Mobile positioning trolley for welding U-rib plates of bridges

Abstract

The present invention relates to the field of U-rib plate mobile equipment, and in particular to a mobile positioning trolley for welding U-rib plates on bridges. Its technical solution includes: a frame and a universal drive wheel set installed at the four corners of the bottom of the frame; the frame is equipped with an adjustment device for fixing the U-rib plate and performing vertical linear motion; it also includes an adjustment device installed in the middle of the frame for fine-tuning the docking position of the U-rib plate, and a detection mechanism installed at the head and tail ends of the frame for measuring the flatness after the U-rib plates are docked. The present invention accelerates the docking process between the U-rib plates by lifting and moving the U-rib plate, and adjusting the docking position of the U-rib plate by fine-tuning; the trolley moves through the U-rib plate welding point to generate a pressure signal to determine whether the U-rib plate is aligned, thereby improving the docking accuracy and welding accuracy, and having a high degree of automation.

Description

Technical Field

[0001] The invention relates to the field of U-rib plate mobile equipment, in particular to a bridge U-rib plate welding mobile positioning trolley. Background Art

[0002] Bridge U-ribs are important components designed and installed on bridges during the construction process to make the bridge load evenly distributed and improve its bearing capacity.

[0003] Welding is required during the processing and production of the U-ribs of bridges. Since the U-ribs of bridges are too heavy, they are usually moved to the welding position by a crane. However, the shaking of the crane during the lifting process requires a lot of time to connect the U-ribs of bridges. Manual intervention may also be required to adjust the position of the U-ribs of bridges during the connection process. In addition, it is impossible to detect whether the connection position is aligned before welding, which results in extremely low efficiency and inability to guarantee the welding effect. Summary of the invention

[0004] In view of the problems existing in the background technology, the present invention proposes a welding mobile positioning trolley which can quickly align the U-rib plates of the bridge and detect the alignment effect of the U-rib plates of the bridge.

[0005] The technical solution of the present invention is as follows: a bridge U-rib welding mobile positioning trolley is used to move the U-rib to a specified position, comprising a frame and a universal driving wheel set installed at the four corners of the bottom of the frame;

[0006] The frame is provided with an adjusting device for fixing the U-rib plate and performing linear motion in a vertical direction;

[0007] It also includes an adjustment device installed in the middle of the frame for fine-tuning the butt joint position of the U rib plate, and a detection mechanism installed at the head and tail ends of the frame for measuring the flatness after the U rib plates are butt jointed.

[0008] Preferably, a plurality of reinforcing beams are arranged inside the frame, and a support for mounting the adjusting device is fixed between the reinforcing beams and the frame.

[0009] Preferably, the adjustment device comprises a second driving oil cylinder fixed to the upper surface of the support and a second electromagnetic chuck fixed to the end of the piston rod;

[0010] The second electromagnetic chuck can be fixed to the U rib by magnetic attraction after being energized.

[0011] Preferably, the adjustment device comprises a bracket, and a third driving cylinder fixed on the middle reinforcing beam, wherein the connecting end of the third driving cylinder is fixed to the bottom of the bracket and can drive the bracket to perform linear motion in a vertical direction;

[0012] It also includes a first driving oil cylinder symmetrically installed on the upper side of the frame, and a first electromagnetic suction cup magnetically fixed to the inner wall of the U-rib plate is installed at the end of the first driving oil cylinder.

[0013] Preferably, a plurality of balls that can contact the inner wall of the top surface of the U-rib plate are evenly embedded on the surface of the bracket.

[0014] Preferably, the detection mechanism comprises a flow diversion container fixed to the end of the frame through a connecting seat, and the flow diversion container is provided with a pneumatic telescopic detection component extending in different directions;

[0015] The telescopic end of the pneumatic telescopic detection assembly is equipped with a detection wheel in contact with the surface of the U rib plate through a wheel frame;

[0016] The diversion container is provided with a connecting pipe opening.

