Assembling tool, system and method for prestressed pipeline positioning meshes of box girder

Abstract

The invention relates to the field of track box girder steel bar machining, in particular to an assembling tool, system and method for a prestressed pipeline positioning mesh of a box girder, the assembling tool comprises a bottom plate placing area and web placing areas on the two sides, and a bottom plate mesh and web meshes can be placed in the bottom plate placing area and the two web placing areas respectively; first convex edges are distributed between the two web placing areas at intervals, first limiting grooves are formed in the first convex edges, and second web steel bars can be placed in the first limiting grooves to be positioned in the X direction; a plurality of positioning frames are arranged in the two web placing areas, movable positioning blocks can be inserted into the positioning frames, second limiting grooves are formed in the movable positioning blocks, and first web steel bars can be placed in the second limiting grooves for Y-direction positioning. According to the positioning tool, the multiple positioning frames can be arranged to correspond to the relative positions of the prestressed pipeline positioning holes of the web meshes in the positioning meshes needing to be assembled, limiting is conducted through the limiting grooves, and the positioning precision and the mesh assembling efficiency are improved.

Description

Technical Field

[0001] The invention relates to the field of rail box girder steel bar processing, and in particular to an assembling tool, system and method for a prestressed pipe positioning mesh of a box girder. Background Art

[0002] In the prefabrication construction of prestressed simply supported box girders, the current manufacturing process of the prestressed pipe positioning mesh is to process the bottom plate mesh and the web plate mesh separately, and then manually assemble and weld the bottom plate mesh and the web plate mesh. In order to make the force of the beam span meet the use requirements, it is usually necessary to set the direction of the prestressed pipe buried in the web of the beam body from the beam end to the center of the beam span to be inclined downward along the web of the box girder, that is, the layout of the prestressed pipe along the longitudinal direction of the beam body is similar to the bending moment diagram of the simply supported beam under uniform load. In this way, the relative positions of the web plate mesh and the bottom plate mesh on the multiple positioning meshes for fixing the prestressed pipes arranged at intervals along the length direction of the beam span are all different. Therefore, positioning and assembly are required when welding between the web plate mesh and the bottom plate mesh of each positioning mesh.

[0003] The current manual assembly method is to mark the position of each type of web mesh relative to the bottom mesh by engraving marking lines, welding positioning steel bars, etc. on the operating table, and then manually align the marks during assembly. This manual assembly method is difficult to control the assembly accuracy, and the relative position between the web mesh and the bottom mesh cannot be fixed, which is prone to offset and leads to large positioning errors. Summary of the invention

[0004] The purpose of the present invention is to overcome the technical problem that the web mesh is easily offset and causes large positioning errors when positioned by manual marking or the like in the prior art, and to provide an assembly tool, system and method for the prestressed pipe positioning mesh of a box girder.

[0005] In a first aspect, the present invention provides an assembly tool for a prestressed pipe positioning mesh of a box girder, the positioning mesh comprising a bottom plate mesh and two web plate meshes, the two web plate meshes can be assembled on both sides of the bottom plate mesh, respectively, a plurality of pipe positioning holes are formed on the web plate mesh for passing the prestressed pipe, the web plate mesh comprises a first web plate steel bar and a second web plate steel bar which are cross-arranged; the assembly tool comprises a bottom plate placement area, a first web plate placement area, a second web plate placement area and a movable positioning block, the first web plate placement area and the second web plate placement area are arranged on both sides of the bottom plate placement area, the bottom plate mesh can be placed in the bottom plate placement area, the two web plate meshes can be placed in the first web plate placement area, respectively A web placement area and a second web placement area; the first web placement area and the second web placement area are both provided with a plurality of first ridges spaced apart along the Y direction, the first ridge is provided with at least one first limiting groove, the second web reinforcement can be placed in the first limiting groove to position the web mesh in the X direction; the first web placement area and the second web placement area are both provided with a plurality of positioning frames, the movable positioning block can be selectively inserted into any one of the positioning frames to correspond to the assembly position of the pipe positioning hole of the web mesh relative to the bottom plate mesh, the movable positioning block is provided with a second limiting groove, the first web reinforcement can be placed in the second limiting groove to position the web mesh in the Y direction.

[0006] Compared with the prior art that determines the relative position of the web mesh and the bottom plate mesh by manual marking, which is prone to large errors, the present application can set a first ridge in the web placement area of ​​the tooling and open a first limiting groove, so that the second web reinforcement of the web mesh can be placed in the first limiting groove for X-axis (i.e. Figure 1 The web plate placement area can be used for positioning, and multiple positioning frames can be set in the web plate placement area. The position of each positioning frame corresponds to the relative position of one of the first web plate steel bars of the web plate mesh in each positioning mesh to be assembled. The movable positioning block can be inserted into the corresponding positioning frame, and then the first web plate steel bar can be placed in the second limiting groove on the movable positioning block for Y direction (i.e. Figure 1 The web mesh can be stably placed in the first limiting groove and the second limiting groove to realize positioning in the X direction and the Y direction at the same time. The limiting effect of the first limiting groove and the second limiting groove can be used to avoid the web mesh from shifting, thereby improving the positioning accuracy. In addition, the web mesh can be directly placed in the limiting groove of the movable positioning block at the corresponding position for positioning, thereby avoiding positioning by manual marking, and also avoiding the need for manual alignment and positioning every time, thereby improving the assembly efficiency.

[0007] Preferably, the diameter of the second web steel bar is obtained by subtracting the bottom elevation of the second limiting groove from the bottom elevation of the first limiting groove on the first ridge in the first web placement area, and the diameter of the first web steel bar is obtained by subtracting the bottom elevation of the second limiting groove from the bottom elevation of the first limiting groove on the first ridge in the second web placement area.

