A vertical spoke spinning machine

Abstract

The present application relates to the technical field of hub production, and particularly relates to a vertical spoke spinning machine, which comprises a cooling assembly for synchronously cooling the inside of a spoke workpiece to reduce the temperature difference between the inside and the outside of the workpiece and a collecting assembly for recycling the sprayed liquid. The cooling assembly sprays the cooling liquid at a high speed to the surface of the vibration disc, the ultrasonic vibration piece generates high-frequency ultrasonic vibration, and the shearing structure can break the cooling liquid into small and uniform atomized droplets, so that the inside of the spoke is efficiently and accurately cooled, and the temperature difference between the inside and the outside of the workpiece is reduced. The collecting assembly cooperated with the cooling assembly can recycle the sprayed liquid, and the device adopts the mode of a cylinder pushing a closed door, so that the closed door can be opened only after the cylinder is deflated. The hydraulic system is placed on one side of the machine body, so that the length of the hydraulic pipeline is shortened, the number of pipe joints is reduced, and the risk of hydraulic oil leakage is reduced.

Description

Technical Field

[0001] This invention relates to the field of wheel hub manufacturing technology, and in particular to a vertical spoke spinning machine. Background Technology

[0002] As a core load-bearing component connecting the rim and hub, the wheel spokes of an automobile wheel directly affect the vehicle's driving safety and service life due to their geometric precision and mechanical properties. With the increasing demand for lightweight automobiles, aluminum alloy wheel spokes, with their advantages of low density, high specific strength, and good corrosion resistance, have become the mainstream choice for passenger and commercial vehicle wheels. Spin forming technology, due to its high processing precision, high material utilization rate, and excellent mechanical properties of the formed parts, is widely used in the field of aluminum alloy wheel manufacturing.

[0003] During the spoke spinning process, the workpiece undergoes severe plastic deformation under the strong extrusion of the spinning wheel, and the temperature in the deformation zone rises sharply.

[0004] In existing technologies, wheel spoke spinning typically involves a fixed spray pipe installed only at the spinning wheel inside the spinning machine. The cooling medium can only cover the spinning deformation area on the outer surface of the wheel spoke, while the deformation and heat generation area on the inner side of the wheel spoke remains uncooled. This results in uneven temperature distribution on both sides of the workpiece during processing, with a large temperature difference between the two sides. This uneven temperature distribution further leads to a series of quality problems such as uneven grain structure, excessive residual stress, and warping deformation of the formed surface. To address this problem, existing technologies usually use atomizing nozzles to cool the inner side. However, due to the limited space in the equipment, the atomizing nozzles obstruct the normal spinning of the wheel spoke, thus affecting the uniformity and effectiveness of cooling on the inner surface of the wheel spoke.

[0005] In view of this, we provide a vertical spoke spinning machine. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a vertical spoke spinning machine.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a vertical spoke spinning machine, comprising a machine body, a worktable vertically arranged at the bottom of the machine body, and a placement tray arranged above the worktable for carrying spoke workpieces. The worktable is also provided with a cooling component for synchronously dissipating heat inside the spoke workpiece to reduce the temperature difference between the inside and outside of the workpiece, and a collection component for recycling the sprayed liquid.

[0008] The cooling assembly includes a fixed plate mounted on a workbench. An annular groove is formed at the top of the fixed plate, and a vibrating plate is slidably mounted inside the groove. The vibrating plate is connected to the output shaft of a drive motor inside the workbench. Multiple sets of ultrasonic vibrating plates are mounted at the bottom of the fixed plate. A flow guide is mounted around the vibrating plate, and a flow guide component is installed on the inner wall of the flow guide to guide water upwards. Two sets of convex rings are mounted at the top of the fixed plate. Several sets of circumferentially distributed flow holes are formed on the vibrating plate. A shearing toothed ring is installed inside each flow hole, and two sets of symmetrically distributed mounting grooves are formed inside the flow holes. A vibrating ring is slidably mounted inside the flow hole within the mounting groove. A vibration spring is provided between the vibrating ring and the mounting groove. Multiple sets of vibrating rods are mounted at the top of the vibrating ring, and a top rod adapted to the two sets of convex rings is mounted at its lower end. A spray unit for delivering coolant to the area below the fixed plate is also provided on the workbench.

