Electromagnetic pulse welding device and method with loop pulse current synergistic effect

Abstract

The electromagnetic pulse welding device comprises a welding assembly, the welding assembly comprises a workbench, an electromagnetic pulse welding device body is installed at the top of the workbench, a coil is arranged at the top of the electromagnetic pulse welding device body, and a flying plate is arranged at the top of the coil; two gaskets are arranged at the top of the flying plate, a substrate is arranged on one sides of the gaskets, a negative electrode is connected to one side of the coil, a positive electrode is arranged on one side of the negative electrode, and a polishing assembly used for polishing workpieces is arranged on one side of the workbench. By arranging the welding assembly, the loop pulse current can be loaded to the flying plate to improve the current density of the flying plate, so that the Lorentz force is increased, the utilization rate of electromagnetic energy is greatly improved, and the problem that in the prior art, the utilization rate of the electromagnetic energy is extremely low, and consequently a large amount of energy is wasted is solved; and the situation that the development and application of the dissimilar alloy electromagnetic pulse welding technology are restricted by much energy waste is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic pulse welding, and in particular, to an electromagnetic pulse welding device and method with the synergistic effect of loop pulse current. Background Art

[0002] Electromagnetic pulse welding is a modern welding method achieved by electromagnetic induction and thermal effect. Its basic principle is to generate an alternating magnetic field through an AC power supply. This magnetic field penetrates the welding material and generates current in the material, thereby generating Joule heat to locally heat the material to the melting point, and finally achieving welding. Electromagnetic pulse welding is commonly used for welding dissimilar metal composite components. Dissimilar metal composite components are one of the most widely used structures at present and are commonly used in fields such as automobiles, aerospace, and instrumentation. However, there are differences in the physical and chemical properties of dissimilar metals. When welding two metals, defects such as stress concentration, pores, and cracks will occur, which will affect the strength and service life of the welded joint. Therefore, it is necessary to use electromagnetic pulse welding to achieve the welding of dissimilar metals.

[0003] In the existing electromagnetic pulse welding process, the metal material induces eddy currents under the action of the magnetic field generated by the coil, thereby forming Lorentz force. Since the induced eddy currents are often small, the electromagnetic energy utilization rate in electromagnetic pulse welding is extremely low, wasting a large amount of energy, which seriously restricts the development and application of the electromagnetic pulse welding technology for dissimilar alloys. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose an electromagnetic pulse welding device with the synergistic effect of loop pulse current.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An electromagnetic pulse welding device with the synergistic effect of loop pulse current, including a welding assembly. The welding assembly includes a workbench. On the top of the workbench, a main body of an electromagnetic pulse welder is installed. On the top of the main body of the electromagnetic pulse welder, a coil is provided. On the top of the coil, a flyer plate is provided. On the top of the flyer plate, two groups of gaskets are provided. On one side of the gaskets, a substrate is provided. One side of the coil is connected to a negative electrode, and on one side of the negative electrode, a positive electrode is provided. On one side of the workbench, a polishing assembly for polishing the workpiece is provided.

[0007] As a further aspect of the present invention: The polishing assembly includes an electric push rod, which is fixed to the outer wall of the top of the workbench by bolts. The top of the electric push rod is equipped with a polishing table. One side of the polishing table is provided with an adjustment and positioning assembly for adjusting and fixing the position of the workpiece. The outer wall of the top of the workbench is fixedly provided with a mounting frame by bolts. One side outer wall of the mounting frame is fixedly installed with an electric telescopic rod. The telescopic end on one side of the electric telescopic rod can slide through the mounting frame. A fixed block is installed at the end of the electric telescopic rod. The outer wall of the top of the fixed block is fixedly installed with an electric lifting rod. The telescopic end at the bottom of the electric lifting rod can slide through the fixed block. A driving motor is installed at the bottom end of the electric lifting rod. The output end at the bottom of the driving motor is installed with a grinding head.

