Battery pole spinning forming device

Abstract

The invention discloses a spinning forming device for a battery pole column, and relates to the technical field of spinning forming. The problem of process integration is solved. The device specifically comprises a conveying part used for conveying metal bars and a spinning part used for integrally cutting and spinning the metal bars, a high-frequency heating part used for heating the bars is arranged at a feeding port of the spinning part, and the spinning part is composed of two symmetrically-arranged supporting frames and three spinning rollers arranged in a triangular shape. The three spinning rollers are slidably connected to the inner wall of the supporting frame in the radial direction, and a cutter is arranged on the outer wall, located on the metal bar feeding side, of one spinning roller. By arranging the conveying part, the high-frequency heating part and the spinning part, conveying, heating, cutting and spinning of a metal bar are integrated, transfer is not needed, the whole machining efficiency is improved, meanwhile, due to the fact that the heating procedure is adjacent to the cutting and spinning procedure, heat loss can be avoided, and a certain energy-saving effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of spinning forming technology, and more particularly to a spinning forming apparatus for battery terminals. Background Technology

[0002] Battery terminals are key conductive components in batteries (especially power batteries and energy storage batteries), responsible for drawing current from inside the cell to the external circuit. They require excellent conductivity, high structural strength, reliable sealing performance, and precise dimensions.

[0003] Spin forming is an advanced metal plastic forming process. In battery terminal manufacturing, it specifically refers to fixing cylindrical or disc-shaped metal blanks such as copper and aluminum onto a high-speed rotating spindle. Simultaneously, forming rollers controlled by a CNC system apply enormous, programmable radial and axial pressure to the blank, causing it to adhere tightly to the mold surface and undergo point-by-point, continuous plastic deformation, ultimately forming a complex-shaped, dense terminal part in one step.

[0004] Compared with traditional machining (turning and milling) and forging, the core advantage of spin forming is: High material utilization: near-net-shape forming, virtually chip-free machining, saving expensive metals.

[0005] Continuous fiber structure: Metal flow lines remain intact along the contour of the part, significantly improving the product's strength, fatigue life, and electrical conductivity uniformity.

[0006] Good surface quality: The molded surface has a high degree of smoothness and can be used directly or requires only a small amount of finishing.

[0007] In the existing technology, when using metal rods combined with spinning process to produce battery terminals, the conventional steps are: rod cutting - billet heating - spinning forming. These are all independent steps without mutual cooperation, resulting in low efficiency. Furthermore, the billet needs to be clamped during the process of heating the billet after cutting and then transferring it to the spinning process. The high temperature of the heated billet can easily damage the clamping parts.

[0008] Therefore, the present invention proposes a battery terminal spinning forming device. Summary of the Invention

[0009] The purpose of this invention is to address the shortcomings of existing technologies by proposing a battery terminal spinning forming device.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: A battery terminal spinning forming device includes a conveying section for conveying metal rods and a spinning section for cutting and spinning the metal rods together. The feeding port of the spinning section is provided with a high-frequency heating section for heating the rods. The spinning section consists of two symmetrically arranged support frames and three spinning rollers arranged in a triangle. The three spinning rollers are radially slidably connected to the inner wall of the support frames. One of the spinning rollers is provided with a cutter on the outer wall of the side where the metal rod is fed. The other two spinning rollers are provided with guide slot frames that cooperate with the cutter on the same side. The side wall of the support frame is provided with a centering drive mechanism for controlling the synchronous movement of the three spinning rollers, and the side wall of the support frame is fixed with a spinning motor by bolts. The output shaft of the spinning motor is driven and engaged with the three spinning rollers through a tensioned synchronous transmission assembly.

[0011] Preferably, the spinning roller includes a roller core, a spindle coaxially fixed to the inner wall of the roller core, a plurality of spinning sections disposed on the outer side of the roller core, and a pressure plate disposed on the outer side of the roller core.

[0012] Furthermore: the guide frame and cutter are located at one end of the roller core, the pressure plate is located at the other end of the roller core, and multiple spinning sections are arranged in parallel in the middle, with the outer diameters of the two pressure plates being different. One pressure plate has an outer diameter larger than the outer diameter of the spinning section, and the other pressure plate has an outer diameter smaller than the outer diameter of the spinning section. The sum of the outer diameters of the two pressure plates is less than or equal to the sum of the outer diameters of the two spinning sections and the outer diameter of the battery terminal.

