A press for processing automobile parts wheels

Abstract

The present invention relates to the technical field of wheel hub production and processing. The present invention provides a press for processing automobile hub parts, which is used to punch out a plurality of fixed holes arranged along the circumference in the middle of the spoke. The press comprises a die base and a punching head. The die base is used to place the spoke to be punched. The punching head is lifted and arranged above the die base. The punching head can punch the spoke located on the die base after lifting. The bottom of the punching head has at least three punching rods. The at least three punching rods are arranged along the circumference. The punching rods have a punching surface, and the punching surface faces the die base. The at least three punching rods are divided into at least two groups, each group has at least one punching rod. The punching surfaces in each group are coplanar, and the distances from the punching surfaces to the die base between any two groups are different. The above technical solution solves the technical problem in the related art that the press cannot achieve high-efficiency punching of fixed holes in the spoke while ensuring low power.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of wheel hub production and processing, and in particular, to a press for processing automobile accessory wheel hubs. Background Art

[0002] As a key vehicle component, automotive wheels typically utilize a separate process for the spokes and rims, followed by welding. Punching is crucial during spoke processing, as the punched ventilation and fixing holes serve distinct functions. The ventilation holes facilitate air circulation, effectively dissipating frictional heat generated by the braking system and ensuring stable braking performance. The fixing holes, distributed along the circumference, connect to the axle via bolts or nuts, ensuring stable wheel rotation and efficient transmission of driving, braking, and steering forces.

[0003] Currently, punching the fixed holes in spokes faces a process bottleneck. Existing presses fall into two main categories: one uses multiple punches simultaneously, completing all fixed holes in one go. While this offers high processing efficiency, it places stringent demands on the power of the equipment, resulting in high energy consumption and a significant increase in equipment purchase costs. The other uses a single punch to punch holes one by one. While this reduces power requirements, the frequent rotation of the spokes significantly reduces overall processing efficiency. Balancing processing efficiency with energy consumption and cost remains a pressing technical challenge.

[0004] Based on this, the present application is devoted to developing a new type of press equipment, which can significantly improve the punching efficiency of the spoke fixing holes while ensuring lower power requirements. Summary of the Invention

[0005] To overcome the above-mentioned defects, an embodiment of the present invention provides a press for processing automobile hub parts, which solves the technical problem in related arts that presses cannot achieve high-efficiency punching of fixing holes for spokes while ensuring low power.

[0006] According to one aspect, at least one embodiment of the present invention provides a press for processing an automotive hub, which is used to punch a plurality of circumferentially arranged fixing holes in the middle of a spoke, comprising:

[0007] Die base, used to place the spokes to be punched;

[0008] A punching head is arranged above the die base in a lifting manner, and the punching head can be moved up and down to punch holes in the spokes located on the die base;

[0009] The bottom of the punching head has at least three punching rods, which are arranged along the circumference and have a punching surface facing the die base;

[0010] The punching rods are divided into at least two groups, each group has at least one punching rod, the punching surfaces of the punching rods in the same group are coplanar, and the distances from the punching surfaces of any two groups of punching rods to the die base are different.

[0011] For example, at least one embodiment of the present disclosure provides a press for processing automobile parts wheels.

[0012] In a group of the punching rods whose punching surface is closest to the die base, there are at least two punching rods.

[0013] For example, at least one embodiment of the present disclosure provides a press for processing automobile parts wheels.

[0014] The distance difference between the punching surfaces of any two groups of punching rods and the die base is greater than or equal to the thickness of the spoke.

[0015] For example, at least one embodiment of the present disclosure provides a press for processing an automobile wheel hub, further comprising:

[0016] A limiting pressure piece is slidably arranged at the bottom of the punching head, and the limiting pressure piece has a plurality of limiting holes arranged in a one-to-one correspondence with the punching rods for the punching rods to pass through;

[0017] The limiting pressing piece can follow the punching head to move downward and press on the spoke, and the punching head can continue to descend after the limiting pressing piece presses on the spoke to allow the punching rod to pass through the limiting hole and punch the spoke.

