Air-cooled die for hub forging

Abstract

The utility model relates to a kind of air-cooled mould for hub forging applied to mould equipment field, including equipment base, the upper end of equipment base is fixedly connected with mechanism frame, the upper inner wall of mechanism frame is provided with upper forging mould, the lower inner wall of equipment base is provided with lower forging mould, the inner end of equipment base is fixedly connected with air-cooled circulating pump, the inner end of lower forging mould is fixedly connected with air-cooled hollow duct, air-cooled hollow duct extends to the left and right sides of lower forging mould, the end of air-cooled hollow duct away from lower forging mould is fixedly connected with circulating air pipe, circulating air pipe and air-cooled circulating pump are interconnected, in the above-mentioned air-cooled mould for hub forging, annular electric guide rail outside air-cooled hollow duct in the scheme, drive arc-shaped sub-position magnetic block rotation, utilize magnetic connection to drive metal follow-up disturbance fan blade rotation, generate the effect of around flow to cold air flow, substantially improve the heat exchange efficiency of cold air flow, enhance cooling effect.

Description

Technical Field

[0001] This utility model relates to a mold, and more particularly to an air-cooled mold for wheel hub forging applied in the field of mold equipment. Background Technology

[0002] Air-cooled dies for wheel forging are key equipment in the wheel forging process. During forging, an external hydraulic mechanism pushes the upper forging die downward, which, together with the lower forging die, applies pressure to the wheel blank, causing it to undergo plastic deformation and gradually form the wheel shape. The dies are cooled by air cooling technology, thus ensuring the high efficiency and high quality of the wheel forging process.

[0003] Chinese patent CN219561276U discloses an improved wheel hub forming forging device, including a housing and a first mold. Support columns are fixedly connected to the four corners of the top of the housing, and a top plate is fixedly connected to the top of each support column. This invention enables the installation and disassembly of the first mold, facilitating mold maintenance. It also achieves water cooling (using a pump to drive the water tank) and air cooling (using a fan), preventing excessively high temperatures and prolonged cooling times after forging, thus improving work efficiency.

[0004] Traditional wheel hub forging dies have an air-cooled design where the air-cooling pipe is close to the heat source. Due to the simple design of the internal channels of the air-cooling pipe, there is a lack of effective guidance and control of the cold airflow. The cold airflow quickly becomes thermally saturated after contacting the high-temperature area. On the side of the air-cooling pipe away from the heat source, due to the lack of a reasonable heat dissipation structure, the cold airflow is discharged before it can fully exchange heat with the low-temperature area of ​​the die, resulting in a waste of cooling capacity. The overall heat dissipation efficiency of the die is low and the cooling is uneven, which is not conducive to maintaining a stable working temperature of the die. Utility Model Content

[0005] The technical problem to be solved by this utility model in view of the above-mentioned prior art is that the air-cooling design of traditional wheel hub forging molds is such that the air-cooling pipe is close to the heat source. Due to the simple design of the channel inside the air-cooling pipe, there is a lack of effective guidance and control of the cold air flow. After the cold air flow comes into contact with the high temperature area, it quickly becomes thermally saturated. On the side of the air-cooling pipe away from the heat source, due to the lack of a reasonable heat dissipation structure, the cold air flow is discharged before it can fully exchange heat with the low temperature area of ​​the mold, resulting in a waste of cold energy. The overall heat dissipation efficiency of the mold is low and the cooling is uneven, which is not conducive to maintaining a stable working temperature of the mold.

[0006] To address the aforementioned problems, this utility model provides an air-cooled mold for wheel hub forging, comprising an equipment base, a mechanism frame fixedly connected to the upper end of the equipment base, an upper forging mold disposed on the upper inner wall of the mechanism frame, a lower forging mold disposed on the lower inner wall of the equipment base, an air-cooled circulating pump fixedly connected to the inner end of the equipment base, and an air-cooled hollow pipe fixedly connected to the inner end of the lower forging mold. The air-cooled hollow pipe extends to the left and right sides of the lower forging mold, and a circulating air duct is fixedly connected to the end of the air-cooled hollow pipe away from the lower forging mold. The circulating air duct and the air-cooled circulating pump... The pumps are interconnected. Multiple pairs of annular electric guide rails are installed outside the air-cooled hollow pipe. Displacement blocks are slidably connected to the annular electric guide rails. Multiple sets of connected follower rods are connected between corresponding two displacement blocks. Multiple arc-shaped positioning magnetic blocks are fixedly connected to the outside of the multiple sets of connected follower rods. The multiple arc-shaped positioning magnetic blocks are arranged alternately and equidistantly. An inner connecting adapter rod is fixedly connected to the inner wall of the air-cooled hollow pipe. Multiple built-in bearing rings are rotatably connected to the outer end of the inner connecting adapter rod. Multiple metal follower disturbance fan blades are fixedly connected to the outer side of the built-in bearing rings.

