CN112346416B - Laser device based on EtherCAT bus and control device and system thereof - Google Patents
Laser device based on EtherCAT bus and control device and system thereof Download PDFInfo
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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
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41815—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the cooperation between machine tools, manipulators and conveyor or other workpiece supply system, workcell
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The application is suitable for the laser instrument field, provides a laser instrument controlling means, system based on etherCAT bus, based on the laser instrument of etherCAT bus, based on the processing control system of etherCAT bus. The laser control device comprises a microcontroller integrating functions of an EtherCAT slave station controller, a first operational amplifier circuit, an optical coupling isolation output circuit and a pulse width modulation circuit, wherein the first operational amplifier circuit, the optical coupling isolation output circuit and the pulse width modulation circuit are respectively connected with the microcontroller. The method and the device have the advantages of saving cost of the laser, being high in signal precision, having the synchronism of the EtherCAT bus technology, being strong in anti-interference performance, strong in stability, high in adaptation compatibility and simple in user operation.
Description
Technical Field
The application belongs to the laser field, especially relates to a laser instrument controlling means based on etherCAT bus, based on the laser instrument of etherCAT bus, based on the processing control system of etherCAT bus.
Background
The laser control system has an internal control mode and an external control mode. The control instruction and state of the laser, fault diagnosis information are transmitted through the bus under the internal control mode, and the common industrial field bus of the laser comprises: RS-232 bus, RS-485 bus, Ethernet bus, etc. The RS-232 bus adopts a single-end unbalanced transmission mode, has poor common mode rejection capability and high interface level and is easy to damage a circuit chip. The RS-485 bus adopts the combination of a balanced driver and a differential receiver, the anti-noise interference performance is good, but the maximum communication rate is 10Mbps, and the communication rate is reduced along with the increase of the number of the slaves and the transmission distance due to the polling communication mode, so that 32 nodes are generally supported maximally. The Ethernet bus has the communication rate of 100Mbps, allows different physical media to form different topological structures, but the Ethernet frame is a free peer-to-peer communication network, has no concept of a master station and a slave station, has low utilization rate of data packets and poor real-time performance, and cannot meet the application occasions of high-precision and high-performance lasers.
The automatic laser cutting system combines a laser and motion control together, the light-emitting control, fault state feedback and motion control of the laser require interaction of a large amount of data, the requirements on synchronism and real-time performance are high, a flexible topological structure is required, and a bus transmission scheme in the prior art cannot meet performance requirements. With the application of laser cutting and welding technology, the market and customers put forward higher requirements on the processing technology, lasers of many high-power factories do not have the function of high-speed pulse signal output, only support a continuous pulse light emitting mode, and the PWM waveform control of the lasers is very important in order to improve the processing efficiency, precision and quality.
In summary, the prior art bus transmission scheme has the following disadvantages:
1. the cost is high. Most customers use external devices to generate analog signals and digital signals, such as PWM, power, enable, etc., requiring the manufacture of a large number of signal harnesses and the purchase of multiple gateway conversion modules and wave card control boards, which inevitably increases the investment in equipment cost.
2. The suitability is poor. If a customer purchases machine tool cutting systems, lasers or cutting heads of different manufacturers, the laser control system in the prior art has the problem that instructions of all the manufacturers are incompatible, and the whole debugging is troublesome.
3. The operation is complicated. In the prior art, a laser transmitted through a bus needs to be accessed to an EtherCAT industrial field bus, a gateway conversion module is needed, a general high-power laser system does not have a pulse output instruction, a waveform setting card needs to be purchased independently to realize signal switching, upper computer software of a plurality of manufacturers is needed to carry out combined control, and the compatibility is not strong.
Disclosure of Invention
The application aims to provide a laser control device and system based on an EtherCAT bus, a laser based on the EtherCAT bus and a processing control system based on the EtherCAT bus, and aims to solve the problems of high cost, poor adaptability and complex operation of a bus transmission scheme in the prior art.
