Hot forging punch internal circulation cooling assembly

Abstract

The utility model relates to punch technical field, and disclose a kind of hot forging punch internal circulation cooling assembly, including punch body, the inside of punch body is equipped with placement cavity and reinforcing area, the inside of placement cavity is provided with circulation cooling pipe, the gap formed between placement cavity and circulation cooling pipe is filled with heat transfer foam inside.The heat transfer foam of this hot forging punch internal circulation cooling assembly is cooperated with circulation cooling pipe, so that the heat absorption of cooling medium can be increased when flowing in circulation cooling pipe, and the time of staying inside is increased, and the heat transfer efficiency is strengthened by the porous structure of copper metal foam, so that the purpose of efficient cooling of hot forging punch is achieved, and the problem of flow dead zone in traditional U-shaped channel is avoided, which helps to improve the cooling efficiency of punch.

Description

Technical Field

[0001] This utility model relates to the field of punch technology, and in particular to an internal circulation cooling assembly for hot forging punches. Background Technology

[0002] Hot forging is an important plastic forming process in the machinery manufacturing industry. It involves applying pressure to a metal billet at high temperature, causing it to undergo plastic deformation within a mold cavity, thereby obtaining a forging with the desired shape and properties. As a key component in hot forging dies, the punch is in direct contact with the high-temperature billet and bears extremely high thermal and mechanical loads. During continuous production, the working surface temperature of the punch will rise sharply, leading to problems such as thermal fatigue, decreased hardness, accelerated wear, and even deformation and cracking. This seriously affects the service life of the punch and the forming quality of the forging, thus requiring the use of cooling components.

[0003] A forging punch disclosed in announcement number CN213052579U can simultaneously perform external air cooling and internal water cooling on the punch. The exhaust area of ​​the air outlet completely covers the side wall of the punch, and the cooling air is sprayed from the air outlet to the outer surface of the punch. The cooling water flow channel is U-shaped and runs through the inside of the punch. During the stamping process, the air cooling and water cooling parts always remain in working condition, with good uniform cooling effect and no damage to the punch.

[0004] However, this forging punch has the following disadvantages: the simple U-shaped channel often has a flow dead zone, and the cooling medium cannot flow fully through the heat load area that needs the most heat dissipation, which is not conducive to improving cooling efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide an internal circulation cooling assembly for hot forging punches, thereby solving the problem mentioned in the background art of inconvenience in improving cooling efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a hot forging punch internal circulation cooling assembly, including a punch body, wherein the punch body has a placement cavity and a reinforcing zone inside, a circulation cooling pipe is provided inside the placement cavity, the gap formed between the placement cavity and the circulation cooling pipe is filled with heat transfer foam, and a number of reinforcing ribs are provided inside the reinforcing zone.

[0009] As a further embodiment of this invention, the heat transfer foam is made of copper metal, and its porous structure can closely fit the outer wall of the circulating cooling pipe and the placement cavity of the punch body.

[0010] As a further embodiment of this invention, the circulating cooling pipe is made of copper.

[0011] As a further embodiment of this utility model, one end of the circulating cooling pipe is fixedly connected to a cooling medium inlet installation pipe, and the other end of the circulating cooling pipe is fixedly connected to a cooling medium outlet installation pipe.

[0012] As a further embodiment of this utility model, both the cooling medium inlet installation pipe and the cooling medium outlet installation pipe extend to the outside of the punch body, and the pipe openings are provided with threaded interfaces, which can be adapted to cooling medium conveying pipes of different specifications.

[0013] As a further embodiment of this utility model, the circulating cooling pipe is bent into a continuous "U" shape and distributed in a ring inside the placement cavity, with one side of the "U" shaped path attached to the inside of the working end of the punch body where the heat load is high.

[0014] As a further embodiment of this utility model, the reinforcing ribs are evenly distributed in a ring shape inside the reinforcing area, and the reinforcing ribs are fixedly connected to the outer wall of the placement cavity of the punch body.

[0015] As a further embodiment of this utility model, the outer wall of the working end of the punch body is coated with a high-temperature resistant coating, and the coating material used for the high-temperature resistant coating is high-temperature resistant ceramic.

