Laser cutting control circuit and laser cutting control system

Abstract

The utility model provides a laser cutting control circuit and a laser cutting control system.The laser cutting control circuit comprises a processor, a laser control unit and a cutting head control unit; the processor is electrically connected with the laser control unit and the cutting head control unit, the laser control unit is used for being electrically connected with the laser, and the cutting head control unit is used for being electrically connected with a plurality of control devices of the cutting head; the processor is used for outputting a laser control signal to the laser control unit in response to the laser control instruction; in response to the cutting head control instruction, a cutting head control signal is output to the cutting head control unit; the laser control unit is used for responding to the laser control signal and controlling the laser to execute a laser execution action corresponding to the laser control instruction; and the cutting head control unit is used for responding to the cutting head control signal and controlling a plurality of control devices of the cutting head to execute execution actions corresponding to the cutting head control instruction.

Description

Technical Field

[0001] This application relates to the field of laser processing technology, and more specifically, to a laser cutting control circuit and a laser cutting control system. Background Technology

[0002] Currently, in the laser planar cutting and round tube cutting industries, embedded cutting and welding multi-functional systems using plasma flame cutting systems are commonly used. However, because plasma flame cutting systems require high-precision control and monitoring, they need to be equipped with plasma generators, high-performance microprocessors, and complex circuit boards. Therefore, the existing method of using embedded cutting and welding multi-functional systems with plasma flame cutting systems for laser cutting control is costly. Utility Model Content

[0003] The purpose of this application is to provide a laser cutting control circuit and a laser cutting control system to solve the problem of high cost in the current embedded cutting and welding multifunctional system that uses plasma flame cutting system for laser cutting control.

[0004] In a first aspect, this utility model provides a laser cutting control circuit, comprising: a processor, a laser control unit, and a cutting head control unit; the processor is electrically connected to both the laser control unit and the cutting head control unit; the laser control unit is electrically connected to the laser, and the cutting head control unit is electrically connected to multiple controllers of the cutting head; the processor is configured to output a laser control signal to the laser control unit in response to a laser control command; and to output a cutting head control signal to the cutting head control unit in response to a cutting head control command; the laser control unit is configured to control the laser to perform laser execution actions corresponding to the laser control command in response to the laser control signal; and the cutting head control unit is configured to control the multiple controllers of the cutting head to perform execution actions corresponding to the cutting head control command in response to the cutting head control signal.

[0005] The laser cutting control circuit designed above integrates functional units such as the laser control unit and the cutting head control unit onto a single control board via a processor. This results in a laser cutting control circuit that is small in size, simple in structure, and inexpensive in components, thereby reducing the cost and size of the laser cutting control circuit.

[0006] In an optional embodiment of the first aspect, the cutting head control unit includes a sensor acquisition subunit and a motor motion control subunit; both the sensor acquisition subunit and the motor motion control subunit are electrically connected to the processor, and the motor motion control subunit is used to be electrically connected to the motor of the cutting head; the sensor acquisition subunit is used to acquire the height value of the cutting head from the workpiece being cut, and convert the height value into a height signal and transmit it to the processor; the processor is used to transmit a motion control signal to the motor motion control subunit in response to the height signal and the target position signal of the cutting head; the motor motion control subunit is used to control the motor motion of the cutting head in response to the motion control signal, so that the cutting head moves to the target position.

[0007] In an optional embodiment of the first aspect, the cutting head control unit further includes a cutting head valve control subunit; the cutting head valve control subunit is electrically connected to the processor, and the cutting head valve control subunit is used to be electrically connected to the cutting head valve of the cutting head; the processor is specifically used to send a valve control signal to the cutting head valve control subunit in response to the cutting head control signal; the cutting head valve control subunit is used to control the cutting head valve to perform the corresponding valve opening and closing action in response to the valve control signal.

[0008] In the above implementation, this solution uses a sensor acquisition subunit and a motor motion control subunit to adjust the position of the cutting head and the workpiece. It also uses a cutting head valve control subunit to control the valve in the cutting head, thus making the designed laser cutting control circuit feature-rich and easy to control.

