A flux synergic supply device of a laser-arc hybrid welding apparatus

Abstract

The present application relates to laser welding auxiliary feeding mechanism technical field, specifically, a kind of flux collaborative supply device of laser electric arc composite welding equipment, it includes main body welding gun and flux supply box, main body welding gun end is provided with laser electric arc welding head, angle adjusting frame is fixedly connected with function assembly shell at one end far from main body welding gun, the inside of function assembly shell is provided with intelligent collaborative control module and drive assembly, the inside of main body welding gun is provided with supply assembly and collaborative component, the stable feeding of flux source head is realized by second servo motor in the inside of flux supply box cooperation take-up reel, simultaneously, through gear meshing drive structure in the inside of gun end sliding adjustment frame, auxiliary push is carried out to flux, effectively solve the problem of long-distance conveying driving force attenuation of traditional single-end push structure, avoid flux jam, supply phenomenon, guarantee flux supply continuous uniform.

Description

Technical Field

[0001] This invention relates to the field of auxiliary feeding mechanisms for laser welding, and more specifically, to a flux co-supply device for laser-arc hybrid welding equipment. Background Technology

[0002] Laser-arc hybrid welding equipment is an integrated welding device that combines a laser, an arc welding system, a hybrid welding torch, a motion mechanism, and an intelligent control system. It achieves deep penetration and high-speed welding by coupling two heat sources, laser and arc, to share a molten pool and enhance each other's efficiency. It relies on the laser to achieve deep penetration and high-speed welding, and on the arc to fill the welding wire and relax the requirements for workpiece assembly precision. It has the characteristics of high welding efficiency, small deformation, few weld defects, and compatibility with highly reflective materials such as aluminum and copper. It is mainly divided into two categories: robot workstations and gantry special machines. It is widely used in the field of precision welding of medium and thick plates in new energy vehicles, rail transit, ships, engineering machinery, and pressure vessels.

[0003] A search revealed that publication number (CN220612697U) discloses a high-efficiency laser welding head, which describes "a main housing comprising at least a vertical end and an inclined end. A laser generator and a collimation assembly are fixed on the inclined end, and a reflection assembly is fixed on the vertical end. A support housing is quickly connected to the vertical end, and a focusing assembly is located within the support housing. A welding head is located below the support housing, and a connecting housing is provided between the welding head and the support housing. A protective mirror assembly is slidably disposed within the connecting housing." The advantages of this invention are mainly reflected in its novel design, modular assembly of the various components, facilitating upgrades and maintenance, and greatly improving work efficiency; simultaneously, its compact structure significantly reduces space requirements, making it easy to operate handheld and possessing wider applicability.

[0004] When using the above technology, the following technical problems were found in the existing technology: The flux pushing and supply structure of the above equipment is concentrated at the front end of the flux supply end. During the welding operation, as the welding head moves continuously and the working position gradually moves away from the flux supply source, the flux conveying stroke continues to lengthen and the pushing driving force continues to decrease. At the same time, during long-distance conveying, the flux is prone to problems such as deviation, accumulation, and jamming, which can easily cause intermittent flux supply, conveying jamming, or even supply interruption. This problem not only leads to insufficient filling of the weld pool and uneven weld formation, which can easily produce welding defects such as porosity, undercut, and incomplete welding, seriously reducing the quality of the welded product, but also causes welding operation interruption, affecting welding continuity and work efficiency, and failing to meet the needs of high-precision and continuous composite welding production.

