Handheld laser welding gun capable of welding various materials

Abstract

The invention provides a handheld laser welding gun capable of welding various materials, and belongs to the technical field of welding guns, the handheld laser welding gun comprises a welding gun main body and a bottom cover which are connected to form a mounting cavity, an irradiation assembly is arranged in the mounting cavity and comprises a main body shell and an irradiation pipe, a connecting plate is arranged at one end of the welding gun main body, and the welding gun main body is connected with the bottom cover; a rotating assembly is arranged on one side of the connecting plate, and the multiple sets of lasers are installed on the rotating assembly. A controller and a recognition assembly are arranged on the two sides of the welding gun body respectively, a handle is arranged at the top of the welding gun body, a control key is arranged at one end of the handle, and a power block is arranged at one end of the welding gun body and connected with an external power source through a power line. According to the welding gun, different materials can be recognized through the recognition assembly, the multiple sets of lasers with different wavelengths are installed on the rotating assembly, the proper lasers can be selected according to needs through rotation of the rotating assembly, welding defects caused by wavelength mismatching are effectively avoided, and the welding seam quality and the welding strength are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding guns, and more specifically, particularly relates to a handheld laser welding gun capable of welding a variety of materials. Background Art

[0002] The handheld laser welding gun is a common welding equipment. It generates a high-energy-density laser beam through the laser to shoot at the surface of the material to be welded, so that the material is partially melted instantly to form a high-quality molten pool, so as to achieve the purpose of welding. It is widely used in different fields. At the same time, the handheld laser welding gun also has high operational flexibility, reduces the space restrictions on the equipment, can be operated in complex structures and narrow spaces, and can adapt to the welding needs of various angles and positions. However, in the welding process, it is often necessary to weld a variety of different materials. When welding different materials, the wavelength requirements of the laser emitted by the laser are different. However, traditional handheld laser welding guns are often fixed structures and only use a single laser for welding operations. As a result, when welding different materials, the laser wavelength cannot be adjusted according to the material characteristics, resulting in poor welding effects, poor weld quality and insufficient welding strength, resulting in reduced quality and efficiency of welding work. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a handheld laser welding gun that can perform welding of multiple materials, so as to solve the technical problems in the prior art that the traditional handheld laser welding gun uses a single laser, which makes it impossible to focus the laser wavelength according to different materials, resulting in poor welding effect, poor welding quality and insufficient strength.

[0004] The purpose and effect of the handheld laser welding gun capable of welding various materials of the present invention are achieved by the following specific technical means: A handheld laser welding gun capable of welding a variety of materials comprises a welding gun body and a bottom cover, wherein the bottom of the welding gun body is connected to the bottom cover to form an installation cavity, an irradiation component is arranged in the installation cavity, the irradiation component comprises a main body shell and an irradiation tube, the irradiation tube is installed in the main body shell, a connecting plate is arranged at one end of the welding gun body, a light-through hole is opened in the connecting plate corresponding to the irradiation tube, and a light-emitting sleeve is arranged at the bottom of the bottom cover; a rotating component is arranged at one side of the connecting plate, and multiple groups of lasers are installed on the rotating component, and one group of the lasers is aligned with the light-through hole; a controller is arranged at one side of the welding gun body, and an identification component is arranged at the other side; a grip is arranged at the top of the welding gun body, a control button is arranged at one end of the grip, a power block is arranged at one end of the welding gun body, and the power block is connected to an external power supply through a power cord.

[0005] According to a preferred embodiment, the irradiation tube includes a first inner tube and a second inner tube, and a main body cover is detachably provided on one side of the main body shell to form a main body cavity, and the first inner tube and the second inner tube are both installed in the main body cavity; the second inner tube is located below the first inner tube and is perpendicular to the first inner tube, one end of the first inner tube and the second inner tube are both located outside the main body cavity, and a limit plate is provided, and the limit plate is in contact with the main body shell; the length of the second inner tube is shorter than that of the first inner tube, and positioning blocks are provided on both sides of the first inner tube and the second inner tube, and the main body shell and the main body cover have multiple groups of positioning grooves corresponding to the positioning blocks, and the positioning blocks are clamped in the positioning grooves.

[0006] According to a preferred embodiment, the irradiation assembly also includes a collimator, a focusing mirror and a reflector, the collimator being close to one end of the laser, the focusing mirror being located above the light emitting sleeve, the first inner tube and the second inner tube being provided with mounting grooves, the collimator and the focusing mirror being respectively clamped in two groups of the mounting grooves; the reflector being located between the ends of the first inner tube and the second inner tube being close to each other, a mounting frame being provided in the main body shell, the mounting frame being arranged at an angle, the reflector being clamped in the mounting frame, one side of the reflector corresponding to one end of the first inner tube and the second inner tube; protective mirrors are detachably provided at both the first inner tube and one end of the light emitting sleeve.

