A multi-specification hub integrated spinning forming device

Abstract

This invention provides an integrated spinning forming device for multi-specification wheel hubs, including a top plate, a base, and a support frame. A support cylinder is rotatably connected to the base via a bottom support. Multiple inner support blocks are circumferentially arranged on its upper part, and a position-adjusting base is located on its inner side. A fifth push-pull cylinder drives its lifting and lowering, causing the inner support blocks to converge or expand. A pressing plate is located above the support cylinder and connected to the first push-pull cylinder via a second transmission rod, cooperating with the support cylinder to clamp the wheel hub blank. A synchronous drive assembly drives the support cylinder and the pressing plate to rotate synchronously. A spinning assembly is located on one side of the base and performs rim forming on the rotating blank. During processing, the fifth push-pull cylinder synchronously adjusts the position of the inner support blocks. This invention achieves high-precision, high-flexibility integrated spinning forming of multi-specification wheel hub blanks through adaptive inner support, synchronous rotation, and dynamic support coordinated control.

Description

Technical Field

[0001] This invention relates to the field of metal plastic forming technology, and more specifically, to a multi-specification wheel hub integrated spinning forming device. Background Technology

[0002] In the wheel manufacturing industry, spinning technology has been widely used in the production of aluminum alloy wheels due to its advantages such as lightweight, high strength and toughness, and high material utilization. Traditional spinning equipment is usually designed for single-specification wheel hubs, and its clamping mechanism and support structure lack adaptability, making it difficult to accommodate wheel hub blanks with different inner diameters or spoke structures. This results in the need to change molds or adjust tooling when changing designs, which seriously affects production efficiency and flexibility. In addition, during the spinning process, the rim area is prone to defects such as bulging and collapse due to the intense plastic flow of the material. Without dynamic internal support, the forming accuracy and product consistency will be significantly reduced.

[0003] While some existing technologies attempt to incorporate adjustable internal support structures, they often suffer from problems such as asynchronous adjustment, delayed response, or insufficient support rigidity, failing to match the wheel hub deformation requirements in real time during the spinning process. Therefore, there is an urgent need for a multi-specification integrated spinning forming device that combines adaptive clamping, dynamic internal support, and synchronous drive to overcome the bottlenecks in versatility, forming quality, and automation levels of existing technologies. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-specification wheel hub integrated spinning forming device, which aims to solve the problems mentioned in the background art.

[0005] This invention is implemented as follows: a multi-specification integrated wheel hub spinning forming device, comprising a top plate, a base, and a support frame fixed between the two, and further comprising:

[0006] A support cylinder is rotatably connected to a base via a bottom support. Multiple inner support blocks are slidably provided on the upper side of the support cylinder. A position fine-tuning base that cooperates with the inner support blocks is slidably provided on the inner side of the support cylinder. A fifth push-pull cylinder is fixed on the base. The end of the telescopic spindle of the fifth push-pull cylinder is rotatably connected to the position fine-tuning base and is used to drive the position fine-tuning base to rise and fall so as to drive the multiple inner support blocks to spread outward or gather inward.

[0007] A pressing plate is located above the support cylinder. A second transmission rod is fixed on the top of the pressing plate. A second transmission sleeve is slidably sleeved on the second transmission rod. The second transmission sleeve is rotatably connected to the top plate through a top support. A first push-pull cylinder is also fixed on the top of the top plate. The end of the telescopic spindle of the first push-pull cylinder is rotatably connected to the second transmission rod. The pressing plate and the support cylinder cooperate to clamp and fix the wheel hub blank. The inner support block provides auxiliary support to the inner side wall of the wheel hub blank.

[0008] The synchronous drive assembly is connected to both the second transmission sleeve and the support sleeve, and is used to drive the two to rotate synchronously to drive the wheel hub blank to rotate.

[0009] The spinning assembly is mounted on a base on one side of the support cylinder and is used to perform rim forming on the rotating wheel hub blank. When the spinning assembly is working, the fifth push-pull cylinder synchronously drives the inner support block to move through the position fine-tuning base.

[0010] Optionally, the pressing plate has a disc-shaped structure, the support cylinder has a cylindrical structure, and the lower part of the support cylinder is provided with a shrink cylinder. The shrink cylinder is rotatably connected to the cylinder body of the fifth push-pull cylinder and its lower end is rotatably connected to the bottom support. The cylinder body of the first push-pull cylinder is fixedly connected to the top plate through a cylinder body fixing frame. The first push-pull cylinder, the second transmission rod, and the fifth push-pull cylinder are arranged coaxially.

