A flat copper wire straightening device with stress reduction function

Abstract

The application discloses a flat copper wire straightening device with stress reduction function, which comprises a workbench, three groups of straightening assemblies are installed on the top of the workbench, a stress reduction assembly is rotatably installed on the top of the workbench, and a driving assembly is installed at the bottom of the workbench. Through the flexible straightening structure with the non-Newtonian fluid cavity, the traditional rigid and ordinary rubber roller straightening mode is overturned, the flexible self-adaptive straightening is realized by relying on the characteristics of the elastic rubber cylinder and the non-Newtonian fluid, the straightening stiffness is provided by the fluid instant thickening when the wire is pressed, the shaping precision is ensured, the fluid restores flexibility after pressure relief, the local concentrated stress generated in the straightening process can be effectively released, the residual stress accumulation is reduced from the source, and in addition, the up-down double-roller reverse alternating magnetic current stress reduction structure is adopted, and the air cooling assembly is matched, so that the integrated operation of straightening and stress reduction is realized, the uniform eddy current is generated in the whole flat copper wire, the lattice distortion is relaxed by the non-contact electromagnetic alternating micro force, and the straightening residual stress is eliminated.

Description

Technical Field

[0001] This invention relates to the field of flat copper wire straightening technology, specifically to a flat copper wire straightening device with stress reduction function. Background Technology

[0002] As a core conductive component in motors, transformers, and high and low voltage electrical equipment, flat copper wire's straightness, flatness, and structural stability directly determine the assembly accuracy and operational safety of these devices. During rolling, drawing, winding, and transportation, flat copper wire is highly susceptible to deformation defects such as longitudinal bending, transverse warping, and surface unevenness, while also generating a large amount of uneven residual stress within the wire.

[0003] Currently, most conventional flat copper wire straightening devices on the market employ a single upper and lower roller pressing or left and right roller pressing structure, which can only achieve physical flattening of the wire's shape, resulting in a relatively limited function. During the straightening process, the rigid roller pressing further exacerbates the internal stress accumulation of the flat copper wire, failing to release or eliminate the residual stress generated during the forming process. After processing, the flat copper wire is highly susceptible to problems such as springback warping, dimensional deviation, and localized deformation during subsequent cutting, bending, and assembly processes, leading to a decrease in product qualification rate and failing to meet the processing standards for high-precision motor windings and precision electrical components. Summary of the Invention

[0004] The purpose of this invention is to provide a flat copper wire straightening device with stress reduction function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flat copper wire straightening device with stress reduction function, comprising a worktable, three sets of straightening components mounted on the top of the worktable, a stress reduction component rotatably mounted on the top of the worktable, and a drive component mounted on the bottom of the worktable.

[0006] Preferably, each of the three sets of straightening components includes two rotating plates and two outer frames. Inner rollers are fixedly installed on the top of the two rotating plates. A snap-fit ​​groove is formed on the outer side of each inner roller. A coolant cavity is formed inside each inner roller. An elastic resin tube is fixedly installed on the outer side of each outer frame. A non-Newtonian fluid cavity is provided between the elastic resin tube and the outer frame, and the non-Newtonian fluid cavity is filled with non-Newtonian fluid. Four snap-fit ​​strips are symmetrically fixedly installed on the inner side of each outer frame. The outer frame is sleeved on the outer side of the inner roller, and the snap-fit ​​strips are snapped on the inner side of the snap-fit ​​groove. A transmission gear is fixedly installed on the top of each outer frame, and the outer sides of the transmission gear mesh with each other.

[0007] Preferably, a mounting sleeve is fixedly installed on the top of the workbench, the rotating plate is rotatably installed inside the mounting sleeve, and a rotating rod is rotatably installed on the top of the mounting sleeve, the rotating rod being located between the two rotating plates.

