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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Abstract
The invention provides an oscillation testing device of a servo motor of a numerical control machine tool. The oscillation testing device comprises a computer, an adjustable camera, a testing tool body and fixing devices, the testing tool body comprises a shallow tank, a solution with the kinematic viscosity of 0.6x10<-3>pa.s-50x10<-3>pa.s at temperature of 40 DEG C is contained in the shallow tank, the adjustable camera directly faces to the solution level, the height of the camera is adjusted to a level by which the cameral can just take a complete picture of the solution level, changes of the solution level are monitored by computer videos, and oscillation of the servo motor can be quantifiably tested by a speed sensor mounted on the testing tool body. The problem of difficulty in distinguishing vibration of the numerical control machine tool from vibration caused by oscillation of the servo motor in the prior art is solved by the oscillation testing device, and the oscillation testing device of the servo motor of the numerical control machine tool has good application prospect.
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)
1. numerically-controlled machine servomotor vibration test device; It is characterized in that: it comprises computer, scalable camera (4), testing tool body (2) and stationary installation (5); Described testing tool body comprises shallow pond (3), 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; Scalable camera (4) faces liquid level, and its height is as the criterion with the overall diagram that just can shoot liquid level, through computer video the level change situation is monitored; Testing tool body (2) adopts the position of carrying out axial feed motion on stationary installation (5) and the lathe to form firm being connected.
2. proving installation as claimed in claim 1 is characterized in that: described solution is a kind of in water, 20# machine oil, 30# machine oil or the 40# machine oil.
3. proving installation as claimed in claim 2 is characterized in that: can add an amount of pigment in the described solution.
4. like claim 2 or 3 described proving installations, it is characterized in that: described shallow tank depth is 30～50mm.
5. like right 1 described proving installation, it is characterized in that: on the described testing tool body acceleration transducer is installed.
6. like right 1 described proving installation, it is characterized in that: described testing tool body comprises the cover plate of transparent material, covers on the liquid level of shallow pond.
7. like right 5 described proving installations, it is characterized in that: the material of said cover plate can be glass or plastics.
8. like right 1 described proving installation, it is characterized in that: described stationary installation (5) can be arranged at the bottom or the sidepiece of testing tool body.
9. like right 1 or 8 described proving installations, it is characterized in that: described stationary installation (5) is magnetic support.
10. like right 1 described proving installation, it is characterized in that: described proving installation is according to test lathe needs adjustment size.
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 |
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| Publication Number | Publication Date |
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| CN102722138A true CN102722138A (en) | 2012-10-10 |
| CN102722138B CN102722138B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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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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| CN102722138B (en) | 2014-03-12 |
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Granted publication date: 20140312 Termination date: 20190625 |