A handheld laser welding gun capable of welding multiple materials

Abstract

The present invention provides a handheld laser welding gun capable of welding various materials, belonging to the technical field of welding guns. It includes a welding gun main body and a bottom cover, and an installation cavity is formed by connecting the two. An irradiation assembly is arranged in the installation cavity, which includes a main body housing and an irradiation tube. One end of the welding gun main body is provided with a connecting plate, and a rotating assembly is arranged on one side of the connecting plate. Multiple groups of lasers are installed on the rotating assembly; a controller and an identification assembly are respectively arranged on both sides of the welding gun main body. A grip is arranged on the top of the welding gun main body, and a control button is arranged at one end of the grip. A power supply block is arranged at one end of the welding gun main body, and the power supply block is connected to an external power supply through a power cord. The welding gun can identify different materials through the identification assembly. Multiple groups of lasers with different wavelengths are installed on the rotating assembly. By rotating the rotating assembly, a suitable laser can be selected according to requirements, effectively avoiding welding defects caused by wavelength mismatch and improving the weld quality and welding strength.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding guns. More specifically, it particularly relates to a handheld laser welding gun capable of welding multiple materials. Background Art

[0002] A handheld laser welding gun is a common welding device. A laser beam with a high energy density generated by a laser is irradiated onto the surface of the material to be welded, causing the material to locally melt instantaneously to form a high-quality molten pool, thereby achieving the purpose of welding. It is widely used in different fields. At the same time, the handheld laser welding gun also has high operation flexibility, reducing the limitation of space on the device. It can be operated in complex structures and narrow spaces and can adapt to the welding requirements of various angles and positions. However, during the welding process, it is often necessary to weld multiple different materials. When welding different materials, the requirements for the wavelength of the laser emitted by the laser are different. However, traditional handheld laser welding guns are often of a fixed structure 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, easy occurrence of poor weld quality and insufficient welding strength, and reduction in the 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 capable of welding multiple materials to solve the technical problems in the prior art that traditional handheld laser welding guns use a single laser, resulting in inability to focus the laser wavelength according to different materials, poor welding effects, and poor welding quality and insufficient strength.

[0004] The purpose and efficacy of a handheld laser welding gun capable of welding multiple materials of the present invention are achieved by the following specific technical means:

[0005] A handheld laser welding gun capable of welding multiple materials includes a welding gun body and a bottom cover. An installation cavity is formed by connecting the bottom of the welding gun body and the bottom cover. An irradiation assembly is arranged in the installation cavity. The irradiation assembly includes a main body housing and an irradiation tube. The irradiation tube is installed in the main body housing. One end of the welding gun body is provided with a connecting plate. A light passing hole is opened in the connecting plate corresponding to the irradiation tube. A light output sleeve is arranged at the bottom of the bottom cover. A rotating assembly is arranged on one side of the connecting plate. Multiple groups of lasers are installed on the rotating assembly. One group of the lasers is aligned with the light passing hole. A controller is arranged on one side of the welding gun body, and an identification assembly is arranged on 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. The power block is connected to an external power supply through a power cord.

[0006] According to a preferred embodiment, the irradiation tube includes a first inner tube and a second inner tube. A main body cover plate is detachably arranged on one side of the main body housing to form a main body cavity, and both the first inner tube and the second inner tube are 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 ends of both the first inner tube and the second inner tube are located outside the main body cavity and are provided with limit plates, and the limit plates are in contact with the main body housing; the length of the second inner tube is shorter than that of the first inner tube. Positioning blocks are arranged on both sides of the first inner tube and the second inner tube, and multiple groups of positioning grooves are formed in the main body housing and the main body cover plate corresponding to the positioning blocks, and the positioning blocks are clamped in the positioning grooves.