[0005] Based on this, the present invention discloses a flux co-supply device for laser-arc hybrid welding equipment. Summary of the Invention

[0006] To address the issues raised in the background art, where the flux supply structure of the aforementioned equipment is centrally located at the front end of the flux supply point, during welding operations, as the welding head continuously moves and the working position gradually moves away from the flux supply source, the flux delivery stroke continuously lengthens, and the pushing driving force continuously weakens. Simultaneously, during long-distance delivery, the flux is prone to deviation, accumulation, and jamming, easily causing intermittent flux supply, delivery stagnation, or even supply interruption. This problem not only leads to insufficient filling of the weld pool and uneven weld formation, easily generating welding defects such as porosity, undercut, and incomplete welding, severely reducing the quality of the welded product, but also causes welding operation interruptions, affecting welding continuity and operational efficiency, failing to meet the demands of high-precision, continuous composite welding production, this invention provides a flux co-supply device for laser-arc composite welding equipment, comprising a main welding torch and a welding torch... The welding torch has a flux supply housing, a laser arc welding head at its end, an angle adjustment frame fixedly connected to its end, a welding start induction switch for activating the laser arc welding head, a functional assembly housing fixedly connected to the end of the angle adjustment frame away from the welding torch, a sliding adjustment frame fixedly connected to the end of the functional assembly housing away from the angle adjustment frame, a flux body slidably connected to the inner side of the sliding adjustment frame, a toothed groove at the upper end of the flux body, a drive shaft rotatably connected to the inner side of the upper end of the sliding adjustment frame, a first gear fixedly connected to the outer side of the drive shaft, the first gear meshing with the toothed groove, an intelligent collaborative control module and a drive component on the inner side of the functional assembly housing, and a supply component and a collaborative component on the inner side of the welding torch.

[0007] As a further improvement to this technical solution, the drive assembly includes a first servo motor, a motor drive spindle, a worm gear, and a worm wheel. The first servo motor is fixedly connected to the inner side of the functional assembly housing. The output end of the first servo motor is fixedly connected to the motor drive spindle. The worm wheel is fixedly connected to the outer side of the motor drive spindle. The worm gear is fixedly connected to the outer side of the drive shaft near the worm wheel. The worm wheel and the worm gear are meshed together.

[0008] As a further improvement to this technical solution, a protective pipe is provided between the flux supply box and the sliding adjustment frame, and the two ends of the protective pipe are fixedly connected to the flux supply box and the sliding adjustment frame, respectively.

[0009] As a further improvement to this technical solution, the sliding adjustment frame and the inner side of the protective tube are symmetrically fixedly connected with limit guide strips, and the inner side of the flux body is symmetrically opened with limit guide grooves. The limit guide strips are located inside the limit guide grooves and are slidably connected with the limit guide grooves.

[0010] As a further improvement to this technical solution, the supply component includes a flux winding reel and a reel drive end plate. The flux winding reel rotates inside the flux supply box. The reel drive end plates are symmetrically fixed to the outer sides of both ends of the flux winding reel. The flux body is wound around the outer side of the flux winding reel.

[0011] As a further improvement to this technical solution, the collaborative component includes a second servo motor, an output gear, and a gear ring. The second servo motor is fixedly connected to the inner side of the flux supply box, and the output gear is fixedly connected to the output end of the second servo motor. The gear ring is fixedly connected to the outer side of the reel drive end plate, and the output gear meshes with the gear ring.

[0012] As a further improvement to this technical solution, the inner side of the flux supply box is symmetrically fixedly connected with guide wheel mounting supports, and the inner sides of the two guide wheel mounting supports are symmetrically rotatably connected with waisted guide wheels. The waisted guide wheels have a waisted structure that is thick at both ends and thin in the middle. The transition between the thick and thin parts adopts an arc-shaped curved surface transition structure, and the flux body is located between the two waisted guide wheels.

[0013] As a further improvement to this technical solution, the flux body is made of aluminum.

[0014] As a further improvement to this technical solution, the flux body is made of stainless steel.

