Optical detection device for pipeline reinforcement welding seam

Abstract

The invention belongs to the technical field of pipeline welding seam detection, and particularly relates to a pipeline reinforcing welding seam optical detection device which comprises a base. A rotating ring is rotationally mounted in an arc-shaped groove in the top of the base; the inner wall of the rotating ring is fixedly connected with a transverse plate; first hydraulic cylinders are fixedly connected to the two ends of the transverse plate. An optical detection probe is arranged at the top end between the two hydraulic cylinders I; a driving assembly is arranged in the base; the first hydraulic cylinder pushes the optical detection probe to be close to the outer ring of the pipeline welding seam, and the distance between the optical detection probe and the pipeline welding seam is fixed. The driving assembly drives the rotating ring to rotate and drives the optical detection probe to rotate, so that the optical detection probe and the pipeline welding seam rotate at a fixed interval, and optical detection is performed on the pipeline welding seam; therefore, the situation that the definition of a detection image is affected due to the change of the distance between the optical detection probe and the pipeline welding seam is avoided, and then the detection accuracy and sensitivity are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline weld detection, in particular to an optical detection device for pipeline reinforcement welds. Background Art

[0002] After the pipeline is welded, it is necessary to inspect the pipeline weld to detect cracks or defects inside the weld; common inspection methods include: X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, penetrant flaw detection, eddy current flaw detection, gamma ray flaw detection and other methods.

[0003] After the pipeline is welded in the factory according to demand, the pipeline will be transported to the detection mechanism by the conveying mechanism, so that the weld of the pipeline is aligned with the detection probe of the detection mechanism, and then the pipeline is driven to rotate to detect the weld of the pipeline.

[0004] However, when there is a bend in the pipeline, the rotation of the pipeline during inspection will cause a change in the distance between the weld of the pipeline and the detection probe, which will affect the clarity of the detection image and further affect the sensitivity of the detection.

[0005] To this end, the present invention provides a pipeline reinforcement weld optical detection device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the optical detection device for pipeline reinforcement welds described in the present invention includes a detection unit and a conveying unit; the two conveying units are respectively located on both sides of the detection unit; the conveying unit is used to convey the pipeline; the detection unit is used to detect the pipeline weld; the detection unit includes a base; an arc groove is opened on the top of the base; a rotating ring is rotatably installed inside the arc groove on the top of the base; a cross plate is fixedly connected to the inner wall of the rotating ring; a No. 1 hydraulic cylinder is fixedly connected to both ends of the cross plate; an optical detection probe is arranged at the top between the two No. 1 hydraulic cylinders; a driving assembly is arranged inside the base, and the driving assembly is used to drive the rotating ring to rotate.

[0008] Preferably, the driving assembly includes a gear ring fixedly connected to the middle part of the outer ring of the rotating ring; a transmission groove is opened in the middle part of the arc-shaped groove of the base; a rotating rod is rotatably installed inside the transmission groove; a No. 1 gear is fixedly connected to the outer ring of the rotating rod; the No. 1 gear is meshed with the gear ring; a No. 1 motor is fixedly connected to the side of the base; the outer ring of the rotating shaft of the No. 1 motor and the outer ring of the rotating rod are both fixedly connected to synchronous wheels; the outer rings of the two synchronous wheels are provided with synchronous belts.

[0009] Preferably, a plurality of slots are evenly provided on both sides of the arc-shaped slot at the top of the base; a fixing block is bolted inside the slot; a support wheel is rotatably mounted on one side of the fixing block close to the rotating ring; annular grooves are provided on both sides of the outer ring of the rotating ring; and the support wheel is slidably fitted in the annular groove.

[0010] Preferably, a top plate is fixedly connected to the top end of the piston rod of the No. 1 hydraulic cylinder; a roller is rotatably mounted on the middle of the top surface of the top plate; a mounting plate is fixedly connected between the two top plates; and the optical detection probe is fixedly connected to the middle of the mounting plate.

[0011] Preferably, a pair of marking assemblies are provided on the top plate, and the two marking assemblies are respectively located on both sides of the optical detection probe; the marking assemblies are used to mark the damaged position of the pipeline weld; the marking assembly includes a box body fixedly connected to the top plate; a top cover is fixedly connected to the top surface of the box body; a sliding column is slidably installed in the middle of the top cover; a sponge head is provided on the top of the sliding column; a bracket is fixedly connected to the bottom end of the sliding column; a pair of guide rods are fixedly connected between the bottom surface of the top cover and the inner bottom surface of the box body; a pair of guide rods are respectively slidably connected to the two sides of the bracket; a screw rod is rotatably installed between the bottom surface of the top cover and the inner bottom surface of the box body; the screw rod is threadedly matched with the bracket; a face gear is fixedly connected to the bottom outer ring of the screw rod; a No. 2 motor is fixedly connected to the inner bottom surface of the box body; a No. 2 gear is fixedly connected to the outer ring of the rotating shaft of the No. 2 motor; the No. 2 gear is meshed with the face gear.

