A small box girder bottom web longitudinal reinforcement rapid positioning complete device and reinforcement method

Abstract

This invention discloses a complete set of equipment and methods for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder, belonging to the field of precast box girder bottom web manufacturing technology. It includes a first gantry frame, a second gantry frame, a third gantry frame, a fourth gantry frame, a multi-electric sliding block linear guide rail, a bottom web stirrup mounting frame, a first longitudinal reinforcement fixing device, a first welding device, a second welding device, a third welding device, a longitudinal reinforcement sorting and guiding device, and a second longitudinal reinforcement fixing device. The first, second, third, and fourth gantry frames are arranged sequentially from back to front. The second, third, and fourth gantry frames are all connected to the multi-electric sliding block linear guide rail. The first longitudinal reinforcement fixing device is installed on the first gantry frame. Through the above method, this invention achieves rapid placement and welding of longitudinal reinforcement bars inside and outside the bottom web, as well as the upper and lower layers of longitudinal reinforcement bars in the bottom slab.

Description

Technical Field

[0001] This invention relates to the field of precast box girder bottom web manufacturing technology, specifically to a complete set of equipment and method for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder. Background Technology

[0002] In the existing technology, there is a type of precast box girder bottom web stirrup, which consists of bottom slab stirrup and two sets of web stirrup. When welding the continuous longitudinal bars of the bottom web stirrup, a row of continuous longitudinal bars from top to bottom needs to be welded to the inside and outside of the two web stirrups on the left and right sides. The upper and lower layers of the bottom slab stirrup also need to be welded with continuous longitudinal bars.

[0003] Currently, the welding of the longitudinal ribs at the aforementioned locations is mostly done manually, one by one, which requires a large amount of manpower and cannot be completed by automated equipment.

[0004] Based on this, the present invention designs a complete set of equipment and reinforcement arrangement method for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder to solve the above problems. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a complete set of devices and methods for rapid placement of longitudinal reinforcement bars along the bottom web of a small box girder.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A complete set of equipment and method for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder, including a first gantry frame, a second gantry frame, a third gantry frame, a fourth gantry frame, a multi-electric sliding block linear guide rail, a bottom web stirrup installation frame, a first longitudinal reinforcement fixing device, a first welding device, a second welding device, a third welding device, a longitudinal reinforcement sorting and guiding device, and a second longitudinal reinforcement fixing device;

[0008] The first gantry frame, the second gantry frame, the third gantry frame, and the fourth gantry frame are arranged sequentially from back to front;

[0009] The second, third, and fourth gantry frames are all connected to multi-electric slider linear guide rails;

[0010] The first longitudinal rib fixing device is installed on the first gantry frame, and the first welding device, the third welding device, and the longitudinal rib combing and guiding device are respectively installed on the second gantry frame, the third gantry frame, and the fourth gantry frame.

[0011] Furthermore, the bottom and web stirrups consist of one bottom stirrup and two web stirrups;

[0012] The bottom web plate stirrup mounting bracket is used to install and fix the bottom web plate stirrups;

[0013] The first longitudinal reinforcement fixing device is used to fix the longitudinal reinforcement on the inner and outer sides of the two web stirrups;

[0014] The second longitudinal reinforcement fixing device is used to fix the longitudinal reinforcement of the upper and lower layers of the bottom plate stirrups;

[0015] The longitudinal reinforcement combing and guiding device is used to comb and guide the longitudinal reinforcement on the inner and outer sides of the two web stirrups;

[0016] The first welding device, the second welding device, and the third welding device are respectively used to weld the longitudinal bars of the upper layer of the bottom plate stirrups, the longitudinal bars of the lower layer of the bottom plate stirrups, and the longitudinal bars of the inner and outer sides of the web stirrups.

[0017] Furthermore, the multi-electric slider linear slide rail is provided in two sets, and each set of multi-electric slider linear slide rail is provided with three electric sliders. The lower ends of the second gantry, the third gantry, and the fourth gantry are respectively fixedly connected to the three electric sliders of the multi-electric slider linear slide rail.

