Cold press forming device for arc-shaped bottom plate of steel box girder

Abstract

The utility model discloses a steel box girder arc bottom plate cold press forming device which comprises an upper die assembly, the upper die assembly comprises a top plate, a vertical plate, a plurality of first rib plates, a plurality of second rib plates, a convex die plate and a convex die wrapping plate, the lower surface of the top plate is fixedly connected with the vertical plate, and the outer walls of the two sides of the vertical plate are fixedly connected with the plurality of first rib plates. The lower surface of the vertical plate is fixedly connected with a plurality of second rib plates; according to the utility model, the upper die assembly is assembled and welded by adopting the plates, so that the production process is simplified, the manufacturing cost is obviously reduced, meanwhile, the requirement on high-end equipment is reduced, and the cost control is effectively realized; the adjustable design is adopted for the lower die assembly, the angles of the two transverse strips can be flexibly and synchronously adjusted according to requirements, it is ensured that the lower die assembly is perfectly matched with upper die assemblies of different specifications, the application range of cold press forming equipment is greatly widened through the characteristic, and the overall cost of the equipment is fundamentally reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cold pressing and forming, in particular to a cold pressing and forming device for an arc-shaped bottom plate of a steel box beam. Background Art

[0002] The curved bottom plate of the steel box girder is usually processed by cold forming technology, which relies on a hydraulic device to drive the punch and cooperate with the matching lower die to press the plate to form the desired shape. However, the molds used in the existing cold forming devices have the following defects: First, the mold is designed as an integrated structure, directly made of precision-machined metal ingots, resulting in high production costs; second, in order to match different punches, the corresponding lower die needs to be designed and manufactured separately, and this requirement further exacerbates the overall cost of cold forming equipment. Utility Model Content

[0003] The utility model aims to provide a cold-pressing forming device for an arc-shaped bottom plate of a steel box beam, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a cold pressing forming device for an arc-shaped bottom plate of a steel box girder, comprising an upper mold assembly, wherein the upper mold assembly comprises a top plate, a vertical plate, a first rib plate, a second rib plate, a male mold plate and a male mold cover plate, the lower surface of the top plate is fixedly connected with the vertical plate, a plurality of first rib plates are fixedly connected with the outer walls on both sides of the vertical plate, a plurality of second rib plates are fixedly connected with the lower surface of the vertical plate, and the second rib plates are spaced apart from the first rib plates, a plurality of male mold plates are arranged between two adjacent second rib plates, and the male mold plate is fixedly connected to the vertical plate, and the male mold cover plate is fixedly connected to the male mold plate and the lower surface of the second rib plate.

[0005] Preferably, a plurality of first mounting grooves are evenly distributed on the outer walls on both sides of the top plate.

[0006] Preferably, a through groove is formed on the upper surface of the second rib plate, and the vertical plate is fixedly connected in the through groove.

[0007] Preferably, a lower mold assembly is provided at the bottom end of the male mold package, and the lower mold assembly includes a base plate, a second mounting groove, a first support, a first connecting shaft, a knob, a worm, a worm wheel, a second connecting shaft, a second support, a support plate and a cross bar. Two first supports are fixedly connected to the upper surface of the base plate, and the first connecting shaft is rotatably connected to the first support, two worms are fixedly connected to the first connecting shaft, a worm wheel is meshingly connected to the worm, and a second connecting shaft is fixedly connected to the worm wheel, two second supports are installed on the second connecting shaft, and the second support is fixedly connected to the base plate, a cross bar is provided at the position of the bottom end of the male mold package corresponding to the second connecting shaft, a plurality of support plates are fixedly connected to the cross bar, and the support plates are fixedly connected to the second connecting shaft, and a support plate is provided on the upper surface of the base plate.

[0008] Preferably, one end of the first connecting shaft is fixedly connected with a knob.

[0009] Preferably, a plurality of second mounting grooves are evenly distributed on the outer walls on both sides of the substrate.

