Windowed bending die

Abstract

The utility model belongs to the technical field of bending die, concretely relates to a windowed bending die. The windowed bending die, including: the die body, the middle part of die body is provided with windowed openwork structure, detachable die core is detachably connected in die body, wherein, windowed openwork structure is configured as providing movement avoidance space for workpiece in the bending process. The windowed bending die of the utility model, the detachable connection design of detachable die core makes the die have flexibility and adaptability, and operating personnel can replace the matched die core according to the bending demand of different workpieces, which changes the single function of the traditional fixed die to a certain extent. The windowed openwork structure not only effectively reduces the overall height of the die, so that it can adapt to more models of bending equipment, but more importantly, it provides sufficient movement space for the deformation of the workpiece in the bending process, avoiding the occurrence of interference problems.

Description

Technical Field

[0001] This utility model belongs to the field of bending die technology, specifically relating to a window-type bending die. Background Technology

[0002] The existing gooseneck mold has a total height of 550mm, which exceeds the bending machine's stroke (500mm). Furthermore, the customization cycle is long (4 weeks), and the radius (R) angle is not adjustable (requiring multiple mold sets to adapt to different parts). Figure 1 This is a structural diagram of a gooseneck window-type bending die in related technologies. Deep-groove parts (such as the fuel tank lifting lugs of the Fuxing bullet train) need to withstand high-strength loads and generally require integral molding to avoid the degradation of mechanical properties caused by welding. However, traditional gooseneck dies cannot be adapted to large bending machines due to height limitations, requiring extra-large equipment, and the high cost and long cycle restrict production efficiency. The prior art document CN202910161U avoids the workpiece edge by opening the upper die, but lacks a die core replacement function. Utility Model Content

[0003] The purpose of this invention is to provide a new type of window-type bending die to solve or improve at least one technical problem existing in the related art.

[0004] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows:

[0005] A window-type bending die, comprising:

[0006] The mold body has a window-type hollow structure in the middle.

[0007] A detachable mold core is detachably connected to the mold body;

[0008] The open-window hollow structure is configured to provide movement avoidance space for the workpiece during the bending process.

[0009] As an improvement to the aforementioned window-type bending die, the first dimension of the window-type hollow structure is 200mm, and the second dimension is 150mm.

[0010] As an improvement to the aforementioned window-type bending die, the detachable die core is connected to the die body by bolt fasteners to form a detachable connection structure.

[0011] As an improvement to the aforementioned window-type bending die, the die body includes:

[0012] The mold connecting plate extends along the first direction;

[0013] A pair of support molds are arranged parallel to each other along the second direction, and the inner side of the first end of each support mold is perpendicularly and fixedly connected to the end of the mold connecting plate.

[0014] A pair of mold fixing plates are fixedly connected to the outside of the corresponding support mold. The first end of each mold fixing plate is aligned with the first end of the corresponding support mold, and the second end extends beyond the second end of the corresponding support mold to form a mold core connecting part.

[0015] A downward reinforcing block is connected between the second ends of the two support molds;

[0016] The mold core connecting part is configured to form a detachable connection with the detachable mold core.

[0017] As an improvement to the aforementioned window-type bending die, the die core connecting part is provided with a bolt connection through hole; the detachable die core is detachably fixed by bolts passing through the bolt connection through hole.

[0018] As an improvement to the aforementioned window-type bending die, a positioning groove is provided at the second end of each support die; the shape of the positioning groove is adapted to the shape of the detachable die core.

[0019] As an improvement to the aforementioned window-type bending die, the support die is made of quenched 45# steel and is fixedly connected to the corresponding die fixing plate by welding; the die fixing plate is made of Q235 steel plate.

[0020] As an improvement to the aforementioned window-type bending die, the lower pressure reinforcing block and the support die are positioned and connected by a positioning pin.

