Three-dimensional defect visual detection system and method for current transformer

Abstract

The invention provides a current transformer three-dimensional defect visual detection system and method, and relates to the technical field of defect detection.The current transformer three-dimensional defect visual detection system comprises a conveying table, side frames are installed on the two sides of the conveying table, clamping assemblies are fixed to the surface of a belt of the conveying table at equal intervals, and transformer bodies are clamped in the clamping assemblies. A mutual inductor is continuously conveyed through the conveying table and the clamping assembly, when entering a detection station, the mutual inductor is lifted through a clamping block of the detection assembly, the mutual inductor enters a cleaning area firstly, a shell, side edges and the interior of a threading hole of the mutual inductor are wiped through a first wiping plate, a second wiping plate and a wiping sponge, dust and dirt are removed, and then the mutual inductor is cleaned; a second wiping plate and an identification panel are replaced by a connecting plate to detect the front and back sides of a shell of the mutual inductor, an identification module arranged in a clamping block detects the side face of the mutual inductor, an identification block detects the interior of a threading hole of the mutual inductor, and the detection efficiency is effectively improved for the mutual inductor needing multiple positions.

Description

Technical Field

[0001] The present invention relates to the technical field of defect detection, and in particular to a three-dimensional defect visualization detection system and method for a current transformer. Background Art

[0002] In the smart grid industry, the manufacturing of transformers, rectifiers, and inductors, such as DC converter transformers and intelligent reactors, is applicable to the manufacture of distribution switchgear and control equipment for intelligent power distribution systems and facilities. Electromagnetic current transformers are currently one of the most important metering devices in my country's power industry, widely used in power transmission at power plants and substations. Electromagnetic current transformers are typically connected to test instruments, relay protection, and automatic devices, operating permanently on power lines to measure current, power, and energy.

[0003] After the current transformer is produced, the through-hole needs to be inspected for defects on its outer surface and wire holes to check for damage. When performing defect detection, existing equipment has low detection efficiency because the front, back and sides of the transformer shell need to be inspected, as well as the inside of the wire holes. At the same time, the presence of dust on the transformer will also have a certain impact on the detection results. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a three-dimensional defect visualization detection system and method for current transformers to solve the problems raised in the above background technology. The present invention has a novel structure. The transformer is continuously transported by a conveyor platform and a clamping assembly. When entering the inspection station, the transformer is lifted by the clamping block of the inspection assembly and first enters the cleaning area. The first wiping plate, the second wiping plate and the wiping sponge wipe the outer shell, the side and the inside of the threading hole of the transformer to clean dust and dirt. The second wiping plate and the identification panel are replaced by the connecting plate to inspect the front and back of the outer shell of the transformer. The built-in recognition module of the clamping block inspects the side of the transformer, and the identification block inspects the inside of the threading hole of the transformer. For transformers that require multiple positions, the detection efficiency is effectively improved.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions: a three-dimensional defect visualization detection system for current transformers, comprising a conveyor platform, side frames are installed on both sides of the conveyor platform, and clamping components are fixed at equal intervals on the belt surface of the conveyor platform, the internal clamping of the clamping component holds the transformer body, and the middle surface of the transformer body is provided with a threading hole, the clamping component comprises a bottom plate, the bottom plate is fixed on the belt surface of the conveyor platform, two clamping frames are slidably installed on the top of the bottom plate, and the clamping frames are clamped on both sides of the bottom of the transformer body, and the top of the side frame A top box is fixed on the top, and a detection assembly is provided at the bottom of the top box, the detection assembly includes a first wiping plate, a first wiping plate is provided at the position of the bottom of the top box facing the upper end of the transformer body, and connecting plates are provided on both sides of the first wiping plate, a second wiping plate is installed at the bottom of the connecting plate, and an identification panel is provided on the back of the second wiping plate, hollow plates are fixed on both sides of the bottom of the top box, and a hollow cylinder is slidably inserted at the position of the threading hole at the bottom of the hollow plate corresponding to the threading hole, a circular plate is provided at the front end of the hollow cylinder, an identification block is provided inside the circular plate, and a wiping sponge is fixed to the outer end of the identification block.

[0006] Furthermore, the clamping assembly also includes a first slide groove, and the first slide groove is opened on both sides of the base plate, and the bottom of both sides of the clamping frame slides along the inside of the first slide groove. A first spring is fixed between the first slide groove and the bottom of the clamping frame, and a convex plate is fixed on the outer side of the two clamping frames, and the positions of the two convex plates are opposite.

[0007] Furthermore, the detection component also includes a second slide groove, a second slide groove is opened on the surface of the side frame, and a screw rod is slidably connected inside the second slide groove, a push rod is threadedly sleeved on the surface of the screw rod, and the push rod is in extrusion contact with the convex plate on the corresponding side.

