Cold-forging radiator stamping positioning die

Abstract

The utility model discloses a cold -forging radiator stamping positioning die relates to cold -forging die technical field, aims at solving the current stamping positioning die in the mode, and the upper die and radiator appear " cold welding " phenomenon situation cannot carry out normal material taking technical problem, including lower mould and upper die. The utility model discloses through design support, first electric hydraulic push rod, mounting bracket and auxiliary rod etc. structure, when the lower mould and upper die open mode, if the radiator after cold -forging forming and upper die occur " cold welding " phenomenon, personnel can directly control the first electric hydraulic push rod on support and push down mounting bracket, when mounting bracket drives the synchronous descent of several groups of auxiliary rods at its bottom, when auxiliary rod will descend in the cavity of upper die punch head, thereby can exert the downward thrust to radiator, thereby can quickly realize the separation of radiator and upper die, guarantee personnel can take normal spare, improve the convenience of device use.

Description

Technical Field

[0001] This utility model relates to the field of cold forging die technology, and more specifically, to a stamping and positioning die for a cold forging radiator. Background Technology

[0002] In modern industry and electronic equipment, heat sinks play a vital role, effectively dissipating the heat generated during equipment operation, ensuring stable operation and extending service life. With technological advancements, aluminum profiles, aluminum-zinc die casting, and cold forging processes have gradually become key technologies in heat sink manufacturing. In the cold forging process of heat sinks, stamping positioning dies are typically used, consisting of upper and lower dies. The pre-made blank is placed into the lower die cavity, and then the upper and lower dies are closed. The stamping head of the upper die cold forges and stamps the blank in the inner cavity of the lower die to form the heat sink. Then, the die is opened, and after the upper and lower dies separate, the formed heat sink is ejected from the lower die cavity by the ejection mechanism in the lower die, thus completing the cold forging process of the heat sink.

[0003] In the cold forging process, existing stamping positioning dies may experience friction jamming, vacuum, or residual lubricating oil between the upper die's stamping head cavity and the workpiece, which can create an adsorption force, causing the radiator's heat dissipation rod to "cold weld" with the die cavity. This makes it impossible for the upper die and the radiator to separate smoothly during demolding, preventing normal part removal. This not only increases production difficulty but may also affect the quality and production efficiency of the radiator. In view of this, we propose a stamping positioning die for cold forging radiators. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a cold forging radiator stamping positioning die to solve the technical problem that the upper die and the radiator cannot be properly unloaded when the current stamping positioning die is opened due to the "cold welding" phenomenon.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a cold forging radiator stamping positioning die, including a lower die and an upper die, a bracket is arranged at the top center of the upper die, an mounting frame is slidably arranged in the bracket, a first electro-hydraulic push rod is arranged at the top center of the bracket, the piston end of the first electro-hydraulic push rod is connected to the top center of the mounting frame, and several sets of equidistant auxiliary rods are arranged at the bottom of the mounting frame;

[0006] The auxiliary rod has an inner cavity, a pressure relief rod is arranged in the inner cavity, and a drive structure is arranged in the mounting frame.

[0007] Preferably, the bottom end of the auxiliary rod is a T-shaped end, and the T-shaped end is located inside the upper die stamping head cavity.

[0008] Preferably, the mounting bracket includes a lower plate, an upper plate, and connecting rods. The connecting rods are equidistantly distributed around the top of the lower plate. The upper plate is arranged on top of the connecting rods. The lower plate is coaxial with the connecting rods. An auxiliary rod is arranged on the lower plate. The upper plate is connected to a first electro-hydraulic push rod piston. The column of the bracket passes through the lower plate and the upper plate.

[0009] Preferably, the drive structure includes a drive plate and a second electro-hydraulic push rod, the second electro-hydraulic push rod is arranged at the bottom center of the upper plate, the drive plate is arranged at the piston end of the second electro-hydraulic push rod, and the drive plate is coaxial with the lower plate.

[0010] Preferably, the pressure relief rod is divided into an upper section, a middle section and a lower section from top to bottom, and the middle section has several sets of semi-circular grooves equidistantly spaced around its circumference.

[0011] Preferably, the top end of the upper section is connected to the drive plate, the upper section is located inside the lower plate, the middle section is located inside the auxiliary rod, and the lower section is located inside the T-shaped end at the bottom of the auxiliary rod, with the bottom end of the lower section flush with the bottom of the T-shaped end.

[0012] Preferably, the drive plate has several sets of limiting blocks arranged at equal intervals around its circumference, and the limiting blocks are fitted onto the columns of the bracket.