[0007] According to a preferred embodiment, the rotating assembly includes a rotating disk, which is located on one side of the connecting plate and is rotatably connected to the connecting plate. A motor is provided on the other side of the connecting plate, and the shaft end of the motor is connected to the rotating disk. A plurality of mounting platforms are provided on the circumference of the rotating disk, and the mounting platforms are hollow. A space is formed by the contact between the mounting platforms and the connecting plate, and the laser is mounted on the mounting platforms by a plurality of screws. A visual recognition module is provided on the welding gun body, and a label plate that can be recognized by the visual recognition module is provided on one side of the mounting platform.

[0008] According to a preferred embodiment, the rotating assembly also includes a connecting sleeve, a connecting frame is provided at one end of the welding gun body, the connecting sleeve is detachably connected to the connecting frame, a supporting column is provided on the rotating disk, a connecting head is provided at one end of the supporting column, a connecting wire is provided on the laser, and one end of the connecting wire is connected to the connecting head; multiple groups of conductive plates are provided on the connecting head corresponding to multiple groups of lasers, and the conductive plates are arc-shaped, and a conductive block is provided in the connecting sleeve, and the conductive block is connected to one group of the conductive plates; a protective cover is provided on one side of the connecting plate, and the protective cover is connected to the connecting plate to form a protective cavity, the rotating disk and multiple groups of lasers are located in the protective cavity, and the connecting sleeve is penetrated into the protective cover.

[0009] According to a preferred embodiment, the identification component includes a fixed frame and a fixed rod, the fixed frame is installed on one side of the welding gun body, the fixed frame is provided with a fixed through hole, the fixed rod is inserted into the fixed through hole, a slide rail is arranged above the fixed rod, the slide rail is installed on the fixed frame, an electric cylinder is arranged on one side of the fixed frame, a sliding block is arranged at the shaft end of the electric cylinder, the sliding block is between the slide rail and the fixed rod, and is slidably connected to the slide rail; an inclined slope is arranged at the bottom of the sliding block, a roller is arranged at the top of the fixed rod, and the roller is in contact with the inclined broken surface; a first spring is arranged between the fixed rod and the fixed frame, and is sleeved on the fixed rod.

[0010] According to a preferred embodiment, the identification component also includes a micro power module and a voltage sensor, a fixed horizontal plate is provided at one end of the fixed rod, and the micro power module and the voltage sensor are both installed on the fixed horizontal plate; two groups of contact rods are provided at the bottom of the fixed horizontal plate, a first metal head is provided at one end of the contact rod, one end of the metal plate passes through the contact rod and is connected to the first metal head, and both ends of the micro power module are respectively connected to the first metal head through wires; an insulating plate is provided on the metal plate, a second metal head is provided on the insulating plate, and both ends of the voltage sensor are respectively connected to the second metal head through the wires.

[0011] According to a preferred embodiment, the identification component also includes a micro power module and a voltage sensor, a fixed horizontal plate is provided at one end of the fixed rod, and the micro power module and the voltage sensor are both mounted on the fixed horizontal plate; two groups of contact rods are provided at the bottom of the fixed horizontal plate, a fixing hole is provided at one end of the contact rod, a first metal head is passed through the fixing hole, a slide groove is provided on one side of the contact rod, the metal plate passes through the slide groove and is connected to the first metal head, a second spring is provided in the fixing hole, and the second spring is located between the first metal head and the contact rod; both ends of the micro power module are connected to the first metal head through wires; an insulating plate is provided on the metal plate, a second metal head is provided on the insulating plate, and both ends of the voltage sensor are connected to the second metal head through the wires.

[0012] According to a preferred embodiment, a slot is provided on the handle, a pressing block is provided above the handle, the pressing block is clamped in the slot, two groups of third springs are provided in the slot, two ends of the third springs are respectively connected to the handle and the pressing block, and the pressing block is slidably connected to the handle; a pressure sensor is provided in the slot, and a pressing contact is provided at the bottom of the pressing block corresponding to the pressure sensor; an assembly slot is provided at the bottom of the light emitting sleeve, an infrared sensor is provided under the bottom cover, and the infrared sensor is clamped in the assembly slot.

[0013] According to a preferred embodiment, a front sight plate is rotatably provided at one end of the welding gun body, the front sight plate is made of transparent material, a front sight is provided on the front sight plate, a buckle is provided on the welding gun body, and the front sight plate is connected to the welding gun body through the buckle; a laser generator is provided on one side of the front sight plate, and the laser generator is installed on the welding gun body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The welding gun body is connected with the bottom cover to form an installation cavity, an irradiation component is arranged in the installation cavity, a rotating component is arranged at one end of the irradiation component, the rotating component is installed on the connecting plate on the welding gun body, and multiple groups of lasers are installed on the rotating component. The welding operation of the material is realized by the cooperation of the laser and the irradiation component; the rotating disk in the rotating component is rotatably connected to the connecting plate and driven by a motor, and multiple groups of mounting tables are arranged on the circumference of the rotating disk, and the lasers are installed on the mounting tables; during the welding process, when it is necessary to weld different materials, the rotating disk starts to rotate through the rotation of the motor, and the lasers of different wavelengths installed thereon also move accordingly, until the laser of the appropriate wavelength matching the material to be welded is accurately rotated to the position corresponding to the irradiation component, and by switching lasers of different wavelengths, the energy absorption efficiency of different materials during welding is effectively improved, welding defects caused by wavelength mismatch are avoided, and the weld quality and welding strength are significantly improved, so that better results can be obtained for both metal and metal and metal and non-metal welding.

