CN102455682A - Method for compensating machine tool geometric errors based on VB program - Google Patents
Method for compensating machine tool geometric errors based on VB program Download PDFInfo
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- CN102455682A CN102455682A CN2010105275549A CN201010527554A CN102455682A CN 102455682 A CN102455682 A CN 102455682A CN 2010105275549 A CN2010105275549 A CN 2010105275549A CN 201010527554 A CN201010527554 A CN 201010527554A CN 102455682 A CN102455682 A CN 102455682A
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Abstract
The invention discloses a method for compensating machine tool geometric errors based on a VB (Visual Basic) program. The technology support point is to solve the problem of low parts processing precision caused by normal machine tool geometric errors. A compensation system is composed of a computer software system, a program control system, a power supply driving system, a feeding system, an insulating system, a connecting piece, a connection circuit and the like. The compensation system is combined with the software, and the software implements control on displacement of an electrostrictive ceramic, so as to make the electrostrictive ceramic realize the feeding with any displacement within an output displacement range thereof; and the actual output displacement of a micro-feeding tool is measured so as to learn the working condition of a micro-feeding system.
Description
Technical field
The present invention relates to a kind of method that the lathe geometric error is compensated, be based on the method that the VB program compensates the lathe geometric error specifically.
Background technology
Ultraprecision Machining is an indispensable key means in the sophisticated technology product development as the basic technology in the high-tech sector.Simultaneously, it is promoting the development of association areas such as semiconductor technology, photoelectric technology, material science and measuring technique again.Therefore, Ultraprecision Machining is the important support technology of a national science technical development, also is the important symbol of weighing a national science technical merit.
Along with the develop rapidly of science and technology, fields such as space flight, aviation, optics, electronics, machinery, biology, communication, active demand micrometric displacement technology.In Aero-Space, the tracking of satellite camera catoptron adjustment, the adjustment of antenna.Ultra precision cutting device, error compensator etc. in the machine-building.Fiber alignment, optical communication focusing technology etc. in the optical fiber communication.The micrometric displacement technology is along with subject development such as electronic technology, aerospace, bioengineering, physics, ultraprecise processing and develop rapidly.And above-mentioned bucking-out system and device expensive, complex operation.
Summary of the invention
The present invention's purpose is to remedy above-mentioned deficiency, discloses a kind of method that the lathe geometric error is compensated based on the VB program simple to operate.
Design proposal of the present invention is such: at first measure the machine tool guideway geometric error and deposit these errors in the bucking-out system software of being write in; Utilize the size of the actual feeding of optical grating ruler measurement cutter; The displacement signal input computing machine that obtains; Write a cover program on computers; This program is used for receiving the displacement signal that optical grating ruler measurement obtains, through computing machine to displacement signal and the original machine tool error data of having measured that deposited computing machine in carry out synchronously, computing machine sends corresponding signal and passes to electrostrictive ceramic drive power supply through D/A converter; Make 0 to 300 volt of electrostrictive ceramic drive power supply bad student's DC voltage; Different voltages with different makes cutter that linear different small moving arranged, and these small actual displacements are surveyed by the grating chi again, sends so cyclic process of data thereby the grating chi sends data to the control tool feeding to the realization of displacement data input computer again to actual being fed into of the cutter of surveying; Even reach the purpose that error is compensated, finally reach the requirement that improves machining precision.
Description of drawings
Fig. 1 is that cutter of the present invention is installed schematic diagram;
Fig. 2 is bucking-out system building structure figure of the present invention.
Embodiment
Below in conjunction with the accompanying drawing instance the present invention is done and to describe in further detail.
1. computing machine: control system adopts the control of computer realization to the electrostriction ceramics driver; Computing machine sends the displacement commands output displacement of little feeding cutter that also responsible reception capacitive transducer measures except being responsible for causing flexible porcelain driving power through serial ports to piezoelectricity.
2. electrostrictive ceramic drive power supply: according to the output control signal of computing machine, export certain control voltage signal, drive the electrostriction ceramics driver and produce corresponding displacement variable.
3. electrostriction ceramics driver: employing type electrostriction ceramics micro positioner, the adjustment through driving power voltage realizes the flexible of micro positioner, thereby reaches the effect of microfeed.
4. inductance amesdial: be used to measure the actual output displacement of little feeding cutter, its basic parameter is: range 2mm, resolution 0.1 μ m, operating temperature range-20～80 ℃.
5.A/D, the D/A transition card: its effect is that the displacement variable (showing as voltage) of micro-feed stage that capacitive transducer is measured converts digital signal into and passes to computing machine and carry out data processing.
Wherein, the electrostriction driving power is the key component that improves the micro-feeding device frequency response, and its performance is satisfied:
1) controllability: the control signal of input 0-5V, corresponding 0-300V or other range of voltages.
