A cooling device for an automobile stamping die

Abstract

This utility model discloses a cooling device for automotive stamping dies, belonging to the field of stamping die technology. It includes a worktable and a support; a die cavity is fixedly mounted on the worktable, and a punch corresponding to the die cavity is slidably mounted vertically within the support; a groove is formed within the punch, and several cooling holes communicating with the groove are formed at the bottom of the punch, corresponding to the die cavity; a sealing component is provided within the groove to close the cooling holes, and an adjusting component capable of raising and lowering the sealing component is also provided within the groove; a heat dissipation hole communicating with the die cavity is formed within the worktable, extending through the entire worktable, and an adjusting plate is slidably mounted within the die cavity. This application provides cooling holes within the punch, eliminating the need to move the cooling component during cooling and avoiding concerns about the space occupied by the cooling component; simultaneously, the adjusting plate can slide into the heat dissipation hole, allowing the bottom of the die cavity to communicate with the outside through the heat dissipation hole, improving the air convection effect during air blowing cooling and significantly enhancing the cooling effect.

Description

Technical Field

[0001] This utility model provides a cooling device for automotive stamping dies, belonging to the field of stamping die technology. Background Technology

[0002] In the automotive manufacturing industry, stamping is a crucial process, as many automotive parts require stamping for production. During stamping, intense friction occurs between the die and the sheet metal, and a significant amount of heat is generated due to factors such as plastic deformation. If this heat is not dissipated effectively and promptly, it can negatively impact the stamping process and the quality of the final product.

[0003] Currently, air cooling is the most common cooling method for automotive stamping dies. However, in practical applications, the cooling effect is poor for dies used in part stamping, especially the die cavity. The die cavity, used to shape the part during stamping, has a relatively enclosed internal space, typically with only one opening opposite the punch. This unique structure hinders airflow; when air cooling is used, effective convection is difficult to achieve within the die cavity, preventing heat from being carried away effectively and resulting in poor cooling. This is especially true for deep cylindrical parts such as oil filter housings and shock absorber cylinders, where the cooling effect is significantly reduced. Furthermore, because the punch and die need to cooperate, air cooling of the die cavity requires the cooling components to be moved to the corresponding position within the die cavity after the punch and die are completely separated. This operation is cumbersome and the cooling components tend to occupy excessive space. Therefore, a cooling device for automotive stamping dies is needed to address these issues. Utility Model Content

[0004] The technical problem this invention aims to solve is that for some cylindrical parts in automotive stampings, the cooling effect is poor due to the relatively enclosed internal space of the die; at the same time, transferring the cooling components to the position corresponding to the die is not only troublesome, but also tends to occupy too much space.

[0005] To solve the above problems, the proposed technical solution is as follows: a cooling device for automotive stamping dies, comprising a worktable, on which a support is fixedly mounted; a die cavity is fixedly mounted on the worktable, and a punch corresponding to the die cavity is slidably mounted vertically within the support; further comprising:

[0006] A first cooling fan and an adjusting plate are provided; a groove is provided inside the punch, and several cooling holes communicating with the groove are provided at the bottom of the punch, and the cooling holes correspond to the die; the first cooling fan is mounted on a support, and the working end of the first cooling fan is connected to the groove through a conveying pipe; a sealing component is provided inside the groove to close the cooling holes, and an adjusting component is provided inside the groove to drive the sealing component to rise and fall; a heat dissipation hole communicating with the die is provided inside the worktable, the heat dissipation hole runs through the entire worktable, and the adjusting plate is slidably disposed inside the die.

[0007] As an improvement, the adjusting plate is fitted to the inner wall of the die, and the diameter of the heat dissipation hole is larger than the inner diameter of the die.

[0008] As an improvement, an electric telescopic rod is fixedly installed on the ground below the workbench, and the working end of the electric telescopic rod passes through the heat dissipation hole, the concave mold and is fixedly connected to the adjustment plate.

[0009] As an improvement, the sealing assembly includes a sealing plate and a blocking block. The sealing plate, which can block all cooling holes, is slidably disposed in the groove, and the blocking block is located in the cooling holes and is fixedly connected to the bottom of the sealing plate.

[0010] As an improvement, the adjustment assembly includes a motor and a lead screw. The motor is positioned above the punch, and the lead screw is rotatably positioned within the groove and fixedly connected to the output shaft of the motor. The sealing plate is threadedly connected to the lead screw. A limit rod is fixedly positioned within the groove, and the sealing plate is slidably sleeved on the limit rod.

[0011] As an improvement, the inner wall of the bracket is provided with a cooling pipe corresponding to the punch, and the cooling pipe and cooling hole are arranged alternately; a second cooling fan is provided on the bracket, and the working end of the second cooling fan is connected to the cooling pipe.

