A forging die for producing an automobile aluminum alloy wheel

Abstract

The application discloses a forging die for automobile aluminum alloy wheel production and relates to the technical field of wheel production.The forging die comprises a base, the outer surface of the base is fixedly connected with supporting bending racks, the supporting bending racks are provided in two, the opposite surfaces of the two supporting bending racks are fixedly connected with connecting blocks, and the connecting blocks are fixedly connected to the surface of the base.The forging die for automobile aluminum alloy wheel production is used in the process of lifting by a forging press, the pressure on the extension blocks disappears, the extrusion pads are spring-like in structure, the extrusion pads are bounced up and reset after losing the pressure, the sleeve shafts are driven to move upwards, the extension blocks are driven upwards by the sliding rods, the wheel hub blanks formed in the pressing grooves are lifted up and separated from the pressing grooves, the wheel hub blanks are conveniently demolded after forging, the wheel hub blanks are prevented from being stuck in the pressing grooves and manpower is saved for demolding the blanks, and the wheel hub blanks and the die are prevented from colliding with each other in the process of manual demolding, so that the blanks are prevented from being damaged.

Description

Technical Field

[0001] This invention relates to the field of wheel manufacturing technology, specifically a forging die for producing automotive aluminum alloy wheels. Background Technology

[0002] A wheel rim, also known as a wheel hub, is a cylindrical component mounted on an axle that supports the tire. Common automotive wheel rims include steel rims and aluminum alloy rims. Steel rims are strong and often used in large, heavy-duty vehicles; however, they are heavy, have a limited design, and do not conform to today's low-carbon and stylish concepts, and are gradually being replaced by aluminum alloy rims.

[0003] Compared to steel car wheels, aluminum alloy wheels have obvious advantages: they have a lower density, about 1 / 3 that of steel, which means that aluminum alloy wheels of the same volume will be 2 / 3 lighter than steel wheels; aluminum alloys can be age-strengthened, and aluminum alloy wheel blanks without age-strengthening treatment have low strength, are easy to process and form, and after corrosion-resistant treatment and painting, aluminum alloy wheels have a variety of colors and are exquisite and beautiful.

[0004] Currently, during the forging of aluminum alloy wheels, the wheel blank is easily stuck in the mold after being compressed, requiring manual labor to remove it, resulting in poor demolding efficiency. In addition, during the forging process, manual demolding can easily cause collisions between the wheel blank and the mold, resulting in damage to the blank. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a forging die for producing automotive aluminum alloy wheels, comprising a base, a supporting bend fixedly connected to the outer surface of the base, two supporting bends being provided, a connecting block fixedly connected between the opposing surfaces of the two supporting bends, the connecting block being fixedly connected to the surface of the base, a first strut fixedly connected to the surface of the supporting bend near the base, a first fixed shaft fixedly connected between the opposing surfaces of the first strut, a second strut fixedly connected to the surface of the supporting bend away from the base, a second fixed shaft fixedly connected between the opposing surfaces of the second strut, and a die assembly fixedly connected between the upper surfaces of the second fixed shaft and the first fixed shaft; before forging, the aluminum alloy billet is heated, the die assembly is preheated, the aluminum alloy billet is placed inside the die assembly, the forging press and the die assembly are engaged, and the aluminum alloy billet is forged by the forging press to form a disc-shaped wheel hub blank.

[0006] The forging die for producing automotive aluminum alloy wheels also includes:

[0007] A voltage stabilizing assembly is fixedly connected between the opposing surfaces of a first fixed shaft and a second fixed shaft. The assembly includes a connecting circular plate, and two fixing blocks are slidably connected to the outer surface of the connecting circular plate. These two fixing blocks are symmetrical about the connecting circular plate, and a pressing component is fixedly connected to the surface of each fixing block. The upper fixing block is slidably connected to the surface of the connecting circular plate, while the lower fixing block restricts the position of the pressing component. When the connecting member is pressed down, the sleeve shaft moves downward, causing the pressing component to contract downward and pulling the upper fixing block down.