[0012] Preferably, an inner cavity is opened inside the slide column; a slide seat is slidably mounted on the inner cavity of the slide column; a spring is arranged between the bottom of the slide seat and the bottom of the inner cavity of the slide column; a seepage cylinder is fixedly connected to the middle of the slide seat; a plurality of through grooves are opened around the top outer ring of the seepage cylinder; a sponge head is sleeved on the outer ring of the seepage cylinder; a plurality of convex strips are fixedly connected around the inner ring of the sponge head; the convex strips of the inner ring of the sponge head are engaged with the through grooves of the outer ring of the seepage cylinder; a connecting head is fixedly connected to the bottom of the slide column; the connecting head of the slide column is connected to the bottom of the seepage cylinder by a telescopic hose; a liquid storage tank is arranged on one side of the interior of the box body; marking liquid is stored in the liquid storage tank; a delivery pump is arranged on the side of the liquid storage tank; the water inlet of the delivery pump is connected to the interior of the liquid storage tank; the water outlet of the delivery pump is connected to the connecting head of the slide column through a hose.

[0013] Preferably, a slot plate is fixedly connected to the middle of the top cover; the slide column slides through the slot plate; a slide plate is slidably installed inside the slot plate; and a No. 2 hydraulic cylinder is fixedly connected between the slide plate and one end of the slot plate away from the slide column.

[0014] Preferably, the conveying unit includes a support table; a plurality of cross beams are evenly arranged on the top surface of the support table; fixed seats are symmetrically arranged at both ends of the top surface of the cross beams; a driving roller is arranged in the middle of the fixed seat; the fixed seat and the bottom of the driving roller are fastened by bolts; a fixed plate is rotatably installed on the top of the driving roller; a No. 3 motor is fixedly connected to the top surface of the fixed plate; the rotating shaft of the No. 3 motor is fixedly connected to the driving roller; a vertical plate is bolted to the end of the fixed plate away from the driving roller; a U-shaped frame is arranged on the outer side of the bottom of the vertical plate; and a plurality of bolts are penetrated and locked between the vertical plate and the U-shaped frame.

[0015] Preferably, a plurality of vertical poles are fixedly connected to the bottom surface of the cross beam; the vertical poles slide through the support platform; a connecting frame is fixedly connected to the bottom ends of the plurality of vertical poles; and a No. 3 hydraulic cylinder is provided at the bottom of the connecting frame.

[0016] Preferably, a linear slide is fixedly connected to one side of the top surface of the support platform close to the unloading side of the detection unit; a column is fixedly connected to the top surface of the slider of the linear slide; a slide groove is opened in the middle of the column; a lifting seat is slidably installed inside the slide groove of the column; a No. 4 hydraulic cylinder is fixedly connected to the side of the slider of the linear slide; the top of the No. 4 hydraulic cylinder is fixedly connected to the bottom surface of the lifting seat; a No. 5 hydraulic cylinder is fixedly connected to the middle of the lifting seat; the piston rod of the No. 5 hydraulic cylinder faces the support platform; and a baffle is fixedly connected to the end of the piston rod of the No. 5 hydraulic cylinder.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The optical detection device for pipeline reinforcement welds described in the present invention comprises a base, a rotating ring, a No. 1 hydraulic cylinder, an optical detection probe and a driving assembly; the No. 1 hydraulic cylinder pushes the optical detection probe close to the outer ring of the pipeline weld, and fixes the distance between the optical detection probe and the pipeline weld; the driving assembly drives the rotating ring to rotate, driving the optical detection probe to rotate, so that the optical detection probe and the pipeline weld rotate at a fixed distance, and optically detects the pipeline weld; thereby avoiding the situation where the clarity of the detection image is affected by the change in the distance between the optical detection probe and the pipeline weld, thereby ensuring the accuracy and sensitivity of the detection.