[0021] As an improvement to the aforementioned window-type bending die, the detachable die core includes various R-angle forming die cores of different specifications; each R-angle forming die core can be selectively installed on the die body.

[0022] As an improvement to the aforementioned window-type bending die, the R-angle forming die core includes three standard specifications: R10, R20, and R30.

[0023] This utility model discloses a window-type bending die, which combines a central hollow structure with a detachable die core. The detachable connection design of the die core gives the die flexibility and adaptability, allowing operators to quickly change to the appropriate die core according to the bending requirements of different workpieces, thus significantly improving the functionality of traditional fixed dies. The window-type hollow structure not only effectively reduces the overall height of the die, making it compatible with more bending equipment models, but more importantly, it provides ample space for workpiece deformation during the bending process, avoiding interference. This combined design maintains the stability of the overall structure while giving the die process adaptability, making it particularly suitable for the multi-specification, small-batch production needs of deep-groove workpieces. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a gooseneck mold in related technologies.

[0026] Figure 2 This is a structural schematic diagram of a window-type bending die according to one embodiment of the present invention.

[0027] Figure 3 This is a structural schematic diagram of a window-type bending die according to one embodiment of the present invention.

[0028] Figure 4 This is a structural schematic diagram of a window-type bending die according to one embodiment of the present invention.

[0029] Figure 5 This is a structural schematic diagram of a window-type bending die according to one embodiment of the present invention.

[0030] Figure 6 This is a structural schematic diagram of a window-type bending die according to one embodiment of the present invention.

[0031] Legend:

[0032] 10. Mold body; 20. Window-type hollow structure; 30. Detachable mold core.

[0033] 40. Workpiece; 11. Mold connecting plate; 12. Support mold

[0034] 13. Mold fixing plate 14. Lower pressure reinforcing block Detailed Implementation

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", 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 are not intended to 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.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction. In the description of this specification, deep groove parts: metal parts with U-shaped or deep groove structures that need to be integrally formed by bending processes (such as the fuel tank lifting lugs of the CR450 high-speed train). Gooseneck molds: traditional bending molds, named for their resemblance to a gooseneck, suitable for deep groove bending but with height limitations.

[0040] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this utility model embodiment provides a window-type bending die, including: a die body 10, with a window-type hollow structure 20 provided in the middle of the die body 10; and a detachable die core 30, detachably connected to the die body 10; wherein the window-type hollow structure 20 is configured to provide movement avoidance space for the workpiece 40 during the bending process. This window-type bending die, through the hollow structure design in the middle, effectively reduces the overall height of the die, making it compatible with the working stroke limitations of standard bending equipment. The hollow area provides ample avoidance space for the deformation of the workpiece 40 during the bending process, avoiding the interference problems common in traditional dies, while significantly reducing the die's weight, lowering equipment operating energy consumption, and improving the stability of the processing process. Furthermore, the detachable connection design of the detachable die core 30 gives the die flexibility and adaptability, allowing operators to quickly change the matching die core according to the bending requirements of different workpieces 40, thus changing the single-function situation of traditional fixed dies to a certain extent. The window-type bending die of this utility model reduces the total height of the die through a hollow structure and supports quick replacement of the die core.

[0041] As described above, the window-type bending die of this utility model combines a centrally located hollow structure with a detachable die core 30. The detachable connection design of the die core 30 gives the die flexibility and adaptability, allowing operators to quickly change to the appropriate die core according to the bending requirements of different workpieces 40, thus changing the traditional single-function limitations of fixed dies to a certain extent. The window-type hollow structure 20 not only effectively reduces the overall height of the die, making it compatible with more bending equipment models, but more importantly, it provides ample space for the workpiece 40 to deform during the bending process, avoiding interference problems. This combined design maintains the stability of the overall structure while giving the die process adaptability, making it particularly suitable for the multi-specification, small-batch production needs of deep-groove workpieces 40.

