Forging die for aluminum hub of passenger car

Abstract

The utility model provides a passenger car aluminum hub forging die, which belongs to the field of hub forging and comprises a fixing frame, an upper spinning die and a lower spinning die are respectively arranged at the top and the bottom of the inner wall of the fixing frame, first through grooves are formed in two sides of the inner wall of the fixing frame, and first adjusting components are arranged on the inner walls of the two first through grooves. A mounting frame is fixedly connected to one side of the fixing frame, a second penetrating groove is formed in the inner wall of the mounting frame, and a second adjusting assembly is arranged on the inner wall of the second penetrating groove. Two first electric hydraulic rods drive two first sliding seats to move in two first through grooves, the first sliding seats are matched with a first strip-shaped graduated scale to achieve height adjustment, two first electric push rods drive a plurality of first limiting rods to move, and a first spinning roller and a second spinning roller are adjusted to proper positions in cooperation with surface scales; and the first spinning roller and the second spinning roller are driven to spin from top to bottom according to a set spinning program path, and machining of the lower rim of the wheel hub is completed.

Description

Technical Field

[0001] The utility model relates to the field of wheel hub forging, in particular to a forging die for an aluminum wheel hub of a passenger car. Background Art

[0002] Spinning is to fix a flat plate or hollow blank on the die of a spinning machine. While the blank rotates with the spindle of the machine tool, a spinning wheel or a driving rod is used to pressurize the blank to produce local plastic deformation. Spinning can complete the complex geometric features of various complex sheet metal parts. It is a special method of sheet metal forming. A double-sided spinning die for a wheel hub disclosed in the application number CN202222288747.4 is retrieved. It is recorded that the left and right sides of the upper die and the lower die are respectively provided with an upper spinning forming surface and a first lower spinning forming surface. The wheel hub blank is formed by the upper die. The combination of the pressure die and the lower pressure die, as well as the upper spinning forming surfaces on the left and right sides and the first lower spinning forming surface, enable the wheel hub casting to be rotationally formed in the double-sided spinning mold of the present application, thereby reducing the number of times in the spinning process, reducing the spinning forming time, and improving the efficiency of spinning. However, the above description still has the following defects in actual use: the wheel hub spinning mold is not convenient for spinning process operations on the hub surface when in use, and the device lacks a flexible adjustment structure. Therefore, it is necessary to design a practical passenger car aluminum wheel forging mold. Utility Model Content

[0003] The utility model aims to provide a forging die for an aluminum wheel hub of a passenger car to solve the problems raised by the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a forging die for an aluminum wheel hub for a passenger car, comprising a fixing frame, a spinning upper die and a spinning lower die are respectively provided at the top and bottom of the inner wall of the fixing frame, a first through groove is provided on both sides of the inner wall of the fixing frame, and the inner walls of the two first through grooves are provided with a first adjustment component, a mounting frame is fixedly connected to one side of the fixing frame, a second through groove is provided on the inner wall of the mounting frame, and a second adjustment component is provided on the inner wall of the second through groove;

[0005] The first adjusting component includes two first electric hydraulic rods installed on the top of the inner walls of the two first through grooves, the telescopic ends of the two first electric hydraulic rods are fixedly connected to the first slide seat, the middle part of one side of the two first slide seats is fixedly connected to the two first mounting blocks through the first electric push rod, the four corners of the two first slide seats are interspersed with first limiting rods, one end of several of the first limiting rods is provided with a first limiting block, the other ends of several of the first limiting rods are fixedly connected to one side of the two first mounting blocks, the bottoms of the two first mounting blocks are provided with mounting grooves, the tops of the inner walls of the two mounting grooves are provided with first motors, the surface of the output shaft of the first motor is provided with a limiting disk, the side of the limiting disk is rotatably connected to the annular groove provided on the edge of the inner wall of the mounting groove, and the bottoms of the two output shafts are respectively fixedly connected with a first rotating wheel and a second rotating wheel;

[0006] The second adjusting component includes a second electric hydraulic rod installed at the top of the inner wall of the second through-groove, the telescopic end of the second electric hydraulic rod is fixedly connected to the second slide seat, the middle part of one side of the second slide seat is fixedly connected to one side of the mounting plate through the second electric push rod, the four corners of the second slide seat are interlaced with second limit rods, one end of several second limit rods is provided with a second limit block, the other ends of several second limit rods are fixedly connected to the four corners of the mounting plate, the other side of the mounting plate is fixedly connected to the second mounting block, the top and bottom of the second mounting block are provided with a moving groove, the inner walls of the two moving grooves are slidably connected with a moving seat, one side of the two moving seats is fixedly connected to the telescopic ends of the two electric telescopic rods, the other sides of the two moving seats are provided with a second motor, the output shafts of the two second motors are respectively fixedly connected to the third rotary wheel and the split rotary wheel, and two through holes are provided at both ends of the moving seat, and the inner walls of the two through holes are interlaced with the surfaces of the two fixed rods provided on the inner wall of the moving groove.

