Bending die for hydrogen production system
By using an alternating arrangement of elastic support components and nitrogen springs on a bending machine, the problem of existing equipment being unable to meet the processing requirements of large hydrogen system parts has been solved, achieving stable bending and high-precision forming of the parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN ELECTRICAL ALLOY
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-28
AI Technical Summary
Existing bending machines are unable to meet the requirements of high pressure and long stroke when processing large hydrogen system parts, which leads to structural instability of large parts during bending, affecting height consistency and flatness.
The system employs elastic support components, including nitrogen springs and pressure plates, which are staggered to evenly distribute bending stress, ensuring the stability and precision of the workpiece.
It significantly improves the uniformity and flatness of large-sized parts, avoids structural instability caused by local deformation, and meets the requirements of high pressure and long stroke in hydrogen systems.
Smart Images
Figure CN224168433U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bending technology, specifically relating to a bending die for a hydrogen production system. Background Technology
[0002] In the manufacturing sector, a large number of metal parts need to be processed on bending machines using specialized bending dies. However, existing bending machines generally suffer from simple structures and small pressure and stroke, making them more suitable for producing small parts with lower pressure requirements. For large parts required in hydrogen systems, the pressure and stroke requirements are higher, and existing equipment often cannot meet the needs. In particular, during the bending process, stress cannot be effectively dispersed, which can easily lead to structural instability of large parts due to local deformation, thus seriously affecting the height consistency and flatness of the bent parts. Utility Model Content
[0003] In view of this, the present invention provides a bending die for a hydrogen production system, which can uniformly distribute bending stress through an elastic support component, avoid structural instability of large parts due to local deformation, and significantly improve the height consistency and flatness of the bent parts.
[0004] To solve the above-mentioned technical problems, this utility model provides a bending die for a hydrogen production system, including an elastic support component disposed on an upper die assembly or a lower die assembly. A die head is provided on one side of the lower end of the upper die assembly and one side of the upper end of the lower die assembly. The two die heads are staggered vertically. The elastic support component is located on the outside of the die head. The elastic support component includes an elastic element disposed on the lower end of the upper die assembly or the upper end of the lower die assembly. A support element is provided on the end of the elastic element near the material. The support element is located on the outside of the die head, which can evenly distribute bending stress, avoid structural instability of large-sized parts due to local deformation, and significantly improve the height consistency and flatness of the bent parts.
[0005] The elastic element includes several nitrogen springs located at the lower end of the upper die assembly or the upper end of the lower die assembly. Each nitrogen spring has a pressure plate at the end closest to the material, which ensures the bending accuracy of the workpiece.
[0006] The pressure plates are located on the outside of the die head, which enhances the support effect.
[0007] Several nitrogen springs are located on the lower side of the upper mold assembly and the upper side of the lower mold assembly. Several nitrogen springs located on the upper mold assembly and the lower mold assembly are located on the outer side of the mold head. The two pressure plates are staggered with the vertical plane where the bend of the two mold heads is located as the dividing plane, so that both ends of the workpiece can be supported simultaneously.
[0008] The upper mold assembly includes an upper cover plate and an upper mold base located at its lower end. The lower end of the upper mold base is provided with an upper clamping plate, and an upper template is provided on one side of the lower end of the upper clamping plate. A set of nitrogen springs is located on the side of the lower end of the upper mold base away from the upper template. The mold head on the upper cover plate is the upper template, which provides an installation location.
[0009] The lower mold assembly includes a lower support plate and a lower mold base located on its upper end. A lower pad is provided on the upper end of the lower mold base. A lower mold plate is located on the side of the upper end of the lower pad away from the upper mold plate. Another set of nitrogen springs is located on the side of the upper end of the lower mold base away from the lower mold plate. The mold head on the lower pad is the lower mold plate, which provides a support location.
[0010] Both the upper and lower templates have forming plates at their inner ends, which serve to bend the template.
[0011] Multiple positioning blocks are provided on the upper outer side of the pressure plate, which are used to position the workpiece.
[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0013] 1. When the upper and lower die assemblies bend the workpiece, the support components on the upper and lower die assemblies support the workpiece, while the elastic components provide elastic preload to ensure the stability of the workpiece during bending. This can evenly distribute bending stress, avoid structural instability of large parts due to local deformation, and significantly improve the height consistency and flatness of the bent parts.
[0014] 2. The workpiece is placed between the upper and lower templates using the positioning block for positioning. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of a bending die for a hydrogen production system according to this utility model.