[0017] Preferably, the pneumatic telescopic detection assembly comprises a sleeve mounted on the diversion container and a telescopic rod movably inserted in the sleeve, and a spring mounting groove is provided at one end of the telescopic rod located in the sleeve;

[0018] The telescopic rod is connected to a piston which is interference-fitted with the inner wall of the sleeve via a spring, and a pressure sensor is provided on a side of the piston close to the telescopic rod;

[0019] The pressure sensor is used to monitor the telescopic rod and the pressure fluctuations generated therefrom.

[0020] Preferably, the pneumatic telescopic detection assembly further comprises an air pump installed on the upper side of the reinforcing beam, and the air pump is connected to a connecting pipe port on the diversion container via a pipeline.

[0021] Preferably, it also includes a control device, which has a communication module for receiving external instructions to control the operation of the trolley and at the same time feeding back the status of the trolley.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] The present invention lifts and moves the U-rib plate, and adjusts the docking position of the U-rib plate by fine-tuning, thereby accelerating the docking process between the U-rib plates, and improving the docking efficiency and automation.

[0024] The trolley moves through the U-rib welding position to generate a pressure signal to determine whether the U-rib is aligned, thereby improving the docking accuracy and welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a top view of an embodiment of the present invention is given;

[0026] Figure 2This is a schematic diagram of the top view of the structure of the present invention without the bracket;

[0027] Figure 3 It is a structural schematic diagram of the detection mechanism of the present invention moving along the U-rib plate during the detection process;

[0028] Figure 4 It is a structural schematic diagram of the pneumatic telescopic detection component of the detection mechanism in the present invention;

[0029] Reference numerals: 10 vehicle frame; 11 reinforcing beam; 12 control device;

[0030] 20 detection mechanism; 21 air pump; 22 sleeve; 23 connection seat; 24 diversion container; 25 telescopic rod; 26 wheel frame; 27 detection wheel; 28 piston; 29 pressure sensor; 210 spring;

[0031] 30 universal drive wheel set;

[0032] 40 first driving cylinder; 41 first electromagnetic chuck;

[0033] 50 second driving cylinder;

[0034] 60 second electromagnetic chuck;

[0035] 70 bracket; 71 ball;

[0036] 90 third driving cylinder;

[0037] 100U ribs. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0039] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "cross", "inside", "outside", "front", "back" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] Example

[0041] like Figure 1 and Figure 2As shown, the bridge U-rib welding mobile positioning trolley proposed by the present invention is used to move the U-rib 100 to a specified position, and includes a frame 10 and a universal driving wheel set 30 installed at the four corners of the bottom of the frame 10;

[0042] The universal driving wheel set 30 can rotate freely 360 degrees, so the universal driving wheel set 30 can drive the frame 10 to travel in multiple directions.

[0043] The frame 10 is provided with an adjusting device for fixing the U-rib plate 100 and performing linear motion in a vertical direction; specifically, the adjusting device comprises a second driving oil cylinder 50 fixed on the upper surface of the support and a second electromagnetic chuck 60 fixed on the end of the piston rod;

[0044] The second electromagnetic chuck 60 can be fixed to the U-rib 100 by magnetic attraction after being energized.

[0045] When the U-rib plate 100 is moved, the universal driving wheel set 30 first drives the frame 10 to enter under the U-rib plate 100, and then the second driving cylinder 50 works, and at the same time the second electromagnetic suction cup 60 is energized, so that the second electromagnetic suction cup 60 is magnetically fixed to the bottom inner wall of the U-rib plate 100, and as the second driving cylinder 50 continues to lift, the U-rib plate 100 can be lifted off the ground, and the movement of the universal driving wheel set 30 is coordinated to turn, move laterally and move longitudinally.

[0046] The bridge U-rib welding mobile positioning trolley also includes an adjustment device installed in the middle of the frame 10 for fine-tuning the docking position of the U-rib 100, and a detection mechanism 20 installed at the head and tail ends of the frame 10 for measuring the flatness after the U-rib 100 is docked.

[0047] A plurality of reinforcing beams 11 are arranged inside the vehicle frame 10 , and a support for installing the adjusting device is fixed between the reinforcing beams 11 and the vehicle frame 10 . The reinforcing beams 11 are used to improve the connection strength of the vehicle frame 10 .

