Anti-adhesion forging punching device

Abstract

The utility model relates to the field of aluminum alloy hub manufacturing, and discloses an anti-adhesion forging punching device which comprises a punch arranged corresponding to an aluminum alloy hub forging blank, a center blind hole is formed in the upper portion of the punch, a material ejecting rod is arranged in the center blind hole, a limiting table is arranged on the material ejecting rod, and the limiting table is arranged on the upper portion of the punch. A penetrating through hole is formed in the bottom of the punch corresponding to the ejector rod, the hole diameter of the penetrating through hole is smaller than the diameter of the limiting table of the ejector rod, the lower portion of the ejector rod is axially connected with the penetrating through hole in a sliding mode, the upper portion of the ejector rod is connected with a compression spring, and the ejector rod is elastically connected to the punch. By arranging the ejector rod elastically connected with the punch, when punching operation is completed, the ejector rod ejects the punching block to enable the punching block to be rapidly separated from the punch, the situation that the punching block adheres to the punch is avoided, and the problem that punching waste products are generated due to the fact that the punching block adheres to the punch is completely eradicated. And meanwhile, the trouble of configuring equipment guarded by a specially-assigned person is saved, and the labor cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy wheel manufacturing, and in particular to an anti-adhesion forging and punching device. Background Technology

[0002] After forging, the central part of the aluminum alloy wheel hub forging blank is a closed body. It needs to undergo a punching process to create a center hole before it can be transferred to the machining process for further processing. Currently, during the punching operation of the forging blank, when the punching equipment is lifted, the punched-off piece easily sticks to the punch head, preventing it from falling off the die in time. This sticking then interferes with the punching operation of the next forging blank, easily resulting in punched defective products. Due to this problem, dedicated operators are required to monitor the equipment during the punching operation of forging blanks, increasing labor costs. When operators discover that the punch is stuck to the punch head, they must intervene manually in a timely manner to prevent the punch from interfering with the next forging blank and causing punched defective products.

[0003] Based on this, designing an anti-adhesion forging punching device for practical production, which facilitates the rapid release of the punch block from the die and avoids punching defects, is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems by providing an anti-adhesion forging punching device, which solves the problem that the punch block and punch head easily stick together during the existing aluminum alloy wheel hub forging blank punching process, resulting in punching waste, and the problem that it requires more dedicated operators to supervise the equipment, increasing labor costs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An anti-adhesion forging punching device includes a punch corresponding to an aluminum alloy wheel hub forging blank. The upper part of the punch has a central blind hole, and a ejector rod is disposed in the central blind hole. A limiting platform is disposed on the ejector rod. The bottom of the punch has a through hole corresponding to the ejector rod. The diameter of the through hole is smaller than the diameter of the limiting platform of the ejector rod. The lower part of the ejector rod is axially slidably connected to the through hole, and the upper part of the ejector rod is connected to a compression spring, so that the ejector rod is elastically connected to the punch.

[0007] Preferably, the upper end of the punch is connected to a punching rod, the central blind hole is provided with an internal thread, the lower end of the punching rod is provided with an external thread, and the punching rod is threadedly connected to the punch.

[0008] Preferably, the upper end of the compression spring abuts against the lower end face of the stamping rod, and the lower end of the spring is pressed against the limiting platform.

[0009] Preferably, the lower end of the stamping rod is provided with a telescopic sliding hole, the ejector rod is telescopically connected in the telescopic sliding hole, and the outer diameter of the ejector rod is slidably connected to the telescopic sliding hole.

[0010] Preferably, the top material rod has a stepped shaft structure, and a compression spring is sleeved on the upper part of the top material rod.

[0011] Preferably, the top end of the stamping rod is connected to an upper plate, the upper plate has a connecting hole corresponding to the stamping rod, and a connecting stop is provided on the top material rod. The diameter of the connecting stop is larger than the diameter of the connecting hole. The top end of the stamping rod is inserted into the connecting hole, and the connecting stop is engaged with the lower side of the connecting hole.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention features a push rod that elastically connects to the punch. During the punching operation, the push rod actuates the punch block, causing it to quickly detach from the punch, thus preventing the punch block from sticking to the punch and eliminating the problem of defective punched products caused by punch block adhesion. Simultaneously, it eliminates the need for dedicated personnel to monitor the equipment, saving labor costs. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0017] Figure 3 for Figure 2 Exploded view.

[0018] Figure 4 This is a structural diagram of the present invention in use.

[0019] In the diagram: 10--punch; 11--center blind hole; 12--through hole; 20--ejector rod; 21--limiting stage; 22--compression spring; 23--connecting stop; 30--trimming die; 40--punching rod; 41--telescopic sliding hole; 50--upper plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] like Figure 1-4As shown, an anti-adhesion forging punching device includes a punch 10 corresponding to an aluminum alloy wheel hub forging blank, used to punch the wheel hub blank to form a center hole. A central blind hole 11 is formed on the upper part of the punch 10, and a push rod 20 is disposed within the central blind hole 11. A limiting platform 21 is provided on the push rod 20. A through hole 12 is formed at the bottom of the punch 10 corresponding to the push rod 20. The diameter of the through hole 12 is smaller than the diameter of the limiting platform 21 of the push rod 20. The lower part of the push rod 20 is axially slidably connected to the through hole 12. A compression spring 22 is connected to the upper part of the push rod 20, so that the push rod 20 is elastically connected to the punch 10. The lower end of the push rod 20 extends out of the through hole 12 and is limited by the limiting platform 21.

