A type of air-cooled handheld wire feeding laser welding integrated machine

Abstract

This utility model relates to the field of laser welding equipment technology and discloses an air-cooled handheld laser welding machine with wire feeding. It includes a wire feeder body, a laser generator fixedly connected to the left side of the wire feeder body, a laser output end fixedly connected to the front of the laser generator, a weld seam tracking sensor fixedly connected to the top of the laser output end, an optical lens group fixedly connected to the inner wall of the laser output end, an overheat protection device fixedly connected to the inner wall of the laser generator, a handheld control assembly fixedly connected to the bottom of the wire feeder body, an air-cooling box fixedly connected to the rear of the laser generator, and a gear transmission assembly fixedly connected to the inner wall of the wire feeder body. In this utility model, the coordinated control knob improves operational efficiency, the weld seam tracking sensor and optical lens group ensure stable weld quality, the handheld design expands the operating scenario, and air cooling and overheat protection reduce safety hazards, thus improving both usability and safety.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment technology, and in particular to an air-cooled handheld wire-feeding laser welding integrated machine. Background Technology

[0002] A wire feeder is a specialized device used in the welding process to deliver filler wire to the molten pool. Its main function is to stably and evenly feed the wire into the welding area. A laser welding machine is a welding device that uses a high-energy-density laser beam as a heat source. By focusing the laser, the material is locally melted and a weld is formed.

[0003] When the separate wire feeding device and the water-cooled laser welding device work together, the laser welding device first outputs a focused laser to precisely irradiate the joint of the workpiece to be welded, quickly forming an initial molten pool. At the same time, the separate wire feeding device simultaneously feeds the end of the welding wire to the edge of the molten pool to replenish the welding material. Subsequently, the laser energy continues to act on the workpiece and the welding wire, causing them to melt and fully fuse together. During the welding process, the workpiece moves smoothly at a preset speed, and the laser always maintains a melting state on the material. The wire feeding device precisely adjusts the wire feeding speed according to the welding speed to ensure that the molten pool gradually solidifies as it moves, ultimately forming a continuous and high-quality weld. In addition, the water cooling system operates throughout the entire welding process, using circulating cooling water to absorb the heat generated by key components such as the laser generator and focusing lens in a timely manner, ensuring that the equipment is always at a stable operating temperature.

[0004] In existing related equipment, because the wire feeder and handheld laser welding are completely separated, the operator needs to control the welding position with the laser welding gun while operating the wire feeder to adjust the wire feeding angle and speed. The two actions are difficult to match in real time. If the handheld laser welding gun shakes even slightly during the welding process, the relative position of the wire feed nozzle and the molten pool will deviate, causing the welding wire to be fed off the center of the molten pool. This will directly cause defects such as slag inclusion and incomplete fusion in the weld. The wire feeder usually needs to be fixed or dragged by a cable, while the handheld laser welding requires flexible operation. The separation of the two makes the placement of the wire feeder and the cable tangling problems prominent when the equipment is working in narrow spaces or at heights. The separate design makes the cables of the wire feeder and the welding gun independent, and there are often multiple wires tangled on site, such as laser cables, wire feed tubes, and water cooling pipes. Operators are prone to tripping over the cables. At the same time, it is difficult to fix the distance between the wire feeder and the welding gun. The molten slag that splashes during the wire feeding process may ignite the cables or debris near the wire feeder. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an air-cooled handheld wire-feeding laser welding integrated machine, which aims to improve the problems of extremely poor operation coordination, poor weld quality stability, numerous restricted operation scenarios, and prominent safety hazards.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A handheld air-cooled laser welding machine with wire feeding includes a wire feeder body. A laser generator is fixedly connected to the left side of the wire feeder body. A servo motor is fixedly connected to the top of the wire feeder body. A wire feeding wheel is fixedly connected to the inner wall of the wire feeder body. A wire feeding tube is fixedly connected to the front of the wire feeder body. An optical fiber is fixedly connected to the front of the laser generator. A laser output end is fixedly connected to the front of the optical fiber. A weld seam tracking sensor is fixedly connected to the top of the laser output end. An optical lens group is fixedly connected to the inner wall of the laser output end. An overheat protection device is fixedly connected to the top of the inner wall of the laser generator. A wire feeding mechanism shell is fixedly connected to the outside of the wire feeder body. A handheld control component is fixedly connected to the bottom of the wire feeder body. An air-cooling box is fixedly connected to the rear of the laser generator. A power interface is fixedly connected to the right side of the air-cooling box. A gear transmission group is fixedly connected to the inner wall of the wire feeder body.

