Metal structural member welding ultrasonic flaw detection device and method

Abstract

The invention relates to the technical field of metal ultrasonic flaw detection, and discloses a metal structural part welding ultrasonic flaw detection device and method.The metal structural part welding ultrasonic flaw detection device comprises a flaw detector body and a flaw detector and further comprises a transmission assembly arranged outside a flaw detection head, a supporting assembly connected with the transmission assembly and an adjusting assembly, the adjusting assembly is connected with the transmission assembly. A driving motor is controlled to rotate reversely, so that a first gear drives a cross to move a limiting block to the top of an opening of a shell, a supporting spring downwards extrudes a bottom block through elastic force, a bottom plate extrudes a metal structural part to enable an adhesive suction cup to be separated from the metal structural part, and then the driving motor is controlled to operate; the rack rotates under the meshing of the first gear and the second gear, so that the travel path angle of the flaw detection head can be conveniently adjusted, the flaw detection angle of the flaw detection head can be randomly adjusted, the flaw detection work can be conveniently performed on the irregular welding part of the metal structural part, and the accuracy of flaw detection data is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal ultrasonic flaw detection, and in particular to a metal structural part welding ultrasonic flaw detection device and method. Background Art

[0002] Metal structural parts refer to various metal components used in manufacturing and construction, usually used to support, connect or support the overall structure. These structural parts can include various types of metal materials, such as steel, aluminum alloy, stainless steel, etc. Their design and manufacturing are usually based on specific engineering requirements and standards. In the industrial field, metal structural parts can be used to manufacture mechanical equipment, vehicle parts, pipe supports, etc.; in the construction field, they are often used in building frames, roof structures, stair handrails, etc.

[0003] In the manufacturing and construction process of metal structural parts, welding is a common connection method, which ensures the strength and durability of the structure. However, various defects may occur during the welding process, such as pores, cracks, inclusions, etc. These defects have an important impact on the quality and performance of the structural parts. Therefore, after the welding of metal structural parts is completed, ultrasonic flaw detection equipment is required for flaw detection.

[0004] In real life, workers need to hold the detection head of the handheld ultrasonic flaw detection device against the metal structure and perform flaw detection by manual movement. However, during the flaw detection process, the workers may experience hand tremors, the detection head may move offset, and the detection head may stay at the metal structure for a certain length of time, which may affect the flaw detection results and cause inaccurate data. The detection head can only move in a straight line by controlling the guide rail, and cannot perform 360-degree flaw detection on irregular welds. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a metal structural part welding ultrasonic flaw detection device and method.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A metal structural part welding ultrasonic flaw detection device and method, comprising a flaw detector body and a flaw detection head, characterized in that it also includes:

[0008] A transmission assembly, the transmission assembly is arranged outside the flaw detection head and is used to drive the flaw detection head to perform transmission work;

[0009] A support assembly, the support assembly is connected to the transmission assembly and is fixed on the measured metal structure to support the transmission assembly to perform transmission work;

[0010] An adjusting component, the adjusting component is connected to the transmission component and is used to adjust the transmission direction of the transmission component;

[0011] The adjusting component includes: a limiting circular block, a limiting circular block is installed on one side of the driving motor, one end of the return spring is connected to the bottom of the limiting circular block, the other end of the return spring is connected to the limiting sleeve, a movable block is installed on the inner side of the limiting sleeve, a rotating block is installed on the bottom of the movable block, a circular shell is sleeved on the outer side of the rotating block, a second gear is installed on the bottom of the circular shell, a short rod is installed on the bottom of the second gear, a bottom block is installed on the bottom of the short rod, a bottom plate is installed on the bottom of the bottom block, one end of the supporting spring is connected to the top of the bottom block, an outer shell is sleeved on the outer side of the bottom block, and the outer shell is connected to the other end of the supporting spring.

[0012] As a further solution of the present invention, a handle is installed on each side of the flaw detector body, a support frame is installed on the back of the flaw detector, one end of the plug of the connecting wire is plugged into the interface of the flaw detector, and the other end of the connecting wire is connected to the flaw detector head.

[0013] As a further solution of the present invention, the transmission assembly includes: a fixed sleeve, a fixed sleeve is installed on the outside of the flaw detection head, a support ring is installed on the outside of the fixed sleeve, the outer sleeves of the fixed sleeve and the support ring are provided with a gear ring, a rack is meshed on one side of the gear ring, a driving motor is installed on one side of the flaw detection head, a first gear is installed at the bottom of the output end of the driving motor, and the first gear is combined with the gear ring.

