A forming die for a key automobile part formed by additive manufacturing and precision forging

Abstract

The utility model discloses a kind of automobile key parts forming die of additive manufacturing and precision forging composite forming, it is related to automobile parts forming die technical field, including forging mechanism, die mechanism is installed in forging mechanism inside, die mechanism includes No. 1 mould and No. 2 mould, No. 1 mould upper portion fixedly connected with limiting component, No. 2 mould is slidably inserted with limiting component.The utility model can accurately exert forging pressure by the cooperation of oil cylinder and pressure block in forging mechanism, the limiting structure of No. 1 limit rail and No. 1 sliding block, No. 2 limit rail and No. 2 sliding block, ensure that pressure block and No. 1 mould move stably, improve forging accuracy, the accurate positioning of No. 1 mould and No. 2 mould is realized in limiting component in die mechanism, push material component drives No. 1 mould to move, it is convenient for automatic feeding, heat pipe is attached mould profile design in heat dissipation mechanism, inlet pipe, outlet pipe cooperate cooling circulation mechanism to form double-cycle cooling system.

Description

Technical Field

[0001] This utility model relates to the field of automotive component molding die technology, and in particular to a molding die for key automotive components using additive manufacturing and precision forging composite molding. Background Technology

[0002] Additive manufacturing and precision forging composite molds refer to composite manufacturing tools that use additive manufacturing technology to customize the mold structure and then combine it with precision forging process to plastically shape metal materials. These molds are usually used in the production of key automotive components (such as engine blocks, chassis suspension parts, gears, etc.). The core of these molds is to combine the design flexibility of additive manufacturing with the high-performance forming advantages of precision forging to achieve integrated manufacturing of complex structures, high precision, and high strength parts.

[0003] However, in existing technologies, there is a conflict between the conformal cooling channels of additive manufacturing and the forging process. In order to meet the cooling efficiency requirements, the cooling channels are made to fit closely to the mold surface through additive manufacturing technology. Although this can improve the cooling efficiency, its complex three-dimensional structure requires "hollowing out" irregular flow channels inside the mold. This directly weakens the material cross-sectional area of ​​the critical load-bearing area. The material thickness in this area is insufficient and it is difficult to withstand the instantaneous pressure and cyclic thermal load during the forging process. The pressure causes mechanical fatigue of the material, and temperature fluctuations cause thermal stress cycles. The combination of the two makes the area near the cooling channel a stress concentration area, which will lead to thermal fatigue cracking due to insufficient strength. The weakening of structural strength is even more significant when the channel is close to the parting surface, corners and other parts of the mold where the stress is most concentrated. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a molding die for key automotive components that combines additive manufacturing and precision forging.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a molding die for key automotive components using additive manufacturing and precision forging composite molding, comprising a forging mechanism, a die mechanism installed inside the forging mechanism, the die mechanism comprising a first die and a second die, a limiting component fixedly connected to the upper part of the first die, the second die slidably inserted into the limiting component, a heat dissipation mechanism fixedly connected inside the first die, the heat dissipation mechanism comprising a heat pipe, an inlet pipe and an outlet pipe, the inlet pipe being fixedly connected to the inlet end of the heat pipe, and both ends of the inlet pipe being equipped with a cooling circulation mechanism, the outlet pipe being fixedly connected to the outlet end of the heat pipe, and both ends of the outlet pipe being fixedly connected to the cooling circulation mechanism, a mounting bracket being fixedly connected inside the heat pipe, and a propeller being rotatably connected to the center of the mounting bracket.

[0006] Preferably, a No. 1 control valve is fixedly connected to the surface of the inlet pipe, and a No. 2 control valve is fixedly connected to the surface of the outlet pipe.

[0007] Preferably, the mounting bracket is arranged in a triangular shape inside the heat pipe.

[0008] Preferably, the liquid outlet end of the cooling circulation mechanism is fixedly connected to the liquid inlet pipe, and the liquid outlet end of the cooling circulation mechanism is fixedly connected to the liquid outlet pipe.

