CN112034790A - Automatic numerical control machine tool machining system of measurement - Google Patents
Automatic numerical control machine tool machining system of measurement Download PDFInfo
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- CN112034790A CN112034790A CN202010904695.1A CN202010904695A CN112034790A CN 112034790 A CN112034790 A CN 112034790A CN 202010904695 A CN202010904695 A CN 202010904695A CN 112034790 A CN112034790 A CN 112034790A
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- machine tool
- control system
- circuit control
- computer software
- tool machining
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/41—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by interpolation, e.g. the computation of intermediate points between programmed end points to define the path to be followed and the rate of travel along that path
- G05B19/4103—Digital interpolation
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/34—Director, elements to supervisory
- G05B2219/34085—Software interpolator
Abstract
The invention belongs to the field of numerical control machine tool machining, and particularly relates to an automatic measurement numerical control machine tool machining system, which comprises upper computer software, a circuit control system, a servo driver and a servo motor, and is characterized in that: the upper computer software is connected with the circuit control system, the circuit control system is connected with the servo driver, the servo driver drives the motor to move, real data during machining are obtained through the upper computer software, and the automatic measurement numerical control machine tool machining system can accurately simulate the precision of machined elements, adjust system parameters to be optimal under the condition that actual machining is not needed, and save labor and material costs of enterprises.
Description
Technical Field
The invention belongs to the field of numerical control machine tool machining, and particularly relates to an automatic-measurement numerical control machine tool machining system.
Background
With the arrival of the digital era, the automation in the production and processing field is more and more popularized, and at present, a control system of a numerical control machine tool is composed of upper computer software, a motion control card, a servo driver, a motor and various sensors. Many parameters of the control system directly affect the effect of the machining, in particular the servo drives, such as inertia, stiffness, speed loop integration time, gain, electronic gear ratio. These parameters directly affect the machining accuracy, so before formal machining, the simulation function of the software of the upper computer is used: the simulation processing tool bit is not down, and other all axles are according to predetermined machining route, and unsettled run once on the lathe to whether can observe the motion effect of each motion axle of lathe is unanimous with the figure of waiting to process, prevent that parameter setting mistake from leading to mechanical damage, some unexpected circumstances such as processing error. In the existing simulation processing system, whether a processing path is correct or not can be only roughly observed by naked eyes, and the accuracy of a real motion track cannot be obtained. However, in most of scenes, the requirement on the machining accuracy of the numerical control machining product is high, so that although the machining process can be simulated, no method is available for simulating the actual machining accuracy, and therefore in the actual machine tool debugging, a large amount of trial machining debugging is needed to adjust various parameters of the system, and a more ideal machining effect can be achieved. Thus, a great deal of labor and material costs are consumed in the actual product processing.
Disclosure of Invention
The invention aims to provide an automatic-measurement numerical control machine tool machining system, which can accurately simulate the precision of a machined element, adjust system parameters to be optimal under the condition of not needing actual machining, and save the labor and material cost of enterprises.
In order to achieve the above purpose, the invention adopts the technical scheme that: the utility model provides an automatic numerical control machine tool machining system of measurement, includes host computer software, circuit control system, servo driver, servo motor, its characterized in that: the upper computer software is connected with the circuit control system, the circuit control system is connected with the servo driver, the servo driver drives the motor to move, and real data during processing are obtained through the upper computer software.
Furthermore, the servo motor feeds back the actual movement position during movement to the circuit control system through the encoder.
Further, the circuit control system stores the sampling numerical value fed back by the servo motor through FLASH.
Further, the pulse number transmitted to the circuit control system by the upper computer software is the pulse number calculated by adopting an interpolation algorithm.
Furthermore, the sampling value stored in the FLASH is twice of the servo driving action frequency during heavy rain processing.
Furthermore, the size error of the processing element is obtained by comparing the processed frame number data obtained by the upper computer software with the theoretical value of the interpolation algorithm.
The invention has the technical effects that:
1. during processing, the processing error in actual processing can be accurately calculated, so that unnecessary material waste is reduced;
2. during processing, all details of each processing can be visually seen, and problems of interpolation algorithms and control parameters can be conveniently checked;
3. the system is started in the real machining process, and provides great help for subsequent machine tool maintenance, prediction and fault diagnosis of manufacturers.
Drawings
FIG. 1 is a block diagram of an electric control system of a conventional numerical control machine tool;
fig. 2 is a block diagram of a numerically controlled machine tool control system used by the system.
Detailed Description
Referring to the attached figures 1-2, an automatic measuring numerical control machine tool processing system comprises upper computer software, a circuit control system, a servo driver and a servo motor, and is characterized in that: the upper computer software is connected with the circuit control system, the circuit control system is connected with the servo driver, the servo driver drives the motor to move, and real data during processing are obtained through the upper computer software.
Preferably, the servo motor feeds back the actual movement position during movement to the circuit control system through an encoder.
Preferably, the circuit control system stores the sampling numerical value fed back by the servo motor through FLASH.
Preferably, the number of pulses transmitted to the circuit control system by the upper computer software is a number of pulses calculated by an interpolation algorithm.
Preferably, the sampling value stored in the FLASH memory is twice the servo driving operation frequency when the FLASH memory is subjected to heavy rain processing.
