CN210804081U - Arc voltage regulator control module and system based on digital control - Google Patents
Arc voltage regulator control module and system based on digital control Download PDFInfo
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- CN210804081U CN210804081U CN201922477546.7U CN201922477546U CN210804081U CN 210804081 U CN210804081 U CN 210804081U CN 201922477546 U CN201922477546 U CN 201922477546U CN 210804081 U CN210804081 U CN 210804081U
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Abstract
The utility model relates to a plasma cutting technical field specifically discloses an arc voltage heightening device control module based on digital control, and it includes: the arc voltage acquisition circuit and the cutting gun height control circuit are respectively and electrically connected with the microprocessor; and the microprocessor outputs two paths of PWM signals and two paths of direction control signals to the cutting torch height control circuit according to the arc voltage acquisition signals acquired by the arc voltage acquisition circuit, and the cutting torch height control circuit outputs two paths of motor control signals according to the two paths of PWM signals and the two paths of direction control signals, and the two paths of motor control signals are used for adjusting the lifting amplitude of a motor provided with a cutting torch. Therefore, the utility model discloses can press the size according to the arc, the amplitude of rise of the motor of cutting torch is installed in automatically regulated, makes cutting electric arc invariable at a stable magnitude of voltage.
Description
Technical Field
The utility model relates to a plasma cutting technical field, in particular to ware control module is increaseed to arc voltage based on digital control.
Background
At present, when a user carries out plasma cutting on a workpiece, the height of the workpiece is uneven or the cutting torch is unstably held by a worker, so that the height change of the cutting torch and the height change of the workpiece are inconsistent, the voltage of a cutting arc is inconsistent, and finally the problems that the width of a cutting seam is inconsistent, the cutting seam is not vertical and the like are caused. Therefore, a control scheme is needed that can automatically adjust the arc voltage according to specific use conditions.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the arc voltage regulator control module based on digital control can automatically regulate the arc voltage according to specific use conditions.
In order to achieve the above object, the present invention provides the following technical solutions:
an arc voltage regulator control module based on digital control, comprising: the arc voltage acquisition circuit and the cutting gun height control circuit are respectively and electrically connected with the microprocessor; wherein,
the microprocessor is used for outputting two paths of PWM signals and two paths of direction control signals to the cutting gun height control circuit according to the arc voltage acquisition signals acquired by the arc voltage acquisition circuit;
the cutting gun height control circuit is used for outputting two paths of motor control signals according to the two paths of PWM signals and the two paths of direction control signals output by the microprocessor; the two paths of motor control signals are used for adjusting the lifting amplitude of the motor.
According to a specific implementation mode, in the arc voltage heightening device control module based on digital control, the arc voltage acquisition circuit comprises a first optical coupler, a potentiometer and a voltage follower; the arc voltage acquisition signal is input to one end of the first optocoupler, the other end of the first optocoupler is connected with one end of the potentiometer and the voltage input end of the voltage follower respectively, the other end of the potentiometer is grounded, and the output end of the voltage follower is connected with the microprocessor.
According to a specific implementation mode, in the arc voltage heightening device control module based on digital control, the cutting torch height control circuit comprises a first push-pull output type optical coupler, a second push-pull output type optical coupler, a first triode output type optical coupler, a second triode output type optical coupler, a first field effect transistor, a second field effect transistor, a third field effect transistor and a fourth field effect transistor; wherein,
the input ends of the first push-pull output type optical coupler and the second push-pull output type optical coupler are respectively connected with the microprocessor to obtain a path of direction control signal; the output end of the first push-pull output type optocoupler is connected with the grid electrode of the first field effect transistor, and the output end of the second push-pull output type optocoupler is connected with the grid electrode of the second field effect transistor;
the input ends of the first triode output type optocoupler and the second triode output type optocoupler are respectively connected with the microprocessor to obtain a PWM control signal; the output end of the first triode output type optocoupler is connected with the grid electrode of the third field effect transistor, and the output end of the second triode output type optocoupler is connected with the grid electrode of the fourth field effect transistor;
the drain electrodes of the first field effect tube and the second field effect tube are both connected with a voltage source, the source electrode of the first field effect tube is connected with the drain electrode of the third field effect tube, the source electrode of the second field effect tube is connected with the drain electrode of the fourth field effect tube, and the source electrodes of the third field effect tube and the fourth field effect tube are grounded together; and the source electrodes of the first field effect transistor and the second field effect transistor are respectively used as the output ends of one path of motor control signals.
According to a specific embodiment, the utility model discloses ware control module is increaseed to arc voltage based on digital control still including being connected to microprocessor's motor lift threshold value detection circuitry for export two tunnel threshold value detection signal extremely microprocessor.