[0008] Preferably, the stress reduction component includes a magnetic flux reduction component and a cooling component. The magnetic flux reduction component includes two fixed cylinders and two rotating rollers, with the two rotating rollers located inside the two fixed cylinders respectively. A connecting plate is fixedly installed at the bottom of each of the two rotating rollers. Multiple insertion strips are fixedly installed on the top of the connecting plate, and outer N-class arc magnets and outer S-class arc magnets are alternately installed on the outer sides of the multiple insertion strips at intervals. Insertion slots are opened inside the outer N-class arc magnets and outer S-class arc magnets, and insertion strips are inserted and installed inside the insertion slots. Threaded grooves are opened on the top of the two fixed cylinders, and threaded caps are threadedly connected inside the threaded grooves.

[0009] Preferably, the cooling component includes an air guide seat, two fixed cylinders are fixedly installed on the top of the workbench, and the air guide seat is sleeved on the outside of the two fixed cylinders. The top of the air guide seat is connected to two jet boxes, the outside of the air guide seat is connected to an air guide frame, one side of the air guide frame is connected to a cold air inlet pipe, and the two jet boxes are respectively installed on the outside of the two fixed cylinders.

[0010] Preferably, the drive assembly includes a drive motor, a second transmission wheel, a third transmission wheel, and multiple first transmission wheels. A fixed base is fixedly installed on the outside of the drive motor, and the fixed base is fixedly installed on the bottom of the worktable. The output end of the drive motor is fixedly connected to the second transmission wheel, and the second transmission wheel, the third transmission wheel, and the multiple first transmission wheels are all rotatably installed on the bottom of the worktable.

[0011] Preferably, the plurality of transmission wheels one are fixedly connected to the bottom of the plurality of rotating plates respectively, the transmission wheel two is fixedly connected to the bottom of one of the rotating plates, the top of the transmission wheel three is fixedly connected to the bottom of one of the connecting plates, wherein the outer sides of two of the transmission wheels one are fitted with transmission belt one, the outer sides of the transmission wheel two and one of the transmission wheels one are fitted with transmission belt two, and the outer sides of the transmission wheel three and one of the transmission wheels one are fitted with transmission belt three.

[0012] Preferably, a transmission gear three is fixedly installed at the bottom of the transmission wheel three, and a transmission gear two is fixedly installed at the bottom of one of the connecting plates, with the outer side of the transmission gear two meshing with the outer side of the transmission gear three.

[0013] Preferably, a protective cover 2 is fixedly installed at the bottom of the workbench, the transmission gear 2 and transmission gear 3 are located inside the protective cover 2, and the top of the transmission gear 1 is equipped with a protective cover 1 through a bearing, and the protective cover 1 covers the outside of the transmission gear 1.

[0014] Preferably, the bottom of the workbench is fixedly equipped with four support legs, which are installed in a rectangular symmetrical arrangement at the four corners of the bottom of the workbench.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a flexible straightening structure with a non-Newtonian fluid cavity, the traditional rigid, ordinary rubber roller straightening mode is overturned. Relying on the characteristics of elastic resin cylinder and non-Newtonian fluid, flexible adaptive straightening is achieved. When the wire is compressed, the fluid thickens instantaneously to provide straightening stiffness and ensure shaping accuracy. After the pressure is released, the fluid returns to flexibility, which can effectively release the local concentrated compressive stress generated during the straightening process and reduce the accumulation of residual stress from the source. At the same time, the built-in cooling liquid cavity of the inner sleeve roller can cool down in real time and avoid the roller body from overheating and aging. The snap-fit ​​disassembly structure facilitates the maintenance and replacement of the roller body. Multiple sets of synchronously rotating straightening rollers can perform multiple passes of uniform shaping on flat copper wire, which completely solves the problems of uneven pressure, easy warping of wire, and poor size adaptability of traditional straightening equipment, and greatly improves the flatness and processing versatility of flat copper wire straightening. In addition, a double-roller reverse alternating magnetic flux stress reduction structure is adopted, combined with an air-cooling cooling component, to achieve integrated straightening and stress reduction. The upper and lower rotating rollers rotate synchronously in opposite directions, so that the N and S pole magnets alternately form a closed alternating magnetic field, which generates uniform eddy currents throughout the flat copper wire. Through non-contact electromagnetic alternating micro-force relaxation of lattice distortion and elimination of residual straightening stress, the wire is prevented from subsequent springback deformation. The matching split air-cooling structure can continuously keep the magnetic field processing area at a constant temperature, effectively avoiding the problem of eddy current heating damaging the insulation layer of the flat copper wire. The whole equipment achieves synchronous linkage of straightening and stress reduction through a drive system, with strong transmission coordination and stable operation. No secondary processing is required, which greatly improves processing efficiency and finished product stability, and is suitable for high-precision processing needs of multi-specification insulated flat copper wires. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the present invention.

