CN103158033A - Testing device for numerical control machine tool - Google Patents
Testing device for numerical control machine tool Download PDFInfo
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- CN103158033A CN103158033A CN2011104094432A CN201110409443A CN103158033A CN 103158033 A CN103158033 A CN 103158033A CN 2011104094432 A CN2011104094432 A CN 2011104094432A CN 201110409443 A CN201110409443 A CN 201110409443A CN 103158033 A CN103158033 A CN 103158033A
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- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 238000006073 displacement reaction Methods 0.000 claims abstract description 78
- 238000005259 measurement Methods 0.000 claims abstract description 52
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Abstract
The invention relates to the field of numerical control machine toll testing and controlling, and provides a testing device for a numerical control machine tool. The testing device for the numerical control machine tool comprises a power source module, a force measurement module, a displacement measurement module, a strain measurement module, a voltage division circuit, a voltage stabilization circuit, a button switch and a data colleting module. A first collecting port of the data collecting module is connected to an output end of the force measurement module, a second collecting port of the data collecting module is connected to an output end of the voltage division circuit, a third collecting port of the data collecting module is connected to an output end of the strain measurement module, and the data collecting module collects dynamic force signals, displacement signals and dynamic strain signals through the collecting ports. The testing device integrates a force sensor, a displacement sensor, a strain sensor and the like, and collects all data at the same time through the data collecting module, measurement and use are convenient, and the testing data are good in reliability and high in accuracy.
Description
Technical field
The invention belongs to the Digit Control Machine Tool measurement and control area, relate in particular to a kind of testing arrangement for Digit Control Machine Tool.
Background technology
In the design and Control Engineering of Digit Control Machine Tool, the relation of the outputs such as power input and displacement, strain, acceleration is very important, needs to use for reference these data (power, displacement, strain, acceleration) and solves actual engineering problem.Therefore, the test of these data and collecting work (concerning the accuracy of data) are also quite important.
Yet this data acquisition clock is different, each test data of same tested object (as machine tool chief axis, crossbeam etc.) (power input and displacement, strain, acceleration output) be difficult to be incorporated into together with analysis; And can't judge the sequential relationship of input and output, solve engineering problem also can only the binding isotherm principle and empirical method deal with.This is difficult to control with project engineering for Digit Control Machine Tool provides data foundation accurately and reliably.
The control of Digit Control Machine Tool and project engineering are the work of very complex.The complexity of its frame for movement requires tester to want reliable, easy to use.At present, the power input of Digit Control Machine Tool engineering and displacement, strain, acceleration output are all test condition or system by independently building tester, and then Usage data collection equipment collecting test data.More than its electric wiring, and staggered with the complexity of signal line, make extremely inconvenience of test job, simultaneously the reliability of the data of test also be affected (data are disturbed).Moreover, although these independently test data gather under same clock also can realizing under the control of data acquisition module 6, the test condition of the sensor that each is separate (Testing factors such as its placement location and vibration, temperature) is different; This is difficult to test the accurate data of the outputs such as the displacement that obtains Digit Control Machine Tool, strain, acceleration under same power input.This is not only difficult, is also quite to lose time with uncertain.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of testing arrangement for Digit Control Machine Tool, be intended to solve in existing testing arrangement that each sensor is separate, test condition is different causes extremely inconvenience of test job, and also affected problem of the accuracy of test data, reliability.
The embodiment of the present invention is achieved in that a kind of testing arrangement for Digit Control Machine Tool, comprising:
Power module;
The power measurement module, its power input is connected with described power module, amplifies for detection of the dynamic force signal and with described dynamic force signal;
The displacement measurement module, its power input is connected with described power module, amplifies for detection of displacement signal and with described displacement signal;
The strain measurement module, its power input is connected with described power module, amplifies for detection of the dynamic strain signal and with described dynamic strain signal;
Bleeder circuit, its input is connected to the output of described displacement measurement module; Displacement signal after described amplification is carried out exporting after voltage division processing;
Mu balanced circuit, its power input is connected with described power module, and the voltage that described power module is exported carries out the voltage stabilizing processing;
Press button, its input is connected to the output of described mu balanced circuit, and the output of described press button is connected to the reset terminal of described strain measurement module;
Data acquisition module, first gathers the output that port is connected to described power measurement module, second of described data acquisition module gathers the output that port is connected to described bleeder circuit, and the 3rd of described data acquisition module gathers the output that port is connected to described strain measurement module; Described data acquisition module is by gathering the described dynamic force signal of port processing, described displacement signal and described dynamic strain signal.
