Welding seam defect detection auxiliary device

Abstract

The utility model discloses a welding seam defect detection auxiliary device, and relates to the field of welding seam detection.The welding seam defect detection auxiliary device comprises a first welding pipeline, a second welding pipeline is arranged at one end of the first welding pipeline, the first welding pipeline and the second welding pipeline are fixedly connected through a welding seam, and an ultrasonic flaw detector is arranged on one side of the first welding pipeline; the ultrasonic flaw detector is connected with a detection head in a wired mode, the detection head is provided with a movable detection mechanism, and an adjusting mechanism is arranged between the detection head and the first welding pipeline. The movable detection mechanism is taken out, the movable adjustment mechanism is fixed to the first welding pipeline or the second welding pipeline through the adjustment mechanism, the movable detection mechanism is located on one side of a welding seam, then the detection head is fixed to the movable detection mechanism, and then the movable detection mechanism is used for driving the detection head to move; therefore, the detection head can conveniently and stably move along the weld joint, and the possibility of inconvenience brought by holding the detection head to detect the weld joint is reduced.

Description

Technical Field

[0001] The present application relates to the field of weld detection, and in particular to a weld defect detection auxiliary device. Background Art

[0002] Welding technology is mainly used on metal base materials. Commonly used methods include arc welding, argon arc welding, CO2 shielded welding, oxygen-acetylene welding, laser welding, arc pressure welding, etc. Non-metallic materials such as plastics can also be welded. It is mainly divided into three categories: fusion welding, pressure welding and brazing. Fusion welding is a method of heating the interface of the workpiece to a molten state during the welding process and completing the welding without pressure. During fusion welding, the heat source quickly heats and melts the interface of the two workpieces to be welded to form a molten pool. The molten pool moves forward with the heat source, and after cooling, a continuous weld is formed to connect the two workpieces into one.

[0003] The welding mark after cooling is called a weld. In the welding of some pipelines, not only the adjacent pipelines must be welded together, but the welds at the welding points must also reach a certain strength to ensure that the welded pipelines can be used normally. When inspecting pipeline welds, professional ultrasonic flaw detectors are generally used to detect the welds.

[0004] When using an ultrasonic flaw detector to inspect the welds of a pipeline, the inspector usually holds the detection head of the ultrasonic flaw detector and moves it over the weld, and the detection head inspects the weld as it passes by. However, when the diameter of the welded pipeline is large, the detection range of the handheld detection head is limited, and the inspector needs to use tools such as ladders to climb up and inspect, which makes the inspection more troublesome. Utility Model Content

[0005] The purpose of the present application is to solve the problem raised in the above-mentioned background technology that when the diameter of the welded pipe is large, the detection range of the handheld detection head is limited, and the detection personnel need to use tools such as ladders to climb and detect, which makes the detection more troublesome. The present application provides a weld defect detection auxiliary device.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A weld defect detection auxiliary device comprises a welding pipeline 1, a welding pipeline 2 is arranged at one end of the welding pipeline 1, the welding pipeline 1 and the welding pipeline 2 are fixedly connected by a weld, an ultrasonic flaw detector is arranged on one side of the welding pipeline 1, a detection head is wiredly connected to the ultrasonic flaw detector, a mobile detection mechanism is arranged on the detection head, and an adjustment mechanism is arranged between the detection head and the welding pipeline 1.

[0008] By adopting the above technical solution, the mobile detection mechanism is taken out, and the mobile adjustment mechanism is fixed on the welding pipe one or the welding pipe two by using the adjustment mechanism, so that the mobile detection mechanism is located on one side of the weld, and then the detection head is fixed on the mobile detection mechanism, and then the mobile detection mechanism is used to drive the detection head to move, so that the detection head moves in a circle along the weld, and the ultrasonic flaw detector uses the detection head to detect the weld, so that the detection head can be easily and smoothly moved along the weld, reducing the possibility of inconvenience caused by holding the detection head to detect the weld.

