CN105334057A - Reliability test device capable of online simulating dynamic and static cutting forces of motorized spindle - Google Patents

Reliability test device capable of online simulating dynamic and static cutting forces of motorized spindle Download PDF

Info

Publication number
CN105334057A
CN105334057A CN201510827288.4A CN201510827288A CN105334057A CN 105334057 A CN105334057 A CN 105334057A CN 201510827288 A CN201510827288 A CN 201510827288A CN 105334057 A CN105334057 A CN 105334057A
Authority
CN
China
Prior art keywords
loading unit
loading
voice coil
unit
pedestal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510827288.4A
Other languages
Chinese (zh)
Other versions
CN105334057B (en
Inventor
陈传海
朱光
杨兆军
田海龙
鲍俊
陈磊
赵星汉
王升旭
陈玮峥
杨丁宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Research Institute Of Jilin University
Original Assignee
Jilin University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jilin University filed Critical Jilin University
Priority to CN201510827288.4A priority Critical patent/CN105334057B/en
Publication of CN105334057A publication Critical patent/CN105334057A/en
Application granted granted Critical
Publication of CN105334057B publication Critical patent/CN105334057B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention relates to a reliability test device for a motorized spindle and specifically relates to a reliability test device capable of online simulating dynamic and static cutting forces in practical processing of the motorized spindle. The reliability test device comprises a tested motorized spindle system part, a torque loading part, a simulating part, a veering part and a control part, wherein the tested motorized spindle system part is coaxially connected with the torque loading part; the simulating part is vertical to the tested motorized spindle system part and the torque loading part; the axes of radial and axial force loading units are parallel to each other; a loading bar of a radial force loading unit is in contact with a connecting shaft loading unit; a loading end at the front end of a veering swing arm is in contact with an axial cover plate of the connecting shaft loading unit; a groove at the other end of a veering swing arm is in contact with the loading bar of an axial force loading unit; the control part is connected with a dynamometer and the radial and axial force loading units. The invention provides an improved test device capable of online simulating dynamic and static cutting forces of the motorized spindle, which can simulate real-time working condition, acquire the fault and maintenance data of the motorized spindle system and discover the weak link.

