Wire feed speed adjustment method, device and handheld laser welding gun

Abstract

The application provides a wire feeding speed adjusting method and device and a handheld laser welding gun, so that a welder can conveniently, quickly and timely adjust the wire feeding speed according to needs when welding by using the handheld laser welding gun. The method is applied to the handheld laser welding gun, the handheld laser welding gun is in communication connection with a wire feeder, the wire feeder is used for conveying welding wire to the handheld laser welding gun end, and the method comprises the following steps: the handheld laser welding gun generates a first operation instruction in response to a received operation, the first operation instruction is used for indicating adjustment of a speed at which the wire feeder transmits the welding wire; the handheld laser welding gun determines an adjusted speed according to the first operation instruction; and the handheld laser welding gun sends the adjusted speed to the wire feeder, so that the wire feeder transmits the welding wire according to the adjusted speed.

Description

Technical Field

[0001] This application relates to the field of laser welding technology, specifically to a wire feed speed adjustment method, device, and handheld laser welding gun. Background Technology

[0002] A handheld laser welding torch uses a laser as its energy source to weld materials. During welding, the handheld laser welding torch receives a high-energy laser beam, while a wire feeder simultaneously delivers welding wire to the end face of the material to be welded. The laser beam irradiates the end face of the material and the welding wire in contact with it. The end face of the material and the welding wire absorb the light energy of the laser beam, then convert it into heat energy. This heat energy is conducted into the interior of the end face of the material, causing the temperature to rise. The high temperature melts the welding wire, and the molten wire forms a specific weld pool at the contact point between the material and the welding wire, thus completing the weld.

[0003] During welding, the wire feeder delivers wire at a fixed speed. However, in actual welding, situations may arise such as different material properties, uneven crack widths, or large material widths. In these cases, the required wire feed speed needs to be adjusted according to the specific needs. Currently, when the wire feeder speed is unsuitable for the welding operation, welders need to stop welding to adjust the wire feeder speed or seek assistance from others. This inconvenience for welders in adjusting the wire feed speed significantly reduces welding efficiency.

[0004] Therefore, there is an urgent need for a wire feeding method that allows for easy adjustment of the wire feeding speed. Summary of the Invention

[0005] This application provides a method, device, and handheld laser welding gun for adjusting wire feed speed, enabling welders to conveniently, quickly, and promptly adjust the wire feed speed as needed when using a handheld laser welding gun.

[0006] In a first aspect, this application provides a wire feeding speed adjustment method applied to a handheld laser welding torch. The handheld laser welding torch is communicatively connected to a wire feeder, which feeds welding wire to the end of the handheld laser welding torch. The method includes:

[0007] In response to the received operation, the handheld laser welding gun generates a first operation command, which is used to instruct the adjustment of the wire feeder's wire transmission speed.

[0008] The handheld laser welding gun determines the adjusted speed according to the first operating instruction;

[0009] The handheld laser welding torch sends the adjusted speed to the wire feeder so that the wire feeder can transmit the welding wire according to the adjusted speed.

[0010] In one example, the handheld laser welding torch is also communicatively connected to the welding host, and sends an adjusted speed to the wire feeder, including:

[0011] The handheld laser welding torch receives first instruction information from the welding host, which is used to obtain the speed determined by the handheld laser welding torch.

[0012] The handheld laser welding torch sends the adjusted speed to the welding host, so that the welding host can send the adjusted speed to the wire feeder.

[0013] In one example, the handheld laser welding torch determines the adjusted speed according to the first operating instruction, including:

[0014] The handheld laser welding torch receives a second indication from the welding host, which indicates the initial value of the speed.

[0015] The handheld laser welding gun determines the adjusted speed based on the first operating command and the initial speed value.

[0016] In one example, the first operating instruction is used to instruct the wire feeder to adjust the speed at which it transmits the welding wire, including:

[0017] The first operating command is used to instruct the wire feeder to increase the speed at which it transmits the welding wire, or...

[0018] The first operating command is used to instruct the wire feeder to reduce the speed at which it transmits the welding wire, or...

[0019] The first operation instruction is used to instruct that the original speed value be updated to the latest speed value.

[0020] In one example, the handheld laser welding torch determines the adjusted speed according to a first operating instruction, including:

[0021] If the first operation command is used to instruct the wire feeder to increase the speed of the welding wire, the handheld laser welding gun increases the original speed value according to the preset variable value, and the increased speed is the adjusted speed.

[0022] If the first operation command is used to instruct the wire feeder to reduce the speed of the welding wire, the handheld laser welding gun reduces the original speed according to the preset variable value, and the reduced speed is the adjusted speed.

[0023] If the first operation instruction is used to indicate that the original value of the speed is updated to the latest value of the speed, the handheld laser welding gun updates the original value of the speed to the latest value of the speed, and the speed updated to the latest value is the adjusted speed.