[0019] 2. The optical detection device for pipeline reinforcement welds described in the present invention includes a box, a sliding column, a sponge head, a guide rod, a bracket, a screw rod, a face gear, a No. 2 motor and a No. 2 gear; when the optical detection probe performs a circumferential detection on the pipeline weld, when it detects that the pipeline weld has damage defects; at this time, the No. 2 motor drives the No. 2 gear to rotate, drives the face gear to rotate, drives the screw rod to rotate, so that the bracket slides along the guide rod, pushes the sliding column to slide from the inside of the box, so that the sponge head at the top of the sliding column squeezes and contacts the pipeline weld with damage defects; the sponge heads on both sides print marks on both sides of the pipeline weld with damage defects, so as to facilitate the staff to conduct re-inspection and maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 is a three-dimensional diagram of the detection unit in the present invention;

[0023] Figure 3 is an exploded diagram of the detection unit in the present invention;

[0024] Figure 4 is a three-dimensional diagram of the mounting plate of the present invention;

[0025] Figure 5 is a three-dimensional diagram of a marking assembly in the present invention;

[0026] Figure 6 is an exploded view of the marked components of the present invention;

[0027] Figure 7 It is the internal structure diagram of the box body in the present invention;

[0028] Figure 8 is a three-dimensional diagram of the slot plate in the present invention;

[0029] Fig. 9 is an exploded view of the sliding column in the present invention;

[0030] Fig.10 is a cross-sectional view of the sliding column in the present invention;

[0031] Fig.11 is a three-dimensional diagram of the conveying unit in the present invention;

[0032] Fig.12 is an exploded view of the conveying unit in the present invention;

[0033] Fig.13 is a three-dimensional diagram of the crossbeam in the present invention;

[0034] Fig.14is a three-dimensional diagram of the driving roller in the present invention;

[0035] Fig.15 is a three-dimensional diagram of a column in the present invention;

[0036] In the figure: 1, base; 2, rotating ring; 3, horizontal plate; 4, hydraulic cylinder No. 1; 5, optical detection probe; 6, gear ring; 7, transmission groove; 8, rotating rod; 9, gear No. 1; 10, motor No. 1; 11, synchronous wheel; 12, synchronous belt; 13, card slot; 14, fixed block; 15, support wheel; 16, ring groove; 17, top plate; 18, roller; 19, mounting plate; 20, box body; 21, top cover; 22, sliding column; 23, sponge head; 24, bracket; 25, guide rod; 26, screw rod; 27, face gear; 28, motor No. 2; 29. Gear No. 2; 30. Slide seat; 31. Spring; 32. Seepage cylinder; 33. Liquid storage tank; 34. Delivery pump; 35. Slot plate; 36. Slide plate; 37. Hydraulic cylinder No. 2; 38. Support table; 39. Crossbeam; 40. Fixed seat; 41. Driving roller; 42. Fixed plate; 43. Motor No. 3; 44. Vertical plate; 45. U-shaped frame; 46. Vertical pole; 47. Connecting frame; 48. Hydraulic cylinder No. 3; 49. Linear slide rail; 50. Column; 51. Lifting seat; 52. Hydraulic cylinder No. 4; 53. Hydraulic cylinder No. 5; 54. Baffle. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figures 1 to 4 As shown, an optical detection device for pipeline reinforcement welds according to an embodiment of the present invention comprises a detection unit and a conveying unit; two of the conveying units are respectively located on both sides of the detection unit; the conveying unit is used to convey the pipeline; the detection unit is used to detect the pipeline weld; the detection unit comprises a base 1; an arc groove is provided on the top of the base 1; a rotating ring 2 is rotatably installed inside the arc groove on the top of the base 1; a transverse plate 3 is fixedly connected to the inner wall of the rotating ring 2; a No. 1 hydraulic cylinder 4 is fixedly connected to both ends of the transverse plate 3; an optical detection probe 5 is arranged at the top between the two No. 1 hydraulic cylinders 4; a driving component is arranged inside the base 1, and the driving component is used to drive the rotating ring 2 to rotate;

[0039] During operation, the welded pipeline is transported by the transport unit to the detection unit for weld detection; the transport unit passes the pipeline through the rotating ring 2 so that the weld of the pipeline is aligned with the optical detection probe 5; the transport unit stops transporting the pipeline so that the pipeline is in a stationary state; at this time, the No. 1 hydraulic cylinder 4 pushes the optical detection probe 5 close to the outer ring of the pipeline weld, and fixes the distance between the optical detection probe 5 and the pipeline weld; the driving component drives the rotating ring 2 to rotate, driving the optical detection probe 5 to rotate, so that the optical detection probe 5 and the pipeline weld rotate at a fixed distance, and optically detects the pipeline weld; thereby avoiding the situation where the clarity of the detection image is affected by the change in the distance between the optical detection probe 5 and the pipeline weld, thereby ensuring the accuracy and sensitivity of the detection.