[0007] According to a preferred embodiment, the irradiation assembly further includes a collimating mirror, a focusing mirror and a reflecting mirror. The collimating mirror is close to one end of the laser. The focusing mirror is located above the light outlet sleeve. Installation grooves are formed in both the first inner tube and the second inner tube, and the collimating mirror and the focusing mirror are respectively clamped in the two groups of installation grooves; the reflecting mirror is located between one ends of the first inner tube and the second inner tube close to each other. An installation frame is arranged in the main body housing, and the installation frame is inclined. The reflecting mirror is clamped in the installation frame, and one side of the reflecting mirror corresponds to one ends of the first inner tube and the second inner tube; protective mirrors are detachably arranged at one ends of both the first inner tube and the light outlet sleeve.

[0008] According to a preferred embodiment, the rotating assembly includes a rotating disk. The rotating disk is located on one side of the connecting plate and is rotatably connected to the connecting plate. A motor is arranged on the other side of the connecting plate, and the motor shaft end is connected to the rotating disk; multiple groups of installation platforms are arranged on the periphery of the rotating disk. The installation platforms are hollow, and a space is formed by the contact between the installation platforms and the connecting plate. The laser is installed on the installation platforms through multiple groups of screws; a visual recognition module is arranged on the welding torch main body, and a label plate that can be recognized by the visual recognition module is arranged on one side of the installation platform.

[0009] According to a preferred embodiment, the rotating assembly further includes a connecting sleeve. One end of the welding gun body is provided with a connecting frame, and the connecting sleeve is detachably connected to the connecting frame. The rotating disk is provided with a support column, one end of the support column is provided with a connecting head, the laser is provided with a connecting wire, and one end of the connecting wire is connected to the connecting head; multiple conductive plates are provided on the connecting head corresponding to multiple groups of the lasers, the conductive plates are arc-shaped, a conductive block is arranged in the connecting sleeve, and the conductive block is connected to one group of the conductive plates; a protective cover is arranged on one side of the connecting plate, and the protective cover and the connecting plate are connected to form a protective cavity. The rotating disk and multiple groups of the lasers are both located in the protective cavity, and the connecting sleeve is arranged in the protective cover.

[0010] According to a preferred embodiment, the identification assembly includes a fixed frame and a fixed rod. The fixed frame is installed on one side of the welding gun body, a fixed through hole is formed in the fixed frame, the fixed rod is arranged in 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, and the sliding block is located 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 slope; a first spring is arranged between the fixed rod and the fixed frame and is sleeved on the fixed rod.

[0011] According to a preferred embodiment, the identification assembly further includes a micro power supply module and a voltage sensor. A fixed horizontal plate is arranged at one end of the fixed rod, and the micro power supply module and the voltage sensor are both installed on the fixed horizontal plate; two contact rods are arranged at the bottom of the fixed horizontal plate, a first metal head is arranged 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 two ends of the micro power supply module are respectively connected to the first metal head through wires; an insulating plate is arranged on the metal plate, a second metal head is arranged on the insulating plate, and two ends of the voltage sensor are respectively connected to the second metal head through the wires.

[0012] According to a preferred embodiment, the identification component further includes a micro power module and a voltage sensor. One end of the fixed rod is provided with a fixed cross plate, and the micro power module and the voltage sensor are both installed on the fixed cross plate. Two sets of contact rods are provided at the bottom of the fixed cross plate. One end of the contact rod is provided with a fixed hole, and a first metal head is inserted into the fixed hole. A chute is provided on one side of the contact rod, and a metal plate passes through the chute and is connected to the first metal head. A second spring is provided in the fixed hole, and the second spring is located between the first metal head and the contact rod. The two 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, and a second metal head is provided on the insulating plate. The two ends of the voltage sensor are respectively connected to the second metal head through the wires.

[0013] According to a preferred embodiment, a card slot is provided on the grip. A pressing block is provided above the grip, and the pressing block is clamped in the card slot. Two sets of third springs are provided in the card slot, and the two ends of the third spring are respectively connected to the grip and the pressing block. The pressing block and the grip are slidably connected. A pressure sensor is provided in the card slot, and a pressing contact point is provided at the bottom of the pressing block corresponding to the pressure sensor. An assembly groove is provided at the bottom of the light-emitting sleeve, and an infrared sensor is provided below the bottom cover, and the infrared sensor is clamped in the assembly groove.