[0015] As a further improvement to this technical solution, the intelligent collaborative control module includes: The receiving module is used to receive the signal when the welding start induction switch is energized; Feedback module, wherein the feedback signal is used to feed back the received signal to the central module; The central module analyzes the energization duration of the welding start induction switch and then controls the two transmitting templates to transmit signals. Two transmitting modules and two transmitting signals control the start and stop of the first servo motor and the second servo motor respectively. The transmitting modules are used to transmit signals to the first servo motor and the second servo motor. Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the flux co-supply device of the laser-arc hybrid welding equipment, the flux source is stably fed by the second servo motor inside the flux supply box in conjunction with the winding and unwinding shaft. At the same time, the flux is pushed by the gear meshing drive structure inside the gun end sliding adjustment frame. This effectively solves the problem of the driving force attenuation of the traditional single-end pushing structure over long distances, avoids flux jamming and interruption, and ensures continuous and uniform flux supply.

[0016] 2. In the flux co-supply device of the laser-arc hybrid welding equipment, the flux body is limited and guided by the sliding cooperation of the limiting guide strip and the limiting guide groove, and is equipped with the waist-reducing guide wheel. This can effectively limit the deviation and shaking of the flux during the flux delivery process, improve the stability of flux delivery, eliminate the problems of accumulation and deviation, effectively improve the weld formation quality, and reduce welding defects such as porosity, undercut, and incomplete welding.

[0017] 3. In the flux co-supply device of this laser-arc hybrid welding equipment, the intelligent co-control module can intelligently control the synchronous start and stop of the servo motors at both ends to work together according to the start signal and power-on duration of the welding start induction switch, so as to realize the real-time synchronization of welding start and flux supply. It has a high degree of automation, strong adaptability, and greatly improves the continuity of welding operations and production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation position of the sliding adjustment frame of the present invention; Figure 3 This is a schematic diagram of the structure of the driving component of the present invention; Figure 4 This is a schematic diagram of the limiting guide groove of the present invention; Figure 5 This is a schematic diagram of the structure of the limiting guide strip of the present invention; Figure 6 This is a schematic diagram of the internal structure of the flux supply box of the present invention; Figure 7 This is a schematic diagram of the gear ring structure of the present invention; Figure 8 This is a schematic diagram of the waist-reducing guide wheel of the present invention; Figure 9 This is a flowchart illustrating the processing sequence executed by the intelligent collaborative control module in this invention.

[0019] The meanings of the labels in the diagram are as follows: 1. Main welding gun; 2. Laser arc welding head; 3. Angle adjustment frame; 4. Functional assembly housing; 5. Sliding adjustment frame; 6. Flux body; 7. Gear groove; 8. Drive shaft; 9. First gear; 10. Flux supply box; 11. First servo motor; 12. Motor drive spindle; 13. Worm gear; 14. Worm wheel; 15. Protective tube; 16. Limiting guide bar; 17. Limiting guide groove; 18. Flux winding and unwinding reel; 19. Reel drive end plate; 20. Second servo motor; 22. Output gear; 23. Gear ring; 24. Guide wheel mounting bracket; 25. Retractable guide wheel; 26. Intelligent collaborative control module; 27. Welding start induction switch. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] Example like Figures 1-9 As shown, the device includes a main welding torch 1 and a flux supply box 10. The main welding torch 1 is equipped with a laser arc welding head 2 at its end for performing laser arc hybrid welding operations. The main welding torch 1 is also equipped with a fixed angle adjustment frame 3 at its end, which can adjust the welding angle according to the welding conditions to adapt to different welding workpieces and welding posture requirements. The main welding torch 1 is equipped with a welding start induction switch 27, which is electrically connected to the laser arc welding head 2 to control the start and stop of the laser arc welding head 2.

[0024] Angle adjustment frame 3 is fixed to the end away from the main welding gun 1 with a functional assembly housing 4. The end of the functional assembly housing 4 is fixed with a sliding adjustment frame 5. The flux body 6 is slidably assembled inside the sliding adjustment frame 5.

[0025] The flux body 6 has a toothed groove 7 on its upper end. The transmission shaft 8 is rotatably installed on the inner side of the upper end of the sliding adjustment frame 5. The first gear 9 is fixed on the outer side of the transmission shaft 8. The first gear 9 meshes with the toothed groove 7 to drive the flux body 6 to slide smoothly through the gear meshing.