[0008] Preferably, the diameter of the second web steel bar is obtained by subtracting the bottom elevation of the second limit groove from the bottom elevation of the first limit groove on the first ridge in the second web placement area, and the diameter of the first web steel bar is obtained by subtracting the bottom elevation of the second limit groove from the bottom elevation of the first limit groove on the first ridge in the first web placement area.

[0009] Since the operating table is a horizontal plane, and both the bottom plate mesh and the web plate mesh are welded by intersecting steel bars, the steel bars in different directions are located at planes of different heights, and the bottom plate mesh will also be overlapped on or below the web plate mesh for assembly, and are not on the same horizontal plane. If placed directly on the operating table, the mesh will cause the mesh to tilt and cannot remain horizontal, and the steel bars at the assembly welding points will not be able to stick together, affecting the welding quality.

[0010] The present invention can set the bottom elevation of the first limiting groove of the first ridge of the web placement area (the first web placement area or the second web placement area) on one side to be lower than the bottom elevation of the second limiting groove on the movable positioning block, and the difference between the two elevations is the distance of the diameter of a second web steel bar. When the web mesh is arranged with the second web steel bar at the bottom and the first web steel bar at the top, after the web mesh is installed on the first ridge and the movable positioning block of the web placement area on that side, the web mesh can be kept horizontal as a whole. Similarly, The bottom elevation of the first limiting groove of the first ridge of the web placement area on the other side (the second web placement area or the first web placement area) is set to be higher than the bottom elevation of the second limiting groove on the movable positioning block, and the difference between the two elevations is the diameter of a first web steel bar. After turning the same web mesh upside down, the second web steel bar can be placed on the top and the first web steel bar on the bottom. After the web mesh is installed on the first ridge and the movable positioning block of the web placement area on this side, the web mesh can also be kept level as a whole.

[0011] Preferably, the first convex edge of the first web placement area or the second web placement area is further provided with a first horizontal placement surface, and the elevation of the first horizontal placement surface is consistent with the elevation of the bottom of the first limiting groove.

[0012] The elevation of the first horizontal placement surface is consistent with the elevation of the bottom of the first limiting groove, so that one of the second web steel bars on the web mesh can be placed in the first limiting groove, and the remaining second web steel bars can be placed on the first horizontal placement surface. As a result, all the second web steel bars on the web mesh can be located on the horizontal plane at the same height, so that the web mesh can be kept horizontally placed as a whole.

[0013] Preferably, the bottom plate mesh includes a first bottom plate steel bar and a second bottom plate steel bar; the bottom plate placement area is provided with a plurality of second ridges spaced apart along the X direction, at least two of the plurality of second ridges are provided with a third limiting groove, and the first bottom plate steel bar can be placed in the third limiting groove to position the bottom plate mesh in the Y direction.

[0014] A plurality of second convex edges can be arranged in the bottom plate placement area, and a third limiting groove can be opened on the second convex edge, and the first bottom plate steel bar on the bottom plate mesh can be placed in the third limiting groove, and the limiting effect of the third limiting groove can be used to perform Y-direction (i.e. Figure 1 The Y-axis direction in the image is used for positioning.

[0015] Preferably, at least two of the second convex edges with the third limiting grooves are further provided with a second horizontal placement surface, and the elevation of the second horizontal placement surface is consistent with the elevation of the bottom of the third limiting groove.

[0016] The elevation of the second horizontal placement surface is consistent with the elevation of the bottom of the third limiting groove, so that one or more of the first bottom plate steel bars on the bottom plate mesh can be placed in the third limiting groove, and the remaining first bottom plate steel bars can be placed on the second horizontal placement surface, so that all the first bottom plate steel bars on the bottom plate mesh can be located on the horizontal plane at the same height, so that the bottom plate mesh can be kept horizontally placed as a whole.

[0017] Preferably, the bottom plate placement area is provided with a third ridge, the third ridge is provided with a fourth limiting groove, and the second bottom plate steel bar can be placed in the fourth limiting groove to position the bottom plate mesh in the X direction.

[0018] One or more third ridges can be arranged in the bottom plate placement area, and a fourth limiting groove can be opened on the third ridge. The second bottom plate steel bar on the bottom plate mesh can be placed in the fourth limiting groove, and the limiting effect of the fourth limiting groove can be used to perform X-direction (i.e. Figure 1 (in the X-axis direction) positioning.

[0019] Preferably, the third convex ridge is further provided with a third horizontal placement surface, and the elevation of the third horizontal placement surface is consistent with the elevation of the bottom of the fourth limiting groove.

[0020] The elevation of the third horizontal placement surface is consistent with the elevation of the bottom of the fourth limiting groove, so that one or more of the second bottom plate steel bars on the bottom plate mesh can be placed in the fourth limiting groove, and the remaining second bottom plate steel bars can be placed on the third horizontal placement surface, so that all the second bottom plate steel bars on the bottom plate mesh can be located on the horizontal plane at the same height, so that the bottom plate mesh can be kept horizontally placed as a whole.

[0021] Preferably, each of the positioning frames is marked with the number of the corresponding positioning mesh.

[0022] The number of the corresponding positioning mesh installed in the box beam can be marked on or beside each positioning frame, so that the positioning frame corresponding to the positioning mesh to be assembled can be found more conveniently before assembly, which can further improve the assembly efficiency.

[0023] In a second aspect, the present invention provides an assembly system for a prestressed pipe positioning mesh for a box girder, comprising an assembly tool for the prestressed pipe positioning mesh for a box girder as described above; and also comprising a welding machine, the welding machine comprising a mechanical arm and a welding head mounted on the mechanical arm.

[0024] The assembly system of the prestressed pipe positioning mesh of the box girder of the present invention may include the above-mentioned assembly tooling, which can be used to assemble the web mesh and the bottom plate mesh, and sufficient positioning accuracy can be achieved. Then, a robot welder can be used to automatically weld the connection points between the web mesh and the bottom plate mesh, which can further improve the overall assembly and welding efficiency.

