A forging device for automobile wheel hubs

Abstract

This utility model discloses an automotive wheel hub forging device, relating to the field of wheel hub forging technology. It includes a processing table, a mold mounted on the top surface of the processing table, a positioning protrusion installed inside the mold, and a forging assembly mounted on the top surface of the processing table. Multiple guide rails are symmetrically distributed around the center of the mold on the top surface of the processing table. In use, this utility model enables flexible clamping of wheel hubs of different diameters. A first electric push rod adjusts the position of the fixing sleeve, and an opening and closing mechanism drives the clamping arm to rotate, causing the clamping plate to conform to the wheel hub. Its small arc design, combined with high-temperature resistant rubber, can adapt to various wheel hubs, eliminating the need for frequent mold and clamping plate replacements, thus improving processing efficiency and convenience. Furthermore, the stress compensation assembly enhances the support strength of the support arm, extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub forging technology, and in particular to an automobile wheel hub forging device. Background Technology

[0002] In the automotive manufacturing industry, wheel hubs are key components that bear the weight of the vehicle and various stresses during driving. Forging can improve their density, strength, and toughness, ensuring safety and durability. During the forging process, furniture is generally needed to clamp the wheel hubs to prevent them from shifting or deforming, ensuring forging accuracy and quality.

[0003] Existing technologies often employ a drive assembly to drive an arc-shaped clamping plate to hold the wheel hub, making the arc-shaped clamping plate fit against the outer surface of the wheel hub. However, when forging wheel hubs of different diameters, not only must the mold be changed, but also, because the curvature of the arc-shaped clamping plate is constant, when changing wheel hubs of different diameters, the clamping plate must be changed again due to the poor matching between the curvature of the arc-shaped clamping plate and the outer curvature of the wheel hub. The large number of clamping plates makes the operation cumbersome. In view of this, this application proposes an automotive wheel hub forging device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automobile wheel hub forging device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A forging device for automobile wheel hubs includes a processing table. A mold is mounted on the top surface of the processing table, and a positioning protrusion is installed inside the mold. A forging assembly is mounted on the top surface of the processing table. Multiple guide rails are symmetrically distributed around the center of the mold on the top surface of the processing table. A first electric push rod is mounted on the top surface of each guide rail via a side plate. A fixing sleeve is fixedly mounted at the other end of each first electric push rod. Each fixing sleeve is symmetrically rotatably connected to two clamping arms via an opening and closing mechanism. A clamping plate is rotatably connected to one end of each clamping arm. High-temperature resistant rubber is installed on the outer side of each clamping plate. Stress compensation components are installed on both outer sides of each fixing sleeve, and the stress compensation components are used to compensate for the support strength of the corresponding clamping arm.

[0007] Preferably, each of the opening and closing mechanisms includes two rotating shafts, which are symmetrically rotatably connected in the corresponding fixed sleeves. One end of each clamping arm is fixedly installed on the outside of the corresponding rotating shaft. A gear is installed on the outside of each fixed sleeve, and every two corresponding gears mesh with each other. A drive motor is fixedly installed on the top surface of each fixed sleeve, and the output shaft of each drive motor meshes with the corresponding rotating shaft. Each drive motor is a conical rotor motor.

[0008] Preferably, each stress compensation component includes a rotating seat, and each rotating seat is fixedly installed on the outside of the corresponding fixed sleeve. A second electric push rod is rotatably connected inside each rotating seat. The other end of each second electric push rod is movably connected to a movable seat, and each movable seat is slidably connected to the corresponding clamping arm.

[0009] Preferably, the forging assembly includes a top plate, which is fixedly installed on the top surface of the processing table. A first hydraulic cylinder is fixedly installed on the top surface of the top plate, and a bearing plate is fixedly installed at the bottom end of the first hydraulic cylinder. A pressure plate is installed on the bottom surface of the bearing plate through a plurality of second hydraulic cylinders.