[0008] Furthermore, an electric telescopic plate is fixed to the top of the push rod, and a connecting seat is fixed to the extended end of the electric telescopic plate, and a first electric push rod is fixed to the outside of the connecting seat, and a clamping block is fixed to the extended end of the first electric push rod, and the clamping block is in extrusion contact with the side of the transformer body, and an identification module is provided on the surface of the clamping block.

[0009] Furthermore, a bidirectional electric push rod is fixed inside the top box, and a vertical plate is fixed to the extended end of the bidirectional electric push rod, the tail end of the hollow cylinder is rotatably installed on the bottom of the vertical plate, and a second electric push rod is rotatably installed on the back of the vertical plate, the extended end of the second electric push rod penetrates into the interior of the hollow cylinder, a push rod is fixed inside the hollow cylinder, and both ends of the push rod are fixedly connected to the identification block and the extended end of the second electric push rod.

[0010] Furthermore, the hollow plate is located on the outer ring of the hollow cylinder and is rotatably installed with a gear ring. Raised strips are symmetrically fixed on the surface of the hollow cylinder, and the gear ring is slidably clamped on the raised strips. The hollow plate is located on the bottom of the gear ring and is rotatably installed with a first gear, and the first gear is meshed with the gear ring. The hollow plate is located on the outside of the first gear and is fixed with a drive motor, and the output end of the drive motor is fixedly connected to the first gear.

[0011] Furthermore, a first connecting rod is rotatably mounted on the vertical plate parallel to the surface of the connecting plate, and a second connecting rod is rotatably mounted on the first connecting rod through the notch of the hollow plate, and the other end of the second connecting rod is rotatably connected to the connecting plate through a rotating shaft.

[0012] Furthermore, a third slide groove is provided at the position corresponding to the connecting plate at the bottom of the top box, a slide is slidably connected inside the third slide groove, the top of the connecting plate is fixedly connected to the slide, a second spring is fixed between the third slide groove and the slide, and a spring telescopic rod is equidistantly fixed on the top box between the two third slide grooves, and the extended end of the spring telescopic rod is fixedly connected to the first wiping plate.

[0013] Furthermore, fourth slide grooves are provided on both sides of the bottom of the connecting plate, and tooth frames are fixed at the positions of the fourth slide grooves on both sides of the connecting plate corresponding to the top of the identification panel and the second wiping plate, and the top of the tooth frame slides along the inside of the fourth slide groove. A second gear is rotatably installed at the bottom of one end of the connecting plate, and the second gear is meshed with the rack inside the gear frame, and the connecting plate has a built-in motor to drive the second gear to rotate.

[0014] A method for visually detecting three-dimensional defects of a current transformer, the method comprising the following steps:

[0015] (1) The bottom of the transformer body is clamped by two clamping frames through the elastic force of the first spring, and is continuously transported and tested as the conveyor belt moves;

[0016] (2) When the transformer body enters the detection station, the motor drives the screw to rotate, and the push rod cooperates with the screw to slide along the second slide groove until one end of the push rod contacts the convex plate and pushes the clamping frame away from the transformer body. At this time, the clamping block is extended by the first electric push rod to clamp the two sides of the transformer body. The electric telescopic plate is extended to move the transformer body out of the clamping assembly and enter the detection station;

[0017] (3) The top of the transformer body is in squeeze contact with the first wiping plate, and the front and back sides are in sliding contact with the second wiping plate. After the clamping block is retracted, the driving motor drives the first gear to rotate and engage with the gear ring, and the hollow cylinder and the circular plate rotate together. Because the circular plate squeezes the front and back sides of the transformer body at this time, the transformer body rotates, and the side contacting the first wiping plate keeps changing, wiping and cleaning the side of the transformer body;

[0018] (4) The clamping block continues to clamp the two sides of the transformer body, and the second electric push rod pushes the push rod to move, pushes out the wiping sponge and the identification block and inserts them into the threading hole. The rotation of the hollow cylinder can drive the wiping sponge to clean the inside of the threading hole. After the two wiping sponges are squeezed, the identification block can move along the inside of the threading hole to detect defects inside the threading hole;

[0019] (5) The motor built into the connecting plate drives the second gear to rotate and engage with the two tooth frames, so that the tooth frames slide along the inside of the fourth slide groove. The second wiping plate and the identification panel move with their respective tooth frames and replace their positions. When the circular plate leaves the front and back sides of the transformer body, the connecting plate will return to the front and back sides of the transformer body again. At this time, the identification panel is facing the transformer body, and defects on the front and back sides of the transformer body are detected through the identification panel.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention drives the second gear to rotate and engage with the two tooth frames through the motor built into the connecting plate, so that the tooth frames slide along the inside of the fourth slide groove. The second wiping plate and the identification panel move with their respective tooth frames and replace their positions. When the circular plate leaves the front and back sides of the transformer body, the connecting plate will return to the front and back sides of the transformer body again. At this time, the identification panel is facing the transformer body, and defects on the front and back sides of the transformer body are detected through the identification panel.

