A bridge welding quality detection device with intelligent feedback function

Abstract

The present invention discloses a bridge welding quality detection device with intelligent feedback function, which relates to the technical field of quality detection. The detection device comprises a driving mechanism, a welding quality detection mechanism and a feedback mechanism. The driving mechanism is connected to the welding quality detection mechanism, the driving mechanism is connected to the feedback mechanism, the welding quality detection mechanism is connected to the feedback mechanism, the welding quality detection mechanism is used to detect the welding parts of the bridge, and the feedback mechanism is used to grind or repair the defects of the welding parts of the bridge. The driving mechanism comprises a main driving device, and the main driving device comprises a driving roller, a first driving motor, a driving baffle, a lifting hydraulic cylinder and a driving lifting plate. Four driving rollers are provided, and the output end of the first driving motor is tightly connected to a driving roller.

Description

Technical Field

[0001] The invention relates to the technical field of quality detection, and in particular to a bridge welding quality detection device with an intelligent feedback function. Background Art

[0002] Bridges are important transportation infrastructure and are indispensable in transportation. Bridge welding is the process of combining steel beams into bridges through welding, which can reduce the material and labor costs of the connecting parts. Compared with mechanically connected bridges, welded bridges require less maintenance and help to achieve lightweight bridge structures.

[0003] In the process of bridge welding, it is inevitable that there will be too much or too little welding, which will affect the strength and stability of the structure to a certain extent. In long-term use, uneven force or stress concentration may occur, increasing the cost of maintenance and modification. Therefore, it is necessary to inspect the quality of the welding after it is completed.

[0004] Conventional testing mainly relies on manual inspections and manual recording, which not only has a large workload and low efficiency, but is also prone to errors, making it difficult to achieve comprehensive testing and impossible to achieve efficient testing. Summary of the invention

[0005] The purpose of the present invention is to provide a bridge welding quality detection device with intelligent feedback function to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The detection device includes a driving mechanism, a welding quality detection mechanism and a feedback mechanism. The driving mechanism is connected to the welding quality detection mechanism, the driving mechanism is connected to the feedback mechanism, the welding quality detection mechanism is connected to the feedback mechanism, the welding quality detection mechanism is used to detect the welding parts of the bridge, and the feedback mechanism is used to grind or repair the defects of the welding parts of the bridge.

[0008] In this detection device, the driving mechanism is used to drive the detection device to move to different bridge welding points for detection, and to detect the quality of the welding points through driving. The welding quality detection mechanism is used to detect the welding quality and provide real-time feedback to the feedback mechanism. The feedback mechanism is used to perform corresponding operations on the signals transmitted by the welding quality detection mechanism, and to grind or repair the welding points to make the welding points smooth.

[0009] Further, the driving mechanism includes a main driving device, which includes a driving roller, a first driving motor, a driving baffle, a lifting hydraulic cylinder and a driving lifting plate. There are four driving rollers, and the output end of the first driving motor is tightly connected to a driving roller. There are four driving baffles, and the driving baffle is rotatably connected to the driving roller. The fixed end of the first driving motor is tightly connected to a driving baffle. A slide groove is provided on the driving baffle. There are four lifting hydraulic cylinders, and the four lifting hydraulic cylinders are tightly connected to the bottom wall of the slide groove respectively. There are two driving lifting plates, and the driving lifting plate is connected to two driving baffles on the same side. The driving lifting plate is slidably connected to the slide groove, and the bottom of the driving lifting plate is tightly connected to the output ends of the two lifting hydraulic cylinders.

[0010] In the driving mechanism, the mechanism includes a main driving device, which is used to drive the entire detection device to move along the bridge, so that the detection device can detect the welding seams at different positions on the bridge. The driving roller is tightly connected to the output end of the first driving motor, and the driving roller is also rotatably connected to the driving baffle. After the first driving motor is started, the driving roller starts to rotate and moves with the driving baffle. A slide groove is provided on the driving baffle, and the driving lifting plate is slidably connected to the driving baffle through the slide groove, so that the driving lifting plate can move up and down along the slide groove. The fixed end of the lifting hydraulic cylinder is tightly connected to the bottom of the slide groove, and the output end is tightly connected to the bottom of the driving lifting plate. The lifting hydraulic cylinder can control the distance that the driving lifting plate moves up and down.

[0011] Furthermore, the driving mechanism also includes an auxiliary driving device, which is connected to the main driving device, connected to the driving lifting plate, and connected to the welding quality detection mechanism. The auxiliary driving device includes a support plate, a second driving motor, a driving shaft and a driven block. The support plate is fastened to the driving lifting plate, the fixed end of the second driving motor is fastened to the driving lifting plate, the output end of the second driving motor is fastened to the driving shaft, the end of the driving shaft away from the second driving motor is rotatably connected to the driving lifting plate, the driving shaft is provided with a thread, the driven block is provided with a circular through hole, the circular through hole of the driven block is provided with a thread, the driving shaft and the driven block are connected by threads, the driven block is connected to the welding quality detection mechanism, the auxiliary driving device is connected to the feedback mechanism, the support plate is connected to the feedback mechanism, and the driven block is connected to the feedback mechanism.