Description

The electro spindle reliability test of online simulation sound state cutting force
Technical field
The present invention relates to a kind of reliability test of electro spindle, specifically a kind of can by the reliability test of sound state cutting force in voice coil motor and the actual processing of dynamometer machine online simulation electro spindle.
Background technology
Numerically-controlled machine is the indispensable manufacturing equipment of a country, is manufacturing foundation stone, and along with country is to the continuous increase of major equipment manufacturing industry supporting dynamics, China has shot up as the first in the world lathe big producing country and consumption big country.Current domestic numerical control lathe achieves obvious progress in some important indicators.But along with increasing of function, fault also increases, and integrity problem is serious thereupon.The height of NC Machine Quality has directly reacted a national technical merit, and wherein integrity problem is the major issue of restriction Development of CNC Machine Tools, and improving reliability is improve the key of numerically-controlled machine overall performance and technology.Wherein, the reliability level of the functional part that numerically-controlled machine is important directly determines again the level of this numerically-controlled machine complete machine.
Electro spindle is critical function parts of numerically-controlled machine, and its reliability level directly affects the reliability level of complete machine, so to be necessary the research of main shaft reliability and extremely important, and carrying out of fail-test is exactly an important channel.The existing research about electric main shaft of digital control machine tool system reliability technology mainly adopts the methods such as FMEA, FTA to carry out statistical study to its fault mode, failure cause, find its weak link, or adopt various fuzzy forecast method to carry out failure rate prediction to it, and then take corresponding preventive measure to reduce its failure rate.But the realization of said method needs a large amount of fault datas and mantenance data.As the numerically-controlled machine of process equipment, the acquisition of its fault data has field reliability test and laboratory reliability test two kinds of methods.Obtained the method for fault data by field reliability test, a large amount of manpowers, financial resources and material resources need be consumed.Room fail-test can quick obtaining fault receipt and mantenance data by experiment, and experimental enviroment is controlled, and process of the test is reproducible.
Domestic at present have the simple main shaft reliability test device of some functions, the reliability test bench publication number that such as contact loads: the machine tool chief axis reliability test bench of CN104006957A, electro-hydraulic servo and dynamometer machine mix-loaded, publication number: CN202869792U etc., the former is that integration loads, meeting bad student additional torque, shorten device longevity, reliability is not high; There is the problem that loading frequency does not increase, loading force is different in the latter, other devices problem such as also ubiquity is above-mentioned, causes the working condition of test simulation and the actual condition of electro spindle to have very large gap.
Summary of the invention
The invention provides one and can simulate real-time working condition, the fault data of electric chief axis system and mantenance data can be obtained the short time, find its weak link, and carry out Curve guide impeller and provide the foundation, what the reliability raising for numerically-controlled machine complete machine contributed to the test unit of electro spindle online simulation sound state cutting force, can solve the above-mentioned deficiency of existing electro spindle reliability test bench.
Technical solution of the present invention accompanying drawings is as follows:
An electro spindle reliability test for online simulation sound state cutting force, this device comprises tested electric chief axis system part, moment of torsion loading section, simulation loading part, knuckle section 9 and control section; Wherein said tested electric chief axis system part and the coaxial connection of moment of torsion loading section; Described simulation loading part is mutually vertical with the axial line of moment of torsion loading section with electric chief axis system part; Radial force loading unit 4 in described simulation loading part and axial force loading unit 10 axis parallel; The described loading bar 20 of radial force loading unit 4 end contacts with the hemispherical groove of the housing side of the coupling shaft loading unit 5 in moment of torsion loading section; The briquetting semicircle loading end 32 of swing arm 25 front end that turns in described knuckle section 9 contacts with the anterior cover plate of coupling shaft loading unit 5 axis; The described groove of the other end of swing arm 25 that turns to contacts with the loading bar 20 of axial force loading unit 10 end in simulation loading part; Described control section is connected with axial force loading unit 10 with the dynamometer machine 7 in moment of torsion loading section, radial force loading unit 4.
Described tested electric chief axis system part comprises base back-up block 1, main shaft pedestal 2 and electro spindle 3; Described electro spindle 3 is arranged on by the flange of electro spindle 3 front end to be embraced in clamp mechanism 41, embraces clamp mechanism 41 and is fixed on main shaft pedestal 2; Described main shaft pedestal 2 is arranged on the top of base back-up block 1; Base back-up block 1 is arranged on the top of ground black iron 11; The two ends of described main shaft pedestal 2 are fixedly connected with ground black iron 11 by bolt.
Described simulation loading part also comprises moment of torsion loading unit; Wherein said radial force loading unit 4 is identical with axial force loading unit 10 structure to be arranged in parallel, and is voice coil motor; Described radial force loading unit 4 comprises radial force loading unit pedestal 12, voice coil motor base 13, voice coil motor stiff end 14, voice coil motor movable end 15, oriented module 16, grating scale blade 17, grating scale reader 18, read head web member 19, loading bar 20 and disc type force snesor 21; Described radial force loading unit pedestal 12 is fixed on ground black iron 11; There is guide rail 35 above described voice coil motor base 13 and be fixed on radial force loading unit pedestal 12; Described voice coil motor stiff end 14 is fixedly connected with the baffle part of voice coil motor base 13; Described voice coil motor movable end 15 and voice coil motor stiff end 14 are flexibly connected; The top that described oriented module 16 is arranged on voice coil motor base 13 is fixedly connected with voice coil motor movable end 15 with its left end, and its upper end is fixedly connected with slide block 36, and slide block 36 and guide rail 35 are slidably matched; Described grating scale blade 17 is fixedly connected with oriented module 16; Described grating scale reader 18 is fixedly connected with read head web member 19; Described read head web member 19 is fixed on voice coil motor base 13; Described grating scale blade 17 is slidably matched with grating scale reader 18; Described disc type force snesor 21 is fixedly connected with oriented module 16, and disc type force snesor 21 and loading bar 20 are threaded, and wherein the front end of loading bar 20 is dome-types.
