Bridge welding quality detection device

Abstract

This utility model discloses a bridge welding quality inspection device, belonging to the field of bridge steel structure technology. It includes a workbench and a detector mounted above the workbench. Through the coordinated use of these devices, and with the clamping mechanism in place, an electric push rod is activated, pushing the clamping box to slide smoothly along the guide rod towards the workpiece. The guide rod precisely limits the offset trajectory. When the clamping plate contacts the workpiece, the baffle moves along with it and compresses the spring. The elastic potential energy of the spring is converted into a continuous clamping force, which is precisely transmitted to the clamping plate via the clamping rod. The clamping plate then adaptively adjusts its angle to fully conform to the workpiece surface, achieving a stable clamping state. The operator rotates the handle, causing the convex rod to rotate and press against the clamping rod to achieve a limit, completing the clamping. Even when facing irregularly shaped steel structures with irregular curves or concave-convex structures, effective clamping can be achieved, reducing the phenomenon of movement or shaking of the steel structure during the inspection process.

Description

Technical Field

[0001] This utility model relates to the field of bridge steel structure technology, specifically a bridge welding quality inspection device. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. When welding steel structures, non-destructive testing equipment is required to detect the welding quality.

[0003] Upon investigation, a utility model patent (publication number: CN220251823U) discloses a non-destructive testing device for the welding quality of bridge steel structures, including a workbench. A support frame is fixedly connected to the top of the workbench, and a conveyor is fixedly installed on the top of the workbench. Limiting mechanisms are provided on both the front and rear sides of the conveyor. A testing mechanism is provided on the top of the inner cavity of the support frame. A controller is fixedly connected to the right side of the front of the support frame, and support blocks are fixedly connected to the four corners of the bottom of the workbench.

[0004] In the aforementioned patent, the controller first manipulates the second electric push rod, so that the output end of the second electric push rod can drive the limiting push plate to move through the L-shaped plate until the L-shaped plate drives the limiting push plate to limit the steel structure, so as to prevent the position of the steel structure from deviating from the position detected by the equipment. However, the push plate can only clamp rectangular steel structures. For irregular steel structures with irregular curves or concave and convex parts, the push plate may only contact part of the surface and cannot firmly fix the steel structure in the detection position, causing the steel structure to move or shake during the detection process.

[0005] Therefore, this utility model provides a bridge welding quality inspection device to solve the above problems. Utility Model Content

[0006] This invention provides a bridge welding quality inspection device, which aims to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bridge welding quality inspection device, including a workbench, and further including: a detector disposed above the workbench, a detection probe fixedly installed at the bottom of the detector, two uprights fixedly installed on the top of the workbench, a conveyor disposed between the two uprights, and a clamping mechanism disposed on the uprights for clamping irregular steel structures.

[0008] The clamping mechanism includes a first electric push rod fixedly installed on one side of the two upright plates, a guide rod slidably installed inside the upright plates, a clamping box fixedly installed on one end of the guide rod, a through groove opened inside the clamping box, a clamping rod slidably installed inside the through groove, a baffle fixedly installed on the side surface of the clamping rod, a spring sleeved on the side surface of the clamping rod, a clamping plate hinged to one end of the clamping rod, a protrusion screwed inside the clamping box, and a handle fixedly installed on one end of the protrusion.

[0009] Preferably, the movable end of the first electric push rod passes through the upright plate and is fixedly connected to one side of the clamping box. Multiple through slots are provided, and the through slots are distributed in a linear array inside the clamping box.

[0010] Preferably, the baffle is elastically connected to the inner wall of one side of the through groove by a spring, and the side surface of the protruding rod is in contact with the top of the plurality of clamping rods.

[0011] Preferably, a fixed frame is fixedly connected to the top of the workbench, and two threaded rods are rotatably connected inside the fixed frame, with a movable plate screwed onto the side surface of the threaded rods.

[0012] Preferably, a second electric push rod is fixedly connected to the top of the movable plate, the movable end of the second electric push rod passing through the movable plate and fixedly connected to the top of the detector.

[0013] Preferably, a motor is fixedly connected to one side of the fixing frame, and the output end of the motor passes through one side of the fixing frame and is fixedly connected to one end of one of the threaded rods.