[0015] 2. An identification component is provided on one side of the welding gun body. The identification component can control the fixed horizontal plate and the components thereon to perform lifting and lowering movements through the cooperation of the fixed rod, the electric cylinder, the sliding block and other components; two groups of contact rods are provided at the bottom of the fixed horizontal plate, and a first metal head is provided at the bottom of the contact rod, and both ends of the micro power module are connected to the metal plates clamped on the two groups of first metal heads through wires; at the same time, a voltage sensor is installed on the fixed horizontal plate, an insulating plate is provided on the metal plate, and a second metal head is provided on the insulating plate, and is connected to the pressure sensor through a wire; when it is necessary to identify the material, the fixed horizontal plate is lowered, so that the two groups of first metal heads and the second metal head are in contact with the material, the micro power module is started, and the current starts from the micro power module, passes through the first metal head and the wire, flows through the material to be identified, and then returns to the micro power module to form a complete circuit. In this process, the pressure sensor can effectively measure the voltage value in the circuit by virtue of its performance; the resistance of the material can be calculated by the current value and the voltage value. Since materials of different materials have different resistance characteristics, these characteristics are inherent physical properties of the material itself. Therefore, the specific material of the material can be distinguished by analyzing and judging the calculated resistance value. Once the material of the material is determined, the laser with the appropriate wavelength can be selected from multiple lasers based on the difference in the absorption effect of different materials on lasers of different wavelengths, thereby achieving high-quality welding of different materials.

[0016] 3. The welding gun has a card slot on the handle, and a movable pressing block is arranged in the card slot. The pressing block is connected to the handle through two sets of third springs, thereby giving the pressing block upper and lower elasticity. A pressure sensor is arranged in the card slot, and a pressing contact point is arranged at the bottom of the pressing block. When a force is applied to the pressing block, the third spring will be contracted, and the pressing fast phase moves in the card slot, and the pressing contact point will contact the pressure sensor; at the same time, an infrared sensor is arranged under the bottom cover, and the infrared sensor and the pressure sensor are both connected to the controller to form a chain structure; when in use, the user picks up the entire welding gun by holding the handle. When holding the handle, pressure is applied to the pressing block, so that the pressing contact point is in contact with the pressure sensor, thereby completing a trigger preparation action; next, the user should aim the welding gun at the required welding material, and detect the distance between the two through the infrared sensor. When it reaches a certain preset value, the laser will run. The pressure sensor and the infrared sensor cooperate to effectively avoid safety hazards caused by misoperation or improper distance, thereby improving the safety of the welding gun when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention after assembly; Figure 2 It is a schematic diagram of the structure after the present invention is split; Figure 3 This is a schematic diagram of the structure of the identification component after being disassembled according to the first embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the identification component after being disassembled according to the second embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the irradiation component of the present invention after being disassembled; Figure 6 It is a structural schematic diagram of the main shell; Figure 7 is a schematic diagram of the structure of the contact column; Figure 8 It is a schematic diagram of the structure of the bottom cover; Fig. 9 It is a schematic diagram of the structure of the pressing fast; Fig.10 is a schematic diagram of the structure of the connecting sleeve; Fig.11 Figure 2 A partial enlarged view of area a in the middle; Fig.12 yes Figure 2 A partial enlarged view of area b; Fig.13 yes Figure 3 A partial enlarged view of the middle c area; Fig.14 This is the principle block diagram of the laser; Fig.15 is a block diagram of the identified components.

[0018] In the figure, the corresponding relationship between the component names and the figure numbers is as follows: 101. welding gun body; 102. bottom cover; 103. connecting plate; 104. light hole; 105. light emitting sleeve; 106. grip; 107. slot; 108. pressing block; 109. pressing contact; 110. assembly slot; 111. sight plate; 21. laser; 22. controller; 23. control button; 24. power block; 25. pressure sensor; 26. infrared sensor; 27. laser generator; 301. first inner tube; 302. second inner tube; 303. main body cover; 304. limit plate; 305. positioning block; 306. positioning slot; 307. collimator; 308. focusing lens; 309. reflector; 310. mounting slot; 311. mounting frame; 312. protective lens; 313. Main body shell; 401, rotating disk; 402, mounting table; 403, visual recognition module; 404, label plate; 405, connecting sleeve; 406, motor; 407, connecting frame; 408, supporting column; 409, connecting head; 410, conductive plate; 411, conductive block; 412, protective cover; 501, fixed frame; 502, fixed rod; 503, fixed through hole; 504, slide rail; 505, electric cylinder; 506, sliding block; 507, roller; 508, micro power module; 509, voltage sensor; 510, fixed horizontal plate; 511, contact rod; 512, first metal head; 513, metal plate; 514, insulating plate; 515, second metal head; 516, fixing hole; 517, slide groove. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but cannot be used to limit the scope of protection of the present invention.