[0010] Preferably, two fixing plates are installed on the outer side of each clamping arm, and a guide rod is installed between every two corresponding fixing plates, and each movable seat is slidably connected to the corresponding guide rod.

[0011] Preferably, a connecting rod is fixedly installed at the end of each of the first electric push rods away from the corresponding side plate, and each connecting rod is slidably connected to the corresponding guide rail.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model achieves flexible clamping of wheel hubs of different diameters through a fixed sleeve, a first electric push rod, an opening and closing mechanism, a clamping arm, a clamping plate, and high-temperature resistant rubber. The first electric push rod can adjust the position of the fixed sleeve, and the opening and closing mechanism drives the clamping arm to rotate, causing the clamping plate to fit against the wheel hub. Its small arc design and high-temperature resistant rubber can adapt to a variety of wheel hubs, eliminating the need for frequent mold and clamping plate changes, thus improving processing efficiency and convenience.

[0014] 2. This utility model achieves synchronous start-up of the second electric push rod as the support arm rotates through stress compensation components and other devices. The second electric push rod rotates through the rotating seat, and the movable seat slides along the guide rod to support the clamping arm. Thus, when the support arm is fixed, the second electric push rod can form a fulcrum for the support arm, thereby enhancing the support strength of the support arm and increasing its service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an automobile wheel hub forging device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the positioning protrusion structure of an automobile wheel hub forging device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the guide rail and connecting rod installation structure of an automobile wheel hub forging device proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the opening and closing mechanism of an automobile wheel hub forging device proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the stress compensation component structure of an automobile wheel hub forging device proposed in this utility model.

[0020] In the diagram: 1. Processing table; 2. Top plate; 3. First hydraulic cylinder; 4. Bearing plate; 5. Second hydraulic cylinder; 6. Pressure plate; 7. Mold; 8. Positioning protrusion; 9. Guide rail; 10. Side plate; 11. First electric push rod; 12. Connecting rod; 13. Fixing sleeve; 14. Drive motor; 15. Rotating shaft; 16. Gear; 17. Clamping arm; 18. Clamping plate; 19. High-temperature resistant rubber; 20. Rotating seat; 21. Second electric push rod; 22. Fixing plate; 23. Movable seat; 24. Guide rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] This utility model provides a technical solution: such as Figure 1-5 As shown, an automotive wheel hub forging device includes a processing table 1. A mold 7 is mounted on the top surface of the processing table 1. A positioning protrusion 8 is installed inside the mold 7 for preliminary positioning of the wheel hub blank. A forging assembly is mounted on the top surface of the processing table 1. Multiple guide rails 9 are symmetrically distributed around the center of the mold 7 on the top surface of the processing table 1. A first electric push rod 11 is mounted on the top surface of each guide rail 9 via a side plate 10. A fixing sleeve 13 is fixedly mounted on the other end of each first electric push rod 11. Two clamping arms 17 are symmetrically rotatably connected to each fixing sleeve 13 via an opening and closing mechanism. A clamping plate 18 is rotatably connected to one end of each clamping arm 17. High-temperature resistant rubber 19 is installed on the outer side of each clamping plate 18. Stress compensation components are installed on both outer sides of each fixing sleeve 13, and the stress compensation components are used to compensate for the support strength of the corresponding clamping arm 17.

[0023] Furthermore, each opening and closing mechanism includes two rotating shafts 15, which are symmetrically rotatably connected to the corresponding fixed sleeves 13. One end of each clamping arm 17 is fixedly installed on the outside of the corresponding rotating shaft 15. A gear 16 is installed on the outside of each fixed sleeve 13, and every two corresponding gears 16 mesh with each other. A drive motor 14 is fixedly installed on the top surface of each fixed sleeve 13, and the output shaft of each drive motor 14 meshes with the corresponding rotating shaft 15. Each drive motor 14 is a conical rotor motor.

