Modularized magnetic pulse welding coil structure

Abstract

The utility model belongs to the technical field of magnetic pulse welding, and particularly relates to a modular magnetic pulse welding coil structure which comprises a plurality of pulse coil modules, a busbar and a plurality of positioning pipes. Wherein the plurality of pulse coil modules are connected in sequence to form an electrical series structure; the busbar provides a synchronous power supply for the plurality of pulse coil modules. A plurality of pulse coil modules are electrically connected in series to form an integral loop, current sequentially flows through the modules to excite and superpose a magnetic field, a busbar intensively inputs high-voltage pulse current to all the modules, synchronous generation of the magnetic field is ensured, and the problem that a traditional coil is difficult to produce in batches is solved. The pulse coil adopts a modular design, and the number of series coils can be flexibly adjusted according to actual conditions, so that multiple workpieces can be welded at a time, and the production efficiency of magnetic pulse welding is improved.

Description

Technical Field

[0001] This application belongs to the field of magnetic pulse welding technology, specifically relating to a modular magnetic pulse welding coil structure, which is particularly suitable for high-efficiency production scenarios involving simultaneous welding of multiple workpieces. Background Technology

[0002] Magnetic pulse welding technology uses magnetic field pulse energy to connect metal pipes, offering advantages such as non-contact welding and the absence of a heat-affected zone, and is widely used in automotive manufacturing, aerospace, and other fields. However, existing magnetic pulse welding coils are mostly single-coil structures, capable of welding only one workpiece at a time, resulting in low efficiency. Furthermore, traditional coils are bulky and lack flexibility. Current technologies typically use upper and lower support designs to open and close the coil, but this still cannot meet the need for simultaneous welding of multiple workpieces. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a modular magnetic pulse welding coil structure. Existing magnetic pulse welding coil structures are simple and cannot process multiple workpieces at the same time, resulting in low production efficiency.

[0004] This application provides a modular magnetic pulse welding coil structure, including:

[0005] Multiple pulse coil modules are connected in sequence to form an electrically connected series structure;

[0006] Busbars provide synchronous power to multiple pulse coil modules;

[0007] Multiple positioning tubes are inserted into multiple pulse coil modules to position the metal workpiece to be welded.

[0008] Optionally, the pulse coil module includes an upper half module and a lower half module, with a gap between the upper half module and the lower half module. Both the upper half module and the lower half module have embedded arc-shaped coils, and the arc-shaped coils in adjacent upper half modules are connected in series, and the arc-shaped coils in adjacent lower half modules are connected in series. A conductor block is connected between one end of the upper half module and the lower half module away from the busbar.

[0009] Optionally, the gap is provided with an insulating adhesive layer.

[0010] Optionally, both ends of the upper module are provided with upper lead wire noses, and adjacent upper modules are connected through the upper lead wire noses. Both ends of the lower module are provided with lower lead wire noses, and adjacent lower modules are connected through the lower lead wire noses.

[0011] Optionally, both the upper lead-out nose and the lower lead-out nose are provided with mounting holes, so that the upper lead-out noses on two adjacent upper half modules can be connected by bolts, and the lower lead-out noses on two adjacent lower half modules can be connected by bolts.

[0012] Optionally, the conductor block is connected to the corresponding upper lead lug and lower lead lug by bolts.

[0013] Optionally, the bus is provided with a positive terminal and a negative terminal, which are respectively connected to the upper lead lug and the lower lead lug on the corresponding pulse coil module by bolts.

[0014] Optionally, the mounting hole is a threaded hole or a round hole.

[0015] Optionally, the arc-shaped coil includes a chromium-zirconium-copper coil.

[0016] Optionally, the pulse coil module has a circular hole, and the positioning tube is inserted into the circular hole with a clearance fit between the positioning tube and the peripheral wall of the circular hole.

[0017] Optionally, the number of pulse coil modules is 2-10.

[0018] The beneficial effects of this application are that multiple pulse coil modules are connected in series to form an overall circuit. Current flows through each module sequentially, exciting and superimposing magnetic fields. A busbar centrally inputs high-voltage pulse current to all modules, ensuring synchronous generation of the magnetic field, thus solving the problem of traditional coils being difficult to mass-produce. The pulse coil adopts a modular design, which can flexibly adjust the number of coils connected in series according to actual conditions, thereby realizing the welding of multiple workpieces in a single operation and improving the production efficiency of magnetic pulse welding. Attached Figure Description

[0019] Figure 1 A schematic diagram of the modular magnetic pulse welding coil structure provided in this application;

[0020] Figure 2 An exploded structural diagram of the modular magnetic pulse welding coil structure provided in this application;

[0021] Figure 3 This is a schematic diagram of the structure of the pulse coil module provided in this application;

[0022] Figure 4 A cross-sectional view of the pulse coil module, positioning tube, and metal workpiece to be welded provided in this application.

