CN116237638A

CN116237638A - Wire feeding speed adjusting method and device and handheld laser welding gun

Info

Publication number: CN116237638A
Application number: CN202310282110.0A
Authority: CN
Inventors: 孙丽媛; 张明山; 李欢欣; 贾中青; 翟瑞占; 刘民哲; 赵坤; 王巍; 田晓琳; 张四维; 朱天瑜; 王丽莎; 刘梦霖; 王勇; 尹晓琴
Original assignee: Shandong Xinguang Photoelectric Technology Co ltd; Laser Institute of Shandong Academy of Science
Current assignee: Shandong Xinguang Photoelectric Technology Co ltd; Laser Institute of Shandong Academy of Science
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-06-09

Abstract

The application provides a wire feeding speed adjusting method, a wire feeding speed adjusting 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 using the handheld laser welding gun for welding. The method is applied to a handheld laser welding gun, the handheld laser welding gun is in communication connection with a wire feeder, the wire feeder is used for feeding welding wires to a handheld laser welding gun end, and the method comprises the following steps: the handheld laser welding gun responds to the received operation, and generates a first operation instruction which is used for indicating and adjusting the speed of the wire feeder for transmitting welding wires; the handheld laser welding gun determines the adjusted speed according to the first operation instruction; the hand-held laser welding gun sends the adjusted speed to the wire feeder so that the wire feeder can transmit welding wires according to the adjusted speed.

Description

Wire feeding speed adjusting method and device and handheld laser welding gun

Technical Field

The application relates to the technical field of laser welding, in particular to a wire feeding speed adjusting method and device and a handheld laser welding gun.

Background

And the handheld laser welding gun takes laser as an energy source to finish welding materials. During welding, a handheld laser welding gun acquires a laser beam with high energy intensity, and a wire feeder simultaneously feeds welding wires to the end surfaces of materials to be welded. The laser beam is irradiated on the material end face and the welding wire in contact with the material end face. The material end face and the welding wire absorb the light energy of the laser beam, then the light energy is converted into heat energy, the heat energy is conducted into the material end face to raise the temperature, the welding wire is melted due to the high temperature, and a specific molten pool is formed at the contact position of the material and the welding wire by the melted welding wire, so that the welding is completed.

Wherein, during welding, the wire feeder feeds wire at a fixed value. However, in actual welding, the conditions of different material materials, uneven material cracks, equal width, larger material width and the like occur, and the wire feeding speed required by welding needs to be adjusted according to actual requirements. At present, when the wire feeding speed of the wire feeder is not suitable for the current welding operation requirement, a welder needs to stop welding to adjust the wire feeding speed of the wire feeder, or seeks to assist others in adjusting the wire feeding speed of the wire feeder, and the welding efficiency is greatly reduced due to the inconvenience in adjusting the wire feeding speed of the welder.

Accordingly, a wire feeding method that facilitates adjustment of the wire feeding speed is desired.

Disclosure of Invention

The application provides a wire feeding speed adjusting method, a wire feeding speed adjusting 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 using the handheld laser welding gun for welding.

In a first aspect, the present application provides a wire feed speed adjustment method applied to a handheld laser welding gun, where the handheld laser welding gun is in communication connection with a wire feeder, and the wire feeder is used for feeding welding wires to a handheld laser welding gun end, the method including:

the handheld laser welding gun responds to the received operation, and generates a first operation instruction which is used for indicating and adjusting the speed of the wire feeder for transmitting welding wires;

the handheld laser welding gun determines the adjusted speed according to the first operation instruction;

the hand-held laser welding gun sends the adjusted speed to the wire feeder so that the wire feeder can transmit welding wires according to the adjusted speed.

In one example, the handheld laser welding torch is also in communication with the welding host, the handheld laser welding torch sending the adjusted speed to the wire feeder, comprising:

the method comprises the steps that a handheld laser welding gun receives first indication information from a welding host, wherein the first indication information is used for obtaining the speed determined by the handheld laser welding gun;

the hand-held laser welding gun transmits the adjusted speed to the welding host so that the welding host transmits the adjusted speed to the wire feeder.