[0026] The functional assembly housing 4 integrates an intelligent collaborative control module 26 and a drive component. The drive component includes a first servo motor 11, a motor drive spindle 12, a worm 13, and a worm wheel 14. The first servo motor 11 is fixed inside the functional assembly housing 4, and its output end is connected to the motor drive spindle 12. The worm wheel 14 is fixed on the outside of the motor drive spindle 12, and the worm 13 is fixed at the end of the drive shaft 8. The worm wheel 14 and the worm 13 mesh with each other. During operation, the first servo motor 11 drives the motor transmission spindle 12 to rotate, which in turn drives the worm gear 14 to mesh with the worm 13, thereby driving the transmission shaft 8 and the first gear 9 to rotate, realizing the end-end auxiliary pushing of the flux body 6 and compensating for the power loss during long-distance transportation.

[0027] A protective tube 15 is installed between the flux supply box 10 and the sliding adjustment frame 5. The two ends of the protective tube 15 are fixedly connected to both of them, which can protect the flux body 6 conveyed inside from dust and impact, and prevent the external environment from interfering with the flux delivery. The sliding adjustment frame 5 and the protective tube 15 are symmetrically fixed with limiting guide strips 16 inside. The flux body 6 is symmetrically opened with limiting guide grooves 17 inside. The limiting guide strips 16 are slidably engaged in the limiting guide grooves 17. The flux body 6 is given all-round limiting guidance, which effectively prevents deviation, shaking and jamming during the conveying process and ensures the conveying accuracy and stability. The flux supply box 10 is equipped with a supply component and a coordinating component. The supply assembly includes a flux take-up and untake-down reel 18 and a reel drive end plate 19. The flux take-up and untake-down reel 18 is rotatably mounted inside the flux supply box 10. The flux body 6 is wound and stored on the outside of the flux take-up and untake-down reel 18 to realize the storage and continuous supply of flux. The reel drive end plate 19 is symmetrically fixed at both ends of the flux take-up and untake-down reel 18 and is used to cooperate with the transmission to realize the rotation of the reel for feeding. The collaborative components include a second servo motor 20, an output gear 22, and a gear ring 23. The second servo motor 20 is fixed inside the flux supply box 10, and the output gear 22 is fixed at its output end. The gear ring 23 is fixed on the outside of the reel drive end plate 19. The output gear 22 and the gear ring 23 are meshed and connected. During operation, the second servo motor 20 drives the output gear 22 to rotate, which in turn drives the reel drive end plate 19 and the flux take-up and untake-down reel 18 to rotate synchronously through the gear ring 23, realizing automatic feeding at the source and forming a dual-end collaborative feeding structure with the gun end drive component.