[0018] Furthermore, the first continuous longitudinal rib fixing device includes a first bidirectional screw guide linear module, a first fixing plate, a second fixing plate, a fixing groove, and a hydraulic cylinder. The first bidirectional screw guide linear module is fixedly installed on the first gantry frame. The first bidirectional screw guide linear module is provided with two sliders that are symmetrically arranged with opposite directions of movement. The first fixing plate, the second fixing plate, the fixing groove, and the hydraulic cylinder are all provided in twos and are symmetrically arranged. The first fixing plate is fixedly connected to the slider of the first bidirectional screw guide linear module, and the second fixing plate is slidably connected to the slider of the first bidirectional screw guide linear module. The hydraulic cylinder is fixedly installed on the slider of the first bidirectional screw guide linear module, and the output end of the hydraulic cylinder is fixedly connected to the second fixing plate. The first fixing plate and the second fixing plate are provided with fixing grooves for clamping the continuous longitudinal rib at equal intervals.

[0019] Furthermore, the first welding device includes a first linear module, a support frame, and a first welding machine. The first linear module is fixedly installed on the second gantry frame, the support frame is fixedly installed on the output slider of the first linear module, and the first welding machine is fixedly installed on the support frame at equal intervals.

[0020] Furthermore, the second welding device includes a second linear module, a second support frame, and a second welding machine. The second linear module is arranged front and rear, the second support frame is fixedly installed on the output slider of the second linear module, and the second welding machine is fixedly installed on the second support frame at equal intervals.

[0021] Furthermore, the third welding device includes a first left mounting bracket, a first right mounting bracket, a third welding machine, and a second bidirectional lead screw guide linear module. The second bidirectional lead screw guide linear module is fixedly mounted on the third gantry frame. The second bidirectional lead screw guide linear module has two output sliders with opposite directions of movement and symmetrical arrangement. The first left mounting bracket and the first right mounting bracket are respectively fixedly mounted on the two output sliders of the second bidirectional lead screw guide linear module. The third welding machine is fixedly mounted at equal intervals from top to bottom at both ends of the first left mounting bracket and the first right mounting bracket.

[0022] Furthermore, the longitudinal rib combing and guiding device includes a second left mounting bracket, a second right mounting bracket, a longitudinal rib guide sleeve, and a third bidirectional screw guide rail linear module. The third bidirectional screw guide rail linear module is fixedly installed on the fourth gantry frame. The third bidirectional screw guide rail linear module has two output sliders with opposite directions of movement and symmetrical arrangement. The second left mounting bracket and the second right mounting bracket are respectively fixedly installed on the two output sliders of the third bidirectional screw guide rail linear module. The longitudinal rib guide sleeves are fixedly installed at equal intervals from top to bottom on the inner and outer walls of the second left mounting bracket and the second right mounting bracket.

[0023] Furthermore, the second longitudinal rib fixing device has multiple sets and is equally spaced along the front-to-back direction;

[0024] The second longitudinal rib fixing device includes a telescopic rod, an electric push rod, a support rod, and pulleys. There are two sets of telescopic rods. The electric push rod is fixedly installed at the fixed end of the telescopic rod. The output end of the electric push rod is fixedly connected to the movable end of the telescopic rod. The two ends of the support rod are rotatably connected to the two telescopic rods respectively. The pulleys are rotatably installed on the support rod at equal intervals.

[0025] To better achieve the objectives of this invention, the present invention also provides a complete set of devices and methods for quickly positioning the longitudinal reinforcement bars of the bottom web of a small box girder, including the following steps:

[0026] Step 1: Fix the bottom web stirrups at equal intervals onto the bottom web stirrup mounting frame;

[0027] Step 2: First, weld the continuous longitudinal bars to the outside of the two web stirrups on the left and right sides of the bottom web plate. Place the continuous longitudinal bars from top to bottom between the fixing slots opened on the first fixing plate and the second fixing plate. At the same time, pass the continuous longitudinal bars through the guide sleeves of the continuous longitudinal bars inside the second left mounting bracket and the second right mounting bracket. Start the hydraulic cylinder. The output end of the hydraulic cylinder drives the second fixing plate to slide on the slider of the first bidirectional screw guide linear module, so that the fixing slots on the first fixing plate and the second fixing plate approach and finally clamp the continuous longitudinal bars.

[0028] Step 3: Start the electric slider of the multi-electric slider linear slide rail fixedly connected to the fourth gantry. The movement of the fourth gantry drives the guide sleeves of the second left mounting bracket and the second right mounting bracket on the third bidirectional screw guide rail linear module to guide the longitudinal rib.