[0009] Preferably, the forging mechanism includes a fixed frame, a hydraulic cylinder is fixedly connected to the upper part of the fixed frame, a pressure block is fixedly connected to the bottom of the hydraulic cylinder, the pressure block is located above the second mold, a first limiting rail is fixedly connected to the inner side of the fixed frame, a first slider is slidably connected to the surface of the first limiting rail, and the first slider is fixedly connected to the side of the pressure block.

[0010] Preferably, a pusher assembly is fixedly connected to the surface of the fixed frame, the movable end of the pusher assembly is fixedly connected to the first mold, and a second limiting rail is fixedly connected to the surface of the fixed frame, a second slider is slidably connected to the surface of the second limiting rail, and the second slider is fixedly connected to the bottom of the first mold.

[0011] Preferably, the cooling circulation mechanism includes a mounting box, inside which a coolant storage tank is installed, and a dual-axis motor is fixedly connected inside the mounting box. One output shaft of the dual-axis motor is fixedly connected to a circulation pump, and the other output shaft of the circulation pump is fixedly connected to a fan blade. A heat sink assembly is provided at the end of the fan blade, and the heat sink assembly is fixedly connected to the mounting box. Connecting pipes are provided between the coolant storage tank, the circulation pump, and the fan blade, and the inlet pipe is fixedly connected to the outlet end of the fan blade. The inlet end of the heat sink assembly is fixedly connected to the outlet pipe.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the forging mechanism utilizes the cooperation between the hydraulic cylinder and the pressure block to precisely apply forging pressure. The limiting structures of the first limiting track and the first slider, and the second limiting track and the second slider, ensure stable movement of the pressure block and the first mold, improving forging accuracy. The limiting components in the mold mechanism achieve precise positioning of the first and second molds. The pushing component drives the first mold to move, facilitating automated feeding. The heat dissipation mechanism features heat pipes designed to fit the mold surface. The inlet and outlet pipes, together with the cooling circulation mechanism, form a dual-circulation cooling system. Single / dual systems can be activated according to temperature requirements, enhancing cooling flexibility. The mounting bracket provides triangular support for the heat pipes, and the propeller agitates the coolant to enhance heat exchange. This improves cooling efficiency without significantly reducing the mold's load-bearing cross-sectional area. Simultaneously, the mounting bracket strengthens the structural strength near the channel, enhancing the mold's resistance to thermal fatigue cracking and achieving synergistic optimization of cooling efficiency and structural strength.

[0013] 2. In this utility model, the circulating pump and fan blades are synchronously driven by a dual-axis motor, and the coolant circulation and heat dissipation are achieved through a single power source, simplifying the system structure and reducing energy consumption. The coolant storage tank serves as a medium buffer unit to ensure stable pressure in the circulation system. The circulating pump delivers low-temperature coolant to the heat conduction pipe through the inlet pipe via a connecting pipe. After absorbing heat from the mold, the coolant flows back to the heat dissipation frame assembly through the outlet pipe, forming a closed-loop heat exchange circuit. The fan blades force convection to accelerate the cooling of the coolant in the heat dissipation frame assembly, ensuring the cooling effect. This structure achieves a compact layout through modular design, significantly improving the cooling reliability and service life of the mold. Attached Figure Description

[0014] Figure 1 This utility model presents a first three-dimensional structural schematic diagram of a molding die for key automotive components, which is a composite molding process combining additive manufacturing and precision forging. Figure 2 This utility model presents a second three-dimensional structural schematic diagram of a molding die for key automotive components, which is a composite molding process combining additive manufacturing and precision forging. Figure 3 This utility model presents a three-dimensional structural diagram of the forging mechanism in a molding die for key automotive components, which is a composite of additive manufacturing and precision forging. Figure 4 This utility model presents a three-dimensional structural diagram of a heat dissipation mechanism in a molding die for a key automotive component, which is a composite material of additive manufacturing and precision forging. Figure 5 This utility model presents a three-dimensional structural diagram of a heat-conducting pipe in a molding die for a key automotive component, which is a composite of additive manufacturing and precision forging. Figure 6 This invention presents a three-dimensional structural diagram of a cooling circulation mechanism in a molding die for a key automotive component, which is a composite material for additive manufacturing and precision forging.