[0025] In a third aspect, the present invention provides a method for positioning a prestressed pipe of a box girder, using the assembly tooling for the prestressed pipe positioning mesh of the box girder or the assembly system for the prestressed pipe positioning mesh of the box girder as described above, comprising: S1: finding the corresponding positioning frame according to the serial number of the positioning mesh to be assembled, and inserting the two movable positioning blocks into the positioning frames corresponding to the first web placement area and the second web placement area respectively; S2: horizontally placing the web mesh assembled below the bottom plate mesh in the first web placement area or the second web placement area, so that the corresponding second web steel bar on the web mesh is inserted into the first limiting groove, and the corresponding first web steel bar on the web mesh is inserted into the second limiting groove; S3: horizontally placing the bottom plate mesh in the bottom plate placement area, so that the first bottom plate mesh is The plate reinforcement is inserted into the third limiting groove, so that the second bottom plate reinforcement is inserted into the fourth limiting groove; S4: the web mesh assembled above the bottom plate mesh is horizontally placed in the second web placement area or the first web placement area, so that the corresponding second web reinforcement on the web mesh is inserted into the first limiting groove, and the corresponding first web reinforcement on the web mesh is inserted into the second limiting groove; S5: welding is performed at the connection between the bottom plate mesh and the web mesh, and the bottom plate mesh and the web mesh are welded to form the positioning mesh; S6: repeat S1 to S5 to complete the assembly and welding of each positioning mesh in the box girder; S7: each positioning mesh is installed at the corresponding position in the box girder; S8: the prestressed pipe is passed through the pipe positioning hole on each positioning mesh in the box girder.

[0026] The positioning method of the prestressed pipe of the box girder of the present invention can utilize the structures such as the convex ridges, movable positioning blocks and limit grooves on the assembly tooling, and can directly place the web steel bars or the bottom plate steel bars in the corresponding limit grooves, so as to realize the positioning assembly between the web mesh and the bottom plate mesh. The assembly process is simple and efficient, no manual marking and positioning are required, and the positioning accuracy is high.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention provides an assembly tool for a prestressed pipe positioning mesh of a box beam, wherein a first convex ridge can be arranged in a web placement area of ​​the tool, and a first limiting groove can be provided, and a second web reinforcement of the web mesh can be placed in the first limiting groove for X-direction (i.e. Figure 1 The web plate placement area can be used for positioning, and multiple positioning frames can be set in the web plate placement area. The position of each positioning frame corresponds to the relative position of one of the first web plate steel bars of the web plate mesh in each positioning mesh to be assembled. The movable positioning block can be inserted into the corresponding positioning frame, and then the first web plate steel bar can be placed in the second limiting groove on the movable positioning block for Y direction (i.e. Figure 1The web plate mesh can be stably placed in the first limiting groove and the second limiting groove to achieve positioning in the X direction and the Y direction at the same time. The limiting effect of the first limiting groove and the second limiting groove can be used to avoid the web plate mesh from being offset, thereby improving the positioning accuracy. In addition, the web plate mesh can be directly placed in the limiting groove of the movable positioning block at the corresponding position for positioning, thereby avoiding the need for manual marking and positioning each time, thereby improving the assembly efficiency.

[0029] 2. The present invention provides an assembly system for prestressed pipe positioning meshes of a box girder, which can be used to assemble web meshes and bottom plate meshes, so as to fix the connection points between the meshes in space, and has the characteristics of high positioning accuracy. Furthermore, a robot welder can be used to automatically weld the connection points between the web meshes and the bottom plate meshes, which can further improve the overall assembly and welding efficiency;

[0030] 3. The present invention provides a method for positioning the prestressed pipe of a box girder, which can utilize structures such as convex edges, movable positioning blocks and limit grooves on the assembly tooling, and can directly place the web steel bars or the bottom plate steel bars in the corresponding limit grooves, thereby realizing the positioning and assembly between the web mesh and the bottom plate mesh. The assembly process is simple and efficient, and no manual marking and positioning are required, and the positioning accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of an assembly tool for the prestressed pipe positioning mesh of the box beam of the present invention.

[0032] Figure 2 Schematic diagram of the placement of single-sided web mesh and bottom plate mesh on the tooling.

[0033] Figure 3 It is a schematic diagram of the first structure of the first ridge (located in the web placement area on one side).

[0034] Figure 4 Schematic diagram of the second structure of the first ridge (located in the web placement area on the other side).

[0035] Figure 5 A three-dimensional diagram of the movable positioning block.

[0036] Figure 6 A three-dimensional diagram of the positioning frame.

[0037] Figure 7 This is a schematic diagram of the first structure of a second convex ridge with a third limiting groove.

[0038] Figure 8 It is a schematic diagram of the second structure of the second convex ridge with the third limiting groove.

[0039] Fig. 9It is a schematic diagram of a third convex ridge with a fourth limiting groove.

[0040] Fig.10 Schematic diagram of the location of the positioning mesh of the prestressed pipe in the middle of the beam span.

[0041] Markings in the figure:

[0042] 1. First web placement area, 11. First convex rib, 111. First limiting groove, 112. First horizontal placement surface, 12. Positioning frame, 13. Movable positioning block, 131. Second limiting groove, 2. Second web placement area, 3. Bottom plate placement area, 31. Second convex rib, 311. Third limiting groove, 312. Second horizontal placement surface, 32. Third convex rib, 321. Fourth limiting groove, 322. Third horizontal placement surface, 4. Web mesh, 41. First web reinforcement, 42. Second web reinforcement, 43. Pipeline positioning hole, 5. Bottom plate mesh, 51. First bottom plate reinforcement, 52. Second bottom plate reinforcement, 6. Positioning mesh, 7. Prestressed pipe. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0044] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0045] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0046] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0047] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0048] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0049] Example 1

[0050] This embodiment provides an assembly tool for a prestressed pipe positioning mesh of a box girder.