[0008] Preferably, the outer surface of the extrusion assembly is fixedly connected to two sleeve shafts, and a sliding pressure assembly is fitted onto the surface of the sleeve shafts. An air bladder is provided on the inner surface of the sliding pressure assembly, and an exhaust port is fixedly connected to the surface of the air bladder. The air bladder and the sliding pressure assembly are compressively fitted together. The sliding pressure assembly is fitted onto the outer side of the sleeve shaft. When the sleeve shaft moves downward, it drives the sliding pressure assembly to compress the air bladder, expelling the gas inside the air bladder from the exhaust port. As the gas in the air bladders on both sides is slowly expelled, the extrusion assembly maintains a balanced state when it contracts, improving the stability of the extrusion assembly.

[0009] Preferably, the outer surface of the sleeve shaft is fixedly connected to a connector, and two sets of connectors are provided. The two sets of connectors are symmetrical about the extrusion assembly, and the connectors are fixedly connected to the surface of the molding assembly.

[0010] Preferably, the die assembly includes a support frame, a fixing plate fixedly connected to the surface of the support frame, a pressure groove fixedly connected to the surface of the fixing plate, an extension block slidably connected to the lower surface of the pressure groove, limit blocks fixedly connected to both sides of the outer surface of the support frame, a connecting frame fixedly connected to the surface of the limit blocks, and a support plate fixedly connected between the opposite surfaces of the connecting frame. The extension block is slidably connected to the inner wall of the pressure groove. When the aluminum alloy billet is placed in the pressure groove, the forging press presses down, causing the billet and the forging press to squeeze the extension block, causing the extension block to slide downwards. When the extension block slides to the surface of the support plate, it stops moving downwards due to the restriction of the support plate. Since there are connecting parts on both sides of the extension block, the extension block drives the connecting parts to press down as it slides down.

[0011] Preferably, a side clamping block is fixedly connected to the surface of the support plate near the second fixed shaft, and the side clamping block is fixedly connected to the surface of the second fixed shaft. A stop block is fixedly connected to the surface of the support plate away from the second fixed shaft, and the stop block is fixedly connected to the surface of the first fixed shaft and the surface of the connecting circular plate. The side clamping block and the stop block are arranged below the support plate, fixing the position of the extrusion assembly from both ends, so that the extrusion assembly is supported between the side clamping block and the stop block. When the connecting piece is pressed down, it drives the sleeve shaft to extrude the extrusion assembly, causing the fixed block to slide on the surface of the connecting circular plate.

[0012] Preferably, the connecting member includes a slide rod, an extension plate is fixedly connected to the surface of the slide rod, a connecting rod is fixedly connected to the surface of the extension plate, and a locking block is fixedly connected to the surface of the connecting rod. The locking block is fixedly connected to the outer surface of the sleeve shaft. The slide rod is connected to both sides of the extension block. When the extension block slides down, the slide rod slides down to above the horizontal plate extending from the extension plate, and then the connecting rod drives the sleeve shaft to move during the downward movement.

[0013] Preferably, the extrusion assembly includes two bent rods, each with a sleeve block fixedly connected to its two end surfaces. The sleeve blocks are threaded onto the surface of the sleeve shaft. When the forging press completes the forging and lifting process, the pressure on the extension block disappears. Because the extrusion pad has a spring-like structure, it springs upwards to reset after losing pressure, moving the sleeve shaft and causing the extension block to be lifted upwards by the sliding rod. This lifts the wheel hub blank formed in the pressure groove, detaching it from the pressure groove. This facilitates demolding of the wheel hub blank after forging, preventing it from getting stuck in the pressure groove and requiring manual demolding. Manual demolding can easily cause collisions between the wheel hub blank and the mold, resulting in blank damage.