[0020] Embodiment 1: Figures 1 to 15As shown, the present invention provides a handheld laser welding gun capable of welding various materials, including a welding gun body 101 and a bottom cover 102. The bottom of the welding gun body 101 is connected to the bottom cover 102, and the two together form a mounting cavity. An irradiation assembly is arranged in this mounting cavity, and the irradiation assembly is composed of a main body shell 313 and an irradiation tube. The irradiation tube is installed in the main body shell 313, which provides a basic guarantee for subsequent laser transmission and other operations. A connecting plate 103 is arranged at one end of the welding gun body 101, and a light hole 104 is opened on the connecting plate 103 at a position corresponding to the irradiation tube, and a light emitting sleeve 105 is arranged at the bottom of the bottom cover 102, which work together to ensure that the laser can be accurately emitted according to a predetermined path so as to act on the welding material. The laser 21 can adopt a Han's Laser RFL-C2000W laser. A rotating assembly is provided on one side of the connecting plate 103, and multiple groups of lasers 21 are installed on the rotating assembly, and one group of lasers 21 can be accurately aligned with the light hole 104. Through this switchable multi-laser 21 setting, it can better adapt to the different requirements of different materials for welding parameters such as laser wavelength. A controller 22 is provided on one side of the welding gun body 101. The controller 22 is connected to the laser 21 and other components, and is responsible for regulating various parameters and operations. The controller 22 can use an OMRON NJ501-1300 controller; an identification component is provided on the other side, which can be used for accurate identification of welding materials and other related operations. A handle 106 is provided on the top of the welding gun body 101, and a control button 23 is provided at one end of the handle 106. The control button 23 is electrically connected to the controller 22. During the welding process, the control button 23 is used to start and stop the laser 21. A power block 24 is also provided at one end of the welding gun body 101. The power block 24 is stably connected to an external power source through a power line to provide continuous power support for the operation of the entire welding gun.

[0021] The irradiation tube includes a first inner tube 301 and a second inner tube 302. A main body cover plate 303 is detachably provided on one side of the main body shell 313 to form a regular main body cavity, and the first inner tube 301 and the second inner tube 302 are both installed in this main body cavity, providing an irradiation channel for the laser beam for the transmission of the laser. Among them, the second inner tube 302 is located below the first inner tube 301 and is in a vertical state with the first inner tube 301. One end of the first inner tube 301 and the second inner tube 302 both extend outside the main body cavity, and a limit plate 304 is provided at the end. These limit plates 304 can contact with the main body shell 313, play a good positioning and limiting role, and ensure that the position of the inner tube in the cavity is accurate and stable. The length of the second inner tube 302 is shorter than that of the first inner tube 301. Positioning blocks 305 are provided on both sides of the first inner tube 301 and the second inner tube 302. Correspondingly, a plurality of groups of positioning grooves 306 are accurately provided on the main shell 313 and the main cover plate 303. The positioning blocks 305 can be stuck in these positioning grooves 306, further enhancing the stability of the inner tube installation, so that the entire irradiation tube can maintain a good structural state in the main cavity, laying a foundation for the stability of laser transmission.

[0022] The irradiation assembly also includes a collimator 307, a focusing lens 308 and a reflector 309. The collimator 307 is located at one end close to the laser 21. Its function is to collimate the light emitted by the laser 21 so that the light can be propagated more regularly along a predetermined direction. The focusing lens 308 is placed above the light-emitting sleeve 105. Its main function is to focus the transmitted laser so as to form a light spot with highly concentrated energy on the surface of the welding material, thereby achieving efficient welding operation. Special mounting grooves 310 are provided on the first inner tube 301 and the second inner tube 302. The collimator 307 and the focusing lens 308 can be accurately and accurately clamped in these two sets of mounting grooves 310, which not only facilitates the installation and removal of optical components, but also ensures their position accuracy during the working process. The reflector 309 is located between the ends of the first inner tube 301 and the second inner tube 302, and a mounting frame 311 in an inclined state is arranged inside the main shell 313. The reflector 309 can be firmly fixed in the mounting frame 311, and one side of the reflector 309 can accurately correspond to one end of the first inner tube 301 and the second inner tube 302. By setting the reflector 309, the propagation path of the laser can be changed, so that it can be transmitted according to the designed route in the irradiation tube, and the transmission effect of the laser is further optimized. In order to protect these important optical components, a protective mirror 312 is detachably arranged at one end of the first inner tube 301 and the light-emitting sleeve 105. The protective mirror 312 can effectively block impurities such as spatter and dust generated during welding, and prevent them from adhering to optical components such as the collimator 307 and the focusing lens 308, thereby ensuring that the optical components always maintain good light transmittance and optical performance, ensuring the accuracy and stability of laser transmission, and providing strong support for continuous and stable welding work.

[0023] A light emitting sleeve 105 is provided on the bottom cover 102 of the welding gun. The light emitting sleeve 105 plays a key role in guiding the emission of the laser beam, and a through groove is provided on its surface so that the beam expander lens can be stuck therein. The beam expander lens is located between the focusing lens 308 and the protective lens 312, forming an important link in the laser transmission path. In the actual welding process, the operator can flexibly and selectively use the beam expander lens according to the specific welding requirements. When encountering situations where it is necessary to adjust the diameter and divergence angle of the laser beam, the beam expander lens can play its unique role and effectively improve the welding effect.