In one example, the handheld laser welding gun determining the adjusted speed according to the first operating instruction includes:

the handheld laser welding gun receives second indication information from the welding host, wherein the second indication information is used for indicating an initial value of the speed;

and the handheld laser welding gun determines the adjusted speed according to the first operation instruction and the initial value of the speed.

In one example, the first operating instructions are for instructing to adjust a speed of the wire feeder to transfer the welding wire, comprising:

the first operating instruction is used for indicating to increase the speed of the wire feeder for conveying the welding wire, or alternatively,

the first operating instruction is for instructing to reduce the speed at which the wire feeder delivers the wire, or,

the first operation instruction is used for indicating to update the original value of the speed to the latest value of the speed.

In one example, a handheld laser welding gun determines an adjusted speed according to a first operating instruction, comprising:

if the first operation instruction is used for indicating to increase the speed of the wire feeder for transmitting 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 for indicating to reduce the speed of the wire feeder for transmitting the welding wire, the handheld laser welding gun reduces the original speed value according to the preset variable value, and the reduced speed is the adjusted speed;

if the first operation instruction is used for indicating 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 speed updated to the latest speed value is the adjusted speed.

In one example, a handheld laser welding gun generates first operation instructions in response to a received operation, including:

the handheld laser welding gun receives touch operation, wherein the touch operation is used for causing voltage update of pins of the handheld laser welding gun;

and the handheld laser welding gun generates a first operation instruction according to the updated voltage of the pin.

In a second aspect, the present application provides a wire feed speed adjustment method applied to a welding host, where the welding host is respectively in communication connection with a handheld laser welding gun and a wire feeder, and the wire feeder is used for feeding welding wires to a handheld laser welding gun end, the method including:

the welding host sends first indication information to the handheld laser welding gun, wherein the first indication information is used for acquiring the wire feeding speed determined by the handheld laser welding gun so that the handheld laser welding gun feeds back the speed to the welding host;

the welding host receives the feedback speed of the handheld laser welding gun;

the welding host determines whether the speed of the wire feeder needs to be updated according to the speed of the wire feeder in the current wire feeding process and the speed fed back by the handheld laser welding gun;

if the speed of the wire feeder needs to be updated, the welding host machine sends the updated speed to the wire feeder.

In one example, the method further comprises:

the welding host sends second indication information to the handheld laser welding gun, wherein the second indication information is used for indicating the initial value of the speed.

In a third aspect, the present application provides a handheld laser welding gun, the handheld laser welding gun being in communication with a wire feeder, the wire feeder being configured to feed welding wire to a handheld laser welding gun end, the handheld laser welding gun comprising a gun head, an operating panel and a micro control board;

the welding gun head is used for outputting a laser beam for welding materials;

the operation panel is positioned on the outer side of the protective cover above the welding gun head, faces a user holding the laser welding gun, and is provided with at least one key for receiving the operation of the user;

the micro-control board is located inside the protective cover and is used to perform the wire feed speed adjustment method of any of the embodiments described above.

In a fourth aspect, the present application provides a wire feed speed adjustment device, is applied to the welding host computer, and the welding host computer respectively with handheld laser welder and send a machine communication connection, send a machine to be used for carrying the welding wire to handheld laser welder end, the device includes:

the second transmission module is used for sending first indication information to the handheld laser welding gun by the welding host, and the first indication information is used for acquiring the speed of the wire feeder for feeding welding wires so that the speed of the handheld laser welding gun is fed back to the welding host;

the second transmission module is also used for receiving the feedback speed of the handheld laser welding gun by the welding host;

the second processing module is used for determining whether the speed is updated or not by the welding host according to the original speed value of the wire feeder and the speed fed back by the handheld laser welding gun;

and if the speed is updated, the second transmission module is also used for sending the updated speed to the wire feeder by the welding host.