[0012] As an improvement, the bracket is provided with a hydraulic rod, and the punch is fixedly connected to the working end of the hydraulic rod.

[0013] The beneficial effects of this utility model are:

[0014] 1. The bottom of the punch has several cooling holes that communicate with the groove, and the cooling holes correspond to the die. In this application, cooling holes are directly opened in the punch. When the punch and die are separated, cold air is directly blown into the die through the cooling holes to cool the inside of the die. There is no need to move the cooling components, and there is no need to worry about the space occupied by the cooling components.

[0015] 2. The worktable has heat dissipation holes that communicate with the die cavity, and the adjustment plate is slidably set inside the die cavity. When cooling the inside of the die cavity, the adjustment plate can be slid into the heat dissipation holes, so that the bottom of the die cavity can communicate with the outside through the heat dissipation holes, which can improve the air convection effect when the cooling holes are blown for cooling, and greatly improve the cooling effect. Attached Figure Description

[0016] Figure 1 This is a perspective view of a cooling device for an automotive stamping die according to the present invention.

[0017] Figure 2 This is a perspective view of a cooling device for an automotive stamping die according to the present invention.

[0018] Figure 3 This is a cross-sectional view of the worktable and die of a cooling device for an automotive stamping die according to this utility model.

[0019] Figure 4 This is a cross-sectional view of the punch of a cooling device for an automotive stamping die according to this utility model.

[0020] 1. Workbench; 2. Support frame; 3. Second cooling fan; 4. Hydraulic rod; 5. First cooling fan; 6. Punch; 7. Die;

[0021] 8. Electric telescopic rod; 9. Cooling pipe; 10. Cooling hole; 11. Adjusting plate; 12. Heat dissipation hole; 13. Groove; 14. Blocking block; 15. Sealing plate; 16. Lead screw; 17. Motor; 18. Limiting rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] according to Figure 1-4 As shown: This utility model provides a cooling device for automotive stamping dies: including a worktable 1, on which a bracket 2 is fixedly mounted; a die 7 is fixedly mounted on the worktable 1, and a punch 6 corresponding to the die 7 is slidably mounted up and down inside the bracket 2; a hydraulic rod 4 is mounted on the bracket 2, and the punch 6 is fixedly connected to the working end of the hydraulic rod 4, so that the up and down control of the punch 6 during stamping can be conveniently achieved through the hydraulic rod 4.

[0024] like Figure 4 As shown, a groove 13 is provided inside the punch 6, and several cooling holes 10 communicating with the groove 13 are provided at the bottom of the punch 6, and the cooling holes 10 correspond to the die 7; the first cooling fan 5 is mounted on the bracket 2, and the working end of the first cooling fan 5 is connected to the groove 13 through a conveying pipe; the conveying pipe is a sufficiently long flexible hose to ensure that the first cooling fan 5 can always be connected to the groove 13 when the punch 6 moves up and down. A sealing component is provided inside the groove 13 to close the cooling holes 10, and an adjusting component is provided inside the groove 13 to drive the sealing component to rise and fall;

[0025] The sealing assembly includes a sealing plate 15 and a blocking block 14. The sealing plate 15, which can block all the cooling holes 10, is slidably disposed in the groove 13. The blocking block 14 is located in the cooling holes 10 and is fixedly connected to the bottom of the sealing plate 15. The lower end of the blocking block 14 is flush with the lower end of the punch 6. The setting of the blocking block 14 can ensure the flatness of the lower end of the punch 6 and avoid affecting the normal stamping operation.

[0026] The adjustment assembly includes a motor 17 and a lead screw 16. The motor 17 is positioned above the punch 6, and the lead screw 16 is rotatably positioned within the groove 13 and is fixedly connected to the output shaft of the motor 17. A sealing plate 15 is threadedly connected to the lead screw 16. A limit rod 18 is fixedly positioned within the groove 13, and the sealing plate 15 is slidably fitted onto the limit rod 18. The limit rod 18 restricts the rotation of the sealing plate 15, thereby converting the rotation of the lead screw 16 into the sliding of the sealing plate 15.

[0027] like Figure 3 As shown, the worktable 1 has a heat dissipation hole 12 that communicates with the die 7. The heat dissipation hole 12 runs through the entire worktable 1, and the adjustment plate 11 is slidably disposed in the die 7.

[0028] The adjusting plate 11 fits snugly against the inner wall of the die 7, ensuring that the die 7 is in a normal working state during stamping. The diameter of the heat dissipation hole 12 is larger than the inner diameter of the die 7. When the adjusting plate 11 slides into the heat dissipation hole 12, it ensures that the bottom of the die 7 is connected to the outside through the gap between the heat dissipation hole 12 and the adjusting plate 11, thus ensuring air convection. An electric telescopic rod 8 is fixedly installed on the ground below the worktable 1, and the working end of the electric telescopic rod 8 passes through the heat dissipation hole 12 and is fixedly connected to the die 7 and the adjusting plate 11. The electric telescopic rod 8 facilitates the sliding control of the adjusting plate 11.