[0024] like Figure 2 , Fig.10 , Fig.12As shown, the rotating assembly includes a rotating disk 401, which is mounted on one side of the connecting plate 103 and is rotatably connected to the connecting plate 103, so that the rotating disk 401 can rotate around the axis. A motor 406 is provided on the other side of the connecting plate 103, and the shaft end of the motor 406 is connected to the rotating disk 401. The start and stop of the motor 406 is controlled by the controller 22. The power generated by the motor 406 during operation can be accurately transmitted to the rotating disk 401, thereby driving it to rotate. A plurality of mounting platforms 402 are arranged on the peripheral side of the rotating disk 401. The mounting platforms 402 are hollow. When they are in contact with the connecting plate 103, a relatively independent space is formed, which effectively prevents the irradiation path from being exposed to the outside world. The laser 21 is stably mounted on these mounting platforms 402 by a plurality of screws. This mounting method not only ensures the stability of the laser 21, but also facilitates subsequent maintenance and replacement operations. In order to realize the identification and monitoring of different lasers 21, a visual recognition module 403 is specially arranged on the welding gun body 101. In conjunction with this, a label plate 404 that can be easily identified by the visual recognition module 403 is arranged on one side of the mounting platform 402. The label plate 404 can be of different colors. Different mounting platforms 402 are identified by the visual recognition module 403. Through this identification mechanism, the status of each laser 21 can be grasped in real time and the required laser 21 can be accurately switched. The visual recognition module 403 can adopt the OpenMV H7 Plus visual recognition module.

[0025] The rotating assembly also includes a connecting sleeve 405, and a connecting frame 407 is provided at one end of the welding gun body 101. The connecting sleeve 405 and the connecting frame 407 are detachably connected, which facilitates the assembly, disassembly and maintenance of the equipment. A supporting column 408 is provided on the rotating disk 401, and a connecting head 409 is provided at one end of the supporting column 408. The laser 21 is equipped with a connecting wire, and one end of the connecting wire is connected to the connecting head 409. On the connecting head 409, multiple groups of conductive plates 410 are provided corresponding to multiple groups of lasers 21. The conductive plates 410 present an arc shape, and a conductive block 411 is provided inside the connecting sleeve 405. The conductive block 411 can achieve a stable connection with one group of conductive plates 410, thereby ensuring the stable transmission of electrical energy of the laser 21 during the rotation process, and avoiding problems such as abnormal laser output due to unstable electrical connection.

[0026] In order to protect the rotating disk 401 and the multiple groups of lasers 21 from interference and damage from external environmental factors, a protective cover 412 is provided on one side of the connecting plate 103. The protective cover 412 is connected to the connecting plate 103, and the two together form a closed protective cavity. The rotating disk 401 and the multiple groups of lasers 21 are both placed in this protective cavity. At the same time, the connecting sleeve 405 is inserted into the protective cover 412, which does not affect the realization of its electrical conductivity and other functions, and further enhances the integrity and protection performance of the entire rotating assembly.

[0027] like Figure 2 , Figure 3 , Fig.13 As shown, the identification component includes a fixed frame 501 and a fixed rod 502. The fixed frame 501 is installed on one side of the welding gun body 101, providing a stable support foundation for the entire identification component. A fixed through hole 503 is provided on the fixed frame 501, and the fixed rod 502 is inserted into the fixed through hole 503. A plurality of groups of protrusions are provided in the fixed through hole 503. A plurality of groups of grooves are provided on the fixed rod 502, and the protrusions are stuck in the grooves, so that the fixed rod 502 can move up and down within the limited range of the fixed frame 501. A slide rail 504 is provided above the fixed rod 502, and the slide rail 504 is also installed on the fixed frame 501, providing a smooth track for the sliding of subsequent components. One side of the fixed frame 501 is equipped with an electric cylinder 505, which serves as a power source, and a sliding block 506 is provided at its shaft end. The sliding block 506 is located between the slide rail 504 and the fixed rod 502, and can be slidably connected with the slide rail 504, so that when the electric cylinder 505 is started, the sliding block 506 can slide smoothly along the slide rail 504, and then interact with the roller 507 on the top of the fixed rod 502 through the inclined slope provided at its bottom. The contact between the roller 507 and the inclined slope enables the sliding action of the sliding block 506 to be converted into an upward and downward pushing action on the fixed rod 502. At the same time, a first spring is provided between the fixed rod 502 and the fixed frame 501, and the first spring is sleeved on the fixed rod 502. When the fixed rod 502 is pushed up or down, the first spring can play a role of buffering and resetting, ensuring the stability of the entire structure and the accuracy of operation.