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0018] Figure 3 This is a three-dimensional structural diagram of the straightening component of the present invention.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the rotating roller of the present invention.

[0020] Figure 5 This is a cross-sectional view of the rotating roller structure of the present invention.

[0021] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the straightening sleeve of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the stress reduction component of the present invention.

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure of the stress reduction component of the present invention with the threaded cap removed.

[0024] Figure 9 This is a partial three-dimensional structural diagram of the stress reduction component of the present invention.

[0025] In the diagram: 1. Workbench; 2. Elastic resin tube; 3. Mounting sleeve; 4. Rotating rod; 5. Outer frame; 6. Air inlet pipe; 7. Air guide frame; 8. Support leg; 9. Air guide seat; 10. Jet box; 11. Fixed cylinder; 12. Threaded cap; 13. Protective cover one; 14. Transmission wheel one; 15. Transmission belt one; 16. Transmission belt two; 17. Transmission wheel two; 18. Fixed seat; 19. Drive motor; 20. Protective cover two; 21. Rotating plate; 22. Transmission gear two; 23. Transmission gear three; 24. Transmission wheel three; 25. Non-Newtonian fluid cavity; 26. Transmission gear one; 27. Snap-fit ​​strip; 28. Coolant cavity; 29. ​​Snap-fit ​​groove; 30. Inner sleeve roller; 31. Outer N-class arc magnet; 32. Outer S-class arc magnet; 33. Rotating roller; 34. Insertion strip; 35. Connecting plate; 36. Insertion groove; 37. Threaded groove; 38. Transmission belt three. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-9This invention provides a technical solution: a flat copper wire straightening device with stress reduction function, comprising a workbench 1, three straightening components mounted on the top of the workbench 1, each of the three straightening components including two rotating plates 21 and two outer frames 5, inner rollers 30 fixedly mounted on the top of each of the two rotating plates 21, with snap-fit ​​grooves 29 on the outer sides of each inner roller 30, and cooling fluid chambers 28 formed inside each of the two inner rollers 30, and elastic resin tubes 2 fixedly mounted on the outer sides of each of the two outer frames 5, with a non-Newtonian fluid chamber 25 provided between the elastic resin tube 2 and the outer frame 5, and the non-Newtonian fluid... The cavity 25 is filled with a non-Newtonian fluid. Four snap-fit ​​strips 27 are symmetrically fixed to the inner sides of the two outer frames 5. The outer frames 5 are fitted onto the outer side of the inner roller 30, and the snap-fit ​​strips 27 are snap-fitted onto the inner side of the snap-fit ​​groove 29. A transmission gear 26 is fixedly installed on the top of each outer frame 5, and the outer sides of the transmission gear 26 mesh with each other. A mounting sleeve 3 is fixedly installed on the top of the worktable 1. A rotating plate 21 is rotatably installed inside the mounting sleeve 3. A rotating rod 4 is rotatably installed on the top of the mounting sleeve 3, located between the two rotating plates 21. The top of the worktable 1 is rotatably mounted... The device is equipped with a stress reduction assembly, which includes a magnetic flux reduction assembly and a cooling assembly. The magnetic flux reduction assembly includes two fixed cylinders 11 and two rotating rollers 33, with the two rotating rollers 33 located inside the two fixed cylinders 11. A connecting plate 35 is fixedly installed at the bottom of each of the two rotating rollers 33. Multiple insertion strips 34 are fixedly installed at the top of the connecting plate 35. Outer N-class arc magnets 31 and outer S-class arc magnets 32 are alternately installed on the outer sides of the multiple insertion strips 34 at intervals. Insertion slots 36 are formed inside the outer N-class arc magnets 31 and outer S-class arc magnets 32. 34 is installed inside the insertion slot 36. The top of the two fixed cylinders 11 is provided with a threaded groove 37. The threaded groove 37 is connected to a threaded cap 12. The cooling component includes an air guide seat 9. The two fixed cylinders 11 are fixedly installed on the top of the workbench 1, and the air guide seat 9 is sleeved on the outside of the two fixed cylinders 11. The top of the air guide seat 9 is connected to two jet boxes 10. The outside of the air guide seat 9 is connected to an air guide frame 7. One side of the air guide frame 7 is connected to a cold air inlet pipe 6. The two jet boxes 10 are respectively installed on the outside of the two fixed cylinders 11. The bottom of the workbench 1 is equipped with a drive component.