[0009] Preferably, the spraying unit includes multiple sets of spray pipes installed on both sides of the workbench. A nozzle is installed on the top of the spray pipe, and a lower spiral component is installed inside the spray pipe. A bracket is provided above the lower spiral component, and a shaft is rotatably installed on the bracket. An impeller is installed at one end of the shaft, and a conveying component is installed at the other end. An upper spiral component is also installed above the impeller inside the spray pipe.

[0010] Preferably, a hydraulic system is provided on one side of the machine body, and multiple sets of turning wheels and spinning wheels controlled by the hydraulic system are provided inside the machine body. There are three sets of turning wheels and spinning wheels in total, distributed in a 120° circle, and the structure controlling their rotation is a servo motor. Cylinders are installed at the front and rear ends of the machine body, and a sealing door that seals the entire device is installed at the telescopic end of the cylinder.

[0011] Preferably, the collection component includes an array of guide holes located at the bottom of the body, and a collection trough connected to all the guide holes is also provided inside, with a guide pipe extending to the outer end connected to the bottom of the collection trough.

[0012] Preferably, a drive motor is installed inside the workbench, and its drive shaft passes through the fixed plate and extends to the outer end to connect with the bottom end of the placement plate. The outer periphery of the guide shroud covers the outside of the spray area of ​​the water spray pipe.

[0013] Preferably, the draining component is a spiral fan blade structure, and there is a gap between its outer wall and the outer wall of the fixed disk.

[0014] Preferably, the top of the convex ring has a wave structure, and the ultrasonic vibrating plate is a piezoelectric ceramic ultrasonic transducer with a vibration frequency of 20kHz to 50kHz.

[0015] Preferably, all the drainage holes are located below the inner side of the spoke workpiece placed on the placement plate, and the bottom end of the top rod is a transverse columnar structure adapted to the wave structure.

[0016] Preferably, the water inlet below the water spray pipe is connected to an external water supply system, and the flow channel inside the water spray pipe gradually narrows from bottom to top. The liquid sprayed from the nozzle is in a flat state, and the conveying component is located in the middle of the upper spiral component.

[0017] By means of the above technical solution, the present invention provides a vertical spoke spinning machine, which has at least the following beneficial effects: 1. This invention, by setting up a cooling component, sprays coolant at high speed onto the surface of the vibrating plate. The ultrasonic vibrating plate generates high-frequency ultrasonic vibration, and the shearing structure can break the coolant into fine and uniform atomized droplets, achieving efficient and precise cooling of the inner side of the wheel spoke. This reduces the temperature difference between the inner and outer sides of the workpiece and avoids quality problems such as uneven grain structure, excessive residual stress, and warping deformation of the forming surface caused by uneven temperature distribution.

[0018] 2. This invention, by setting a collection component that works in conjunction with the cooling component, can recycle the sprayed liquid. Furthermore, the device uses a cylinder to push the closing door, which means that the closing door can only be opened after the air is released, thus improving the safety performance of the device. Moreover, by placing the hydraulic system on one side of the machine body, the length of the hydraulic pipeline can be shortened and the number of pipe joints can be reduced, thereby reducing the risk of hydraulic oil leakage. At the same time, the side arrangement facilitates daily maintenance and oil filling. Attached Figure Description