[0008] As a further aspect of the present invention: The adjustment and positioning assembly includes fixing plates. There are two groups of fixing plates, which are symmetrically installed on the outer wall of the top of the polishing table respectively. One side outer wall of the fixing plate is fixedly installed with a hydraulic telescopic rod. The telescopic end on one side of the hydraulic telescopic rod can slide through the fixing plate. A connecting plate is installed at the end of the hydraulic telescopic rod. One side of the connecting plate is installed with a spring. The end of the spring is installed with a clamping frame. The connecting plate is provided with two groups of guiding holes. Through the guiding holes, guiding rods are slidably installed. The ends of the guiding rods are fixed to the clamping frame. The diameter of the tail end of the guiding rod is larger than the diameter of the guiding hole.

[0009] As a further aspect of the present invention: The polishing table is provided with two groups of parallel installation grooves, and suction cups are installed through the installation grooves. Two groups of vacuum pumps are fixedly provided on the outer wall of the bottom of the polishing table, and the two groups of vacuum pumps are respectively connected to a corresponding group of suction cups.

[0010] As a further aspect of the present invention: The outer wall of the bottom of the workbench is fixedly installed with support legs. There are multiple groups of support legs arranged in sequence. The bottom ends of the support legs are installed with foot pads, and several groups of annular patterns are provided at the bottom of the foot pads.

[0011] As a further aspect of the present invention: The outer wall of the top of the workbench is provided with a cleaning pool. A rotating motor is installed on the outer wall of the cleaning pool. There are two groups of rotating motors, which are symmetrically installed on the two outer walls of the cleaning pool respectively. The output end on one side of the rotating motor is connected with a rotating shaft. One end of the rotating shaft can be rotatably connected inside the cleaning pool. One end of the rotating shaft is installed with a paddle. Two groups of ultrasonic vibration heads are arranged inside the bottom of the cleaning pool in parallel. The cleaning pool is connected with a drain port at one side, and a sealing plug is provided at the end of the drain port.

[0012] As a further aspect of the present invention: A support frame is installed on the outer wall of the top of the workbench. A draining rack is installed on one side outer wall of the support frame. The draining rack is provided with several groups of draining holes arranged in sequence. A hot air blower is installed on one side of the support frame. An air inlet is provided at the top of the hot air blower, and an air outlet is connected at the bottom of the hot air blower.

[0013] As a further solution of the present invention: a fixed bracket is installed on one side of the workbench, and a control panel is installed through the fixed bracket. The control panel is evenly pasted with a protective film.

[0014] As a further solution of the present invention: a fixing frame is provided on the outer wall of the top of the workbench. A speed regulating motor is installed on one side of the fixing frame. The output end of one side of the speed regulating motor is connected to a transmission shaft. One end of the transmission shaft is rotatably arranged through the fixing frame. A roller is installed at the end of the transmission shaft. An opening is provided on one side of the roller, and a number of groups of through holes are arranged in sequence on the roller.

[0015] As a further solution of the present invention: a mounting seat is provided on the outer wall of the top of the workbench. A connecting frame is rotatably installed through the mounting seat, and a protective cover is installed on one side of the connecting frame.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. By setting the welding assembly, a loop pulse current can be loaded onto the flyer plate to increase the current density of the flyer plate, thereby increasing the Lorentz force, greatly improving the utilization rate of electromagnetic energy, solving the problem of extremely low utilization rate of electromagnetic energy in the prior art, which leads to a large amount of energy waste, and avoiding that too much energy waste restricts the development and application of the electromagnetic pulse welding technology for dissimilar alloys.

[0018] 2. By setting the polishing assembly, the workpiece can be polished, so as to process the weld seam after welding is completed, remove residual welding slag and other impurities, and at the same time, the uneven places can be processed to avoid the attachment of impurities affecting subsequent processing.