[0028] The working principle of the above technical solution is as follows: The drive component can drive three sets of straightening components and stress relief components to operate. Each set of straightening components is equipped with two symmetrically arranged straightening rollers. The transmission gears 26 fixed at the top of the two outer frames 5 mesh with each other. Under the power linkage, the two sets of straightening rollers are controlled to achieve precise synchronous reverse rotation, forming symmetrical pure rolling extrusion straightening of the flat copper wire passing through the middle. There is no relative sliding friction, which can effectively protect the insulation layer on the surface of the flat copper wire. During the continuous straightening operation, the sealed cooling liquid cavity 28 reserved inside the inner sleeve roller 30 is filled with cooling medium, which quickly removes the heat accumulated by the roller body extruding the wire and friction operation, effectively reducing the working temperature of the roller body, preventing the elastic resin cylinder 2 from aging, deforming and degrading due to high temperature, and ensuring the long-term stable operation of the straightening structure. The elastic resin cylinder 2 and the outer outer frame 5 form a sealed annular non-Newtonian fluid cavity 25. The cavity is completely filled with a shear-thickening non-Newtonian fluid, forming a flexible adaptive straightening structure. When the flat copper wire passes through and is compressed, the elastic resin cylinder 2 deforms under the pressure of the wire, creating an instantaneous shearing effect on the non-Newtonian fluid in the cavity. The fluid instantly thickens and hardens, switching from a flexible state to a near-rigid support state, providing uniform and sufficient extrusion straightening pressure for the straightening operation, and accurately correcting the bending and warping deformation of the flat copper wire. When the roller leaves the wire extrusion area, the shearing force disappears, and the fluid quickly returns to a flexible flow state. It can adaptively adapt to flat copper wires of different thicknesses and widths, and automatically compensate for the small dimensional tolerances that exist in the wire production process, avoiding local overpressure and underpressure problems, and improving the straightening uniformity. The bottom end of the rotating roller 33 inside the stress reduction component is fixedly connected to a connecting plate 35. Multiple sets of plug strips 34 are evenly distributed on the top surface of the connecting plate 35. Through the plug-in cooperation between the plug strips 34 and the plug slots 36, the outer N-level arc magnet 31 and the outer S-level arc magnet 32 ​​are alternately fixed and installed. The installation and removal are convenient and the positioning is accurate. During the synchronous rotation of the upper and lower sets of rotating rollers 33 in opposite directions, the upper and lower magnetic poles are always arranged facing each other, forming a closed alternating magnetic field that penetrates the flat copper wire vertically. The flat copper wire cuts the alternating magnetic field lines at a uniform speed, and uniform eddy currents are induced throughout its cross-section. The eddy currents and the alternating magnetic field couple to generate high-frequency micro-alternating forces, which continuously relax the copper lattice distortion and disperse the local concentrated residual stress generated by the straightening process. Efficient stress reduction can be completed without physical contact, reducing the probability of wire springback from the root. During the magnetohydrodynamic stress relief process, eddy current Joule heating is generated, which can easily lead to an increase in the temperature of the flat copper wire and aging of the insulation layer. At this time, the external low-temperature airflow is introduced into the equipment through the cold air inlet pipe 6, and after being diverted by the air guide frame 7, it enters the air guide seat 9. Then, it is precisely sprayed onto the magnetic field operation area and the surface of the flat copper wire through two symmetrically arranged air jet boxes 10, so as to achieve uniform air cooling throughout the entire area. This structure can remove the heat generated by the eddy current and the residual heat from the straightening process in real time, stabilize the working temperature of the wire in a safe range, effectively prevent the insulation layer of the flat copper wire from cracking at high temperature and aging and falling off, and comprehensively protect the appearance quality and insulation performance of the processed wire.