According to the embodiment, the wire feeding speed adjusting method is applied to a handheld laser welding gun, the handheld laser welding gun is in communication connection with a wire feeder, and the wire feeder is used for feeding welding wires to a handheld laser welding gun end. When welding materials by using the handheld laser welding gun, a welder can modify the speed of the wire feeder for transmitting welding wires at any time through the handheld laser welding gun, the handheld laser welding gun responds to received operation and then generates a first operation instruction, and the first operation instruction is used for indicating and adjusting the speed of the wire feeder for transmitting welding wires. And the handheld laser welding gun determines the 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 can transmit welding wires according to the adjusted speed. The speed of welding wire transmission of the wire feeder can be conveniently adjusted by a welder through a handheld laser welding gun, so that the welding efficiency of the welder can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic view of a scenario in which a wire feed speed adjustment method according to an exemplary embodiment of the present application is applicable;

FIG. 2 is a flow chart of a wire feed speed adjustment method provided in an exemplary embodiment of the present application;

FIG. 3 is a schematic diagram of a handheld laser welding gun according to an exemplary embodiment of the present application;

FIG. 4 is a schematic diagram of a micro-control board structure provided in an exemplary embodiment of the present application;

FIG. 5 is a schematic diagram of a micro-control board structure provided in accordance with yet another exemplary embodiment of the present application;

FIG. 6 is a schematic diagram of a handheld laser welding gun workflow provided in an exemplary embodiment of the present application;

FIG. 7 is a flow chart of a wire feed speed adjustment method provided in accordance with yet another exemplary embodiment of the present application;

FIG. 8 is a schematic diagram of a welding host workflow provided in an exemplary embodiment of the present application.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of illustrating the present application and are not to be construed as limiting the present application. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.

Fig. 1 is a schematic diagram of a scenario where the wire feed speed adjustment method according to an exemplary embodiment of the present application is applicable. The welding host is mainly used for generating a laser beam for welding; the wire feeder provides welding wires for welding and communicates with a welding host by adopting an RS232 interface, and the wire feeder feeds the welding wires to a handheld laser welding gun through a wire feeding pipe; the handheld laser welding gun acquires a laser beam output by the welding host through an optical fiber, then the end surface of a material is welded by the laser beam, the handheld laser welding gun and the welding host are communicated by adopting an RS485 interface, a wire feeding bracket is arranged below a welding gun head of the handheld laser welding gun, and the wire feeding bracket is used for fixing a wire feeding pipe of the wire feeding machine; the air compressor is connected with the handheld laser welding gun through a protection air pipe to provide air flow for a welding gun head of the protection handheld laser welding gun; the dust collector is used for absorbing smoke generated when the welding gun head is used for welding, so that the smoke is prevented from damaging workers; the water cooling machine is connected with the handheld laser welding gun and the welding host machine through the cold water pipe respectively and is used for absorbing redundant heat generated by the handheld laser welding gun end and carrying out heat dissipation treatment on a laser in the welding host machine.

FIG. 2 is a flow chart of a wire feed speed adjustment method according to an exemplary embodiment of the present application. The embodiment can be applied to a handheld laser welding gun, the handheld laser welding gun is in communication connection with a wire feeder, the wire feeder is used for feeding welding wires to a handheld laser welding gun end, and a wire feeding speed adjusting method is described below with reference to fig. 1 and 2, and includes the following steps:

s110, the handheld laser welding gun responds to the received operation to generate a first operation instruction.

The first operation instruction is used for indicating and adjusting the speed of the wire feeder for conveying the welding wire.

Illustratively, the first operating instructions are for instructing to increase the speed at which the wire feeder delivers the wire, or,

In the above manner, the content of the first operation instruction is set, so that the speed of the handheld laser welding gun is adjusted correspondingly according to the content of the first operation instruction.

the handheld laser welding gun receives a touch operation, and the touch operation is used for causing voltage update of pins of the handheld laser welding gun. And then the micro control chip of the handheld laser welding gun generates a first operation instruction according to the updated voltage of the pin.

In the mode, the voltage of the pin is updated by utilizing the touch operation, so that the micro control chip can generate the first operation instruction through the updated voltage, the mode is simple, the complexity of a program of the micro control chip and the complexity of a circuit of the micro control board are reduced, and the micro control chip is more suitable for being installed on a handheld laser welding gun.