[0014] Preferably, the ends of the two threaded rods away from the motor pass through one side of the fixed frame and are fixedly connected to sprockets, with a chain drivingly connecting the two sprockets.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model has a simple structure and is easy to use. Through the setting of the clamping mechanism, the electric push rod is activated, which pushes the clamping box to slide smoothly along the guide rod towards the workpiece. The guide rod accurately limits the deviation trajectory. When the clamping plate contacts the workpiece, the baffle moves together and compresses the spring. The elastic potential energy of the spring is converted into a continuous clamping force, which is accurately transmitted to the clamping plate through the clamping rod. The clamping plate then adaptively adjusts its angle to fully fit the workpiece surface and achieve a stable clamping state. When the operator turns the handle, the convex rod rotates and squeezes the clamping rod to achieve the limit and complete the clamping. Even when facing irregularly shaped steel structures with irregular curves or concave and convex structures, it can achieve effective clamping and reduce the phenomenon of steel structure movement or shaking during the inspection process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the through groove of this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional schematic diagram of the clamping box in this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the installation of the clamping rod in this utility model.

[0017] In the picture: 1. Workbench; 2. Detector; 3. Detection probe; 4. Vertical plate; 5. Conveyor; 6. Clamping mechanism; 601. First electric push rod; 602. Guide rod; 603. Clamping box; 604. Through slot; 605. Clamping rod; 606. Baffle; 607. Spring; 608. Clamping plate; 609. Protruding rod; 610. Handle; 7. Fixing frame; 8. Threaded rod; 9. Moving plate; 10. Second electric push rod; 11. Sprocket; 12. Chain; 13. Motor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 6 As shown, this utility model provides a bridge welding quality inspection device. The bridge welding quality inspection device includes a workbench 1, and further includes: a detector 2 set above the workbench 1, a detection probe 3 fixedly installed at the bottom of the detector 2, two upright plates 4 fixedly installed on the top of the workbench 1, a conveying table 5 set between the two upright plates 4, and a clamping mechanism 6 set on the upright plates 4 for clamping irregular steel structures.

[0020] The clamping mechanism 6 includes a first electric push rod 601 fixedly installed on one side of the two upright plates 4, a guide rod 602 slidably installed inside the upright plate 4, a clamping box 603 fixedly installed on one end of the guide rod 602, a through groove 604 opened inside the clamping box 603, a clamping rod 605 slidably installed inside the through groove 604, a baffle 606 fixedly installed on the side surface of the clamping rod 605, a spring 607 sleeved on the side surface of the clamping rod 605, a clamping plate 608 hinged to one end of the clamping rod 605, a protrusion 609 screwed inside the clamping box 603, and a handle 610 fixedly installed on one end of the protrusion 609.

[0021] The movable end of the first electric push rod 601 passes through the vertical plate 4 and is fixedly connected to one side of the clamping box 603. Multiple through slots 604 are provided and are distributed in a linear array inside the clamping box 603.

[0022] The baffle 606 is elastically connected to the inner wall of one side of the through groove 604 via a spring 607, and the side surface of the protruding rod 609 is in contact with the top of multiple clamping rods 605.

[0023] The above scheme is adopted as follows: First, the irregular steel structure bridge welding component to be inspected is placed on the conveyor table 5. The conveyor table 5 transports the workpiece horizontally to the clamping area between the two vertical plates 4. Then, the first electric push rods 601 on both vertical plates 4 are started synchronously. Their movable ends push the clamping box 603 to slide smoothly towards the workpiece along the axial direction of the guide rod 602. The guide rod 602 effectively prevents the clamping box 603 from shifting during the movement. Multiple clamping plates 608 first contact the steel structure. The baffle 606 moves away from the steel structure along with the clamping rod 605 and compresses the spring 607. The elastic potential energy of the spring 607 is converted into clamping force, which is transmitted to the hinged clamping plates 608 through the clamping rod 605. Multiple clamping plates 608 The tilt angle is adaptively adjusted according to the surface contour of the irregular steel structure, closely fitting the protrusions or depressions of the workpiece to achieve all-round stable clamping of the irregular workpiece. The operator turns the handle 610, causing the protruding rod 609 to rotate clockwise inside the clamping box 603. Since the side surface of the protruding rod 609 is cam-shaped, it will squeeze multiple clamping rods 605 during its rotation, limiting the position of the multiple clamping rods 605. After clamping, the detector 2 and its bottom detection probe 3 are aligned with the weld seam of the workpiece, and the ultrasonic detection mode is activated. By emitting and receiving ultrasonic signals, the internal defects of the weld are fed back in real time. During the detection process, the conveyor table 5 remains stationary to ensure that the relative position of the detection probe 3 and the weld seam remains unchanged, thereby improving the detection accuracy.