[0012] The driving mechanism also includes a sub-driving device. After the main driving device moves the detection device to the weld position, the driving device moves along the weld to facilitate real-time detection of the weld. The support plate and the driving lifting plate are tightly connected. The lifting hydraulic cylinder is started, so that when the driving lifting plate moves up or down on the slide, it can drive the supporting plate to move together. The second driving motor is also tightly connected to the driving lifting plate. The output end of the second driving motor is tightly connected to the driving shaft. The end of the driving shaft away from the second driving motor is rotatably connected to the driving lifting plate. After the second driving motor is started, it will rotate with the driving shaft. A driven block is threaded on the driving shaft, so the driven block will be moved along the direction of the driving shaft. The direction of movement is the path where the weld is located. Other devices are installed on it to perform real-time detection.

[0013] Further, the welding quality detection mechanism includes a fixed rod and a movable rod, the fixed rod and the bottom of the driven block are fastened together, the bottom of the fixed rod is open, a movable cavity is arranged in the fixed rod, the fixed rod and the movable rod are slidably connected, the movable rod and the inner wall of the movable cavity are slidably connected, the cross section of the movable rod is smaller than the cross section of the movable cavity, the welding quality detection mechanism also includes a movable roller and a metal magnetic block, the movable roller and the bottom of the movable rod are rotatably connected, the metal magnetic block and the top of the movable rod are fastened together, one end of the metal magnetic block is connected to the positive pole of the power supply, the metal magnetic block is connected to the fixed rod, the metal magnetic block and the inner wall of the movable cavity are slidably connected, the cross section of the metal magnetic block is consistent with the cross section of the movable cavity, a first connecting hole and a second connecting hole are arranged on the fixed rod, the first connecting hole and the second connecting hole pass through the movable cavity, the first connecting hole is placed above the second connecting hole, the fixed rod is connected to the feedback mechanism, the first connecting hole is connected to the feedback mechanism, and the second connecting hole is connected to the feedback mechanism;

[0014] Under normal conditions: the metal magnetic block is placed between the first connecting hole and the second connecting hole.

[0015] In the welding quality detection mechanism, the mechanism is used to detect the welding quality of the bridge, detect whether the welding point is flat, whether there is overflow or insufficient welding, in the welding quality detection mechanism, the fixed rod and the bottom of the driven block are tightly connected, the bottom of the fixed rod is open, and a moving cavity is arranged inside, the movable rod and the inner wall of the movable cavity are slidably connected, and a movable roller is arranged at the other end of the movable rod. When the second driving motor drives the driven block to move along the driving shaft rod, the movable roller will also start to rotate and move on the weld, and the movable rod and the movable cavity are slidably connected. When the movable roller rolls over a weld protrusion, the movable rod will move upward inside the movable cavity, and a metal magnet is tightly connected to the top of the movable rod. When moving upward, the metal magnet will reach the first connecting hole; when the movable roller rolls over a recessed area, the movable rod will move downward inside the movable cavity, and the metal magnet will move to the second connecting hole. Wires are installed on the first connecting hole and the second connecting hole, and the metal magnet moves to different positions to connect different circuits, so as to complete real-time feedback.

[0016] Further, the feedback mechanism includes a grinding device, which is connected to the support plate, the grinding device is connected to the driven block, a first wire is connected in the first connecting hole, the first wire is connected to the negative electrode of the power supply, the grinding device includes a third driving motor, a grinding head, a first pushing hydraulic cylinder and a first moving rail, the first moving rail is slidably connected to the support plate, the first moving rail and the driven block are fastened by a connecting rod, an end of the first moving rail away from the support plate is fastened to the ground where the moving roller passes, a fixed end of the first pushing hydraulic cylinder is fastened to an end of the first moving rail close to the support plate, an end of the first pushing hydraulic cylinder away from the first moving rail is fastened to the third driving motor, an output end of the third driving motor is fastened to the grinding head, and the grinding end of the grinding head faces the ground;

[0017] During grinding: the metal magnetic block contacts the first wire, the metal magnetic block, the first wire and two connection points of the power supply are electrically connected to form a grinding circuit, and the grinding device and the grinding circuit are turned on.

