Placing type fillet weld ultrasonic phased array detection automatic scanning device

Abstract

The utility model provides a placement type fillet weld ultrasonic phased array detection automatic scanning device. The placement type fillet weld ultrasonic phased array detection automatic scanning device comprises a fixing plate, a detection mechanism and a fixing mechanism, notches are formed in the lower ends of the fixing plates; the detection mechanism comprises four limiting gears, a gear ring, a telescopic rod and a detection probe, the four limiting gears are rotatably connected to the fixing plate around the four corners of the notch, the gear ring is meshed with the four limiting gears, the telescopic rod is connected to the gear ring, and the detection probe is arranged at the movable end of the telescopic rod; the fixing mechanism comprises a mounting frame fixedly arranged on the fixing plate, two clamping jaws movably connected to the mounting frame, two transmission rods with one ends movably connected with the two clamping jaws in a one-to-one correspondence mode, and an electric push rod movably connected with the other ends of the two transmission rods. According to the embodiment, the detection probe is driven by the gear ring to surround the to-be-detected pipeline, so that the convenience of the device is improved. And the telescopic rod adaptively stretches out and draws back to ensure the consistency of the distance between the detection probe and the welding seam and improve the detection quality of the welding seam.

Description

Technical Field

[0001] The utility model relates to the technical field of weld scanning devices, in particular to a placement-type fillet weld ultrasonic phased array automatic scanning device. Background Art

[0002] Weld scanning devices are important equipment for detecting weld quality. They are available in various types and functions to meet the needs of weld inspection for different materials, structures and application environments.

[0003] Among them, the most common weld scanning device is the ultrasonic phased array scanning device, which uses the propagation and reflection characteristics of ultrasonic waves in the medium to detect whether there are defects such as cracks, slag inclusions, and pores inside the weld.

[0004] However, when welding a weldment inside a pipeline, such detection devices in the prior art often require the equipment to rotate around the weld to ensure the accuracy of the inspection results. Such devices, such as the Chinese patent application CN220894232U entitled "Apparatus for Ultrasonic Phased Array Detection and Scanning of Fillet Welds of Pipes," can be used to circle the pipeline for inspection.

[0005] However, when used on pipes of different diameters, the distance between the probe and the pipe is not fixed and needs to be manually adjusted and calibrated, which is inconvenient to use.

[0006] Therefore, a new type of ultrasonic phased array inspection and scanning device for fillet welds is needed to solve the above technical problems. Utility Model Content

[0007] The content of this disclosure is intended to briefly introduce concepts that will be described in detail in the detailed description of the embodiments below. The content of this disclosure is not intended to identify key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0008] The utility model provides a placement-type fillet weld ultrasonic phased array detection automatic scanning device to solve the technical problems mentioned in the above background technology part.

[0009] The utility model provides a placement-type automatic scanning device for ultrasonic phased array detection of fillet welds, comprising a fixing plate, a detection mechanism provided on the fixing plate for detecting the pipeline to be inspected, and a fixing mechanism for clamping the pipeline to be inspected, wherein:

[0010] A notch is provided at the lower end of the fixing plate for accommodating the pipeline to be inspected;

[0011] The detection mechanism includes four limit gears, a gear ring, a telescopic rod, and a detection probe. The four limit gears are rotatably connected to the fixed plate around the four corners of the notch. The gear ring is engaged with the four limit gears. The telescopic rod is connected to the gear ring. The detection probe is set on the movable end of the telescopic rod.

[0012] The fixing mechanism includes a mounting frame fixed to the fixing plate and two clamping claws movably connected to the mounting frame, two transmission rods with one end movably connected to the two clamping claws in a one-to-one correspondence, and an electric push rod movably connected to the other end of the two transmission rods.

[0013] Optionally, a fixed block is fixed on the gear ring, the fixed block is connected to the telescopic rod, and the top end of the telescopic rod is provided with a roller that engages with the pipeline to be inspected.

[0014] Optionally, a spring is provided in the telescopic rod, and the spring causes the movable end of the telescopic rod to extend outward.