[0011] Optionally, the synchronous drive assembly includes a drive shaft rotatably mounted between the top plate and the base, with an upper input wheel and a lower input wheel fixed on the drive shaft respectively, and a first motor connected to the drive shaft fixed on the top plate; an upper output wheel is fixed on the second transmission sleeve, and a lower output wheel is fixed on the contraction sleeve of the support cylinder; the upper input wheel is connected to the upper output wheel through an upper transmission component, and the lower input wheel is connected to the lower output wheel through a lower transmission component.

[0012] Optionally, the top outer ring of the position fine-tuning base is an inclined structure, and the inner support block includes a horizontal part that is slidably connected to the side wall of the support cylinder and an inclined part that cooperates with the inclined structure; the inner end of the horizontal part of the inner support block is connected to the middle protrusion in the middle of the top of the support cylinder through a first spring, and a mechanical coupling rod is fixed on the middle protrusion. The mechanical coupling rod is slidably connected to the middle of the position fine-tuning base and is used to drive the position fine-tuning base to rotate synchronously with the support cylinder.

[0013] Optionally, the spinning assembly includes an outer open bracket, a second push-pull cylinder horizontally fixed on the base, the second push-pull cylinder being used to drive the outer open bracket to move relative to the hub blank; an inner open bracket is longitudinally slidably provided on the inner side of the outer open bracket, a third push-pull cylinder is vertically fixed on the inner side of the outer open bracket, the third push-pull cylinder being used to drive the inner open bracket to move longitudinally; a first transmission rod is vertically rotatably installed between the two branches of the outer open bracket, a second motor connected to the first transmission rod is fixed at the top of the outer open bracket, a first transmission sleeve is slidably provided on the prism section of the first transmission rod, a spinning wheel is fixed on the first transmission sleeve, and the two branches of the inner open bracket are rotatably connected to the two ends of the first transmission sleeve.

[0014] Optionally, when the spinning assembly is working, when the spinning wheel moves toward the hub blank, the fifth push-pull cylinder drives the inner support block to converge inward; when the spinning wheel moves away from the hub blank, the fifth push-pull cylinder drives the inner support block to spread outward.

[0015] Optionally, it also includes at least one set of auxiliary heating components, the auxiliary heating components including an annular heat source plate, an auxiliary column fixed on the base, a fourth push-pull cylinder horizontally fixed at the upper end of the auxiliary column, and the end of the telescopic spindle of the fourth push-pull cylinder being fixedly connected to the middle of the outer side of the annular heat source plate.

[0016] Optionally, a fixed plate is slidably provided in the middle of the lower part of the pressing plate, and a second spring is provided on the inner side of the pressing plate for elastically supporting the fixed plate; a plurality of limiting rods are slidably distributed around the lower outer ring of the pressing plate, and a third spring is provided on the inner side of the pressing plate for elastically supporting the limiting rods; a fixed rod is slidably provided in the pressing plate between the limiting rods and the fixed plate, and an end post is fixed to the inner end of the fixed rod; an annular cavity is opened on the outer side of the fixed plate, a first curved surface protrusion is provided on the upper part of the outer side of the annular cavity, a second curved surface protrusion is provided on the lower lower outer ring of the fixed plate, and an annular groove that mates with the annular flange is opened on the bottom of the pressing plate.

[0017] Optionally, when there is no external force, the lower surface of the fixed plate protrudes from the lower surface of the pressing plate, the first curved protrusion abuts against the upper part of the side of the end post near the fixed rod, and the end of the fixed rod away from the end post is separated from the limiting rod; in the clamping state, the annular flange is accommodated in the annular groove, the lower surface of the fixed plate is flush with the lower surface of the pressing plate, the second curved protrusion abuts against the lower part of the side of the end post away from the fixed rod and pushes the fixed rod to press against the limiting rod.

[0018] The multi-specification wheel hub integrated spinning forming device provided by the present invention has the following beneficial effects:

[0019] The self-adaptive adjustment of the inner support block is achieved by driving the position fine-tuning base through the fifth push-pull cylinder. Combined with the clamping action of the pressing plate and the support cylinder, it ensures stable fixation and precise positioning of wheel hub blanks of different specifications. The synchronous drive component ensures the synchronous rotation of the support cylinder and the wheel hub blank, while the spinning component dynamically adjusts the position of the inner support block during the spinning process to prevent material deformation. This achieves efficient, high-precision, and multi-specification integrated spinning forming, significantly improving the versatility and production efficiency of the equipment.

[0020] In summary, this invention achieves high-precision, high-flexibility integrated spinning forming of multi-specification wheel hub blanks through adaptive internal support, synchronous rotation, and dynamic support coordinated control.