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

[0014] 1. This utility model, through the design of a support frame, a first electro-hydraulic push rod, a mounting frame, and auxiliary rods, addresses the issue of a "cold weld" phenomenon between the cold-forged radiator and the upper die during mold opening. In this case, personnel can directly control the first electro-hydraulic push rod on the support frame to push the mounting frame downwards. The mounting frame then drives several sets of auxiliary rods at its bottom to descend synchronously. These auxiliary rods descend within the cavity of the upper die's punch head, applying a downward pushing force to the radiator. This allows for rapid separation of the radiator from the upper die, ensuring normal part removal and improving the ease of use of the device. It solves the technical problem of current stamping positioning dies where a "cold weld" phenomenon occurs between the upper die and the radiator during mold opening, preventing normal part removal. Therefore, this utility model offers the advantage of rapid separation when a "cold weld" phenomenon occurs between the radiator and the upper die.

[0015] 2. The mounting bracket of this utility model is equipped with a driving structure, and a pressure relief rod is arranged inside the auxiliary rod. The pressure relief rod is divided into an upper section, a middle section, and a lower section. The middle section has semi-circular grooves evenly spaced around its circumference. Under normal circumstances, the middle and lower sections fit together in the inner cavity of the auxiliary rod, while the upper section is located in the lower plate of the mounting bracket. This ensures the overall strength of the auxiliary rod and facilitates the auxiliary rod to effectively apply a pushing force to the heat sink. It also prevents dust from entering the cavity of the upper die punch through the inner cavity. When the heat sink and the upper die experience a "cold welding" phenomenon, and it is necessary to control the auxiliary rod to apply a pushing force to the heat sink, the pressure relief rod can be raised in advance through the driving structure. Moreover, only a small increase is needed, and only the upper... The lower section detaches from the mounting bracket's lower plate. At this point, the lower section detaches from the T-shaped end of the inner cavity. The cavity of the upper die's punch head can then be directly connected to the outside through the inner cavity and the semi-circular groove in the middle section, thereby relieving pressure on the upper die's punch head's cavity. Then, the radiator is pushed apart by the auxiliary rod. Applying a small force at this point allows the auxiliary rod to descend within the cavity of the upper die's punch head. This avoids deformation of the auxiliary rod and ensures that the auxiliary rod can smoothly and quickly push the radiator off the upper die. It also prevents deformation and damage to the radiator rod due to excessive force. Therefore, it greatly improves the effectiveness of the auxiliary rod in pushing and separating the radiator. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the mounting frame and auxiliary rod installation structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the auxiliary rod of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the drive plate and pressure relief rod of this utility model;

[0020] Figure 5 This is a schematic diagram of the drive board structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the auxiliary rod and upper mold installation structure of this utility model;

[0022] Figure 7 For the present utility model Figure 6 Enlarged structural diagram at point A in the middle.

[0023] Explanation of the labels in the diagram:

[0024] 1. Lower mold; 2. Upper mold; 3. Bracket; 4. First electro-hydraulic push rod; 5. Mounting bracket; 501. Lower plate; 502. Upper plate; 503. Connecting rod; 6. Auxiliary rod; 601. Inner cavity; 602. T-shaped end; 7. Drive structure; 701. Drive plate; 702. Second electro-hydraulic push rod; 703. Limiting block; 8. Pressure relief rod; 801. Upper section; 802. Middle section; 803. Lower section; 804. Semicircular groove. Detailed Implementation

[0025] like Figures 1 to 7 As shown, this utility model relates to a cold-forged radiator stamping positioning die, including a lower die 1 and an upper die 2. A bracket 3 is arranged at the top center of the upper die 2, and a mounting bracket 5 is slidably arranged inside the bracket 3. A first electro-hydraulic push rod 4 is arranged at the top center of the bracket 3, and the piston end of the first electro-hydraulic push rod 4 is connected to the top center of the mounting bracket 5. Several sets of equidistant auxiliary rods 6 are arranged at the bottom of the mounting bracket 5; the bottom end of the auxiliary rod 6 is a T-shaped end 602, and the T-shaped end 602 is located at... The upper die 2 is inside the stamping head cavity; the mounting frame 5 includes a lower plate 501, an upper plate 502 and a connecting rod 503. The connecting rod 503 is evenly distributed around the top of the lower plate 501. The upper plate 502 is arranged on the top of the connecting rod 503. The lower plate 501 and the connecting rod 503 are coaxial. The auxiliary rod 6 is arranged on the lower plate 501. The upper plate 502 is connected to the piston of the first electro-hydraulic push rod 4. The column of the bracket 3 passes through the lower plate 501 and the upper plate 502.