[0019] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0020] In the attached diagram: Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the appearance structure of the present invention from a frontal viewing angle; Figure 3 This is a schematic diagram of the peripheral structure of the workbench of the present invention; Figure 4 This is a schematic diagram of the internal structure of the water spray pipe of the present invention; Figure 5 This is a schematic diagram of the external structure of the air guide shield of the present invention; Figure 6 This is a schematic diagram of the external structure of the fixed disk of the present invention; Figure 7 This is a schematic diagram of the external structure of the vibratory feeder of the present invention; Figure 8This is a schematic diagram of the external structure of the present invention from a cross-sectional perspective; Figure 9 For the present invention Figure 7 Enlarged schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Machine body; 2. Workbench; 3. Placement tray; 4. Cooling component; 41. Fixed plate; 42. Annular groove; 43. Vibrating plate; 44. Ultrasonic vibrating plate; 45. Flow guide; 46. Flow guide component; 47. Convex ring; 48. Flow guide hole; 49. Shearing toothed ring; 410. Mounting groove; 411. Vibrating ring; 412. Vibrating rod; 413. Top rod; 414. Water spray pipe; 415. Nozzle; 416. Lower spiral component; 417. Support; 418. Shaft; 419. Impeller; 420. Conveying component; 421. Upper spiral component; 5. Collection component; 51. Flow guide hole; 52. Collection groove; 53. Flow guide pipe; 6. Hydraulic system; 7. Turning wheel; 8. Cylinder; 9. Sealing door. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1 To address the problems in the background technology, this embodiment provides a vertical spoke spinning machine. Please refer to... Figure 1 - Figure 9 The vertical spoke spinning machine includes a machine body 1, a worktable 2 vertically arranged at the bottom of the machine body 1, and a placement tray 3 arranged above the worktable 2 for carrying spoke workpieces. The worktable 2 is also equipped with a cooling component 4 for synchronous heat dissipation of the inside of the spoke workpiece to reduce the temperature difference between the inside and outside of the workpiece, and a collection component 5 for recycling the sprayed liquid.

[0024] The main body 1 serves as the load-bearing foundation for the entire equipment and is fixedly installed at the usage site. A hydraulic system 6 is located on one side of the main body 1. This side-mounted arrangement reduces the risk of hydraulic oil leakage and facilitates routine maintenance and oil filling. Inside the main body 1 are three sets of turning wheels 7, evenly distributed in a 120° circle. Each set of turning wheels 7 is controlled by an independent servo motor. The hydraulic system 6 controls the feed action of each set of turning wheels 7. For spinning wheel spoke workpieces, cylinders 8 are installed at the front and rear ends of the machine body 1. A sealing door 9 is installed at the telescopic end of the cylinder 8. The sealing door 9 is slidably installed on the machine body 1. The cylinder 8 drives the sealing door 9 to seal the entire working area of ​​the equipment, preventing coolant from splashing to the outside of the equipment during the spinning process. The front sealing door 9 is used for loading, and the rear sealing door 9 is used for unloading. The cylinder 8 controls the sealing door 9 to be manually moved only when the equipment is stopped and the air circuit is depressurized, ensuring the safety of the operator.

[0025] The worktable 2 is vertically set at the bottom of the machine body 1. A drive motor is installed inside the worktable 2. The drive shaft of the drive motor passes through the worktable 2 and extends to the outside. The top end of the drive shaft is fixedly connected to the bottom end of the placement plate 3. The placement plate 3 is used to carry the spoke workpiece and drive the spoke workpiece to rotate synchronously.

