A fluctuating rotary magnetic field device for assisting laser brazing

Abstract

The application belongs to the technical field of metal processing machine tools, and particularly relates to a fluctuation type rotating magnetic field device for assisting laser brazing, which solves the technical problems of large size, heavy weight, high requirements for operation space and load bearing, high cost and inflexible magnetic field direction adjustment of existing devices, and comprises an X\Y direction moving platform, a rotating drive motor, a neodymium-iron-boron permanent magnet and a permanent magnet support assembly; the rotating drive motor and the Y direction moving platform are installed on the X direction moving platform, the shaft end of the rotating drive motor is provided with a first bevel gear, the sliding part of the X direction moving platform is provided with a horizontal transmission shaft, the horizontal transmission shaft is provided with a second bevel gear, the first and second bevel gears are engaged, the other end of the horizontal transmission shaft is hingedly connected with a universal joint, the permanent magnet support assembly comprises a permanent magnet support platform, a drive rotating shaft, a rotating shaft support platform and three groups of electromagnetic telescopic cylinders, the neodymium-iron-boron permanent magnet is fixed to the permanent magnet support platform, and the lower end of the drive rotating shaft is hingedly connected with the universal joint.

Description

Technical Field

[0001] This invention belongs to the technical field of metal processing machine tools, and particularly relates to laser brazing, specifically a wave-type rotating magnetic field device for assisting laser brazing. Background Technology

[0002] Magnetic field-assisted devices refer to specialized equipment that uses the physical effects of magnetic fields to assist in completing specific tasks or processes. Their core advantage lies in their non-contact operating mechanism and precise and controllable regulation, which can optimize the performance and improve the efficiency of the target process without disrupting the integrity of the original production system or work structure. Therefore, they have been widely and deeply applied in many key industrial manufacturing fields such as machining, laser brazing, and additive manufacturing.

[0003] Despite the significant advantages of magnetic field-assisted devices, current mainstream devices still face numerous limitations in practical applications, hindering their further promotion and application depth. Firstly, size and weight are significant issues. Most magnetic field-assisted devices are large and heavy due to limitations in magnetic circuit design and drive component layout, placing high demands on the spatial dimensions of application scenarios and increasing the load on the working environment. This makes them particularly unsuitable for small and medium-sized precision machining equipment or mobile operation scenarios. Furthermore, the low ratio of magnetic field strength to device volume results in poor overall device integration with laser processing performance. Secondly, manufacturing costs are high. The high material costs and complex processing techniques of key components such as core electromagnetic drive components and high-precision magnetic field control modules lead to high overall equipment costs. Thirdly, the flexibility of magnetic field direction control is insufficient. Most existing electromagnetic magnetic field-assisted devices have complex magnetic field direction adjustment mechanisms, often requiring fixed angle adjustments or cumbersome mechanical linkages. This makes it difficult to achieve real-time, continuous, omnidirectional direction switching, and cannot accurately match the dynamic changes in magnetic field direction required in complex processes, limiting their application effectiveness in multi-dimensional process control scenarios. Summary of the Invention

[0004] To overcome the technical shortcomings of existing magnetic field auxiliary devices, such as large size, heavy weight, high requirements for working space and load-bearing capacity, high manufacturing cost, and inflexible magnetic field direction adjustment, this invention provides a wave-type rotating magnetic field device for assisting laser brazing.

[0005] This invention provides a wave-type rotating magnetic field device for assisting laser brazing, comprising an X-direction moving platform, a Y-direction moving platform, a rotary drive motor, a neodymium iron boron permanent magnet, and a permanent magnet support assembly. The rotary drive motor and the Y-direction moving platform are respectively mounted on the sliding parts of the X-direction moving platform. The motor shaft of the rotary drive motor is oriented downwards, and a first bevel gear is fixedly mounted on the shaft end. A horizontal transmission shaft is also mounted on the sliding parts of the X-direction moving platform via a bearing seat. A second bevel gear is fixedly mounted on one end of the horizontal transmission shaft, and the first and second bevel gears mesh and transmit power. The other end of the horizontal transmission shaft is hinged to a universal joint. The coupling and permanent magnet support assembly include a permanent magnet support platform, a drive shaft, a shaft support platform, and three sets of electromagnetic telescopic cylinders. Neodymium iron boron permanent magnets are fixedly connected to the permanent magnet support platform. The drive shaft is vertically fixedly connected to the bottom center of the permanent magnet support platform. The shaft support platform has a through hole in the middle that is clearance-fitted with the drive shaft. The bottom of the three sets of electromagnetic telescopic cylinders is hinged to the sliding part of the Y-direction moving platform. The top of the three sets of electromagnetic telescopic cylinders is connected to the bottom of the shaft support platform through a universal joint. The lower end of the drive shaft passes through the through hole of the shaft support platform and is hinged to the free end of the universal coupling.

