CN102722138A - Oscillation testing device of servo motor of numerical control machine tool - Google Patents
Oscillation testing device of servo motor of numerical control machine tool Download PDFInfo
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- CN102722138A CN102722138A CN201210208653XA CN201210208653A CN102722138A CN 102722138 A CN102722138 A CN 102722138A CN 201210208653X A CN201210208653X A CN 201210208653XA CN 201210208653 A CN201210208653 A CN 201210208653A CN 102722138 A CN102722138 A CN 102722138A
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- servo motor
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- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 230000010355 oscillation Effects 0.000 title claims description 3
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 230000001133 acceleration Effects 0.000 claims description 12
- 239000010721 machine oil Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 9
- 239000013078 crystal Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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- Automatic Control Of Machine Tools (AREA)
Abstract
本发明提供了一种数控机床伺服电机振荡测试装置，它包括电脑、可调节摄像头、测试工具体和固定装置，所述的测试工具体包括浅池，浅池中盛放一层在40℃运动粘度为0.6×10-3pa.s～50×10-3pa.s的溶液；可调节摄像头正对着液面，其高度以刚好可以拍摄出液面的整体图为准，通过电脑视频对液面变化情况进行监测；可以通过安装于其上的速度传感器可量化的对伺服电机振荡情况进行测试。本发明的技术解决了现有技术中的难以分辨机床本身的振动与伺服电机振荡引起的振动的问题，具有良好的应用前景。
The invention provides a servo motor vibration testing device for a CNC machine tool, which includes a computer, an adjustable camera, a test tool body and a fixing device. A solution with a viscosity of 0.6×10 -3 pa.s～50×10 -3 pa.s; the camera can be adjusted to face the liquid surface, and its height is based on the overall picture of the liquid surface that can just be taken. The change of the liquid level is monitored; the vibration of the servo motor can be quantified through the speed sensor installed on it. The technology of the invention solves the problem in the prior art that it is difficult to distinguish the vibration of the machine tool itself from the vibration caused by the vibration of the servo motor, and has good application prospects.
Description
Technical field
The present invention relates to mechanical field, be specifically related to a kind of numerically-controlled machine servomotor vibration test device.
Background technology
At present acceleration transducer mainly is used for testing machine vibration on machine tool industry, and its principle mainly is to come work according to the principle of piezoelectric effect.So-called piezoelectric effect is exactly " being added in external force on the crystal except making crystal generation deformation for the heteropolar crystal that does not have symcenter; also will change the polarized state of crystal; set up electric field at crystals, this because mechanical force makes the phenomenon that medium takes place to polarize be called direct piezo electric effect ".The acceleration transducer that uses on the machine tool industry mainly is to utilize it inner because this characteristic of crystal modification that acceleration causes.Because this distortion can produce voltage,, just can change into voltage output by degree of will speed up as long as calculate the relation between the acceleration that produces voltage and applied.
The use of servomotor since will with the driving quality matches; So in numerically-controlled machine, need adjustment servomotor parameter, otherwise cause motor oscillates easily; When especially adopting the full cut-off ring servo-drive of grating chi; Because servomotor scrambler and the compensation of grating chi cause motor oscillates more easily when not matching, but the vibration of this moment is generally not obvious, the experience of many dependence is in the past judged or is judged through finishing observation workpiece surface roughness; And when utilizing testing tool such as acceleration transducer etc. to test; Because it judges that principle is to have utilized piezoelectric effect; And the vibration that vibration during the lathe operate as normal and servomotor vibration cause all can produce this effect; Therefore, be difficult to judge that the vibration of lathe itself still is because the vibration that the servomotor vibration causes.
Summary of the invention
The object of the invention provides a kind of numerically-controlled machine servomotor vibration test device, and this numerically-controlled machine servomotor vibration test device can have been got rid of the vibration of lathe itself, finds this phenomenon of the failure of servomotor vibration accurately.
Numerically-controlled machine servomotor vibration test device of the present invention comprises computer, scalable camera, testing tool body, stationary installation, and its technical scheme is: the testing tool body comprises shallow pond, and holding one deck in the shallow pond is 0.6 * 10 40 ℃ of kinematic viscosity
-3Pa.s～50 * 10
-3The solution of pa.s; The scalable camera faces liquid level, and its height is as the criterion with the overall diagram that just can shoot liquid level, detects through computer video; The testing tool body adopts the position of carrying out axial feed motion on stationary installation and the lathe to form firm being connected.
Numerically-controlled machine servomotor vibration test device of the present invention; Solution wherein is a kind of in water, 20# machine oil, 30# machine oil or the 40# machine oil; Perhaps adopt other liquid in the above-mentioned range of viscosities, oscillation mark that can clear embodiment with liquid level serves as to select foundation.
Numerically-controlled machine servomotor vibration test device of the present invention can add an amount of pigment and make that the ripple characteristic is more obvious in the solution wherein.
Numerically-controlled machine servomotor vibration test device of the present invention, its shallow tank depth is 30～50mm, liquid height can satisfy the observation needs and gets final product in the shallow pond.
On the numerically-controlled machine servomotor vibration test device of the present invention acceleration transducer can be installed.At this moment, during the integral installation of numerically-controlled machine servomotor vibration test device, the detection side that should make acceleration transducer is to consistent with the machine tool feed direction.
Numerically-controlled machine servomotor vibration test device of the present invention, the cover plate that transparent material can be installed in the top, shallow pond of testing tool body covers on the liquid level of shallow pond.
Numerically-controlled machine servomotor vibration test device of the present invention, the material of cover plate can be glass or plastics.