In one example, as shown in FIG. 3, a handheld laser welding gun includes a gun head that outputs a laser beam, an operator panel, and a micro-control board. The operation panel is located the safety cover outside of welder head's top, and the micro control board is located the safety cover inboard. When the handheld laser welding gun is used, the operation panel faces the user, and the welding gun head faces away from the user. The operation panel is provided with three keys, each key comprises a pin, and the three keys are respectively provided with a mark "+" - "" ok "," + "key for increasing the speed value," - "key for reducing the speed value, and" ok "key for replacing the original speed with the increased speed or the reduced speed. The micro control board is shown in fig. 4 and comprises an STM32 micro control chip, an RS485 chip, a power conversion chip, a USB-to-serial chip, an RS485 interface socket, a power socket, a micro USB socket and a key pin socket. The locating holes of the micro control plate are used to fix the micro control plate inside the protective cover. Wherein the STM32 micro-control chip is configured to perform a wire feed speed adjustment related routine. The RS485 chip is responsible for converting information output by the STM32 micro-control chip into information conforming to the RS485 standard. The power supply conversion chip is responsible for converting an input 5V direct current power supply into a 3.3V direct current power supply used by the micro control chip. The USB-to-serial port chip is mainly responsible for converting information output by the MicroUSB interface into information which can be identified by the STM32 micro-control chip and inputting the information into the STM32 micro-control chip. The RS485 interface socket is used for being connected with a serial port of the welding host through an RS485 communication line. The power socket is used for connecting a 5V direct current power supply. The MicroUSB socket is connected with a MicroUSB data line for downloading programs. Pins of the key pin receptacle include "COM", "+", "-" and "ok". COM is the pin providing the high level, and "+", "-" and "ok" are the pins low. The "+", "-" and "ok" pins in the pin of the key pin socket correspond to the three pins of the three keys "+", "-" and "ok" respectively, which are connected with the operation panel.

On the basis of fig. 3 and 4, the generation of a first operating instruction by the hand-held laser welding gun is illustrated:

for example, the STM32 micro-control chip obtains the level of each pin of the key pin socket in a polling manner. When the "+" key of the operation panel is pressed, the pin "+" of the key pin socket connected with the pin of the "+" key is short-circuited with the pin "COM", and the level of the pin "+" becomes high level. After the STM32 micro-control chip obtains the high level of the pin "+", a first operation instruction is generated, wherein the first operation instruction is used for indicating to increase the speed (Vmm/min) of the welding wire transmitted by the wire feeder, the increased speed is changed to (v+Δv) mm/min, and Δv represents the value of each change of the speed, for example, Δv=5. When an ok button of the operation panel is pressed, a pin ok of the button pin socket connected with a pin of the ok button is short-circuited with a pin COM, and the level of the pin ok becomes a high level. After the STM32 micro-control chip obtains the high level of the pin 'ok', the original value Vmm/min of the speed of the transmission welding wire is updated to be the increased speed value (V+DeltaV) mm/min.

For another example, when the "-" key of the operation panel is pressed, the pin "-" of the key pin socket connected to the pin of the "-" key is short-circuited with the pin "COM", and the level of the pin "-" becomes high. After the STM32 micro-control chip obtains the high level of the pin '-' the first operation instruction is generated, the first operation instruction is used for indicating to reduce the speed (Vmm/min) of the wire feeder for transmitting welding wires, and the reduced speed is changed into (V-delta V) mm/min. When an ok button of the operation panel is pressed, a pin ok of the button pin socket connected with a pin of the ok button is short-circuited with a pin COM, and the level of the pin ok becomes a high level. After the STM32 micro-control chip obtains the high level of the pin 'ok', the original value Vmm/min of the speed of the transmission welding wire is updated to be the reduced speed value (V-delta V) mm/min.

In the mode, when the handheld laser welding gun is used by a user, the operation panel faces the user, the welding gun head faces away from the user, and the user can conveniently and rapidly adjust the wire feeding speed through the operation panel at any time according to requirements.

S120, the handheld laser welding gun determines the adjusted speed according to the first operation instruction.

In one example, a handheld laser welding gun is also in communication with the welding host, the handheld laser welding gun determining an adjusted speed according to a first operating instruction, comprising: first, the handheld laser welding gun receives second indication information from the welding host, wherein the second indication information is used for indicating an initial value of the speed. And then the hand-held laser welding gun determines the adjusted speed according to the first operation instruction and the initial value of the speed.

The initial value of the velocity is, for example, 100mm/min.

In the mode, the initial value of the speed obtained by the handheld laser welding gun is sent by the welding host, and the follow-up scheme is combined to know that the welding host also sends the initial value of the speed to the wire feeder, so that the unification of the initial values of the speeds of the handheld laser welding gun and the wire feeder is realized, and the handheld laser welding gun can accurately adjust the wire feeding speed based on the initial value of the speed.

