Box girder U rib turnover device

Abstract

The invention discloses a box girder U rib turnover device, and particularly relates to the technical field of U rib production, the box girder U rib turnover device comprises a discharging table, a turnover placing mechanism is arranged at the rear end of the discharging table, a storage mechanism is arranged at the rear end of the turnover placing mechanism, a plurality of finished U ribs are arranged in the storage mechanism, the upper part of the upper end of the discharging table is inclined, and the upper part of the lower end of the discharging table is inclined. A plurality of fan-shaped limiting blocks which are in bilateral symmetry are fixed to the inclined part of the discharging table. When the box girder U rib overturning device works, the overturning placing mechanism and the material storage mechanism are arranged, so that produced U ribs of different specifications can be stored in a classified and isolated mode, the searching time of workers is greatly shortened, the construction efficiency is improved, the U ribs are prevented from being extruded, collided and deformed, and the installation precision and the mechanical property are guaranteed. Moreover, the box girder U-shaped rib overturning device is simple and convenient to operate, easy to operate, high in automation degree and capable of reducing the labor intensity of workers, stably optimizing U-shaped rib stacking and improving the working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of U-bar production, and in particular to a box girder U-bar turning device. Background Art

[0002] In modern bridge construction, box girders are key load-bearing structural components, and their quality and construction efficiency are extremely critical. U-bars, as an important part of the box girder steel skeleton, are in great demand during production. After the U-bars are bent into a U shape, the finished products need to be stacked. Due to the simple existing shelves or ground stacking methods, it is impossible to effectively classify and isolate U-bars of different specifications for storage. It takes a long time for workers to find and identify them when they are used, and the U-bars are easily deformed due to mutual extrusion, collision or external force, which affects the installation accuracy and mechanical properties.

[0003] Therefore, it is necessary to design a box girder U-bar flipping device that can flip and stack the produced U-bars neatly. Summary of the invention

[0004] The main purpose of the present invention is to provide a box girder U-bar flipping device, which can effectively solve the problems raised in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A box girder U-bar flipping device comprises a discharging platform, a flipping and placing mechanism is provided at the rear end of the discharging platform, a storage mechanism is provided at the rear end of the flipping and placing mechanism, a plurality of finished U-bars are provided inside the storage mechanism, the upper end of the discharging platform is inclined, and a plurality of left-right symmetrical fan-shaped limit blocks are fixed to the inclined portion of the discharging platform.

[0007] Preferably, the flipping and placing mechanism includes a first carrier frame, the upper end of which is fixedly connected to two mutually symmetrical racks, the upper end of which is slidably connected to a translation frame, the upper end of which is fixedly installed with a first gantry frame, and the upper end of which is fixedly installed with two left-right symmetrical first motors, the output ends of the two first motors are fixedly connected with first gears, and the two first gears are respectively adapted to the racks on the corresponding sides.

[0008] Preferably, a rotating shaft is rotatably installed at the lower end of the horizontal part of the first gantry, a third gear is fixedly connected to the middle of the outer surface of the rotating shaft, a second motor is fixedly connected to the middle of the lower end of the horizontal part of the first gantry, a second gear is fixedly connected to the output end of the second motor, the third gear is meshed with the second gear, and mechanical clamps are provided on both sides of the outer surface of the rotating shaft.

[0009] Preferably, the material storage mechanism includes a second supporting frame, a second gantry is fixedly mounted on the upper end of the second supporting frame, a suspension frame is fixedly connected to the lower end of the horizontal part of the second gantry, and a plurality of material receiving components are fixedly connected to the upper end of the suspension frame.

[0010] Preferably, the material receiving assembly includes two third motors and two mounting bars which are symmetrical to each other on the left and right. The two third motors are fixedly mounted on the lower end of the suspension frame, and the two mounting bars are fixedly mounted on the side surfaces of the lower end of the suspension frame. Two ends of the two mounting bars which are away from each other are rotatably mounted with two pulleys arranged front and back, and a transmission assembly is commonly provided between the output end of the third motor and the pulley located on the front side.