[0008] As a further description of the above technical solution:

[0009] The handheld control assembly includes a connecting rod, which is fixedly connected to the bottom of the wire feeder body and the bottom of the laser generator. A hand grip is fixedly connected to the bottom of the connecting rod, and an integrated control panel is fixedly connected to the front of the hand grip.

[0010] As a further description of the above technical solution:

[0011] A bracket is fixedly connected to the top of the laser output end, and the bracket is fixedly connected to the bottom of the weld seam tracking sensor;

[0012] As a further description of the above technical solution:

[0013] A pipe is fixedly connected to the rear of the laser generator, and the pipe is fixedly connected to the front of the air-cooled box.

[0014] As a further description of the above technical solution:

[0015] A wire straightener is fixedly connected to the front of the wire feeding wheel, and the wire straightener is fixedly connected to the rear of the wire feeding tube.

[0016] As a further description of the above technical solution:

[0017] A cooling fan is fixedly connected to the inner wall of the air-cooled box;

[0018] As a further description of the above technical solution:

[0019] A temperature alarm sensor is fixedly connected to the inner wall of the air-cooled box.

[0020] As a further description of the above technical solution:

[0021] An emergency stop knob is located on the right side of the integrated control panel, and a coordination control knob is located on the left side of the emergency stop knob.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the main body of the wire feeder is rigidly connected to the left side of the laser generator to form a unified load-bearing frame, avoiding the entanglement of pipelines in traditional separate equipment. The handheld control component concentrates the operation center in the grip area, and the collaborative control knob on the integrated control panel can be linked to adjust the wire feeding speed and laser parameters. The emergency stop knob can interrupt the operation of the entire system with one click, replacing the cumbersome process of operating two devices separately in traditional equipment. This design allows the operator to complete the synchronous control of wire feeding, laser output and parameter adjustment with one hand.

[0024] 2. In this utility model, the wire feeding wheel is rigidly connected to the servo motor through a gear transmission group. With the wire straightener at the front of the wire feeding wheel, the accuracy error of the wire feeding is minimized. The laser output from the laser generator is transmitted to the laser output end through optical fiber. The internal optical lens group focuses the energy. The laser mode adjuster can adapt to the welding requirements of different materials. At the same time, the weld seam tracking sensor is fixed to the top of the welding head through a bracket to provide real-time feedback on the weld seam position deviation. The control system dynamically corrects the angle of the wire feeding tube and the laser irradiation point according to the signal, so as to effectively improve the uniformity of the weld seam formation.

[0025] 3. In this utility model, the equipment adopts high-strength lightweight alloy components, with a low overall weight. The hand handle conforms to the ergonomic arc design, which is suitable for holding in narrow spaces. The wire feeding tube is made of flexible and wear-resistant material. With the wire feeding tube angle adjustment bracket, it can be arbitrarily fixed within a certain range, which is suitable for welding corners of complex workpieces.

[0026] 4. In this utility model, the cooling fan and temperature alarm sensor inside the air-cooled box work together to automatically stop the machine and issue an alarm when the equipment temperature exceeds a certain value, thus preventing overheating and fire. The wire feeding mechanism is fully enclosed to wrap the wire feeding wheel and servo motor to prevent the welding wire from popping out and injuring people. The welding wire balance monitor provides an early warning that the welding wire is exhausted. In addition, the emergency stop knob and the overheat protection device form a double safety redundancy to ensure that the equipment operation is terminated in a very short time under abnormal circumstances, greatly reducing the risk of accidental injury to operators. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of a wind-cooled handheld wire-feeding laser welding integrated machine proposed in this utility model;

[0028] Figure 2This is a schematic diagram of the outer shell structure of the wire feeding mechanism of an air-cooled handheld wire feeding laser welding integrated machine proposed in this utility model;

[0029] Figure 3 This is a schematic diagram of the air-cooling box structure of an air-cooled handheld wire-feeding laser welding integrated machine proposed in this utility model;

[0030] Figure 4 This is a schematic diagram of the main structure of the wire feeder of the air-cooled handheld wire feeding laser welding integrated machine proposed in this utility model;

[0031] Figure 5 This is a schematic diagram of the optical lens group structure of an air-cooled handheld wire-feeding laser welding integrated machine proposed in this utility model;

[0032] Figure 6 This is a schematic diagram of the overheat protection device for an air-cooled handheld wire-feeding laser welding integrated machine proposed in this utility model.

