A spinning device for processing a fan accessory and a spinning method thereof

Abstract

The application is suitable for the technical field of fan accessory machining, and provides a spinning equipment and spinning method for fan accessory machining, which comprises a deviation rectifying unit, and a leveling unit is arranged above the deviation rectifying unit; the deviation rectifying unit comprises a bearing plate, a lifting cylinder, a bearing frame, a driving cylinder, a driving plate, a first clamping plate and a second clamping plate; the leveling unit comprises a support frame, a telescopic cylinder, a telescopic block, a movable rod, a rotating disc, a rotating column, a connecting rod, an adjusting cylinder and a leveling piece; through the reverse rotation of the metal blank, and the fact that two leveling pieces are respectively located on the two sides of the metal blank and are attached to the two sides of the annular belt of the metal blank, the purpose of the preliminary leveling of the excessive area of the metal blank is achieved; then, through the starting of the leveling piece, the displacement and autorotation of the leveling piece are realized, so that the purpose of the secondary autorotation leveling of the excessive area of the metal blank is achieved, and the range of the leveling of the excessive area of the metal blank is increased through the displacement.

Description

Technical Field

[0001] This invention relates to the field of wind turbine component processing technology, and more specifically, to a spinning equipment and spinning method for wind turbine component processing. Background Technology

[0002] Spinning is a metal plastic forming process that uses the relative motion between a rotating blank and a tool (such as a spinning wheel or rolling pin) to cause continuous local deformation of the blank, ultimately forming an axisymmetric hollow part. Among many application areas, the manufacturing of fan ventilation ducts is one of the typical applications of spinning technology.

[0003] Specifically, in the production of fan ventilation ducts, metal billets are fixed on spinning equipment. As the equipment rotates, a spinning wheel or rolling pin applies pressure to the surface of the billet and moves along a specific trajectory, causing the metal billet to gradually undergo plastic deformation during rotation. After multiple spinning operations, the wall thickness and shape of the billet are gradually adjusted to meet the design requirements of the ventilation duct, ultimately forming a smooth, uniform, and dimensionally accurate axisymmetric hollow ventilation duct. This process not only improves production efficiency but also ensures the quality and performance of the ventilation duct, meeting the stringent requirements of the fan system for ventilation ducts.

[0004] In practical applications of spinning technology, some manufacturers will bend the outer ring of the metal billet during the spinning process for specific production needs. However, this operation often introduces additional mechanical interference, causing the metal billet to deviate at an angle during the rotation process, which in turn affects the accuracy and stability of spinning. This deviation not only destroys the initial axisymmetry of the metal billet, but may also cause uneven deformation in subsequent spinning processes, ultimately affecting the dimensional accuracy, wall thickness uniformity and overall structural performance of the ventilation duct.

[0005] Meanwhile, during the spinning process, the sidewalls of the metal billet flow outwards, but the outer ring is bent (forming an upright or inclined edge), which is equivalent to locking the radial flow of the outer ring of the metal billet. This causes the material in the central area to be unable to expand freely outwards after being compressed, resulting in compressive stress in the transition zone (the annular zone not reached by spinning), which in turn leads to circumferential instability and wrinkling (similar to "lotus leaf edges"). This defect not only affects the appearance quality of the ventilation duct, but may also lead to uneven wall thickness, reduce the structural strength and airtightness of the product, and seriously affect its performance. Therefore, a spinning equipment and spinning method for processing fan parts are proposed to improve the existing problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide a spinning equipment and spinning method for processing fan parts.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a spinning equipment for processing wind turbine parts, comprising a spinning unit, a correction unit disposed on the top of the spinning unit, and a leveling unit disposed above the correction unit; the correction unit comprises a bearing plate, lifting cylinders symmetrically disposed below the bearing plate, a bearing frame disposed on the top of the bearing plate, a drive cylinder disposed on one side of the bearing frame, a drive plate disposed at the extension end of the drive cylinder, a first clamping plate disposed within the drive plate, and a second clamping plate disposed on one side of the first clamping plate. The leveling unit includes a support frame, a telescopic cylinder disposed on the top of the support frame, a telescopic block disposed at the telescopic end of the telescopic cylinder, movable rods symmetrically disposed on both sides of the telescopic block in the axial direction, a rotating disk disposed at the end of the movable rod away from the telescopic block, a rotating column disposed on the side of the rotating disk away from the movable rod, a connecting rod disposed at the end of the rotating column away from the rotating disk, an adjusting cylinder disposed on the side wall of the connecting rod, and a leveling component rotatably connected to the telescopic end of the adjusting cylinder; the end of the connecting rod away from the rotating column is rotatably connected to the leveling component.

[0008] The present invention is further configured such that: the spinning unit includes a worktable, a fixed box disposed on the top of the worktable, a rotary motor disposed at one end of the fixed box, a rotating shaft disposed at the output end of the rotary motor, an electric three-jaw chuck disposed at the end of the rotating shaft away from the rotary motor, a drive assembly disposed above the worktable, an abutment seat disposed on the top of the drive assembly, a robotic arm disposed on one side of the abutment seat, and a spinning roller rotatably connected to the execution end of the robotic arm; both ends of the rotating shaft penetrate the side wall of the fixed box, one end of the rotating shaft is connected to the output end of the rotary motor, and the other end is connected to the electric three-jaw chuck.

