinet 12 The axis of symmetry is conllinear；The inner end of iron core support angle steel 13 is used by 8 threaded holes of circular through hole and 24 bottom position of iron core It is bolted, the long strip through hole of the outer end of iron core support angle steel 13 and the L-type support angle steel 33 for being welded on 12 inner wall lower floor of babinet Two intermediate through-holes are connected by screw bolts, and iron core support angle steel 13 is adjusted by the long strip through hole of 13 outer end of iron core support angle steel Relative position, so as to adjust relative position of the iron core 24 relative to solenoid housing 20, make the axis of rotation and coil of iron core 24 The axis of rotation of housing 20 overlaps；

The solenoid housing 20 is the columnar hollow structural members of annulus, and top periphery is provided with 8 threaded holes, for solid Alignment circle support angle steel 14 is coated with insulated paint in 20 inner cavity of solenoid housing, and coil 19 is placed on the inner cavity of solenoid housing 20, coil 19 be annular, is entwined by copper core packet paint line, and outer diameter is equal to the inner wall outer diameter of solenoid housing 20, and internal diameter is in solenoid housing 20 Wall internal diameter, inside wall height highly hollow for solenoid housing 20, the both ends of 19 conducting wire of coil pass through the two of 20 side of solenoid housing It stretches out in a through-hole, then is connect with external electromagnet controller 39, electromagnet controller 39 is connect with upper industrial personal computer 35, line Circle 19 uses two through-holes of fluid sealant encapsulated coil housing 20 after being connect with electromagnet controller 39,20 bottom end of solenoid housing Inner ring installs inner ring waterproof washer 22 and outer ring waterproof washer 21,8 spiral shells that solenoid housing lid 23 passes through outer ring respectively with outer ring 4 bolts of bolt and inner ring are fixed on the bottom end of solenoid housing 20；Iron core 24 be the columnar hollow structural members of annulus, 24 bottom of iron core End periphery is provided with 8 threaded holes, for the connection of iron core 24 and 13 inner end of iron core support angle steel, the axis and coil of iron core 24 The axis of housing 20 overlaps.

In order to ensure the stability of device, the part material for cutting thermal cycle simulation should be un-conducted magnetic material, coil Housing 20 and 23 material of solenoid housing lid are aluminium, and bolt and nut material are white steel, coil support angle steel 14 and iron core strut angle Steel 13 is 304 stainless steels, and the material of iron core 24 is pure iron, and surface carries out antirust plating.

The course of work of the cutting thermal cycle simulation is：Electromagnet controller 39 is in the control of upper industrial personal computer 35 Under, high-frequency alternating current is exported, coil 19 generates alternating magnetic field inside coil 19, make installation under the action of high-frequency alternating current Iron core 24 among coil 19 generates eddy current effect under conditions of alternating magnetic field, so as to which iron core 24 be made to generate heat, simulation The cutting heat generated in actual processing.By adjusting power frequency and size of current, the tune of 24 calorific value height of iron core is realized Section, so as to simulate the cutting heat under different operating modes.

The greasy dirt simulator includes fuel tank 16, petroleum pipeline 17 and electronic fuel injection 18.

The fuel tank 16 is rectangular box, has mounting flange in one side, and it is left to be mounted on babinet 12 by 4 bolts There are oil outlet in the top of side wall, 16 lower end of fuel tank, are directed downward, and oil outlet is connect with one end of petroleum pipeline 17, petroleum pipeline 17 For space circle bend pipe, the other end of petroleum pipeline 17 passes through the through-hole on 12 left side tank wall of babinet, and is connect with electronic fuel injection 18, Electronic fuel injection 18 is ISDE electronic fuel injections, and 18 nozzle of electronic fuel injection is directed at iron core 24, and electronic fuel injection 18 controls signal Line is connected to the DQa output terminals of the next programmable controller 38, the next programmable controller 38 by RS484 signal wires with it is upper The USB port connection of industrial personal computer 35, since fuel tank 16 is in inversion state, fluid can be full of petroleum pipeline 17, and in atomizer one Side forms certain pressure, electronic fuel injection 18 is controlled to spray one to iron core 24 in the certain intervals time by upper industrial personal computer 35 Quantitative fluid simulates a small amount of lubricating oil, antirust oil etc. existing for workpiece surface and tool surface in actual processing.