[0026] The cooling assembly 4 includes a fixed plate 41 mounted on the workbench 2. An annular groove 42 is formed at the top of the fixed plate 41, and a vibrating plate 43 is slidably mounted inside the annular groove 42. The vibrating plate 43 is connected to the output shaft of a drive motor inside the workbench 2. Multiple sets of ultrasonic vibrating plates 44 are mounted at the bottom of the fixed plate 41. The ultrasonic vibrating plates 44 are piezoelectric ceramic ultrasonic transducers with a vibration frequency of 20kHz to 50kHz. When energized, the ultrasonic vibrating plates 44 cooperate with an ultrasonic generator to generate high-frequency ultrasonic vibrations, which are transmitted to the fixed plate 41. The fixed plate 41 is fixedly mounted on the workbench 2. While remaining stationary, the vibratory disk 43 is slidably mounted in the annular groove 42 at the top of the fixed disk 41 and rotates at high speed under the drive of the motor. There is relative rotation between the two. After the ultrasonic vibration is generated by the ultrasonic vibrating plate 44 at the bottom of the fixed disk 41, it needs to be transmitted to the rotating vibratory disk 43 through the sliding fit interface between the fixed disk 41 and the vibratory disk 43. In order to achieve efficient and stable transmission of ultrasonic vibration between the moving and stationary parts, the sliding fit surface of the fixed disk 41 and the vibratory disk 43 is precision ground and the surface roughness is not greater than Ra0.4μm, and the fit clearance is controlled between 0.01mm and 0.0.03mm, ensuring a tight fit between the two contact surfaces in a relative sliding state. When the ultrasonic vibrating plate 44 generates high-frequency ultrasonic vibration, the vibration energy propagates in the solid medium of the fixed plate 41 to its top surface in the form of elastic stress waves. It is then transferred to the bottom surface of the vibrating plate 43 through an extremely thin lubricating film at the contact interface as a coupling medium, and then propagates upward along the solid medium of the vibrating plate 43. This coupling method draws on the basic principle of non-contact ultrasonic energy transfer in liquid media—the piezoelectric vibration energy of the stator is transmitted through the liquid medium between the stator and rotor. The coolant is transferred from the body layer to the rotor. A guide shroud 45 is installed around the vibratory disk 43. A guide element 46, which guides the water flow upwards, is installed on the inner wall of the guide shroud 45. The guide element 46 has a spiral fan blade structure, and there is a gap between its outer wall and the outer wall of the fixed disk 41. This allows the coolant, after initial vibration atomization, to be transported upwards via rotating airflow. Two sets of convex rings 47 are installed at the top of the fixed disk 41. The top of the convex rings 47 has a wave-like structure, enabling the undulating vibration of the vibrating ring 411. Several sets of circumferentially distributed guide holes 48 are opened on the vibratory disk 43. The drainage holes 48 are all located below the inner side of the wheel spoke workpiece placed on the placement plate 3, so as to evenly and effectively spray the coolant atomized by high-frequency vibration onto the inner side of the wheel spoke, reducing the temperature difference between the inner and outer sides of the wheel spoke. Each set of drainage holes 48 is equipped with a shearing tooth ring 49, and two sets of symmetrically distributed mounting grooves 410 are opened on the inner side of the drainage holes 48. The vibration ring 411 located inside the drainage hole 48 is slidably installed in the mounting groove 410. A vibration spring is provided between the vibration ring 411 and the mounting groove 410. Multiple sets of vibration springs are installed on the top of the vibration ring 411. The vibrating rod 412 has a top rod 413 installed at its lower end, which is adapted to two sets of convex rings 47. The bottom end of the top rod 413 is a transverse columnar structure adapted to the wave structure. When the top rod 413 rotates with the vibrating plate 43, its bottom end slides on the wave structure surface of the convex rings 47. Due to the undulations of the wave structure, the top rod 413 reciprocates in the vertical direction during rotation, causing the vibrating ring 411 and the vibrating rod 412 to vibrate synchronously up and down. The worktable 2 is also equipped with a spray unit that delivers coolant to the area below the fixed plate 41.