[0024] like Figure 1 , Figure 2 and Figure 4As shown, in order to facilitate the movement of the detector 2, a fixed frame 7 is fixedly connected to the top of the workbench 1. Two threaded rods 8 are rotatably connected inside the fixed frame 7, and a movable plate 9 is screwed onto the side surface of the threaded rods 8.

[0025] A second electric push rod 10 is fixedly connected to the top of the movable plate 9. The movable end of the second electric push rod 10 passes through the movable plate 9 and is fixedly connected to the top of the detector 2.

[0026] The above scheme is adopted: by driving the threaded rod 8 to rotate, since the threaded rod 8 is screwed to the moving plate 9, its rotational motion is converted into the horizontal sliding of the moving plate 9 along the axial direction of the threaded rod 8, thereby driving the detector 2 to move in the horizontal direction. When it is necessary to adjust the height of the detector 2, the second electric push rod 10 is activated, and its movable end extends and retracts in the vertical direction, pushing the detector 2 to move up and down, so that the detection probe 3 accurately fits the different height positions of the weld seam surface. This bidirectional adjustment structure can quickly adjust the detector 2 to the optimal detection posture for weld seams distributed on different facades and at different elevations on the bridge steel structure, ensuring that the detection probe 3 and the weld seam maintain a stable relative position, thus improving the flexibility and efficiency of the detection.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, in order to facilitate the synchronous rotation of the two threaded rods 8, a motor 13 is fixedly connected to one side of the fixed frame 7. The output end of the motor 13 passes through one side of the fixed frame 7 and is fixedly connected to one end of one of the threaded rods 8.

[0028] The ends of the two threaded rods 8 away from the motor 13 pass through one side of the fixed frame 7 and are fixedly connected to sprockets 11. A chain 12 is connected between the two sprockets 11 for transmission.

[0029] The above scheme is adopted: the motor 13 is started, and the output end of the motor 13 drives one of the threaded rods 8 fixedly connected to it to rotate. Through the transmission action of the two sprockets 11 and the chain 12, the other threaded rod 8 rotates synchronously. Since both threaded rods 8 are screwed to the corresponding moving plates 9 and rotate in the same direction, the two moving plates 9 will slide horizontally synchronously along the axial direction of the threaded rods 8, thereby driving the detector 2 to maintain a stable and uniform movement in the horizontal direction, which improves the detection efficiency and reliability.

[0030] Working principle and usage process of this utility model: When using this bridge welding quality inspection device, the welded steel structure component to be inspected is first placed stably on the surface of the conveyor table 5. The drive device of the conveyor table 5 is then started, and the workpiece moves horizontally with the conveyor table 5 to the clamping area between the two vertical plates 4. The conveyor table 5 stops automatically. At this time, the weld seam of the workpiece is exactly in the middle of the two clamping boxes 603. The first electric push rods 601 on both vertical plates 4 are started simultaneously, and their movable ends push the clamping boxes 603 closer to the workpiece along the axial direction of the guide rods 602. Multiple clamping plates 608 first contact the surface of the workpiece. As the clamping boxes 603 continue to advance, the clamping rods 605 slide in the through grooves 604, driving the baffles 606 to compress the springs 607. The elastic potential energy of the springs 607 is converted into a continuous clamping force, which is transmitted to the hinged clamping plates 608 through the clamping rods 605. The clamping plates 608 adaptively adjust the tilt angle according to the irregular contour of the workpiece surface, closely fitting every concave and convex part of the workpiece to achieve all-round stable clamping. At this time, the operator turns the handle 610, which drives the cam 609 to rotate. The cam surface of the cam 609 gradually presses against the top of the multiple clamping rods 605, mechanically limiting the position of the clamping rods 605 to prevent the clamping force from decreasing due to the fatigue of the spring 607 during the detection process, and further ensuring the stability of the workpiece.