Further, described data acquisition module also is connected with computer, and by described computer, described data acquisition module being sampled arranges and the channel selecting setting.
Further, described power module comprises: the power conversion pressure unit, 24V DC voltage converting unit and the filter unit that connect successively; And the first toggle switch, the second toggle switch and the 3rd toggle switch that are connected to the output of described filter unit; The external 220V alternating current of the input of described power conversion pressure unit; The output of described the first toggle switch connects described displacement measurement module, and the output of described the second toggle switch connects described power measurement module, and the output of described the 3rd toggle switch connects respectively described strain measurement module and described mu balanced circuit.
Further, described displacement measurement module comprises: displacement transducer, for detection of displacement signal; And the displacement signal amplifier, its power input is connected to the output of described the first toggle switch, and the signal input part of described displacement signal amplifier is connected with described displacement transducer, and the output of described displacement signal amplifier is connected with described bleeder circuit; Described displacement signal amplifier amplifies rear output with the displacement signal that detects.
Further, described power measurement module comprises: the power sensor, for detection of the dynamic force signal; And force signal amplifier, its power input is connected to the output of described the second toggle switch, the signal input part of described force signal amplifier is connected with described power sensor, and the output of described force signal amplifier gathers port with first of described data acquisition module and is connected.
Further, described strain measurement module comprises: strain transducer, for detection of the dynamic strain signal; And the strain signal amplifier, its power input is connected to the output of described the 3rd toggle switch, and the signal input part of described strain signal amplifier is connected with described strain transducer; The output of described strain signal amplifier gathers port with the 3rd of described data acquisition module and is connected.
The testing arrangement that the embodiment of the present invention provides combines the sensors such as power, displacement, strain, gathers all data under same clock by data acquisition module, tests very easy to usely, and test data good reliability, accuracy are high.
Description of drawings
Fig. 1 is the modular structure block diagram of the testing arrangement that is used for Digit Control Machine Tool that provides of the embodiment of the present invention;
Fig. 2 is the internal module structure chart of power module in the testing arrangement that provides of the embodiment of the present invention;
Fig. 3 is the internal circuit diagram of the testing arrangement that provides of the embodiment of the present invention;
Fig. 4 is the curve map of the embodiment of the present invention power input data, displacement data and the strain data that provide.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The testing arrangement that is used for Digit Control Machine Tool that the embodiment of the present invention provides is applicable to the measurement of the real physical such as power input and displacement, strain, acceleration output, and can in the sequential relationship of analyzing under same clock between them, deal with problems for the Digit Control Machine Tool Control Engineering real data is provided.
Fig. 1 shows the modular structure block diagram of this testing arrangement, and book, only show the part relevant to the embodiment of the present invention for convenience of explanation, and details are as follows:
The testing arrangement that is used for Digit Control Machine Tool comprises: power module 1, displacement measurement module 2, bleeder circuit 3, power measurement module 4, strain measurement module 5, data acquisition module 6, mu balanced circuit 7 and press button 8; Wherein, the power input of power measurement module 4 is connected with power module 1, amplifies for detection of the dynamic force signal and with the dynamic force signal; The power input of displacement measurement module 2 is connected with power module 1, amplifies for detection of displacement signal and with displacement signal; The power input of strain measurement module 5 is connected with power module 1, amplifies for detection of the dynamic strain signal and with the dynamic strain signal; The input of bleeder circuit 3 is connected to the output of displacement measurement module 2; Displacement signal after amplifying is carried out exporting after voltage division processing; The power input of mu balanced circuit 7 is connected with power module 1, and the voltage that power module 1 is exported carries out the voltage stabilizing processing; The input of press button 8 is connected to the output of mu balanced circuit 7, and the output of press button 8 is connected to the reset terminal of strain measurement module 5; First of data acquisition module 6 gathers the output that port is connected to power measurement module 4, second of data acquisition module 6 gathers the output that port is connected to bleeder circuit 3, and the 3rd of data acquisition module 6 gathers the output that port is connected to strain measurement module 5; Data acquisition module 6 is by gathering port processing dynamic force signal, displacement signal and dynamic strain signal.
