A device and method for online detection of weld quality of welded pipe

Abstract

The present invention belongs to the technical field of weld detection; discloses an online detection device and method for weld quality of welded pipes, wherein the online detection device for weld quality of welded pipes comprises an arc plate, two arc plates are symmetrically arranged and fixedly connected to each other, a movable frame is movably connected to the arc plate, a control module is fixedly installed on the outer wall of the movable frame, a motion component is arranged in the movable frame, and mounting components are arranged on the front and rear side walls of the movable frame, a circular shell is arranged at the center position of the inner wall of the two arc plates, a driving component is arranged on one side of the circular shell close to the center of the arc plate, an adjusting component is arranged on the other side of the circular shell, and the other end of the adjusting component is connected to the corresponding arc plate; the present invention can perform online detection on the welding quality of the welded pipe, so as to timely discover the quality problems of the welded pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of weld detection, and in particular relates to an online detection device and method for weld quality of a welded pipe. Background Art

[0002] Welded pipe, which is the abbreviation of welded steel pipe, refers to a steel pipe made by curling steel plates or steel strips into round tubes or square tubes and then welding them. Due to its excellent performance and wide application fields, welded pipe has become an indispensable important material in modern industrial production and life. It can not only meet the use requirements in various complex environments, but also improve production efficiency, reduce costs, and bring convenience to people's production and life.

[0003] During the production and use of welded pipes, the quality of their welding will directly affect the safety and service life of the product; current weld quality detection mainly relies on manual inspection or offline detection using fixed equipment, both of which have obvious shortcomings; manual inspection is time-consuming and labor-intensive, relies on the experience and skills of the inspectors, and is prone to subjective judgment errors; although offline detection can provide detailed data analysis, since the detection process is decoupled from the welding process, it is impossible to promptly discover and correct problems in the welding process, which is not conducive to quality management and control; based on the above reasons, the present invention proposes an online detection device and method for weld pipe weld quality to solve the problems of the prior art. Summary of the invention

[0004] The main technical problem to be solved by the present invention is to provide an online detection device and method for the quality of weld seams of welded pipes, which can perform online detection of weld seams of welded pipes and can also detect butt welds of welded pipes, thereby improving the diversity of detection and the use effect; the detection process is convenient and accurate.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An online detection device for the quality of weld seams of welded pipes comprises an arc-shaped plate, wherein two arc-shaped plates are symmetrically arranged and fixedly connected to each other, a movable frame is movably connected to the arc-shaped plate, a control module is fixedly installed on the outer wall of the movable frame, a motion component is arranged in the movable frame, and mounting components are arranged on the front and rear side walls of the movable frame, a circular shell is arranged at the center position of the inner wall of the two arc-shaped plates, a driving component is arranged on one side of the circular shell close to the center of the arc-shaped plate, an adjusting component is arranged on the other side of the circular shell, and the other end of the adjusting component is connected to the corresponding arc-shaped plate.

[0007] The following is a further optimization of the above technical solution by the present invention:

[0008] The motion component includes a first motor, which is fixedly mounted on a movable frame. A power output end of the first motor passes through the movable frame and is fixedly connected to a first rotating shaft. A movable shaft is rotatably mounted in the movable frame. An end of the first rotating shaft away from the first motor is transmission-connected to the movable shaft via a first gear set. A circular wheel is fixedly mounted on the movable shaft near its middle position, and the circular wheel contacts the outer surface of the arc plate.

[0009] Further optimization: the installation assembly includes a fixed plate, two fixed plates are fixedly installed on the front and rear side walls of the movable frame, a mounting plate is arranged between the two fixed plates, two vertical rods are symmetrically and movably connected on the mounting plate, both ends of the vertical rods are respectively fixedly connected to the corresponding fixed plates, a threaded rod is threadedly connected to the mounting plate, both ends of the threaded rod are rotatably connected to the corresponding fixed plates, one end of the threaded rod passes through the corresponding fixed plate and is fixedly connected to an adjusting motor, and the adjusting motor is fixedly connected to the fixed plate.

[0010] Further optimization: the driving assembly includes a second motor, which is fixedly installed in the inner cavity of the circular shell. A second rotating shaft is fixedly connected to the power output end of the second motor. Worms are rotatably installed on both sides of the second rotating shaft in the inner cavity of the circular shell, and the second rotating shaft is connected to the worm gear through a second gear set.

[0011] Further optimization: two side grooves are symmetrically opened on the side wall of the circular shell, and horizontal plates are fixedly connected to the upper and lower sides of the side groove on the outer wall of the circular shell. The two corresponding horizontal plates are rotatably connected to the same vertical axis, and a worm gear is fixedly connected to the side wall of the vertical axis. The worm gear passes through the side groove and is meshed with the worm, and driving wheels are fixedly connected to both ends of the vertical axis.

