CN102402203A - System and method for controlling numerical control machine - Google Patents
System and method for controlling numerical control machine Download PDFInfo
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- CN102402203A CN102402203A CN2011103579987A CN201110357998A CN102402203A CN 102402203 A CN102402203 A CN 102402203A CN 2011103579987 A CN2011103579987 A CN 2011103579987A CN 201110357998 A CN201110357998 A CN 201110357998A CN 102402203 A CN102402203 A CN 102402203A
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Abstract
The invention relates to a system and a method for controlling numerical control machine. The system comprises a CNC control module, an Ethernet communication module connected with the CNC control module and a PLC module connected with the Ethernet communication module; and the CNC control module sends a control command to the PLC module through the Ethernet communication module, and monitors the PLC module to execute the control command in real time through the Ethernet communication module. A high integration single chip is used to design the PLC module which runs independently for the CNC system, and is connected with a real-time Ethernet through a hardware interface; the hardware is simple in structure, and the software is designed independently; stable and reliable PLC module can be developed in a short time; meanwhile, the CNC system host can use very few system resources, the PLC can be managed and controlled in real time to realize the PLC function so as to better assist motion control of the CNC system, and the PLC function modularization design of the CNC system is realized.
Description
Technical field
The present invention relates to a kind of numerically-controlled machine control system and control method.
Background technology
In the CNC system, its main shaft rotation and feed shaft move respectively and are driven by spindle motor and feeding motor, and select cutter, the tool changing etc. of the degree of tightness of synkinesia such as spindle chuck, tool magazine are all controlled completion by the PLC controller.
In the traditional CNC system, its PLC function has two kinds of implementations, and a kind of mode is soft PLC mode, and the PLC function is directly realized on the CNC main frame, and on the HPI plate, the PLC function is carried out by host-processor with the design of the hardware interface of PLC.A kind of in addition mode is independent PLC mode, disposes the PLC controller of a platform independent, and the CNC system host is realized the PLC function through communication interface management PLC controller.
In CNC system, owing to adopted real-time ethernet technology, the requirement of the adaptation CNC system that traditional PLC function implementation can not be appropriate based on real-time ethernet.Inventor of the present invention is through discovering; If adopt soft PLC mode; The PLC function executing on the CNC main frame, high real-time that just can not the communication of good use real-time ethernet can, realize the modular design of CNC system; The complexity that reduces the CNC host software is to improve system stability, and the burden that reduces the CNC host-processor is to improve the performance of CNC system.If adopt the mode of independent general PLC, because the price of PLC is also relatively more expensive, key is that PLC does not have the real-time ethernet interface, and existing communication interface efficient is low, data protocol is open not enough, has limited the lifting of CNC system control performance.
Summary of the invention
The CNC system can not use the technological problem of real-time ethernet in the prior art in order to solve, and the embodiment of the invention provides a kind of numerically-controlled machine control system and control method.
A kind of numerically-controlled machine control system; Comprise the CNC control module; Ethernet communication module that is connected with said CNC control module and the PLC module that is connected with said ethernet communication module; Said CNC control module, and is monitored the PLC module in real time through said ethernet communication module and is carried out control command to said PLC module transmitting control commands through said ethernet communication module.
A kind of numerically-controlled machine control method,
The CNC control module is passed through the ethernet communication module to PLC module transmitting control commands;
The PLC module is stored in control command in the storer;
The CNC control module is monitored the PLC module in real time through the ethernet communication module and is carried out control command.
The embodiment of the invention proposes a kind of numerically-controlled machine control system and control method; Adopting the high integration single-chip microcomputer is the PLC module of CNC system design independent operating, and is connected through hardware interface with real-time ethernet, and hardware configuration is simple; The software independent design; Can develop reliable and stable PLC module within a short period of time, make the CNC system host can use system resource seldom simultaneously, management and control PLC realizes the PLC function in real time; The motion control of better auxiliary CNC system, and realized that the PLC function modoularization of CNC system designs.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.Wherein
Fig. 1 has shown numerically-controlled machine control system structural representation among the embodiment one;
Fig. 2 has shown numerically-controlled machine control system structural representation among the embodiment one;
Fig. 3 has shown numerically-controlled machine control system structural representation among the embodiment two;
Fig. 4 has shown numerically-controlled machine control method process flow diagram among the embodiment three.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
The present invention provides a kind of numerically-controlled machine control system; It is characterized in that: comprise CNC control module 1, the ethernet communication module 2 that is connected with said CNC control module 1 and the PLC module 4 that is connected with said ethernet communication module 3; Said CNC control module 1 through said ethernet communication module 2 to said PLC module 3 transmitting control commands, and through said ethernet communication module 2 in real time monitoring PLC modules 3 carry out control commands.