In the above example, the hand-held laser welding gun acquires an initial value of the speed through interaction with the welding host. In another example, the handheld laser welding gun may also determine an initial value of the speed by interacting with the wire feeder, or the handheld laser welding gun may also receive an input operation indicating the initial value of the speed, such that the initial value of the speed may be determined from the input operation.

In one example, a handheld laser welding gun generates a first operation instruction in response to a received operation, the first operation instruction being used for indicating to adjust a speed of the wire feeder for transmitting welding wires, the handheld laser welding gun determining the adjusted speed according to the first operation instruction, and the method includes: after the initial value of the receiving speed of the handheld laser welding gun is firstly held, whether first indication information from a welding host is received is determined. If the first indication information from the welding host is not received, the handheld laser welding gun determines whether to generate a first operation instruction. If the handheld laser welding gun responds to the received operation, a first operation instruction is generated, the handheld laser welding gun determines that the first operation instruction is generated, and then the adjusted speed is determined according to the first operation instruction.

In one example, a handheld laser welding gun determines an adjusted speed according to a first operating instruction, comprising: if the first operation instruction is used for indicating to increase the speed of the wire feeder for transmitting 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 for indicating to reduce the speed of the wire feeder for transmitting the welding wire, the handheld laser welding gun reduces the original speed value according to the preset variable value, and the reduced speed is the adjusted speed; if the first operation instruction is used for indicating that the original speed value is updated to the latest speed value, the handheld laser welding gun updates the original speed value to the latest speed value, and the speed updated to the latest speed value is the adjusted speed.

For example, after the initial value of the receiving speed of the handheld laser welding gun is received, and it is determined that the first indication information from the welding host is not received, the micro control chip of the handheld laser welding gun determines whether the level of the pin of the key pin socket is changed from the low level to the high level by adopting a mode of polling the level of the pin of the key pin socket. If the level of the pin of the key pin socket is changed from low level to high level, the handheld laser welding gun determines to generate a first operation instruction. And the handheld laser welding gun determines the adjusted speed according to the first operation instruction.

S130, the handheld laser welding gun sends the adjusted speed to the wire feeder so that the wire feeder can transmit welding wires according to the adjusted speed.

Because the wire feeder is usually provided with an RS232 communication interface, the handheld laser welding gun needs to communicate with the wire feeder through an RS232 communication line. As shown in FIG. 5, the micro control board comprises an STM32 micro control chip, a TTL-to-232 chip, a power conversion chip, a USB-to-serial chip, an RS232 interface socket, a power socket, a MicroUSB socket and a key pin socket. The TTL-to-232 chip is used for converting the format of information output by the STM32 micro-control chip into the format of information which can be identified by the RS232 communication interface. The RS232 interface socket is used for connecting an RS232 communication line, and the RS232 communication line is connected with an RS232 communication interface of the wire feeder. The other parts refer to the related description of the microplate shown in fig. 4, and will not be described herein.

The embodiment realizes that the handheld laser welding gun and the wire feeder are directly communicated.

In one example, based on the embodiment of the microplate shown in fig. 4, the handheld laser welding gun is further in communication connection with the welding host through an RS485 communication line, the welding host is in communication connection with the wire feeder through an RS232 communication line, and the handheld laser welding gun sends the adjusted speed to the wire feeder, including:

the handheld laser welding gun receives first indication information from the welding host, the first indication information is used for obtaining the speed determined by the handheld laser welding gun, and the handheld laser welding gun sends the adjusted speed to the welding host so that the welding host sends the adjusted speed to the wire feeder.

Further, if the speed of the handheld laser welding gun is not adjusted, the handheld laser welding gun sends the unadjusted speed to the welding host. That is, the speed determined by the handheld laser torch may be either an adjusted speed or an unadjusted speed stored by the handheld laser torch.

Because the communication distance of the RS485 communication line is longer, the handheld laser welding gun is in communication connection with the welding host through the RS485 communication line, so that the distance that the handheld laser welding gun can move is longer, and the communication distance between the welding host and the wire feeder meets the condition of the RS232 communication line. Therefore, the mode is suitable for a scene with a long moving distance of the handheld laser welding gun.