In a first aspect, the application provides a laser control device based on an EtherCAT bus, the laser control device comprises a microcontroller integrating the functions of an EtherCAT slave station controller, a first operational amplifier circuit, an optical coupling isolation output circuit and a pulse width modulation circuit, the first operational amplifier circuit, the optical coupling isolation output circuit and the pulse width modulation circuit are respectively connected with the microcontroller, the laser control device further comprises at least one PHY module connected with the EtherCAT master station, the PHY module is integrated in the microcontroller or connected with the microcontroller, the laser control device further comprises one or any combination of a first driving module, a second driving module and a third driving module, the first driving module is connected with an upper computer, the second driving module is connected with an ethernet master station, and the third driving module is connected with a waveform editing host; the laser control device also comprises an analog quantity output port connected with the output end of the first operational amplifier circuit, an external control signal output port connected with the output end of the optical coupling isolation output circuit, and a PWM output port connected with the output end of the pulse width modulation circuit; the analog output port, the external control signal output port and the PWM output port are respectively connected with a main control board of the laser main body to finish controlling the light emission of the laser.
In a second aspect, the application provides a laser control system based on an EtherCAT bus, where the laser control system includes a laser control device based on the EtherCAT bus and an EtherCAT master station, and the laser control system further includes one or any combination of an upper computer, an ethernet master station, and a waveform editing host.
In a third aspect, the application provides a laser based on an EtherCAT bus, which is characterized in that the laser based on the EtherCAT bus comprises a laser main body and a laser control device based on the EtherCAT bus, wherein the laser main body comprises a main control board, and an analog quantity output port, an external control signal output port and a PWM output port of the laser control device based on the EtherCAT bus are respectively connected with the main control board of the laser main body to complete control of light output of the laser based on the EtherCAT bus.
In a fourth aspect, the present application provides an EtherCAT bus-based machining control system, which includes an EtherCAT bus-based laser control system as described above, a machining device connected to an EtherCAT master station via an EtherCAT bus and controlled by the EtherCAT master station to move, an EtherCAT bus-based laser as described above connected to the machining device via the EtherCAT bus, and an EtherCAT bus-based machining head connected to the EtherCAT bus-based laser via the EtherCAT bus.
In the application, the laser control device based on the EtherCAT bus comprises a microcontroller integrating the functions of an EtherCAT slave station controller, and a first operational amplifier circuit, an optical coupling isolation output circuit and a pulse width modulation circuit which are respectively connected with the microcontroller, and further comprises at least one PHY module connected with an EtherCAT master station, and the laser control device further comprises one or any combination of a first driving module, a second driving module and a third driving module which are respectively connected with the microcontroller, wherein the first driving module is connected with an upper computer, the second driving module is connected with an ethernet master station, and the third driving module is connected with a waveform editing host; the laser control device also comprises an analog quantity output port connected with the output end of the first operational amplifier circuit, an external control signal output port connected with the output end of the optical coupling isolation output circuit, and a PWM output port connected with the output end of the pulse width modulation circuit; the analog output port, the external control signal output port and the PWM output port are respectively connected with a main control board of the laser main body to control light emission of the laser. Therefore, a special slave station chip does not need to be selected, and a control signal of light emission of the laser can be generated by a laser control device based on an EtherCAT bus, so that the cost and expense of the laser are saved; the EtherCAT bus has the real-time property and the synchronism of communication, a laser control device based on the EtherCAT bus can accurately generate signals, the signal precision is high, the anti-interference performance is strong, and the stability is strong; the EtherCAT bus is adopted, so that the adaptation compatibility is high, and the laser can be controlled more easily; the laser control system based on the EtherCAT bus integrates the functions of cutting and welding waveform configuration, light emitting control, state feedback, fault diagnosis, parameter storage and process processing, does not need to operate other soft cooperative configurations, and is simple in user operation. Laser instrument controlling means based on etherCAT bus can cooperate cutting off machine and welding robot to carry out cutting, welding operation, satisfies the field application of customer under the high accuracy requirement.
Drawings
Fig. 1 is a schematic diagram of a laser control system based on an EtherCAT bus according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a process control system based on an EtherCAT bus according to an embodiment of the present application.
Detailed Description
In order to make the purpose, technical solution and beneficial effects of the present application more clear and more obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.