[0007] As a preferred solution of the utility model: an upper ejector and a lower ejector are respectively provided at opposite ends of the spinning upper die and the spinning lower die, and a hub forging is arranged between the upper ejector and the lower ejector.

[0008] As a preferred solution of the utility model: first sliding blocks are fixedly connected to both sides of the first sliding seat, the surfaces of the two first sliding blocks are slidably connected to the first sliding grooves provided on both sides of the inner wall of the first through groove, a first through hole is provided on the top of the first sliding block, and the inner wall of the first through hole is interlaced with the first guide rod provided on the inner wall of the first sliding groove.

[0009] As a preferred solution of the utility model: second sliding blocks are fixedly connected to both sides of the second sliding seat, the surfaces of the two second sliding blocks are slidably connected to the second sliding grooves provided on both sides of the inner wall of the second through groove, a second through hole is provided on the top of the second sliding block, and the inner wall of the second through hole is interlaced with the second guide rod provided on the inner wall of the second sliding groove.

[0010] As a preferred solution of the utility model: first insertion holes are respectively provided at the four corners of the first slide seat, and the inner walls of several of the first insertion holes are interlaced and connected with the surfaces of several first limit rods; second insertion holes are respectively provided at the four corners of the second slide seat, and the inner walls of several of the second insertion holes are interlaced and connected with the surfaces of several second limit rods, and the surfaces of several of the first limit rods and second limit rods are provided with scale lines.

[0011] As a preferred solution of the utility model: the edges on both sides of the inner wall of the first through-groove are provided with a first strip scale, and the edges on both sides of the inner wall of the second through-groove are provided with a second strip scale.

[0012] As a preferred solution of the utility model: a control panel is provided on one side of the fixed frame, and the first electric hydraulic rod, the first electric push rod, the first motor, the second electric hydraulic rod, the second electric push rod, the electric telescopic rod and the second motor are all electrically connected to an external power supply through the control panel.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) two first electric hydraulic rods are used to drive two first slides to move on the inner walls of the two first through grooves, and the two first slides drive two groups of first slide blocks to move on the surfaces of the first guide rods on the inner walls of the two groups of first slide grooves, thereby limiting their movement. The two first slides cooperate with the two groups of first bar scales to drive the first rotating wheel and the second rotating wheel on the surface to move, so as to achieve height adjustment. The two first electric push rods on the two first slides drive a plurality of first limiting rods to move, and the first rotating wheel and the second rotating wheel are adjusted to a suitable position in cooperation with the scales on the surfaces of the first limiting rods. The two first motors are used to drive the first rotating wheel and the second rotating wheel to rotate, and the first rotating wheel and the second rotating wheel are driven to perform spinning from top to bottom according to the set spinning program path diagram, so as to complete the processing of the lower rim of the wheel hub;

[0015] (2) The second slide is driven by the second electric hydraulic rod to move on the inner wall of the second through groove, and the second slide drives the two second sliding blocks to move on the surface of the second guide rods on the inner walls of the two second slide grooves, thereby limiting their movement. The second slide cooperates with the two second bar scales to drive the third rotary wheel and the split rotary wheel on the surface to move, so as to achieve height adjustment. The two electric telescopic rods are used to drive the two moving seats to move in the two moving grooves, and the moving seats move on the surfaces of the two fixed rods to ensure the stability of movement. The two moving seats drive the third rotary wheel and the split rotary wheel to move, and the third rotary wheel or the split rotary wheel is selected to be adjusted according to the set spinning program; the second electric push rod on the second slide drives a plurality of second limiting rods to move, and the third rotary wheel or the split rotary wheel is adjusted to a suitable position in accordance with the scale on the surface of the second limiting rod. The two second motors are used to drive the third rotary wheel or the split rotary wheel for spinning. According to the process requirements, the first rotary wheel and the second rotary wheel can be cooperated to spin from bottom to top to complete the processing of the rim on the wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first adjustment component of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the second adjustment component of the utility model.