[0014] According to a preferred embodiment, a sight plate is rotatably provided at one end of the welding gun body. The sight plate is made of a transparent material, and a sight is provided on the sight plate. A buckle is provided on the welding gun body, and the sight plate is covered and connected to the welding gun body through the buckle. A laser generator is provided on one side of the sight plate, and the laser generator is installed on the welding gun body.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The main body of the welding gun forms an installation cavity by connecting with the bottom cover. 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 of the main body of the welding gun. Multiple groups of lasers are installed on the rotating component. Through the cooperation of the lasers and the irradiation component, the welding operation of materials is realized. The rotating disk in the rotating component is rotatably connected to the connecting plate and is driven by a motor. Multiple groups of mounting platforms are arranged on the circumferential side of the rotating disk, and the lasers are installed on the mounting platforms. During the welding process, when welding different materials is required, the motor rotates to make the rotating disk start to rotate, and the lasers with different wavelengths installed on it also move accordingly until the laser with the appropriate wavelength matching the material to be welded is accurately rotated to the position corresponding to the irradiation component. By switching lasers with different wavelengths, the energy absorption efficiency during the welding of different materials is effectively improved, welding defects caused by wavelength mismatch are avoided, and the weld quality and welding strength are significantly improved. Better effects can be obtained in the welding of both metal to metal and metal to non-metal.

[0017] 2. An identification component is arranged on one side of the main body of the welding gun. Through the cooperation of components such as fixed rods, electric cylinders, and sliding blocks, the identification component can control the lifting movement of the fixed cross plate and the components on it. Two contact rods are arranged at the bottom of the fixed cross plate, and a first metal head is arranged at the bottom of the contact rods. Both ends of the micro power supply module are respectively connected to the metal plates clamped on the two first metal heads through wires. At the same time, a voltage sensor is installed on the fixed cross plate. An insulating plate is arranged on the metal plate, and a second metal head is arranged on the insulating plate and is connected to the pressure sensor through a wire. When the material needs to be identified, the fixed cross plate descends, so that the two first metal heads and the second metal head are all in contact with the material. The micro power supply module is activated, and the current starts from the micro power supply module, passes through the first metal head and the wire, flows through the material to be identified, and then returns to the micro power supply module again to form a complete circuit. During this process, the pressure sensor can effectively measure the voltage value in the circuit due to its performance. The resistance of the material can be calculated through the current value and the voltage value. Since materials of different materials have different resistance characteristics, these characteristics are the inherent physical properties of the materials themselves. 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 one with the appropriate wavelength can be selected from multiple lasers according to the difference in the absorption effect of different materials on lasers with different wavelengths, so as to achieve high-quality welding of different materials.

[0018] 3. The welding gun is provided with a clamping groove on the grip, and a movable pressing block is arranged in the clamping groove. The pressing block is connected to the grip through two groups of third springs, so as to endow the pressing block with up-and-down elasticity. A pressure sensor is arranged in the clamping groove, 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, the pressing block will move into the clamping groove, and the pressing contact point will contact the pressure sensor. At the same time, an infrared sensor is arranged below the bottom cover. Both the infrared sensor and the pressure sensor are connected to the controller and form an interlocking structure. When in use, the user holds the grip to pick up the entire welding gun. When holding the grip, a pressure will be applied to the pressing block, so as to realize the contact between the pressing contact point and the pressure sensor, thus completing a trigger preparation action. Next, the user needs to aim the welding gun at the required welding material, and the distance between the two is detected by the infrared sensor. When a preset value is reached, the laser will operate. Through the cooperation of the pressure sensor and the infrared sensor, potential safety hazards caused by misoperation or improper distance can be effectively avoided, and the safety of the welding gun during use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the schematic structural diagram of the assembled invention;

[0020] Figure 2 is the schematic structural diagram of the disassembled invention;

[0021] Figure 3 is the schematic structural diagram of the disassembled recognition component of the first embodiment of the invention;

[0022] Figure 4 is the schematic structural diagram of the disassembled recognition component of the second embodiment of the invention;

