Damper hot roll forging processing die
By designing positioning components and fixing structures on the inner wall of the mold, the problem of insufficient positioning accuracy in the hot roll forging of dampers was solved, achieving high-precision product positioning and processing stability, and reducing the scrap rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENGSHUI ZHONGTIEJIAN ENG RUBBER
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-24
AI Technical Summary
Existing hot roll forging dies for dampers are difficult to maintain positioning accuracy under high temperature and high pressure conditions, resulting in substandard product size and shape accuracy and a high scrap rate.
The positioning components 1 and 2 on the inner walls of mold 1 and mold 2 work together to achieve precise horizontal and vertical positioning through the engagement of positioning blocks and positioning pins. Combined with the engagement of fixing pins and fixing grooves, springs provide elastic restoring force to ensure a stable mold connection.
It effectively prevents the damper from shifting during hot roll forging, ensuring that the product accuracy meets the requirements, significantly improving the product qualification rate, and preventing the mold from loosening and separating under high temperature and high pressure, thus ensuring the stability of the processing.
Smart Images

Figure CN224543018U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of damper processing technology, and in particular to a damper hot roll forging die. Background Technology
[0002] In the field of mechanical engineering, a damper is a device that utilizes damping properties to reduce mechanical vibration and dissipate kinetic energy. It is widely used in aerospace, automotive, and seismic engineering applications. In aerospace, dampers are used in aircraft landing gear and control systems to ensure flight stability. In the automotive industry, they are a key component of suspension systems, improving vehicle ride comfort and handling performance. In seismic engineering, dampers effectively absorb seismic energy, reduce building sway, and enhance structural safety. The hot roll forging die for dampers, as the core tool in damper production, uses high temperature and pressure to plastically deform metal materials within the die, thus forming damper components that meet the requirements. This process plays a decisive role in the production quality and efficiency of dampers.
[0003] In the field of hot roll forging of dampers, the positioning structure of existing dies faces challenges in maintaining positioning accuracy under high temperature and high pressure conditions. Specifically, during hot roll forging, the damper workpiece will experience positional displacement due to the combined effects of high temperature thermal expansion, high pressure load, and material flow. This displacement makes it difficult for the dimensional and shape accuracy of the processed product to consistently meet the design tolerance range, objectively resulting in a decrease in product qualification rate. To address this, a hot roll forging die for dampers is proposed. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a damper hot roll forging die, which aims to improve the problem that the existing die positioning structure design is not reasonable enough, making it difficult to accurately position the damper. During the hot roll forging process, the damper is prone to displacement due to high temperature and high pressure, resulting in substandard product accuracy and a high scrap rate.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a damper hot roll forging die, comprising a die one and a die two, wherein a positioning component one is provided on the inner wall of the die one, a positioning component two is provided on the inner wall of the die two, a fixing plate is fixedly connected to the top of the die one, a fixing pin is fixedly connected to the top of the fixing plate, and a fixing component is provided on the die two. The fixing component includes a pull rod, the outer wall of which is slidably connected to the inside of the mold, a limit plate is fixedly connected to the outer wall of the pull rod, and a spring is sleeved on the outer wall of the pull rod.
[0006] As a further description of the above technical solution: The positioning component includes two positioning blocks, which are fixedly connected to the inner wall of the mold, and a positioning hole is provided on the top of the positioning block.
[0007] As a further description of the above technical solution: The second positioning component includes two second positioning blocks, which are fixedly connected to the inner wall of the second mold, and two positioning pins are fixedly connected to the top of the second positioning block.
[0008] As a further description of the above technical solution: The top of the mold has a fixing groove, and the fixing pin engages with the fixing groove.
[0009] As a further description of the above technical solution: The fixing pin has a fixing hole on its surface, and the pull rod passes through the mold and engages with the fixing hole.
[0010] As a further description of the above technical solution: The positioning hole and the positioning pin engage.
[0011] As a further description of the above technical solution: One end of the spring is fixedly connected to the inner wall of the mold, and the other end of the spring is fixedly connected to the limiting plate.
[0012] This utility model has the following beneficial effects: 1. In this utility model, the positioning component one on the inner wall of mold one and the positioning component two on the inner wall of mold two cooperate with each other. Positioning block one and positioning block two work together to position the damper in the horizontal direction through the engagement of the positioning pin and the positioning hole; at the same time, the engagement of the fixing pin and the fixing groove achieves precise positioning in the vertical direction. This effectively prevents the damper from shifting during hot roll forging, ensuring that the processed damper meets high precision requirements and significantly improving the product qualification rate.