[0014] As a further solution of the present invention, the supporting assembly includes: two side frames, one side frame is installed on each side of the rack, a sliding bar is installed between the two side frames, one side of the flaw detection head is connected to one end of the bracket, and a sliding block is installed on the other end of the bracket, and the sliding block is located on the inner side of the sliding bar.

[0015] As a further solution of the present invention, the support assembly further includes: two threaded blocks, the bottom of the side frame is fixedly mounted with the threaded blocks via connected bolts, and the bottom of the threaded blocks is mounted with a sticky suction cup.

[0016] As a further solution of the present invention, the adjustment assembly also includes: a sliding rod, a sliding rod is installed on one side of the limit sleeve, and the sliding rod is located on the inner side of the slide groove of the limit circle block, a cross is installed at the bottom of the first gear, one end of the torsion spring is connected to the side of the short rod, a swivel is installed on the other end of the torsion spring, and the swivel is located on the outside of the short rod, a limit block is installed on one side of the swivel, and the swivel and the limit block are located on the top of the outer shell.

[0017] As a further solution of the present invention, the adjustment component also includes: a micro electric telescopic rod, a micro electric telescopic rod is connected to one side of the round shell, a movable ring is installed at the bottom of the telescopic end of the micro electric telescopic rod, and the movable ring is sleeved on the outside of the shell, and two extrusion frames are installed on the top of the base plate.

[0018] As a further solution of the present invention, a positioning rod is installed on one side of the rack and the slide bar, one end of a torsion spring is installed on both sides of the positioning rod, a rotating plate is sleeved on the outer side of the positioning rod, and both sides of the rotating plate are respectively connected to the other ends of the two torsion springs.

[0019] As a further solution of the present invention, a fan-shaped plate is installed on one side of the bracket, an axle rod is installed on the front side of the fan-shaped plate, a pointer is sleeved on the outer side of the axle rod, a gravity block is installed at the bottom of the pointer, and a marking plate is installed on one side of the slide bar.

[0020] A method for using a metal structural part welding ultrasonic flaw detection device comprises the following steps:

[0021] S1: Move the flaw detector body and the flaw detection head to the vicinity of the metal structure to be measured, stick the two sticky suction cups to the external support, so that the flaw detection head can fit the initial welding position of the metal structure to be measured, turn on the flaw detector through the flaw detector body, and start the drive motor to make the first gear drive the gear ring to rotate, and drive the flaw detection head to move under the meshing action of the gear ring and the rack, so that the flaw detection head can detect the welding position of the metal structure;

[0022] S2: During the flaw detection process, when the welding position of the metal structural part needs to adjust the angle, the flaw detection head stops flaw detection, controls the driving motor to reverse, and makes the first gear drive the cross to move the limit block to the top of the opening of the shell, so that the supporting spring uses the elastic force to squeeze the bottom block downward, so that the bottom block drives the bottom plate to move downward, so that the bottom plate separates the sticky suction cup from the metal structural part by squeezing the metal structural part, and then controls the driving motor to operate, and the rack rotates under the meshing of the first gear and the second gear to adjust the travel angle of the flaw detection head, controls the telescopic end of the micro-electric telescopic rod to retract to the fixed end, so that the movable ring drives the limit block to move out of the inner side of the opening of the shell, and the limit block is reset under the action of the torsion spring. At the same time, the bottom plate is reset, and the rack and the slide bar are pressed downward by the extrusion frame and the rotating plate, so that the sticky suction cup is adhered to the metal structural part, so that the flaw detection head can continue to move forward for flaw detection;

[0023] S3: During the movement of the flaw detection head, when there is a slight protrusion between the flaw detection head and the measured metal structure, the movement of the flaw detection head will encounter obstacles and cause shaking, causing the flaw detection head to drive the pointer to swing through the bracket, fan-shaped plate and shaft rod. The staff records the position of the pointer at the mark on the marking plate at this time, which is convenient for the staff to process the surface of the metal structure here and facilitate subsequent flaw detection work at this place.