[0029] Step 4: Start the electric slider of the multi-electric slider linear slide rail fixedly connected to the third gantry, so that the third gantry moves with the fourth gantry. Adjust the position of the first left mounting frame and the first right mounting frame through the second bidirectional screw guide rail linear module, so that the third welding machine on the outside of the first left mounting frame and the first right mounting frame welds the inner longitudinal bars of the two web plate stirrups, and completes the inner welding of the web plate stirrups in sequence.

[0030] Step 5: Activate the multi-electric slider linear slide rail to reset the third and fourth gantry frames. Adjust the position of the longitudinal reinforcement clamped in the fixed groove by adjusting the position of the first bidirectional screw guide rail linear module to reach the welding position on the outside of the web stirrup.

[0031] Step 6: Adjust the positions of the first left mounting bracket and the first right mounting bracket by using the second bidirectional screw guide rail linear module, so that the third welding machine inside the first left mounting bracket and the first right mounting bracket can weld the outer longitudinal reinforcement of the two web plate stirrups.

[0032] Step 7: Complete the welding of the outer side of the web plate stirrups in sequence, and start the multi-electric slider linear slide rail to reset the third and fourth gantry frames;

[0033] Step 8: Adjust the height of the movable end of the telescopic rod by using the electric push rod, and the telescopic rod will drive the support rod to rise and fall.

[0034] Step 9: By activating the electric slider of the multi-electric slider linear slide rail fixedly connected to the second gantry, the first welding machine sequentially welds the continuous longitudinal reinforcement of the upper layer of the bottom plate stirrups.

[0035] Step 10: Place the continuous longitudinal reinforcement of the lower layer of the bottom plate stirrups on the pulley; adjust the position of the second support frame through the second linear module so that the second welding machine on the second support frame moves to the welding position, start the second welding machine to weld the continuous longitudinal reinforcement of the lower layer of the bottom plate stirrups, and complete the welding of the continuous longitudinal reinforcement of the lower layer of the bottom plate stirrups in sequence.

[0036] Technical effect

[0037] In use, the present invention fixes the longitudinal bars welded to the left and right web stirrups of the bottom web plate using a first longitudinal bar fixing device; fixes the longitudinal bars welded to the bottom plate of the box girder bottom web stirrups using a second longitudinal bar fixing device; guides the longitudinal bars welded to the left and right sides of the box girder bottom web stirrups using a longitudinal bar guiding device; and welds the longitudinal bars on the upper layer of the bottom stirrups, the lower layer of the bottom stirrups, and the longitudinal bars of the left and right web stirrups using a first welding device, a second welding device, and a third welding device, respectively. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0039] Figure 1 This invention provides a three-dimensional assembly for the rapid placement of longitudinal reinforcement bars along the bottom web of a small box girder. Figure 1 ;

[0040] Figure 2 This is a front view of a complete set of devices for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder according to the present invention.

[0041] Figure 3 This is a left view of a complete set of devices for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder according to the present invention.

[0042] Figure 4 This invention provides a three-dimensional assembly for the rapid placement of longitudinal reinforcement bars along the bottom web of a small box girder. Figure 2 ;

[0043] Figure 5 This is a perspective view of the first through-length longitudinal rib fixing device of the present invention;

[0044] Figure 6 This is a perspective view of the first welding apparatus of the present invention;

[0045] Figure 7 This is a perspective view of the second welding apparatus of the present invention;

[0046] Figure 8 This is a perspective view of the third welding apparatus of the present invention;

[0047] Figure 9 This is a perspective view of the longitudinal rib combing and guiding device of the present invention;

[0048] Figure 10 This is a perspective view of the second longitudinal rib fixing device of the present invention;

[0049] Figure 11 This is a plan view of the bottom web stirrups of the present invention.