The impurity simulator includes iron filings 26 and cutting fluid 32；

The impurity simulator is the iron filings 26 placed in 12 bottom of babinet, and the height accumulated in babinet 12 is at least For the chip that more than 10cm, the requirement of iron filings 26 are generated for DRY CUTTING, remaining impurity can be with cutting fluid 32 in iron filings 26 Be flowed into filter device by cutting fluid drainage system 11, realize the minute metallic particle that is generated during actual processing and The impurity such as dust are mixed into the simulation of cutting fluid 32.

Two, filter mechanisms

The filter mechanism is to include the identical cutting fluid drainage system 11 of 34,2 structures of filter screen, No.1 filtering dress Put 9, No. two filter devices 27, shut off water tank 7 and automatically controlled flow valve 29.

The identical filter screen 34 of 2 structures be rectangle reticular structure part, the filter screen eyes of filter screen 34 Number is 60 mesh, and in the rectangular through holes of 12 bottom of babinet, the rectangular through holes edge of 12 bottom of babinet is dovetail groove, mistake Strainer 34 is positioned by dovetail groove, is fixed on the impurity such as the bottom of babinet 12, the chip that filter screen 34 generates for filtering processing, case The rectangular through holes lower weld cutting fluid drainage system 11 of body 12, cutting fluid drainage system 11 be trapezoidal funnel, bottom through-hole Rectangle steel pipe is welded with, for conveying in cutting fluid 32 to No.1 filter device 9 and No. two filter devices 27.

The No.1 filter device 9 and No. two filter devices 27 are placed on homemade foot stool, highly less than babinet 12 Placing height, higher than throttling water tank 7 height.

The retention water tank 7 is placed on homemade foot stool, highly less than No.1 filter device 9 and No. two filter devices 27。

Filter device in the filter mechanism is No.1 filter device 9 and No. two filter devices 27, and No.1 filtering fills Put 9 and No. two filter devices 27 filtration system for secondary filtration system, device is rectangular box, installation two in babinet Babinet is divided into 3 compartments, the net of by-pass filtration sieve by filter screen, respectively by-pass filtration sieve and secondary filtration sieve Eyes number is 80 mesh, and secondary filtration sieve mesh mesh number is 100 mesh, and filtering cutting fluid 32 is by babinet 12 through cutting fluid drainage system 11 flow into first compartment in secondary filtration system, and second compartment is flowed into, then through two by the filtering of by-pass filtration sieve The filtering of grade filter screen flows into third compartment, is provided with circular hole in third compartment lower end, cutting fluid 32 enters pipe by circular hole Road inflow is shut off in water tank 7, and the water tank that shuts off is rectangle uncovered babinet, and volume should be greater than being equal to cutting fluid water tank 1, shut off The lower end water outlet of water tank 7 is equipped with automatically controlled flow valve 29,29 model normally closed type 2P025-06-08 electromagnetism of solenoid electric valve Valve, the control line of solenoid electric valve 29 are connected to the DQa output ports of the next programmable controller 38, the next programmable controller 38 under the control of upper industrial personal computer 35, controls the output flow of solenoid electric valve 29；

The present invention can be carried out at the same time two filters reliability test, and filter can be other kinds of mistake Equipment is filtered, simply installation and debugging need to be only carried out to it and can be carried out corresponding reliability test.

Three, cutting fluid conveying mechanisms

The cutting fluid conveying mechanism is to include cutting fluid water tank 1, low liquid level warning device 2, high level alarm 3, water Pump 4, cutting fluid delivery pipe 6.