[0009] In an optional embodiment of the first aspect, the processor includes a controller and a memory; the controller is electrically connected to both the laser control unit and the cutting head control unit, and the memory is electrically connected to the controller; the memory is used to store laser control instructions and cutting head control instructions; the controller is used to retrieve laser control instructions and cutting head control instructions from the memory.

[0010] In the above implementation, the laser control instructions and cutting head control instructions are pre-stored in the processor's memory, thereby enabling the laser cutting control circuit designed in this solution to achieve laser cutting control in an offline manner, and thus to be applied in offline scenarios, improving the adaptability and convenience of the designed laser cutting control circuit.

[0011] In an optional embodiment of the first aspect, the laser cutting control circuit further includes an instruction forwarding unit; the instruction forwarding unit is communicatively connected to the processor; the instruction forwarding unit is used to forward laser control instructions and cutting head control instructions to the processor.

[0012] In an optional embodiment of the first aspect, the instruction forwarding unit includes a communication subunit; the processor communicates with the host computer through the communication subunit; the communication subunit is used to receive laser control instructions and cutting head control instructions issued by the host computer, and forward the laser control instructions and cutting head control instructions to the processor.

[0013] In an optional embodiment of the first aspect, the instruction forwarding unit includes a display driver subunit; the processor is electrically connected to the display touch device through the display driver subunit; the display driver subunit is used to receive laser control instructions and cutting head control instructions issued by the display touch device, and forward the laser control instructions and cutting head control instructions to the processor.

[0014] In the above-described implementation, the instruction forwarding unit can receive laser control instructions and cutting head control instructions issued by the user. Then, the instruction forwarding unit can forward the laser control instructions and cutting head control instructions to the processor. This allows the laser cutting control circuit designed in this scheme to receive control instructions from the user online in real time, thereby improving the real-time processing capability of the laser cutting control circuit designed in this scheme.

[0015] In an optional embodiment of the first aspect, the laser cutting control circuit further includes a digital connection unit; both the laser control unit and the cutting head control unit are electrically connected to the processor via the digital connection unit; the digital connection unit is used to receive the laser status signal fed back by the laser control unit and the status signals of each control device fed back by the cutting head control unit, and transmit the laser status signal and the status signals of each control device of the cutting head to the processor; the processor is also used to display the laser status signal and the status signals of each control device of the cutting head on the display touch device through the display driver subunit.

[0016] In the above implementation, this solution uses a digital connection unit to feed back the laser status and the cutting head status, which are then displayed on a touchscreen, thereby improving the safety and reliability of the laser cutting control circuit.

[0017] In an optional embodiment of the first aspect, the laser cutting control circuit further includes a power supply unit; the power supply unit is electrically connected to the processor, the laser control unit, and the cutting head control unit, respectively.

[0018] Secondly, this utility model provides a laser cutting control system, which includes a laser cutting control circuit according to any of the optional embodiments of the first aspect.

[0019] The laser cutting control system designed above includes the laser cutting control circuit described above. Therefore, the laser cutting control system integrates functional units such as the laser control unit and the cutting head control unit onto a single control board via a processor. This results in a laser cutting control circuit that is small in size, simple in structure, and inexpensive in components, thereby reducing the cost and size of the laser cutting control circuit. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a first circuit diagram of a laser cutting control circuit provided in an embodiment of this application;

[0022] Figure 2 This is a second circuit diagram of the laser cutting control circuit provided in an embodiment of this application;

[0023] Figure 3 A third circuit diagram of the laser cutting control circuit provided in an embodiment of this application;

[0024] Figure 4 A fourth circuit diagram of the laser cutting control circuit provided in an embodiment of this application;

[0025] Figure 5 A fifth circuit diagram of the laser cutting control circuit provided in an embodiment of this application;

[0026] Figure 6 A sixth circuit diagram of the laser cutting control circuit provided in the embodiments of this application;

[0027] Figure 7 A seventh circuit diagram of the laser cutting control circuit provided in an embodiment of this application;

[0028] Figure 8 The eighth circuit diagram of the laser cutting control circuit provided in the embodiments of this application.