[0051] Figure 1 It is a schematic diagram of an assembly tool for the prestressed pipe positioning mesh of the box beam of the present invention; Figure 2 It is a schematic diagram of placing a single-side web mesh and a bottom plate mesh on a tooling; Figure 3 Schematic diagram of the first structure of the first ridge (located in the web placement area on one side); Figure 4 is a schematic diagram of the second structure of the first convex edge (located in the web placement area on the other side); Figure 5A three-dimensional diagram of a movable positioning block; Figure 6 A stereogram of a positioning frame; Figure 7 A schematic diagram of a first structure of a second convex edge with a third limiting groove; Figure 8 A schematic diagram of a second structure of a second convex edge with a third limiting groove; Fig. 9 It is a schematic diagram of a third convex ridge with a fourth limiting groove.

[0052] like Figures 1 to 9 As shown in , the assembly tooling of the prestressed pipe positioning mesh of the box girder described in this embodiment may include a bottom plate placement area 3, a first web plate placement area 1, a second web plate placement area 2 and a movable positioning block 13, and the first web plate placement area 1 and the second web plate placement area 2 may be arranged on both sides of the bottom plate placement area 3. Specifically, the bottom plate placement area 3, the first web plate placement area 1 and the second web plate placement area 2 may be formed as an integral structure of the tooling, and the surface area of ​​the side of the tooling in contact with the positioning mesh 6 may be at least larger than the area covered by the positioning mesh 6. Preferably, the shape of the mounting surface of the positioning mesh 6 on the tooling may be consistent with the shape of the cross section of the box girder, that is, the first web plate placement area 1 and the second web plate placement area 2 may be symmetrically arranged on both sides of the bottom plate placement area 3.

[0053] Typically, the positioning mesh 6 may include a bottom plate mesh 5 and two web plate meshes 4, the two web plate meshes 4 may be respectively connected to the two sides of the bottom plate mesh 5 and symmetrically arranged, the web plate mesh 4 may include a plurality of first web plate steel bars 41 and second web plate steel bars 42 that are cross-arranged, a plurality of pipeline positioning holes 43 are formed in the web plate mesh 4 and the bottom plate mesh 5, the pipeline positioning holes 43 may be formed by mutually crossing steel bars, and the prestressed pipeline may be passed through the pipeline positioning holes 43 for positioning; the bottom plate mesh 5 may be placed in the bottom plate placement area 3 and fixed in the bottom plate placement area 3, and the two web plate meshes 4 may be respectively placed in the first web plate placement area 1 and the second web plate placement area 2 and fixed.

[0054] The plurality of first web steel bars 41 and second web steel bars 42 cross-arranged in the web mesh 4 can enclose and form a pipeline positioning hole 43, and the prestressed pipe 7 can pass through the pipeline positioning holes 43 on the plurality of positioning meshes 6 arranged at intervals in the box girder. Since the penetration path of the prestressed pipe 7 in the web of the box girder has a certain slope or curvature in the horizontal or vertical direction, the relative positions of the web mesh 4 and the bottom plate mesh 5 on each positioning mesh 6 are different, that is, the pipeline positioning holes 43 of the web mesh 4 of each positioning mesh 6 are different. The positions of the positioning holes 43 relative to the bottom plate mesh 5 are all different; in addition, it should be noted that the specific structural form of the bottom plate mesh 5 may also change. Therefore, for the relative position between the pipe positioning hole 43 of the web mesh 4 and the bottom plate mesh 5, the first bottom plate steel bar 51 on the bottom plate mesh 5 that is farthest from the web mesh 4 can be used as a reference. The distances between the pipe positioning hole 43 of the web mesh 4 of different types of positioning meshes 6 and the first bottom plate steel bar 51 on the bottom plate mesh 5 that is farthest from the web mesh 4 are different.

[0055] The first web placement area 1 and the second web placement area 2 are both along the Y direction (i.e. Figure 1 In the Y-axis direction of the web, a plurality of first ribs 11 are arranged at intervals. Specifically, three first ribs 11 are arranged in the first web placement area 1 and the second web placement area 2, respectively. At least one first limiting groove 111 is provided on the first rib 11. For example, a first limiting groove 111 can be provided on each first rib 11, and the second web reinforcement 42 can be placed in the first limiting groove 111, so that the web mesh 4 can be moved in the X direction (i.e. Figure 1 Here, the number of first ribs 11 provided in the web placement areas on both sides and the number of first limiting grooves 111 provided on the first ribs 11 can be selected according to actual needs, and the present invention does not make specific limitations on this; it should be noted that, if two or more first limiting grooves 111 are provided on the first rib 11, the spacing between two adjacent first limiting grooves 111 must be consistent with the spacing between two adjacent second web reinforcements 42 on the web mesh 4.

[0056] A plurality of positioning frames 12 are arranged in the first web placement area 1 and the second web placement area 2 at intervals. Specifically, the number of positioning frames 12 in each web placement area can be 28, and the movable positioning block 13 can be selectively inserted into any one of the positioning frames 12, so as to correspond to the assembly position of the web mesh 4 relative to the bottom plate mesh 5; a second limiting groove 131 can be provided on the movable positioning block 13, and the first web reinforcement 41 can be placed in the second limiting groove 131, so that the web mesh 4 can be Y-axis (i.e. Figure 1Here, the number of positioning frames 12 in the web placement area can be consistent with the number of types of positioning meshes 6 to be installed in the span of the box girder. If the number of types of positioning meshes 6 installed in the span of the beam changes, the number of positioning frames 12 in the web placement area also needs to be selected accordingly to meet the requirement that each type of positioning mesh 6 can be assembled by the same tooling. The present invention does not make specific limitations on this.

[0057] In this embodiment, since the web meshes 4 on both sides can be made of the same fetal membrane, when assembling on the tooling, the web meshes 4 can be directly turned upside down and assembled on both sides of the bottom plate mesh 5 as a symmetrical structure. In order to enable the web meshes 4 on both sides to be placed horizontally, the sizes of the first ridges 11 set in the web placement areas on both sides will be different.