[0009] Furthermore, the mobile detection mechanism includes a resistance block arranged on one side of the weld, the resistance block abuts on the welding pipe 2, a moving rope is arranged on the resistance block, one end of the moving rope is fixedly connected to the resistance block, the other end of the moving rope corresponds to the adjustment mechanism, a moving frame is arranged on the moving rope, a driving assembly is arranged between the moving frame and the moving rope, and a clamping assembly is arranged between the moving frame and the detection head.

[0010] By adopting the above technical solution, the moving rope is tightened on the welding pipe, the driving component on the moving frame is made to contact the pipe surface, and then the clamping component is used to clamp the detection head, and the moving frame is moved along the moving rope to drive the detection head to detect the weld, so that the detection head can be moved smoothly on the annular weld, the annular weld can be detected quickly, and the inconvenience caused by holding the detection head to detect the weld is reduced.

[0011] Furthermore, the driving assembly includes a driving wheel rotatably connected to the mobile frame, the moving rope passes through a side of the driving wheel away from the welding pipe, a driving motor is fixed on the mobile frame, the output end of the driving motor passes through the mobile frame and is fixedly connected to the driving wheel, and a battery is fixed on the mobile frame.

[0012] By adopting the above technical solution, the moving rope is passed between the driving wheel and the moving frame. When the moving rope is tightened, the driving wheel contacts the welding pipe 2, so that when the driving wheel rotates, the driving wheel can drive the moving frame to move.

[0013] Furthermore, the mobile frame is rotatably connected with four auxiliary wheels which are symmetrical in pairs.

[0014] By adopting the above technical solution, when the driving wheel drives the mobile frame to move, the auxiliary wheels on the mobile frame support the mobile frame, thereby reducing the deviation of the mobile frame and reducing the possibility of friction between the mobile frame and the welding pipe when moving.

[0015] Furthermore, the clamping assembly includes two support blocks symmetrically fixed on one side of the mobile frame, a bidirectional threaded rod is rotatably connected between the two support blocks, two symmetrical clamping blocks are threadedly connected to the bidirectional threaded rod, and the two clamping blocks correspond to the detection head.

[0016] By adopting the above technical solution, the detection head is placed between the two clamping blocks, and the bidirectional threaded rod is rotated to allow the two clamping blocks to clamp the detection head, thereby conveniently fixing the detection head.

[0017] Furthermore, the adjustment mechanism includes two adjustment blocks symmetrically fixed on the interference block, and two symmetrical adjustment rollers are rotatably connected to the two adjustment blocks. The end of the movable rope away from the interference block is located between the two adjustment rollers, and an adjustment knob is provided on one of the adjustment blocks, and a fixed component is provided between the adjustment knob and the adjustment block.

[0018] By adopting the above technical solution, the moving rope is allowed to contact one side of the two adjusting rollers. When the adjusting rollers rotate, the two adjusting rollers squeeze the moving rope and allow the moving rope to move between the two adjusting rollers, thereby making it convenient to adjust the length of the moving rope and fix the moving rope on the two surfaces of the welding pipe.

[0019] Furthermore, the fixing assembly includes a fixing rod rotatably connected to the adjusting block, the fixing rod passes through the adjusting block and is fixedly connected to one of the adjusting rollers, the fixing rod is slidably connected to the adjusting knob, a fixing ring is fixed on the adjusting block, the fixing ring is provided with evenly distributed fixing grooves, and a plurality of fixing teeth are fixed on the adjusting knob.

[0020] By adopting the above technical solution, the adjusting knob slides on the fixing rod, so that the fixing teeth on the adjusting knob are disengaged from the fixing grooves on the fixing ring, and then the adjusting knob is rotated, so that the adjusting knob can be kept stable when the adjusting knob is not rotated, thereby reducing the possibility of the moving rope loosening.