[0024] The beneficial effects of the present invention are:

[0025] 1. By controlling the reverse rotation of the driving motor, the first gear drives the cross to move the limit block to the top of the opening of the shell, so that the support spring uses elastic force to squeeze the bottom block downward, so that the bottom block drives the bottom plate to move downward, so that the bottom plate squeezes the metal structure to separate the sticky suction cup from the metal structure, and then controls the driving motor to operate, and the rack rotates under the meshing of the first gear and the second gear, so as to adjust the travel angle of the flaw detection head, and control the telescopic end of the micro-electric telescopic rod to retract the fixed end, so that the movable ring drives the limit block to move out of the inner side of the opening of the shell, and the limit block is reset under the action of the torsion spring. At the same time, the bottom plate is reset, and the rack and the slide bar are pressed downward by the extrusion frame and the rotating plate, so that the sticky suction cup is adhered to the metal structure, so that the flaw detection head can continue to move forward for flaw detection, so that the flaw detection angle of the flaw detection head can be adjusted at will, which is convenient for flaw detection of irregular welding parts of metal structures and improves the accuracy of flaw detection data;

[0026] 2. During the movement of the flaw detection head, when there is a slight protrusion between the flaw detection head and the measured metal structure, the movement of the flaw detection head will encounter obstacles and cause shaking, causing the flaw detection head to drive the pointer to swing through the bracket, fan-shaped plate and shaft rod. The staff records the position of the pointer at the mark on the marking plate at this time, which is convenient for the staff to process the surface of the metal structure here and facilitate subsequent flaw detection work here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a first overall structural schematic diagram of a metal structural component welding ultrasonic flaw detection device proposed by the present invention;

[0028] Figure 2 A second overall structural schematic diagram of a metal structural component welding ultrasonic flaw detection device proposed by the present invention;

[0029] Figure 3 A schematic diagram of the rack structure of a metal structural part welding ultrasonic flaw detection device proposed by the present invention;

[0030] Figure 4 A schematic diagram of a slide bar structure of a metal structural component welding ultrasonic flaw detection device proposed by the present invention;

[0031] Figure 5 This is a schematic diagram of the bottom plate structure of a metal structural part welding ultrasonic flaw detection device proposed by the present invention;

[0032] Figure 6 A schematic diagram of a rotating plate structure of a metal structural part welding ultrasonic flaw detection device proposed by the present invention;

[0033] Figure 7 A schematic diagram of the structure of a driving motor of a metal structural part welding ultrasonic flaw detection device proposed by the present invention;

[0034] Figure 8 A schematic diagram of the gear ring explosion structure of a metal structural part welding ultrasonic flaw detection device proposed by the present invention;

[0035] Fig. 9 A schematic diagram of the explosion structure of the shell of a metal structural part welding ultrasonic flaw detection device proposed by the present invention;

[0036] Fig.10 A schematic diagram of the explosion structure of a movable block of a metal structural welding ultrasonic flaw detection device proposed by the present invention;

[0037] Fig.11 This is a schematic diagram of the first gear structure of a metal structural component welding ultrasonic flaw detection device proposed by the present invention;

[0038] Fig.12 This is a schematic diagram of the swivel structure of a metal structural component welding ultrasonic flaw detection device proposed by the present invention.

[0039] In the figure: 1. flaw detector body; 2. handle; 3. support frame; 4. connecting line; 5. flaw detector head; 6. fixing sleeve; 7. support ring; 8. gear ring; 9. rack; 10. side frame; 11. slide bar; 12. thread block; 13. sticky suction cup; 14. drive motor; 15. first gear; 16. bracket; 17. slider; 18. limit round block; 19. reset spring; 20. limit sleeve; 21. slide rod; 22. movable block; 23. rotating block ; 24. round shell; 25. second gear; 26. short rod; 27. bottom block; 28. bottom plate; 29. ​​supporting spring; 30. outer shell; 31. cross; 32. torsion spring; 33. swivel; 34. limit block; 35. micro electric telescopic rod; 36. movable ring; 37. extrusion frame; 38. positioning rod; 39. torsion spring; 40. swivel plate; 41. fan-shaped plate; 42. shaft rod; 43. pointer; 44. gravity block; 45. marking plate. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] Please see attached Figure 1 -Attached Fig.12 , a metal structural part welding ultrasonic flaw detection device, comprising a flaw detector body 1 and a flaw detection head 5, a handle 2 is installed on each side of the flaw detector body 1, a support frame 3 is installed on the back of the flaw detector, one end of a plug of a connecting line 4 is plugged into the interface of the flaw detector, and the other end of the connecting line 4 is connected to the flaw detection head 5;

[0043] During the actual application of this embodiment, the support frame 3 can support the flaw detector body 1 with the support of an external support object. The staff opens the flaw detector body 1, and fits the flaw detection head 5 to the welding position of the metal structure to be measured. By moving the flaw detection head 5, the ultrasonic flaw detection data of the flaw detection head 5 can be transmitted to the flaw detector body 1. The staff can understand the flaw detection data of the metal structure to be measured through the flaw detector body 1.