The cutting fluid water tank 1 is the case member of cuboid uncovered, is placed on the bottom of single unit system, cutting fluid Cutting fluid input pipe and cutting fluid delivery pipe 6 are installed in the top of water tank 1 respectively, and cutting fluid delivery pipe 6 is pipe, by cutting fluid water It is passed through in case 1, cutting fluid is sent to water tank 12, water pump 4, water are installed in the output channel side on 1 top of cutting fluid water tank Pump 4 is fixed using 4 bolts by the mounting flange of water pump 4 with cutting fluid water tank 1, and the side of water pump 4 is pacified using adhesive means Holding water pump temperature sensor 5 installs 3 low liquid level warning devices 2, high level alarm 3,3 respectively on 1 inner wall of cutting fluid water tank A low liquid level warning device 2 is parallel to the bottom end that horizontal plane is installed on cutting fluid water tank 1, and 3 high level alarms 3 are parallel to level Face is installed on the inner wall top of cutting fluid water tank 1；During work, cutting fluid 32 flows into the water that shuts off after the filtering of filter mechanism In case 7, under the control of automatically controlled flow valve 29, it is transported in cutting fluid water tank 1, is then extracted out by water pump 4, it is defeated via cutting fluid Pipe 6 is sent to be transported to 24 top of iron core.

At the DQa output ports of the next programmable controller 38 of control line access of the water pump 4, pass through upper industry control The control of machine 35, the next PLC technology 38 control the working condition of water pump 4

Due to there is phenomena such as leakage, evaporation, cutting fluid 32 is lost comparatively fast when in use, in order to prevent 32 mistake of cutting fluid It is few, the circulatory system is caused to can not work normally, low liquid level warning device 2, high level alarm 3 in cutting fluid water tank 1 are installed, are The reliability of test low liquid level warning device 2 and high level alarm 3,3 low liquid level reports of parallel installation in cutting fluid water tank 1 Alert device 2 and high level alarm 3, survey is simultaneously participated in for same 3 low liquid level warning devices 2 of liquid level or 3 high level alarms 3 Examination.

4th, status monitoring alarm mechanism

The status monitoring alarm mechanism includes the identical cutting fluid pollution sensing of 5,6 structures of water pump temperature sensor The identical filter device liquid level sensor 10 of 8,4 structures of device, flow pressure meter 15, iron core temperature sensor 25, shut off water tank Liquid level sensor 28, high water tank sensor 30, liquid quality sensor 31, alarm 37, data collecting card 36, signal wire 40 With embedded type C ompactRIO controllers 41.

The water pump temperature sensor 5 is patch type platinum resistance PT100 temperature sensors, is mounted on by adhesive means The shell side of water pump 4, the acquisition port of water pump temperature sensor 5 are connected the data acquisition of data collecting card 36 by signal wire 40 RTD interfaces, the model NI CompactRIO modules of data collecting card 36, temperature acquisition card model NI9216, data acquisition Card 36 is card slot type capture card, and the card of embedded type C ompactRIO controllers is fixed on by the spring terminal on data collecting card 36 In slot, it is connect by embedded type C ompactRIO controllers by USB with upper industrial personal computer, exports each data collecting card 36 and acquired Data.

8 quantity of cutting fluid contaminant sensor is 6, and model OpcomII is separately mounted to No.1 filter device 9 and No. two filter devices 27 in, each filter device is divided into 3 compartments by two filter screens, in each compartment middle-range 1 cutting fluid contaminant sensor 8 is installed, the signal wire of cutting fluid contaminant sensor 8 passes through filtering on the box body wall from bottom 3cm The RTD interfaces of device and data collecting card connect, and cutting fluid contaminant sensor 8 tests 32 impurity of cutting fluid in each compartment respectively Granule density, fluid concentration etc., data collecting card 36 is embedded in the card slot of embedded type C ompactRIO controllers, by embedded CompactRIO controllers by USB and upper industrial personal computer connect by signal progresss is corresponding handle after be transmitted to upper industrial personal computer In 35, by comparing the data of 3 cutting fluid contaminant sensors 8 in each filter device, filter device strainability is learnt And 32 clean level of cutting fluid after filtering, it is cut by the water outlet for comparing No.1 filter device 9 and No. two filter devices 27 The data of liquid contaminant sensor 8 can compare the strainability of two kinds of filter devices.