[0024] In one example, the handheld laser welding gun, in response to a received operation, generates a first operation command, including:

[0025] The handheld laser welding gun receives touch operations, which are used to trigger voltage updates on the pins of the handheld laser welding gun.

[0026] The handheld laser welding gun generates the first operation command based on the updated pin voltage.

[0027] Secondly, this application provides a wire feeding speed adjustment method applied to a welding host, wherein the welding host is communicatively connected to a handheld laser welding torch and a wire feeder, and the wire feeder is used to feed welding wire to the end of the handheld laser welding torch. The method includes:

[0028] The welding host sends a first instruction to the handheld laser welding gun. The first instruction is used to obtain the wire feeding speed determined by the handheld laser welding gun so that the handheld laser welding gun can feed back the speed to the welding host.

[0029] The speed at which the welding host receives feedback from the handheld laser welding gun;

[0030] The welding host determines whether the wire feeder speed needs to be updated based on the current wire feeding speed and the speed feedback from the handheld laser welding gun.

[0031] If the wire feeder speed needs to be updated, the welding host sends the updated speed to the wire feeder.

[0032] In one example, the method also includes:

[0033] The welding host sends a second instruction to the handheld laser welding gun, which indicates the initial value of the speed.

[0034] Thirdly, this application provides a handheld laser welding gun, which is communicatively connected to a wire feeder. The wire feeder is used to feed welding wire to the end of the handheld laser welding gun. The handheld laser welding gun includes a welding gun head, an operation panel, and a microcontroller board.

[0035] The welding torch head is used to output the laser beam used for welding materials;

[0036] The control panel is located on the outside of the protective cover above the welding gun head. The control panel faces the user holding the laser welding gun. The control panel has at least one button, which is used to receive user input.

[0037] The microcontroller board is located inside the protective cover and is used to execute the wire feeding speed adjustment method in any of the above embodiments.

[0038] Fourthly, this application provides a wire feeding speed adjustment device applied to a welding host. The welding host is communicatively connected to a handheld laser welding torch and a wire feeder. The wire feeder is used to feed welding wire to the end of the handheld laser welding torch. The device includes:

[0039] The second transmission module is used to send first instruction information from the welding host to the handheld laser welding gun. The first instruction information is used to obtain the speed at which the wire feeder delivers the welding wire, so that the handheld laser welding gun can provide feedback on the speed to the welding host.

[0040] The second transmission module is also used by the welding host to receive the speed feedback from the handheld laser welding gun.

[0041] The second processing module is used by the welding host to determine whether to update the speed based on the original value of the wire feeder speed and the speed feedback from the handheld laser welding gun.

[0042] If the speed is updated, the second transmission module is also used to send the updated speed from the welding host to the wire feeder.

[0043] As described in the above embodiments, the wire feeding speed adjustment method provided in this application is applied to a handheld laser welding gun. The handheld laser welding gun is communicatively connected to a wire feeder, which supplies welding wire to the end of the handheld laser welding gun. When welding materials using the handheld laser welding gun, the welder can modify the wire feeding speed of the wire feeder at any time via the handheld laser welding gun. Upon receiving an operation, the handheld laser welding gun generates a first operation command, which instructs the adjustment of the wire feeding speed. The handheld laser welding gun determines the adjusted speed according to the first operation command. The handheld laser welding gun sends the adjusted speed to the wire feeder so that the wire feeder feeds the welding wire according to the adjusted speed. This allows the welder to conveniently adjust the wire feeding speed of the wire feeder via the handheld laser welding gun, thereby improving the welder's welding efficiency. Attached Figure Description

[0044] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram illustrating a scenario in which the wire feeding speed adjustment method provided in an exemplary embodiment of this application is applicable;

[0046] Figure 2 This is a schematic flowchart of a wire feeding speed adjustment method provided in an exemplary embodiment of this application;

[0047] Figure 3 This is a schematic diagram of a handheld laser welding gun structure provided in an exemplary embodiment of this application;

[0048] Figure 4 This is a schematic diagram of a microcontroller board structure provided in an exemplary embodiment of this application;

[0049] Figure 5 This is a schematic diagram of a microcontroller board structure provided in another exemplary embodiment of this application;

[0050] Figure 6 This is a schematic diagram of the workflow of a handheld laser welding gun provided in an exemplary embodiment of this application;

[0051] Figure 7 This is a schematic flowchart of a wire feeding speed adjustment method provided in another exemplary embodiment of this application;

[0052] Figure 8 This is a schematic diagram of the welding host workflow provided in an exemplary embodiment of this application. Detailed Implementation