[0040] like Figures 1 to 3 As shown, the driving assembly includes a gear ring 6 fixedly connected to the middle of the outer ring of the rotating ring 2; a transmission groove 7 is opened in the middle of the arc groove of the base 1; a rotating rod 8 is rotatably installed inside the transmission groove 7; a No. 1 gear 9 is fixedly connected to the outer ring of the rotating rod 8; the No. 1 gear 9 is meshed with the gear ring 6; a No. 1 motor 10 is fixedly connected to the side of the base 1; the outer ring of the rotating shaft of the No. 1 motor 10 and the outer ring of the rotating rod 8 are both fixedly connected with a synchronous wheel 11; the outer rings of the two synchronous wheels 11 are sleeved with a synchronous belt 12;

[0041] During operation, the No. 1 motor 10 drives the synchronous wheel 11 to rotate, and through the transmission of the synchronous belt 12 and the synchronous wheel 11, drives the rotating rod 8 to rotate, drives the No. 1 gear 9 to rotate, drives the gear ring 6 and the rotating ring 2 to rotate, thereby driving the optical detection probe 5 to rotate, and then realizes the optical detection probe 5 to perform circumferential detection of the pipeline weld.

[0042] like Figures 1 to 3 As shown, a plurality of slots 13 are evenly provided on both sides of the arc-shaped slot at the top of the base 1; a fixing block 14 is bolted inside the slot 13; a support wheel 15 is rotatably installed on one side of the fixing block 14 close to the rotating ring 2; annular grooves 16 are provided on both sides of the outer ring of the rotating ring 2; the support wheel 15 is slidably matched with the annular groove 16;

[0043] During operation, the fixing block 14 is locked and fixed inside the slot 13 by bolts, and the multiple supporting wheels 15 are slidably matched with the ring groove 16 of the outer ring of the rotating ring 2 to lift the rotating ring 2, thereby reducing the resistance encountered by the rotating ring 2 during rotation, thereby improving the stability of the rotating ring 2 during rotation.

[0044] like Figures 2 to 4As shown, a top plate 17 is fixedly connected to the top of the piston rod of the No. 1 hydraulic cylinder 4; a roller 18 is rotatably mounted on the middle of the top surface of the top plate 17; a mounting plate 19 is fixedly connected between the two top plates 17; and the optical detection probe 5 is fixedly connected to the middle of the mounting plate 19;

[0045] During operation, when the No. 1 hydraulic cylinder 4 pushes the top plate 17 close to the outer ring of the pipe weld, it drives the mounting plate 19 and the optical detection probe 5 close to the outer ring of the pipe weld, and the roller 18 on the top plate 17 contacts the outer wall of the pipe, limiting the distance between the optical detection probe 5 and the pipe weld, avoiding the optical detection probe 5 from hitting the pipe weld, and improving the safety of the optical detection probe 5; by the roller 18 contacting the outer wall of the pipe, the rotating ring 2 rotates, driving the roller 18 to roll around the outer wall of the pipe, thereby improving the stability of the optical detection probe 5 when moving around the pipe weld, and then improving the stability of the optical detection probe 5 during detection.

[0046] like Figures 4 to 7 As shown, a pair of marking components are provided on the top plate 17, and the two marking components are respectively located on both sides of the optical detection probe 5; the marking components are used to mark the damaged position of the pipeline weld; the marking components include a box body 20 fixed to the top plate 17; a top cover 21 is fixed to the top surface of the box body 20; a sliding column 22 is slidably installed in the middle of the top cover 21; a sponge head 23 is provided on the top of the sliding column 22; a bracket 24 is fixed to the bottom end of the sliding column 22; the bottom surface of the top cover 21 and the box body 20 A pair of guide rods 25 are fixedly connected between the inner bottom surfaces of the housing 20; the pair of guide rods 25 are slidably connected to the two sides of the bracket 24 respectively; a screw rod 26 is rotatably installed between the bottom surface of the top cover 21 and the inner bottom surface of the box body 20; the screw rod 26 is threadedly matched with the bracket 24; a face gear 27 is fixedly connected to the outer ring of the bottom of the screw rod 26; a No. 2 motor 28 is fixedly connected to the inner bottom surface of the box body 20; a No. 2 gear 29 is fixedly connected to the outer ring of the rotating shaft of the No. 2 motor 28; the No. 2 gear 29 is meshed with the face gear 27;

[0047] During operation, when the optical detection probe 5 performs a circumferential detection on the pipeline weld, when damage defects are detected in the pipeline weld; at this time, the No. 2 motor 28 drives the No. 2 gear 29 to rotate, drives the face gear 27 to rotate, drives the screw 26 to rotate, so that the bracket 24 slides along the guide rod 25, and pushes the slide column 22 to slide from the inside of the box body 20, so that the sponge head 23 at the top of the slide column 22 squeezes and contacts the pipeline weld with damage defects; the sponge heads 23 on both sides print marks on both sides of the pipeline weld with damage defects, so as to facilitate the staff to conduct re-inspection and maintenance work.