[0024] The two clamping arms 17 can be rotated in opposite directions by the gear 16, which can clamp hubs of different diameters. The clamping plate 18, which is rotatably connected, can clamp the hubs. The clamping plate 18 is arc-shaped, but the curvature is small. The high-temperature resistant rubber 19 can compensate for the gap between the clamping plate 18 and the outer side of the hub.

[0025] Furthermore, each stress compensation component includes a rotating seat 20, and each rotating seat 20 is fixedly installed on the outside of the corresponding fixed sleeve 13. A second electric push rod 21 is rotatably connected inside each rotating seat 20. The other end of each second electric push rod 21 is movably connected to a movable seat 23, and each movable seat 23 is slidably connected to the corresponding clamping arm 17.

[0026] During the clamping process, the second electric push rod 21 is activated according to the diameter of the wheel hub and the magnitude of the clamping force. The second electric push rod 21 rotates through the rotating seat 20, and the movable seat 23 at its other end slides along the guide rod 24 to provide support for the clamping arm 17, compensate for the support strength of the clamping arm 17, and ensure that the wheel hub can be stably clamped during the forging process, preventing the wheel hub from shifting or deforming during forging due to insufficient or uneven clamping force.

[0027] Furthermore, the forging assembly includes a top plate 2, which is fixedly installed on the top surface of the processing table 1. A first hydraulic cylinder 3 is fixedly installed on the top surface of the top plate 2, and a bearing plate 4 is fixedly installed at the bottom end of the first hydraulic cylinder 3. A pressure plate 6 is installed on the bottom surface of the bearing plate 4 through multiple second hydraulic cylinders 5.

[0028] Once the wheel hub is clamped stably, the first hydraulic cylinder 3 is activated. The first hydraulic cylinder 3 pushes the bearing plate 4 downward, causing multiple second hydraulic cylinders 5 and the pressure plate 6 to descend together. By adjusting the pressure and stroke of the second hydraulic cylinders 5, the pressure plate 6 applies appropriate forging pressure to the wheel hub blank, completing the forging process of the wheel hub. During the forging process, the stress compensation component works continuously to ensure the stable clamping of the wheel hub and the forging quality.

[0029] Furthermore, two fixing plates 22 are installed on the outer side of each clamping arm 17, and a guide rod 24 is installed between each pair of corresponding fixing plates 22, and each movable seat 23 is slidably connected to the corresponding guide rod 24.

[0030] Furthermore, a connecting rod 12 is fixedly installed at the end of each first electric push rod 11 away from the corresponding side plate 10, and each connecting rod 12 is slidably connected to the corresponding guide rail 9 to improve the stability of the fixed sleeve 13.

[0031] This utility model provides an automobile wheel hub forging device, the specific working principle of which is as follows: First, the wheel hub blank is placed in the mold 7. The positioning protrusion 8 will initially position the wheel hub blank and determine its approximate position. According to the actual diameter of the wheel hub, the first electric push rod 11 is activated. The first electric push rod 11 moves smoothly along the guide rail 9 through the connecting rod 12, driving the fixing sleeve 13 to approach or move away from the wheel hub blank, and adjusting to a suitable initial clamping distance.

[0032] Next, start the drive motor 14. The output shaft of the drive motor 14 drives the rotating shaft 15 to rotate. Since the gears 16 on the outer sides of the two rotating shafts 15 mesh with each other, the two clamping arms 17 can rotate synchronously in opposite directions until the clamping plate 18 is tightly attached to the outer side of the wheel hub blank.

[0033] The clamping plate 18, which is arc-shaped and has high-temperature resistant rubber 19 on the outside, can not only adapt to wheel hubs of different diameters, but also compensate for the fitting gap and effectively protect the surface of the wheel hub. During the clamping process, the second electric push rod 21 will start synchronously. The second electric push rod 21 rotates through the rotating seat 20, and its movable seat 23 slides along the guide rod 24 until the clamping arm 17 stops rotating. At this time, the second electric push rod 21 stops moving and provides support for the clamping arm 17, compensating for the support strength and ensuring stable clamping of the wheel hub.