Referring to fig. 1, a laser control system based on an EtherCAT bus according to an embodiment of the present application includes a laser control device 11 based on the EtherCAT bus and an EtherCAT master station 12, the laser control system also comprises one or any combination of an upper computer 13, a waveform editing host 14 and an Ethernet master station 17, the laser control device 11 based on the EtherCAT bus comprises a microcontroller 111 integrating an EtherCAT slave station controller function, an ECAT module 1111, a first UART module 1113, a second UART module 1137, a first SPI module 1114, a second SPI module 1142, a storage module 1115 and an RTC module 1116 are integrated in the microcontroller 111 integrating the EtherCAT slave station controller function, and the laser control device 11 based on the EtherCAT bus further comprises at least one PHY module 1118 (two PHY modules are shown in fig. 1), wherein the PHY module 1118 is integrated in the microcontroller 111 or is connected with the ECAT module 1111 in the microcontroller 111; the laser control device 11 further includes one or any combination of a first driver module 1139 connected to the first UART module 1113, a second driver module 1140 connected to the first SPI module 1114, and a third driver module 1141 connected to the second SPI module 1142, the PHY module 1118 is connected to the EtherCAT master station 12, the first driver module 1139 is connected to the upper computer 13, and is configured to control the emission of light from the laser, display status and fault information, and configure and store parameters of the laser, the second driver module 1140 is connected to the ethernet master station 17, and is configured to control the emission of light from the laser, display status and fault information, and configure and store parameters of the laser, and the third driver module 1141 is connected to the waveform editing host 14, and is configured to edit waveforms; the integrated EtherCAT slave station controller function microcontroller 111 is internally integrated with a DAC module 1122, a second GPIO output module 1125 and a PWM module 1126, the EtherCAT bus-based laser control device 11 further comprises a first operational amplifier circuit 1127 connected with the output end of the DAC module 1122, an analog quantity output port 1128 connected with the output end of the first operational amplifier circuit 1127, an optical coupling isolation output circuit 1129 connected with the output end of the second GPIO output module 1125, an external control signal output port 1130 connected with the output end of the optical coupling isolation output circuit 1129, a pulse width modulation circuit 1135 connected with the output end of the PWM module 1126 and a PWM output port 1136 connected with the output end of the pulse width modulation circuit 1135; the analog output port 1128, the external control signal output port 1130, and the PWM output port 1136 are respectively connected to the main control board 16 of the laser main body, so as to control the light output of the laser.
The first UART module 1113 is used for controlling the laser to emit light and displaying the state of the laser, detecting the fault and alarm information of the laser, and configuring the light emission and encryption information of the laser.
The storage module 1115 is configured to store device description files configured by the EtherCAT slave stations adapting to different EtherCAT master stations, and is further configured to store waveform data edited by the waveform editing host 14, and the device description files and the waveform data can be actively stored and automatically read when powered on.
The RTC module 1116 is used to display the light-emitting running time of the laser, the date and time at this moment, and the record of the time stamp of the configuration history of the EtherCAT master station or the upper computer software, and may further include setting the encryption expiration time of the laser, and the like.
In an embodiment of the present application, in order to facilitate user operations, the EtherCAT bus-based laser control system may further include a visualization interface master station (for example, a mobile phone, a tablet computer, a desktop computer, or the like) connected to the EtherCAT master station 12 through a router.
In an embodiment of the present application, the microcontroller 111 integrating the slave station controller function of the EtherCAT may further integrate a first GPIO output module 1112 therein, and the laser control device 11 based on the EtherCAT bus may further include an indicator 1119 connected to an output end of the first GPIO output module 1112. The indicator lights 1119 may include lights indicating the operating status of the EtherCAT bus-based laser control device (including status lights indicating normal operation and status lights indicating an error in operation) and status lights indicating that the microcontroller 111 of the integrated EtherCAT slave station controller function is operating.
In an embodiment of the present application, the laser control apparatus may further include a driving circuit 1138 connected to the second UART module 1137 of the microcontroller and the main control board of the laser main body, respectively.