[0023] In the diagram: 10, pulse coil module; 110, upper module; 111, upper lead wire lug; 120, lower module; 121, lower lead wire lug; 130, gap; 140, mounting hole; 150, circular hole; 20, busbar; 210, positive terminal; 220, negative terminal; 30, positioning tube; 40, conductor block; 50, metal workpiece to be welded. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0025] like Figure 1-4 As shown, the present application provides a modular magnetic pulse welding coil structure, including: multiple pulse coil modules 10, busbar 20, and multiple positioning tubes 30; wherein, the multiple pulse coil modules 10 are connected in sequence to form an electrical series structure; the busbar 20 provides synchronous power to the multiple pulse coil modules 10; the multiple positioning tubes 30 are respectively inserted on the multiple pulse coil modules 10 for positioning the metal workpiece 50 to be welded.

[0026] Compared with existing technologies, the modular magnetic pulse welding coil structure provided in this application forms an overall circuit by connecting multiple pulse coil modules 10 in series electrically. Current flows through each module sequentially, exciting and superimposing magnetic fields. A busbar 20 centrally inputs high-voltage pulse current to all modules, ensuring synchronous generation of the magnetic field, thus solving the problem of traditional coils being difficult to mass-produce. The pulse coil adopts a modular design, which can flexibly adjust the number of coils connected in series according to actual conditions, thereby realizing the welding of multiple workpieces in a single operation and improving the production efficiency of magnetic pulse welding.

[0027] In one possible implementation, the pulse coil module 10 includes an upper module 110 and a lower module 120, with a gap 130 between them. Both the upper and lower modules 110 contain embedded arc-shaped coils, with adjacent upper modules 110 connected in series and adjacent lower modules 120 connected in series. A conductor block 40 connects the ends of the upper and lower modules 110 furthest from the busbar 20. Specifically, the gap 130 prevents conductivity between the upper and lower modules 120. In the multiple pulse coil modules 10, current flows sequentially from the upper module 110 connected to the busbar 20 through all the arc-shaped coils of the upper module 110, then to the lower module 120 at the end, and returns to the busbar 20 after passing through all the arc-shaped coils of the lower module 120, forming a continuous current path.

[0028] In one possible implementation, an insulating adhesive layer is provided in the gap 130. This allows the gap 130 to be filled with high-temperature resistant epoxy resin to form an insulating layer, isolating potential differences. Alternatively, the insulating adhesive layer can be bonded between the upper module 110 and the lower module 120. This eliminates the risk of arcing caused by potential differences between modules, improving safety. The insulating adhesive layer absorbs vibration energy, extending the coil's lifespan.

[0029] In one possible implementation, such as Figure 3 As shown, both ends of the upper module 110 are provided with upper lead-out noses 111, and adjacent upper modules 110 are connected through the upper lead-out noses 111. Both ends of the lower module 120 are provided with lower lead-out noses 121, and adjacent lower modules 120 are connected through the lower lead-out noses 121. Specifically, the upper module 110 and the lower module 120 are mirror images of each other. The upper lead-out noses 111 and the lower lead-out noses 121 have the same shape, both being rectangular plates. The two upper lead-out noses 111 at both ends of the upper module 110 are centrally symmetrical, and the two lower lead-out noses 121 at both ends of the lower module 120 are centrally symmetrical. The upper lead-out noses 111 on adjacent upper modules 110 are stacked and connected, and the lower lead-out noses 121 on adjacent lower modules 120 are stacked and connected, forming a structure in which multiple pulse coil modules 10 are connected in series, resulting in a high connection strength.

[0030] It should be noted that the dashed box A represents the working area of ​​the pulse coil module 10.

[0031] In one possible implementation, both the upper lead-out nose 111 and the lower lead-out nose 121 have mounting holes 140 for bolt connection between adjacent upper lead-out noses 111 on each other, and for bolt connection between adjacent lower lead-out noses 121 on each other. This allows for quick disassembly and installation of multiple pulse coil modules 10, facilitating expansion of the number of pulse coil modules 10 and providing high flexibility.