[0012] Further optimization: the adjustment component includes an annular plate, which is rotatably connected to the outer wall of the circular shell, and a number of electric push rods are evenly distributed and fixedly installed on the annular plate, the telescopic ends of the electric push rods are fixedly connected to the inner wall of the arc plate, and a third motor is fixedly installed on the side wall of the annular plate, and a third rotating shaft is fixedly connected to the power output end of the third motor, and the third rotating shaft passes through the annular plate and is connected to the circular shell through a third gear set.

[0013] Further optimization: slots are provided on both ends of any one of the arc-shaped plates, plug blocks are fixedly connected to both ends of the other arc-shaped plate, the plug blocks are inserted into the slots and fixedly connected by fixing bolts;

[0014] The outer side walls of the two arc-shaped plates are both provided with arc-shaped grooves, and the inner side walls of the movable frame are both fixedly connected with sliding plates, which are inserted into the arc-shaped grooves and are slidably connected with the arc-shaped grooves.

[0015] Further optimization: the cross-section of the mounting plate is arranged in a Z shape, and a mounting position is arranged on the side of the mounting plate away from the movable frame, and the mounting position is used to install an external weld detection device.

[0016] Further optimization: the control module is provided with a data collection unit, a data storage unit, an analysis and processing unit, a wireless communication unit and a built-in power supply;

[0017] The data collection unit is used to collect the weld data of the welded pipe detected by the weld detection equipment;

[0018] The data storage unit is used to store the data collected by the data collection unit;

[0019] The analysis and processing unit is used to analyze and process the data information inside the data storage unit, and to realize automatic control based on the operation of the detection device;

[0020] The wireless communication unit is used to transmit the data processed by the analysis and processing unit to an external control host;

[0021] The built-in power supply is used to supply power to the detection device.

[0022] The present invention also provides a method for using the on-line detection device for weld seam quality of welded pipes. Based on the above-mentioned on-line detection device for weld seam quality of welded pipes, the method comprises the following steps:

[0023] S1: Install two curved plates together, insert the plug on one curved plate into the slot on the other curved plate, and fix the plug and the slot with fixing bolts, select a designated weld inspection device, including one or more of an ultrasonic detector, an eddy current detector, an infrared thermal imaging detector, and a high-definition camera, and fix the weld inspection device on the mounting plate to complete the installation operation of the weld inspection device;

[0024] S2: Then start the control module and the electric push rod. The electric push rod drives the annular plate to move. The annular plate drives the round shell to move toward the side close to the weld pipe, so that the driving wheel is pressed against the outer wall of the weld pipe, and the installation operation of the detection device on the weld pipe is completed. At the same time, the control module starts the adjustment motor according to the detection needs of various weld detection equipment. The adjustment motor drives the threaded rod to rotate, and the threaded rod drives the installation plate to move, so that the weld detection equipment on the installation plate moves to a specified spacing position from the weld pipe;

[0025] S3: starting the first motor to drive the first rotating shaft to rotate, and the first rotating shaft drives the movable shaft to rotate through the first gear set, so that the round wheel on the movable shaft moves on the outer wall of the arc plate, so as to move the welding detection equipment on the movable frame to a specified position on the welded pipe;

[0026] S4: starting the third motor to drive the third rotating shaft to rotate, the third rotating shaft drives the round shell to rotate through the third gear set, so that the driving wheel rotates to a position parallel to the welded pipe, stopping the rotation of the third motor, and starting the second motor to drive the second rotating shaft to rotate, the second rotating shaft drives the worm to rotate through the second gear set, the worm meshes with the worm wheel to rotate, and the worm wheel drives the driving wheels at both ends of the vertical shaft to rotate, so that the detection device moves on the outer wall of the welded pipe, so as to complete the detection operation of the weld on the welded pipe;

[0027] S5: When the detection device moves to the butt weld position of the two welded pipes, the movement of the second motor is stopped, and the electric push rod and the third motor are started. The electric push rod drives the round shell to move, so that the driving wheel is separated from the outer wall of the welded pipe, and under the drive of the third motor, the driving wheel moves to the position corresponding to the welded pipe, and the electric push rod is started again to press the driving wheel against the outer wall of the welded pipe, completing the automatic positioning operation of the detection device for the weld;

[0028] S6: Starting the first motor again to drive the first rotating shaft to rotate, and the first rotating shaft drives the movable shaft to rotate through the first gear set, so that the round wheel on the movable shaft moves on the outer wall of the arc plate, and the butt welds of the two welded pipes are inspected by the weld inspection device;

[0029] S7: During the operation of the weld inspection device, the detected data is transmitted to the data collection unit inside the control module, the data collected by the data collection unit is stored in the data storage unit, and the weld inspection data inside the data storage unit is analyzed and processed by the analysis and processing unit, and the processed weld inspection data is uploaded to the external host through the wireless transmission unit. The operator can realize the online inspection operation of the weld quality of the welded pipe by analyzing the received data;

[0030] S8: After the weld inspection of a welded pipe at one position is completed, the above S3-S7 are repeated to enable the inspection device to perform automatic online inspection operations on the welded pipe.