[0010] The utility model provides a steel box girder arc bottom plate cold press forming device, which has the following advantages: the upper mold assembly of the utility model is assembled and welded with sheet materials. This design not only simplifies the production process, but also significantly reduces the manufacturing cost, while reducing the demand for high-end equipment, and effectively realizing cost control; the lower mold assembly of the utility model adopts an adjustable design, which can flexibly adjust the angles of the two horizontal bars synchronously according to needs, ensuring perfect adaptation to upper mold assemblies of different specifications. This feature greatly broadens the application scope of the cold press forming equipment and fundamentally reduces the overall cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the upper mold assembly of the utility model;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the second rib plate of the utility model;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the lower mold assembly of the utility model.

[0016] In the figure: 1. upper mold assembly; 11. top plate; 12. first mounting groove; 13. vertical plate; 14. first rib plate; 15. second rib plate; 16. through groove; 17. convex mold plate; 18. convex mold package plate; 2. lower mold assembly; 21. base plate; 22. second mounting groove; 23. first support; 24. first connecting shaft; 25. knob; 26. worm; 27. worm wheel; 28. second connecting shaft; 29. ​​second support; 210. support plate; 211. horizontal bar. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4The utility model provides an embodiment: a cold press forming device for an arc-shaped bottom plate of a steel box beam, comprising an upper die assembly 1, the upper die assembly 1 comprising a top plate 11, a vertical plate 13, a first rib plate 14, a second rib plate 15, a convex die plate 17 and a convex die plate 18, the lower surface of the top plate 11 is fixedly connected with the vertical plate 13, a plurality of first rib plates 14 are fixedly connected to the outer walls on both sides of the vertical plate 13, a plurality of second rib plates 15 are fixedly connected to the lower surface of the vertical plate 13, and the second rib plates 15 are spaced apart from the first rib plates 14, a plurality of convex die plates 17 are arranged between two adjacent second rib plates 15, and the convex die plate 17 is fixedly connected to the vertical plate 13, and the convex die plate 18 is fixedly connected to the convex die plate 17 and the lower part of the second rib plate 15 The top plate 11 is used to connect with the hydraulic device, the vertical plate 13 is used to install the convex mold plate 17, the convex mold plate 17 is used to shape the convex mold package plate 18, and the convex mold plate 17 and the convex mold package plate 18 are used to cold press the plate; the outer walls on both sides of the top plate 11 are evenly distributed with a plurality of first mounting grooves 12, and the first mounting grooves 12 are used to install screws; the upper surface of the second rib plate 15 is provided with a through groove 16, and the vertical plate 13 is fixedly connected to the through groove 16, and the through groove 16 is used to accommodate the vertical plate 13; the bottom end of the convex mold package plate 18 is provided with a lower mold assembly 2, and the lower mold assembly 2 includes a base plate 21, a second mounting groove 22, a first support 23, a first connection The shaft 24, the knob 25, the worm 26, the worm wheel 27, the second connecting shaft 28, the second support 29, the support plate 210 and the cross bar 211, the upper surface of the base plate 21 is fixedly connected to two first supports 23, and the first connecting shaft 24 is rotatably connected to the first support 23, the first connecting shaft 24 is fixedly connected to two worms 26, the worm 26 is meshingly connected to the worm wheel 27, the worm wheel 27 is fixedly connected to the second connecting shaft 28, two second supports 29 are installed on the second connecting shaft 28, and the second support 29 is fixedly connected to the base plate 21, the bottom end of the convex mold package plate 18 is provided with a cross bar 211 at the position corresponding to the second connecting shaft 28, and a plurality of support plates 210 are fixedly connected to the cross bar 211, The support plate 210 is fixedly connected to the second connecting shaft 28, the support plate 210 is arranged on the upper surface of the base plate 21, the base plate 21 is used to connect the mold base, the first support 23 is used to install the first connecting shaft 24, the first connecting shaft 24 is used to install the worm 26, the worm 26 is used to drive the worm gear 27, the worm gear 27 is used to drive the second connecting shaft 28, the second support 29 is used to install the second connecting shaft 28, the cross bar 211 is used to support the plate, and the support plate 210 is used to support the cross bar 211; one end of the first connecting shaft 24 is fixedly connected with a knob 25, and the knob 25 is used to rotate the first connecting shaft 24; a plurality of second mounting grooves 22 are evenly distributed on the outer walls on both sides of the base plate 21, and the second mounting grooves 22 are used to install screws.