[0028] The flux supply box 10 is symmetrically fixed with guide wheel mounting supports 24 inside. The two guide wheel mounting supports 24 are rotatably mounted with waisted guide wheels 25 inside. The waisted guide wheels 25 adopt a waisted structure that is thick at both ends and thin in the middle, and the transition between the thick and thin parts is smooth with an arc surface. The flux body 6 is clamped between the two waisted guide wheels 25. This structure can centrally guide and tension the flux body 6, preventing bending and accumulation of flux during the conveying process, and further improving the smoothness of the conveying process. The flux body 6 can be made of aluminum or stainless steel, and can be flexibly adapted to different base materials and welding process requirements to meet the welding needs of different working conditions. The intelligent collaborative control module 26 is the core control unit of the device, integrating a receiving module, a feedback module, a central module, and a dual-transmitting module; During operation, the receiving module monitors the power-on start signal of the welding start induction switch 27 in real time. After acquiring the signal, it feeds it back to the central module in real time through the feedback module. The central module collects and analyzes the power-on duration of the induction switch to determine the welding operation status and welding progress. Then, according to the operation requirements, it sends control signals to the first servo motor 11 and the second servo motor 20 through two transmitting modules respectively, accurately controlling the synchronous start and stop of the two servo motors and matching their speeds. This achieves intelligent coordinated linkage between welding action and flux supply, ensuring that the flux supply speed, supply amount and welding speed are accurately matched, thus avoiding problems such as supply delay, interruption and oversupply from the root. The working principle of the present invention: When the device is in a power-on standby state, the intelligent collaborative control module 26 is in a signal monitoring standby state. The flux body 6 is kept neatly stored and in a non-offset and slack state under the constraint of the limiting guide structure and the waist-shaped guide wheel 25. The whole device can respond to welding operation commands at any time. When the welding operation is started, the worker triggers the welding start induction switch 27, which directly triggers the laser arc welding head 2 to be powered on and start the laser arc hybrid welding operation. On the other hand, the intelligent collaborative control module 26 captures the start-up electrical signal of the induction switch in real time, and performs intelligent analysis and judgment on the signal power-on duration and welding operation conditions, and quickly outputs synchronous control commands to link the second servo motor 20 and the first servo motor 11 to power on and start synchronously and operate in coordination, so as to achieve seamless connection between welding operation and flux supply. During operation, the second servo motor 20 located inside the flux supply box 10 works continuously. Through the meshing transmission of the output gear 22 and the gear ring 23, it drives the reel drive end plate 19 and the flux take-up and unwinding reel 18 to rotate at a constant speed, actively feeding the flux body 6 wound on the outside of the reel from the source, so as to realize the continuous and stable discharge of flux and ensure the continuity of feeding from the supply source. Meanwhile, the first servo motor 11 inside the functional assembly housing 4 operates synchronously with the speed, and drives the worm gear 14 and worm 13 to mesh and drive through the motor drive main shaft 12. The first gear 9 is rotated through the drive shaft 8. The meshing structure between the first gear 9 and the upper tooth groove 7 of the flux body 6 is used to accurately assist the pushing of the welding end of the flux body 6, forming a dual-end collaborative drive mode, which effectively makes up for the defects of power attenuation and insufficient thrust in the traditional single-end pushing structure during long-distance transportation. During the entire flux delivery process, the protective tube 15 and the limiting guide strip 16 inside the sliding adjustment frame 5 slide in conjunction with the limiting guide groove 17 of the flux body 6. With the central clamping and arc transition guiding limit of the two sets of waist-shaped guide wheels 25, the flux body 6 is subjected to all-round correction, anti-shaking and anti-bending constraints during the movement process. With the coordinated operation of the entire system, the flux body 6 can be delivered smoothly, at a constant speed, and continuously throughout the welding process, precisely matching the operating speed of laser arc welding. This ensures a full and uniform weld pool, effectively avoiding welding defects such as uneven weld formation, porosity, undercut, and incomplete welding, significantly improving weld quality. Simultaneously, it guarantees the continuity of welding operations, effectively enhancing overall welding efficiency and automation levels. When welding is completed and the induction switch is de-energized and reset, both servo motors stop synchronously, and the device automatically enters standby mode, awaiting the next operating command.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flux supply device for a laser-arc hybrid welding equipment, comprising a main welding gun (1) and a flux supply box (10), wherein a laser-arc welding head (2) is provided at the end of the main welding gun (1), an angle adjustment frame (3) is fixedly connected to the end of the main welding gun (1), and a welding start induction switch (27) is provided on the inner side of the main welding gun (1), wherein the welding start induction switch (27) is used to start the laser-arc welding head (2), characterized in that: The angle adjustment frame (3) is fixedly connected to a functional assembly housing (4) at one end away from the main welding gun (1). The functional assembly housing (4) is fixedly connected to a sliding adjustment frame (5) at one end away from the angle adjustment frame (3). The inner side of the sliding adjustment frame (5) is slidably connected to a flux body (6). The upper end of the flux body (6) is provided with a toothed groove (7). The inner side of the upper end of the sliding adjustment frame (5) is rotatably connected to a drive shaft (8). The outer side of the drive shaft (8) is fixedly connected to a first gear (9). The first gear (9) meshes with the toothed groove (7). The inner side of the functional assembly housing (4) is provided with an intelligent collaborative control module (26) and a drive component. The inner side of the main welding gun (1) is provided with a supply component and a collaborative component.

