CN108563191B - Programmer for medium-frequency inversion resistance welding system and working method thereof - Google Patents
Programmer for medium-frequency inversion resistance welding system and working method thereof Download PDFInfo
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- CN108563191B CN108563191B CN201810289030.7A CN201810289030A CN108563191B CN 108563191 B CN108563191 B CN 108563191B CN 201810289030 A CN201810289030 A CN 201810289030A CN 108563191 B CN108563191 B CN 108563191B
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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
- G05B19/4093—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 part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
- G05B19/40937—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 part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine concerning programming of machining or material parameters, pocket machining
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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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
- G05B2219/32—Operator till task planning
- G05B2219/32161—Object oriented control, programming
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Inverter Devices (AREA)
- Arc Welding Control (AREA)
Abstract
The invention provides a programmer for an intermediate frequency inverter resistance welding system, which comprises a matrix keyboard, a display device, a communication device and a processing device, wherein the matrix keyboard is arranged on the matrix keyboard; the processing device comprises a scanning part, a parameter reading part, a parameter adjusting part and a working mode switching part, wherein the parameter reading part and the parameter adjusting part establish a data communication link with the welding controller through the communication device; when the processing device is in a parameter monitoring mode, the parameter reading part reads all current welding parameters of the welding controller in real time or at a first set frequency through the communication device and displays the current welding parameters through the display device; the parameter adjusting part is used for modifying the welding parameter currently selected in the welding controller according to the input key value. According to the invention, any parameter can be rapidly positioned through the 4*4 matrix keyboard, and the required number is directly input when the parameter is modified, so that the applicability is strong, and the use is convenient; the welding parameters are displayed in real time through the display device, so that the monitoring is convenient; in addition, the MODBUS protocol is adopted, so that the transmission distance is long, and the anti-interference capability is high.
Description
Technical Field
The invention relates to the field of welding, and belongs to a programmer for an intermediate frequency inversion resistance welding system and a working method thereof.
Background
The existing programmer is realized through 9 keys, when searching parameters, the parameters are all found by turning pages up and down one by one, the parameters displayed on the screen at one time are very few, each time the parameters need to be checked, the parameters need to be turned over one by one, and each time the parameters are modified, the parameters need to be adjusted by left and right numbers and then by up and down numbers, so that the programmer is very inconvenient.
Disclosure of Invention
The invention aims to provide a programmer for a medium-frequency inverter resistance welding system and a working method thereof, any parameter is rapidly positioned through a 4*4 matrix keyboard, and a desired number is directly input when the parameter is modified, so that the programmer is high in applicability and convenient to use; the welding parameters are displayed in real time through the display device, so that the monitoring is convenient; in addition, the MODBUS protocol is adopted, so that the transmission distance is long, and the anti-interference capability is high.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a programmer for a medium frequency inverter resistance welding system having a welding controller for controlling welding parameters, the programmer comprising a matrix keyboard, a display device, a communication device, a processing device;
the processing device comprises a scanning part, a parameter reading part, a parameter adjusting part and a working mode switching part, wherein the parameter reading part and the parameter adjusting part establish a data communication link with the welding controller through the communication device;
the display device is electrically connected with the processing device and displays corresponding pictures according to control instructions of the processing device;
the processing device has two modes of operation: the processing device completes the switching of the working modes of the processing device through the working mode switching part;
the processing device responds to the start of the programmer, and the initial working mode is a parameter monitoring mode:
when the processing device is in a parameter monitoring mode, the parameter reading part reads all current welding parameters of the welding controller in real time or at a first set frequency through the communication device and displays the current welding parameters through the display device;
the calling instruction of each welding parameter corresponds to a key value;
the scanning part is electrically connected with the matrix keyboard, is electrically connected with the parameter reading part, is electrically connected with the working mode switching part, and is arranged to read the input key value of the matrix keyboard at a second set frequency, and
the following two conditions are satisfied simultaneously in response to: 1) The working mode of the processing device is a parameter monitoring mode, 2) the input key value of the matrix keyboard is a calling instruction of any welding parameter, the corresponding welding parameter in the parameter reading part is read and displayed by the display device, and a first switching instruction is sent to the working mode switching part;
the working mode switching part responds to the first switching instruction and switches the working mode of the processing device into a parameter adjustment mode;
the parameter adjusting part is electrically connected with the scanning part and the working mode switching part, responds to the working mode of the processing device as a parameter adjusting mode, receives the input key value of the matrix keyboard read by the scanning part in real time or at a third set frequency, and modifies the welding parameter currently selected in the welding controller according to the input key value.