[0009] The invention is further configured such that: a slide rail is provided on the side wall of the fixed box, an electric slider is slidably mounted on the slide rail, a horizontal plate is provided on the side of the electric slider away from the slide rail, a clamping cylinder is provided at one end of the horizontal plate, clamping plates are symmetrically mounted on the clamping end of the clamping cylinder, and clamping rollers are rotatably connected to the side wall of the clamping plate; the slide rail and the horizontal plate are perpendicularly distributed, and the two clamping rollers are distributed in opposite directions.

[0010] The present invention is further configured such that: the driving plate is located inside the support frame, and a driving groove is provided on the side wall of the driving plate; the first clamping plate and the second clamping plate are both located inside the driving groove; a limiting rod is also rotatably connected inside the driving groove; a limiting groove is provided on the side wall of the first clamping plate; the limiting rod can be engaged in the limiting groove; and the bottom sides of the first clamping plate are rotatably connected to the inner wall of the support frame.

[0011] The invention is further configured such that: the bottom two sides of the second clamping plate are rotatably connected to the inner wall of the support frame, the inner wall of the drive groove is rotatably connected to the two sides of the second clamping plate, and a spring is also provided between the first clamping plate and the second clamping plate.

[0012] The invention is further configured such that: the telescopic end of the telescopic cylinder passes through the bottom of the support frame and is connected to the telescopic block; guide rods are symmetrically arranged at the bottom of the support frame, and the telescopic block can be fitted onto the guide rods; the rotating disk is volute-shaped, and the rotating disk is symmetrically distributed on both sides of the telescopic block; an arc-shaped groove is formed on the side wall of the rotating disk, and the end of the movable rod away from the telescopic block can slide in the corresponding arc-shaped groove; one end of the rotating column passes through the corresponding side wall of the support frame and is connected to the rotating disk, and the other end passes through another corresponding side wall of the support frame and is connected to the connecting rod; the rotating column and the connecting rod are vertically distributed.

[0013] The invention is further configured such that: the leveling component includes an extension frame, a micro motor disposed within the extension frame, a worm gear disposed at the output end of the micro motor, a connector disposed at the end of the worm gear away from the micro motor, a leveling column disposed at the end of the connector away from the worm gear, a worm wheel meshing with the worm gear, a turntable eccentrically disposed on the top of the worm wheel, a rotating column disposed on one side of the turntable, and a tension strip rotatably connected to one end of the rotating column; the extension frame is also provided with a vertical block, a square frame is provided on one side of the vertical block, a sliding block is slidably disposed within the square frame, the output end of the micro motor passes through the side wall of the extension frame and is connected to the worm gear, the end of the worm gear away from the micro motor passes through the vertical block and is connected to the connector, and the leveling column passes through the side wall of the sliding block.

[0014] The present invention is further configured such that: the connector includes a first main board, a movable plate disposed on one side of the first main board, and a second main board disposed on the side of the movable plate away from the first main board; the first main board and the second main board have the same shape and structure and are relatively distributed, one side of the first main board is protruding, the movable plate is cross-shaped, and both sides are recessed, the protruding surface of the first main board can be engaged with the corresponding recessed surface of the movable plate, and the protruding surface of the second main board can be engaged with the other corresponding recessed surface of the movable plate.

[0015] The present invention is further configured such that: the top of the turntable is provided with an annular groove, a sliding pin is slidably disposed in the annular groove, the rotating column is Z-shaped, the middle part of the rotating column is rotatably connected to the top of the extension frame, one end of the rotating column is connected to the sliding pin, the other end is rotatably connected to the tension strip, and the end of the tension strip away from the rotating column is rotatably connected to the side wall of the sliding block.

[0016] A spinning method for processing wind turbine components, using the spinning equipment for processing wind turbine components as described above, includes the following steps:

[0017] S1. The staff first assembles the mold, then clamps the metal billet onto the mold, and finally starts the spinning unit to rotate the metal billet while bending the outer ring of the metal billet.

[0018] S2. During the operation of S1, the lifting cylinder is activated, pushing the support plate closer to the metal billet. At this time, the first clamping plate and the second clamping plate are located on both sides of the metal billet, respectively. Then, the drive cylinder is activated, pulling the drive plate down, causing the drive plate to rotate within the support frame. This causes the first clamping plate to first adhere to one side of the metal billet, completing the initial positioning of the metal billet plane. The second clamping plate then adheres to the other side of the metal billet, pressing the metal billet towards the first clamping plate. This causes the first and second clamping plates to limit and adhere the metal billet, placing the metal billet in its initial position before offset. Finally, the lifting cylinder is activated again, causing the first and second clamping plates to repeatedly rise and fall.