[0048] like Figures 9 and 10As shown, the slide column 22 has an inner cavity; a slide seat 30 is slidably mounted in the inner cavity of the slide column 22; a spring 31 is arranged between the bottom of the slide seat 30 and the bottom of the inner cavity of the slide column 22; a liquid seepage cylinder 32 is fixedly connected to the middle of the slide seat 30; a plurality of through grooves are arranged around the top outer ring of the liquid seepage cylinder 32; a sponge head 23 is sleeved on the outer ring of the liquid seepage cylinder 32; a plurality of convex strips are fixedly connected around the inner ring of the sponge head 23; the convex strips of the inner ring of the sponge head 23 are connected to the liquid seepage cylinder The through grooves of the outer ring of 32 are engaged with each other; a connector is fixedly connected to the bottom of the sliding column 22; the connector of the sliding column 22 is connected to the bottom of the seepage cylinder 32 through a telescopic hose; a liquid storage tank 33 is arranged on one side of the interior of the box body 20; the marking liquid is stored in the liquid storage tank 33; a delivery pump 34 is arranged on the side of the liquid storage tank 33; the water inlet of the delivery pump 34 is connected to the interior of the liquid storage tank 33; the water outlet of the delivery pump 34 is connected to the connector of the sliding column 22 through a hose;

[0049] When working, the delivery pump 34 delivers the marking liquid stored in the liquid storage tank 33 to the inside of the liquid seepage cylinder 32. The marking liquid contacts the convex strips on the inner circle of the sponge head 23 through the through grooves on the outer circle of the liquid seepage cylinder 32, so that the marking liquid penetrates into the sponge head 23, thereby providing the sponge head 23 with marking liquid, and at the same time, preventing the sponge head 23 from absorbing too much marking liquid.

[0050] By means of the provided spring 31 and the slide seat 30, the seepage cylinder 32 and the sponge head 23 have a tendency to slide out of the slide column 22, thereby reducing the deformation of the sponge head 23, so that the sponge head 23 can be stably squeezed and contacted with the outer wall of the pipe, thereby improving the clarity of the marking on the outer wall of the pipe.

[0051] like Figure 5 , Figure 6 and Figure 8 As shown, a slot plate 35 is fixedly connected to the middle of the top cover 21; the slide column 22 slides through the slot plate 35; a slide plate 36 is slidably installed inside the slot plate 35; a second hydraulic cylinder 37 is fixedly connected between the slide plate 36 and one end of the slot plate 35 away from the slide column 22;

[0052] During operation, when the slide column 22 is retracted into the interior of the box body 20, the sponge head 23 is located inside the slide plate 36, and the No. 2 hydraulic cylinder 37 pushes the slide plate 36 to slide along the groove plate 35 to cover the top of the sponge head 23, thereby reducing the leakage of the marking liquid inside the sponge head 23. At the same time, it prevents external dust from falling onto the sponge head 23 and causing contamination of the sponge head 23.

[0053] like Figure 1 , Figures 11 to 14As shown, the conveying unit includes a support platform 38; a plurality of cross beams 39 are evenly arranged on the top surface of the support platform 38; fixed seats 40 are symmetrically arranged at both ends of the top surface of the cross beam 39; a driving roller 41 is arranged in the middle of the fixed seat 40; the fixed seat 40 and the bottom of the driving roller 41 are fastened by bolts; a fixed plate 42 is rotatably installed on the top of the driving roller 41; a No. 3 motor 43 is fixedly connected to the top surface of the fixed plate 42; the rotating shaft of the No. 3 motor 43 is fixedly connected to the driving roller 41; a vertical plate 44 is bolted to the end of the fixed plate 42 away from the driving roller 41; a U-shaped frame 45 is arranged on the outer side of the bottom of the vertical plate 44; a plurality of bolts are penetrated and locked between the vertical plate 44 and the U-shaped frame 45;

[0054] During operation, the height is adjusted along the middle of the U-shaped frame 45 through the vertical plate 44, and bolts are used to penetrate and lock it to control the height of one end of the driving roller 41 and the angle of the driving roller 41, so that the driving rollers 41 on both sides present an inverted figure eight shape, and the No. 3 motor 43 drives the driving roller 41 to rotate and drives the pipeline to slide, thereby facilitating the lifting and transportation of pipeline machines with different diameters.