[0029] In another implementation scheme, such as Figures 1-9 As shown, the drive assembly includes a drive motor 19, a second transmission wheel 17, a third transmission wheel 24, and multiple first transmission wheels 14. A fixed base 18 is fixedly mounted on the outside of the drive motor 19, and the fixed base 18 is fixedly mounted on the bottom of the worktable 1. The output end of the drive motor 19 is fixedly connected to the second transmission wheel 17. The second transmission wheel 17, the third transmission wheel 24, and the multiple first transmission wheels 14 are all rotatably mounted on the bottom of the worktable 1. The multiple first transmission wheels 14 are respectively fixedly connected to the bottom of multiple rotating plates 21. The second transmission wheel 17 is fixedly connected to the bottom of one of the rotating plates 21. The top of the third wheel 24 is fixedly connected to the bottom of one of the connecting plates 35. The outer sides of the two first transmission wheels 14 are fitted with transmission belts 15. The outer sides of the second transmission wheel 17 and one of the first transmission wheels 14 are fitted with transmission belts 16. The outer sides of the third transmission wheel 24 and one of the first transmission wheels 14 are fitted with transmission belts 38. The bottom of the third transmission wheel 24 is fixedly fitted with a transmission gear 23. The bottom of one of the connecting plates 35 is fixedly fitted with a transmission gear 22. The outer sides of the transmission gear 22 and the outer sides of the transmission gear 23 mesh with each other.

[0030] After the equipment is powered on, the overall drive assembly enters a synchronous working state. The drive motor 19 mounted on the bottom fixed base 18 serves as the sole power source, and its output end drives the transmission wheel 17 to rotate at high speed. The transmission wheel 17 is linked to the adjacent transmission wheel 14 via the transmission belt 16. At the same time, multiple sets of transmission wheels 14 are linked to operate synchronously via the transmission belt 15. This can precisely control the operating speed of the three straightening components, completely avoiding the problem of speed difference in multi-roller operation, ensuring that the flat copper wire is fed at a uniform speed and the force is uniform throughout the process, providing a stable power foundation for subsequent precise straightening operations. The drive assembly drives the transmission wheel 24 to rotate via the independently arranged transmission belt 38. Then, through the precisely meshing transmission gears 22 and 33, the power is reversed and transmitted synchronously. The upper and lower rotating rollers 33 are strictly controlled to maintain the same speed and rotate synchronously in opposite directions, ensuring that the subsequent magnetic field effect is symmetrical and balanced, providing a precise motion foundation for non-contact stress reduction.

[0031] In another implementation scheme, such as Figures 1-9 As shown, a protective cover 20 is fixedly installed on the bottom of the workbench 1. The transmission gear 22 and the transmission gear 3 23 are located inside the protective cover 20. The top of the transmission gear 1 26 is equipped with a protective cover 13 through a bearing, and the protective cover 13 covers the outside of the transmission gear 1 26. The bottom of the workbench 1 is fixedly installed with support legs 8. There are four support legs 8, and the four support legs 8 are installed in a rectangular symmetrical arrangement at the four corners of the bottom of the workbench 1.

[0032] The protective covers 13 and 20 fixed at the bottom of the workbench 1 provide full-enclosed protection for precision transmission components such as transmission gear 26, transmission gear 22 and transmission gear 3 23, effectively preventing dust, debris and oil from entering the transmission gap, avoiding gear jamming, wear and transmission failure and other faults, and greatly improving the stability and service life of the equipment during continuous operation.