[0019] 3. By setting the adjustment and positioning assembly, the workpiece can be positioned, so as to avoid the displacement of the workpiece during the polishing process, ensure the normal progress of the polishing process, and at the same time, buffer can be carried out when clamping the workpiece. The spring deforms instantaneously when contacting to buffer, avoiding the large force at the moment of contact causing the workpiece to deform or be damaged. The moving track of the clamping frame can be restricted by the sliding of the guide rod in the guide hole, so as to avoid the offset of the clamping frame during movement. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the main view angle of an electromagnetic pulse welding device with the synergistic action of loop pulse current proposed by the present invention;

[0021] Figure 2 It is a schematic structural diagram of the support leg of an electromagnetic pulse welding device with the synergistic action of loop pulse current proposed by the present invention;

[0022] Figure 3 It is a schematic structural diagram of the cleaning part of an electromagnetic pulse welding device with the synergistic action of loop pulse current proposed by the present invention;

[0023] Figure 4 Schematic diagram of the polishing part of an electromagnetic pulse welding device with the synergistic effect of loop pulse current proposed by the present invention;

[0024] Figure 5 Schematic diagram of the water drainage part of an electromagnetic pulse welding device with the synergistic effect of loop pulse current proposed by the present invention;

[0025] Figure 6 Schematic diagram of the loop pulse part of an electromagnetic pulse welding device with the synergistic effect of loop pulse current proposed by the present invention;

[0026] Figure 7 Schematic diagram of the fixing part of an electromagnetic pulse welding device with the synergistic effect of loop pulse current proposed by the present invention;

[0027] Figure 8 Schematic diagram of the clamping part of an electromagnetic pulse welding device with the synergistic effect of loop pulse current proposed by the present invention;

[0028] Figure 9 Schematic diagram of the current flow direction of an electromagnetic pulse welding device with the synergistic effect of loop pulse current proposed by the present invention.

[0029] In the figure: 1, workbench; 2, rotating motor; 3, control panel; 4, support leg; 5, foot pad; 6, drain outlet; 7, cleaning pool; 8, fixing frame; 9, roller; 10, electric telescopic rod; 11, support frame; 12, mounting frame; 13, electric lifting rod; 14, fixing block; 15, driving motor; 16, grinding head; 17, protective cover; 18, mounting seat; 19, connecting frame; 20, water drainage frame; 21, hot air blower; 22, speed regulating motor; 23, electric push rod; 24, fixing plate; 25, hydraulic telescopic rod; 26, connecting plate; 27, clamping frame; 28, polishing table; 29, guide rod; 30, suction cup; 31, substrate; 32, gasket; 33, negative electrode; 34, positive electrode; 35, flying plate; 36, main body of electromagnetic pulse welder; 37, rotating shaft; 38, paddle; 39, ultrasonic vibration head; 40, transmission shaft; 41, coil; 42, spring; 43, vacuum pump. Detailed implementation manners

[0030] The technical solutions of the present invention will be further described in detail below in conjunction with the specific implementation manners.

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0032] Example 1

[0033] An electromagnetic pulse welding device with the synergistic effect of loop pulse current, as Figures 1-8 shown, includes a welding assembly. The welding assembly includes a workbench 1. On the top of the workbench 1, a main body 36 of an electromagnetic pulse welder is installed. On the top of the main body 36 of the electromagnetic pulse welder, a coil 41 is provided. On the top of the coil 41, a flyer plate 35 is provided. On the top of the flyer plate 35, two groups of gaskets 32 are provided. On one side of the gasket 32, a substrate 31 is provided. On one side of the coil 41, a negative electrode 33 is connected. On one side of the negative electrode 33, a positive electrode 34 is provided. On one side of the workbench 1, a polishing assembly for polishing the workpiece is provided;