[0048] The adjusting device includes a bracket 70 and a third driving cylinder 90 fixed on the middle reinforcing beam 11. The connecting end of the third driving cylinder 90 is fixed to the bottom of the bracket 70 and can drive the bracket 70 to make a vertical linear motion.

[0049] The vehicle frame 10 further includes a first driving cylinder 40 symmetrically mounted on the upper side of the vehicle frame 10 , and a first electromagnetic chuck 41 magnetically fixed to the inner wall of the U-rib 100 is mounted on the end of the first driving cylinder 40 .

[0050] A plurality of balls 71 that can contact the inner wall of the top surface of the U-rib plate 100 are evenly embedded on the surface of the bracket 70 .

[0051] Because when the mobile positioning trolley enters the bottom of the U-rib of the bridge, its center position cannot completely coincide with the center position of the U-rib of the bridge;

[0052] Therefore, the first electromagnetic suction cup 41 is driven by the first driving cylinder 40 to be magnetically connected to the inner wall of the U-rib plate 100, and then the third driving cylinder 90 drives the bracket 70 to move upward so that the ball 71 contacts the inner bottom wall of the U-rib plate 100, which supports the U-rib plate 100 on the one hand and facilitates the movement of the U-rib plate 100 on the other hand. Then the second electromagnetic suction cup 60 is powered off, and the U-rib plate 100 is adjusted to a position matching the connecting surface of another U-rib plate 100 through the cooperation between the first driving cylinder 40. The second electromagnetic suction cup 60 is powered on to fix the U-rib plate 100, and then the third driving cylinder 90 and the second driving cylinder 50 work synchronously to lower the U-rib plate 100 to complete the docking. The first driving cylinder 40, the second driving cylinder 50 and the third driving cylinder 90 work synchronously to make the occupied space of the trolley smaller than the internal space of the U-rib plate 100, so that the trolley can smoothly detach from the U-rib plate 100 or perform the next step of docking detection.

[0053] like Figure 3 and Figure 4 As shown, the detection mechanism 20 includes a flow dividing container 24 fixed to the end of the frame 10 through a connecting seat 23, and the flow dividing container 24 is provided with a pneumatic telescopic detection component extending in different directions;

[0054] The telescopic end of the pneumatic telescopic detection assembly is equipped with a detection wheel 27 in contact with the surface of the U rib 100 through a wheel frame 26;

[0055] The diversion container 24 is provided with a connecting pipe opening.

[0056] The pneumatic telescopic detection assembly includes a sleeve 22 mounted on a flow diversion container 24 and a telescopic rod 25 movably inserted in the sleeve 22, and a spring mounting groove is provided at one end of the telescopic rod 25 located in the sleeve 22;

[0057] The telescopic rod 25 is connected to a piston 28 which is interference-fitted with the inner wall of the sleeve 22 via a spring 210, and a pressure sensor 29 is provided on one side of the piston 28 close to the telescopic rod 25;

[0058] The pressure sensor 29 is used to monitor the telescopic rod 25 and the pressure fluctuations generated therefrom.

[0059] The pneumatic telescopic detection assembly also includes an air pump 21 installed on the upper side of the reinforcing beam 11, and the air pump 21 is connected to a connecting pipe port on the diversion container 24 through a pipeline.

[0060] After the U-rib 100 is butt-jointed, the air pump 21 is used to fill the flow diversion container 24 with gas to force the piston 28 to move sideways. At this time, since the detection wheel 27 has not reached the detection position, the pressure sensor 29 will contact the telescopic rod 25 to generate a pressure signal. This signal is not used as a basis for determining whether the butt joint of the U-rib 100 is flat.

[0061] When the detection wheel 27 moves to a certain position, the spring 210 rebounds to make the detection wheel 27 contact with the U-rib plate 100. At this time, the trolley moves in a straight line. When the detection wheel 27 moves to the docking position of the U-rib plate 100, there are the following two situations:

[0062] First, the docking position of the U-rib plate 100 is not flat. During the movement of the trolley, the misalignment of the U-rib plate 100 causes the detection wheel 27 to vibrate, which causes a sudden increase or decrease in the pressure signal.