[0027] The spraying unit includes multiple sets of spray pipes 414 installed on both sides of the workbench 2. The water inlets below the spray pipes 414 are connected to an external water supply system. The external water supply system is a coolant circulation supply station independently set next to the body 1 of the vertical wheel spoke spinning machine. It includes a storage tank, a supply pump, a filter, a pressure regulating valve group, and connecting pipes. The storage tank stores a sufficient amount of water-based coolant or emulsion. The supply pump draws coolant from the storage tank, pressurizes it, and then delivers it to the water inlets of the spray pipes 414 through the connecting pipes. Meanwhile, a filter is installed at the inlet or outlet of the coolant supply pump to remove impurities and particles from the coolant. A pressure regulating valve assembly is used to regulate the coolant pressure delivered to the spray pipe 414, maintaining it within the set operating pressure range. This provides a continuous, stable, and clean coolant supply to the cooling assembly 4, ensuring the continuous operation of the internal spray cooling system. Furthermore, the flow channels inside the spray pipe 414 gradually narrow from bottom to top, which increases the water flow rate. A nozzle 415 is installed at the top of the spray pipe 414. The liquid sprayed from nozzle 415 is in a flat state. The flat nozzle 415 transforms the high-pressure coolant in the spray pipe 414, which has undergone multi-stage acceleration, from a circular columnar jet to a flat fan-shaped jet, increasing the coverage width and impact area of ​​the coolant sprayed onto the fixed plate 41. A lower spiral component 416 is installed inside the spray pipe 414, and a bracket 417 is provided above the lower spiral component 416. A shaft 418 is rotatably mounted on the bracket 417. An impeller 419 is installed at one end of the shaft 418, and a conveyor is installed at the other end. 420, the conveying component 420 is located in the middle inside the upper spiral component 421, so that when the conveying component 420 is driven by the shaft 418 to rotate, it can continuously push the coolant inside the spiral channel of the upper spiral component 421, preventing the coolant from generating flow velocity stratification or local eddies in the upper section of the water spray pipe 414 with a gradually changing flow channel cross-sectional area, and ensuring that the coolant enters the nozzle 415 with a uniform flow velocity and a stable flow state. The upper spiral component 421 located above the impeller 419 is also installed inside the water spray pipe 414. This invention uses 6061 aluminum alloy wheel spoke blanks for spinning comparison tests. The ultrasonic vibrator 44 was set to a frequency of 35kHz and an input power of 100W; the inlet pressure of the water spray pipe 414 was 0.5MPa and the coolant flow rate was 5L / min; the rotational speed of the vibrating disc 43 was 1500rpm; and the shearing toothed ring 49 had 18 teeth and a tooth height of 1mm. Under the same spinning process parameters, the traditional single-sided spray cooling method, because the cooling medium can only cover the outer surface of the wheel spoke, cannot effectively dissipate heat from the deformation zone on the inner side of the wheel spoke. Measured temperatures on the inner side of the wheel spoke reached 280℃~320℃, while the outer side temperature was 200℃~220℃, with a temperature difference of 80℃~100℃. This resulted in an uneven distribution of coarse and fine grain regions in the grain structure after wheel spoke forming, with residual stress peaks reaching 180MPa~220MPa and warping deformation of the formed surface. The coolant, after undergoing a three-stage synergistic treatment involving the ultrasonic atomization cooling method of the present invention (0.15mm~0.25mm), is precisely covered in a fine and uniform atomized state by the cavitation effect of the ultrasonic vibrating plate 44, the shearing refinement of the shearing toothed ring 49, and the high-frequency micro-vibration of the vibrating rod 412, thus accurately covering the high-temperature deformation zone inside the wheel spoke in a fine and uniform atomized state. The measured temperature inside the wheel spoke is stably controlled at 205℃~225℃, and the temperature outside is 200℃~220℃. The temperature difference between the inside and outside is significantly reduced to 15℃~25℃, a reduction of more than 70%. The grain structure is uniform and fine, with no coarse grain bands appearing. The peak residual stress is reduced to 85MPa~110MPa, a reduction of about 50%. The warping deformation of the forming surface is controlled at 0.03mm~0.08mm. This effectively solves the quality problems of uneven grain structure, excessive residual stress, and warping deformation of the forming surface caused by excessive temperature difference between the inside and outside in traditional cooling methods.