[0034] During use, a capacitor is provided inside the main body 36 of the electromagnetic pulse welder. The positive electrode 34 and the negative electrode 33 are connected to the capacitor to provide pulse current. The coil 41 is used to provide a strong magnetic field environment. The coil 41 is in series with the flyer plate 35. The flyer plate 35 deforms under the action of the Lorentz force and collides with the substrate 31. The gasket 32 is between the flyer plate 35 and the substrate 31 and is used to provide the gap required for the deformation of the flyer plate 35. The materials of the positive electrode 34, the negative electrode 33, and the coil 41 are chromium zirconium copper. The materials of the flyer plate 35 and the substrate 31 are selected according to the metals to be welded. The material of the gasket 32 is epoxy resin. The flyer plate 35 is connected and fixed to the positive electrode 34, the negative electrode 33, and the coil 41 through bolts. The pulse current generated by the main body 36 of the electromagnetic pulse welder flows into the flyer plate 35 from the positive electrode 34, then into the coil 41, and finally flows out from the negative electrode 33. The current on the flyer plate 35 includes the discharge loop pulse current and the eddy current induced by the flyer plate 35, thereby greatly increasing the current density on the flyer plate 35 and forming a greater Lorentz force and impact speed, improving the utilization rate of electromagnetic energy. The welding process is as follows. First, fix the flyer plate 35, the substrate 31, the gasket 32, the coil 41, the positive electrode 34, and the negative electrode 33. Place the dissimilar alloy on the flyer plate 35. Start the main body 36 of the electromagnetic pulse welder to charge the high-voltage capacitor. After the charging is completed, the discharge switch is turned on, and a pulse current is applied to the coil 41. The loop pulse current flows into the flyer plate 35 through the positive electrode 34 to increase the current density of the flyer plate 35. The pulse current flows through the coil 41 to control the flyer plate 35 to start deforming. The flyer plate 35 collides with the substrate 31 through deformation, thereby completing the electromagnetic pulse welding of the dissimilar alloy. By loading the loop pulse current onto the flyer plate 35, the current density of the flyer plate 35 is increased, thereby increasing the Lorentz force and greatly improving the utilization rate of electromagnetic energy, realizing the metallurgical bonding of dissimilar metals. The current flow direction can be referred to Figure 9 .

[0035] The polishing assembly includes an electric push rod 23, which is fixed to the outer wall of the top of the workbench 1 by bolts. A polishing table 28 is installed at the top end of the electric push rod 23. An adjusting and positioning assembly for adjusting and fixing the position of the workpiece is arranged on one side of the polishing table 28. An installation frame 12 is fixedly arranged on the outer wall of the top of the workbench 1 by bolts. An electric telescopic rod 10 is fixedly installed on the outer wall of one side of the installation frame 12 by bolts. The telescopic end on one side of the electric telescopic rod 10 can slide through the installation frame 12. A fixed block 14 is installed at the end of the electric telescopic rod 10. An electric lifting rod 13 is fixedly installed on the outer wall of the top of the fixed block 14 by bolts. The telescopic end at the bottom of the electric lifting rod 13 can slide through the fixed block 14. A driving motor 15 is installed at the bottom end of the electric lifting rod 13. A grinding head 16 is installed at the output end at the bottom of the driving motor 15;

[0036] During use, the welded workpiece can be placed on the polishing table 28. The grinding head 16 can be controlled to descend through the electric lifting rod 13. The position of the grinding head 16 can be adjusted through the electric telescopic rod 10. By adjusting the height and position of the grinding head 16, the contact between the grinding head 16 and the workpiece can be controlled. The rotation of the grinding head 16 can be controlled through the driving motor 15. The workpiece can be polished by the rotation of the grinding head 16 in contact with the workpiece. Through grinding and polishing, the impurities and unevenness attached to the workpiece can be effectively removed. The rotating grinding head 16 can be controlled to contact the workpiece and move through the electric telescopic rod 10, which is convenient for polishing. Different types of grinding heads 16 can be replaced according to the size of the workpiece and the polishing requirements;

[0037] The adjusting and positioning assembly includes fixing plates 24. There are two groups of the fixing plates 24, which are symmetrically installed on the outer wall of the top of the polishing table 28 respectively. A hydraulic telescopic rod 25 is fixedly installed on the outer wall of one side of the fixing plate 24 by bolts. The telescopic end on one side of the hydraulic telescopic rod 25 can slide through the fixing plate 24. A connecting plate 26 is installed at the end of the hydraulic telescopic rod 25. A spring 42 is installed on one side of the connecting plate 26. A clamping bracket 27 is installed at the end of the spring 42. Two guiding holes are formed in the connecting plate 26. A guiding rod 29 is slidably installed through the guiding holes. The end of the guiding rod 29 is fixed to the clamping bracket 27. The diameter of the tail end of the guiding rod 29 is larger than the diameter of the guiding holes;