[0019] S3. When the metal billet is spun to near the bending point, the spinning unit stops. At this time, compressive stress is formed in the transition zone, which will cause circumferential instability and wrinkling. Therefore, the telescopic cylinder is activated, pushing the telescopic block down, so that the corresponding movable rod is displaced synchronously, and drives the corresponding rotating disk to rotate in the opposite direction. Thus, the rotating column drives the connecting rod and the leveling component to rotate and displace in the opposite direction synchronously, so that the two leveling components are located on both sides of the metal billet and fit against both sides of the metal billet's annular belt. Then, by driving the leveling components, the two sides of the metal billet's annular belt are rotated and leveled. During this process, the spinning unit is activated, driving the metal billet to rotate in the opposite direction.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] (1) By designing the correction unit, the metal billet is corrected and positioned. The first clamping plate first adheres to one side of the metal billet to complete the initial positioning of the metal billet plane. The second clamping plate then adheres to the other side of the metal billet and squeezes the metal billet toward the first clamping plate. This allows the first and second clamping plates to limit and adhere the metal billet, so that the metal billet is in the initial position before the offset. This avoids the problem of the metal billet shifting at an angle during the rotation caused by bending, thereby improving the accuracy and stability of spinning and ensuring the uniformity of deformation in the subsequent spinning process.

[0022] (2) By designing the leveling unit, the transition zone (the annular band not reached by spinning) is rotated and flattened in the opposite direction, which avoids the formation of compressive stress in the transition zone (the annular band not reached by spinning), which leads to circumferential instability and wrinkling (similar to "lotus leaf edge"). This is beneficial to the appearance quality of the ventilation duct, ensures the uniformity of the wall thickness, and improves the structural strength and airtightness of the product.

[0023] (3) By reversing the metal billet and placing the two leveling parts on both sides of the metal billet and fitting them with the two sides of the metal billet ring belt, the purpose of initially leveling the metal billet transition zone has been achieved; by starting the leveling parts, the displacement and rotation of the leveling parts can be realized, thereby achieving the purpose of secondary rotation leveling of the metal billet transition zone, and increasing the range of leveling the metal billet transition zone through displacement. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the spinning equipment for processing fan parts according to the present invention.

[0025] Figure 2 This is a schematic diagram of the overall structure of the spinning unit in this invention.

[0026] Figure 3 This is a side view of the spinning unit in this invention.

[0027] Figure 4 This is a schematic diagram of the overall structure of the correction unit in this invention.

[0028] Figure 5 This is an exploded view of the correction unit in this invention.

[0029] Figure 6 This is an exploded view of the drive board and the first clamping plate in this invention.

[0030] Figure 7 This is a schematic diagram of the overall structure of the leveling unit and lifting assembly in this invention.

[0031] Figure 8 This is a schematic diagram of the overall structure of the leveling unit in this invention.

[0032] Figure 9 This is an exploded view of the leveling unit in this invention.

[0033] Figure 10 This is a schematic diagram of the overall structure of the leveling component in this invention.

[0034] Explanation of reference numerals in the attached drawings: 1. Spinning unit; 11. Worktable; 12. Fixed box; 121. Slide rail; 122. Electric slider; 123. Horizontal plate; 124. Clamping cylinder; 125. Clamping plate; 126. Clamping roller; 13. Rotary motor; 14. Rotary shaft; 15. Electric three-jaw chuck; 16. Drive assembly; 17. Abutment seat; 18. Robotic arm; 19. Spinning roller;

[0035] 2. Correction unit; 21. Bearing plate; 22. Lifting cylinder; 23. Bearing frame; 24. Drive cylinder; 25. Drive plate; 251. Drive groove; 252. Limiting rod; 26. First clamping plate; 261. Limiting groove; 27. Second clamping plate; 28. Spring;

[0036] 3. Leveling unit; 31. Support frame; 311. Guide rod; 32. Telescopic cylinder; 33. Telescopic block; 34. Movable rod; 35. Rotary disk; 351. Arc groove; 36. Rotating column; 37. Connecting rod; 38. Adjusting cylinder; 39. Leveling component; 391. Extension frame; 3911. Vertical block; 3912. Square frame; 3913. Sliding block; 392. Micro motor; 393. Worm gear; 394. Connecting component; 3941. First main board; 3942. Movable plate; 3943. Second main board; 395. Leveling column; 396. Worm gear; 397. Turntable; 3971. Annular groove; 3972. Sliding pin; 398. Rotating column; 399. Tension bar;

[0037] 4. Lifting assembly. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0039] Please see Figures 1-10 The present invention provides the following technical solutions:

[0040] Example 1, see Figures 1-10 A spinning equipment for processing fan parts includes a spinning unit 1, a correction unit 2 on the top of the spinning unit 1, and a leveling unit 3 above the correction unit 2.

[0041] The spinning unit 1 applies pressure to the surface of the billet through the spinning roller 19, which moves along a specific trajectory, causing the metal billet to gradually undergo plastic deformation during rotation. After multiple spinning operations, the wall thickness and shape of the billet are gradually adjusted to meet the design requirements of the ventilation duct, ultimately forming a smooth, uniform, and dimensionally accurate axisymmetric hollow ventilation duct. This process not only improves production efficiency but also ensures the quality and performance of the ventilation duct, meeting the stringent requirements of the fan system for ventilation ducts.