In the design and Control Engineering of Digit Control Machine Tool, the clear excitation and the sequential relationship that responds is conducive to the vibration mode of active control structure.The research excitation needs test, acquisition instrument to obtain data (outputs such as power input and displacement, strain, acceleration) relation accurately with the relation of response.The testing arrangement that is used for Digit Control Machine Tool that the embodiment of the present invention provides is exactly the tester platform that combines the sensors such as power, displacement, strain, utilizes data acquisition module 6 can gather all data under same clock.The circuit of the sensors such as power, displacement, strain has all been built on testing arrangement, test very easy to use, the test data good reliability.
In embodiments of the present invention, data acquisition module 6 also is connected with computer, and by computer, data acquisition module 6 being sampled arranges and the channel selecting setting.Wherein, data acquisition module 6 adopts the data acquisition front of the Belgian LMS SCADAS305 of company.
In embodiments of the present invention, the modular structure of power module 1 as shown in Figure 2, power module 1 comprises: power conversion pressure unit 11,24V DC voltage converting unit 12, filter unit 13 and the first toggle switch 14, the second toggle switch 15 and the 3rd toggle switch 16 that are connected to the output of filter unit 13; Wherein, power conversion pressure unit 11,24V DC voltage converting unit 12 are connected with filter unit successively and are connected; The external 220V alternating current of the input of power conversion pressure unit 11; The output that the output of output connecting position shift measurement module 2, the second toggle switches 15 of the first toggle switch 14 connects power measurement module 4, the three toggle switches 16 connects respectively strain measurement module 5 and mu balanced circuit 7.
In embodiments of the present invention, for guaranteeing each signal amplifier and sensor steady operation, it is that the wave filter of FN409 carries out filtering to the 24VDC power supply of 24V DC voltage converting unit 12 output that filter unit 13 can adopt model, absorbs the voltge surge or the fluctuation that are caused by power switch or measurement circuit; Each signal amplifier is supplied with in the independent wiring of power supply of filter unit 13 outputs simultaneously.
In embodiments of the present invention, displacement measurement module 2 comprises: displacement signal amplifier 21 and displacement transducer 22; Wherein displacement transducer 22 is for detection of displacement signal; The power input of displacement signal amplifier 21 is connected to the output of the first toggle switch 14, and the signal input part of displacement signal amplifier 21 is connected with displacement transducer 22, and the output of displacement signal amplifier 21 is connected with bleeder circuit 3; Displacement signal amplifier 21 amplifies rear output with the displacement signal that detects.
As one embodiment of the present of invention, the working power of displacement signal amplifier 21 is-24VDC to adopt the method for the electric voltage reverse-connection of COM end and Vs to realize; Therefore its amplifying signal output voltage adopts bleeder circuit 3 to realize amplifying signal voltage drop half greater than the sampled voltage of data acquisition module 6; Concrete, it is that the operational amplifier of LM6134 is realized that bleeder circuit 3 can adopt model.Displacement signal amplifier 21 and displacement transducer 22 need energising preheating 10 minutes.
In embodiments of the present invention, power measurement module 4 comprises: force signal amplifier 41 and power sensor 42; Wherein power sensor 42 is for detection of the dynamic force signal; The power input of force signal amplifier 41 is connected to the output of the second toggle switch 15, and the signal input part of force signal amplifier 41 is connected with power sensor 42, and the output of force signal amplifier 41 gathers port with first of data acquisition module 6 and is connected.
In embodiments of the present invention, strain measurement module 5 comprises: strain signal amplifier 51 and strain transducer 52; Wherein strain transducer 52 is for detection of the dynamic strain signal; The power input of strain signal amplifier 51 is connected to the output of the 3rd toggle switch 16, and the signal input part of strain signal amplifier 51 is connected with strain transducer 52; The output of strain signal amplifier 51 gathers port with the 3rd of data acquisition module 6 and is connected.