In a further embodiment, the parameter adjustment section is further arranged to be simultaneously established in response to two conditions: 1) The working mode of the processing device is a parameter adjustment mode, 2) the input key value read by the scanning part received in a set time threshold range is unchanged, and a second switching instruction is fed back to the working mode switching part;
the operation mode switching section switches the operation mode of the processing device to the parameter monitoring mode in response to the second switching instruction.
In a further embodiment, the set time threshold is 10s.
In a further embodiment, the communication device is a 485 bus circuit, which includes an ADM2483 chip.
In a further embodiment, the parameter reading portion and the parameter adjusting portion use a MODBUS protocol to communicate data with the welding controller.
In a further embodiment, the programmer has a power supply device;
the power supply device comprises a power supply interface, a first voltage reduction module, a second voltage reduction module and a third voltage reduction module, wherein:
the power interface is provided with an input end and an output end, and the input end of the power interface is electrically connected with a control box;
the first voltage reduction module is electrically connected with the output end of the power interface and the display device, and is used for converting the output voltage of the power interface into a first working voltage and outputting the first working voltage to the display device;
the second voltage reduction module is electrically connected with the output end of the first voltage reduction module and the processing device, and is used for converting the first working voltage into a second working voltage and outputting the second working voltage to the processing device;
the third voltage reduction module is electrically connected with the output end of the power interface and the communication device, and is used for converting the output voltage of the power interface into a third working voltage and outputting the third working voltage to the communication device.
In a further embodiment, the output voltage of the power interface is 24V;
the first working voltage is 5V;
the second working voltage is 3.3V;
the third operating voltage is 5V.
In a further embodiment, the matrix keyboard is a 4*4 matrix keyboard.
The invention also relates to a working method of the programmer for the medium-frequency inverter resistance welding system, which comprises the following steps:
step 1, responding to the starting of a programmer, switching the working mode of a processing device into a parameter monitoring mode, and driving a parameter reading part to read all current welding parameters of a welding controller in real time or at a first set frequency through a communication device and displaying the current welding parameters through a display device;
step 2, driving the scanning part to read the input key value of the matrix keyboard at a second set frequency, and
responding to a retrieval instruction of which the input key value of the matrix keyboard is any welding parameter, reading the corresponding welding parameter in the parameter reading part, displaying the welding parameter through the display device, and sending a first switching instruction to the working mode switching part to switch the working mode of the processing device into a parameter adjustment mode;
and 3, responding to the working mode of the processing device as a parameter adjustment mode, receiving the input key value of the matrix keyboard read by the scanning part in real time or at a third set frequency, and driving the parameter adjustment part to modify the welding parameter currently selected in the welding controller according to the input key value.
In a further embodiment, the working method further comprises:
the following two conditions are satisfied simultaneously in response to: 1) The working mode of the processing device is a parameter adjustment mode, 2) the input key value read by the scanning part received in a set time threshold range is unchanged, and the parameter adjustment part is driven to feed back a second switching instruction to the working mode switching part so as to switch the working mode of the processing device into a parameter monitoring mode.
The invention has the beneficial effects that:
1) Any parameter is positioned fast through the 4*4 matrix keyboard, and the required number is directly input when the parameter is modified, so that the applicability is strong, and the use is convenient.