[0022] When using, such as Figure 4 As shown, the aluminum alloy wheel hub forging blank to be punched is placed on the trimming die 30, and the punch 10 descends to perform the center hole punching operation on the forging blank. During this process, the ejector rod 20, which extends from the bottom of the punch 10 through the through hole 12, will first contact the forging blank. As the punch 10 continues to descend, it will force the ejector rod 20 to retract and compress the compression spring 22 to store energy. The punch 10 continues to descend, and under the support of the trimming die 30, the punch block at the center hole position of the forging blank will separate from the blank body, completing the punching operation. At this time, the ejector rod 20 will extend out of the through hole 12 under the thrust of the compression spring 22, pushing the punch block to detach from the punch 10 and fall below the trimming die 30, avoiding the situation where the punch block sticks to the punch 10 and eliminating the problem of punching defects caused by the punch block sticking. At the same time, it eliminates the trouble of setting up a dedicated person to supervise the equipment and saves labor costs.

[0023] In a preferred embodiment, a punching rod 40 is connected to the upper end of the punch 10. Specifically, an internal thread is provided in the central blind hole 11, and an external thread is provided at the lower end of the punching rod 40. The punching rod 40 is threadedly connected to the punch 10. This embodiment uses a threaded connection method, which facilitates the disassembly and maintenance of various components. It also allows for quick replacement of the appropriate punch 10 according to the punching requirements of different forging blanks, completing the punching operation of different forging blanks and improving the applicability of the device.

[0024] First Embodiment: As the first embodiment of this utility model, such as Figure 1 As shown, the upper end of the compression spring 22 abuts against the lower end face of the stamping rod 40, and the lower end of the spring is pressed against the limiting platform 21. In this embodiment, the ejector rod 20 is T-shaped, and the central blind hole 11 of the punch 10 provides the movement space for the ejector rod 20 to extend and retract.

[0025] Second embodiment: As a second embodiment of this utility model, such as Figure 2 , 3As shown, the lower end of the stamping rod 40 is provided with a telescopic sliding hole 41. The ejector rod 20 is telescopically connected within the telescopic sliding hole 41, and the outer diameter of the ejector rod 20 is slidably connected to the telescopic sliding hole 41. In this embodiment, the telescopic sliding hole 41 of the stamping rod 40 provides the telescopic space for the ejector rod 20, increasing the stroke of the ejector rod 20. Furthermore, the axial limiting effect of the ejector rod 20 through the telescopic sliding hole 41 improves the action accuracy of the ejector rod 20, effectively preventing the ejector rod 20 from jamming and ensuring the stability and working quality of the device. Preferably, in this embodiment, the ejector rod 20 has a stepped shaft structure, and the compression spring 22 is sleeved on the upper part of the ejector rod 20, further ensuring the stability of the device operation.

[0026] Furthermore, the top end of the stamping rod 40 is connected to an upper plate 50 for connecting the stamping power. In use, the stamping power is connected to the upper plate 50 and the stamping force is transmitted to the punch 10 via the stamping rod 40, thereby completing the punching operation of the forging blank. Preferably, the upper plate 50 has a connecting hole corresponding to the stamping rod 40, and the top end of the stamping rod 40 is inserted into the connecting hole. The ejector rod 20 is provided with a connecting stop 23, the diameter of which is larger than the diameter of the connecting hole. During assembly, the top end of the stamping rod 40 is inserted into the connecting hole, and the connecting stop 23 is engaged below the connecting hole.

[0027] The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A forging punching device for preventing adhesion, characterized in that: The punch (10) is provided for the aluminum alloy wheel hub forging blank. The upper part of the punch (10) is provided with a central blind hole (11). A push rod (20) is provided in the central blind hole (11). A limiting platform (21) is provided on the push rod (20). A through hole (12) is provided at the bottom of the punch (10) corresponding to the push rod (20). The diameter of the through hole (12) is smaller than the diameter of the limiting platform (21) of the push rod (20). The lower part of the push rod (20) is axially slidably connected to the through hole (12). A compression spring (22) is connected to the upper part of the push rod (20) so that the push rod (20) is elastically connected to the punch (10). The upper end of the punch (10) is connected to a punch rod (40), the central blind hole (11) is provided with an internal thread, the lower end of the punch rod (40) is provided with an external thread, and the punch rod (40) is threadedly connected to the punch (10). The top material rod (20) has a stepped shaft structure. The compression spring (22) is sleeved on the upper part of the top material rod (20). The lower end of the top material rod (20) extends out of the through hole (12) and is limited by the limiting platform (21).

2. The anti-adhesion forging punching device according to claim 1, characterized in that: The upper end of the compression spring (22) abuts against the lower end face of the stamping rod (40), and the lower end of the spring is pressed against the limiting platform (21).

3. The anti-adhesion forging punching device according to claim 1, characterized in that: The lower end of the stamping rod (40) is provided with a telescopic sliding hole (41), the top material rod (20) is telescopically connected in the telescopic sliding hole (41), and the outer diameter of the top material rod (20) is slidably connected to the telescopic sliding hole (41).

4. The anti-adhesion forging punching device according to claim 1, characterized in that: The top of the stamping rod (40) is connected to an upper plate (50). The upper plate (50) has a connecting hole corresponding to the stamping rod (40). The top of the ejector rod (20) is provided with a connecting stop (23). The diameter of the connecting stop (23) is larger than the diameter of the connecting hole. The top of the stamping rod (40) is inserted into the connecting hole, and the connecting stop (23) is snapped into the lower side of the connecting hole.

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