[0031] After clamping, the detector 2 needs to be adjusted to the optimal detection position. The motor 13 on one side of the mounting bracket 7 is then started. The output of motor 13 drives the threaded rod 8, which is fixedly connected to it, to rotate. Through the transmission action of two sprockets 11 and a chain 12, the other threaded rod 8 rotates synchronously. Since the threaded rod 8 is screwed to the moving plate 9, its rotational motion is converted into the horizontal sliding of the moving plate 9 along the axial direction of the threaded rod 8, thereby moving the detector 2 horizontally until the detection probe 3 is aligned with the center of the weld seam. At this point, the second electric push rod 10 is activated, its movable end extending vertically to push the detector 2 downwards. The detection probe 3 uses ultrasonic pulses. The impulse-reflection method emits high-frequency ultrasonic signals. When the ultrasonic waves propagate inside the weld, they are reflected when they encounter defects such as cracks, pores, and slag inclusions. The reflected signals are received by the detection probe 3 and converted into electrical signals, which are then transmitted to the display terminal of the detector 2. The display terminal displays the location, size, and type of defects inside the weld in real time through waveform analysis and image processing. Operators can visually monitor the detection process through the display terminal. During the detection process, the conveyor table 5 remains stationary, and the moving plate 9 and the second electric push rod 10 are locked to ensure that the relative position of the detection probe 3 and the weld remains unchanged, avoiding detection signal disorder caused by movement and improving detection accuracy.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge welding quality inspection device, comprising a workbench (1), characterized in that: Also includes: The detector (2) is set above the workbench (1), the detection probe (3) is fixedly installed at the bottom of the detector (2), two upright plates (4) are fixedly installed on the top of the workbench (1), the conveyor (5) is set between the two upright plates (4), and the clamping mechanism (6) is set on the upright plate (4) for clamping the irregular steel structure. The clamping mechanism (6) includes a first electric push rod (601) fixedly installed on one side of the two upright plates (4), a guide rod (602) slidably installed inside the upright plate (4), a clamping box (603) fixedly installed on one end of the guide rod (602), a through groove (604) opened inside the clamping box (603), a clamping rod (605) slidably installed inside the through groove (604), a baffle (606) fixedly installed on the side surface of the clamping rod (605), a spring (607) sleeved on the side surface of the clamping rod (605), a clamping plate (608) hinged to one end of the clamping rod (605), a protrusion (609) screwed inside the clamping box (603), and a handle (610) fixedly installed on one end of the protrusion (609).

2. The beam welding quality inspection device according to claim 1, characterized in that: The movable end of the first electric push rod (601) passes through the upright plate (4) and is fixedly connected to one side of the clamping box (603). Multiple through slots (604) are provided, and the through slots (604) are distributed in a linear array inside the clamping box (603).

3. The bridge welding quality inspection device according to claim 1, characterized in that: The baffle (606) is elastically connected to the inner wall of one side of the through groove (604) by a spring (607), and the side surface of the protruding rod (609) is in contact with the top of a plurality of clamping rods (605).

4. The bridge welding quality inspection device according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a fixed frame (7), and two threaded rods (8) are rotatably connected inside the fixed frame (7). A movable plate (9) is screwed onto the side surface of the threaded rods (8).

5. The bridge welding quality inspection device according to claim 4, characterized in that: The top of the movable plate (9) is fixedly connected to a second electric push rod (10), the movable end of the second electric push rod (10) passes through the movable plate (9) and is fixedly connected to the top of the detector (2).

6. The bridge welding quality inspection device according to claim 5, characterized in that: A motor (13) is fixedly connected to one side of the fixed frame (7). The output end of the motor (13) passes through one side of the fixed frame (7) and is fixedly connected to one end of one of the threaded rods (8).

7. The bridge welding quality inspection device according to claim 6, characterized in that: The ends of the two threaded rods (8) away from the motor (13) pass through one side of the fixed frame (7) and are fixedly connected to sprockets (11). A chain (12) is connected between the two sprockets (11).

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