[0007] In the aforementioned air-cooled mold for wheel hub forging, the annular electric guide rail outside the air-cooled hollow pipe drives the arc-shaped magnetic block to rotate. The magnetic connection drives the metal to follow the disturbance of the fan blades to rotate, which generates a flow around the cold airflow, greatly improving the heat exchange efficiency of the cold airflow and enhancing the cooling effect.

[0008] As a further improvement of this application, multiple metal follower disturbance fan blades are arranged in a ring at equal intervals, and some of the metal follower disturbance fan blades are made of metal.

[0009] As a further improvement of this application, the metal follower disturbance fan blades made of metal material are magnetically connected to the corresponding arc-shaped magnetic blocks, and an elastic connecting strip is fixedly connected to the end of the metal follower disturbance fan blades away from the built-in bearing cylinder.

[0010] As a further improvement of this application, an auxiliary hollow self-swaying ball is fixedly connected to the end of the elastic connecting strip away from the metal follow-up disturbance fan blade.

[0011] As another improvement of this application, multiple auxiliary hollow self-swaying spheres are arranged in a ring-shaped interval, and a hydraulic mechanism is connected to the upper forging die.

[0012] As a further improvement to this application, multiple built-in bearing cylinders correspond to each other with corresponding arc-shaped locating magnetic blocks, and the lower forging die and the upper forging die are vertically connected.

[0013] As a further improvement to this application, a cold air flow runs through the air-cooled hollow pipe, and the cold air flow cooperates with the lower forging die.

[0014] In summary, this solution utilizes an external hydraulic mechanism to precisely engage the upper and lower forging dies during wheel hub forging. This allows the wheel hub blank to undergo smooth plastic deformation under high pressure, efficiently completing the forging process. During forging, an air-cooled circulating pump introduces cold air into the air-cooled hollow pipe through a circulating air duct to dissipate heat from the lower forging die, ensuring a suitable operating temperature and extending its service life. The annular electric guide rail outside the air-cooled hollow pipe drives the arc-shaped positioning magnetic block to rotate. Magnetic connection drives the metal follower disturbance fan blades to rotate, creating a flow around the cold air, significantly improving the heat exchange efficiency of the cold air and enhancing the cooling effect. The auxiliary hollow self-swaying sphere connected to the metal follower disturbance fan blades, due to centrifugal force and inertia, irregularly sways during rotation, further disrupting the cold air flow field, automatically extending the flow around the dies, strengthening heat exchange, improving the heat dissipation performance of the air-cooling system, ensuring stable wheel hub forging, and improving product quality and production efficiency. Attached Figure Description

[0015] Figure 1 This is an isometric view of the device base according to the first embodiment of this application;

[0016] Figure 2 This is an enlarged view of the air-cooled circulating pump according to the first embodiment of this application;

[0017] Figure 3 This is a partial enlarged view of the air-cooled hollow duct according to the first embodiment of this application;

[0018] Figure 4 This is a partially enlarged cross-section view of the air-cooled hollow duct according to the first embodiment of this application;

[0019] Figure 5 This is a state diagram of the inner connection adapter extraction in the first embodiment of this application.

[0020] Figure 6 This is an enlarged view of the partial truncation of the inner connection adapter in the second embodiment of this application;

[0021] Figure 7 This is an enlarged view of the auxiliary hollow self-swaying ball according to the second embodiment of this application.

[0022] Explanation of the labels in the diagram:

[0023] 1. Equipment base; 2. Mechanism frame; 3. Upper forging die; 4. Lower forging die; 5. Air-cooled circulating pump; 6. Circulating air duct; 7. Air-cooled hollow pipe; 8. Circular electric guide rail; 9. Displacement block; 10. Connecting follower rod; 11. Arc-shaped positioning magnetic block; 12. Internal connecting adapter rod; 13. Built-in bearing ring; 14. Metal follower disturbance fan blades; 15. Elastic connecting strip; 16. Auxiliary hollow self-swaying ball. Detailed Implementation

[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] First implementation method:

[0026] Figure 1-5 This invention illustrates an air-cooled mold for wheel hub forging, comprising an equipment base 1, a mechanism frame 2 fixedly connected to the upper end of the equipment base 1, an upper forging mold 3 disposed on the upper inner wall of the mechanism frame 2, a lower forging mold 4 disposed on the lower inner wall of the equipment base 1, an air-cooled circulating pump 5 fixedly connected to the inner end of the equipment base 1, and an air-cooled hollow pipe 7 fixedly connected to the inner end of the lower forging mold 4. The air-cooled hollow pipe 7 extends to the left and right sides of the lower forging mold 4, and a circulating air duct 6 fixedly connects to the end of the air-cooled hollow pipe 7 away from the lower forging mold 4. The circulating air duct 6 and the air-cooled circulating pump 5 are interconnected, providing air cooling. Multiple pairs of annular electric guide rails 8 are installed outside the hollow pipe 7. Displacement blocks 9 are slidably connected to the outside of the annular electric guide rails 8. Multiple sets of connected follower rods 10 are connected between corresponding two displacement blocks 9. Multiple arc-shaped positioning magnetic blocks 11 are fixedly connected to the outside of the multiple sets of connected follower rods 10. The multiple arc-shaped positioning magnetic blocks 11 are arranged alternately and equidistantly. An inner connecting adapter rod 12 is fixedly connected to the inner side wall of the air-cooled hollow pipe 7. Multiple built-in bearing cylinders 13 are rotatably connected to the outer end of the inner connecting adapter rod 12. Multiple metal follower disturbance fan blades 14 are fixedly connected to the outer side of the built-in bearing cylinders 13.

[0027] Figure 1-5 Multiple metal follower fan blades 14 are arranged in a ring at equal intervals, and some of the metal follower fan blades 14 are made of metal. The metal follower fan blades 14 and the corresponding arc-shaped magnetic blocks 11 are magnetically connected. An elastic connecting strip 15 is fixedly connected to the end of the metal follower fan blade 14 away from the built-in bearing cylinder 13. An auxiliary hollow self-swaying ball 16 is fixedly connected to the end of the elastic connecting strip 15 away from the metal follower fan blade 14. Multiple auxiliary hollow self-swaying balls 16 are arranged in a ring at intervals. A hydraulic mechanism is connected to the upper forging mold 3. Multiple built-in bearing cylinders 13 correspond to the corresponding arc-shaped magnetic blocks 11. The lower forging mold 4 and the upper forging mold 3 are vertically connected. Cold air flows through the air-cooled hollow pipe 7 and cooperate with the lower forging mold 4.

[0028] Figure 1-5This diagram illustrates the close collaboration among components in the operation of the air-cooled mold used for wheel forging, achieving efficient wheel forging and mold cooling. When the forging operation begins, an external hydraulic mechanism drives the upper forging mold 3 downwards, precisely engaging with the lower forging mold 4 fixed to the inner wall of the equipment base 1. During this process, the wheel blank placed between the upper and lower forging molds undergoes plastic deformation under strong pressure, gradually forming the shape of a wheel hub, completing the forging process. During forging, the deformation of the blank generates a large amount of heat; to ensure the proper functioning of the lower forging mold 4... Under normal operating temperature and service life, the air-cooled circulating pump 5, fixedly connected to the inner end of the equipment base 1, starts, introducing outside cold air into the air-cooled hollow pipe 7, fixedly connected to the inner end of the lower forging die 4, through the circulating air duct 6. The cold air circulates within the air-cooled hollow pipe 7, making full contact with the lower forging die 4 and absorbing the heat generated by the die during forging operations, thereby achieving heat dissipation for the lower forging die 4. To further improve the heat exchange efficiency of the cold air flow, multiple pairs of annular electric guide rails 8 installed outside the air-cooled hollow pipe 7 play a key role. When the cold air flow passes through the air-cooled hollow pipe 7, the annular electric guide rails 8 are energized. Upon startup, the displacement block 9, which is slidably connected to it, moves in a circular motion along the guide rail. Multiple sets of connected follower rods 10, which are connected between corresponding displacement blocks 9, rotate synchronously with the movement of the displacement blocks 9. This, in turn, causes multiple arc-shaped positioning magnetic blocks 11, fixed outside the connected follower rods 10, to rotate around the axis of the air-cooled hollow pipe 7. During the rotation of the multiple arc-shaped positioning magnetic blocks 11, the metal follower fan blades 14, which are partially metal and rotatably connected to the inner wall of the air-cooled hollow pipe 7 via internal connecting adapter rods 12, correspond to each other. Furthermore, there is a magnetic connection. When the arc-shaped magnetic block 11 rotates to a position relative to the metal follower disturbance fan blade 14, it will drive the metal follower disturbance fan blade 14 to rotate around the axis of the built-in bearing cylinder 13 by magnetic attraction. Multiple metal follower disturbance fan blades 14 are arranged in a ring at equal intervals on the outside of the built-in bearing cylinder 13. During their rotation, they generate a flow around the cold air flow, disrupting the original flow path of the cold air flow, increasing the contact area and time between the cold air flow and the inner wall of the air-cooled hollow pipe 7 and the lower forging die 4, thereby significantly improving the heat exchange efficiency of the cold air flow and enhancing the cooling effect.