Described moment of torsion loading section also comprises dynamometer machine pedestal 8, S type pull pressure sensor 40, high-speed membrane coupler 6 and coupling shaft loading unit 5; Described dynamometer machine 7 is fixed on dynamometer machine pedestal 8; The shell that described S type pull pressure sensor 40 is fixed on dynamometer machine 7 is fixed on dynamometer machine pedestal 8; Described dynamometer machine pedestal 8 is fixed on ground black iron 11; Described coupling shaft loading unit 5 one end is connected with high-speed membrane coupler 6, and the other end is connected with electro spindle 3; Described coupling shaft loading unit 5 inside is bearing, bearing inner race is engaged on coupling shaft, and bearing outer ring is engaged on loading unit housing, and all there is end cap seal at bearing two ends, have lubrication port above the housing of coupling shaft loading unit 5, side has the hemispherical groove matched with loading bar 20; Described coupling shaft loading unit 5, with radial force loading unit 4 and axial force loading unit 10 three axis with high; Described electro spindle 3, coupling shaft loading unit 5 and dynamometer machine 7 three are coaxial.
Described knuckle section 9 also comprises steering unit pedestal 22, steering unit axial force loads briquetting 23, the taper roll bearing 28 of end cap 27, band stop collar, thrust ball bearing 29, adjusting nut 30 and arm shaft 31; Wherein said turns to swing arm 25 for " L " type, and its bending part is provided with endoporus, and this endoporus matches with the band taper roll bearing 28 of stop collar and the outer shroud of thrust ball bearing 29; The taper roll bearing 28 of described band stop collar, the inner ring sleeve of thrust ball bearing 29 are above arm shaft 31, the end cap of its upper end is fixed by end cap and steering axle set bolt 26, and end cap and steering axle set bolt 26 are threaded with the threaded hole in arm shaft 31; Match with the cylindrical hole of steering unit pedestal 22 upper surface in the lower end of arm shaft 31; Described steering unit pedestal 22 is fixed on ground black iron 11; Described steering unit axial force loading briquetting 23 is arranged on and turns to one end of swing arm 25 and be fixedly connected with turning to swing arm 25 by pivoted arm coupling bolt 24; The front end that described steering unit axial force loads briquetting 23 is briquetting semicircle loading end 32, and briquetting semicircle loading end 32 contacts with the anterior cover plate of coupling shaft loading unit 5 axis; The described other end of swing arm 25 that turns to turns to swing arm to load groove 33, and this groove 33 contacts with the loading bar 20 of axial force loading unit 10 end.
Described control section is made up of the servo-driver of industrial computer, ACS controller, radial force loading unit, the servo-driver of axial force loading unit and frequency converter; Described ACS controller is up to be connected by EtherCAT agreement general hypervelocity Ethernet fieldbus with industrial computer; Described ACS controller down direction is electrically connected with the frequency converter of the servo-driver of radial force loading unit, the servo-driver of axial force loading unit and dynamometer machine 7 respectively; Described radial force loading unit 4 is electrically connected with the servo-driver of radial force loading unit, and described axial force loading unit 10 is electrically connected with the servo-driver of axial force loading unit; Disc type force snesor 21 in described radial force loading unit 4, axial force loading unit 10 and the S type pull pressure sensor 40 in moment of torsion loading section are electrically connected with ACS controller, form complete closed-loop control, described industrial computer is electrically connected with man-machine interface.
Beneficial effect of the present invention is: the present invention adopts voice coil motor to carry out the loading of power, and electric energy conversion can be directly rectilinear motion by voice coil motor, by changing the amplitude of the accurate control of size of electric current.Voice coil motor electric current and power have good line style relation, size and the frequency of power output just can be controlled by the electric current controlling voice coil motor, voice coil motor exports Ampère force simultaneously, voice coil motor inside does not have mechanical wear, loading end is Hard link simultaneously, improve rigidity and the response of charger, the dynamic force of exportable more high frequency.Generally speaking, voice coil motor solves loading frequency and does not increase, and loading force is different, and produces the problem of additional torque, and the same frequency high frequency that can realize Axial and radial power and moment of torsion loads.ACS controller also adopts hypervelocity Ethernet fieldbus (EtherCAT) technology, transfer rate other loading schemes far super, thus ensure that high frequency loads the accurate reproduction of lower loading force.By high-precision pressure sensor feedback and the computing of ACS controller, the loading of synchro control radial force, axial force and moment of torsion, wherein the displacement accuracy of grating scale feedback can reach 0-1 μm, ensures real-time rigid contact, greatly improves the reliability of testing table itself, response level.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention;
Fig. 2 is another kind of angle perspective view of the present invention;
Fig. 3 is radial loading unit perspective view in the present invention;
Fig. 4 is the spatial structure decomposing schematic representation of radial loading unit in the present invention;
Fig. 5 turns to part isometric structural representation in the present invention;
Fig. 6 turns to part isometric STRUCTURE DECOMPOSITION schematic diagram in the present invention;
Fig. 7 is control principle drawing of the present invention.
Embodiment
Consult Fig. 1-Fig. 7, a kind of electro spindle reliability test of online simulation sound state cutting force, this device comprises tested electric chief axis system part, moment of torsion loading section, simulation loading part, knuckle section 9 and control section; Wherein said tested electric chief axis system part and the coaxial connection of moment of torsion loading section; Described simulation loading part is mutually vertical with the axial line of moment of torsion loading section with electric chief axis system part; Radial force loading unit 4 in described simulation loading part and axial force loading unit 10 axis parallel; The described loading bar 20 of radial force loading unit 4 end contacts with the hemispherical groove of the housing side of the coupling shaft loading unit 5 in moment of torsion loading section; The briquetting semicircle loading end 32 of swing arm 25 front end that turns in described knuckle section 9 contacts with the anterior cover plate of coupling shaft loading unit 5 axis; The described groove of the other end of swing arm 25 that turns to contacts with the loading bar 20 of axial force loading unit 10 end in simulation loading part; Described control section is connected with axial force loading unit 10 with the dynamometer machine 7 in moment of torsion loading section, radial force loading unit 4.
Consult Fig. 1, Fig. 2, described tested electric chief axis system part comprises base back-up block 1, main shaft pedestal 2 and electro spindle 3; Described electro spindle 3 is arranged on by the flange of electro spindle 3 front end to be embraced in clamp mechanism 41, described main shaft pedestal 2 has T-slot, embrace clamp mechanism 41 to be arranged on main shaft pedestal 2 by T-shaped bolt and to become vertical direction with T-slot, aggregated(particle) structure can regulate the horizontal direction position of electro spindle 3; The top that described main shaft pedestal 2 bottom surface grinding is arranged on base back-up block 1 coordinates with it, and described base back-up block 1 can jointly regulate the vertical height of electro spindle 3 with main shaft pedestal 2 after grinding; And be fixedly connected with ground black iron 11 by bolt by the two ends of described main shaft pedestal 2, ensure the stability of electro spindle 3 mounting portion in loading procedure.