[0021] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0023] Figure 1 This is a schematic diagram of the overall structure of the multi-specification wheel hub integrated spinning forming device provided in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 Another perspective structural diagram;

[0025] Figure 3 A schematic diagram of the top plate portion from a bottom angle in the multi-specification wheel hub integrated spinning forming device provided in an embodiment of the present invention;

[0026] Figure 4 for Figure 3 A partial isometric view;

[0027] Figure 5 This is a schematic diagram of the pressing plate and support cylinder in the multi-specification wheel hub integrated spinning forming device provided in an embodiment of the present invention.

[0028] Figure 6 for Figure 5 Axonometric drawing;

[0029] Figure 7 for Figure 6 A magnified structural diagram of part A in the middle;

[0030] Figure 8 This is a schematic diagram of another embodiment of the pressing plate in the multi-specification wheel hub integrated spinning forming device provided in this invention.

[0031] Figure 9 for Figure 8 Axonometric drawing;

[0032] Figure 10 for Figure 9 A magnified structural diagram of part B.

[0033] In the diagram: 1-Base, 2-Lower input wheel, 3-Drive shaft, 4-Support frame, 5-Top plate, 6-First motor, 7-First push-pull cylinder, 8-Cylinder body fixing frame, 9-Second motor, 10-Outer open bracket, 11-Spinning wheel, 12-First transmission sleeve, 13-Second push-pull cylinder, 14-Linear sliding track, 15-Guide ridge, 16-Third push-pull cylinder, 17-First transmission rod, 18-Inner open bracket, 19-Hub blank, 20-Annular heat source plate, 21-Fourth push-pull cylinder, 22-Auxiliary column, 23-Second transmission rod, 24-Pressing plate, 25 26-Bottom support, 27-Support cylinder, 28-Upper input wheel, 29-Upper output wheel, 30-Top support, 31-Second transmission sleeve, 32-Upper transmission component, 33-Lower transmission component, 34-Inner support block, 35-Position fine-tuning base, 36-First spring, 37-Middle protrusion, 38-Mechanical coupling rod, 39-Fifth push-pull cylinder, 40-Lower output wheel, 41-Fixed disc, 42-Limiting rod, 43-Second spring, 44-Fixed rod, 45-Annular flange, 46-End post, 47-First curved surface protrusion, 48-Second curved surface protrusion. Detailed Implementation

[0034] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0035] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0036] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0037] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0039] The following is a detailed description of an integrated spinning forming apparatus for multi-specification wheel hubs according to an embodiment of the present invention, with reference to the accompanying drawings.

[0040] Example 1

[0041] like Figure 1-7As shown, an embodiment of the present invention provides a multi-specification wheel hub integrated spinning forming device, including a top plate 5, a base 1, and a support frame 4 fixed therebetween, and further including:

[0042] The support cylinder 26 is rotatably connected to the base 1 via a bottom support 25. Multiple inner support blocks 33 are slidably distributed on the upper side of the support cylinder 26. A position fine-tuning base 34 that cooperates with the inner support blocks 33 is slidably provided on the inner side of the support cylinder 26. A fifth push-pull cylinder 38 is fixed on the base 1, and the end of the telescopic spindle is rotatably connected to the position fine-tuning base 34. The fifth push-pull cylinder 38 drives the multiple inner support blocks 33 to spread outward or gather inward by controlling the position fine-tuning base 34 to rise and fall.

[0043] The pressing plate 24 is located above the support cylinder 26. A second transmission rod 23 is fixed to the top of the pressing plate 24. A second transmission sleeve 30 is slidably sleeved on the second transmission rod 23. The second transmission sleeve 30 is rotatably connected to the top plate 5 through the top support 29. A first push-pull cylinder 7 with the end of the telescopic spindle rotatably connected to the second transmission rod 23 is also fixed to the top of the top plate 5. The pressing plate 24 and the support cylinder 26 cooperate to clamp and fix the wheel hub blank 19. The inner support block 33 is used to provide auxiliary support for the inner side wall of the wheel hub blank 19.

[0044] A synchronous drive assembly is connected to both the second transmission sleeve 30 and the support sleeve 26 and is used to drive them to rotate synchronously, thereby driving the hub blank 19 to rotate.

[0045] The spinning assembly is mounted on a base 1 on one side of the support cylinder 26. The spinning assembly is used to perform rim forming processing on the rotating wheel hub blank 19. When the spinning assembly is working, the fifth push-pull cylinder 38 synchronously drives the inner support block 33 to move through the position fine-tuning base 34.

[0046] In application, the fifth push-pull cylinder 38 drives the position fine-tuning base 34 to achieve adaptive adjustment of the inner support block 33. Combined with the clamping action of the pressing plate 24 and the support cylinder 26, it ensures stable fixation and precise positioning of wheel hub blanks 19 of different specifications. The synchronous drive component ensures the synchronous rotation of the support cylinder 26 and the wheel hub blank 19, while the spinning component dynamically adjusts the position of the inner support block 33 during the spinning process to prevent material deformation. This achieves efficient, high-precision, and multi-specification integrated spinning forming, significantly improving the equipment's versatility and production efficiency.