[0020] In the figure: 1, fixing frame; 11, spinning upper die; 12, spinning lower die; 13, first through-slot; 14, mounting frame; 15, second through-slot; 16, upper ejector; 17, lower ejector; 18, first slide; 19, second slide; 110, first bar scale; 111, second bar scale; 112, control panel; 2, first adjustment assembly; 21, first electric hydraulic rod; 22, first slide; 23, first electric push rod; 24, first mounting block; 25, first limit rod; 26, first limit block; 27, mounting slot; 28, first motor; 29, Limiting plate; 210, annular groove; 211, first rotating wheel; 212, second rotating wheel; 213, first sliding block; 214, first guide rod; 3, second adjusting assembly; 31, second electric hydraulic rod; 32, second sliding seat; 33, second electric push rod; 34, mounting plate; 35, second limiting rod; 36, second limiting block; 37, second mounting block; 38, moving groove; 39, moving seat; 310, electric telescopic rod; 311, second motor; 312, third rotating wheel; 313, splitting rotating wheel; 314, fixing rod; 315, second sliding block; 316, second guide rod. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 A forging die for an aluminum wheel hub for a passenger car comprises a fixing frame 1, a spinning upper die 11 and a spinning lower die 12 are respectively provided at the top and bottom of the inner wall of the fixing frame 1, first through grooves 13 are provided on both sides of the inner wall of the fixing frame 1, and first adjustment components 2 are provided on the inner walls of the two first through grooves 13, a mounting frame 14 is fixedly connected to one side of the fixing frame 1, a second through groove 15 is provided on the inner wall of the mounting frame 14, and a second adjustment component 3 is provided on the inner wall of the second through groove 15;

[0023] See also Figure 3 The first adjustment component 2 includes two first electric hydraulic rods 21 installed on the top of the inner wall of the two first through grooves 13, the telescopic ends of the two first electric hydraulic rods 21 are fixedly connected with the first slide 22, the middle part of one side of the two first slides 22 is fixedly connected with the two first mounting blocks 24 through the first electric push rod 23, the four corners of the two first slides 22 are interspersed with first limiting rods 25, one end of several first limiting rods 25 is provided with a first limiting block 26, the other ends of several first limiting rods 25 are fixedly connected with one side of the two first mounting blocks 24, the bottom of the two first mounting blocks 24 is provided with a mounting groove 27, the top of the inner wall of the two mounting grooves 27 is provided with a first motor 28, the surface of the output shaft of the first motor 28 is provided with a limiting plate 29, the side of the limiting plate 29 is rotatably connected with the annular groove 210 provided with the inner wall edge of the mounting groove 27, and the bottom of the two output shafts are respectively fixedly connected with a first rotating wheel 211 and a second rotating wheel 212.

[0024] During specific use: the two first electric hydraulic rods 21 drive the two first slides 22 to move on the inner walls of the two first through grooves 13, the two first slides 22 drive the two groups of first sliding blocks 213 to move on the surfaces of the first guide rods 214 on the inner walls of the two groups of first slide grooves 18, thereby limiting their movement, the two first slides 22 cooperate with the two groups of first bar scales 110 to drive the first rotating wheels 211 and the second rotating wheels 212 on the surfaces to move, so as to achieve height adjustment, the two first electric push rods 23 on the two first slides 22 drive a plurality of first limiting rods 25 to move, and the first rotating wheels 211 and the second rotating wheels 212 are adjusted to appropriate positions in cooperation with the scales on the surfaces of the first limiting rods 25, the two first motors 28 are used to drive the first rotating wheels 211 and the second rotating wheels 212 to rotate, and the first rotating wheels 211 and the second rotating wheels 212 are driven to perform spinning from top to bottom according to the set spinning program path diagram, so as to complete the processing of the lower rim of the wheel hub.