[0029] Icons: 10-Processor; 110-Controller; 120-Memory; 130-Analog Generator Subunit; 140-Pulse Generator Subunit; 20-Laser Control Unit; 30-Cutting Head Control Unit; 310-Cutting Head Valve Control Subunit; 320-Sensor Acquisition Subunit; 330-Motor Motion Control Subunit; 40-Command Forwarding Unit; 410-Communication Subunit; 420-Display Driver Subunit; 50-Digital Connection Unit; 60-Power Supply Unit; 70-Wireless Communication Unit; A-Laser; B-Cutting Head; B1-Cutting Head Valve; B2-Motor; C-Host Computer; D-Display Touchscreen; E-Heat Dissipation Unit. Detailed Implementation

[0030] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0032] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0035] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0036] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0037] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0038] Currently, in the laser planar cutting and round tube cutting industries, embedded cutting and welding multi-functional systems using plasma flame cutting systems are commonly used. However, because plasma flame cutting systems require high-precision control and monitoring, they need to be equipped with plasma generators, high-performance microprocessors, and complex circuit boards. Therefore, the existing method of using embedded cutting and welding multi-functional systems with plasma flame cutting systems for laser cutting control is costly.

[0039] To address the aforementioned issues, this application provides a laser cutting control circuit and a laser cutting control system. The laser control and cutting head control functions are integrated onto a single control board via a processor, resulting in a small, low-cost, and easily controllable and integrated laser cutting control circuit and system. Furthermore, the laser cutting control circuit and system of this application also integrate motor motion control, height signal acquisition, command issuance ports, and digital input / output ports, making them feature-rich and easy to control and integrate. Additionally, this solution integrates wireless communication functionality, allowing connection to a mobile app via Wi-Fi or 4G network to view real-time communication data, alarm information, and system operating status, as well as to set parameters and issue control commands.

[0040] Based on the above ideas, this application first provides a laser cutting control circuit, such as... Figure 1 As shown, the laser cutting control circuit includes a processor 10, a laser control unit 20, and a cutting head control unit 30. The processor 10 is electrically connected to both the laser control unit 20 and the cutting head control unit 30. The laser control unit 20 is electrically connected to an external laser A, and the cutting head control unit 30 is electrically connected to multiple control devices of the cutting head B. These multiple control devices may include, but are not limited to, multiple control valves within the cutting head, such as proportional valves and pneumatic valves. The multiple control devices may also include motors that control the movement of the cutting head.

[0041] In the laser cutting control circuit designed above, the processor 10 can respond to laser control commands by outputting laser control signals to the laser control unit 20, and can also respond to cutting head control commands by outputting cutting head control signals to the cutting head control unit 30. In one possible implementation, the laser control commands and cutting head control commands can be obtained by being sent to the processor 10 from an external device. In another possible implementation, the laser control commands and cutting head control commands can be pre-programmed and stored in the processor 10's memory. When controlling the laser A and the cutting head, the processor 10 can obtain the laser control commands and cutting head control commands by accessing the memory. Specifically, the laser control commands may include the laser's switching power, duty cycle, frequency, asymptotic time setting, center offset, and spot welding time, etc., while the cutting head control commands may include the on / off control signals of the cutting head's proportional valve and air pressure valve, the height signal between the cutting head and the workpiece, the target height signal between the cutting head and the workpiece, etc.

[0042] The laser control unit 20 responds to the laser control signal and controls the laser A to perform the laser execution action corresponding to the laser control command; the cutting head control unit 30 responds to the cutting head control signal and controls multiple controllers of the cutting head to perform the execution action corresponding to the cutting head control command.