[0058] Specifically, if the web mesh 4 placed in the first web placement area 1 is arranged with the second web reinforcement 42 at the bottom and the first web reinforcement 41 at the top, the bottom elevation of the first limiting groove 111 of the first ridge 11 in the first web placement area 1 needs to be set to be lower than the bottom elevation of the second limiting groove 131 on the movable positioning block 13, and the difference between the two elevations is the distance of the diameter of a second web reinforcement 42. In this way, after the web mesh 4 is installed on the first ridge 11 and the movable positioning block 13 in the first web placement area 1, the web mesh 4 can be kept level as a whole.

[0059] Correspondingly, after turning the web mesh 4 with the same structure as that in the first web placement area 1 upside down, it can be placed in the second web placement area 2 on the other side, so that the web mesh 4 is turned so that the second web reinforcement 42 is placed on the top and the first web reinforcement 41 is placed on the bottom, and the bottom elevation of the first limiting groove 111 of the first ridge 11 in the second web placement area 2 needs to be set to be higher than the bottom elevation of the second limiting groove 131 on the movable positioning block 13, and the difference between the two elevations is the distance of the diameter of a first web reinforcement 41. After the web mesh 4 is installed on the first ridge 11 and the movable positioning block 13 in the second web placement area 2, the web mesh 4 can be kept level as a whole.

[0060] Similarly, if the web mesh 4 placed in the first web placement area 1 is arranged with the second web reinforcement 42 on the top and the first web reinforcement 41 on the bottom, the bottom elevation of the first limiting groove 111 of the first ridge 11 in the first web placement area 1 needs to be set higher than the bottom elevation of the second limiting groove 131 on the movable positioning block 13, and the difference between the two elevations is the diameter of a first web reinforcement 41. After the web mesh 4 is installed on the first ridge 11 and the movable positioning block 13 in the second web placement area 2, the web mesh 4 can be kept level as a whole.

[0061] Correspondingly, after turning the web mesh 4 with the same structure as that in the first web placement area 1 upside down, it can be placed in the second web placement area 2 on the other side, so that the web mesh 4 is turned so that the second web reinforcement 42 is at the bottom and the first web reinforcement 41 is at the top, and the bottom elevation of the first limiting groove 111 of the first ridge 11 in the second web placement area 2 needs to be set to be higher than the bottom elevation of the second limiting groove 131 on the movable positioning block 13, and the difference between the two elevations is the distance of the diameter of a second web reinforcement 42. After the web mesh 4 is installed on the first ridge 11 and the movable positioning block 13 in the second web placement area 2, the web mesh 4 can be kept level as a whole.

[0062] In this embodiment, the first ridge 11 of the first web placement area 1 or the second web placement area 2 may also be provided with a first horizontal placement surface 112, and the elevation of the first horizontal placement surface 112 may be consistent with the elevation of the bottom of the first limiting groove 111. Specifically, for example Figure 3 In the figure, the elevation of the first horizontal placement surface 112 and the elevation of the bottom of the first limiting groove 111 can be set to h1, h1 = 30 mm, so that one of the second web reinforcement bars 42 on the web mesh 4 can be placed in the first limiting groove 111, and the remaining second web reinforcement bars 42 can be placed on the first horizontal placement surface 112, so that all the second web reinforcement bars 42 on the web mesh 4 can be located on the horizontal plane with an elevation of 30 mm, so that the web mesh 4 can be kept horizontally placed as a whole. Of course, the elevation of the first horizontal placement surface 112 and the elevation of the bottom of the first limiting groove 111 need to be determined according to the actual height of the web mesh 4 and the bottom plate mesh 5 after assembly, and may also be other height dimensions, and the present invention does not make specific limitations on this.

[0063] If the elevation of the first horizontal placement surface 112 of the first ridge 11 of the first web placement area 1 or the second web placement area 2 is consistent with the elevation of the bottom of the first limiting groove 111, then there will be a difference between the elevation of the horizontal placement surface of the first ridge 11 of the web placement area on the other side and the elevation of the bottom of the limiting groove. The two need to differ by at least the diameter of the first web reinforcement 41 so that after the flipped web mesh 4 is erected on the first ridge 11, the second web reinforcement 42 can be inserted into the limiting groove of the first ridge 11 for X-axis positioning, for example Figure 4 In the figure, the elevation of the horizontal placement surface on the left is h2, h2=30mm, and the elevation of the bottom of the limit groove on the right is h3, h3=50mm (the groove depth is 10mm, and the steel bar diameter is also 10mm). The difference between the two elevations is 20mm, that is, h3-h2=20mm, which is 10mm larger than the steel bar diameter. The minimum difference between the two elevations is 10mm.

[0064] In this embodiment, the bottom plate mesh 5 may include a first bottom plate steel bar 51 and a second bottom plate steel bar 52. Specifically, the first bottom plate steel bar 51 and the second bottom plate steel bar 52 may be cross-arranged. Preferably, the first bottom plate steel bar 51 and the second bottom plate steel bar 52 are arranged perpendicular to each other. The bottom plate placement area 3 is provided with a plurality of second ridges 31 spaced apart in the X direction, and at least two of the plurality of second ridges 31 are provided with a third limiting groove 311. The first bottom plate steel bar 51 may be placed in the third limiting groove 311, so that the bottom plate mesh 5 may be positioned in the Y direction. For example Figure 1 As shown in the figure, four second ridges 31 are provided with third limiting grooves 311, but the present invention is not limited to this. The number of second ridges 31 provided with third limiting grooves 311 and the number of third limiting grooves 311 on each second ridge 31 can also be selected according to actual conditions, and the present invention does not make specific limitations on this.

