CN106885736A - A kind of spindle rotor dynamic stiffness Performance Test System - Google Patents
A kind of spindle rotor dynamic stiffness Performance Test System Download PDFInfo
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- CN106885736A CN106885736A CN201710178599.1A CN201710178599A CN106885736A CN 106885736 A CN106885736 A CN 106885736A CN 201710178599 A CN201710178599 A CN 201710178599A CN 106885736 A CN106885736 A CN 106885736A
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- main shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0252—Monoaxial, i.e. the forces being applied along a single axis of the specimen
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0266—Cylindrical specimens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
A kind of spindle rotor dynamic stiffness Performance Test System,Including main shaft damping clamp assay platform,Main shaft damping clamp assay platform lower section is connected with damping device,Main shaft damping clamp assay platform top is connected with packaged type main shaft clamping device,The spindle rotor interference fit of packaged type main shaft gripping apparatus grips is set with load transfer means,Electric vortex type displacement sensor is connected with load transfer means,Main shaft damping clamp assay platform is provided with loading cylinder by vertically arranged mode,Load the front end connection force sensor of cylinder,The output shaft top for loading cylinder is coordinated by the top and load transfer means that exert a force,Electric vortex type displacement sensor,The signal output part of force snesor passes through Signal-regulated kinase,Four-way data collecting card and middle control workbench are connected,The present invention realizes the test of main shaft radial direction dynamic stiffness,Main shaft dynamic load and dynamic deformation amount pickup problem can effectively be solved the problems, such as,Improve main shaft design level of processing.
Description
Technical field
The present invention relates to main shaft dynamic stiffness technical field of measurement and test, and in particular to a kind of spindle rotor dynamic stiffness performance test system
System.
Background technology
High-grade, digitally controlled machine tools are the basic equipments of high-precision digital manufacture, are the important fingers of the national manufacture level of reaction
Mark.High-speed high-precision main shaft is the core functional components of high-grade, digitally controlled machine tools, and the dynamic characteristic of main shaft will directly affect processing effect
Rate and machining accuracy.Main shaft dynamic characteristic has direct relation with spindle design and level of processing, therefore, want to improve main shaft
Dynamic characteristic must just improve main shaft design processing and manufacturing ability, and main shaft dynamic characteristic can be realized by main shaft means of testing
Detection, and the anti-processing and manufacturing level for pushing away design level of processing, effectively improving main shaft.Dynamic stiffness is that reaction main shaft dynamic is special
Property important parameter, it is carried out test it is significant.
Main shaft is consigned to after user, and the working ability of processing request and main shaft that user can combine work piece is added
The setting of work parameter, due to not having dynamic stiffness parameter, user cannot judge the ability of main shaft resistance cutting exciting force, set excessive
Processing capacity can cause spindle vibration it is excessive, generate heat it is serious the problems such as, the serious curtailment main shaft life-span；Too small processing capacity is set then
Processing efficiency can seriously be limited.As can be seen here, dynamic stiffness parameter is operated with great for the normal use electro spindle of client
Meaning, is the important parameter for having to consider and be supplied to client.