[0043] The process by which the processor 10 generates control signals based on control instructions can adopt conventional processing procedures. For example, the control instructions are decoded, and then internal calculations are performed on the decoded control instructions. Finally, control signals are generated based on the execution results of the instructions. For example, assuming that the laser control signal described above is a laser power control signal, the purpose of which is to control the maximum power value of the laser to the target power value, in this case, the processor 10 sends the laser power control signal to the laser control unit 20 according to the laser control instructions, so that the laser control unit 20 controls the maximum output power of the laser to maintain within the target power value range based on the laser power control signal.

[0044] The laser cutting control circuit designed above integrates functional units such as the laser control unit and the cutting head control unit onto a single control board via a processor. This results in a laser cutting control circuit that is small in size, simple in structure, and inexpensive in components, thereby reducing the cost and size of the laser cutting control circuit.

[0045] In an optional implementation of this embodiment, such as Figure 2 As shown, the cutting head control unit 30 designed in this scheme may include a cutting head valve control subunit 310, which is electrically connected to the processor 10 and electrically connected to the cutting head valve B1 of the cutting head B.

[0046] In the above-described implementation, the processor 10 can send a valve control signal to the cutting head valve control subunit 310 in response to a cutting head control command. The cutting head valve control subunit 310 can then control the cutting head valve to perform a corresponding valve opening / closing action in response to the valve control signal. Specifically, for example, the processor 10 can send a proportional valve opening signal to the cutting head valve control subunit 310 in response to a cutting head control command. The cutting head valve control subunit 310 then controls the proportional valve to perform a valve opening action in response to the proportional valve opening signal.

[0047] In an optional implementation of this embodiment, such as Figure 2 As shown, the cutting head control unit 30 designed in this scheme may also include a sensor acquisition subunit 320 and a motor motion control subunit 330. Both the sensor acquisition subunit 320 and the motor motion control subunit 330 are electrically connected to the processor 10. The motor motion control subunit 330 is used to electrically connect to the motor B2 of the cutting head B.

[0048] In the above-described implementation, the sensor acquisition subunit 320 can acquire the height value of the cutting head B from the workpiece, then convert the height value into a height signal and transmit it to the processor 10. Specifically, the sensor acquisition subunit 320 can employ a sensing device, such as a capacitive sensor. Changes in the height of the cutting head B relative to the workpiece cause changes in the capacitance value of the capacitive sensor, and the height value of the cutting head B relative to the workpiece is obtained based on the capacitance value of the capacitive sensor. Alternatively, the sensor acquisition subunit 320 can also employ an infrared sensor or other sensor that measures the height distance between the cutting head B and the workpiece.

[0049] When the processor 10 receives the height signal transmitted by the sensor acquisition subunit 320, the processor 10 can calculate the movement distance of the cutting head B based on the height signal and the pre-configured target position signal of the cutting head, and then send a motion control signal to the motor motion control subunit 330 based on the movement distance, so that the motor motion control subunit 330 controls the motor B2 to move based on the motion control signal, so that the cutting head B moves to the target position.

[0050] In the above implementation, this solution uses a sensor acquisition subunit and a motor motion control subunit to adjust the position of the cutting head and the workpiece. It also uses a cutting head valve control subunit to control the valve in the cutting head, thus making the designed laser cutting control circuit feature-rich and easy to control.

[0051] In an optional implementation of this embodiment, such as Figure 3 As shown, the processor 10 designed in this scheme may include a controller 110 and a memory 120. The controller 110 is electrically connected to the laser control unit 20 and the cutting head control unit 30, respectively, and the memory 120 is electrically connected to the controller 110.

[0052] In the above embodiment, the memory 120 pre-programs and stores laser control instructions and cutting head control instructions. For example, the maximum operating power of the laser and the spot welding time of the laser are pre-programmed and stored in the memory 120. When the controller 110 controls the laser and the cutting head, the controller 110 can obtain the laser control instructions and cutting head control instructions from the memory 120. Specifically, in this solution, the address allocation of the laser control instructions and cutting head control instructions in the memory 120 is fixed. The controller 110 can directly generate the corresponding addresses of the laser control instructions and cutting head control instructions according to the program requirements. The controller sends a read request to the memory based on the generated address. The memory outputs the data in the corresponding storage unit to the data bus according to the requested address. The controller then obtains these data from the data bus, thereby obtaining the laser control instructions and cutting head control instructions.