[0016] Explanation of reference numerals in the attached drawings: 100, upper cover plate; 101, upper mold base; 102, upper clamping plate; 103, upper template; 104, lower support plate; 105, lower mold base; 106, lower pad plate; 107, lower template; 200, forming plate; 300, nitrogen spring; 301, pressure plate; 400, positioning block. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0018] This embodiment provides a bending die for a hydrogen production system, such as... Figure 1 As shown: An elastic support component is provided on either an upper or lower die assembly. The upper die assembly is connected to the drive end of an external hydraulic press. The elastic support component supports the workpiece. A die head is provided on one side of the lower end of the upper die assembly and one side of the upper end of the lower die assembly. The die heads are used for bending the workpiece. The two die heads are staggered vertically. The elastic support component is located outside the die head. The elastic support component includes an elastic element that provides elastic force. The elastic element is located at the lower end of the upper die assembly or the upper end of the lower die assembly. A support element is provided at the end of the elastic element closest to the material. The support element contacts the workpiece to ensure its positioning. The support element is located outside the die head.
[0019] When the upper and lower die assemblies bend the workpiece, the support components on the upper or lower die assemblies support the workpiece, while the elastic components provide elastic preload to ensure the stability of the workpiece during bending. This can evenly distribute bending stress, avoid structural instability of large parts due to local deformation, and significantly improve the height consistency and flatness of the bent parts.
[0020] like Figure 1 As shown, the elastic element includes a plurality of nitrogen springs 300 disposed at the lower end of the upper mold assembly or the upper end of the lower mold assembly. The plurality of nitrogen springs 300 are evenly distributed along the axis of the lower end of the upper mold assembly or the lower mold assembly. A pressure plate 301 is provided at one end of the plurality of nitrogen springs 300 near the material. The pressure plate 301 is rectangular.
[0021] The nitrogen spring 300 provides elastic force, while the pressure plate 301 presses the workpiece so that its ground surface is completely in contact with the workpiece, thereby supporting and clamping the workpiece.
[0022] like Figure 1 As shown, the pressure plates 301 are located on the outside of the die head to ensure the stability of the workpiece support.
[0023] like Figure 1 As shown, several nitrogen springs 300 are respectively located on the lower end side of the upper mold assembly and the upper end side of the lower mold assembly. Elastic support components are provided on the lower end side of the upper mold assembly and the upper end side of the lower mold assembly. Several nitrogen springs 300 located on the upper mold assembly and the lower mold assembly are respectively located on the outside of the mold head. The two pressure plates 301 are staggered vertically with the vertical plane where the bend of the two mold heads is located as the dividing plane.
[0024] Two sets of staggered pressure plates 301 can simultaneously position both ends of the workpiece, ensuring the bending accuracy of the workpiece.
[0025] like Figure 1 As shown, the upper mold assembly includes an upper cover plate 100 and an upper mold base 101 disposed at its lower end. The upper cover plate 100 and the upper mold base 101 are fastened together by a locating pin thread. The lower end of the upper mold base 101 is provided with an upper clamping plate 102. The upper template 103 is fastened together with the upper clamping plate 102 by an inner guide post thread. The upper template 103 is provided on one side of the lower end of the upper clamping plate 102. A set of nitrogen springs 300 are located on the side of the lower end of the upper mold base 101 away from the upper template 103. The mold head on the upper cover plate 100 is the upper template 103.
[0026] like Figure 1 As shown, the lower mold assembly includes a lower support plate 104 and a lower mold base 105 disposed on its upper end. The lower support plate 106 and the lower mold base 105 are fastened together by a locating pin thread. The upper end of the lower mold base 105 is provided with a lower pad 106. The lower mold base 105 and the lower pad 104 are fastened together by a locating pin thread. The upper end of the lower pad 106 is provided with a lower mold plate 107 on the side away from the upper mold plate 103. Another set of nitrogen springs 300 is located on the upper end of the lower mold base 105 on the side away from the lower mold plate 107. The mold head on the lower pad 106 is the lower mold plate 107.
[0027] like Figure 1 As shown, both the upper template 103 and the lower template 107 are provided with forming plates 200 at their respective inner ends. The inner ends of the relative inner sides of the two forming plates 200 are inclined, and the forming plates 200 are threadedly fastened to the corresponding upper template 103 and lower template 107.
[0028] Two forming plates 200 work together to achieve the bending operation of the workpiece.