[0031] The present invention adopts the above technical solution and has the following beneficial effects:

[0032] 1. The present invention can be applied to weld detection operations on welded pipes of different specifications through the coordinated work of the motion component, the drive component and the adjustment component, and the rotation direction of the drive wheel can be adjusted by driving the third motor, so that the detection device can not only detect the weld of the welded pipe itself, but also detect the butt weld on the welded pipe, thereby improving the diversity of the detection operation. Then, by driving the first motor, the round wheel can be moved on the outer wall of the arc plate, and the movement of the round wheel can drive the weld detection device to perform position adjustment operations, thereby improving the accuracy of weld detection. Based on the above operations, the detection efficiency of the weld of the welded pipe can be effectively improved, and the use effect can be improved.

[0033] 2. When the weld detection equipment in the present invention is in operation, the detected data is transmitted to the data collection unit inside the control module, the data collected by the data collection unit is stored in the data storage unit, and the weld detection data inside the data storage unit is analyzed and processed by the analysis and processing unit, and the processed weld detection data is uploaded to the external host through the wireless transmission unit. The operator can perform online detection operation on the weld quality of the welded pipe by analyzing the received data, so as to timely discover the quality problems of the welded pipe.

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional diagram of the overall structure of an embodiment of the present invention;

[0036] Figure 2 A three-dimensional diagram of the overall structure from another perspective in an embodiment of the present invention;

[0037] Figure 3 A three-dimensional diagram of the movable frame in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of the circular shell in an embodiment of the present invention;

[0039] Figure 5 It is a cross-sectional view of the circular shell in the embodiment of the present invention;

[0040] Figure 6 A cross-sectional view of the circular shell from another perspective in an embodiment of the present invention;

[0041] Figure 7 It is a schematic diagram of the structure of the motion component in an embodiment of the present invention;

[0042] Figure 8 Schematic diagram of the internal three-dimensional structure of the curved plate in an embodiment of the present invention.

[0043] In the figure: 1-arc plate; 2-movable frame; 3-control module; 4-movement component; 5-installation component; 6-round shell; 7-drive component; 8-adjustment component; 9-first motor; 10-first rotating shaft; 11-first bevel gear; 12-second bevel gear; 13-movable shaft; 14-round wheel; 15-fixed plate; 16-installation plate; 17-vertical rod; 18-threaded rod; 19-adjustment motor; 20-second motor; 21-second rotating shaft; 22-first gear; 23-second gear; 24-worm; 25-cross plate; 26-vertical shaft; 27-worm wheel; 28-drive wheel; 29-annular plate; 30-electric push rod; 31-third motor; 32-third rotating shaft; 33-third gear; 34-annular gear; 35-insert block; 36-fixing bolt; 37-arc groove; 38-slide plate. DETAILED DESCRIPTION

[0044] like Figure 1-8 As shown, an online detection device for the weld quality of a welded pipe comprises an arc plate 1, wherein two arc plates 1 are symmetrically arranged and fixedly connected to each other, a movable frame 2 is movably connected to the arc plate 1, a control module 3 is fixedly installed on the outer wall of the movable frame 2, a motion component 4 is arranged in the movable frame 2, and mounting components 5 are arranged on the front and rear side walls of the movable frame 2, a round shell 6 is arranged at the center position of the inner wall of the two arc plates 1, a driving component 7 is arranged on one side of the round shell 6 close to the center of the arc plate 1, an adjusting component 8 is arranged on the other side of the round shell 6, and the other end of the adjusting component 8 is connected to the corresponding arc plate 1.

[0045] In this embodiment, slots are provided on both ends of any one of the arc-shaped plates 1 , and plug blocks 35 are fixedly connected to both ends of the other arc-shaped plate 1 , and the plug blocks 35 are inserted into the slots.

[0046] In this embodiment, threaded holes are respectively opened on the arc-shaped plate 1 with a slot near its two ends, and the inner ends of the threaded holes are connected to the slots. Circular holes are respectively opened on the plug block 35. After the plug block 35 is inserted into the slot, the threaded hole and the circular hole are coaxially arranged, and a fixing bolt 36 is connected to the thread in the threaded hole. The plug block 35 and the slot are fixedly connected by the fixing bolt 36.