Based on the same invention concept, the utility model also provides an arc voltage heightening device control system, which comprises the arc voltage heightening device control module based on digital control and a motor provided with a cutting torch; the arc voltage regulator control module based on digital control is used for controlling the lifting amplitude of the motor.
To sum up, compare with prior art, the beneficial effects of the utility model are that:
the utility model discloses ware control module is increaseed to arc voltage based on digital control, it includes: the arc voltage acquisition circuit and the cutting gun height control circuit are respectively and electrically connected with the microprocessor; the cutting torch height control circuit outputs two paths of motor control signals according to the two paths of PWM signals and the two paths of direction control signals output by the microprocessor, and the two paths of motor control signals are used for adjusting the lifting amplitude of the motor. Therefore, the utility model discloses can press the size according to the arc, the amplitude of rise of the motor of cutting torch is installed in automatically regulated, makes cutting electric arc invariable at a stable magnitude of voltage.
Description of the drawings:
fig. 1 is a basic circuit block diagram of the present invention;
fig. 2 is a circuit block diagram of an embodiment of the present invention;
FIG. 3 is a schematic diagram of a pin connection of a microprocessor according to the present invention;
FIG. 4 is a circuit diagram of a cutting torch height control circuit of the present invention;
fig. 5 is a circuit diagram of the motor threshold detection circuit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
As shown in fig. 1, the utility model discloses ware control module is increaseed to arc voltage based on digital control includes: arc voltage regulator control module based on digital control, it includes: the arc voltage acquisition circuit and the cutting gun height control circuit are respectively and electrically connected with the microprocessor; wherein,
the microprocessor is used for outputting two paths of PWM signals and two paths of direction control signals to the cutting gun height control circuit according to the arc voltage acquisition signals acquired by the arc voltage acquisition circuit;
the cutting gun height control circuit is used for outputting two paths of motor control signals according to the two paths of PWM signals and the two paths of direction control signals output by the microprocessor; the two paths of motor control signals are used for adjusting the lifting amplitude of the motor.
Specifically, as shown in fig. 3, the arc voltage collecting circuit of the present invention includes a first optocoupler U6, a potentiometer W1, and a voltage follower U7A. The 5 and 6 pins of the connector JP5 input the arc voltage acquisition signal to one end of a first optocoupler U6, the other end of the first optocoupler is connected with one end of a potentiometer W1 and a voltage input end of a voltage follower U7A respectively, the other end of the potentiometer W1 is grounded, and an output end of the voltage follower U7A is connected with the microprocessor.
As shown in fig. 2 the utility model discloses an embodiment, in this embodiment the utility model discloses arc voltage heightening device control module based on digital control still includes motor lift threshold detection circuit.
As shown in fig. 5, the motor threshold detection circuit includes a first inductor L10, a second inductor L11, a third transistor output optocoupler U13, and a fourth transistor output optocoupler U15.
Specifically, the connector JP7 is connected with a Motor interface, pins 1 and 2 of the connector are respectively used for outputting Motor control signals Motor + and Motor-, pins 3 and 4 of the connector are respectively connected with a first inductor L10 and a second inductor L11, a down _ LIMT signal and an UP _ LIMT signal are input into a third triode output type optocoupler U13 and a fourth triode output type optocoupler U15, and a down _ LIMT1 signal and an UP _ LIMT1 signal are respectively output to a microprocessor by a third triode output type optocoupler U13 and a fourth triode output type optocoupler U15.
As shown in fig. 4, the cutting torch height control circuit of the utility model comprises: the photoelectric conversion circuit comprises a first push-pull output type optocoupler U4, a second push-pull output type optocoupler U3, a first triode output type optocoupler U8, a second triode output type optocoupler U9, a first field-effect tube VT1, a second field-effect tube VT2, a third field-effect tube VT3 and a fourth field-effect tube VT 4.
The input ends of the first push-pull output type optical coupler U4 and the second push-pull output type optical coupler U3 are respectively connected with the microprocessor so as to obtain direction control signals DIR _ L and DIR _ RR; the output end of the first push-pull output type optical coupler U3 is connected with the grid electrode of the first field-effect transistor VT1, and the output end of the second push-pull output type optical coupler U4 is connected with the grid electrode of the second field-effect transistor VT 2.
The input ends of the first triode output type optocoupler U8 and the second triode output type optocoupler U9 are respectively connected with the microprocessor to obtain PWM control signals PWM _ L and PWM _ R; the output end of the first triode output type optocoupler U8 is connected with the grid electrode of the third field-effect transistor VT3, and the output end of the second triode output type optocoupler U9 is connected with the grid electrode of the fourth field-effect transistor VVT 4;
the drains of the first field effect transistor VT1 and the second field effect transistor VT2 are both connected with a voltage source +24V, the source of the first field effect transistor VT1 is connected with the drain of the third field effect transistor VT3, the source of the second field effect transistor VT2 is connected with the drain of the fourth field effect transistor VT4, and the sources of the third field effect transistor VT3 and the fourth field effect transistor VT4 are commonly grounded; the source electrodes of the first field effect transistor VT1 and the second field effect transistor VT2 are respectively used as the output ends of Motor control signals Motor + and Motor-.