2) The welding parameters are displayed in real time through the display device, so that the monitoring is convenient.
3) And the MODBUS protocol is adopted, so that the transmission distance is long, and the anti-interference capability is strong.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a programmer for an intermediate frequency inverter resistance welding system according to the present invention.
FIG. 2 is a schematic diagram of the workflow of a programmer for an intermediate frequency inverter resistance welding system according to the present invention.
Fig. 3 is a circuit diagram of a matrix keyboard of a programmer for an intermediate frequency inverter resistance welding system of the present invention.
Fig. 4 is a circuit diagram of a display device of a programmer for an intermediate frequency inverter resistance welding system of the present invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1, the present invention provides a programmer for a medium frequency inverter resistance welding system having a welding controller for controlling welding parameters, the programmer comprising a matrix keyboard 10, a display device 30, a communication device 40, and a processing device 20.
The processing device 20 includes a scanning unit 21, a parameter reading unit 22, a parameter adjusting unit 23, and an operation mode switching unit 24, wherein the parameter reading unit 22 and the parameter adjusting unit 23 establish a data communication link with the welding controller through the communication device 40.
Preferably, the communication device 40 is a 485 bus circuit, which includes an ADM2483 chip.
The parameter reading part 22 and the parameter adjusting part 23 adopt MODBUS protocol to carry out data communication with the welding controller, and the MODBUS frame format is simple, compact and standard, is easy to transmit and has long transmission distance.
Furthermore, the communication line can be in a twisted pair form, so that the anti-interference capability is high.
The display device 30 is electrically connected to the processing device 20, and displays a corresponding screen according to a control instruction of the processing device 20.
In the selection of the display device 30, the configuration may be according to the actual requirement of the user, for example, when the welding parameters are more, a larger LCD screen may be selected to display all the welding parameters as much as possible, so as to reduce page turning.
The processing means 20 have two modes of operation: the processing device 20 completes the switching of the own operation mode by the operation mode switching section 24.
These two modes of operation are described in detail below.
A first mode of operation, a parameter monitoring mode.
The processing device 20 is responsive to a programmer activation, and the initial mode of operation is a parameter monitoring mode.
When the processing device 20 is in the parameter monitoring mode, the parameter reading part 22 reads all the current welding parameters of the welding controller in real time or at a first set frequency through the communication device 40, and displays the parameters through the display device 30.
At this time, all welding parameters of the welding controller are fed back on the display device 30 in real time or at a fixed time, and a worker can control the welding quality by observing the display device 30 to monitor the welding controller.
And a second mode of operation, parameter adjustment mode.
First, the present invention is set as follows: the call instruction of each welding parameter corresponds to a key value. It will be appreciated that the number of welding parameters is limited, typically less than the number of key values that a matrix keyboard 10 can enter, especially when a matrix keyboard 10 is selected with a large number of key positions, such as a 4*4 matrix keyboard 10 of fig. 3, etc., which can be tens of thousands of key values, and that welding parameters are at most tens of thousands.
Therefore, the invention corresponds the fetching instruction of each welding parameter to a key value, such as the welding temperature to the key value 001, the welding time to the key value 002, etc.
The scanner 21 is electrically connected to the matrix keyboard 10, the parameter reader 22, the operation mode switch, the scanner 21 is configured to read the input key value of the matrix keyboard 10 at a second set frequency, and
the following two conditions are satisfied simultaneously in response to: 1) The operation mode of the processing device 20 is a parameter monitoring mode, 2) the input key value of the matrix keyboard 10 is a command for retrieving any welding parameter, reads the corresponding welding parameter in the parameter reading portion 22, displays the welding parameter through the display device 30, and sends a first switching command to the operation mode switching portion 24.
The operation mode switching unit 24 switches the operation mode of the processing device 20 to the parameter adjustment mode in response to the first switching instruction.