[0042] The function of the correction unit 2 is to perform correction and positioning processing on the metal billet. The first clamping plate 26 first adheres to one side of the metal billet to complete the initial positioning of the metal billet plane. The second clamping plate 27 then adheres to the other side of the metal billet, pressing the metal billet towards the first clamping plate 26. This causes the first clamping plate 26 and the second clamping plate 27 to limit and adhere the metal billet, so that the metal billet is in the initial position before the offset. This avoids the problem of angular offset of the metal billet during the rotation caused by bending, thereby improving the accuracy and stability of spinning and ensuring the uniformity of deformation in subsequent spinning processes.

[0043] The function of leveling unit 3 is to perform reverse rotation and flattening treatment on the transition zone (the annular band not reached by spinning), avoiding the formation of compressive stress in the transition zone (the annular band not reached by spinning), which would lead to circumferential instability and wrinkling (similar to "lotus leaf edge"). This is beneficial to the appearance quality of the ventilation duct, ensures the uniformity of the wall thickness, and improves the structural strength and airtightness of the product.

[0044] See Figures 1-3 Specifically, the spinning unit 1 includes a worktable 11, a fixed box 12 disposed on the top of the worktable 11, a rotary motor 13 disposed at one end of the fixed box 12, a rotary shaft 14 disposed at the output end of the rotary motor 13, an electric three-jaw chuck 15 disposed at the end of the rotary shaft 14 away from the rotary motor 13, a drive assembly 16 disposed above the worktable 11, an abutment seat 17 disposed on the top of the drive assembly 16, a robotic arm 18 disposed on one side of the abutment seat 17, and a spinning roller 19 rotatably connected to the execution end of the robotic arm 18; both ends of the rotary shaft 14 penetrate through the side wall of the fixed box 12, one end of the rotary shaft 14 is connected to the output end of the rotary motor 13, and the other end is connected to the electric three-jaw chuck 15.

[0045] The process involves starting the electric three-jaw chuck 15 to clamp the mold, then clamping the metal billet onto the mold. Next, the drive assembly 16 is started, causing the abutment seat 17 to engage with the mold and limit the position of the metal billet. Finally, the rotary motor 13 is started, and the metal billet is rotated via the rotary shaft 14 and the electric three-jaw chuck 15.

[0046] During this process, the robotic arm 18 also applies pressure to the surface of the metal billet with the spinning roller 19 and moves along a specific trajectory, so that the metal billet gradually undergoes plastic deformation during rotation, thereby achieving the purpose of spinning.

[0047] It should be noted that the drive assembly 16 has all the parts for horizontal displacement and the drive power supply; these will not be described in detail here. At the same time, a bearing seat is provided inside the abutment seat 17, so when the metal billet rotates, the contact end between the metal billet and the abutment seat 17 will also rotate without interference.

[0048] See Figures 1-3 Furthermore, a slide rail 121 is provided on the side wall of the fixed box 12, and an electric slider 122 is slidably mounted on the slide rail 121. A horizontal plate 123 is provided on the side of the electric slider 122 away from the slide rail 121. A clamping cylinder 124 is provided at one end of the horizontal plate 123. A clamping plate 125 is symmetrically arranged at the clamping end of the clamping cylinder 124. A clamping roller 126 is rotatably connected to the side wall of the clamping plate 125. The slide rail 121 and the horizontal plate 123 are perpendicularly distributed, and the two clamping rollers 126 are distributed in opposite directions.

[0049] When bending the outer ring of the metal billet, the electric slider 122 is activated, which drives the horizontal plate 123 to slide on the slide rail 121, so that the two clamping rollers 126 are located on both sides of the metal billet respectively; then the clamping cylinder 124 is activated, which drives the two clamping plates 125 to move closer to each other. At this time, the two clamping rollers 126 can also squeeze the two sides of the metal billet, thereby causing the outer ring of the metal billet to deform and bend.

[0050] See Figures 4-6 Specifically, the correction unit 2 includes a support plate 21, lifting cylinders 22 symmetrically arranged below the support plate 21, a support frame 23 arranged on the top of the support plate 21, a drive cylinder 24 arranged on one side of the support frame 23, a drive plate 25 arranged at the extension end of the drive cylinder 24, a first clamping plate 26 arranged in the drive plate 25, and a second clamping plate 27 arranged on one side of the first clamping plate 26.

[0051] The process involves assembling the mold, attaching the metal billet to it, and then starting the spinning unit 1 to rotate the metal billet (disc-shaped) while bending its outer ring.

