CN210863993U - Direct current power supply voltage monitor of laser cutting machine - Google Patents
Direct current power supply voltage monitor of laser cutting machine Download PDFInfo
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- CN210863993U CN210863993U CN201921639533.9U CN201921639533U CN210863993U CN 210863993 U CN210863993 U CN 210863993U CN 201921639533 U CN201921639533 U CN 201921639533U CN 210863993 U CN210863993 U CN 210863993U
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Abstract
The utility model provides a direct current power supply voltage monitor of a laser cutting machine, which is connected with a direct current power supply of the laser cutting machine and comprises an input unit, an MCU master control unit, a detection sampling circuit unit, a monitor power supply, an alarm output unit and a digital display unit; the detection sampling circuit is connected with the direct current power supply and is used for acquiring a voltage to be detected of the direct current power supply; after voltage to be detected is subjected to voltage division processing by the detection sampling circuit, the divided voltage is transmitted to the MCU main control unit; the MCU main control unit samples the received voltage to be detected through an analog-to-digital converter (ADC), converts the analog voltage into corresponding digital voltage and stores the digital voltage to the MCU main control unit; and the MCU main control unit sends the digital voltage value to the digital display unit for real-time display.
Description
Technical Field
The utility model relates to a laser cutting field especially relates to a laser cutting machine's DC power supply voltage monitor.
Background
Laser cutting is to irradiate a workpiece by using a focused high-power-density laser beam, so that the irradiated material is quickly melted, vaporized and ablated or reaches a burning point, and meanwhile, the melted substance is blown off by means of high-speed airflow coaxial with the laser beam, so that the workpiece is cut; laser cutting is one of the thermal cutting methods. Compared with other thermal cutting methods, the laser cutting method has the general characteristics of high cutting speed and high quality.
In the electrical system of the existing laser cutting machine, the application of a direct current power supply in the cutting machine system is wide, and the direct current power supply comprises various safety detection switches, servo encoders, various electromagnetic valves, proportional valves and the like. If the voltage is lower or higher during the operation of the machine, the operation of the machine and the effect of laser cutting are affected. In the prior art, an electrical system of a laser cutting machine does not have a voltage monitoring function generally, the voltage of a switch power supply is not monitored, and the operation of the machine is influenced when the power supply fluctuates. Because the fluctuation of the voltage can not be adjusted in time, calculation errors of each proportional valve and the like are caused, the laser cutting effect is influenced, and even a cutting attack piece is scrapped. And when the voltage is subjected to overrun, early warning cannot be given in advance. When the machine can not work normally, the key factors causing the abnormality can not be detected quickly, and inconvenience is brought to maintenance.
For example, chinese patent publication No. CN209407667U discloses a tunnel smoke discharge laser cutting machine, which includes a cutting device, a purifying device, a moving platform and a frame; the machine frame is provided with a cutting platform used for placing a workpiece to be cut, the cutting platform is provided with a guide rail, and the moving platform is arranged on the guide rail in a sliding manner; the cutting device is arranged on the motion platform, and the motion platform is a three-dimensional motion platform; the purifying device comprises a supporting body and a smoke exhaust device, the supporting body is fixed on the side edge of the rack, the smoke exhaust device is partially fixed on the supporting body and partially fixed on the cutting device, and the smoke exhaust device is used for absorbing smoke generated when the cutting device cuts the workpiece, so that the surface of a laser processing product is prevented from being polluted by the smoke. This patent does not have a voltage monitoring device to detect the voltage.
Therefore, in order to solve the problems in the prior art, it is important to provide a dc power supply voltage monitor of a laser cutting machine, which can effectively and quickly detect the switching power supply voltage in real time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the problem that above-mentioned prior art exists, provided a laser cutting machine's DC power supply voltage monitor, this monitor circuit structure is simple, and the volume is less, and can realize switching power supply voltage's detection in real time, effectively, fast, has the practicality, safe and reliable's advantage.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a direct current power supply voltage monitor of a laser cutting machine is connected with a direct current power supply of the laser cutting machine; the direct-current power supply voltage monitor comprises an input unit, an MCU main control unit, a detection sampling circuit unit, a monitor power supply, an alarm output unit and a digital display unit;
the monitor power supply is used for supplying power to each unit;
the input unit, the detection sampling circuit unit, the alarm output unit and the digital display unit are all connected with the MCU main control unit;
the input unit comprises one or more keys;
the detection sampling circuit is connected with the direct current power supply and is used for acquiring a voltage to be detected of the direct current power supply; after the voltage to be detected is subjected to voltage division processing by the detection sampling circuit, the divided voltage is transmitted to the MCU main control unit;
the MCU main control unit is provided with an analog-to-digital converter (ADC); the MCU main control unit samples the received voltage to be detected through an analog-to-digital converter (ADC), converts the analog voltage into corresponding digital voltage and stores the digital voltage to the MCU main control unit;
the MCU main control unit sends the digital voltage value to the digital display unit for real-time display;
the input unit is used for acquiring a preset voltage value or a preset voltage range and sending the preset voltage value or the preset voltage range to the MCU main control unit; the MCU main control unit compares a preset voltage value/a preset voltage range with a digital voltage value; and when the digital voltage value deviates from the preset voltage value or exceeds the preset voltage range, the MCU main control unit controls the alarm output unit to send out an alarm signal.