[0044] Please see attached Figure 1 -Attached Fig.12 In a preferred embodiment, a transmission assembly is provided outside the flaw detection head 5 and is used to drive the flaw detection head 5 to perform transmission work;

[0045] A support assembly, the support assembly is connected to the transmission assembly and is fixed on the measured metal structure to support the transmission assembly to perform transmission work;

[0046] An adjusting component, the adjusting component is connected to the transmission component and is used to adjust the transmission direction of the transmission component;

[0047] The transmission assembly includes: a fixed sleeve 6, a fixed sleeve 6 is installed on the outer side of the flaw detection head 5, a support ring 7 is installed on the outer side of the fixed sleeve 6, a gear ring 8 is provided on the outer side of the fixed sleeve 6 and the support ring 7, a rack 9 is meshedly provided on one side of the gear ring 8, a drive motor 14 is installed on one side of the flaw detection head 5, a first gear 15 is installed on the bottom of the output end of the drive motor 14, and the first gear 15 is combined with the gear ring 8;

[0048] The support assembly includes: two side frames 10, one side frame 10 is installed on each side of the rack 9, a slide bar 11 is installed between the two side frames 10, one side of the flaw detection head 5 is connected to one end of a bracket 16, the other end of the bracket 16 is installed with a slider 17, and the slider 17 is located on the inner side of the slide bar 11, and a threaded block 12 is fixedly installed at the bottom of the side frame 10 by a connected bolt, and a sticky suction cup 13 is installed at the bottom of the threaded block 12;

[0049] The adjustment component includes: a limit round block 18, a limit round block 18 is installed on one side of the drive motor 14, one end of a return spring 19 is connected to the bottom of the limit round block 18, the other end of the return spring 19 is connected to a limit sleeve 20, a movable block 22 is installed on the inner side of the limit sleeve 20, a rotating block 23 is installed on the bottom of the movable block 22, a round shell 24 is sleeved on the outer side of the rotating block 23, a second gear 25 is installed on the bottom of the round shell 24, a short rod 26 is installed on the bottom of the second gear 25, a bottom block 27 is installed on the bottom of the short rod 26, a bottom plate 28 is installed on the bottom of the bottom block 27, one end of a supporting spring 29 is connected to the top of the bottom block 27, a shell 30 is sleeved on the outer side of the bottom block 27, and the shell 30 and the supporting spring 29 The other end is connected, a sliding rod 21 is installed on one side of the limit sleeve 20, and the sliding rod 21 is located on the inner side of the slide groove of the limit round block 18, a cross 31 is installed at the bottom of the first gear 15, and one end of the torsion spring 32 is connected to the side of the short rod 26, and a swivel 33 is installed on the other end of the torsion spring 32, and the swivel 33 is located on the outside of the short rod 26, a limiting block 34 is installed on one side of the swivel 33, and the swivel 33 and the limiting block 34 are located at the top of the shell 30, a micro electric telescopic rod 35, a micro electric telescopic rod 35 is connected to one side of the round shell 24, a movable ring 36 is installed at the bottom of the telescopic end of the micro electric telescopic rod 35, and the movable ring 36 is sleeved on the outside of the shell 30, and two extrusion frames 37 are installed on the top of the bottom plate 28.

[0050] In actual application of this embodiment, the fixing sleeve 6 can provide support for the support ring 7 under the fixed support of the flaw detection head 5, so that the support ring 7 can provide support for the rotation of the gear ring 8 under the action of external force, and the sticky suction cup 13 can be fixed on the metal structure to be measured by using viscosity, and the side frame 10 can be supported by the threaded block 12, so that the side frame 10 can support the rack 9 and the slide bar 11, the rack 9 can provide a guide for the movement of the gear ring 8, and the slide bar 11 can provide a guide for the movement of the slider 17. The slider 17 can support the flaw detection head 5 for stable movement through the bracket 16, and the limit round block 18 is fixedly supported by the driving motor 14. It can provide support for the return spring 19 and guide the movement of the sliding rod 21. The return spring 19 can provide support for the limit sleeve 20 by its own elastic force. The limit sleeve 20 can support the movable block 22 to move stably under the action of external force. The rotating block 23 can provide rotation support for the movable block 22. The round shell 24 can provide a movable space for the rotating block 23. The outer shell 30 can provide support for the components associated with it. The supporting spring 29 can provide support for the bottom block 27 by its own elastic force, so that the bottom plate 28 supports the bottom plate 28. The torsion spring 32 can support the limit block 34 through the swivel 33 by its own elastic force.

