Handheld laser welding equipment, control method thereof and handheld laser welding control panel

Abstract

The invention relates to the technical field of laser welding, and discloses handheld laser welding equipment, a control method of the handheld laser welding equipment and a handheld laser welding control panel. The handheld laser welding equipment comprises a handheld laser welding control panel and welding equipment. The welding equipment comprises a laser, a wire feeder, a handheld welding gun head and a heat dissipation device. The handheld laser welding control panel comprises a main controller, a laser external control interface, a wire feeder interface, a handheld welding gun head interface and a heat dissipation device interface; the main controller controls and monitors the laser device, the wire feeder, the handheld welding gun head and the heat dissipation device through the laser device external control interface, the wire feeder interface, the handheld welding gun head interface and the heat dissipation device interface, so that the integration degree of the handheld laser welding equipment is high, and the welding equipment integrates the heat dissipation device; the handheld laser welding control panel integrates unified control and monitoring of the heat dissipation device, and the stability and reliability of long-time operation of handheld laser welding equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and in particular to a handheld laser welding device and a control method thereof, and a handheld laser welding control panel. Background Art

[0002] Laser welding technology is a laser material processing technology. It can use existing laser welding equipment to weld any part and angle of the workpiece to achieve precise marking, cutting or engraving. It is widely used in laser processing fields such as welding, cutting, marking or engraving.

[0003] Handheld laser welding has become a new trend in the welding market because of its small heat-affected zone, non-deformation of plates, fine welds, deep and strong molten pools, good molten pool uniformity and consistency, small restrictions on welding materials, and wide application range.

[0004] At present, in the handheld laser welding equipment on the market, each welding component is independently equipped with a control board, and each is independently controlled by the controller in each control board. For example, the monitoring and light control of the laser are completed by the laser controller, the control of the wire feeder is completed by the wire feeder controller, and the control and monitoring of the handheld welding gun head are also realized by an independent MCU (Micro Control Unit). The independent control of the welding components by their respective controllers makes the whole handheld laser welding equipment not highly integrated, and makes its electronic control system very complicated. The communication between the controllers causes the system to have low real-time performance and long communication cycle. The signal is easy to cause interference during the transmission of the equipment. The stability of the equipment is not high, which will affect the use experience of the product under complex working conditions. In addition, since the handheld laser welding equipment will become hot after working for a long time, the poor heat dissipation causes the poor stability and reliability of the handheld laser welding equipment, so that the laser is not allowed to perform welding operations continuously, and an external air cooling system or air-conditioned room is required to assist the heat dissipation of the handheld laser welding equipment, resulting in a large footprint of the handheld laser welding equipment and high cost of use. Summary of the invention

[0005] The embodiments of the present invention aim to provide a handheld laser welding device and a control method thereof, and a handheld laser welding control board, which can solve the problems of the existing handheld laser welding device, that is, each welding component is independently controlled by its own control board, so that the integration of the entire handheld laser welding device is not high, and the handheld laser welding device has poor heat dissipation due to long-term operation, resulting in poor stability and reliability of the operation of the handheld laser welding device.

[0006] In order to solve the above technical problems, the first aspect of the present invention provides a handheld laser welding device, including a handheld laser welding control panel and a welding device, wherein:

[0007] The welding equipment includes a laser, a wire feeder, a handheld welding gun head and a heat dissipation device;

[0008] The handheld laser welding control panel includes a main controller, a laser external control interface, a wire feeder interface, a handheld welding gun head interface and a heat sink interface. The main controller is communicated with the laser, the wire feeder, the handheld welding gun head and the heat sink through the laser external control interface, the wire feeder interface, the handheld welding gun head interface and the heat sink interface, respectively, to achieve control and monitoring of the laser, the wire feeder, the handheld welding gun head and the heat sink.

[0009] Optionally, the welding equipment further includes a shielding gas valve, the handheld laser welding control panel further includes a shielding gas interface, and the main controller is communicatively connected with the shielding gas valve via the shielding gas interface to control the shielding gas valve.

[0010] Optionally, the welding equipment also includes a LOOP safety lock, which connects the workpiece and the handheld welding gun head. The main controller is communicatively connected to the LOOP safety lock to control the LOOP safety lock. When the handheld welding gun head is in contact with the workpiece, the main controller allows the laser to emit light normally. When the handheld welding gun head is not in contact with the workpiece, the main controller does not allow the laser to emit light.

[0011] Optionally, the heat dissipation device includes an air-cooled heat dissipation fan, the heat dissipation device interface includes a heat dissipation fan sub-interface, the heat dissipation fan sub-interface includes a fan enable sub-interface and an H-bridge MOS drive sub-interface, and the main controller includes a sixth general input and output pin and a second timer, wherein:

[0012] The sixth general purpose input / output pin is connected to the fan enable sub-interface, and the main controller is connected to the air-cooling heat dissipation fan through the sixth general purpose input / output pin and the fan enable sub-interface to realize switch control of the air-cooling heat dissipation fan;

[0013] The second timer is connected to the H-bridge MOS driver sub-interface, and the main controller is connected to the air-cooled heat dissipation fan row through the second timer and the H-bridge MOS driver sub-interface to achieve speed control of the air-cooled heat dissipation fan.

[0014] Optionally, the heat dissipation device further includes a refrigerant heat dissipation system, the heat dissipation device interface further includes a refrigerant heat dissipation system sub-interface, the refrigerant heat dissipation system sub-interface includes a refrigerant enable sub-interface and a third RS485 communication sub-interface, the main controller includes a seventh general purpose input and output pin and a fifth general asynchronous receiver and transmitter pin, wherein:

[0015] The seventh general input / output pin is connected to the refrigerant enabling sub-interface, and the main controller is connected to the refrigerant cooling system through the seventh general input / output pin and the refrigerant enabling sub-interface to realize switch control of the refrigerant cooling system;

[0016] The fifth universal asynchronous receiver and transmitter pin is connected to the third RS485 communication sub-interface, and the main controller establishes a serial communication connection with the refrigerant cooling system through the fifth universal asynchronous receiver and transmitter pin and the third RS485 communication sub-interface to achieve cooling mode and temperature control of the refrigerant cooling system.

[0017] Optionally, when the main controller obtains that the output power of the laser is lower than the preset output power, the main controller does not start the air-cooling heat dissipation fan for heat dissipation; when the temperature of the laser exceeds a first preset temperature, the main controller outputs a fan enable signal through the sixth general input / output pin to the air-cooling heat dissipation fan via the fan enable sub-interface, and starts the air-cooling heat dissipation fan for heat dissipation. At the same time, the main controller outputs a timing control signal through the second timer to the H-bridge MOS driver via the H-bridge MOS driver sub-interface, and controls the speed of the air-cooling heat dissipation fan through the H-bridge MOS driver;

[0018] When the main controller obtains that the temperature of the laser exceeds the second preset temperature, the main controller outputs a refrigerant enable signal through the seventh general input / output pin to the refrigerant cooling system via the refrigerant enable sub-interface, thereby starting the refrigerant cooling system for heat dissipation. At the same time, the main controller reads the status and alarm information of the refrigerant cooling system through the serial port communication connection, and controls the cooling mode and temperature of the refrigerant cooling system, wherein the second preset temperature is greater than the first preset temperature.

[0019] Optionally, the handheld laser welding device further includes a human-computer interaction device for realizing human-computer interaction with a user so that the user can set parameter configurations of the welding device;

[0020] The handheld laser welding control panel also includes a UI communication interface, and the main controller is connected to the human-computer interaction device through the UI communication interface to receive parameter configurations of the welding device set by the user through the human-computer interaction device.

[0021] Optionally, the handheld laser welding control board also includes an external intrusion detection circuit, which is communicatively connected to the laser and the main controller respectively, and is used to detect whether the board of the laser is illegally disassembled. When it is detected that the board of the laser is disassembled, a feedback signal is sent to the main controller, so that the main controller issues a clear data instruction to clear the sensitive data stored inside the laser, including the welding expert process library.

[0022] Correspondingly, the second aspect embodiment of the present invention provides a handheld laser welding control board, which is applied to the handheld laser welding equipment described in the first aspect embodiment of the present invention, the handheld laser welding control board integrates multiple types of interfaces of the welding equipment, and is communicated and connected with the welding components of the welding equipment through the integrated multiple types of interfaces to achieve control and monitoring of the welding components of the welding equipment; the handheld laser welding control board is communicated and connected with the human-computer interaction device, receives the welding component parameter configuration of the welding equipment set by the user through the human-computer interaction device, and sends the parameter configuration to the corresponding welding component of the welding equipment.

[0023] Accordingly, the third aspect of the present invention provides a handheld laser welding equipment control method, which is applied to the handheld laser welding equipment described in the first aspect of the present invention. The handheld laser welding equipment control method includes:

[0024] The main controller reads the welding process parameters sent by the human-machine interaction device, and uploads the status and alarm of the welding equipment to the human-machine interaction device;

[0025] Based on the welding process parameters issued, the main controller controls the laser to execute the welding process parameters;

[0026] The main controller obtains the temperature inside the laser collected by the temperature and humidity sensor of the board built into the laser, and based on the obtained temperature of the laser, controls and monitors the heat dissipation device;

[0027] The main controller detects the external light control command to control the laser to output laser.