[0022] 2. The present invention drives the vertical plate and the hollow cylinder through the hollow plate to move toward the transformer body through the bidirectional electric push rod, and the first connecting rod and the second connecting rod pass through the notch of the hollow plate to push the connecting plate and the second wiping plate to slide along the third slide groove until the circular plate is squeezed and contacted with the front and back sides of the transformer body. After the clamping block is retracted, the driving motor drives the first gear to rotate and mesh with the gear ring. Through the convex strips on the outer surface of the hollow cylinder, the hollow cylinder can slide along the inner ring of the gear ring and maintain the clamping relationship between the two. The hollow cylinder and the circular plate rotate together. Because the circular plate squeezes the front and back sides of the transformer body at this time, the transformer body rotates, and the side contacting the first wiping plate keeps changing. The rotation interference of the transformer body is avoided by the elasticity of the spring telescopic rod, and the side of the transformer body is wiped and cleaned.

[0023] 3. The present invention pushes the push rod to move by the second electric push rod, pushes out the wiping sponge and the identification block and inserts them into the threading hole. At this time, the circular plate is not in compression contact with the transformer body. The rotation of the hollow cylinder can drive the wiping sponge to clean the inside of the threading hole, and the push rod continues to push. After the two wiping sponges are squeezed, the identification block can move along the inside of the threading hole to detect defects inside the threading hole.

[0024] 4. In the present invention, when the transformer body enters the inspection station, the motor drives the screw to rotate, and the push rod cooperates with the screw to slide along the second slide groove until one end of the push rod contacts the convex plate and pushes the clamping frame away from the transformer body. At this time, the clamping block is extended by the first electric push rod to clamp the two sides of the transformer body. The electric telescopic plate is extended to move the transformer body out of the clamping assembly and enter the inspection station. The built-in identification module of the clamping block can perform defect detection on its side when the clamping block is away from the side of the transformer body.

[0025] 5. Compared with the prior art, the present invention continuously transports the mutual inductor by a conveying platform and a clamping assembly. When entering the inspection station, the mutual inductor is lifted by the clamping block of the inspection assembly and first enters the cleaning area. The first wiping plate, the second wiping plate and the wiping sponge wipe the outer shell, the side and the inside of the threading hole of the mutual inductor to clean dust and dirt. The second wiping plate and the identification panel are replaced by the connecting plate to inspect the front and back of the mutual inductor's outer shell. The built-in identification module of the clamping block inspects the side of the mutual inductor, and the identification block inspects the inside of the threading hole of the mutual inductor. For mutual inductors that require multiple positions, the detection efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic flow chart of a method for visually detecting three-dimensional defects of a current transformer according to the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of a three-dimensional defect visualization detection system for current transformers according to the present invention;

[0028] Figure 3 This is a schematic structural diagram of a clamping component of a current transformer three-dimensional defect visualization detection system according to the present invention;

[0029] Figure 4 This is a schematic diagram of the top structure of a side frame of a current transformer three-dimensional defect visualization detection system according to the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of a detection component of a current transformer three-dimensional defect visualization detection system according to the present invention;

[0031] Figure 6 This is a schematic diagram of the connection between the hollow plate and the vertical plate of a current transformer three-dimensional defect visualization detection system of the present invention;

[0032] Figure 7 This is a schematic diagram of the bottom structure of a top box of a current transformer three-dimensional defect visualization detection system according to the present invention;

[0033] Figure 8 This is a schematic diagram of the connection between the second gear and the gear frame of a current transformer three-dimensional defect visualization detection system of the present invention;

[0034] Figure 9 This is a schematic diagram of the bottom structure of a connection plate of a current transformer three-dimensional defect visualization detection system according to the present invention;

[0035] Figure 10 This is a schematic diagram of the internal structure of a circular plate of a current transformer three-dimensional defect visualization detection system according to the present invention.