[0019] Working principle: When the utility model is used for cold-pressing of a plate, the plate is placed between the upper die assembly 1 and the lower die assembly 2, the hydraulic device is started, the upper die assembly 1 is driven downward, and the plate is extruded and formed by the convex die plate 18 in cooperation with the horizontal bar 211; wherein, the first rib plate 14 and the second rib plate 15 are used to enhance the strength of the vertical plate 13, the vertical plate 13 is used to install the convex die plate 17, the convex die plate 17 is used to shape the convex die plate 18, the top plate 11 is used to connect with the hydraulic device, the first mounting groove 12 is used to install screws, and the through groove 16 is used to accommodate the vertical plate 13; when the replacement is not After the upper mold assembly 1 of the same model is installed, the lower mold assembly 2 can be adjusted to adapt to the punch plate 18 of the upper mold assembly 1. The specific method is: turn the knob 25 to drive the first connecting shaft 24 to rotate on the first support 23. The first connecting shaft 24 drives the worm gear 27 through the worm 26. The worm gear 27 rotates in the opposite direction to drive the second connecting shaft 28 to rotate on the second support 29. The second connecting shaft 28 drives the support plate 210 to adjust the angle of the horizontal bar 211 to adapt to the punch plate 18. Among them, the base plate 21 is used to connect the mold base, and the second mounting groove 22 is used to install screws.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A cold forming device for a curved bottom plate of a steel box beam, comprising an upper die assembly (1), characterized in that: The upper mold assembly (1) comprises a top plate (11), a vertical plate (13), a first rib plate (14), a second rib plate (15), a convex mold plate (17) and a convex mold cover plate (18); the top plate (11) is fixedly connected to the lower surface of the top plate (11); a plurality of first rib plates (14) are fixedly connected to the outer walls of both sides of the vertical plate (13); a plurality of second rib plates (15) are fixedly connected to the lower surface of the vertical plate (13); the second rib plates (15) are spaced apart from the first rib plates (14); a plurality of convex mold plates (17) are arranged between two adjacent second rib plates (15); the convex mold plates (17) are fixedly connected to the vertical plate (13); and the convex mold cover plate (18) is fixedly connected to the convex mold plate (17) and the lower surface of the second rib plates (15).

2. The cold-pressing forming device for the curved bottom plate of a steel box beam according to claim 1, characterized in that: A plurality of first installation grooves (12) are evenly distributed on the outer walls on both sides of the top plate (11).

3. The cold-pressing forming device for the curved bottom plate of a steel box beam according to claim 1, characterized in that: A through groove (16) is provided on the upper surface of the second rib plate (15), and the vertical plate (13) is fixedly connected in the through groove (16).

4. The cold-pressing forming device for the curved bottom plate of a steel box beam according to claim 1, characterized in that: A lower mold assembly (2) is disposed at the bottom end of the male mold package plate (18), the lower mold assembly (2) comprising a base plate (21), a second mounting groove (22), a first support (23), a first connecting shaft (24), a knob (25), a worm (26), a worm wheel (27), a second connecting shaft (28), a second support (29), a support plate (210) and a horizontal bar (211), the upper surface of the base plate (21) being fixedly connected to two first supports (23), the first connecting shaft (24) being rotatably connected to the first support (23), and the first connecting shaft (24) being fixedly connected to two worms ( 26), a worm wheel (27) is meshingly connected to the worm (26), a second connecting shaft (28) is fixedly connected to the worm wheel (27), two second supports (29) are installed on the second connecting shaft (28), and the second supports (29) are fixedly connected to the base plate (21), a horizontal bar (211) is arranged at a position corresponding to the second connecting shaft (28) at the bottom end of the male mold package plate (18), a plurality of support plates (210) are fixedly connected to the horizontal bar (211), and the support plates (210) are fixedly connected to the second connecting shaft (28), and the support plates (210) are arranged on the upper surface of the base plate (21).

5. The cold-pressing forming device for the curved bottom plate of a steel box beam according to claim 4, characterized in that: One end of the first connecting shaft (24) is fixedly connected to a knob (25).

6. The cold-pressing forming device for the curved bottom plate of a steel box beam according to claim 4, characterized in that: A plurality of second installation grooves (22) are evenly distributed on the outer walls on both sides of the base plate (21).

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