[0028] Compared with the prior art, the present invention provides a handheld laser welding device and a control method thereof, and a handheld laser welding control board. The handheld laser welding device includes a handheld laser welding control board and a welding device, wherein: the welding device includes a laser, a wire feeder, a handheld welding gun head and a heat dissipation device; the handheld laser welding control board includes a main controller, a laser external control interface, a wire feeder interface, a handheld welding gun head interface and a heat dissipation device interface. The main controller is communicated with the laser, the wire feeder and the handheld welding gun head through the laser external control interface, the wire feeder interface, the handheld welding gun head interface and the heat dissipation device interface, respectively, to realize control and monitoring of the laser, the wire feeder, the handheld welding gun head and the heat dissipation device. Therefore, unified control and monitoring of the laser, wire feeder, handheld welding gun head and heat dissipation device are integrated in the handheld laser welding equipment, with high integration, and the main controller is used to uniformly control and monitor the laser, wire feeder and handheld welding gun head. The laser, wire feeder and handheld welding gun head no longer need to be individually controlled by their own independent control panels, making the electronic control system of the entire handheld laser welding equipment very simple, with low material BOM cost, high real-time communication and short communication cycle between the main controller and the laser, wire feeder and handheld welding gun head, and the signal is not easy to cause interference during the transmission of the equipment. The equipment has high stability and reliability, and the product experience is improved in complex working conditions. In addition, the welding equipment is integrated with a heat dissipation device, and the handheld laser welding control board is integrated with unified control and monitoring of the heat dissipation device, which can allow the laser to perform welding operations continuously, and there is no need to use an external air cooling system or air-conditioned room to assist in the heat dissipation of the handheld laser welding equipment, so that the handheld laser welding equipment occupies a small area and has a low cost of use, thereby improving the stability and reliability of the handheld laser welding equipment during long-term operation. This can solve the problem that the existing handheld laser welding equipment has low integration because each welding component is independently controlled by its own control board, and the handheld laser welding equipment has poor stability and reliability due to poor heat dissipation during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0030] Figure 1 It is a structural schematic diagram of a handheld laser welding device provided by the present invention;

[0031] Figure 2 It is a detailed structural schematic diagram of a handheld laser welding device provided by the present invention;

[0032] Figure 3It is a structural schematic diagram of a handheld laser welding control board in a handheld laser welding device provided by the present invention;

[0033] Figure 4 It is a flow chart of a control method of a handheld laser welding device provided by the present invention;

[0034] Figure 5 It is a detailed flow chart of a handheld laser welding equipment control method provided by the present invention.

[0035] Description of main component symbols:

[0036] Handheld laser welding equipment 100 Handheld laser welding control board 10 Main controller 11 Laser external control interface 12 Wire feeder interface 13 Handheld welding gun head interface 14U I communication interface 15 Protective gas interface 16 Heat dissipation device interface 17 Cooling fan sub-interface 171 Refrigerant cooling system sub-interface 172 First memory 191

[0037] Second memory 192 Log recording module 193 Real-time clock battery 194 External intrusion detection circuit 195 Ethernet chip 196 Welding equipment 20 Laser 22 Wire feeder 23 Handheld welding gun head 24 LOOP safety lock 25 Protective air valve 26 Heat dissipation device 27 Air-cooled cooling fan 271 Refrigerant cooling system 272 Human-computer interaction device 30 Host computer 31 Mobile terminal 32 Touch screen 33 Knob button 34 Display module 35 Emergency stop button 36 First remote communication module 37 Power switch 38 First general purpose input and output pin GPIO1 Second general purpose input and output pin GPIO2 Third general purpose input and output pin GPIO3 Fourth general purpose input and output pin GPIO4 Fifth general purpose input and output pin GPIO5 Sixth general purpose input and output pin GPIO6 Seventh general purpose input and output pin GPIO7 Eighth general purpose input and output pin GPIO8 Ninth general purpose input and output pin GPIO9 Tenth general purpose input and output pin GPIO10 First digital-to-analog converter pin DAC1 Second digital-to-analog converter pin DAC2 First timer Timer1 Second timer T imer2 first serial peripheral interface pin SPI 1 second serial peripheral interface pin SPI 2 third serial peripheral interface pin SPI 3 first universal asynchronous receiver and transmitter pin UART1 second universal asynchronous receiver and transmitter pin UART2 third universal asynchronous receiver and transmitter pin UART3 fourth universal asynchronous receiver and transmitter pin UART4 fifth universal asynchronous receiver and transmitter pin UART5 sixth universal asynchronous receiver and transmitter pin UART6 first analog-to-digital converter pin ADC1 second analog-to-digital converter pin ADC2 DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "bottom" etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0040] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Laser welding technology is a laser material processing technology. It can use existing laser welding equipment to weld any part and angle of the workpiece to achieve precise marking, cutting or engraving. It is widely used in laser processing fields such as welding, cutting, marking or engraving.

[0042] Laser welding technology is increasingly used in cutting and welding, extending from industrial to civilian applications, replacing traditional arc welding, argon arc welding and other welding methods. Traditional welding methods require companies or enterprises to recruit professional welder technicians with welder qualification certificates, which has high labor costs. In addition, traditional welding methods have high requirements for operating skills. It takes a long time to achieve perfect pendulum welding and fish scale welding effects, and the welding speed is slow and the processing efficiency is low. Traditional welding methods have a large heat-affected zone, so the plate is easy to bend and deform, and the size of the welded workpiece is uneven, and consistency cannot be guaranteed.

[0043] The welds of traditional welding methods are rough and irregular, and secondary processing and polishing are required after welding, which is time-consuming and laborious. In terms of welding quality, handheld laser welding has a small heat-affected zone, the plate is not easily deformed, the weld is fine, the molten pool is deep and strong, the molten pool is uniform and consistent, the material restrictions on welding are small, and the application range is wide. Novices only need a few hours to read the instruction manual to start working. As a result, handheld laser welding has become a new trend in the market.

[0044] At present, each welding component in the handheld laser welding equipment on the market is independently controlled by its own controller. For example, the welding machine realizes human-computer interaction through a touch screen, a mobile phone Bluetooth APP and a button knob, and the control of the welding process is completed in the control box. The monitoring and light control of the laser are completed by the laser controller, the control of the wire feeder is completed by the wire feeder controller, and the control and monitoring of the handheld welding gun head are also realized by an independent MCU (Micro Control Unit). The independent control of the welding component controller makes the entire handheld laser welding equipment electronic control system very complicated, the material BOM (Bill of Material) cost is high, the communication between controllers causes the system to have low real-time performance and long communication cycle, the signal is easy to cause interference during the transmission of the equipment, the stability of the equipment is not high, and it will affect the product experience in complex working conditions. At present, the control board of the laser, the control board of the wire feeder and the control board of the handheld welding gun head are all independently set, and the integration is not high. In addition, since the handheld laser welding equipment will become hot after working for a long time, the poor heat dissipation causes the stability and reliability of the operation of the handheld laser welding equipment to be poor, which does not allow the laser to perform continuous welding operations, and an external air cooling system or air-conditioned room is required to assist in the heat dissipation of the handheld laser welding equipment, resulting in the handheld laser welding equipment occupying a large area and high cost of use.

[0045] To this end, the present invention provides an integrated handheld laser welding device, including a handheld laser welding control board and welding equipment, the welding equipment including a laser, a wire feeder, a handheld welding gun head and a heat dissipation device; by integrating a main controller, a laser external control interface, a wire feeder interface, a handheld welding gun head interface and a heat dissipation device interface on the handheld laser welding control board, the main controller is respectively communicated with the laser, the wire feeder and the handheld welding gun head through the laser external control interface, the wire feeder interface, the handheld welding gun head interface and the heat dissipation device interface, so as to realize control and monitoring of the laser, the wire feeder, the handheld welding gun head and the heat dissipation device. Therefore, unified control and monitoring of the laser, wire feeder, handheld welding gun head and heat dissipation device are integrated in the handheld laser welding equipment, with high integration, and the main controller is used to uniformly control and monitor the laser, wire feeder and handheld welding gun head. The laser, wire feeder and handheld welding gun head no longer need to be individually controlled by their own independent control panels, making the electronic control system of the entire handheld laser welding equipment very simple, with low material BOM cost, high real-time communication and short communication cycle between the main controller and the laser, wire feeder and handheld welding gun head, and the signal is not easy to cause interference during the transmission of the equipment. The equipment has high stability and reliability, and the product experience is improved in complex working conditions. In addition, the welding equipment is integrated with a heat dissipation device, and the handheld laser welding control board is integrated with unified control and monitoring of the heat dissipation device, which can allow the laser to perform welding operations continuously, and there is no need to use an external air cooling system or air-conditioned room to assist in the heat dissipation of the handheld laser welding equipment, so that the handheld laser welding equipment occupies a small area and has a low cost of use, thereby improving the stability and reliability of the handheld laser welding equipment during long-term operation. This can solve the problem that the existing handheld laser welding equipment has low integration because each welding component is independently controlled by its own control board, and the handheld laser welding equipment has poor stability and reliability due to poor heat dissipation during long-term operation.

[0046] In order to facilitate understanding of the above inventive concept of the present invention, the above inventive concept of the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] In one embodiment, Figure 1 As shown, the present invention provides a handheld laser welding device 100, including a handheld laser welding control panel 10 and a welding device 20, wherein:

[0048] The welding device 20 includes a laser 22, a wire feeder 23, a handheld welding gun head 24 and a heat sink 27;

[0049] The handheld laser welding control board 10 includes a main controller 11, a laser external control interface 12, a wire feeder interface 13, a handheld welding gun head interface 14 and a heat sink interface 17. The main controller 11 is respectively connected to the laser 22, the wire feeder 23, the handheld welding gun head 24 and the heat sink 27 through the laser external control interface 12, the wire feeder interface 13, the handheld welding gun head interface 14 and the heat sink interface 17 to realize control and monitoring of the laser 22, the wire feeder 23, the handheld welding gun head 24 and the heat sink 27.