[0018] In the feedback mechanism, the mechanism is used to feedback the convexity and concavity of the bridge weld. The mechanism includes a grinding device, which is used to grind the convexity of the weld to make it flat. The first movable rail is slidably connected to the support plate, and the end of the first movable rail faces the weld. When the driven block moves, the first movable rail moves together to keep the speed consistent. The fixed end of the first push hydraulic cylinder is tightly connected to the first movable rail, and the output end is tightly connected to the third drive motor. The output end of the third drive motor is tightly connected with a grinding head. After the first push hydraulic cylinder is started, it will drive the first The three drive motors move along the first moving rail. After the third drive motor is started, it drives the grinding head to rotate, so that the protruding part of the weld can be polished. After the device is started, when the moving roller rolls to the protruding part of the weld, the metal magnet will move up due to the upward movement of the movable rod, and the metal magnet will move to the first connecting hole. A wire is provided on the first connecting hole. After the metal magnet moves here, the wire is connected to form a passage. At this time, the polishing device is started, the first push hydraulic cylinder moves downward, and the third drive motor is started, driving the grinding head to rotate, so as to polish the protruding part of the weld.

[0019] Further, the feedback mechanism also includes a repair welding device, which is connected to the support plate, the repair welding device is connected to the driven block, a second wire is connected in the second connecting hole, the second wire is connected to the negative electrode of the power supply, the repair welding device includes a welding gun, a second pushing hydraulic cylinder and a second movable rail, the second movable rail is slidably connected to the side of the support plate away from the first movable rail, the second movable rail and the driven block are fastened to each other through a connecting rod, the fixed end of the second pushing hydraulic cylinder is fastened to an end of the second movable rail close to the support plate, the output end of the second pushing hydraulic cylinder is fastened to the welding gun, and the welding head of the welding gun faces the ground, the repair welding device also includes a wire feeding device, the wire feeding device includes a welding wire, a rotating ring and a wire feeding rod, the wire feeding device is connected to the second movable rail, the rotating ring and the second movable rail are rotatably connected, the welding wire is wound on the rotating ring, the wire feeding rod is fastened to the second movable rail, the wire feeding rod is a hollow structure, and the wire feeding rod faces the ground;

[0020] During repair welding: the metal magnetic block contacts the second wire, the two connection points of the metal magnetic block, the second wire and the power supply are electrically connected to form a repair welding circuit, and the repair welding device and the repair welding circuit are turned on.

[0021] The feedback mechanism also includes a repair welding device, which is used to repair the concave part of the weld to make the weld smooth. The second movable rail is slidably connected to the support plate, the second pushing hydraulic cylinder is tightly connected to the second movable rail, the end of the second movable rail faces the weld, and the output end of the second pushing hydraulic cylinder is tightly connected to the welding gun. The welding gun can be driven to move on the second movable rail through the second pushing hydraulic cylinder to repair the concave part of the weld. At the same time, the wire is fed to the welding part through the wire feeding device, and the rotating ring is driven to rotate by the motor so that the welding wire is screwed out, and the wire feeding rod The path of the welding wire is specified so that the welding wire can smoothly reach the position where repair welding is required. After the device is started, when the moving roller rolls to the place where the weld is sunken, the metal magnet will move down due to the downward movement of the movable rod, and the metal magnet will move to the second connecting hole. A wire is arranged on the second connecting hole. After the metal magnet moves here, the wire is connected to form a passage. At this time, the repair welding device is started, the second push hydraulic cylinder moves downward, and the motor drives the rotating ring to rotate, so that the welding wire is screwed out and reaches the position where repair welding is required through the path specified by the wire feeding rod, and the welding gun repairs the sunken part of the weld.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: after the present invention is started, the main driving device is started, the detection device moves to the welding seam to prepare for detection, the rear lifting hydraulic cylinder is started, the lifting plate is driven to fall, and the moving roller contacts the bridge ground. At this time, the metal magnetic block is located between the first connecting hole and the second connecting hole, the auxiliary driving device is started, and the driven block moves along the driving shaft rod. The protrusions and depressions at the welding seam are detected by the movement of the movable rod. Since the height of the driven block remains unchanged, the moving roller can roll normally at the flat welding seam, and the movable rod and the metal magnetic block will not move up and down. When the moving roller rolls over the place with the welding seam protrusion, the moving roller will continue to move along the protrusion, and the movable rod will move. As the cavity moves upward, the metal magnet on the top of the movable rod will also move upward to the first connecting hole. At this time, the circuit is turned on, the grinding device is started, the first push hydraulic cylinder moves downward, and the third drive motor is started to rotate with the grinding head to grind the protruding part of the weld. When the moving roller rolls over the depressed place, the moving roller continues to move along the depression, and the movable rod will move downward inside the moving cavity. The metal magnet reaches the second connecting hole. At this time, the circuit is turned on, the repair welding device is started, the second push hydraulic cylinder moves downward, and the motor drives the rotating ring to rotate, and the welding wire is screwed out, and it passes through the path specified by the wire feeding rod to the position where repair welding is required. The welding gun repairs the depressed part of the weld to realize the detection and feedback of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a front view of the present invention;

[0025] Figure 3 It is a schematic diagram of a grinding device of the present invention;

[0026] Figure 4 It is a schematic diagram of the repair welding device of the present invention;

[0027] Figure 5 for Figure 4 Enlarged view of part A;

[0028] Figure 6 It is a schematic diagram of the initial state of the welding quality detection mechanism of the present invention;

[0029] Figure 7 A schematic diagram of a bulge detected by the welding quality detection mechanism of the present invention;

[0030] Figure 8 This is a schematic diagram of a depression detected by the welding quality detection mechanism of the present invention.