[0047] As an optimized implementation, the pressing plate 24 adopts a disc-shaped structure, and the support cylinder 26 adopts a cylindrical structure. The lower part of the support cylinder 26 is provided with a retractable cylinder rotatably connected to the cylinder body of the fifth push-pull cylinder 38. The lower end of the retractable cylinder is rotatably connected to a bottom support 25 fixed on the base 1. The structures of the bottom support 25 and the top support 29 are not limited; they only need to provide stable and prevent detachment of the retractable cylinder and the second transmission sleeve 30 during rotation.

[0048] The installation structure of the base 1, the support frame 4 and the top plate 5 can be arranged in a conventional manner. The cylinder body of the first push-pull cylinder 7 can be fixedly connected to the top plate 5 through the cylinder body fixing frame 8. The first push-pull cylinder 7, the second transmission rod 23 and the fifth push-pull cylinder 38 are arranged coaxially to meet the requirements of reliable spinning clamping.

[0049] The synchronous drive assembly includes a drive shaft 3 rotatably mounted between the top plate 5 and the base 1. An upper input wheel 27 and a lower input wheel 2 are fixed to the drive shaft 3. A first motor 6, connected to the drive shaft 3, is also fixed to the top plate 5. An upper output wheel 28 and a lower output wheel 39 are fixed to the second transmission sleeve 30 and the shrinking cylinder, respectively. The upper input wheel 27 is connected to the upper output wheel 28 via an upper transmission component 31, and the lower input wheel 2 is connected to the lower output wheel 39 via a lower transmission component 32, thereby achieving synchronous transmission between the second transmission sleeve 30 and the support cylinder 26. The upper input wheel 27, lower input wheel 2, upper output wheel 28, and lower output wheel 39 can be arranged accordingly, and can be pulleys, sprockets, etc. The upper transmission component 31 and lower transmission component 32 can be set as V-belts, chains, etc., without limitation.

[0050] In application, the use of a disc-shaped pressing plate 24 and a cylindrical support cylinder 26, combined with the coaxial arrangement of the first push-pull cylinder 7, the second transmission rod 23 and the fifth push-pull cylinder 38, ensures the coaxial transmission of clamping force and improves the stability of the spinning process. The synchronous drive assembly adopts a dual-path transmission structure (upper input wheel 27 / upper transmission component 31 / upper output wheel 28 and lower input wheel 2 / lower transmission component 32 / lower output wheel 39) to achieve precise synchronous rotation of the support cylinder 26 and the second transmission sleeve 30, avoiding eccentricity or stress concentration in the wheel hub blank 19 due to speed difference. At the same time, the transmission form is flexible and selectable (such as belt drive or chain drive), taking into account reliability and structural adaptability, effectively ensuring the accuracy and consistency of multi-specification wheel hub spinning.

[0051] As an optimized implementation scheme, such as Figure 5-7As shown, the top outer ring of the position fine-tuning base 34 has an inclined structure. The inner support block 33 includes a horizontal part that is slidably connected to the side wall of the support cylinder 26 and an inclined part that cooperates with the inclined structure of the position fine-tuning base 34. The inner end of the horizontal part of the inner support block 33 is also connected to the central protrusion 36 located in the middle of the inner top of the support cylinder 26 through a first spring 35. A mechanical coupling rod 37 that is slidably connected to the middle of the position fine-tuning base 34 is also fixed on the central protrusion 36. The mechanical coupling rod 37 is used to make the position fine-tuning base 34 rotate synchronously with the support cylinder 26. The position fine-tuning base 34 is raised and lowered by the extension and retraction of the fifth push-pull cylinder 38, thereby overcoming the tension of the first spring 35, so that multiple inner support blocks 33 can synchronously spread outward or converge inward, with good consistency and stability, and meet the arrangement requirements of a large number of inner support blocks 33. The constraint of the first spring 35 ensures that the inner support blocks 33 are always in close contact with the position fine-tuning base 34, improving the reliability of adjustment and movement.

[0052] Preferably, the top inner ring of the position fine-tuning base 34 can be configured as a groove structure to avoid the first spring 35, improving the compactness of the installation. The cross-section of the mechanical coupling rod 37 does not need to be circular to meet the requirements of synchronous transmission.

