A cooling device for stamping dies for automotive stamping parts

By designing an interlaced cooling water system and a limiting and fixing structure, the problem of inconvenient internal cooling of the mold was solved, achieving efficient internal cooling of the mold and a stable supply of cooling water, thereby improving the cooling effect and efficiency of the stamped parts.

CN224444336UActive Publication Date: 2026-07-03LAIJIN (TIANJIN) AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LAIJIN (TIANJIN) AUTO PARTS CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing automotive stamping die cooling devices can only cool the heat outside the die, making it inconvenient to cool the heat inside the die. This results in uneven cooling temperatures, affecting the deformation rate and cooling efficiency of the stamped parts.

Method used

A cooling device was designed, comprising an upper template, a lower template, a frame, a water tank, a refrigeration unit, cooling holes, a distribution pipe, and a bend seat. The device directly cools the interior of the mold by using staggered flow of cooling water. Combined with the limiting and fixing design of the frame and ear seat, the stability of the device and the cooling effect are ensured.

Benefits of technology

It achieves efficient cooling of the inside of the stamping die, reduces the deformation rate, improves cooling efficiency, and ensures a stable supply of cooling water through the observation and water replenishment system.

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Abstract

This utility model relates to the technical field of automotive stamping die cooling equipment, specifically a cooling device for automotive stamping dies, including an upper die and a lower die. The upper and lower die have frames bolted to their opposite sides for support. Multiple sets of lugs are integrally formed on the outer surfaces of the frames for connection. Vertical holes for connection are provided on the top surfaces of the lugs. When stamping automotive workpieces using the die, the cooling device bodies on both sides of the water tank inside the frame facilitate the extraction of water from the tank and its delivery into the bend seat. The water is then guided by the bend seat into the distribution pipe and then into the corresponding cooling holes inside the upper or lower die. Simultaneously, the cooling water in the multiple cooling holes flows in a staggered direction, forming a cyclical cooling system, which improves the cooling effect and allows direct cooling of the die's interior.
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Description

Technical Field

[0001] This utility model relates to the technical field of automotive stamping die cooling equipment, specifically to a cooling device for automotive stamping die. Background Technology

[0002] In automotive parts manufacturing, metal parts are stamped to form automotive components. Some metal parts become automotive components directly after stamping, while others require welding, machining, painting, or other processes before becoming automotive components. During stamping, molds and cooling devices are needed to cool them. Patent number CN202322302532.8 discloses a cooling device for automotive stamping molds. Through the independent arrangement of multiple first and second cooling pipes, cooling water is distributed to the first and second cooling pipes via a water distribution pipe. The flow path of the cooling water in the first cooling pipe is from left to right, and the flow path of the cooling water in the second cooling pipe is from right to left, achieving bidirectional synchronous cooling of the mold. This reduces the deformation rate of automotive stamping parts caused by uneven cooling temperature, shortens the circulation path, and further improves cooling efficiency. However, since the cooling pipe assembly only cools the mold by contacting it, it can only cool the heat conducted from inside the mold to the outside, and cooling the heat inside the mold is not convenient. Therefore, we propose a cooling device for automotive stamping dies. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides a cooling device for stamping dies of automotive stamping parts.

[0004] The technical solution adopted by this utility model to solve its technical problem is a cooling device for stamping die of automotive stamping parts, including an upper template and a lower template. The upper template and the lower template are respectively equipped with a frame for support by bolts on opposite sides. The outer two sides of the frame are integrally constructed with ear seats for connection, and there are multiple sets of ear seats. The top surface of the ear seat is provided with a vertical hole for connection.

[0005] A water tank is bolted to the inner side of the frame, and the main body of the refrigeration device is mounted on both sides of the outer periphery of the water tank. Cooling holes for guiding flow are opened on the inner side of the upper and lower templates, and there are multiple sets of cooling holes. Diversion pipes connected to the cooling holes are bolted to the outer side walls of the upper and lower templates, and a bend seat for guiding flow is installed between the water inlet end of the diversion pipe and the water outlet end of the refrigeration device. A vertical pipe for guiding flow is installed between the water outlet end of the diversion pipe at the bottom and the water inlet end at the top of the water tank, and there are multiple sets of vertical pipes.

[0006] By adopting the above technical solution, when stamping automotive parts using a stamping die, the main body of the cooling device on both sides of the water tank inside the frame can easily draw water from the water tank and deliver the water into the bend seat. Then, guided by the bend seat, the water enters the distribution pipe and is guided by the distribution pipe into the corresponding cooling holes inside the upper or lower die. At the same time, the cooling water in multiple sets of cooling holes flows in a staggered relative direction, thereby forming a circulating staggered cooling, which can improve the cooling effect and directly cool the inside of the stamping die.

