Forging die with internal cooling channel

Abstract

The utility model discloses a forge piece die with an internal cooling channel, which comprises a die main body, the die main body consists of an upper die and a lower die, and the inner side of the die main body is provided with a double-spiral cooling channel distributed along the surface of a cavity of the die main body. The cooling channel comprises a first cooling channel and a second cooling channel which are respectively arranged in the upper die and the lower die and are respectively communicated with a cooling medium inlet and a cooling medium outlet outside the die main body, and the cooling medium inlet and the cooling medium outlet are respectively arranged on the side surfaces of the upper die and the lower die; and the first cooling channel and the second cooling channel are communicated on the parting surface of the cavity through a butt joint structure. Due to the design of the spiral cooling channel, a cooling medium is in full contact with the die, the efficient and uniform cooling effect is achieved, the uniform cooling effect is beneficial to reducing the internal stress of the forge piece and improving the forming precision and the surface quality of the forge piece, and the cooling channel can be designed in a customized mode and is suitable for forge piece dies of different shapes.

Description

TECHNICAL FIELD

[0001] The utility model relates to a forging die technical field, especially a kind of forging die with internal cooling channel. BACKGROUND

[0002] Mold, industrial production is used to injection molding, blow molding, extrusion, die casting or forging pressure forming, smelting, stamping and other methods to obtain the desired product of various moulds and tools. In short, mold is the tool used to make shaped objects, and the tool is composed of various parts, and different molds are composed of different parts. It realizes the machining of the shape of the article mainly by the change of the physical state of the formed material.

[0003] In the forging process, the mold is easy to produce thermal fatigue and deformation due to long-time contact with high-temperature workpieces, resulting in shortened mold life and reduced forging precision. The traditional cooling method mainly uses external water spraying or air cooling, which has low and uneven cooling efficiency. Therefore, there is an urgent need for a mold structure that can achieve uniform and efficient cooling. SUMMARY

[0004] To solve the above technical problems, a forging die with internal cooling channel is provided, which optimizes the design of the cooling channel, improves the heat dissipation efficiency of the mold, prolongs the service life of the mold, and improves the forming quality of the forgings.

[0005] To achieve the above purpose, the utility model discloses a kind of forging die with internal cooling channel, including die main body, the die main body is composed of upper die and lower die, and double helix type cooling channel is distributed along the cavity surface of die main body and is arranged in the inner side of die main body, the cooling channel includes first cooling channel and second cooling channel respectively arranged in upper die and lower die, and is communicated with cooling medium inlet and cooling medium outlet outside die main body respectively, cooling medium inlet and cooling medium outlet are respectively arranged in the side of upper die and lower die, and first cooling channel and second cooling channel are communicated on the parting surface of cavity by butt joint structure.

[0006] Further, the first cooling channel and the second cooling channel have the same structure, the first cooling channel includes a main flow passage connected to the cooling medium inlet, and a distribution flow passage is connected below the main flow passage and distributed outside the cavity. The distribution flow passage is a spiral structure arranged equidistantly from the outer contour of the cavity. The outlet of the distribution flow passage is connected to the butt joint structure and is arranged on the left and right sides of the cavity, respectively.

[0007] Further, the cross-sectional shape of the first cooling channel and the second cooling channel is circular or elliptical, and the inner wall of the cooling channel is provided with a micro-protrusion structure.

[0008] Further, temperature sensors are installed in the cooling medium inlet, cooling medium outlet and cavity, respectively.

[0009] Furthermore, the cooling channel is connected to the external pipeline using a quick-connect type, and the external pipeline is connected to the pump body to deliver the cooling medium.

[0010] Furthermore, the docking structure adopts a self-locking quick connector, including a female connector on the upper mold and a male connector on the lower mold that matches the female connector, with the male connector and the female connector corresponding in position.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a forging mold with an internal cooling channel. The spiral cooling channel design allows the cooling medium to fully contact the mold, achieving a highly efficient and uniform cooling effect. By effectively controlling the mold temperature, it reduces thermal fatigue damage and deformation, extends the mold's service life, and the uniform cooling effect helps reduce internal stress in the forging, improves the forging accuracy and surface quality, and the cooling channel can be customized to adapt to forging molds of different shapes. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0015] Figure 3 This is a top view of the distribution of the cooling channels and cavity of this utility model.

[0016] Figure 4 This is a schematic diagram of the micro-protrusions inside the cooling channel of this utility model.

[0017] In the diagram: 1 is the upper mold; 2 is the lower mold; 3 is the cavity; 4 is the cooling channel; 41 is the first cooling channel; 411 is the main channel; 412 is the branch channel; 42 is the second cooling channel; 5 is the cooling medium inlet; 6 is the cooling medium outlet; 7 is the docking structure; 71 is the female connector; 72 is the male connector; 8 is the micro-protrusion structure. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] One embodiment of this utility model is as follows: Figure 1 and Figure 2 As shown, the mold body consists of an upper mold 1 and a lower mold 2. The mold body is made of high-strength, heat-resistant alloy steel to improve the mold's heat resistance and service life. The upper and lower molds are mounted on four vertically arranged guide rods. A hydraulic drive assembly is installed on the top of the guide rods, and the output end of the hydraulic drive assembly is connected to the top of the upper mold. A double-spiral cooling channel 4 is provided inside the mold body, distributed along the surface of the cavity 3 of the mold body. The cooling channel 4 includes a first cooling channel 41 and a second cooling channel 42 respectively located in the upper mold 1 and the lower mold 2, and respectively connected to the cooling medium inlet 5 and the cooling medium outlet 6 outside the mold body. The cooling medium inlet 5 and cooling medium outlet 6 are respectively located on the sides of the upper mold 1 and the lower mold 2. The first cooling channel 41 and the second cooling channel 42 are connected on the parting surface of the cavity 3 through the docking structure 7. The cooling medium enters the cooling channel through the inlet, flows through the upper mold and the lower mold, and is discharged from the outlet on the side of the lower mold through the docking structure, thereby improving the heat dissipation efficiency of the mold. By effectively controlling the mold temperature, thermal fatigue damage and deformation are reduced, and the service life of the mold is extended. The uniform cooling effect helps to reduce the internal stress of the forging, improve the forming accuracy and surface quality of the forging, and the cooling channel can be customized to adapt to forging molds of different shapes.