[0029] like Figure 1 As shown, the upper outer side of the pressure plate 301 is provided with a plurality of positioning blocks 400. The positioning blocks 400 are respectively placed in a plurality of positioning grooves provided on the upper outer side of the pressure plate 301. The positioning blocks 400 are used to position the workpiece.
[0030] The working principle of the bending die for a hydrogen production system provided by this utility model is as follows: The workpiece is placed between the upper template 103 and the lower template 107 by the positioning block 400. Then, the upper cover plate 100, upper die base 101, upper clamping plate 102, upper template 103, and the nitrogen spring 300 and pressure plate 301 on them are driven to move down synchronously by an external hydraulic press. Under the action of the nitrogen spring 300, the pressure plate 301 presses the workpiece, while another set of nitrogen springs 300 and pressure plate 301 simultaneously press the other end of the workpiece, thereby applying elastic pressure to the workpiece to ensure that the material is stably attached to the die surface during the bending process and to avoid deformation or springback caused by local stress concentration. When the forming plate 2 on the upper template 103 and the lower template 107 are bent, the workpiece is bent down. When the upper template 103 and lower template 107 come into contact with the workpiece, they begin to bend and form. Once the upper template 103 and lower template 107 reach their closed height, the bending and forming process is complete. Subsequently, the upper template 103 and its auxiliary mechanisms move to the upper dead point, and the pressure plate 301 synchronously returns to its initial state point under the influence of the elastic force of the nitrogen spring 300. At this point, the product can be removed from the mold. Through the staggered arrangement of the nitrogen spring 300 and the pressure plate 301 in the elastic support assembly, the bending stress can be evenly distributed, avoiding structural instability caused by local deformation of large-sized parts. This allows it to adapt to the processing requirements of larger-sized workpieces and can support and clamp the workpiece during bending, thereby significantly improving the height consistency and flatness of the bent parts.
[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A bending die for a hydrogen production system, characterized in that: The device includes an elastic support component mounted on an upper or lower mold assembly. A mold head is provided on one side of the lower end of the upper mold assembly and one side of the upper end of the lower mold assembly. The two mold heads are staggered vertically. The elastic support component is located on the outside of the mold head. The elastic support component includes an elastic element, which is located at the lower end of the upper mold assembly or the upper end of the lower mold assembly. A support element is provided at the end of the elastic element closest to the material, and the support element is located on the outside of the mold head.
2. The bending die for a hydrogen production system as described in claim 1, characterized in that: The elastic element includes a plurality of nitrogen springs (300) disposed at the lower end of the upper mold assembly or the upper end of the lower mold assembly, and a pressure plate (301) is provided at the end of the plurality of nitrogen springs (300) near the material.
3. A bending die for a hydrogen production system as described in claim 2, characterized in that: The pressure plates (301) are located on the outside of the die head.
4. The bending die for a hydrogen production system as described in any one of claims 1-3, characterized in that: Several nitrogen springs (300) are respectively located on the lower end side of the upper mold assembly and the upper end side of the lower mold assembly. Several nitrogen springs (300) located on the upper mold assembly and the lower mold assembly are respectively located on the outside of the mold head. The two pressure plates (301) are staggered vertically with the vertical plane where the bend of the two mold heads is located as the dividing plane.
5. A bending die for a hydrogen production system as described in claim 2, characterized in that: The upper mold assembly includes an upper cover plate (100) and an upper mold base (101) disposed at its lower end. The lower end of the upper mold base (101) is provided with an upper clamping plate (102). An upper template (103) is provided on one side of the lower end of the upper clamping plate (102). A set of nitrogen springs (300) is located on the side of the lower end of the upper mold base (101) away from the upper template (103). The mold head on the upper cover plate (100) is the upper template (103).
6. A bending die for a hydrogen production system as described in claim 4, characterized in that: The lower mold assembly includes a lower support plate (104) and a lower mold base (105) disposed on its upper end. The upper end of the lower mold base (105) is provided with a lower pad plate (106). The lower mold base (106) is provided with a lower mold plate (107) on the side of its upper end away from the upper mold plate (103). Another set of nitrogen springs (300) is located on the side of the upper end of the lower mold base (105) away from the lower mold plate (107). The mold head on the lower pad plate (106) is the lower mold plate (107).
7. A bending die for a hydrogen production system as described in claim 5, characterized in that: The upper template (103) and the lower template (107) are each provided with a forming plate (200) at their respective inner ends.
8. A bending die for a hydrogen production system as described in claim 2, characterized in that: The upper outer side of the pressure plate (301) is provided with multiple positioning blocks (400).