CN105403388A - Test method and device of electric spindle - Google Patents

Test method and device of electric spindle Download PDF

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Publication number
CN105403388A
CN105403388A CN201510788659.2A CN201510788659A CN105403388A CN 105403388 A CN105403388 A CN 105403388A CN 201510788659 A CN201510788659 A CN 201510788659A CN 105403388 A CN105403388 A CN 105403388A
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CN
China
Prior art keywords
rotating speed
target
electro spindle
main shaft
current
Prior art date
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Pending
Application number
CN201510788659.2A
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Chinese (zh)
Inventor
于安庆
李俊杰
王艳杰
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Filing date
Publication date
Application filed by Weichai Power Co Ltd filed Critical Weichai Power Co Ltd
Priority to CN201510788659.2A priority Critical patent/CN105403388A/en
Publication of CN105403388A publication Critical patent/CN105403388A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts

Abstract

An embodiment of the invention discloses a test method and device of an electric spindle, and realizes the test of presenting states of the electric spindle at different rotating speeds, wherein the method includes the steps of: obtaining the current rotating speed of the electric spindle when the electric spindle is operated; judging whether the electric spindle satisfies a preset condition, if the electric spindle satisfies the preset condition, determining the target rotating speed according to the current rotating speed and preset adjusting parameters of the spindle, and enabling the spindle to rotate at the target rotating speed, and completing the test of the electric spindle.