Specifically, the deviation of the digital voltage value from the preset voltage value means that the digital voltage value is obviously greater than or less than the preset voltage value; the specific deviation amplitude can be set by a user. For example, the deviation is ± 0.5V, where 0.5V is a value set by the user's discretion.
Specifically, the principle of the technical scheme is as follows: the voltage of the direct current power supply is to-be-detected voltage, the detection circuit is connected into an analog-to-digital converter (ADC) of the MCU main control unit after acquiring the to-be-detected voltage and sampling and dividing the voltage, the analog voltage is converted into digital voltage through calculation and analysis of the MCU main control unit, and the digital voltage value is displayed to the digital display unit. Meanwhile, the MCU main control unit acquires a preset voltage value or a preset voltage range input by a user through a key (input unit), compares the preset voltage value or the preset voltage range with the actually detected digital voltage, and generates an alarm prompt if the digital voltage deviates from the preset voltage value or exceeds the preset voltage range, so that the user can know the actual voltage deviation, and then the adjustment is carried out, the laser cutting effect and the normal operation of the machine are ensured, and the operation of the machine with diseases is avoided.
Preferably, the MCU main control unit comprises a single chip microcomputer.
The single-chip microcomputer comprises an AVR single-chip microcomputer, a Motorola single-chip microcomputer, a Microchip single-chip microcomputer, a 51 single-chip microcomputer and an STP single-chip microcomputer.
Preferably, the singlechip adopts an ATmega16 singlechip.
Preferably, the alarm output unit includes a buzzer or an alarm lamp.
Specifically, the buzzer or the alarm lamp can play a better alarm role.
Preferably, the dc power supply comprises a 24V switching power supply.
Preferably, the digital display unit comprises a display screen and a nixie tube.
Specifically, each unit of the technical scheme can be integrated on the circuit board, and the display screen or the nixie tube can be integrated on the circuit board together, so that the structure is more reasonable.
Preferably, the dc power supply voltage monitor further comprises an output control unit, and the output control unit is respectively connected with the MCU main control unit and the dc power supply; the output control unit is used for controlling the voltage of the direct-current power supply;
and if the digital voltage value deviates from a preset voltage value or exceeds a preset voltage range, the output control unit regulates the voltage of the direct-current power supply.
In the above, the output control unit is provided with a relay.
The utility model has the advantages that:
the utility model provides a pair of laser cutting machine DC power supply monitor, it can be in real time, effective, realize switching power supply voltage's detection fast, can give the early warning suggestion when voltage fluctuation in excess of range simultaneously, guarantees that the voltage that switching power supply provided can in time adjust at the required voltage range of machine operation, avoids the machine to take a illness to move. The problem that the voltage deviation in the operation of the machine affects the operation of the machine and the laser cutting effect in the prior art can be effectively solved.
Drawings
Fig. 1 is the utility model provides a dc power supply voltage monitor's circuit connection schematic diagram.
Detailed Description
The following describes the present invention with reference to the accompanying drawings.
As shown in fig. 1, the present embodiment provides a dc power supply voltage monitor of a laser cutting machine, where the laser cutting machine includes a laser generator generating a laser light source, a light beam transmission assembly, a working platform for placing a cutting object, a numerical control cabinet, and a dc power supply for supplying power; the numerical control cabinet is used for controlling the laser generator and the light beam transmission assembly;
the light beam transmission assembly comprises a focusing device and a plurality of reflectors, the reflectors are in shaft connection with the motor, and laser emitted by the laser generator is reflected to the working platform through the reflectors;
the direct-current power supply voltage monitor is connected with a direct-current power supply of the laser cutting machine and comprises an input unit, an MCU (microprogrammed control unit), a detection sampling circuit unit, a monitor power supply, an alarm output unit and a digital display unit;
the monitor power supply is used for supplying power to each unit;
the input unit, the detection sampling circuit unit, the alarm output unit and the digital display unit are all connected with the MCU main control unit;
the input unit comprises a key;
the detection sampling circuit is connected with the direct current power supply and is used for acquiring a voltage to be detected of the direct current power supply; after the voltage to be detected is subjected to voltage division processing by the detection sampling circuit, the divided voltage is transmitted to the MCU main control unit;
the MCU main control unit is provided with an analog-to-digital converter (ADC); the MCU main control unit samples the received voltage to be detected through an analog-to-digital converter (ADC), converts the analog voltage into corresponding digital voltage and stores the digital voltage to the MCU main control unit;
the MCU main control unit sends the digital voltage value to the digital display unit for real-time display;
the input unit is used for acquiring a preset voltage value or a preset voltage range and sending the preset voltage value or the preset voltage range to the MCU main control unit; the MCU main control unit compares a preset voltage value/a preset voltage range with a digital voltage value; and when the digital voltage value deviates from the preset voltage value or exceeds the preset voltage range, the MCU main control unit controls the alarm output unit to send out an alarm signal.