[0014] Preferably, a frame plate is fixedly connected between the inner surfaces of the bent rod, and a fitting ring is fixedly connected at the middle of the outer surface of the frame plate. A compression pad is provided on the opposite side of the fitting ring, and the compression pad is compression-fitted to the frame plate. When the sleeve shaft drives the bent rod and the fixed block to slide on the surface of the connecting circular plate, the frame plate compresses the compression pad, causing the compression pad to contract downwards. Since the compression pad is filled with liquid, and the internal liquid is in a horizontal state, contraction stops when it is parallel to the liquid surface. This achieves the goal of using the liquid in the compression pad to increase the pressure-bearing capacity of the extension block, improve the stability of the extension block when sliding down, and prevent the extension block from shifting when it is pressed down by the forging press.

[0015] Preferably, the sliding assembly includes a connecting column, and two flexible plates are fixedly connected to the outer surface of the connecting column. The two flexible plates are symmetrical about the connecting column. A collar is fixedly connected to the surface of the flexible plate and is sleeved on the surface of the sleeve shaft. When the sleeve shaft connected to the locking block slides downward, it drives the collar sleeved on its surface to slide downward on the sliding shaft surface. During the sliding, the flexible plates on both sides compress the airbag, causing the gas inside the airbag to be discharged from the exhaust port. After the compression pad rebounds and resets, the sleeve shaft drives the collar to move upward, so that the compressed and deformed airbag is freed from the restraint of the flexible plates and can draw in gas through the exhaust port, which facilitates the reuse of the airbag.

[0016] Preferably, a slider is fixedly connected to the outer surface of the curved elastic plate, a sliding shaft is slidably connected to the surface of the slider, the sliding shaft is fixedly connected to the surface of the curved elastic plate, and the curved elastic plate is provided on both sides of the outer surface of the airbag.

[0017] This invention provides a forging die for the production of aluminum alloy automobile wheels. It has the following advantages: 1. In the forging die for producing aluminum alloy wheels for automobiles, when the forging press completes the forging and lifting process, the pressure on the extension block disappears. Since the extrusion pad has a spring-like structure, it bounces upward and resets after losing pressure, and drives the sleeve shaft to move. This causes the extension block to be lifted upward by the slide rod, lifting the wheel hub blank formed in the pressure groove and removing it from the pressure groove. This facilitates the demolding of the wheel hub blank after forging and prevents the wheel hub blank from getting stuck in the pressure groove. It also prevents the wheel hub blank from needing to be manually demolded. During the manual demolding process, the wheel hub blank is prone to collision with the die, causing damage to the blank.

[0018] II. The forging die for producing aluminum alloy automobile wheels uses a sleeve shaft to drive the bent rod and the fixed block to slide on the surface of the connecting circular plate. The frame plate squeezes the extrusion pad, causing the extrusion pad to contract downwards. Since the extrusion pad is filled with liquid and the liquid inside is in a horizontal state, the contraction stops when it is parallel to the liquid surface. This achieves the purpose of using the liquid inside the extrusion pad to increase the pressure-bearing capacity of the extension block, improve the stability of the extension block when it slides down, and prevent the extension block from shifting when it is pressed down by the forging press.

[0019] 3. The forging die for producing aluminum alloy wheels for automobiles has a sliding pressure component fitted on the outer side of the sleeve shaft. When the sleeve shaft moves down, it drives the sliding pressure component to squeeze the airbag, expelling the gas inside the airbag from the exhaust port. As the gas inside the airbags on both sides is slowly discharged, the squeezing component maintains a balanced state when it contracts, thus improving the stability of the squeezing component.

[0020] IV. The forging die for producing aluminum alloy wheels for automobiles has side clamping blocks and abutment blocks set below the support plate. The side clamping blocks and abutment blocks fix the position of the extrusion assembly from both ends, so that the extrusion assembly is supported between the side clamping blocks and abutment blocks. When the connecting piece is pressed down, it drives the sleeve shaft to extrude the extrusion assembly, causing the fixing block to slide on the surface of the connecting circular plate.