[0053] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0054] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0055] Figure 1This is a schematic diagram illustrating a scenario in which the wire feeding speed adjustment method provided in an exemplary embodiment of this application is applicable. The welding host is primarily used to generate a laser beam for welding; the wire feeder provides welding wire and communicates with the welding host via an RS232 interface, feeding the welding wire to the handheld laser welding gun through a wire feeding tube; the handheld laser welding gun acquires the laser beam output from the welding host via an optical fiber and then uses the laser beam to weld the end face of the material; the handheld laser welding gun communicates with the welding host via an RS485 interface; a wire feeding bracket is provided below the welding gun head of the handheld laser welding gun to fix the wire feeding tube of the wire feeder; an air compressor is connected to the handheld laser welding gun via a protective air pipe to provide airflow to protect the welding gun head; a vacuum cleaner is used to absorb the fumes generated during welding to prevent harm to workers; a water chiller is connected to both the handheld laser welding gun and the welding host via cold water pipes to absorb excess heat generated at the end of the handheld laser welding gun and to dissipate heat from the laser inside the welding host.

[0056] Figure 2 This is a flowchart illustrating an exemplary embodiment of the wire feeding speed adjustment method provided in this application. This embodiment can be applied to a handheld laser welding torch, which is communicatively connected to a wire feeder. The wire feeder is used to deliver welding wire to the end of the handheld laser welding torch. The following describes the process in conjunction with... Figure 1 and Figure 2 The method for adjusting the wire feeding speed is explained below, and includes the following steps:

[0057] S110, the handheld laser welding gun responds to the received operation and generates the first operation command.

[0058] The first operation command is used to instruct the adjustment of the speed at which the wire feeder transmits the welding wire.

[0059] For example, the first operating instruction is used to instruct the wire feeder to increase the speed at which it transmits the welding wire, or,

[0060] The first operating command is used to instruct the wire feeder to reduce the speed at which it transmits the welding wire, or...

[0061] The first operation instruction is used to instruct that the original speed value be updated to the latest speed value.

[0062] In the above method, by setting the content of the first operation instruction, the handheld laser welding gun can adjust its speed accordingly based on the content of the first operation instruction.

[0063] In one example, the handheld laser welding gun, in response to a received operation, generates a first operation command, including:

[0064] The handheld laser welding torch receives touch input, which triggers a voltage update on the torch's pins. The torch's microcontroller then generates a first operation command based on the updated pin voltage.

[0065] In the above method, the voltage of the pin is updated by the touch operation, which enables the microcontroller chip to generate the first operation command through the updated voltage. The method is simple and helps to reduce the complexity of the microcontroller chip program and the circuit of the microcontroller board. It is more suitable for installation on a handheld laser welding gun.

[0066] In one example, such as Figure 3 As shown, the handheld laser welding gun includes a welding gun head that outputs a laser beam, an operation panel, and a microcontroller board. The operation panel is located outside the protective cover above the welding gun head, and the microcontroller board is located inside the protective cover. When using the handheld laser welding gun, the operation panel faces the user, and the welding gun head faces away from the user. The operation panel has three buttons, each with a pin. These three buttons are marked "+", "-", and "OK". The "+" button increases the speed value, the "-" button decreases the speed value, and the "OK" button replaces the existing speed with the increased or decreased speed. The microcontroller board is as follows... Figure 4 As shown, the system includes an STM32 microcontroller chip, an RS485 chip, a power conversion chip, a USB-to-serial chip, an RS485 interface socket, a power socket, a MicroUSB socket, and a button pin socket. The positioning holes on the microcontroller board are used to secure it to the inside of the protective cover. The STM32 microcontroller chip executes programs related to wire feed speed adjustment. The RS485 chip converts the information output by the STM32 microcontroller chip into information conforming to the RS485 standard. The power conversion chip converts the input 5V DC power to 3.3V DC power for the microcontroller chip. The USB-to-serial chip converts the information output from the MicroUSB interface into information that the STM32 microcontroller chip can recognize and inputs it into the STM32 microcontroller chip. The RS485 interface socket is used to connect to the serial port of the soldering host via an RS485 communication line. The power socket is used to connect to a 5V DC power supply. The MicroUSB socket connects to a MicroUSB data cable for downloading programs. The button pin socket has pins for "COM", "+", "-", and "OK". COM is the pin that provides a high level, while "+", "-", and "ok" are the pins that provide a low level. The "+", "-", and "ok" pins in the button pin socket correspond to the pins of the three buttons "+", "-", and "ok" on the operation panel, respectively.