[0013] Based on the aforementioned scheme: the side wall of the roller core is provided with a groove, and the inner side wall of the guide frame, the cutter and the spinning section are all provided with protrusions that fit with the groove. The inner wall of the pressure plate is rotatably connected to a stud, and the end of the stud is connected to a locking block by a thread, and the mating surface of the locking block and the groove is provided with mutually cooperating locking teeth.

[0014] A preferred embodiment of the aforementioned scheme is as follows: the centering drive mechanism includes a rotating frame and multiple connecting rods rotatably connected to the outer circumferential wall of the rotating frame. The two ends of the spindle are rotatably connected to sliders, which are radially slidably connected to the support frame. The side wall of the slider is fixed with a hinge shaft. The other end of the connecting rod is rotatably connected to the outer wall of the hinge shaft. A driver for rotating the rotating frame is also provided on one side of the support frame.

[0015] As a further aspect of the present invention: the high-frequency heating part includes a heating coil and a magnetic shielding cover fixed to the outside of the heating coil and preventing the magnetic field of the heating coil from being transmitted to the outside and the end, the magnetic shielding cover being fixed to the inner wall of the support frame.

[0016] Meanwhile, the conveying unit includes a roller conveyor and one or more sets of pressurizing components disposed at the tail end of the roller conveyor in the material conveying direction. The pressurizing components include a pressure roller and a roller frame rotatably connected to the outside of the pressure roller. The roller frame is slidably connected to the outer wall of the roller conveyor through a guide rod, and a tension spring is fastened between the roller frame and the roller conveyor.

[0017] As a preferred embodiment of the present invention, the bottom of the roller conveyor is driven to the base via a lifting assembly.

[0018] Meanwhile, the bottom of the spinning section is provided with a material guiding component for receiving and guiding materials, and a storage box is provided at the outlet of the material guiding component.

[0019] As a preferred embodiment of the present invention: the material guiding assembly includes an outer guide frame supported and fixed by a support column and an inner guide frame rotatably connected to the inner side of the outer guide frame by a hinge rod, and a baffle is fixed on the inner wall of the outer guide frame at the bottom end of the inner guide frame. The hinge rod is located in the middle of the inner guide frame.

[0020] The beneficial effects of this invention are as follows: 1. This invention integrates the conveying, heating, cutting, and spinning of metal rods into one unit by setting up a conveying unit, a high-frequency heating unit, and a spinning unit, eliminating the need for transfer and increasing the overall processing efficiency. At the same time, since the heating, cutting, and spinning processes are adjacent, heat loss can be avoided, resulting in a certain energy-saving effect.

[0021] 2. This invention, by setting up a cutter, a spinning joint, and a pressure plate, utilizes multiple spinning rollers to achieve radial positioning of the blank, and utilizes the side walls of the cutter and the side walls of the pressure plate to achieve axial positioning of the pole piece, thereby preventing unevenness of the end face of the finished pole piece. At the same time, the guide frame, cutter, and spinning joint are all set on the outer wall of the roller core in a sleeved manner, combined with the locking of the pressure plate. This increases the ease of disassembly and assembly of the entire spinning roller, and also allows the length of the final pole piece to be adjusted by adjusting the number of spinning joints. Furthermore, when the entire spinning roller is partially damaged, repair can be achieved by replacing one or several spinning joints, reducing maintenance costs.

[0022] 3. In this invention, by setting a centering drive mechanism, multiple spinning rollers can be driven to move synchronously, thereby determining the position of the spinning center and the cutting center, ensuring that they coincide with the axis of the metal bar conveyed by the conveying unit, thus preventing radial runout of the bar during cutting.

[0023] 4. The present invention, by setting up a pressure component and a lifting component, can, on the one hand, adjust the axial position of the bar by lifting the lifting component to make it coincide with the center of spinning, so as to ensure the processing effect; on the other hand, it can also fix the bar by pressure through the pressure component to prevent radial runout of the axis during cutting, thereby increasing safety.