Based on the same invention concept, the utility model also provides an arc voltage heightening device control system, which comprises an arc voltage heightening device control module based on digital control and a motor provided with a cutting torch; and the arc voltage regulator control module based on digital control is used for controlling the lifting amplitude of the Motor, namely outputting Motor control signals Motor + and Motor-to the Motor provided with the cutting torch so as to control the lifting amplitude of the Motor, thereby enabling the cutting arc to be constant at a stable voltage value.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides an arc voltage increases ware control module based on digital control which characterized in that includes: the arc voltage acquisition circuit and the cutting gun height control circuit are respectively and electrically connected with the microprocessor; wherein,
the microprocessor is used for outputting two paths of PWM signals and two paths of direction control signals to the cutting gun height control circuit according to the arc voltage acquisition signals acquired by the arc voltage acquisition circuit;
the cutting gun height control circuit is used for outputting two paths of motor control signals according to the two paths of PWM signals and the two paths of direction control signals output by the microprocessor; the two paths of motor control signals are used for adjusting the lifting amplitude of the motor.
2. The digital control-based arc voltage regulator control module according to claim 1, wherein the arc voltage acquisition circuit comprises a first optical coupler, a potentiometer, and a voltage follower; the arc voltage acquisition signal is input to one end of the first optocoupler, the other end of the first optocoupler is connected with one end of the potentiometer and the voltage input end of the voltage follower respectively, the other end of the potentiometer is grounded, and the output end of the voltage follower is connected with the microprocessor.
3. The digitally-controlled-based arc voltage regulator control module according to claim 1, wherein the burning torch height control circuit comprises a first push-pull output type optocoupler, a second push-pull output type optocoupler, a first triode output type optocoupler, a second triode output type optocoupler, a first field effect transistor, a second field effect transistor, a third field effect transistor and a fourth field effect transistor; wherein,
the input ends of the first push-pull output type optical coupler and the second push-pull output type optical coupler are respectively connected with the microprocessor to obtain a path of direction control signal; the output end of the first push-pull output type optocoupler is connected with the grid electrode of the first field effect transistor, and the output end of the second push-pull output type optocoupler is connected with the grid electrode of the second field effect transistor;
the input ends of the first triode output type optocoupler and the second triode output type optocoupler are respectively connected with the microprocessor to obtain a PWM control signal; the output end of the first triode output type optocoupler is connected with the grid electrode of the third field effect transistor, and the output end of the second triode output type optocoupler is connected with the grid electrode of the fourth field effect transistor;
the drain electrodes of the first field effect tube and the second field effect tube are both connected with a voltage source, the source electrode of the first field effect tube is connected with the drain electrode of the third field effect tube, the source electrode of the second field effect tube is connected with the drain electrode of the fourth field effect tube, and the source electrodes of the third field effect tube and the fourth field effect tube are grounded together; and the source electrodes of the first field effect transistor and the second field effect transistor are respectively used as the output ends of one path of motor control signals.
4. The digital control-based arc voltage regulator control module according to claim 1, further comprising a motor rise and fall threshold detection circuit connected to the microprocessor for outputting two threshold detection signals to the microprocessor.
5. An arc voltage regulator control system is characterized by comprising the arc voltage regulator control module based on digital control according to any one of claims 1-4, and a motor provided with a cutting torch; the arc voltage regulator control module based on digital control is used for controlling the lifting amplitude of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922477546.7U CN210804081U (en) | 2019-12-31 | 2019-12-31 | Arc voltage regulator control module and system based on digital control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922477546.7U CN210804081U (en) | 2019-12-31 | 2019-12-31 | Arc voltage regulator control module and system based on digital control |
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| CN210804081U true CN210804081U (en) | 2020-06-19 |
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| CN201922477546.7U Active CN210804081U (en) | 2019-12-31 | 2019-12-31 | Arc voltage regulator control module and system based on digital control |
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Effective date of registration: 20220518 Address after: 610000 No. 861, Gangtong North 4th Road, north area of modern industrial port, Pidu District, Chengdu, Sichuan Patentee after: Chengdu Weike Electronic Technology Co.,Ltd. Address before: 610000 No. 29, Section 1, East 2nd Ring Road, Chenghua District, Chengdu, Sichuan Patentee before: CHENGDU ZHONGYU ELECTRONIC TECHNOLOGY Co.,Ltd. |
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