Combined type bending tire capable of being rapidly manufactured
By designing a modular bending die, the matching problem of profile and sheet metal bending parts in the production of rail passenger vehicles was solved, enabling rapid manufacturing and efficient production, and reducing costs.
Patent Information
- Application Number
- CN202520352870.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-03
AI Technical Summary
In the current production of rail passenger vehicles, the matching problem of bending tires for profile and sheet metal bending parts leads to low production efficiency and high costs, and the need to manufacture new bending tires for each part consumes funds and space.
A modular bending jig is made by combining multiple mold parts and connecting them with bolts. The mold parts match the workpiece and the thickness can be adjusted, making it suitable for bending and forming different profiles and sheet metal parts.
This technology enables rapid production of modular bending tires, shortens the production cycle, reduces manufacturing costs and inventory management costs, and improves production efficiency.
Smart Images

Figure CN223833239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail passenger vehicle manufacturing technology, and in particular to a modular bending tire that can be manufactured quickly. Background Technology
[0002] In the manufacturing process of rail passenger vehicles, there are many types and quantities of profile and sheet metal bending parts. In the existing manufacturing process of rail passenger vehicle bending parts, bending jigs are required to bend and shape the workpieces.
[0003] For profile bending parts, due to their inconsistent cross-sections, diverse types, and varying bending radii, there are no matching bending jigs, necessitating the manufacture of new bending jigs. For sheet metal bending parts, each workpiece has different thicknesses, bending radii, dimensions, and shapes. Especially for sheet metal bending parts with large arcs or special shapes (such as deep grooves), there are no perfectly matching bending jigs. Currently, in the manufacturing process, existing bending jigs are used for continuous point R-forming, resulting in low production efficiency and high time and labor costs. For deep groove bending parts, there are no corresponding bending jigs, requiring the manufacture or modification of existing bending jigs for bending, which is costly.
[0004] At the same time, if new bending tires are made for each type of part, it will cost a lot of money, take up storage space, and increase maintenance and upkeep costs.
[0005] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a modular bending tire that can be manufactured quickly. Utility Model Content
[0006] The purpose of this invention is to provide a modular bending tire that can be manufactured quickly, applicable to the bending and forming of profiles and sheet metal parts. It has a fast manufacturing speed, reduces the production cycle, greatly saves the cost of manufacturing bending tires, and reduces inventory management costs.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] This utility model discloses a modular bending tire that can be quickly manufactured, the modular bending tire comprising:
[0009] Multiple mold parts; and
[0010] A connector that combines multiple mold parts into one piece;
[0011] The multiple mold components are manufactured as plate structures with different lengths, thicknesses, and curvatures, and the height and bending curvature of the corresponding surfaces of the mold components and the workpieces are matched and abut against the workpieces.
[0012] Furthermore, the multiple mold components are divided into five groups;
[0013] The five sets of mold components are respectively the first mold component, the second mold component, the third mold component, the fourth mold component, and the fifth mold component.
[0014] Furthermore, the number of the first mold components is four, and the first mold components are formed by processing 5mm carbon steel plates;
[0015] The second mold component consists of four pieces, and the second mold component is formed from 5mm carbon steel plate;
[0016] The number of the third mold parts is ten, and the third mold parts are formed by processing 0.5mm carbon steel plates;
[0017] The fourth mold component consists of two pieces, and the fourth mold component is formed from 4mm carbon steel plate.
[0018] The fifth mold component consists of four pieces, and each fifth mold component is formed from a 5mm thick carbon steel plate.
[0019] The lower end of some of the mold parts is an arc surface, and the lower end of some of the mold parts is a conical surface.
[0020] Furthermore, the connecting component is a connecting bolt;
[0021] The mold component includes a mold body, and the mold body has two positioning holes spaced apart along its length axis.
[0022] The adjacent mold parts are connected as one unit by connecting bolts passing through the positioning holes and connecting nuts that mate with the connecting bolts.
[0023] Furthermore, the upper end of the mold body is a protrusion;
[0024] The multiple protrusions of the multiple mold parts are arranged close to each other to form a mating part that engages with the upper clamping groove of the external bending machine.
[0025] Furthermore, the total thickness of the combined bending tire can be adjusted by adding adjusting shims between any group of adjacent mold parts.
[0026] Furthermore, the workpiece that mates with the combined bending tire has:
[0027] Workpiece base plate, two workpiece upright plates;
[0028] Each of the mold components of the combined bending tire contacts the upper surface of the workpiece base plate or the workpiece upright plate.