[0018] For example, at least one embodiment of the present disclosure provides a press for processing automobile parts wheels.

[0019] A groove is provided at the bottom of the position-limiting pressing member;

[0020] A lubricating oil smearing assembly is arranged in the groove, and a clearance hole for the punching rod to pass through is opened on the lubricating oil smearing assembly. The lubricating oil smearing assembly is used to apply lubricating oil to the area to be punched of the spoke.

[0021] For example, at least one embodiment of the present disclosure provides a press for processing automobile parts wheels.

[0022] The lubricating oil applying component is a sponge block, which is protruded downward from the groove. The sponge block can squeeze out the lubricating oil after the limiting pressing piece is pressed on the spoke.

[0023] For example, at least one embodiment of the present disclosure provides a press for processing automobile parts wheels.

[0024] The groove is annular;

[0025] The lubricating oil application assembly comprises:

[0026] An annular smearing member is rotatably arranged in the groove, the clearance hole is located on the annular smearing member, and the annular smearing member can rotate relative to the limiting pressure member and apply lubricating oil on the spokes.

[0027] For example, at least one embodiment of the present disclosure provides a press for processing automobile parts wheels.

[0028] A sliding hole is provided in the middle of the position-limiting pressing member, and a sliding rod is provided at the bottom of the punch head. The sliding rod is arranged through the sliding hole and slides with the sliding hole;

[0029] A rotation drive guide groove is provided on the side wall of the sliding rod, a drive hole connected to the groove is provided on the inner wall of the sliding hole, a drive rod is provided in the drive hole, one end of the drive rod is connected to the annular smear member, and the other end extends into the rotation drive guide groove, and the rotation drive guide groove is configured to drive the drive rod to rotate reciprocatingly along the circumference after the limiting pressure member slides to drive the annular smear member to rotate.

[0030] For example, at least one embodiment of the present disclosure provides a press for processing automobile parts wheels.

[0031] The annular smearing member has a lubricating oil cavity therein, a flexible smearing member is provided at the bottom of the annular smearing member, and an oil outlet hole for supplying oil to the flexible smearing member is provided on the bottom wall of the lubricating oil cavity.

[0032] For example, at least one embodiment of the present disclosure provides a press for processing automobile parts wheels.

[0033] The driving rod has a channel inside that is connected to the lubricating oil chamber, and the driving rod is connected to an inflation component for inflating the channel. The inflation component is located in the rotating drive guide groove. When the punching head moves downward relative to the limiting pressure piece, the inflation component can abut against the inner wall of the rotating drive guide groove to inflate the lubricating oil chamber and make the oil outlet hole discharge oil.

[0034] The beneficial effects of the embodiments of the present invention are:

[0035] In the present invention, the design of the convex surface of the die base and the concave surface of the spokes are adapted to provide a stable positioning method for the spokes. During the punching process, this tight positioning method can effectively prevent the spokes from shifting or shaking, thereby ensuring the position accuracy and processing quality of the fixing holes.

[0036] The punching rods of the punch head are arranged in groups, with different distances between the punching surface and the die base. This allows each group of rods to punch the spokes sequentially as the punch head descends. Compared to existing technologies that punch multiple rods simultaneously, this structure only uses one group of rods at a time, significantly reducing the power requirements of the punching equipment, thereby reducing energy consumption and acquisition costs.

[0037] Compared to punching holes one by one with a single punch, which requires frequent spoke rotation, this press can punch multiple fixed holes in a single ram lowering motion, reducing the number of spoke rotations and the number of ram raising and lowering operations, significantly improving punching efficiency. By grouping at least three punching rods, the number and position of each group can be flexibly adjusted based on the distribution and number of fixed holes on the spoke, further optimizing the punching process. This achieves efficient processing while ensuring low-power operation, successfully resolving the conflict between efficiency, energy consumption, and cost in existing technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0039] Figure 1 A schematic diagram of the three-dimensional structure of a press for processing automobile wheel hubs according to an embodiment of the present invention Figure 1 ;