[0006] Preferably, the rotary drive motor is mounted via a motor support frame, which includes an upper fixed plate, a lower fixed plate, multiple rubber columns, and multiple support columns. The lower fixed plate is fixedly connected to the sliding component of the X-direction moving platform via the multiple support columns. The multiple rubber columns are connected between the lower fixed plate and the upper fixed plate. Both the lower fixed plate and the upper fixed plate have clearance holes to avoid the motor shaft of the rotary drive motor. The rotary drive motor is fixedly mounted on the top of the upper fixed plate.

[0007] Preferably, both the upper and lower fixing plates are circular plates, the support columns are evenly distributed along the circumference of the lower fixing plate, and the rubber columns are evenly distributed along the circumference of the upper fixing plate.

[0008] Preferably, the X-direction moving platform includes an X-direction drive motor, a bottom frame, an X-direction sliding plate, an X-direction ball screw, and an X-direction limiter. The X-direction drive motor is fixed to the bottom frame via a bracket. The X-direction ball screw is connected to the X-direction drive motor via a coupling. The X-direction sliding plate is slidably fitted to the top of the bottom frame via an X-direction guide rail. The sliding direction of the X-direction sliding plate is consistent with the axial direction of the X-direction ball screw. The nut of the X-direction ball screw is fixed to the X-direction sliding plate via a support. The X-direction limiter is fixedly connected to the X-direction sliding plate and is positioned opposite to the end of the X-direction ball screw. The X-direction limiter is used to limit the movement of the X-direction sliding plate.

[0009] Preferably, the Y-direction moving platform includes a Y-direction drive motor, a Y-direction sliding plate, a Y-direction ball screw, and a Y-direction limiter. The Y-direction drive motor is fixed to the X-direction sliding plate via a bracket. The Y-direction ball screw is connected to the Y-direction drive motor via a coupling. The Y-direction sliding plate slides to the top of the X-direction sliding plate via a Y-direction guide rail. The sliding direction of the Y-direction sliding plate is consistent with the axial direction of the Y-direction ball screw. The nut of the Y-direction ball screw is fixed to the Y-direction sliding plate via a support. The Y-direction limiter 26 is fixedly connected to the X-direction sliding plate 20 and is positioned opposite to the end of the Y-direction ball screw 25, used to limit the movement of the Y-direction sliding plate 24.

[0010] Preferably, the rotating shaft support platform is a circular plate structure, and three sets of electromagnetic telescopic cylinders are evenly distributed along the circumference of the rotating shaft support platform.

[0011] The technical solution provided by this invention has the following technical effects compared with the prior art:

[0012] This invention provides a small rotating magnetic field device that uses a permanent magnet-mechanical transmission method to provide magnetic field assistance in the manufacturing process. Compared with electromagnetic magnetic field devices, it is smaller in size, more adaptable to the working environment, and more flexible and convenient in installation and arrangement; compared with electromagnetic devices, it is less expensive and more economical and practical. The bottom frame has mutually perpendicular X-axis and Y-axis guide rails, which provide two degrees of freedom for the magnetic field to move in two directions. Below the magnetic field platform are multiple sets of electromagnetic telescopic cylinders, which provide multiple degrees of freedom for the magnetic field to rotate in multiple directions. Therefore, it has many degrees of freedom and high flexibility. By combining and controlling the movement of the electromagnetic telescopic cylinders and the two moving platforms, the magnetic field strength and direction can be varied in a fluctuating manner to assist laser brazing and improve the brazing quality. Attached Figure Description

[0013] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is an overall assembly diagram of a wave-type rotating magnetic field device for assisting laser brazing according to a certain embodiment of the present invention;

[0016] Figure 2 for Figure 1 A structural diagram from the second angle;

[0017] Figure 3 for Figure 1 A structural diagram from the third angle;

[0018] Figure 4 This is a schematic diagram of the solder wetting angle in laser brazing without a magnetic field.