[0025] See also Figure 4 The second adjustment assembly 3 includes a second electric hydraulic rod 31 installed on the top of the inner wall of the second through groove 15, the telescopic end of the second electric hydraulic rod 31 is fixedly connected to a second slide seat 32, the middle part of one side of the second slide seat 32 is fixedly connected to one side of the mounting plate 34 through a second electric push rod 33, the four corners of the second slide seat 32 are interspersed with second limiting rods 35, one end of a plurality of second limiting rods 35 is provided with a second limiting block 36, the other ends of the plurality of second limiting rods 35 are fixedly connected to the four corners of the mounting plate 34, and the other side of the mounting plate 34 is fixedly connected to a second The mounting block 37 and the second mounting block 37 are both provided with movable grooves 38 at the top and bottom, and the inner walls of the two movable grooves 38 are slidably connected with movable seats 39, one side of the two movable seats 39 is fixedly connected to the telescopic ends of the two electric telescopic rods 310, and the other side of the two movable seats 39 is provided with a second motor 311, and the output shafts of the two second motors 311 are respectively fixedly connected with the third rotary wheel 312 and the splitting rotary wheel 313, and two through holes are provided at both ends of the movable seat 39, and the inner walls of the two through holes are interlaced and connected with the surfaces of the two fixed rods 314 provided on the inner walls of the movable grooves 38.

[0026] When in use, the second electric hydraulic rod 31 drives the second slide 32 to move on the inner wall of the second through groove 15, and the second slide 32 drives the two second sliders 315 to move on the surface of the second guide rod 316 on the inner wall of the two second slide grooves 19 to limit their movement. The second slide 32 cooperates with the two second bar scales 111 to drive the third rotary wheel 312 and the split rotary wheel 313 on the surface to move to achieve height adjustment. The two electric telescopic rods 310 drive the two moving seats 39 to move in the two moving grooves 38, and the moving seats 39 move on the surfaces of the two fixed rods 314 to ensure the stability of the movement. The movable seat 39 drives the third rotating wheel 312 and the split rotating wheel 313 to move, and the third rotating wheel 312 or the split rotating wheel 313 is adjusted according to the set spinning program; the second electric push rod 33 on the second slide seat 32 drives a plurality of second limiting rods 35 to move, and the third rotating wheel 312 or the split rotating wheel 313 is adjusted to a suitable position in conjunction with the scale on the surface of the second limiting rod 35, and the two second motors 311 drive the third rotating wheel 312 or the split rotating wheel 313 to perform spinning, and according to the process requirements, the first rotating wheel 211 and the second rotating wheel 212 can be spun from bottom to top to complete the processing of the rim on the wheel hub.

[0027] See also Figure 2 An upper ejector 16 and a lower ejector 17 are respectively disposed at opposite ends of the spinning upper die 11 and the spinning lower die 12 , and a wheel hub forging is disposed between the upper ejector 16 and the lower ejector 17 .

[0028] When used specifically, the spinning upper die 11 and the spinning lower die 12 cooperate with the upper ejector 16 and the lower ejector 17 to facilitate spinning and fixing the wheel hub forging.

[0029] See also Figure 3 The first slide seat 22 is fixedly connected with a first slider 213 on both sides, and the surfaces of the two first sliders 213 are slidably connected with the first slide grooves 18 provided on both sides of the inner wall of the first through groove 13. A first through hole is provided on the top of the first slider 213, and the inner wall of the first through hole is interlaced with the first guide rod 214 provided on the inner wall of the first slide groove 18.

[0030] During specific use, the two first sliding blocks 213 cooperate with the first through holes to move on the surface of the first guide rods 214 in the two first sliding grooves 18, so as to facilitate the movement of the first sliding seat 22 to be limited.

[0031] See also Figure 4 A second slider 315 is fixedly connected to both sides of the second slide seat 32, and the surfaces of the two second sliders 315 are slidably connected to the second slide grooves 19 provided on both sides of the inner wall of the second through groove 15. A second through hole is provided on the top of the second slider 315, and the inner wall of the second through hole is interlaced with the second guide rod 316 provided on the inner wall of the second slide groove 19.

[0032] During specific use, the two second sliding blocks 315 cooperate with the second through holes to move on the surface of the second guide rods 316 in the two second sliding grooves 19, so as to facilitate the movement of the second sliding seat 32 to be limited.

[0033] See also Figure 3 The first slide seat 22 has four corners with first insertion holes, and the inner walls of the first insertion holes are connected with the surfaces of the first limiting rods 25 through insertion. The second slide seat 32 has four corners with second insertion holes, and the inner walls of the second insertion holes are connected with the surfaces of the second limiting rods 35 through insertion. The surfaces of the first limiting rods 25 and the second limiting rods 35 are provided with scale lines.

[0034] During specific use, the two first electric push rods 23 on the two first slide seats 22 drive the plurality of first limiting rods 25 to move, and the first rotating wheel 211 and the second rotating wheel 212 are adjusted to appropriate positions in coordination with the scales on the surfaces of the first limiting rods 25 .