[0011] Preferably, a transmission belt is wound around the two pulleys on the same side, a plurality of limit seats are fixedly connected to the outer surface of the transmission belt, and the bent portions at both ends of the finished U-rib are suspended between the plurality of limit seats.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] When the box girder U-bar flipping device is working, the flipping placement mechanism and the storage mechanism are set up, so that the U-bars of different specifications produced can be classified and stored separately, which not only greatly reduces the workers' searching time and improves the construction efficiency, but also prevents the U-bars from being squeezed, collided and deformed, and ensures the installation accuracy and mechanical properties. Moreover, the box girder U-bar flipping device is easy to operate, easy to use, and has a high degree of automation. It can reduce the labor intensity of workers, stabilize and optimize the stacking of U-bars, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a structural schematic diagram of the discharging platform of the present invention;

[0016] Figure 3 The structure diagram of the flip placement mechanism of the present invention is shown in FIG. Figure 1 ;

[0017] Figure 4 The structure diagram of the flip placement mechanism of the present invention is shown in FIG. Figure 2 ;

[0018] Figure 5 For the present invention Figure 3 The enlarged view of point A in the middle;

[0019] Figure 6 For the present invention Figure 3 The enlarged view of point B in the middle;

[0020] Figure 7For the present invention Figure 3 Enlarged view of point C in the middle;

[0021] Figure 8 It is a structural schematic diagram of the material storage mechanism of the present invention;

[0022] Fig. 9 For the present invention Figure 8 Enlarged view of point D in the middle.

[0023] In the figure: 1. discharge table; 2. flip placement mechanism; 3. storage mechanism; 4. finished product U-rib; 11. fan-shaped limit block; 21. first bearing frame; 22. rack; 23. translation frame; 24. first motor; 241. first gear; 26. first gantry; 27. second motor; 271. second gear; 28. rotating shaft; 281. third gear; 29. ​​mechanical gripper; 31. second bearing frame; 32. second gantry; 33. third motor; 34. transmission assembly; 35. suspension frame; 36. pulley; 37. mounting strip; 38. limit seat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 and Figure 2 As shown, the present invention provides a technical solution: a box girder U-bar flipping device, comprising a discharging platform 1, the upper end of the discharging platform 1 is inclined, and a plurality of left-right symmetrical fan-shaped limit blocks 11 are fixed to the inclined portion of the discharging platform 1. Before this process, there is a U-bar bending process, that is, bending the straight steel bar into the shape of the finished U-bar 4, and the processed finished U-bar 4 will be placed on the upper ends of the corresponding two fan-shaped limit blocks 11 according to its specifications. A flipping and placing mechanism 2 is provided at the rear end of the discharging platform 1, and the flipping and placing mechanism 2 is used to clamp, move, flip and hang the finished U-bar 4 placed on the upper end of the rear end of the discharging platform 1 in a storage mechanism 3. A storage mechanism 3 is provided at the rear end of the flipping and placing mechanism 2, and a plurality of finished U-bars 4 are provided inside the storage mechanism 3. The storage mechanism 3 can store finished U-bars 4 of different specifications.

[0026] Specifically, Figure 3-Figure 7As shown, the flip placement mechanism 2 includes a first carrier 21, the upper end of the first carrier 21 is fixedly connected to two mutually symmetrical racks 22, the upper end of the first carrier 21 is slidably connected to a translation frame 23, the upper end of the translation frame 23 is fixedly installed with a first gantry frame 26, and the upper end of the translation frame 23 is fixedly installed with two left-right symmetrical first motors 24, the output ends of the two first motors 24 are fixedly connected to first gears 241, and the two first gears 241 are respectively matched with the racks 22 on the corresponding side. Therefore, when the two first motors 24 work at the same time, the corresponding first gears 241 can be driven to rotate, and the first gears 241 and the racks 22 on the corresponding side are matched to drive the translation frame 23 and the overall structure of the upper end thereof to move forward or backward.