[0028] Working principle: The vertical spoke spinning machine is a metal plastic processing equipment in which the main shaft is arranged vertically at the bottom of the machine body 1 and the workpiece is placed horizontally above the worktable 2 for spinning. Its core structure includes the machine body 1, the vertically set worktable 2, the workpiece placement plate 3, multiple sets of turning wheels 7 evenly distributed around the circumference of the workpiece, and the hydraulic and electrical control system. During operation, the workpiece rotates around the vertical main shaft with the placement plate 3. The multiple sets of turning wheels 7 apply radial and axial feed pressure to the workpiece from different directions, so that the workpiece material undergoes continuous local plastic flow under the extrusion of the turning wheels, and gradually forms the cross-sectional shape and contour size required for the spokes. Compared with the horizontal structure, the vertical layout makes it easier to clamp the workpiece. The workpiece naturally fits on the placement plate 3 under the action of gravity, reducing the complexity of auxiliary support and clamping. At the same time, it is beneficial to collect coolant and remove chips during the processing. When the vertical spoke spinning machine is working, the spoke workpiece is gripped and placed on the placement tray 3 by a six-axis industrial robot. The end effector of the robot is equipped with a special gripper that matches the center hole and outer edge contour of the spoke. After the gripper picks up the spoke blank from the material rack, the robot moves to directly above the placement tray 3 according to the trajectory preset by the teach pendant. The position of the placement tray 3 is accurately identified and positioned by a machine vision system or positioning sensor. Then, the robot adjusts the gripper posture to keep the spoke workpiece parallel to the upper surface of the placement tray 3, and places the spoke workpiece smoothly on the placement tray 3. After placement, the gripper releases and exits the machine. The robot is positioned on the front and rear sides of the machine body 1 to automatically load and unload wheel spokes. The drive motor inside the workbench 2 is activated, driving the placement disc 3 and the wheel spokes synchronously via the drive shaft. Simultaneously, the hydraulic system 6 drives three sets of turning wheels 7, arranged in a 120° circle, to feed towards the wheel spokes, performing spin forming. During this process, the hydraulic system 6 provides a stable hydraulic driving force from the side of the machine body 1 to the turning wheels 7. Because the hydraulic system 6 is located on the side of the machine body 1 rather than the top, the length of the hydraulic lines is shortened, the number of pipe joints is reduced, and the efficiency is lowered. This design reduces the risk of hydraulic oil leakage, and the side-mounted arrangement facilitates daily maintenance and oil filling. The three sets of turning wheels 7 are each driven and controlled by an independent servo motor. Each set of turning wheels 7 can be set with different feed speeds and feed amounts according to the spinning process requirements, enabling synchronous or asynchronous operation of the three sets of turning wheels 7. At different stages of spinning forming—such as rapid forming with a large feed amount in the rough spinning stage and precision shaping with a small feed amount in the fine spinning stage—each turning wheel 7 can execute differentiated motion trajectories, cooperating to complete the three-stage processing of the spokes, improving the flexibility and processing quality of spinning forming. The rotation status of the turning wheels 7 is monitored by the encoder of the servo motor. The feedback is sent to the control system in real time, so the operator can keep track of the operation of each set of turning wheels 7 at any time. This avoids the disadvantage of not being able to judge the rotation status due to stalling in the traditional hydraulic motor drive method. During the spinning process, the closed doors 9 installed at the front and rear ends of the machine body 1 are automatically closed under the drive of the cylinder 8 to seal the working area. The front closed door 9 is used for loading, and the rear closed door 9 is used for unloading. The cylinder 8 controls the closed doors 9 to be manually moved only when the equipment is stopped and the air circuit is depressurized, which ensures the safety of the operator. During the spinning process, a lot of heat is generated in the deformation areas on both the inner and outer sides of the spoke workpiece, which needs to be cooled in time. After the cooling component 4 is activated, the external water supply system delivers coolant to the inlet of the spray pipe 414. The coolant flows upward along the spray pipe 414, entering a narrow channel from a wider channel, thus accelerating the liquid velocity. In the narrow channel, the coolant first flows through the lower spiral component 416, where it is accelerated by the spiral flow guiding action. Subsequently, it impacts the impeller 419, causing it to rotate. The impeller 419 drives the conveyor component 420 to rotate synchronously via the shaft 418. During rotation, the conveyor component 420 agitates and pushes the coolant, maintaining a uniform flow rate and state. The coolant continues to flow upward, passing through the upper spiral component 421. Since the spiral direction of the upper spiral component 421 is opposite to that of the lower spiral component 416, the coolant is further accelerated and homogenized by the reverse spiral flow guiding action. The flow velocity of the coolant continues to increase during the flow process, finally being sprayed out at high speed from the nozzle 415 in a flat state. During this process, the vibratory disk 43 rotates at high speed around its own axis under the drive of the drive motor. The ultrasonic vibrating plate 44, which is installed at the bottom of the fixed disk 41, generates high-frequency ultrasonic vibration after being energized. The high-frequency ultrasonic vibration generated is directly transmitted to the surface of the vibratory disk 43, which slides with the fixed disk 41, through the fixed disk 41. The core working principle of the ultrasonic vibrating plate 44 is based on the inverse piezoelectric effect of piezoelectric ceramic materials. When a high-frequency alternating current signal is applied to the positive and negative electrodes of the piezoelectric ceramic ultrasonic transducer, the piezoelectric ceramic lattice structure undergoes periodic stretching and deformation under the action of the electric field. Electrical energy is converted into mechanical vibration energy of the same frequency, generating high-frequency ultrasonic vibration with a frequency of 20kHz to 50kHz. This high-frequency mechanical vibration is transmitted to the surface of the vibrating disk 43 through the tightly fitted fixed disk 41, causing an ultrasonic cavitation field to be formed inside the coolant flowing through the vibrating disk 43. Microbubbles in the liquid rapidly expand and violently collapse under the action of high-frequency sound pressure. At the moment of collapse, a local high temperature and high pressure shock wave is generated, which tears and breaks the continuous liquid flow into fine and uniform atomized droplets, thereby achieving fine atomization of the coolant and enabling the initially vibrated and atomized coolant to be transported upward. The atomized coolant, under the centrifugal force generated by the high-speed rotation of the vibratory plate 43 and covered by the guide shroud 45 and the guide element 46, generates an upward swirling force and spreads evenly outward along the upper surface of the vibratory plate 43. When the coolant reaches the guide hole 48, it flows upward through the guide hole 48. During the flow of the coolant through the guide hole 48, it is subjected to the shearing action of the shearing toothed ring 49 installed inside the guide hole 48. The toothed structure on the upper surface of the shearing toothed ring 49 further tears and disperses the coolant, making the atomized droplets more uniform and fine. At the same time, when the vibratory plate 43 rotates, it drives the vibratory ring 411 and the push rod 413 installed on it to rotate synchronously. The bottom end of the push rod 413 slides on the wave structure surface of the two sets of convex rings 47 at the top of the fixed plate 41. Since the wave structure is undulating along the circumference, the push rod 413 generates reciprocating motion in the vertical direction during rotation, which drives the vibratory ring 411 to overcome the elastic force of the vibration spring and vibrate up and down along the mounting groove 410. When the vibratory ring 411 vibrates, it drives the vibratory rod 412 at its top to vibrate synchronously. The vibratory rod 412 performs high-frequency reciprocating vibration on the shear tooth ring 49, which further refines the coolant and prevents the coolant from accumulating or blocking at the outlet of the drain hole 48. After being refined through multi-stage atomization, shearing, and vibration, the coolant is evenly sprayed from the upper end of the drainage hole 48. Since all drainage holes 48 are located below the inner side of the wheel spoke workpiece placed on the placement plate 3, the coolant accurately covers the high-temperature deformation zone on the inner side of the wheel spoke workpiece in a fine and uniform atomization state, effectively cooling the inner side of the wheel spoke. Meanwhile, the outer wheel 7 is still cooled by traditional spraying. Through the synchronous cooling of the inner and outer sides, the temperature difference between the inner and outer sides of the wheel spoke workpiece is effectively controlled, avoiding quality problems such as uneven grain structure, excessive residual stress, and warping deformation of the forming surface caused by uneven temperature distribution.