[0055] like Figure 1 and Fig.12 As shown, a plurality of vertical rods 46 are fixedly connected to the bottom surface of the cross beam 39; the vertical rods 46 slide through the support platform 38; a connecting frame 47 is fixedly connected to the bottom ends of the plurality of vertical rods 46; a No. 3 hydraulic cylinder 48 is provided at the bottom of the connecting frame 47;

[0056] During operation, the No. 3 hydraulic cylinder 48 pushes the connecting frame 47 and the vertical rod 46 to rise and fall, driving the supporting platform 38 and the driving roller 41 to rise and fall, driving the lifted pipe to adjust the height, so as to facilitate the staff to adjust the axis of the pipe to align with the axis of the rotating ring 2, and then facilitate optical inspection of pipe welds of different diameters.

[0057] like Figure 1 , Fig.11 , Fig.12 and Fig.15 As shown, a linear slide 49 is fixedly connected to one side of the top surface of the support platform 38 near the unloading side of the detection unit; a column 50 is fixedly connected to the top surface of the slider of the linear slide 49; a slide groove is opened in the middle of the column 50; a lifting seat 51 is slidably installed inside the slide groove of the column 50; a No. 4 hydraulic cylinder 52 is fixedly connected to the side of the slider of the linear slide 49; the top of the No. 4 hydraulic cylinder 52 is fixedly connected to the bottom surface of the lifting seat 51; a No. 5 hydraulic cylinder 53 is fixedly connected to the middle of the lifting seat 51; the piston rod of the No. 5 hydraulic cylinder 53 faces the support platform 38; and a baffle 54 is fixedly connected to the end of the piston rod of the No. 5 hydraulic cylinder 53;

[0058] During operation, according to the position of the pipeline weld on the pipeline, the position of the slider of the linear slide rail 49 is controlled and adjusted, so that when the pipeline weld is aligned with the optical detection probe 5, the baffle 54 can contact and block the end of the pipeline; according to the diameter of the pipeline, the fourth hydraulic cylinder 52 is controlled to push the lifting seat 51 to move up and down along the slide groove of the column 50, so that the baffle 54 is kept level with the pipeline;

[0059] When the conveying unit passes the pipeline through the rotating ring 2 and needs to align the weld of the pipeline with the optical detection probe 5, the No. 5 hydraulic cylinder 53 pushes the baffle 54 to move horizontally, so that the baffle 54 blocks and fixes the end of the pipeline. At the same time, the conveying unit stops conveying; thereby reducing the sliding of the pipeline due to inertia and improving the accuracy of the alignment of the weld of the pipeline with the optical detection probe 5.

[0060] Working principle: According to the position of the pipeline weld on the pipeline, the position of the slider of the linear slide rail 49 is controlled and adjusted, so that when the pipeline weld is aligned with the optical detection probe 5, the baffle 54 can contact and block the end of the pipeline; according to the diameter of the pipeline, the No. 4 hydraulic cylinder 52 is controlled to push the lifting seat 51 to move up and down along the slide groove of the column 50, so that the baffle 54 is kept level with the pipeline;

[0061] The welded pipe is placed between the driving rollers 41 on both sides; the No. 3 hydraulic cylinder 48 pushes the connecting frame 47 and the vertical rod 46 to move up and down, drives the support platform 38 and the driving roller 41 to move up and down, drives the lifted pipe to adjust the height, and adjusts the axis of the pipe to align with the axis of the rotating ring 2; the No. 3 motor 43 drives the driving roller 41 to rotate, drives the pipe to move, and the pipe passes through the rotating ring 2; at the same time, the No. 5 hydraulic cylinder 53 pushes the baffle 54 to move horizontally, so that the baffle 54 blocks and fixes the end of the pipe, and the conveying unit stops conveying; so that the weld of the pipe is aligned with the optical detection probe 5;

[0062] When the No. 1 hydraulic cylinder 4 pushes the top plate 17 close to the outer ring of the pipe weld, it drives the mounting plate 19 and the optical detection probe 5 close to the outer ring of the pipe weld, and the roller 18 on the top plate 17 contacts the outer wall of the pipe, limiting the distance between the optical detection probe 5 and the pipe weld, thereby preventing the optical detection probe 5 from hitting the pipe weld;

[0063] The first motor 10 drives the synchronous wheel 11 to rotate, and through the transmission of the synchronous belt 12 and the synchronous wheel 11, drives the rotating rod 8 to rotate, drives the first gear 9 to rotate, drives the gear ring 6 and the rotating ring 2 to rotate; drives the optical detection probe 5 to rotate, so that the optical detection probe 5 and the pipeline weld are rotated at a fixed distance, and the pipeline weld is optically detected; thereby avoiding the situation where the clarity of the detection image is affected by the change of the distance between the optical detection probe 5 and the pipeline weld, thereby ensuring the accuracy and sensitivity of the detection;

[0064] When damage defects are detected in the pipeline weld, the delivery pump 34 delivers the marking liquid stored in the liquid storage tank 33 to the inside of the liquid seepage cylinder 32. The marking liquid contacts the convex strips on the inner circle of the sponge head 23 through the through grooves on the outer circle of the liquid seepage cylinder 32, so that the marking liquid penetrates into the sponge head 23.

