Hub spinning die

Abstract

The utility model discloses a hub spinning die, and belongs to the technical field of spinning. The hub spinning die comprises an upper die body and a lower die body which are vertically connected in a clamped mode, the outer wall of the upper die body and the outer wall of the lower die body are each fixedly connected with a plurality of protruding rubber strips, a stirring mechanism is arranged below the lower die body, spinning mechanisms are arranged on the peripheries of the upper die body and the lower die body, and each stirring mechanism comprises a supporting block fixedly connected to the lower end face of the lower die body. The outer wall of the supporting block is fixedly sleeved with a bearing, the outer wall of the bearing is fixedly connected with an extension rod, and through combination of rotation and vibration, machined hub molten metal is subjected to more uniform and dynamic acting force in the die. In the flowing process of the molten metal, internal bubbles and gaps can be eliminated through vibration, so that a mold cavity is better filled with materials, the internal defects of the hub caused by insufficient filling are reduced, the internal structural strength and the overall forming quality of the hub are remarkably improved, and it is ensured that products meet the high-standard requirement.

Description

Technical Field

[0001] This application relates to the field of spinning technology, and more specifically, to a wheel hub spinning die. Background Technology

[0002] Wheel hub spinning dies are specialized tools used for wheel hub spinning processes. By applying pressure, metal sheets or tubes are gradually shaped into wheel hub shapes during rotation to meet the precision and quality requirements of wheel hub manufacturing.

[0003] In traditional processes, molten metal in wheel hubs is prone to internal defects such as bubbles and voids due to uneven stress within the mold, resulting in insufficient material filling and affecting the structural strength and molding quality of the wheel hub. Furthermore, there is a risk of adhesion and bonding between the molded wheel hub and the mold, requiring significant time and manpower for demolding. High demolding resistance not only extends the production cycle but may also damage the wheel hub surface due to external forces.

[0004] In view of this, this application proposes a wheel hub spinning die. Utility Model Content

[0005] The purpose of this application is to provide a wheel hub spinning die, which solves the technical problems mentioned in the background art.

[0006] This application provides a wheel hub spinning mold, including an upper mold and a lower mold that are snapped together. Multiple convex rubber strips are fixedly connected to the outer walls of both the upper and lower molds. A toggle mechanism is provided below the lower mold, and a spinning mechanism is provided around the upper and lower molds.

[0007] The actuating mechanism includes a support block fixedly connected to the lower end face of the lower mold. A bearing is fixedly sleeved on the outer wall of the support block. An extension rod is fixedly connected to the outer wall of the bearing. A groove is opened on one side of the upper end face of the extension rod. A slider is slidably connected inside the groove. A spring is fixedly connected to one side of the groove, and a slider is fixedly connected to one end of the spring. An actuating rod is fixedly connected to the upper end face of the slider.

[0008] Optionally, a rotating block is fixedly connected to the upper end face of the upper mold, and an injection port communicating with the upper mold is opened through the interior of the rotating block.

[0009] Optionally, the upper end face of the rotating block is provided with a sealing plate, and the lower end face of the sealing plate is fixedly connected with a blocking block corresponding to the injection port.

[0010] Optionally, the spinning mechanism includes an electric telescopic frame disposed around the upper and lower molds. A base plate is fixedly connected to the lower end face of the electric telescopic frame, and a slot is provided on the upper end face of the base plate. The support block, bearing, and extension rod are all located in the slot.

[0011] Optionally, the telescopic end of the electric telescopic frame is fixedly connected to the top plate, and a motor is fixedly connected to the upper surface of the top plate.

[0012] Optionally, a fixed cover is rotatably connected to the lower end face of the top plate, and the output end of the motor is fixedly connected to the fixed cover.

[0013] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0014] This application utilizes the rotation of the upper and lower molds. The rotation of the convex rubber strips on the upper and lower molds pushes a lever away from them. The movement of the lever causes the slider to move, which in turn causes a spring to unfold and generate elastic force. After the lever passes a convex rubber strip, the spring rebounds, causing the slider and lever to move. The lever then impacts the upper and lower molds. As the upper and lower molds continue to rotate, the lever continuously impacts them, causing them to vibrate. This combination of rotation and vibration allows the molten metal being processed to experience a more uniform and dynamic force within the mold. During the flow of the molten metal, the vibration eliminates internal air bubbles and voids, allowing the material to better fill the mold cavity. This reduces internal defects in the wheel hub caused by insufficient filling, significantly improving the internal structural strength and overall forming quality of the wheel hub, ensuring that the product meets high standards. At the same time, the vibration creates a tiny gap between the molded wheel hub and the mold, breaking the adhesion between them. The rotation also helps to break any possible adhesion points. Under the dual effect, the demolding resistance is greatly reduced, making the demolding process smoother and faster, significantly improving demolding efficiency, shortening the production cycle of a single wheel hub, thereby improving overall production efficiency and increasing the company's production capacity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the wheel hub spinning mold disclosed in the embodiments of this application;