Preferably, the dimensional error of the machining element is obtained by comparing the machining frame number data obtained by the upper computer software with the theoretical value of the interpolation algorithm.
The control system mainly comprises upper computer software, a circuit control system, a servo driver and a motor. When the processing is started, the upper computer software sends the pulse number calculated by the interpolation algorithm to the circuit control system, the electric control system processes the pulse number and then sends the pulse number to the servo driver, the servo driver drives the servo motor to move, the actual moving position can be fed back to the circuit control system through the encoder when the servo motor moves, the circuit control system can record the value fed back by the encoder at each moment in real time and store the value in the FLASH, namely the real size of the processing element. And after the whole processing is finished, the upper computer reads the data stored in the FLASH, and according to the Nyquist sampling law, the real data of the processing can be completely recovered as long as the sampling frequency is more than twice of the servo driving action frequency during the processing. The upper computer obtains the real data of the processing and compares the real data with the theoretical value of the interpolation algorithm, so that the size error of the processing element can be calculated. The realization is as follows: all servo encoder feedback signals are accessed to the control unit; starting the simulation processing, recording the feedback position of the encoder, and storing the whole processing track in an internal memory of the control unit; after the simulation machining is finished, the upper computer reads the motion track in the memory of the control unit and displays the motion track and the graph calculated by the interpolation algorithm on a screen, so that the machining precision is visually embodied. Therefore, the machining error in actual machining can be accurately calculated in machining, unnecessary material waste is reduced, all details of machining can be visually seen, problems of interpolation algorithms and control parameters are conveniently checked, and meanwhile, the system is used in the real machining process, and great help is provided for subsequent machine tool maintenance, prediction and fault diagnosis of manufacturers.
Claims (6)
1. The utility model provides an automatic numerical control machine tool machining system of measurement, includes host computer software, circuit control system, servo driver, servo motor, its characterized in that: the upper computer software is connected with the circuit control system, the circuit control system is connected with the servo driver, the servo driver drives the motor to move, and real data during processing are obtained through the upper computer software.
2. The automatic measuring numerically controlled machine tool machining system according to claim 1, wherein: the servo motor feeds back the actual movement position during movement to the circuit control system through the encoder.
3. The automatic measuring numerically controlled machine tool machining system according to claim 2, wherein: and the circuit control system stores the sampling numerical value fed back by the servo motor through FLASH.
4. The automatic measuring numerically controlled machine tool machining system according to claim 1, wherein: the pulse number transmitted to the circuit control system by the upper computer software is the pulse number calculated by adopting an interpolation algorithm.
5. The automatic measuring numerically controlled machine tool machining system according to claim 3, wherein: the sampling value stored in the FLASH is twice of the servo driving action frequency during heavy rain processing.
6. The automatic measuring numerically controlled machine tool machining system according to claim 1, wherein: the size error of the processing element is obtained by comparing the processed frame number data obtained by the upper computer software with the theoretical value of the interpolation algorithm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010904695.1A CN112034790A (en) | 2020-09-01 | 2020-09-01 | Automatic numerical control machine tool machining system of measurement |
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| CN202010904695.1A CN112034790A (en) | 2020-09-01 | 2020-09-01 | Automatic numerical control machine tool machining system of measurement |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013311A (en) * | 2007-01-15 | 2007-08-08 | 大连光洋科技工程有限公司 | Bus controller for numerical control system of full digital ring bus |
| CN101086664A (en) * | 2007-07-09 | 2007-12-12 | 上海大学 | Multiple axle movement controller based on MPC5200 and its operation method |
| CN101387879A (en) * | 2007-09-14 | 2009-03-18 | 广州数控设备有限公司 | Numerical control equipment moving precision test device and test method |
| KR101604840B1 (en) * | 2015-11-17 | 2016-03-21 | (주)삼동 | The manufacturing apparatus and method of CTC using multiple linear actuator |
| CN108663993A (en) * | 2018-06-14 | 2018-10-16 | 商飞信息科技（上海）有限公司 | A kind of multiple-axis servo control system based on real-time controller |
| CN110543146A (en) * | 2019-10-30 | 2019-12-06 | 苏州市伯太数字科技有限公司 | circular machining method based on edge calculation and numerical control machine tool machining system |
-
2020
- 2020-09-01 CN CN202010904695.1A patent/CN112034790A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013311A (en) * | 2007-01-15 | 2007-08-08 | 大连光洋科技工程有限公司 | Bus controller for numerical control system of full digital ring bus |
| CN101086664A (en) * | 2007-07-09 | 2007-12-12 | 上海大学 | Multiple axle movement controller based on MPC5200 and its operation method |
| CN101387879A (en) * | 2007-09-14 | 2009-03-18 | 广州数控设备有限公司 | Numerical control equipment moving precision test device and test method |
| KR101604840B1 (en) * | 2015-11-17 | 2016-03-21 | (주)삼동 | The manufacturing apparatus and method of CTC using multiple linear actuator |
| CN108663993A (en) * | 2018-06-14 | 2018-10-16 | 商飞信息科技（上海）有限公司 | A kind of multiple-axis servo control system based on real-time controller |
| CN110543146A (en) * | 2019-10-30 | 2019-12-06 | 苏州市伯太数字科技有限公司 | circular machining method based on edge calculation and numerical control machine tool machining system |
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Application publication date: 20201204 |