[0065] At least one of the second convex ridges 31 with the third limiting groove 311 may also be provided with a second horizontal placement surface 312, and the elevation of the second horizontal placement surface 312 may be consistent with the elevation of the bottom of the third limiting groove 311, so that one or more of the first bottom plate steel bars 51 on the bottom plate mesh 5 can be placed in the third limiting groove 311, and the remaining first bottom plate steel bars 51 can be placed on the second horizontal placement surface 312, so that all the first bottom plate steel bars 51 on the bottom plate mesh 5 are located on the horizontal plane of the same height, so that the bottom plate mesh 5 can be kept horizontally placed as a whole. For example, Figure 7 As shown in the figure, the structure of the first type of the second convex ridge 31, the elevation of the second horizontal placement surface 312 on the right and the elevation of the bottom of the third limiting groove 311 on the left are both h4, h4=40mm (groove depth 10mm, corresponding to a steel bar with a diameter of 10mm), of course, the elevation of the second horizontal placement surface 312 and the elevation of the bottom of the third limiting groove 311 need to be determined based on the actual height after the web mesh 4 and the bottom plate mesh 5 are assembled, and may also be other height dimensions, and the present invention does not make specific limitations on this.

[0066] Of course, there is also a second structure of the second ridge 31, such as Figure 8As shown in , the second ridge 31 of the structure can be arranged in the area where the bottom plate mesh 5 and the web mesh 4 intersect, and the bottom elevation of the third limiting groove 311 on the left side can also be h4, h4=40mm, which is the same as the bottom elevation of the third limiting groove 311 of the first second ridge 31. The elevation of the second horizontal placement surface 312 on the right side is h5, h5=30mm, h4-h5=10mm, that is, the second web reinforcement 42 can be placed on the second horizontal placement surface 312 first. If the diameter of the second web reinforcement 42 is 10mm, the top elevation of the second web reinforcement 42 is h5+10mm=40mm, which is consistent with the bottom elevation of the third limiting groove 311 on the left side. After one of the first bottom plate reinforcements 51 on the bottom plate mesh 5 is placed in the third limiting groove 311, the remaining first bottom plate reinforcements 51 can be erected on the second web reinforcement 42 on the right side and keep the overall level.

[0067] In this embodiment, the bottom plate placement area 3 may be provided with two third ridges 32, one of which may be provided between two adjacent second ridges 31, and the other third ridge 32 may be provided between two other adjacent second ridges 31, and the third ridge 32 may be provided with a fourth limiting groove 321, and the second bottom plate steel bar 52 may be placed in the fourth limiting groove 321 to position the bottom plate mesh 5 in the X direction; the second bottom plate steel bar 52 on the bottom plate mesh 5 may be placed in the fourth limiting groove 321, and the limiting effect of the fourth limiting groove 321 may be used to perform X-direction (i.e. Figure 1 but the present invention is not limited thereto, the number of the third ridges 32 and the number of the fourth limiting grooves 321 provided on each third ridge 32 may also be selected according to actual conditions, and the present invention does not make specific limitations on this.

[0068] The third convex ridge 32 also has a third horizontal placement surface 322, the elevation of which is consistent with the elevation of the bottom of the fourth limiting groove 321; one or more second bottom plate steel bars 52 on the bottom plate mesh 5 can be placed in the fourth limiting groove 321, while the remaining second bottom plate steel bars 52 can be placed on the third horizontal placement surface 322, so that all the second bottom plate steel bars 52 on the bottom plate mesh 5 are located on the same height horizontal plane, so that the bottom plate mesh 5 can be kept horizontally placed as a whole. For example, Fig. 9 As shown in the figure, the elevation of the third horizontal placement surface 322 on the left and right sides and the elevation of the bottom of the fourth limiting groove 321 in the middle are both h6, h6=30mm (groove depth 10mm). Of course, the elevation of the third horizontal placement surface 322 and the elevation of the bottom of the fourth limiting groove 321 need to be determined based on the actual height after the web mesh 4 and the bottom plate mesh 5 are assembled, and may also be other height dimensions, and the present invention does not make specific limitations on this.

[0069] In addition, a first ridge 11 is provided in the first web placement area 1 and the second web placement area 2, and a second ridge 31 is provided in the bottom plate placement area 3. Each ridge can prevent tooling deformation to a certain extent and can support the tooling structure to prevent tooling deformation.

[0070] The spacing between the first limiting groove 111 on the first ridge 11 and the first horizontal placement surface 112 should be smaller than the distance between two adjacent first web reinforcements 41 on the web mesh 4 in the X direction, and the spacing between the first limiting groove 111 and the end of the nearest first ridge 11 should also be smaller than the distance between two adjacent first web reinforcements 41 on the web mesh 4 in the X direction, so as to avoid interference between the web mesh 4 and the first ridge 11 after being placed on the first ridge 11.

[0071] In this embodiment, each positioning frame 12 is marked with the number of the corresponding positioning mesh 6 (not shown in the figure).

[0072] The number of the corresponding positioning mesh 6 installed in the box beam can be marked on or beside each positioning frame 12, so that the positioning frame 12 corresponding to the positioning mesh 6 to be assembled can be found more conveniently before assembly, which can further improve the assembly efficiency. Figure 1 and Fig.10 As shown, if assembly is required Fig.10 The mesh numbered 15 can be inserted into the movable positioning block 13 Figure 1 In the positioning frame 12 numbered 15, the first web reinforcement 41 corresponding to the web mesh 4 is placed in the second limiting groove 131 of the movable positioning block 13 located in the positioning frame 12 numbered 15, and the second web reinforcement 42 is placed in the first limiting groove 111 of the first convex rib 11, so that the assembly positioning of the positioning mesh 6 numbered 15 can be achieved. The positioning methods of other numbered meshes are similarly known and will not be repeated here.

[0073] Example 2

[0074] This embodiment provides an assembly system for a prestressed pipe positioning mesh of a box girder.

