A steel box girder manhole ring bending mechanism

Abstract

The utility model discloses a kind of for steel box girder manhole ring bending processing mechanism, belong to steel sheet bending technical field, including processing table, the upper rotation of processing table is equipped with first disc, is equipped with a plurality of first jack on first disc, the upper fixed of processing table is symmetrically distributed with strip seat, is equipped with a plurality of second jack on strip seat, processing mechanism further include with the first jack adaptation first axle pin and with the second jack adaptation second axle pin, the center of first disc is fixed with third axle pin, processing mechanism further include second disc, is equipped with the third jack of adaptation with third axle pin on second disc.The utility model processing mechanism can quickly adapt to the manhole ring processing requirement of different bending radius by replacing second disc of different diameter, without complex adjustment, significantly improve processing flexibility;Adopt modular design of jack and axle pin, make mould installation, steel sheet positioning and bending process intuitive easy operation, reduce artificial technical threshold.

Description

Technical Field

[0001] This utility model belongs to the field of steel plate bending technology, and in particular relates to a bending processing mechanism for manhole rings of steel box girders. Background Technology

[0002] In the production of steel box girders, manhole rings are indispensable connecting components, and their processing quality directly affects installation accuracy and efficiency. Traditionally, the bending of manhole rings relies on two main methods: one is manual operation, where steel plates are heated and then manually struck or bent using simple tools. However, this method is inefficient, produces inconsistent curvature, and requires highly experienced workers. The other method uses large pressure equipment with customized molds. While this ensures forming accuracy, it involves high equipment investment costs and insufficient flexibility. Especially in small-batch, multi-specification production, frequent tooling changes lead to a surge in costs.

[0003] In existing technologies, problems such as complex mold adjustments and inaccurate positioning are particularly prominent. For example, when processing manhole rings with different bending radii, it is necessary to redesign the mold or adjust multiple sets of mechanical structures, which is time-consuming and labor-intensive. In addition, the traditional bending process is prone to local deformation or curvature deviation of the steel plate due to uneven stress, requiring repeated correction. Although some automated equipment can improve efficiency, it relies on large power systems, has high energy consumption and complex operation, making it difficult to meet the needs of small and medium-sized production.

[0004] Therefore, there is an urgent need for a manhole ring processing mechanism that is simple in structure and easy to operate, capable of quickly adapting to processing requirements with different bending radii, reducing the technical threshold for manual labor, and achieving high-precision, low-cost flexible production through standardized and modular design.

[0005] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0006] To address the aforementioned issues, the purpose of this invention is to provide a bending processing mechanism for manhole rings in steel box girders. By replacing the second disc (bending mold) with one of different diameters, it can quickly adapt to the processing requirements of manhole rings with different bending radii without requiring complex adjustments, thus significantly improving processing flexibility.

[0007] To achieve the above objectives, this utility model proposes a bending processing mechanism for manhole rings of steel box girders. The processing mechanism includes a processing table, a first disc rotatably mounted above the processing table, the first disc having a plurality of first insertion holes, and symmetrically distributed strip seats fixed above the processing table, the strip seats having a plurality of second insertion holes.

[0008] The processing mechanism also includes a second shaft pin adapted to the first socket and a first shaft pin adapted to the second socket.

[0009] The first disc has a third shaft pin fixed at its center. The processing mechanism also includes a second disc, on which a third insertion hole adapted to the third shaft pin is provided.

[0010] Furthermore, the bottom of the processing table is equipped with an array of casters.

[0011] Furthermore, the second disc has different models, and the difference between the different models of the second disc lies in its diameter or the position of the third socket.

[0012] Furthermore, the strip seat is connected to the processing table by several bolts.

[0013] Furthermore, a motor for driving the first disc to rotate is fixed inside the processing table.

[0014] Furthermore, the first insertion hole is a non-circular hole, and the second shaft pin includes an insertion block adapted to the first insertion hole. A strip block is fixed above the insertion block, a slide rail is provided above the strip block, a sliding block is slidably provided in the slide rail, and a vertical shaft is provided above the sliding block.