In an embodiment of the present application, the first driving module 1139 may be an RS232 driving module, the second driving module 1140 and the third driving module 1141 may be a W5500 driving module, the driving circuit 1138 may be an RS485 driving circuit, and the driving circuit 1138 is configured to feedback the state of the laser.
In an embodiment of the present application, in order to be compatible with a conventional laser without bus communication and adopting an external control mode for control, the laser control system based on the EtherCAT bus according to an embodiment of the present application not only supports bus communication, but also supports a conventional external control mode. The laser control system based on the EtherCAT bus may further include an external control module 15, the microcontroller 111 integrating the EtherCAT slave station controller function may further integrate a first GPIO input module 1117, an ADC module 1123, and a second GPIO input module 1124, the laser control device 11 based on the EtherCAT bus may further include a first optical isolation input circuit 1120 connected to an input end of the first GPIO input module 1117, a waveform data selection input port 1121 connected to an input end of the first optical isolation input circuit 1120, a second operational amplifier circuit 1131 connected to an input end of the ADC module 1123, an analog input port 1132 connected to an input end of the second operational amplifier circuit 1131, a second optical isolation input circuit 1133 connected to an input end of the second GPIO input module 1124, and an external control signal input port 1134 connected to an input end of the second optical isolation input circuit 1133; the waveform data selection input port 1121, the analog input port 1132, and the external control signal input port 1134 are connected to the external control module 15, respectively.
In an embodiment of the present application, the ECAT module 1111 may be connected to the PHY module 1120 through MII interfaces. PHY modules 1120 may each be connected to EtherCAT master station 12 via connectors (e.g., RJ45, etc.).
In an embodiment of the present application, the microcontroller 111 integrating EtherCAT slave station controller functions may be an XMC series microcontroller, such as XMC4300 or XMC 4800.
The EtherCAT bus has the advantages of mature technology, stable communication, high transmission rate, wide prospect and the like, uses a standard Ethernet physical layer and a transmission medium for twinning, and can be used for industrial field-level ultrahigh-speed network communication. The EtherCAT bus is based on the Ethernet protocol for communication, and conforms to the Ethernet international standard. The EtherCAT protocol processing is completely carried out in hardware, and the protocol ASIC can be flexibly configured, so that the working efficiency is greatly improved. The laser control system based on the EtherCAT bus provided by the embodiment of the application adopts IEC 61800-7 (CoE CiA402) CANopen motion control subprotocol. The application layer object dictionary comprises the following components: company name, Logo, ID number, product serial number, version information of software and hardware, PDO (Process Data Object), SDO (Service Data Object), and the like. The PDO comprises the interaction of laser light control, fault diagnosis, state feedback and real-time data synchronized with other slave stations. The SDO includes configuration and storage of PWM light output waveform parameters of the laser.
The working principle of the laser control system based on the EtherCAT bus provided by the embodiment of the application is as follows:
the laser control device based on the EtherCAT bus has the functions of bus communication, external control signal switching and waveform editing and storing. Under the internal control mode, two communication modes of EtherCAT bus communication and Ethernet communication are available. An EtherCAT bus signal issued by an EtherCAT master station is connected with a laser controller based on an EtherCAT bus through a connector (such as RJ45), two PHY modules and an ECAT module of a microcontroller integrating functions of an EtherCAT slave station controller communicate through an MII interface, and the EtherCAT data packet decoding is carried out without the need of external slave station chips and microcontroller interaction data, so that the design of an EtherCAT bus physical layer and a data link layer is completed. Except for EtherCAT bus communication in the internal control mode, the upper computer monitors the laser based on the EtherCAT bus through an Ethernet communication interface or a USB interface, and the microcontroller and the network communication module are in serial communication through the SPI to complete data interaction. An RS232 interface circuit on the laser control device based on the EtherCAT bus is connected with an upper computer through a USB adapter 232. And in the external control mode, a control signal is sent to a laser control device based on an EtherCAT bus through an external control module, the laser control device based on the EtherCAT bus supports an internal control mode, an external control mode and an internal control and external control mixed mode, the laser is electrified to default the external control mode, and the internal control and external control and mixed control mode are switched by an EtherCAT bus instruction. The waveform editing host stores the set parameters and data in a storage module in the microcontroller through installing editing software, and can call the last waveform after the laser is powered off or restarted next time. The RTC module on the laser control device based on the EtherCAT bus records the real-time of the laser control device, the parameter setting action is recorded, and the history can be checked through the upper computer. The laser control device based on the EtherCAT bus and the main control board of the laser main body transmit non-real-time information such as parameter configuration, state fault feedback and the like through Modbus RTU protocol instructions. Switching light, enabling, red light control, power, PWM control, etc. instructions requiring real-time performance are transmitted via analog and digital signals.