[0050] In this embodiment, a handheld laser welding device is provided, including a handheld laser welding control board and a welding device, wherein: the welding device includes a laser, a wire feeder, a handheld welding gun head and a heat dissipation device; the handheld laser welding control board includes a main controller, a laser external control interface, a wire feeder interface, a handheld welding gun head interface and a heat dissipation device interface, and the main controller communicates with the laser, the wire feeder and the handheld welding gun head through the laser external control interface, the wire feeder interface, the handheld welding gun head interface and the heat dissipation device interface, respectively, to realize control and monitoring of the laser, the wire feeder, the handheld welding gun head and the heat dissipation device. Therefore, unified control and monitoring of the laser, wire feeder, handheld welding gun head and heat dissipation device are integrated in the handheld laser welding equipment, with high integration, and the main controller is used to uniformly control and monitor the laser, wire feeder and handheld welding gun head. The laser, wire feeder and handheld welding gun head no longer need to be individually controlled by their own independent control panels, making the electronic control system of the entire handheld laser welding equipment very simple, with low material BOM cost, high real-time communication and short communication cycle between the main controller and the laser, wire feeder and handheld welding gun head, and the signal is not easy to cause interference during the transmission of the equipment. The equipment has high stability and reliability, and the product experience is improved in complex working conditions. In addition, the welding equipment is integrated with a heat dissipation device, and the handheld laser welding control board is integrated with unified control and monitoring of the heat dissipation device, which can allow the laser to perform welding operations continuously, and there is no need to use an external air cooling system or air-conditioned room to assist in the heat dissipation of the handheld laser welding equipment, so that the handheld laser welding equipment occupies a small area and has a low cost of use, thereby improving the stability and reliability of the handheld laser welding equipment during long-term operation. This can solve the problem that the existing handheld laser welding equipment has low integration because each welding component is independently controlled by its own control board, and the handheld laser welding equipment has poor stability and reliability due to poor heat dissipation during long-term operation.

[0051] In one embodiment, the handheld laser welding control panel 10 includes a laser external control interface 12 , and the main controller 11 is communicatively connected with the laser 22 via the laser external control interface 12 to achieve control and monitoring of the laser 22 .

[0052] Specifically, Figure 3 As shown, the laser external control interface 12 includes an enable light output sub-interface, a power sub-interface, a PWM (Pulse Width Modulation) pulse signal sub-interface, an emergency stop interlock signal sub-interface, and an alarm output sub-interface. The laser external control interface 12 directly drives the pump source to output to the laser 22 through the enable light output sub-interface, the power sub-interface, and the PWM pulse signal sub-interface, detects the external emergency stop interlock signal through the emergency stop interlock signal sub-interface, and outputs the alarm of the laser 22 through the alarm output sub-interface.

[0053] The main controller 11 includes a first general-purpose input / output (GPIO) pin GPIO1, a second general-purpose input / output pin GPIO2, a third general-purpose input / output pin GPIO3, a first digital-to-analog converter (DAC) pin DAC1 and a first timer Timer1, wherein:

[0054] The first general purpose input and output pin GPIO1 is connected to the enable light output sub-interface of the laser external control interface 12. The main controller 11 outputs an enable light output signal or a stop enable light output signal to the laser 22 connected to the enable light output sub-interface through the first general purpose input and output pin GPIO1, so that the laser 22 outputs laser or stops outputting laser. When the output allows the enable light output signal, the laser 22 is enabled to output laser, and when the output stops the enable light output signal, the laser 22 stops outputting laser.

[0055] The second general input and output pin GPIO2 is connected to the emergency stop interlock signal sub-interface of the laser external control interface 12. The main controller 11 detects the external emergency stop interlock signal through the second general input and output pin GPIO2 and the emergency stop interlock signal sub-interface, and when the emergency stop interlock signal is detected, the main controller 11 is controlled to output a stop enable light output signal to stop the laser 22 from outputting laser.

[0056] The third general input and output pin GPIO3 is connected to the alarm output sub-interface of the laser external control interface. The main controller 11 outputs the alarm signal of the laser 22 to the laser 22 connected to the alarm output sub-interface through the third general input and output pin GPIO3, so that the laser 22 outputs the alarm signal.

[0057] The first digital-to-analog converter pin DAC1 is connected to the power sub-interface of the laser external control interface, and is used for the main controller 11 to output a power adjustment signal to the laser 22 connected to the power sub-interface through the first digital-to-analog converter pin DAC1, so that the laser 22 adjusts the output power according to the power adjustment signal, and the power can be adjusted between 0-10V.

[0058] The first timer Timer1 is connected to the PWM pulse signal sub-interface of the laser external control interface 12, and is used for the main controller 11 to output a PWM pulse signal to the laser 22 connected to the PWM pulse signal sub-interface through the first timer Timer1, so that the laser 22 outputs PWM pulses according to the PWM pulse signal.

[0059] It is understandable that the main controller 11 is an integrated circuit chip with signal processing capability. The main controller may be a general-purpose processor, a DSP, or other programmable logic devices, and the general-purpose processor may be a microprocessor or any conventional processor. For example, the main controller 11 is an MCU (Microcontroller Unit) or an FPGA (Field Programmable Gate Array).

[0060] In one embodiment, the main controller 11 is connected to the wire feeder 23 through the wire feeder interface 13 to achieve control and monitoring of the wire feeder 23 .

[0061] Specifically, Figure 3 As shown, the wire feeder interface 13 includes at least one motor drive sub-interface for receiving a SPI (Serial Peripheral Interface) drive signal output by the main controller.

[0062] The main controller 11 includes a first serial peripheral device interface pin SPI 1, and the first serial peripheral device interface pin SPI 1 is connected to the motor drive sub-interface of the wire feeder interface 13. Since the drive of the wire feeder 23 is integrated on the main controller 11 of the handheld laser welding control board 10, the main controller 11 outputs a first SPI drive signal through the first serial peripheral device interface pin SPI 1 to drive the motor drive chip to drive the wire feeder 23, so that the main controller 11 can control the enable switch, running direction and speed of the wire feeder 23.

[0063] For example, Figure 3 As shown, the wire feeder interface 13 includes two motor drive sub-interfaces to form a dual wire feeder interface. Two wire feeders 23 can be connected and driven through the two motor drive sub-interfaces.

[0064] In one embodiment, the main controller 11 is in communication connection with the handheld welding gun head 24 via the handheld welding gun head interface 14 to achieve control and monitoring of the handheld welding gun head 24 .

[0065] Specifically, Figure 3As shown, the handheld welding gun head interface 14 includes a galvanometer drive sub-interface, a first RS485 communication sub-interface (RS485 communication 1) and a safety lock sub-interface.

[0066] The main controller 11 includes a second digital-to-analog converter pin DAC2, a fourth universal asynchronous receiver transmitter (UART) pin UART4 and a fourth general purpose input and output pin GPIO4, wherein:

[0067] The second digital-to-analog converter pin DAC2 is connected to the galvanometer drive sub-interface. The main controller 11 outputs a DAC signal to the galvanometer connected to the galvanometer drive sub-interface through the second digital-to-analog converter pin DAC2 to control the oscillation of the galvanometer.

[0068] The fourth universal asynchronous receiver and transmitter pin UART4 is connected to the first RS485 communication sub-interface. The handheld laser welding control board 10 also includes a galvanometer drive module. The main controller 11 establishes a serial communication connection with the galvanometer drive module connected to the first RS485 communication sub-interface through the fourth universal asynchronous receiver and transmitter pin UART4, and reads the status and alarm of the handheld welding gun head 24 connected to the galvanometer drive module.

[0069] like Figure 2 and Figure 3 As shown, the welding equipment 20 also includes a LOOP safety lock 25, and the main controller 11 of the handheld laser welding control panel 10 is connected to the LOOP safety lock 25 for communication, so as to control the LOOP safety lock 25. The LOOP safety lock 25 is also connected to the workpiece and the handheld welding gun head 24, and the LOOP safety lock 25 plays a role of safety protection. The main controller 11 can only allow the laser 22 to emit light normally when the welding wire of the handheld welding gun head 24 must be in contact with the workpiece. When the handheld welding gun head 24 is not in contact with the workpiece, the main controller 11 does not allow the laser 22 to emit light, thereby playing a role of safety protection.

[0070] Specifically, the fourth general input and output pin GPIO4 is connected to the safety lock sub-interface, and the main controller 11 is connected to the LOOP safety lock 25 through the fourth general input and output pin GPIO4 and the safety lock sub-interface, and detects the signal of the LOOP safety lock 25 welded to the safety lock sub-interface, and obtains the safety lock signal. After the welding wire of the handheld welding gun head 24 contacts the workpiece, the LOOP safety lock 25 will be triggered to release. At this time, the main controller 11 detects the signal of the LOOP safety lock 25 through the fourth general input and output pin GPIO4 and the safety lock sub-interface, and obtains the safety lock signal. At this time, when the main controller 11 detects the signal of the LOOP safety lock 25, the main controller 11 outputs the enable light output signal to the laser 22 through the first general input and output pin GPIO1, and the laser 22 outputs the laser; when the main controller 11 does not detect the signal of the LOOP safety lock 25, the main controller 11 outputs the stop enable light output signal to the laser 22 through the first general input and output pin GPIO1, and the laser 22 stops outputting the laser.