[0028] The identification component also includes a micro power module 508 and a voltage sensor 509. A fixed horizontal plate 510 is provided at one end of the fixed rod 502, and the micro power module 508 and the voltage sensor 509 are both installed on the fixed horizontal plate 510. Two groups of contact rods 511 are provided at the bottom of the fixed horizontal plate 510, and a first metal head 512 is provided at one end of the contact rod 511. One end of the metal plate 513 passes through the contact rod 511 to connect with the first metal head 512, and the two ends of the micro power module 508 are closely connected to the first metal head 512 through wires. In this way, the micro power module 508 can provide power support for the subsequent circuit loop through the first metal head 512 and the metal plate 513. The micro power module 508 can adopt an A2405D-2W micro power module. An insulating plate 514 is provided on the metal plate 513, and a second metal head 515 is further provided on the insulating plate 514. The two ends of the voltage sensor 509 are connected to the second metal head 515 through wires. When the entire identification component contacts the welding material for identification operation, the micro power module 508 is started, and the current flows through a specific circuit. The voltage sensor 509 can measure the voltage value in the circuit through the connection with the second metal head 515, thereby providing important data basis for accurate identification of the material of the welding material and other related operations, and can effectively realize the rapid and accurate identification of the welding material, thereby providing a strong guarantee for the smooth progress of the welding work. The voltage sensor 509 can adopt the LV25-P voltage sensor.

[0029] like Figure 2 , Fig. 9 , Fig.11As shown, a slot 107 is provided on the handle 106, and a pressing block 108 is provided above the handle 106. The pressing block 108 can be clamped in the slot 107, so that the two can cooperate. Two groups of third springs are provided in the slot 107, and the two ends of the two groups of third springs are firmly connected to the handle 106 and the pressing block 108 respectively. With the elastic effect of the third spring, a slidable connection is formed between the pressing block 108 and the handle 106. When the operator holds the handle 106 and applies a certain pressure to the pressing block 108, the pressing block 108 will slide in the slot 107 along the elastic force direction of the spring. A pressure sensor 25 is also provided in the card slot 107, and a pressing contact 109 is provided at the position corresponding to the pressure sensor 25 at the bottom of the pressing block 108. When the pressing block 108 slides, the pressing contact 109 will contact the pressure sensor 25, thereby triggering the corresponding operation instruction, so that the operator can conveniently control some functions of the welding gun through a simple pressing action. The pressure sensor 25 can adopt the MPX5700AP pressure sensor. An assembly groove 110 is provided at the bottom of the light-emitting sleeve 105, and the assembly groove 110 provides a suitable space for the installation of subsequent components. An infrared sensor 26 is provided below the bottom cover 102, and the infrared sensor 26 can be stuck in the assembly groove 110. When in use, the user holds the handle 106 to pick up the entire welding gun. When holding the handle 106, pressure is applied to the pressing block 108, thereby achieving contact between the pressing contact 109 and the pressure sensor 25, thereby completing a trigger preparation action; next, the user needs to aim the welding gun at the required welding material, and use the infrared sensor 26 to detect the distance between the two. When it reaches a certain preset value, the laser 21 will not operate. The pressure sensor 25 cooperates with the infrared sensor 26 to effectively avoid safety hazards caused by misoperation or improper distance, thereby improving the safety of the welding gun when in use. The infrared sensor 26 can use the GP2Y0A21YK0F infrared sensor.

[0030] One end of the welding gun body 101 is rotatably provided with a front sight plate 111, which is made of a transparent material. This transparent property enables the operator to clearly observe the welding target area through it. The front sight plate 111 is provided with a front sight, which, like the aiming device on a firearm, can help the operator to more accurately aim at the welding part. The welding gun body 101 is provided with a buckle, and the front sight plate 111 is connected to the welding gun body 101 through the buckle, which not only facilitates the opening and closing operation of the front sight plate 111, but also ensures its stability during normal use. A laser generator 27 is provided on one side of the front sight plate 111, and the laser generator 27 is installed on the welding gun body 101. When auxiliary aiming and other operations are required, the laser generator 27 can emit a red laser beam, which cooperates with the front sight to further improve the aiming accuracy, so as to better complete the welding task. The laser generator 27 can use the HL6358G3 laser generator.

[0031] Embodiment 2: Based on the handheld laser welding gun capable of welding multiple materials provided in Embodiment 1 of the present application, Embodiment 2 of the present application proposes a handheld laser welding gun capable of welding multiple materials. Embodiment 2 is only a preferred embodiment of Embodiment 1, and the implementation of Embodiment 2 will not affect the independent implementation of Embodiment 1. Embodiment 2 of the present invention will be further described below.

[0032] like Figure 4 , Figure 7As shown, the identification component also includes a micro power module 508 and a voltage sensor 509. A fixed horizontal plate 510 is provided at one end of the fixed rod 502, and the micro power module 508 and the voltage sensor 509 are both installed on the fixed horizontal plate 510. Two groups of contact rods 511 are provided at the bottom of the fixed horizontal plate 510. A fixing hole 516 is provided at one end of the contact rod 511, and a first metal head 512 is inserted into the fixing hole 516. At the same time, a slide groove 517 is also provided on one side of the contact rod 511, and the metal plate 513 can pass through the slide groove 517 and connect with the first metal head 512. A second spring is also provided in the fixing hole 516, and the second spring is located between the first metal head 512 and the contact rod 511. When the contact rod 511 contacts the surface of the welding material, the second spring can play a buffering role, which not only ensures the stability of the contact, but also prevents damage to the components due to excessive extrusion. The two ends of the micro power module 508 are connected to the first metal head 512 through wires, and the micro power module 508 can provide power for the subsequent circuit loop through the first metal head 512 and the metal plate 513. An insulating plate 514 is provided on the metal plate 513, and a second metal head 515 is further provided on the insulating plate 514. The two ends of the voltage sensor 509 are connected to the second metal head 515 through wires. When the material identification operation is performed, the entire loop is formed, and the voltage sensor 509 can measure the voltage value in the loop by virtue of the connection with the second metal head 515, thereby providing key data basis for accurately judging the characteristics of the welding material.