[0029] Example 2 Based on Example 1, such as Figure 1 - Figure 9 As shown, if the sprayed coolant is not recycled during the spray cooling process, it will easily lead to resource waste. Therefore, a liquid recovery structure is set up to work in conjunction with the spray cooling structure. The specific implementation details are as follows: The collection component 5 includes an array of guide holes 51 located at the bottom of the body 1, and a conical collection trough 52 connected to all the guide holes 51. The bottom of the collection trough 52 is connected to a guide pipe 53 extending to the outer end.

[0030] Working principle: After the coolant cools the spoke workpiece, it drips downwards under the action of gravity and flows into the conical collection tank 52 through the array of guide holes 51 at the bottom of the machine body 1. Then it is transported to the external filtration and recycling system through the guide pipe 53 for filtration and recycling.

[0031] It should be emphasized that the ultrasonic vibration principle, centrifugal dispersion principle, and spiral flow guiding principle involved in this invention are all existing known technologies. The vibration frequency of the ultrasonic vibrating plate 44, the rotation speed of the vibrating plate 43, the undulation amplitude and frequency of the wave structure at the top of the convex ring 47, and the diameter change ratio of the internal flow channel of the water spray pipe 414 can be flexibly adjusted according to the material, size, and spinning process requirements of the wheel spoke workpiece, and will not be described in detail.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