Numerically-controlled machine servomotor vibration test device of the present invention, its stationary installation can be arranged at the bottom or the sidepiece of testing tool body, like Fig. 4 and shown in Figure 5.
Numerically-controlled machine servomotor vibration test device of the present invention, its stationary installation is magnetic support, bolt, perhaps other fixed connection mode.
Numerically-controlled machine servomotor vibration test device of the present invention can be adjusted size according to test lathe needs, and is installed on the position that is fit on the lathe.
Numerically-controlled machine servomotor vibration test device of the present invention; Liquid fluctuating situation through camera is taken is passed on the computer and observes, and the vibration that can judge the operate as normal of lathe own accurately still is because the vibration that the servomotor vibration causes; The foundation of judging is exactly two kinds of pairing different liquid fluctuating situation of vibration; As shown in Figures 2 and 3, the liquid fluctuating that the vibration of the operate as normal of lathe own causes is very little, and liquid level is tranquil basically calm; And the vibration that the servomotor vibration causes is bigger for the influence of liquid level, and can occurring significantly, fluctuation rises and falls.Numerically-controlled machine servomotor vibration test device simple installation of the present invention; Can be installed on the kinematic axis of lathe workbench or feed motion of feed motion; Can make things convenient for the working condition of judging the lathe servomotor rapidly whether normal, after certain import full cut-off ring high-speed numeric control milling machine overhaul, because grating chi and the compensation of servomotor scrambler do not match; Cause that the processing work surfaceness is not enough, can be found to be the servomotor vibration rapidly through this device and cause.
Numerically-controlled machine servomotor vibration test device of the present invention; In clear and definite vibration is because after the servomotor vibration causes; The time-domain and frequency-domain signal of acceleration transducer test that can be through being mounted thereon analyzed concrete displacement and vibration deviation amplitude, quantifiable servomotor vibration situation is tested.
Description of drawings
Fig. 1 is the structural representation of servomotor vibration test device of the present invention.
Fig. 2 is the liquid level ripple synoptic diagram that the present invention shows when the lathe operate as normal.
Fig. 3 is the liquid level ripple synoptic diagram that the present invention shows when the vibration that the servomotor vibration causes.
Fig. 4 is the side schematic view that stationary installation of the present invention is positioned at sidepiece.
Fig. 5 is the side schematic view that stationary installation of the present invention is positioned at the bottom.
Sequence number among Fig. 1 and each several part structure and title are following:
1 is acceleration transducer, and 2 is the testing tool body, and 3 is shallow pond, and 4 is the scalable camera, and 5 is stationary installation.
Embodiment
Below in conjunction with accompanying drawing 1 a kind of embodiment of the present invention is described:
After numerically-controlled machine starts; The liquid fluctuating situation of the 20# machine oil of taking through scalable camera 4; Be passed on the computer and observe, judge whether to be the servomotor vibration, if the affirmation vibration is because the servomotor vibration causes; Analyze concrete displacement and vibration deviation amplitude through the time-domain and frequency-domain signal of acceleration transducer 1 test, the servomotor vibration situation of quantification.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208653.XA CN102722138B (en) | 2012-06-25 | 2012-06-25 | Oscillation testing device of servo motor of numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208653.XA CN102722138B (en) | 2012-06-25 | 2012-06-25 | Oscillation testing device of servo motor of numerical control machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102722138A true CN102722138A (en) | 2012-10-10 |
| CN102722138B CN102722138B (en) | 2014-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210208653.XA Expired - Fee Related CN102722138B (en) | 2012-06-25 | 2012-06-25 | Oscillation testing device of servo motor of numerical control machine tool |
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| Country | Link |
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| CN (1) | CN102722138B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115165679A (en) * | 2022-09-05 | 2022-10-11 | 武汉鑫佳捷印务有限公司 | Ink detection surface tension measuring device for digital printing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562563A (en) * | 2004-03-31 | 2005-01-12 | 清华大学 | Method for compensating error of numeric-contrlled machine and system |
| CN1794556A (en) * | 2006-01-04 | 2006-06-28 | 天津大学 | Ring structured lin wave contactless liquid medium ultrasonic wave electric machine |
| CN201166601Y (en) * | 2008-02-27 | 2008-12-17 | 广东威灵电机制造有限公司 | Detection station for electric motor oscillation |
| CN202885964U (en) * | 2012-06-25 | 2013-04-17 | 广西工学院 | Testing apparatus for oscillation of numerical control machine tool servo motor |
-
2012
- 2012-06-25 CN CN201210208653.XA patent/CN102722138B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562563A (en) * | 2004-03-31 | 2005-01-12 | 清华大学 | Method for compensating error of numeric-contrlled machine and system |
| CN1794556A (en) * | 2006-01-04 | 2006-06-28 | 天津大学 | Ring structured lin wave contactless liquid medium ultrasonic wave electric machine |
| CN201166601Y (en) * | 2008-02-27 | 2008-12-17 | 广东威灵电机制造有限公司 | Detection station for electric motor oscillation |
| CN202885964U (en) * | 2012-06-25 | 2013-04-17 | 广西工学院 | Testing apparatus for oscillation of numerical control machine tool servo motor |
Non-Patent Citations (1)
| Title |
|---|
| 莫翔明等: "基于ANSYS的龙门式数控雕铣机的动态特性研究", 《机械制造》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115165679A (en) * | 2022-09-05 | 2022-10-11 | 武汉鑫佳捷印务有限公司 | Ink detection surface tension measuring device for digital printing |
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| Publication number | Publication date |
|---|---|
| CN102722138B (en) | 2014-03-12 |
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Granted publication date: 20140312 Termination date: 20190625 |