[0033] Working principle: After the equipment is powered on, the overall drive assembly enters a synchronous working state. The drive motor 19 mounted on the bottom fixed base 18 serves as the sole power source, and its output end drives the transmission wheel 17 to rotate at high speed. The transmission wheel 17 is linked to the adjacent transmission wheel 14 via the transmission belt 16. At the same time, multiple sets of transmission wheels 14 are linked synchronously via the transmission belt 15, which can precisely control the operating speed of the three straightening components, completely avoiding the problem of speed difference in multi-roller operation, ensuring that the flat copper wire is fed at a uniform speed and with uniform force throughout the process, providing a stable power foundation for subsequent precise straightening operations; all transmission wheels 14 are connected to the corresponding rotating plate 21. With a fixed connection at the bottom, during power transmission, the rotating plate 21 is driven to make a stable circumferential rotation inside the mounting sleeve 3 on the top of the workbench 1. The mounting sleeve 3 plays a limiting and supporting role to prevent deviation or jamming during rotation. The inner sleeve roller 30 fixed at the top of the rotating plate 21 rotates synchronously with the rotating plate 21. Relying on the snap-fit ​​groove 29 arranged in a ring on the outside of the inner sleeve roller 30, it precisely snaps and limits the four snap-fit ​​strips 27 symmetrically fixed on the inside of the outer frame 5, realizing circumferential fixation and axial limitation. This ensures that the outer frame 5 and the elastic resin tube 2 covered on the outside are not relatively slipped and rotate synchronously with the inner sleeve roller 30, ensuring the consistency of the overall operation of the straightening roller. Each straightening assembly is equipped with two symmetrically arranged straightening rollers. The transmission gears 26 fixed at the top of the two outer frames 5 mesh with each other, and under the power linkage, the two sets of straightening rollers are controlled to achieve precise synchronous reverse rotation, forming a symmetrical pure rolling extrusion straightening of the flat copper wire passing through the middle. There is no relative sliding friction, which can effectively protect the insulation layer on the surface of the flat copper wire. During the continuous straightening operation, the sealed cooling liquid cavity 28 reserved inside the inner roller 30 is filled with cooling medium, which quickly removes the heat accumulated by the roller body extruding the wire and frictional operation, effectively reducing the working temperature of the roller body, preventing the elastic resin cylinder 2 from aging, deforming and degrading due to high temperature, and ensuring the long-term stable operation of the straightening structure. The elastic resin cylinder 2 and the outer outer frame 5 form a sealed annular non-circular structure. The Newtonian fluid cavity 25 is completely filled with a shear-thickening non-Newtonian fluid, forming a flexible adaptive straightening structure. When the flat copper wire passes through and is compressed, the elastic resin cylinder 2 deforms under the pressure of the wire, creating an instantaneous shearing effect on the non-Newtonian fluid in the cavity. The fluid instantly thickens and hardens, switching from a flexible state to a near-rigid support state, providing uniform and sufficient extrusion straightening pressure for the straightening operation, and accurately correcting the bending and warping deformation of the flat copper wire. When the roller leaves the wire extrusion area, the shearing force disappears, and the fluid quickly returns to a flexible flow state. It can adaptively adapt to flat copper wires of different thicknesses and widths, and automatically compensate for the small dimensional tolerances that exist in the wire production process, avoiding local overpressure and underpressure problems, and improving the straightening uniformity. The flat copper wire passes through three sets of progressively straightening components to complete multiple micro-shaping processes, completely eliminating longitudinal and lateral deformations. It then enters the working area of ​​the stress reduction component at a constant speed in a straight and stable state. The drive component, via an independently installed transmission belt 38, drives the transmission wheel 24 to rotate. Power is then reversed and transmitted synchronously through precisely meshing transmission gears 22 and 23. Strict control ensures that the upper and lower rotating rollers 33 maintain equal speeds and rotate synchronously in opposite directions, guaranteeing symmetrical and balanced subsequent magnetic field action and providing a precise motion basis for non-contact stress reduction. A connecting plate 35 is fixedly connected to the bottom of the rotating roller 33, and multiple sets of plugs are evenly distributed on the top surface of the connecting plate 35. Strip 34, through the insertion and engagement of the insertion strip 34 and the insertion slot 36, enables the alternating fixed installation of the outer N-level arc magnet 31 and the outer S-level arc magnet 32. It is convenient to install and remove and has precise positioning. During the synchronous rotation of the upper and lower sets of rotating rollers 33 in opposite directions, the upper and lower magnetic poles are always aligned, forming a closed alternating magnetic field that penetrates the flat copper wire vertically. The flat copper wire cuts the alternating magnetic field lines at a uniform speed, and uniform eddy currents are induced throughout its cross-section. The coupling of the eddy currents and the alternating magnetic field generates a high-frequency micro-alternating force, which continuously relaxes the copper lattice distortion and disperses the localized concentrated residual stress generated by the straightening process. It can achieve efficient stress reduction without physical contact, thereby reducing the probability of wire springback from the root. During the magnetohydrodynamic stress relief process, eddy current Joule heat is generated, which can easily lead to an increase in the temperature of flat copper wire and aging of the insulation layer. At this time, the external low-temperature airflow is introduced into the equipment through the cold air inlet pipe 6, and after being diverted by the air guide frame 7, it enters the air guide seat 9. Then, it is precisely sprayed onto the magnetic field working area and the surface of the flat copper wire through two symmetrically arranged sets of jet boxes 10, achieving uniform air cooling throughout the entire area. This structure can remove the heat generated by eddy currents and the residual heat from the straightening process in real time, stabilizing the working temperature of the wire in a safe range, effectively preventing high-temperature cracking and aging of the insulation layer of the flat copper wire, and comprehensively ensuring the appearance quality and insulation performance of the processed wire. The top of the fixed cylinder 11 of the stress relief component is detachably connected to the threaded cover 12 via the threaded groove 37, which allows for quick opening of the closed cavity. This facilitates the disassembly, maintenance, and replacement of core vulnerable and easily repaired components such as the internal rotating roller 33 and the arc-shaped magnet, reducing equipment operation and maintenance costs. Meanwhile, the protective covers 13 and 20 fixed at the bottom of the workbench 1 provide full-enclosed protection for precision transmission components such as transmission gear 26, transmission gear 22, and transmission gear 33, effectively preventing dust, debris, and oil from entering the transmission gap and avoiding gear jamming, wear, transmission failure, and other malfunctions. This significantly improves the stability and service life of the equipment during continuous operation.