[0013] 2. In this utility model, the tie rod in the fixing assembly engages with the fixing hole on the fixing pin, and combined with the elastic restoring force provided by the spring, the first mold and the second mold are tightly connected to form a stable overall structure. Under the complex working conditions of high temperature and high pressure in hot roll forging, this fixing structure can effectively prevent loosening or separation between mold components, ensuring the stability of the processing. Attached Figure Description
[0014] Figure 1 This is a perspective view of a damper hot roll forging die proposed in this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3for Figure 1 Enlarged view at point B in the middle; Figure 4 This is a two-section view of a damper hot roll forging die proposed in this utility model.
[0015] Legend: 1. Mold 1; 2. Mold 2; 3. Positioning block 1; 4. Positioning hole; 5. Positioning block 2; 6. Positioning pin; 7. Fixing plate; 8. Fixing pin; 9. Fixing hole; 10. Fixing groove; 11. Pull rod; 12. Limiting plate; 13. Spring. Detailed Implementation
[0016] 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.
[0017] Reference Figures 1-3 This utility model provides an embodiment of a damper hot roll forging die, including a die 1 and a die 2. The inner wall of the die 1 is provided with a positioning component 1, and the inner wall of the die 2 is provided with a positioning component 2. Through the cooperation of the positioning component 1 and the positioning component 2, the die 1 and the die 2 can be aligned before the damper hot roll forging. The top of the die 1 is fixedly connected to a fixing plate 7, and the top of the fixing plate 7 is fixedly connected to a fixing pin 8. The fixing plate 7 and the fixing pin 8 enhance the connection strength and stability of the top of the die 1, and provide reliable support for the subsequent assembly and positioning with the die 2. The die 2 is provided with a fixing component, which can further lock the positions of the die 1 and the die 2 after they are combined, preventing relative displacement of the die during the hot roll forging process. Reference Figure 4 The fixing component includes a pull rod 11, the outer wall of which is slidably connected to the inside of the mold 2. The pull rod 11 can move flexibly within the mold 2, facilitating the assembly and disassembly of the mold by the operator. A limit plate 12 is fixedly connected to the outer wall of the pull rod 11, which can limit the range of movement of the pull rod 11 and prevent it from deviating from the predetermined track during sliding. A spring 13 is sleeved on the outer wall of the pull rod 11, which can provide elastic restoring force to the pull rod 11. After the pull rod 11 completes the fixing action, the spring 13 can push it to maintain a stable fixed state.
[0018] Reference Figure 1The positioning component one includes two positioning blocks 3, which are fixedly connected to the inner wall of the mold 1. The two positioning blocks 3 are symmetrically arranged and can position the damper from both sides, providing double positioning protection. Compared with a single positioning block, it is more stable. The top of the positioning block 3 is provided with a positioning hole 4, which provides an interface for positioning with the components in the positioning component two, making it easy to achieve precise docking between the mold 1 and the mold 2.
[0019] Reference Figure 1 The second positioning component includes two positioning blocks 2 5, which are fixedly connected to the inner wall of the second mold 2. The two positioning blocks 2 5 correspond to the first positioning block 3 and together form an all-round positioning structure for the damper. Two positioning pins 6 are fixedly connected to the top of the second positioning block 2 5. The positioning pins 6 can be inserted into the positioning holes 4 on the top of the first positioning block 3. Through this plug-in snap-fit connection, the precise positioning of the first mold 1 and the second mold 2 can be achieved.
[0020] Reference Figure 2 and Figure 3 The top of mold 2 has a fixing groove 10, and the fixing pin 8 engages with the fixing groove 10. The engaging design of the fixing pin 8 and the fixing groove 10 enables precise positioning and rapid assembly of mold 1 and mold 2 in the vertical direction. This structure not only facilitates the installation of the mold, but also effectively prevents the vertical misalignment of mold 1 and mold 2 during the processing, thereby improving the overall stability of the mold.