[0052] During the operation of the spinning unit 1, the lifting cylinder 22 is activated, pushing the bearing plate 21 closer to the metal blank. At this time, the first clamping plate 26 and the second clamping plate 27 are located on both sides of the metal blank. Then, the drive cylinder 24 is activated, pulling the drive plate 25 down, causing the drive plate 25 to rotate within the bearing frame 23. This causes the first clamping plate 26 to first adhere to one side of the metal blank, completing the initial positioning of the metal blank plane. The second clamping plate 27 then adheres to the other side of the metal blank, pressing the metal blank towards the first clamping plate 26. This causes the first clamping plate 26 and the second clamping plate 27 to limit and adhere the metal blank, placing the metal blank in its initial position before offset. Finally, the lifting cylinder 22 is activated again, causing the first clamping plate 26 and the second clamping plate 27 to repeatedly rise and fall. This avoids the problem of angular offset of the metal blank during rotation caused by bending, thereby improving the accuracy and stability of spinning and ensuring the uniformity of deformation in subsequent spinning processes.

[0053] See Figures 7-10 Specifically, the leveling unit 3 includes a support frame 31, a telescopic cylinder 32 disposed on the top of the support frame 31, a telescopic block 33 disposed on the telescopic end of the telescopic cylinder 32, movable rods 34 symmetrically disposed on both sides of the telescopic block 33 in the M direction, a rotating disk 35 disposed on the end of the movable rod 34 away from the telescopic block 33, a rotating column 36 disposed on the side of the rotating disk 35 away from the movable rod 34, a connecting rod 37 disposed on the end of the rotating column 36 away from the rotating disk 35, an adjusting cylinder 38 disposed on the side wall of the connecting rod 37, and a leveling component 39 rotatably connected to the telescopic end of the adjusting cylinder 38; the end of the connecting rod 37 away from the rotating column 36 is rotatably connected to the leveling component 39.

[0054] When the metal billet is spun to near the bending point, the spinning unit 1 stops. At this time, compressive stress is formed in the transition zone (the annular band not reached by the spinning), which can cause circumferential instability and wrinkling (similar to "ruffles"). Therefore, the telescopic cylinder 32 is activated, pushing the telescopic block 33 downward, so that the corresponding movable rod 34 is displaced synchronously, and the corresponding rotating disk 35 is rotated in the opposite direction. Thus, the rotating column 36 drives the connecting rod 37 and the leveling component 39 to rotate and displace synchronously in the opposite direction, so that the two leveling components 39 are located on both sides of the metal billet and are in contact with both sides of the annular band of the metal billet. Then, by driving the leveling components 39, the two sides of the annular band of the metal billet are rotated and leveled. During this process, the spinning unit 1 is activated, driving the metal billet to rotate in the opposite direction. This avoids the problem of compressive stress forming in the transition zone (the annular band not reached by the spinning), which can lead to circumferential instability and wrinkling (similar to "ruffles"). This is beneficial to the appearance quality of the ventilation duct, ensures the uniformity of the wall thickness, and improves the structural strength and airtightness of the product.

[0055] By adjusting the start of cylinder 38, the leveling component 39 can be driven to adjust its angle, so that the execution end of the leveling component 39 is always perpendicular to the surface of the metal billet, thereby ensuring the flatness of the surface of the metal billet.

[0056] By reversing the metal billet and positioning the two leveling components 39 on both sides of the metal billet and fitting them against the sides of the annular belt of the metal billet, the purpose of initially leveling the transition zone of the metal billet has been achieved. Then, by activating the leveling component 39, the displacement and rotation of the leveling component 39 can be realized, thereby achieving the purpose of secondary rotational leveling of the transition zone of the metal billet, and increasing the range of leveling the transition zone of the metal billet through displacement.

[0057] It should be noted that a lifting assembly 4 is also provided on the top of the fixed box 12. The lifting assembly 4 can lift the leveling unit 3. The lifting assembly 4 has all the parts and drive power for lifting and displacement. It will not be described in detail here.

[0058] See Figures 4-6 Furthermore, the drive plate 25 is located inside the support frame 23, and a drive groove 251 is provided on the side wall of the drive plate 25. The first clamping plate 26 and the second clamping plate 27 are both located inside the drive groove 251. A limit rod 252 is also rotatably connected inside the drive groove 251. A limit groove 261 is provided on the side wall of the first clamping plate 26, and the limit rod 252 can be engaged in the limit groove 261. The bottom sides of the first clamping plate 26 are rotatably connected to the inner wall of the support frame 23.

[0059] See Figures 4-6 Furthermore, the bottom sides of the second clamping plate 27 are rotatably connected to the inner wall of the support frame 23, the inner wall of the drive groove 251 is rotatably connected to the two sides of the second clamping plate 27, and a spring 28 is also provided between the first clamping plate 26 and the second clamping plate 27.

[0060] In this process, the drive cylinder 24 is activated, pulling the drive plate 25 downward, causing the drive plate 25 to rotate within the support frame 23. During this process, the limiting rod 252 descends simultaneously, moving away from the limiting groove 261, causing the limiting rod 252 to press the first clamping plate 26 to rotate. This causes the first clamping plate 26 to first adhere to one side of the metal blank, completing the initial positioning of the metal blank plane. Subsequently, the drive plate 25 also drives the second clamping plate 27 to rotate, adhering to the other side of the metal blank, pressing the metal blank towards the first clamping plate 26. This causes the first clamping plate 26 and the second clamping plate 27 to limit and adhere the metal blank, placing the metal blank in its initial position before offset. Finally, the lifting cylinder 22 is driven again, causing the first clamping plate 26 and the second clamping plate 27 to repeatedly rise and fall. This avoids the problem of angular offset of the metal blank during rotation caused by bending, thereby improving the accuracy and stability of spinning forming and ensuring the uniformity of deformation in subsequent spinning processes.