[0071] In some optional embodiments, when the spatial positions of the handheld welding gun head 24 and the laser 22 are far apart, a separate controller may be provided inside the handheld welding gun head 24 for communication and interaction between the main controller 11 and the handheld welding gun head 24 .

[0072] In the prior art, since handheld laser welding equipment will become hot after working for a long time, the laser is not allowed to perform welding operations continuously, and an external air cooling system or air-conditioned room is required to assist in the heat dissipation of the handheld laser welding equipment, resulting in the handheld laser welding equipment occupying a large area and having high usage costs.

[0073] To this end, in one embodiment, Figures 1 to 3 As shown, the welding equipment 20 includes a heat sink 27, the handheld laser welding control panel 10 includes a heat sink interface 17, and the main controller 11 is communicated with the heat sink 27 via the heat sink interface 17 to achieve control and monitoring of the heat sink 27. The heat sink 27 can achieve heat dissipation for the laser pump source, optical fiber and main controller.

[0074] Specifically, Figure 3 As shown, the heat dissipation device 27 includes an air-cooled heat dissipation fan 271 to achieve heat dissipation for the laser pump source, optical fiber and main controller.

[0075] The handheld laser welding control board 10 includes a heat sink interface 17 , and the heat sink interface 17 includes a cooling fan sub-interface 171 . The main controller 11 is connected to the air-cooled cooling fan 271 through the cooling fan sub-interface 171 to control the air-cooled cooling fan 271 .

[0076] The cooling fan sub-interface 171 includes a fan enable sub-interface and an H-bridge MOS drive sub-interface. The main controller 11 includes a sixth general purpose input and output pin GPIO6 and a second timer Timer2, wherein:

[0077] The sixth general input and output pin GPIO6 is connected to the fan enable sub-interface. The main controller 11 is connected to the air-cooled cooling fan 271 through the sixth general input and output pin GPIO6 and the fan enable sub-interface to realize switch control of the air-cooled cooling fan 271. Specifically, the main controller 11 outputs a fan enable signal through the sixth general input and output pin GPIO6 to the air-cooled cooling fan 271 through the fan enable sub-interface to start the air-cooled cooling fan 271.

[0078] The second timer Timer2 is connected to the H-bridge MOS driver sub-interface, and the main controller 11 is connected to the air-cooled heat dissipation fan 271 through the second timer Timer2 and the H-bridge MOS driver sub-interface to realize the speed control of the air-cooled heat dissipation fan 271. Specifically, the main controller 11 outputs a timing control signal through the second timer Timer2 to the H-bridge MOS driver through the H-bridge MOS driver sub-interface, and controls the speed of the air-cooled heat dissipation fan 271 through the H-bridge MOS driver.

[0079] The board of the laser 22 is equipped with a temperature and humidity sensor, which is used to collect the temperature and humidity inside the laser 22. The main controller 11 is connected to the temperature and humidity sensor through the laser external control interface, and obtains the temperature and humidity inside the laser 22 collected by the temperature and humidity sensor in a timer polling manner.

[0080] When the output power of the laser 22 is lower than the preset output power and in the standby state, the main controller 11 does not output the fan enable signal and does not start the air-cooling heat dissipation fan 271 for heat dissipation. When the main controller 11 obtains that the temperature of the laser 22 exceeds the first preset temperature, the main controller 11 outputs the fan enable signal through the sixth general input and output pin GPIO6 to the air-cooling heat dissipation fan 271 through the fan enable sub-interface, and starts the air-cooling heat dissipation fan 271 for heat dissipation. At the same time, the main controller 11 outputs the timing control signal through the second timer Timer2 to the H-bridge MOS driver through the H-bridge MOS driver sub-interface, and controls the speed of the air-cooling heat dissipation fan 271 through the H-bridge MOS driver. This allows the laser 22 to continuously perform welding operations, and improves the stability and reliability of the long-term operation of the handheld laser welding device 100.

[0081] like Figure 3 As shown, the heat dissipation device 27 also includes a refrigerant heat dissipation system 272 to achieve heat dissipation for the laser pump source, optical fiber and main controller.

[0082] The handheld laser welding control panel 10 includes a heat dissipation device interface 17 , and the heat dissipation device interface 17 includes a refrigerant heat dissipation system sub-interface 172 . The main controller 11 is connected to the refrigerant heat dissipation system 272 through the refrigerant heat dissipation system sub-interface 172 to realize control of the refrigerant heat dissipation system 272 .

[0083] Specifically, the refrigerant cooling system sub-interface 172 includes a refrigerant enabling sub-interface and a third RS485 communication sub-interface (RS485 communication 3). The main controller 11 includes a seventh general purpose input and output pin GPIO7 and a fifth universal asynchronous receiver and transmitter pin UART5, wherein:

[0084] The seventh general input and output pin GPIO7 is connected to the refrigerant enable sub-interface. The main controller 11 is connected to the refrigerant cooling system 272 through the seventh general input and output pin GPIO7 and the refrigerant enable sub-interface to realize switch control of the refrigerant cooling system 272. Specifically, the main controller 11 outputs a refrigerant enable signal through the seventh general input and output pin GPIO7 to the refrigerant enable sub-interface to start the refrigerant cooling system 272.

[0085] The fifth universal asynchronous receiver and transmitter pin UART5 is connected to the third RS485 communication sub-interface. The main controller 11 establishes a serial communication connection with the refrigerant cooling system 272 through the fifth universal asynchronous receiver and transmitter pin UART5 and the third RS485 communication sub-interface to realize the cooling mode and temperature control of the refrigerant cooling system 272. Specifically, the main controller 11 reads the status and alarm information of the refrigerant cooling system 272 through the serial communication connection to control the cooling mode and temperature of the refrigerant cooling system 272.

[0086] When the main controller 11 obtains that the temperature of the laser 22 exceeds the second preset temperature (the second preset temperature is greater than the first preset temperature), even if the air-cooled heat dissipation fan 271 is started to dissipate heat for the laser 22, but it is not enough to keep the laser 22 in a stable working state, the main controller 11 outputs a refrigerant enable signal through the seventh general input and output pin GPIO7 to the refrigerant enable sub-interface to the refrigerant heat dissipation system 272, and starts the refrigerant heat dissipation system 272 to dissipate heat. At the same time, the main controller 11 reads the state and alarm information of the refrigerant heat dissipation system through the serial communication connection, and controls the cooling mode and temperature of the refrigerant heat dissipation system 272. This allows the laser 22 to continuously perform welding operations, and improves the stability and reliability of the long-term operation of the handheld laser welding device 100.

[0087] For example, the refrigerant cooling system 272 is a refrigerant cooling compressor, which realizes the heat dissipation of the laser pump source, optical fiber and main controller.

[0088] In this embodiment, the heat dissipation of the laser pump source, optical fiber and main controller is realized by integrating the heat dissipation device 27 in the welding equipment 20, and the handheld laser welding control board integrates the unified control and monitoring of the heat dissipation device. When the output power of the laser 22 is lower than the preset output power and is in the standby state, the main controller 11 does not output the fan enable signal and does not start the air-cooled heat dissipation fan 271 for heat dissipation. When the main controller 11 obtains that the temperature of the laser 22 exceeds the first preset temperature, the main controller 11 outputs the fan enable signal through the sixth general input and output pin GPIO6 to the air-cooled heat dissipation fan 271 through the fan enable sub-interface, and starts the air-cooled heat dissipation fan 271 for heat dissipation. At the same time, the main controller 11 outputs the timing control signal through the second timer Timer2 to the H-bridge MOS driver through the H-bridge MOS driver sub-interface, and controls the speed of the air-cooled heat dissipation fan 271 through the H-bridge MOS driver. As the laser 22 continues to output laser, the temperature of the laser 22 also increases. When the main controller 11 obtains that the temperature of the laser 22 exceeds the second preset temperature, and the air-cooled heat dissipation fan 271 originally started to dissipate heat for the laser 22 is not enough to keep the laser 22 in a stable working state, the main controller 11 outputs a refrigerant enable signal through the seventh general-purpose input and output pin GPIO7 to the refrigerant enable sub-interface to start the refrigerant cooling system 272. At the same time, the main controller 11 reads the status and alarm information of the refrigerant cooling system 272 through the serial port communication connection established with the refrigerant cooling system 272 through the fifth universal asynchronous receiver and transmitter pin UART5 and the third RS485 communication sub-interface, and controls the cooling mode and temperature of the refrigerant cooling system 272. This allows the laser 22 to perform welding operations continuously without the need for an external air cooling system or air-conditioned room to assist in cooling the handheld laser welding device 100, so that the handheld laser welding device 100 occupies a small area and has a low cost of use, thereby improving the stability and reliability of the handheld laser welding device 100 during long-term operation.

[0089] In one embodiment, Figure 2 As shown, the handheld laser welding device 100 also includes a human-computer interaction device 30 for realizing human-computer interaction with a user so that the user can set parameter configurations of the welding device 20 .

[0090] like Figure 2 and Figure 3 As shown, the handheld laser welding control panel 10 also includes a UI (User Interface) communication interface 15. The main controller 11 is connected to the human-computer interaction device 30 through the UI communication interface 15 to receive the parameter configuration of the welding device 20 set by the user through the human-computer interaction device 30, wherein the parameter configuration includes the welding process parameters of the laser, firmware upgrades, parameter thresholds of the laser, and product software and hardware versions.