[0019] Figure 5 A schematic diagram of the wetting angle of the brazing filler metal under a fluctuating rotating magnetic field during laser brazing;

[0020] Figure 6 This is a comparison diagram of the hardness of the brazed layer when laser brazing is performed under different magnetic field intensities using the wave-type rotating magnetic field device for auxiliary laser brazing in a certain embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram illustrating the use of a wave-type rotating magnetic field device for assisting laser brazing, as described in a certain embodiment of the present invention.

[0022] In the diagram: 1. Rotary drive motor; 2. Neodymium iron boron permanent magnet; 3. Motor shaft; 4. First bevel gear; 5. Bearing housing; 6. Horizontal transmission shaft; 7. Second bevel gear; 8. Universal coupling; 9. Permanent magnet support platform; 10. Drive shaft; 11. Shaft support platform; 12. Electromagnetic telescopic cylinder; 13. Universal joint; 14. Upper fixing plate; 15. Lower fixing plate; 16. Rubber column; 17. Support column; 18. X 19. Drive motor; 20. Bottom frame; 21. X-axis sliding plate; 22. X-axis ball screw; 23. X-axis limiter; 24. Y-axis drive motor; 25. Y-axis sliding plate; 26. Y-axis ball screw; 27. Y-axis limiter; 28. Laser head; 29. ​​Shielding gas and brazing powder; 30. Laser beam; 31. Steel substrate; 32. Magnetic field lines; 33. Substrate placement platform; 34. X-axis guide rail; 35. Y-axis guide rail. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0024] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0026] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] In one embodiment, such as Figure 1 As shown, a wave-type rotating magnetic field device for assisting laser brazing is disclosed, including an X-direction moving platform, a Y-direction moving platform, a rotary drive motor 1, a neodymium iron boron permanent magnet 2, and a permanent magnet support assembly. The rotary drive motor 1 and the Y-direction moving platform are respectively mounted on the sliding parts of the X-direction moving platform. The motor shaft 3 of the rotary drive motor 1 is arranged downwards and a first bevel gear 4 is fixedly mounted on the shaft end. A horizontal transmission shaft 6 is also mounted on the sliding part of the X-direction moving platform through a bearing seat 5. A second bevel gear 7 is fixedly mounted on one end of the horizontal transmission shaft 6. The first bevel gear 4 and the second bevel gear 7 mesh and transmit power. A universal coupling 8 is hinged to the other end of the horizontal transmission shaft 6. The body support assembly includes a permanent magnet support platform 9, a drive shaft 10, a shaft support platform 11, and three sets of electromagnetic telescopic cylinders 12. Neodymium iron boron permanent magnets 2 are fixedly connected to the permanent magnet support platform 9. The drive shaft 10 is vertically fixedly connected to the bottom center of the permanent magnet support platform 9. The shaft support platform 11 has a through hole in the middle that is clearance-fitted with the drive shaft 10. The bottom of the three sets of electromagnetic telescopic cylinders 12 is hinged to the sliding part of the Y-direction moving platform. The top of the three sets of electromagnetic telescopic cylinders 12 is connected to the bottom of the shaft support platform 11 through a universal joint 13. The lower end of the drive shaft 10 passes through the through hole of the shaft support platform 11 and is hinged to the free end of the universal coupling 8.

[0028] The X-direction moving platform provides X-direction movement for the NdFeB permanent magnet 2, and the Y-direction moving platform provides Y-direction movement for the NdFeB permanent magnet 2. Driven by the rotary drive motor 1, the motor shaft 3 drives the drive shaft 10 to rotate via the first bevel gear 4, the second bevel gear 7, the horizontal transmission shaft 6, and the universal coupling 8. During rotation, the angle of the drive shaft 10 continuously changes, and the shaft support platform 11 swings with the change in the angle of the drive shaft 10. When the shaft support platform 11 swings, the electromagnetic telescopic cylinder 12 provides support. In this invention, the magnetic field source uses strong magnetic materials to provide a rotating magnetic field through mechanical motion. The device provides a high magnetic field strength, occupies little space, has a large modification space, and can be adapted to motors of different models and sizes.