[0061] The spring 28 allows the first clamping plate 26 and the second clamping plate 27 to return to their initial positions.

[0062] Example 2: While the technical solution of Example 1 solves the problem of angular displacement of metal billets during rotation caused by bending in the prior art, it does not address the issue of compressive stress forming in the transition zone (the annular band not reached by spinning), leading to circumferential instability and wrinkling (similar to "ruffle edges"). Therefore, the following solution is proposed:

[0063] See Figures 7-10 Furthermore, the telescopic end of the telescopic cylinder 32 passes through the bottom of the support frame 31 and is connected to the telescopic block 33. The bottom of the support frame 31 is also symmetrically provided with guide rods 311, and the telescopic block 33 can be sleeved on the guide rods 311. The rotating disk 35 is volute-shaped, and the rotating disk 35 is symmetrically distributed on both sides of the telescopic block 33. The side wall of the rotating disk 35 is provided with an arc groove 351, and the end of the movable rod 34 away from the telescopic block 33 can slide in the corresponding arc groove 351. One end of the rotating column 36 passes through the corresponding side wall of the support frame 31 and is connected to the rotating disk 35, and the other end passes through the other corresponding side wall of the support frame 31 and is connected to the connecting rod 37. The rotating column 36 and the connecting rod 37 are vertically distributed.

[0064] In this process, the telescopic cylinder 32 is activated, pushing the telescopic block 33 downward along the direction of the guide rod 311. This causes the corresponding movable rod 34 to move synchronously and slide within the corresponding arc-shaped groove 351, driving the corresponding rotating disk 35 to rotate in the opposite direction. This, in turn, drives the connecting rod 37 and the leveling component 39 to rotate synchronously in opposite directions via the rotating column 36. This allows the two leveling components 39 to be positioned on both sides of the metal blank and to fit against the sides of the annular strip of the metal blank. By driving the leveling components 39, the sides of the annular strip of the metal blank are rotated and leveled. During this process, the spinning unit 1 is activated, causing the metal blank to rotate in the opposite direction. This avoids the formation of compressive stress in the transition zone (the annular strip not reached by spinning), which could lead to circumferential instability and wrinkling (similar to "lotus leaf edges"). This is beneficial to the appearance quality of the ventilation duct, ensures the uniformity of the wall thickness, and improves the structural strength and airtightness of the product.

[0065] See Figures 7-10 Furthermore, the leveling component 39 includes an extension frame 391, a micro motor 392 disposed within the extension frame 391, a worm gear 393 disposed at the output end of the micro motor 392, a connector 394 disposed at the end of the worm gear 393 away from the micro motor 392, a leveling column 395 disposed at the end of the connector 394 away from the worm gear 393, a worm wheel 396 meshing with the worm gear 393 for transmission, a turntable 397 eccentrically disposed on the top of the worm wheel 396, and a rotating column 398 disposed on one side of the turntable 397. And a tension strip 399 rotatably connected to one end of the rotating column 398; the extension frame 391 is also provided with a vertical block 3911, a square frame 3912 is provided on one side of the vertical block 3911, a sliding block 3913 is slidably provided in the square frame 3912, the output end of the micro motor 392 passes through the side wall of the extension frame 391 and is connected to the worm gear 393, the end of the worm gear 393 away from the micro motor 392 passes through the vertical block 3911 and is connected to the connector 394, and the leveling column 395 passes through the side wall of the sliding block 3913.

[0066] See Figures 7-10 Furthermore, the connector 394 includes a first main board 3941, a movable plate 3942 disposed on one side of the first main board 3941, and a second main board 3943 disposed on the side of the movable plate 3942 away from the first main board 3941; the first main board 3941 and the second main board 3943 have the same shape and structure and are relatively distributed. One side of the first main board 3941 is raised, and the movable plate 3942 is cross-shaped with both sides recessed. The raised surface of the first main board 3941 can be engaged with the corresponding recessed surface of the movable plate 3942, and the raised surface of the second main board 3943 can be engaged with the other corresponding recessed surface of the movable plate 3942.

[0067] See Figures 7-10Furthermore, the top of the turntable 397 is provided with an annular groove 3971, and a sliding pin 3972 is slidably disposed in the annular groove 3971. The rotating column 398 is Z-shaped, and the middle part of the rotating column 398 is rotatably connected to the top of the extension frame 391. One end of the rotating column 398 is connected to the sliding pin 3972, and the other end is rotatably connected to the tension strip 399. The end of the tension strip 399 away from the rotating column 398 is rotatably connected to the side wall of the sliding block 3913.

[0068] When the micro motor 392 starts, it drives the worm gear 393 to rotate. On the one hand, the first main board 3941, the movable plate 3942 and the second main board 3943 will rotate synchronously, and drive the leveling column 395 to rotate, thereby achieving the purpose of leveling the metal billet transition area by the self-rotation of the leveling column 395.