[0053] In application, the inclined structure at the top of the position fine-tuning base 34 cooperates with the inclined portion of the inner support block 33. The fifth push-pull cylinder 38 drives the position fine-tuning base 34 to rise and fall, overcoming the tension of the first spring 35. This allows multiple inner support blocks 33 to synchronously expand outwards or converge inwards, ensuring stable support and precise fit for wheel hub blanks 19 of different specifications. The inner support block 33 is connected to the central protrusion 36 within the support cylinder 26 via the first spring 35, ensuring it remains firmly attached to the position fine-tuning base 34, improving the reliability of adjustment and allowing for a larger number of inner support blocks 33 to enhance the support effect. Furthermore, the inner ring at the top of the position fine-tuning base 34 is designed with a groove structure to avoid the first spring 35, increasing installation compactness. The non-circular cross-section design of the mechanical coupling rod 37 ensures synchronous rotation between the position fine-tuning base 34 and the support cylinder 26, further enhancing the overall stability and adaptability of the device, achieving efficient and reliable multi-specification wheel hub spinning.

[0054] As an optimized implementation scheme, such as Figure 1-2As shown, when the spinning assembly is working, the fifth push-pull cylinder 38 synchronously drives the inner support block 33 to adapt and move through the position fine-tuning base 34. Specifically, when the spinning assembly is working, when the spinning assembly moves towards the wheel hub blank 19, the fifth push-pull cylinder 38 synchronously drives the inner support block 33 to converge inward through the position fine-tuning base 34; when the spinning assembly moves away from the wheel hub blank 19, the fifth push-pull cylinder 38 synchronously drives the inner support block 33 to expand outward through the position fine-tuning base 34. This ensures that the inner support block 33 always has a reliable sidewall support effect for the wheel hub blank 19 and meets the flexible adaptation requirements of spinning.

[0055] The spinning assembly includes an outer open bracket 10. A second push-pull cylinder 13 is horizontally fixed on the base 1 to drive the outer open bracket 10 to move relative to the wheel hub blank 19. An inner open bracket 18 is longitudinally slidably provided on the inner side of the outer open bracket 10. A third push-pull cylinder 16 is also vertically fixed on the inner side of the outer open bracket 10 to drive the inner open bracket 18 to move longitudinally. A first transmission rod 17 is vertically rotatably installed between the two branches of the outer open bracket 10. A second motor 9 is fixed at the top of the outer open bracket 10 and is connected to the first transmission rod 17. The first transmission rod 17 includes a prism section (i.e., the cross-section is not circular). A first transmission sleeve 12 is slidably provided on the prism section. A spinning wheel 11 for spinning the wheel hub blank 19 is fixed on the first transmission sleeve 12. The two branches of the inner open bracket 18 are also rotatably connected to the two ends of the first transmission sleeve 12 to achieve stable rotational support for the first transmission sleeve 12. The third push-pull cylinder 16 can drive the inner open bracket 18 to rise and fall, thereby driving the spinning wheel 11 to rise and fall. The second push-pull cylinder 13 can drive the outer open bracket 10 to move horizontally. The second motor 9 can drive the first transmission rod 17, the first transmission sleeve 12 and the spinning wheel 11 to rotate synchronously. The rotation of the first transmission sleeve 12 will not affect the rise and fall of the inner open bracket 18, thus meeting the requirements of reliable spinning and real-time adjustment.

[0056] Preferably, both the outer open bracket 10 and the inner open bracket 18 adopt a side-mounted U-shaped structure. The bottom of the outer open bracket 10 is slidably connected to the linear sliding track 14 fixed on the base 1, which improves the stability of the movement of the outer open bracket 10. The vertical part of the inner open bracket 18 is also slidably connected to the guide ridge 15 fixed on the inner side of the vertical part of the outer open bracket 10, which improves the stability of the movement of the inner open bracket 18.

[0057] Preferably, the structure of the spinning wheel 11 is not limited and any existing conventional structure can be used. Furthermore, the spinning wheel 11 can be matched with the rotation of the hub blank 19, and no special limitations are imposed.

[0058] In application, the position of the inner support block 33 is dynamically adjusted to ensure stable support for the wheel hub blank 19 during the spinning process. Simultaneously, the multi-dimensional precise adjustment (horizontal, vertical, and rotational) of the spinning assembly, combined with a highly stable structural design, achieves efficient and precise wheel rim spinning, significantly improving the equipment's adaptability and production efficiency. This design not only enhances the overall reliability of the device but also provides greater flexibility and higher finished product quality for spinning processing of wheel hubs of different specifications.

[0059] As an optimized implementation scheme, such as Figure 2 As shown, it also includes at least one set of auxiliary heating components. The auxiliary heating components include an annular heat source plate 20 that is configured to cooperate with the wheel hub blank 19. An auxiliary column 22 is fixed on the base 1. A fourth push-pull cylinder 21 is horizontally fixed at the upper end of the auxiliary column 22, with the end of the telescopic mandrel fixedly connected to the middle of the outer side of the annular heat source plate 20. The annular heat source plate 20 can be moved by the fourth push-pull cylinder 21 to adapt to changes in the diameter of the wheel hub blank 19. The heating method of the annular heat source plate 20 is not limited and can be conventionally selected.