Description

A kind of method of testing of electro spindle and device
Technical field
The present invention relates to numerically-controlled machine field, particularly relate to a kind of method of testing and device of electro spindle.
Background technology
This part embodiments of the present invention be intended to for stating in claims provide background or context.Description is not herein because be included in just admit it is prior art in this part.
Electro spindle (ElectricSpindle), also known as " Fast frequency spindle " (HighFrequencySpindle) or " direct-drive main shaft " (DirectDriveSpindle), being built-in electric motor main axle unit, is new technology machine tool chief axis and spindle motor combined together occurred in numerically-controlled machine field.Electro spindle is made up of frameless motor, main shaft, bearing, main axle unit housing, driver module and cooling device etc.Because electro spindle is zero the contraction in length of Machine Tool Main Drive chain, achieve " Zero-drive Chain " of lathe, have compact conformation, mechanical efficiency high, high speed of gyration can be obtained, rotating accuracy is high, noise is low, vibrate the advantages such as little, thus obtain in Modern NC Machine Tool and apply more and more widely.
Due to the vitals that electro spindle is Numerically controlled machine, the method whether prior art urgently needs test electro spindle all to go on well under different rotating speeds.
Summary of the invention
The invention provides a kind of method of testing and device of electro spindle, achieve the test of described electro spindle in present condition under different rotating speeds.
The invention provides a kind of method of testing of electro spindle, described method comprises:
When after the running of startup electro spindle, obtain the current rotating speed of the main shaft of electro spindle;
Judge whether electro spindle meets pre-conditioned, if so, then according to current rotating speed and the default regulating parameter determination rotating speed of target of described main shaft, rotate with described rotating speed of target to make main shaft, realize test to described electro spindle, wherein, described rotating speed of target and described current rotating speed unequal.
Preferably, describedly pre-conditionedly to comprise: described main shaft runs preset time period continuously.
Preferably, describedly to comprise according to current rotating speed and default regulating parameter determination rotating speed of target:
According to current rotating speed and default regulating parameter sum or difference determination rotating speed of target.
Preferably, after according to current rotating speed and default regulating parameter determination rotating speed of target, described method also comprises:
If described rotating speed of target is larger than described current rotating speed, then judge whether described rotating speed of target is more than or equal to default maximum (top) speed, if not, then perform and judge whether electro spindle meets pre-conditioned step.
Preferably, described method also comprises: judge that whether the temperature of electro spindle is greater than or equal to preset value, if so, then stops electro spindle rotating.
Present invention also offers a kind of proving installation of electro spindle, described device comprises: rotating speed acquiring unit, pre-conditioned judging unit and rotating speed of target determining unit, wherein, described rotating speed acquiring unit is connected with described pre-conditioned judging unit, described pre-conditioned judging unit is connected with described rotating speed of target determining unit, described rotating speed of target determining unit and described rotating speed acquiring unit;
Described rotating speed acquiring unit, for when after the running of startup electro spindle, obtains the current rotating speed of the main shaft of electro spindle;
Described pre-conditioned judging unit, pre-conditioned for judging whether described electro spindle meets, if so, then activate described rotating speed of target determining unit;
Described rotating speed of target determining unit, for according to the current rotating speed of described main shaft and default regulating parameter determination rotating speed of target, to make main shaft rotate with described rotating speed of target, realize the test to described electro spindle, wherein, described rotating speed of target and described current rotating speed unequal.
Preferably, describedly pre-conditionedly to comprise: described main shaft runs preset time period continuously.
Preferably, described rotating speed of target determining unit, specifically for:
According to current rotating speed and default regulating parameter sum or difference determination rotating speed of target, to make described main shaft rotate with described rotating speed of target, realize the test to described electro spindle, wherein, described rotating speed of target and described current rotating speed unequal.
Preferably, described device also comprises: maximum (top) speed judging unit, be connected with described rotating speed of target determining unit, if larger than described current rotating speed for described rotating speed of target, then judge whether described rotating speed of target is more than or equal to default maximum (top) speed, if not, then described pre-conditioned judging unit is activated.
Preferably, described device also comprises: temperature judging unit, for judging that whether the temperature of electro spindle is greater than or equal to preset value, if so, then stops electro spindle rotating.
In the present invention, when after the running of startup electro spindle, the current rotating speed of the main shaft of electro spindle is obtained, judge whether electro spindle meets pre-conditioned, if so, then according to current rotating speed and the default regulating parameter determination rotating speed of target of main shaft, rotate with described rotating speed of target to make main shaft.Due to current rotating speed and rotating speed of target unequal, therefore achieve to described electro spindle under different rotating speeds in the test of present condition.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of electro spindle;
Fig. 2 is the schematic diagram of electro spindle testing table;
Fig. 3 is the process flow diagram of the method for testing embodiment of a kind of electro spindle provided by the invention;
Fig. 4 is the structured flowchart of the proving installation embodiment of a kind of electro spindle provided by the invention.
Embodiment
See Fig. 1, this figure is the structural representation of electro spindle, and in the figure, electro spindle comprises the compositions such as motor, main shaft, bearing, main axle unit housing, cooling device.The rotor of motor adopts press fit method and main shaft to be made of one, and the rotor of motor adopts press fit method and main shaft to be made of one, and main shaft is then supported by front and back bearings.The stator of motor is installed in the housing of main axle unit by cooling jacket.The speed change of main shaft is controlled by main shaft drives module, and the temperature rise in main axle unit is limited by cooling device.Be equipped with in the rear end of main shaft test the speed, angle measurement displacement transducer, the internal taper hole of front end and end face are used for mounting cutter.Electro spindle power wheel is connected with the Knife handle structure in electro spindle, rotates by driving Knife handle structure the rotation ordering about main shaft in electro spindle.
In order to test the working order of electro spindle, can electro spindle be inserted in numerically-controlled machine in actual applications, utilizing the control system of numerically-controlled machine to run under different rotating speeds to make electro spindle.Another preferably mode be utilize electro spindle testing table to measure the working order of electro spindle under different rotating speeds.See Fig. 2, described self-built electro spindle testing table mainly comprises: frequency converter, motor (threephase asynchronous of such as two-stage), electric-motor drive wheel, driving-belt, electro spindle power wheel, electro spindle, controller, lubricating system etc.After described motor powers on, order about electric-motor drive wheel to rotate, electric-motor drive wheel drives electro spindle power wheel to rotate by driving-belt, and electro spindle power wheel is connected with the Knife handle structure in electro spindle, rotates by driving Knife handle structure the rotation ordering about main shaft in electro spindle.Controller changes the frequency of frequency converter by control survey, and frequency converter is connected with motor, thus realizes the variation to motor speed.
Whether all go on well under different rotating speeds to test electro spindle, the invention provides a kind of method of testing of electro spindle, the method, also can be applied to the control system of described electro spindle testing table if can be applied to the control system of numerically-controlled machine.The method of testing of described electro spindle comprises: when after the running of startup electro spindle, obtain the current rotating speed of the main shaft of electro spindle; Judge whether electro spindle meets pre-conditioned, if, then according to current rotating speed and the default regulating parameter determination rotating speed of target of main shaft, rotate with described rotating speed of target to make main shaft, realize the test to described electro spindle, due to current rotating speed and rotating speed of target unequal, therefore achieve to described electro spindle under different rotating speeds in the test of present condition.
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 3, this figure is the process flow diagram of the method for testing embodiment of a kind of electro spindle provided by the invention.
The method of testing of the electro spindle that the present embodiment provides comprises the steps:
Step S101: initial speed is set, presets regulating parameter and pre-conditioned.
Step S102: start electro spindle, the main shaft of electro spindle is operated with described initial speed.