[0033] Legend:

[0034] 1. Wire feeder body; 2. Laser generator; 3. Servo motor; 4. Wire feed roller; 5. Wire feed tube; 6. Optical fiber; 7. Laser output end; 8. Weld seam tracking sensor; 9. Optical lens group; 10. Connecting rod; 11. Hand grip; 12. Integrated control panel; 13. Air-cooled box; 14. Cooling fan; 15. Overheat protection device; 16. Wire feeder housing; 17. Emergency stop knob; 18. Power interface; 19. Gear transmission group; 20. Bracket; 21. Pipe; 22. Weld wire straightener; 23. Temperature alarm sensor; 24. Coordination control knob. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only one system embodiment of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0036] Reference Figures 1-6This utility model provides an embodiment of a wind-cooled handheld wire feeding laser welding integrated machine, including a wire feeder body 1. The wire feeder body 1 serves as the core load-bearing foundation of the entire machine, securely connecting the left-side components, top components, and fixing related inner wall components and front channel components. It provides installation support for external protective components and connects to the bottom grip and control components. By precisely integrating the positional relationships of the connected components, it ensures no displacement during operation, allowing wire feeding, power output, and laser generation functions to work in tandem. This prevents wire feeding deviation or unstable laser emission due to structural loosening. It is a key carrier for maintaining the structural integrity of the entire machine and the stable operation of welding. Insufficient load-bearing capacity will directly affect the working accuracy of all connected components, thereby reducing welding quality. A laser generator 2 is fixedly connected to the left side of the wire feeder body 1. The core function of the laser generator 2 is to generate the laser energy required for welding, providing a source guarantee for subsequent laser transmission and action, and is the energy core of the entire welding operation. Its left side is fixed to the wire feeder body 1, the front is connected to a laser transmission component to deliver the laser, and the rear is connected to a heat dissipation device. Simultaneously, a temperature protection component is fixed to the top of the inner wall to monitor its own temperature in real time. When high temperatures are generated during prolonged operation, the temperature protection component will activate to prevent internal components from burning out when the temperature exceeds the threshold. The cooling airflow generated by the heat dissipation device can enter the interior through a dedicated channel to remove heat, ensuring that the laser output remains stable at a suitable temperature. If the energy output is unstable, it will lead to insufficient or excessive melting at the welding site, directly affecting the weld quality. A servo motor 3 is fixedly connected to the top of the wire feeder body 1. As the core power output component, the servo motor 3 is fixed to the top of the wire feeder body 1. Its main function is to provide stable and precisely adjustable power to the rotating parts related to wire feeding. Through cooperation with the transmission components on the inner wall of the wire feeder body 1, it transmits its own speed and torque. It can precisely adjust the output power according to the welding process requirements, thereby controlling the speed of the rotating parts of the wire feeding, ensuring that the wire feeding speed matches the welding rhythm. For example, when welding thick plates, the output power can be increased to speed up the wire feeding. The rotation speed of the rotating components increases the wire feeding amount, ensuring sufficient wire filling at the welding area. When welding thin plates, the power is reduced to slow the wire feeding speed and prevent wire accumulation. Inaccurate power output can cause inconsistent wire feeding speeds, resulting in defects such as missing wire and weld beads, affecting the consistency of welding quality. A wire feeding wheel 4 is fixedly connected to the inner wall of the wire feeder body 1. The wire feeding wheel 4 rotates using power transmitted by a servo motor 3 through a transmission component. Its core function is to use the friction between itself and the welding wire to drive the wire forward. A wire straightening component is connected at the front, accurately guiding the fed wire into the straightening component to ensure that the wire is straightened before entering the subsequent feeding channel. The wheel surface design must be adapted to the wire diameter to ensure a tight fit and prevent slippage that could interrupt wire feeding. Stable rotation must be maintained during welding; uneven rotation will cause intermittent wire feeding, resulting in an unstable wire supply at the welding area.This can lead to insufficient weld strength or porosity. Additionally, wear can affect wire feeding performance. Regular inspections are necessary after long-term use to ensure a continuous and stable wire feed. The wire feeder body 1 has a wire feeding tube 5 fixedly connected to its front. This tube is a dedicated channel for the straightened welding wire to reach the welding area. Its core function is to guide the straightened wire to the vicinity of the welding component, providing a continuous supply of welding wire for the welding operation. Its inner wall must be smooth to avoid resistance and wire jamming caused by roughness. The wire feeding tube 5 also protects the welding wire from external environmental influences during transport, preventing dust from adhering to its surface and entering the weld to create impurities that affect weld purity. Bending or blockage can hinder wire feeding and interrupt welding. Therefore, the installation must be straight, and internal impurities must be cleaned regularly to ensure smooth wire feeding. The laser generator 2 has an optical fiber 6 fixedly connected to its front. This fiber is a key medium for laser energy transmission, its core function being to efficiently and with low loss transmit the laser energy generated by the laser generator 2. The laser energy is transmitted to the welding actuator. Its internal structure must possess excellent light transmission performance to prevent energy attenuation or scattering during transmission, ensuring that the laser energy reaching the welding actuator meets welding requirements. The connections at both ends must be tight; loose connections will lead to laser leakage, wasting energy and potentially posing safety hazards to operators. Furthermore, insufficient laser energy received by the welding actuator will affect the welding effect. During use, excessive bending or compression should be avoided to prevent internal structural breakage, which could interrupt laser transmission and disrupt the welding operation. The optical fiber 6 has a laser output end 7 fixedly connected to its front. The laser