[0060] In application, by adding auxiliary heating components, the annular heat source plate 20 is used to locally preheat the wheel hub blank 19, which improves the plasticity of the material during the spinning process, reduces the risk of material cracking, and helps to obtain more uniform wall thickness and higher surface quality. At the same time, with the help of the fourth push-pull cylinder 21, the annular heat source plate 20 can be flexibly adjusted to adapt to wheel hub blanks 19 of different sizes, improving the applicability and processing accuracy of the equipment, and providing strong support for achieving efficient and high-quality multi-specification wheel hub spinning.

[0061] Example 2

[0062] The difference from Embodiment 1 lies in the improvement of the pressing plate 24, such as... Figure 8-10 As shown, the details are as follows:

[0063] A fixed plate 40 is slidably provided in the middle of the lower part of the pressing plate 24. A second spring 42 for elastic support of the fixed plate 40 is also provided on the inner side of the pressing plate 24. A plurality of limiting rods 41 are slidably distributed around the lower outer ring of the pressing plate 24. A third spring 43 for elastic support of the limiting rods 41 is also provided on the inner side of the pressing plate 24. A fixed rod 44 is slidably provided in the pressing plate 24 between the limiting rods 41 and the fixed plate 40. The inner end of the fixed rod 44 is fixed with a cylindrical end post 46. An annular cavity is also provided on the outer side of the fixed plate 40. A first curved surface protrusion 47 is provided on the upper part of the outer side of the annular cavity. A second curved surface protrusion 48 is provided on the lower lower outer ring of the fixed plate 40. An annular flange 45 is also provided on the bottom of the pressing plate 24. An annular groove that mates with the annular flange 45 is provided.

[0064] When there is no external force, under the elastic force of the second spring 42, the lower surface of the fixed plate 40 protrudes from the lower surface of the pressing plate 24. At this time, the first curved protrusion 47 abuts against the upper part of the side of the end post 46 near the fixed rod 44. The end of the fixed rod 44 away from the end post 46 is separated from the limiting rod 41. The limiting rod 41 can extend and retract, which can match the changes in the spoke structure of the wheel hub blank 19 and improve the fixing reliability of the wheel hub blank 19. During fixing, the limiting abutment 41 first abuts against the surface of the wheel hub blank 19 and retracts adaptively. Then, the lower surface of the fixing plate 40 abuts against the wheel hub blank 19 until the annular flange 45 is completely accommodated in the annular groove. The lower surface of the fixing plate 40 is flush with the lower surface of the pressing plate 24. At this time, the first curved protrusion 47 separates from the upper part of the end post 46 near the fixing rod 44, and the second curved protrusion 48 abuts against the lower part of the end post 46 away from the fixing rod 44 and pushes the fixing rod 44 to move. This causes the end of the fixing rod 44 away from the end post 46 to abut against and brake the limiting abutment 41, thus completing the locking and fixing of the limiting abutment 41.

[0065] By limiting the special structure of the pressing plate 24, the third spring 43 only needs to be arranged to provide enough elastic force to reset the limiting rod 41 (to satisfy the contact with the surface of the wheel hub blank 19), without causing damage to the wheel hub blank 19. Moreover, after the limiting rod 41 is adaptively retracted into place, the retraction of the fixed plate 40 can control multiple fixed rods 44 to lock multiple limiting rods 41 at the same time, thereby ensuring the stability and reliability of the clamping transmission of the wheel hub blank 19.

[0066] In application, by pressing the elastic limit rod 41 built into the pressure plate 24 and the linkage locking mechanism, the wheel hub blank 19 can be adaptively fitted to the spoke structure, while multi-point synchronous locking is completed. This balances flexible clamping and transmission reliability, effectively avoiding workpiece damage and improving clamping stability.

[0067] The above embodiments of the present invention provide a multi-specification integrated spinning forming device for wheel hubs, which achieves efficient and precise spinning forming of wheel hub blanks 19 through the coordinated work of multiple components. Specifically:

[0068] The support cylinder 26 cooperates with multiple inner support blocks 33 to adaptively support the interior of the wheel hub blank 19. The fifth push-pull cylinder 38 drives the position fine-tuning base 34 to rise and fall, thereby causing the inner support blocks 33 to spread outward or converge inward, ensuring stable support for wheel hub blanks 19 of different specifications.

[0069] The pressing plate 24 and the support cylinder 26 work together to clamp and fix the wheel hub blank 19. The first push-pull cylinder 7 controls the axial movement of the pressing plate 24 to complete the clamping or releasing action. In embodiment 2, the pressing plate 24 is further optimized and is equipped with components such as a fixed plate 40 and a limiting rod 41, which can realize more flexible multi-point adaptive clamping and rigid locking to meet the needs of different wheel spoke structures.