The existing ripe rigidity test equipment of main shaft industry is launched both for Static stiffness, and its principle is that main shaft is applied
Permanent load, the displacement of rotor-support-foundation system correspondence position is picked up by sensor or amesdial, then asks for power with deflection
Ratio represents Static stiffness.Due to being difficult to noiseless loading under main shaft current intelligence, so being caused to the test of main shaft dynamic stiffness
Difficulty, the mode of existing roller imposed load can cause abrasion to spindle rotor surface, and have rotating speed to lose, influence test essence
Degree；Although electromagnetism load mode realizes contactless loading, but due to complex structure, high volume applications have certain being stranded
It is difficult.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, object of the present invention is to provide a kind of spindle rotor dynamic stiffness
Energy test system, realizes the test of main shaft radial direction dynamic stiffness, can effectively solve the problems, such as main shaft dynamic load and dynamic deformation
Amount pickup problem, improves main shaft design level of processing.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of spindle rotor dynamic stiffness Performance Test System, including main shaft damping clamp assay platform 2, main shaft damping clamping examination
Test the lower section of platform 2 and be connected with damping device 1, the top of main shaft damping clamp assay platform 2 is connected with packaged type main shaft clamping device 3,
Load transfer means 9 are set with by interference fit on the spindle rotor 6 of the clamping of packaged type main shaft clamping device 3, load is passed
Electric vortex type displacement sensor is connected with delivery device 9, the signal output part of electric vortex type displacement sensor passes through the first signal
The first input end connection of conditioning module 5-1 and four-way data collecting card 10；
Main shaft damping clamp assay platform 2 is provided with loading cylinder 13 by vertically arranged mode, before loading cylinder 13
End connection force sensor 11, load cylinder 13 output shaft top by exert a force top 12 and load transfer means 9 coordinate, lead to
Cross to exert a force and top 12 apply force in load transfer means 9, the signal output part of force snesor 11 nurses one's health mould by secondary signal
The second input connection of block 5-2 and four-way data collecting card 10；
The input connection of the output end of four-way data collecting card 10 and middle control workbench 14, takes on middle control workbench 14
Be loaded with signal processing and analysis software, signal processing and analysis Integrated Simulation signal acquisition, signal reject algorithm, Fourier transformation with
And the program of Rigidity Calculation.
Described load transfer means 9 include cylinder roller bearing 9-2, and load is connected with the outside of cylinder roller bearing 9-2
Lotus transfer device inner ring 9-3, is provided with what trip bolt 9-4 linked into an integrated entity on the outside of load transfer means inner ring 9-3
Outer shroud 9-1, cylinder roller bearing 9-2 are more order of magnitude greater than the rigidity of main shaft support bearing angular contact ball bearing for load device.
A kind of method of testing of spindle rotor dynamic stiffness Performance Test System, comprises the following steps：
1) the distance between regulation packaged type main shaft clamping device 3 and loading cylinder 13, tested main shaft is arranged on can
On portable main shaft clamping device 3, load transfer means 9 are installed to the front end of spindle rotor 6 so that load transfer means 9
Load device outer shroud 9-1 faces force top 12, and load transfer means 9 should first test obtain its quality m before the mounting；
2) eddy current displacement sensor is arranged on the corresponding test position of load transfer means 9, finely tunes current vortex displacement
In sensor to range, Signal-regulated kinase, capture card 10 and middle control workbench 14 are connected；When starting test, middle control work
Platform 14 applies one and preloads F=mg to load transfer means 9 by controlled loading cylinder 13, it is ensured that the frictional force of generation is in footpath
The startup moment of friction of cylinder roller bearing 9-2 can be offset upwards, control to collect force signal F by middle control workbench 141
With the displacement signal S of eddy current displacement sensor position1T (), control is tested main shaft and is operated in the case where rotating speed is tested, continue to control to add
The imposed load of carrier gas cylinder 13 is to F2, synchronous acquisition displacement signal S2(t)；
3) displacement signal that control workbench 14 is collected in is time-domain signal, and signal processing and analysis software carries out FFT to it
Conversion obtains frequency domain amplitude S1(ω) and S2(ω), the then dynamic stiffness under the test rotating speedChange and survey
Preliminary operation speed obtains the dynamic stiffness curve being distributed with rotating speed.
Beneficial effects of the present invention are：Loading cylinder 13 gives the imposed load of load transfer means 9, is passed by current vortex displacement
Sensor, force snesor 11 and middle control workbench 14 realize the test of main shaft radial direction dynamic stiffness, and the present invention can effectively solve master
Axle dynamic load problem and dynamic deformation amount pickup problem, improve main shaft design level of processing.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is load transmission cellular construction schematic diagram of the invention.
Specific embodiment
Further details of elaboration is done to the present invention with reference to the accompanying drawings and examples.