[0091] Specifically, the human-computer interaction device 30 includes a host computer 31 . For example, the host computer 31 is a PC host computer.

[0092] The UI communication interface 15 includes an Ethernet sub-interface (Ethernet port), and the handheld laser welding control board 10 also includes an Ethernet chip 196 (PHY chip), and the Ethernet chip 196 is connected to the Ethernet sub-interface. The main controller 11 includes an Ethernet pin ETH, and the Ethernet pin ETH is connected to the Ethernet chip 196. The main controller 11 establishes an Ethernet communication connection with the host computer 31 through the Ethernet pin ETH, the Ethernet chip 196 and the Ethernet sub-interface. The user sets the parameter configuration of the laser 22 in the software of the host computer 31, and the main controller 11 reads the parameter configuration of the laser 22 set by the user through the host computer 31 through the Ethernet communication connection, and sends the parameter configuration of the laser 22 to the laser 22 through the laser external control interface 12; at the same time, the user can also read the status and / or alarm information related to the laser 22 in the main controller 11 through the Ethernet communication connection on the host computer 31.

[0093] The UI communication interface 15 includes an RS232 communication sub-interface. The main controller 11 includes a first universal asynchronous receiver-transmitter pin UART1, and the first universal asynchronous receiver-transmitter pin UART1 is connected to the RS232 communication sub-interface. The main controller 11 establishes a serial communication connection with the host computer 31 through the first universal asynchronous receiver-transmitter pin UART1 and the RS232 communication sub-interface. The user sets the parameter configuration of the laser 22 in the software of the host computer 31, and the main controller 11 reads the parameter configuration of the laser 22 set by the user through the host computer 31 through the serial communication connection, and sends the parameter configuration of the laser 22 to the laser 22 through the laser external control interface 12; at the same time, the user can also read the status and / or alarm information related to the laser 22 in the main controller 11 through the serial communication connection on the host computer 31.

[0094] The human-computer interaction device 30 also includes a mobile terminal 32, and the mobile terminal 32 has a built-in Bluetooth module and an interactive APP. The UI communication interface 15 includes a serial Bluetooth module, and the main controller 11 includes a second universal asynchronous receiver and transmitter pin UART2, and the second universal asynchronous receiver and transmitter pin UART2 is connected to the serial Bluetooth module. The main controller 11 establishes a Bluetooth communication connection with the Bluetooth module of the mobile terminal 32 through the second universal asynchronous receiver and transmitter pin UART2 and the serial Bluetooth module. The user sets the parameter configuration of the laser 22 in the interactive APP in the mobile terminal 32, and the main controller 11 receives and reads the parameter configuration of the laser 22 set by the user through the mobile terminal 32 through the Bluetooth communication connection, and sends the parameter configuration of the laser 22 to the laser 22 through the laser external control interface 12; at the same time, the user can also read the status and / or alarm information related to the laser 22 in the main controller 11 through the Bluetooth communication connection in the interactive APP of the mobile terminal 32.

[0095] The human-computer interaction device 30 also includes a touch screen 33, the UI communication interface 15 includes a second RS485 communication sub-interface (RS485 communication 2), and the main controller 11 includes a third universal asynchronous receiver-transmitter pin UART3, and the third universal asynchronous receiver-transmitter pin UART3 is connected to the second RS485 communication sub-interface. The main controller 11 establishes a serial communication connection with the touch screen 33 through the third universal asynchronous receiver-transmitter pin UART3 and the second RS485 communication sub-interface, and the user sets the parameter configuration of the laser 22 on the touch screen 33. The main controller 11 reads the parameter configuration of the laser 22 set by the user through the touch screen 33 through the serial communication connection, and sends the parameter configuration of the laser 22 to the laser 22 through the laser external control interface 12; at the same time, the user can also read the status and / or alarm information related to the laser 22 in the main controller 11 on the touch screen 33 through the serial communication connection.

[0096] The human-computer interaction device 30 also includes a knob button 34, the UI communication interface 15 includes a knob switch sub-interface, and the main controller 11 includes a first analog-to-digital converter (ADC) pin ADC1, and the first analog-to-digital converter pin ADC1 is connected to the knob switch sub-interface. The main controller 11 is connected to the knob button 34 through the first analog-to-digital converter pin ADC1 and the knob switch sub-interface to achieve control of the knob button 34.

[0097] The knob button 34 is set on the front panel of the handheld laser welding device 100, and is used to set the laser output power of the laser 22 and the wire feeding speed of the wire feeder 23. The knob button 34 includes a knob and a button, and the knob can realize the manual adjustment of the forward and reverse rotation of the wire feeder 23. The buttons include 6 buttons: up, down, left, right, confirm, and exit, which can realize the parameter configuration of the laser output function of the laser 22. Therefore, the analog quantity and PWM pulse parameters are set by the knob button 34, which is convenient for the user to quickly adjust the parameters of the laser 22 and the wire feeder 23 in the handheld laser welding device 100, so that the analog-to-digital converter ADC of the main controller 11 can collect the opening of the knob button 34.

[0098] The human-computer interaction device 30 also includes a display module 35, the UI communication interface 15 includes a digital tube display sub-interface, and the main controller 11 includes an eighth general input and output pin GPIO8, and the eighth general input and output pin GPIO8 is connected to the digital tube display sub-interface. The main controller 11 is connected to the display module 35 through the eighth general input and output pin GPIO8 and the digital tube display sub-interface to realize the control of the display module 35.

[0099] The display module 35 is disposed on the front panel of the handheld laser welding device 100, and is used to display the state alarm information and specific alarm code of the welding device 20. For example, the display module 35 may be a digital tube or an indicator light.

[0100] The human-computer interaction device 30 also includes an emergency stop button 36, the UI communication interface 15 includes an emergency stop button sub-interface, and the main controller 11 includes a ninth general input and output pin GPIO9, and the ninth general input and output pin GPIO9 is connected to the emergency stop button sub-interface. The main controller 11 is connected to the emergency stop button 36 through the ninth general input and output pin GPIO9 and the emergency stop button sub-interface to achieve control of the emergency stop button 36.

[0101] The emergency stop button 36 is arranged on the front panel of the handheld laser welding device 100, so that in the event of an emergency stop due to a fault, the emergency stop button 36 is pressed to generate an emergency stop signal, so that the main controller 11 is forced to shut down the laser 22 to stop the handheld laser welding device 100 from operating. Specifically, in the event of an emergency stop due to a fault, the emergency stop button 36 is pressed to generate an emergency stop signal, and the main controller 11 receives the emergency stop signal generated by the emergency stop button 36 through the ninth general input and output pin GPIO9, and outputs a stop enable light output signal through the first general input and output pin GPIO1 to the laser 22 connected to the enable light output sub-interface, so that the laser 22 stops outputting laser light, thereby achieving the purpose of forcing the main controller 11 to shut down the laser 22 to stop the handheld laser welding device 100 from operating.

[0102] The human-machine interaction device 30 further includes a first remote communication module 37 for realizing a remote communication connection between the human-machine interaction device 30 and the handheld laser welding control panel 10 .

[0103] The UI communication interface 15 includes a second remote communication module (remote communication 2), the second remote communication module is connected to the first remote communication module 37 for remote communication, and the second remote communication module is connected to the main controller 11 for communication. The main controller 11 includes a sixth universal asynchronous receiver-transmitter pin UART6, the sixth universal asynchronous receiver-transmitter pin UART6 is connected to the second remote communication module for communication, and the main controller 11 establishes a remote communication connection with the first remote communication module 37 through the sixth universal asynchronous receiver-transmitter pin UART6 and the second remote communication module.

[0104] The main controller 11 realizes remote management of the laser 22 through a remote communication connection, specifically including: the user sets the parameter configuration of the laser 22 in the software of the upper computer 31, the main controller 11 receives the parameter configuration of the laser 22 set by the user through the upper computer 31 through a remote communication connection, and sends the parameter configuration of the laser 22 to the laser 22 through the laser external control interface 12; at the same time, the user can also read the status and / or alarm information related to the laser 22 in the main controller 11 through the remote communication connection on the upper computer 31. Thus, the main controller 11 realizes remote management of the laser 22 through a remote communication connection. Among them, the remote management of the laser includes: remotely realizing the firmware upgrade, health diagnosis, monitoring of the equipment status and alarm information, and encryption and decryption operations of the laser, and remotely and intelligently setting the parameter threshold of the laser, the product software and hardware version, and the tracing of the problem points of the whole machine.

[0105] For example, the first remote communication module 37 can be a 4G remote communication module or a 5G remote communication module. The second remote communication module can be a 4G remote communication module or a 5G remote communication module.

[0106] The human-computer interaction device 30 also includes a power switch 38 to control the power supply of the laser 22. The UI communication interface 15 includes a power control sub-interface, and the main controller 11 includes a tenth general input and output pin GPIO10, and the tenth general input and output pin GPIO10 is connected to the power control sub-interface. The main controller 11 is connected to the power switch 38 through the tenth general input and output pin GPIO10 and the power control sub-interface to control the power switch 38.

[0107] The power switch 38 is arranged on the front panel of the handheld laser welding device 100 to realize the power control of the laser 22. Specifically, the power switch 38 is pressed to generate a power switch signal, and the main controller 11 receives the power switch signal generated by the power switch 38 through the tenth general input and output pin GPIO10. The main controller 11 outputs the light-enabling signal or the light-enabling signal to the laser 22 connected to the light-enabling sub-interface through the first general input and output pin GPIO1, so that the laser 22 can output laser or stop outputting laser. When the light-enabling signal is output, the laser 22 can output laser, and when the light-enabling signal is output, the laser 22 can stop outputting laser. Thus, the power switch 38 realizes the purpose of controlling the power of the laser 22.