[0031] In the figure: 1. driving mechanism; 11. main driving device; 111. driving roller; 112. first driving motor; 113. driving baffle; 1131. slideway; 114. lifting hydraulic cylinder; 115. driving lifting plate; 12. auxiliary driving device; 121. supporting plate; 122. second driving motor; 123. driving shaft; 124. driven block; 2. welding quality detection mechanism; 21. fixing rod; 211. moving cavity; 212. first connecting hole; 21 3. Second connecting hole; 22. Movable rod; 23. Moving roller; 24. Metal magnet; 3. Feedback mechanism; 31. Grinding device; 311. Third driving motor; 312. Grinding head; 313. First pushing hydraulic cylinder; 314. First moving rail; 32. Repair welding device; 321. Welding gun; 322. Second pushing hydraulic cylinder; 323. Second moving rail; 324. Wire feeding device; 3241. Welding wire; 3242. Rotating ring; 3243. Wire feeding rod. DETAILED DESCRIPTION

[0032] 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.

[0033] Example: Figure 1-Figure 8 As shown, the present invention provides a technical solution for a bridge welding quality detection device with an intelligent feedback function. The detection device includes a driving mechanism 1, a welding quality detection mechanism 2 and a feedback mechanism 3. The driving mechanism 1 is connected to the welding quality detection mechanism 2, the driving mechanism 1 is connected to the feedback mechanism 3, the welding quality detection mechanism 2 is connected to the feedback mechanism 3, the welding quality detection mechanism 2 is used to detect the welding parts of the bridge, and the feedback mechanism 3 is used to grind or repair the defects of the welding parts of the bridge.

[0034] In this detection device, the driving mechanism 1 is used to drive the detection device to move to different bridge welding points for detection, and to detect the quality of the welding points through driving. The welding quality detection mechanism 2 is used to detect the welding quality and feedback it to the feedback mechanism 3 through real-time feedback. The feedback mechanism 3 is used to perform corresponding operations on the signal transmitted by the welding quality detection mechanism 2, and grind or repair the welding point to make the welding point smooth.

[0035] The driving mechanism 1 includes a main driving device 11, which includes a driving roller 111, a first driving motor 112, a driving baffle 113, a lifting hydraulic cylinder 114 and a driving lifting plate 115. There are four driving rollers 111, and the output end of the first driving motor 112 is fastened to a driving roller 111. There are four driving baffles 113, and the driving baffle 113 is rotatably connected to the driving roller 111. The fixed end of the first driving motor 112 is fastened to a driving baffle 113. A slide groove 1131 is provided on the driving baffle 113. There are four lifting hydraulic cylinders 114, and the four lifting hydraulic cylinders 114 are respectively fastened to the bottom wall of the slide groove 1131. There are two driving lifting plates 115, and the driving lifting plate 115 is connected to two driving baffles 113 on the same side. The driving lifting plate 115 is slidably connected to the slide groove 1131, and the bottom of the driving lifting plate 115 is fastened to the output ends of the two lifting hydraulic cylinders 114.

[0036] In the driving mechanism 1, the mechanism includes a main driving device 11, which is used to drive the entire detection device to move along the bridge, so that the detection device can detect the welding seams at different positions on the bridge. The driving roller 111 is tightly connected to the output end of the first driving motor 112, and the driving roller 111 is also rotatably connected to the driving baffle 113. After the first driving motor 112 is started, the driving roller 111 starts to rotate and moves with the driving baffle 113. The driving baffle 113 is provided with a slide groove 1131, and the driving lifting plate 115 is slidably connected to the driving baffle 113 through the slide groove 1131, so that the driving lifting plate 115 can move up and down along the slide groove 1131. The fixed end of the lifting hydraulic cylinder 114 is tightly connected to the bottom of the slide groove 1131, and the output end is tightly connected to the bottom of the driving lifting plate 115. The lifting hydraulic cylinder 114 can control the distance of the driving lifting plate 115 moving up and down.