[0021] 5. The forging die for producing aluminum alloy automobile wheels, when the sleeve shaft connected to the clamping block slides downward, it drives the collar sleeved on its surface to slide downward on the surface of the sliding shaft. During the sliding, the bending spring plates on both sides compress the airbag, causing the gas in the airbag to be discharged from the exhaust port. After the compression pad rebounds and resets, the sleeve shaft drives the collar to move upward, so that the compressed and deformed airbag is freed from the restraint of the bending spring plate and draws in gas through the exhaust port, which facilitates the reuse of the airbag. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of a forging die for producing aluminum alloy automobile wheels according to the present invention. Figure 2 This is a schematic diagram of the molding assembly structure of the present invention; Figure 3 This is a schematic diagram of the connection structure between the molding assembly and the voltage stabilizing assembly of the present invention; Figure 4 This is a schematic cross-sectional view of the molding assembly of the present invention; Figure 5 This is an enlarged structural diagram of the voltage regulator component of the present invention; Figure 6 This is a schematic diagram of the connecting component structure of the present invention; Figure 7 This is a schematic diagram of the extrusion assembly structure of the present invention; Figure 8 This is a schematic diagram of the sliding pressure component structure of the present invention.

[0023] In the diagram: 1. First fixed shaft; 2. Compression molding assembly; 3. Base; 21. Side clamping block; 22. Extension block; 23. Connecting frame; 24. Abutment block; 25. Pressing groove; 26. Fixed plate; 27. Support plate; 28. Support frame; 29. ​​Limiting block; 4. Pressure stabilizing assembly; 41. Connecting piece; 411. Slide rod; 412. Extension plate; 413. Locking block; 414. Connecting rod; 42. Connecting circular plate; 43. Extrusion assembly ; 431, Frame plate; 432, Bending rod; 433, Fitting ring; 434, Sleeve block; 435, Extrusion pad; 44, Fixing block; 45, Sliding assembly; 451, Collar ring; 452, Slider; 453, Sliding shaft; 454, Bending spring plate; 455, Connecting column; 46, Exhaust hole; 47, Airbag; 48, Sleeve shaft; 5, Connecting block; 6, Second support rod; 7, Support bending frame; 8, Second fixed shaft; 9, First support rod. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0025] First embodiment, such as Figures 1-4As shown, the present invention provides a technical solution: a forging die for producing automotive aluminum alloy wheels, including a base 3, with a support frame 7 fixedly connected to the outer surface of the base 3. Two support frames 7 are provided, and a connecting block 5 is fixedly connected between the opposite surfaces of the two support frames 7. The connecting block 5 is fixedly connected to the surface of the base 3. A first support rod 9 is fixedly connected to the surface of the support frame 7 near the base 3. A first fixed shaft 1 is fixedly connected between the opposite surfaces of the first support rod 9. A second support rod 6 is fixedly connected to the surface of the support frame 7 away from the base 3. A second fixed shaft 8 is fixedly connected between the opposite surfaces of the second support rod 6. A die assembly 2 is fixedly connected between the upper surfaces of the second fixed shaft 8 and the first fixed shaft 1. Before forging, the aluminum alloy billet is heated, and the die assembly 2 is preheated. The aluminum alloy billet is placed in the die assembly 2, and the forging press is engaged with the die assembly 2. The aluminum alloy billet is forged by the forging press to form a wheel hub blank with a disc-shaped structure.

[0026] The die assembly 2 includes a support frame 28, a fixing plate 26 fixedly connected to the surface of the support frame 28, a pressing groove 25 fixedly connected to the surface of the fixing plate 26, an extension block 22 slidably connected to the lower surface of the pressing groove 25, limit blocks 29 fixedly connected to both sides of the outer surface of the support frame 28, a connecting frame 23 fixedly connected to the surface of the limit blocks 29, and a support plate 27 fixedly connected between the opposite surfaces of the connecting frame 23. The extension block 22 is slidably connected to the inner wall of the pressing groove 25. When the aluminum alloy billet is placed in the pressing groove 25, the forging press presses down, and the billet and the forging press compress the extension block 22, causing the extension block 22 to slide downward. When the extension block 22 slides to the surface of the support plate 27, it stops moving downward due to the restriction of the support plate 27. Since there are connecting parts 41 on both sides of the extension block 22, the extension block 22 drives the connecting parts 41 to press down when it slides down.