[0023] Figure 5 is the schematic structural diagram of the disassembled irradiation component of the invention;

[0024] Figure 6 is the schematic structural diagram of the main body housing;

[0025] Figure 7 is the schematic structural diagram of the contact post;

[0026] Figure 8 is the schematic structural diagram of the bottom cover;

[0027] Figure 9 is the schematic structural diagram of the pressing block;

[0028] Figure 10 is the schematic structural diagram of the connecting sleeve;

[0029] Figure 11 Figure 2 is the partial enlarged view of area a in;

[0030] Figure 12 is Figure 2 a partial enlarged view of region b in

[0031] Figure 13 is Figure 3 a partial enlarged view of region c in

[0032] Figure 14 is a schematic block diagram of the laser

[0033] Figure 15 is a schematic block diagram of the identification component

[0034] In the figure, the corresponding relationship between the part names and the attached drawing reference numerals is as follows:

[0035] 101, main body of the welding gun; 102, bottom cover; 103, connecting plate; 104, light passing hole; 105, light output sleeve; 106, grip; 107, card slot; 108, pressing block; 109, pressing contact; 110, assembly groove; 111, sighting plate; 21, laser; 22, controller; 23, control button; 24, power supply block; 25, pressure sensor; 26, infrared sensor; 27, laser generator; 301, first inner tube; 302, second inner tube; 303, main body cover plate; 304, limiting plate; 305, positioning block; 306, positioning slot; 307, collimating mirror; 308, focusing mirror; 309, reflecting mirror; 310, installation groove; 311, installation frame; 312, protective mirror; 313, main body housing; 401, rotating disk; 402, installation table; 403, visual recognition module; 404, label plate; 405, connecting sleeve; 406, motor; 407, connecting frame; 408, support 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, chute Specific embodiments

[0036] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the technical solutions of the present invention, but cannot be used to limit the protection scope of the present invention.

[0037] Embodiment 1:

[0038] As Figures 1 to 15As shown in the figure, the present invention provides a handheld laser welding gun capable of welding various materials, which includes 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 an installation cavity. An irradiation assembly is arranged in this installation cavity. The irradiation assembly consists of a main body housing 313 and an irradiation tube. The irradiation tube is installed in the main body housing 313, providing a basic guarantee for subsequent operations such as laser transmission. One end of the welding gun body 101 is provided with a connecting plate 103. A light passing hole 104 is opened in the connecting plate 103 corresponding to the position of the irradiation tube. The bottom of the bottom cover 102 is provided with a light output sleeve 105. They cooperate together to ensure that the laser can accurately emit along a predetermined path so as to act on the welding material. The laser 21 can adopt Han's Laser RFL-C2000W laser. A rotating assembly is equipped on one side of the connecting plate 103. Multiple groups of lasers 21 are installed on the rotating assembly, and one group of lasers 21 can accurately align with the light passing 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 arranged on one side of the welding gun body 101. The controller 22 is connected to the laser 21 and other components, responsible for regulating various parameters and operations. The controller 22 can adopt OMRON NJ501-1300 controller; on the other side, an identification assembly is arranged, which can be used for accurate identification and other related operations of the welding material. On the top of the welding gun body 101, a grip 106 is provided. One end of the grip 106 is provided with a control button 23. The control button 23 is electrically connected to the controller 22. During the welding process, the start and stop of the laser 21 are realized through the control button 23. One end of the welding gun body 101 is also provided with a power supply block 24. The power supply block 24 is stably connected to an external power supply through a power cord, providing continuous electrical energy support for the operation of the entire welding gun.

[0039] The irradiation tube includes a first inner tube 301 and a second inner tube 302. One side of the main body housing 313 is provided with a main body cover plate 303 in a detachable manner, forming a regular main body cavity. 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 laser transmission. Among them, the second inner tube 302 is located below the first inner tube 301 and is perpendicular to the first inner tube 301. One ends of the first inner tube 301 and the second inner tube 302 both extend outside the main body cavity, and limit plates 304 are provided at the ends. These limit plates 304 can contact the main body housing 313, playing a good positioning and limiting role to ensure the accurate and stable position of the inner tube in the cavity. 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, multiple groups of positioning grooves 306 are accurately formed on the main body housing 313 and the main body cover plate 303. The positioning blocks 305 can be clamped in these positioning grooves 306, further enhancing the stability of the inner tube installation, enabling the entire irradiation tube to maintain a good structural state in the main body cavity and laying a foundation for the stability of laser transmission.