[0040] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure in the embodiment Figure 2 ;

[0041] Figure 3 for Figure 2 Middle A is a schematic diagram of a partially enlarged structure;

[0042] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure after the spokes are placed in the embodiment;

[0043] Figure 5 for Figure 1 A schematic diagram of the main structure of the embodiment;

[0044] Figure 6 for Figure 5 Schematic diagram of the BB cross-section structure;

[0045] Figure 7 for Figure 6Middle C is a schematic diagram of the partially enlarged structure;

[0046] Figure 8 This is a schematic structural diagram of an implementation scheme of a lubricating oil application component;

[0047] Figure 9 for Figure 8 Schematic diagram of the explosion structure of the embodiment;

[0048] Figure 10 A schematic structural diagram of another embodiment of a lubricating oil application component;

[0049] Figure 11 for Figure 10 Schematic diagram of the explosion structure of the embodiment;

[0050] Figure 12 Schematic diagram of the structure of the spoke in the hub;

[0051] Figure 13 Schematic diagram of the spoke structure;

[0052] In the figure: 1-die base, 2-punching head, 21-punching rod, 22-punching surface, 23-sliding rod, 24-rotational drive guide groove, 3-limiting pressure piece, 31-limiting hole, 32-sliding hole, 33-driving hole, 34-driving rod, 35-channel, 36-inflating component, 37-groove, 4-lubricating oil smearing component, 41-allowing hole, 42-annular smearing member, 43-lubricating oil cavity, 44-flexible smearing member, 45-oil outlet, 9-spoke, 91-fixing hole. DETAILED DESCRIPTION

[0053] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0054] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0055] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0056] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0057] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0058] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0059] like Figures 1 to 13 , which shows a press for processing an automotive hub, according to one embodiment of the present invention, for punching a plurality of circumferentially arranged fixing holes 91 in the center of a spoke 9. The press comprises a die base 1 and a punch head 2. The spoke 9 has a convex surface and a concave surface. The upper surface of the die base 1 is convex, and the contour of the convex surface matches the contour of the concave surface of the spoke 9. When the spoke 9 is placed on the die base 1, the concave surface of the spoke 9 fits tightly with the convex surface of the die base 1, thereby achieving the positioning of the spoke 9 on the die base 1 and ensuring that the area to be punched in the center of the spoke 9 corresponds to the punching position of the punch head 2.

[0060] The punch head 2 is set just above the die base 1 through a lifting drive mechanism. The lifting drive mechanism adopts a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixed on the frame of the press, and the piston rod is connected to the punch head 2. The punch head 2 is driven to move up and down in the vertical direction through the extension and contraction of the piston rod.

[0061] At least three punching rods 21 are located at the bottom of the punch head 2, arranged circumferentially around the center of the punch head 2. The at least three punching rods 21 are divided into at least two groups, each containing at least one punching rod 21. Within a group, the punching surfaces 22 of all punching rods 21 are coplanar; however, the distance between the punching surfaces 22 and the die base 1 varies between any two groups.

[0062] For example, when the punch head 2 has four punching rods 21 at the bottom, they can be divided into two groups. The first group includes two punching rods 21, and the distance between their punching surfaces 22 and the upper surface of the die base 1 is H1. The second group also includes two punching rods 21, and the distance between their punching surfaces 22 and the upper surface of the die base 1 is H2, where H1 is less than H2.

[0063] When punching the fixed hole 91, first fit the concave surface of the spoke 9 with the convex surface of the die base 1 so that the spoke 9 is firmly placed on the die base 1. Then, the hydraulic cylinder drives the punch head 2 to move downward. When the punch head 2 descends until the punching surface 22 of the first group of punching rods 21 contacts the spoke 9, the first group of punching rods 21 punches the spoke 9. At this time, the punching surface 22 of the second group of punching rods 21 has not yet contacted the spoke 9. After the first group of punching is completed, the hydraulic cylinder continues to drive the punch head 2 down until the punching surface 22 of the second group of punching rods 21 contacts the spoke 9, and the second group of punching rods 21 punches the spoke 9. After the punching is completed, the hydraulic cylinder drives the punch head 2 to rise and reset, completing a punching process.