[0067] exist Figure 3 and Figure 4 Based on this, let's take an example to illustrate how a handheld laser welding gun generates the first operation command:

[0068] For example, the STM32 microcontroller uses a polling method to obtain the voltage levels of each pin in the button pin socket. When the "+" button on the operation panel is pressed, the "+" pin and the "COM" pin in the button pin socket connected to the "+" button are short-circuited, and the "+" pin's voltage level becomes high. After the STM32 microcontroller obtains the high voltage level of the "+" pin, it generates a first operation instruction. This first operation instruction is used to indicate an increase in the wire feeder's wire transmission speed (Vmm / min). The increased speed becomes (V+ΔV)mm / min, where ΔV represents the numerical value of each speed change, for example, ΔV = 5. When the "OK" button on the operation panel is pressed, the "OK" pin and the "COM" pin in the button pin socket connected to the "OK" button are short-circuited, and the "OK" pin's voltage level becomes high. After the STM32 microcontroller obtains the high voltage level of the "OK" pin, it updates the original value of the wire transmission speed, Vmm / min, to the increased speed value, (V+ΔV)mm / min.

[0069] For example, when the "-" button on the operation panel is pressed, the "-" pin of the button's pin connector is short-circuited with the "COM" pin, causing the "-" pin to go high. The STM32 microcontroller, upon receiving the high level from the "-" pin, generates a first operation instruction to reduce the wire feeder's wire transmission speed (Vmm / min), resulting in a speed of (V-ΔV)mm / min. Similarly, when the "ok" button on the operation panel is pressed, the "ok" pin of the button's pin connector is short-circuited with the "COM" pin, causing the "ok" pin to go high. The STM32 microcontroller, upon receiving the high level from the "ok" pin, updates the original wire transmission speed value, Vmm / min, to the reduced speed value, (V-ΔV)mm / min.

[0070] In the above method, when the handheld laser welding gun is used by the user, the control panel faces the user and the welding gun head faces away from the user, so that the user can conveniently and quickly adjust the wire feeding speed at any time through the control panel according to their needs.

[0071] S120, the handheld laser welding gun determines the adjusted speed according to the first operation command.

[0072] In one example, the handheld laser welding torch is also communicatively connected to the welding host machine. Based on a first operating command, the handheld laser welding torch determines an adjusted speed, including: first, receiving second indication information from the welding host machine, the second indication information indicating an initial speed value; then, the handheld laser welding torch determines the adjusted speed based on the first operating command and the initial speed value.

[0073] For example, the initial value of the speed is 100 mm / min.

[0074] In the above method, the initial speed value obtained by the handheld laser welding gun is sent by the welding host. According to the subsequent scheme, the welding host also sends the initial speed value to the wire feeder, realizing the unification of the initial speed values ​​of the handheld laser welding gun and the wire feeder, so that the handheld laser welding gun can accurately adjust the wire feeding speed based on the initial speed value.

[0075] In the above example, the handheld laser welding gun obtains an initial speed value through interaction with the welding host. In another example, the handheld laser welding gun can also determine the initial speed value through interaction with a wire feeder, or the handheld laser welding gun can also receive an input operation indicating an initial speed value, thereby determining the initial speed value based on the input operation.

[0076] In one example, in response to a received operation, the handheld laser welding torch generates a first operation command. This first operation command instructs the adjustment of the wire feeder's wire transmission speed. Based on the first operation command, the handheld laser welding torch determines the adjusted speed, including: first, after receiving an initial speed value, determining whether a first instruction message has been received from the welding host. If no first instruction message is received from the welding host, the handheld laser welding torch determines whether to generate the first operation command. If the handheld laser welding torch generates the first operation command in response to the received operation, the handheld laser welding torch determines that the first operation command has been generated, and then determines the adjusted speed based on the first operation command.

[0077] In one example, the handheld laser welding gun determines the adjusted speed according to a first operation command, including: if the first operation command instructs to increase the speed of the wire feeder transmitting welding wire, the handheld laser welding gun increases the original speed value according to a preset variable value, and the increased speed is the adjusted speed; if the first operation command instructs to decrease the speed of the wire feeder transmitting welding wire, the handheld laser welding gun decreases the original speed value according to a preset variable value, and the decreased speed is the adjusted speed; if the first operation command instructs to update the original speed value to the latest speed value, the handheld laser welding gun updates the original speed value to the latest speed value, and the updated speed is the adjusted speed.

[0078] For example, after receiving the initial speed value, and determining that no first instruction information has been received from the welding host, the microcontroller chip of the handheld laser welding gun polls the pin level of the button pin socket to determine whether the pin level has changed from low to high. If the pin level changes from low to high, the handheld laser welding gun generates a first operation command. The handheld laser welding gun then determines the adjusted speed based on the first operation command.

[0079] S130: The handheld laser welding torch sends the adjusted speed to the wire feeder so that the wire feeder can transmit the welding wire according to the adjusted speed.