[0027] A side clamping block 21 is fixedly connected to the surface of the support plate 27 near the second fixed shaft 8. The side clamping block 21 is fixedly connected to the surface of the second fixed shaft 8. A stop block 24 is fixedly connected to the surface of the support plate 27 away from the second fixed shaft 8. The stop block 24 is fixedly connected to the surface of the first fixed shaft 1 and the surface of the connecting circular plate 42. The side clamping block 21 and the stop block 24 are arranged below the support plate 27. The side clamping block 21 and the stop block 24 fix the position of the extrusion assembly 43 from both ends, so that the extrusion assembly 43 is supported between the side clamping block 21 and the stop block 24. When the connecting piece 41 is pressed down, it drives the sleeve shaft 48 to extrude the extrusion assembly 43, causing the fixing block 44 to slide on the surface of the connecting circular plate 42.

[0028] Second embodiment, such as Figures 4-6As shown, the pressure stabilizing component 4 is fixedly connected between the opposing surfaces of the first fixed shaft 1 and the second fixed shaft 8. The pressure stabilizing component 4 includes a connecting circular plate 42, and two fixing blocks 44 are slidably connected to the outer surface of the connecting circular plate 42. The two fixing blocks 44 are symmetrical about the connecting circular plate 42. An extrusion component 43 is fixedly connected to the surface of the fixing blocks 44. There are two fixing blocks 44. The upper fixing block 44 is slidably connected to the surface of the connecting circular plate 42, and the lower fixing block 44 is used to restrict the position of the extrusion component 43. When the connecting piece 41 is pressed down, the sleeve shaft 48 moves down, causing the extrusion component 43 to contract downward, and causing the upper fixing block 44 to slide down.

[0029] Sleeve shafts 48 are fixedly connected to both sides of the outer surface of the extrusion assembly 43. A sliding pressure assembly 45 is fitted onto the surface of the sleeve shafts 48. An air bladder 47 is provided on the inner surface of the sliding pressure assembly 45. An exhaust port 46 is fixedly connected to the surface of the air bladder 47. The air bladder 47 and the sliding pressure assembly 45 are compressively fitted together. The sliding pressure assembly 45 is fitted onto the outer side of the sleeve shafts 48. When the sleeve shafts 48 move downward, they drive the sliding pressure assembly 45 to compress the air bladder 47, causing the gas inside the air bladder 47 to be discharged from the exhaust port 46. As the gas inside the air bladders 47 on both sides is slowly discharged, the extrusion assembly 43 maintains a balanced state when it contracts, improving the stability of the extrusion assembly 43.

[0030] The connecting member 41 includes a slide rod 411, an extension plate 412 fixedly connected to the surface of the slide rod 411, a connecting rod 414 fixedly connected to the surface of the extension plate 412, and a locking block 413 fixedly connected to the surface of the connecting rod 414. The locking block 413 is fixedly connected to the outer surface of the sleeve shaft 48. The slide rod 411 is connected to both sides of the extension block 22. When the extension block 22 slides down, the slide rod 411 slides down to above the horizontal plate extending from the extension plate 412, and then the connecting rod 414 drives the sleeve shaft 48 to move during the downward movement.

[0031] The outer surface of the sleeve shaft 48 is fixedly connected to a connector 41. There are two sets of connectors 41, which are symmetrical about the extrusion assembly 43. The connectors 41 are fixedly connected to the surface of the molding assembly 2.