[0016] (III) Beneficial Effects

[0017] This utility model provides an internal circulation cooling component for hot forging punches, which has the following beneficial effects:

[0018] 1. This hot forging punch internal circulation cooling assembly, through the combined arrangement of circulation cooling pipes and heat transfer foam, allows the cooling medium to absorb more heat and spend more time inside the circulation cooling pipes as it flows. Simultaneously, the heat transfer foam, made of copper metal foam, with its porous structure, enables rapid contact between heat and the circulation cooling pipes, enhancing heat transfer efficiency. This achieves efficient cooling of the hot forging punch, avoiding the flow dead zone problem present in traditional U-shaped channels and contributing to improved cooling efficiency of the punch.

[0019] 2. The internal circulation cooling assembly of this hot forging punch, through the setting of reinforcing ribs and high-temperature resistant coating, the reinforcing ribs can withstand greater mechanical loads, enhance the structural strength and high-temperature resistance of the punch body, extend the service life of the hot forging punch, and improve the forming quality of the forging. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2This is a schematic diagram of the circulating cooling pipe and heat transfer foam structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the reinforcing rib structure of this utility model;

[0023] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0024] In the diagram: 1. Punch body; 2. Placement cavity; 3. Reinforced area; 4. Circulating cooling pipe; 5. Heat transfer foam; 6. Reinforcing rib; 7. Cooling medium inlet installation pipe; 8. Cooling medium outlet installation pipe; 9. High-temperature resistant coating. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1 to 4 This utility model provides a technical solution: an internal circulation cooling assembly for a hot forging punch, including a punch body 1. The punch body 1 has a placement cavity 2 and a reinforcing zone 3 inside. A circulation cooling pipe 4 is installed inside the placement cavity 2. The gap formed between the placement cavity 2 and the circulation cooling pipe 4 is filled with heat transfer foam 5. Through the cooperation of the circulation cooling pipe 4 and the heat transfer foam 5, when the cooling medium flows in the circulation cooling pipe 4, the bending shape of the circulation cooling pipe 4 can increase the heat absorption of the cooling medium and the residence time inside. At the same time, the heat transfer foam 5 is made of copper metal foam, and its porous structure can allow heat to quickly contact the circulation cooling pipe 4, enhancing the heat transfer efficiency, thereby achieving the purpose of efficient cooling of the hot forging punch and avoiding the flow dead zone problem of traditional U-shaped channels. This helps to improve the cooling efficiency of the punch. The reinforcing zone 3 has several reinforcing ribs 6 inside. Through the setting of the reinforcing ribs 6 and the high-temperature resistant coating 9, the reinforcing ribs 6 can withstand a large mechanical load, enhance the structural strength and high-temperature resistance of the punch body 1, extend the service life of the hot forging punch, and improve the forming quality of the forging.

[0027] The heat transfer foam 5 is made of copper metal. Its porous structure can fit tightly against the outer wall of the circulating cooling pipe 4 and the placement cavity 2 of the punch body 1. The heat transfer foam 5 enhances the heat conduction efficiency, fills the gaps, and avoids thermal resistance.

[0028] The circulating cooling pipe 4 is made of copper, which improves thermal conductivity and accelerates heat exchange.

[0029] One end of the circulating cooling pipe 4 is fixedly connected to the cooling medium inlet installation pipe 7, and the other end of the circulating cooling pipe 4 is fixedly connected to the cooling medium outlet installation pipe 8. Both the cooling medium inlet installation pipe 7 and the cooling medium outlet installation pipe 8 extend to the outside of the punch body 1, and the pipe openings are provided with threaded interfaces, which can be adapted to cooling medium conveying pipes of different specifications. The setting of the cooling medium inlet installation pipe 7 and the cooling medium outlet installation pipe 8 facilitates the input and discharge of cooling medium and forms a closed loop.

[0030] The circulating cooling pipe 4 is bent into a continuous "U" shape and distributed in a ring inside the placement cavity 2. One side of the "U" shaped path is attached to the working end of the punch body 1 where the heat load is high. The continuous U-shaped arrangement increases the cooling area, concentrates the cooling of high-temperature areas, and avoids cooling dead corners.