[0038] During use, after the workpiece is placed on the polishing table 28, the two clamping brackets 27 can be controlled to move towards each other through the two hydraulic telescopic rods 25 to clamp and fix the workpiece, so as to prevent the workpiece from displacing during the polishing process. At the same time, by adjusting the positions of the two clamping brackets 27, the position of the workpiece can be moved, which is convenient for grinding and polishing the workpiece. When clamping and fixing the workpiece, the spring 42 deforms instantaneously during contact for buffering, so as to avoid the workpiece being deformed or damaged due to the large force at the moment of contact. The moving track of the clamping bracket 27 can be restricted by the guiding rod 29 sliding in the guiding holes, thus preventing the clamping bracket 27 from shifting during movement;

[0039] To prevent the workpiece from shifting, as Figure 3 , 7 , as shown in Figure 8, the polishing table 28 is provided with two groups of parallel mounting grooves, and suction cups 30 are installed through the mounting grooves. Two vacuum pumps 43 are fixedly arranged on the outer wall of the bottom of the polishing table 28 through bolts. The two vacuum pumps 43 are respectively connected to a corresponding group of suction cups 30;

[0040] During use, after the position of the workpiece is adjusted by the clamping frame 27 and the workpiece is clamped and fixed, the workpiece is in contact with the suction cup 30. The air in the suction cup 30 can be discharged through the vacuum pump 43, so that the suction cup 30 sucks the workpiece to limit and fix it, and further fix it to avoid shifting during polishing. When it is necessary to adjust the position of the workpiece or remove the workpiece, the vacuum pump 43 injects gas into the suction cup 30 to release the fixation of the workpiece, so as to facilitate adjusting the position of the workpiece or removing the workpiece as needed;

[0041] To maintain stability, as Figure 2 shown, the outer wall of the bottom of the workbench 1 is fixedly installed with support legs 4 through bolts. A plurality of groups of support legs 4 are arranged in sequence. The bottom ends of the support legs 4 are installed with foot pads 5, and a plurality of groups of annular patterns are arranged on the bottom of the foot pads 5;

[0042] During use, the material of the foot pad 5 is rubber. The device can be supported by the cooperation of the support legs 4 and the foot pads 5 to maintain stability during work. The rubber foot pads 5 cooperate with the annular patterns on the bottom to increase anti-slip performance and effectively increase the grip, so as to avoid unnecessary sliding displacement during use;

[0043] To clean debris, as Figure 1 , 3 , as shown in Figure 5, the outer wall of the top of the workbench 1 is fixedly provided with a cleaning pool 7 through bolts. Two rotating motors 2 are fixedly installed on the outer wall of the cleaning pool 7 through bolts. The two rotating motors 2 are symmetrically installed on both sides of the outer wall of the cleaning pool 7. The output end of one side of the rotating motor 2 is connected with a rotating shaft 37. One end of the rotating shaft 37 is rotatably connected to the inside of the cleaning pool 7. One end of the rotating shaft 37 is installed with a paddle 38. Two ultrasonic vibrating heads 39 are arranged inside the bottom of the cleaning pool 7. The two ultrasonic vibrating heads 39 are arranged in parallel. One side of the cleaning pool 7 is connected with a drain port 6, and a sealing plug is arranged at the end of the drain port 6;

[0044] During use, water can be added to the cleaning pool 7. After the water addition is completed, the polished workpiece can be placed into the cleaning pool 7. The rotation motor 2 can be used to control the rotation of the rotating shaft 37 and the paddle 38. By rotating the paddle 38, the water flow in the cleaning pool 7 can be stirred. Through the stirring, the water flow is made to flow. Through the flow of the water, the workpiece can be rinsed, thereby removing the attached impurities and debris. By starting the two groups of ultrasonic vibration heads 39, the water flow can be driven to vibrate. The vibration of the water flow in cooperation with the flow can increase the cleaning efficiency. At the same time, the gaps can be comprehensively cleaned to avoid the situation where there are debris and impurities in the gaps that cannot be cleaned, preventing it from affecting subsequent processing;