Consult Fig. 1, Fig. 2, described simulation loading part comprises radial force loading unit 4, axial force loading unit 10 and moment of torsion loading unit; Wherein said radial force loading unit 4 is identical with axial force loading unit 10 structure to be arranged in parallel, and is voice coil motor;
Consult Fig. 3, Fig. 4, described radial force loading unit 4 comprises radial force loading unit pedestal 12, voice coil motor base 13, voice coil motor stiff end 14, voice coil motor movable end 15, oriented module 16, grating scale blade 17, grating scale reading machine 18, read head web member 19, loading bar 20 and disc type force snesor 21;
Described radial force loading unit pedestal 12 and ground black iron 11 are bolted, the moon on radial force loading unit pedestal 12 can adjust position when shape groove coordinates with ground black iron 11, thus ensures that loading bar 20 is correctly loaded on the coupling shaft loading unit 5 that is loaded.
There is guide rail 35 to be arranged on radial force loading unit pedestal 12 above described voice coil motor base 13 and be attached thereto by set bolt 39.
Described voice coil motor stiff end 14 and the baffle part of voice coil motor base 13 are bolted;
Described voice coil motor movable end 15 and voice coil motor stiff end 14 are flexibly connected;
The top that described oriented module 16 is arranged on voice coil motor base 13 is fixedly connected with pilot unit coupling bolt 34 by voice coil motor with voice coil motor movable end 15 with its left end, its upper end is fixedly connected with by bolt 37 with slide block 36, slide block 36 and guide rail 35 are slidably matched, thus ensure the displacement that radial force loading unit 4 i.e. voice coil motor exports and guide rail 35 point-blank, when after the voice coil motor energising that radial force loading unit 4 represents, hot-wire coil can produce axial Ampère force under magnetic fields, and by grating scale blade 17, grating scale reading machine 18, the displacement that the feedback of disc type force snesor 21 thus control exports and power output, described grating scale blade 17 and oriented module 16 are bolted to connection, described grating scale reading machine 18 is fixedly connected with read head web member 19, described read head web member 19 is connected on voice coil motor base 13 by grating reading head set bolt 38, described grating scale blade 17 is slidably matched with grating scale reading machine 18 thus detects displacement and feed back, wherein the precision of grating scale can reach 0.1 μm, the signal of grating scale feedback passes to ACS controller, and ACS controller, can the output of high-precision command displacement through computing.Described disc type force snesor 21 and oriented module 16 are bolted to connection, disc type force snesor 21 and loading bar 20 are threaded, wherein the front end of loading bar 20 is dome-types, match with the hemispherical groove on the coupling shaft loading unit 5 be loaded, thus ensure it is point cantact, make loading force be axis direction.During on-test, the voice coil motor output displacement vertically first making radial force loading unit 4 represent, loading bar 20 is contacted firmly with hemispherical groove joined together, force snesor feeds back signal to ACS controller, control system controls voice coil motor and starts to export loading force, continue the loading force that can obtain feedback to the voice coil motor energising that radial force loading unit 4 represents, due to the good line style relation of voice coil motor electric current and power, size and the frequency of power output just can be controlled by the electric current controlling voice coil motor, voice coil motor exports Ampère force simultaneously, voice coil motor inside does not have mechanical wear, loading end is Hard link simultaneously, improve rigidity and the response of charger, the dynamic force of exportable more high frequency.
Wherein in order to the voice coil motor of an application choice correct model, the peak value thrust needed for computing application and lasting thrust (RMS) are absolutely necessary.We can select peak value thrust and lasting thrust to be greater than the peak value thrust of computation and the motor model of lasting thrust (RMS) respectively.Very important according to required selection peak value thrust and lasting thrust in the application.
Peak value thrust according to Newton second law, F=ma.We can obtain required peak value thrust with the acceleration needed for known load and motion.
Continuing the loading spectrum of thrust needs by the sound state cutting force of required simulation, through calculating, wherein, continuing thrust (RMS) computing formula as follows:
F ( R M S ) = ( F P 2 × T 1 + F P 2 × T 2 ) / ( T 1 + T 2 + T 3 )
Wherein: F (RMS) is the power that squared root sign calculates, and unit is N; F pbe peak value thrust, unit is N; T1 is the acceleration time, and unit is s; T2 is deceleration time, and unit is s; T3 is dead time, and unit is s; Determine required stroke as required, run duration, and dead time, the half of run duration is the acceleration time, is generally deceleration time.
Lasting thrust and peak value thrust are selected in the requirement of the sound state loading force required by fail-test, and with this, type selecting is carried out to voice coil motor, and in conjunction with the gauge size of tested electro spindle, the structural design of loading section is carried out according to different demands, thus ensure that loading system meets required function requirement, and save space.
Consult Fig. 1, Fig. 2, described moment of torsion loading section comprises dynamometer machine 7, dynamometer machine pedestal 8, S type pull pressure sensor 40, high-speed membrane coupler 6 and coupling shaft loading unit 5;
The shell that described S type pull pressure sensor 40 is fixed on dynamometer machine 7 is fixed on dynamometer machine pedestal 8, realize the Real-Time Monitoring feedback of moment of torsion, dynamometer machine 7 is bolted on dynamometer machine several 8, and dynamometer machine several 8 is fixed on ground black iron 11 by bolt and the capable nut of T;
Described coupling shaft loading unit 5 one end is connected with high-speed membrane coupler 6, and the other end is made handle of a knife shape and is connected with electro spindle 3, and the effect of coupling shaft loading unit 5 radial force of loading and axial force is loaded into load on axle and be delivered on electro spindle 3.
Described coupling shaft loading unit 5 inside is bearing, bearing inner race coordinates on coupling shaft again, and bearing outer ring is engaged on loading unit housing, and all there is end cap seal at bearing two ends, have lubrication port above the housing of coupling shaft loading unit 5, side has the hemispherical groove matched with loading bar 20;
Described electro spindle 3, coupling shaft loading unit 5 and dynamometer machine three are coaxial, described coupling shaft loading unit 5, with radial force loading unit 4 and axial force loading unit 10 three with high, the necessary strict guarantee right alignment of assembling process, avoids main shaft to produce unnecessary additional load in the situation of running up.
Consult Fig. 5, Fig. 6, described knuckle section 9 comprises steering unit pedestal 22, steering unit axial force loading briquetting 23, turns to swing arm 25, end cap 27, the taper roll bearing 28 being with stop collar, thrust ball bearing 29 and arm shaft 31;
Wherein said turns to swing arm 25 for " L " type, and its bending part is provided with endoporus, and this endoporus matches with the band taper roll bearing 28 of stop collar and the outer shroud of thrust ball bearing 29; The taper roll bearing 28 of described band stop collar, the inner ring of thrust ball bearing 29 and arm shaft 31 are arranged on the upper of arm shaft 31, and adjust the height of bearing by adjusting nut 30.