In combination with the above embodiments, the present application also provides an example of a workflow embodiment of a handheld laser welding gun when a user uses the handheld laser welding gun. As shown in fig. 6, after the handheld laser welding gun is powered on and started, information for indicating the start of welding is sent to the welding host. After receiving the initial value from the speed of the welding host, the handheld laser welding gun determines whether a command from the welding host is received, and the command of the welding host is first indication information or second indication information.

If a command from a welding host is received, the handheld laser welding gun analyzes the content of the command and determines whether the command is second indication information. And if the first instruction information is the second instruction information, modifying the initial value of the speed according to the content of the second instruction information. If the first indication information is not the second indication information, whether the first indication information is determined. If yes, sending the speed determined by the handheld laser welding gun to the welding host, and continuously determining whether a command from the welding host is received or not; if not, alarm processing is carried out. Specifically, the alarm processing includes sending alarm information for prompting the user to receive a command from the welding host computer without identification and continuing to determine whether a command from the welding host computer has been received.

If a command from the welding host is not received, the handheld laser welding gun determines whether touch operation is received. If the touch operation is received, a button of the touch operation is determined to be received in "+" - "" ok ". If the "+" key is pressed, increasing the speed of the wire feeder for transmitting the welding wire, and continuously determining whether a command from a welding host is received; if the "-" key is pressed, reducing the speed of the wire feeder for transmitting the welding wire, and continuously determining whether a command from a welding host is received; if the ok button is pressed, the original value of the speed is updated to the latest value of the adjusted speed, and whether a command from the welding host is received is continuously determined.

FIG. 7 is a flow chart of a wire feed speed adjustment method provided in accordance with yet another exemplary embodiment of the present application. The embodiment can be applied to a welding host, and the handheld laser welding gun is in communication connection with a wire feeder, where the wire feeder is used to feed welding wire to the handheld laser welding gun, and the wire feeding speed adjustment method is described below with reference to fig. 2 and 7, and includes the following steps:

s210, the welding host machine sends first indication information to the handheld laser welding gun, wherein the first indication information is used for obtaining the wire feeding speed determined by the handheld laser welding gun so that the handheld laser welding gun feeds back the speed to the welding host machine.

In one example, before the welding host sends the first indication information to the handheld laser welding gun, the method further comprises:

first, the welding host obtains an initial value of the speed. And then, the welding host machine respectively sends initial values of the speed to the handheld laser welding gun and the wire feeder so that the handheld laser welding gun adjusts the speed according to the initial values of the speed. The welding host computer then queries whether information from the handheld laser welding gun has been received indicating that welding is to be initiated. If not, continuing to inquire whether the information for indicating to start welding is received from the handheld laser welding gun. If yes, the welding host sends first indication information to the handheld laser welding gun, and then receives the feedback speed of the handheld laser welding gun. And determining the latest speed of the wire feeder for transmitting the welding wire according to the initial value of the speed of the wire feeder and the speed fed back by the handheld laser welding gun. The latest wire feeder speed at which the wire is transferred is then sent to the wire feeder. The welding host machine then transmits a laser beam to the handheld laser welding gun and sends information indicating the transmission of the welding wire to the wire feeder with a preset time delay so that the wire feeder transmits the welding wire according to the initial value of the speed.

The preset delay is set to 400 milliseconds, for example.

In the mode, the welding host machine respectively sends the initial values of the speeds to the handheld laser welding gun and the wire feeder, so that the speeds of the handheld laser welding gun and the wire feeder are kept uniform from the beginning, and a user can accurately adjust the speed of the wire feeder for feeding welding wires through the handheld laser welding gun.

In one example, the welding host computer sends second indication information to the handheld laser welding gun, the second indication information being used to indicate an initial value of the speed. After the handheld laser welding gun receives the second indication information, determining an initial value of the speed according to the second indication information.

S220, the welding host receives the feedback speed of the handheld laser welding gun.

S230, the welding host determines whether to update the speed according to the speed of the wire feeder in the current wire feeding process and the speed fed back by the handheld laser welding gun.

And S240, if the speed is updated, the welding host machine sends the updated speed to the wire feeder.