It should be appreciated that the scanning unit 21 reads the key values of the matrix keyboard 10 independently of the operation mode of the processing device 20, i.e. even if the processing device 20 is in the parameter monitoring mode, the scanning unit 21 is still reading the key values of the matrix keyboard 10 in real time or at regular time and in response to the user's demands.
The parameter adjusting part 23 is electrically connected to the scanning part 21 and the operation mode switching part 24, and the parameter adjusting part 23 receives the input key value of the matrix keyboard 10 read by the scanning part 21 in real time or at a third set frequency in response to the operation mode of the processing device 20 being the parameter adjusting mode, and modifies the welding parameter currently selected in the welding controller according to the input key value.
When the scanner 21 scans a command for retrieving any one of the welding parameters as an input key value of the matrix keyboard 10, it is indicated that the user wants to modify the welding parameters or view the welding parameters.
For the latter, the corresponding welding parameters in the parameter reading portion 22 are read and displayed by the display device 30, for the former, the scanning portion 21 sends a first switching instruction to the operation mode switching portion 24, and the operation mode switching portion 24 switches the operation mode of the processing device 20 to the parameter adjustment mode in response to the first switching instruction.
Also, the parameter adjustment section 23 is further configured to be simultaneously established in response to the following two conditions: 1) The operation mode of the processing device 20 is a parameter adjustment mode, 2) the input key value read by the scanning unit 21 received within a set time threshold is unchanged, and a second switching command is fed back to the operation mode switching unit 24.
The operation mode switching unit 24 switches the operation mode of the processing device 20 to the parameter monitoring mode in response to the second switching instruction.
When there is no numerical update on matrix keyboard 10 for a certain period of time, indicating that the user does not have any action during that time, processing device 20 automatically switches to parameter monitoring mode to continue monitoring the welding process.
Preferably, the set time threshold is 10s.
As for the power supply mode of the programmer, the invention is set as follows:
the programmer has a power supply device.
The power supply device comprises a power supply interface, a first voltage reduction module, a second voltage reduction module and a third voltage reduction module, wherein:
the power interface is provided with an input end and an output end, and the input end of the power interface is electrically connected with a control box.
The first step-down module is electrically connected to the output end of the power interface and the display device 30, and is configured to convert the output voltage of the power interface into a first working voltage, and output the first working voltage to the display device 30.
The second step-down module is electrically connected to the output end of the first step-down module and the processing device 20, and is configured to convert the first working voltage into a second working voltage, and output the second working voltage to the processing device 20.
The third step-down module is electrically connected to the output end of the power interface and the communication device 40, and is configured to convert the output voltage of the power interface into a third working voltage, and output the third working voltage to the communication device 40.
The specific values of the output voltage, the first operating voltage, the second operating voltage, and the third operating voltage of the power interface are determined according to the operating demand voltages of the display device 30, the processing device 20, and the communication device 40.
Referring to fig. 4, for example, if we select a 32-bit STM 32-series single-chip microcomputer as the main control chip of the processing device 20, the display screen is an LCD12864 display screen with a word stock, and the 485 circuit is an ADM2483 with an isolated 485 chip, the above voltages can be set as follows:
the output voltage of the power interface is 24V.
The first working voltage is 5V.
The second operating voltage is 3.3V.
The third operating voltage is 5V.
Specifically, the power interface takes power from the control box, and the control box provides 24V power for the power interface as initial power supply voltage; the first voltage reduction module adopts a voltage stabilizing module LM2576S-5 to convert 24V into 5V to supply power for the display screen; the second step-down module adopts a step-down module AMS1117-33 to convert 5V into 3.3V for supplying power to the singlechip; the third step-down module adopts a Jin Shengyang-24V-to-5V power module to convert 24V into 5V to supply power for the 485 isolation chip ADM 2483.