[0024] 5. This invention, by setting an outer guide frame, a baffle, and an inner guide frame, and keeping the torques on both sides of the inner guide frame level, achieves the following: Firstly, when falling, the rotation of the inner guide frame and the resistance generated by the rotation of the previously processed battery terminal block can buffer the impact between the inner guide frame and the falling terminal block. Secondly, the entire terminal block is not directly fed into the storage box, but is first stopped at the bottom of the inner guide frame by the baffle for cooling. After cooling, it will continue to roll into the storage box until the next terminal block is finished being spun and falls. This prevents the hot, flexible terminal block from colliding with other cooled and hardened terminal blocks, causing damage. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a battery terminal spin forming device proposed in this invention; Figure 2 This is a schematic diagram of the spinning section structure of a battery terminal spinning forming device proposed in this invention; Figure 3 This is a schematic diagram of the spinning roller structure of a battery terminal spinning forming device proposed in this invention; Figure 4 This is a schematic cross-sectional view of the spinning roller structure of a battery terminal spinning forming device proposed in this invention. Figure 1 ; Figure 5 This is a schematic cross-sectional view of the spinning roller structure of a battery terminal spinning forming device proposed in this invention. Figure 2 ; Figure 6 This is a schematic diagram of the centering drive mechanism of a battery terminal spin forming device proposed in this invention; Figure 7 This is a schematic diagram of the high-frequency heating section of a battery terminal spin forming device proposed in this invention; Figure 8 This is a schematic diagram of the conveying section structure of a battery terminal spin forming device proposed in this invention; Figure 9 This is a cross-sectional view of the material guiding assembly of a battery terminal spin forming device proposed in this invention.

[0026] In the diagram: 1. Conveying section; 2. High-frequency heating section; 3. Spinning section; 4. Material guiding assembly; 5. Storage bin; 6. Support frame; 7. Knife groove frame; 8. Centering drive mechanism; 9. Cutter; 10. Spinning roller; 11. Tensioned synchronous transmission assembly; 12. Spinning motor; 13. Spinning joint; 14. Pressure plate; 15. Roller core; 16. Mandrel; 17. Protrusion; 18. Groove; 19. Locking block; 20. Stud; 21. Locking tooth; 22. Hinge shaft; 23. Slider; 24. Connecting rod; 25. Rotating frame; 26. Heating coil; 27. Magnetic shield; 28. Roller conveyor; 29. ​​Pressure roller; 30. Roller frame; 31. Guide rod; 32. Tension spring; 33. Lifting assembly; 34. Support column; 35. Outer guide frame; 36. Baffle; 37. Hinge rod; 38. Inner guide frame; 39. Base. Detailed Implementation

[0027] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] Example 1: A battery terminal spin forming apparatus, such as Figures 1-9 As shown, it includes a conveying section 1 for conveying metal rods and a spinning section 3 for cutting and spinning metal rods in one piece, and the feed port of the spinning section 3 is provided with a high-frequency heating section 2 for heating the rods.

[0030] The spinning section 3 consists of two symmetrically arranged support frames 6 and three spinning rollers 10 arranged in a triangle. The three spinning rollers 10 are radially slidably connected to the inner wall of the support frame 6. One of the spinning rollers 10 is provided with a cutter 9 on the outer wall of the side where the metal bar is fed. The other two spinning rollers 10 are provided with guide slot frames 7 that cooperate with the cutter 9 on the same side.

[0031] The side wall of the support frame 6 is provided with a centering drive mechanism 8 for controlling the synchronous movement of the three spinning rollers 10, and the side wall of the support frame 6 is fixed with a spinning motor 12 by bolts. The output shaft of the spinning motor 12 is driven and engaged with the three spinning rollers 10 through a tensioning synchronous transmission assembly 11. In this embodiment, the specific type of tensioning synchronous transmission assembly 11 is not limited. It can be a belt drive or a chain drive. Since the spinning rollers 10 have a certain resistance when spinning, the preferred tensioning synchronous transmission assembly 11 in this embodiment is a chain drive assembly with an elastic tensioning wheel.