[0064] Beneficial effects:

[0065] The design of the convex surface of the die base 1 and the concave surface of the spoke 9 provide a stable positioning method for the spoke 9. During the punching process, this tight-fitting positioning method can effectively prevent the spoke 9 from displacement or shaking, thereby ensuring the position accuracy and processing quality of the fixing hole 91.

[0066] The punching rods 21 of the punch head 2 are arranged in groups, and the distances between the punching surfaces 22 of different groups and the die base 1 are different. This allows the punching rods 21 of different groups to punch the spokes 9 in sequence as the punch head 2 descends. Compared with existing technologies that use multiple punches to punch simultaneously, this structure only uses one group of punching rods 21 at a time, greatly reducing the power requirements of the punching equipment, thereby reducing equipment energy consumption and purchase costs.

[0067] Compared to punching holes one by one with a single punch, which requires frequent rotation of the spoke 9, this press can punch multiple fixed holes 91 during a single descent of the punch head 2, reducing the number of rotations of the spoke 9 and the number of times the punch head 2 is raised and lowered, significantly improving punching efficiency. By grouping at least three punching rods 21, the number and position of each group of punching rods 21 can be flexibly adjusted based on the distribution and number of fixed holes 91 on the spoke 9, further optimizing the punching process. While ensuring low-power operation, this achieves efficient processing and production, successfully resolving the contradiction between efficiency, energy consumption, and cost in existing technologies.

[0068] For example, Figure 5 As shown, at least two punching rods 21 are provided in the group whose punching surface 22 is closest to the die base 1. For example, when there are five punching rods 21 divided into three groups, two punching rods 21 are provided in the first group closest to the die base 1. Thus, during the descent of the punch head 2, the spokes 9 are first punched by these two punching rods 21 (after the two punching rods 21 have completed the punching operation, the position of the spokes 9 is further stabilized, so that the subsequent punching positions are more accurate).

[0069] Furthermore, the difference in distance between the punching surface 22 and the die base 1 between any two groups is at least the thickness of the spoke 9. Assuming the spoke 9 thickness is t, if the distance between the punching surface 22 and the die base 1 of the first group of punching rods 21 is H1 and the distance between the punching surface 22 and the die base 1 of the second group is H2, then H2 - H1 ≥ t. This ensures that after one group of punching rods 21 completes punching, the next group of punching rods 21 will not be affected by the already punched area when it begins working.

[0070] Furthermore, the limiting pressing member 3 is slidably arranged on the slide rod 23 at the bottom of the punch head 2 through the slide hole 32 (refer to Figure 3 As shown, the bottom of the slide bar 23 has a stopper protrusion to prevent the stopper 3 from falling off the slide bar 23. When the stopper 3 is at its lowest point, at least one set of punching rods 21 is located within the stopper holes 31. The stopper 3 has the same number of stopper holes 31 as the punching rods 21 and corresponds to them. When the punch head 2 descends, the stopper 3 first follows and presses against the spokes 9 located on the die base 1. At this time, the punch head 2 continues to descend, and the punching rods 21 penetrate the stopper holes 31 to punch the spokes 9.

[0071] Beneficial effects:

[0072] The punching surface 22 is closest to the die base 1 and is provided with at least two punching rods 21. Multiple holes can be punched out simultaneously at the beginning of the punching process, which further improves the initial efficiency of the punching process and reduces the overall punching time. Most importantly, the relative position of the spokes 9 can be locked to provide precise positional assurance for subsequent punching processes.

[0073] The distance difference is at least the thickness of the spoke 9, ensuring the independence and effectiveness of the work of different groups of punching rods 21. This avoids the adverse effects of the punching rods 21 of the latter group on the punched areas of the previous group due to the close distance, such as causing deformation of the holes, thereby improving the processing quality of the fixing holes 91.