Step S103: the current rotating speed obtaining described main shaft.
After just starting to start electro spindle, described current rotating speed is described initial speed; And after one takes turns the speed change to electro spindle, the current rotating speed of epicycle is the last round of rotating speed of target calculated.
Step S104: judge whether electro spindle meets pre-conditioned, if so, then performs step S105.
In actual applications, the described pre-conditioned electro spindle that can be set to runs preset time period continuously, or electro spindle rotates default revolution etc. continuously, and the present invention is not specifically limited, and those skilled in the art can according to actual conditions sets itself.
Step S105: according to current rotating speed and the default regulating parameter determination rotating speed of target of main shaft, rotate with described rotating speed of target to make main shaft.
In the present embodiment, according to current rotating speed and the default regulating parameter determination rotating speed of target of main shaft.Concrete, initial speed can be set as a smaller value, during each calculating rotating speed of target, all current rotating speed be added default regulating parameter, obtain rotating speed of target, make the rotating speed of main shaft be a process at the uniform velocity increased from low to high.Such as, if current rotating speed is 500 revs/min, default regulating parameter is 100 revs/min, then rotating speed of target is 500+100=600 rev/min.
Or, initial speed can be set as a higher value, during each calculating rotating speed of target, all current rotating speed be deducted default regulating parameter, obtain rotating speed of target, make the rotating speed of main shaft be a process at the uniform velocity reduced from high to low.Such as, if current rotating speed is 5000 revs/min, default regulating parameter is 100 revs/min, then rotating speed of target is 5000-100=4900 rev/min.
Or, just can be set as a smaller value by initial speed, during each calculating rotating speed of target, all current rotating speed is multiplied by default regulating parameter, obtain rotating speed of target, make the rotating speed of electro spindle be a process increased fast from low to high.Such as, if current rotating speed is 1000 revs/min, default regulating parameter is 2, and so described rotating speed of target is 1000 × 2=2000 rev/min.
Or, just can be set as a higher value by initial speed, each when calculating rotating speed of target, all by current rotating speed divided by default regulating parameter, obtain rotating speed of target, make the rotating speed of main shaft be a process reduced fast from high to low.Such as, if current rotating speed is 6000 revs/min, default regulating parameter is 2, and so described rotating speed of target is 6000 ÷ 2=3000 rev/min.
Certainly, the computing method of above-mentioned four kinds of rotating speed of target do not form limitation of the invention, and those skilled in the art can also designed, designed according to specific needs.
At the main shaft of electro spindle with in the process of multiple rotational speed, professional can assess according to the state of electro spindle performance, if electro spindle functioning condition is good, then continues test, or stops test; If electro spindle functioning condition under certain or some rotating speeds goes wrong, then can according to make concrete analyses of concrete problems.
Step S106: if described rotating speed of target is larger than described current rotating speed, then judge whether described rotating speed of target is more than or equal to default maximum (top) speed, if not, then performs step S103; If so, then step S107 is performed.
Step S107: stop electro spindle running.
In the present embodiment, when the rotating speed of target calculated is larger than current rotating speed, can judge whether described rotating speed of target is more than or equal to default maximum (top) speed, if so, then stop test; If not, then execution judges whether electro spindle meets pre-conditioned step, to carry out the speed change of next round to electro spindle.
In the present embodiment, by electro spindle repeatedly speed change, the object in present condition of test electro spindle under multiple speed is achieved.
In addition, when the spindle operation rotating speed of electro spindle is higher, can produce a large amount of heats, cause electro spindle to heat up, the thermal characteristic of electro spindle and dynamic perfromance are deteriorated, thus affect the normal work of electro spindle.In order to not make electro spindle overheated, in actual applications, can in the process to electro spindle speed change, utilize the data that the temperature sensor being arranged on electro spindle transmits, judge that whether the temperature of electro spindle is greater than or equal to preset value, if so, then control electro spindle and rotate immediately.
In actual applications, if electro spindle occurs that temperature sharply rises suddenly under certain rotating speed, or the abnormality such as vibration amplitude is larger, then stop the running of electro spindle immediately, check the bearing state of electro spindle inside, web member tightening state, the state of lubricating oil and the dynamic equilibrium state etc. of rotor.
Based on the method for testing of a kind of electro spindle that above embodiment provides, the embodiment of the present invention additionally provides a kind of proving installation of electro spindle, describes its principle of work in detail below in conjunction with accompanying drawing.
See Fig. 4, this figure is the structured flowchart of the proving installation embodiment of a kind of electro spindle provided by the invention.
The proving installation of the electro spindle that the present embodiment provides comprises: rotating speed acquiring unit 101, pre-conditioned judging unit 102 and rotating speed of target determining unit 103, wherein, described rotating speed acquiring unit 101 is connected with described pre-conditioned judging unit 102, described pre-conditioned judging unit 102 is connected with described rotating speed of target determining unit 103, and described rotating speed of target determining unit 103 is connected with described rotating speed acquiring unit 101.
Described rotating speed acquiring unit 101, for when after the running of startup electro spindle, obtains the current rotating speed of the main shaft of electro spindle.
After just starting to start electro spindle, described current rotating speed is described initial speed; And after one takes turns the speed change to the main shaft of electro spindle, the current rotating speed of epicycle is the last round of rotating speed of target calculated.Or, when the actual speed of forward spindle to be the current rotating speed of described main shaft.
Described pre-conditioned judging unit 102, pre-conditioned for judging whether described electro spindle meets, if so, then activate described rotating speed of target determining unit.
Described pre-conditionedly can have multiple, and specifically see the method for testing embodiment of electro spindle, the present invention is not specifically limited.
Described rotating speed of target determining unit 103, for according to the current rotating speed of main shaft and default regulating parameter determination rotating speed of target, to make main shaft rotate with described rotating speed of target, realizes the test to described electro spindle.
The present invention to how is not specifically limited according to the current rotating speed of main shaft and default regulating parameter determination rotating speed of target, and those skilled in the art can designed, designed.
Due to current rotating speed and rotating speed of target unequal, therefore achieve the test in present condition under different rotating speeds of the main shaft of described electro spindle.
In another preferred mode, described device also comprises: maximum (top) speed judging unit, be connected with described rotating speed of target determining unit, if larger than described current rotating speed for described rotating speed of target, then judge whether described rotating speed of target is more than or equal to default maximum (top) speed, if not, then described pre-conditioned judging unit is activated.
In the present embodiment, when the rotating speed of target calculated is larger than current rotating speed, can judge whether described rotating speed of target is more than or equal to default maximum (top) speed, if so, then stop test; If not, then activate described pre-conditioned judging unit, to carry out the speed change of next round to electro spindle.
In addition, when electro spindle running rotating speed is higher, a large amount of heats can be produced, electro spindle is caused to heat up, in order to not make electro spindle overheated, in actual applications, described device also comprises: temperature judging unit, for judging that whether the temperature of electro spindle is greater than or equal to preset value, electro spindle is if so, then stopped to rotate.
When introducing elements of various embodiments of the present invention, article " ", " one ", " this " and " described " are all intended to indicate one or more element.Word " comprises ", " comprising " and " having " be all comprising property and mean except the element listed to have other element.
It should be noted that, one of ordinary skill in the art will appreciate that all or part of flow process realized in said method embodiment, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process as above-mentioned each side method embodiment.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for device embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.Device embodiment described above is only schematic, and the wherein said unit that illustrates as separating component and module can or may not be physically separates.In addition, some or all of unit wherein and module can also be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
The above is only the specific embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (10)