In combination with the above embodiments, the present application also provides an embodiment of a workflow of a welding host. As shown in fig. 8, after the welding host is powered on, the initial value of the speed may be manually set, and then the initial values of the speed are sent to the handheld laser welding gun and the wire feeder, respectively. The welding host inquires whether the information for indicating the start of welding is received from the handheld laser welding gun, if not, the welding host continuously inquires whether the information for indicating the start of welding is received from the handheld laser welding gun; if so, before the laser beam is transmitted to the handheld laser welding gun, the welding host transmits first indication information to the handheld laser welding gun, and then receives the feedback speed of the handheld laser welding gun. And determining whether to update the initial value of the speed according to the initial value of the speed of the wire feeder and the speed fed back by the handheld laser welding gun. The latest speed of the wire feeder for conveying the welding wire is determined. The latest wire feeder speed at which the wire is transferred is then sent to the wire feeder. The welding host then delivers a laser beam to the handheld laser welding gun and sends information to the wire feeder indicating to transfer the welding wire over 400ms so that the wire feeder transfers the welding wire according to the initial value of speed. The welding host sends first indication information to the handheld laser welding gun, and then receives the feedback speed of the handheld laser welding gun. And then determining whether to update the speed according to the speed of the wire feeder in the current wire feeding process and the speed fed back by the handheld laser welding gun.

If the speed is updated, the welding host machine sends the updated speed to the wire feeder, and then inquires whether information for indicating to stop welding from the handheld laser welding gun is received.

If not, the welding host queries whether information for indicating to stop welding is received from the handheld laser welding gun. If so, the welding host stops delivering the laser beam to the handheld laser welding gun, then sends information for indicating stopping delivering the welding wire to the wire feeder, and then continuously inquires whether the information for indicating starting welding from the handheld laser welding gun is received. If not, continuously sending the first indication information to the handheld laser welding gun, and then receiving the feedback speed of the handheld laser welding gun. And then determining whether to update the speed according to the speed of the wire feeder in the current wire feeding process and the speed fed back by the handheld laser welding gun. If the speed is updated, the welding host machine sends the updated speed to the wire feeder, and then inquires whether information for indicating to stop welding from the handheld laser welding gun is received or not until information for indicating to stop welding from the handheld laser welding gun is received.

According to the embodiment, the wire feeding speed adjusting method is applied to a welding host, the welding host is in communication connection with a handheld laser welding gun, the welding host is in communication connection with a wire feeder, and the wire feeder is used for feeding welding wires to the handheld laser welding gun.

The welding host sends first indication information to the handheld laser welding gun, wherein the first indication information is used for obtaining the speed of the wire feeder for feeding welding wires, so that the handheld laser welding gun feeds back the speed to the welding host. After receiving the speed fed back by the handheld laser welding gun, determining whether to update the speed according to the original value of the speed of the wire feeder and the speed fed back by the handheld laser welding gun. And if the speed is updated, the welding host machine sends the updated speed to the wire feeder. According to the embodiment, after the speed of the welding wire is transmitted by the handheld laser welding gun adjusting wire feeder, the adjusted speed is timely transmitted to the wire feeder, so that a welder can conveniently adjust the speed of the welding wire transmitted by the wire feeder through the handheld laser welding gun, and the welding efficiency of the welder can be improved.

Referring to fig. 3, the embodiment of the application provides a handheld laser welding gun, which is in communication connection with a wire feeder, wherein the wire feeder is used for feeding welding wires to a handheld laser welding gun end, and the handheld laser welding gun comprises a welding gun head, an operation panel and a micro control board;

the welding gun head is used for outputting a laser beam for welding materials;

the operation panel is positioned on the outer side of the protective cover above the welding gun head, faces a user holding the laser welding gun, and is provided with at least one key for acquiring the operation of the user;

the micro-control board is located inside the protective cover and is used to perform the wire feed speed adjustment method of any of the above-described methods S110-S130.

Other implementations and effects are described in the above methods S110 to S130, and are not described herein.

In combination with the above embodiment of the method for adjusting the wire feeding speed, the present application further provides a wire feeding speed adjusting device, which is applied to a welding host, the welding host is respectively in communication connection with a handheld laser welding gun and a wire feeder, the wire feeder is used for feeding welding wires to a handheld laser welding gun end, and the device includes:

Other implementations and effects are described in the above methods S210 to S240, and are not described herein.

