Flexible shaping tool for curved-surface product

Abstract

The utility model relates to the technical field of shaping tools, in particular to a flexible shaping tool for curved-surface products. According to the technical scheme, the die comprises four guide rods used for supporting and guiding, the lower ends of the guide rods are fixedly sleeved with a lower die assembly, and the upper ends of the guide rods are movably sleeved with an upper die assembly; the first spring is arranged on the outer wall of the guide rod in a sleeving mode, the lower end of the first spring is fixedly connected with the lower die assembly, and the upper end of the first spring is fixedly connected with the upper die assembly. The curved-surface product shaping device can be adaptively adjusted according to the actual shape of a product, the problem that the shaping effect is poor due to rigid extrusion is solved, the shaping accuracy of curved-surface products is greatly improved, deformation flaws caused by excessive or uneven stress of the products are effectively reduced, the shaping effect is remarkably improved, and the production efficiency is improved. And the requirements of actual production on high-precision products are met.

Description

Technical Field

[0001] This utility model relates to the field of shaping tooling technology, and in particular to a flexible shaping tooling for curved surface products. Background Technology

[0002] Thermoplastics, with their unique properties, have found widespread application in numerous fields. They exhibit plasticity at certain temperatures, solidify upon cooling, and this process can be repeated multiple times. Their molecular structure is mostly linear polymers, typically lacking active groups, and they do not undergo linear intermolecular cross-linking when heated. This allows waste thermoplastic products to be recycled and reprocessed into new products. Thermoplastics encompass a wide variety, including polyolefins (such as vinyl, olefin, styrene, acrylate, and fluorinated olefins), cellulose, polyether polyesters, and aromatic heterocyclic polymers. These thermoplastics possess numerous outstanding advantages, exhibiting excellent performance in mechanical properties, electrical properties, chemical resistance, heat resistance, abrasion resistance, and dimensional stability. Compared to metal materials, they are lightweight, facilitating the design of complex products, and requiring less energy during molding. Existing flexible forming fixtures for curved products use upper and lower mold cavities for shaping, which is not only ineffective but also prone to product rebound, failing to meet actual production needs. Therefore, this utility model proposes a flexible forming fixture for curved products. Utility Model Content

[0003] The purpose of this invention is to address the problem in the prior art that flexible shaping fixtures for curved products use upper and lower mold cavities for shaping, which not only have poor results but also cause products to easily rebound, failing to meet actual production needs. This invention proposes a flexible shaping fixture for curved products.

[0004] The technical solution of this utility model is as follows: A flexible shaping tooling for curved surface products includes: four guide rods for support and guidance, wherein a lower mold assembly is fixedly sleeved at the lower end of each guide rod, and an upper mold assembly is movably sleeved at the upper end of each guide rod; a first spring is sleeved on the outer wall of the guide rod, wherein the lower end of the first spring is fixedly connected to the lower mold assembly, and the upper end of the first spring is fixedly connected to the upper mold assembly.

[0005] Optionally, the lower mold assembly includes a base plate, the upper surface of which has a groove, and the interior of the groove has a plurality of movable blocks. The bottom surface of each movable block is rotatably connected to a threaded rod, which is threadedly sleeved with the base plate. The lower end of the threaded rod is fixedly connected to an internal hexagon block.

[0006] Optionally, the upper mold assembly includes a pressure plate, the upper surface of which has multiple slots, a guide block is movably sleeved inside the slots, a push rod is fixedly installed at the lower end of the guide block, the push rod passes through the pressure plate and extends to the outside, a second spring is fixedly connected to the upper end of the guide block, and a top plate is fixedly installed on the upper surface of the pressure plate, the top plate being fixedly connected to the upper end of the second spring.

[0007] Optionally, the lower end of the guide rod is fixedly connected to a support column.

[0008] Optionally, a guide sleeve is provided at the connection between the guide rod and the upper mold assembly.

[0009] Optionally, the upper surface of the active block is curved.

[0010] Optionally, a positioning pin is fixedly provided on the upper surface of the base plate.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] This utility model uses a unique four-guide rod support structure, combined with a first spring, to achieve an elastic connection between the upper and lower mold components. During the shaping process, the upper mold component can adaptively adjust according to the actual shape of the product, avoiding the problem of poor shaping effect caused by hard extrusion, greatly improving the shaping accuracy of curved products, effectively reducing deformation defects caused by excessive or uneven force, significantly improving the shaping effect, and meeting the actual production needs for high-precision products.

[0013] Furthermore, the height of the movable block in the lower mold assembly can be adjusted via a threaded rod, flexibly adapting to the bottom support requirements of different curved surface products. When the upper mold assembly applies pressure for shaping, it provides uniform and stable reverse support force from the bottom. At the same time, the push rod and the second spring structure in the upper mold assembly can slowly release pressure after shaping, further reducing the risk of product rebound and ensuring that the product can maintain a stable shape after shaping, greatly improving the product qualification rate and effectively solving the dilemma that existing tooling cannot meet actual production needs. Attached Figure Description

[0014] Figure 1 A schematic diagram of a flexible shaping fixture for curved surface products is provided.

[0015] Figure 2 for Figure 1 Top view of the lower and middle mold components;

[0016] Figure 3 for Figure 1 A partial structural diagram of the upper and middle mold components;

[0017] Figure 4 for Figure 1A partial structural diagram of the middle and lower mold components.

[0018] Figure label:

[0019] 1. Guide rod;

[0020] 2. Lower mold assembly; 21. Base plate; 22. Groove; 23. Movable block; 24. Threaded rod; 25. Socket hexagon block;

[0021] 3. Upper mold assembly; 31. Pressure plate; 32. Hole and slot; 33. Guide block; 34. Ejector rod; 35. Second spring; 36. Ejector plate;

[0022] 4. First spring; 5. Support column; 6. Guide sleeve; 7. Positioning pin. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0025] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, 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 based on the specific circumstances.