[0015] Legend: 1. Forging mechanism; 11. Fixing frame; 12. Hydraulic cylinder; 13. Pressure block; 14. No. 1 limit track; 15. No. 1 slider; 16. Pushing assembly; 17. No. 2 limit track; 18. No. 2 slider; 2. Mold mechanism; 21. No. 1 mold; 22. No. 2 mold; 23. Limiting assembly; 3. Heat dissipation mechanism; 31. Heat conduction pipe; 32. Liquid inlet pipe; 33. Liquid outlet pipe; 34. Mounting frame; 35. Propeller; 36. No. 1 control valve; 37. No. 2 control valve; 4. Cooling circulation mechanism; 41. Mounting box; 42. Coolant storage tank; 43. Dual-shaft motor; 44. Circulation pump; 45. Fan blade; 46. Heat dissipation frame assembly. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1: As Figures 1-6 As shown, this utility model provides a molding die for key automotive components using additive manufacturing and precision forging composite molding. It includes a forging mechanism 1, with a die mechanism 2 installed inside the forging mechanism 1. The die mechanism 2 includes a first die 21 and a second die 22. A limiting component 23 is fixedly connected to the upper part of the first die 21, and the second die 22 is slidably inserted into the limiting component 23. A heat dissipation mechanism 3 is fixedly connected inside the first die 21. The heat dissipation mechanism 3 includes a heat-conducting pipe 31, an inlet pipe 32, and an outlet pipe 33. The inlet pipe 32 is fixedly connected to the inlet end of the heat-conducting pipe 31, and both ends of the inlet pipe 32 are equipped with a cooling circulation mechanism 4. The outlet pipe 33 is fixedly connected to the outlet end of the heat-conducting pipe 31, and both ends of the outlet pipe 33 are fixedly connected to the cooling circulation mechanism 4. A mounting bracket 34 is fixedly connected inside the heat-conducting pipe 31, and a propeller 35 is rotatably connected to the center of the mounting bracket 34. A first control valve 36 is fixedly connected to the surface of the liquid inlet pipe 32, and a second control valve 37 is fixedly connected to the surface of the liquid outlet pipe 33. The mounting bracket 34 is arranged in a triangular shape inside the heat conduction pipe 31. The liquid outlet end of the cooling circulation mechanism 4 is fixedly connected to the liquid inlet pipe 32, and the liquid outlet end of the cooling circulation mechanism 4 is fixedly connected to the liquid outlet pipe 33. The forging mechanism 1 includes a fixed frame 11, with a hydraulic cylinder 12 fixedly connected to the upper part of the fixed frame 11 and a pressure block 13 fixedly connected to the bottom of the hydraulic cylinder 12. The pressure block 13 is located above the second mold 22. A first limiting rail 14 is fixedly connected to the inner side of the fixed frame 11. A first slider 15 is slidably connected to the surface of the first limiting rail 14. The first slider 15 is fixedly connected to the side of the pressure block 13. A pusher assembly 16 is fixedly connected to the surface of the fixed frame 11. The moving end of the pusher assembly 16 is fixedly connected to the first mold 21. A second limiting rail 17 is fixedly connected to the surface of the fixed frame 11. A second slider 18 is slidably connected to the surface of the second limiting rail 17. The second slider 18 is fixedly connected to the bottom of the first mold 21.

[0019] The specific settings and functions of this embodiment are described in detail below. The extension and retraction of the pusher assembly 16 drives the first mold 21 to move in position, which facilitates the feeding of material on the upper part of the first mold 21. The hydraulic cylinder 12 pushes the pressure block 13 to move downward, and the pressure block 13 pushes the second mold 22 to move downward for forging. The second slider 18 slides along the second limit track 17 to limit the movement of the first mold 21. The first slider 15 slides along the first limit track 14 to limit the pressure block 13, thereby improving the stability of the movement of the pressure block 13. During the production process of the mold mechanism 2, the heat dissipation mechanism 3 cools down the components inside the first mold 21. The dual-axis motor 43 synchronously drives the circulation pump 44 and the fan blade 45 to run. The fan blade 45 runs the heat dissipation frame assembly 46 to cool down the coolant. The circulation pump 44 completes the circulation of the coolant inside the heat dissipation mechanism 3. When the coolant flows inside the heat conduction pipe 31, it drives the propeller 35 to rotate, so that the coolant can absorb the heat absorbed by the heat conduction pipe 31 inside the heat conduction pipe 31. The mounting bracket 34 provides stable support for the heat conduction pipe 31.