[0051] During the flaw detection process, when the angle of the welding position of the measured metal structural part needs to be adjusted, the flaw detection head 5 stops flaw detection, controls the driving motor 14 to reverse, and the output end of the driving motor 14 drives the first gear 15 to reverse, so that the first gear 15 drives the cross 31 to rotate, so that the cross 31 squeezes the limit block 34 under the action of external force, so that the limit block 34 drives the rotating ring 33 to rotate the moving angle under the action of external force, thereby moving the limit block 34 to the top of the opening of the shell 30, so that the support spring 29 uses the elastic force to squeeze the bottom block 27 downward, so that the bottom block 27 drives the bottom plate 28 to move downward, so that the bottom plate 28 separates the sticky suction cup 13 from the metal structural part by squeezing the metal structural part, and at the same time, the bottom block 27 drives the second gear 25 to move downward through the short rod 26, so that the second gear 25 can mesh with the first gear 15, and the second gear 25 drives the round shell 24, the rotating block 23, the movable block 22, the micro electric telescopic rod 35 and the movable ring 36 to move downward together under the action of external force, and the movable block 22 moves along the limit The inner side of the positioning sleeve 20 is moved, and the short rod 26 brings the rotating ring 33 and the limit block 34 into the inner side of the opening of the shell 30 through the torsion spring 32. The staff then controls the driving motor 14 to operate, and the rack 9 rotates under the meshing of the first gear 15 and the second gear 25, so that the first gear 15 and its associated components rotate around the second gear 25, and can be adjusted in the same direction by up to 90 degrees, so as to adjust the travel angle of the flaw detection head 5, and control the telescopic end of the micro-electric telescopic rod 35 to retract the fixed end. When the second gear 25 is no longer meshed with the first gear 15, the bottom plate 28 falls off the surface of the metal structure, so that the reset spring 19 uses its own elastic force to drive the driving motor 14 and the components associated with the driving motor 14 to reset through the limit round block 18, so that the movable ring 36 drives the limit block 34 to move out of the inner side of the opening of the shell 30, and the limit block 34 is reset under the action of the torsion spring 32, so that the flaw detection head 5 can be conveniently adjusted according to the welding angle of the metal structure, and the accuracy of the measured flaw detection data is improved.

[0052] Please see attached Figure 1 -Attached Fig.12 In a preferred embodiment, a positioning rod 38 is installed on one side of the rack 9 and the slide bar 11, and one end of a torsion spring 39 is installed on both sides of the positioning rod 38. A rotating plate 40 is sleeved on the outer side of the positioning rod 38, and both sides of the rotating plate 40 are respectively connected to the other ends of the two torsion springs 39;

[0053] In the actual application of this embodiment, the positioning rod 38 can provide support for the torsion spring 39 and the rotating plate 40 under the fixed support of the rack 9 and the slide bar 11, and the torsion spring 39 can provide support for the rotating plate 40 by using its own elastic force, and can reset the rotating plate 40;

[0054] When the bottom plate 28 moves upward, the bottom plate 28 drives the extrusion frame 37 to move upward under the action of external force, so that the extrusion frame 37 squeezes the rotating plate 40 upward, and the rotating plate 40 squeezes the positioning rod 38 downward under the action of external force, so that the two positioning rods 38 can squeeze the rack 9 and the slide bar 11 downward respectively, so that the rack 9 and the slide bar 11 can make the sticky suction cup 13 stick to the metal structure through the side frame 10 and the threaded block 12, so that the flaw detection head 5 can continue to move forward to perform flaw detection work.

[0055] Please see attached Figure 1 -Attached Fig.12 In a preferred embodiment, a fan-shaped plate 41 is installed on one side of the bracket 16, a shaft 42 is installed on the front of the fan-shaped plate 41, a pointer 43 is sleeved on the outer side of the shaft 42, a gravity block 44 is installed at the bottom of the pointer 43, and a marking plate 45 is installed on one side of the slide bar 11;

[0056] In the actual application of this embodiment, the fan-shaped plate 41 can fix and support the shaft 42 under the support of the bracket 16, so that the shaft 42 can support the pointer 43 to rotate under the action of external force, and the gravity block 44 can drive the pointer 43 to rotate under the action of external force by its own gravity;

[0057] During the movement of the flaw detection head 5, when there is a slight protrusion between the flaw detection head 5 and the metal structure being measured, the movement of the flaw detection head 5 will encounter obstacles and cause shaking, causing the flaw detection head 5 to drive the pointer 43 to swing through the bracket 16, the fan-shaped plate 41 and the shaft 42. The staff records the position of the pointer 43 at the mark on the marking plate 45 at this time, which is convenient for the staff to process the surface of the metal structure here and facilitate subsequent flaw detection work here.