[0026] When the lower die 1 and the upper die 2 are opened, if the cold-forged radiator and the upper die 2 are "cold-welded", the personnel can directly control the first electric hydraulic push rod 4 on the bracket 3 to push the mounting frame 5 down. At this time, the mounting frame 5 drives several sets of auxiliary rods 6 at its bottom to descend synchronously. The auxiliary rods 6 will descend in the cavity of the upper die 2's punch head. Then, the T-shaped end 602 can apply a downward pushing force to the radiator, thereby quickly separating the radiator from the upper die 2, ensuring that the personnel can pick up the parts normally and improving the convenience of using the device.

[0027] In an embodiment of this utility model, an inner cavity 601 is provided inside the auxiliary rod 6, and a pressure relief rod 8 is arranged in the inner cavity 601. A drive structure 7 is arranged inside the mounting bracket 5. The drive structure 7 includes a drive plate 701 and a second electro-hydraulic push rod 702. The second electro-hydraulic push rod 702 is arranged at the bottom center of the upper plate 502, and the drive plate 701 is arranged at the piston end of the second electro-hydraulic push rod 702. The drive plate 701 is coaxial with the lower plate 501. The pressure relief rod 8 is divided into an upper section 801, a middle section 802 and a lower section 803 from top to bottom. Several sets of semi-circular grooves 804 are equidistantly provided around the middle section 802. The top end of the upper section 801 is connected to the drive plate 701. The upper section 801 is located inside the lower plate 501. The middle section 802 is located inside the auxiliary rod 6. The lower section 803 is located inside the T-shaped end of the bottom of the auxiliary rod 6, and the bottom end of the lower section 803 is flush with the bottom of the T-shaped end 602.

[0028] Under normal circumstances, the middle section 802 and the lower section 803 are located in the inner cavity 601 of the auxiliary rod 6, while the upper section 801 is located in the lower plate 501 of the mounting bracket 5. This ensures the overall strength of the auxiliary rod 6, facilitates the effective application of a pushing force to the radiator by the auxiliary rod 6, and prevents dust from entering the cavity of the upper die 2's stamping head through the inner cavity 601. When a "cold welding" phenomenon occurs between the radiator and the upper die 2, and it is necessary to control the auxiliary rod 6 to apply a pushing force to the radiator, the drive plate 701 can be raised in advance by the second electro-hydraulic push rod 702. Then, the pressure relief rod 8 of the drive plate 701 rises, and only a small increase is needed to disengage the upper section 801 from the lower plate 501 of the mounting bracket 5. At this time, the lower section 802... 03. After disengaging from the T-shaped end of the inner cavity 601, the cavity of the upper die 2 punch head can be directly connected to the outside through the inner cavity 601 and the semi-circular groove 804 of the middle section 802, thereby relieving pressure on the cavity of the upper die 2 punch head. Then, the heat sink is pushed and separated by the auxiliary rod 6. At this time, a small force can be applied to make the auxiliary rod 6 descend in the cavity of the upper die 2 punch head. This can prevent the auxiliary rod 6 from deforming and ensure that the auxiliary rod 6 can push the heat sink off the upper die 2 smoothly and quickly. Moreover, it can avoid the heat sink rod from deforming and being damaged due to excessive force. Therefore, it can greatly improve the effect of the auxiliary rod 6 in pushing and separating the heat sink.

[0029] Specifically, the drive plate 701 has several sets of limit blocks 703 arranged at equal intervals around its circumference, and the limit blocks 703 are fitted onto the columns of the bracket 3; with the cooperation of the limit blocks 703, the drive plate 701 can be limited to ensure that the drive plate 701 can drive the pressure relief rod 8 of the tow rod assembly to rise horizontally and stably.

[0030] Working principle: This embodiment provides a cold forging radiator stamping positioning mold. First, when the lower mold 1 and the upper mold 2 are opened, if the cold-forged radiator and the upper mold 2 are "cold-welded", the operator can directly control the first electric hydraulic push rod 4 on the bracket 3 to push the mounting frame 5 down. At this time, the mounting frame 5 drives several sets of auxiliary rods 6 at its bottom to descend synchronously. At this time, the auxiliary rods 6 will descend in the cavity of the upper mold 2 stamping head. Then, the T-shaped end 602 can apply a downward pushing force to the radiator, thereby quickly separating the radiator from the upper mold 2, ensuring that the operator can pick up the parts normally and improving the convenience of the device.