Fig. 3 shows the physical circuit figure for the testing arrangement of Digit Control Machine Tool; The first toggle switch 14 is used for the working power of control bit shifting signal amplifier 21, thus further control bit displacement sensor 22 work; The second toggle switch 15 is used for the working power of control signal amplifier 41, thus further control sensor 42 work; The 3rd toggle switch 16 is used for controlling the working power of strain signal amplifier 51, thereby further controls strain transducer 52 work.As one embodiment of the present of invention, force signal amplifier 41 and strain signal amplifier 51 can adopt Kistler dynamic strain signal amplifier, due to the work of Kistler dynamic strain signal amplifier or reset and all need triggering signal; During work measurement, its Operate port needs 0～0.7V voltage triggered, needs 2～7V voltage triggered when resetting; Therefore, can adopt the mu balanced circuit 7 of a normally-open normally-close and press button 8 to realize; Particularly: 0V voltage is received the normal-closed end of press button 8, and 5V voltage is received the Chang Kaiduan of press button 8, the Operate port of the output termination Kistler dynamic strain signal amplifier of press button 8.In order to guarantee that cabling is unified, the output of each signal amplifier is forwarded on circuit board, then uses the winding displacement unification to transfer to separately output port.
Fig. 4 inputs the curve map of data, displacement data and strain data by the power that the testing arrangement that is used for Digit Control Machine Tool that the embodiment of the present invention provides collects, wherein S1 represents power input data and curves, S2 represents the displacement data curve, and S3 represents the strain data curve.This testing arrangement combines tester and the data acquisition module 6 of each single parameter (such as power, displacement, strain and acceleration), adopts the same collector (data acquisition module 6 SCADA) to gather the data of each parameter; The test parameters such as power, displacement, strain and acceleration all gather under same clock; Gauge tap, 24V power supply, filter unit, dividing potential drop and reset circuit are stirred in use realized the detecting electric line system, thereby guaranteed that these testers can be carried out test job by any selection.Can make like this test job of Machine-Tool Control and project engineering very convenient, orderly.The Practical Project problem of the required solution of Digit Control Machine Tool Control Engineering is nothing more than being the problem that encourages between (input) and response (output).Use this testing arrangement test force input and the outputs such as displacement, strain and acceleration, then Usage data collection module 6 gathers these test datas under same clock, and the sequential relationship of confluence analysis test data.Get final product the problem place of the outputs such as judgment input and displacement, strain and acceleration according to the result of data analysis, and then allow the engineer use rational method to reconcile the sequential relationship of the outputs such as input and displacement, strain and acceleration, to solve the problem of Digit Control Machine Tool Control Engineering.This way is economy but also reliable not only.
In the design and Control Engineering of Digit Control Machine Tool, the clear excitation and the sequential relationship that responds is conducive to the vibration mode of active control structure.The research excitation needs test, acquisition instrument to obtain data (outputs such as power input and displacement, strain, acceleration) relation accurately with the relation of response.The testing arrangement that the embodiment of the present invention provides is control and the project engineering of Digit Control Machine Tool, excitation is provided convenience with response test and unified test condition (position, vibration, temperature etc.), and provide in real time, data accurately, be conducive to help to solve rapidly the problem of Machine Tool design and Control Engineering.
The testing arrangement that the embodiment of the present invention provides combines the sensors such as power, displacement, strain, gathers all data under same clock by data acquisition module, tests very easy to usely, and test data good reliability, accuracy are high.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a testing arrangement that is used for Digit Control Machine Tool, is characterized in that, comprising:
Power module;
The power measurement module, its power input is connected with described power module, amplifies for detection of the dynamic force signal and with described dynamic force signal;
The displacement measurement module, its power input is connected with described power module, amplifies for detection of displacement signal and with described displacement signal;
The strain measurement module, its power input is connected with described power module, amplifies for detection of the dynamic strain signal and with described dynamic strain signal;
Bleeder circuit, its input is connected to the output of described displacement measurement module; Displacement signal after described amplification is carried out exporting after voltage division processing;
Mu balanced circuit, its power input is connected with described power module, and the voltage that described power module is exported carries out the voltage stabilizing processing; Press button, its input is connected to the output of described mu balanced circuit, and the output of described press button is connected to the reset terminal of described strain measurement module;
Data acquisition module, first gathers the output that port is connected to described power measurement module, second of described data acquisition module gathers the output that port is connected to described bleeder circuit, and the 3rd of described data acquisition module gathers the output that port is connected to described strain measurement module; Described data acquisition module is by gathering the described dynamic force signal of port processing, described displacement signal and described dynamic strain signal.
2. testing arrangement as claimed in claim 1, is characterized in that, described data acquisition module also is connected with computer, and by described computer, described data acquisition module being sampled arranges and the channel selecting setting.