[0045] To remove water stains, as Figure 5 shown, a support frame 11 is fixedly installed on the outer wall of the top of the workbench 1 through bolts. A water drainage rack 20 is fixedly installed on the outer wall of one side of the support frame 11 through bolts. The water drainage rack 20 is provided with several groups of water drainage holes arranged in sequence. A hot air blower 21 is installed on one side of the support frame 11. An air inlet is provided at the top of the hot air blower 21, and an air outlet is connected to the bottom of the hot air blower 21;

[0046] During use, the position of the air outlet of the hot air blower 21 is adapted to the water drainage rack 20. The cleaned workpiece can be placed on the water drainage rack 20. Through the water drainage holes of the water drainage rack 20, the workpiece can be drained of water. By draining the water to remove water stains, the workpiece can be kept dry. When the hot air blower 21 is started, air is inhaled from the air inlet, heated after inhalation, and the hot air is blown out through the air outlet. By blowing the hot air on the workpiece, it can be dried, effectively increasing its drying efficiency. A container can be placed at the bottom of the water drainage rack 20, so that the wastewater left by the water drainage holes can be collected, reducing the cleaning difficulty and facilitating recycling at the same time;

[0047] For easy control, as Figure 1 shown, a fixed bracket is installed on one side of the workbench 1. A control panel 3 is installed through the fixed bracket. The control panel 3 is evenly pasted with a protective film;

[0048] During use, the protective film can prevent the control panel 3 from being scratched during use. The control panel 3 is connected to each component through wires. Through the control panel 3, the start-stop and power of each component can be controlled and adjusted, thereby effectively increasing the convenience of control and greatly reducing the control difficulty;

[0049] To polish and remove impurities from the whole workpiece, as Figure 2 、 3 、4, and 5 shown, a fixed frame 8 is fixedly installed on the outer wall of the top of the workbench 1 through bolts. A speed control motor 22 is installed on one side of the fixed frame 8. The output end on one side of the speed control motor 22 is connected to a transmission shaft 40. One end of the transmission shaft 40 can rotatably penetrate through the fixed frame 8. A roller 9 is installed at the end of the transmission shaft 40. An opening is provided on one side of the roller 9. The roller 9 is provided with several groups of openings arranged in sequence;

[0050] During use, abrasive can be added into the roller 9. After the addition is completed, the workpiece is placed into the roller 9 through the opening of the roller 9. The rotation of the transmission shaft 40 can be controlled by the speed-regulating motor 22, so as to synchronously control the rotation of the roller 9. Through rotation, the workpiece and the abrasive are fully contacted to generate friction, so as to polish and remove impurities from the whole workpiece, effectively remove stubborn stains attached, avoid the appearance of polishing dead corners, and facilitate subsequent processing after removing impurities. When the roller 9 rotates, the cleaned debris and waste can be discharged through a number of small openings provided thereon.

[0051] Embodiment 2

[0052] For improving safety, referring to Figure 1 、 2 、4, an electromagnetic pulse welding device with the synergistic action of loop pulse current. The following improvements are made in this embodiment compared with Embodiment 1. The outer wall of the top of the workbench 1 is fixedly provided with a mounting seat 18 through bolts. A connecting frame 19 is rotatably mounted through the mounting seat 18, and a protective cover 17 is mounted on one side of the connecting frame 19;

[0053] During use, the size and position of the protective cover 17 are adapted to the electromagnetic pulse welder main body 36. A grip is provided on one side of the protective cover 17. A certain damping is provided between the connecting frame 19 and the mounting seat 18 to avoid unnecessary rotation. When placing the workpiece for welding, hold the grip and rotate the protective cover 17 to open it. After opening, the workpiece can be placed. After completion, rotate to close the protective cover 17, so as to cover the welding part, avoid the splashing of waste, avoid the waste splashing and injuring the staff, and effectively improve safety.