[0015] Furthermore, the vertical shaft and the sliding block are rotatably connected, and when the insert block is inserted into the first insertion hole, the slide rail faces the third shaft pin.

[0016] Furthermore, a drive button is fixed to one end of the strip block, and a lead screw adapted to the slider is fixed on the output shaft of the drive button.

[0017] The bending processing mechanism for manhole rings of steel box girders proposed in this utility model can bring the following beneficial effects: 1. The processing mechanism of this utility model can quickly adapt to the processing requirements of manhole rings with different bending radii by changing the second disc (bending mold) of different diameters, without complicated adjustments, and significantly improves processing flexibility; 2. The processing mechanism of this utility model adopts a modular design of insertion holes and shaft pins, which makes the mold installation, steel plate positioning and bending process intuitive and easy to operate, reduces the technical threshold of manual labor, and has a simple structure and convenient operation. 3. The processing mechanism of this utility model uses the edge of the second disc and the second shaft pin to position the steel plate in both directions, so that it is evenly stressed during the rotation and extrusion process, ensuring that the bending arc is consistent with the curvature of the mold and avoiding local deformation or deviation. 4. The processing mechanism of this utility model completes plastic bending by driving the disc to rotate with a motor, replacing traditional manual or large pressure equipment, reducing manpower consumption, and the miniaturized design saves energy. 5. The processing mechanism of this utility model can reuse standardized disc molds, eliminating the need for customized expensive tooling, making it suitable for small-batch, multi-specification production and reducing processing costs. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a partial structural schematic diagram of a bending processing mechanism for manhole rings of steel box girders according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a bending processing mechanism for manhole rings of steel box girders according to the present invention.

[0020] Figure 3 This is a schematic diagram of the processing mechanism and the steel plate to be bent according to the present invention.

[0021] Figure 4 This is a schematic diagram illustrating the principle of the processing mechanism and the bending of a 90° steel plate according to this utility model.

[0022] Figure 5 This is a schematic diagram of the preferred structure of the second shaft pin of this utility model.

[0023] In the diagram: 1. Machining table; 2. Casters; 3. First disc; 4. Strip seat; 5. First axle pin; 6. Second axle pin; 61. Insert block; 62. Strip block; 63. Slide rail; 64. Sliding block; 65. Vertical shaft; 66. Drive button; 67. Lead screw; 7. Third axle pin; 8. Second disc; 10. Steel plate; 31. First insertion hole; 41. Second insertion hole; 72. Third axle pin; 81. Third insertion hole. Detailed Implementation

[0024] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", 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.

[0026] 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.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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.

[0028] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0029] An embodiment of this utility model proposes a bending processing mechanism for manhole rings of steel box girders. The processing mechanism includes a processing table 1, such as... Figure 1 As shown, the bottom of the processing table 1 is equipped with casters 2 arranged in an array, and a first disc 3 is rotatably mounted on the top of the processing table 1. A motor for driving the first disc 3 to rotate is fixed inside the processing table 1. Several first insertion holes 31 are opened on the first disc 3. A symmetrically distributed strip seat 4 is fixed on the top of the processing table 1. The strip seat 4 is connected to the processing table 1 by several bolts.

[0030] The strip-shaped base 4 has several second insertion holes 41.

[0031] The machining mechanism also includes a first pin 5 adapted to the second socket 41 and a second pin 6 adapted to the first socket 31.

[0032] The center of the first disk 3 is fixed with a third shaft pin 7, and the machining mechanism also includes a second disk 8, such as... Figure 2As shown, the second disc 8 has a third insertion hole 81 that is adapted to the third shaft pin 7. The second disc 8 has different models, and the difference between the different models of the second disc 8 is that its diameter or the position of the third insertion hole 81 is different.