[0029] The working process of the wave-type rotating magnetic field device for assisting laser brazing described in this invention is as follows: A steel substrate 30 is placed on a substrate placement platform 32. The wave-type rotating magnetic field device described in this invention is placed below the substrate placement platform 32. The steel substrate 30 is positioned directly above the neodymium iron boron permanent magnet 2. The laser head 27 is positioned directly above the steel substrate 30. Shielding gas and brazing powder 28 are placed at the weld point. The laser beam 29 is directly aimed at the weld point to begin welding. The magnetic field lines 31 of the neodymium iron boron permanent magnet 2 are as follows... Figure 7 As shown, the rotary drive motor 1 drives the horizontal transmission shaft 6 to move, and the horizontal transmission shaft 6 drives the neodymium iron boron permanent magnet 2 to rotate to provide a rotating magnetic field. When the rotating shaft support platform 11 swings, the electromagnetic telescopic cylinder 12 provides support, providing the neodymium iron boron permanent magnet 2 with rotational degrees of freedom in multiple directions other than the horizontal direction. The X-direction moving platform provides the neodymium iron boron permanent magnet 2 with left-right movement degrees of freedom, and the Y-direction moving platform provides the neodymium iron boron permanent magnet 2 with front-back movement degrees of freedom. The X and Y directions are perpendicular. By coordinating the movement of the rotary drive motor 1 and the drive shaft 10, the intensity and direction of the fluctuating rotating magnetic field can be adjusted.

[0030] Based on the above embodiments, in a preferred embodiment, the rotary drive motor 1 is mounted via a motor support frame. The motor support frame includes an upper fixed plate 14, a lower fixed plate 15, multiple rubber columns 16, and multiple support columns 17. The lower fixed plate 15 is fixedly connected to the sliding member of the X-direction moving platform via the multiple support columns 17. The multiple rubber columns 16 connect the lower fixed plate 15 and the upper fixed plate 14. Both the lower fixed plate 15 and the upper fixed plate 14 have clearance holes to allow the motor shaft 3 of the rotary drive motor 1 to pass. The rotary drive motor 1 is fixedly mounted to the top of the upper fixed plate 14. The rubber columns 16 serve a shock absorption function.

[0031] Based on the above embodiments, in a preferred embodiment, both the upper fixing plate 14 and the lower fixing plate 15 are circular plates, the support columns 17 are evenly distributed along the circumference of the lower fixing plate 15, and the rubber columns 16 are evenly distributed along the circumference of the upper fixing plate 14. This arrangement provides a reasonable structural design.

[0032] Based on the above embodiments, in a preferred embodiment, the X-direction moving platform includes an X-direction drive motor 18, a bottom frame 19, an X-direction sliding plate 20, an X-direction ball screw 21, and an X-direction limiter 22. The X-direction drive motor 18 is fixed to the bottom frame 19 by a bracket. The X-direction ball screw 21 is connected to the X-direction drive motor 18 via a coupling. The X-direction sliding plate 20 is slidably fitted to the top of the bottom frame 19 via an X-direction guide rail 33. The sliding direction of the X-direction sliding plate 20 is consistent with the axial direction of the X-direction ball screw 21. The nut of the X-direction ball screw 21 is fixed to the X-direction sliding plate 20 by a support. The X-direction limiter 22 is fixedly connected to the X-direction sliding plate 20 and is positioned opposite to the end of the X-direction ball screw 21. The X-direction limiter 22 is used to limit the movement of the X-direction sliding plate 20. The bracket connecting the X-axis drive motor 18 to the bottom frame 19 is an L-shaped bent plate. Both the bottom frame 19 and the X-axis sliding plate 20 are elongated plates. The X-axis drive motor 18 is fixed to the end of the bottom frame 19. The X-axis guide rail 33 is arranged along the length of the bottom frame 19. The length direction of the X-axis sliding plate 20 is consistent with the length direction of the X-axis guide rail 33 and is parallel to the axial direction of the X-axis ball screw 21. When the X-axis drive motor 18 drives the X-axis ball screw 21 to rotate, the nut will move along the X-axis ball screw 21. Since the nut is fixedly connected to the X-axis sliding plate 20 through the support, the movement of the nut will drive the X-axis sliding plate 20 to move along the X-axis guide rail 33, causing the distance between the end of the X-axis ball screw 21 and the X-axis limiter 22 to change. The X-axis limiter 22 can limit the maximum stroke of the X-axis sliding plate 20. The X-axis sliding plate 20 is the sliding component of the aforementioned X-axis moving platform.