[0007] Before installing the lower and upper templates, the frame can be easily installed on the surfaces of the upper and lower templates. The multiple sets of lugs on the surface of the frame cooperate with the vertical holes on the surface to facilitate the positioning and fixing of the frame, so that the frame can stably support the water tank during subsequent work.

[0008] Specifically, the inner bottom surface of the frame has a groove that fits and connects with the water tank.

[0009] By adopting the above technical solution, the groove can easily fit and connect with the protrusion at the bottom of the water tank, which can improve the stability of the water tank when it is installed inside the frame.

[0010] Specifically, the outer wall surface of the water tank is fitted with a glass plate for observation.

[0011] By adopting the above technical solution, the glass plate makes it convenient for staff to observe the content of cooling water in the water tank.

[0012] Specifically, the outer wall surface of the glass plate is coated with graduation lines for measurement.

[0013] By adopting the above technical solution, the scale lines allow staff to more clearly understand the content of cooling water in the water tank.

[0014] Specifically, a water supply pipe is fitted onto the outer surface of the water tank.

[0015] By adopting the above technical solution, the water supply pipe is connected to the external water supply pipe, which facilitates the replenishment of cooling water in the water tank.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The technical solution of this application, through the design of the frame, ear seats and vertical holes, allows the frame to be easily installed on the surface of the upper and lower templates before the lower template and the upper template are installed. Moreover, the multiple sets of ear seats on the surface of the frame and the vertical holes on the surface cooperate with each other, which facilitates the positioning and fixing of the frame, so that the frame can stably support the water tank during subsequent work.

[0018] 2. The technical solution of this application, through the design of water tank, bend seat, main body of refrigeration device, diversion pipe, cooling hole and vertical pipe, allows the main body of refrigeration device on both sides of the water tank inside the frame to easily draw water from the water tank and deliver it into the bend seat. Then, guided by the bend seat, the water enters the diversion pipe and is guided by the diversion pipe into the corresponding cooling hole inside the upper or lower mold plate. At the same time, the cooling water in multiple sets of cooling holes flows in a staggered relative direction, thereby forming a circulating staggered cooling, which can improve the cooling effect and directly cool down the inside of the stamping die. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an isometric view of the present invention;

[0021] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0022] Figure 3 This is a schematic cross-sectional view of the inner structure of the lower template of this utility model;

[0023] In the diagram: 1. Lower template; 2. Upper template; 3. Frame; 4. Cooling hole; 5. Diverter pipe; 6. Bend seat; 7. Water tank; 8. Main body of refrigeration unit; 9. Vertical pipe; 10. Ear seat; 11. Vertical hole; 12. Glass plate; 13. Scale line; 14. Water supply pipe; 15. Groove. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please see Figure 1-3This utility model provides a technical solution: a cooling device for stamping dies of automotive stamping parts, including an upper template 2 and a lower template 1. The upper template 2 and the lower template 1 are respectively bolted to opposite sides with a frame 3 for support. The outer two sides of the frame 3 are integrally constructed with connecting lugs 10, and there are multiple sets of lugs 10. The top surface of the lugs 10 has a vertical hole 11 for connection. A water tank 7 is bolted to the inner side of the frame 3, and a cooling device body 8 is bolted to the outer two sides of the water tank 7. Cooling holes 4 for guiding flow are opened on the inner sides of both the upper template 2 and the lower template 1, and there are multiple sets of cooling holes 4. Diverter pipes 5 communicating with the cooling holes 4 are bolted to the outer two sides of both the upper template 2 and the lower template 1. A bent pipe seat 6 for guiding flow is installed between the water inlet end of the diverter pipe 5 and the water outlet end of the cooling device body. A vertical pipe 9 for guiding flow is installed between the bottom water outlet end of the diverter pipe 5 and the top water inlet end of the water tank 7, and there are multiple sets of vertical pipes 9.

[0026] When using the stamping die to stamp automotive parts, the cooling device body 8 on both sides of the water tank 7 inside the frame 3 can easily draw water from the water tank 7 and deliver the water into the bend seat 6. Then, guided by the bend seat 6, the water enters the diversion pipe 5 and is guided by the diversion pipe 5 into the corresponding cooling holes 4 inside the upper template 2 or lower template 1. At the same time, the cooling water in the multiple sets of cooling holes 4 flows in a staggered relative direction, thus forming a circulating staggered cooling, which can improve the cooling effect and directly cool down the inside of the stamping die.