[0032] In use, the device can transport the metal rod to be spun through the conveying section 1. When the rod is transported to the high-frequency heating section 2, the high-frequency heating section 2 heats the rod by electromagnetic induction eddy current. The heated rod is then transported to the spinning section 3, where the spinning motor 12 starts and drives the three spinning rollers 10 to rotate through the tensioning synchronous transmission assembly 11. At the same time, the centering drive mechanism 8 drives the three spinning rollers 10 to move towards the center. At this time, because the cutter 9 protrudes outward, it first contacts the heated rod to cut it. After cutting, the blank enters between the three spinning rollers 10. Then, while controlling the minimum moving distance between the spinning rollers 10, the blank is spun by the three rotating spinning rollers 10 to form the battery terminal.

[0033] This device integrates the conveying, heating, cutting, and spinning of metal rods into one unit by setting up a conveying unit 1, a high-frequency heating unit 2, and a spinning unit 3. This eliminates the need for intermediate transfers, increasing the overall processing efficiency. At the same time, since the heating, cutting, and spinning processes are adjacent, heat loss can be avoided, resulting in a certain energy-saving effect.

[0034] like Figure 3 , 4 As shown in Figures 5 and 6, the spinning roller 10 includes a roller core 15, a spindle 16 coaxially fixed to the inner wall of the roller core 15, a plurality of spinning sections 13 disposed on the outer side of the roller core 15, and a pressure plate 14 disposed on the outer side of the roller core 15.

[0035] The guide frame 7 and the cutter 9 are located at one end of the roller core 15, and the pressure plate 14 is located at the other end of the roller core 15. Multiple spinning sections 13 are arranged in parallel in the middle, and the outer diameters of the two pressure plates 14 are different. The outer diameter of one pressure plate 14 is larger than the outer diameter of the spinning section 13, and the outer diameter of the other pressure plate 14 is smaller than the outer diameter of the spinning section 13. The sum of the outer diameters of the two pressure plates 14 is less than or equal to the sum of the outer diameters of the two spinning sections 13 and the outer diameter of the battery terminal.

[0036] The side wall of the roller core 15 is provided with a groove 18, and the inner side wall of the guide frame 7, the cutter 9 and the spinning section 13 are all provided with a protrusion 17 that is clearance-fitted with the groove 18.

[0037] The inner wall of the pressure plate 14 is rotatably connected to a stud 20, and the end of the stud 20 is threadedly connected to a locking block 19. The locking block 19 and the mating surface of the groove 18 are provided with mutually cooperating locking teeth 21.

[0038] When assembling the spinning roller 10, the guide rail frame 7 or the cutter 9 can be first fitted onto the outside of one section of the roller core 15. Then, the number of spinning sections 13 required is determined according to the length of the required battery terminal, and the spinning sections 13 are fitted onto the outer wall of the roller core 15. After placing the pressure plate 14 at the other end, the locking block 19 is rotated so that the locking block 19 and the locking teeth 21 of the groove 18 are engaged to lock. During the spinning process, the blank will extend axially and the outer diameter will become thinner. The cutter 9 and the guide rail frame 7 are the cutting points. As multiple spinning rollers 10 approach each other, the blank is spun and extended until it extends to the two pressure plates 14, and the side of the pressure plate 14 with the larger outer diameter is limited. Then the spinning roller 10 continues to apply pressure along the axial direction of the blank and rotates until it is spun and formed.

[0039] This device, by setting up a cutter 9, a spinning section 13, and a pressure plate 14, uses multiple spinning rollers 10 to achieve radial positioning of the blank, and uses the side walls of the cutter 9 and the side walls of the pressure plate 14 to achieve axial positioning of the pole piece, thereby preventing unevenness of the end face of the finished pole piece. At the same time, the guide frame 7, the cutter 9, and the spinning section 13 are all set on the outer wall of the roller core 15 in a sleeved manner, and combined with the locking of the pressure plate 14, it increases the convenience of disassembly and assembly of the entire spinning roller 10, and also allows the length of the final pole piece to be adjusted by adjusting the number of spinning sections 13. In addition, when the entire spinning roller 10 is partially damaged, it can be repaired by replacing one or several spinning sections 13, reducing maintenance costs.