[0029] like Figure 1 , 2 As shown, the inner wall of the support 2 is provided with a cooling pipe 9 corresponding to the punch 6, and a second cooling fan 3 is provided on the support 2, with the working end of the second cooling fan 3 connected to the cooling pipe 9. The second cooling fan 3 and the cooling pipe 9 can cool the punch 6, and the cooling pipe 9 and the cooling hole 10 are staggered to avoid excessive mutual interference of airflow during cooling.

[0030] The principle of this utility model

[0031] When the cooling system of the automotive stamping die provided in this application is working normally, such as Figure 1 , 2 As shown, after the die 7 and punch 6 are in the separated state, the formed stamped part is removed, and then the motor 17 is started; as Figure 4As shown, the sealing plate 15 moves the blocking block 14 upward, releasing the blockage of the cooling hole 10. The first cooling fan 5 is activated to deliver cold air into the groove 13. The cold air is blown into the cavity 7 through the groove 13 and the cooling hole 10; as shown... Figure 3 As shown, activating the electric telescopic rod 8 moves the adjusting plate 11 into the heat dissipation hole 12. At this time, the lower end of the die 7 is no longer closed, and the cold air blown into the die 7 from the cooling hole 10 can flow out from the bottom of the worktable 1 through the heat dissipation hole 12, forming a certain convection effect and greatly improving the cooling effect. Figure 1 , 2 As shown, when the die 7 separates from the punch 6, the second cooling fan 3 can be activated to cool the punch 6 simultaneously through the cooling pipe 9.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cooling device for an automotive stamping die, comprising a worktable (1), on which a support (2) is fixedly mounted; a die cavity (7) is fixedly mounted on the worktable (1), and a punch (6) corresponding to the die cavity (7) is slidably mounted vertically within the support (2); characterized in that, Also includes: The first cooling fan (5) and the adjusting plate (11) are provided; the punch (6) has a groove (13) and a number of cooling holes (10) communicating with the groove (13) are provided at the bottom of the punch (6), and the cooling holes (10) correspond to the die (7); the first cooling fan (5) is set on the bracket (2), and the working end of the first cooling fan (5) is connected to the groove (13) through the conveying pipe; the groove (13) is provided with a sealing component that closes the cooling holes (10), and the groove (13) is provided with an adjusting component that can drive the sealing component to rise and fall; the worktable (1) has a heat dissipation hole (12) communicating with the die (7), the heat dissipation hole (12) runs through the entire worktable (1), and the adjusting plate (11) is slidably set in the die (7).

2. The cooling device for an automotive stamping die according to claim 1, characterized in that: The adjusting plate (11) is in contact with the inner wall of the die (7), and the diameter of the heat dissipation hole (12) is larger than the inner diameter of the die (7).

3. The cooling device for an automotive stamping die according to claim 2, characterized in that: An electric telescopic rod (8) is fixedly installed on the ground below the workbench (1), and the working end of the electric telescopic rod (8) passes through the heat dissipation hole (12), the die (7) and is fixedly connected to the adjustment plate (11).

4. The cooling device for an automotive stamping die according to claim 1, characterized in that: The sealing assembly includes a sealing plate (15) and a blocking block (14). The sealing plate (15), which can block all cooling holes (10), is slidably disposed in the groove (13). The blocking block (14) is located in the cooling hole (10) and is fixedly connected to the bottom of the sealing plate (15).

5. The cooling device for an automotive stamping die according to claim 4, characterized in that: The adjustment assembly includes a motor (17) and a lead screw (16). The motor (17) is positioned above the punch (6), and the lead screw (16) is rotatably positioned in the groove (13) and fixedly connected to the output shaft of the motor (17). The sealing plate (15) is threadedly connected to the lead screw (16). A limit rod (18) is fixedly positioned in the groove (13), and the sealing plate (15) is slidably sleeved on the limit rod (18).

6. The cooling device for an automotive stamping die according to claim 1, characterized in that: The inner wall of the bracket (2) is provided with a cooling pipe (9) corresponding to the punch (6), and the cooling pipe (9) and the cooling hole (10) are arranged alternately; a second cooling fan (3) is provided on the bracket (2), and the working end of the second cooling fan (3) is connected to the cooling pipe (9).

7. The cooling device for an automotive stamping die according to claim 1, characterized in that: The bracket (2) is provided with a hydraulic rod (4), and the punch (6) is fixedly connected to the working end of the hydraulic rod (4).

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