The basic principles of the present application have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are merely examples and not limiting, and these advantages, benefits, effects, etc. are not to be considered as necessarily possessed by the various embodiments of the present application. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the application is not intended to be limited to the details disclosed herein as such.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts of the figures may include a plurality of sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being sequential, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.

The block diagrams of the devices, apparatuses, devices, systems referred to in this application are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.

It is also noted that in the apparatus, devices and methods of the present application, the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent to the present application.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.

Claims

1. The wire feeding speed adjusting method is characterized by being applied to a handheld laser welding gun, wherein the handheld laser welding gun is in communication connection with a wire feeder, and the wire feeder is used for feeding welding wires to the handheld laser welding gun end, and the method comprises the following steps:

and the handheld laser welding gun sends the adjusted speed to the wire feeder so that the wire feeder can transmit welding wires according to the adjusted speed.

2. The method of claim 1, wherein the handheld laser welding torch is further in communication with a welding host, the handheld laser welding torch transmitting the adjusted speed to the wire feeder, comprising:

the handheld laser welding gun receives first indication information from the welding host, wherein the first indication information is used for acquiring the speed determined by the handheld laser welding gun;

and the handheld laser welding gun sends the adjusted speed to the welding host, so that the welding host sends the adjusted speed to the wire feeder.

3. The method of claim 2, wherein the determining the adjusted speed by the handheld laser welding gun according to the first operating instruction comprises:

4. A method according to claim 2 or 3, wherein the first operating instruction is for instructing to adjust the speed at which the wire feeder transfers the welding wire, comprising:

the first operating instruction is used for indicating to increase the speed of the wire feeder for conveying welding wires, or,

the first operating instruction is used for instructing to reduce the speed of the wire feeder for conveying welding wires, or,

5. The method of claim 4, wherein the determining the adjusted speed by the handheld laser welding gun according to the first operating instruction comprises:

if the first operation instruction is used for indicating to increase the speed of the welding wire transmitted by the wire feeder, the handheld laser welding gun increases the original value of the speed according to a preset variable value, and the increased speed is the adjusted speed;

if the first operation instruction is used for indicating to reduce the speed of the wire feeder for transmitting 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;

and if the first operation instruction is used for indicating to update the original value of the speed 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.

6. The method of claim 1, wherein the handheld laser welding gun generates a first operation instruction in response to the received operation, comprising:

7. The wire feeding speed adjusting method is characterized by being applied to a welding host, wherein the welding host is respectively in communication connection with a handheld laser welding gun and a wire feeder, and the wire feeder is used for feeding welding wires to the handheld laser welding gun end, and the method comprises the following steps:

the welding host receives the speed fed back by the handheld laser welding gun;

and if the speed of the wire feeder needs to be updated, the welding host machine sends the updated speed to the wire feeder.

8. The method of claim 7, wherein the method further comprises:

9. The handheld laser welding gun is in communication connection with a wire feeder, the wire feeder is used for feeding welding wires to the handheld laser welding gun end, and the handheld laser welding gun comprises a welding gun head, an operation panel and a micro control board;

the welding gun head is used for outputting a laser beam for welding materials;

the operation panel is positioned on the outer side of the protective cover above the welding gun head, faces to a user of the handheld laser welding gun, and is provided with at least one key for receiving operation of the user;

the micro-control board is located inside the protective cover for performing the wire feed speed adjustment method of any one of claims 1 to 6.

10. Wire feed speed adjusting device, its characterized in that is applied to the welding host computer, welding host computer respectively with handheld laser welder and send a machine communication connection, send a machine to be used for to handheld laser welder end carries the welding wire, the device includes:

the second transmission module is used for sending first indication information to the handheld laser welding gun by the welding host, wherein the first indication information is used for obtaining the speed of the wire feeder for feeding welding wires so that the handheld laser welding gun feeds back the speed to the welding host;

the second transmission module is also used for receiving the speed fed back by the handheld laser welding gun by the welding host;

the second processing module is used for determining whether to update the speed by the welding host according to the original value of the speed of the wire feeder and the speed fed back by the handheld laser welding gun;

and if the speed is updated, the second transmission module is further used for sending the updated speed to the wire feeder by the welding host.