[0108] The UI communication interface 15 includes an emergency stop button sub-interface, and the main controller 11 includes a ninth general input and output pin GPIO9, which is connected to the emergency stop button sub-interface. The main controller 11 is connected to the emergency stop button 36 through the ninth general input and output pin GPIO9 and the emergency stop button sub-interface to control the emergency stop button 36.

[0109] The emergency stop button 36 is arranged on the front panel of the handheld laser welding device 100, so that in the event of an emergency stop due to a fault, the emergency stop button 36 is pressed to generate an emergency stop signal, so that the main controller 11 is forced to shut down the laser 22 to stop the handheld laser welding device 100 from operating. Specifically, in the event of an emergency stop due to a fault, the emergency stop button 36 is pressed to generate an emergency stop signal, and the main controller 11 receives the emergency stop signal generated by the emergency stop button 36 through the ninth general input and output pin GPIO9, and outputs a stop enable light output signal through the first general input and output pin GPIO1 to the laser 22 connected to the enable light output sub-interface, so that the laser 22 stops outputting laser light, thereby achieving the purpose of forcing the main controller 11 to shut down the laser 22 to stop the handheld laser welding device 100 from operating.

[0110] In one embodiment, Figure 2 and Figure 3 As shown, the welding equipment 20 also includes a shielding gas valve 26 , and the handheld laser welding control panel 10 also includes a shielding gas interface 16 . The main controller 11 is communicatively connected with the shielding gas valve 26 via the shielding gas interface 16 to control the shielding gas valve 26 .

[0111] Specifically, the protective gas interface 16 includes an air pressure detection sub-interface and a relay switch sub-interface, the main controller 11 includes a second analog-to-digital converter pin ADC2 and a fifth general input and output pin GPIO5, the second analog-to-digital converter pin ADC2 is connected to the air pressure detection sub-interface, and the main controller 11 establishes a connection with the protective gas valve 26 through the second analog-to-digital converter pin ADC2 and the air pressure detection sub-interface, monitors the air pressure of the protective gas in the protective gas valve 26 in real time, and realizes welding process control.

[0112] In some embodiments, the handheld laser welding control board 10 also includes a pressure sensor, which is respectively connected to the air pressure detection sub-interface and the second analog-to-digital converter pin ADC2. The main controller 11 establishes a connection with the protective gas valve 26 through the second analog-to-digital converter pin ADC2, the pressure sensor and the air pressure detection sub-interface. The pressure sensor collects the air pressure of the protective gas in the protective gas valve 26 in real time, and transmits it back to the main controller 11 through the second analog-to-digital converter pin ADC2, so that the main controller 11 monitors the air pressure of the protective gas in real time to realize welding process control.

[0113] The fifth general input and output pin GPIO5 is connected to the relay switch sub-interface. The main controller 11 establishes a connection with the protective gas valve 26 through the fifth general input and output pin GPIO5 and the relay switch sub-interface to control the opening and closing of the protective gas relay in the protective gas valve 26 to realize the on and off of the protective gas.

[0114] In one embodiment, Figure 3 As shown, the handheld laser welding control board 10 also includes a log recording module 193, which is connected to the main controller 11 for recording RTC time and key process basic configuration mode information, bus communication and data packet capture information, process call information, equipment switch control and status reading information, and RTC usage time. For example, the log recording module 193 can be a TF card memory or an SD card memory.

[0115] The main controller 11 includes a second serial peripheral interface pin SPI 2, and the second serial peripheral interface pin SPI 2 is communicatively connected to the log recording module 193. The main controller 11 establishes an SPI communication connection with the log recording module 193 through the second serial peripheral interface pin SPI 2. The main controller 11 reads the RTC time and key process basic configuration mode information, bus communication and data packet capture information, process call information, equipment switch control and status reading information, and RTC usage duration timing stored in the log recording module 193 through the SPI communication connection.

[0116] In one embodiment, Figure 3As shown, the handheld laser welding control board 10 also includes a first memory 191, which is connected to the main controller 11 for storing welding process parameters and a handheld welding process library. The welding process parameters include at least one parameter: plate material type, thickness, welding method, wire feeding speed, swing speed, laser power, pulse control parameters, and slow rise and fall parameters. For example, the first memory is a Flash memory.

[0117] The main controller 11 includes a third serial peripheral interface pin SPI 3, and the third serial peripheral interface pin SPI 3 is communicatively connected to the first memory 191. The main controller 11 establishes an SPI communication connection with the first memory 191 through the third serial peripheral interface pin SPI 3. The main controller 11 reads the welding process parameters stored in the first memory 191 and / or the welding process parameters in the handheld welding process library through the SPI communication connection.

[0118] In one embodiment, Figure 3 As shown, the handheld laser welding control panel 10 also includes a second memory 192, which is connected to the main controller 11 for storing parameter configuration information of the laser 22, wherein the parameter configuration information of the laser 22 includes at least one information: encryption and decryption information of the laser, alarm threshold setting parameters of the laser, machine model, PN (Part Number), SN (Serial Number), and machine expiration information. For example, the second memory is an EEPROM memory.

[0119] The main controller 11 includes an IIC pin IIC, which is connected to the second memory 192. The main controller 11 establishes an IIC communication connection with the second memory 192 through the IIC pin, and the main controller 11 reads the parameter configuration information of the laser stored in the second memory 192 through the IIC communication connection.

[0120] IIC (Inter-Integrated Circuit Bus), also known as I2C, is a serial communication bus that uses a multi-master-slave architecture. It was developed by Philips in the 1980s to allow motherboards, embedded systems or mobile phones to connect to low-speed peripheral devices.

[0121] In one embodiment, Figure 3 As shown, the handheld laser welding control panel 10 also includes a real-time clock (RTC) battery 194, which is communicatively connected to the main controller 11 and is used to power the real-time clock of the main controller 11 and to record the year, month, day, hour, minute and second of the laser 22.

[0122] The main controller 11 includes an RTC interface, which is connected to a real-time clock battery 194. The real-time clock battery 194 supplies power to the real-time clock of the main controller 11 through the RTC interface, and records the year, month, day, hour, minute, and second of the laser 22. The year, month, day, hour, minute, and second recorded by the RTC real-time clock battery 194 are used for the timestamp recorded by the log recording module 193, the judgment of the encryption time, and the timing judgment of the laser light emission time.

[0123] In one embodiment, Figure 3 As shown, the handheld laser welding control board 10 also includes an external intrusion detection circuit 195, which is respectively connected to the laser 22 and the main controller 11 for communication, and is used to detect whether the board of the laser 22 has been illegally disassembled. When it is detected that the board of the laser 22 has been disassembled, a feedback signal is sent to the main controller 11, so that the main controller 11 issues a clear data instruction to clear the sensitive data stored in the laser 22, including the welding expert process library, to prevent malicious plagiarism and protect the company's intellectual property rights.

[0124] The main controller 11 includes an RTC_AF interface, which is connected to the external intrusion detection circuit 195. The main controller 11 is communicated with the external intrusion detection circuit 195 through the RTC_AF interface. When the main controller 11 receives the feedback signal returned when the external intrusion detection circuit 195 detects that the board of the laser 22 has been illegally disassembled, the main controller 11 issues a clear data instruction to clear the sensitive data stored inside the laser 22, including the welding expert process library, to prevent malicious plagiarism and protect the company's intellectual property rights.

[0125] Based on the same concept, in one embodiment, Figure 3 As shown, the present invention further provides a handheld laser welding control board 10, which is applied to the handheld laser welding equipment 100 described in any of the above embodiments. The handheld laser welding control board 10 integrates multiple types of interfaces of the welding equipment 20, and is communicated and connected with the welding components of the welding equipment 20 through the integrated multiple types of interfaces to realize control and monitoring of the welding components of the welding equipment 20; the handheld laser welding control board 10 is communicated and connected with the human-computer interaction device 30, receives the welding component parameter configuration of the welding equipment 20 set by the user through the human-computer interaction device 30, and sends the welding component parameter configuration of the welding equipment 20 to the corresponding welding component of the welding equipment 20, wherein the welding component of the welding equipment 20 includes one of the following components: a laser, a wire feeder, a handheld welding gun head, a protective gas valve, a LOOP safety lock and a heat dissipation device.

[0126] In this embodiment, the handheld laser welding control board 10 is consistent with the handheld laser welding control board 10 described in any of the above embodiments. The specific structure and function can refer to the handheld laser welding control board 10 described in any of the above embodiments, and will not be repeated here.