[0035] See also Figure 2 The edges of both sides of the inner wall of the first through-slot 13 are provided with a first strip scale 110 , and the edges of both sides of the inner wall of the second through-slot 15 are provided with a second strip scale 111 .

[0036] During specific use, the second electric push rod 33 on the second slide seat 32 drives the plurality of second limiting rods 35 to move, and the scales on the surfaces of the second limiting rods 35 are used to adjust the third rotating wheel 312 or the split rotating wheel 313 to a suitable position to complete the subsequent spinning process.

[0037] See also Figure 1 A control panel 112 is provided on one side of the fixing frame 1, and the first electric hydraulic rod 21, the first electric push rod 23, the first motor 28, the second electric hydraulic rod 31, the second electric push rod 33, the electric telescopic rod 310 and the second motor 311 are all electrically connected to the external power supply through the control panel 112.

[0038] During specific use: the control panel 112 is used to control the first electric hydraulic rod 21, the first electric push rod 23, the first motor 28, the second electric hydraulic rod 31, the second electric push rod 33, the electric telescopic rod 310 and the second motor 311, so as to facilitate the device to perform spinning forging on the wheel hub forging.

[0039] When in use, the two first electric hydraulic rods 21 drive the two first slides 22 to move in the two first through grooves 13, and the two first slides 22 drive the two groups of first sliders 213 to move on the surfaces of the first guide rods 214 on the inner walls of the two groups of first slide grooves 18 to limit their movement. The two first slides 22 cooperate with the two groups of first bar scales 110 to drive the first rotating wheel 211 and the second rotating wheel 212 to move to achieve height adjustment. The two first electric push rods 23 on the two first slides 22 drive a plurality of first limiting rods 25 The first rotary wheel 211 and the second rotary wheel 212 are adjusted to a suitable position in coordination with the scale on the surface of the first limiting rod 25. The two first motors 28 drive the first rotary wheel 211 and the second rotary wheel 212 to rotate, and drive the first rotary wheel 211 and the second rotary wheel 212 to spin from top to bottom according to the set spinning program path diagram to complete the processing of the lower rim of the wheel hub; the second electric hydraulic rod 31 drives the second slide seat 32 to move on the inner wall of the second through groove 15, and the second slide seat 32 drives the two second sliders 315 to move between the two The second guide rod 316 on the inner wall of the second slide slot 19 moves on the surface to limit its movement. The second slide seat 32 cooperates with the two second bar scales 111 to drive the third rotary wheel 312 and the split rotary wheel 313 on the surface to move to achieve height adjustment. The two electric telescopic rods 310 drive the two moving seats 39 to move in the two moving grooves 38. The moving seats 39 move on the surfaces of the two fixed rods 314 to ensure the stability of the movement. The two moving seats 39 drive the third rotary wheel 312 and the split rotary wheel 313 to move according to the setting. The spinning program selects to adjust the third rotating wheel 312 or the split rotating wheel 313; the second electric push rod 33 on the second slide 32 drives the plurality of second limiting rods 35 to move, and the third rotating wheel 312 or the split rotating wheel 313 is adjusted to a suitable position in conjunction with the scale on the surface of the second limiting rod 35, and the two second motors 311 drive the third rotating wheel 312 or the split rotating wheel 313 to perform spinning, and according to the process requirements, the first rotating wheel 211 and the second rotating wheel 212 can be spun from bottom to top to complete the processing of the rim on the wheel hub.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A forging die for an aluminum wheel hub for a passenger car, characterized in that: The invention comprises a fixing frame (1), wherein a spinning upper die (11) and a spinning lower die (12) are respectively arranged at the top and the bottom of the inner wall of the fixing frame (1), first through grooves (13) are respectively arranged on both sides of the inner wall of the fixing frame (1), and the inner walls of the two first through grooves (13) are respectively arranged with a first adjustment component (2), and a mounting frame (14) is fixedly connected to one side of the fixing frame (1), and a second through groove (15) is arranged on the inner wall of the mounting frame (14), and a second adjustment component (3) is arranged on the inner wall of the second through groove (15); The first adjustment assembly (2) comprises two first electric hydraulic rods (21) mounted on the top of the inner wall of the two first through grooves (13); the telescopic ends of the two first electric hydraulic rods (21) are fixedly connected to the first slide seats (22); the middle parts of one side of the two first slide seats (22) are fixedly connected to the two first mounting blocks (24) through the first electric push rods (23); the four corners of the two first slide seats (22) are interlaced with first limit rods (25); one end of a plurality of the first limit rods (25) is provided with a first limit block (26); The other end of the first limiting rod (25) is fixedly connected to one side of the two first mounting blocks (24); the bottom of the two first mounting blocks (24) is provided with a mounting groove (27); the top of the inner wall of the two mounting grooves (27) is provided with a first motor (28); the surface of the output shaft of the first motor (28) is provided with a limiting plate (29); the side of the limiting plate (29) is rotatably connected to an annular groove (210) provided on the edge of the inner wall of the mounting groove (27); the bottom of the two output shafts is respectively fixedly connected with a first rotating wheel (211) and a second rotating wheel (212); The second adjustment assembly (3) comprises a second electric hydraulic rod (31) mounted on the top of the inner wall of the second through groove (15); the telescopic end of the second electric hydraulic rod (31) is fixedly connected to a second slide seat (32); the middle part of one side of the second slide seat (32) is fixedly connected to one side of a mounting plate (34) through a second electric push rod (33); the four corners of the second slide seat (32) are interspersed with second limiting rods (35); one end of a plurality of the second limiting rods (35) is provided with a second limiting block (36); the other ends of the plurality of the second limiting rods (35) are fixedly connected to the four corners of the mounting plate (34); the other side of the mounting plate (34) is fixedly connected to a second A mounting block (37), a movable groove (38) is provided at the top and the bottom of the second mounting block (37), the inner walls of the two movable grooves (38) are slidably connected with a movable seat (39), one side of the two movable seats (39) is fixedly connected to the telescopic ends of two electric telescopic rods (310), the other side of the two movable seats (39) is provided with a second motor (311), the output shafts of the two second motors (311) are respectively fixedly connected with a third rotary wheel (312) and a split rotary wheel (313), two through holes are provided at both ends of the movable seat (39), and the inner walls of the two through holes are interlaced and connected with the surfaces of two fixed rods (314) provided on the inner walls of the movable groove (38).