[0037] The driving mechanism 1 also includes an auxiliary driving device 12, which is connected to the main driving device 11, and the auxiliary driving device 12 is connected to the driving lifting plate 115. The auxiliary driving device 12 is connected to the welding quality detection mechanism 2, and the auxiliary driving device 12 includes a support plate 121, a second driving motor 122, a driving shaft 123 and a driven block 124. The support plate 121 is fastened to the driving lifting plate 115, the fixed end of the second driving motor 122 is fastened to the driving lifting plate 115, and the output end of the second driving motor 122 is fastened to the driving shaft The rod 123 is tightly connected, and one end of the driving shaft 123 away from the second driving motor 122 is rotatably connected to the driving lifting plate 115. The driving shaft 123 is provided with a thread, and the driven block 124 is provided with a circular through hole. The circular through hole of the driven block 124 is provided with a thread. The driving shaft 123 and the driven block 124 are connected by threads, the driven block 124 is connected to the welding quality detection mechanism 2, the auxiliary driving device 12 is connected to the feedback mechanism 3, the support plate 121 is connected to the feedback mechanism 3, and the driven block 124 is connected to the feedback mechanism 3.

[0038] The driving mechanism 1 also includes a secondary driving device 12. After the main driving device 11 moves the detection device to the weld position, the driving device moves along the weld to facilitate real-time detection of the weld. The support plate 121 is tightly connected to the driving lifting plate 115. The lifting hydraulic cylinder 114 is started, so that when the driving lifting plate 115 moves up or down on the slide 1131, it can drive the supporting plate 121 to move together. The second driving motor 122 is also tightly connected to the driving lifting plate 115. The output end of the second driving motor 122 is tightly connected to the driving shaft 123. The end of the driving shaft 123 away from the second driving motor 122 is rotatably connected to the driving lifting plate 115. After the second driving motor 122 is started, it will rotate with the driving shaft 123. The driving shaft 123 is threaded with a driven block 124, so the driven block 124 will be driven to move along the direction of the driving shaft 123. The direction of movement is the path where the weld is located. Other devices are installed on it to perform real-time detection.

[0039] The welding quality detection mechanism 2 includes a fixed rod 21 and a movable rod 22. The fixed rod 21 is tightly connected to the bottom of the driven block 124. The bottom of the fixed rod 21 is open. A movable cavity 211 is arranged in the fixed rod 21. The fixed rod 21 and the movable rod 22 are slidably connected. The movable rod 22 is slidably connected to the inner wall of the movable cavity 211. The cross section of the movable rod 22 is smaller than the cross section of the movable cavity 211. The welding quality detection mechanism 2 also includes a movable roller 23 and a metal magnetic block 24. The movable roller 23 is rotatably connected to the bottom of the movable rod 22. The metal magnetic block 24 is tightly connected to the top of the movable rod 22. The metal magnetic block 2 4 is connected to the positive pole of the power supply, the metal magnetic block 24 is connected to the fixed rod 21, the metal magnetic block 24 is slidably connected to the inner wall of the moving cavity 211, the cross section of the metal magnetic block 24 is consistent with the cross section of the moving cavity 211, the fixed rod 21 is provided with a first connecting hole 212 and a second connecting hole 213, the first connecting hole 212 and the second connecting hole 213 pass through the moving cavity 211, the first connecting hole 212 is placed above the second connecting hole 213, the fixed rod 21 is connected to the feedback mechanism 3, the first connecting hole 212 is connected to the feedback mechanism 3, and the second connecting hole 213 is connected to the feedback mechanism 3;

[0040] In a normal state, the metal magnetic block 24 is placed between the first connecting hole 212 and the second connecting hole 213 .

[0041] In the welding quality detection mechanism 2, the mechanism is used to detect the welding quality of the bridge, to detect whether the welding part is flat, whether there is overflow or insufficient welding, in the welding quality detection mechanism 2, the fixed rod 21 and the bottom of the driven block 124 are tightly connected, the bottom of the fixed rod 21 is open, and a moving cavity 211 is provided inside, the movable rod 22 and the inner wall of the moving cavity 211 are slidably connected, and a moving roller 23 is provided at the other end of the movable rod 22. When the second driving motor 122 drives the driven block 124 to move along the driving shaft 123, the moving roller 23 will also start to rotate and move on the weld, and the movable rod 22 and the moving cavity 2 11 sliding connection, when the moving roller 23 rolls over the weld protrusion, the movable rod 22 will move upward inside the movable cavity 211, and the metal magnet 24 is fastened to the top of the movable rod 22. When moving upward, the metal magnet 24 will reach the first connecting hole 212; when the moving roller 23 rolls over the depression, the movable rod 22 will move downward inside the movable cavity 211, and the metal magnet 24 will reach the second connecting hole 213. Wires are installed on the first connecting hole 212 and the second connecting hole 213. The metal magnet 24 moves to different positions to connect different circuits, thereby completing real-time feedback.

[0042] The feedback mechanism 3 includes a grinding device 31, which is connected to the support plate 121, and the grinding device 31 is connected to the driven block 124. A first wire is connected in the first connecting hole 212, and the first wire is connected to the negative electrode of the power supply. The grinding device 31 includes a third driving motor 311, a grinding head 312, a first pushing hydraulic cylinder 313 and a first moving rail 314. The first moving rail 314 is slidably connected to the support plate 121, and the first moving rail 314 and the driven block 124 are fastened to each other through a connecting rod. One end of the first moving rail 314 away from the support plate 121 faces the ground through which the moving roller 23 passes. The fixed end of the first pushing hydraulic cylinder 313 is fastened to one end of the first moving rail 314 close to the support plate 121, and one end of the first pushing hydraulic cylinder 313 away from the first moving rail 314 is fastened to the third driving motor 311. The output end of the third driving motor 311 is fastened to the grinding head 312, and the grinding end of the grinding head 312 faces the ground.