10 quantity of filter device liquid level sensor is 4, model star instrument CYW11 throw-in type liquid transmitters, Filter device liquid level sensor 10 is cylinder, and measurement method is throw-in type, and liquid level liquid level sensor 10 is put into liquid i.e. Can, measurable range should be higher than that the container height of filter device, the No.1 filter device 9 being mounted on being respectively perpendicular and No. two In three compartments for thering is filter screen to be divided into of filter device 27, filter device liquid level sensor 10 and data collecting card 36 RTD interfaces are connected by signal wire 40, when one of filter device liquid level sensor 10 shows that liquid level is excessively high, illustrate this The filter screen of position occurs to block or filter screen strainability reduces, and upper industrial personal computer 35 controls the next PLC technology Device 38 makes alarm 37 sound, the next programmable controller 38 be Siemens's S200 programmable controllers, the next PLC technology Device 38 is connect by RS484 data-interfaces with upper industrial personal computer, and the power cord positive and negative anodes of alarm 37, which are respectively connected to bottom, to be compiled DQa0 and the DQA1L port of process control control the power on/off of DQa0 ports by the next PLC technology 38, realize control alarm The alarm of device 37 opens and closes.

The flow pressure meter 15 is ND300 eddy-current flowmeters, and it is defeated to be mounted on cutting fluid by included clamping screw Send the top of pipe 6, the output flow and pressure of cutting fluid 32, the data that flow pressure meter 15 is acquired pass through letter during monitoring Number line 40 is connected to the RTD input ports of data collecting card 36, passes through USB and upper work by embedded type C ompactRIO controllers Signal be transmitted in upper industrial personal computer 35 after handling accordingly by the connection of control machine, when flow pressure meter 15 surveys cutting fluid 32 Flow become smaller, when pressure becomes larger, illustrate to block at the nozzle of cutting fluid delivery pipe 6, upper industrial personal computer 35 sends out signal, Alarm 37 sounds；

The iron core temperature sensor 25 is the NTC thermistor of 10K, is threadably mounted inside iron core 24 by included Threaded hole in, iron core temperature sensor 25 should have stronger diamagnetic function, and the data line of iron core temperature sensor 25 connect Enter the RTD input ports of data collecting card 36, data collecting card 36 is embedded in the card slot of embedded type C ompactRIO controllers, will The data acquired are connect by embedded type C ompactRIO controllers by USB with upper industrial personal computer, when 24 temperature of iron core is excessively high When, illustrate that 32 cooling capacity of cutting fluid declines, should suitably adjust the output flow of cutting fluid 32.

The high water tank sensor 28 that shuts off is model star instrument CYW11 throw-in type liquid transmitters, measurement method For throw-in type, the high water tank sensor 28 that will shut off is put into liquid, the side for the water tank 7 that shuts off is dropped in, for monitoring Shut off the liquid level of water tank 7.Range measured by high water tank sensor 28 of shutting off should be greater than shutting off the container height of water tank 7.

The high water tank sensor 30 is model star instrument CYW11 throw-in type liquid transmitters, and measurement method is throws Enter formula, high water tank sensor 30 is put into liquid, be dropped in the side in cutting fluid water tank 1, cut for monitoring Liquid level in liquid water tank 1.Liquid level range should be greater than the container of cutting fluid water tank 1 measured by high water tank sensor 30 Highly.8- liquid levels liquid level sensor 10

The liquid quality sensor 31 of the model OpcomII is mounted on the bottom of cutting fluid water tank 1, for monitoring 32 solution quality of cutting fluid in cutting fluid water tank 1 detects its whether rotten, pollution level etc..