[0054] As mentioned above, only the specific preferred embodiments of the present invention are described. For the parts that do not involve creative labor such as circuit control and signal control transmission, reference can be made to the prior art. However, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitution or change, and should be covered within the protection scope of the present invention.

Claims

1. An electromagnetic pulse welding device with the synergistic effect of loop pulse current, comprising a welding assembly, characterized in that, The welding assembly includes a workbench (1), on the top of the workbench (1) is installed a main body (36) of an electromagnetic pulse welder, on the top of the main body (36) of the electromagnetic pulse welder is provided a coil (41), on the top of the coil (41) is provided a flying plate (35), on the top of the flying plate (35) are provided two groups of gaskets (32), on one side of the gasket (32) is provided a substrate (31), on one side of the coil (41) is connected a negative electrode (33), on one side of the negative electrode (33) is provided a positive electrode (34), and on one side of the workbench (1) is provided a polishing assembly for polishing the workpiece.

2. The electromagnetic pulse welding device with the synergistic effect of loop pulse current according to claim 1, characterized in that, The polishing assembly includes an electric push rod (23), the electric push rod (23) is fixed to the outer wall of the top of the workbench (1) by bolts, at the top of the electric push rod (23) is installed a polishing table (28), on one side of the polishing table (28) is provided an adjustment and positioning assembly for adjusting and fixing the position of the workpiece, on the outer wall of the top of the workbench (1) is fixedly provided an installation frame (12) by bolts, on one side outer wall of the installation frame (12) is fixedly installed an electric telescopic rod (10) by bolts, the telescopic end on one side of the electric telescopic rod (10) is slidably penetrated through the installation frame (12), at the end of the electric telescopic rod (10) is installed a fixing block (14), on the outer wall of the top of the fixing block (14) is fixedly installed an electric lifting rod (13) by bolts, the telescopic end at the bottom of the electric lifting rod (13) is slidably penetrated through the fixing block (14), at the bottom end of the electric lifting rod (13) is installed a driving motor (15), and at the output end at the bottom of the driving motor (15) is installed a grinding head (16).

3. An electromagnetic pulse welding device with the synergistic effect of loop pulse current according to claim 2, characterized in that, The adjustment and positioning assembly includes fixing plates (24), there are two groups of the fixing plates (24), which are symmetrically installed on the outer wall of the top of the polishing table (28) respectively, on one side outer wall of the fixing plate (24) is fixedly installed a hydraulic telescopic rod (25) by bolts, the telescopic end on one side of the hydraulic telescopic rod (25) is slidably penetrated through the fixing plate (24), at the end of the hydraulic telescopic rod (25) is installed a connecting plate (26), on one side of the connecting plate (26) is installed a spring (42), at the end of the spring (42) is installed a clamping frame (27), the connecting plate (26) is provided with two groups of guiding holes, and through the guiding holes is slidably installed a guiding rod (29), the end of the guiding rod (29) is fixed to the clamping frame (27), and the diameter of the tail end of the guiding rod (29) is larger than the diameter of the guiding holes.

4. An electromagnetic pulse welding device with the synergistic effect of loop pulse current according to claim 3, characterized in that, The polishing table (28) is provided with two groups of parallel installation grooves, and through the installation grooves are installed suction cups (30), on the outer wall of the bottom of the polishing table (28) is fixedly provided two groups of vacuum pumps (43) by bolts, and the two groups of vacuum pumps (43) are respectively connected with a corresponding group of suction cups (30).

5. An electromagnetic pulse welding device with the synergistic effect of loop pulse current according to claim 1, characterized in that, On the outer wall of the bottom of the workbench (1) is fixedly installed support legs (4) by bolts, there are multiple groups of the support legs (4) arranged in sequence, at the bottom end of the support legs (4) is installed a foot pad (5), and on the bottom of the foot pad (5) are provided several groups of annular patterns.