[0043] During grinding: the metal magnetic block 24 contacts the first wire, the metal magnetic block 24, the first wire and two connection points of the power supply are electrically connected to form a grinding circuit, and the grinding device 31 is connected to the grinding circuit.

[0044] In the feedback mechanism 3, the mechanism is used to feedback the convexity and concavity of the bridge weld. The mechanism includes a grinding device 31, which is used to grind the convex part of the weld to make it flat. The first movable rail 314 is slidably connected to the support plate 121, and the end of the first movable rail 314 faces the weld. When the driven block 124 moves, the first movable rail 314 moves together to keep the speed consistent. The fixed end of the first push hydraulic cylinder 313 is tightly connected to the first movable rail 314, and the output end is tightly connected to the third drive motor 311. The output end of the third drive motor 311 is tightly connected with a grinding head 312. After the first push hydraulic cylinder 313 is started, it will drive the third The driving motor 311 moves along the first movable rail 314. After the third driving motor 311 is started, it drives the grinding head 312 to rotate, so that the protruding part of the weld can be grinded. After the device is started, when the moving roller 23 rolls to the protruding part of the weld, the metal magnet 24 will move up due to the upward movement of the movable rod 22, and the metal magnet 24 will move to the first connecting hole 212. A wire is provided on the first connecting hole 212. After the metal magnet 24 moves here, the wire is connected to form a passage. At this time, the grinding device 31 is started, the first push hydraulic cylinder 313 moves downward, and the third driving motor 311 is started, driving the grinding head 312 to rotate, so as to grind the protruding part of the weld.

[0045] The feedback mechanism 3 also includes a welding repair device 32, which is connected to the support plate 121, and the welding repair device 32 is connected to the driven block 124. A second wire is connected in the second connecting hole 213, and the second wire is connected to the negative electrode of the power supply. The welding repair device 32 includes a welding gun 321, a second pushing hydraulic cylinder 322 and a second movable rail 323. The second movable rail 323 is slidably connected to the side of the support plate 121 away from the first movable rail 314, and the second movable rail 323 is fastened to the driven block 124 through a connecting rod. The fixed end of the second pushing hydraulic cylinder 322 and the second movable rail 323 are close to the support plate 121. The output end of the second pushing hydraulic cylinder 322 is tightly connected to the welding gun 321, the welding head of the welding gun 321 faces the ground, the welding repair device 32 also includes a wire feeding device 324, the wire feeding device 324 includes a welding wire 3241, a rotating ring 3242 and a wire feeding rod 3243, the wire feeding device 324 is connected to the second movable rail 323, the rotating ring 3242 and the second movable rail 323 are rotatably connected, the welding wire 3241 is wound around the rotating ring 3242, the wire feeding rod 3243 and the second movable rail 323 are tightly connected, the wire feeding rod 3243 is a hollow structure, and the wire feeding rod 3243 faces the ground;

[0046] During repair welding: the metal magnetic block 24 contacts the second wire, the metal magnetic block 24, the second wire and two connection points of the power supply are electrically connected to form a repair welding circuit, and the repair welding device 32 is connected to the repair welding circuit.

[0047] The feedback mechanism 3 also includes a repair welding device 32, which is used to repair the concave part of the weld to make the weld smooth. The second movable rail 323 is slidably connected to the support plate 121, the second pushing hydraulic cylinder 322 is tightly connected to the second movable rail 323, the end of the second movable rail 323 faces the weld, the output end of the second pushing hydraulic cylinder 322 is tightly connected to the welding gun 321, and the second pushing hydraulic cylinder 322 can drive the welding gun 321 to move on the second movable rail 323 to repair the concave part of the weld. At the same time, the wire is fed to the welding part through the wire feeding device 324, and the rotating ring 3242 is driven by the motor to rotate so that the welding wire 3241 is screwed out, and the wire feeding rod 3 243 specifies the path of the welding wire 3241 so that the welding wire 3241 can smoothly reach the position where repair welding is required. After the device is started, when the moving roller 23 rolls to the place where the weld is recessed, the metal magnet 24 will move down due to the downward movement of the movable rod 22, and the metal magnet 24 will move to the second connecting hole 213. A wire is arranged on the second connecting hole 213. After the metal magnet 24 moves here, the wire is connected to form a passage. At this time, the repair welding device 32 is started, and the second pushing hydraulic cylinder 322 moves downward. The motor drives the rotating ring 3242 to rotate, and the welding wire 3241 is screwed out, and the path is specified by the wire feeding rod 3243 to the position where repair welding is required, and the welding gun 321 repairs the recessed part of the weld.