[0029] In the above technical solution, the modular bending tire that can be quickly manufactured by this utility model has the following beneficial effects:
[0030] This utility model's modular bending tire consists of multiple mold parts with corresponding lengths, curvatures, and thicknesses. These mold parts are connected and positioned by connecting bolts at two positioning holes, thus forming a modular bending tire that matches the various positions of the workpiece and meets the bending curvature forming requirements. This modular bending tire can be manufactured using on-site steel plate scraps through laser cutting, based on the thickness and shape of the component blocks, enabling rapid process trial production, shortening the manufacturing cycle, and achieving zero cost.
[0031] This utility model's combined bending jig utilizes steel plates of different shapes and thicknesses to form a bending jig that adapts to the cross-section of the workpiece or the arc shape of the sheet metal. At the same time, the mating part at the upper end of the combined bending jig matches the clamping groove on the bending machine, allowing for clamping to facilitate the normal operation of subsequent bending work. Attached Figure Description
[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0033] Figure 1 This is a diagram showing the usage state of a modular bending tire that can be quickly manufactured according to an embodiment of the present utility model.
[0034] Figure 2 This is a structural schematic diagram of the first mold component of a modular bending tire that can be manufactured quickly, as disclosed in an embodiment of this utility model.
[0035] Figure 3 This is a schematic diagram of the structure of the second mold component of a modular bending tire that can be manufactured quickly, as disclosed in an embodiment of this utility model.
[0036] Figure 4 This is a structural schematic diagram of the third mold component of a modular bending tire that can be quickly manufactured, as disclosed in an embodiment of this utility model.
[0037] Figure 5 This is a structural schematic diagram of the fourth mold component of a modular bending tire that can be quickly manufactured, as disclosed in an embodiment of this utility model.
[0038] Figure 6 This is a structural schematic diagram of the fifth mold component of a modular bending tire that can be quickly manufactured, as disclosed in an embodiment of this utility model.
[0039] Explanation of reference numerals in the attached figures:
[0040] 1. Modular bending jig; 4. Workpiece;
[0041] 101. Fitting part; 102. Adjusting shim;
[0042] 301. Connecting bolt; 302. Connecting nut;
[0043] 401. Workpiece base plate; 402. Workpiece upright plate;
[0044] 11. First mold component; 12. Second mold component; 13. Third mold component; 14. Fourth mold component; 15. Fifth mold component;
[0045] 1001. Mold body; 1002. Positioning hole; 1003. Projection. Detailed Implementation
[0046] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0047] See Figures 1 to 6 As shown;
[0048] This embodiment provides a modular bending tire that can be manufactured quickly. The modular bending tire 1 includes:
[0049] Multiple mold parts; and
[0050] A connector that combines multiple mold parts into one piece;
[0051] Multiple mold parts are made into plate structures with different lengths, thicknesses, and curvatures, and the height and bending curvature of the corresponding surfaces of the mold parts and workpiece 4 are matched and abut against workpiece 4.
[0052] Specifically, this embodiment discloses a modular bending tire that can be manufactured quickly. It is composed of multiple mold parts, which are divided into multiple groups. The shapes and thicknesses of the mold parts in different groups need to be different so that the corresponding shapes, thicknesses and quantities of mold parts can be selected to form bending tires that are adapted to different profile cross sections or plate arcs, so as to achieve free combination and quick assembly and disassembly.
[0053] Specifically, the multiple mold parts are divided into five groups;
[0054] The five sets of mold parts are the first mold part 11, the second mold part 12, the third mold part 13, the fourth mold part 14, and the fifth mold part 15.
[0055] In this embodiment, there are four first mold parts 11, and the first mold parts 11 are formed by processing 5mm carbon steel plates.
[0056] The second mold part 12 consists of four pieces, and the second mold part 12 is formed by processing 5mm carbon steel plate;
[0057] The number of third mold parts 13 is ten, and the third mold parts 13 are formed by processing 0.5mm carbon steel plates;
[0058] The fourth mold part 14 consists of two pieces, and the fourth mold part 14 is formed by processing 4mm carbon steel plate;
[0059] The fifth mold part 15 consists of four pieces, and the fifth mold part 15 is formed by processing 5mm carbon steel plate;
[0060] The lower end of some mold parts is an arc surface, while the lower end of some mold parts is a conical surface.
[0061] Preferably, in this embodiment, the connecting component is a connecting bolt 301;
[0062] The mold component includes a mold body 1001, and the mold body 1001 has two positioning holes 1002 machined at intervals along the axis of the length direction; adjacent mold components are connected as one unit by connecting bolts 301 passing through the positioning holes 1002 and connecting nuts 302 that cooperate with the connecting bolts 301.
[0063] Preferably, in this embodiment, the upper end of the mold body 1001 is a protrusion 1003;
[0064] Multiple protrusions 1003 of multiple mold parts are arranged close to each other to form a mating part 101 that mates with the upper clamping groove of an external bending machine.