[0080] Since wire feeders typically have an RS232 communication interface, handheld laser welding torches need to communicate with the wire feeder via an RS232 communication cable. This application also provides a schematic diagram of a microcontroller board for a handheld laser welding torch. Figure 5 As shown, the microcontroller board includes an STM32 microcontroller chip, a TTL-to-232 converter chip, a power conversion chip, a USB-to-serial converter chip, an RS232 interface socket, a power socket, a MicroUSB socket, and button pin sockets. The TTL-to-232 converter chip converts the format of the information output by the STM32 microcontroller chip into a format recognizable by the RS232 communication interface. The RS232 interface socket is used to connect the RS232 communication line, which is connected to the RS232 communication interface of the wire feeder. See other parts for details. Figure 4 The relevant descriptions of the microplate shown will not be repeated here.

[0081] The above embodiments enable direct communication between the handheld laser welding gun and the wire feeder.

[0082] In one example, Figure 4 Based on the embodiment of the microporous plate shown, the handheld laser welding gun is also connected to the welding host via an RS485 communication line, and the welding host is connected to the wire feeder via an RS232 communication line. The handheld laser welding gun sends the adjusted speed to the wire feeder, including:

[0083] The handheld laser welding gun receives first instruction information from the welding host. The first instruction information is used to obtain the speed determined by the handheld laser welding gun. The handheld laser welding gun sends the adjusted speed to the welding host so that the welding host can send the adjusted speed to the wire feeder.

[0084] Furthermore, if the handheld laser welding torch is not adjusted in speed, it will send the unadjusted speed to the welding host. In other words, the speed determined by the handheld laser welding torch can be either the adjusted speed or the unadjusted speed stored in the handheld laser welding torch.

[0085] Because RS485 communication lines have a relatively long communication distance, the handheld laser welding torch can communicate with the welding host via an RS485 communication line, allowing the torch to move a considerable distance. The communication distance between the welding host and the wire feeder only needs to meet the requirements of an RS232 communication line. Therefore, this method is suitable for scenarios where the handheld laser welding torch needs to move a long distance.

[0086] In conjunction with the above embodiments, this application also provides an example of the workflow of a handheld laser welding gun when the user uses it. For example... Figure 6 As shown, after the handheld laser welding torch is powered on, it sends information to the welding host to instruct the start of welding. After receiving the initial speed value from the welding host, the handheld laser welding torch determines whether it has received a command from the welding host, which is either a first instruction message or a second instruction message.

[0087] If a command is received from the welding host, the handheld laser welding gun analyzes the command content to determine if it is a second instruction message. If it is a second instruction message, the initial speed value is modified according to its content. If it is not a second instruction message, it determines if it is a first instruction message. If so, the speed determined by the handheld laser welding gun is sent to the welding host, and the system continues to determine if a command has been received from the welding host; if not, an alarm is triggered. Specifically, the alarm process includes issuing an alarm message to inform the user that the command from the welding host cannot be recognized, and continuing to determine if a command has been received from the welding host.

[0088] If no command is received from the welding host, use the handheld laser welding torch to determine if a touch operation has been received. If a touch operation is received, identify the button among "+", "-", and "OK" that received the touch operation. If the "+" button is pressed, increase the wire feeder's wire feeding speed and continue to determine if a command has been received from the welding host; if the "-" button is pressed, decrease the wire feeder's wire feeding speed and continue to determine if a command has been received from the welding host; if the "OK" button is pressed, update the original speed value to the adjusted latest speed value and continue to determine if a command has been received from the welding host.

[0089] As described in the above embodiments, the wire feeding speed adjustment method provided in this application is applied to a handheld laser welding gun. The handheld laser welding gun is communicatively connected to a wire feeder, which supplies welding wire to the end of the handheld laser welding gun. When welding materials using the handheld laser welding gun, the welder can modify the wire feeding speed of the wire feeder at any time via the handheld laser welding gun. Upon receiving an operation, the handheld laser welding gun generates a first operation command, which instructs the adjustment of the wire feeding speed. The handheld laser welding gun determines the adjusted speed according to the first operation command. The handheld laser welding gun sends the adjusted speed to the wire feeder so that the wire feeder feeds the welding wire according to the adjusted speed. This allows the welder to conveniently adjust the wire feeding speed of the wire feeder via the handheld laser welding gun, thereby improving the welder's welding efficiency.

[0090] Figure 7 This is a flowchart illustrating a wire feeding speed adjustment method provided in another exemplary embodiment of this application. This embodiment can be applied to a welding host, where a handheld laser welding torch is communicatively connected to a wire feeder. The wire feeder is used to deliver welding wire to the end of the handheld laser welding torch. The following describes the method in conjunction with... Figure 2 and Figure 7 The method for adjusting the wire feeding speed is described, and the method includes the following steps:

[0091] S210, the welding host sends a first instruction to the handheld laser welding gun. The first instruction is used to obtain the wire feeding speed determined by the handheld laser welding gun so that the handheld laser welding gun can feed back the speed to the welding host.