[0033] Preferably, the first insertion hole 31 is a non-circular hole, and the second shaft pin 6 includes a plug 61 adapted to the first insertion hole 31, such as... Figure 5 As shown, a strip block 62 is fixed above the insert block 61, a slide rail 63 is provided above the strip block 62, a sliding block 64 is slidably provided in the slide rail 63, and a vertical shaft 65 is provided above the sliding block 64. The vertical shaft 65 and the sliding block 64 are preferably rotatably connected. When the insert block 61 is inserted into the first insertion hole 31, the slide rail 63 faces the third shaft pin 7. A drive button 66 is fixed at one end of the strip block 62, and a lead screw 67 adapted to the insert block 61 is fixed on the output shaft of the drive button 66.

[0034] Working principle: such as Figure 3 , Figure 4 As shown, the processing table is moved to the working position by the caster 2. According to the bending radius requirement of the manhole ring, a suitable model of second disc 8 (different diameter or third insertion hole 81 position) is selected. It is fitted onto the third axle pin 7 at the center of the first disc 3 through the third insertion hole 81. One end of the steel plate 10 to be bent is pressed tightly against the edge of the second disc 8 (as a bending mold). The second axle pin 6 is inserted into the corresponding first insertion hole 31, so that one side of the steel plate 10 is pressed tightly against the second disc 8 and the other side is pressed tightly against the second axle pin 6. The position of the sliding block 64 is adjusted by rotating the drive knob 66 ​​according to the thickness of the steel plate. By inserting the first axle pin 5 into the corresponding second insertion hole 41, the first axle pin 5 and the vertical shaft 65 are located on the same side of the steel plate 10.

[0035] The starter motor drives the first disc 3 to rotate slowly, which in turn drives the second disc 8 to rotate synchronously.

[0036] The steel plate undergoes plastic bending under the pressure of the vertical axis 65, forming an arc shape with the same curvature as the second disk 8.

[0037] By changing the second disc 8 of different diameters, manhole rings of different radii can be processed.

[0038] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0039] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A bending processing mechanism for manhole rings of steel box girders, the processing mechanism comprising a processing table (1), characterized in that, A first disc (3) is rotatably provided above the processing table (1), and a number of first insertion holes (31) are provided on the first disc (3). A symmetrically distributed strip seat (4) is fixed above the processing table (1), and a number of second insertion holes (41) are provided on the strip seat (4). The processing mechanism also includes a second shaft pin (6) adapted to the first insertion hole (31) and a first shaft pin (5) adapted to the second insertion hole (41). The first disc (3) has a third shaft pin (7) fixed at its center. The processing mechanism also includes a second disc (8), on which a third insertion hole (81) adapted to the third shaft pin (7) is provided.

2. The bending processing mechanism for manhole rings of steel box girders according to claim 1, characterized in that, The bottom of the processing table (1) is equipped with an array of casters (2).

3. The bending processing mechanism for manhole rings of steel box girders according to claim 2, characterized in that, The second disk (8) has a different model.

4. The bending processing mechanism for manhole rings of steel box girders according to claim 3, characterized in that, The difference between different models of the second disc (8) lies in its diameter or the position of the third jack (81).

5. A bending processing mechanism for manhole rings of steel box girders according to claim 4, characterized in that, The strip seat (4) is connected to the processing table (1) by several bolts.

6. A bending processing mechanism for manhole rings of steel box girders according to claim 5, characterized in that, The processing table (1) is equipped with a motor for driving the first disc (3) to rotate.

7. A bending processing mechanism for manhole rings of steel box girders according to claim 6, characterized in that, The first insertion hole (31) is a non-circular hole. The second shaft pin (6) includes a plug (61) that is adapted to the first insertion hole (31). A strip block (62) is fixed above the plug block (61). A slide rail (63) is provided above the strip block (62). A sliding block (64) is slidably provided in the slide rail (63). A vertical shaft (65) is provided above the sliding block (64).

8. A bending processing mechanism for manhole rings of steel box girders according to claim 7, characterized in that, The vertical shaft (65) and the sliding block (64) are rotatably connected. When the insert (61) is inserted into the first insertion hole (31), the slide rail (63) faces the third shaft pin (7).

9. A bending processing mechanism for manhole rings of steel box girders according to claim 8, characterized in that, One end of the strip block (62) is fixed with a drive button (66), and a lead screw (67) adapted to the plug block (61) is fixed on the output shaft of the drive button (66).

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