[0033] The difference between the second embodiment and the first embodiment is that a fixing hole 516 is provided on the contact rod 511, the first metal head 512 is inserted into the fixing hole 516, and a sliding groove 517 is provided on the contact rod 511, the metal plate 513 passes through the sliding groove 517 and is clamped on the first metal head 512, and the metal plate 513 plays a role of limiting the first metal head 512, so that the first metal head 512 can move within a certain range, and a second spring is provided in the fixing hole 516, and the second spring can play a buffering role when the contact rod 511 contacts the surface of the welding material, which not only ensures the stability of the contact, but also prevents damage to the components due to excessive extrusion. The remaining conditions are consistent with the first embodiment, so this embodiment will not be repeated.

[0034] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A handheld laser welding gun capable of welding a variety of materials, comprising a welding gun body (101) and a bottom cover (102), characterized in that: The bottom of the welding gun body (101) is connected to the bottom cover (102) to form an installation cavity, an irradiation assembly is arranged in the installation cavity, the irradiation assembly comprises a main body shell (313) and an irradiation tube, the irradiation tube is installed in the main body shell (313), a connecting plate (103) is arranged at one end of the welding gun body (101), a light through hole (104) is opened in the connecting plate (103) corresponding to the irradiation tube, and a light emitting sleeve (105) is arranged at the bottom of the bottom cover (102); one side of the connecting plate (103) is provided with A rotating assembly is provided, wherein a plurality of groups of lasers (21) are mounted on the rotating assembly, wherein one group of the lasers (21) is aligned with the light-through hole (104); a controller (22) is provided on one side of the welding gun body (101), and an identification assembly is provided on the other side; a handle (106) is provided on the top of the welding gun body (101), and a control button (23) is provided at one end of the handle (106); a power block (24) is provided at one end of the welding gun body (101), and the power block (24) is connected to an external power source via a power line.

2. A handheld laser welding gun capable of welding multiple materials according to claim 1, characterized in that: The irradiation tube comprises a first inner tube (301) and a second inner tube (302); a main body cover plate (303) is detachably provided on one side of the main body shell (313) to form a main body cavity; the first inner tube (301) and the second inner tube (302) are both installed in the main body cavity; the second inner tube (302) is located below the first inner tube (301) and is perpendicular to the first inner tube (301); one end of the first inner tube (301) and the second inner tube (302) are both located outside the main body cavity, and A limit plate (304) is provided, and the limit plate (304) is in contact with the main body shell (313); the length of the second inner tube (302) is shorter than that of the first inner tube (301); positioning blocks (305) are provided on both sides of the first inner tube (301) and the second inner tube (302); the main body shell (313) and the main body cover plate (303) are provided with a plurality of groups of positioning grooves (306) corresponding to the positioning blocks (305); and the positioning blocks (305) are clamped in the positioning grooves (306).

3. A handheld laser welding gun capable of welding multiple materials according to claim 2, characterized in that: The irradiation assembly further comprises a collimator (307), a focusing mirror (308) and a reflector (309), wherein the collimator (307) is close to one end of the laser (21), and the focusing mirror (308) is located above the light emitting sleeve (105). The first inner tube (301) and the second inner tube (302) are both provided with mounting grooves (310), and the collimator (307) and the focusing mirror (308) are respectively mounted in two groups of the mounting grooves (310); the reflector (309) ) is located between the ends of the first inner tube (301) and the second inner tube (302) that are close to each other, a mounting frame (311) is arranged inside the main body shell (313), the mounting frame (311) is arranged at an angle, the reflector (309) is clamped in the mounting frame (311), and one side of the reflector (309) corresponds to one end of the first inner tube (301) and the second inner tube (302); protective mirrors (312) are detachably arranged at one end of both the first inner tube (301) and the light emitting sleeve (105).

4. A handheld laser welding gun capable of welding multiple materials according to claim 3, characterized in that: The rotating assembly comprises a rotating disk (401), wherein the rotating disk (401) is located on one side of the connecting plate (103) and is rotatably connected to the connecting plate (103); a motor (406) is arranged on the other side of the connecting plate (103), and the shaft end of the motor (406) is connected to the rotating disk (401); a plurality of mounting platforms (402) are arranged on the circumference of the rotating disk (401), wherein the mounting platforms (402) are arranged to be hollow, wherein the mounting platforms (402) contact the connecting plate (103) to form a space, and the laser (21) is mounted on the mounting platforms (402) by means of a plurality of screws; a visual recognition module (403) is arranged on the welding gun body (101), and a label plate (404) that can be recognized by the visual recognition module (403) is arranged on one side of the mounting platform (402).