[0028] Example

[0029] like Figure 1 As shown, the present invention proposes a flexible forming fixture for curved products, comprising: four guide rods 1 for support and guidance, each guide rod 1 having a support column 5 fixedly connected to its lower end to provide stable support; a lower mold assembly 2 fixedly sleeved at the lower end of the guide rod 1, and an upper mold assembly 3 movably sleeved at the upper end of the guide rod 1 to ensure stable forming of the curved product; a guide sleeve 6 provided at the joint between the guide rod 1 and the upper mold assembly 3 to ensure stable movement of the upper mold assembly 3 on the outer wall of the guide rod 1; and a first spring 4 sleeved on the outer wall of the guide rod 1, the lower end of the first spring 4 being fixedly connected to the lower mold assembly 2, and the upper end of the first spring 4 being fixedly connected to the upper mold assembly 3 to provide stable support for the upper mold assembly 3.

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the lower mold assembly 2 includes a base plate 21. A positioning pin 7 is fixedly installed on the upper surface of the base plate 21 to position the curved product and ensure stability during the forming process. A groove 22 is opened on the upper surface of the base plate 21. Multiple movable blocks 23 are arranged inside the groove 22. The upper surface of the movable blocks 23 is curved and can fit tightly against the surface of the curved product. A threaded rod 24 is rotatably connected to the bottom surface of the movable block 23. The threaded rod 24 is threadedly connected to the base plate 21. An internal hexagon block 25 is fixedly connected to the lower end of the threaded rod 24 to facilitate adjustment of the height of the movable block 23 so that it fits tightly against the curved product.

[0031] like Figure 1 and Figure 3As shown, the upper mold assembly 3 includes a pressure plate 31. The upper surface of the pressure plate 31 has multiple slots 32. Guide blocks 33 are movably sleeved inside the slots 32 to ensure that the guide blocks 33 move stably inside the slots 32. A push rod 34 is fixedly installed at the lower end of the guide block 33, so that the guide block 33 drives the push rod 34 to move stably. The push rod 34 passes through the pressure plate 31 and extends to the outside, so that it can contact the surface of the curved product and apply pressure. A second spring 35 is fixedly connected to the upper end of the guide block 33. A top plate 36 is fixedly installed on the upper surface of the pressure plate 31. The top plate 36 is fixedly connected to the upper end of the second spring 35, so that the push rod 34 can apply pressure to the curved product.

[0032] The working principle of this embodiment is as follows: the curved product to be shaped is heated, and then the heated curved product is placed on the movable block 23 of the lower mold assembly 2, and the positioning pin 7 on the base plate 21 is used to position the product to be shaped.

[0033] Next, the height of the movable block 23 is adjusted by rotating the threaded rod 24 with an Allen wrench to accommodate the curvature of different products. The upper mold assembly 3 is then pressed down, compressing the first spring 4. The pressure plate 31 in the upper mold assembly 3 gradually approaches the product, the guide block 33 moves within the slot 32, and the push rod 34 contacts the product surface. As the pressure plate 31 continues to press down, the second spring 35 is further compressed, and the push rod 34 applies uniform pressure to the product, working in conjunction with the movable block 23 to shape the product.

[0034] During the shaping process, guide rod 1 provides support and guidance, while guide sleeve 6 ensures the smooth movement of upper mold assembly 3. After shaping, upper mold assembly 3 is released, and under the action of the first spring 4, upper mold assembly 3 returns to its original position, allowing the shaped product to be removed. The support columns 5 at the lower ends of the four guide rods 1 are used to stabilize the tooling.

[0035] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A flexible reshaping tool for a curved product, characterized by, Include: Four guide rods (1) for supporting the guide, the lower end of the guide rod (1) is fixedly sleeved with a lower die assembly (2), the lower die assembly (2) comprises a bottom plate (21), a recess (22) is formed in the upper surface of the bottom plate (21), a plurality of movable blocks (23) are arranged in the recess (22), a threaded rod (24) is rotatably connected to the bottom surface of the movable block (23), the threaded rod (24) is threadedly sleeved with the bottom plate (21), a hexagonal block (25) is fixedly connected to the lower end of the threaded rod (24), the upper end of the guide rod (1) is movably sleeved with an upper die assembly (3); The first spring (4) is sleeved on the outer wall of the guide rod (1), the lower end of the first spring (4) is fixedly connected with the lower die assembly (2), and the upper end of the first spring (4) is fixedly connected with the upper die assembly (3).

2. The flexible shaping tool for a curved product according to claim 1, wherein The upper die assembly (3) comprises a pressing plate (31), a plurality of hole grooves (32) are formed in the upper surface of the pressing plate (31), a guide block (33) is movably sleeved in the hole groove (32), a top rod (34) is fixedly arranged at the lower end of the guide block (33), the top rod (34) penetrates through the pressing plate (31) and extends to the outside, a second spring (35) is fixedly connected to the upper end of the guide block (33), a top plate (36) is fixedly arranged on the upper surface of the pressing plate (31), and the top plate (36) is fixedly connected with the upper end of the second spring (35).

3. The flexible shaping tool of claim 1, wherein, The lower end of the guide rod (1) is fixedly connected with a supporting column (5).

4. The flexible shaping tool of claim 1, wherein, A guide sleeve (6) is arranged at the sleeving position of the guide rod (1) and the upper die assembly (3).

5. The flexible shaping tool of claim 1, wherein, The upper surface of the movable block (23) is a curved surface.

6. The flexible shaping tool of claim 1, wherein, A positioning pin (7) is fixedly arranged on the upper surface of the bottom plate (21).

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