An embodiment of the present application further provides a laser based on the EtherCAT bus, the laser based on the EtherCAT bus includes a laser main body and a laser control device based on the EtherCAT bus provided by an embodiment of the present application, the laser main body includes a main control board, an analog output port, an external control signal output port, a driving circuit and a PWM output port of the laser control device based on the EtherCAT bus are respectively connected with the main control board of the laser main body, and the control of the light-emitting of the laser based on the EtherCAT bus is completed.
In this application embodiment, when the laser instrument is multimode laser instrument, the main control board is multimode main control board, the laser instrument main part still includes a plurality of single mode control boards of being connected with the beam combiner respectively, and a plurality of single mode control boards accessible EtherCAT bus are connected with multimode main control board.
An embodiment of the application provides a laser instrument based on EtherCAT bus, and the laser instrument based on EtherCAT bus includes the laser main part and the laser instrument controlling means based on EtherCAT bus that an embodiment of the application provided, the laser instrument is multimode laser, the laser instrument main part still includes a plurality of single mode control boards that are connected with the beam combiner respectively, and analog quantity output port, outer control signal output port and the PWM output port based on the laser instrument controlling means of EtherCAT bus are connected with a plurality of single mode control boards of laser instrument main part respectively, accomplish the control and are based on the light-emitting of the laser instrument of EtherCAT bus.
Referring to fig. 2, the EtherCAT bus-based machining control system according to an embodiment of the present invention includes an EtherCAT bus-based laser control system according to an embodiment of the present invention, a machining device 22 connected to the EtherCAT master station 21 through the EtherCAT bus and controlled by the EtherCAT master station 21 to move, an EtherCAT bus-based laser 23 according to an embodiment of the present invention connected to the machining device 22 through the EtherCAT bus, and an EtherCAT bus-based machining head 24 connected to the EtherCAT bus-based laser 23 through the EtherCAT bus.
In an embodiment of the present application, the EtherCAT bus-based processing control system may further include an EtherCAT bus-based remote input/output control device that is connected to the EtherCAT bus-based laser 23 and the EtherCAT bus-based processing head 24 through the EtherCAT bus, respectively.
In an embodiment of the present application, the EtherCAT bus-based machining control system may further include an EtherCAT bus-based height adjuster connected to the EtherCAT bus-based laser 23 and the EtherCAT bus-based machining head 24 through the EtherCAT bus, respectively.
In an embodiment of the present application, the processing control system based on the EtherCAT bus may further include a remote input/output control device based on the EtherCAT bus connected to the laser 23 based on the EtherCAT bus through the EtherCAT bus, and an altimeter based on the EtherCAT bus connected to the remote input/output control device based on the EtherCAT bus and the processing head 24 based on the EtherCAT bus through the EtherCAT bus.
In an embodiment of the application, the machining device is a cutting machine tool, and the machining head is a cutting head; alternatively, the processing device is a welding robot and the processing head is a welding head.