[0015] Optionally, the detection probe is movably screwed onto a fixing bracket via a thread, and the fixing bracket is fixedly connected to the movable end of the telescopic rod.

[0016] Optionally, the detection mechanism further includes two transmission gears, which are meshed with the two upper limit gears in a one-to-one correspondence.

[0017] Optionally, the two transmission gears are further engaged with a driving gear movably arranged on the upper end of the fixed plate.

[0018] Optionally, the detection mechanism further includes a motor fixed to the fixed plate, and the motor is connected to the driving gear.

[0019] Optionally, the clamping jaw is provided with a groove.

[0020] Optionally, the movable end of the electric push rod is connected to a movable block, and the movable block is rotatably connected to the other ends of the two transmission rods.

[0021] Optionally, an arc-shaped baffle is provided on the fixed plate, and the gear ring can be movably inserted into the arc-shaped baffle.

[0022] The above embodiments of the present invention have the following beneficial effects:

[0023] 1. The telescopic rod brings the detection probe close to the pipeline to be inspected. Even if the diameter of the pipeline to be inspected changes, the telescopic rod can be extended and retracted accordingly, so that the distance between the detection probe and the pipeline to be inspected is consistent. Therefore, when inspecting welds of pipelines with various diameters, the consistency of the distance between the detection probe and the weld can be guaranteed, so that the detection probe can be kept in the optimal detection distance area during inspection, thereby improving the inspection quality of the weld.

[0024] 2. When the limit gear rotates, it can drive the gear ring to perform circular motion, thereby driving the detection probe to rotate around the pipeline to be inspected. At this time, the detection probe can be used to detect the quality of the weld. This makes the entire inspection work convenient and fast, and the inspection work can be automatically carried out around the pipeline to be inspected.

[0025] 3. The contraction of the electric push rod can drive the two transmission rods to open outward, thereby driving the two clamping jaws to rotate relative to the mounting frame. In this way, the two clamping jaws can clamp pipes of different diameters to be inspected, improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the automatic scanning device for ultrasonic phased array detection of fillet welds of the present invention;

[0028] Figure 2 This is a front view of an embodiment of the automatic scanning device for ultrasonic phased array detection of fillet welds of the present invention;

[0029] Figure 3 This is a schematic diagram of the overall structure of an embodiment of the fixing mechanism of the present utility model;

[0030] Figure 4 This is a schematic diagram of the overall structure of an embodiment of the detection mechanism of the present utility model;

[0031] Figure 5 for Figure 4 Magnified view at point A in the middle.

[0032] Description of reference numerals:

[0033] 1: Fixed plate; 2: Limiting gear; 3: Gear ring; 4: Driving gear; 5: Transmission gear; 6: Fixed block; 7: Telescopic rod; 8: Fixed frame; 9: Detection probe; 10: Roller; 11: Mounting frame; 12: Clamping claw; 13: Electric push rod; 14: Movable block; 15: Transmission rod; 16: Motor; 17: Arc baffle. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a 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 making creative efforts are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0037] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0038] See also Figures 1 to 5 , Figure 1 This is a schematic diagram of the overall structure of an embodiment of the automatic scanning device for ultrasonic phased array detection of fillet welds of the present invention; Figure 2This is a front view of an embodiment of the automatic scanning device for ultrasonic phased array detection of fillet welds of the present invention; Figure 3 This is a schematic diagram of the overall structure of an embodiment of the fixing mechanism of the present utility model; Figure 4 This is a schematic diagram of the overall structure of an embodiment of the detection mechanism of the present utility model; Figure 5 for Figure 4 A magnified view of the middle point. Figures 1 to 5 As shown, the automatic scanning device for ultrasonic phased array inspection of fillet welds includes a fixed plate 1 with a notch at its lower end for placing the pipe to be inspected. A detection mechanism for inspecting the welds of the pipe to be inspected is provided on one surface of the fixed plate 1. The detection mechanism includes a limit gear 2, a gear ring 3, a driving gear 4, a transmission gear 5, a fixed block 6, a telescopic rod 7, a fixed frame 8, and a detection probe 9. Limit gears 2 are movably mounted at the four corners of the fixed plate 1 surrounding the notch, each of which is provided with a rotating shaft. A gear ring 3 is provided between the limit gears 2, and the gear ring 3 and the limit gear 2 are meshed with each other. A driving gear 4 is movably mounted at the middle of the upper end of the fixed plate 1, which is provided with a rotating shaft. Two transmission gears 5 are movably mounted on either side of the driving gear 4, and the driving gear 4 meshes with the two transmission gears 5. The two transmission gears 5 also mesh with the two limit gears 2 at the upper end in a one-to-one correspondence. A fixing block 6 is fixedly provided on the outer surface of the gear ring 3 , a telescopic rod 7 is fixedly provided under the fixing block 6 , a fixing frame 8 is fixedly provided on the movable end of the telescopic rod 7 , and a detection probe 9 is provided inside the fixing frame 8 .