output end 7 serves as the execution component for welding operations. Its front end receives the laser transmitted by the optical fiber 6, while the inner wall is fixed with an optical processing component to process the laser. The top is supported by a weld monitoring component. Its core function is to precisely apply the processed laser to the welding area to achieve the welding operation. The optical processing component can focus the laser, concentrating its energy to form a spot size and energy density that meets welding requirements, ensuring sufficient melting of the welding area. The weld monitoring component can monitor the weld position in real time, providing a basis for adjusting its welding trajectory and preventing laser deviation from the weld due to workpiece displacement. Its design must be easy for operators to hold. If the laser output end 7 is too heavy or difficult to hold, it will increase operator fatigue and affect welding accuracy. Simultaneously, the interior must be kept clean to prevent dust from adhering to the optical processing components, affecting the laser processing effect and leading to a decrease in welding quality. A weld seam tracking sensor 8 is fixedly connected to the top of the laser output end 7. The core function of the weld seam tracking sensor 8 is to collect key information such as the position and shape of the weld seam in real time during the welding process. It can quickly identify weld seam deviations and convert this information into electrical signals that are fed back to the equipment control system. This allows the control system to adjust the position of the laser output end 7 or the welding parameters in a timely manner, ensuring that the laser beam always accurately targets the center of the weld seam.Its role is particularly important when welding irregular workpieces or workpieces with slight deformation. Without it, operators would need to manually adjust the equipment position, which is not only inefficient but also prone to welding deviations, resulting in unsightly and insufficient weld strength. Simultaneously, it needs to possess high sensitivity and anti-interference capabilities to prevent factors such as sparks and fumes during welding from affecting monitoring accuracy, ensuring a continuous and stable supply of weld information. An optical lens group 9 is fixedly connected to the inner wall of the laser output end 7. The optical lens group 9 consists of multiple lenses with different functions, and its core function is to perform a series of precise optical processing on the laser transmitted from the optical fiber 6. Among them, the focusing lens can converge the diverging laser into a concentrated energy spot, ensuring sufficient energy density at the welding site to ensure the workpiece material is fully melted; the collimating lens ensures the directionality of the laser beam, preventing scattering of the laser when it reaches the welding site, which would affect welding accuracy. The lens needs to have high light transmittance and high temperature resistance. If the light transmittance is low, it will lead to excessive laser energy loss and insufficient energy reaching the welding area. If the high temperature resistance is poor, it will be easily damaged when exposed to the high temperature of the laser for a long time, affecting the laser processing effect. Therefore, the surface of the lens needs to be cleaned regularly to prevent dust and oil from adhering, and to avoid external impacts to ensure continuous and stable laser processing. An overheat protection device 15 is fixedly connected to the top of the inner wall of the laser generator 2. The core function of the overheat protection device 15 is to monitor the temperature change inside the laser generator 2 in real time. It is a key component to ensure its safe operation. When the internal temperature of the laser generator 2 rises to the set safety threshold due to long-term operation, inadequate heat dissipation, or other malfunctions, the protection mechanism will be triggered immediately to prevent the internal core components from burning out due to high temperature and avoid economic losses caused by equipment damage. A wire feeding mechanism shell 16 is fixedly connected to the outside of the wire feeder body 1. The core function of the wire feeding mechanism shell 16 is to provide protection for the internal components of the wire feeder body 1. It is an important structure to ensure the safety of the internal components of the equipment and the safety of the operators. This device isolates the moving parts, such as the wire feeding wheel 4 and transmission components, from the outside environment, preventing dust, impurities, and water droplets from entering and affecting the rotational accuracy and lifespan of the components. For example, dust adhering to the gears of the transmission components will accelerate gear wear and reduce power transmission efficiency. It also prevents operators from accidentally touching the high-speed rotating parts during operation, avoiding hand injuries and other safety accidents. The material must possess sufficient strength and durability to withstand minor impacts, protecting internal components from external force damage. Simultaneously, the surface must be easy to clean, facilitating regular maintenance by operators. A handheld control unit is fixedly connected to the bottom of the wire feeding machine body 1. A cooling box 13 is fixedly connected to the rear of the laser generator 2. The core function of the cooling box 13 is to provide heat dissipation for the laser generator 2, ensuring it operates at a suitable temperature. A power interface 18 is fixedly connected to the right side of the cooling box 13, serving as a bridge between the device and an external power source.This device provides electrical energy to all electrically driven components of the machine, serving as the energy entry point for normal operation. External power is introduced through it and distributed to the servo motor 3, laser generator 2, air-cooled box 13, integrated control components, etc., ensuring that each component can normally achieve functions such as power output, laser generation, heat dissipation, and control. Connections must be stable and reliable; loose interfaces or poor contact will lead to unstable power supply, causing problems such as fluctuating servo motor 3 speed, unstable laser output, and cooling fan 14 failure, thus affecting welding quality and equipment safety. Simultaneously, it must possess good insulation performance to prevent leakage and ensure the electrical safety of operators. Its specifications must match the equipment's power requirements to ensure stable transmission of the required current and voltage. A gear transmission group 19 is fixedly connected to the inner wall of the wire feeder body 1. The core function of the gear transmission group 19 is to realize power transmission and speed change, and it is a key component for adjusting the wire feeding speed.