[0027] Furthermore, a rotating shaft 28 is rotatably mounted at the lower end of the horizontal part of the first gantry 26, a third gear 281 is fixedly connected to the middle of the outer surface of the rotating shaft 28, a second motor 27 is fixedly connected to the middle of the lower end of the horizontal part of the first gantry 26, a second gear 271 is fixedly connected to the output end of the second motor 27, the third gear 281 is meshed with the second gear 271, and mechanical clamps 29 are provided on both sides of the outer surface of the rotating shaft 28, and the mechanical clamps 29 are used to clamp the left and right sides of the finished U-rib 4. Therefore, when the second motor 27 is working, the third gear 281 will be driven to rotate through the second gear 271, thereby causing the rotating shaft 28 to rotate as a whole, driving the two mechanical clamps 29 to rotate.

[0028] It should be noted that if Figure 7 As shown, the mechanical clamp 29 is a prior art, which is composed of a plurality of telescopic cylinders, and the telescopic cylinders can control the telescopic movement of the clamp to clamp the finished U-rib 4. In addition, since only one type of finished U-rib 4 will be fixedly produced in one production cycle, the user can change the position of the mechanical clamp 29 on the outer surface of the rotating shaft 28 by manual adjustment, such as adjusting the fixed bolt to move the mechanical clamp 29, that is, to meet the effect of adapting to the left and right widths of finished U-ribs 4 of different specifications, so as to adapt to finished U-ribs 4 of different specifications in the production cycle. Of course, additional telescopic cylinders and other structures can be installed at both ends of the rotating shaft 28 according to the use requirements for installing the mechanical clamp 29, so as to achieve the purpose of automatically controlling the position of the mechanical clamp 29, but it will increase the cost. Therefore, the structure for changing the left and right position of the mechanical clamp 29 on the outer surface of the rotating shaft 28 is not specifically limited in the present invention.

[0029] In order to store the finished U-ribs 4, Figure 8 and Fig. 9As shown, the material storage mechanism 3 includes a second supporting frame 31, a second gantry 32 is fixedly installed on the upper end of the second supporting frame 31, a suspension frame 35 is fixedly connected to the lower end of the horizontal part of the second gantry 32, and a plurality of material receiving components are fixedly connected to the upper end of the suspension frame 35, each material receiving component is used to store finished U-ribs 4 of different specifications.

[0030] Specifically, the material receiving assembly includes two third motors 33 and two mounting bars 37 that are symmetrical to each other. The specifications of the finished U-ribs 4 for storage are different, so the specific positions of the third motors 33 and mounting bars 37 in different material receiving assemblies are partially different. The two third motors 33 are fixedly installed at the lower end of the suspension frame 35, and the two mounting bars 37 are fixedly installed on the side of the lower end of the suspension frame 35. The upper end of the mounting bar 37 needs to ensure that it is unobstructed from front to back and will not be blocked by the steel structure of the second gantry 32. The ends of the two mounting bars 37 that are away from each other are both rotatably installed with two pulleys 36 arranged front to back. A transmission assembly 34 is provided between the output end of the third motor 33 and the pulley 36 located at the front side. The transmission assembly 34 can be a structure such as a belt or a chain, so that the pulley 36 located at the front side and the output end of the third motor 33 can rotate synchronously, without specific limitation.

[0031] Furthermore, a transmission belt is wound around the two pulleys 36 on the same side, and a plurality of limit seats 38 are fixedly connected to the outer surface of the transmission belt. The bent parts at both ends of the finished U-rib 4 are suspended between the plurality of limit seats 38. Therefore, when the third motor 33 is working, the transmission assembly 34 can drive the pulley 36 on the front side to rotate synchronously, and the transmission belt can rotate continuously, and the plurality of limit seats 38 on the upper side can move backward, so that the plurality of suspended finished U-ribs 4 can move backward to make room for the flipping placement mechanism 2 to place subsequent finished U-ribs 4. The purpose of ensuring that the upper end of the mounting strip 37 is unobstructed is to allow the finished U-rib 4 to be taken out from the rear side of the storage mechanism 3.