[0075] The assembly system of the prestressed pipe positioning mesh of the box beam described in this embodiment may include the assembly tooling of the prestressed pipe positioning mesh of the box beam as described in Example 1.

[0076] The assembly system of the prestressed pipe positioning mesh of the box beam described in this embodiment may also include a welding machine, and the welding machine may include a mechanical arm and a welding head installed on the mechanical arm.

[0077] The assembly system of the prestressed pipe positioning mesh of the box girder described in this embodiment can use assembly tooling to assemble the web mesh 4 and the bottom plate mesh 5, which can achieve sufficient positioning accuracy, and then use a robot welder to perform automated welding operations on the connection points between the web mesh 4 and the bottom plate mesh 5, which can further improve the overall assembly and welding efficiency.

[0078] It should be noted that the assembly tooling of the prestressed pipe positioning mesh of the box girder included in this embodiment has the same structure and function as the assembly tooling of the prestressed pipe positioning mesh of the box girder described in Example 1, and this embodiment will not go into details therein.

[0079] Example 3

[0080] This embodiment provides a method for positioning a prestressed pipe of a box girder.

[0081] The method for positioning the prestressed pipe of the box girder described in this embodiment can adopt the assembly tool of the prestressed pipe positioning mesh of the box girder as described in Example 1, or adopt the assembly system of the prestressed pipe positioning mesh of the box girder as described in Example 2.

[0082] The method for positioning the prestressed pipe of the box beam described in this embodiment may include the following steps:

[0083] S1: Find the corresponding positioning frame 12 according to the number of the positioning mesh 6 to be assembled, and insert the two movable positioning blocks 13 into the positioning frames 12 corresponding to the first web placement area 1 and the second web placement area 2 respectively;

[0084] S2: horizontally place the web plate mesh 4 assembled below the bottom plate mesh 5 in the first web plate placement area 1 or the second web plate placement area 2, so that the corresponding second web plate reinforcement 42 on the web plate mesh 4 is inserted into the first limiting groove 111, and the corresponding first web plate reinforcement 41 on the web plate mesh 4 is inserted into the second limiting groove 131;

[0085] S3: placing the bottom plate mesh 5 horizontally in the bottom plate placement area 3, so that the first bottom plate steel bar 51 is inserted into the third limiting groove 311, and the second bottom plate steel bar 52 is inserted into the fourth limiting groove 321;

[0086] S4: horizontally placing the web plate mesh 4 assembled on the bottom plate mesh 5 in the second web plate placement area 2 or the first web plate placement area 1, so that the corresponding second web plate reinforcement 42 on the web plate mesh 4 is inserted into the first limiting groove 111, and the corresponding first web plate reinforcement 41 on the web plate mesh 4 is inserted into the second limiting groove 131;

[0087] S5: welding is performed at the connection between the bottom plate mesh 5 and the web plate mesh 4 to form a positioning mesh 6 by welding the bottom plate mesh 5 and the web plate mesh 4;

[0088] S6: Repeat S1 to S5 to complete the assembly and welding of each positioning mesh 6 in the box beam;

[0089] S7: Install each positioning mesh 6 at a corresponding position in the box beam;

[0090] S8: Pass the prestressed pipe through the pipe positioning hole 43 on each positioning mesh 6 in the box girder.

[0091] In summary, the present invention can set a first ridge 11 in the web placement area of ​​the tooling, and open a first limiting groove 111, and the second web reinforcement 42 of the web mesh 4 can be placed in the first limiting groove 111 for X-direction (i.e. Figure 1 The web plate placement area may be provided with a plurality of positioning frames 12, the position of each positioning frame 12 corresponding to the relative position of one of the first web reinforcement bars 41 of the web mesh 4 in each positioning mesh 6 to be assembled, and the movable positioning block 13 may be inserted into the corresponding positioning frame 12, and then the first web reinforcement bar 41 may be placed in the second limiting groove 131 on the movable positioning block 13 for Y-axis (i.e. Figure 1 The web plate mesh 4 can be stably placed in the first limiting groove 111 and the second limiting groove 131 to achieve positioning in the X direction and the Y direction at the same time. The limiting effect of the first limiting groove 111 and the second limiting groove 131 can be used to avoid the web plate mesh 4 from being offset, thereby improving the positioning accuracy. In addition, the web plate mesh 4 can be directly placed in the limiting groove of the movable positioning block 13 at the corresponding position for positioning, and the manual marking and positioning for each positioning can be avoided, thereby improving the assembly efficiency. The present invention can use the assembly tooling to assemble the web plate mesh 4 The assembly with the bottom plate mesh 5 can achieve sufficient positioning accuracy, and then the robot welding machine can be used to automatically weld the connection points between the web mesh 4 and the bottom plate mesh 5, which can further improve the overall assembly and welding efficiency; the present invention can utilize the convex ridges, movable positioning blocks 13 and limit grooves on the assembly tooling, and can directly place the web steel bars or the bottom plate steel bars in the corresponding limit grooves, so as to realize the positioning assembly between the web mesh 4 and the bottom plate mesh 5. The assembly process is simple and efficient, without manual marking and positioning, and has high positioning accuracy.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembly tool for prestressed pipe positioning mesh of a box beam, characterized in that: The positioning mesh (6) comprises a bottom plate mesh (5) and two web plate meshes (4), wherein the two web plate meshes (4) can be respectively assembled on both sides of the bottom plate mesh (5), and the web plate mesh (4) is formed with a plurality of pipeline positioning holes (43) for passing the prestressed pipeline, and the web plate mesh (4) comprises a first web plate steel bar (41) and a second web plate steel bar (42) which are cross-arranged. The assembly tool comprises a bottom plate placement area (3), a first web plate placement area (1), a second web plate placement area (2) and a movable positioning block (13); the first web plate placement area (1) and the second web plate placement area (2) are arranged on both sides of the bottom plate placement area (3); the bottom plate mesh (5) can be placed in the bottom plate placement area (3); and the two web plate meshes (4) can be placed in the first web plate placement area (1) and the second web plate placement area (2), respectively; The first web placement area (1) and the second web placement area (2) are both provided with a plurality of first ridges (11) spaced apart along the Y direction, the first ridges (11) are provided with at least one first limiting groove (111), and the second web reinforcement (42) can be placed in the first limiting groove (111) to position the web mesh (4) in the X direction; The first web placement area (1) and the second web placement area (2) are both provided with a plurality of positioning frames (12); the movable positioning block (13) can be selectively inserted into any one of the positioning frames (12) to correspond to the assembly position of the pipe positioning hole (43) of the web mesh (4) relative to the bottom plate mesh (5); a second limiting groove (131) is provided on the movable positioning block (13); the first web reinforcement (41) can be placed in the second limiting groove (131) to position the web mesh (4) in the Y direction.