In combination with fig. 2, on the basis of the programmer for the medium frequency inverter resistance welding system, the invention also refers to a working method based on the programmer, which comprises the following steps:
step 1, in response to the start of the programmer, the working mode of the processing device 20 is switched to the parameter monitoring mode, and the driving parameter reading unit 22 reads all the current welding parameters of the welding controller in real time or at a first set frequency through the communication device 40, and displays the parameters through the display device 30.
Step 2, driving the scanner 21 to read the input key values of the matrix keyboard 10 at the second set frequency, and
in response to a command for retrieving any welding parameter from the matrix keyboard 10, the corresponding welding parameter in the parameter reading unit 22 is read, displayed by the display device 30, and a first switching command is sent to the operation mode switching unit 24 to switch the operation mode of the processing device 20 to the parameter adjustment mode.
Step 3, in response to the operation mode of the processing device 20 being the parameter adjustment mode, receiving the input key value of the matrix keyboard 10 read by the scanning portion 21 in real time or at the third set frequency, and driving the parameter adjustment portion 23 to modify the welding parameter currently selected in the welding controller according to the input key value.
Further, the working method further comprises the following steps:
the following two conditions are satisfied simultaneously in response to: 1) The operation mode of the processing device 20 is a parameter adjustment mode, 2) the input key value read by the scanning unit 21 received within a set time threshold is unchanged, and the parameter adjustment unit 23 is driven to feed back a second switching command to the operation mode switching unit 24, so as to switch the operation mode of the processing device 20 to the parameter monitoring mode.
The invention also provides a software supporting mode.
When the program starts, each clock and each peripheral are initialized, a starting picture is displayed on a display screen,
all welding parameters are read once by using a MODBUS protocol from the controller, and all welding parameters need to be read again every time the specification number is selected because the machine cannot be powered down to save the parameters.
And then enters a dead-loop function lcd_process () in the large loop, wherein the swtich state machine is used to Process each key value combination, and a scanning mode is adopted to judge whether the key of the matrix keyboard 10 is pressed.
Case: the function WELD_STA_Disp () in 0 is used as a main display interface for displaying the welding result parameters, pressure value, specification number, welding mode and welding point number when no key is pressed.
After each state execution is completed, the semaphore sta_map needs to be set to 0 to switch the display interface to the main display interface at the next cycle.
The u16lcd_cfc_write (char_p1, char_p2, u16 temp) function is a parameter setting function, p1 is the name of a setting parameter, p2 is the unit of the setting parameter, temp is the last setting value of the setting parameter, and when the setting parameters are displayed, the function can be perfectly displayed by only changing the three parameters.
When setting parameters, each time the confirm key is pressed, the set value is required to be judged to be not satisfactory, and if the set value is not satisfactory, a warning is required to be given to reset the LCD_Warning ("duty ratio is set to be overrun |").
If the set parameters meet the requirements, enabling the 485 transmitting end to prepare to transmit data, wherein the ADM2483 chip with isolation is selected as the 485 chip of the machine, when the state is switched each time, 10ms is needed to wait, otherwise, the complete MODBUS data frame cannot be transmitted or received.
EN_TX()；
Delay_ms(10)；
In the machine, serial port 1 is used for communication with 485 chips, and whether the MODBUS data frame is ended or not needs to be judged in interruption. Since the MODBUS data frame has no frame tail, only a timing mode can be used to judge whether a frame is ended. The timer 2 is started in the interrupt of the serial port 1.
TIM_Cmd(TIM2,ENABLE)；
TIM_SetCounter(TIM2,0)；
TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE)；
The interrupt priority of the timer 2 is lower than that of the serial port 1, and the count value of the timer 2 is reset to count again as long as the serial port 1 is interrupted by data, and the timer 2 counts to a set value to enter the interrupt to enable the uart0_rev_comflag to be set to 1 and inform the main function processing only when the transmission of one frame of data is finished and no data is transmitted.