[0037] Reference Figure 1The handheld control assembly includes a connecting rod 10. As the core connecting structure of the handheld control assembly, the connecting rod 10's primary function is to ensure a stable connection between the wire feeder body 1, the laser generator 2, and the handheld grip 11, providing reliable structural support for the handheld operation of the entire machine. Through a high-strength connection design, it integrates these three key components into a stable whole. During welding operations, the operator needs to move the welding equipment by hand. The connecting rod 10 effectively resists vibrations generated during equipment operation and external impacts that may occur during operation, preventing displacement or loosening of the wire feeder body 1 and the laser generator 2 relative to the handheld grip 11. The connecting rod 10 is fixedly connected to the bottom of the wire feeder body 1 and the bottom of the laser generator 2. A handgrip 11 is fixedly connected to the bottom of the device. The handgrip 11 is a core component where the operator directly contacts the equipment. Its primary function is to provide a comfortable and stable grip, ensuring flexible and precise control of the equipment during welding. Its shape strictly adheres to ergonomic design, with a curved surface conforming to the natural arc of the palm. The large contact area between the palm and the grip evenly distributes the weight of the equipment across the hand, preventing excessive localized stress and hand fatigue. Even during prolonged use, it effectively relieves arm muscle soreness. The grip surface is made of a non-slip, wear-resistant material, which not only increases friction between the hand and grip, preventing slippage due to sweaty hands or equipment vibration, but also resists the adhesion of oil and metal shavings that may be generated during welding operations, facilitating... Cleanliness is paramount. Furthermore, the weight of the handheld handle 11 is strictly controlled, minimizing weight while maintaining structural strength, without adding extra weight to the overall equipment. This allows operators to easily adjust the welding angle, enabling flexible handling of both precise welding in confined spaces and moving large workpieces, providing a solid operational foundation for efficient and high-quality welding. The handheld handle 11 has an integrated control panel 12 fixedly connected to its front. This control panel 12 is the core hub for equipment operation and status monitoring. Its primary function is to allow operators to conveniently and accurately adjust welding parameters and monitor the equipment's operating status in real time while handheld welding, while also providing emergency safety features. The panel integrates various operating elements, including welding parameter adjustment buttons, tool... With status indicator lights, operators can quickly adjust key parameters such as laser power and wire feed speed without leaving their welding position, simply by touching the screen. This adapts to the welding needs of workpieces of different thicknesses and materials, avoiding frequent posture adjustments that could disrupt welding continuity. The status indicator lights clearly display whether the equipment is operating normally or experiencing any malfunctions, allowing operators to understand the equipment's status in real time and identify problems promptly. Crucially, the panel includes key safety control components. In emergencies such as laser deviation from the weld seam or abnormal equipment vibration, operators can quickly operate the relevant components to cut off power and stop all operations, preventing accidents from escalating. Its compact and rational layout, along with clearly labeled operating elements, helps operators quickly identify and accurately operate the equipment.Significantly improves the efficiency and safety of welding operations.