[0050] The labels in the diagram represent:

[0051] 1. First gantry frame 2. Second gantry frame 3. Third gantry frame 4. Fourth gantry frame 5. Multi-electric sliding block linear guide rail 6. Bottom web plate stirrup mounting bracket 7. First continuous longitudinal reinforcement fixing device 71. First bidirectional screw guide rail linear module 72. First fixing plate 73. Second fixing plate 74. Fixing groove 75. Hydraulic cylinder 8. First welding device 81. First linear module 82. Support frame 83. First welding machine 9. Second welding device 91. Second linear module 92. Second support frame 93. 10. Second welding machine 10. Third welding device 101. First left mounting bracket 102. First right mounting bracket 103. Third welding machine 104. Second bidirectional screw guide rail linear module 11. Continuous longitudinal rib combing and guiding device 111. Second left mounting bracket 112. Second right mounting bracket 113. Continuous longitudinal rib guide sleeve 114. Third bidirectional screw guide rail linear module 12. Second continuous longitudinal rib fixing device 121. Telescopic rod 122. Electric push rod 123. Support rod 124. Pulley. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0053] The present invention will be further described below with reference to embodiments.

[0054] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0055] Example 1

[0056] Please refer to the instruction manual appendix. Figure 1-11A complete set of equipment and method for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder, comprising a first gantry frame 1, a second gantry frame 2, a third gantry frame 3, a fourth gantry frame 4, a multi-electric sliding block linear guide rail 5, a bottom web stirrup installation frame 6, a first longitudinal reinforcement fixing device 7, a first welding device 8, a second welding device 9, a third welding device 10, a longitudinal reinforcement sorting and guiding device 11, and a second longitudinal reinforcement fixing device 12; the first gantry frame 1, the second gantry frame 2, the third gantry frame 3, and the fourth gantry frame 4 are arranged sequentially from back to front;

[0057] The second gantry 2, the third gantry 3, and the fourth gantry 4 are all connected to the multi-electric slider linear slide rail 5;

[0058] The first longitudinal reinforcement fixing device 7 is installed on the first gantry frame 1. The first welding device 8, the third welding device 10, and the longitudinal reinforcement combing and guiding device 11 are respectively installed on the second gantry frame 2, the third gantry frame 3, and the fourth gantry frame 4. The bottom web plate stirrup mounting bracket 6 is used to install and fix the bottom web plate stirrups.

[0059] In use, the present invention fixes the longitudinal bars welded to the left and right web stirrups of the bottom web plate by the first longitudinal bar fixing device 7; fixes the longitudinal bars welded to the bottom plate of the bottom web plate stirrups of the box girder by the second longitudinal bar fixing device 12; guides the longitudinal bars welded to the left and right sides of the bottom web plate stirrups of the box girder by the longitudinal bar guiding device 11; and guides the longitudinal bars of the upper layer of the bottom plate stirrups, the lower layer of the bottom plate stirrups, and the longitudinal bars of the left and right web plate stirrups by the first welding device 8, the second welding device 9, and the third welding device 10 respectively.

[0060] Example 2

[0061] like Figure 1-11 As shown, in a preferred embodiment of the present invention, the bottom web stirrups consist of one bottom stirrup and two web stirrups;

[0062] The bottom web stirrup mounting bracket 6 is used to install and fix the bottom web stirrups;

[0063] The first continuous longitudinal reinforcement fixing device 7 is used to fix the continuous longitudinal reinforcement on the inner and outer sides of the two web stirrups;

[0064] The second longitudinal reinforcement fixing device 12 is used to fix the longitudinal reinforcement of the upper and lower layers of the bottom plate stirrups;

[0065] The longitudinal reinforcement combing and guiding device 11 is used to comb and guide the longitudinal reinforcement on the inner and outer sides of the two web stirrups;

[0066] The first welding device 8, the second welding device 9, and the third welding device 10 are respectively used to weld the longitudinal bars of the upper layer of the bottom plate stirrups, the longitudinal bars of the lower layer of the bottom plate stirrups, and the longitudinal bars of the inner and outer sides of the web stirrups.

[0067] The multi-electric slider linear slide rail 5 is provided in two sets, and each set of multi-electric slider linear slide rail 5 is provided with three electric sliders. The lower ends of the second gantry 2, the third gantry 3, and the fourth gantry 4 are respectively fixedly connected to the three electric sliders of the multi-electric slider linear slide rail 5.