3. testing arrangement as claimed in claim 1, is characterized in that, described power module comprises:
The power conversion pressure unit, 24V DC voltage converting unit and the filter unit that connect successively; And the first toggle switch, the second toggle switch and the 3rd toggle switch that are connected to the output of described filter unit;
The external 220V alternating current of the input of described power conversion pressure unit; The output of described the first toggle switch connects described displacement measurement module, and the output of described the second toggle switch connects described power measurement module, and the output of described the 3rd toggle switch connects respectively described strain measurement module and described mu balanced circuit.
4. testing arrangement as claimed in claim 3, is characterized in that, described displacement measurement module comprises:
Displacement transducer is for detection of displacement signal; And
The displacement signal amplifier, its power input is connected to the output of described the first toggle switch, and the signal input part of described displacement signal amplifier is connected with described displacement transducer, and the output of described displacement signal amplifier is connected with described bleeder circuit; Described displacement signal amplifier amplifies rear output with the displacement signal that detects.
5. testing arrangement as claimed in claim 3, is characterized in that, described power measurement module comprises:
The power sensor is for detection of the dynamic force signal; And
Force signal amplifier, its power input is connected to the output of described the second toggle switch, the signal input part of described force signal amplifier is connected with described power sensor, and the output of described force signal amplifier gathers port with first of described data acquisition module and is connected.
6. testing arrangement as claimed in claim 3, is characterized in that, described strain measurement module comprises:
Strain transducer is for detection of the dynamic strain signal; And
The strain signal amplifier, its power input is connected to the output of described the 3rd toggle switch, and the signal input part of described strain signal amplifier is connected with described strain transducer; The output of described strain signal amplifier gathers port with the 3rd of described data acquisition module and is connected.
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| CN201110409443.2A CN103158033B (en) | 2011-12-09 | 2011-12-09 | A kind of testing arrangement for Digit Control Machine Tool |
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| CN201110409443.2A CN103158033B (en) | 2011-12-09 | 2011-12-09 | A kind of testing arrangement for Digit Control Machine Tool |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0356636A2 (en) * | 1988-09-02 | 1990-03-07 | Kelch Gmbh + Co. | Pulling force measuring device for tool-clamping devices |
| KR20020076823A (en) * | 2001-03-30 | 2002-10-11 | 광주과학기술원 | Apparatus for controlling a balance in a rotating machine and method therefor |
| CN101029856A (en) * | 2006-12-30 | 2007-09-05 | 北京航空航天大学 | System for measuring and analyzing digital-controlled machine-tool dynamic characteristic |
| CN102004021A (en) * | 2010-10-27 | 2011-04-06 | 上海理工大学 | Static stiffness testing method for horizontal machining centre |
| CN102134851A (en) * | 2011-02-17 | 2011-07-27 | 天津市隆安达建筑仪器科技发展有限公司 | Automatic recording instrument for static pressure pile construction and static pressure pile construction device |
-
2011
- 2011-12-09 CN CN201110409443.2A patent/CN103158033B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0356636A2 (en) * | 1988-09-02 | 1990-03-07 | Kelch Gmbh + Co. | Pulling force measuring device for tool-clamping devices |
| KR20020076823A (en) * | 2001-03-30 | 2002-10-11 | 광주과학기술원 | Apparatus for controlling a balance in a rotating machine and method therefor |
| CN101029856A (en) * | 2006-12-30 | 2007-09-05 | 北京航空航天大学 | System for measuring and analyzing digital-controlled machine-tool dynamic characteristic |
| CN102004021A (en) * | 2010-10-27 | 2011-04-06 | 上海理工大学 | Static stiffness testing method for horizontal machining centre |
| CN102134851A (en) * | 2011-02-17 | 2011-07-27 | 天津市隆安达建筑仪器科技发展有限公司 | Automatic recording instrument for static pressure pile construction and static pressure pile construction device |
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Address after: 518000 5 / F, 1 / 2 / F, 14 / F, 17 / F, No.3 Factory building, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Han's CNC Technology Co.,Ltd. Address before: 518000 5 / F, 1 / 2 / F, 14 / F, 17 / F, No.3 Factory building, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HAN'S CNC SCIENCE AND TECHNOLOGY Co.,Ltd. |