[0038] Reference Figure 1 A bracket 20 is fixedly connected to the top of the laser output end 7. The core function of the bracket 20 is to provide a stable mounting support for the weld seam tracking sensor 8, ensuring its accurate monitoring position. The structural design must have sufficient strength and stability to withstand the external forces generated by equipment vibration or movement during welding, preventing the weld seam tracking sensor 8 from shifting due to vibration, which would lead to inaccurate weld seam monitoring information. The bracket 20 should fix the weld seam tracking sensor 8 at the optimal monitoring position on the top of the laser output end 7, allowing it to clearly and accurately collect the position and shape information of the weld seam. If the installation is not secure or deformed, the monitoring angle of the weld seam tracking sensor 8 will deviate, failing to effectively capture weld seam information. Consequently, the laser output end 7 will be unable to adjust the welding trajectory in time, causing welding deviation. Simultaneously, the material must be lightweight to avoid increasing the overall weight of the laser output end 7, which would affect the operator's handheld operation flexibility. The bracket 20 is fixedly connected to the bottom of the weld seam tracking sensor 8. A pipe 21 is fixedly connected to the rear of the laser generator 2. The pipe 21 is fixedly connected to the front of the air-cooled box 13. The core function of the pipe 21 is to construct a transmission channel for cooling airflow, providing a necessary path for the laser generator 2 to dissipate heat. The cooling airflow generated by the rotation of the cooling fan 14 inside the air-cooled box 13 must pass through it to smoothly enter the laser generator 2, contact the heat-generating components, and remove heat. Then, the heat-carrying airflow is discharged through it or other heat dissipation channels of the equipment. The inner diameter must be adapted to the airflow of the cooling fan 14 to ensure smooth airflow. If the inner diameter is too small, it will lead to increased airflow resistance and reduced heat dissipation efficiency. If there is a bend, blockage, or air leakage at the connection, it will cause airflow loss or poor delivery, and will not be able to effectively cool the laser generator 2. Therefore, the installation must be kept unobstructed, the connection must be well sealed, and there should be regular checks for blockages or damage to ensure efficient transmission of cooling airflow and guarantee the heat dissipation effect of the laser generator 2.

[0039] Reference Figure 4A wire straightener 22 is fixedly connected to the front of the wire feeding wheel 4 and to the rear of the wire feeding tube 5. The core function of the wire straightener 22 is to straighten the welding wire fed by the wire feeding wheel 4, ensuring that the welding wire can smoothly enter the wire feeding tube 5. During storage, the welding wire is usually in a coiled state, and it may bend due to force during the feeding process of the wire feeding wheel 4. If the bent welding wire directly enters the wire feeding tube 5, it is easy to get stuck in the wire feeding tube 5, causing the wire feeding to be interrupted or even damaging the wire feeding tube 5. The wire straightener uses multiple sets of straightening wheels or straightening blocks inside to squeeze and stretch the bent welding wire, straightening it into a straight state, so that the welding wire can be smoothly fed through the wire feeding tube 5 to the welding area. The straightening force needs to be adjusted according to the material and diameter of the welding wire. If the force is too large, it may damage the surface of the welding wire; if the force is too small, the ideal straightening effect cannot be achieved. Therefore, it is necessary to adjust it reasonably according to the actual welding wire specifications used to ensure that it can continuously and stably provide high-quality straightening treatment for the welding wire.