[0068] The first continuous longitudinal rib fixing device 7 includes a first bidirectional screw guide linear module 71, a first fixing plate 72, a second fixing plate 73, a fixing groove 74, and a hydraulic cylinder 75. The first bidirectional screw guide linear module 71 is fixedly installed on the first gantry frame 1. The first bidirectional screw guide linear module 71 is provided with two sliders that are symmetrically arranged with opposite directions of movement. The first fixing plate 72, the second fixing plate 73, the fixing groove 74, and the hydraulic cylinder 75 are all provided in twos and are symmetrically arranged. The first fixing plate 72 is fixedly connected to the slider of the first bidirectional screw guide linear module 71, and the second fixing plate 73 is slidably connected to the slider of the first bidirectional screw guide linear module 71. The hydraulic cylinder 75 is fixedly installed on the slider of the first bidirectional screw guide linear module 71, and the output end of the hydraulic cylinder 75 is fixedly connected to the second fixing plate 73. The first fixing plate 72 and the second fixing plate 73 are provided with fixing grooves 74 at equal intervals for clamping the continuous longitudinal rib.

[0069] The first welding device 8 includes a first linear module 81, a support frame 82, and a first welding machine 83. The first linear module 81 is fixedly installed on the second gantry 2, the support frame 82 is fixedly installed on the output slider of the first linear module 81, and the first welding machine 83 is fixedly installed on the support frame 82 at equal intervals.

[0070] The second welding device 9 includes a second linear module 91, a second support frame 92, and a second welding machine 93. The second linear module 91 is arranged in front and behind, the second support frame 92 is fixedly installed on the output slider of the second linear module 91, and the second welding machine 93 is fixedly installed on the second support frame 92 at equal intervals.

[0071] The third welding device 10 includes a first left mounting bracket 101, a first right mounting bracket 102, a third welding machine 103, and a second bidirectional lead screw guide linear module 104. The second bidirectional lead screw guide linear module 104 is fixedly mounted on the third gantry 3. The second bidirectional lead screw guide linear module 104 has two output sliders with opposite directions of movement and symmetrical arrangement. The first left mounting bracket 101 and the first right mounting bracket 102 are respectively fixedly mounted on the two output sliders of the second bidirectional lead screw guide linear module 104. The third welding machine 103 is fixedly mounted at equal intervals from top to bottom at both ends of the first left mounting bracket 101 and the first right mounting bracket 102.

[0072] The longitudinal rib combing and guiding device 11 includes a second left mounting bracket 111, a second right mounting bracket 112, a longitudinal rib guide sleeve 113, and a third bidirectional screw guide rail linear module 114. The third bidirectional screw guide rail linear module 114 is fixedly installed on the fourth gantry 4. The third bidirectional screw guide rail linear module 114 has two output sliders with opposite and symmetrical movement directions. The second left mounting bracket 111 and the second right mounting bracket 112 are respectively fixedly installed on the two output sliders of the third bidirectional screw guide rail linear module 114. The longitudinal rib guide sleeves 113 are fixedly installed at equal intervals from top to bottom on the inner and outer walls of the second left mounting bracket 111 and the second right mounting bracket 112.

[0073] The second longitudinal reinforcement fixing device 12 has multiple sets and is set at equal intervals along the front and rear directions.

[0074] The second longitudinal rib fixing device 12 includes a telescopic rod 121, an electric push rod 122, a support rod 123, and a pulley 124. The telescopic rod 121 is provided in two sets. The electric push rod 122 is fixedly installed at the fixed end of the telescopic rod 121. The output end of the electric push rod 122 is fixedly connected to the movable end of the telescopic rod 121. The two ends of the support rod 123 are respectively rotatably connected to the two telescopic rods 121. The pulley 124 is rotatably installed on the support rod 123 at equal intervals.

[0075] Example 3

[0076] like Figure 1-11 As shown, in a preferred embodiment of the present invention, the following steps are also included:

[0077] Step 1: Fix the bottom web plate stirrups at equal intervals onto the bottom web plate stirrup mounting frame 6;

[0078] Step 2: First, weld the continuous longitudinal bars to the outside of the two web stirrups on the left and right sides of the bottom web plate. Place the continuous longitudinal bars from top to bottom between the fixing slots 74 opened on the first fixing plate 72 and the second fixing plate 73. At the same time, pass the continuous longitudinal bars through the continuous longitudinal bar guide sleeves 113 inside the second left mounting bracket 111 and the second right mounting bracket 112. Start the hydraulic cylinder 75. The output end of the hydraulic cylinder 75 drives the second fixing plate 73 to slide on the slider of the first bidirectional screw guide linear module 71, so that the fixing slots 74 on the first fixing plate 72 and the second fixing plate 73 approach and finally clamp the continuous longitudinal bars.