[0034] Once the wheel hub is clamped stably, the first hydraulic cylinder 3 is activated. The first hydraulic cylinder 3 pushes the bearing plate 4 downward, causing multiple second hydraulic cylinders 5 and the pressure plate 6 to descend together. By adjusting the pressure and stroke of the second hydraulic cylinders 5, the pressure plate 6 applies appropriate forging pressure to the wheel hub blank to complete the forging process. After forging is completed, the first hydraulic cylinder 3 and the second hydraulic cylinder 5 are retracted first, causing the pressure plate 6 to rise and reset. Then, the drive motor 14 is activated to open the clamping arm 17, and the first electric push rod 11 is activated to remove the fixing sleeve 13 and the clamping structure, so that the forged wheel hub can be taken out for subsequent processing.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A forging device for automobile wheel hubs, comprising a processing table (1), characterized in that, The processing table (1) is equipped with a mold (7) on its top surface. The mold (7) is equipped with a positioning protrusion (8). The processing table (1) is equipped with a forging assembly on its top surface. Multiple guide rails (9) are symmetrically distributed around the center of the mold (7) on the top surface of the processing table (1). Each guide rail (9) is equipped with a first electric push rod (11) through a side plate (10) on its top surface. Each first electric push rod (11) is fixedly equipped with a fixing sleeve (13) at the other end. Each fixing sleeve (13) is symmetrically connected to two clamping arms (17) through an opening and closing mechanism. Each clamping arm (17) is rotatably connected to a clamping plate (18) at one end. Each clamping plate (18) is equipped with high-temperature resistant rubber (19) on its outer side. Each fixing sleeve (13) is equipped with a stress compensation assembly on both outer sides. The stress compensation assembly is used to compensate for the support strength of the corresponding clamping arm (17).

2. The automobile wheel hub forging device according to claim 1, characterized in that, Each of the opening and closing mechanisms includes two rotating shafts (15), and the two rotating shafts (15) are symmetrically rotatably connected in the corresponding fixed sleeve (13). One end of each clamping arm (17) is fixedly installed on the outside of the corresponding rotating shaft (15). A gear (16) is installed on the outside of each fixed sleeve (13), and every two corresponding gears (16) mesh with each other. A drive motor (14) is fixedly installed on the top surface of each fixed sleeve (13), and the output shaft of each drive motor (14) meshes with the corresponding rotating shaft (15). Each drive motor (14) is a conical rotor motor.

3. The automobile wheel hub forging device according to claim 2, characterized in that, Each of the stress compensation components includes a rotating seat (20), and each rotating seat (20) is fixedly installed on the outside of the corresponding fixed sleeve (13). A second electric push rod (21) is rotatably connected inside each of the rotating seats (20). The other end of each second electric push rod (21) is movably connected to a movable seat (23), and each movable seat (23) is slidably connected to the corresponding clamping arm (17).

4. The automobile wheel hub forging device according to claim 3, characterized in that, The forging assembly includes a top plate (2), which is fixedly installed on the top surface of the processing table (1). A first hydraulic cylinder (3) is fixedly installed on the top surface of the top plate (2), and a bearing plate (4) is fixedly installed at the bottom end of the first hydraulic cylinder (3). A pressure plate (6) is installed on the bottom surface of the bearing plate (4) through multiple second hydraulic cylinders (5).

5. The automobile wheel hub forging device according to claim 4, characterized in that, Two fixing plates (22) are installed on the outer side of each clamping arm (17), and a guide rod (24) is installed between each pair of corresponding fixing plates (22), and each movable seat (23) is slidably connected to the corresponding guide rod (24).

6. The automobile wheel hub forging device according to claim 1, characterized in that, Each of the first electric push rods (11) has a connecting rod (12) fixedly installed at the end away from the corresponding side plate (10), and each connecting rod (12) is slidably connected to the corresponding guide rail (9).

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