[0127] In this embodiment, a handheld laser welding control board is provided and applied to a handheld laser welding device. The handheld laser welding control board includes a main controller, a laser external control interface, a wire feeder interface, a handheld welding gun head interface and a heat sink interface. The main controller communicates with an external laser, wire feeder, handheld welding gun head and heat sink through the laser external control interface, wire feeder interface, handheld welding gun head interface and heat sink interface, respectively, to realize control and monitoring of the laser, wire feeder, handheld welding gun head and heat sink. Therefore, the handheld laser welding control board integrates unified control and monitoring of the laser, wire feeder, handheld welding gun head and heat dissipation device, with high integration, so that the communication between the main controller and the laser, wire feeder and handheld welding gun head is real-time and short, and the signal is not easy to cause interference during transmission. It has high stability and reliability, which improves the product usage experience in complex working conditions. The handheld laser welding control board integrates unified control and monitoring of the heat dissipation device, which can allow the external laser to perform welding operations continuously, and there is no need to use an external air cooling system or air-conditioned room to assist in the heat dissipation of the handheld laser welding control board, which makes the handheld laser welding control board low in cost and improves the handheld laser welding control The stability and reliability of the long-term operation of the board making; and because the main controller is used to uniformly control and monitor the laser, wire feeder and handheld welding gun head, the laser, wire feeder and handheld welding gun head no longer need to be controlled separately by their own independent control panels, making the electronic control system of the handheld laser welding equipment containing the handheld laser welding control panel very simple, with low material BOM cost and low use cost. The handheld laser welding control panel integrates the unified control and monitoring of the heat dissipation device, and there is no need to use an external air cooling system or air-conditioned room to assist the heat dissipation of the handheld laser welding equipment, so that the handheld laser welding equipment occupies a small area and has a low use cost, and improves the stability and reliability of the long-term operation of the handheld laser welding equipment. This can solve the problem that the existing handheld laser welding equipment has low integration due to the independent control of each welding component by its own control panel, and the handheld laser welding equipment has poor heat dissipation after long-term operation, resulting in poor stability and reliability of the handheld laser welding equipment.

[0128] It should be noted that the above-mentioned handheld laser welding control board embodiment and the handheld laser welding equipment embodiment belong to the same concept, and the specific implementation process is detailed in the handheld laser welding equipment embodiment, and the technical features in the handheld laser welding equipment embodiment are correspondingly applicable in the above-mentioned handheld laser welding control board embodiment, which will not be repeated here.

[0129] Based on the same concept, in one embodiment, Figure 4 As shown, the present invention also provides a handheld laser welding equipment control method, which is applied to the handheld laser welding equipment described in any of the above embodiments, and the handheld laser welding equipment control method includes:

[0130] S1. The main controller reads the welding process parameters sent by the human-machine interaction device, and uploads the status and alarm of the welding equipment to the human-machine interaction device. Specifically including:

[0131] The human-computer interaction device includes a host computer. The user sets the parameter configuration of the laser in the software of the host computer. The main controller reads the parameter configuration of the laser 22 set by the user through the host computer 31 through the Ethernet communication connection. The parameter configuration includes the welding process parameters of the laser, firmware upgrade, parameter threshold of the laser and product software and hardware version. The main controller uploads the status and alarm of the laser to the host computer through the Ethernet communication connection.

[0132] The human-computer interaction device includes a mobile terminal with a built-in Bluetooth module and an interactive APP. The user sets the laser parameter configuration in the interactive APP in the mobile terminal. The main controller receives and reads the laser parameter configuration set by the user through the mobile terminal via the Bluetooth communication connection. The parameter configuration includes the laser welding process parameters, firmware upgrades, laser parameter thresholds, and product software and hardware versions. The main controller uploads the laser status and alarms to the interactive APP of the mobile terminal via the Bluetooth communication connection.

[0133] The human-computer interaction device includes a touch screen. The user sets the parameter configuration of the laser on the touch screen. The main controller reads the parameter configuration of the laser set by the user through the touch screen through the serial communication connection. The parameter configuration includes the laser welding process parameters, firmware upgrade, laser parameter threshold and product software and hardware version. The main controller uploads the status and alarm of the laser to the touch screen through the serial communication connection.

[0134] S2. Based on the welding process parameters sent down, the main controller controls the laser to execute the welding process parameters.

[0135] S3. The main controller obtains the temperature inside the laser collected by the temperature and humidity sensor of the board built in the laser, and controls and monitors the heat dissipation device based on the obtained temperature of the laser.

[0136] The main controller integrates unified control and monitoring of the heat dissipation device. When the laser output power is lower than the preset output power and is in standby mode, the main controller does not output a fan enable signal and does not start the air-cooling heat dissipation fan for heat dissipation. When the main controller obtains that the temperature of the laser exceeds the first preset temperature, the main controller outputs a fan enable signal through the sixth general input and output pin to the air-cooling heat dissipation fan through the fan enable sub-interface, and starts the air-cooling heat dissipation fan for heat dissipation. At the same time, the main controller outputs a timing control signal through the second timer Timer2 to the H-bridge MOS driver through the H-bridge MOS driver sub-interface, and controls the speed of the air-cooling heat dissipation fan through the H-bridge MOS driver. As the laser continues to output laser, the temperature of the laser also increases. When the main controller obtains that the temperature of the laser exceeds the second preset temperature, and the original air-cooling cooling fan is not enough to cool the laser to keep the laser in a stable working state, the main controller outputs a refrigerant enable signal through the seventh general input and output pin to the refrigerant cooling system through the refrigerant enable sub-interface to start the refrigerant cooling system. At the same time, the main controller reads the state and alarm information of the refrigerant cooling system through the serial communication connection established with the refrigerant cooling system through the fifth general asynchronous receiver and transmitter pin and the third RS485 communication sub-interface, and controls the cooling mode and temperature of the refrigerant cooling system. This allows the laser to perform welding operations continuously, and there is no need to use an external air cooling system or air-conditioned room to assist in cooling the handheld laser welding equipment, so that the handheld laser welding equipment occupies a small area and has a low cost of use, thereby improving the stability and reliability of the handheld laser welding equipment during long-term operation.

[0137] S4. The main controller detects the external light control command and controls the laser to output laser.

[0138] When the handheld laser welding equipment is in robot mode, the IO laser output is controlled by reading the external control IO signal; if the handheld laser welding equipment is in handheld welding mode, the button of the handheld welding gun head is read to obtain the light control command to control the laser output.

[0139] In this embodiment, a handheld laser welding equipment control method is provided, which is applied to the handheld laser welding equipment. The handheld laser welding equipment control method includes: a main controller reads the welding process parameters issued by the human-computer interaction device, and uploads the status and alarm of the welding equipment to the human-computer interaction device; based on the issued welding process parameters, the main controller controls the laser to execute the welding process parameters; the main controller obtains the temperature inside the laser collected by the temperature and humidity sensor of the board built into the laser, and based on the obtained temperature of the laser, controls and monitors the heat dissipation device; S4, the main controller detects the external light control command to control the laser to output laser. Therefore, the handheld laser welding control board integrates unified control and monitoring of the laser, wire feeder, handheld welding gun head and heat dissipation device, with high integration, so that the communication between the main controller and the laser, wire feeder and handheld welding gun head is real-time and short, and the signal is not easy to cause interference during transmission. It has high stability and reliability, which improves the product usage experience in complex working conditions. The handheld laser welding control board integrates unified control and monitoring of the heat dissipation device, which can allow the external laser to perform welding operations continuously, and there is no need to use an external air cooling system or air-conditioned room to assist in the heat dissipation of the handheld laser welding control board, which makes the handheld laser welding control board low in cost and improves the handheld laser welding control The stability and reliability of the long-term operation of the board making; and because the main controller is used to uniformly control and monitor the laser, wire feeder and handheld welding gun head, the laser, wire feeder and handheld welding gun head no longer need to be controlled separately by their own independent control panels, making the electronic control system of the handheld laser welding equipment containing the handheld laser welding control panel very simple, with low material BOM cost and low use cost. The handheld laser welding control panel integrates the unified control and monitoring of the heat dissipation device, and there is no need to use an external air cooling system or air-conditioned room to assist the heat dissipation of the handheld laser welding equipment, so that the handheld laser welding equipment occupies a small area and has a low use cost, and improves the stability and reliability of the long-term operation of the handheld laser welding equipment. This can solve the problem that the existing handheld laser welding equipment has low integration due to the independent control of each welding component by its own control panel, and the handheld laser welding equipment has poor heat dissipation after long-term operation, resulting in poor stability and reliability of the handheld laser welding equipment.

[0140] It should be noted that the above-mentioned handheld laser welding equipment control method embodiment and the handheld laser welding equipment and / or handheld laser welding control board embodiment belong to the same concept, and the specific implementation process is detailed in the handheld laser welding equipment and / or handheld laser welding control board embodiment, and the technical features in the handheld laser welding equipment and / or handheld laser welding control board embodiment are correspondingly applicable in the above-mentioned handheld laser welding equipment control method embodiment, which will not be repeated here.

[0141] In order to facilitate understanding of the above inventive concept of the present invention, the above inventive concept of the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0142] like Figure 5 As shown, an embodiment of the present invention provides a handheld laser welding equipment control method, which is applied to the handheld laser welding equipment described in any of the above embodiments. The handheld laser welding equipment includes a handheld laser welding control board, and the handheld laser welding control board includes a first remote communication module 37, a second remote communication module, a log recording module 193, a first memory, and a second memory. The first remote communication module 37 and the second remote communication module are described by taking a 4G remote communication module, a TF card for the log recording module 193, a Flash for the first memory, and an EEPROM for the second memory as an example.

[0143] The handheld laser welding equipment control method includes:

[0144] S601. Start.

[0145] S602: Initialize the system clock of the main controller.

[0146] S603: Initialize the underlying driver function API interface of the main controller.

[0147] S604: Initialize the laser external control interface configuration.

[0148] S605: Laser power supply control and temperature and humidity sensor acquisition initialization.

[0149] S606, wire feeder motor communication and control drive initialization.

[0150] S607, handheld welding gun head communication and galvanometer drive control initialization.

[0151] S608, initialization of the shielding gas interface data calibration.

[0152] S609: Initialize touch screen peripheral communication.

[0153] S610, host computer Ethernet port and serial port monitoring peripheral communication initialization.