[0021] Furthermore, a fixing spring is provided between the adjusting block and the adjusting knob, and both ends of the fixing spring are fixedly connected to the adjusting block and the adjusting knob.

[0022] By adopting the above technical solution, the fixing spring pulls the adjusting knob, so that the fixing tooth remains stable when inserted into the fixing groove on the fixing ring, thereby reducing the possibility of the fixing tooth detaching from the fixing ring during use, causing the moving rope to loosen.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. The present application, by wrapping one end of the moving rope around the welding pipe No. 2, passing it through between the driving wheel and the moving frame, and finally passing it through the adjusting mechanism, and then allowing the resistance block to resist the surface of the welding pipe No. 2, and then using the adjusting mechanism to tighten the moving rope, allowing the moving rope to drive the driving wheel to resist the welding pipe No. 2, and then placing the detection head between the two clamping blocks, rotating the bidirectional threaded rod, allowing the two clamping blocks to clamp the detection head, allowing the detection head to face the weld, allowing the driving motor to drive the driving wheel to rotate, and then the driving wheel drives the moving frame to move along the surface of the welding pipe No. 2, the moving frame drives the two clamping blocks, and the two clamping blocks drive the detection head to move along the weld, allowing the detection head to detect the weld, thereby achieving the purpose of being able to facilitate the detection head to move smoothly on the annular weld, facilitating and quickly detecting the annular weld, and reducing the inconvenience caused by hand-held detection head to detect the weld.

[0025] 2. In the present application, after one end of the moving rope is wrapped around the second welding pipe for one circle, the moving rope is abutted between two adjusting rollers, and then the adjusting knob is slid on the fixed rod to disengage the fixing teeth on the adjusting knob from the fixing grooves on the fixed ring, and then the adjusting knob is rotated to drive the fixing rod, and the fixing rod drives the adjusting roller to rotate, so that the moving rope is squeezed by the two adjusting rollers, and then the moving rope moves on the two adjusting rollers, and the moving rope is tightened on the second welding pipe, so that the moving rope can be tightened conveniently, and at the same time, it is convenient to tighten the pipes with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a first three-dimensional structural schematic diagram of the auxiliary device in this application;

[0027] Figure 2 is a second three-dimensional structural schematic diagram of the auxiliary device in the present application;

[0028] Figure 3 This application Figure 1 Enlarged diagram of point A in the middle

[0029] Figure 4 This application Figure 2 The enlarged schematic diagram of point B in the middle;

[0030] Figure 5 This application Figure 2 Enlarged schematic diagram at point C in the middle.

[0031] Description of reference numerals:

[0032] 1. Welding pipe one; 2. Welding pipe two; 3. Welding seam; 4. Ultrasonic flaw detector; 5. Detection head; 6. Mobile detection mechanism; 61. Resistance block; 62. Mobile frame; 63. Mobile rope; 64. Driving assembly; 641. Driving wheel; 642. Driving motor; 643. Battery; 644. Auxiliary wheel; 65. Clamping assembly; 651. Support block; 652. Bidirectional threaded rod; 653. Clamping block; 7. Adjusting mechanism; 71. Adjusting block; 72. Adjusting roller; 73. Adjusting knob; 74. Fixing assembly; 741. Fixing rod; 742. Fixing ring; 743. Fixing tooth; 744. Fixing spring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 —5 Further details of this application are provided.

[0034] An embodiment of the present application discloses a weld defect detection auxiliary device.

[0035] Reference Figure 1 , Figure 2 and Figure 3 A welding defect detection auxiliary device includes a welding pipeline 1, a welding pipeline 2 is arranged at one end of the welding pipeline 1, the welding pipeline 1 and the welding pipeline 2 are fixedly connected by a weld 3, an ultrasonic flaw detector 4 is arranged on one side of the welding pipeline 1, a detection head 5 is wiredly connected to the ultrasonic flaw detector 4, a mobile detection mechanism 6 is arranged on the detection head 5, and an adjustment mechanism 7 is arranged between the detection head 5 and the welding pipeline 1.