[0040] Reference Figure 3 A cooling fan 14 is fixedly connected to the inner wall of the air-cooled box 13. The core function of the cooling fan 14 is to generate forced cooling airflow, which is the core component for the air-cooled box 13 to achieve heat dissipation. When the equipment is powered on, it rotates at high speed under electric drive, pushing air to form an airflow. This airflow enters the laser generator 2 along the pipe 21, exchanges heat with the internal heating elements, absorbs heat, and then is discharged from the heat dissipation port of the equipment, thereby reducing the temperature of the laser generator 2. The rotation speed and airflow must be matched with the heat output of the laser generator 2. If the rotation speed is too low or the airflow is insufficient, the heat dissipation effect will be poor and the temperature of the laser generator 2 will rise. If the rotation speed is too high, it will generate more noise and increase the energy consumption of the equipment. At the same time, it must have good durability and be able to work continuously for a long time. The fan blades must be kept clean to avoid dust accumulation, which will lead to a decrease in airflow or fan failure. Therefore, the fan blades need to be cleaned regularly to ensure stable heat dissipation performance. A temperature alarm sensor 23 is fixedly connected to the inner wall of the air-cooled box 13. The core function of the device 23 is to monitor the equipment temperature in real time, provide early warning for abnormal equipment temperature, and ensure the safe operation of the equipment. The temperature alarm sensor 23 can not only monitor the temperature inside the air-cooled box 13, but also indirectly monitor the temperature change of the laser generator 2 through the connection between the air-cooled box 13 and the laser generator 2. When the temperature exceeds the normal operating range of the equipment, such as when the cooling fan 14 of the air-cooled box 13 fails and causes the internal temperature to rise, or when the laser generator 2 has poor heat dissipation and causes abnormal temperature, it will immediately issue audible and visual alarm signals to remind the operator to check the equipment fault in time. Without it, the operator will find it difficult to grasp the internal temperature of the equipment in real time, and may fail to deal with the overheating of the equipment in time, causing the laser generator 2 to trigger overheat protection shutdown, or even causing equipment damage.

[0041] Reference Figure 1The integrated control panel 12 has an emergency stop knob 17 on the right side. The core function of the emergency stop knob 17 is to quickly stop the equipment in an emergency, ensuring the safety of the operator and the equipment. It is a crucial safety protection component. When an emergency occurs during welding, such as the welding actuator deviating too far from the welding area, abnormal noise or vibration from the equipment, or the operator facing a safety risk, the operator can quickly press it. The equipment will immediately cut off all power supply, stop laser emission, wire feed wheel 4 rotation, cooling fan 14 operation, and all other working actions, quickly cutting off the source of danger and preventing the accident from escalating. The emergency stop knob 17 is located on the left side. A coordination control knob 24 is provided. The core function of the coordination control knob 24 is to adjust the coordinated working state of the wire feeding mechanism and the laser emitting mechanism, so as to ensure that the functions of each function work together in coordination during the welding process and improve the welding quality. By rotating it, the operator can adjust the matching relationship between the wire feeding speed of the wire feeding wheel 4 and the laser power and laser output frequency of the laser generator 2. For example, when welding thicker workpieces, it is necessary to increase the laser power to enhance the melting capacity. At this time, the wire feeding speed can be increased simultaneously to ensure that there is enough welding wire to fill the weld. When welding thinner workpieces, the laser power can be reduced while the wire feeding speed can be slowed down to avoid excessive welding wire and weld beads.