The alarm 37 is that model LTE-1101J rotates quick-fried sudden strain of a muscle alarm lamp, power supply power cord positive and negative anodes difference DQa0 and the DQA1L port of the next programmable controller 38 of access, DQa0 ports are controlled by the next programmable controller 38 Power on/off realizes that the alarm of control alarm 37 opens and closes.

Each sensor is connect by signal wire 40 with the RTD input ports of data collecting card 36, and data collecting card 36 is embedded in In the card slot of embedded type C ompactRIO controllers, the data acquired are passed through into USB by embedded type C ompactRIO controllers It is connect with upper industrial personal computer, upper industrial personal computer 35 is connect with the next programmable controller 38 using RS484 data lines, when generation event During barrier, the start and stop of upper the next PLC technology control alarm 37 of industrial personal computer control.

Five, automatic controls

The automatic controls includes upper industrial personal computer 35, the next programmable controller 38, electromagnet controller (39)。

The 38 model Siemens S200 of the next programmable controller, passes through RS484 signal wires and upper industrial personal computer 35 connections.

The electromagnet controller (39) is connect with upper industrial personal computer 35 by RS232 data lines, electromagnet controller 39 output terminal is connect with two terminals of coil 19.Upper industrial personal computer 35 controls 39 output current of electromagnet controller, from And the magnetic field size that control coil 19 generates, control the calorific value of iron core 24.

A kind of reliability test of machining center cutting liquid cooling system is divided into 3 kinds of working conditions, respectively For normal condition, water tank low liquid level state and water tank high liquid level state.

The normal condition is steady test mode, and water pump 4 works normally under nominal power, and electronic fuel injection 18 exists Under the control of the next programmable controller 38, oil spout is carried out at regular time and quantity, and Work condition analogue mechanism normal work passes through upper industry control Machine 35 controls 15 measurement of discharges of flow and flow pressure meter of automatically controlled flow valve 29 equal, ensures that cutting fluid 32 is in stablize and recycles State.

In normal state, the water level in cutting fluid water tank 1 should be at normal condition, and each sensor reading is steady, works as stream When measuring the display flow reduction of pressure gauge 15 or pressure increase, illustrate that 6 nozzle of cutting fluid delivery pipe blocks；Work as temperature sensing When 25 displays temperature of device increases, illustrate that 32 flow of cutting fluid is smaller, flow should be increased；When 25 displays temperature of temperature sensor is too low When, illustrate that 32 flow of cutting fluid is excessive, the flow of the suitably adjustment cutting fluid 32 of water pump 4 can be controlled by upper industrial personal computer 35； When filter device liquid level sensor 10 shows that liquid level is excessively high, illustrate that filter device blocks, the next programmable controller 38 Control alarm 37 works, and device is shut down, and investigates failure；In normal state due to automatically controlled 29 output flow of flow valve and flow 15 output flow of pressure gauge is equal, therefore single unit system should be at equilibrium state, when 7 liquid level of water tank of shutting off reduces, cutting fluid When 1 liquid level of water tank increases, illustrate that filter device or 32 nozzle of cutting fluid block, cutting fluid 32 can not normal circulation；When cut When 7 liquid level of flowing water case increases, when 1 liquid level of cutting fluid water tank reduces, illustrate that water pump 4 can not normal pumping, filter device or cutting Plugging fault or mechanical breakdown occur for 6 nozzle of liquid delivery pipe.