Reference picture 1, a kind of spindle rotor dynamic stiffness Performance Test System, including main shaft damping clamp assay platform 2, main shaft subtracts
The lower section of shake clamp assay platform 2 is connected with damping device 1, and the top of main shaft damping clamp assay platform 2 is connected with packaged type main shaft folder
Device 3 is held, packaged type main shaft clamping device 3 is connected with the surface grooves of main shaft damping clamp assay platform 2 by bolt, can adjusted
Section different model main shaft and the position adjustments for testing loading section；On the spindle rotor 6 of the clamping of packaged type main shaft clamping device 3
Load transfer means 9 are set with by interference fit, and realize load transfer means 9 in master by regulating sleeve 8 and locking nut 7
Radial positioning on axle rotor 6, the both sides and surface of load transfer means 9 are connected with the first electric vortex type displacement by magnetic support
Sensor 4-1, the second electric vortex type displacement sensor 4-2 and the 3rd electric vortex type displacement sensor 4-3, the first electric vortex type
The signal of displacement transducer 4-1, the second electric vortex type displacement sensor 4-2 and the 3rd electric vortex type displacement sensor 4-3 is defeated
Go out end to be connected by the first input end of the first Signal-regulated kinase 5-1 and four-way data collecting card 10, using three electric whirlpools
Streaming displacement transducer can gather the item data of 9 left, center, right of load transfer means three, and most useful signal is taken by signal transacting
Calculated；
Loading cylinder 13 is provided with by vertically arranged mode at the mesopore of main shaft damping clamp assay platform 2, gas is loaded
The front end connection force sensor 11 of cylinder 13, loads the output shaft top of cylinder 13 by top 12 and the load transfer means of exerting a force
9 coordinate, and top 12 are applied force in load transfer means 9 by exerting a force, and the mode that loading cylinder 13 applies to preload offsets load
Lotus transfer device 9 gravity of itself so that test load is more accurate, the signal output part of force snesor 11 passes through secondary signal
The second input connection of conditioning module 5-2 and four-way data collecting card 10；
The input connection of the output end of four-way data collecting card 10 and middle control workbench 14, takes on middle control workbench 14
Be loaded with signal processing and analysis software, signal processing and analysis Integrated Simulation signal acquisition, signal reject algorithm, Fourier transformation with
And the program of Rigidity Calculation.
Reference picture 2, described load transfer means 9 include cylinder roller bearing 9-2, the outside of cylinder roller bearing 9-2
Load transfer means inner ring 9-3 is connected with, trip bolt 9-4 connections are provided with the outside of load transfer means inner ring 9-3
Integral load device outer shroud 9-1, cylinder roller bearing 9-2 is bigger than the rigidity of main shaft support bearing angular contact ball bearing one
The order of magnitude, this connection can adjust cylinder roller bearing 9-2 clearance, be easy to effective transmission of power.
A kind of method of testing of spindle rotor dynamic stiffness Performance Test System, comprises the following steps：
1) the distance between regulation packaged type main shaft clamping device 3 and loading cylinder 13, tested main shaft is arranged on can
On portable main shaft clamping device 3, load transfer means 9 are installed to the front end of spindle rotor 6 using plunging so that load is passed
The load device outer shroud 9-1 of delivery device 9 faces force top 12, then installs corresponding adjustment sleeve 8 and locking nut 7,
It should be noted that load transfer means 9 should be tested first before the mounting obtains its quality m, in case follow-up calculating uses；Carry
The lower surface of lotus device outer shroud 9-1 needs to do roughening treatment, offsets cylinder roller bearing 9-2's in order to increasing friction force
Pivoting friction torque, the upper surface of load device outer shroud 9-1 is done fine grinding treatment and improves surface smoothness, and requires that flatness reaches
To 2 μm, it is ensured that measuring accuracy；
2) three eddy current displacement sensors are arranged on the corresponding test position of load transfer means 9, fine setting with magnetic support
In eddy current displacement sensor to range, Signal-regulated kinase, capture card 10 and middle control workbench 14 are connected；Start test
When, middle control workbench 14 applies one and preloads F=mg to load transfer means 9 by controlled loading cylinder 13, it is ensured that produce
Frictional force can diametrically offset the startup moment of friction of cylinder roller bearing 9-2, control to adopt by middle control workbench 14
Collect force signal F1With three displacement signal S of eddy current displacement sensor position1T (), is existed using the tested main shaft of Frequency Converter Control
Operated under test rotating speed, continue the imposed load of controlled loading cylinder 13 to F2, synchronous acquisition displacement signal S2(t)；
3) displacement signal that control workbench 14 is collected in is time-domain signal, and signal processing and analysis software carries out FFT to it
Conversion obtains frequency domain amplitude S1(ω) and S2(ω), the then dynamic stiffness under the test rotating speedChange and survey
Preliminary operation speed obtains the dynamic stiffness curve being distributed with rotating speed.