In an embodiment of the application, the laser control device based on the EtherCAT bus comprises a microcontroller integrating the functions of an EtherCAT slave station controller, a first operational amplifier circuit, an optical coupling isolation output circuit and a pulse width modulation circuit which are respectively connected with the microcontroller, and further comprises at least one PHY module connected with an EtherCAT master station, and the laser control device further comprises one or any combination of a first driving module, a second driving module and a third driving module which are respectively connected with the microcontroller, wherein the first driving module is connected with an upper computer, the second driving module is connected with an ethernet master station, and the third driving module is connected with a waveform editing host computer; the laser control device also comprises an analog quantity output port connected with the output end of the first operational amplifier circuit, an external control signal output port connected with the output end of the optical coupling isolation output circuit, and a PWM output port connected with the output end of the pulse width modulation circuit; the analog output port, the external control signal output port and the PWM output port are respectively connected with a main control board of the laser main body to finish controlling the light emission of the laser. Therefore, the cost is reduced, a special slave chip does not need to be selected, the control signal of the light emitted by the laser can be generated by a laser control device based on the EtherCAT bus, and the cost expense of the laser is saved; the EtherCAT bus has the real-time property and the synchronism of communication, a laser control device based on the EtherCAT bus can accurately generate signals, the signal precision is high, the anti-interference performance is strong, and the stability is strong; the EtherCAT bus is adopted, so that the adaptation compatibility is high, and the laser can be controlled more easily; the laser control system based on the EtherCAT bus integrates the functions of waveform configuration, light emission control, state feedback, fault diagnosis, parameter storage and process processing of cutting and welding, does not need to operate other multiple soft cooperative configurations, and is simple in user operation. Laser instrument controlling means based on etherCAT bus can cooperate cutting off machine and welding robot to carry out cutting, welding operation, satisfies the field application of customer under the high accuracy requirement.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (16)
1. A laser control device based on an EtherCAT bus is characterized by comprising a microcontroller integrating EtherCAT slave station controller functions, a first operational amplifier circuit, an optical coupling isolation output circuit and a pulse width modulation circuit which are respectively connected with the microcontroller, at least one PHY module connected with an EtherCAT master station, wherein the PHY module is integrated in the microcontroller or connected with the microcontroller, EtherCAT bus signals sent by the EtherCAT master station are connected with a laser control device based on the EtherCAT bus through the PHY module, the microcontroller integrating the EtherCAT slave station controller functions decodes the EtherCAT bus signals, the laser control device further comprises one or any combination of a first driving module, a second driving module and a third driving module which are respectively connected with the microcontroller, and the first driving module is connected with an upper computer, the second driving module is connected with the Ethernet master station, and the third driving module is connected with the waveform editing host; the laser control device also comprises an analog quantity output port connected with the output end of the first operational amplifier circuit, an external control signal output port connected with the output end of the optical coupling isolation output circuit, and a PWM output port connected with the output end of the pulse width modulation circuit; the analog output port, the external control signal output port and the PWM output port are respectively connected with a main control board of the laser main body, and a control signal of light output of the laser is generated by a laser control device based on an EtherCAT bus.
2. The laser control apparatus of claim 1, further comprising a driving circuit connected to the microcontroller and the main control board of the laser main body, respectively.
3. The laser control device according to claim 2, wherein an ECAT module, a first UART module, a first SPI module, a second SPI module, a storage module, an RTC module, a DAC module, a second GPIO output module, a PWM module and a second UART module are integrated in the microcontroller of the integrated EtherCAT slave station controller function, the PHY module is connected to the ECAT module, the first driver module is connected to the first UART module, the second driver module is connected to the first SPI module, the third driver module is connected to the second SPI module, the driver circuit is connected to the second UART module, the first operational amplifier circuit is connected to an output terminal of the DAC module, the optical coupling isolation output circuit is connected to an output terminal of the second GPIO output module, and the pulse width modulation circuit is connected to an output terminal of the PWM module.
4. The laser control device of claim 3, wherein the integrated EtherCAT slave station controller function microcontroller is further integrated with a first GPIO output module, and the laser control device based on the EtherCAT bus further comprises an indicator light connected with an output end of the first GPIO output module.
5. The laser control device according to claim 3, wherein the integrated EtherCAT slave station controller function microcontroller further integrates a first GPIO input module, an ADC module and a second GPIO input module, the EtherCAT bus-based laser control device further comprises a first optical coupling isolation input circuit connected with the input end of the first GPIO input module, a waveform data selection input port connected with the input end of the first optical coupling isolation input circuit, a second operational amplifier circuit connected with the input end of the ADC module, an analog input port connected with the input end of the second operational amplifier circuit, a second optical coupling isolation input circuit connected with the input end of the second GPIO input module and an external control signal input port connected with the input end of the second optical coupling isolation input circuit; the waveform data selection input port, the analog quantity input port and the external control signal input port are respectively connected with the external control module.