[0036] In the figure: 1. Side frame; 11. Conveyor platform; 2. Clamping assembly; 21. Bottom plate; 22. First slide; 23. Clamping frame; 24. First spring; 25. Protruding plate; 3. Transformer body; 31. Threading hole; 4. Top box; 5. Detection assembly; 51. Bidirectional electric push rod; 52. Vertical plate; 53. Second slide; 54. Screw; 55. Electric telescopic plate; 56. Push rod; 57. Connecting seat; 58. First electric push rod; 59. Clamping block; 510. Hollow cylinder; 511. Second electric push rod; 512. Drive motor ; 513, first gear; 514, gear ring; 515, convex strip; 516, hollow plate; 517, first connecting rod; 518, second connecting rod; 519, circular plate; 520, third slide; 521, second spring; 522, slide plate; 523, connecting plate; 524, spring telescopic rod; 525, first wiping plate; 526, second gear; 527, gear frame; 528, identification panel; 529, second wiping plate; 530, fourth slide; 531, wiping sponge; 532, identification block; 533, push rod. DETAILED DESCRIPTION

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

[0038] See also Figures 1 to 10 , the present invention provides a technical solution:

[0039] A method for visually detecting three-dimensional defects of a current transformer, the method comprising the following steps:

[0040] (1) The bottom of the transformer body is clamped by two clamping frames through the elastic force of the first spring, and is continuously transported and tested as the conveyor belt moves;

[0041] (2) When the transformer body enters the detection station, the motor drives the screw to rotate, and the push rod cooperates with the screw to slide along the second slide groove until one end of the push rod contacts the convex plate and pushes the clamping frame away from the transformer body. At this time, the clamping block is extended by the first electric push rod to clamp the two sides of the transformer body. The electric telescopic plate is extended to move the transformer body out of the clamping assembly and enter the detection station;

[0042] (3) The top of the transformer body is in squeeze contact with the first wiping plate, and the front and back sides are in sliding contact with the second wiping plate. After the clamping block is retracted, the driving motor drives the first gear to rotate and engage with the gear ring, and the hollow cylinder and the circular plate rotate together. Because the circular plate squeezes the front and back sides of the transformer body at this time, the transformer body rotates, and the side contacting the first wiping plate keeps changing, wiping and cleaning the side of the transformer body;

[0043] (4) The clamping block continues to clamp the two sides of the transformer body, and the second electric push rod pushes the push rod to move, pushes out the wiping sponge and the identification block and inserts them into the threading hole. The rotation of the hollow cylinder can drive the wiping sponge to clean the inside of the threading hole. After the two wiping sponges are squeezed, the identification block can move along the inside of the threading hole to detect defects inside the threading hole;

[0044] (5) The motor built into the connecting plate drives the second gear to rotate and engage with the two tooth frames, so that the tooth frames slide along the inside of the fourth slide groove. The second wiping plate and the identification panel move with their respective tooth frames and replace their positions. When the circular plate leaves the front and back sides of the transformer body, the connecting plate will return to the front and back sides of the transformer body again. At this time, the identification panel is facing the transformer body, and defects on the front and back sides of the transformer body are detected through the identification panel.

[0045] A three-dimensional defect visualization detection system for a current transformer includes a conveyor platform 11, side frames 1 are installed on both sides of the conveyor platform 11, and clamping components 2 are fixed at equal distances on the belt surface of the conveyor platform 11, the internal clamping of the clamping component 2 holds a transformer body 3, and a threading hole 31 is opened on the middle surface of the transformer body 3, the clamping component 2 includes a bottom plate 21, the bottom plate 21 is fixed on the belt surface of the conveyor platform 11, two clamping frames 23 are slidably installed on the top of the bottom plate 21, and the clamping frames 23 are clamped on both sides of the bottom of the transformer body 3, a top box 4 is fixed on the top of the side frame 1, and a detection component 5 is provided at the bottom of the top box 4, the detection component 5 includes a first wiping plate 525, a first wiping plate 525 is provided at the bottom of the top box 4 facing the upper end of the transformer body 3, and connecting plates 523 are provided on both sides of the first wiping plate 525, a second wiping plate 529 is installed at the bottom of the connecting plate 523, and the second wiping plate 529 An identification panel 528 is provided on the back side, and hollow plates 516 are fixed on both sides of the bottom of the top box 4, and a hollow cylinder 510 is slidably inserted at the bottom of the hollow plate 516 corresponding to the position of the threading hole 31. A circular plate 519 is provided at the front end of the hollow cylinder 510, and an identification block 532 is provided inside the circular plate 519, and a wiping sponge 531 is fixed to the outer end of the identification block 532. When using the device, the transformer body 3 is placed inside the clamping component 2, and is transported alternately into the detection station by the conveyor platform 11. The transformer body 3 is taken out from the clamping component 2 through the detection component 5, and the front and back sides, sides and the inside of the threading hole 31 are wiped and cleaned first, and the front and back sides, sides and the inside of the threading hole 31 of the transformer body 3 are detected for defects through the identification panel 528, the identification block 532 and the identification module. The defect detection method uses a three-dimensional laser scanner to collect point cloud data on the surface of the object, and combines structured light or multi-spectral imaging technology to analyze deformation or material abnormalities.