The taper roll bearing 28 of described band stop collar, the inner ring of thrust ball bearing 29 and arm shaft 31 are matched to merge and are compressed by end cap and steering axle set bolt 26 by end cap 27, and end cap and steering axle set bolt 26 close with the corresponding threaded holes in arm shaft 31 thus compress end cap 27.
The lower end of described arm shaft 31 and the cylindrical hole of steering unit pedestal 22 upper surface are wringing fits, have higher requirements to the dimensional tolerence on the two surface.
Described steering unit axial force is loaded briquetting 23 and is arranged on one end of turning to swing arm 25 and is fixed by briquetting and pivoted arm coupling bolt 24;
Described steering unit pedestal 22 is fixed on ground black iron 11 by seat ground bolt and pressing plate, ensures the stability of sub-cell;
The front end that described steering unit axial force loads briquetting 23 is briquetting semicircle loading end 32, and briquetting semicircle loading end 32 contacts with the anterior cover plate of coupling shaft loading unit 5 axis, ensure that loading force axially transmits and is loaded on electro spindle 3; The described other end of swing arm 25 that turns to turns to swing arm to load groove 33, and this groove 33 contacts with the loading bar of axial force loading unit 10 end.
Fault detect record, the dynamic load of the electro spindle reliability test of online simulation sound state cutting force of the present invention load and are all realized by control section.
Consult Fig. 7, described control section is made up of the servo-driver of industrial computer, ACS controller, radial force loading unit, the servo-driver of axial force loading unit and frequency converter;
Described ACS controller is up to be connected by EtherCAT agreement general hypervelocity Ethernet fieldbus with industrial computer; Described ACS controller down direction is electrically connected with the frequency converter of the servo-driver of radial force loading unit, the servo-driver of axial force loading unit and dynamometer machine 7 respectively; Described radial force loading unit 4 is electrically connected with the servo-driver of radial force loading unit, and described axial force loading unit 10 is electrically connected with the servo-driver of axial force loading unit; Disc type force snesor 21 in described radial force loading unit 4, axial force loading unit 10 and the S type pull pressure sensor 40 in moment of torsion loading section are electrically connected with ACS controller, form complete closed-loop control, described industrial computer is electrically connected with man-machine interface.
ACS controller controls the servo-driver of radial force loading unit, the servo-driver of axial force loading unit and the frequency converter of dynamometer machine 7; Meanwhile, the upper man-machine interface of disc type force snesor 21 and S type pull pressure sensor 40 signal feedback of collecting to ACS controller and in industrial computer shows.
The step that control section controls electro spindle reliability test bench is as follows:
Step one, upper man-machine interface are worked out by C++, first on control inerface, input the test parameterss such as static load, dynamic load, test period, fault alarm parameter (i.e. the threshold value of the analog quantity such as electric current), upper industrial computer is responsible for parameters to be transferred in the next ACS controller;
Step 2, the next ACS controller pass through built-in coaxial algorithm, Collaborative Control frequency converter and servo-driver output load;
The signal that step 3, collection disc type force snesor 21 and S type pull pressure sensor 40 feed back, and compensated by built-in comparison algorithm;
Step 4, the signal such as electric current, the voltage sensor signal of collection and frequency converter recorded export host computer to and show;
Step 5, when associated analog value reaches threshold value, frequency converter sends alerting signal, and host computer procedure controls the conducting of warning circuit.
Principle of work of the present invention:
First subjects electro spindle 3 is arranged on main shaft pedestal 2, then electro spindle 3 connects handle of a knife side and is coaxially connected with coupling shaft loading unit 5, coupling shaft loading unit 5 is connected by high-speed membrane coupler 6 with dynamometer machine 7, and by regulating main shaft pedestal 2 and grinding base back-up block 1 to carry out right alignment adjustment.Secondly, regulate radial force loading unit 4 thus to guarantee that loading bar 20 contacts with the hemispherical groove on coupling shaft loading unit 5 also coaxial, the briquetting semicircle loading end 32 that steering unit axial force loads on briquetting 23 matches with the anterior cover plate of coupling shaft unit 5 axis be loaded to regulate steering unit 9 to guarantee, ensure that loading force axially transmits and is loaded on electro spindle.Before on-test, first input in host computer man-machine interface according to the size and Orientation of sound state cutting force, carry out communication by EtherCAT agreement and ACS controller, ACS controller is responsible for sending signal by EtherCAT agreement to servo-driver and frequency converter thus driving radial force loading unit 4, axial force loading unit 10 and dynamometer machine 7 to load.Wherein, grating scale blade 17 in radial force loading unit 4, axial force loading unit 10, grating scale reader 18 and disc type force snesor 21 detect that signal feeds back to ACS controller by signal amplifier and shows at upper industrial computer, carry out closed-loop control, monitor in real time simultaneously, S type pull pressure sensor 40 in dynamometer machine 7 detects that signal feeds back to ACS controller by signal amplifier and shows at upper industrial computer, carry out closed-loop control, monitor in real time simultaneously.
When electro spindle reliability test by the online simulation sound state cutting force of voice coil motor and dynamometer machine mix-loaded of the present invention carries out fail-test, the cutting operating mode simulated as required, sets cutting force charger before starting.Man-machine interface sets loading force, vibration frequency, Loaded contact analysis, load time, load the parameters such as moment of torsion and rotating speed, after on-test, the loading bar 20 that upper industrial computer controls radial force loading unit 4 and axial force loading unit 10 front portion proceeds to assigned address, contact with the groove that will coordinate respectively, by signal closed-loop control output loads that disc type force snesor 21 transmits after upper industrial computer receives contact force feedback signal, the signal that dynamometer machine 7 is fed back by S type pull pressure sensor 40 simultaneously carries out closed loop output loads, can on-line tuning load data in process of the test.After loading procedure terminates, loading bar 20 is retracted, and progressively reduction of speed is until stop simultaneously for electro spindle 3 and dynamometer machine 7, and this step-by-step test terminates.
In specific implementation process, the device in embodiment can carry out accepting or rejecting or modification as required:
In addition, embodiment described in the present invention can understand and apply the invention for the ease of these those skilled in the art, it is a kind of embodiment of optimization, a kind of preferably concrete technical scheme in other words conj.or perhaps, mainly there are provided the scheme of sound state cutting force under a kind of online real time modelling electro spindle actual condition, fail-test for different electro spindle can adopt substantially constant technical scheme, but the quantity of parts used or form will change thereupon, as changed parallels etc. for different model electro spindle, therefore the invention is not restricted to the description of this kind of more specific technical scheme in embodiment.