[0039] The fixing plate 1 may be provided with an arc-shaped baffle 17 , and the gear ring 3 may be movably inserted into the arc-shaped baffle 17 .

[0040] Furthermore, a motor 16 is fixedly provided on the outer side of the fixing plate 1, and the output shaft end of the motor 16 is connected to the driving gear 4 through a coupling. The motor 16 can drive the driving gear 4 to rotate.

[0041] The movable end of the telescopic rod 7 is provided with a roller 10 through a rotating shaft, and can be fitted on the outer surface of the pipeline to be inspected through the roller 10. A spring can be provided inside the telescopic rod 7, and the movable end of the telescopic rod 7 is extended under the action of the spring.

[0042] In operation, the motor 16 drives the driving gear 4 to rotate, thereby driving the two driven gears 5 and the two upper limit gears 2 to rotate. The rotation of the two upper limit gears 2 drives the gear ring 3 to perform circular motion, thereby causing the roller 10 to rotate around the pipeline to be inspected, and the detection probe 9 to rotate around the pipeline to be inspected.

[0043] The surface of the fixed plate 1 is provided with a fixing mechanism, which includes a mounting frame 11, two clamping jaws 12, an electric push rod 13, a movable block 14, and two transmission rods 15. The mounting frame 11 is fixed to the fixed plate 1, and two clamping jaws 12 are provided on both sides of the bottom of the mounting frame 11 through a rotating shaft. The upper end of the mounting frame 11 is provided with an electric push rod 13. The movable end of the electric push rod 13 is fixed with a movable block 14. The front and rear sides of the movable block 14 are connected to the lower ends of the two transmission rods 15 through a rotating shaft ( Figure 3 direction), the upper ends of the two transmission rods 15 ( Figure 3 The upper ends of the two clamping jaws 13 are movably connected via a rotating shaft.

[0044] In the working state, the electric push rod 13 retracts, which can move the movable block 14 upward, so that the two transmission rods 15 open outward, thereby driving the clamping jaws 12 to rotate around the rotating shaft between the clamping jaws 12 and the mounting frame 11, so that the two clamping jaws 12 rotate inward, thereby clamping the pipeline to be inspected.

[0045] In this way, the entire device can be clamped and fixed on the outer surface of the pipeline to be inspected through the fixing mechanism, so that the detection probe 9 can be easily aligned with the weld for detection; the surface of the above-mentioned clamping jaw 12 is fixed with a groove, which can facilitate the clamping jaw 12 to clamp the pipeline to be inspected.

[0046] The detection probe 9 is arranged inside the fixing frame 8 through a threaded connection, and the position of the detection probe 9 can be rotated and fine-tuned up and down through the threaded connection.

[0047] Working principle: When weld inspection is required, the entire device can be fixed to the outer surface of the pipe to be inspected through the clamping jaws 12 in the fixing mechanism, so that the detection probe 9 is aligned with the weld. When clamping, the electric push rod 13 is retracted, so that the two clamping jaws 12 can be pushed to rotate and approach each other through the transmission rod 15 to clamp on the outer surface of the pipe to be inspected.