The water tank low liquid level state in this case, can test water pump 4 for water pump 4 is accelerated to accelerate state of drawing water Fan-out capability, the alarm performance of the maximum filtering performance of filter device and the low liquid level warning device 2 in cutting fluid water tank 1, be Raising test mass installs multiple low liquid level warning devices 2 in water tank, and each low liquid level warning device 2 is mutual indepedent, Ke Yitong When test the alarm performances of multiple low liquid level warnings 2.Water pump 4 draws water beyond rated power in this case, automatically controlled flow 29 output flow of valve remains unchanged, and output flow is less than the output flow that flow pressure meter 15 is surveyed；In this case, shut off water 7 water level of case increases, and 1 water level of cutting fluid water tank reduces, when high water tank sensor 30 shows that liquid level is too low, low liquid level warning device 2 do not alarm, and illustrate that low liquid level warning device 2 breaks down.

The water level high liquid level state is to test the alarm performance of high level alarm 3, in this case, at water pump 4 In normal operating conditions, automatically controlled flow valve 29 controls output flow maximum, and 7 water level of water tank that shuts off reduces, 1 water level of cutting fluid water tank Raising, when high water tank sensor 30 shows that water level reaches alarm liquid level, high level alarm 3 should start to alarm at this time, electricity Control flow valve 29 is closed, and after water level is in plateau, automatically controlled flow valve 29 exports, and is controlled by upper industrial personal computer 35 automatically controlled 29 flow of flow valve is equal with 15 output flow of flow pressure meter.

Claims (9)

1. a kind of machining center cuts liquid cooling system reliability test, which is characterized in that the machining center cutting Liquid cooling system reliability test includes Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism, status monitoring alarm Mechanism and automatic controls；

The Work condition analogue mechanism includes babinet (12)；

The filter mechanism includes automatically controlled flow valve (29) and filter screen (34)；

The cutting fluid conveying mechanism includes cutting fluid water tank (1) and cutting fluid delivery pipe (6)；

By babinet (12) mounted on top, filter mechanism is mounted under Work condition analogue mechanism for the Work condition analogue mechanism Face, cutting fluid conveying mechanism are mounted below filter mechanism, and filter screen (34) is in the bottom of babinet (12), connection electricity The pipeline for controlling flow valve (29) is inserted into cutting fluid water tank (1), and cutting fluid water tank (1) is connect with cutting fluid delivery pipe (6) lower end；

The status monitoring alarm mechanism is mounted in Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism, automatic to control Signal wire is used between mechanism processed and Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism and status monitoring alarm mechanism (40) it connects.

2. machining center described in accordance with the claim 1 cuts liquid cooling system reliability test, which is characterized in that described Status monitoring alarm mechanism be mounted on Work condition analogue mechanism, filter mechanism, refer in cutting fluid conveying mechanism：The state Monitoring, alarming mechanism includes the identical cutting fluid contaminant sensor (8) of water pump temperature sensor (5), 6 structures, 4 structure phases Filter device liquid level sensor (10) together, flow pressure meter (15), iron core temperature sensor (25), the high water tank that shuts off sensing Device (28), high water tank sensor (30), liquid quality sensor (31) and alarm (37)；

The shell side of water pump temperature sensor (5) water pump (4) in cutting fluid conveying mechanism；6 cutting fluids Contaminant sensor (8) is separately mounted in the No.1 filter device (9) in filter mechanism and No. two filter devices (27), 4 The No.1 filter device (9) that the identical filter device liquid level sensor (10) of structure is mounted on being respectively perpendicular is filled with No. two filterings Put in (27), one end of flow pressure meter (15) is connect with the top of cutting fluid delivery pipe (6), flow pressure meter (15) it is another The connecting pipe at end is inserted into babinet (12), and iron core temperature sensor (25) is internal mounted on iron core (24), and shut off high water tank In the one side wall of the water tank that shuts off (7) of the sensor (28) in filter mechanism, high water tank sensor (30) is mounted on cutting Cut in the cutting fluid water tank (1) in liquid conveying mechanism, liquid quality sensor (31) mounted on the bottom of cutting fluid water tank (1), Alarm (37) is on the cabinet of upper industrial personal computer (35).