Claims (3)
1. a kind of spindle rotor dynamic stiffness Performance Test System, including main shaft damping clamp assay platform (2), it is characterised in that：It is main
Axle damping clamp assay platform (2) lower section is connected with damping device (1), and main shaft damping clamp assay platform (2) top is connected with removable
Dynamic formula main shaft clamping device (3), the spindle rotor (6) of packaged type main shaft clamping device (3) clamping is set with by interference fit
There are load transfer means (9), load transfer means (9) place is connected with electric vortex type displacement sensor, electric vortex type displacement sensing
The signal output part of device is connected by the first input end of the first Signal-regulated kinase (5-1) and four-way data collecting card (10)
Connect；
Main shaft damping clamp assay platform (2) is provided with loading cylinder (13) by vertically arranged mode, loading cylinder (13)
Front end connects force sensor (11), and the output shaft top of loading cylinder (13) is by top (12) and the load transfer means of exerting a force
(9) coordinate, by exerting a force, top (12) are applied force in load transfer means (9), the signal output part of force snesor (11) leads to
Cross the second input connection of secondary signal conditioning module (5-2) and four-way data collecting card (10)；
The input connection of the output end of four-way data collecting card (10) and middle control workbench (14), on middle control workbench (14)
It is equipped with signal processing and analysis software, signal processing and analysis Integrated Simulation signal acquisition, signal reject algorithm, Fourier transformation
And the program of Rigidity Calculation.
2. a kind of spindle rotor dynamic stiffness Performance Test System according to claim 1, it is characterised in that：Described load
Transfer device (9) includes cylinder roller bearing (9-2), is connected with load transfer means on the outside of cylinder roller bearing (9-2)
Ring (9-3), is provided with the load dress that trip bolt (9-4) links into an integrated entity on the outside of load transfer means inner ring (9-3)
Outer shroud (9-1) is put, cylinder roller bearing (9-2) is more order of magnitude greater than the rigidity of main shaft support bearing angular contact ball bearing.
3. a kind of method of testing of spindle rotor dynamic stiffness Performance Test System, it is characterised in that comprise the following steps：
1) the distance between regulation packaged type main shaft clamping device (3) and loading cylinder (13), tested main shaft is arranged on can
On portable main shaft clamping device (3), load transfer means (9) are installed to spindle rotor (6) front end so that load transmission is filled
The load device outer shroud (9-1) for putting (9) faces force top (12), and load transfer means (9) should be surveyed first before the mounting
Examination obtains its quality m；
2) eddy current displacement sensor is arranged on the corresponding test position of load transfer means (9), fine setting current vortex displacement is passed
In sensor to range, Signal-regulated kinase, capture card (10) and middle control workbench (14) are connected；When starting test, middle control work
Make platform (14) and apply one by controlled loading cylinder (13) to preload F=mg and give load transfer means (9), it is ensured that generation rubs
Wiping power can diametrically offset the startup moment of friction of cylinder roller bearing (9-2), control to adopt by middle control workbench (14)
Collect force signal F1With the displacement signal S of eddy current displacement sensor position1T (), the tested main shaft of control is transported in the case where rotating speed is tested
Turn, continue controlled loading cylinder (13) imposed load to F2, synchronous acquisition displacement signal S2(t)；
3) displacement signal that control workbench (14) is collected in is time-domain signal, and signal processing and analysis software carries out FFT changes to it
Get frequency domain amplitude S in return1(ω) and S2(ω), the then dynamic stiffness under the test rotating speedChange test
Rotating speed is the dynamic stiffness curve for obtaining being distributed with rotating speed.