[0053] In the above implementation, the laser control instructions and cutting head control instructions are pre-stored in the processor's memory, thereby enabling the laser cutting control circuit designed in this solution to achieve laser cutting control in an offline manner, and thus to be applied in offline scenarios, improving the adaptability and convenience of the designed laser cutting control circuit.

[0054] In an optional implementation of this embodiment, as another possible implementation, such as Figure 4 As shown, the laser cutting control circuit designed in this scheme may also include an instruction forwarding unit 40, which is communicatively connected to the processor 10.

[0055] In the above-described implementation, the instruction forwarding unit 40 can receive laser control instructions and cutting head control instructions issued by the user, and then the instruction forwarding unit 40 can forward the laser control instructions and cutting head control instructions to the processor 10. This allows the laser cutting control circuit designed in this scheme to improve the real-time processing capability of the laser cutting control circuit designed in this scheme by having the user issue control instructions online in real time.

[0056] In an optional implementation of this embodiment, such as Figure 5 As shown, the instruction forwarding unit 40 designed in this scheme may include a communication subunit 410. The processor 10 communicates with the host computer C through the communication subunit 410. In this way, the user can input laser control instructions and cutting head control instructions on the host computer C, and then the host computer C forwards the laser control instructions and cutting head control instructions transmitted by the host computer C to the processor 10 through the communication subunit 410. Specifically, the communication subunit 410 can adopt wired communication or wireless communication. For example, if the communication subunit 410 adopts wired communication, it can adopt a universal asynchronous transceiver, universal serial bus, network cable, CAN bus, etc., so that the host computer C and the processor 10 communicate through serial port wired communication. Alternatively, the communication subunit 410 can also adopt a wireless unit such as WIFI or Bluetooth, so that the host computer C and the processor 10 communicate through wireless communication. The specific method adopted can be adapted to the actual application scenario.

[0057] In an optional implementation of this embodiment, such as Figure 5As shown, the instruction forwarding unit 40 designed in this scheme may further include a display driver subunit 420. The processor 10 is electrically connected to an external display touchpad D through the display driver subunit 420. In this way, the user can input laser control commands and cutting head control commands on the display touchpad D by operating the display screen. Then, the display touchpad D forwards the laser control commands and cutting head control commands transmitted by the display touchpad D to the processor 10 through the display driver subunit 420. Among them, the display driver subunit 420 acts as a bridge between the processor and the display screen. In addition to converting the display data of the processor to drive the display screen to display the image, it also needs to process feedback information from the display screen. For example, many modern displays (such as touch screens) have the function of sensing user operations, and the display driver unit is capable of collecting this operation information and transmitting it back to the processor for further processing. The display driver subunit 420 can be any of the following: a touch screen controller chip, a graphics card with haptic feedback function, etc. For example, when the display driver subunit 420 is a graphics card with haptic feedback function, the display driver subunit 420 can receive graphics data from the processor 10, render and process the data through its powerful graphics processing capabilities, and then transmit the processed image data to the display screen for display through an output interface (such as HDMI, DisplayPort, etc.). When the display screen is a touch screen, the display driver subunit 420 can communicate with the touch screen controller through a specific interface, receive operation data from the touch screen, and transmit it to the processor.

[0058] In an optional implementation of this embodiment, such as Figure 6 As shown, the processor 10 designed in this scheme may further include an analog signal generation subunit 130 and a pulse signal generation subunit 140. The controller 110 is electrically connected to the cutting head control unit 30 and the laser control unit 20 through the analog signal generation subunit 130 and the pulse signal generation subunit 140. The analog signal generation subunit 130 is used to transmit analog signals, and the pulse signal generation subunit 140 is used to transmit pulse signals. Specifically, the analog signal generation subunit 130 can be a function generator or signal generator, or other devices capable of generating analog signals. The pulse signal generation subunit 140 can be a programmable logic device (FPGA) or a pulse generator chip, or other devices capable of generating various types of pulse signals. The specific device type used can be adapted to the actual application scenario, and this scheme does not limit this.