[0029] Second implementation method:

[0030] Figure 6-7This invention illustrates an air-cooled mold for wheel hub forging. Furthermore, an auxiliary hollow self-swaying sphere 16 is connected via an elastic connecting strip 15 to one end of a metal follower-disruptor fan blade 14, away from the built-in bearing cylinder 13. When the metal follower-disruptor fan blade 14 rotates, the auxiliary hollow self-swaying sphere 16 will sway irregularly in space due to centrifugal force and its own inertia. This swaying further disrupts the flow field of the cold air, making the flow of the cold air within the air-cooled hollow pipe 7 more complex and variable. This achieves automatic extension of the flow bypass function, further enhancing the heat exchange between the cold air and the mold, effectively improving the heat dissipation performance of the entire air-cooling system, and ensuring the stable progress of the wheel hub forging process.

[0031] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A wind-cooled die for wheel hub forging, characterized in that: The equipment includes a base (1), with a mechanism frame (2) fixedly connected to the upper end of the base (1). An upper forging mold (3) is provided on the upper inner wall of the mechanism frame (2), and a lower forging mold (4) is provided on the lower inner wall of the base (1). A wind-cooled circulating pump (5) is fixedly connected to the inner end of the base (1), and a wind-cooled hollow pipe (7) is fixedly connected to the inner end of the lower forging mold (4). The wind-cooled hollow pipe (7) extends to the left and right sides of the lower forging mold (4), and a circulating air duct (6) is fixedly connected to the end of the wind-cooled hollow pipe (7) away from the lower forging mold (4). The circulating air duct (6) and the wind-cooled circulating pump (5) are interconnected. Multiple pairs of annular electric guide rails (8) are provided outside the pipe (7). Displacement blocks (9) are slidably connected to the outside of the annular electric guide rails (8). Multiple sets of connected follower rods (10) are connected between the two corresponding displacement blocks (9). Multiple arc-shaped magnetic blocks (11) are fixedly connected to the outside of the multiple sets of connected follower rods (10). The multiple arc-shaped magnetic blocks (11) are arranged in an alternating and equidistant manner. An inner connecting adapter rod (12) is fixedly connected to the inner side wall of the air-cooled hollow pipe (7). Multiple built-in bearing cylinders (13) are rotatably connected to the outer end of the inner connecting adapter rod (12). Multiple metal follower disturbance fan blades (14) are fixedly connected to the outer side of the built-in bearing cylinders (13).

2. The air-cooled die for wheel hub forging according to claim 1, characterized in that: The multiple metal follower disturbance fan blades (14) are arranged in a ring at equal intervals, and some of the metal follower disturbance fan blades (14) are made of metal.

3. The air-cooled die for wheel hub forging according to claim 2, characterized in that: The metal follower disturbance fan blade (14) and the corresponding arc-shaped magnetic block (11) are magnetically connected. An elastic connecting strip (15) is fixedly connected to the end of the metal follower disturbance fan blade (14) away from the built-in bearing cylinder (13).

4. The air-cooled die for wheel hub forging according to claim 3, characterized in that: An auxiliary hollow self-swaying ball (16) is fixedly connected to one end of the elastic connecting strip (15) away from the metal follow-up disturbance fan blade (14).

5. The air-cooled die for wheel hub forging according to claim 4, characterized in that: Multiple auxiliary hollow self-swaying spheres (16) are arranged in a ring-shaped interval, and the upper forging mold (3) is externally connected to a hydraulic mechanism.

6. The air-cooled die for wheel hub forging according to claim 1, characterized in that: The multiple built-in bearing cylinders (13) correspond to each other with the corresponding arc-shaped locating magnetic blocks (11), and the lower forging die (4) and the upper forging die (3) are vertically connected.

7. The air-cooled die for wheel hub forging according to claim 1, characterized in that: The air-cooled hollow pipe (7) is filled with cold air, which works in conjunction with the lower forging die (4).

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