[0079] Step 3: Start the electric slider of the multi-electric slider linear slide rail 5 fixedly connected to the fourth gantry 4. The movement of the fourth gantry 4 drives the guide sleeve 113 of the longitudinal rib on the inner side of the second left mounting bracket 111 and the second right mounting bracket 112 on the third bidirectional screw guide rail linear module 114 to guide the longitudinal rib.

[0080] Step 4: Start the electric slider of the multi-electric slider linear slide rail 5 fixedly connected to the third gantry 3, so that the third gantry 3 moves with the fourth gantry 4. Adjust the position of the first left mounting frame 101 and the first right mounting frame 102 through the second bidirectional screw guide linear module 104, so that the third welding machine 103 on the outside of the first left mounting frame 101 and the first right mounting frame 102 welds the inner longitudinal bars of the two web plate stirrups, and completes the inner welding of the web plate stirrups in sequence.

[0081] Step 5: Activate the multi-electric slider linear slide rail 5 to reset the third gantry 3 and the fourth gantry 4. Adjust the position of the longitudinal reinforcement clamped in the fixing groove 74 by adjusting the position of the first bidirectional screw guide linear module 71 to reach the welding position on the outside of the web stirrup.

[0082] Step 6: Adjust the positions of the first left mounting bracket 101 and the first right mounting bracket 102 through the second bidirectional screw guide linear module 104, so that the third welding machine 103 inside the first left mounting bracket 101 and the first right mounting bracket 102 welds the outer longitudinal reinforcement of the two web plate stirrups.

[0083] Step 7: Complete the welding of the outer side of the web plate stirrups in sequence, and start the multi-electric slider linear slide rail 5 to reset the third gantry 3 and the fourth gantry 4.

[0084] Step 8: Adjust the lifting and lowering of the movable end of the telescopic rod 121 by using the electric push rod 122, and the telescopic rod 121 will drive the support rod 123 to lift and lower.

[0085] Step 9: By activating the electric slider of the multi-electric slider linear slide rail 5, which is fixedly connected to the second gantry 2, the first welding machine 83 sequentially welds the continuous longitudinal reinforcement of the upper layer of the bottom plate stirrups.

[0086] Step 10: Place the continuous longitudinal reinforcement of the lower layer of the bottom plate stirrups on the pulley 124; adjust the position of the second support frame 92 through the second linear module 91 so that the second welding machine 93 on the second support frame 92 moves to the welding position, start the second welding machine 93 to weld the continuous longitudinal reinforcement of the lower layer of the bottom plate stirrups, and complete the welding of the continuous longitudinal reinforcement of the lower layer of the bottom plate stirrups in sequence.