3. machining center described in accordance with the claim 1 cuts liquid cooling system reliability test, which is characterized in that described Automatic controls and Work condition analogue mechanism, filter mechanism, cutting fluid conveying mechanism and status monitoring alarm mechanism between adopt Referred to signal wire (40) connection：

The automatic controls includes upper industrial personal computer (35), data collecting card (36), the next programmable controller (38) And electromagnet controller (39)；

The upper industrial personal computer (35) is connect with data collecting card (36), upper industrial personal computer (35) and the next programmable controller (38) it connects, upper industrial personal computer (35) connect with electromagnet controller (39)；

The data collecting card (36) in status monitoring alarm mechanism water pump temperature sensor (5), 6 structures it is identical The identical filter device liquid level sensor (10) of cutting fluid contaminant sensor (8), 4 structures, flow pressure meter (15), iron core temperature Degree sensor (25), the high water tank sensor (28) that shuts off, high water tank sensor (30) are adopted with liquid quality sensor (31) It is connected with signal wire (40)；

The electricity in electronic fuel injection (18), filter mechanism in the next programmable controller (38) and Work condition analogue mechanism Magnetic control valve (29) is connect with the alarm (37) in status monitoring alarm mechanism；

The electromagnet controller (39) is connect with the both ends of the coil (19) in Work condition analogue mechanism.

4. machining center described in accordance with the claim 1 cuts liquid cooling system reliability test, which is characterized in that described Work condition analogue mechanism include cutting thermal cycle simulation, greasy dirt simulator and impurity simulator；

The cutting thermal cycle simulation includes the identical coil branch of the identical iron core support angle steel (13) of 4 root architectures, 4 root architectures Support angle steel (14) and solenoid housing component；

The greasy dirt simulator includes fuel tank (16), petroleum pipeline (17) and electronic fuel injection (18)；

The impurity simulator includes the iron filings (26) that DRY CUTTING generates；

The solenoid housing component passes through the identical iron core support angle steel (13) of the 4 root architectures coil branch identical with 4 root architectures Support angle steel (14) in the babinet (12), fuel tank (16) mounted on the top of tank wall on the left of babinet (12), fuel tank (16) Oil outlet is directed downward, and the oil outlet of fuel tank (16) is connect with one end of petroleum pipeline (17), and the other end of petroleum pipeline (17) passes through Through-hole on the left of babinet (12) on tank wall, and connect with electronic fuel injection (18), the nozzle alignment coil of electronic fuel injection (18) Iron core (24) in housing unit, iron filings (26) are placed on the bottom of babinet (12), and the piling height in babinet (12) is big In equal to 10cm.

5. cut liquid cooling system reliability test according to the machining center described in claim 1 or 4, which is characterized in that The babinet (12) is the housing component that cross section is square annular, top uncovered, be symmetrically provided in bottom two it is rectangular The through-hole for being used to install filter screen (34) of shape, the identical support knot of double-layer structure is welded in the surrounding of babinet (12) inner wall Structure, every layer of support construction include the support angle steel (33) that 4 cross sections are L-type, are provided in the middle part of every support angle steel (33) Two circular through-holes for fixed coil support angle steel (14) and iron core support angle steel (13), 4 support angle steels (33) are first Tail is mutually grounded in the horizontal plane for being fixed on same layer, and two layers is 90mm by the spacing of support construction that support angle steel (33) forms.

6. cut liquid cooling system reliability test according to the machining center described in claim 4, which is characterized in that described Solenoid housing component include coil (19), solenoid housing (20), outer ring waterproof washer (21), inner ring waterproof washer (22), line Enclose case lid (23) and iron core (24)；