[0040] The irradiation assembly further includes a collimating mirror 307, a focusing mirror 308 and a reflecting mirror 309. The collimating mirror 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 propagates more regularly along a predetermined direction. The focusing mirror 308 is arranged above the light output sleeve 105. Its main function is to focus the transmitted laser, so as to form a highly energy - concentrated light spot on the surface of the welding material, thereby realizing efficient welding operation. On the first inner tube 301 and the second inner tube 302, special mounting grooves 310 are provided. The collimating mirror 307 and the focusing mirror 308 can be accurately clamped in these two groups of mounting grooves 310 respectively, which not only facilitates the installation and disassembly of optical elements, but also ensures their position accuracy during operation. The reflecting mirror 309 is located between one ends of the first inner tube 301 and the second inner tube 302 close to each other. Inside the main body housing 313, an inclined mounting frame 311 is provided. The reflecting mirror 309 can be firmly clamped in this mounting frame 311, and one side of it can accurately correspond to one end of the first inner tube 301 and the second inner tube 302. By setting the reflecting mirror 309, the propagation path of the laser can be changed, so that it can be transmitted along the designed route in the irradiation tube, further optimizing the laser transmission effect. In order to protect these important optical elements, protective mirrors 312 are detachably arranged at one end of the first inner tube 301 and the light output sleeve 105. The protective mirrors 312 can effectively block impurities such as spatter and dust generated during the welding process, preventing them from adhering to optical elements such as the collimating mirror 307 and the focusing mirror 308, thus ensuring that the optical elements always maintain good light transmittance and optical performance, guaranteeing the accuracy and stability of laser transmission, and providing strong support for continuous and stable welding work.

[0041] A light output sleeve 105 is provided on the bottom cover 102 of the welding gun. The light output sleeve 105 plays a key role in guiding the laser beam to emit, and a through - groove is provided on its surface to allow the beam expander lens to be clamped therein. The beam expander lens is located between the focusing mirror 308 and the protective mirror 312, forming an important link in the laser transmission path. During the actual welding process, the operator can flexibly and selectively use the beam expander lens according to specific welding requirements. When it is necessary to adjust parameters such as the diameter and divergence angle of the laser beam, the beam expander lens can play its unique role and effectively improve the welding effect.

[0042] Such as Figure 2 、 Figure 10 、 Figure 12As shown, the rotating assembly includes a rotating disk 401. The rotating disk 401 is installed on one side of the connecting plate 103 and is rotatably connected to the connecting plate 103, enabling the rotating disk 401 to rotate around the axis. On the other side of the connecting plate 103, a motor 406 is provided. The shaft end of the motor 406 is connected to the rotating disk 401. The start and stop of the motor 406 are controlled by the controller 22. The power generated when the motor 406 operates can be accurately transmitted to the rotating disk 401, thereby driving it to perform a rotating operation. Multiple mounting platforms 402 are provided on the circumferential side of the rotating disk 401. The mounting platforms 402 are hollow. When they come into contact with the connecting plate 103, relatively independent spaces are formed, effectively preventing the irradiation path from being exposed to the outside. The laser 21 is firmly installed on these mounting platforms 402 by multiple screws. This installation method not only ensures the stability of the laser 21 but also facilitates subsequent maintenance and replacement operations. To achieve the identification and monitoring of different lasers 21, a visual recognition module 403 is specifically provided on the welding gun body 101. Correspondingly, a label plate 404 that can be easily recognized by the visual recognition module 403 is provided on one side of the mounting platform 402. The label plate 404 can be of different colors. By identifying different mounting platforms 402 through the visual recognition module 403, through this recognition mechanism, the status of each laser 21 can be grasped in real time and the required laser 21 can be accurately switched to. The visual recognition module 403 can adopt an OpenMV H7 Plus visual recognition module.