[0069] On the other hand, the worm wheel 396 meshing with the worm 393 will also rotate, driving the turntable 397 to rotate eccentrically, causing the sliding pin 3972 to slide in the annular groove 3971, and carrying the rotating column 398 to rotate. This causes the rotating column 398 to pull the sliding block 3913 to move within the square frame 3912 through the tension bar 399, thereby realizing the displacement of the leveling column 395. This achieves the purpose of increasing the leveling range while the leveling column 395 rotates and levels itself. During this process, the first main plate 3941, the movable plate 3942, and the second main plate 3943 will all slide and misalign relative to each other, which does not affect the rotation of the leveling column 395 by the first main plate 3941, the movable plate 3942, and the second main plate 3943.

[0070] Example 3: A spinning method for processing fan parts, using the spinning equipment for processing fan parts as described above, includes the following steps:

[0071] S1. The staff first assembles the mold, then clamps the metal billet onto the mold, and finally starts the spinning unit 1 to rotate the metal billet (disc-shaped) while bending the outer ring of the metal billet (disc-shaped).

[0072] S2. During the operation of S1, the lifting cylinder 22 is activated, pushing the bearing plate 21 closer to the metal billet. At this time, the first clamping plate 26 and the second clamping plate 27 are located on both sides of the metal billet. Then, the drive cylinder 24 is activated, pulling the drive plate 25 down, causing the drive plate 25 to rotate within the bearing frame 23. This causes the first clamping plate 26 to first adhere to one side of the metal billet, completing the initial positioning of the metal billet plane. The second clamping plate 27 then adheres to the other side of the metal billet, squeezing the metal billet towards the first clamping plate 26. This causes the first clamping plate 26 and the second clamping plate 27 to limit and adhere the metal billet, so that the metal billet is in the initial position before the offset. Finally, the lifting cylinder 22 is activated again, causing the first clamping plate 26 and the second clamping plate 27 to repeatedly rise and fall.

[0073] S3. When the metal billet is spun to near the bending point, the spinning unit 1 stops. At this time, the transition zone (the annular band not reached by the spinning) forms compressive stress, which will cause circumferential instability and wrinkling (similar to "ruffles"). Therefore, the telescopic cylinder 32 is activated, pushing the telescopic block 33 to move down, so that the corresponding movable rod 34 moves synchronously and drives the corresponding rotating disk 35 to rotate in the opposite direction. Thus, the rotating column 36 drives the connecting rod 37 and the leveling component 39 to rotate and move synchronously in the opposite direction, so that the two leveling components 39 are located on both sides of the metal billet and fit against both sides of the annular band of the metal billet. Then, by driving the leveling component 39, the two sides of the annular band of the metal billet are rotated and leveled. During this process, the spinning unit 1 is activated, driving the metal billet to rotate in the opposite direction.

[0074] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

Claims

1. A spinning apparatus for processing a fan accessory, characterized by: The utility model relates to a spinning unit (1), the top of spinning unit (1) is provided with the deviation rectifying unit (2), the top of deviation rectifying unit (2) is provided with the leveling unit (3); The deviation rectifying unit (2) includes a bearing plate (21), a lifting cylinder (22) symmetrically arranged below the bearing plate (21), a bearing frame (23) arranged on the top of the bearing plate (21), a drive cylinder (24) arranged on one side of the bearing frame (23), a drive plate (25) arranged on the telescopic end of the drive cylinder (24), a first clamping plate (26) arranged in the drive plate (25), and a second clamping plate (27) arranged on one side of the first clamping plate (26); The leveling unit (3) includes a support frame (31), a telescopic cylinder (32) arranged on the top of the support frame (31), a telescopic block (33) arranged on the telescopic end of the telescopic cylinder (32), a movable rod (34) symmetrically arranged on both sides of the telescopic block (33) in the axial direction, a rotating disc (35) arranged on the end of the movable rod (34) away from the telescopic block (33), a rotating column (36) arranged on the side of the rotating disc (35) away from the movable rod (34), a connecting rod (37) arranged on the end of the rotating column (36) away from the rotating disc (35), an adjusting cylinder (38) arranged on the side wall of the connecting rod (37), and a leveling piece (39) rotatably connected to the telescopic end of the adjusting cylinder (38); one end of the connecting rod (37) away from the rotating column (36) is rotatably connected to the leveling piece (39); The drive plate (25) is located in the bearing frame (23), a drive groove (251) is formed in the side wall of the drive plate (25), and the first clamping plate (26) and the second clamping plate (27) are located in the drive groove (251); A limiting rod (252) is rotatably connected in the drive groove (251), a limiting groove (261) is formed in the side wall of the first clamping plate (26), the limiting rod (252) can be fitted and clamped in the limiting groove (261), and the bottom of the first clamping plate (26) is rotatably connected to the inner wall of the bearing frame (23) on both sides; The bottom of the second clamping plate (27) is rotatably connected to the inner wall of the bearing frame (23) on both sides, the inner wall of the drive groove (251) is rotatably connected to both sides of the second clamping plate (27), and a spring (28) is arranged between the first clamping plate (26) and the second clamping plate (27). ​ 2. The spinning apparatus for processing a fan accessory according to claim 1, characterized by: The spinning unit (1) comprises a workbench (11), a fixed box (12) arranged on the top of the workbench (11), a rotating motor (13) arranged at one end of the fixed box (12), a rotating shaft (14) arranged at the output end of the rotating motor (13), an electric three-jaw chuck (15) arranged at the end of the rotating shaft (14) away from the rotating motor (13), a driving assembly (16) arranged above the workbench (11), an abutment seat (17) arranged on the top of the driving assembly (16), a mechanical arm (18) arranged on one side of the abutment seat (17), and a spinning roller (19) rotatably connected to the execution end of the mechanical arm (18). Both ends of the rotating shaft (14) penetrate the side wall of the fixed box (12), one end of the rotating shaft (14) is connected to the output end of the rotating motor (13), and the other end is connected to the electric three-jaw chuck (15).