[0032] The third embodiment, such as Figures 7-8As shown, the extrusion assembly 43 includes two bent rods 432. Each of the two ends of the bent rod 432 is fixedly connected to a sleeve block 434, which is threaded onto the surface of the sleeve shaft 48. When the forging press completes the forging and lifting process, the pressure on the extension block 22 disappears. Because the extrusion pad 435 has a spring-like structure, it bounces upwards and resets after losing pressure, driving the sleeve shaft 48 to move upwards. This causes the extension block 22 to be lifted upwards by the slide rod 411, lifting the wheel hub blank formed in the pressure groove 25 and separating it from the pressure groove 25. This facilitates the demolding of the wheel hub blank after forging, preventing the wheel hub blank from getting stuck in the pressure groove 25 and requiring manual demolding. Manual demolding can easily cause collisions between the wheel hub blank and the mold, resulting in damage to the blank.

[0033] A frame plate 431 is fixedly connected between the inner surfaces of the bent rod 432. A fitting ring 433 is fixedly connected at the middle of the outer surface of the frame plate 431. A compression pad 435 is provided on the opposite side of the fitting ring 433. The compression pad 435 is compression-fitted to the frame plate 431. When the sleeve shaft 48 drives the bent rod 432 and the fixed block 44 to slide on the surface of the connecting circular plate 42, the frame plate 431 compresses the compression pad 435, causing the compression pad 435 to contract downward. Since the compression pad 435 is filled with liquid and the liquid inside is in a horizontal state, the contraction stops when it is parallel to the liquid surface. This achieves the purpose of using the liquid in the compression pad 435 to improve the pressure-bearing capacity of the extension block 22, improve the stability of the extension block 22 when it slides down, and prevent the extension block 22 from shifting when it is pressed down by the forging press. The sliding assembly 45 includes a connecting post 455, on the outer surface of which a flexible plate 454 is fixedly connected. Two flexible plates 454 are provided, symmetrical about the connecting post 455. A collar 451 is fixedly connected to the surface of the flexible plate 454, and the collar 451 is sleeved on the surface of the shaft 48. When the shaft 48, which is connected to the locking block 413, slides downward, it drives the collar 451 on its surface to slide downward on the surface of the sliding shaft 453. During the sliding, the flexible plates 454 on both sides compress the airbag 47, causing the gas inside the airbag 47 to be discharged from the exhaust port 46. After the compression pad 435 rebounds and resets, the shaft 48 drives the collar 451 to move upward, so that the compressed and deformed airbag 47 is freed from the restraint of the flexible plates 454 and can draw in gas through the exhaust port 46, making it easy for the airbag 47 to be reused.

[0034] A slider 452 is fixedly connected to the outer surface of the curved plate 454, and a sliding shaft 453 is slidably connected to the surface of the slider 452. The sliding shaft 453 is fixedly connected to the surface of the curved plate 454, and the curved plate 454 is provided with airbags 47 on both sides of its outer surface.

[0035] During use, the aluminum alloy billet is heated before forging, and the die assembly 2 is preheated. The aluminum alloy billet is placed in the die assembly 2, and the forging press is matched with the die assembly 2. The aluminum alloy billet is forged by the forging press to form a wheel hub blank with a disc-shaped structure.

[0036] The extension block 22 is slidably connected to the inner wall of the pressure groove 25. When the aluminum alloy billet is placed in the pressure groove 25 and the forging press presses down, the billet and the forging press press squeeze the extension block 22, causing the extension block 22 to slide down. When the extension block 22 slides to the surface of the support plate 27, it stops moving down due to the restriction of the support plate 27. Since there are connecting parts 41 on both sides of the extension block 22, the extension block 22 drives the connecting parts 41 to press down when it slides down.

[0037] A side clamping block 21 and abutment block 24 are provided below the support plate 27. The side clamping block 21 and abutment block 24 fix the position of the extrusion component 43 from both ends, so that the extrusion component 43 is supported between the side clamping block 21 and abutment block 24. When the connecting piece 41 is pressed down, it drives the sleeve shaft 48 to extrude the extrusion component 43, causing the fixing block 44 to slide on the surface of the connecting circular plate 42.

[0038] There are two fixing blocks 44. The upper fixing block 44 is slidably connected to the surface of the connecting circular plate 42, and the lower fixing block 44 is used to restrict the position of the extrusion assembly 43. When the connecting piece 41 is pressed down, the sleeve shaft 48 moves down, causing the extrusion assembly 43 to contract downward, and causing the upper fixing block 44 to slide down.