[0043] The rotating assembly further includes 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, facilitating operations such as equipment assembly, disassembly, and maintenance. A support column 408 is provided on the rotating disk 401. A connecting head 409 is provided at one end of the support column 408. A connecting wire is provided on the laser 21. One end of the connecting wire is connected to the connecting head 409. On the connecting head 409, multiple conductive plates 410 are provided corresponding to multiple lasers 21. The conductive plates 410 are in an arc-shaped configuration. Inside the connecting sleeve 405, a conductive block 411 is provided. The conductive block 411 can stably connect to one of the conductive plates 410, thereby ensuring the stable transmission of electrical energy during the rotation of the laser 21 and avoiding problems such as abnormal laser output that may occur due to unstable electrical connection.

[0044] To protect the rotating disk 401 and multiple sets of lasers 21 from interference and damage by 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 multiple sets of lasers 21 are both placed in this protective cavity. At the same time, the connecting sleeve 405 is passed through the protective cover 412, which not only does not affect the realization of functions such as its conductivity, but also further enhances the integrity and protective performance of the entire rotating assembly.

[0045] As Figure 2 , Figure 3 , Figure 13 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 main 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 passed through this fixed through hole 503. Multiple sets of protrusions are provided in the fixed through hole 503, and multiple sets of grooves are provided on the fixed rod 502. The protrusions are stuck in the grooves, enabling the fixed rod 502 to perform operations such as moving up and down within the defined 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 subsequent components to slide. An electric cylinder 505 is equipped on one side of the fixed frame 501. As a power source, a slide block 506 is provided at the shaft end of the electric cylinder 505. The slide block 506 is located between the slide rail 504 and the fixed rod 502 and can be slidably connected to the slide rail 504. When the electric cylinder 505 is started, the slide block 506 can slide smoothly along the slide rail 504, and then interact with the roller 507 at 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 movement of the slide block 506 to be converted into an up and down 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 this 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 buffering and resetting role, ensuring the stability of the entire structure and the accuracy of the operation.

[0046] The recognition component further includes a micro power module 508 and a voltage sensor 509. A fixed cross plate 510 is provided at one end of the fixed rod 502, and both the micro power module 508 and the voltage sensor 509 are installed on this fixed cross plate 510. Two groups of contact rods 511 are provided at the bottom of the fixed cross plate 510. 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 and is connected to the first metal head 512, and both ends of the micro power module 508 are respectively and tightly 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 the 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. Both ends of the voltage sensor 509 are respectively connected to the second metal head 515 through wires. When the entire recognition component comes into contact with the welding material for recognition operation, the micro power module 508 is activated, and the current flows through a specific loop. The voltage sensor 509 can measure the voltage value in the loop through the connection with the second metal head 515, thereby providing an important data basis for accurately identifying the material of the welding material and other related operations, effectively realizing the rapid and accurate identification of the welding material, and further providing a strong guarantee for the smooth progress of the welding work. The voltage sensor 509 can adopt the LV25-P voltage sensor.

[0047] Such as Figure 2 , Figure 9 , Figure 11As shown, a card slot 107 is provided on the grip 106, and a pressing block 108 is arranged above the grip 106. The pressing block 108 can be clamped in the card slot 107 to achieve the cooperation between the two. Two groups of third springs are arranged in the card slot 107, and both ends of the two groups of third springs are firmly connected to the grip 106 and the pressing block 108 respectively. By virtue of the elastic action of the third spring, a slidable connection relationship is formed between the pressing block 108 and the grip 106. When the operator holds the grip 106 and applies a certain pressure to the pressing block 108, the pressing block 108 will slide in the card slot 107 along the direction of the spring's elastic force. A pressure sensor 25 is also arranged in the card slot 107, and a pressing contact 109 is arranged 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 corresponding operation instructions, enabling the operator to conveniently control some functions of the welding gun through a simple pressing action. The pressure sensor 25 can adopt an 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 arranged below the bottom cover 102, and the infrared sensor 26 can be clamped in the assembly groove 110. During use, the user holds the entire welding gun by holding the grip 106. When holding the grip 106, pressure will be applied to the pressing block 108, thereby achieving the contact between the pressing contact 109 and the pressure sensor 25 to complete a trigger preparation action. Next, the user needs to align the welding gun with the required welding material, and the infrared sensor 26 detects the distance between the two. When it reaches a preset certain value, the laser 21 will operate. By the cooperation of the pressure sensor 25 and the infrared sensor 26, potential safety hazards caused by misoperation or improper distance can be effectively avoided, and the safety of the welding gun during use is improved. The infrared sensor 26 can adopt a GP2Y0A21YK0F infrared sensor.