[0058] A method for using a metal structural part welding ultrasonic flaw detection device comprises the following steps:

[0059] S1: Move the flaw detector body 1 and the flaw detection head 5 to the vicinity of the metal structure to be measured, stick the two sticky suction cups 13 to the external support, so that the flaw detection head 5 can fit the initial welding position of the metal structure to be measured, turn on the flaw detector through the flaw detector body 1, and start the drive motor 14 to make the first gear 15 drive the gear ring 8 to rotate, and drive the flaw detection head 5 to move under the meshing action of the gear ring 8 and the rack 9, so that the flaw detection head 5 performs flaw detection on the welding position of the metal structure;

[0060] S2: During the flaw detection process, when the angle of the welding part of the metal structure needs to be adjusted, the flaw detection head 5 stops flaw detection, controls the driving motor 14 to reverse, and makes the first gear 15 drive the cross 31 to move the limit block 34 to the top of the opening of the shell 30, so that the support spring 29 uses the elastic force to press the bottom block 27 downward, so that the bottom block 27 drives the bottom plate 28 to move downward, so that the bottom plate 28 separates the sticky suction cup 13 from the metal structure by squeezing the metal structure, and then controls the driving motor 14 to operate, and the first gear 15 and the second gear 16 are connected. The meshing lower rack 9 of the gear 25 rotates to adjust the travel angle of the flaw detection head 5, and the telescopic end of the micro-electric telescopic rod 35 is controlled to retract to the fixed end, so that the movable ring 36 drives the limit block 34 to move out of the inner side of the opening of the housing 30. The limit block 34 is reset under the action of the torsion spring 32. At the same time, the bottom plate 28 is reset, and the rack 9 and the slide bar 11 are pressed downward by the extrusion frame 37 and the rotating plate 40, so that the sticky suction cup 13 is adhered to the metal structure, so that the flaw detection head 5 can continue to move forward to perform flaw detection work;

[0061] S3: During the movement of the flaw detection head 5, when there is a tiny protrusion between the flaw detection head 5 and the measured metal structure, the movement of the flaw detection head 5 will encounter obstacles and cause shaking, so that the flaw detection head 5 drives the pointer 43 to swing through the bracket 16, the fan-shaped plate 41 and the shaft 42. The staff records the position of the pointer 43 at the mark of the marking plate 45 at this time, which is convenient for the staff to process the surface of the metal structure here and facilitate subsequent flaw detection work here.

[0062] The working principle of the present invention is as follows: the staff opens the flaw detector body 1, places the flaw detection head 5 on the welding part of the metal structure to be measured, presses the side frame 10 downward, makes the sticky suction cup 13 stick to the metal structure, controls the driving motor 14 to operate through the flaw detector body 1, and at the same time, the flaw detection head 5 performs ultrasonic flaw detection on the metal structure. During the flaw detection process, when the angle of the welding part of the metal structure to be measured needs to be adjusted, the flaw detection head 5 stops flaw detection, controls the driving motor 14 to reverse, and the output end of the driving motor 14 drives the first gear 15 to reverse, so that the first gear 15 drives the cross 31 to rotate , the cross 31 squeezes the limit block 34 under the action of external force, so that the limit block 34 drives the swivel 33 to rotate the moving angle under the action of external force, thereby moving the limit block 34 to the top of the opening of the shell 30, so that the support spring 29 uses elastic force to squeeze the bottom block 27 downward, so that the bottom block 27 drives the bottom plate 28 to move downward, so that the bottom plate 28 separates the sticky suction cup 13 from the metal structure by squeezing the metal structure. At the same time, the bottom block 27 drives the second gear 25 to move downward through the short rod 26, so that the second gear 25 can mesh with the first gear 15. The second gear 25 is Under the action, the round shell 24, the rotating block 23, the movable block 22, the micro electric telescopic rod 35 and the movable ring 36 are driven to move downward together, the movable block 22 moves along the inner side of the limit sleeve 20, and the short rod 26 brings the rotating ring 33 and the limit block 34 into the inner side of the opening of the shell 30 through the torsion spring 32. The staff then controls the drive motor 14 to operate, and the rack 9 rotates under the meshing of the first gear 15 and the second gear 25, so that the first gear 15 and its associated parts rotate around the second gear 25, and can be adjusted in the same direction by up to 90 degrees, so as to facilitate the adjustment of the flaw detection head 5, the telescopic end of the micro electric telescopic rod 35 is controlled to retract to the fixed end. When the second gear 25 is no longer meshed with the first gear 15, the bottom plate 28 falls off the surface of the metal structure, so that the reset spring 19 uses its own elastic force to drive the drive motor 14 and the components associated with the drive motor 14 to reset through the limit round block 18, so that the movable ring 36 drives the limit block 34 to move out of the inner side of the opening of the shell 30, and the limit block 34 is reset under the action of the torsion spring 32, so that the flaw detection head 5 can be conveniently adjusted according to the welding angle of the metal structure, thereby improving the accuracy of the measured flaw detection data;