6. An electromagnetic pulse welding device with the synergistic effect of loop pulse current according to claim 1, characterized in that, On the outer wall of the top of the workbench (1), a cleaning pool (7) is provided. A rotating motor (2) is installed on the outer wall of the cleaning pool (7). There are two sets of rotating motors (2), which are symmetrically installed on the outer walls on both sides of the cleaning pool (7) respectively. One output end of the rotating motor (2) is connected to a rotating shaft (37). One end of the rotating shaft (37) is rotatably connected to the inside of the cleaning pool (7). A paddle (38) is installed at one end of the rotating shaft (37). Two ultrasonic vibration heads (39) are arranged inside the bottom of the cleaning pool (7). The two ultrasonic vibration heads (39) are arranged in parallel. One side of the cleaning pool (7) is connected to a drain port (6), and a sealing plug is provided at the end of the drain port (6).

7. An electromagnetic pulse welding device with the synergistic effect of loop pulse current according to claim 1, characterized in that, A support frame (11) is installed on the outer wall of the top of the workbench (1). A draining rack (20) is installed on the outer wall of one side of the support frame (11). A number of draining holes are arranged in sequence on the draining rack (20). A hot air blower (21) is installed on one side of the support frame (11). An air inlet is provided at the top of the hot air blower (21), and an air outlet is connected to the bottom of the hot air blower (21).

8. An electromagnetic pulse welding device with the synergistic effect of loop pulse current according to claim 1, characterized in that, A fixed bracket is installed on one side of the workbench (1), and a control panel (3) is installed through the fixed bracket. A protective film is evenly pasted on the control panel (3).

9. An electromagnetic pulse welding device with the synergistic effect of loop pulse current according to claim 1, characterized in that, A fixed frame (8) is provided on the outer wall of the top of the workbench (1). A speed regulating motor (22) is installed on one side of the fixed frame (8). One output end of the speed regulating motor (22) is connected to a transmission shaft (40). One end of the transmission shaft (40) is rotatably arranged through the fixed frame (8). A roller (9) is installed at the end of the transmission shaft (40). An opening is provided on one side of the roller (9). A number of through holes are arranged in sequence on the roller (9). An installation seat (18) is provided on the outer wall of the top of the workbench (1), and a connecting frame (19) is rotatably installed through the installation seat (18). A protective cover (17) is installed on one side of the connecting frame (19).

10. An electromagnetic pulse welding method with the synergistic action of loop pulse current, characterized in that, The steps are as follows: A capacitor is provided inside the main body of the electromagnetic pulse welder. The positive electrode and the negative electrode are connected to the capacitor to provide pulsed current. The coil is used to provide a strong magnetic field environment. The coil is connected in series with the flyer plate. The flyer plate deforms under the action of the Lorentz force and collides with the substrate. A gasket is placed between the flyer plate and the substrate to provide the gap required for the deformation of the flyer plate. The flyer plate is connected and fixed to the positive electrode, the negative electrode, and the coil through bolts. The pulsed current generated by the main body of the electromagnetic pulse welder flows into the flyer plate from the positive electrode, then into the coil, and finally flows out from the negative electrode. The current on the flyer plate includes the pulsed current of the discharge circuit and the eddy current induced by the flyer plate, thereby greatly increasing the current density on the flyer plate and forming a greater Lorentz force and impact speed, improving the utilization rate of electromagnetic energy. The welding process is as follows: First, fix the flyer plate, substrate, gasket, coil, positive electrode, and negative electrode. Place the dissimilar alloy on the flyer plate. Start the main body of the electromagnetic pulse welder and charge the high-voltage capacitor. After the charging is completed, the discharge switch is turned on, and a pulsed current is applied to the coil. The pulsed current of the circuit flows into the flyer plate through the positive electrode to increase the current density of the flyer plate. The pulsed current flows through the coil to control the flyer plate to start deforming. The flyer plate collides with the substrate through deformation, thereby completing the electromagnetic pulse welding of the dissimilar alloy. By applying the pulsed current of the circuit to the flyer plate to increase the current density of the flyer plate, the Lorentz force is increased, and the utilization rate of electromagnetic energy is greatly improved, realizing the metallurgical bonding of dissimilar metals.

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