[0047] In this embodiment, the two arc plates 1 are butt-jointed and installed together, so that the plug block 35 on one side of the arc plate 1 is inserted into the slot on the other side of the arc plate 1, and the fixing bolt 36 is screwed into the plug block 35 to achieve a fixed connection between the plug block 35 and the slot, thereby completing the butt-joint fixation between the two arc plates 1, which is convenient for assembly and installation.

[0048] The outer side walls of the two arc-shaped plates 1 are both provided with arc-shaped grooves 37 , and the inner side walls of the movable frame 2 are both fixedly connected with slide plates 38 , which are inserted into the arc-shaped grooves 37 and are slidably connected with each other.

[0049] With such a design, the movable frame 2 is slidably installed on the arc plate 1 through the cooperation of the slide plate 38 and the arc groove 37, which is convenient for assembly and installation. The slide plate 38 moves in the arc groove 37, so that the movable frame 2 can move stably on the arc plate 1, which facilitates the precise position adjustment operation of the movable frame 2.

[0050] The motion component 4 includes a first motor 9, which is fixedly mounted on the movable frame 2. The power output end of the first motor 9 passes through the movable frame 2 and is fixedly connected to a first rotating shaft 10. A movable shaft 13 is rotatably mounted in the movable frame 2. An end of the first rotating shaft 10 away from the first motor 9 is transmission-connected to the movable shaft 13 via a first gear set.

[0051] The first motor 9 is used to drive the first rotating shaft 10 to rotate. The rotation of the first rotating shaft 10 drives the movable shaft 13 to rotate through the first gear set.

[0052] A round wheel 14 is fixedly mounted on the movable shaft 13 near the middle thereof, and the round wheel 14 contacts the outer surface of the arc-shaped plate 1 ; the rotation of the movable shaft 13 drives the round wheel 14 to rotate.

[0053] The first gear set includes a first bevel gear 11 fixedly mounted on an end of the first rotating shaft 10 away from the first motor 9 , a second bevel gear 12 fixedly mounted on the movable shaft 13 , and the first bevel gear 11 is meshedly connected with the second bevel gear 12 .

[0054] With this design, the first motor 9 is started to drive the first rotating shaft 10 to rotate, the first rotating shaft 10 drives the first bevel gear 11 to rotate, the first bevel gear 11 engages with the second bevel gear 12 to rotate, and the second bevel gear 12 drives the movable shaft 13 to rotate, so that the circular wheel 14 on the movable shaft 13 moves on the outer wall of the arc plate 1, and then can drive the movable frame 2 to move on the arc plate 1, which is convenient to use.

[0055] The mounting assembly 5 includes a fixing plate 15 , two fixing plates 15 are fixedly mounted on the front and rear side walls of the movable frame 2 , a mounting plate 16 is arranged between the two fixing plates 15 , two vertical rods 17 are symmetrically and movably connected on the mounting plate 16 , and both ends of the vertical rods 17 are fixedly connected to the corresponding fixing plates 15 .

[0056] With such a design, the mounting plate 16 is slidably mounted between the two fixing plates 15 via the vertical rods 17, which facilitates assembly and installation, and the movement of the mounting plate 16 can be guided by the cooperation of the vertical rods 17, which facilitates use.

[0057] A threaded rod 18 is threadedly connected to the mounting plate 16 , and both ends of the threaded rod 18 are rotatably connected to the corresponding fixing plate 15 . One end of the threaded rod 18 passes through the corresponding fixing plate 15 and is fixedly connected to an adjusting motor 19 , which is fixedly connected to the fixing plate 15 .

[0058] The cross section of the mounting plate 16 is Z-shaped, and a mounting position is provided on the side of the mounting plate 16 away from the movable frame 2. The mounting position is provided with mounting holes and mounting grooves, and the peripheral weld detection equipment can be conveniently installed through the mounting holes and mounting grooves at the mounting position.

[0059] With this design, the weld detection equipment used to detect the weld can be fixedly installed on the mounting plate 16, which is convenient for assembly and installation. Then, the adjustment motor 19 is started to drive the threaded rod 18 to rotate, and the threaded rod 18 drives the mounting plate 16 to move, so that the weld detection equipment on the mounting plate 16 moves to a specified spacing position from the weld pipe, which facilitates accurate detection operations on the weld.

[0060] In addition, the first motor 9 drives the circular wheel 14 to rotate and drives the movable frame 2 to move on the arc plate 1, thereby driving the weld detection equipment to perform precise position adjustment operations, thereby improving the use effect.