[0065] The No. 2 hydraulic cylinder 37 contracts, driving the slide plate 36 to slide, exposing the slide column 22 and the sponge head 23, and the No. 2 motor 28 drives the No. 2 gear 29 to rotate, driving the face gear 27 to rotate, driving the screw rod 26 to rotate, so that the bracket 24 slides along the guide rod 25, pushing the slide column 22 to slide from the inside of the box 20, so that the sponge head 23 at the top of the slide column 22 presses and contacts the pipe weld with damage defects; the sponge heads 23 on both sides print marks on both sides of the pipe weld with damage defects; thereby facilitating the staff to conduct re-inspection and maintenance work;

[0066] After the pipeline weld inspection is completed, when the slide column 22 is retracted into the box body 20, the sponge head 23 is inside the slide plate 36, and the No. 2 hydraulic cylinder 37 pushes the slide plate 36 to slide along the groove plate 35 to cover the top of the sponge head 23, thereby reducing the leakage of the marking liquid inside the sponge head 23. At the same time, it prevents external dust from falling on the sponge head 23 and causing contamination of the sponge head 23; the No. 1 hydraulic cylinder 4 contracts, driving the optical detection probe 5 away from the pipeline weld; at the same time, the No. 5 hydraulic cylinder 53 contracts, driving the baffle 54 to move out from the end of the pipeline; the conveying unit continues to convey the inspected pipeline for unloading.

[0067] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An optical detection device for pipeline reinforcement welds, characterized in that: It includes a detection unit and a conveying unit; the two conveying units are respectively located on both sides of the detection unit; the conveying unit is used to convey the pipeline; the detection unit is used to detect the pipeline weld; The detection unit comprises a base (1); an arc-shaped groove is provided on the top of the base (1); a rotating ring (2) is rotatably mounted inside the arc-shaped groove on the top of the base (1); a transverse plate (3) is fixedly connected to the inner wall of the rotating ring (2); a No. 1 hydraulic cylinder (4) is fixedly connected to both ends of the transverse plate (3); an optical detection probe (5) is provided at the top between the two No. 1 hydraulic cylinders (4); a driving component is provided inside the base (1), and the driving component is used to drive the rotating ring (2) to rotate.

2. The optical detection device for pipeline reinforcement welds according to claim 1, characterized in that: The driving assembly comprises a gear ring (6) fixedly connected to the middle part of the outer ring of the rotating ring (2); a transmission groove (7) is opened in the middle part of the arc groove of the base (1); a rotating rod (8) is rotatably installed inside the transmission groove (7); a No. 1 gear (9) is fixedly connected to the outer ring of the rotating rod (8); the No. 1 gear (9) is meshed with the gear ring (6); a No. 1 motor (10) is fixedly connected to the side of the base (1); the outer ring of the rotating shaft of the No. 1 motor (10) and the outer ring of the rotating rod (8) are both fixedly connected to synchronous wheels (11); the outer rings of the two synchronous wheels (11) are sleeved with synchronous belts (12).

3. The optical detection device for pipeline reinforcement welds according to claim 1, characterized in that: A plurality of slots (13) are evenly provided on both sides of the arc-shaped slot at the top of the base (1); a fixing block (14) is bolted inside the slot (13); a support wheel (15) is rotatably mounted on a side of the fixing block (14) close to the rotating ring (2); annular grooves (16) are provided on both sides of the outer ring of the rotating ring (2); and the support wheel (15) is slidably matched with the annular groove (16).

4. The optical detection device for pipeline reinforcement welds according to claim 1, characterized in that: A top plate (17) is fixedly connected to the top end of the piston rod of the No. 1 hydraulic cylinder (4); a roller (18) is rotatably mounted in the middle of the top surface of the top plate (17); a mounting plate (19) is fixedly connected between the two top plates (17); and the optical detection probe (5) is fixedly connected to the middle of the mounting plate (19).