[0046] In this embodiment, the clamping assembly 2 also includes a first slide groove 22. The first slide grooves 22 are opened on both sides of the bottom plate 21, and the bottoms of the two sides of the clamping frame 23 slide along the inside of the first slide groove 22. A first spring 24 is fixed between the first slide groove 22 and the bottom of the clamping frame 23. A convex plate 25 is fixed on the outer side of the two clamping frames 23. The positions of the two convex plates 25 are opposite. The bottom of the transformer body 3 is clamped by the two clamping frames 23 through the elastic force of the first spring 24, and continuous transportation and detection are performed as the belt of the conveyor platform 11 moves.

[0047] In this embodiment, the detection component 5 also includes a second slide groove 53. The second slide groove 53 is opened on the surface of the side frame 1, and a screw rod 54 is slidably connected inside the second slide groove 53. A push rod 56 is threadedly sleeved on the surface of the screw rod 54. The push rod 56 is in squeeze contact with the convex plate 25 on the corresponding side. An electric telescopic plate 55 is fixed to the top of the push rod 56, and a connecting seat 57 is fixed to the extended end of the electric telescopic plate 55. A first electric push rod 58 is fixed to the outside of the connecting seat 57. A clamping block 59 is fixed to the extended end of the first electric push rod 58. The clamping block 59 is in squeeze contact with the side of the transformer body 3. An identification module is provided on the surface of the clamping block 59. When the transformer body 3 enters the detection station, the motor drives the screw rod 54 to rotate, and the push rod 56 cooperates with the screw rod 54 to slide along the second slide groove 53 until one end of the push rod 56 contacts the convex plate 25 and pushes the clamping frame 23 away from the transformer body 3. At this time, the clamping block 59 is extended by the first electric push rod 58 to clamp the two sides of the transformer body 3. The electric telescopic plate 55 is extended to move the transformer body 3 out of the clamping assembly 2 and enter the detection station. The built-in identification module of the clamping block 59 can perform defect detection on its side when the clamping block 59 is away from the side of the transformer body 3.

[0048] In this embodiment, a bidirectional electric push rod 51 is fixed inside the top box 4, and a vertical plate 52 is fixed to the extended end of the bidirectional electric push rod 51. The tail end of the hollow cylinder 510 is rotatably mounted on the bottom of the vertical plate 52, and a second electric push rod 511 is rotatably mounted on the back of the vertical plate 52. The extended end of the second electric push rod 511 penetrates into the interior of the hollow cylinder 510. A push rod 533 is fixed inside the hollow cylinder 510. Both ends of the push rod 533 are fixedly connected to the identification block 532 and the extended end of the second electric push rod 511. The hollow plate 516 is located on the outer ring of the hollow cylinder 510 and is rotatably mounted with a gear ring 514. Raised strips 515 are symmetrically fixed on the surface of the hollow cylinder 510, and the gear ring 514 is slidably engaged with the raised strips 515. The hollow plate 516 is located at the bottom of the gear ring 514 and is rotatably installed with a first gear 513, and the first gear 513 is meshed with the gear ring 514. The hollow plate 516 is located on the outside of the first gear 513 and is fixed with a drive motor 512, and the output end of the drive motor 512 is fixedly connected to the first gear 513. The vertical plate 52 is parallel to the surface of the connecting plate 523 and is rotatably installed with a first connecting rod 517, and the first connecting rod 517 passes through the notch of the hollow plate 516 and is rotatably installed with a second connecting rod 518. The other end of the second connecting rod 518 is rotatably connected to the connecting plate 523 through a rotating shaft. A third sliding groove 520 is provided at the bottom of the top box 4 corresponding to the connecting plate 523, and a slide plate 522 is slidably connected inside the third sliding groove 520. The top of the connecting plate 523 is fixedly connected to the slide plate 522, and a second spring 521 is fixed between the third slide groove 520 and the slide plate 522. The top box 4 is equidistantly fixed with a spring telescopic rod 524 between the two third slide grooves 520, and the extended end of the spring telescopic rod 524 is fixedly connected to the first wiping plate 525. After the mutual inductor body 3 is clamped by the clamping block 59 and the electric telescopic plate 55 is raised, the top of the mutual inductor body 3 is squeezed and contacted with the first wiping plate 525, and the front and back sides are in sliding contact with the second wiping plate 529. Then the bidirectional electric push rod 51 drives the vertical plate 52 and the hollow cylinder 510 to pass through the hollow plate 516 and move toward the mutual inductor body 3, and the first connecting rod 517 and the second connecting rod 518 pass through the notch of the hollow plate 516 to push the connection The plate 523 and the second wiping plate 529 slide along the third slide groove 520 until the circular plate 519 is squeezed and contacted with the front and back sides of the transformer body 3. After the clamping block 59 is retracted, the driving motor 512 drives the first gear 513 to rotate and engage with the gear ring 514. Through the convex strips 515 on the outer surface of the hollow cylinder 510, the hollow cylinder 510 can slide along the inner ring of the gear ring 514 and maintain the clamping relationship between the two. The hollow cylinder 510 and the circular plate 519 rotate together. Because the circular plate 519 squeezes the front and back sides of the transformer body 3 at this time, the transformer body 3 rotates, and the side contacting the first wiping plate 525 keeps changing. The elasticity of the spring telescopic rod 524 avoids the rotation interference of the transformer body 3, and the side of the transformer body 3 is wiped and cleaned.Then, the clamping block 59 continues to clamp the two sides of the transformer body 3, and the second electric push rod 511 pushes the push rod 533 to move, pushing out the wiping sponge 531 and the identification block 532 and inserting them into the threading hole 31. At this time, the circular plate 519 is no longer in contact with the transformer body 3. The rotation of the hollow cylinder 510 can drive the wiping sponge 531 to clean the inside of the threading hole 31. The push rod 533 continues to push. After the two wiping sponges 531 are squeezed, the identification block 532 can move along the inside of the threading hole 31 to detect defects inside the threading hole 31.