[0061] The driving assembly 7 includes a second motor 20, which is fixedly installed in the inner cavity of the circular shell 6. A second rotating shaft 21 is fixedly connected to the power output end of the second motor 20. Worm gears 24 are rotatably installed on both sides of the second rotating shaft 21 in the inner cavity of the circular shell 6. The second rotating shaft 21 is transmission-connected to the worm gear 24 via a second gear set.

[0062] The second motor 20 is used to drive the second rotating shaft 21 to rotate. The second rotating shaft 21 drives the worm gears 24 on both sides thereof to rotate synchronously through the second gear set, which is convenient to use.

[0063] The second gear set includes a first gear 22 , which is fixedly mounted on the side wall of the second rotating shaft 21 , and two second gears 23 are fixedly mounted on the two worm gears 24 , respectively. The first gear 22 is meshedly connected with the second gear 23 .

[0064] Two side grooves are symmetrically provided on the side wall of the circular shell 6 at positions corresponding to the two worms 24 , and horizontal plates 25 are fixedly connected to the upper and lower sides of the side grooves on the outer side wall of the circular shell 6 , and the same vertical shaft 26 is rotatably connected to the two corresponding horizontal plates 25 .

[0065] A worm wheel 27 is fixedly connected to the side wall of the vertical shaft 26 . The worm wheel 27 passes through the side groove and is meshed with the worm 24 . Driving wheels 28 are fixedly connected to both ends of the vertical shaft 26 .

[0066] With this design, the second motor 20 is started to drive the second rotating shaft 21 to rotate, the second rotating shaft 21 drives the first gear 22 to rotate, the first gear 22 engages with the second gear 23 to rotate, the second gear 23 drives the worm 24 to rotate, the worm 24 engages with the worm wheel 27 to rotate, and the worm wheel 27 drives the driving wheels 28 at both ends of the vertical shaft 26 to rotate. At this time, the rotation of the driving wheel 28 can drive the device to move on the outer wall of the welded pipe.

[0067] The adjustment assembly 8 includes an annular plate 29 rotatably connected to the outer wall of the circular shell 6 , and a plurality of electric push rods 30 are evenly distributed and fixedly installed on the annular plate 29 , and the telescopic ends of the electric push rods 30 are fixedly connected to the inner wall of the arc plate 1 .

[0068] The electric push rod 30 is used to drive the annular plate 29 to move, thereby adjusting the distance between the annular plate 29 and the arc plate 1, which is convenient for use. The circular shell 6 and the annular plate 29 are rotatably connected, and the circular shell 6 can rotate on the annular plate 29 to adjust the circumferential position of the circular shell 6.

[0069] A third motor 31 is fixedly mounted on the side wall of the annular plate 29 , a third rotating shaft 32 is fixedly connected to the power output end of the third motor 31 , and the third rotating shaft 32 penetrates the annular plate 29 and is transmission-connected to the round shell 6 through a third gear set.

[0070] The third gear set includes a third gear 33 , which is fixedly mounted on an end of the third shaft 32 away from the third motor 31 . A ring gear 34 is fixedly connected to the outer wall of the round shell 6 , and the third gear 33 is meshedly connected to the ring gear 34 .

[0071] With such a design, the electric push rod 30 is started to push the annular plate 29 to move, and the annular plate 29 drives the round shell 6 to move toward the side close to the welding pipe, so that the driving wheel 28 is pressed against the outer wall of the welding pipe, and the positioning of the detection device on the welding pipe is completed. The third motor 31 is started, and the third motor 31 drives the third gear 33 to rotate through the third rotating shaft 32. The third gear 33 engages the annular gear 34 to rotate, and the annular gear 34 drives the round shell 6 to rotate, so that the rotation direction of the driving wheel 28 can be adjusted, so that the detection device can move on the outer wall of the welding pipe.

[0072] The control ends of the first motor 9, the adjusting motor 19, the second motor 20, the electric push rod 30 and the third motor 31 are electrically connected to the output ends of the control module 3 respectively, and the control module 3 outputs control signals for independently controlling the corresponding first motor 9, the adjusting motor 19, the second motor 20, the electric push rod 30 and the third motor 31 to work.

[0073] The control module 3 is provided with a data collection unit, a data storage unit, an analysis and processing unit, a wireless communication unit and a built-in power supply.

[0074] The data collection unit is used to collect the weld data of the welded pipe detected by the detection equipment.

[0075] The data storage unit is used to store the data collected by the data collection unit.

[0076] The analysis and processing unit is used to analyze and process the data information inside the data storage unit, and to realize automatic control based on the operation of the detection device.

[0077] The wireless communication unit is used to transmit the data processed by the analysis and processing unit, and transmit the data to an external control host.