[0074] The limiting pressure piece 3 plays an important role in positioning and stabilizing the punching process. Before the punching rod 21 punches, the limiting pressure piece 3 presses against the spokes 9 to prevent displacement during the punching process and ensure accurate positioning of the punching. Furthermore, the limiting hole 31 guides the punching rod 21, ensuring that it punches vertically, thereby improving the verticality and accuracy of the punching.

[0075] As a further example, refer to Figures 8-11 As shown, an annular groove 37 is provided at the bottom of the limiting pressure piece 3 , and a lubricating oil smearing component 4 is provided in the annular groove 37 .

[0076] Preferably, refer to Figure 8 and Figure 9 As shown, the lubricating oil smearing assembly 4 in the form of a sponge block, the sponge block part extends out of the groove 37. When the limiting pressing member 3 is pressed on the spoke 9, the sponge block is squeezed, thereby squeezing out the lubricating oil and smearing it on the area to be punched of the spoke 9.

[0077] As a further example, refer to Figure 10 and Figure 11 As shown in FIG, another form of lubricating oil applying assembly 4 is described. The annular applying member 42 is reciprocatingly arranged in the annular groove 37, and a clearance hole 41 is opened on it. A rotation drive guide groove 24 is opened on the side wall of the slide rod 23, and a driving hole 33 (refer to FIG. Figure 3 As shown, the drive hole 33 comprises two vertical holes, one above and one below, and a central curved hole. When the drive rod 34 is positioned in the vertical hole, the clearance hole 41 is coaxial with the limiting hole 31. When the drive rod 34 is positioned in the curved hole, the drive rod 34 is disposed within the die base 1 (specifically, the die base 1 (with the nearest stamping surface 22 located above the die base)). One end of the drive rod 34 is positioned within the inner wall of the annular smear member 42, and the other end extends into the rotational drive guide groove 24. When the limiting pressure member 3 slides on the slide rod 23, the rotational drive guide groove 24 drives the drive rod 34 to rotate reciprocatingly along the circumference, thereby driving the annular smear member 42 to rotate.

[0078] Preferably, the annular smear member 42 defines a lubricating oil chamber 43 therein, and a flexible smear member 44 is provided at its bottom. The lubricating oil chamber 43 has an oil outlet hole 45 formed in its wall. The drive rod 34 has an internal channel 35 communicating with the lubricating oil chamber 43. The driving rod 34 is located within the rotation drive guide groove 24, and the inflation assembly 36 on the outer wall thereof inflates the lubricating oil chamber 43 under the squeezing action of the inner wall of the rotation drive guide groove 24, causing oil to flow out of the oil outlet hole 45, and the lubricating oil is then applied to the spokes 9 through the flexible smear member 44.

[0079] Beneficial effects:

[0080] The lubricating oil application assembly 4 applies lubricating oil to the areas of the spokes 9 to be punched. This lubricating oil reduces friction between the punching rods 21 and the spokes 9, reducing wear on the punching rods 21 and extending their service life. It also reduces heat generated by friction, preventing deformation of the spokes 9 material due to overheating, and improving punching quality and surface finish.

[0081] The lubricating oil application assembly 4 in the form of a sponge block is low-cost and can effectively apply lubricating oil through extrusion. The lubricating oil application assembly 4 in the form of an annular application member 42 achieves reciprocating rotation of the annular application member 42 through the rotating drive guide groove 24 (which is strip-shaped and offset along the circumference of the slide rod 23, so that when the slide rod 23 moves in the vertical direction, it drives the drive rod 34 to rotate reciprocally in the circumference). The driving rod 34 and other structures cooperate to inflate the lubricating oil chamber 43 with the inflation assembly 36 (which can be an airbag or piston rod, etc., which, under the extrusion of the driving surface in the rotating drive guide groove 24, inflates the lubricating oil chamber 43). This inflates and discharges oil from the lubricating oil chamber 43, allowing the lubricating oil to be applied to the spokes 9 more evenly and efficiently, further improving the lubrication effect and punching quality.