[0032] In one possible implementation, the conductor block 40 is bolted to the corresponding upper lead lug 111 and lower lead lug 121. This allows for quick assembly and disassembly of the conductor block 40, and the pulse coil module 10 can be reduced or increased as needed.

[0033] In one possible implementation, bus 20 is provided with a positive terminal 210 and a negative terminal 220, which are respectively bolted to the upper lead lug 111 and lower lead lug 121 on the corresponding pulse coil module 10. This bolted connection enables quick connection of the module to the power supply, facilitating the integration of the pulse coil module 10 with bus 20. Simultaneously, the bolted connection offers high stability, avoiding current fluctuations caused by loose connections and improving soldering consistency.

[0034] In one possible implementation, the mounting hole 140 is either a threaded hole or a round hole. The threaded hole can be an M6 or M8 threaded hole.

[0035] In one possible implementation, the arc coil comprises a chromium-zirconium-copper coil. This gives the arc coil high conductivity and high-temperature resistance, which is beneficial for improving pulse current response speed and extending service life.

[0036] In one possible implementation, such as Figure 4 As shown, the pulse coil module 10 has a circular hole 150, and the positioning tube 30 is inserted into the circular hole 150. The positioning tube 30 is fitted with the peripheral wall of the circular hole 150 with a gap 130. In this way, the tolerance between the outer diameter of the positioning tube 30 and the inner diameter of the circular hole 150 is small, allowing for small displacement adjustments, which is beneficial to the assembly of the positioning tube 30.

[0037] In one possible implementation, the number of pulse coil modules 10 is 2-10. This allows for scalability and reduction of the number of pulse coil modules 10, providing high flexibility and balancing efficiency and cost.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0039] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A modular magnetic pulse welding coil structure, characterized by, The utility model relates to a kind of pulse coil module and welding device, including: Multiple pulse coil modules (10) are sequentially connected to form an electric series structure; Busbars (20) provide synchronous power supply for multiple pulse coil modules (10); Multiple positioning tubes (30) are respectively inserted into multiple pulse coil modules (10) for positioning metal workpieces (50) to be welded.

2. The modular magnetic pulse welding coil structure of claim 1, wherein, The pulse coil module (10) includes an upper half module (110) and a lower half module (120), the upper half module (110) and the lower half module (120) have a gap (130) therebetween, and the upper half module (110) and the lower half module (120) each have an arc-shaped coil embedded therein. The arc-shaped coils in the upper half modules (110) are connected in series two by two, and the arc-shaped coils in the lower half modules (120) are connected in series two by two. A conductor block (40) is connected between one end of the upper half module (110) and the lower half module (120) away from the busbar (20).

3. The modular magnetic pulse welding coil structure of claim 2, wherein, The gap (130) is provided with an insulating adhesive layer.

4. The modular magnetic pulse welding coil structure of claim 2, wherein, Both ends of the upper half module (110) are provided with upper lead-out nose (111), and two adjacent upper half modules (110) are connected by upper lead-out nose (111). Both ends of the lower half module (120) are provided with lower lead-out nose (121), and two adjacent lower half modules (120) are connected by lower lead-out nose (121).

5. The modular magnetic pulse welding coil structure of claim 4, wherein, The upper lead-out nose (111) and the lower lead-out nose (121) are each provided with a mounting hole (140) for bolt connection of the upper lead-out nose (111) on two adjacent upper half modules (110) and bolt connection of the lower lead-out nose (121) on two adjacent lower half modules (120).

6. The modular magnetic pulse welding coil structure of claim 5, wherein, The conductor block (40) is connected to the corresponding upper lead-out nose (111) and lower lead-out nose (121) by bolts. And / or, the busbar (20) is provided with a positive terminal (210) and a negative terminal (220), which are respectively connected to the upper lead-out nose (111) and the lower lead-out nose (121) on the corresponding pulse coil module (10) by bolts.

7. The modular magnetic pulse welding coil structure of claim 5, wherein, The mounting hole (140) is a threaded hole or a round hole.

8. The modular magnetic pulse welding coil structure according to any one of claims 2-7, characterized in that, The arc-shaped coil includes a chromium-zirconium-copper coil.

9. The modular magnetic pulse welding coil structure according to any one of claims 1-7, characterized in that, The pulse coil module (10) has a circular hole (150), and the positioning tube (30) is inserted into the circular hole (150). The positioning tube (30) cooperates with the gap (130) of the circular hole (150).

10. The modular magnetic pulse welding coil structure of any one of claims 1-7, wherein, The number of pulse coil modules (10) is 2-10.

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