[0065] To adjust the total thickness, in this embodiment, the total thickness of the combined bending tire 1 is adjusted by adding adjusting shims 102 between any group of adjacent mold parts. Furthermore, the adjusting shims 102 in this embodiment can be selected from various thicknesses according to actual needs.
[0066] Among them, the workpiece 4 that cooperates with the combined bending jig 1 has a workpiece base plate 401 and two workpiece upright plates 402.
[0067] Each mold component of the combined bending die 1 contacts the upper surface of the workpiece base plate 401 or the workpiece upright plate 402.
[0068] First, based on the profile cross-section or the part shape and bending radius of the sheet metal, the thickness and shape of the mold part in this embodiment are designed to form a two-dimensional drawing;
[0069] Secondly, steel plates are used to produce various mold parts through laser cutting, and bolts and nuts are used to assemble and fix the mold parts together.
[0070] Finally, the combined bending jig 1 is mounted on the bending machine for trial production. The cross-sectional thickness of the combined bending jig 1 can be adjusted by adding adjusting shims 102, so as to achieve the purpose of matching the profile cross-section and the width of the sheet metal workpiece.
[0071] In the above technical solution, the modular bending tire that can be quickly manufactured by this utility model has the following beneficial effects:
[0072] This utility model's modular bending tire is composed of multiple mold parts with corresponding lengths, curvatures, and thicknesses. The multiple mold parts are connected by connecting bolts 301 at two positioning holes 1002, thereby forming a modular bending tire that matches the various positions of the workpiece 4 and meets the bending curvature forming requirements. This modular bending tire 1 can be made using on-site steel plate scraps through laser cutting according to the thickness and shape of the component blocks, enabling rapid process trial production, shortening the production cycle, and achieving zero cost.
[0073] The combined bending jig 1 of this utility model utilizes steel plates of different shapes and thicknesses to form a bending jig that adapts to the cross-section of the workpiece or the arc shape of the sheet metal. At the same time, the mating part at the upper end of the combined bending jig matches the clamping groove on the bending machine, which can be clamped to ensure the normal operation of subsequent bending work.
[0074] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A modular bending tire that can be quickly manufactured, characterized in that, The combined bending tire (1) includes: Multiple mold parts; and A connector that combines multiple mold parts into one piece; The multiple mold parts are made into plate structures with different lengths, thicknesses and curvatures, and the height and bending curvature of the corresponding surfaces of the mold parts and the workpiece (4) are matched and abut against the workpiece (4).
2. The modular bending tire that can be quickly manufactured according to claim 1, characterized in that, The aforementioned mold components are divided into five groups; The five sets of mold components are respectively the first mold component (11), the second mold component (12), the third mold component (13), the fourth mold component (14), and the fifth mold component (15).
3. The modular bending tire that can be quickly manufactured according to claim 2, characterized in that, The number of the first mold parts (11) is four, and the first mold parts (11) are formed by processing 5mm carbon steel plates; The second mold component (12) consists of four pieces, and the second mold component (12) is formed from 5mm carbon steel plate; The number of the third mold parts (13) is ten, and the third mold parts (13) are formed by processing 0.5mm carbon steel plates; The fourth mold part (14) consists of two pieces, and the fourth mold part (14) is formed by processing 4mm carbon steel plate; The fifth mold component (15) consists of four pieces, and the fifth mold component (15) is formed by processing 5mm carbon steel plate; The lower end of some of the mold parts is an arc surface, and the lower end of some of the mold parts is a conical surface.
4. The modular bending tire that can be quickly manufactured according to claim 2, characterized in that, The connecting component is a connecting bolt (301); The mold component includes a mold body (1001), and the mold body (1001) has two positioning holes (1002) spaced apart along the axis of the length direction; The adjacent mold parts are connected as one unit by a connecting bolt (301) passing through the positioning hole (1002) and a connecting nut (302) that mates with the connecting bolt (301).
5. A modular bending tire that can be quickly manufactured according to claim 4, characterized in that, The upper end of the mold body (1001) is a protrusion (1003); The plurality of protrusions (1003) of the plurality of the mold parts are close to each other to form a mating part (101) that mates with the upper clamping groove of the external bending machine.
6. A modular bending tire that can be quickly manufactured according to claim 4, characterized in that, The total thickness of the combined bending tire (1) can be adjusted by adding an adjustment shim (102) between any group of adjacent mold parts.
7. A modular bending tire that can be quickly manufactured according to claim 6, characterized in that, The workpiece (4) that mates with the combined bending jig (1) has: Workpiece base plate (401), two workpiece upright plates (402); Each of the mold components of the combined bending die (1) is in contact with the upper surface of the workpiece base plate (401) or the workpiece upright plate (402).