[0040] To solve the problem of center-driven operation; such as Figure 2 , 6 As shown, the centering drive mechanism 8 includes a rotating frame 25 and a plurality of connecting rods 24 rotatably connected to the outer circumferential wall of the rotating frame 25. The two ends of the spindle 16 are rotatably connected to sliders 23, which are radially slidably connected to the support frame 6. The side wall of the slider 23 is fixed with a hinge shaft 22. The other end of the connecting rod 24 is rotatably connected to the outer wall of the hinge shaft 22. A driver for rotating the rotating frame 25 is also provided on one side of the support frame 6.

[0041] In this embodiment, the type of starter is not specifically limited. It can be a self-locking motor or a mechanical component such as a telescopic rod. When using a motor, the motor can be fixed to the side wall of the support frame 6, and the motor output shaft can be driven and connected to the side wall of the rotating frame 25. When using a telescopic rod, the housing part of the telescopic rod can be rotatably connected to the side wall of the support frame 6, and the telescopic end of the telescopic rod can be rotatably connected to the circumferential wall of the rotating frame 25. All of the above technologies are existing technologies, and those skilled in the art can select them according to their needs. This embodiment has not made any creative effort on them, so they will not be described in detail.

[0042] When the driver drives the rotating frame 25 to rotate, it can drive multiple sliders 23 to move synchronously through the connecting rod 24, thereby driving the spinning roller 10 to move synchronously through the spindle 16.

[0043] This device, by setting a centering drive mechanism 8, can drive multiple spinning rollers 10 to move synchronously, thereby determining the position of its spinning center and cutting center, ensuring that it coincides with the axis of the metal bar conveyed by the conveying unit 1, thus preventing radial runout of the bar during cutting.

[0044] To solve the heating problem; such as Figure 7 As shown, the high-frequency heating part 2 includes a heating coil 26 and a magnetic shield 27 fixed to the outside of the heating coil 26 to prevent the magnetic field of the heating coil 26 from being transmitted to the outside and the end. The magnetic shield 27 is fixed to the inner wall of the support frame 6.

[0045] When the rod enters the inner side of the heating coil 26, a high-frequency current is passed into the heating coil 26, which heats the rod through electromagnetically induced eddy currents. At the same time, the magnetic shield 27 can shield the magnetic field of the heating coil 26, so that the magnetic field of the heating coil 26 cannot be transmitted from the outside and the end, preventing other components from being abnormally heated.

[0046] To solve the transportation problem; such as Figure 8 As shown, the conveying unit 1 includes a roller conveyor 28 and one or more sets of pressurizing components disposed at the tail end of the roller conveyor 28 in the material conveying direction. The pressurizing components include a pressure roller 29 and a roller frame 30 rotatably connected to the outside of the pressure roller 29. The roller frame 30 is slidably connected to the outer wall of the roller conveyor 28 through a guide rod 31, and a tension spring 32 is fastened between the roller frame 30 and the roller conveyor 28.

[0047] Furthermore, the bottom of the roller conveyor 28 is connected to the base 39 via a lifting assembly 33.

[0048] This device, by setting up a pressure component and a lifting component 33, can, on the one hand, adjust the axial position of the bar by lifting the lifting component 33 to make it coincide with the center of spinning, thus ensuring the processing effect; on the other hand, it can also use the pressure component to fix the bar with pressure, preventing radial runout of the axis during cutting and increasing safety.

[0049] In this embodiment, the metal bar to be spun can be conveyed through the conveying unit 1. When the bar is conveyed to the high-frequency heating unit 2, the high-frequency heating unit 2 heats the bar by electromagnetic induction eddy currents. The heated bar is then conveyed to the spinning unit 3, and the driver is started. When the driver drives the rotating frame 25 to rotate, it can drive multiple sliders 23 to move synchronously through the connecting rod 24, thereby driving the spinning rollers 10 to move synchronously through the mandrel 16. At the same time, the spinning motor 12 is started, which drives the three sets of spinning rollers 10 to rotate through the tensioning synchronous transmission assembly 11. At the same time, the centering drive mechanism 8 drives the three sets of spinning rollers 10 to move towards the center. At this time, because the cutter 9 protrudes outward, it first contacts the heated bar to cut it. After cutting, the blank enters between the three spinning rollers 10. Then, while controlling the minimum moving distance between the spinning rollers 10, the three A rotating spinning roller 10 spins the blank to form battery terminals. When assembling the spinning roller 10, the guide groove frame 7 or the cutter 9 can be first fitted onto the outside of one section of the roller core 15. Then, the number of spinning sections 13 required is determined according to the length of the required battery terminals, and the spinning sections 13 are carefully fitted onto the outer wall of the roller core 15. After the pressure plate 14 is placed at the other end, the locking block 19 is rotated so that the locking block 19 and the locking teeth 21 of the groove 18 are engaged to lock. During the spinning process, the blank will extend axially and the outer diameter will become thinner. The cutter 9 and the guide groove frame 7 are the cutting points. As multiple spinning rollers 10 approach each other, the blank is spun and extended until it extends to the two pressure plates 14, and the side of the pressure plate 14 with the larger outer diameter is limited. Then the spinning roller 10 continues to apply pressure along the axial direction of the blank and rotates until it is spun and formed.