[0036] When it is necessary to inspect the weld 3 on the welding pipe 1 and the welding pipe 2, the ultrasonic flaw detector 4 and the detection head 5 are first taken out, and then the mobile detection mechanism 6 is taken out, and the mobile adjustment mechanism 7 is fixed to the welding pipe 1 or the welding pipe 2 by using the adjustment mechanism 7, so that the mobile detection mechanism 6 is located on one side of the weld 3, and then the detection head 5 is fixed to the mobile detection mechanism 6, and then the mobile detection mechanism 6 is used to drive the detection head 5 to move, and the detection head 5 is moved in a circle along the weld 3, and the ultrasonic flaw detector 4 uses the detection head 5 to inspect the weld 3, and the detection head 5 of the ultrasonic flaw detector 4 is fixed to the mobile detection mechanism 6, and then the mobile detection mechanism 6 drives the detection head 5 to move in a circle along the welding pipe 1 or the welding pipe 2, so that the detection head 5 can be easily and smoothly moved along the weld 3, reducing the possibility of inconvenience caused by holding the detection head 5 to inspect the weld 3.

[0037] Reference Figure 2 , Figure 3 and Figure 4The mobile detection mechanism 6 includes a resistance block 61 arranged on one side of the weld 3, the resistance block 61 resists on the welding pipe 2, a moving rope 63 is arranged on the resistance block 61, one end of the moving rope 63 is fixedly connected to the resistance block 61, and the other end of the moving rope 63 corresponds to the adjustment mechanism 7, a moving frame 62 is arranged on the moving rope 63, a driving assembly 64 is arranged between the moving frame 62 and the moving rope 63, and a clamping assembly 65 is arranged between the moving frame 62 and the detection head 5.

[0038] In addition, the driving assembly 64 includes a driving wheel 641 rotatably connected to the mobile frame 62, the moving rope 63 passes through the driving wheel 641 away from the side of the welding pipe 1, a driving motor 642 is fixed on the mobile frame 62, the output end of the driving motor 642 passes through the mobile frame 62 and is fixedly connected to the driving wheel 641, and a battery 643 is fixed on the mobile frame 62.

[0039] In addition, the movable frame 62 is rotatably connected with four auxiliary wheels 644 which are symmetrical in pairs.

[0040] Moreover, the clamping assembly 65 includes two support blocks 651 symmetrically fixed on one side of the mobile frame 62, a bidirectional threaded rod 652 is rotatably connected between the two support blocks 651, and two symmetrical clamping blocks 653 are threadedly connected to the bidirectional threaded rod 652, and the two clamping blocks 653 correspond to the detection head 5.

[0041] First, one end of the moving rope 63 is wound around the welding pipe 2 2, passed between the driving wheel 641 and the moving frame 62, and finally passed through the adjusting mechanism 7, and then the abutment block 61 is abutted against the surface of the welding pipe 2 2, and then the moving rope 63 is tightened by the adjusting mechanism 7, so that the moving rope 63 drives the driving wheel 641 to abut against the welding pipe 2 2, and then the detection head 5 is placed between the two clamping blocks 653, and the two-way threaded rod 652 is rotated to allow the two clamping blocks 653 to clamp the detection head 5, so that the detection head 5 faces the weld 3, and then the driving motor 642 is started to allow the driving motor 642 to drive the driving wheel 641 to rotate, and then the driving wheel 64 1 drives the moving frame 62 to move along the surface of the welding pipe 2, and the auxiliary wheel 644 supports the moving frame 62, so that the moving frame 62 moves smoothly. The moving frame 62 drives the two clamping blocks 653, and the two clamping blocks 653 drive the detection head 5 to move along the weld 3, so that the detection head 5 detects the weld 3. The detection head 5 is clamped by the two clamping blocks 653, and then the moving frame 62 is moved along the moving rope 63, so that the detection head 5 detects the annular weld 3, so that the detection head 5 can be moved smoothly on the annular weld 3, the annular weld 3 can be detected quickly, and the inconvenience caused by holding the detection head 5 to detect the weld 3 is reduced.