[0048] Working principle of the present invention: After the present invention is started, the main driving device 11 is started, the detection device moves to the welding seam to prepare for detection, the rear lifting hydraulic cylinder 114 is started, the lifting plate 115 is driven to fall, and the moving roller 23 contacts the bridge ground. At this time, the metal magnetic block 24 is located between the first connecting hole 212 and the second connecting hole 213, and the auxiliary driving device 12 is started. The driven block 124 moves along the driving shaft 123, and the protrusions and depressions at the welding seam are detected by the movement of the movable rod 22. Since the height of the driven block 124 remains unchanged, the moving roller 23 can roll normally at the flat welding seam, and the movable rod 22 and the metal magnetic block 24 will not move up and down. When the moving roller 23 rolls over the place with the weld protrusion, the moving roller 23 will continue to move along the protrusion, and the movable rod 22 moves upward inside the moving cavity 211. The metal magnetic block 24 on the top of the movable rod 22 will also move upward to the first connecting hole 212. At this time, the circuit is turned on, the grinding device 31 is started, the first pushing hydraulic cylinder 313 moves downward, and the third driving motor 311 is started to rotate with the grinding head 312 to grind the protruding part of the weld; when the moving roller 23 rolls over the depressed place, the moving roller 23 continues to move along the depression, and the movable rod 22 will move downward inside the moving cavity 211, and the metal magnetic block 24 reaches the second connecting hole 213. At this time, the circuit is turned on, the repair welding device 32 is started, the second pushing hydraulic cylinder 322 moves downward, and the motor drives the rotating ring 3242 to rotate, and the welding wire 3241 is screwed out, and the path is specified by the wire feeding rod 3243 to the position where repair welding is required, and the welding gun 321 repairs the depressed part of the weld to realize the detection and feedback of the weld.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A bridge welding quality detection device with intelligent feedback function, characterized in that: The detection device comprises a driving mechanism (1), a welding quality detection mechanism (2) and a feedback mechanism (3); the driving mechanism (1) is connected to the welding quality detection mechanism (2); the driving mechanism (1) is connected to the feedback mechanism (3); the welding quality detection mechanism (2) is connected to the feedback mechanism (3); the welding quality detection mechanism (2) is used to detect the welding part of the bridge; and the feedback mechanism (3) is used to grind or repair the defects of the welding part of the bridge; The welding quality detection mechanism (2) comprises a fixed rod (21) and a movable rod (22); the fixed rod (21) has an opening at the bottom, a movable cavity (211) is provided in the fixed rod (21), and the fixed rod (21) and the movable rod (22) are slidably connected; The welding quality detection mechanism (2) further comprises a movable roller (23) and a metal magnetic block (24); the movable roller (23) is rotatably connected to the bottom of the movable rod (22); the metal magnetic block (24) is firmly connected to the top of the movable rod (22); one end of the metal magnetic block (24) is connected to the positive electrode of the power supply; the metal magnetic block (24) is connected to the fixed rod (21); the metal magnetic block (24) is slidably connected to the inner wall of the movable cavity (211); and the cross section of the metal magnetic block (24) is substantially the same as that of the movable cavity (211). 1) The cross-sections are of the same size, the fixed rod (21) is provided with a first communicating hole (212) and a second communicating hole (213), the first communicating hole (212) and the second communicating hole (213) penetrate the movable cavity (211), the first communicating hole (212) is placed above the second communicating hole (213), the fixed rod (21) is connected to the feedback mechanism (3), the first communicating hole (212) is connected to the feedback mechanism (3), and the second communicating hole (213) is connected to the feedback mechanism (3); In a normal state: the metal magnetic block (24) is placed between the first connecting hole (212) and the second connecting hole (213); The feedback mechanism (3) comprises a grinding device (31), the grinding device (31) is connected to a support plate (121), the grinding device (31) is connected to a driven block (124), a first wire is connected to the first connecting hole (212), the first wire is connected to a negative pole of a power supply, the grinding device (31) comprises a third driving motor (311), a grinding head (312), a first pushing hydraulic cylinder (313) and a first moving rail (314), the first moving rail (314) is slidably connected to the support plate (121), the first moving rail (314) and the driven block (124) are connected to the first connecting hole (212), and the first connecting wire is connected to a negative pole of a power supply. The block (124) is fastened to each other via a connecting rod, one end of the first movable rail (314) away from the support plate (121) faces the ground through which the movable roller (23) passes, a fixed end of the first pushing hydraulic cylinder (313) is fastened to one end of the first movable rail (314) close to the support plate (121), one end of the first pushing hydraulic cylinder (313) away from the first movable rail (314) is fastened to the third driving motor (311), an output end of the third driving motor (311) is fastened to the grinding head (312), and a grinding end of the grinding head (312) faces the ground; During polishing: the metal magnetic block (24) is in contact with the first conductive wire, the metal magnetic block (24), the first conductive wire and two connection points of the power supply are electrically connected to form a polishing circuit, and the polishing device (31) is in conduction with the polishing circuit; The feedback mechanism (3) further comprises a repair welding device (32), wherein the repair welding device (32) is connected to the support plate (121), and the repair welding device (32) is connected to the driven block (124); a second wire is connected to the inside of the second connecting hole (213), and the second wire is connected to the negative electrode of the power supply; the repair welding device (32) comprises a welding gun (321), a second pushing hydraulic cylinder (322), and a second movable rail (323); the second movable rail (323) is slidably connected to a side of the support plate (121) away from the first movable rail (314); the second movable rail (323) and the driven block (124) are fastened to each other via a connecting rod; a fixed end of the second pushing hydraulic cylinder (322) is fastened to an end of the second movable rail (323) close to the support plate (121); an output end of the second pushing hydraulic cylinder (322) is fastened to the welding gun (321), and a welding head of the welding gun (321) faces the ground; During repair welding: the metal magnetic block (24) is in contact with the second wire, the metal magnetic block (24), the second wire and two connection points of the power source are electrically connected to form a repair welding circuit, and the repair welding device (32) is conductive to the repair welding circuit.