[0050] Example 2: A battery terminal spin forming apparatus, such as Figure 1 and Figure 9 As shown, in order to solve the material feeding problem, this embodiment makes the following improvements based on embodiment 1: the bottom of the spinning part 3 is provided with a material guiding component 4 for receiving and guiding materials, and the material guiding component 4 is provided with a material storage box 5 at the discharge point.

[0051] The material guiding assembly 4 includes an outer guide frame 35 supported and fixed by a support column 34 and an inner guide frame 38 rotatably connected to the inner side of the outer guide frame 35 by a hinge rod 37, and a baffle 36 is fixed on the inner wall of the outer guide frame 35 at the bottom end of the inner guide frame 38.

[0052] The hinge rod 37 is located in the middle of the inner guide frame 38.

[0053] In this embodiment, during initial use, a battery terminal of the same model is placed at the bottom of the inner guide frame 38. Since the lever arms of the inner guide frame 38 on both sides of the hinge rod 37 are the same, the bottom of the inner guide frame 38 will rotate downwards under the pressure of the battery terminal, causing the bottom of the inner guide frame 38 to be lower than the baffle 36. At this time, the battery terminal is blocked by the baffle 36. Subsequently, after the spinning is completed, the multiple spinning rollers 10 separate, and the battery terminal falls from the gaps in the bottom spinning rollers 10 to the inner guide frame 38. The battery terminal falls to the upper part of the inner guide frame 38, thus utilizing the gravity of the battery terminal and the impact force of the fall to keep the inner guide frame 38... The upper half of the inner guide frame 38 rotates and fits into the interior of the outer guide frame 35. At this time, the bottom end of the inner guide frame 38 moves upward and passes the baffle 36. The battery terminal passes the baffle 36 and continues to roll along the outer guide frame 35, falling into the storage box 5. After falling, although the upper half of the inner guide frame 38 fits into the outer guide frame 35, the entire inner guide frame 38 is still tilted. The fallen battery terminal will roll along the surface of the inner guide frame 38 until it rolls past the hinge rod 37. Then, the battery terminal will put pressure on the lower half of the inner guide frame 38, and the inner guide frame 38 will rotate again until the battery terminal rolls to the baffle 36 and is blocked. This process is repeated.

[0054] This device, by setting an outer guide frame 35, a baffle 36, and an inner guide frame 38, and by keeping the torques on both sides of the inner guide frame 38 level, can, on the one hand, utilize the rotation of the inner guide frame 38 and the resistance generated by the rotation of the previously processed battery terminal on the inner guide frame 38 to buffer the impact between the inner guide frame 38 and the terminal falling. On the other hand, the entire terminal being guided and unloaded will not directly enter the storage box 5, but will first be blocked by the baffle 36 at the bottom of the inner guide frame 38 for a portion to cool down. After cooling, it will continue to roll into the storage box 5 until the next terminal is finished being spun and falls. This prevents the hot, flexible terminal from colliding with other cooled and hardened terminals and causing damage.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A battery pole spinning forming device, comprising a conveying part (1) for conveying metal bars and a spinning part (3) for cutting and spinning the metal bars in one body, and the feeding port of the spinning part (3) is provided with a high-frequency heating part (2) for heating the bars, characterized in that the spinning part (3) is composed of two symmetrically arranged support frames (6) and three spinning rollers (10) arranged in a triangle, the three spinning rollers (10) are radially slidingly connected to the inner wall of the support frame (6), one of the spinning rollers (10) is located on the outer wall of the side where the metal bars are fed, the other two spinning rollers (10) are located on the same side and are provided with a guide groove frame (7) matched with the cutter (9). The side wall of the support frame (6) is provided with a centering driving mechanism (8) for controlling the synchronous movement of the three spinning rollers (10), and the side wall of the support frame (6) is fixed with a spinning motor (12) through bolts, and the output shaft of the spinning motor (12) is drivingly matched with the three spinning rollers (10) through a tension type synchronous transmission assembly (11). The spinning roller (10) comprises a roller core (15), a shaft (16) fixed coaxially to the inner wall of the roller core (15), a plurality of spinning segments (13) arranged on the outer side of the roller core (15), and a pressing plate (14) arranged on the outer side of the roller core (15).