2. The forging die for an aluminum wheel hub for a passenger car according to claim 1, characterized in that: An upper ejector (16) and a lower ejector (17) are respectively provided at opposite ends of the spinning upper die (11) and the spinning lower die (12), and a wheel hub forging is provided between the upper ejector (16) and the lower ejector (17).

3. The forging die for an aluminum wheel hub for a passenger car according to claim 1, characterized in that: The first sliding seat (22) is fixedly connected with a first sliding block (213) on both sides, and the surfaces of the two first sliding blocks (213) are slidably connected with the first sliding grooves (18) provided on both sides of the inner wall of the first through groove (13). The top of the first sliding block (213) is provided with a first through hole, and the inner wall of the first through hole is interlaced with the first guide rod (214) provided on the inner wall of the first sliding groove (18).

4. The forging die for an aluminum wheel hub for a passenger car according to claim 1, characterized in that: The second sliding seat (32) is fixedly connected with a second slider (315) on both sides, and the surfaces of the two second sliders (315) are slidably connected with the second slide grooves (19) provided on both sides of the inner wall of the second through groove (15). The top of the second slider (315) is provided with a second through hole, and the inner wall of the second through hole is interlaced with the second guide rod (316) provided on the inner wall of the second slide groove (19).

5. The forging die for an aluminum wheel hub for a passenger car according to claim 1, characterized in that: The first slide seat (22) is provided with first insertion holes at four corners, and the inner walls of a plurality of the first insertion holes are connected to the surfaces of a plurality of first limit rods (25) through insertion. The second slide seat (32) is provided with second insertion holes at four corners, and the inner walls of a plurality of the second insertion holes are connected to the surfaces of a plurality of second limit rods (35) through insertion. The surfaces of a plurality of the first limit rods (25) and the second limit rods (35) are provided with scale lines.

6. The forging die for an aluminum wheel hub for a passenger car according to claim 1, characterized in that: The edges on both sides of the inner wall of the first through-groove (13) are provided with a first scale bar (110), and the edges on both sides of the inner wall of the second through-groove (15) are provided with a second scale bar (111).

7. The forging die for an aluminum wheel hub for a passenger car according to claim 1, characterized in that: A control panel (112) is provided on one side of the fixing frame (1); the first electric hydraulic rod (21), the first electric push rod (23), the first motor (28), the second electric hydraulic rod (31), the second electric push rod (33), the electric telescopic rod (310) and the second motor (311) are all electrically connected to an external power supply via the control panel (112).

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