[0078] The built-in power supply is used to supply power to the detection device. In the present embodiment, the wiring circuit for the built-in power supply to supply power to the detection device is prior art and will not be described in detail here.

[0079] With this design, during the operation of the weld detection equipment, the detected data is transmitted to the data collection unit inside the control module 3, the data collected by the data collection unit is stored in the data storage unit, and the weld detection data inside the data storage unit is analyzed and processed by the analysis and processing unit, and the processed weld detection data is uploaded to the external host through the wireless transmission unit. The operator can perform online detection operations on the weld quality of the welded pipe by analyzing the received data.

[0080] The present invention also provides a method for using the on-line detection device for weld seam quality of welded pipes. Based on the above-mentioned on-line detection device for weld seam quality of welded pipes, the method comprises the following steps:

[0081] S1: The two arc plates 1 are butt-jointed and installed together, so that the plug block 35 on one side of the arc plate 1 is inserted into the slot on the other side of the arc plate 1, and the fixing bolt 36 is screwed into the plug block 35 to achieve the fixation between the plug block 35 and the slot, thereby completing the butt-joint fixation between the two arc plates 1, selecting the specified weld detection equipment, including one or more of an ultrasonic detector, an eddy current detector, an infrared thermal imaging detector and a high-definition camera, and fixing the weld detection equipment on the mounting plate 16 to complete the installation operation of the weld detection equipment.

[0082] S2: Then start the control module 3, the built-in power supply in the control module 3 is used to power the detection device, and then start the electric push rod 30, the electric push rod 30 works to push the annular plate 29 to move, the annular plate 29 drives the round shell 6 to move to the side close to the weld pipe, so that the driving wheel 28 is pressed against the outer wall of the weld pipe, and the installation operation of the detection device on the weld pipe is completed. At the same time, the control module 3 starts the adjustment motor 19 according to the detection needs of various weld detection equipment, the adjustment motor 19 drives the threaded rod 18 to rotate, and the threaded rod 18 drives the mounting plate 16 to move, so that the weld detection equipment on the mounting plate 16 moves to a specified spacing position from the weld pipe.

[0083] S3: Start the first motor 9 to drive the first rotating shaft 10 to rotate. The first rotating shaft 10 drives the movable shaft 13 to rotate through the cooperation of the first bevel gear 11 and the second bevel gear 12 in the first gear group, so that the circular wheel 14 on the movable shaft 13 moves on the outer wall of the arc plate 1, so as to move the welding detection equipment on the movable frame 2 to the specified position on the welded pipe.

[0084] S4: Start the third motor 31 to drive the third rotating shaft 32 to rotate. The third rotating shaft 32 drives the round shell 6 to rotate through the cooperation of the third gear 33 and the ring gear 34 in the third gear group, so that the driving wheel 28 rotates to a position parallel to the welding pipe, stop the rotation of the third motor 31, and start the second motor 20 to drive the second rotating shaft 21 to rotate. The second rotating shaft 21 drives the worm 24 to rotate through the cooperation of the first gear 22 and the second gear 23 in the second gear group. The worm 24 engages the worm wheel 27 to rotate, and the worm wheel 27 drives the driving wheels 28 at both ends of the vertical shaft 26 to rotate, so that the detection device moves on the outer wall of the welding pipe to complete the detection operation of the weld on the welding pipe.

[0085] S5: When the detection device moves to the butt weld position of the two welded pipes, the movement of the second motor 20 is stopped, and the electric push rod 30 and the third motor 31 are started. The electric push rod 30 drives the round shell 6 to move, so that the driving wheel 28 is separated from the outer wall of the welded pipe, and under the drive of the third motor 31, the driving wheel 28 moves to the position corresponding to the welded pipe, and the electric push rod 30 is started again to press the driving wheel 28 against the outer wall of the welded pipe, thereby completing the automatic positioning operation of the detection device on the weld.

[0086] S6: Start the first motor 9 again to drive the first rotating shaft 10 to rotate. The first rotating shaft 10 drives the movable shaft 13 to rotate through the cooperation of the first bevel gear 11 and the second bevel gear 12 in the first gear set, so that the circular wheel 14 on the movable shaft 13 moves on the outer wall of the arc plate 1, and the butt welds of the two welded pipes are inspected through the weld inspection equipment.

[0087] S7: During the operation of the weld detection equipment, the detected data is transmitted to the data collection unit inside the control module 3, the data collected by the data collection unit is stored in the data storage unit, and the weld detection data inside the data storage unit is analyzed and processed by the analysis and processing unit, and the processed weld detection data is uploaded to the external host through the wireless transmission unit. The operator can perform online detection operations on the weld quality of the welded pipe by analyzing the received data.