[0092] In one example, before the welding host sends the first instruction to the handheld laser welding gun, the method further includes:

[0093] First, the welding host acquires an initial speed value. Next, the welding host sends the initial speed values ​​to both the handheld laser welding torch and the wire feeder, so that the handheld laser welding torch adjusts its speed accordingly. Then, the welding host checks if it has received any information from the handheld laser welding torch instructing the start of welding. If not, it continues to check for such information. If yes, the welding host sends a first instruction to the handheld laser welding torch and then receives the speed feedback from the handheld laser welding torch. Based on the initial speed value of the wire feeder and the speed feedback from the handheld laser welding torch, the latest wire feeder speed is determined. This latest wire feeder speed is then sent to the wire feeder. Next, the welding host delivers a laser beam to the handheld laser welding torch and, after a preset time delay, sends information to the wire feeder instructing the wire feeder to transmit the wire, so that the wire feeder transmits the wire according to the initial speed value.

[0094] For example, the preset latency is set to 400 milliseconds.

[0095] In the above method, the welding host sends initial speed values ​​to the handheld laser welding gun and the wire feeder respectively, so that the speed of the handheld laser welding gun and the wire feeder is kept uniform from the beginning. This allows the user to accurately adjust the speed of the wire feeder to deliver welding wire through the handheld laser welding gun.

[0096] In one example, the welding host sends a second instruction to the handheld laser welding torch, which indicates an initial value for the speed. Upon receiving the second instruction, the handheld laser welding torch determines the initial speed value based on it.

[0097] S220, the speed at which the welding host receives feedback from the handheld laser welding gun.

[0098] S230: The welding host determines whether to update the speed based on the speed of the wire feeder during the current wire feeding process and the speed feedback from the handheld laser welding gun.

[0099] S240, if the speed needs to be updated, the welding host sends the updated speed to the wire feeder.

[0100] In conjunction with the above embodiments, this application also provides an embodiment of the workflow of a welding machine. For example... Figure 8 As shown, after the welding host is powered on, the initial speed value can be manually set, and then the initial speed values ​​are sent to the handheld laser welding torch and the wire feeder respectively. The welding host checks whether it has received information from the handheld laser welding torch indicating the start of welding. If not, the welding host continues to check whether it has received information from the handheld laser welding torch indicating the start of welding; if so, before delivering the laser beam to the handheld laser welding torch, the welding host sends a first indication message to the handheld laser welding torch, and then receives the speed feedback from the handheld laser welding torch. Based on the initial speed value of the wire feeder and the speed feedback from the handheld laser welding torch, it determines whether to update the initial speed value. The latest wire feeder speed for transmitting welding wire is determined. Then, this latest wire feeder speed for transmitting welding wire is sent to the wire feeder. Next, the welding host delivers the laser beam to the handheld laser welding torch, and after 400ms, sends information to the wire feeder indicating the transmission of welding wire, so that the wire feeder can transmit welding wire according to the initial speed value. The welding host sends the first indication message to the handheld laser welding torch, and then receives the speed feedback from the handheld laser welding torch. Next, based on the speed of the wire feeder during the current wire feeding process and the speed reported by the handheld laser welding gun, it is determined whether to update the speed.

[0101] If the speed needs to be updated, the welding host sends the updated speed to the wire feeder, and then checks whether it has received a message from the handheld laser welding gun to indicate that welding should be stopped.

[0102] If not, the welding host checks whether it has received a message from the handheld laser welding gun instructing it to stop welding. If yes, the welding host stops feeding the laser beam to the handheld laser welding gun, then sends a message to the wire feeder instructing it to stop feeding the welding wire, and then continues to check whether it has received a message from the handheld laser welding gun instructing it to start welding. If no, it continues to send the first instruction message to the handheld laser welding gun, and then receives the speed feedback from the handheld laser welding gun. Next, based on the speed of the wire feeder during the current wire feeding process and the speed feedback from the handheld laser welding gun, it determines whether to update the speed. If the speed is updated, the welding host sends the updated speed to the wire feeder, and then checks whether it has received a message from the handheld laser welding gun instructing it to stop welding, until it receives such a message.

[0103] As can be seen from the above embodiments, the wire feeding speed adjustment method provided in this application is applied to a welding host. The welding host and the handheld laser welding gun are connected in communication, and the welding host and the wire feeder are connected in communication. The wire feeder is used to feed welding wire to the end of the handheld laser welding gun.