Said CNC control module 1 is connected with ethernet communication module 2 through RJ45 type Ethernet interface.
Said ethernet communication module 2 comprises Ethernet protocol controller 5 and profile memory; Said Ethernet protocol controller adopts FPGA; Deposit Ethernet POWERLINK configuration file and EtherCAT configuration file in the said profile memory, said Ethernet protocol controller selects to write Ethernet POWERLINK configuration file or EtherCAT configuration file.
Said ethernet communication module also comprises configuration file selection module; Said configuration file selects the module can need be by different protocol configuration file then through software or hardware mode; During mode through software; With different configuration file stores different memory address in storer, configuration file selects module to obtain different configuration files through visiting corresponding address.
Said configuration file selects module to comprise configuration file commutation circuit 6; Said profile memory comprises Ethernet POWERLINK profile memory 7 and EtherCAT profile memory 8, and said Ethernet protocol controller selects to write Ethernet POWERLINK configuration file or EtherCAT configuration file through configuration file commutation circuit 6.
Real-time performance reaches digital control system application real-time and opening ethernet technology at present has two kinds, and a kind of is the EtherCAT technology, and another kind is an Ethernet POWERLINK technology, and the real-time performance of these two kinds of technology can both reach 100us.
It is all very high that real-time ethernet EtherCAT technology and Ethernet POWERLINK technology are carried out performance.But two kinds of technology all do not obtain the advantage of bigger widespread use, and China does not confirm the real-time ethernet standard yet.So, select for use a kind of real-time ethernet technical design communication module that the bigger market risk is all arranged separately, possibly, the market in future be on a sticky wicket in striving.Therefore the real-time ethernet communication module that just needs compatible EtherCAT technology and Ethernet POWERLINK technology is to support two kinds of real-time ethernet technical schemes.
Technical scheme of the present invention is utilized the flexible configuration characteristic of interface of semi-custom characteristic and the FPGA of FPGA; The peripheral configuration device design of two kinds of technical schemes is connected on the FPGA; Peripheral configuration selection of the same type can be supported the chip of two kinds of application needs; Design two FPGA profile memory in addition, deposit the configuration file of Ethernet POWERLINK technical scheme and the configuration file of EtherCAT technical scheme respectively, and the design alternative switch is realized the selection of technical scheme.
In elected during Ethernet POWERLINK profile memory; FPGA just is configured to peripheral hardware the use-pattern of Ethernet POWERLINK scheme; FPGA internal operation Ethernet POWERLINK technical protocol, this time, this module was exactly the ethernet communication module of Ethernet POWERLINK technology.During the EtherCAT profile memory, FPGA just is configured to peripheral hardware the use-pattern of EtherCAT scheme in elected, the technical protocol of FPGA internal operation EtherCAT, and at this moment this module is exactly the technological real-time ethernet communication module of EtherCAT.The implementation method of the real-time ethernet communication module of compatible EtherCAT technology of the present invention and EthernetPOWERLINK technology can insert EtherCAT technology and the technological real-time ethernet network of Ethernet POWERLINK easily.
Said PLC module comprises PLC controller 4 and storer; Said PLC controller 4 has been selected a Cortes-M3 kernel 32BIT single-chip microcomputer STM32F101VD for use; The FLASH of this single-chip microcomputer internal configurations 384K byte is as the SCM program space; And the SRAM of configuration 48K byte is as data space, and disposes a plurality of SPI interfaces, IIC interface, UART interface and surpass 48 IO interface, and the IO interface adopts light-coupled isolation acquired signal and output signal.Adopt this single-chip microcomputer to be aided with the EEROM of IIC and the hardware interface that corresponding interface circuits realizes PLC.Real time ethernet protocol controller 5 adopts SPI Slave agreement to be connected with single-chip microcomputer.