[0027] Before installing the lower template 1 and the upper template 2, the frame 3 can be easily installed on the surface of the upper template 2 and the lower template 1. The multiple sets of ear seats 10 on the surface of the frame 3 and the vertical holes 11 on its surface cooperate with each other, which facilitates the positioning and fixing of the frame 3, so that the frame 3 can stably support the water tank 7 in subsequent work.

[0028] like Figure 2 As shown, a groove 15 is provided on the inner bottom surface of the frame 3 to fit and connect with the water tank 7.

[0029] When in use, the groove 15 can easily fit and connect with the protrusion at the bottom of the water tank 7, which can improve the stability of the water tank 7 when it is installed inside the frame 3.

[0030] like Figure 1 As shown, the outer wall surface of the water tank 7 is fitted with a glass plate 12 for observation.

[0031] When in use, the glass plate 12 makes it convenient for staff to observe the content of cooling water in the water tank 7.

[0032] like Figure 1 As shown, the outer wall surface of the glass plate 12 is coated with scale lines 13 for measurement.

[0033] When in use, the scale line 13 allows staff to more clearly understand the content of cooling water in water tank 7.

[0034] like Figure 1 As shown, a water supply pipe 14 is fitted on the outer surface of the water tank 7.

[0035] During use, the water supply pipe 14 is connected to the external water supply pipe to facilitate the replenishment of cooling water to the water tank 7.

[0036] The working principle and usage process of this utility model are as follows: In use, first, install the corresponding structural components in suitable positions. When stamping automotive workpieces using a stamping die, the cooling device bodies 8 on both sides of the water tank 7 inside the frame 3 facilitate the extraction of water from the water tank 7 and the delivery of the water into the bend seat 6. Subsequently, guided by the bend seat 6, the water enters the distribution pipe 5 and is then guided by the distribution pipe 5 into the corresponding cooling holes 4 inside the upper template 2 or lower template 1. Simultaneously, the cooling water in multiple sets of cooling holes 4 flows in a staggered relative direction, thus forming a cyclical, staggered cooling system, which facilitates improved cooling efficiency. The effect is to directly cool the inside of the stamping die. Then, the cooling water in the cooling hole 4 can easily enter another group of flow pipes 5 and easily flow back into the water tank 7 from the vertical pipe 9, so as to continuously cool the upper template 2 and the lower template 1. Before installing the lower template 1 and the upper template 2, the frame 3 can be easily installed on the surface of the upper template 2 and the lower template 1. The multiple sets of ear seats 10 on the surface of the frame 3 and the vertical holes 11 on its surface cooperate with each other, so as to limit and fix the position of the frame 3, so that the frame 3 can stably support the water tank 7 during subsequent work.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automobile stamping press mold cooling device characterized by comprising: The upper template (2) and the lower template (1) are included. The upper template (2) and the lower template (1) are respectively equipped with a frame (3) for support by bolts on the opposite side. The outer two sides of the frame (3) are integrally constructed with ear seats (10) for connection. There are multiple sets of ear seats (10). The top surface of the ear seat (10) is provided with a vertical hole (11) for connection. The frame (3) is fitted with a water tank (7) by bolts on the inner side, and the main body of the refrigeration device (8) is fitted on both sides of the outer periphery of the water tank (7). The upper template (2) and the lower template (1) are both provided with cooling holes (4) for guiding the flow, and there are multiple sets of cooling holes (4). The upper template (2) and the lower template (1) are fitted with a diversion pipe (5) connected to the cooling hole (4) by bolts on both sides of the outer periphery of the upper template (2) and the lower template (1). A bend seat (6) for guiding the flow is fitted between the water inlet end of the diversion pipe (5) and the water outlet end of the main body of the refrigeration device. A vertical pipe (9) for guiding the flow is fitted between the water outlet end of the bottom side of the diversion pipe (5) and the water inlet end of the top of the water tank (7), and there are multiple sets of vertical pipes (9).

2. The cooling device for a press die for a press part of an automobile according to claim 1, wherein The inner bottom surface of the frame (3) is provided with a groove (15) that fits and connects with the water tank (7).

3. The cooling device for a press die for a press part of an automobile according to claim 1, wherein The outer wall surface of the water tank (7) is fitted with a glass plate (12) for observation.

4. The cooling device for a press die for a press part of an automobile according to claim 3, wherein The outer wall surface of the glass plate (12) is coated with scale lines (13) for measurement.

5. The cooling device for a press die for a press part of an automobile according to claim 1, wherein The water tank (7) is equipped with a water supply pipe (14) on its outer peripheral surface.