[0031] Secondly, under normal circumstances, the middle section 802 and the lower section 803 are located in the inner cavity 601 of the auxiliary rod 6, while the upper section 801 is located in the lower plate 501 of the mounting bracket 5. This ensures the overall strength of the auxiliary rod 6, facilitates the auxiliary rod 6 to effectively apply a pushing force to the radiator, and prevents dust from entering the cavity of the upper die 2's punching head through the inner cavity 601. When the radiator and the upper die 2 experience a "cold welding" phenomenon, and it is necessary to control the auxiliary rod 6 to apply a pushing force to the radiator, the drive plate 701 can be raised in advance by the second electro-hydraulic push rod 702. Then, the pressure relief rod 8 of the drive plate 701 rises, and only a small increase is needed to disengage the upper section 801 from the lower plate 501 of the mounting bracket 5. At this time, the lower section 801... When section 803 detaches from the T-shaped end of the inner cavity 601, the cavity of the upper die 2 punch head can be directly connected to the outside through the inner cavity 601 and the semi-circular groove 804 of the middle section 802, thereby relieving pressure on the cavity of the upper die 2 punch head. Then, the heat sink is pushed and separated by the auxiliary rod 6. At this time, a small force can be applied to make the auxiliary rod 6 descend in the cavity of the upper die 2 punch head. This can prevent the auxiliary rod 6 from deforming and ensure that the auxiliary rod 6 can push the heat sink off the upper die 2 smoothly and quickly. It can also avoid the situation where the heat sink rod is deformed or damaged due to excessive force. Therefore, it can greatly improve the effect of the auxiliary rod 6 in pushing and separating the heat sink.

[0032] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A stamping positioning die for a cold-forged radiator, characterized in that, It includes a lower mold (1) and an upper mold (2). A bracket (3) is arranged at the top center of the upper mold (2). A mounting frame (5) is slidably arranged inside the bracket (3). A first electric hydraulic push rod (4) is arranged at the top center of the bracket (3). The piston end of the first electric hydraulic push rod (4) is connected to the top center of the mounting frame (5). Several sets of equidistant auxiliary rods (6) are arranged at the bottom of the mounting frame (5). The auxiliary rod (6) has an inner cavity (601) and a pressure relief rod (8) is arranged in the inner cavity (601). The mounting bracket (5) has a drive structure (7).

2. The stamping positioning die for a cold-forged radiator according to claim 1, characterized in that, The bottom end of the auxiliary rod (6) is a T-shaped end (602), which is located in the stamping head cavity of the upper die (2).

3. The stamping positioning die for a cold-forged radiator according to claim 1, characterized in that, The mounting bracket (5) includes a lower plate (501), an upper plate (502), and a connecting rod (503). The connecting rod (503) is evenly distributed around the top of the lower plate (501). The upper plate (502) is arranged on the top of the connecting rod (503). The lower plate (501) and the connecting rod (503) are coaxial. The auxiliary rod (6) is arranged on the lower plate (501). The upper plate (502) is connected to the piston of the first electric hydraulic push rod (4). The column of the bracket (3) passes through the lower plate (501) and the upper plate (502).

4. The stamping positioning die for a cold-forged radiator according to claim 3, characterized in that, The drive structure (7) includes a drive plate (701) and a second electro-hydraulic push rod (702). The second electro-hydraulic push rod (702) is arranged at the bottom center of the upper plate (502). The drive plate (701) is arranged at the piston end of the second electro-hydraulic push rod (702). The drive plate (701) is coaxial with the lower plate (501).

5. The stamping positioning die for a cold-forged radiator according to claim 4, characterized in that, The pressure relief rod (8) is divided into an upper section (801), a middle section (802) and a lower section (803) from top to bottom. The middle section (802) has several sets of semi-circular grooves (804) at equal intervals around its circumference.

6. The stamping positioning die for a cold-forged radiator according to claim 5, characterized in that, The top of the upper section (801) is connected to the drive plate (701), the upper section (801) is located inside the lower plate (501), the middle section (802) is located inside the auxiliary rod (6), and the lower section (803) is located inside the T-shaped end of the bottom of the auxiliary rod (6), and the bottom of the lower section (803) is flush with the bottom of the T-shaped end (602).

7. The stamping positioning die for a cold-forged radiator according to claim 6, characterized in that, The drive plate (701) has several sets of limiting blocks (703) arranged at equal intervals around its perimeter, and the limiting blocks (703) are fitted onto the columns of the bracket (3).

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