[0042] In some embodiments of this utility model, the first dimension of the window-type hollow structure 20 is 200mm, and the second dimension is 150mm. This specifically sized hollow structure is designed to provide clearance for various deep-groove workpieces 40 while ensuring structural strength. This dimensional design guarantees both the rigidity requirements of the mold and provides ample working space for operators to replace the mold core, achieving a perfect balance between functionality and ease of operation.

[0043] In some embodiments of this invention, the detachable mold core 30 is detachably connected to the mold body 10 via bolt fasteners (not shown in the figure). This bolted detachable mold core 30 design greatly improves the maintenance efficiency and flexibility of the mold. This connection method simplifies the mold core replacement process and reduces downtime.

[0044] In some embodiments of this utility model, the mold body 10 includes: a mold connecting plate 11 extending along a first direction; a pair of supporting molds 12, arranged parallel to each other along a second direction, with the inner side of the first end of each supporting mold 12 perpendicularly fixedly connected to the end of the mold connecting plate 11; a pair of mold fixing plates 13, respectively fixedly connected to the outer side of the corresponding supporting mold 12, with the first end of each mold fixing plate 13 aligned with the first end of the corresponding supporting mold 12, and the second end of each mold fixing plate 13 extending beyond the second end of the corresponding supporting mold 12 to form a mold core connecting portion (not shown in the figure); and a pressing reinforcing block 14 connected between the second ends of the two supporting molds 12; wherein the mold core connecting portion is configured to form a detachable connection with the detachable mold core 30. The modular mold body 10 structure achieves multiple advantages through scientific layout: the combination of the supporting mold 12 and the connecting plate forms a stable support structure, significantly improving the resistance to deformation; the extended design of the mold core connecting portion ensures installation accuracy; the overall structure is optimized, achieving lightweight while ensuring strength, and improving material utilization efficiency. The pressure reinforcement block 14 is used to prevent mold deformation, and it can be positioned with the support mold 12 by means of pins.

[0045] In some embodiments of this utility model, the mold core connecting part is provided with a bolt connection through hole (not shown in the figure); the detachable mold core 30 is detachably fixed by a bolt (not shown in the figure) passing through the bolt connection through hole. The bolt through hole design of the mold core connecting part enables rapid and accurate positioning of the mold core. The bolt can be, but is not limited to, an M12 bolt.

[0046] In some embodiments of this invention, a positioning groove (not shown in the figure) is provided at the second end of each support mold 12; the shape of the positioning groove is adapted to the shape of the detachable mold core 30. The positioning groove at the end of the support mold 12 precisely matches the shape of the mold core, forming a self-locking positioning structure. This design not only ensures accurate positioning during installation but also effectively suppresses mold core displacement during processing.

[0047] In some embodiments of this utility model, the support mold 12 is made of quenched 45# steel and is fixedly connected to the corresponding mold fixing plate 13 by welding; the mold fixing plate 13 is made of Q235 steel plate. The support mold 12 uses high-quality heat-treated steel, combined with welding technology, to achieve high strength requirements in key areas. The mold fixing plate 13 is made of a material with good toughness; the combination of the two forms a strong and tough match, satisfying load-bearing requirements while controlling manufacturing costs, reflecting the scientific nature of material selection. The mold fixing plate 13 can be, but is not limited to, a 20mm thick Q235 steel plate, and is used to connect to the bending machine table. The support mold 12 can be, but is not limited to, quenched 45# steel, and is used to distribute bending stress; it is welded to the mold fixing plate 13.

[0048] In some embodiments of this invention, the pressing reinforcing block 14 and the supporting mold 12 are positioned and connected by a locating pin (not shown in the figure). This pin-based positioning connection between the pressing reinforcing block 14 and the supporting mold 12 provides assembly accuracy. This connection structure effectively resists various off-center loads during processing, ensuring positioning stability during long-term use.