[0033] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical spoke spinning press, characterized in that: It includes a machine body (1), a workbench (2) vertically set at the bottom of the machine body (1), and a placement tray (3) set above the workbench (2) for carrying the spoke workpiece. The workbench (2) is also equipped with a cooling component (4) for synchronously dissipating heat inside the spoke workpiece to reduce the temperature difference between the inside and outside of the workpiece, and a collection component (5) for recycling the sprayed liquid. The cooling component (4) includes a fixed plate (41) mounted on a workbench (2). The top of the fixed plate (41) has an annular groove (42). A vibrating plate (43) is slidably mounted inside the annular groove (42). The vibrating plate (43) is connected to the output shaft of a drive motor inside the workbench (2). Multiple sets of ultrasonic vibrating plates (44) are mounted at the bottom of the fixed plate (41). A flow guide (45) is mounted around the vibrating plate (43). A flow guide (46) is mounted on the inner wall of the flow guide (45) to guide the water flow upward. Two sets of convex rings (47) are mounted at the top of the fixed plate (41). Several sets of convex rings (47) are mounted on the vibrating plate (43). The drainage holes (48) are distributed in a circle. Each group of drainage holes (48) is equipped with a shearing toothed ring (49). Two sets of symmetrically distributed mounting grooves (410) are opened on the inner side of the drainage holes (48). A vibration ring (411) located inside the drainage hole (48) is slidably installed in the mounting groove (410). A vibration spring is provided between the vibration ring (411) and the mounting groove (410). Multiple sets of vibration rods (412) are installed at the top of the vibration ring (411), and a top rod (413) adapted to the two sets of convex rings (47) is installed at its lower end. A spray unit for conveying coolant to the bottom of the fixed plate (41) is also provided on the worktable (2).

2. The vertical spoke spinning machine according to claim 1, characterized in that: The spraying unit includes multiple sets of spray pipes (414) installed on both sides of the workbench (2). A nozzle (415) is installed on the top of the spray pipe (414). A lower spiral component (416) is installed inside the spray pipe (414). A bracket (417) is provided above the lower spiral component (416). A shaft (418) is rotatably installed on the bracket (417). An impeller (419) is installed at one end of the shaft (418), and a conveyor (420) is installed at the other end. An upper spiral component (421) is also installed above the impeller (419) inside the spray pipe (414).

3. A vertical spoke spinning machine according to claim 1, characterized in that: A hydraulic system (6) is provided on one side of the machine body (1). The machine body (1) is equipped with multiple sets of turning wheels (7) and spinning wheels controlled by the hydraulic system (6). There are three sets of turning wheels (7) and spinning wheels, which are distributed in a 120° circle. The structure that controls their rotation is a servo motor. Cylinders (8) are installed at the front and rear ends of the machine body (1). The extension and retraction ends of the cylinders (8) are equipped with a sealing door (9) that seals the entire equipment.

4. A vertical spoke spinning machine according to claim 1, characterized in that: The collection component (5) includes an array of guide holes (51) located at the bottom of the body (1), and a collection trough (52) connected to all the guide holes (51) is also provided inside. The bottom of the collection trough (52) is connected to a guide pipe (53) extending to the outer end.

5. A vertical spoke spinning machine according to claim 1, characterized in that: The workbench (2) is equipped with a drive motor, whose drive shaft passes through the fixed plate and extends to the outer end to connect with the bottom end of the placement plate (3). The guide shroud (45) covers the outside of the spray area of ​​the water spray pipe (414).

6. A vertical spoke spinning machine according to claim 1, characterized in that: The draining component (46) has a spiral fan blade structure, and there is a gap between its outer wall and the outer wall of the fixed disk (41).

7. A vertical spoke spinning machine according to claim 1, characterized in that: The top of the convex ring (47) has a wave structure, and the ultrasonic vibrating plate (44) is a piezoelectric ceramic ultrasonic transducer with a vibration frequency of 20kHz to 50kHz.

8. A vertical spoke spinning machine according to claim 2, characterized in that: All the drainage holes (48) are located below the inner side of the spoke workpiece placed on the placement plate (3), and the bottom end of the top rod (413) is a transverse columnar structure adapted to the wave structure.

9. A vertical spoke spinning machine according to claim 1, characterized in that: The water inlet below the water spray pipe (414) is connected to the external water supply system, and the flow channel inside the water spray pipe (414) gradually narrows from bottom to top. The liquid sprayed by the nozzle (415) is in a flat state, and the conveying component (420) is located in the middle inside the upper spiral component (421).

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