1. a method of testing for electro spindle, is characterized in that, described method comprises:
When after the running of startup electro spindle, obtain the current rotating speed of the main shaft of electro spindle;
Judge whether electro spindle meets pre-conditioned, if so, then according to current rotating speed and the default regulating parameter determination rotating speed of target of described main shaft, rotate with described rotating speed of target to make main shaft, realize test to described electro spindle, wherein, described rotating speed of target and described current rotating speed unequal.
2. method of testing according to claim 1, is characterized in that, describedly pre-conditionedly to comprise: described main shaft runs preset time period continuously.
3. method of testing according to claim 1, is characterized in that, describedly comprises according to current rotating speed and default regulating parameter determination rotating speed of target:
According to current rotating speed and default regulating parameter sum or difference determination rotating speed of target.
4. method of testing according to claim 1, is characterized in that, after according to current rotating speed and default regulating parameter determination rotating speed of target, described method also comprises:
If described rotating speed of target is larger than described current rotating speed, then judge whether described rotating speed of target is more than or equal to default maximum (top) speed, if not, then perform and judge whether electro spindle meets pre-conditioned step.
5. the method for testing according to Claims 1-4 any one, is characterized in that, described method also comprises: judge that whether the temperature of electro spindle is greater than or equal to preset value, if so, then stops electro spindle rotating.
6. the proving installation of an electro spindle, it is characterized in that, described device comprises: rotating speed acquiring unit, pre-conditioned judging unit and rotating speed of target determining unit, wherein, described rotating speed acquiring unit is connected with described pre-conditioned judging unit, described pre-conditioned judging unit is connected with described rotating speed of target determining unit, described rotating speed of target determining unit and described rotating speed acquiring unit;
Described rotating speed acquiring unit, for when after the running of startup electro spindle, obtains the current rotating speed of the main shaft of electro spindle;
Described pre-conditioned judging unit, pre-conditioned for judging whether described electro spindle meets, if so, then activate described rotating speed of target determining unit;
Described rotating speed of target determining unit, for according to the current rotating speed of described main shaft and default regulating parameter determination rotating speed of target, to make main shaft rotate with described rotating speed of target, realize the test to described electro spindle, wherein, described rotating speed of target and described current rotating speed unequal.
7. device according to claim 6, is characterized in that, describedly pre-conditionedly to comprise: described main shaft runs preset time period continuously.
8. device according to claim 6, is characterized in that, described rotating speed of target determining unit, specifically for:
According to current rotating speed and default regulating parameter sum or difference determination rotating speed of target, to make described main shaft rotate with described rotating speed of target, realize the test to described electro spindle, wherein, described rotating speed of target and described current rotating speed unequal.
9. device according to claim 6, it is characterized in that, described device also comprises: maximum (top) speed judging unit, be connected with described rotating speed of target determining unit, if larger than described current rotating speed for described rotating speed of target, then judge whether described rotating speed of target is more than or equal to default maximum (top) speed, if not, then activate described pre-conditioned judging unit.
10. the device according to claim 6 to 9 any one, is characterized in that, described device also comprises: temperature judging unit, for judging that whether the temperature of electro spindle is greater than or equal to preset value, if so, then stops electro spindle rotating.
CN201510788659.2A 2015-11-16 2015-11-16 Test method and device of electric spindle Pending CN105403388A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110320866A (en) * 2019-07-24 2019-10-11 珠海格力智能装备有限公司 The control method and device of machine spindle speed