[0020] The first cooling channel 41 and the second cooling channel 42 have the same structure. The first cooling channel 41 includes a main channel 411 connected to the cooling medium inlet 5. Below the main channel 411 are branch channels 412 distributed on the outside of the cavity 3. The branch channels 412 are two sets of spiral structures equidistant from the outer contour of the cavity 3. The spiral cooling channel structure allows the cooling medium to fully contact the mold, achieving a highly efficient and uniform cooling effect. In this embodiment, the cavity is a rounded rectangular structure. The cooling channel, viewed from above, is a rounded rectangular structure with a size larger than the cavity. The cooling channel structure can be customized according to different cavity shapes to ensure cooling efficiency and uniformity. The outlet of the branch channel 412 is connected to the docking structure 7 and is respectively located on the left and right sides of the cavity 3.

[0021] In this embodiment, the cross-sectional shape of the first cooling channel 41 and the second cooling channel 42 is circular. The elliptical shape of the cooling channels can increase the contact area with the mold. Figure 4 As shown, the inner wall of the cooling channel is provided with a micro-protrusion structure 8 to enhance the turbulence effect and improve heat dissipation efficiency.

[0022] Temperature sensors are installed at the cooling medium inlet 5, cooling medium outlet 6, and cavity 3 to monitor the mold temperature in real time. The channel control system adjusts the flow rate and temperature of the cooling medium to achieve intelligent management of the cooling process and improve production efficiency.

[0023] The cooling channel 4 is connected to the external pipeline by a quick-connect type, which facilitates mold maintenance and replacement. The external pipeline is connected to the pump body to deliver the cooling medium.

[0024] The docking structure 7 adopts a self-locking quick connector, including a female connector 71 set on the upper mold 1 and a male connector 72 set on the lower mold 2 that matches the female connector 71. The male connector 72 and the female connector 71 are vertically aligned. The self-locking quick connector achieves self-locking after separation to prevent leakage of cooling medium. The specific structure is an existing technical solution and is not disclosed in this application.

[0025] The working principle of this embodiment is as follows: During the forging process, the high-temperature workpiece after calcination is placed in the cavity of the lower die, and the die temperature rises rapidly. The forging frequency and forging amplitude are adjusted according to the control system and the drive mechanism. The docking structure of the upper and lower dies is periodically connected. The cooling medium enters the first cooling channel from the cooling medium inlet, enters the two sets of spiral branch channels along the main channel, flows along the channel and absorbs the heat of the die. During the docking process, the male connector and the female connector are plugged in to connect the first cooling channel and the second cooling channel. Finally, the cooling medium is discharged from the cooling medium outlet. By monitoring the die temperature in real time, the control system can dynamically adjust the flow rate and temperature of the cooling medium to ensure that the die temperature is always within a reasonable range.

[0026] Several points need to be clarified: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and the relative positional relationships may change when the absolute position of the described objects changes. Second, in this document, relational terms such as "first" and "second" are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0027] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A forging die with an internal cooling channel, comprising a die body, characterized in that, The mold body is composed of an upper mold (1) and a lower mold (2). The inner side of the mold body is provided with a double spiral cooling channel (4) distributed along the surface of the cavity (3) of the mold body. The cooling channel (4) includes a first cooling channel (41) and a second cooling channel (42) respectively disposed in the upper mold (1) and the lower mold (2), and respectively connected to the cooling medium inlet (5) and the cooling medium outlet (6) outside the mold body. The cooling medium inlet (5) and the cooling medium outlet (6) are respectively disposed on the side of the upper mold (1) and the lower mold (2). The first cooling channel (41) and the second cooling channel (42) are connected on the parting surface of the cavity (3) through a docking structure (7).

2. A forging die with an internal cooling channel according to claim 1, characterized in that, The first cooling channel (41) and the second cooling channel (42) have the same structure. The first cooling channel (41) includes a main channel (411) connected to the cooling medium inlet (5). Below the main channel (411) are branch channels (412) distributed on the outside of the cavity (3). The branch channels (412) are two sets of spiral structures equidistant from the outer contour of the cavity (3). The outlet of the branch channels (412) is connected to the docking structure (7) and is respectively located on the left and right sides of the cavity (3).

3. A forging die with an internal cooling channel according to claim 2, characterized in that, The cross-sectional shape of the first cooling channel (41) and the second cooling channel (42) is circular or elliptical, and the inner wall of the cooling channel is provided with a micro-protrusion structure (8).

4. A forging die with an internal cooling channel according to claim 1, characterized in that, Temperature sensors are installed in the cooling medium inlet (5), cooling medium outlet (6), and cavity (3), respectively.

5. A forging die with an internal cooling channel according to claim 1, characterized in that, The cooling channel (4) is connected to the external pipeline by a quick-connect type, and the external pipeline is connected to the pump body to transport the cooling medium.

6. A forging die with an internal cooling channel according to claim 1, characterized in that, The docking structure (7) adopts a self-locking quick connector, including a female connector (71) set on the upper mold (1) and a male connector (72) set on the lower mold (2) that matches the female connector (71). The male connector (72) and the female connector (71) are positioned vertically.

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