Claims (6)

1. an electro spindle reliability test for online simulation sound state cutting force, is characterized in that, this device comprises tested electric chief axis system part, moment of torsion loading section, simulation loading part, knuckle section (9) and control section; Wherein said tested electric chief axis system part and the coaxial connection of moment of torsion loading section; Described simulation loading part is mutually vertical with the axial line of moment of torsion loading section with electric chief axis system part; Radial force loading unit (4) in described simulation loading part and axial force loading unit (10) axis parallel; The loading bar (20) of described radial force loading unit (4) end contacts with the hemispherical groove of the housing side of the coupling shaft loading unit (5) in moment of torsion loading section; The anterior cover plate turning to the briquetting semicircle loading end (32) of swing arm (25) front end axial with coupling shaft loading unit (5) in described knuckle section (9) contacts; The described groove of the other end of swing arm (25) that turns to contacts with the loading bar (20) of axial force loading unit (10) end in simulation loading part; Described control section is connected with axial force loading unit (10) with the dynamometer machine (7) in moment of torsion loading section, radial force loading unit (4).
2. the electro spindle reliability test of a kind of online simulation sound state cutting force according to claim 1, it is characterized in that, described tested electric chief axis system part comprises base back-up block (1), main shaft pedestal (2) and electro spindle (3); Described electro spindle (3) is arranged on by the flange of electro spindle (3) front end to be embraced in clamp mechanism (41), embraces clamp mechanism (41) and is fixed on main shaft pedestal (2); Described main shaft pedestal (2) is arranged on the top of base back-up block (1); Base back-up block (1) is arranged on the top on ground black iron (11); The two ends of described main shaft pedestal (2) are fixedly connected with ground black iron (11) by bolt.
3. the electro spindle reliability test of a kind of online simulation sound state cutting force according to claim 2, it is characterized in that, described simulation loading part also comprises moment of torsion loading unit; Wherein said radial force loading unit (4) is identical with axial force loading unit (10) structure to be arranged in parallel, and is voice coil motor; Described radial force loading unit (4) comprises radial force loading unit pedestal (12), voice coil motor base (13), voice coil motor stiff end (14), voice coil motor movable end (15), oriented module (16), grating scale blade (17), grating scale reading machine (18), read head web member (19), loading bar (20) and disc type force snesor (21); Described radial force loading unit pedestal (12) is fixed on ground black iron (11); There is guide rail (35) described voice coil motor base (13) top and is fixed on radial force loading unit pedestal (12); Described voice coil motor stiff end (14) is fixedly connected with the baffle part of voice coil motor base (13); Described voice coil motor movable end (15) and voice coil motor stiff end (14) are flexibly connected; The top that described oriented module (16) is arranged on voice coil motor base (13) is fixedly connected with voice coil motor movable end (15) with its left end, its upper end is fixedly connected with slide block (36), and slide block (36) and guide rail (35) are slidably matched; Described grating scale blade (17) is fixedly connected with oriented module (16); Described grating scale reading machine (18) is fixedly connected with read head web member (19); Described read head web member (19) is fixed on voice coil motor base (13); Described grating scale blade (17) and grating scale reading machine (18) are slidably matched; Described disc type force snesor (21) is fixedly connected with oriented module 16, and disc type force snesor (21) and loading bar (20) are threaded, and wherein the front end of loading bar (20) is dome-type.
4. the electro spindle reliability test of a kind of online simulation sound state cutting force according to claim 3, it is characterized in that, described moment of torsion loading section also comprises dynamometer machine pedestal (8), S type pull pressure sensor (40), high-speed membrane coupler (6) and coupling shaft loading unit (5); Described dynamometer machine (7) is fixed on dynamometer machine pedestal (8); The shell that described S type pull pressure sensor (40) is fixed on dynamometer machine (7) is fixed on dynamometer machine pedestal (8); Described dynamometer machine pedestal (8) is fixed on ground black iron (11); Described coupling shaft loading unit (5) one end is connected with high-speed membrane coupler (6), and the other end is connected with electro spindle (3); Described coupling shaft loading unit (5) inside is bearing, bearing inner race coordinates on coupling shaft again, bearing outer ring is engaged on loading unit housing, all there is end cap seal at bearing two ends, have lubrication port above the housing of coupling shaft loading unit (5), side has the hemispherical groove matched with loading bar (20); Described coupling shaft loading unit (5), with radial force loading unit (4) and axial force loading unit (10) three with height; Described electro spindle (3), coupling shaft loading unit (5) and dynamometer machine (7) three are coaxial.
5. the electro spindle reliability test of a kind of online simulation sound state cutting force according to claim 4, it is characterized in that, described knuckle section (9) also comprises steering unit pedestal (22), steering unit axial force loading briquetting (23), end cap (27), the taper roll bearing (28) being with stop collar, thrust ball bearing (29), adjusting nut (30) and arm shaft (31); Wherein said turns to swing arm (25) for " L " type, and its bending part is provided with endoporus, and this endoporus matches with the band taper roll bearing (28) of stop collar and the outer shroud of thrust ball bearing (29); The taper roll bearing (28) of described band stop collar, the inner ring of thrust ball bearing (29) and arm shaft (31) are enclosed within the top of arm shaft (31), the end cap of its upper end is fixed by end cap and steering axle set bolt (26), and end cap and steering axle set bolt (26) are threaded with the threaded hole in arm shaft (31); Match with the cylindrical hole of steering unit pedestal (22) upper surface in the lower end of arm shaft (31); Described steering unit pedestal (22) is fixed on ground black iron (11); Described steering unit axial force is loaded briquetting (23) and is arranged on one end of turning to swing arm (25) and is fixed by briquetting and pivoted arm coupling bolt (24); The front end that described steering unit axial force loads briquetting (23) is briquetting semicircle loading end (32), and briquetting semicircle loading end (32) contacts with the anterior cover plate of coupling shaft loading unit (5) axis; The described other end of swing arm (25) that turns to turns to swing arm to load groove (33), and this groove contacts with the loading bar of axial force loading unit (10) end.
6. the electro spindle reliability test of a kind of online simulation sound state cutting force according to claim 1, it is characterized in that, described control section forms by by the servo-driver of industrial computer, ACS controller, radial force loading unit, the servo-driver of axial force loading unit and frequency converter; Described ACS controller is up to be connected by EtherCAT agreement general hypervelocity Ethernet fieldbus with industrial computer; Described ACS controller down direction is electrically connected with the frequency converter of the servo-driver of radial force loading unit, the servo-driver of axial force loading unit and dynamometer machine (7) respectively; Described radial force loading unit (4) is electrically connected with the servo-driver of radial force loading unit, and described axial force loading unit (10) is electrically connected with the servo-driver of axial force loading unit; Disc type force snesor (21) in described radial force loading unit (4), axial force loading unit (10) and the S type pull pressure sensor (40) in moment of torsion loading section are electrically connected with ACS controller, form complete closed-loop control, described industrial computer is electrically connected with man-machine interface.
CN201510827288.4A 2015-11-25 2015-11-25 The electro spindle reliability test of online simulation sound state cutting force Active CN105334057B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510827288.4A CN105334057B (en) 2015-11-25 2015-11-25 The electro spindle reliability test of online simulation sound state cutting force