[0048] One end of the welding gun body 101 is rotatably provided with a sight plate 111. The sight plate 111 is made of a transparent material. This transparent characteristic enables the operator to clearly observe the welding target area through it. A sight is provided on the sight plate 111. Just like the aiming device on a firearm, it can help the operator more accurately align the welding part. A buckle is provided on the welding gun body 101. The sight plate 111 is cover-connected to the welding gun body 101 through the buckle, which not only facilitates the opening and closing operation of the sight plate 111 but also ensures its stability during normal use. A laser generator 27 is provided on one side of the sight plate 111. 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 sight to further improve the aiming accuracy, so as to better complete the welding task. The laser generator 27 can adopt the HL6358G3 laser generator.

[0049] Embodiment 2:

[0050] Based on a hand-held laser welding gun capable of welding various materials provided in Embodiment 1 of the present application, Embodiment 2 of the present application proposes a hand-held laser welding gun capable of welding various materials. Embodiment 2 is merely a preferred mode of Embodiment 1, and the implementation of Embodiment 2 will not affect the independent implementation of Embodiment 1. Further description of Embodiment 2 of the present invention will be given below.

[0051] As Figure 4 、 Figure 7As shown, the identification component further includes a micro power module 508 and a voltage sensor 509. At one end of the fixed rod 502, there is a fixed cross plate 510, and both the micro power module 508 and the voltage sensor 509 are installed on this fixed cross plate 510. At the bottom of the fixed cross plate 510, there are two groups of contact rods 511. One end of the contact rod 511 is provided with a fixing hole 516, and a first metal head 512 is inserted into the fixing hole 516. At the same time, a sliding groove 517 is also provided on one side of the contact rod 511, and the metal plate 513 can pass through the sliding groove 517 and be connected to the first metal head 512. A second spring is also arranged 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 caused by excessive extrusion. Both ends of the micro power module 508 are respectively connected to the first metal head 512 through wires, and the micro power module 508 can provide electrical energy for the subsequent circuit loop through the first metal head 512 and the metal plate 513. An insulating plate 514 is arranged on the metal plate 513, and a second metal head 515 is further arranged on the insulating plate 514. Both ends of the voltage sensor 509 are respectively connected to the second metal head 515 through wires. When the material identification operation is carried out, the entire circuit is formed, and the voltage sensor 509 can measure the voltage value in the circuit by virtue of its connection with the second metal head 515, thereby providing key data basis for accurately judging the characteristics of the welding material.

[0052] The difference between the second embodiment and the first embodiment is that the contact rod 511 is provided with a fixing hole 516, 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 in limiting the first metal head 512, enabling the first metal head 512 to move within a certain range. A second spring is arranged 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 caused by excessive extrusion. The remaining conditions are the same as those in the first embodiment, so this embodiment will not be described in detail.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious 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; 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).

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. The handheld laser welding gun capable of welding multiple materials according to claim 1, 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).

5. 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); the sliding block (506) is between the slide rail (504) and the fixed rod (502), and is slidably connected to the slide rail (504); an inclined slope is provided at the bottom of the sliding block (506); 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).

6. A handheld laser welding gun capable of welding multiple materials according to claim 5, 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.

7. The handheld laser welding gun capable of welding multiple materials according to claim 5, 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.

8. 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).

9. A handheld laser welding gun capable of welding multiple materials according to claim 8, 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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