[0048] During testing, the motor 16 drives the driving gear 4 to rotate, thereby driving the driven gear and the limit gear 2 to rotate. The rotation of the limit gear 2 drives the gear ring 3 to perform a circular motion, thereby driving the detection probe 9 to rotate around the pipeline to be inspected. At this time, the detection probe 9 can perform weld quality inspection, making the entire inspection process convenient and quick, and the inspection can be automatically performed around the pipeline to be inspected.

[0049] When inspecting welds, the retraction length of the telescopic rod 7 will be different depending on the diameter of the pipeline to be inspected. When facing pipelines of various diameters to be inspected, after the telescopic rod 7 is extended and retracted, the roller 10 will be attached to the outer surface of the pipeline to be inspected, and the distance between the roller 10 and the detection probe 9 will always remain consistent. In this way, the distance between the detection probe 9 and the pipeline to be inspected is consistent. In this way, when inspecting welds of pipelines of various diameters to be inspected, the consistency of the distance between the detection probe 9 and the weld can be guaranteed, so that the detection probe 9 can be kept in the optimal detection distance area during inspection, and no manual adjustment is required, and it can be performed automatically, thereby improving the inspection quality of the weld.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A placement-type fillet weld ultrasonic phased array automatic scanning device, characterized in that: It includes a fixing plate, a detection mechanism provided on the fixing plate for detecting the pipeline to be inspected, and a fixing mechanism for clamping the pipeline to be inspected, wherein: A notch is provided at the lower end of the fixing plate for accommodating the pipeline to be inspected; The detection mechanism includes four limit gears, a gear ring, a telescopic rod, and a detection probe. The four limit gears are rotatably connected to the fixed plate around the four corners of the notch. The gear ring is engaged with the four limit gears. The telescopic rod is connected to the gear ring. The detection probe is set on the movable end of the telescopic rod. The fixing mechanism includes a mounting frame fixed to the fixing plate and two clamping claws movably connected to the mounting frame, two transmission rods with one end movably connected to the two clamping claws in a one-to-one correspondence, and an electric push rod movably connected to the other end of the two transmission rods.

2. The automatic scanning device for ultrasonic phased array detection of fillet welds according to claim 1 is characterized in that: A fixing block is fixed on the gear ring, and the fixing block is connected to the telescopic rod. The top end of the telescopic rod is provided with a roller engaged with the pipeline to be inspected.

3. The automatic scanning device for ultrasonic phased array detection of fillet welds according to claim 2 is characterized in that: A spring is provided in the telescopic rod, and the spring causes the movable end of the telescopic rod to extend outward.

4. The automatic scanning device for ultrasonic phased array detection of fillet welds according to claim 3 is characterized in that: The detection probe is movably screwed onto the fixing bracket through a thread, and the fixing bracket is fixedly connected to the movable end of the telescopic rod.

5. The automatic scanning device for ultrasonic phased array detection of fillet welds according to claim 1 is characterized in that: The detection mechanism further includes two transmission gears, which are meshed with the two upper limit gears in a one-to-one correspondence.

6. The automatic scanning device for ultrasonic phased array detection of fillet welds according to claim 5 is characterized in that: The two transmission gears are also meshed with a driving gear movably arranged on the upper end of the fixing plate.

7. The automatic scanning device for ultrasonic phased array detection of placed fillet welds according to claim 6 is characterized in that: The detection mechanism further includes a motor fixed to the fixing plate, and the motor is connected to the driving gear.

8. The automatic scanning device for ultrasonic phased array detection of fillet welds according to claim 1 is characterized in that: The clamping jaws are provided with grooves.

9. The automatic scanning device for ultrasonic phased array detection of fillet welds according to claim 1 is characterized in that: The movable end of the electric push rod is connected with a movable block, and the movable block is rotatably connected to the other ends of the two transmission rods.

10. The automatic scanning device for ultrasonic phased array detection of fillet welds according to claim 1, characterized in that: The fixed plate is provided with an arc-shaped baffle, and the gear ring can be movably inserted into the arc-shaped baffle.

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