[0049] In this embodiment, fourth sliding grooves 530 are provided on both sides of the bottom of the connecting plate 523. The top of the identification panel 528 and the second wiping plate 529 are fixed with tooth frames 527 at the positions of the fourth sliding grooves 530 on both sides of the connecting plate 523, and the top of the tooth frame 527 slides inside the fourth sliding grooves 530. A second gear 526 is rotatably installed at the bottom of one end of the connecting plate 523, and the second gear 526 is meshed with the rack inside the tooth frame 527. The connecting plate 523 has a built-in motor that drives the second gear 526 to rotate. The connecting plate 523 is connected to the first connecting rod 517 and the second connecting rod 517 by the second connecting rod 517. After the push of 18 leaves the front and back sides of the transformer body 3, the second gear 526 is driven by the motor built into the connecting plate 523 to rotate and engage with the two tooth frames 527, so that the tooth frames 527 slide along the inside of the fourth slide groove 530, and the second wiping plate 529 and the identification panel 528 move with their respective tooth frames 527 and replace their positions. When the circular plate 519 leaves the front and back sides of the transformer body 3, the connecting plate 523 will return to the front and back sides of the transformer body 3 again, and at this time the identification panel 528 is facing the transformer body 3, and the defects on the front and back sides of the transformer body 3 are detected through the identification panel 528.

[0050] When using the device, the transformer body 3 is placed inside the clamping assembly 2 and transported alternately by the conveyor platform 11 into the detection station. When the transformer body 3 enters the detection station, the motor drives the screw rod 54 to rotate, and the push rod 56 cooperates with the screw rod 54 to slide along the second slide groove 53 until one end of the push rod 56 contacts the convex plate 25 and pushes the clamping frame 23 away from the transformer body 3. At this time, the clamping block 59 is extended by the first electric push rod 58 to clamp the two sides of the transformer body 3. The electric telescopic plate 55 is extended to move the transformer body 3 out of the clamping assembly 2 and enter the detection station. The built-in recognition module of the clamping block 59 can detect defects on its side when the clamping block 59 is away from the side of the transformer body 3. The transformer body 3 is clamped by the clamping block 59 and the electric push rod 58. After the movable telescopic plate 55 is raised, the top is pressed and contacted with the first wiping plate 525, and the front and back sides are in sliding contact with the second wiping plate 529. Then the bidirectional electric push rod 51 drives the vertical plate 52 and the hollow cylinder 510 to pass through the hollow plate 516 and move toward the transformer body 3. The first connecting rod 517 and the second connecting rod 518 pass through the gap of the hollow plate 516, pushing the connecting plate 523 and the second wiping plate 529 to slide along the third slide groove 520 until the circular plate 519 is pressed and contacted with the front and back sides of the transformer body 3. After the clamping block 59 is retracted, the driving motor 512 drives the first gear 513 to rotate and mesh with the gear ring 514. Through the convex strips 515 on the outer surface of the hollow cylinder 510, the hollow cylinder 510 can slide along the inner ring of the gear ring 514 and maintain the two The clamping relationship between the hollow cylinder 510 and the circular plate 519 is that the hollow cylinder 510 and the circular plate 519 rotate together. Because the circular plate 519 squeezes the front and back sides of the transformer body 3 at this time, the transformer body 3 rotates, and the side in contact with the first wiping plate 525 keeps changing. The elasticity of the spring telescopic rod 524 avoids the rotation interference of the transformer body 3, and the side of the transformer body 3 is wiped and cleaned. Then the clamping block 59 continues to clamp the two sides of the transformer body 3, and the second electric push rod 511 pushes the push rod 533 to move, and the wiping sponge 531 and the identification block 532 are pushed out and inserted into the threading hole 31. At this time, the circular plate 519 is not in contact with the transformer body 3, and the rotation of the hollow cylinder 510 can drive the wiping sponge 531 to clean the inside of the threading hole 31, and the push rod 53 3 continues to push, and after the two wiping sponges 531 are squeezed, the identification block 532 can move along the inside of the threading hole 31 to detect defects inside the threading hole 31. After the connecting plate 523 is pushed away from the front and back sides of the transformer body 3 by the first connecting rod 517 and the second connecting rod 518, the second gear 526 is driven by the motor built into the connecting plate 523 to rotate and engage with the two tooth frames 527, so that the tooth frames 527 slide along the inside of the fourth slide groove 530, and the second wiping plate 529 and the identification panel 528 move with their respective tooth frames 527 and exchange positions. When the circular plate 519 leaves the front and back sides of the transformer body 3, the connecting plate 523 will return to the front and back sides of the transformer body 3 again, and at this time, the identification panel 528 is facing the transformer body 3.The defects on the front and back of the transformer body 3 are detected by the identification panel 528.