Embodiment of the invention working method is passed through the ethernet communication module to PLC module transmitting control commands for adopting the CNC control module; The PLC module is stored in control command in the storer, and the CNC control module is monitored the PLC module in real time through the ethernet communication module and carried out control command.
The PLC modular design of real-time ethernet interface hardware, adopt the high integration single-chip microcomputer be the CNC system design the PLC module of independent operating, its hardware configuration is simple, the software independent design can be developed reliable and stable PLC module within a short period of time.
The PLC modular design of real-time ethernet interface hardware the real-time ethernet interface; Make the CNC system host can use system resource seldom; Management and control PLC realizes the PLC function in real time, the better motion control of auxiliary CNC system, and realized that the PLC function modoularization of CNC system designs.
Embodiment two
A kind of numerically-controlled machine control system; Comprise the CNC control module; Ethernet communication module that is connected with said CNC control module and the PLC module that is connected with said ethernet communication module; Said CNC control module, and is monitored the PLC module in real time through said ethernet communication module and is carried out control command to said PLC module transmitting control commands through said ethernet communication module.
Said ethernet communication module connects spindle motor and feeding motor, and said CNC control module is through said spindle motor of said ethernet communication module controls and feeding motor.
Said ethernet communication module interconnects through Ethernet interface.
The embodiment of the invention two is in the CNC system based on real-time ethernet; Actuating equipments such as spindle motor, feeding motor and PLC are all inserted the real-time ethernet network of CNC system, realize that the CNC system is through actuating equipments such as real-time ethernet network control spindle motor, feeding motor, PLC.
Embodiment three
The present invention provides a kind of numerically-controlled machine control method:
The CNC control module is passed through the ethernet communication module to PLC module transmitting control commands;
The PLC module is stored in control command in the storer;
The CNC control module is monitored the PLC module in real time through the ethernet communication module and is carried out control command.
Said CNC control module also comprises before PLC module transmitting control commands step through the ethernet communication module: the Ethernet protocol controller in the ethernet communication module is selected Ethernet POWERLINK configuration file or EtherCAT configuration file.
Ethernet protocol controller in the said ethernet communication module selects Ethernet POWERLINK configuration file or EtherCAT configuration file step also to comprise: the control configuration file selects module to make the Ethernet protocol controller select to connect Ethernet POWERLINK profile memory or EtherCAT profile memory, and said Ethernet POWERLINK configuration file or EtherCAT configuration file are written in the Ethernet protocol controller.
Said CNC control module also comprises to PLC module transmitting control commands step through the ethernet communication module: said control command is the PLC run time version that said CNC control module compiles through the ladder diagram mode.
A kind of numerically-controlled machine control method that the embodiment of the invention three proposes; Adopting the high integration single-chip microcomputer is the PLC module of CNC system design independent operating, and is connected through hardware interface with real-time ethernet, and hardware configuration is simple; The software independent design; Can develop reliable and stable PLC module within a short period of time, make the CNC system host can use system resource seldom simultaneously, management and control PLC realizes the PLC function in real time; The motion control of better auxiliary CNC system, and realized that the PLC function modoularization of CNC system designs.
What deserves to be mentioned is that among the above embodiment, various structure characteristic (for example above-mentioned multiple connected mode) can make up use each other, is not limited to shown in each accompanying drawing.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for those of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. numerically-controlled machine control system; It is characterized in that: comprise the CNC control module; Ethernet communication module that is connected with said CNC control module and the PLC module that is connected with said ethernet communication module; Said CNC control module, and is monitored the PLC module in real time through said ethernet communication module and is carried out control command to said PLC module transmitting control commands through said ethernet communication module.
2. numerically-controlled machine control system according to claim 1; It is characterized in that: said ethernet communication module comprises Ethernet protocol controller and profile memory; Deposit Ethernet POWERLINK configuration file and EtherCAT configuration file in the said profile memory, said Ethernet protocol controller selects to write Ethernet POWERLINK configuration file or EtherCAT configuration file.
3. numerically-controlled machine control system according to claim 2; It is characterized in that: said ethernet communication module also comprises configuration file selection module; Said profile memory comprises EthernetPOWERLINK profile memory and EtherCAT profile memory, and said Ethernet protocol controller selects module to select to write Ethernet POWERLINK configuration file or EtherCAT configuration file through configuration file.