The solenoid housing (20) is that the columnar bottom end of annulus is open hollow structural members, and the top of solenoid housing (20) is all Side is equably provided with for the threaded hole of fixed coil support angle steel (14), and insulated paint is coated in solenoid housing (20) inner cavity, Coil (19) is placed in the inner cavity of solenoid housing (20), and the both ends of coil (19) conducting wire pass through the two of solenoid housing (20) side Stretched out in a through-hole, and using fluid sealant encapsulated coil housing (20) two through-holes, the inner ring of solenoid housing (20) bottom end with Inner ring waterproof washer (22) and outer ring waterproof washer (21) are installed in outer ring respectively, solenoid housing lid (23) by the bolt of outer ring and The bolt of inner ring is fixed on the bottom end of solenoid housing (20)；Iron core (24) is the columnar hollow structural members of annulus, and temperature is placed in inside Sensor (25) is spent, iron core (24) bottom end periphery is equably provided with to be connected for iron core (24) and iron core support angle steel (13) inner end The threaded hole connect, the axis of iron core (24) are overlapped with the axis of solenoid housing (20).

7. cut liquid cooling system reliability test according to the machining center described in claim 4, which is characterized in that described Coil support angle steel (14) and iron core support angle steel (13) be U-shaped steel, both ends are respectively arranged with 1 pair of circular through hole and 1 pair is long Through-hole, the inner end of coil support angle steel (14) use spiral shell by the threaded hole of circular through hole and solenoid housing (20) top position It tethers and connects, the outer end of coil support angle steel (14) passes through long strip through hole and the L-type support angle steel being welded on babinet (12) inner wall (33) two intermediate through-holes are fixed by bolts, and the axis of symmetry of the axis of rotation and babinet (12) of solenoid housing (20) is total to Line；The inner end of iron core support angle steel (13) is connected by screw bolts by the threaded hole of circular through hole and iron core (24) bottom position, The long strip through hole of the outer end of iron core support angle steel (13) and the L-type support angle steel (33) for being welded on babinet (12) inner wall lower floor are intermediate Two through-holes be connected by screw bolts, the axis of rotation of iron core (24) and the rotation conllinear of solenoid housing (20).

8. machining center described in accordance with the claim 1 cuts liquid cooling system reliability test, which is characterized in that described Filter mechanism further include the identical cutting fluid drainage system (11) of the water tank that shuts off (7), No.1 filter device (9), 2 structures, No. two filter devices (27) and automatically controlled flow valve (29)；

The identical filter screen (34) of 2 structures is rectangle reticular structure part, and the identical filter screen (34) of 2 structures is pacified In the identical rectangular through holes of 2 structures in babinet (12) bottom, the identical filter screen (34) of 2 structures is installed below The identical cutting fluid drainage system (11) of 2 structures, the underface of the identical cutting fluid drainage system (11) of 2 structures by it is right extremely A left side is equipped with No.1 filter device (9) and No. two filter devices (27), the water tank that shuts off (7) mounted on No.1 filter device (9) with The underface of No. two filter devices (27), No.1 filter device (9) are respectively adopted pipeline insertion with No. two filter devices (27) and cut In flowing water case (7), automatically controlled flow valve (29) is on the bottom plate of the water tank that shuts off (7).

9. machining center described in accordance with the claim 1 cuts liquid cooling system reliability test, which is characterized in that described Cutting fluid conveying mechanism further include 3 low liquid level warning devices (2), 3 high level alarms (3) and water pump (4)；

The cutting fluid water tank (1) is the case member of cuboid, and it is defeated that cutting fluid is installed on the top of cutting fluid water tank (1) respectively Enter pipe and cutting fluid delivery pipe (6), water pump is installed on the left of the cutting fluid delivery pipe (6) on cutting fluid water tank (1) top (4), 3 low liquid level warning devices (2) and 3 high level alarms (3) are installed respectively on the inner wall of cutting fluid water tank (1), 3 Low liquid level warning device (2) is installed on the inner wall bottom end of cutting fluid water tank (1), 3 high liquid level warnings with being parallel to same level Device (3) is installed on the inner wall top of cutting fluid water tank (1) with being parallel to same level, is equipped with and passes through in cutting fluid water tank (1) The cutting fluid (32) under automatically controlled flow valve (29) control after filter mechanism filtering.