[0034] 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 flat copper wire straightening device with stress reduction function, comprising a worktable (1), characterized in that: Three straightening components are installed on the top of the worktable (1), stress reduction components are rotatably installed on the top of the worktable (1), and drive components are installed on the bottom of the worktable (1).

2. The flat copper wire straightening device with stress reduction function according to claim 1, characterized in that: All three sets of straightening components include two rotating plates (21) and two outer frames (5). Inner rollers (30) are fixedly installed on the top of the two rotating plates (21). The outer side of the inner rollers (30) is provided with snap-fit ​​grooves (29). Cooling fluid chambers (28) are provided inside the two inner rollers (30). Elastic resin tubes (2) are fixedly installed on the outer side of the two outer frames (5). A non-Newtonian fluid chamber (25) is provided between the elastic resin tube (2) and the outer frame (5). The non-Newtonian fluid chamber (25) is filled with non-Newtonian fluid. Four snap-fit ​​strips (27) are symmetrically fixedly installed on the inner side of the two outer frames (5). The outer frames (5) are sleeved on the outer side of the inner rollers (30). The snap-fit ​​strips (27) are snapped on the inner side of the snap-fit ​​grooves (29). A transmission gear (26) is fixedly installed on the top of the outer frames (5). The outer sides of the transmission gear (26) are meshed.