2. The battery post spinning forming device according to claim 1, wherein The guide groove frame (7) and the cutter (9) are located at one end of the roller core (15), the pressing plate (14) is located at the other end of the roller core (15), the plurality of spinning segments (13) are arranged side by side in the middle, and the outer diameters of the two pressing plates (14) are different, one of the pressing plates (14) has an outer diameter greater than that of the spinning segment (13), the other pressing plate (14) has an outer diameter smaller than that of the spinning segment (13), and the sum of the outer diameters of the two pressing plates (14) is less than or equal to the sum of the outer diameters of the two spinning segments (13) and the battery pole.

3. The battery post spinning forming device according to claim 2, wherein The side wall of the roller core (15) is provided with a groove (18), and the inner walls of the guide groove frame (7), the cutter (9) and the spinning segment (13) are provided with protrusions (17) matched with the groove (18).

4. The battery post spinning forming device according to claim 3, wherein The inner wall of the pressing plate (14) is rotatably connected with a stud (20), the end of the stud (20) is threadedly connected with a locking block (19), and the mating surface of the locking block (19) and the groove (18) is provided with locking teeth (21) matched with each other. The centering driving mechanism (8) comprises a rotating frame (25) and a plurality of connecting rods (24) rotatably connected to the outer circumferential wall of the rotating frame (25), both ends of the shaft (16) are rotatably connected with sliding blocks (23), the sliding blocks (23) are radially slidingly connected to the support frame (6), the side wall of the sliding block (23) is fixed with a hinged shaft (22), the other end of the connecting rod (24) is rotatably connected to the outer wall of the hinged shaft (22), and one side of the support frame (6) is further provided with a driver for rotatingly driving the rotating frame (25).

5. The battery post spinning forming device according to claim 2, wherein ​ 6. The battery post spinning forming device according to claim 1, wherein The high-frequency heating part (2) comprises a heating coil (26) and a magnetic shielding cover (27) fixed outside the heating coil (26) and preventing the magnetic field of the heating coil (26) from transmitting to the outside and the end part, and the magnetic shielding cover (27) is fixed to the inner wall of the support frame (6).

7. The battery post spinning forming device according to claim 1, wherein The conveying part (1) comprises a roller conveyor (28) and one or more sets of pressurizing components arranged at the tail end of the material conveying direction of the roller conveyor (28), the pressurizing components comprise a press roller (29) and a roller frame (30) rotatably connected to the outside of the press roller (29), the roller frame (30) is slidably connected to the outer wall of the roller conveyor (28) through a guide rod (31), and a tension spring (32) is buckled between the roller frame (30) and the roller conveyor (28).

8. The battery post spinning forming device according to claim 7, wherein The bottom of the roller conveyor (28) is drivingly connected to the base (39) through a lifting assembly (33).

9. The battery post spinning forming device according to claim 1, wherein The bottom of the spinning part (3) is provided with a material guiding assembly (4) for receiving and guiding materials, and a storage box (5) is arranged at the material outlet of the material guiding assembly (4).

10. The battery post spinning forming device according to claim 9, wherein The material guiding assembly (4) comprises an outer guiding frame (35) fixedly supported by a support column (34) and an inner guiding frame (38) rotatably connected to the inside of the outer guiding frame (35) through a hinged rod (37), and a baffle (36) is fixed to the inner wall at the bottom end of the inner guiding frame (38); The hinged rod (37) is located at the middle position of the inner guiding frame (38).

Images