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| CN201710178599.1A CN106885736B (en) | 2017-03-23 | 2017-03-23 | A kind of spindle rotor dynamic stiffness Performance Test System |
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| CN201710178599.1A CN106885736B (en) | 2017-03-23 | 2017-03-23 | A kind of spindle rotor dynamic stiffness Performance Test System |
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Cited By (8)
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| CN107588739A (en) * | 2017-08-24 | 2018-01-16 | 沈阳透平机械股份有限公司 | Big space division turbo-compressor mouth circle deflection and rotor dynamic deflection test device |
| CN108031870A (en) * | 2017-12-04 | 2018-05-15 | 上海理工大学 | A kind of main shaft of numerical control machine tool loading performance test device and test evaluation method |
| CN108427378A (en) * | 2017-02-15 | 2018-08-21 | 发那科株式会社 | Numerical control device |
| CN109175417A (en) * | 2018-09-26 | 2019-01-11 | 江苏师范大学 | A kind of theoretical calculation of the quasi-static deformation of turner and the measurement method of dynamic deformation |
| CN109855865A (en) * | 2018-12-27 | 2019-06-07 | 广东省智能制造研究所 | A kind of high-speed electric main shaft accelerating lifetime testing equipment and its test method |
| CN111044242A (en) * | 2019-12-30 | 2020-04-21 | 哈尔滨工业大学 | Rigidity detection device and detection method for main shaft and guide rail of ultra-precise fly-cutting machine tool |
| CN112255579A (en) * | 2020-10-16 | 2021-01-22 | 西华大学 | Test bed |
| CN113188906A (en) * | 2021-04-25 | 2021-07-30 | 重庆科技学院 | Rock uniaxial tension test device and method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427378B (en) * | 2017-02-15 | 2020-06-23 | 发那科株式会社 | Numerical controller |
| CN108427378A (en) * | 2017-02-15 | 2018-08-21 | 发那科株式会社 | Numerical control device |
| US10698380B2 (en) | 2017-02-15 | 2020-06-30 | Fanuc Corporation | Numerical controller |
| CN107588739A (en) * | 2017-08-24 | 2018-01-16 | 沈阳透平机械股份有限公司 | Big space division turbo-compressor mouth circle deflection and rotor dynamic deflection test device |
| CN108031870A (en) * | 2017-12-04 | 2018-05-15 | 上海理工大学 | A kind of main shaft of numerical control machine tool loading performance test device and test evaluation method |
| CN109175417A (en) * | 2018-09-26 | 2019-01-11 | 江苏师范大学 | A kind of theoretical calculation of the quasi-static deformation of turner and the measurement method of dynamic deformation |
| CN109175417B (en) * | 2018-09-26 | 2020-07-03 | 江苏师范大学 | Theoretical calculation and actual measurement method for quasi-static deformation of turning workpiece |
| CN109855865A (en) * | 2018-12-27 | 2019-06-07 | 广东省智能制造研究所 | A kind of high-speed electric main shaft accelerating lifetime testing equipment and its test method |
| CN111044242A (en) * | 2019-12-30 | 2020-04-21 | 哈尔滨工业大学 | Rigidity detection device and detection method for main shaft and guide rail of ultra-precise fly-cutting machine tool |
| CN111044242B (en) * | 2019-12-30 | 2021-09-28 | 哈尔滨工业大学 | Rigidity detection device and detection method for main shaft and guide rail of ultra-precise fly-cutting machine tool |
| CN112255579A (en) * | 2020-10-16 | 2021-01-22 | 西华大学 | Test bed |
| CN112255579B (en) * | 2020-10-16 | 2023-09-19 | 西华大学 | Test bed |
| CN113188906A (en) * | 2021-04-25 | 2021-07-30 | 重庆科技学院 | Rock uniaxial tension test device and method |
| CN113188906B (en) * | 2021-04-25 | 2022-05-20 | 重庆科技学院 | Rock uniaxial tension test device and method |
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| CN106885736B (en) | 2019-08-13 |
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