2. The bridge welding quality detection device with intelligent feedback function according to claim 1 is characterized in that: The driving mechanism (1) comprises a main driving device (11), wherein the main driving device (11) comprises a driving roller (111), a first driving motor (112), a driving baffle (113), a lifting hydraulic cylinder (114) and a driving lifting plate (115), wherein four driving rollers (111) are provided, wherein an output end of the first driving motor (112) is fixedly connected to a driving roller (111), wherein four driving baffles (113) are provided, wherein the driving baffles (113) and the driving roller (111) are rotatably connected, and wherein a fixed end of the first driving motor (112) is fixedly connected to a driving roller (111). It is fastened to a driving baffle (113), a slide groove (1131) is provided on the driving baffle (113), four lifting hydraulic cylinders (114) are provided, and the four lifting hydraulic cylinders (114) are fastened to the bottom wall of the slide groove (1131) respectively, two driving lifting plates (115) are provided, and the driving lifting plates (115) are connected to two driving baffles (113) on the same side, the driving lifting plates (115) are slidably connected to the slide groove (1131), and the bottom of the driving lifting plates (115) is fastened to the output ends of the two lifting hydraulic cylinders (114).

3. The bridge welding quality detection device with intelligent feedback function according to claim 2 is characterized in that: The driving mechanism (1) further comprises an auxiliary driving device (12), wherein the auxiliary driving device (12) is connected to the main driving device (11), the auxiliary driving device (12) is connected to the driving lifting plate (115), the auxiliary driving device (12) is connected to the welding quality detection mechanism (2), the auxiliary driving device (12) comprises a support plate (121), a second driving motor (122), a driving shaft (123) and a driven block (124), the support plate (121) is fixedly connected to the driving lifting plate (115), the fixed end of the second driving motor (122) is fixedly connected to the driving lifting plate (115), the output end of the second driving motor (122) is fixedly connected to the driving lifting plate (115), and the output end of the second driving motor (122) is fixedly connected to the driving shaft The rod (123) is tightly connected, one end of the driving shaft (123) away from the second driving motor (122) is rotatably connected to the driving lifting plate (115), the driving shaft (123) is provided with a thread, the driven block (124) is provided with a circular through hole, the circular through hole of the driven block (124) is provided with a thread, the driving shaft (123) and the driven block (124) are connected by threads, the driven block (124) is connected to the welding quality detection mechanism (2), the auxiliary driving device (12) is connected to the feedback mechanism (3), the support plate (121) is connected to the feedback mechanism (3), and the driven block (124) is connected to the feedback mechanism (3).

4. The bridge welding quality detection device with intelligent feedback function according to claim 3 is characterized in that: The fixed rod (21) and the bottom of the driven block (124) are tightly connected, the movable rod (22) and the inner wall of the moving cavity (211) are slidably connected, and the cross section of the movable rod (22) is smaller than the cross section of the moving cavity (211).

5. The bridge welding quality detection device with intelligent feedback function according to claim 1 is characterized in that: The repair welding device (32) further comprises a wire feeding device (324), the wire feeding device (324) comprising a welding wire (3241), a rotating ring (3242) and a wire feeding rod (3243), the wire feeding device (324) being connected to the second movable rail (323), the rotating ring (3242) being rotatably connected to the second movable rail (323), the welding wire (3241) being wound around the rotating ring (3242), the wire feeding rod (3243) being tightly connected to the second movable rail (323), the wire feeding rod (3243) being a hollow structure, and the wire feeding rod (3243) facing the ground.

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