[0087] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A complete set of devices for rapid placement of longitudinal reinforcement bars along the bottom web of a small box girder, characterized in that: It includes a first gantry frame (1), a second gantry frame (2), a third gantry frame (3), a fourth gantry frame (4), a multi-electric sliding block linear guide (5), a bottom web plate stirrup mounting frame (6), a first continuous longitudinal reinforcement fixing device (7), a first welding device (8), a second welding device (9), a third welding device (10), a continuous longitudinal reinforcement sorting and guiding device (11), and a second continuous longitudinal reinforcement fixing device (12); The first gantry (1), the second gantry (2), the third gantry (3) and the fourth gantry (4) are arranged sequentially from back to front; The second gantry (2), the third gantry (3), and the fourth gantry (4) are all connected to the multi-electric slider linear slide rail (5); The first longitudinal rib fixing device (7) is installed on the first gantry frame (1), and the first welding device (8), the third welding device (10), and the longitudinal rib combing and guiding device (11) are respectively installed on the second gantry frame (2), the third gantry frame (3), and the fourth gantry frame (4); The first longitudinal rib fixing device (7) includes a first bidirectional screw guide linear module (71), a first fixing plate (72), a second fixing plate (73), a fixing groove (74), and a hydraulic cylinder (75). The first bidirectional screw guide linear module (71) is fixedly installed on the first gantry frame (1). The first bidirectional screw guide linear module (71) is provided with two sliders that move in opposite directions and are symmetrically arranged. The first fixing plate (72), the second fixing plate (73), the fixing groove (74), and the hydraulic cylinder (75) are each provided with two sliders. The first fixed plate (72) is fixedly connected to the slider of the first bidirectional lead screw guide linear module (71), and the second fixed plate (73) is slidably connected to the slider of the first bidirectional lead screw guide linear module (71). The oil cylinder (75) is fixedly installed on the slider of the first bidirectional lead screw guide linear module (71). The output end of the oil cylinder (75) is fixedly connected to the second fixed plate (73). The first fixed plate (72) and the second fixed plate (73) are provided with fixed grooves (74) for clamping the longitudinal ribs at equal intervals. The third welding device (10) includes a first left mounting bracket (101), a first right mounting bracket (102), a third welding machine (103), and a second bidirectional lead screw guide linear module (104). The second bidirectional lead screw guide linear module (104) is fixedly mounted on the third gantry (3). The second bidirectional lead screw guide linear module (104) is provided with two output sliders that move in opposite directions and are symmetrically arranged. The first left mounting bracket (101) and the first right mounting bracket (102) are respectively fixedly mounted on the two output sliders of the second bidirectional lead screw guide linear module (104). The third welding machine (103) is fixedly mounted at equal intervals from top to bottom at both ends of the first left mounting bracket (101) and the first right mounting bracket (102). The longitudinal rib combing guide device (11) includes a second left mounting bracket (111), a second right mounting bracket (112), a longitudinal rib guide sleeve (113), and a third bidirectional screw guide rail linear module (114). The third bidirectional screw guide rail linear module (114) is fixedly installed on the fourth gantry (4). The third bidirectional screw guide rail linear module (114) is provided with two output sliders with opposite and symmetrical movement directions. The second left mounting bracket (111) and the second right mounting bracket (112) are respectively fixedly installed on the two output sliders of the third bidirectional screw guide rail linear module (114). The longitudinal rib guide sleeves (113) are fixedly installed at equal intervals from top to bottom on the inner and outer walls of the second left mounting bracket (111) and the second right mounting bracket (112).

2. The complete set of equipment for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder according to claim 1, characterized in that, The bottom and web stirrups consist of one bottom stirrup and two web stirrups. The bottom web stirrup mounting bracket (6) is used to install and fix the bottom web stirrups; The first longitudinal reinforcement fixing device (7) is used to fix the longitudinal reinforcement on the inner and outer sides of the two web stirrups; The second longitudinal reinforcement fixing device (12) is used to fix the longitudinal reinforcement of the upper and lower layers of the bottom plate stirrups; The longitudinal reinforcement combing and guiding device (11) is used to comb and guide the longitudinal reinforcement inside and outside the two web stirrups; The first welding device (8), the second welding device (9), and the third welding device (10) are respectively used to weld the longitudinal bars of the upper layer of the bottom plate stirrups, the longitudinal bars of the lower layer of the bottom plate stirrups, and the longitudinal bars of the inner and outer sides of the web stirrups.

3. The complete set of equipment for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder according to claim 2, characterized in that, The multi-electric slider linear slide rail (5) is provided in two sets, and each set of multi-electric slider linear slide rail (5) is provided with three electric sliders. The lower ends of the second gantry (2), the third gantry (3), and the fourth gantry (4) are respectively fixedly connected to the three electric sliders of the multi-electric slider linear slide rail (5).

4. The complete set of devices for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder according to claim 3, characterized in that, The first welding device (8) includes a first linear module (81), a support frame (82) and a first welding machine (83). The first linear module (81) is fixedly installed on the second gantry (2). The support frame (82) is fixedly installed on the output slider of the first linear module (81). The first welding machine (83) is fixedly installed on the support frame (82) at equal intervals.

5. The complete set of equipment for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder according to claim 4, characterized in that, The second welding device (9) includes a second linear module (91), a second support frame (92), and a second welding machine (93). The second linear module (91) is arranged in front and behind. The second support frame (92) is fixedly installed on the output slider of the second linear module (91). The second welding machine (93) is fixedly installed on the second support frame (92) at equal intervals.