[0042] Reference Figure 3 and Figure 5The adjustment mechanism 7 includes two adjustment blocks 71 symmetrically fixed on the interference block 61, and two symmetrical adjustment rollers 72 are rotatably connected to the two adjustment blocks 71. The end of the movable rope 63 away from the interference block 61 is located between the two adjustment rollers 72. An adjustment knob 73 is provided on one of the adjustment blocks 71, and a fixing component 74 is provided between the adjustment knob 73 and the adjustment block 71.

[0043] In addition, the fixing assembly 74 includes a fixing rod 741 rotatably connected to the adjusting block 71, the fixing rod 741 passes through the adjusting block 71 and is fixedly connected to one of the adjusting rollers 72, the fixing rod 741 is slidably connected to the adjusting knob 73, a fixing ring 742 is fixed on the adjusting block 71, the fixing ring 742 is provided with evenly distributed fixing grooves, and a plurality of fixing teeth 743 are fixed on the adjusting knob 73.

[0044] The fixing teeth 743 on the adjusting knob 73 are inserted into the fixing grooves on the fixing ring 742 so that the fixing rod 741 cannot rotate. By moving the two adjusting rollers 72 to move the moving rope 63, the moving rope 63 can be tightened along with the diameter of the pipe, so that it can be conveniently used on pipes with different diameters.

[0045] Reference Figure 3 and Figure 5 A fixing spring 744 is provided between the adjusting block 71 and the adjusting knob 73, and both ends of the fixing spring 744 are fixedly connected to the adjusting block 71 and the adjusting knob 73. After the fixing teeth 743 on the adjusting knob 73 are inserted into the fixing groove on the fixing ring 742, the fixing spring 744 pulls the adjusting knob 73 to keep the fixing teeth 743 stable when inserted into the fixing groove on the fixing ring 742. By limiting the adjusting knob 73 by the fixing spring 744, the fixing teeth 743 on the adjusting knob 73 are stably inserted into the fixing groove on the fixing ring 742, thereby reducing the possibility that the fixing teeth 743 will be separated from the fixing ring 742 during use, causing the moving rope 63 to loosen.

[0046] Working principle: when it is necessary to inspect the welds 3 on the welding pipe 1 and the welding pipe 2, first take out the ultrasonic flaw detector 4 and the detection head 5, then take out the mobile detection mechanism 6, first wrap one end of the mobile rope 63 around the welding pipe 2, pass it between the driving wheel 641 and the mobile frame 62, and finally touch one side of the two adjusting rollers 72, then let the adjusting knob 73 slide on the fixing rod 741, let the fixing teeth 743 on the adjusting knob 73 disengage from the fixing groove on the fixing ring 742, then turn the adjusting knob 73, let the adjusting knob 73 drive the fixing rod 741, let the fixing rod 741 drive the adjusting roller 72 to rotate, let the mobile rope 63 be squeezed by the two adjusting rollers 72, and then pass it between the two adjusting rollers 72, then the mobile rope 63 moves on the two adjusting rollers 72, and the mobile rope 63 is tightened on the welding On the pipe 2, let the driving wheel 641 on the moving rope 63 contact the welding pipe 2, then let the fixing tooth 743 on the adjusting knob 73 be inserted into the fixing groove on the fixing ring 742, so that the fixing rod 741 cannot rotate, and then put the detection head 5 between the two clamping blocks 653, rotate the two-way threaded rod 652, let the two clamping blocks 653 clamp the detection head 5, let the detection head 5 face the weld 3, and then start the driving motor 642, let the driving motor 642 drive the driving wheel 641 to rotate, and then the driving wheel 641 drives the moving frame 62 to move along the surface of the welding pipe 2, and at the same time the auxiliary wheel 644 supports the moving frame 62, so that the moving frame 62 moves smoothly, and the moving frame 62 drives the two clamping blocks 653, and the two clamping blocks 653 drive the detection head 5 to move along the weld 3, so that the detection head 5 detects the weld 3.