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101718658A (en) * 2009-11-17 2010-06-02 重庆大学 Device for testing dynamic stiffness and constant pressure of high-speed electric spindle
CN102095575A (en) * 2010-11-30 2011-06-15 沈阳建筑大学 Automatic electric spindle test system based on UMAC (Universal Motion and Automation Controller)
CN103267637A (en) * 2013-05-10 2013-08-28 西安交通大学 Self-balancing motorized spindle comprehensive performance test platform
CN103486071A (en) * 2013-09-25 2014-01-01 烽火通信科技股份有限公司 Intelligent fan speed regulating method and device based on equipment temperature feedback
CN103592112A (en) * 2013-10-27 2014-02-19 沈阳建筑大学 Electric main shaft loading testing system and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101718658A (en) * 2009-11-17 2010-06-02 重庆大学 Device for testing dynamic stiffness and constant pressure of high-speed electric spindle
CN102095575A (en) * 2010-11-30 2011-06-15 沈阳建筑大学 Automatic electric spindle test system based on UMAC (Universal Motion and Automation Controller)
CN103267637A (en) * 2013-05-10 2013-08-28 西安交通大学 Self-balancing motorized spindle comprehensive performance test platform
CN103486071A (en) * 2013-09-25 2014-01-01 烽火通信科技股份有限公司 Intelligent fan speed regulating method and device based on equipment temperature feedback
CN103592112A (en) * 2013-10-27 2014-02-19 沈阳建筑大学 Electric main shaft loading testing system and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王明威: ""HMC80加工中心电主轴单元实验平台设计与试验研究"", 《中国优秀硕士学位论文全文数据库》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110320866A (en) * 2019-07-24 2019-10-11 珠海格力智能装备有限公司 The control method and device of machine spindle speed

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