[0063] During the movement of the flaw detection head 5, when there is a slight protrusion between the flaw detection head 5 and the metal structure being measured, the movement of the flaw detection head 5 will encounter obstacles and cause shaking, causing the flaw detection head 5 to drive the pointer 43 to swing through the bracket 16, the fan-shaped plate 41 and the shaft 42. The staff records the position of the pointer 43 at the mark on the marking plate 45 at this time, which is convenient for the staff to process the surface of the metal structure here and facilitate subsequent flaw detection work here.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A metal structural part welding ultrasonic flaw detection device, comprising a flaw detector body (1) and a flaw detection head (5), characterized in that: Also includes: A transmission assembly, the transmission assembly being arranged outside the flaw detection head (5) and being used to drive the flaw detection head (5) to perform transmission work; A support assembly, the support assembly is connected to the transmission assembly and is fixed on the measured metal structure to support the transmission assembly to perform transmission work; An adjusting component, the adjusting component is connected to the transmission component and is used to adjust the transmission direction of the transmission component; The adjustment component comprises: a limiting round block (18), a limiting round block (18) is installed on one side of the driving motor (14), the bottom of the limiting round block (18) is connected to one end of a return spring (19), the other end of the return spring (19) is connected to a limiting sleeve (20), a movable block (22) is installed on the inner side of the limiting sleeve (20), a rotating block (23) is installed on the bottom of the movable block (22), and the outer side of the rotating block (23) is provided with a round shell (24). A second gear (25) is installed at the bottom of the round shell (24), a short rod (26) is installed at the bottom of the second gear (25), a bottom block (27) is installed at the bottom of the short rod (26), a bottom plate (28) is installed at the bottom of the bottom block (27), one end of a supporting spring (29) is connected to the top of the bottom block (27), an outer shell (30) is sleeved on the outer side of the bottom block (27), and the outer shell (30) is connected to the other end of the supporting spring (29).

2. The ultrasonic flaw detection device for welding of metal structural parts according to claim 1 is characterized in that: A handle (2) is installed on each side of the flaw detector body (1), a support frame (3) is installed on the back of the flaw detector, one end of a plug of a connecting line (4) is plugged into the interface of the flaw detector, and the other end of the connecting line (4) is connected to a flaw detection head (5).

3. The ultrasonic flaw detection device for welding of metal structural parts according to claim 2, characterized in that: The transmission assembly comprises: a fixed sleeve (6), the fixed sleeve (6) is installed on the outer side of the flaw detection head (5), the support ring (7) is installed on the outer side of the fixed sleeve (6), the outer sides of the fixed sleeve (6) and the support ring (7) are provided with a gear ring (8), one side of the gear ring (8) is meshed with a rack (9), a driving motor (14) is installed on one side of the flaw detection head (5), a first gear (15) is installed at the bottom of the output end of the driving motor (14), and the first gear (15) is combined with the gear ring (8).

4. The ultrasonic flaw detection device for welding of metal structural parts according to claim 3 is characterized in that: The support assembly comprises: two side frames (10), one side frame (10) is installed on each side of the rack (9), a slide bar (11) is installed between the two side frames (10), one side of the flaw detection head (5) is connected to one end of a bracket (16), the other end of the bracket (16) is installed with a slide bar (17), and the slide bar (17) is located on the inner side of the slide bar (11).

5. The ultrasonic flaw detection device for welding of metal structural parts according to claim 4, characterized in that: The support assembly further comprises: two threaded blocks (12), the bottom of the side frame (10) being fixedly mounted with the threaded blocks (12) via connected bolts, and the bottom of the threaded blocks (12) being mounted with sticky suction cups (13).