2) resolution wants high: the corresponding 0-30 of 0-300V for example, then V/ μ m is 10, realizes 0.1 stable μ m, and the stable resolution that is higher than 0.1V then must be provided.
3) stability: the factor of Yin Re and time and under the situation of same input not, output variation range exceed ± and 75mV stability should receive many-sided the influence, design like power supply; The thermal stability of device and correlated quality; Grid voltage change, so factors such as load variations are except adopting backfeed loop on circuit design; Outside the high performance device; Driving power should more energy be placed on the computer control aspect, reach the stable of power supply by the variation of computer control input quantity, so should have the interface with microcomputer.
4) response speed: different according to use occasion, require also different.Improve frequency response speed, corresponding usable range also enlarges.So frequency response speed is the bigger the better.
5) ripple: can cause the flexible fluctuation of pottery, the size of undulate quantity depends on the size of ripple.As long as ripple is more little good more in theory, in fact less than 75mV.
Claims (2)
1. method that the lathe geometric error is compensated based on the VB program; It is characterized in that: be the basis with the machine tool guideway theory of errors, a kind of machine tool guideway error compensating method that adopted 20mm flush type eddy current displacement sensor, USB2828 capture card, DYW-3 type piezo-ceramic micro displacement unit driving power, VB program design.This system changes into electric signal to measured (machine tool guideway error) through displacement transducer; AD function with the USB2828 data collecting card changes into digital signal to the electric signal of sensor output; Go out the required magnitude of voltage of compensating error by the sensitivity of sensor and the sensitivity calculations of driving power, give driving power with the DA function output electric signal of capture card again.The input signal of different driving powers constantly changes with the change of the output voltage signal of capture card; Thereby the output voltage of driving power also changes thereupon; The displacement (being the displacement of point of a knife) of the output voltage control micro positioner of driving power changes, and realizes the compensation of guiding error.
2. method according to claim 1; It is characterized in that: piezo-ceramic micro displacement unit spare is a kind of novel micro-displacement driver spare; It utilizes stupalith adding the deformation output micrometric displacement that produces under the controllable electric field effect; Avoid the friction in the physical construction, gap, had unlimited resolution in theory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010105275549A CN102455682A (en) | 2010-11-02 | 2010-11-02 | Method for compensating machine tool geometric errors based on VB program |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105275549A CN102455682A (en) | 2010-11-02 | 2010-11-02 | Method for compensating machine tool geometric errors based on VB program |
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| CN102455682A true CN102455682A (en) | 2012-05-16 |
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| CN2010105275549A Pending CN102455682A (en) | 2010-11-02 | 2010-11-02 | Method for compensating machine tool geometric errors based on VB program |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470657A (en) * | 2017-09-27 | 2017-12-15 | 嘉兴学院 | The power spindle device and error compensating method of regular polygon turning error compensation |
| CN107953144A (en) * | 2016-10-18 | 2018-04-24 | 发那科株式会社 | The rote learning device and system of processing of the setting value of learning machine tool machining program |
| CN111687544A (en) * | 2020-06-24 | 2020-09-22 | 南京工业职业技术学院 | Laser resistance adjusting method based on precise displacement of piezoelectric ceramics |
| CN116222713A (en) * | 2023-03-21 | 2023-06-06 | 深圳艾依灵科技有限公司 | Sanitation truck weighing sensor and control method thereof |
-
2010
- 2010-11-02 CN CN2010105275549A patent/CN102455682A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953144A (en) * | 2016-10-18 | 2018-04-24 | 发那科株式会社 | The rote learning device and system of processing of the setting value of learning machine tool machining program |
| CN107953144B (en) * | 2016-10-18 | 2020-03-13 | 发那科株式会社 | Machine learning device for learning set values of machine tool machining program, and machining system |
| US10606233B2 (en) | 2016-10-18 | 2020-03-31 | Fanuc Corporation | Machine learning apparatus that learns setting value in machining program of machine tool, and machining system |
| CN107470657A (en) * | 2017-09-27 | 2017-12-15 | 嘉兴学院 | The power spindle device and error compensating method of regular polygon turning error compensation |
| CN111687544A (en) * | 2020-06-24 | 2020-09-22 | 南京工业职业技术学院 | Laser resistance adjusting method based on precise displacement of piezoelectric ceramics |
| CN111687544B (en) * | 2020-06-24 | 2022-04-19 | 南京工业职业技术学院 | Laser resistance adjusting method based on precise displacement of piezoelectric ceramics |
| CN116222713A (en) * | 2023-03-21 | 2023-06-06 | 深圳艾依灵科技有限公司 | Sanitation truck weighing sensor and control method thereof |
| CN116222713B (en) * | 2023-03-21 | 2023-09-01 | 深圳艾依灵科技有限公司 | Sanitation truck weighing sensor and control method thereof |
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Application publication date: 20120516 |