[0020] During the production process of the mold mechanism 2, the heat dissipation mechanism 3 is used to cool the components inside the first mold 21. Depending on the temperature of the heat pipe 31, it is decided whether to use one cooling circulation mechanism 4 or two cooling circulation mechanisms 4.

[0021] Through the cooperation of the hydraulic cylinder 12 and the pressure block 13 in the forging mechanism 1, forging pressure can be applied precisely. The limiting structure of the first limiting rail 14 and the first slider 15, and the second limiting rail 17 and the second slider 18 ensures the stable movement of the pressure block 13 and the first mold 21, improving forging accuracy. In the mold mechanism 2, the limiting component 23 realizes the precise positioning of the first mold 21 and the second mold 22. The pushing component 16 drives the first mold 21 to move, which facilitates automated feeding. In the heat dissipation mechanism 3, the heat conduction pipe 31 is designed to fit the mold surface. The liquid inlet pipe 32 and the liquid outlet pipe 33 cooperate with the cooling circulation mechanism 4 to form a dual circulation cooling system. The single / dual system can be activated according to the temperature requirements to improve cooling flexibility. The mounting bracket 34 supports the heat conduction pipe 31 in a triangular shape. The propeller 35 agitates the coolant to enhance heat exchange. Without significantly reducing the cross-sectional area of ​​the mold, the cooling efficiency is improved. At the same time, the mounting bracket 34 enhances the structural strength near the channel, improves the mold's resistance to thermal fatigue cracking, and achieves synergistic optimization of cooling efficiency and structural strength.

[0022] Example 2: Figure 1 and Figure 2As shown, the cooling circulation mechanism 4 includes a mounting box 41, inside which a coolant storage tank 42 is installed, and a dual-axis motor 43 is fixedly connected inside the mounting box 41. One output shaft of the dual-axis motor 43 is fixedly connected to a circulation pump 44, and the other output shaft of the circulation pump 44 is fixedly connected to a fan blade 45. A heat sink assembly 46 is provided at the end of the fan blade 45. The heat sink assembly 46 is fixedly connected to the mounting box 41. Connecting pipes are provided between the coolant storage tank 42, the circulation pump 44, and the fan blade 45. The inlet pipe 32 is fixedly connected to the outlet end of the fan blade 45, and the inlet end of the heat sink assembly 46 is fixedly connected to the outlet pipe 33.

[0023] The overall effect of this embodiment is that the dual-axis motor 43 synchronously drives the circulating pump 44 and the fan blade 45, realizing coolant circulation and heat dissipation through a single power source, simplifying the system structure and reducing energy consumption. The coolant storage tank 42 serves as a medium buffer unit to ensure stable pressure in the circulation system. The circulating pump 44 delivers low-temperature coolant to the heat conduction pipe 31 through the inlet pipe 32 via the connecting pipe. After absorbing heat from the mold, the coolant flows back to the heat dissipation frame assembly 46 through the outlet pipe 33, forming a closed-loop heat exchange circuit. The fan blade 45 forces convection to accelerate the cooling of the coolant in the heat dissipation frame assembly 46, ensuring the cooling effect. This structure achieves a compact layout through modular design, significantly improving the cooling reliability and service life of the mold.

[0024] The usage and working principle of this device are as follows: The extension and retraction of the pusher assembly 16 drives the first mold 21 to move in position, which facilitates the feeding of material on the upper part of the first mold 21. The hydraulic cylinder 12 pushes the pressure block 13 to move downward, and the pressure block 13 pushes the second mold 22 to move downward for forging. The second slider 18 slides along the second limit track 17 to limit the movement of the first mold 21. The first slider 15 slides along the first limit track 14 to limit the pressure block 13, thereby improving the stability of the movement of the pressure block 13. During the production process of the mold mechanism 2, the heat dissipation mechanism 3 cools down the components inside the first mold 21. The dual-axis motor 43 synchronously drives the circulation pump 44 and the fan blade 45 to run. The fan blade 45 runs the heat dissipation frame assembly 46 to cool down the coolant. The circulation pump 44 completes the circulation of the coolant inside the heat dissipation mechanism 3. When the coolant flows inside the heat conduction pipe 31, it drives the propeller 35 to rotate, so that the coolant can absorb the heat absorbed by the heat conduction pipe 31 inside the heat conduction pipe 31. The mounting bracket 34 provides stable support for the heat conduction pipe 31.