3. The spinning apparatus for processing a fan accessory according to claim 2, characterized in that: The side wall of the fixed box (12) is also provided with a sliding rail (121), and an electric sliding block (122) is slidably arranged on the sliding rail (121). The side of the electric sliding block (122) away from the sliding rail (121) is provided with a horizontal plate (123), one end of the horizontal plate (123) is provided with a clamping air cylinder (124), and the clamping end of the clamping air cylinder (124) is symmetrically provided with a clamping plate (125). The side wall of the clamping plate (125) is rotatably connected with a clamping roller (126). The sliding rail (121) and the horizontal plate (123) are vertically distributed, and the two clamping rollers (126) are oppositely distributed.

4. The spinning apparatus for processing a fan accessory according to claim 1, wherein: The telescopic end of the telescopic cylinder (32) penetrates the bottom of the support frame (31) and is connected to the telescopic block (33). The bottom of the support frame (31) is also symmetrically provided with a guide rod (311), and the telescopic block (33) can be sleeved on the guide rod (311). The rotating disc (35) is in the shape of a volute, and the rotating disc (35) is oppositely symmetrically distributed about the two sides of the telescopic block (33). An arc-shaped groove (351) is formed in the side wall of the rotating disc (35), and one end of the movable rod (34) away from the telescopic block (33) can slide in the corresponding arc-shaped groove (351). One end of the rotating column (36) penetrates the corresponding side wall of the support frame (31) and is connected to the rotating disc (35), and the other end penetrates the other corresponding side wall of the support frame (31) and is connected to the connecting rod (37). The rotating column (36) and the connecting rod (37) are vertically distributed.

5. The spinning apparatus for processing a fan accessory according to claim 1, wherein: The flattening piece (39) comprises an extension frame (391), a micro motor (392) arranged in the extension frame (391), a worm (393) arranged at the output end of the micro motor (392), a connecting piece (394) arranged at the end of the worm (393) away from the micro motor (392), a flattening column (395) arranged at the end of the connecting piece (394) away from the worm (393), a worm wheel (396) in meshing transmission with the worm (393), a rotating disc (397) eccentrically arranged at the top of the worm wheel (396), a rotating column (398) arranged at one side of the rotating disc (397), and a stretching strip (399) rotationally connected to one end of the rotating column (398). The extension frame (391) is further provided with a vertical block (3911), one side of the vertical block (3911) is provided with a square frame (3912), a sliding block (3913) is slidingly arranged in the square frame (3912), the output end of the micro motor (392) penetrates through the side wall of the extension frame (391) and is connected to the worm (393), one end of the worm (393) away from the micro motor (392) penetrates through the vertical block (3911) and is connected to the connecting piece (394), and the flattening column (395) penetrates through the side wall of the sliding block (3913).

6. The spinning apparatus for processing a fan accessory according to claim 5, wherein: The connecting piece (394) comprises a first main plate (3941), a movable plate (3942) arranged at one side of the first main plate (3941), and a second main plate (3943) arranged at the side of the movable plate (3942) away from the first main plate (3941). The shapes of the first main plate (3941) and the second main plate (3943) are equal and oppositely distributed, one side of the first main plate (3941) is protruded, the movable plate (3942) is cross-shaped and both sides are recessed, the protruded surface of the first main plate (3941) can be matched and clamped in the corresponding recessed surface of the movable plate (3942), and the protruded surface of the second main plate (3943) can be matched and clamped in the other corresponding recessed surface of the movable plate (3942).

7. The spinning apparatus for processing a fan accessory according to claim 6, wherein: The top of the rotating disc (397) is further provided with a ring groove (3971), a sliding pin (3972) is slidingly arranged in the ring groove (3971), the rotating column (398) is Z-shaped, the middle part of the rotating column (398) is rotationally connected to the top of the extension frame (391), one end of the rotating column (398) is connected to the sliding pin (3972), the other end is rotationally connected to the stretching strip (399), and one end of the stretching strip (399) away from the rotating column (398) is rotationally connected to the side wall of the sliding block (3913).

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