4. numerically-controlled machine control system according to claim 2 is characterized in that: said PLC module comprises Cortes-M3 single-chip microcomputer and storer, and is connected with the Ethernet protocol controller through the SPI interface.
5. numerically-controlled machine control system according to claim 1 is characterized in that: said ethernet communication module connects spindle motor and feeding motor, and said CNC control module is through said spindle motor of said ethernet communication module controls and feeding motor.
6. numerically-controlled machine control system according to claim 5 is characterized in that: said ethernet communication module interconnects through Ethernet interface.
7. numerically-controlled machine control method is characterized in that:
The CNC control module is passed through the ethernet communication module to PLC module transmitting control commands;
The PLC module is stored in control command in the storer;
The CNC control module is monitored the PLC module in real time through the ethernet communication module and is carried out control command.
8. numerically-controlled machine control method according to claim 7 is characterized in that: said CNC control module also comprises before PLC module transmitting control commands step through the ethernet communication module: the Ethernet protocol controller in the ethernet communication module is selected Ethernet POWERLINK configuration file or EtherCAT configuration file.
9. numerically-controlled machine control method according to claim 8; It is characterized in that: the Ethernet protocol controller in the said ethernet communication module selects Ethernet POWERLINK configuration file or EtherCAT configuration file step also to comprise: the control configuration file selects module to make the Ethernet protocol controller select to connect Ethernet POWERLINK profile memory or EtherCAT profile memory, and said Ethernet POWERLINK configuration file or E therCAT configuration file are written in the Ethernet protocol controller.
10. numerically-controlled machine control method according to claim 7 is characterized in that: said control command is the PLC run time version that said CNC control module compiles through the ladder diagram mode.
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| CN201110357998.7A CN102402203B (en) | 2011-11-14 | 2011-11-14 | System and method for controlling numerical control machine |
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| CN201110357998.7A CN102402203B (en) | 2011-11-14 | 2011-11-14 | System and method for controlling numerical control machine |
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| CN106181387A (en) * | 2016-08-17 | 2016-12-07 | 上海优尼斯工业设备销售有限公司 | A kind of gantry moving-beam type Horizontal type milling composite machining center |
| CN106271627A (en) * | 2016-08-17 | 2017-01-04 | 沈阳机床股份有限公司 | A kind of vertical turn-milling complex machining center of gantry moving-beam type |
| CN106312556A (en) * | 2016-08-17 | 2017-01-11 | 沈阳机床股份有限公司 | Moving beam type inverted turn-milling compound machining center based on gantry |
| CN111061669A (en) * | 2019-10-23 | 2020-04-24 | 珠海格力智能装备有限公司 | Station monitoring method, computer readable storage medium and system |
| CN114531347A (en) * | 2020-11-23 | 2022-05-24 | 沈阳新松机器人自动化股份有限公司 | Real-time communication method based on controller |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149900A (en) * | 2013-02-04 | 2013-06-12 | 深圳市大族激光科技股份有限公司 | Communication method and communication device between power amplifier (PA) numerical control system and external device |
| CN103433805A (en) * | 2013-08-23 | 2013-12-11 | 广州数控设备有限公司 | Circular degree error measurement device and method based on industrial Ethernet bus |
| CN103433805B (en) * | 2013-08-23 | 2015-11-18 | 广州数控设备有限公司 | Based on the roundness error measurement device and method of EPA bus |
| CN106181387A (en) * | 2016-08-17 | 2016-12-07 | 上海优尼斯工业设备销售有限公司 | A kind of gantry moving-beam type Horizontal type milling composite machining center |
| CN106271627A (en) * | 2016-08-17 | 2017-01-04 | 沈阳机床股份有限公司 | A kind of vertical turn-milling complex machining center of gantry moving-beam type |
| CN106312556A (en) * | 2016-08-17 | 2017-01-11 | 沈阳机床股份有限公司 | Moving beam type inverted turn-milling compound machining center based on gantry |
| CN111061669A (en) * | 2019-10-23 | 2020-04-24 | 珠海格力智能装备有限公司 | Station monitoring method, computer readable storage medium and system |
| CN114531347A (en) * | 2020-11-23 | 2022-05-24 | 沈阳新松机器人自动化股份有限公司 | Real-time communication method based on controller |
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