[0082] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A press for processing an automobile hub, used for punching a plurality of circumferentially arranged fixing holes (91) in the middle of a spoke (9), characterized in that: include: A die base (1) for placing the spokes (9) to be punched; A punching head (2) is arranged to be lifted above the die base (1), and the punching head (2) can be lifted and moved to punch holes in the spokes (9) located on the die base (1); The bottom of the punching head (2) has at least three punching rods (21), the punching rods (21) are arranged along the circumference, and the punching rods (21) have a punching surface (22) arranged toward the die base (1); The punching rods (21) are divided into at least two groups, each group having at least one punching rod (21), the punching surfaces (22) of the punching rods (21) in the same group are coplanar, and the distances from the punching surfaces (22) of any two groups of punching rods (21) to the die base (1) are different; A limiting pressure piece (3) is slidably arranged at the bottom of the punch head (2), and a groove (37) is formed at the bottom of the limiting pressure piece (3); A lubricating oil smearing assembly (4) is provided in the groove (37), and a clearance hole (41) for the punching rod (21) to pass through is provided on the lubricating oil smearing assembly (4), and the lubricating oil smearing assembly (4) is used to smear lubricating oil on the area to be punched of the spoke (9); The groove (37) is annular; The lubricating oil application component (4) comprises: an annular smearing member (42) rotatably disposed in the groove (37), the clearance hole (41) being located on the annular smearing member (42), the annular smearing member (42) being capable of rotating relative to the limiting pressure member (3) and smearing lubricating oil on the spoke (9); A sliding hole (32) is provided in the middle of the position-limiting pressure piece (3), and a sliding rod (23) is provided at the bottom of the punch head (2). The sliding rod (23) is arranged to pass through the sliding hole (32) and to slide with the sliding hole (32). A rotation drive guide groove (24) is provided on the side wall of the slide rod (23), a drive hole (33) connected to the groove (37) is provided on the inner wall of the slide hole (32), and a drive rod (34) is provided in the drive hole (33), one end of the drive rod (34) is connected to the annular smear member (42), and the other end extends into the rotation drive guide groove (24), and the rotation drive guide groove (24) is configured to drive the drive rod (34) to rotate reciprocatingly along the circumference after the limiting pressure member (3) slides, so as to drive the annular smear member (42) to rotate; The annular smear member (42) has a lubricating oil cavity (43) therein, the bottom of the annular smear member (42) has a flexible smear member (44), and the bottom wall of the lubricating oil cavity (43) is provided with an oil outlet hole (45) for supplying oil to the flexible smear member (44); The driving rod (34) has a channel (35) inside that is connected to the lubricating oil chamber (43). The driving rod (34) is connected to an inflation component (36) for inflating the channel (35). The inflation component (36) is located in the rotating driving guide groove (24). When the punching head (2) moves downward relative to the limiting pressure member (3), the inflation component (36) can abut against the inner wall of the rotating driving guide groove (24) to inflate the lubricating oil chamber (43) and make the oil outlet hole (45) discharge oil.

2. A press for processing automobile parts wheel hubs according to claim 1, characterized in that: In a group of the punching rods (21) whose punching surface (22) is closest to the die base (1), there are at least two punching rods (21).

3. The press for processing automobile wheel hub according to claim 1, characterized in that: The distance difference between the punching surfaces (22) of any two groups of punching rods (21) and the die base (1) is greater than or equal to the thickness of the spoke (9).

4. The press for processing automobile wheel hub according to claim 1, characterized in that: Also includes: The limiting pressure piece (3) has a plurality of limiting holes (31) arranged in one-to-one correspondence with the punching rods (21) for the punching rods (21) to pass through; The limiting pressure piece (3) can follow the punching head (2) to move downward and press against the spoke (9), and the punching head (2) can continue to descend after the limiting pressure piece (3) presses against the spoke (9) to allow the punching rod (21) to pass through the limiting hole (31) and punch the spoke (9).

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