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510827288.4A CN105334057B (en) 2015-11-25 2015-11-25 The electro spindle reliability test of online simulation sound state cutting force

Publications (2)

Publication Number Publication Date
CN105334057A true CN105334057A (en) 2016-02-17
CN105334057B CN105334057B (en) 2018-02-09

Family

ID=55284709

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510827288.4A Active CN105334057B (en) 2015-11-25 2015-11-25 The electro spindle reliability test of online simulation sound state cutting force

Country Status (1)

Country Link
CN (1) CN105334057B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108414213A (en) * 2018-05-31 2018-08-17 东北大学 A kind of kinetic servo knife rest reliability test bench
CN108693774A (en) * 2018-04-24 2018-10-23 浙江大学昆山创新中心 A kind of electro spindle comprehensive performance prediction technique
CN110296831A (en) * 2019-07-01 2019-10-01 清华大学 Electro spindle Pneumatic loading and condition monitoring system
CN111307434A (en) * 2020-03-07 2020-06-19 倪俊极 Batch detection testing machine and detection method for servo motor after production and assembly
CN111999062A (en) * 2020-09-24 2020-11-27 中国民用航空飞行学院 Load spectrum loaded joint bearing damage assessment test device
CN113155451A (en) * 2021-04-29 2021-07-23 吉林大学 Portable numerical control lathe main shaft test device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000105170A (en) * 1998-09-30 2000-04-11 Mori Seiki Co Ltd Apparatus for endurance test to main shaft unit
CN102426097A (en) * 2011-08-09 2012-04-25 吉林大学 Dynamic loading device for high-speed motorized spindle
CN102778345A (en) * 2012-02-10 2012-11-14 青海华鼎实业股份有限公司 Test device for simulating loading of main shaft of working condition
CN202869792U (en) * 2012-09-28 2013-04-10 吉林大学 Electro-hydraulic servo and dynamometer mixed loading-based testing stand for reliability of machine tool main shaft
CN104006957A (en) * 2014-06-17 2014-08-27 吉林大学 Contact-type reliability test bed capable of conducting mixed loading on electric main shaft
CN105067234A (en) * 2015-07-17 2015-11-18 安阳工学院 High speed electric main shaft comprehensive experiment platform and experiment method
CN205300929U (en) * 2015-11-25 2016-06-08 吉林大学 Simulate electric main shaft reliability test device of sound attitude cutting force on line