[0033] Based on the above embodiments, in a preferred embodiment, the Y-direction moving platform includes a Y-direction drive motor 23, a Y-direction sliding plate 24, a Y-direction ball screw 25, and a Y-direction limiter 26. The Y-direction drive motor 23 is fixed to the X-direction sliding plate 20 by a bracket. The Y-direction ball screw 25 is connected to the Y-direction drive motor 23 via a coupling. The Y-direction sliding plate 24 is slidably fitted to the top of the X-direction sliding plate 20 via a Y-direction guide rail 34. The sliding direction of the Y-direction sliding plate 24 is consistent with the axial direction of the Y-direction ball screw 25. The nut of the Y-direction ball screw 25 is fixed to the Y-direction sliding plate 24 by a support. The Y-direction limiter 26 is fixedly connected to the X-direction sliding plate 20 and is positioned opposite to the end of the Y-direction ball screw 25 to limit the movement of the Y-direction sliding plate 24. The Y-axis drive motor 23 and the Y-axis limiter 26 are respectively connected to the L-shaped curved plates of the X-axis sliding plate 20. The Y-axis guide rail 34 of the Y-axis moving platform is arranged along the width direction of the X-axis sliding plate 20. The axial direction of the Y-axis ball screw 25 is consistent with the direction of the Y-axis guide rail 34. When the Y-axis drive motor 23 drives the Y-axis ball screw 25 to rotate, the nut of the Y-axis ball screw 25 will move along the length direction of the Y-axis ball screw 25. The nut of the Y-axis ball screw 25 is fixedly connected to the Y-axis sliding plate 24 through the support, thus driving the Y-axis sliding plate 24 to move along the Y-axis guide rail 34. The Y-axis limiter 26 can limit the maximum stroke of the Y-axis sliding plate 24. The Y-axis sliding plate 24 is the sliding component of the aforementioned Y-axis moving platform.

[0034] Based on the above embodiments, in a preferred embodiment, the rotating shaft support platform 11 is a circular plate structure, and three sets of electromagnetic telescopic cylinders 12 are evenly distributed along the circumference of the rotating shaft support platform 11. This structural arrangement is reasonable, ensuring smoother rotation and a more robust structure.

[0035] contrast Figure 4 and Figure 5 It can be seen that after using the wave-type rotating magnetic field device for assisted laser brazing described in this invention, the wetting angle of the brazing filler metal is significantly reduced compared to the condition without a magnetic field, indicating that the wetting and spreading ability of the brazing filler metal on the substrate is enhanced. The mechanism is as follows: when the rotating magnetic field acts on the conductive molten pool, it generates a time-varying electromagnetic force, driving the molten pool to form periodic cyclic convection and shear disturbances, ensuring continuous replenishment of the liquid brazing filler metal at the wetting front and suppressing spreading interruptions caused by local material shortages; simultaneously, it enhances heat and mass transfer, weakens the interfacial concentration boundary layer, promotes the diffusion of active elements and interfacial reactions, and reduces interfacial energy, ultimately resulting in a decreased wetting angle and more complete spreading. On the other hand, the average hardness of the brazed layer under the condition without a magnetic field is 155.7 HV, compared to... Figure 6It is evident that the hardness of the brazed layer is improved under different magnetic field intensities. The main reasons include: magnetic field-induced electromagnetic stirring improves temperature and solute field distribution, increases nucleation rate, and inhibits dendrite growth, resulting in grain refinement; the finer grain structure increases the resistance of grain boundaries to dislocation movement, thereby improving hardness; simultaneously, circulating flow promotes bubble escape and inclusion migration, reduces porosity and other defects, and increases density, thus improving hardness and stability. Overall, the wave-like rotating magnetic field achieves enhanced wettability and increased hardness through the synergistic effects of electromagnetic drive, flow enhancement, interface activation, and microstructure refinement. However, the magnetic field parameters need to be optimized within a reasonable range to obtain the best results.

[0036] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered within the protection scope of the claims.