6. The complete set of equipment for rapid placement of longitudinal reinforcement bars in the bottom web of a small box girder according to claim 5, characterized in that, The second longitudinal reinforcement fixing device (12) has multiple sets and is equally spaced along the front and rear directions; The second longitudinal rib fixing device (12) includes a telescopic rod (121), an electric push rod (122), a support rod (123), and a pulley (124). The telescopic rod (121) is provided in two sets. The electric push rod (122) is fixedly installed on the fixed end of the telescopic rod (121). The output end of the electric push rod (122) is fixedly connected to the movable end of the telescopic rod (121). The two ends of the support rod (123) are respectively rotatably connected to the two telescopic rods (121). The pulley (124) is rotatably installed on the support rod (123) at equal intervals.

7. A method for arranging longitudinal reinforcement in the bottom web of a small box girder as described in claim 6, characterized in that... Includes the following steps: Step 1: Fix the bottom web plate stirrups at equal intervals onto the bottom web plate stirrup mounting frame (6); Step 2: First, weld the continuous longitudinal bars to the outside of the two web stirrups on the left and right sides of the bottom web plate. Place the continuous longitudinal bars from top to bottom between the fixing grooves (74) opened on the first fixing plate (72) and the second fixing plate (73). At the same time, pass the continuous longitudinal bars through the continuous longitudinal bar guide sleeves (113) inside the second left mounting bracket (111) and the second right mounting bracket (112). Start the hydraulic cylinder (75). The output end of the hydraulic cylinder (75) drives the second fixing plate (73) to slide on the slider of the first bidirectional screw guide rail linear module (71), so that the fixing grooves (74) on the first fixing plate (72) and the second fixing plate (73) approach and finally clamp the continuous longitudinal bars. Step 3: Start the electric slider of the multi-electric slider linear slide rail (5) which is fixedly connected to the fourth gantry (4). The fourth gantry (4) moves to drive the guide sleeve (113) of the longitudinal rib inside the second left mounting bracket (111) and the second right mounting bracket (112) on the third bidirectional screw guide rail linear module (114) to guide the longitudinal rib. Step 4: Start the electric slider of the multi-electric slider linear slide rail (5) fixedly connected to the third gantry (3), so that the third gantry (3) moves with the fourth gantry (4). Adjust the position of the first left mounting frame (101) and the first right mounting frame (102) through the second bidirectional screw guide rail linear module (104), so that the third welding machine (103) on the outside of the first left mounting frame (101) and the first right mounting frame (102) welds the inner longitudinal bars of the two web plate stirrups, and completes the inner welding of the web plate stirrups in sequence. Step 5: Start the multi-electric slider linear slide rail (5) to reset the third gantry (3) and the fourth gantry (4). Adjust the position of the longitudinal reinforcement clamped in the fixed groove (74) by adjusting the position of the first bidirectional screw guide rail linear module (71) to reach the welding position on the outside of the web plate stirrup. Step 6: Adjust the positions of the first left mounting bracket (101) and the first right mounting bracket (102) through the second bidirectional screw guide linear module (104) so ​​that the third welding machine (103) inside the first left mounting bracket (101) and the first right mounting bracket (102) welds the outer longitudinal reinforcement of the two web plate stirrups. Step 7: Complete the welding of the outer side of the web plate stirrups in sequence, and start the multi-electric slider linear slide rail (5) to reset the third gantry (3) and the fourth gantry (4); Step 8: Adjust the lifting and lowering of the movable end of the telescopic rod (121) by using the electric push rod (122), and the telescopic rod (121) will drive the support rod (123) to lift and lower. Step 9: By activating the electric slider of the multi-electric slider linear slide rail (5) which is fixedly connected to the second gantry (2), the first welding machine (83) sequentially welds the continuous longitudinal reinforcement of the upper layer of the bottom plate stirrups. Step 10: Place the continuous longitudinal reinforcement of the lower layer of the bottom plate stirrups on the pulley (124); adjust the position of the second support frame (92) through the second straight module (91) so that the second welding machine (93) on the second support frame (92) moves to the welding position, start the second welding machine (93) to weld the continuous longitudinal reinforcement of the lower layer of the bottom plate stirrups, and complete the welding of the continuous longitudinal reinforcement of the lower layer of the bottom plate stirrups in sequence.

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