[0021] Reference Figure 1 and Figure 4 The fixing pin 8 has a fixing hole 9 on its surface. The pull rod 11 passes through the mold 2 and engages with the fixing hole 9. After the pull rod 11 engages with the fixing hole 9, it can firmly connect the mold 1 and the mold 2 together, further enhancing the connection strength of the mold during the hot roll forging process and ensuring that the mold will not loosen or separate when subjected to high temperature and high pressure.
[0022] Reference Figure 2 and Figure 3 The engagement between the positioning hole 4 and the positioning pin 6 is the core structure for achieving precise positioning between mold 1 and mold 2. Through this engagement method, the damper can be tightly fixed inside the mold, effectively avoiding processing defects caused by the position deviation of the damper and improving the product qualification rate.
[0023] Reference Figure 4 One end of spring 13 is fixedly connected to the inner wall of mold 2, and the other end of spring 13 is fixedly connected to the limiting plate 12. The fixed connection at both ends of spring 13 allows it to generate elastic deformation when the pull rod 11 moves, thereby providing elastic force to the pull rod 11. During mold assembly, spring 13 can push the pull rod 11 to automatically engage with the fixing hole 9 on the fixing pin 8.
[0024] Working principle: When the damper needs to be processed, the damper is first placed in mold 1, and the positioning block 3 performs initial positioning. Then, mold 2 is placed on top of mold 1, so that the positioning pin 6 on the top of positioning block 2 is inserted into the positioning hole 4 on the top of positioning block 3, completing the precise horizontal positioning of mold 1 and mold 2; at the same time, the fixing pin 8 on the top fixing plate 7 of mold 1 is embedded into the fixing groove 10 on the top of mold 2, achieving vertical positioning.
[0025] Push the pull rod 11 to make it slide inside the mold 2. During this process, the spring 13 on the outer wall of the pull rod 11 is compressed and undergoes elastic deformation. The limiting plate 12 moves with the pull rod 11 and restricts its range of movement. When the pull rod 11 is engaged with the fixing hole 9, the elastic restoring force of the spring 13 pushes the pull rod 11 to maintain a stable fixed state, thereby firmly connecting the mold 1 and the mold 2.
[0026] Subsequently, the mold is sent into the hot roll forging equipment to perform hot roll forging on the damper inside the mold. After the processing is completed, the pull rod 11 is pulled to overcome the elastic force of the spring 13 and disengage from the fixing hole 9 of the fixing pin 8. Then, the mold 2 is removed from the mold 1. At this time, the positioning pin 6 is separated from the positioning hole 4, and the fixing pin 8 is separated from the fixing groove 10. The processed damper can then be taken out.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A damper hot roll forging die, comprising die one (1) and die two (2), characterized in that: The inner wall of the mold one (1) is provided with a positioning component one, the inner wall of the mold two (2) is provided with a positioning component two, the top of the mold one (1) is fixedly connected with a fixing plate (7), the top of the fixing plate (7) is fixedly connected with a fixing pin (8), and the mold two (2) is provided with a fixing component; The fixing component includes a pull rod (11), the outer wall of which is slidably connected to the inside of the mold (2), a limit plate (12) is fixedly connected to the outer wall of the pull rod (11), and a spring (13) is sleeved on the outer wall of the pull rod (11).
2. The damper hot roll forging die according to claim 1, characterized in that: The positioning component includes two positioning blocks (3), which are fixedly connected to the inner wall of the mold (1), and the top of the positioning block (3) is provided with a positioning hole (4).
3. The damper hot roll forging die according to claim 2, characterized in that: The second positioning component includes two second positioning blocks (5), which are fixedly connected to the inner wall of the second mold (2), and two positioning pins (6) are fixedly connected to the top of the second positioning block (5).
4. The damper hot roll forging die according to claim 3, characterized in that: The top of the mold (2) is provided with a fixing groove (10), and the fixing pin (8) and the fixing groove (10) are engaged.
5. The damper hot roll forging die according to claim 3, characterized in that: The fixing pin (8) has a fixing hole (9) on its surface, and the pull rod (11) passes through the mold (2) and engages with the fixing hole (9).
6. The damper hot roll forging die according to claim 3, characterized in that: The positioning hole (4) and the positioning pin (6) engage with each other.
7. The damper hot roll forging die according to claim 1, characterized in that: One end of the spring (13) is fixedly connected to the inner wall of the mold (2), and the other end of the spring (13) is fixedly connected to the limiting plate (12).