[0104] The welding host sends a first instruction to the handheld laser welding gun. This first instruction is used to obtain the speed at which the wire feeder delivers the welding wire, so that the handheld laser welding gun can feed back the speed to the welding host. After receiving the speed feedback from the handheld laser welding gun, the host determines whether to update the speed based on the original speed of the wire feeder and the speed feedback from the handheld laser welding gun. If the speed needs to be updated, the welding host sends the updated speed to the wire feeder. In this embodiment, after the handheld laser welding gun adjusts the speed at which the wire feeder delivers the welding wire, it promptly sends the adjusted speed to the wire feeder, allowing welders to conveniently adjust the wire feeder speed using the handheld laser welding gun, thereby improving welding efficiency.

[0105] Combination Figure 3 This application provides a handheld laser welding gun, which is communicatively connected to a wire feeder. The wire feeder is used to feed welding wire to the end of the handheld laser welding gun. The handheld laser welding gun includes a welding gun head, an operation panel, and a microcontroller board.

[0106] The welding torch head is used to output the laser beam used for welding materials;

[0107] The control panel is located on the outside of the protective cover above the welding torch head. The control panel faces the user holding the laser welding torch. The control panel has at least one button, which is used to receive user input.

[0108] The microcontroller board is located inside the protective cover and is used to execute the wire feeding speed adjustment method in any of the embodiments of the above methods S110 to S130.

[0109] Other implementation methods and effects are described in S110 to S130 above, and will not be repeated here.

[0110] In conjunction with the above-described method embodiments for adjusting wire feed speed, this application also provides a wire feed speed adjustment device applied to a welding host. The welding host is communicatively connected to a handheld laser welding torch and a wire feeder. The wire feeder is used to feed welding wire to the end of the handheld laser welding torch. The device includes:

[0111] The second transmission module is used to send first instruction information from the welding host to the handheld laser welding gun. The first instruction information is used to obtain the speed at which the wire feeder delivers the welding wire, so that the handheld laser welding gun can provide feedback on the speed to the welding host.

[0112] The second transmission module is also used by the welding host to receive the speed feedback from the handheld laser welding gun.

[0113] The second processing module is used by the welding host to determine whether to update the speed based on the original value of the wire feeder speed and the speed feedback from the handheld laser welding gun.

[0114] If the speed is updated, the second transmission module is also used to send the updated speed from the welding host to the wire feeder.

[0115] Other implementation methods and effects are described in S210 to S240 above, and will not be repeated here.

[0116] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0117] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0118] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0119] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0120] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0121] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A method for adjusting wire feeding speed, characterized in that, An application to a handheld laser welding gun, wherein the handheld laser welding gun is communicatively connected to a welding host, and the welding host is communicatively connected to a wire feeder, the welding host being used to deliver a laser beam to the handheld laser welding gun, the method comprising: The handheld laser welding gun receives second indication information from the welding host, the second indication information being used to indicate the initial value of the speed; In response to the received operation, the handheld laser welding gun generates a first operation command, which is used to instruct the adjustment of the speed at which the wire feeder transmits the welding wire. The handheld laser welding gun determines the adjusted speed based on the first operation command and the initial value of the speed; After the handheld laser welding torch sends a welding start instruction to the welding host, it receives a first instruction from the welding host. The first instruction is used to obtain the speed determined by the handheld laser welding torch. The handheld laser welding torch sends the adjusted speed to the welding host so that the welding host can determine the latest wire feeding speed based on the initial value of the wire feeder speed and the adjusted speed. After sending the latest wire feeding speed to the wire feeder, the welding host delivers a laser beam to the handheld laser welding torch and sends information to the wire feeder after a preset time delay to instruct the wire feeding to transmit the wire, so that the wire feeder transmits the wire according to the latest wire feeding speed. During the welding process of the handheld laser welding gun, in response to the received operation, the handheld laser welding gun generates a new first operation command. The handheld laser welding gun determines a new adjusted speed based on the first operation command and the original speed value. The handheld laser welding gun receives the first instruction information from the welding host. The handheld laser welding gun sends the new speed to the welding host so that the welding host, based on the current speed of the wire feeder and the new speed, determines that the speed of the wire feeder needs to be updated, and sends the new speed to the wire feeder, so that the wire feeder transmits the welding wire according to the new speed.

2. The method according to claim 1, characterized in that, The first operation instruction is used to instruct the adjustment of the wire feeder's wire transmission speed, including: The first operation instruction is used to instruct the wire feeder to increase the speed at which it transmits the welding wire, or, The first operation instruction is used to instruct the wire feeder to reduce the speed at which it transmits the welding wire, or, The first operation instruction is used to instruct the original value of the speed to be updated to the latest value of the speed.