[0088] S8: After the weld seam detection of a welded pipe at one position is completed, the above S3-S7 are repeated to enable the detection device to perform automatic online detection operations on the welded pipe, thereby improving the efficiency and convenience of the weld seam detection of the welded pipe.

[0089] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An online detection device for weld quality of a welded pipe, comprising an arc-shaped plate (1), characterized in that: The arc-shaped plates (1) are symmetrically provided with two of them and are fixedly connected to each other. A movable frame (2) is movably connected to the arc-shaped plate (1). A control module (3) is fixedly installed on the outer wall of the movable frame (2). A motion component (4) is arranged in the movable frame (2). Installation components (5) are arranged on the front and rear side walls of the movable frame (2). A circular shell (6) is arranged at the center of the inner wall of the two arc-shaped plates (1). A driving component (7) is arranged on one side of the circular shell (6) close to the center of the arc-shaped plate (1). An adjustment component (8) is arranged on the other side of the circular shell (6). The other end of the adjustment component (8) is connected to the corresponding arc-shaped plate (1). The driving assembly (7) comprises a second motor (20), the second motor (20) being fixedly mounted in the inner cavity of the circular shell (6), a second rotating shaft (21) being fixedly connected to the power output end of the second motor (20), worms (24) being rotatably mounted on both sides of the second rotating shaft (21) in the inner cavity of the circular shell (6), and the second rotating shaft (21) being transmission-connected to the worm (24) via a second gear set; The side wall of the circular shell (6) is symmetrically provided with two side grooves, and the outer side wall of the circular shell (6) is fixedly connected to a horizontal plate (25) at the upper and lower sides of the side groove, and the two corresponding horizontal plates (25) are rotatably connected to the same vertical shaft (26), and the side wall of the vertical shaft (26) is fixedly connected to a worm wheel (27), which passes through the side groove and is meshed with the worm (24), and the two ends of the vertical shaft (26) are fixedly connected to driving wheels (28); The adjustment assembly (8) comprises an annular plate (29), the annular plate (29) being rotatably connected to the outer wall of the circular shell (6), a plurality of electric push rods (30) being evenly distributed and fixedly mounted on the annular plate (29), the telescopic ends of the electric push rods (30) being fixedly connected to the inner wall of the arc-shaped plate (1), a third motor (31) being fixedly mounted on the side wall of the annular plate (29), a third rotating shaft (32) being fixedly connected to the power output end of the third motor (31), the third rotating shaft (32) penetrating the annular plate (29) and being transmission-connected to the circular shell (6) via a third gear set.

2. The device for online detection of weld quality of welded pipe according to claim 1, characterized in that: The motion assembly (4) comprises a first motor (9), the first motor (9) being fixedly mounted on the movable frame (2), a power output end of the first motor (9) passing through the movable frame (2) and being fixedly connected to a first rotating shaft (10), a movable shaft (13) being rotatably mounted in the movable frame (2), an end of the first rotating shaft (10) away from the first motor (9) being transmission-connected to the movable shaft (13) via a first gear set, a round wheel (14) being fixedly mounted on the movable shaft (13) near its middle position, and the round wheel (14) being in contact with the outer surface of the arc-shaped plate (1).

3. The device for online detection of weld quality of welded pipe according to claim 2, characterized in that: The mounting assembly (5) comprises a fixing plate (15), two fixing plates (15) are fixedly mounted on the front and rear side walls of the movable frame (2), a mounting plate (16) is arranged between the two fixing plates (15), two vertical rods (17) are symmetrically and movably connected to the mounting plate (16), two ends of the vertical rods (17) are respectively fixedly connected to the corresponding fixing plates (15), a threaded rod (18) is threadedly connected to the mounting plate (16), both ends of the threaded rod (18) are rotatably connected to the corresponding fixing plate (15), one end of the threaded rod (18) passes through the corresponding fixing plate (15) and is fixedly connected to an adjusting motor (19), and the adjusting motor (19) is fixedly connected to the fixing plate (15).

4. The device for online detection of weld quality of welded pipe according to claim 3, characterized in that: A slot is provided at both ends of any one of the arc-shaped plates (1), and an insert block (35) is fixedly connected to both ends of the other arc-shaped plate (1), and the insert block (35) is inserted into the slot and fixedly connected by fixing bolts (36); The outer side walls of the two arc-shaped plates (1) are each provided with an arc-shaped groove (37), and the inner side wall of the movable frame (2) is fixedly connected with a slide plate (38), the slide plate (38) is inserted into the arc-shaped groove (37), and the slide plate (38) and the arc-shaped groove (37) are slidably connected.