3. A flat copper wire straightening device with stress reduction function according to claim 2, characterized in that: The top of the workbench (1) is fixedly installed with a mounting sleeve (3), the rotating plate (21) is rotatably installed on the inner side of the mounting sleeve (3), and the top of the mounting sleeve (3) is rotatably installed with a rotating rod (4), the rotating rod (4) being located between the two rotating plates (21).

4. A flat copper wire straightening device with stress reduction function according to claim 3, characterized in that: The stress reduction component includes a magnetic flux reduction component and a cooling component. The magnetic flux reduction component includes two fixed cylinders (11) and two rotating rollers (33). The two rotating rollers (33) are located inside the two fixed cylinders (11). A connecting plate (35) is fixedly installed at the bottom of each of the two rotating rollers (33). Multiple insertion strips (34) are fixedly installed on the top of the connecting plate (35). Outer N-level arc magnets (31) and outer S-level arc magnets (32) are alternately installed on the outer side of the multiple insertion strips (34). Insertion grooves (36) are opened inside the outer N-level arc magnets (31) and outer S-level arc magnets (32). Insertion strips (34) are inserted into the inner side of the insertion grooves (36). Threaded grooves (37) are opened on the top of the two fixed cylinders (11). Threaded caps (12) are threadedly connected inside the threaded grooves (37).

5. A flat copper wire straightening device with stress reduction function according to claim 4, characterized in that: The cooling assembly includes an air guide seat (9), two fixed cylinders (11) are fixedly installed on the top of the workbench (1), and the air guide seat (9) is sleeved on the outside of the two fixed cylinders (11). The top of the air guide seat (9) is connected to two jet boxes (10), the outside of the air guide seat (9) is connected to an air guide frame (7), one side of the air guide frame (7) is connected to a cold air inlet pipe (6), and the two jet boxes (10) are respectively installed on the outside of the two fixed cylinders (11).

6. A flat copper wire straightening device with stress reduction function according to claim 5, characterized in that: The drive assembly includes a drive motor (19), a second transmission wheel (17), a third transmission wheel (24), and multiple first transmission wheels (14). A fixed base (18) is fixedly installed on the outside of the drive motor (19). The fixed base (18) is fixedly installed on the bottom of the workbench (1). The output end of the drive motor (19) is fixedly connected to the second transmission wheel (17). The second transmission wheel (17), the third transmission wheel (24), and the multiple first transmission wheels (14) are all rotatably installed on the bottom of the workbench (1).

7. A flat copper wire straightening device with stress reduction function according to claim 6, characterized in that: Multiple drive wheels (14) are fixedly connected to the bottom of multiple rotating plates (21), drive wheels (17) are fixedly connected to the bottom of one of the rotating plates (21), and the top of drive wheels (24) is fixedly connected to the bottom of one of the connecting plates (35). Drive belts (15) are installed on the outer sides of two drive wheels (14), drive belts (16) are installed on the outer sides of drive wheels (17) and one of drive wheels (14), and drive belts (38) are installed on the outer sides of drive wheels (24) and one of drive wheels (14).

8. A flat copper wire straightening device with stress reduction function according to claim 7, characterized in that: The bottom of the transmission wheel three (24) is fixedly installed with transmission gear three (23), and the bottom of one of the connecting plates (35) is fixedly installed with transmission gear two (22). The outer side of transmission gear two (22) meshes with the outer side of transmission gear three (23).

9. A flat copper wire straightening device with stress reduction function according to claim 8, characterized in that: The bottom of the workbench (1) is fixedly equipped with a second protective cover (20). The second transmission gear (22) and the third transmission gear (23) are located inside the second protective cover (20). The top of the first transmission gear (26) is equipped with a first protective cover (13) through a bearing, and the first protective cover (13) covers the outside of the first transmission gear (26).

10. A flat copper wire straightening device with stress reduction function according to claim 9, characterized in that: The bottom of the workbench (1) is fixedly equipped with support legs (8). There are four support legs (8), and the four support legs (8) are installed in a rectangular symmetrical arrangement at the four corners of the bottom of the workbench (1).

Images