[0025] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A molding die for key automotive components, manufactured by a combination of additive manufacturing and precision forging, comprising a forging mechanism (1), wherein a die mechanism (2) is installed inside the forging mechanism (1), the die mechanism (2) comprising a first die (21) and a second die (22), wherein a limiting component (23) is fixedly connected to the upper part of the first die (21), and the second die (22) is slidably inserted into the limiting component (23), characterized in that: The first mold (21) is fixedly connected to a heat dissipation mechanism (3). The heat dissipation mechanism (3) includes a heat-conducting pipe (31), an inlet pipe (32), and an outlet pipe (33). The inlet pipe (32) is fixedly connected to the inlet end of the heat-conducting pipe (31), and a cooling circulation mechanism (4) is installed at both ends of the inlet pipe (32). The outlet pipe (33) is fixedly connected to the outlet end of the heat-conducting pipe (31), and both ends of the outlet pipe (33) are fixedly connected to the cooling circulation mechanism (4). A mounting bracket (34) is fixedly connected inside the heat-conducting pipe (31), and a propeller (35) is rotatably connected to the center of the mounting bracket (34).

2. The molding die for key automotive components using additive manufacturing and precision forging composite molding as described in claim 1, characterized in that: A first control valve (36) is fixedly connected to the surface of the inlet pipe (32), and a second control valve (37) is fixedly connected to the surface of the outlet pipe (33).

3. The molding die for key automotive components using additive manufacturing and precision forging composite molding as described in claim 1, characterized in that: The mounting bracket (34) is arranged in a triangular shape inside the heat pipe (31).

4. The molding die for key automotive components using additive manufacturing and precision forging composite molding as described in claim 1, characterized in that: The outlet end of the cooling circulation mechanism (4) is fixedly connected to the inlet pipe (32), and the outlet end of the cooling circulation mechanism (4) is fixedly connected to the outlet pipe (33).

5. The molding die for key automotive components using additive manufacturing and precision forging composite molding as described in claim 1, characterized in that: The forging mechanism (1) includes a fixed frame (11), a hydraulic cylinder (12) is fixedly connected to the upper part of the fixed frame (11), a pressure block (13) is fixedly connected to the bottom of the hydraulic cylinder (12), the pressure block (13) is located above the second mold (22), a first limiting rail (14) is fixedly connected to the inner side of the fixed frame (11), a first slider (15) is slidably connected to the surface of the first limiting rail (14), and the first slider (15) is fixedly connected to the side of the pressure block (13).

6. The molding die for key automotive components using additive manufacturing and precision forging composite molding as described in claim 5, characterized in that: The surface of the fixed frame (11) is fixedly connected to a pusher assembly (16), the moving end of the pusher assembly (16) is fixedly connected to the first mold (21), and the surface of the fixed frame (11) is fixedly connected to a second limiting rail (17), the surface of the second limiting rail (17) is slidably connected to a second slider (18), and the second slider (18) is fixedly connected to the bottom of the first mold (21).

7. The molding die for key automotive components using additive manufacturing and precision forging composite molding as described in claim 1, characterized in that: The cooling circulation mechanism (4) includes a mounting box (41), inside which a coolant storage tank (42) is installed, and a dual-axis motor (43) is fixedly connected inside the mounting box (41). One output shaft of the dual-axis motor (43) is fixedly connected to a circulation pump (44), and the other output shaft of the circulation pump (44) is fixedly connected to a fan blade (45). A heat sink assembly (46) is provided at the end of the fan blade (45). The heat sink assembly (46) is fixedly connected to the mounting box (41). A connecting pipe is provided between the coolant storage tank (42), the circulation pump (44), and the fan blade (45). The inlet pipe (32) is fixedly connected to the outlet end of the fan blade (45), and the inlet end of the heat sink assembly (46) is fixedly connected to the outlet pipe (33).

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