3. The method according to claim 2, characterized in that, The handheld laser welding gun determines the adjusted speed according to the first operation command, including: If the first operation instruction is used to instruct the wire feeder to increase the speed of the welding wire, the handheld laser welding gun increases the original value of the speed according to the preset variable value, and the increased speed is the adjusted speed; If the first operation instruction is used to instruct the wire feeder to reduce the speed of the welding wire, the handheld laser welding gun reduces the original value of the speed according to the preset variable value, and the reduced speed is the adjusted speed. If the first operation instruction is used to indicate that the original value of the speed is updated to the latest value of the speed, the handheld laser welding gun updates the original value of the speed to the latest value of the speed, and the speed updated to the latest value is the adjusted speed.

4. The method according to claim 1, characterized in that, The handheld laser welding gun responds to the received operation by generating a first operation command, including: The handheld laser welding gun receives a touch operation, which is used to cause a voltage update on the pins of the handheld laser welding gun; The handheld laser welding gun generates a first operation command based on the updated voltage of the pin.

5. A method for adjusting wire feeding speed, characterized in that, The method is applied to a welding host, which is communicatively connected to a handheld laser welding torch and a wire feeder. The wire feeder is used to feed welding wire to the end of the handheld laser welding torch, and the welding host is used to feed a laser beam to the handheld laser welding torch. The method includes: The welding host sends a second instruction to the handheld laser welding gun, the second instruction being used to indicate the initial value of the speed; After receiving the instruction to start welding from the handheld laser welding gun, the welding host sends a first instruction to the handheld laser welding gun before delivering the laser beam to the handheld laser welding gun. The first instruction is used to obtain the wire feeding speed determined by the handheld laser welding gun so that the handheld laser welding gun can feed back the speed to the welding host. The welding host receives the speed feedback from the handheld laser welding gun; The welding host determines the latest wire feeding speed based on the initial value of the wire feeder speed and the speed fed back by the handheld laser welding gun. After sending the latest wire feeding speed to the wire feeder, the welding host delivers a laser beam to the handheld laser welding gun and sends information to the wire feeder after a preset time delay to indicate the wire feeding, so that the wire feeder feeds the wire according to the latest wire feeding speed. During the welding process of the handheld laser welding gun, a first instruction message is sent to the handheld laser welding gun. After receiving the speed feedback from the handheld laser welding gun, the welding host determines whether the speed of the wire feeder needs to be updated based on the speed of the wire feeder in the current wire feeding process and the speed feedback from the handheld laser welding gun. If the speed of the wire feeder needs to be updated, the welding host sends the updated speed to the wire feeder.

6. A handheld laser welding gun, characterized in that, The handheld laser welding gun is communicatively connected to the welding host, and the welding host is communicatively connected to the wire feeder. The welding host is used to deliver a laser beam to the handheld laser welding gun. The handheld laser welding gun includes a welding gun head, an operation panel, and a microcontroller board. The welding torch head is used to output the laser beam used for welding materials; The operation panel is located outside the protective cover above the welding gun head, and the operation panel faces the user holding the laser welding gun. The operation panel is provided with at least one button, which is used to receive the user's operation. The microcontroller board is located inside the protective cover and is used to perform the wire feeding speed adjustment method according to any one of claims 1 to 4.

7. A wire feeding speed adjustment device, characterized in that, An apparatus for use with a welding host, wherein the welding host is communicatively connected to a handheld laser welding torch and a wire feeder, the wire feeder being used to feed welding wire to the end of the handheld laser welding torch, and the welding host being used to feed a laser beam to the handheld laser welding torch, the apparatus comprising: The second transmission module is used for the welding host to send second instruction information to the handheld laser welding gun, the second instruction information being used to indicate the initial value of the speed; and after the welding host receives the instruction to start welding from the handheld laser welding gun, before delivering the laser beam to the handheld laser welding gun, the welding host sends first instruction information to the handheld laser welding gun, the first instruction information being used to obtain the speed at which the wire feeder delivers the welding wire, so that the handheld laser welding gun can feed back the speed to the welding host; The second transmission module is also used for the welding host to receive the speed fed back by the handheld laser welding gun; The second processing module is used for the welding host to determine the latest wire feeding speed of the wire feeder based on the initial value of the wire feeder speed and the speed fed back by the handheld laser welding gun; and after the welding host sends the latest wire feeding speed to the wire feeder, the welding host sends a laser beam to the handheld laser welding gun. The second transmission module is also used for the welding host to send information indicating the transmission of the welding wire to the wire feeder after a preset time delay, so that the wire feeder transmits the welding wire according to the latest wire feeding speed. The second transmission module is also used by the welding host to send first instruction information to the handheld laser welding gun during the welding process of the handheld laser welding gun. The second processing module is used by the welding host to determine whether to update the speed based on the original value of the wire feeder speed and the speed fed back by the handheld laser welding gun. If the speed is updated, the second transmission module is also used for the welding host to send the updated speed to the wire feeder.

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