[0016] Figure 2 This is a structural development diagram of the wheel hub spinning die disclosed in the embodiments of this application;

[0017] Figure 3 The wheel hub spinning die disclosed in the embodiments of this application Figure 2 A magnified view of a portion of area A;

[0018] The following are the labels in the diagram: 1. Upper mold; 2. Lower mold; 3. Convex rubber strip; 4. Actuating mechanism; 5. Spinning mechanism; 6. Rotating block; 7. Injection port; 8. Sealing plate; 9. Blocking block; 401. Support block; 402. Bearing; 403. Extension rod; 404. Slide groove; 405. Slider; 406. Spring; 407. Actuating rod; 501. Electric telescopic frame; 502. Base plate; 503. Slot; 504. Top plate; 505. Motor; 506. Fixed cover. Detailed Implementation

[0019] The present application will be further described in detail below with reference to the accompanying drawings.

[0020] Reference Figures 1-3 This application provides a wheel hub spinning die, including an upper die 1 and a lower die 2 that are snapped together. Multiple convex rubber strips 3 are fixedly connected to the outer walls of both the upper die 1 and the lower die 2. A toggle mechanism 4 is provided below the lower die 2. A spinning mechanism 5 is provided around the upper die 1 and the lower die 2. The toggle mechanism 4 includes a support block 401 fixedly connected to the lower end face of the lower die 2. A bearing 402 is fixedly sleeved on the outer wall of the support block 401. An extension rod 403 is fixedly connected to the outer wall of the bearing 402. A groove 404 is provided on one side of the upper end face of the extension rod 403. A slider 405 is slidably connected inside the groove 404. A spring 406 is fixedly connected to one side inside the groove 404, and one end of the spring 406... A slider 405 is fixedly connected, and a lever 407 is fixedly connected to the upper end face of the slider 405. As the upper mold 1 and the lower mold 2 rotate, the convex rubber strips 3 on the upper mold 1 and the lower mold 2 rotate, which pushes the lever 407 away from the upper mold 1 and the lower mold 2. The movement of the lever 407 causes the slider 405 to move, and the movement of the slider 405 causes the spring 406 to unfold and generate elastic force. When the lever 407 passes a convex rubber strip 3, the spring 406 rebounds and causes the slider 405 and the lever 407 to move. The lever 407 will hit the upper mold 1 and the lower mold 2. As the upper mold 1 and the lower mold 2 continue to rotate, the lever 407 will continuously hit the upper mold 1 and the lower mold 2, causing the upper mold 1 and the lower mold 2 to vibrate continuously.

[0021] The combination of rotation and vibration subjects the molten metal of the wheel hub to a more uniform and dynamic force within the mold. During the flow of the molten metal, vibration eliminates internal air bubbles and voids, allowing the material to better fill the mold cavity. This reduces internal defects in the wheel hub caused by insufficient filling, significantly improving the internal structural strength and overall molding quality, ensuring the product meets high standards. Simultaneously, vibration creates tiny gaps between the molded wheel hub and the mold, breaking the adhesion between them. Rotation also helps break any potential adhesion points. This dual effect greatly reduces demolding resistance, making the demolding process smoother and faster, significantly improving demolding efficiency, shortening the production cycle of a single wheel hub, thereby increasing overall production efficiency and boosting enterprise capacity.

[0022] A rotating block 6 is fixedly connected to the upper end face of the upper mold 1. An injection port 7 communicating with the upper mold 1 is opened through the interior of the rotating block 6. A sealing plate 8 is provided on the upper end face of the rotating block 6. A blocking block 9 corresponding to the injection port 7 is fixedly connected to the lower end face of the sealing plate 8. After the upper mold 1 and the lower mold 2 are engaged, the sealing plate 8 and the blocking block 9 seal the injection port 7 in time, effectively preventing leakage of the wheel hub molten metal during injection and processing, ensuring that all the molten metal is used for molding, and avoiding material waste and environmental pollution during processing.

[0023] The spinning mechanism 5 includes an electric telescopic frame 501 located around the upper mold 1 and the lower mold 2. A base plate 502 is fixedly connected to the lower end face of the electric telescopic frame 501. A slot 503 is opened on the upper end face of the base plate 502. The support block 401, bearing 402 and extension rod 403 are all located in the slot 503. The telescopic end of the electric telescopic frame 501 is fixedly connected to the top plate 504. A motor 505 is fixedly connected to the upper end face of the top plate 504. A fixed cover 506 is rotatably connected to the lower end face of the top plate 504. The output end of the motor 505 is fixedly connected to the fixed cover 506. The electric telescopic frame 501 drives the top plate 504 and the fixed cover 506 to fasten and fix the rotating block 6 and the sealing plate 8, so that the mold is installed firmly and is not easy to loosen during high-speed rotation and vibration, providing a stable and reliable foundation for subsequent processing.