Claims

1. A wave-type rotating magnetic field device for assisting laser brazing, characterized in that, The system includes an X-direction moving platform, a Y-direction moving platform, a rotary drive motor (1), a neodymium iron boron permanent magnet (2), and a permanent magnet support assembly. The rotary drive motor (1) and the Y-direction moving platform are respectively mounted on the sliding parts of the X-direction moving platform. The motor shaft (3) of the rotary drive motor (1) is set downward and a first bevel gear (4) is fixedly mounted on the shaft end. A horizontal transmission shaft (6) is also mounted on the sliding parts of the X-direction moving platform through a bearing seat (5). A second bevel gear (7) is fixedly mounted on one end of the horizontal transmission shaft (6). The first bevel gear (4) and the second bevel gear (7) mesh and drive each other. A universal coupling (8) is hinged to the other end of the horizontal transmission shaft (6). The permanent magnet support assembly includes a permanent magnet support platform (9). The drive shaft (10), shaft support platform (11), and three sets of electromagnetic telescopic cylinders (12) are connected. The neodymium iron boron permanent magnet (2) is fixedly connected to the permanent magnet support platform (9). The drive shaft (10) is vertically fixedly connected to the bottom center of the permanent magnet support platform (9). The shaft support platform (11) has a through hole in the middle that is clearance-fitted with the drive shaft (10). The bottom of the three sets of electromagnetic telescopic cylinders (12) is hinged to the sliding part of the Y-direction moving platform. The top of the three sets of electromagnetic telescopic cylinders (12) is connected to the bottom of the shaft support platform (11) through a cross universal joint (13). The lower end of the drive shaft (10) passes through the through hole of the shaft support platform (11) and is hinged to the free end of the universal coupling (8).

2. The wave-type rotating magnetic field device for assisting laser brazing according to claim 1, characterized in that, The rotary drive motor (1) is mounted on a motor support frame, which includes an upper fixed plate (14), a lower fixed plate (15), multiple rubber columns (16) and multiple support columns (17). The lower fixed plate (15) is fixedly connected to the sliding part of the X-direction moving platform through multiple support columns (17). Multiple rubber columns (16) are connected between the lower fixed plate (15) and the upper fixed plate (14). Both the lower fixed plate (15) and the upper fixed plate (14) have clearance holes to avoid the motor shaft (3) of the rotary drive motor (1). The rotary drive motor (1) is fixedly mounted on the top of the upper fixed plate (14).

3. The wave-type rotating magnetic field device for assisting laser brazing according to claim 2, characterized in that, Both the upper fixing plate (14) and the lower fixing plate (15) are circular plates. The support columns (17) are evenly distributed along the circumference of the lower fixing plate (15), and the rubber columns (16) are evenly distributed along the circumference of the upper fixing plate (14).

4. The wave-type rotating magnetic field device for assisting laser brazing according to claim 1, characterized in that, The X-direction moving platform includes an X-direction drive motor (18), a bottom frame (19), an X-direction sliding plate (20), an X-direction ball screw (21), and an X-direction limiter (22). The X-direction drive motor (18) is fixed to the bottom frame (19) by a bracket. The X-direction ball screw (21) is connected to the X-direction drive motor (18) via a coupling. The X-direction sliding plate (20) is slidably fitted to the top surface of the bottom frame (19) via an X-direction guide rail (33). The sliding direction of the X-direction sliding plate (20) is consistent with the axial direction of the X-direction ball screw (21). The nut of the X-direction ball screw (21) is fixed to the X-direction sliding plate (20) by a support. The X-direction limiter (22) is fixedly connected to the X-direction sliding plate (20) and is positioned opposite to the end of the X-direction ball screw (21). The X-direction limiter (22) is used to limit the movement of the X-direction sliding plate (20).

5. The wave-type rotating magnetic field device for assisting laser brazing according to claim 1, characterized in that, The Y-direction moving platform includes a Y-direction drive motor (23), a Y-direction sliding plate (24), a Y-direction ball screw (25), and a Y-direction limiter (26). The Y-direction drive motor (23) is fixed to the X-direction sliding plate (20) by a bracket. The Y-direction ball screw (25) is connected to the Y-direction drive motor (23) by a coupling. The Y-direction sliding plate (24) is slidably fitted to the top of the X-direction sliding plate (20) by a Y-direction guide rail (34). The sliding direction of the Y-direction sliding plate (24) is consistent with the axial direction of the Y-direction ball screw (25). The nut of the Y-direction ball screw (25) is fixed to the Y-direction sliding plate (24) by a support. The Y-direction limiter (26) is fixedly connected to the X-direction sliding plate (20) and is positioned opposite to the end of the Y-direction ball screw (25) to limit the movement of the Y-direction sliding plate (24).

6. A wave-type rotating magnetic field device for assisting laser brazing according to any one of claims 1-5, characterized in that, The rotating shaft support platform (11) is a circular plate structure, and three sets of electromagnetic telescopic cylinders (12) are evenly distributed along the circumference of the rotating shaft support platform (11).

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