The process is then continually cycled.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A programmer for a medium frequency inverter resistance welding system having a welding controller for controlling welding parameters, the programmer comprising a matrix keyboard, a display device, a communication device, a processing device;
the processing device comprises a scanning part, a parameter reading part, a parameter adjusting part and a working mode switching part, wherein the parameter reading part and the parameter adjusting part establish a data communication link with the welding controller through the communication device;
the display device is electrically connected with the processing device and displays corresponding pictures according to control instructions of the processing device;
the processing device has two modes of operation: the processing device completes the switching of the working modes of the processing device through the working mode switching part;
the processing device responds to the start of the programmer, and the initial working mode is a parameter monitoring mode:
when the processing device is in a parameter monitoring mode, the parameter reading part reads all current welding parameters of the welding controller in real time or at a first set frequency through the communication device and displays the current welding parameters through the display device;
the calling instruction of each welding parameter corresponds to a key value;
the scanning part is electrically connected with the matrix keyboard, is electrically connected with the parameter reading part, is electrically connected with the working mode switching part, and is arranged to read the input key value of the matrix keyboard at a second set frequency, and
the following two conditions are satisfied simultaneously in response to: 1) The working mode of the processing device is a parameter monitoring mode, 2) the input key value of the matrix keyboard is a calling instruction of any welding parameter, the corresponding welding parameter in the parameter reading part is read and displayed by the display device, and a first switching instruction is sent to the working mode switching part;
the working mode switching part responds to the first switching instruction and switches the working mode of the processing device into a parameter adjustment mode;
the parameter adjusting part is electrically connected with the scanning part and the working mode switching part, responds to the working mode of the processing device as a parameter adjusting mode, receives the input key value of the matrix keyboard read by the scanning part in real time or at a third set frequency, and modifies the welding parameter currently selected in the welding controller according to the input key value.
2. The programmer for an intermediate frequency inverter resistance welding system according to claim 1, wherein the parameter adjustment section is further configured to be simultaneously established in response to two conditions: 1) The working mode of the processing device is a parameter adjustment mode, 2) the input key value read by the scanning part received in a set time threshold range is unchanged, and a second switching instruction is fed back to the working mode switching part;
the operation mode switching section switches the operation mode of the processing device to the parameter monitoring mode in response to the second switching instruction.
3. The programmer for an intermediate frequency inverter resistance welding system of claim 2, wherein the set time threshold is 10s.
4. The programmer for an intermediate frequency inverter resistance welding system according to claim 1, wherein the communication device is a 485 bus circuit comprising an ADM2483 chip.
5. The programmer for an intermediate frequency inverter resistance welding system of claim 4, wherein the parameter reading portion and the parameter adjustment portion are in data communication with the welding controller using a MODBUS protocol.
6. The programmer for an intermediate frequency inverter resistance welding system of claim 1 wherein the programmer has a power supply device;
the power supply device comprises a power supply interface, a first voltage reduction module, a second voltage reduction module and a third voltage reduction module, wherein:
the power interface is provided with an input end and an output end, and the input end of the power interface is electrically connected with a control box;
the first voltage reduction module is electrically connected with the output end of the power interface and the display device, and is used for converting the output voltage of the power interface into a first working voltage and outputting the first working voltage to the display device;
the second voltage reduction module is electrically connected with the output end of the first voltage reduction module and the processing device, and is used for converting the first working voltage into a second working voltage and outputting the second working voltage to the processing device;
the third voltage reduction module is electrically connected with the output end of the power interface and the communication device, and is used for converting the output voltage of the power interface into a third working voltage and outputting the third working voltage to the communication device.
7. The programmer for an intermediate frequency inverter resistance welding system of claim 6, wherein the output voltage of the power interface is 24V;
the first working voltage is 5V;
the second working voltage is 3.3V;
the third operating voltage is 5V.
8. The programmer for an intermediate frequency inverter resistance welding system of claim 1, wherein the matrix keyboard is a 4*4 matrix keyboard.