[0039] During forging, a sliding pressure assembly 45 is fitted on the outer side of the sleeve shaft 48. When the sleeve shaft 48 moves down, it drives the sliding pressure assembly 45 to squeeze the air bag 47, and the gas in the air bag 47 is discharged from the exhaust hole 46. As the gas in the air bags 47 on both sides is slowly discharged, the compression assembly 43 maintains a balanced state when it contracts, thus improving the stability of the compression assembly 43.

[0040] The slide bar 411 is connected to both sides of the extension block 22. When the extension block 22 slides down, the slide bar 411 slides down to the top of the horizontal plate extended from the extension plate 412, and then the connecting rod 414 drives the sleeve shaft 48 to move when it slides down.

[0041] When the sleeve shaft 48 drives the bent rod 432 and the fixed block 44 to slide on the surface of the connecting circular plate 42, the frame plate 431 squeezes the extrusion pad 435, causing the extrusion pad 435 to contract downward. Since the extrusion pad 435 is filled with liquid and the liquid inside is in a horizontal state, it stops contracting when it is parallel to the liquid surface. This achieves the purpose of using the liquid inside the extrusion pad 435 to improve the pressure-bearing capacity of the extension block 22, improve the stability of the extension block 22 when it slides down, and prevent the extension block 22 from shifting when it is pressed down by the forging press.

[0042] When the sleeve 48 connected to the locking block 413 slides downward, it causes the collar 451 on its surface to slide downward on the surface of the sliding shaft 453. During the sliding, the curved elastic plates 454 on both sides squeeze the airbag 47, causing the gas in the airbag 47 to be discharged from the exhaust port 46.

[0043] After forging, when the forging press completes the forging lifting, the pressure on the extension block 22 disappears. Since the extrusion pad 435 is a spring-like structure, it bounces upward and resets after losing pressure, and drives the sleeve shaft 48 to move. This causes the extension block 22 to be lifted upward by the slide rod 411, lifting the wheel hub blank formed in the pressure groove 25 and removing it from the pressure groove 25. This facilitates the demolding of the wheel hub blank after forging and prevents the wheel hub blank from getting stuck in the pressure groove 25. It also prevents the wheel hub blank from needing to be manually demolded, as manual demolding can easily cause collisions between the wheel hub blank and the mold, resulting in damage to the blank.

[0044] After the compression pad 435 springs back to its original position, the sleeve shaft 48 drives the collar 451 to move upward, so that the compressed and deformed airbag 47 is freed from the restraint of the bending plate 454 and can draw in gas through the exhaust port 46, making it easy for the airbag 47 to be reused.

[0045] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A forging die for producing aluminum alloy wheels for automobiles, comprising a base (3), wherein a supporting bend (7) is fixedly connected to the outer surface of the base (3), two supporting bends (7) are provided, and a connecting block (5) is fixedly connected between the opposing surfaces of the two supporting bends (7), the connecting block (5) being fixedly connected to the surface of the base (3), characterized in that: A first support rod (9) is fixedly connected to the surface of the support frame (7) near the base (3), and a first fixed shaft (1) is fixedly connected between the opposite surfaces of the first support rod (9). A second support rod (6) is fixedly connected to the surface of the support frame (7) away from the base (3), and a second fixed shaft (8) is fixedly connected between the opposite surfaces of the second support rod (6). A molding assembly (2) is fixedly connected between the upper surfaces of the second fixed shaft (8) and the first fixed shaft (1). The forging die for producing automotive aluminum alloy wheels also includes: A voltage stabilizing component (4) is fixedly connected between the opposing surfaces of a first fixed shaft (1) and a second fixed shaft (8). The voltage stabilizing component (4) includes a connecting circular plate (42). A fixing block (44) is slidably connected to the outer surface of the connecting circular plate (42). There are two fixing blocks (44), which are symmetrical about the connecting circular plate (42). An extrusion component (43) is fixedly connected to the surface of the fixing block (44). The outer surface of the extrusion assembly (43) is fixedly connected to the two sides of the sleeve shaft (48), the surface of the sleeve shaft (48) is fitted with the sliding pressure assembly (45), the inner surface of the sliding pressure assembly (45) is provided with the air bladder (47), the surface of the air bladder (47) is fixedly connected with the exhaust hole (46), and the air bladder (47) is extruded and adapted to the sliding pressure assembly (45).