2. The flux co-supply device for laser-arc hybrid welding equipment according to claim 1, characterized in that: The drive assembly includes a first servo motor (11), a motor drive spindle (12), a worm (13), and a worm wheel (14). The first servo motor (11) is fixedly connected to the inner side of the functional assembly housing (4). The output end of the first servo motor (11) is fixedly connected to the motor drive spindle (12). The worm wheel (14) is fixedly connected to the outer side of the motor drive spindle (12). The worm (13) is fixedly connected to the outer side of the drive shaft (8) near the worm wheel (14). The worm wheel (14) and the worm (13) are meshed together.

3. The flux co-supply device for laser-arc hybrid welding equipment according to claim 1, characterized in that: A protective pipe (15) is provided between the flux supply box (10) and the sliding adjustment frame (5), and the two ends of the protective pipe (15) are fixedly connected to the flux supply box (10) and the sliding adjustment frame (5) respectively.

4. The flux co-supply device for laser-arc hybrid welding equipment according to claim 3, characterized in that: The sliding adjustment frame (5) and the inner side of the protective tube (15) are symmetrically fixedly connected with limit guide strips (16), and the inner side of the flux body (6) is symmetrically opened with limit guide grooves (17). The limit guide strips (16) are located inside the limit guide grooves (17) and are slidably connected with the limit guide grooves (17).

5. The flux co-supply device for laser-arc hybrid welding equipment according to claim 1, characterized in that: The supply assembly includes a flux take-up and untake-down reel (18) and a reel drive end plate (19). The flux take-up and untake-down reel (18) rotates inside the flux supply box (10). The reel drive end plates (19) are symmetrically fixedly connected to the outer sides of both ends of the flux take-up and untake-down reel (18). The flux body (6) is wound around the outer side of the flux take-up and untake-down reel (18).

6. The flux co-supply device for laser-arc hybrid welding equipment according to claim 5, characterized in that: The coordinating components include a second servo motor (20), an output gear (22), and a gear ring (23). The second servo motor (20) is fixedly connected to the inner side of the flux supply box (10). The output end of the second servo motor (20) is fixedly connected to the output gear (22). The gear ring (23) is fixedly connected to the outer side of the reel drive end plate (19). The output gear (22) meshes with the gear ring (23).

7. The flux co-supply device for laser-arc hybrid welding equipment according to claim 1, characterized in that: The flux supply box (10) is symmetrically fixedly connected to the inner side of the guide wheel mounting bracket (24), and the inner side of the two guide wheel mounting brackets (24) is symmetrically rotatably connected to the waisted guide wheel (25). The waisted guide wheel (25) has a waisted structure that is thick at both ends and thin in the middle. The transition joint between the thick and thin parts adopts a circular arc surface transition structure. The flux body (6) is located between the two waisted guide wheels (25).

8. The flux co-supply device for laser-arc hybrid welding equipment according to claim 1, characterized in that: The flux body (6) is made of aluminum.

9. The flux co-supply device for laser-arc hybrid welding equipment according to claim 1, characterized in that: The flux body (6) is made of stainless steel.

10. A flux co-supply device for laser-arc hybrid welding equipment according to claims 1-9, characterized in that: The intelligent collaborative control module (26) has the following features: The receiving module is used to receive the signal when the welding start induction switch (27) is energized; Feedback module, wherein the feedback signal is used to feed back the received signal to the central module; The central module analyzes the energization time of the welding start induction switch (27) and then controls the two transmitting modules to transmit signals. Two transmitting modules and two transmitting signals control the start and stop of the first servo motor (11) and the second servo motor (20) respectively. The transmitting modules are used to transmit signals to the first servo motor (11) and the second servo motor (20).

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