9. A method of operating a programmer for an intermediate frequency inverter resistance welding system according to any of claims 1-8, the method comprising:
step 1, responding to the starting of a programmer, switching the working mode of a processing device into a parameter monitoring mode, and driving a parameter reading part to read all current welding parameters of a welding controller in real time or at a first set frequency through a communication device and displaying the current welding parameters through a display device;
step 2, driving the scanning part to read the input key value of the matrix keyboard at a second set frequency, and
responding to a retrieval instruction of which the input key value of the matrix keyboard is any welding parameter, reading the corresponding welding parameter in the parameter reading part, displaying the welding parameter through the display device, and sending a first switching instruction to the working mode switching part to switch the working mode of the processing device into a parameter adjustment mode;
and 3, responding to the working mode of the processing device as a parameter adjustment mode, receiving the input key value of the matrix keyboard read by the scanning part in real time or at a third set frequency, and driving the parameter adjustment part to modify the welding parameter currently selected in the welding controller according to the input key value.
10. The method of operation of a programmer for an intermediate frequency inverter resistance welding system of claim 9, further comprising:
the following two conditions are satisfied simultaneously in response to: 1) The working mode of the processing device is a parameter adjustment mode, 2) the input key value read by the scanning part received in a set time threshold range is unchanged, and the parameter adjustment part is driven to feed back a second switching instruction to the working mode switching part so as to switch the working mode of the processing device into a parameter monitoring mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289030.7A CN108563191B (en) | 2018-03-30 | 2018-03-30 | Programmer for medium-frequency inversion resistance welding system and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289030.7A CN108563191B (en) | 2018-03-30 | 2018-03-30 | Programmer for medium-frequency inversion resistance welding system and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108563191A CN108563191A (en) | 2018-09-21 |
| CN108563191B true CN108563191B (en) | 2023-08-04 |
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| CN111112815A (en) * | 2020-01-03 | 2020-05-08 | 东风柳州汽车有限公司 | System for collecting welding parameters and monitoring on line by using spot welding machine programmer interface |
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| CN200991800Y (en) * | 2006-12-29 | 2007-12-19 | 北京工业大学 | All-digit-control two-wire MAG welding control system |
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| CA2175682A1 (en) * | 1993-11-05 | 1995-05-11 | James Anthony Barry | Interactive programmable interface for relegendable lcd keyswitches |
| CN102043383A (en) * | 2009-10-19 | 2011-05-04 | 北京市朝阳自动化仪表厂 | Parameter adjustment method and parameter setting unit of thyristor adjuster in serial synchronous communication |
| CN102053712B (en) * | 2009-11-02 | 2013-02-20 | 研祥智能科技股份有限公司 | Multi-keyboard input system, input equipment, switching device and control method |
| CN102554441B (en) * | 2011-12-02 | 2014-02-05 | 贵州黎阳航空动力有限公司 | Constant-current control device for welding power source of medium-frequency inverter resistance electric welding machine and control method for welding power source |
| CN104390044B (en) * | 2014-09-16 | 2017-02-08 | 深圳市麦格米特控制技术有限公司 | Electro-hydraulic proportional valve controller based on programmable controller |
| CN104932380B (en) * | 2015-06-19 | 2017-07-21 | 中国船舶重工集团公司第七二六研究所 | The power supply real-time monitoring system and method for multi-mode multichannel |
| CN205290045U (en) * | 2015-12-31 | 2016-06-08 | 南京绥德自动焊接装备有限公司 | Integration intermediate frequency contravariant spot welding power |
| CN205540063U (en) * | 2016-04-12 | 2016-08-31 | 广州捷士电子科技有限公司 | Handhold programmer |
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| CN200991800Y (en) * | 2006-12-29 | 2007-12-19 | 北京工业大学 | All-digit-control two-wire MAG welding control system |
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