2. The forging die for producing automotive aluminum alloy wheels according to claim 1, characterized in that: The outer surface of the sleeve shaft (48) is fixedly connected to a connector (41). There are two sets of connectors (41), which are symmetrical about the extrusion assembly (43) and are fixedly connected to the surface of the molding assembly (2).

3. The forging die for producing automotive aluminum alloy wheels according to claim 2, characterized in that: The molding assembly (2) includes a support frame (28), a fixing plate (26) is fixedly connected to the surface of the support frame (28), a pressing groove (25) is fixedly connected to the surface of the fixing plate (26), an extension block (22) is slidably connected to the lower surface of the pressing groove (25), limit blocks (29) are fixedly connected to both sides of the outer surface of the support frame (28), a connecting frame (23) is fixedly connected to the surface of the limit block (29), and a support plate (27) is fixedly connected between the opposite surfaces of the connecting frame (23).

4. A forging die for producing automotive aluminum alloy wheels according to claim 3, characterized in that: A side clamp (21) is fixedly connected to the surface of the support plate (27) near the second fixed shaft (8). The side clamp (21) is fixedly connected to the surface of the second fixed shaft (8). A stop block (24) is fixedly connected to the surface of the support plate (27) away from the second fixed shaft (8). The stop block (24) is fixedly connected to the surface of the first fixed shaft (1) and the stop block (24) is fixedly connected to the surface of the connecting circular plate (42).

5. A forging die for producing automotive aluminum alloy wheels according to claim 2, characterized in that: The connector (41) includes a slide rod (411), an extension plate (412) is fixedly connected to the surface of the slide rod (411), a connecting rod (414) is fixedly connected to the surface of the extension plate (412), a locking block (413) is fixedly connected to the surface of the connecting rod (414), and the locking block (413) is fixedly connected to the outer surface of the sleeve shaft (48).

6. A forging die for producing automotive aluminum alloy wheels according to claim 1, characterized in that: The extrusion assembly (43) includes a bent rod (432), two bent rods (432) are provided, and a sleeve block (434) is fixedly connected to both end surfaces of the bent rod (432), and the sleeve block (434) is threadedly connected to the surface of the sleeve shaft (48).

7. A forging die for producing automotive aluminum alloy wheels according to claim 6, characterized in that: A frame plate (431) is fixedly connected between the two inner surfaces of the bent rod (432). A fitting ring (433) is fixedly connected at the middle of the outer surface of the frame plate (431). A compression pad (435) is provided between the opposite surfaces of the fitting ring (433) of the upper frame plate (431) and the fitting ring (433) of the lower frame plate (431). The compression pad (435) is squeezed and adapted to the frame plate (431).

8. A forging die for producing automotive aluminum alloy wheels according to claim 1, characterized in that: The sliding assembly (45) includes a connecting post (455), and a bending spring plate (454) is fixedly connected to the outer surface of the connecting post (455). There are two bending spring plates (454), which are symmetrical about the connecting post (455). A collar (451) is fixedly connected to the surface of the bending spring plate (454), and the collar (451) is sleeved on the surface of the sleeve shaft (48).

9. A forging die for producing automotive aluminum alloy wheels according to claim 8, characterized in that: A slider (452) is fixedly connected to the outer surface of the upper curved plate (454), and a sliding shaft (453) is slidably connected to the surface of the slider (452). The sliding shaft (453) is fixedly connected to the surface of the lower curved plate (454), and the curved plate (454) is arranged on both sides of the outer surface of the airbag (47).

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