[0049] In some embodiments of this utility model, the detachable mold core 30 includes multiple R-angle forming mold cores of different specifications; each R-angle forming mold core can be selectively installed on the mold body 10. The replaceable multi-specification R-angle mold core system realizes rapid functional conversion of the mold. The standardized interface design allows for convenient interchangeability of mold cores of different specifications, greatly improving the utilization efficiency of the equipment, shortening the preparation time during product changeover, and providing convenience for diversified production.

[0050] In some embodiments of this utility model, the specifications of the R-angle forming mold core include three standard specifications: R10, R20, and R30. This standardized series of R-angle mold core specifications covers the processing requirements of the vast majority of deep groove parts. Precise manufacturing processes ensure dimensional consistency and surface quality across all mold core specifications, while strict interchangeability standards guarantee processing accuracy after replacement, providing a reliable guarantee for mass production.

[0051] In summary, the window-type bending die of this utility model combines a centrally located hollow structure with a detachable die core 30. The detachable connection design of the die core 30 gives the die flexibility and adaptability, allowing operators to quickly change to the appropriate die core according to the bending requirements of different workpieces 40, thus changing the traditional single-function limitation of fixed dies to a certain extent. The window-type hollow structure 20 not only effectively reduces the overall height of the die, making it compatible with more bending equipment models, but more importantly, it provides ample space for the workpiece 40 to deform during the bending process, avoiding interference problems. This combined design maintains the stability of the overall structure while giving the die process adaptability, making it particularly suitable for the multi-specification, small-batch production needs of deep-groove workpieces 40.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A window-type bending die, characterized in that, include: The mold body (10) has a window-type hollow structure (20) in the middle. A detachable mold core (30) is detachably connected to the mold body (10); The open-window hollow structure (20) is configured to provide movement avoidance space for the workpiece (40) during the bending process.

2. The window-type bending die as described in claim 1, characterized in that: The first dimension of the window-type hollow structure (20) is 200mm, and the second dimension is 150mm.

3. The window-type bending die as described in claim 1, characterized in that, The detachable mold core (30) is connected to the mold body (10) by bolt fasteners to form a detachable connection structure.

4. The window-type bending die as described in claim 1, characterized in that, The mold body (10) includes: Mold connecting plate (11) extends along the first direction; A pair of support molds (12) are arranged parallel to each other along the second direction, and the inner side of the first end of each support mold (12) is perpendicularly fixedly connected to the end of the mold connecting plate (11). A pair of mold fixing plates (13) are fixedly connected to the outside of the corresponding support mold (12). The first end of each mold fixing plate (13) is aligned with the first end of the corresponding support mold (12), and the second end extends beyond the second end of the corresponding support mold (12) to form a mold core connecting part. A pressure reinforcing block (14) is connected between the second ends of the two support molds (12); The mold core connecting part is configured to form a detachable connection with the detachable mold core (30).

5. The window-type bending die as described in claim 4, characterized in that: The mold core connecting part is provided with a bolt connection through hole; the detachable mold core (30) is detachably fixed by a bolt passing through the bolt connection through hole.

6. The window-type bending die as described in claim 4, characterized in that: Each support mold (12) has a positioning groove at its second end; the shape of the positioning groove is adapted to the shape of the detachable mold core (30).

7. The window-type bending die as described in claim 4, characterized in that: The support mold (12) is made of quenched 45# steel and is fixedly connected to the corresponding mold fixing plate (13) by welding; the mold fixing plate (13) is made of Q235 steel plate.

8. The window-type bending die as described in claim 4, characterized in that: The pressure reinforcing block (14) and the support mold (12) are positioned and connected by positioning pins.

9. The window-type bending die as described in any one of claims 1-8, characterized in that: The detachable mold core (30) includes various R-angle forming mold cores of different specifications; Each R-angle forming core can be selectively installed on the mold body (10).

10. The window-type bending die as described in claim 9, characterized in that: The specifications of the R-angle forming mold core include three standard specifications: R10, R20, and R30.

Images