[0059] In some cases, the control of the cutting head or laser in this embodiment requires not only analog signals but also pulse signals for adjustment. Specifically, for example, this embodiment needs to control not only the maximum operating power of the laser but also dynamically adjust the operating power of the laser. In this case, the controller 110 can send a power control analog signal to the laser control unit 20 through the analog generation subunit 130. The controller 110 can also send a pulse control signal with a target duty cycle to the laser control unit 20 through the pulse generation subunit 140. In this way, the laser control unit 20 controls the maximum operating power of the laser according to the power control analog signal and dynamically adjusts the operating power of the laser according to the pulse control signal with the target duty cycle.

[0060] In the above implementation, this solution uses an analog generator subunit to control the laser and the cutting head with analog quantities, and uses a pulse generator subunit to dynamically adjust the analog quantities, thereby expanding the control function of the designed laser cutting control circuit.

[0061] In an optional implementation of this embodiment, such as Figure 7 As shown, the laser cutting control circuit designed in this scheme can also include a digital connection unit 50. Both the laser control unit 20 and the cutting head control unit 30 are electrically connected to the processor 10 through the digital connection unit 50. Thus, the digital connection unit 50 can receive the laser status signal fed back from the laser control unit 20, and can also receive the status signals of various control devices fed back from the cutting head control unit 30. The digital connection unit 50 can transmit the received laser status signal and the status signals of various control devices of the cutting head to the processor 10, so that the processor 10 can display the laser status signal and the status signals of various control devices of the cutting head on the display touch screen D through the display driver subunit 420. This allows the operator to observe the working status of the laser and the cutting head through the display touch screen D, thereby improving the reliability of the laser cutting control circuit. Specifically, the digital connection unit 50 can be any device that can realize digital signal input and output functions, such as a 74-system logic chip, a CD4000 system chip, or a programmable digital I / O module chip, etc.

[0062] In an optional implementation of this embodiment, such as Figure 8As shown, the laser cutting control circuit designed in this scheme also includes a power supply unit 60. The power supply unit 60 is electrically connected to the processor 10, the laser control unit 20, the cutting head control unit 30, and the display driver subunit 420, respectively, thereby supplying power to these device units. Specifically, the power supply unit 60 can be any of the power supplies currently compatible with the processor. It can specifically adopt a 12V power supply + step-down circuit structure, thereby reducing the power supply voltage to the rated operating voltage of the processor 10 through the step-down circuit. Alternatively, it can adopt a power supply + power management integrated chip form, thereby realizing voltage regulation, current control, power sequencing, battery management, etc.

[0063] In an optional embodiment of this solution, the digital connection unit 50 can also be connected to an external heat dissipation unit E. The heat dissipation unit E can be a water-cooling device, a fan, or other heat dissipation equipment. The heat dissipation unit can be electrically connected to the digital connection unit 50 designed in this solution, so that the heat dissipation unit can provide a good heat dissipation effect for the operation of the control card system.

[0064] In an optional implementation of this embodiment, such as Figure 8 As shown, this solution can also be equipped with a wireless communication unit 70. The processor 10 can wirelessly connect to a mobile phone through the wireless communication unit 70. In this way, it can connect to a mobile APP via Wi-Fi or 4G network to view real-time communication data, alarm information and system working status, and set parameters and issue control commands.

[0065] This application also provides a laser cutting control system, which includes the laser cutting control circuit of any of the optional embodiments described above.