[0042] Working principle: After the operator connects to an external power source through the power interface 18, all electronic components of the equipment are powered on. The temperature alarm sensor 23 performs initial temperature detection inside the air-cooled box 13. If the temperature is normal, the cooling fan 14 starts and delivers cool air to the laser generator 2 through the pipe 21 for preheating. Then, the operator holds the handgrip 11 and uses the integrated control panel 12 and the collaborative control knob 24 to set parameters such as wire feeding speed and laser power. After startup, the servo motor 3 receives the signal and drives the wire feeding wheel 4 to rotate through the gear transmission group 19. The welding wire enters from the wire feeder body 1, is clamped by the wire feeding wheel 4 and fed to the wire straightener 22 for straightening, and then enters the wire feeding tube 5 and is pushed to the welding area near the laser output end 7. Simultaneously, the laser beam generated by laser generator 2 is transmitted to laser output end 7 via optical fiber 6, and focused by optical lens group 9 to form a high-energy spot aligned with the position to be welded. Weld seam tracking sensor 8, fixed to the top of laser output end 7 via bracket 20, monitors the weld seam position in real time and feeds feedback to the control system, ensuring the spot is always aligned with the weld seam. During collaborative welding, the wire feeding system continuously feeds wire, and the laser welding system outputs laser light to melt the welding wire and workpiece, forming a molten pool. The operator controls the movement of the equipment via hand grip 11, and the connecting rod 10 ensures stable connection for precise control of the welding trajectory. The overheat protection device 15 monitors the temperature of laser generator 2 in real time; if the temperature is too high, it immediately stops laser output and wire feeding, and can restart after the temperature returns to normal. Throughout the process, the wire feeding mechanism housing 16 encloses and protects the wire feeding components. In case of emergency, pressing the emergency stop knob 17 on the right side of the integrated control panel 12 immediately stops all equipment operation. The temperature alarm sensor 23 will also issue an alarm if it detects an abnormal temperature. After welding is completed, the operator turns off the equipment via the integrated control panel 12. The laser generator 2 stops producing light, the servo motor 3 and the wire feed wheel 4 stop working, and the cooling fan 14 continues to run until the temperature of the laser generator 2 drops to a safe range and then stops automatically. Finally, the power interface 18 is disconnected.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for the system technical features therein. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wind-cooled handheld wire-feeding laser welding integrated machine, comprising a wire feeder body (1), characterized in that: A laser generator (2) is fixedly connected to the left side of the wire feeder body (1). A servo motor (3) is fixedly connected to the top of the wire feeder body (1). A wire feeding wheel (4) is fixedly connected to the inner wall of the wire feeder body (1). A wire feeding tube (5) is fixedly connected to the front of the wire feeder body (1). An optical fiber (6) is fixedly connected to the front of the laser generator (2). A laser output end (7) is fixedly connected to the front of the optical fiber (6). A weld seam tracking sensor (8) is fixedly connected to the top of the laser output end (7). An optical lens group (9) is fixedly connected to the inner wall of the output end (7). An overheat protection device (15) is fixedly connected to the top of the inner wall of the laser generator (2). A wire feeding mechanism shell (16) is fixedly connected to the outside of the wire feeder body (1). A handheld control component is fixedly connected to the bottom of the wire feeder body (1). A cooling box (13) is fixedly connected to the rear of the laser generator (2). A power interface (18) is fixedly connected to the right side of the cooling box (13). A gear transmission group (19) is fixedly connected to the inner wall of the wire feeder body (1).

2. The air-cooled handheld wire-feeding laser welding integrated machine according to claim 1, characterized in that: The handheld control assembly includes a connecting rod (10), which is fixedly connected to the bottom of the wire feeder body (1) and the bottom of the laser generator (2). A hand grip (11) is fixedly connected to the bottom of the connecting rod (10), and an integrated control panel (12) is fixedly connected to the front of the hand grip (11).

3. The air-cooled handheld wire-feeding laser welding integrated machine according to claim 1, characterized in that: A bracket (20) is fixedly connected to the top of the laser output end (7), and the bracket (20) is fixedly connected to the bottom of the weld seam tracking sensor (8).

4. The air-cooled handheld wire-feeding laser welding integrated machine according to claim 1, characterized in that: The laser generator (2) is fixedly connected to a pipe (21) at the rear, and the pipe (21) is fixedly connected to the front of the air-cooled box (13).

5. The air-cooled handheld wire-feeding laser welding integrated machine according to claim 1, characterized in that: A wire straightener (22) is fixedly connected to the front of the wire feeding wheel (4), and the wire straightener (22) is fixedly connected to the rear of the wire feeding tube (5).

6. The air-cooled handheld wire-feeding laser welding integrated machine according to claim 1, characterized in that: A cooling fan (14) is fixedly connected to the inner wall of the air-cooled box (13).

7. The air-cooled handheld wire-feeding laser welding integrated machine according to claim 6, characterized in that: A temperature alarm sensor (23) is fixedly connected to the inner wall of the air-cooled box (13).

8. The air-cooled handheld wire-feeding laser welding integrated machine according to claim 2, characterized in that: An emergency stop knob (17) is provided on the right side of the integrated control panel (12), and a coordination control knob (24) is provided on the left side of the emergency stop knob (17).

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