[0051] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0052] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A three-dimensional defect visualization detection system for a current transformer, comprising a conveyor platform (11), characterized in that: Side frames (1) are installed on both sides of the conveyor platform (11), and clamping components (2) are fixed at equal intervals on the belt surface of the conveyor platform (11), the internal clamping of the clamping component (2) holds the mutual inductor body (3), and the middle surface of the mutual inductor body (3) is provided with a threading hole (31), the clamping component (2) includes a bottom plate (21), the bottom plate (21) is fixed on the belt surface of the conveyor platform (11), two clamping frames (23) are slidably installed on the top of the bottom plate (21), and the clamping frames (23) are clamped on both sides of the bottom of the mutual inductor body (3), a top box (4) is fixed on the top of the side frame (1), and a detection component (5) is provided at the bottom of the top box (4), and the detection component (5) includes a first wiping plate (525) A first wiping plate (525) is provided at the bottom of the top box (4) facing the upper end of the transformer body (3), and connecting plates (523) are provided on both sides of the first wiping plate (525). A second wiping plate (529) is installed at the bottom of the connecting plate (523), and an identification panel (528) is provided on the back of the second wiping plate (529). Hollow plates (516) are fixed on both sides of the bottom of the top box (4), and a hollow cylinder (510) is slidably inserted at the position of the bottom of the hollow plate (516) corresponding to the threading hole (31). A circular plate (519) is provided at the front end of the hollow cylinder (510), an identification block (532) is provided inside the circular plate (519), and a wiping sponge (531) is fixed to the outer end of the identification block (532).

2. A current transformer three-dimensional defect visualization detection system according to claim 1, characterized in that: The clamping assembly (2) further comprises a first slide groove (22), the first slide grooves (22) are provided on both sides of the base plate (21), and the bottoms of both sides of the clamping frame (23) slide along the inside of the first slide groove (22), a first spring (24) is fixed between the first slide groove (22) and the bottom of the clamping frame (23), and convex plates (25) are fixed on the outer sides of the two clamping frames (23), and the positions of the two convex plates (25) are opposite.

3. The current transformer three-dimensional defect visualization detection system according to claim 2, characterized in that: The detection assembly (5) further comprises a second slide groove (53), the second slide groove (53) is provided on the surface of the side frame (1), and a screw rod (54) is slidably connected inside the second slide groove (53), a push rod (56) is threadedly sleeved on the surface of the screw rod (54), and the push rod (56) is in extrusion contact with the convex plate (25) on the corresponding side.

4. The current transformer three-dimensional defect visualization detection system according to claim 3, characterized in that: An electric telescopic plate (55) is fixed to the top of the push rod (56), and a connecting seat (57) is fixed to the extended end of the electric telescopic plate (55), and a first electric push rod (58) is fixed to the outside of the connecting seat (57), and a clamping block (59) is fixed to the extended end of the first electric push rod (58), and the clamping block (59) is in compression contact with the side of the transformer body (3), and an identification module is provided on the surface of the clamping block (59).