2. The assembly tool for the prestressed pipe positioning mesh of the box beam according to claim 1 is characterized in that: The diameter of the second web reinforcement (42) is obtained by subtracting the groove bottom elevation of the second limiting groove (131) on the first ridge (11) in the first web placement area (1) from the groove bottom elevation, and the diameter of the first web reinforcement (41) is obtained by subtracting the groove bottom elevation of the second limiting groove (131) on the first ridge (11) in the second web placement area (2) from the groove bottom elevation of the first limiting groove (111).

3. The assembly tool for the prestressed pipe positioning mesh of the box beam according to claim 1 is characterized in that: The diameter of the second web reinforcement (42) is obtained by subtracting the groove bottom elevation of the second limiting groove (131) on the first ridge (11) in the second web placement area (2) from the groove bottom elevation, and the diameter of the first web reinforcement (41) is obtained by subtracting the groove bottom elevation of the second limiting groove (131) on the first ridge (11) in the first web placement area (1) from the groove bottom elevation.

4. The assembly tool for the prestressed pipe positioning mesh of the box beam according to claim 1 is characterized in that: The first ridge (11) of the first web placement area (1) or the second web placement area (2) is also provided with a first horizontal placement surface (112), and the elevation of the first horizontal placement surface (112) is consistent with the elevation of the bottom of the first limiting groove (111).

5. The assembly tool for the prestressed pipe positioning mesh of the box beam according to claim 1 is characterized in that: The bottom plate mesh (5) comprises a first bottom plate steel bar (51) and a second bottom plate steel bar (52); the bottom plate placement area (3) is provided with a plurality of second ridges (31) spaced apart along the X direction, at least two of the plurality of second ridges (31) are provided with third limiting grooves (311), and the first bottom plate steel bar (51) can be placed in the third limiting grooves (311) to position the bottom plate mesh (5) in the Y direction.

6. The assembly tool for the prestressed pipe positioning mesh of the box beam according to claim 5, characterized in that: At least two of the second ridges (31) provided with the third limiting grooves (311) are also provided with a second horizontal placement surface (312), and the elevation of the second horizontal placement surface (312) is consistent with the elevation of the bottom of the third limiting groove (311).

7. The assembly tool for the prestressed pipe positioning mesh of the box beam according to claim 5, characterized in that: The bottom plate placement area (3) is provided with a third convex ridge (32), the third convex ridge (32) is provided with a fourth limiting groove (321), and the second bottom plate steel bar (52) can be placed in the fourth limiting groove (321) to position the bottom plate mesh (5) in the X direction.

8. The assembly tool for the prestressed pipe positioning mesh of the box beam according to claim 7, characterized in that: The third convex ridge (32) is also provided with a third horizontal placement surface (322), and the elevation of the third horizontal placement surface (322) is consistent with the elevation of the bottom of the fourth limiting groove (321).

9. An assembly system for prestressed pipe positioning mesh of a box beam, characterized in that: It comprises an assembly tool for the prestressed pipe positioning mesh of the box beam as described in any one of claims 1 to 8; it also comprises a welding machine, and the welding machine comprises a mechanical arm and a welding head installed on the mechanical arm.

10. A method for positioning a prestressed pipe of a box beam, characterized in that: The assembly tool for the prestressed pipe positioning mesh of the box beam according to any one of claims 1 to 8 or the assembly system for the prestressed pipe positioning mesh of the box beam according to claim 9 comprises: S1: Find the corresponding positioning frame (12) according to the serial number of the positioning mesh (6) to be assembled, and insert the two movable positioning blocks (13) into the positioning frames (12) corresponding to the first web placement area (1) and the second web placement area (2), respectively; S2: The web mesh (4) assembled below the bottom plate mesh (5) is horizontally placed in the first web placement area (1) or the second web placement area (2), so that the corresponding second web reinforcement (42) on the web mesh (4) is inserted into the first limiting groove (111), and the corresponding first web reinforcement (41) on the web mesh (4) is inserted into the second limiting groove (131); S3: placing the bottom plate mesh (5) horizontally in the bottom plate placement area (3), so that the first bottom plate steel bar (51) is inserted into the third limiting groove (311), and the second bottom plate steel bar (52) is inserted into the fourth limiting groove (321); S4: horizontally placing the web mesh (4) assembled on the top of the bottom plate mesh (5) in the second web placement area (2) or the first web placement area (1), so that the corresponding second web reinforcement (42) on the web mesh (4) is inserted into the first limiting groove (111), and the corresponding first web reinforcement (41) on the web mesh (4) is inserted into the second limiting groove (131); S5: welding is performed at the connection between the bottom plate mesh (5) and the web plate mesh (4), and the bottom plate mesh (5) and the web plate mesh (4) are welded to form the positioning mesh (6); S6: repeating S1 to S5 to complete the assembly and welding of each positioning mesh (6) in the box beam; S7: installing each of the positioning meshes (6) at a corresponding position in the box beam; S8: Pass the prestressed pipe through the pipe positioning hole (43) on each positioning mesh (6) in the box beam.

Images