[0063] Second, the U-rib plate 100 is flat at the docking position. During the movement of the trolley, since the U-rib plate 100 is relatively flat, the detection wheel 27 moves relatively smoothly and the generated pressure signal is also relatively stable; when the pressure signal is less than the preset value, welding can be performed.

[0064] The mobile positioning vehicle also includes a control device 12, which has a communication module for receiving external instructions to control the operation of the vehicle and provide feedback on the vehicle status.

[0065] It can be understood that the control device 12 is provided on the trolley to control the operation of the air pump 21, the third driving cylinder 90, the universal driving wheel group 30, the first driving cylinder 40, the first electromagnetic suction cup 41, the second driving cylinder 50 and the second electromagnetic suction cup 60, and at the same time feedback the working information of each device, such as the pressure information of the pressure sensor 29, etc. The monitoring and feedback of the information belong to the existing technology, so the principle will not be repeated here.

[0066] Another feature of the present invention is that energy supply equipment and inverters can be integrated on the frame 10 to supply energy to various electrical components to free them from the constraints of the line, and the operation of the vehicle can be controlled wirelessly to increase the freedom of the vehicle.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention are understood according to specific circumstances.

[0068] The above specific embodiments are only one or several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. The bridge U-rib welding mobile positioning trolley is used to move the U-rib to the specified position, which is characterized by: It includes a frame and universal drive wheel sets installed at the four corners of the bottom of the frame; The frame is provided with an adjusting device for fixing the U-rib plate and performing linear motion in a vertical direction; It also includes an adjustment device installed in the middle of the frame for fine-tuning the butt joint position of the U-rib plate, and a detection mechanism installed at both ends of the frame for measuring the flatness after the U-rib plates are butt jointed; A plurality of reinforcing beams are arranged inside the frame, and a support for installing an adjusting device is fixed between the reinforcing beams and the frame, wherein the adjusting device comprises a second driving oil cylinder fixed on the upper surface of the support and a second electromagnetic chuck fixed on the end of the piston rod; The second electromagnetic chuck can be fixed to the U rib plate by magnetic attraction after being energized; The adjustment device includes a bracket, and a third driving cylinder fixed on the middle reinforcing beam, wherein the connecting end of the third driving cylinder is fixed to the bottom of the bracket and can drive the bracket to perform linear motion in a vertical direction; It also includes a first driving oil cylinder symmetrically mounted on the upper side of the frame, the end of the first driving oil cylinder is mounted with a first electromagnetic suction cup fixed to the inner wall of the U-rib plate by magnetic attraction, and the surface of the bracket is evenly embedded with a plurality of balls that can contact the inner wall of the top surface of the U-rib plate; The detection mechanism comprises a flow-dividing container fixed to the end of the frame through a connecting seat, and the flow-dividing container is provided with a pneumatic telescopic detection component extending in different directions; The telescopic end of the pneumatic telescopic detection assembly is equipped with a detection wheel in contact with the surface of the U rib plate through a wheel frame; The diversion container is provided with a connecting pipe port; The pneumatic telescopic detection assembly comprises a sleeve mounted on the diversion container and a telescopic rod movably inserted in the sleeve, and a spring mounting groove is provided at one end of the telescopic rod located in the sleeve; The telescopic rod is connected to a piston which is interference-fitted with the inner wall of the sleeve via a spring, and a pressure sensor is provided on a side of the piston close to the telescopic rod; The pressure sensor is used to monitor the telescopic rod and the pressure fluctuations it generates; The pneumatic telescopic detection assembly also includes an air pump installed on the upper side of the reinforcing beam, and the air pump is connected to the connecting pipe port on the diversion container through a pipeline.

2. The bridge U-rib welding mobile positioning trolley according to claim 1 is characterized in that: It also includes a control device, which has a communication module for receiving external instructions to control the operation of the trolley and at the same time feeding back the status of the trolley.

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