[0024] Working principle: The upper mold 1 and lower mold 2 are engaged together. Molten metal from the wheel hub is poured into the upper mold 1 and lower mold 2 through the injection port 7 on the rotating block 6. After injection, the sealing plate 8 is placed on the rotating block 6, and the blocking block 9 blocks the injection port 7. The support block 401, bearing 402, and extension rod 403 below the lower mold 2 are inserted into the slot 503 on the bottom plate 502. Then, the electric telescopic frame 501 is activated. The operation of the electric telescopic frame 501 drives the telescopic end to move downward. The movement of the telescopic end drives the top plate 504 to move downward until the fixing cover 506 below the top plate 504 is fastened onto the rotating block 6 and the sealing plate 8.

[0025] When motor 505 is started, it drives the output end to rotate. This rotation causes the fixed cover 506, rotating block 6, upper mold 1, lower mold 2, and support block 401 to rotate. The slot 503 limits the extension rod 403, preventing it from rotating. The continuous rotation of the upper mold 1 and lower mold 2 causes multiple convex rubber strips 3 on the outer wall to rotate synchronously. This rotation pushes the actuating rod 407 away from the upper mold 1 and lower mold 2. The movement of the actuating rod 407 moves the slider 405, which in turn moves the slide block 405. The spring 406 unfolds and generates elastic force. When the actuating rod 407 passes a convex rubber strip 3, the spring 406 rebounds, causing the slider 405 and the actuating rod 407 to move. The actuating rod 407 impacts the upper mold 1 and the lower mold 2. The upper mold 1 and the lower mold 2 continue to rotate, and the actuating rod 407 continuously impacts the upper mold 1 and the lower mold 2, causing the upper mold 1 and the lower mold 2 to vibrate continuously. The combination of rotation and vibration allows the processed material to be subjected to a more uniform and dynamic force within the mold, which helps the material to better fill the mold cavity. Vibration can create a tiny gap between the molded hub and the mold, breaking the adhesion between them. At the same time, rotation also helps to break any possible adhesion points, making it easier for the hub to be removed from the mold, reducing resistance during demolding and damage to the hub surface, improving demolding efficiency and product quality.

[0026] After spinning is completed, turn off the motor 505. The telescopic end of the electric telescopic frame 501 lifts the top plate 504, and the fixed cover 506 disengages from the rotating block 6 and the sealing plate 8. The staff can then remove and open the upper mold 1 and the lower mold 2 to take out the wheel hub.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A wheel hub spinning die, comprising an upper die (1) and a lower die (2) that are interlocked, characterized in that: Multiple convex rubber strips (3) are fixedly connected to the outer walls of the upper mold (1) and the lower mold (2). A toggle mechanism (4) is provided below the lower mold (2). A spinning mechanism (5) is provided around the upper mold (1) and the lower mold (2). The actuating mechanism (4) includes a support block (401) fixedly connected to the lower end face of the lower mold (2). A bearing (402) is fixedly sleeved on the outer wall of the support block (401). An extension rod (403) is fixedly connected to the outer wall of the bearing (402). A slide groove (404) is provided on one side of the upper end face of the extension rod (403). A slider (405) is slidably connected inside the slide groove (404). A spring (406) is fixedly connected to one side inside the slide groove (404), and a slider (405) is fixedly connected to one end of the spring (406). An actuating rod (407) is fixedly connected to the upper end face of the slider (405).

2. The wheel hub spinning die according to claim 1, characterized in that: A rotating block (6) is fixedly connected to the upper end face of the upper mold (1), and an injection port (7) communicating with the upper mold (1) is opened through the interior of the rotating block (6).

3. The wheel hub spinning die according to claim 2, characterized in that: The upper end face of the rotating block (6) is provided with a sealing plate (8), and the lower end face of the sealing plate (8) is fixedly connected with a blocking block (9) corresponding to the injection port (7).

4. The wheel hub spinning die according to claim 1, characterized in that: The spinning mechanism (5) includes an electric telescopic frame (501) located around the upper mold (1) and the lower mold (2). The lower end face of the electric telescopic frame (501) is fixedly connected to a base plate (502). The upper end face of the base plate (502) is provided with a slot (503). The support block (401), bearing (402) and extension rod (403) are all located in the slot (503).

5. The wheel hub spinning die according to claim 4, characterized in that: The telescopic end of the electric telescopic frame (501) is fixedly connected to the top plate (504), and a motor (505) is fixedly connected to the upper surface of the top plate (504).

6. The wheel hub spinning die according to claim 5, characterized in that: The lower end face of the top plate (504) is rotatably connected to a fixed cover (506), and the output end of the motor (505) is fixedly connected to the fixed cover (506).

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