Specifically, the principle of the technical scheme is as follows: the voltage of the direct current power supply is to-be-detected voltage, the detection circuit is connected into an analog-to-digital converter (ADC) of the MCU main control unit after acquiring the to-be-detected voltage and sampling and dividing the voltage, the analog voltage is converted into digital voltage through calculation and analysis of the MCU main control unit, and the digital voltage value is displayed to the digital display unit. Meanwhile, the MCU main control unit acquires a preset voltage value or a preset voltage range input by a user through a key (input unit), compares the preset voltage value or the preset voltage range with the actually detected digital voltage, and generates an alarm prompt if the digital voltage deviates from the preset voltage value or exceeds the preset voltage range, so that the user can know the actual voltage deviation, and then the adjustment is carried out, and the laser cutting effect is ensured.
In this embodiment, the MCU main control unit employs an ATmega16 single chip microcomputer; the alarm output unit comprises a buzzer or an alarm lamp; the buzzer or the alarm lamp can play a better alarm role.
The direct current power supply adopts a 24V switching power supply. The digital display unit adopts a nixie tube.
Specifically, each unit can be integrated on the circuit board, and the nixie tube is used, so that the nixie tube can be integrated on the circuit board together, and the structure is more reasonable.
In this embodiment, the dc power supply voltage monitor further includes an output control unit, and the output control unit is respectively connected to the MCU main control unit and the dc power supply; the output control unit is used for controlling the voltage of the direct-current power supply; and if the digital voltage value deviates from a preset voltage value or exceeds a preset voltage range, the output control unit regulates the voltage of the direct-current power supply.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. The direct-current power supply voltage monitor of the laser cutting machine is characterized in that the direct-current power supply voltage monitor is connected with a direct-current power supply of the laser cutting machine;
the direct-current power supply voltage monitor comprises an input unit, an MCU main control unit, a detection sampling circuit unit, a monitor power supply, an alarm output unit and a digital display unit;
the monitor power supply is used for supplying power to each unit;
the input unit, the detection sampling circuit unit, the alarm output unit and the digital display unit are all connected with the MCU main control unit;
the input unit comprises one or more keys;
the detection sampling circuit is connected with the direct current power supply and is used for acquiring a voltage to be detected of the direct current power supply; after the voltage to be detected is subjected to voltage division processing by the detection sampling circuit, the divided voltage is transmitted to the MCU main control unit;
the MCU main control unit is provided with an analog-to-digital converter (ADC); the MCU main control unit samples the received voltage to be detected through an analog-to-digital converter (ADC), converts the analog voltage into corresponding digital voltage and stores the digital voltage to the MCU main control unit;
the MCU main control unit sends the digital voltage value to the digital display unit for real-time display;
the input unit is used for acquiring a preset voltage value or a preset voltage range and sending the preset voltage value or the preset voltage range to the MCU main control unit; the MCU main control unit compares a preset voltage value/a preset voltage range with a digital voltage value; and when the digital voltage value deviates from the preset voltage value or exceeds the preset voltage range, the MCU main control unit controls the alarm output unit to send out an alarm signal.
2. The dc supply voltage monitor of claim 1, wherein the MCU master control unit comprises a single-chip microcomputer.
3. The dc power supply voltage monitor of claim 2, wherein the single chip microcomputer comprises an AVR single chip microcomputer, a Motorola single chip microcomputer, a MicroChip single chip microcomputer, a 51 single chip microcomputer, and an STP single chip microcomputer.
4. The dc supply voltage monitor of claim 2, wherein the single-chip microcomputer is ATmega 16.
5. The dc supply voltage monitor according to claim 1, wherein the alarm output unit comprises a buzzer or an alarm lamp.
6. The dc supply voltage monitor of claim 1, wherein the dc power supply comprises a 24V switching power supply.
7. The dc supply voltage monitor as recited in claim 1, wherein the digital display unit comprises a display screen and a nixie tube.
8. The direct-current power supply voltage monitor according to claim 1, further comprising an output control unit, wherein the output control unit is respectively connected with the MCU main control unit and the direct-current power supply; the output control unit is used for controlling the voltage of the direct-current power supply;
and if the digital voltage value deviates from a preset voltage value or exceeds a preset voltage range, the output control unit regulates the voltage of the direct-current power supply.
9. The dc supply voltage monitor of claim 8, wherein the output control unit is provided with a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921639533.9U CN210863993U (en) | 2019-09-29 | 2019-09-29 | Direct current power supply voltage monitor of laser cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921639533.9U CN210863993U (en) | 2019-09-29 | 2019-09-29 | Direct current power supply voltage monitor of laser cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210863993U true CN210863993U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921639533.9U Active CN210863993U (en) | 2019-09-29 | 2019-09-29 | Direct current power supply voltage monitor of laser cutting machine |
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| Country | Link |
|---|---|
| CN (1) | CN210863993U (en) |
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2019
- 2019-09-29 CN CN201921639533.9U patent/CN210863993U/en active Active
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