6. The ultrasonic flaw detection device for welding of metal structural parts according to claim 3, characterized in that: The adjustment assembly further comprises: a sliding rod (21), a sliding rod (21) is installed on one side of the limiting sleeve (20), and the sliding rod (21) is located on the inner side of the sliding groove of the limiting round block (18), a cross (31) is installed on the bottom of the first gear (15), a side of the short rod (26) is connected to one end of a torsion spring (32), a rotating ring (33) is installed on the other end of the torsion spring (32), and the rotating ring (33) is located on the outer side of the short rod (26), a limiting block (34) is installed on one side of the rotating ring (33), and the rotating ring (33) and the limiting block (34) are located on the top of the housing (30).

7. The ultrasonic flaw detection device for welding of metal structural parts according to claim 6, characterized in that: The adjustment assembly further comprises: a micro electric telescopic rod (35), one side of the round shell (24) is connected to the micro electric telescopic rod (35), a movable ring (36) is installed at the bottom of the telescopic end of the micro electric telescopic rod (35), and the movable ring (36) is sleeved on the outside of the shell (30), and two extrusion frames (37) are installed on the top of the bottom plate (28).

8. The ultrasonic flaw detection device for welding of metal structural parts according to claim 4, characterized in that: A positioning rod (38) is installed on one side of each of the rack (9) and the slide bar (11), and one end of a torsion spring (39) is installed on both sides of each of the positioning rods (38). A rotating plate (40) is sleeved on the outer side of the positioning rod (38), and both sides of the rotating plate (40) are respectively connected to the other ends of the two torsion springs (39).

9. The ultrasonic flaw detection device for welding of metal structural parts according to claim 4, characterized in that: A fan-shaped plate (41) is installed on one side of the bracket (16), a shaft (42) is installed on the front side of the fan-shaped plate (41), a pointer (43) is sleeved on the outer side of the shaft (42), a gravity block (44) is installed at the bottom of the pointer (43), and a marking plate (45) is installed on one side of the slide bar (11).

10. A method for using an ultrasonic flaw detection device for welding metal structural parts, characterized in that: The ultrasonic flaw detection device for welding of metal structural parts according to any one of claims 1 to 9 comprises the following steps: S1: Move the flaw detector body (1) and the flaw detection head (5) to the vicinity of the metal structure to be measured, adhere the two sticky suction cups (13) to an external support, so that the flaw detection head (5) can fit the initial welding position of the metal structure to be measured, turn on the flaw detector through the flaw detector body (1), and start the drive motor (14) to operate, so that the first gear (15) can drive the gear ring (8) to rotate, and drive the flaw detection head (5) to move under the meshing action of the gear ring (8) and the rack (9), so that the flaw detection head (5) performs flaw detection work on the welding position of the metal structure; S2: During the flaw detection process, when the angle of the welding part of the metal structure needs to be adjusted, the flaw detection head (5) stops flaw detection, controls the driving motor (14) to reverse, and causes the first gear (15) to drive the cross (31) to move the limit block (34) to the top of the opening of the shell (30), so that the supporting spring (29) uses the elastic force to press the bottom block (27) downward, so that the bottom block (27) drives the bottom plate (28) to move downward, so that the bottom plate (28) separates the sticky suction cup (13) from the metal structure by squeezing the metal structure, and then controls the driving motor (14) to operate, and the first gear (15) and the second gear (14) are connected. The meshing lower rack (9) of the housing (25) is rotated to adjust the travel angle of the flaw detection head (5), and the telescopic end of the micro-electric telescopic rod (35) is controlled to retract to the fixed end, so that the movable ring (36) drives the limit block (34) to move out of the inner side of the opening of the housing (30). Under the action of the torsion spring (32), the limit block (34) is reset. At the same time, the bottom plate (28) is reset, and the rack (9) and the slide bar (11) are pressed downward by the extrusion frame (37) and the rotating plate (40), so that the sticky suction cup (13) and the metal structure are adhered, so that the flaw detection head (5) can continue to move forward to perform flaw detection work; S3: During the movement of the flaw detection head (5), when there is a slight protrusion between the flaw detection head (5) and the metal structural part being measured, the movement of the flaw detection head (5) will encounter obstacles and cause shaking, so that the flaw detection head (5) drives the pointer (43) to swing through the bracket (16), the fan-shaped plate (41) and the shaft (42). The staff records the position of the pointer (43) at the marked position of the marking plate (45) at this time, which is convenient for the staff to process the surface of the metal structural part at this place and facilitate the subsequent flaw detection work at this place.

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