[0031] The reinforcing ribs 6 are evenly distributed in a ring inside the reinforcing area 3. The reinforcing ribs 6 are fixedly connected to the outer wall of the placement cavity 2 of the punch body 1. The reinforcing ribs 6 enhance the structural strength of the punch and prevent deformation due to thermal stress.

[0032] The outer wall of the working end of the punch body 1 is coated with a high-temperature resistant coating 9. The coating material used for the high-temperature resistant coating 9 is high-temperature resistant ceramic. The high-temperature resistant coating 9 serves to isolate high temperature, resist oxidation, and extend the service life of the punch.

[0033] In this invention, the working steps of the device are as follows:

[0034] First step: Inject the cooling medium into the circulating cooling pipe 4 through the cooling medium inlet installation pipe 7;

[0035] The second step: The cooling medium circulates in the circulating cooling pipe 4, absorbs the heat at the working end of the punch body 1, and enhances the heat exchange efficiency through the heat transfer foam 5, thereby reducing the temperature of the punch body 1.

[0036] The third step: The heated cooling medium is discharged through the cooling medium outlet pipe 8, completing a cooling cycle. Simultaneously, the high-temperature resistant coating 9 and the reinforcing ribs 6 provide insulation and structural support, respectively, ensuring the stable operation of the punch under high temperature and high pressure conditions. It should be noted that the equipment structure and accompanying drawings of this utility model mainly describe the principle of the utility model. The technical details of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art, understanding the principle of the above utility model, can clearly understand the specifics of its power mechanism, power supply system, and control system. The control method described in the application document is automatic control via a controller, and the controller's control circuit can be implemented through simple programming by those skilled in the art.

[0037] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot forging punch internal circulation cooling assembly, comprising a punch body (1), characterized in that: The punch body (1) has a placement cavity (2) and a reinforcing zone (3) inside. The placement cavity (2) is provided with a circulating cooling pipe (4). The gap between the placement cavity (2) and the circulating cooling pipe (4) is filled with heat transfer foam (5). The reinforcing zone (3) is provided with several reinforcing ribs (6).

2. The internal circulation cooling assembly for a hot forging punch according to claim 1, characterized in that: The heat transfer foam (5) is made of copper metal, and its porous structure can fit tightly against the outer wall of the circulating cooling pipe (4) and the placement cavity (2) of the punch body (1).

3. The internal circulation cooling assembly for a hot forging punch according to claim 1, characterized in that: The circulating cooling pipe (4) is made of copper.

4. The internal circulation cooling assembly for a hot forging punch according to claim 1, characterized in that: One end of the circulating cooling pipe (4) is fixedly connected to a cooling medium inlet installation pipe (7), and the other end of the circulating cooling pipe (4) is fixedly connected to a cooling medium outlet installation pipe (8).

5. The internal circulation cooling assembly for a hot forging punch according to claim 4, characterized in that: The cooling medium inlet installation pipe (7) and the cooling medium outlet installation pipe (8) both extend to the outside of the punch body (1), and the pipe openings are provided with threaded interfaces, which can be adapted to cooling medium conveying pipes of different specifications.

6. The internal circulation cooling assembly for a hot forging punch according to claim 1, characterized in that: The circulating cooling pipe (4) is bent into a continuous "U" shape and is distributed in a ring inside the placement cavity (2). One side of the "U" shaped path is attached to the working end of the punch body (1) with high heat load.

7. The internal circulation cooling assembly for a hot forging punch according to claim 1, characterized in that: The reinforcing ribs (6) are evenly distributed in a ring inside the reinforcing area (3), and the reinforcing ribs (6) are fixedly connected to the outer wall of the placement cavity (2) of the punch body (1).

8. The internal circulation cooling assembly for a hot forging punch according to claim 1, characterized in that: The outer wall of the working end of the punch body (1) is coated with a high-temperature resistant coating (9), and the coating material used for the high-temperature resistant coating (9) is high-temperature resistant ceramic.

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