[0070] The synchronous drive assembly includes a drive shaft 3 and related input / output wheels, driven by a first motor 6, to ensure that the second transmission sleeve 30 and the support sleeve 26 rotate synchronously, thereby driving the hub blank 19 to rotate stably.

[0071] The spinning assembly includes an outer open bracket 10, an inner open bracket 18, a first transmission rod 17, and a spinning wheel 11 on it. A second motor 9 drives the spinning wheel 11 to rotate at high speed, while a second push-pull cylinder 13 and a third push-pull cylinder 16 adjust the radial and axial positions of the spinning wheel 11, respectively, to achieve precise spinning forming of the rim portion of the wheel hub blank 19.

[0072] During the spinning process, the fifth push-pull cylinder 38 adjusts the state of the inner support block 33 according to the position of the spinning wheel 11: when the spinning wheel 11 is close to the wheel hub blank 19, the inner support block 33 converges inward; when the spinning wheel 11 is far away, the inner support block 33 spreads outward, ensuring effective support for the side wall of the wheel hub blank 19, preventing deformation and improving forming accuracy.

[0073] In addition, the auxiliary heating component includes an annular heat source plate 20. The fourth push-pull cylinder 21 drives the annular heat source plate 20 to move horizontally, adapting to wheel hub blanks 19 of different diameters, realizing local preheating, improving material plasticity, and helping to improve spinning quality.

[0074] In summary, through the synergistic effect of the above components, the machine achieves integrated and efficient spinning forming of multi-specification wheel hub blanks 19, featuring high flexibility and high precision, and is suitable for the manufacturing needs of wheel hubs with various complex shapes.

[0075] The control of each component can be achieved using a PLC disclosed in the prior art. The specific model and circuit connections of each component are not limited and can be flexibly configured in practical applications. All circuits, electronic components, and modules involved are existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. Furthermore, the scope of protection of this invention does not involve improvements to the software and methods.

[0076] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A multi-specification wheel hub integrated spinning forming device, comprising a top plate (5), a base (1) and a support frame (4) fixed between the two, characterized in that, Also includes: Support cylinder (26), the support cylinder (26) is rotatably connected to base (1) through bottom support (25), the upper side of the support cylinder (26) is provided with multiple inner support blocks (33) circumferentially sliding, the inner side of the support cylinder (26) is provided with a position fine adjustment base (34) that cooperates with the inner support blocks (33), the base (1) is fixed with a fifth push-pull cylinder (38), the telescopic spindle end of the fifth push-pull cylinder (38) is rotatably connected to the position fine adjustment base (34) to drive the position fine adjustment base (34) to rise and fall so as to drive the multiple inner support blocks (33) to spread outward or gather inward; Pressing plate (24) is located above support cylinder (26). A second transmission rod (23) is fixed on the top of pressing plate (24). A second transmission sleeve (30) is slidably sleeved on the second transmission rod (23). The second transmission sleeve (30) is rotatably connected to the top plate (5) through top support (29). A first push-pull cylinder (7) is also fixed on the top of the top plate (5). The telescopic spindle end of the first push-pull cylinder (7) is rotatably connected to the second transmission rod (23). Pressing plate (24) and support cylinder (26) cooperate to clamp and fix wheel hub blank (19). Inner support block (33) provides auxiliary support to the inner wall of wheel hub blank (19). The synchronous drive assembly is connected to both the second transmission sleeve (30) and the support sleeve (26) for driving them to rotate synchronously to drive the hub blank (19) to rotate. The spinning assembly is installed on the base (1) on one side of the support cylinder (26) for rim forming of the rotating wheel hub blank (19). Before the spinning process, the fifth push-pull cylinder (38) drives the inner support block (33) to move synchronously through the position fine-tuning base (34).

2. The multi-specification hub integrated spinning forming device according to claim 1, characterized by The pressing plate (24) is a disc-shaped structure, the support cylinder (26) is a cylindrical structure, the lower part of the support cylinder (26) is provided with a shrink cylinder, the shrink cylinder is rotatably connected to the cylinder body of the fifth push-pull cylinder (38) and the lower end is rotatably connected to the bottom support (25); The cylinder body of the first push-pull cylinder (7) is fixedly connected to the top plate (5) through the cylinder body fixing bracket (8), and the first push-pull cylinder (7), the second transmission rod (23) and the fifth push-pull cylinder (38) are arranged coaxially.