5. The three-dimensional defect visualization detection system for current transformers according to claim 4, characterized in that: A bidirectional electric push rod (51) is fixed inside the top box (4), and a vertical plate (52) is fixed to the extended end of the bidirectional electric push rod (51), the tail end of the hollow cylinder (510) is rotatably mounted on the bottom of the vertical plate (52), and a second electric push rod (511) is rotatably mounted on the back of the vertical plate (52), the extended end of the second electric push rod (511) penetrates into the interior of the hollow cylinder (510), and a push rod (533) is fixed inside the hollow cylinder (510), and both ends of the push rod (533) are fixedly connected to the identification block (532) and the extended end of the second electric push rod (511).

6. The three-dimensional defect visualization detection system for current transformers according to claim 5, characterized in that: The hollow plate (516) is located on the outer ring of the hollow cylinder (510) and is rotatably mounted with a gear ring (514). Raised strips (515) are symmetrically fixed on the surface of the hollow cylinder (510), and the gear ring (514) is slidably engaged with the raised strips (515). The hollow plate (516) is located on the bottom of the gear ring (514) and is rotatably mounted with a first gear (513). The first gear (513) is meshedly connected with the gear ring (514). A driving motor (512) is fixed on the outer side of the hollow plate (516) and the output end of the driving motor (512) is fixedly connected to the first gear (513).

7. The current transformer three-dimensional defect visualization detection system according to claim 6, characterized in that: A first connecting rod (517) is rotatably mounted on the surface of the vertical plate (52) parallel to the connecting plate (523), and a second connecting rod (518) is rotatably mounted on the first connecting rod (517) through the notch of the hollow plate (516), and the other end of the second connecting rod (518) is rotatably connected to the connecting plate (523) via a rotating shaft.

8. The three-dimensional defect visualization detection system for current transformers according to claim 7, characterized in that: A third chute (520) is provided at the bottom of the top box (4) at a position corresponding to the connecting plate (523); a slide plate (522) is slidably connected inside the third chute (520); the top of the connecting plate (523) is fixedly connected to the slide plate (522); a second spring (521) is fixed between the third chute (520) and the slide plate (522); a spring telescopic rod (524) is equidistantly fixed to the top box (4) between the two third chute (520), and the extended end of the spring telescopic rod (524) is fixedly connected to the first wiping plate (525).

9. The current transformer three-dimensional defect visualization detection system according to claim 8, characterized in that: The connecting plate (523) is provided with fourth slide grooves (530) on both sides of the bottom thereof, and the tops of the identification panel (528) and the second wiping plate (529) are fixed with tooth frames (527) at positions corresponding to the fourth slide grooves (530) on both sides of the connecting plate (523), and the top of the tooth frame (527) slides inside the fourth slide grooves (530), and a second gear (526) is rotatably installed at the bottom of one end of the connecting plate (523), and the second gear (526) is meshed with the rack inside the gear frame (527), and the connecting plate (523) is provided with a built-in motor for driving the second gear (526) to rotate.

10. A method for visually detecting three-dimensional defects of a current transformer implemented by the system according to claim 1, characterized in that: The detection method comprises the following steps: (1) The bottom of the transformer body is clamped by two clamping frames through the elastic force of the first spring, and is continuously transported and tested as the conveyor belt moves; (2) When the transformer body enters the detection station, the motor drives the screw to rotate, and the push rod cooperates with the screw to slide along the second slide groove until one end of the push rod contacts the convex plate and pushes the clamping frame away from the transformer body. At this time, the clamping block is extended by the first electric push rod to clamp the two sides of the transformer body. The electric telescopic plate is extended to move the transformer body out of the clamping assembly and enter the detection station; (3) The top of the transformer body is in squeeze contact with the first wiping plate, and the front and back sides are in sliding contact with the second wiping plate. After the clamping block is retracted, the driving motor drives the first gear to rotate and engage with the gear ring, and the hollow cylinder and the circular plate rotate together. Because the circular plate squeezes the front and back sides of the transformer body at this time, the transformer body rotates, and the side contacting the first wiping plate keeps changing, wiping and cleaning the side of the transformer body; (4) The clamping block continues to clamp the two sides of the transformer body, and the second electric push rod pushes the push rod to move, pushes out the wiping sponge and the identification block and inserts them into the threading hole. The rotation of the hollow cylinder can drive the wiping sponge to clean the inside of the threading hole. After the two wiping sponges are squeezed, the identification block can move along the inside of the threading hole to detect defects inside the threading hole; (5) The motor built into the connecting plate drives the second gear to rotate and engage with the two tooth frames, so that the tooth frames slide along the inside of the fourth slide groove. The second wiping plate and the identification panel move with their respective tooth frames and replace their positions. When the circular plate leaves the front and back sides of the transformer body, the connecting plate will return to the front and back sides of the transformer body again. At this time, the identification panel is facing the transformer body, and defects on the front and back sides of the transformer body are detected through the identification panel.

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