[0154] S611, air cooling fan enable and PWM drive output initialization.

[0155] S612: Enable the refrigerant cooling system and initialize communication.

[0156] S613, TF card, Flash, EEPROM reading module initialization.

[0157] S614, 4G remote communication module initialization.

[0158] S615, the RTC real-time clock and the external intrusion detection circuit are initialized.

[0159] S616, laser welding process parameter processing.

[0160] After the main controller of the handheld laser welding equipment is initialized, it enters the normal working state and starts to process the affairs of the function and application layer. When the program of the main loop is processed, each task of the polling mechanism is executed cyclically according to the time slice. First, the main controller reads the welding process parameters sent by the lower computer, and uploads the status and alarm of the welding equipment to the human-computer interaction device.

[0161] S617, laser power drive control.

[0162] According to the welding process parameter data sent by the host computer, the data of the Ethernet port and the serial port are read through interruption to perform real-time control of the laser pump source power drive switch.

[0163] S618, laser power supply voltage and current detection.

[0164] A multi-channel ADC is used to detect the voltage and current sensor information of the electric laser pump source in real time and perform smoothing, limiting and averaging filtering.

[0165] S619, laser temperature and humidity sensor collection.

[0166] The main controller collects the temperature and humidity sensor built into the laser board in a timer polling manner, detects the temperature and humidity sensor information of the laser internal control board, obtains the temperature of the laser, and based on the obtained laser temperature, realizes control and monitoring of the heat dissipation device.

[0167] S620: Software encryption and decryption and expiration logic processing.

[0168] The encryption flag status is used to determine the software encryption expiration time and local time of the handheld laser welding equipment to give encryption expiration reminders and expiration alarms.

[0169] S621, refresh collection and summary of system alarm codes and status codes.

[0170] The main controller reads the system fatal alarm and non-fatal alarm codes from the laser and refreshes the summary and equipment status information in real time.

[0171] S622, the RTC real-time clock reads the year, month, day, hour, minute, and second information.

[0172] The RTC real-time clock reads the year, month, day, hour, minute, and second for the timestamp recorded in the TF card, the judgment of the encryption time, and the timing judgment of the laser light emission time.

[0173] S623: Collect and filter the external GPIO signal of the laser.

[0174] The main controller collects the external signal of the laser through the laser external control interface and performs filtering and de-jittering processing on the signal.

[0175] S624, the main controller monitors the dual-channel safety emergency stop interlock logic of the laser in real time, meeting the safety certification of PLD / E.

[0176] S625, data interaction and saving operation between the host computer and the TF card.

[0177] The main controller monitors the data interaction operations between the host computer and the TF card in real time, and triggers corresponding data reading operations and data saving operations based on the data interaction operations.

[0178] If the laser log reading function is selected through the host computer, the data reading operation will be triggered, the data in the TF card will be read and transparently transmitted to the host computer. If the laser log saving function is selected through the host computer, the data saving operation will be triggered, and the data entered on the host computer will be saved on the TF card.

[0179] S626, the main controller detects the external light control command and controls the laser to output laser.

[0180] When the handheld laser welding equipment is in robot mode, the IO laser output is controlled by reading the external control IO signal; if the handheld laser welding equipment is in handheld welding mode, the button of the handheld welding gun head is read to obtain the light control command to control the laser output.

[0181] S627, end.

[0182] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0183] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A handheld laser welding device, characterized in that: It includes a handheld laser welding control panel and welding equipment, including: The welding equipment includes a laser, a wire feeder, a handheld welding gun head and a heat dissipation device; The handheld laser welding control panel includes a main controller, a laser external control interface, a wire feeder interface, a handheld welding gun head interface and a heat sink interface. The main controller is communicated with the laser, the wire feeder, the handheld welding gun head and the heat sink through the laser external control interface, the wire feeder interface, the handheld welding gun head interface and the heat sink interface, respectively, to achieve control and monitoring of the laser, the wire feeder, the handheld welding gun head and the heat sink.

2. The handheld laser welding device according to claim 1, characterized in that: The welding equipment also includes a shielding gas valve, and the handheld laser welding control panel also includes a shielding gas interface. The main controller is communicatively connected with the shielding gas valve via the shielding gas interface to control the shielding gas valve.

3. The handheld laser welding device according to claim 1, characterized in that: The welding equipment also includes a LOOP safety lock, which connects the workpiece and the handheld welding gun head. The main controller is communicatively connected to the LOOP safety lock to control the LOOP safety lock. When the handheld welding gun head is in contact with the workpiece, the main controller allows the laser to emit light normally. When the handheld welding gun head is not in contact with the workpiece, the main controller does not allow the laser to emit light.

4. The handheld laser welding device according to claim 1, characterized in that: The heat dissipation device includes an air-cooled heat dissipation fan, the heat dissipation device interface includes a heat dissipation fan sub-interface, the heat dissipation fan sub-interface includes a fan enable sub-interface and an H-bridge MOS drive sub-interface, the main controller includes a sixth general input and output pin and a second timer, wherein: The sixth general purpose input / output pin is connected to the fan enable sub-interface, and the main controller is connected to the air-cooling heat dissipation fan through the sixth general purpose input / output pin and the fan enable sub-interface to realize switch control of the air-cooling heat dissipation fan; The second timer is connected to the H-bridge MOS driver sub-interface, and the main controller is connected to the air-cooled heat dissipation fan row through the second timer and the H-bridge MOS driver sub-interface to achieve speed control of the air-cooled heat dissipation fan.

5. The handheld laser welding device according to claim 4, characterized in that: The heat dissipation device further includes a refrigerant heat dissipation system, the heat dissipation device interface further includes a refrigerant heat dissipation system sub-interface, the refrigerant heat dissipation system sub-interface includes a refrigerant enable sub-interface and a third RS485 communication sub-interface, the main controller includes a seventh general purpose input and output pin and a fifth general purpose asynchronous receiver and transmitter pin, wherein: The seventh general input / output pin is connected to the refrigerant enabling sub-interface, and the main controller is connected to the refrigerant cooling system through the seventh general input / output pin and the refrigerant enabling sub-interface to realize switch control of the refrigerant cooling system; The fifth universal asynchronous receiver and transmitter pin is connected to the third RS485 communication sub-interface, and the main controller establishes a serial communication connection with the refrigerant cooling system through the fifth universal asynchronous receiver and transmitter pin and the third RS485 communication sub-interface to achieve cooling mode and temperature control of the refrigerant cooling system.

6. The handheld laser welding device according to claim 5, characterized in that: When the output power of the laser is lower than the preset output power, the main controller does not start the air-cooling heat dissipation fan for heat dissipation; when the main controller obtains that the temperature of the laser exceeds the first preset temperature, the main controller outputs a fan enable signal through the sixth general input and output pin to the air-cooling heat dissipation fan via the fan enable sub-interface, and starts the air-cooling heat dissipation fan for heat dissipation. At the same time, the main controller outputs a timing control signal through the second timer to the H-bridge MOS driver via the H-bridge MOS driver sub-interface, and controls the speed of the air-cooling heat dissipation fan through the H-bridge MOS driver; When the main controller obtains that the temperature of the laser exceeds the second preset temperature, the main controller outputs a refrigerant enable signal through the seventh general input / output pin to the refrigerant cooling system via the refrigerant enable sub-interface, thereby starting the refrigerant cooling system for heat dissipation. At the same time, the main controller reads the status and alarm information of the refrigerant cooling system through the serial port communication connection, and controls the cooling mode and temperature of the refrigerant cooling system, wherein the second preset temperature is greater than the first preset temperature.

7. The handheld laser welding device according to claim 1, characterized in that: The handheld laser welding device also includes a human-computer interaction device, which is used to implement human-computer interaction with a user so that the user can set parameter configurations of the welding device; The handheld laser welding control panel also includes a UI communication interface, and the main controller is connected to the human-computer interaction device through the UI communication interface to receive parameter configurations of the welding device set by the user through the human-computer interaction device.

8. The handheld laser welding device according to claim 1, characterized in that: The handheld laser welding control board also includes an external intrusion detection circuit, which is communicatively connected to the laser and the main controller respectively, and is used to detect whether the board of the laser has been illegally disassembled. When it is detected that the board of the laser has been disassembled, a feedback signal is sent to the main controller so that the main controller issues a clear data instruction to clear the sensitive data stored inside the laser, including the welding expert process library.

9. A handheld laser welding control panel, characterized in that: Applicable to the handheld laser welding equipment described in any one of claims 1 to 8, the handheld laser welding control board integrates multiple types of interfaces of the welding equipment, and is communicated with the welding components of the welding equipment through the integrated multiple types of interfaces to achieve control and monitoring of the welding components of the welding equipment; the handheld laser welding control board is communicated with the human-computer interaction device, receives the welding component parameter configuration of the welding equipment set by the user through the human-computer interaction device, and sends the parameter configuration to the corresponding welding component of the welding equipment.

10. A control method for a handheld laser welding device, characterized in that: Applied to the handheld laser welding device according to any one of claims 1 to 8, the handheld laser welding device control method comprises: The main controller reads the welding process parameters sent by the human-machine interaction device, and uploads the status and alarm of the welding equipment to the human-machine interaction device; Based on the welding process parameters issued, the main controller controls the laser to execute the welding process parameters; The main controller obtains the temperature inside the laser collected by the temperature and humidity sensor of the board built into the laser, and based on the obtained temperature of the laser, controls and monitors the heat dissipation device; The main controller detects the external light control command to control the laser to output laser.

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