3. The multi-specification hub integrated spinning forming device according to claim 2, characterized by The synchronous drive assembly includes a drive shaft (3) rotatably mounted between the top plate (5) and the base (1), with an upper input wheel (27) and a lower input wheel (2) fixed on the drive shaft (3) respectively, and a first motor (6) connected to the drive shaft (3) for transmission on the top plate (5). The second transmission sleeve (30) is fixed with an upper output wheel (28), and the support sleeve (26) is fixed with a lower output wheel (39). The upper input wheel (27) is connected to the upper output wheel (28) through the upper transmission component (31), and the lower input wheel (2) is connected to the lower output wheel (39) through the lower transmission component (32).

4. The multi-specification wheel hub integrated spinning forming device according to claim 1, characterized in that, The top outer ring of the position fine-tuning base (34) is an inclined structure, and the inner support block (33) includes a horizontal part that is slidably connected to the side wall of the support cylinder (26) and an inclined part that cooperates with the inclined structure. The inner end of the horizontal part of the inner support block (33) is connected to the middle protrusion (36) at the top of the support cylinder (26) through the first spring (35). A mechanical coupling rod (37) is fixed on the middle protrusion (36). The mechanical coupling rod (37) is slidably connected to the middle part of the position fine-tuning base (34) to drive the position fine-tuning base (34) to rotate synchronously with the support cylinder (26).

5. The multi-specification wheel hub integrated spinning forming device according to claim 1, characterized in that, The spinning assembly includes an outer open bracket (10), and a second push-pull cylinder (13) is horizontally fixed on the base (1). The second push-pull cylinder (13) is used to drive the outer open bracket (10) to move relative to the wheel hub blank (19). The outer open bracket (10) has an inner open bracket (18) that slides longitudinally on its inner side. The outer open bracket (10) has a third push-pull cylinder (16) that is vertically fixed on its inner side. The third push-pull cylinder (16) is used to drive the inner open bracket (18) to move longitudinally. A first transmission rod (17) is vertically rotatably mounted between the two branches of the outer open bracket (10). A second motor (9) connected to the first transmission rod (17) is fixed at the top of the outer open bracket (10). A first transmission sleeve (12) is slidably provided on the prism section of the first transmission rod (17). A spinning wheel (11) is fixed on the first transmission sleeve (12). The two branches of the inner open bracket (18) are rotatably connected to the two ends of the first transmission sleeve (12).

6. The multi-specification wheel hub integrated spinning forming device according to claim 5, characterized in that, When the spinning assembly is working, as the spinning wheel (11) moves toward the hub blank (19), the fifth push-pull cylinder (38) drives the inner support block (33) to converge inward; When the spinning wheel (11) moves away from the hub blank (19), the fifth push-pull cylinder (38) drives the inner support block (33) to spread outward.

7. The multi-specification wheel hub integrated spinning forming apparatus according to any one of claims 1-6, characterized in that, It also includes at least one set of auxiliary heating components, the auxiliary heating components including a ring heat source plate (20). An auxiliary column (22) is fixed on the base (1). A fourth push-pull cylinder (21) is horizontally fixed at the upper end of the auxiliary column (22). The telescopic spindle end of the fourth push-pull cylinder (21) is fixedly connected to the middle of the outer side of the ring heat source plate (20).

8. The multi-specification wheel hub integrated spinning forming apparatus according to any one of claims 1-6, characterized in that, A fixed plate (40) is slidably provided in the middle of the lower part of the pressing plate (24), and a second spring (42) is provided on the inner side of the pressing plate (24) for elastically supporting the fixed plate (40). The lower outer ring of the pressing plate (24) is provided with multiple limiting rods (41) that slide circumferentially, and the inner side of the pressing plate (24) is provided with a third spring (43) for elastically supporting the limiting rods (41). A fixed rod (44) is slidably provided in the pressing plate (24) between the limiting rod (41) and the fixed plate (40), and an end post (46) is fixed at the inner end of the fixed rod (44). The fixed disk (40) has an annular cavity on its outer side, and a first curved protrusion (47) is provided on the upper part of the outer side of the annular cavity, and a second curved protrusion (48) is provided on the lower part of the inner side. The lower outer ring of the fixed plate (40) is provided with an annular flange (45), and the bottom of the pressing plate (24) is provided with an annular groove that cooperates with the annular flange (45).

9. The multi-specification wheel hub integrated spinning forming device according to claim 8, characterized in that, When there is no external force, the lower surface of the fixed plate (40) protrudes from the lower surface of the pressing plate (24), the first curved protrusion (47) abuts against the upper part of the side of the end post (46) near the fixed rod (44), and the end of the fixed rod (44) away from the end post (46) separates from the limiting rod (41); In the clamping state, the annular flange (45) is housed in the annular groove, the lower surface of the fixed plate (40) is flush with the lower surface of the pressing plate (24), and the second curved protrusion (48) abuts against the lower part of the side of the end post (46) away from the fixed rod (44) and pushes the fixed rod (44) to press against the limiting rod (41).

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