[0032] The working principle of the present invention is as follows: first, after the processed finished U-rib 4 is placed on the upper rear end of the discharge table 1, the flip placement mechanism 2 starts to work, and the two first motors 24 cooperate with the first gear 241 and the rack 22 to drive the translation frame 23 and the structure at its upper end to move backward as a whole, until the two mechanical clamps 29 correspond to the positions of the two sides of the finished U-rib 4. At this time, the mechanical clamps 29 are started to clamp the two sides of the finished U-rib 4 to complete the material removal work, and then the two first motors 24 are driven to drive the translation frame 23 to move backward as a whole, and the movement When it moves to the halfway position of the stroke, starting the second motor 27 will rotate the rotating shaft 28 through the second gear 271, flipping the currently clamped finished U-rib 4 backwards, and then starting the two first motors 24 to drive the translation frame 23 to move backwards as a whole, placing the ends of the finished U-rib 4 on the upper sides of the corresponding two limit seats 38, and finally releasing the two mechanical clamps 29. The finished U-rib 4 will fall on the two limit seats 38, and will subsequently move backwards with the operation of the third motor 33, and the staff can remove the finished U-rib 4 from the rear side of the storage mechanism 3.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A box girder U-bar turning device, comprising a discharging platform (1), characterized in that: The rear end of the discharging platform (1) is provided with a flipping and placing mechanism (2), the rear end of the flipping and placing mechanism (2) is provided with a storage mechanism (3), a plurality of finished product U-ribs (4) are provided inside the storage mechanism (3), the upper end of the discharging platform (1) is inclined, and a plurality of left-right symmetrical fan-shaped limit blocks (11) are fixed to the inclined portion of the discharging platform (1).

2. A box girder U-bar turning device according to claim 1, characterized in that: The flip placement mechanism (2) comprises a first carrier frame (21), the upper end of the first carrier frame (21) is fixedly connected to two mutually symmetrical racks (22), the upper end of the first carrier frame (21) is slidably connected to a translation frame (23), the upper end of the translation frame (23) is fixedly mounted with a first gantry frame (26), the upper end of the translation frame (23) is fixedly mounted with two mutually symmetrical first motors (24), the output ends of the two first motors (24) are fixedly connected to a first gear (241), and the two first gears (241) are respectively matched with the racks (22) on the corresponding side.

3. A box girder U-bar turning device according to claim 2, characterized in that: A rotating shaft (28) is rotatably mounted at the lower end of the horizontal part of the first gantry (26); a third gear (281) is fixedly connected to the middle of the outer surface of the rotating shaft (28); a second motor (27) is fixedly connected to the middle of the lower end of the horizontal part of the first gantry (26); a second gear (271) is fixedly connected to the output end of the second motor (27); the third gear (281) is meshed with the second gear (271); and mechanical clamps (29) are provided on both left and right sides of the outer surface of the rotating shaft (28).

4. A box girder U-bar turning device according to claim 3, characterized in that: The material storage mechanism (3) comprises a second supporting frame (31), a second gantry (32) is fixedly mounted on the upper end of the second supporting frame (31), a suspension frame (35) is fixedly connected to the lower end of the horizontal part of the second gantry (32), and a plurality of material receiving components are fixedly connected to the upper end of the suspension frame (35).

5. A box girder U-bar turning device according to claim 4, characterized in that: The material receiving assembly comprises two third motors (33) and two mounting bars (37) which are symmetrical to each other. The two third motors (33) are fixedly mounted on the lower end of the suspension frame (35). The two mounting bars (37) are fixedly mounted on the side of the lower end of the suspension frame (35). Two pulleys (36) arranged front and back are rotatably mounted on the ends of the two mounting bars (37) which are away from each other. A transmission assembly (34) is provided between the output end of the third motor (33) and the pulley (36) located on the front side.

6. A box girder U-bar turning device according to claim 5, characterized in that: A transmission belt is wound around the two pulleys (36) on the same side, a plurality of limit seats (38) are fixedly connected to the outer surface of the transmission belt, and the bent portions at both ends of the finished U-rib (4) are suspended between the plurality of limit seats (38).

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