5. The device for online detection of weld quality of welded pipe according to claim 4, characterized in that: The cross section of the mounting plate (16) is arranged in a Z-shape, and a mounting position is arranged on a side of the mounting plate (16) away from the movable frame (2), and the mounting position is used to install an external weld detection device.

6. The device for online detection of weld quality of welded pipe according to claim 5, characterized in that: The control module (3) is provided with a data collection unit, a data storage unit, an analysis and processing unit, a wireless communication unit and a built-in power supply; The data collection unit is used to collect the weld data of the welded pipe detected by the weld detection equipment; The data storage unit is used to store the data collected by the data collection unit; The analysis and processing unit is used to analyze and process the data information inside the data storage unit, and to realize automatic control based on the operation of the detection device; The wireless communication unit is used to transmit the data processed by the analysis and processing unit to an external control host; The built-in power supply is used to supply power to the detection device.

7. A method for using an online detection device for weld seam quality of a welded pipe, based on the online detection device for weld seam quality of a welded pipe according to claim 6, characterized in that: The method of use includes the following steps: S1: The two arc plates (1) are butt-jointed and installed together, so that the plug block (35) on one side of the arc plate (1) is inserted into the slot on the other side of the arc plate (1), and the plug block (35) and the slot are fixed by fixing bolts (36), and a designated weld detection device is selected, including one or more of an ultrasonic detector, an eddy current detector, an infrared thermal imaging detector and a high-definition camera, and the weld detection device is fixedly installed on the installation plate (16), thereby completing the installation operation of the weld detection device; S2: Then the control module (3) and the electric push rod (30) are started, the electric push rod (30) works to push the annular plate (29) to move, the annular plate (29) drives the round shell (6) to move toward the side close to the weld pipe, so that the driving wheel (28) is pressed against the outer wall of the weld pipe, and the installation operation of the detection device on the weld pipe is completed. At the same time, the control module (3) starts the adjustment motor (19) according to the detection needs of various weld detection equipment, the adjustment motor (19) works to drive the threaded rod (18) to rotate, and the threaded rod (18) drives the mounting plate (16) to move, so that the weld detection equipment on the mounting plate (16) moves to a position at a specified spacing from the weld pipe; S3: starting the first motor (9) to drive the first rotating shaft (10) to rotate, and the first rotating shaft (10) drives the movable shaft (13) to rotate through the first gear set, so that the round wheel (14) on the movable shaft (13) moves on the outer wall of the arc plate (1), so as to move the welding detection equipment on the movable frame (2) to a specified position on the welded pipe; S4: starting the third motor (31) to drive the third rotating shaft (32) to rotate, the third rotating shaft (32) drives the round shell (6) to rotate through the third gear set, so that the driving wheel (28) rotates to a position parallel to the welded pipe, stopping the rotation of the third motor (31), and starting the second motor (20) to drive the second rotating shaft (21) to rotate, the second rotating shaft (21) drives the worm (24) to rotate through the second gear set, the worm (24) meshes with the worm wheel (27) to rotate, the worm wheel (27) drives the driving wheels (28) at both ends of the vertical shaft (26) to rotate, so that the detection device moves on the outer wall of the welded pipe, so as to complete the detection operation of the weld on the welded pipe; S5: When the detection device moves to the position of the butt weld of the two welded pipes, the movement of the second motor (20) is stopped, and the electric push rod (30) and the third motor (31) are started. The electric push rod (30) drives the circular shell (6) to move, so that the driving wheel (28) is separated from the outer wall of the welded pipe, and under the drive of the third motor (31), the driving wheel (28) moves to a position corresponding to the welded pipe, and the electric push rod (30) is started again, so that the driving wheel (28) is pressed against the outer wall of the welded pipe, thereby completing the automatic positioning operation of the detection device for the weld; S6: starting the first motor (9) again to drive the first rotating shaft (10) to rotate, and the first rotating shaft (10) drives the movable shaft (13) to rotate through the first gear set, so that the round wheel (14) on the movable shaft (13) moves on the outer wall of the arc plate (1), and the butt welds of the two welded pipes are inspected by the weld inspection device; S7: During the operation of the weld inspection device, the detected data is transmitted to the data collection unit inside the control module (3), the data collected by the data collection unit is stored in the data storage unit, and the weld inspection data inside the data storage unit is analyzed and processed by the analysis and processing unit, and the processed weld inspection data is uploaded to the external host through the wireless transmission unit. The operator can realize the online inspection operation of the weld quality of the welded pipe by analyzing the received data; S8: After the weld inspection of a welded pipe at one position is completed, the above S3-S7 are repeated to enable the inspection device to perform automatic online inspection operations on the welded pipe.

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