6. The laser control apparatus of claim 3, wherein the ECAT modules are respectively connected with the PHY modules through MII interfaces.
7. The laser control apparatus of claim 6, wherein the PHY module is connected to an EtherCAT master station via a connector.
8. A laser control system based on an EtherCAT bus, which is characterized by comprising the laser control device based on the EtherCAT bus and the EtherCAT master station as claimed in any one of claims 1 to 4 and 6 to 7, and further comprising one or any combination of an upper computer, an Ethernet master station and a waveform editing host computer.
9. The laser control system of claim 8, wherein the laser control system further comprises an external control module, the integrated EtherCAT further integrates an ADC module, a first GPIO input module and a second GPIO input module from inside the microcontroller with the controller function of the station, and the laser control device based on the EtherCAT bus further comprises a first optical isolation input circuit connected to an input end of the first GPIO input module, a waveform data selection input port connected to an input end of the first optical isolation input circuit, a second operational amplifier circuit connected to an input end of the ADC module, an analog input port connected to an input end of the second operational amplifier circuit, a second optical isolation input circuit connected to an input end of the second GPIO input module, and an external control signal input port connected to an input end of the second optical isolation input circuit; the waveform data selection input port, the analog quantity input port and the external control signal input port are respectively connected with the external control module.
10. The laser based on the EtherCAT bus is characterized by comprising a laser main body and the laser control device based on the EtherCAT bus as claimed in any one of claims 1 to 7, wherein the laser main body comprises a main control board, and an analog quantity output port, an external control signal output port and a PWM output port of the laser control device based on the EtherCAT bus are respectively connected with the main control board of the laser main body to complete control of light emission of the laser based on the EtherCAT bus.
11. The laser of claim 10, wherein when the laser is a multimode laser, the master control board is a multimode master control board, the laser body further comprises a plurality of single mode control boards respectively connected to the beam combiner, the plurality of single mode control boards further connected to the multimode master control board via an EtherCAT bus.
12. An EtherCAT bus-based laser, which comprises a laser main body and the EtherCAT bus-based laser control device as claimed in any one of claims 1 to 7, wherein the laser is a multimode laser, the laser main body further comprises a plurality of single-mode control boards respectively connected with the beam combiner, and the analog quantity output port, the external control signal output port and the PWM output port of the EtherCAT bus-based laser control device are respectively connected with the plurality of single-mode control boards of the laser main body to complete the control of the light output of the EtherCAT bus-based laser.
13. A process control system based on the EtherCAT bus, characterized in that the process control system comprises the laser control system based on the EtherCAT bus as claimed in claim 8 or 9, a processing device connected with the EtherCAT master station through the EtherCAT bus and controlled by the EtherCAT master station to move, the laser based on the EtherCAT bus as claimed in any one of claims 10 to 12 connected with the processing device through the EtherCAT bus, and a processing head based on the EtherCAT bus connected with the laser based on the EtherCAT bus through the EtherCAT bus.
14. The machine control system of claim 13 wherein the EtherCAT bus based machine control system further comprises an EtherCAT bus based remote input/output control device connected to the EtherCAT bus based laser and the EtherCAT bus based machine head via the EtherCAT bus.
15. The process control system according to claim 13, wherein the EtherCAT bus-based process control system further comprises an EtherCAT bus-based height adjuster connected to the EtherCAT bus-based laser and the EtherCAT bus-based process head through the EtherCAT bus, respectively.
16. The machining control system according to claim 13, wherein the machining control system based on the EtherCAT bus further includes a remote input/output control device based on the EtherCAT bus connected to the laser based on the EtherCAT bus through the EtherCAT bus, and an altimeter based on the EtherCAT bus connected to the remote input/output control device based on the EtherCAT bus and the machining head based on the EtherCAT bus through the EtherCAT bus, respectively.
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