5. The optical detection device for pipeline reinforcement welds according to claim 4, characterized in that: A pair of marking components is provided on the top plate (17), and the two marking components are respectively located on both sides of the optical detection probe (5); the marking components are used to mark the damaged position of the pipeline weld; The marking assembly comprises a box body (20) fixedly connected to a top plate (17); a top cover (21) is fixedly connected to the top surface of the box body (20); a sliding column (22) is slidably mounted in the middle of the top cover (21); a sponge head (23) is arranged on the top of the sliding column (22); a bracket (24) is fixedly connected to the bottom end of the sliding column (22); a pair of guide rods (25) are fixedly connected between the bottom surface of the top cover (21) and the inner bottom surface of the box body (20); the pair of guide rods (25) are respectively connected to the bracket (24) 4) are slidably connected on both sides; a screw rod (26) is rotatably installed between the bottom surface of the top cover (21) and the inner bottom surface of the box body (20); the screw rod (26) is threadedly matched with the bracket (24); the bottom outer ring of the screw rod (26) is fixedly connected with a face gear (27); the inner bottom surface of the box body (20) is fixedly connected with a No. 2 motor (28); the outer ring of the rotating shaft of the No. 2 motor (28) is fixedly connected with a No. 2 gear (29); the No. 2 gear (29) is meshed with the face gear (27).

6. The optical detection device for pipeline reinforcement welds according to claim 5, characterized in that: The slide column (22) has an inner cavity; a slide seat (30) is slidably mounted in the inner cavity of the slide column (22); a spring (31) is arranged between the bottom of the slide seat (30) and the bottom of the inner cavity of the slide column (22); a liquid seepage cylinder (32) is fixedly connected to the middle of the slide seat (30); a plurality of through grooves are arranged around the top outer ring of the liquid seepage cylinder (32); a sponge head (23) is sleeved on the outer ring of the liquid seepage cylinder (32); a plurality of convex strips are fixedly connected around the inner ring of the sponge head (23); the convex strips of the inner ring of the sponge head (23) are connected to the liquid seepage cylinder (3 2) The through grooves of the outer ring are engaged with each other; a connector is fixedly connected to the bottom of the sliding column (22); the connector of the sliding column (22) is connected to the bottom of the seepage cylinder (32) through a telescopic hose; a liquid storage tank (33) is provided on one side of the interior of the box body (20); the interior of the liquid storage tank (33) stores marking liquid; a delivery pump (34) is provided on the side of the liquid storage tank (33); the water inlet of the delivery pump (34) is connected to the interior of the liquid storage tank (33); the water outlet of the delivery pump (34) is connected to the connector of the sliding column (22) through a hose.

7. The optical detection device for pipeline reinforcement welds according to claim 5, characterized in that: A slot plate (35) is fixedly connected to the middle of the top cover (21); the slide column (22) slides through the slot plate (35); a slide plate (36) is slidably installed inside the slot plate (35); a second hydraulic cylinder (37) is fixedly connected between the slide plate (36) and one end of the slot plate (35) away from the slide column (22).

8. The optical detection device for pipeline reinforcement welds according to claim 1, characterized in that: The conveying unit comprises a support platform (38); a plurality of cross beams (39) are evenly arranged on the top surface of the support platform (38); fixed seats (40) are symmetrically arranged at both ends of the top surface of the cross beam (39); a driving roller (41) is arranged in the middle of the fixed seat (40); the fixed seat (40) and the bottom of the driving roller (41) are fastened by bolts; a fixed plate (42) is rotatably installed on the top of the driving roller (41); a No. 3 motor (43) is fixedly connected to the top surface of the fixed plate (42); the rotating shaft of the No. 3 motor (43) is fixedly connected to the driving roller (41); a vertical plate (44) is bolted to one end of the fixed plate (42) away from the driving roller (41); a U-shaped frame (45) is arranged on the outer side of the bottom of the vertical plate (44); the vertical plate (44) and the U-shaped frame (45) are penetrated and locked by a plurality of bolts.

9. The optical detection device for pipeline reinforcement welds according to claim 8, characterized in that: The bottom surface of the cross beam (39) is fixedly connected to a plurality of vertical rods (46); the vertical rods (46) slide through the support platform (38); the bottom ends of the plurality of vertical rods (46) are fixedly connected to a connecting frame (47); and a No. 3 hydraulic cylinder (48) is provided at the bottom of the connecting frame (47).

10. The optical detection device for pipeline reinforcement welds according to claim 8, characterized in that: A linear slide rail (49) is fixedly connected to one side of the top surface of the support platform (38) close to the unloading side of the detection unit; a column (50) is fixedly connected to the top surface of the slider of the linear slide rail (49); a slide groove is opened in the middle of the column (50); a lifting seat (51) is slidably installed inside the slide groove of the column (50); a No. 4 hydraulic cylinder (52) is fixedly connected to the side of the slider of the linear slide rail (49); the top of the No. 4 hydraulic cylinder (52) is fixedly connected to the bottom surface of the lifting seat (51); a No. 5 hydraulic cylinder (53) is fixedly connected to the middle of the lifting seat (51); the piston rod of the No. 5 hydraulic cylinder (53) faces the support platform (38); and a baffle (54) is fixedly connected to the end of the piston rod of the No. 5 hydraulic cylinder (53).

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