5. A handheld laser welding gun capable of welding multiple materials according to claim 4, characterized in that: The rotating assembly further comprises a connecting sleeve (405); a connecting frame (407) is provided at one end of the welding gun body (101); the connecting sleeve (405) is detachably connected to the connecting frame (407); a supporting column (408) is provided on the rotating disk (401); a connecting head (409) is provided at one end of the supporting column (408); a connecting wire is provided on the laser (21); one end of the connecting wire is connected to the connecting head (409); and a plurality of connecting wires are provided on the connecting head (409) corresponding to the plurality of groups of the lasers (21). A group of conductive plates (410) are provided, the conductive plates (410) are in an arc shape, a conductive block (411) is arranged in the connecting sleeve (405), and the conductive block (411) is connected to one group of the conductive plates (410); a protective cover (412) is provided on one side of the connecting plate (103), the protective cover (412) is connected to the connecting plate (103) to form a protective cavity, the rotating disk (401) and the plurality of groups of lasers (21) are located in the protective cavity, and the connecting sleeve (405) is inserted into the protective cover (412).

6. The handheld laser welding gun capable of welding multiple materials according to claim 1, characterized in that: The identification component comprises a fixed frame (501) and a fixed rod (502); the fixed frame (501) is mounted on one side of the welding gun body (101); a fixed through hole (503) is provided on the fixed frame (501); the fixed rod (502) is inserted into the fixed through hole (503); a slide rail (504) is provided above the fixed rod (502); the slide rail (504) is mounted on the fixed frame (501); an electric cylinder (505) is provided on one side of the fixed frame (501); A sliding block (506) is provided at the shaft end of the electric cylinder (505), and the sliding block (506) is slidably connected to the sliding rail (504) and the fixed rod (502); an inclined slope is provided at the bottom of the sliding block (506), and a roller (507) is provided at the top of the fixed rod (502), and the roller (507) is in contact with the inclined slope; a first spring is provided between the fixed rod (502) and the fixed frame (501), and is sleeved on the fixed rod (502).

7. A handheld laser welding gun capable of welding multiple materials according to claim 6, characterized in that: The identification component further comprises a micro power module (508) and a voltage sensor (509); a fixed horizontal plate (510) is arranged at one end of the fixed rod (502), and the micro power module (508) and the voltage sensor (509) are both mounted on the fixed horizontal plate (510); two groups of contact rods (511) are arranged at the bottom of the fixed horizontal plate (510); a first metal head (512) is arranged at one end of the contact rod (511); one end of the metal plate (513) passes through the contact rod (511) and is connected to the first metal head (512); two ends of the micro power module (508) are respectively connected to the first metal head (512) via wires; an insulating plate (514) is arranged on the metal plate (513); a second metal head (515) is arranged on the insulating plate (514); and two ends of the voltage sensor (509) are respectively connected to the second metal head (515) via the wires.

8. The handheld laser welding gun capable of welding multiple materials according to claim 6, characterized in that: The identification component further comprises a micro power module (508) and a voltage sensor (509); a fixed horizontal plate (510) is arranged at one end of the fixed rod (502); the micro power module (508) and the voltage sensor (509) are both mounted on the fixed horizontal plate (510); two groups of contact rods (511) are arranged at the bottom of the fixed horizontal plate (510); a fixing hole (516) is provided at one end of the contact rod (511); a first metal head (512) is inserted into the fixing hole (516); a sliding groove (517) is provided on one side of the contact rod (511); and the metal plate (511) is provided with a plurality of contact rods (511). 3) passing through the slide groove (517) and connected with the first metal head (512), a second spring is arranged in the fixing hole (516), and the second spring is located between the first metal head (512) and the contact rod (511); two ends of the micro power module (508) are respectively connected with the first metal head (512) through wires; an insulating plate (514) is arranged on the metal plate (513), a second metal head (515) is arranged on the insulating plate (514), and two ends of the voltage sensor (509) are respectively connected with the second metal head (515) through the wires.

9. The handheld laser welding gun capable of welding multiple materials according to claim 1, characterized in that: A slot (107) is provided on the handle (106); a pressing block (108) is provided above the handle (106); the pressing block (108) is locked in the slot (107); two groups of third springs are provided in the slot (107); two ends of the third springs are respectively connected to the handle (106) and the pressing block (108); the pressing block (108) is slidably connected to the handle (106); a pressure sensor (25) is provided in the slot (107); a pressing contact (109) is provided at the bottom of the pressing block (108) corresponding to the pressure sensor (25); an assembly slot (110) is provided at the bottom of the light emitting sleeve (105); an infrared sensor (26) is provided below the bottom cover (102); the infrared sensor (26) is locked in the assembly slot (110).

10. A handheld laser welding gun capable of welding multiple materials according to claim 9, characterized in that: A sight plate (111) is rotatably provided at one end of the welding gun body (101); the sight plate (111) is made of a transparent material and is provided with a sight; a buckle is provided on the welding gun body (101); the sight plate (111) is covered and connected to the welding gun body (101) via the buckle; a laser generator (27) is provided on one side of the sight plate (111); the laser generator (27) is mounted on the welding gun body (101).

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