Claims

1. A weld defect detection auxiliary device, comprising a welding pipeline (1), characterized in that: A welding pipe 2 (2) is provided at one end of the welding pipe 1 (1), and the welding pipe 1 (1) and the welding pipe 2 (2) are fixedly connected by a weld (3). An ultrasonic flaw detector (4) is provided on one side of the welding pipe 1 (1), and a detection head (5) is wiredly connected to the ultrasonic flaw detector (4). A mobile detection mechanism (6) is provided on the detection head (5), and an adjustment mechanism (7) is provided between the detection head (5) and the welding pipe 1 (1).

2. A weld defect detection auxiliary device according to claim 1, characterized in that: The mobile detection mechanism (6) comprises a resistance block (61) arranged on one side of the weld (3), the resistance block (61) abuts against the second welding pipe (2), a moving rope (63) is arranged on the resistance block (61), one end of the moving rope (63) is fixedly connected to the resistance block (61), the other end of the moving rope (63) corresponds to the adjustment mechanism (7), a moving frame (62) is arranged on the moving rope (63), a driving component (64) is arranged between the moving frame (62) and the moving rope (63), and a clamping component (65) is arranged between the moving frame (62) and the detection head (5).

3. A weld defect detection auxiliary device according to claim 2, characterized in that: The driving assembly (64) comprises a driving wheel (641) rotatably connected to the moving frame (62); the moving rope (63) passes through the driving wheel (641) away from the side of the welding pipe (1); a driving motor (642) is fixed on the moving frame (62); an output end of the driving motor (642) passes through the moving frame (62) and is fixedly connected to the driving wheel (641); and a battery (643) is fixed on the moving frame (62).

4. A weld defect detection auxiliary device according to claim 3, characterized in that: The mobile frame (62) is rotatably connected to four auxiliary wheels (644) that are symmetrical in pairs.

5. A weld defect detection auxiliary device according to claim 2, characterized in that: The clamping assembly (65) comprises two support blocks (651) symmetrically fixed on one side of the mobile frame (62); a bidirectional threaded rod (652) is rotatably connected between the two support blocks (651); two symmetrical clamping blocks (653) are threadedly connected to the bidirectional threaded rod (652); the two clamping blocks (653) correspond to the detection head (5).

6. A weld defect detection auxiliary device according to claim 2, characterized in that: The adjustment mechanism (7) comprises two adjustment blocks (71) symmetrically fixed on the abutment block (61); two symmetrical adjustment rollers (72) are rotatably connected to the two adjustment blocks (71); one end of the moving rope (63) away from the abutment block (61) is located between the two adjustment rollers (72); an adjustment knob (73) is provided on one of the adjustment blocks (71); and a fixing component (74) is provided between the adjustment knob (73) and the adjustment block (71).

7. A weld defect detection auxiliary device according to claim 6, characterized in that: The fixing assembly (74) comprises a fixing rod (741) rotatably connected to the adjusting block (71); the fixing rod (741) penetrates the adjusting block (71) and is fixedly connected to one of the adjusting rollers (72); the fixing rod (741) is slidably connected to the adjusting knob (73); a fixing ring (742) is fixed to the adjusting block (71); the fixing ring (742) is provided with evenly distributed fixing grooves; and a plurality of fixing teeth (743) are fixed to the adjusting knob (73).

8. A weld defect detection auxiliary device according to claim 7, characterized in that: A fixing spring (744) is provided between the adjusting block (71) and the adjusting knob (73), and both ends of the fixing spring (744) are fixedly connected to the adjusting block (71) and the adjusting knob (73).

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