[0066] The laser cutting control system designed above includes the laser cutting control circuit described above. Therefore, the laser cutting control system integrates functional units such as the laser control unit and the cutting head control unit onto a single control board via a processor. This results in a laser cutting control circuit that is small in size, simple in structure, and inexpensive in components, thereby reducing the cost and size of the laser cutting control circuit.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A laser cutting control circuit, characterized in that, include: Processor, laser control unit, and cutting head control unit; The processor is electrically connected to both the laser control unit and the cutting head control unit. The laser control unit is used to electrically connect to the laser, and the cutting head control unit is used to electrically connect to multiple control devices of the cutting head. The processor is used to output a laser control signal to the laser control unit in response to a laser control command; In addition, in response to the cutting head control command, a cutting head control signal is output to the cutting head control unit; The laser control unit is used to respond to the laser control signal and control the laser to perform the laser execution action corresponding to the laser control command; The cutting head control unit is used to respond to the cutting head control signal and control multiple controllers of the cutting head to execute the actions corresponding to the cutting head control command.

2. The laser cutting control circuit according to claim 1, characterized in that, The cutting head control unit includes a sensor acquisition subunit and a motor motion control subunit; Both the sensor acquisition subunit and the motor motion control subunit are electrically connected to the processor, and the motor motion control subunit is used to electrically connect to the motor of the cutting head; The sensor acquisition subunit is used to acquire the height value of the distance between the cutting head and the workpiece being cut, and convert the height value into a height signal and transmit it to the processor. The processor is used to transmit motion control signals to the motor motion control subunit in response to the height signal and the cutting head target position signal; The motor motion control subunit is used to control the motor motion of the cutting head in response to the motion control signal, so that the cutting head moves to the target position.

3. The laser cutting control circuit according to claim 2, characterized in that, The cutting head control unit also includes a cutting head valve control subunit; The cutting head valve control subunit is electrically connected to the processor, and the cutting head valve control subunit is used to electrically connect to the cutting head valve of the cutting head; Specifically, the processor is used to send a valve control signal to the cutting head valve control subunit in response to the cutting head control command; The cutting head valve control subunit is used to respond to the valve control signal and control the cutting head valve to perform the corresponding valve opening and closing action.

4. The laser cutting control circuit according to claim 1, characterized in that, The processor includes a controller and a memory; The controller is electrically connected to both the laser control unit and the cutting head control unit, and the memory is electrically connected to the controller. The memory is used to store the laser control commands and the cutting head control commands; The controller is used to retrieve the laser control instructions and the cutting head control instructions from the memory.

5. The laser cutting control circuit according to claim 1, characterized in that, The laser cutting control circuit further includes an instruction forwarding unit; the instruction forwarding unit is communicatively connected to the processor. The instruction forwarding unit is used to forward the laser control instructions and the cutting head control instructions to the processor.

6. The laser cutting control circuit according to claim 5, characterized in that, The instruction forwarding unit includes a communication subunit; the processor communicates with the host computer through the communication subunit. The communication subunit is used to receive laser control commands and cutting head control commands issued by the host computer, and forward the laser control commands and cutting head control commands to the processor.

7. The laser cutting control circuit according to claim 5, characterized in that, The instruction forwarding unit includes a display driver subunit; the processor is electrically connected to the display touchscreen through the display driver subunit. The display driver subunit is used to receive laser control commands and cutting head control commands issued by the display touch device, and forward the laser control commands and cutting head control commands to the processor.

8. The laser cutting control circuit according to claim 7, characterized in that, The laser cutting control circuit also includes a digital connection unit; both the laser control unit and the cutting head control unit are electrically connected to the processor through the digital connection unit. The digital connection unit is used to receive the laser status signal fed back by the laser control unit and the status signals of each control device fed back by the cutting head control unit, and transmit the laser status signal and the status signals of each control device of the cutting head to the processor. The processor is also used to display the laser status signal and the status signals of each control device of the cutting head on the display touch device through the display driver subunit.

9. The laser cutting control circuit according to claim 1, characterized in that, The laser cutting control circuit also includes a power supply unit; the power supply unit is electrically connected to the processor, the laser control unit and the cutting head control unit respectively.

10. A laser cutting control system, characterized in that, The laser cutting control system includes the laser cutting control circuit according to any one of claims 1-9.

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