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000105170A (en) * 1998-09-30 2000-04-11 Mori Seiki Co Ltd Apparatus for endurance test to main shaft unit
CN102426097A (en) * 2011-08-09 2012-04-25 吉林大学 Dynamic loading device for high-speed motorized spindle
CN102778345A (en) * 2012-02-10 2012-11-14 青海华鼎实业股份有限公司 Test device for simulating loading of main shaft of working condition
CN202869792U (en) * 2012-09-28 2013-04-10 吉林大学 Electro-hydraulic servo and dynamometer mixed loading-based testing stand for reliability of machine tool main shaft
CN104006957A (en) * 2014-06-17 2014-08-27 吉林大学 Contact-type reliability test bed capable of conducting mixed loading on electric main shaft
CN105067234A (en) * 2015-07-17 2015-11-18 安阳工学院 High speed electric main shaft comprehensive experiment platform and experiment method
CN205300929U (en) * 2015-11-25 2016-06-08 吉林大学 Simulate electric main shaft reliability test device of sound attitude cutting force on line

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王凯: "高速电主轴电液伺服加载的可靠性试验台研制", 《中国优秀硕士学位论文全文数据库工程科技I辑》 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108693774A (en) * 2018-04-24 2018-10-23 浙江大学昆山创新中心 A kind of electro spindle comprehensive performance prediction technique
CN108693774B (en) * 2018-04-24 2021-03-05 浙江大学昆山创新中心 Method for predicting comprehensive performance of electric spindle
CN108414213A (en) * 2018-05-31 2018-08-17 东北大学 A kind of kinetic servo knife rest reliability test bench
CN108414213B (en) * 2018-05-31 2019-08-20 东北大学 A kind of kinetic servo knife rest reliability test bench
CN110296831A (en) * 2019-07-01 2019-10-01 清华大学 Electro spindle Pneumatic loading and condition monitoring system
CN111307434A (en) * 2020-03-07 2020-06-19 倪俊极 Batch detection testing machine and detection method for servo motor after production and assembly
CN111307434B (en) * 2020-03-07 2021-10-12 芜湖清川电气有限公司 Batch detection testing machine and detection method for servo motor after production and assembly
CN111999062A (en) * 2020-09-24 2020-11-27 中国民用航空飞行学院 Load spectrum loaded joint bearing damage assessment test device
CN113155451A (en) * 2021-04-29 2021-07-23 吉林大学 Portable numerical control lathe main shaft test device

Also Published As

Publication number Publication date
CN105334057B (en) 2018-02-09

Similar Documents

Publication Publication Date Title
CN105334057A (en) Reliability test device capable of online simulating dynamic and static cutting forces of motorized spindle
CN205300929U (en) Simulate electric main shaft reliability test device of sound attitude cutting force on line
CN102866030B (en) Five-axis linkage loading test device and loading test method for machine tool
CN203894596U (en) Multi-parameter online active monitoring system for machining states of numerical control machine bed
CN103308338B (en) Machine tool loading device and machine tool loading test method based on three-freedom-degree parallel mechanism
CN102944419B (en) There is the ball screw assembly, reliability test bench of electro-hydraulic servo loading device
CN103823409A (en) Numerical machine tool machining state multi-parameter online active monitoring system and implement method thereof
CN105353726A (en) Special-purpose controller of electronic press, and control method
CN102033201A (en) Simulation device and method using AC servo motor as variable-torque load
CN109333361B (en) Precision grinding control system for end face of cylindrical grinding machine
CN103235605B (en) A kind of numerical control rotating platform testing table load Loading Control System of simulated condition and control method
CN104596759A (en) Electric spindle reliability test bed with hydraulic-type energy recovery function
CN207066741U (en) A kind of loading experimental apparatus for simulating Tool in Cutting power
CN204422189U (en) There is the electro spindle reliability test bench of fluid pressure type energy regenerating
CN104502097A (en) Ball screw pair electric coupling servo loading device
CN106873524A (en) A kind of Digit Control Machine Tool closed-loop control system based on PC
CN106840644A (en) Electromagnetism and electric pushrod mix-loaded knife rest reliability test bench
CN104458303B (en) Heavy numerical control vertical lathe reliability test system
CN106092529A (en) The grinding wheel spindle reliability test bench being loaded by piezoelectric ceramics and magnetic powder brake
CN203448959U (en) Numerical control servo automatic precision pressing fit machine
CN204976194U (en) Little vibration monitoring devices of digit control machine tool
CN204286828U (en) Heavy CNC vertical turning machine reliability test system
CN202498409U (en) Dynamic characteristic detection device for feeding system of PCB drilling machine
CN203337103U (en) Laser measurement system for overall dimension of forge piece
CN111215965A (en) Device and method for measuring dynamic torque of alternating current permanent magnet synchronous motor of machine tool feeding system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20220823

Address after: 618 Liangjiang Avenue, Longxing Town, Yubei District, Chongqing

Patentee after: Chongqing Research Institute of Jilin University

Address before: 130012 No. 2699 Qianjin Street, Jilin, Changchun

Patentee before: Jilin University