A vertical rotation detection device and method

Abstract

The present application discloses a vertical rotation detection device and method, which relates to the field of shielding detection, and includes a rotating table, including a horizontal platform that can be moved and rotated horizontally; a detection stand, which is composed of a plurality of channel steels welded together, including a portal frame and two channel steel vertical rails located inside the portal frame; an adjustable lifting frame, which is lifted and slidably arranged between the two channel steel vertical rails, and a protection box and a calibrator are respectively installed at the two ends below the adjustable lifting frame, and the distance between the two is adjustable; a hoist, which is used to lift the adjustable lifting frame; an auxiliary control mechanism, including a first controller and a second controller, the first controller is located outside the shielding room, and the second controller is located inside the shielding room. The present application drives the detector and the radiation source to vertically enter the inside and outside of the inspected workpiece through the adjustable lifting frame, and drives the inspected workpiece to rotate through the rotating table, so as to realize axial and circumferential multi-point detection, and does not need to place the inspected workpiece horizontally, which is more convenient for detecting hollow inspected workpieces.

Description

Technical Field

[0001] The present application relates to the field of shielding detection, and in particular to a vertical rotation detection device and method. Background Art

[0002] With the localization and independence of nuclear power equipment, the domestic manufacturing output of spent fuel transport containers has gradually increased, and domestic manufacturers have become more and more experienced in the key manufacturing processes of spent fuel transport containers. The key process in the manufacturing process of spent fuel transport containers is to ensure the shielding performance of the containers.

[0003] According to the currently published Chinese patent: publication number CN117517352B, the invention name is mobile shielding performance detection device and detection method. It can be known that by using rollers to laterally support the workpiece to be inspected and drive it to rotate, the detectors and radiation sources inside and outside the workpiece to be inspected can be used for detection.

[0004] However, when inspecting small hollow workpieces, it is difficult to perform full surface inspection in a horizontal state due to the limitation of the equipment structure size. The equipment itself is small in size and heavy in weight, and it is difficult to inspect it with other conventional auxiliary equipment. The main manifestation is that it is difficult to accurately move the product and the inspection equipment, and it is difficult to ensure that the internal and external inspection positions are concentric and the inspection equipment is close to the surface to be inspected. Summary of the invention

[0005] In order to solve the problem that it is difficult to inspect a hollow workpiece in a horizontal state, the present application provides a vertical rotation inspection device and method.

[0006] The present application provides a vertical rotation detection device and method using the following technical solutions:

[0007] A vertical rotating detection device comprises a rotating table, which is arranged on the ground and comprises a horizontal platform which can be moved and rotated horizontally and is used to place a workpiece to be inspected; a detection stand, which is arranged on the ground and is composed of a plurality of channel steels welded together, comprising a portal frame and two channel steel vertical rails located on the inner side of the portal frame, wherein the channel steel vertical rails and the portal frame are fixedly connected by a transverse plate; an adjustable lifting frame, which is lifted and slidably arranged between the two channel steel vertical rails, and the adjustable lifting frame is in an N shape, wherein a protection box with a detector arranged inside and a calibrator with a radiation source arranged inside are respectively installed at two ends below the adjustable lifting frame, wherein the side end of the protection box is detachably connected to an outer bonding plate which is bonded to the outer surface of the workpiece to be inspected by bolts, and the side end of the calibrator is detachably connected to an inner bonding plate which is bonded to the inner surface of the workpiece to be inspected by bolts, and the detector The detection platform and the radiation source are located on the same axis, and the distance between the two is adjustable. The adjustable lifting frame is equipped with a first camera and a second camera, and the first camera and the second camera are electrically connected to a display screen; a hoist is arranged at the upper end of the detection platform, and is used to lift the adjustable lifting frame; an auxiliary positioning mechanism includes two grating plates fixed on both sides of the vertical rail of the channel steel, and a pad is inserted in the grating plates, a horizontal push rod is fixed on the vertical rail of the channel steel, and a connecting piece is fixed at the output end of the horizontal push rod, a vertical push rod is fixed on the connecting piece, and the upper end of the vertical push rod is fixed to the pad; an auxiliary control mechanism includes a first controller and a second controller, the first controller is located outside the shielding room and is electrically connected to the horizontal push rod, the vertical push rod, the rotating table and the hoist, and the second controller is located in the shielding room and is electrically connected to the hoist, the rotating table and the adjustable lifting frame.

[0008] By adopting the above technical solution, before conducting the inspection, the operator needs to replace the outer bonding plate and the inner bonding plate according to the inner and outer side dimensions of the inspected workpiece, and adjust the distance between the protection box and the calibrator and the distance that the horizontal platform should move according to the size through the second controller, and then place the inspected workpiece on the horizontal platform, and then move the inspected workpiece to the bottom of the adjustable lifting frame through the rotating table, and then control the lifter to descend, detect several points for calibration, and after calibration, remove the calibrator and the counterweight block, install the guide tube, and reinsert the source tube to ensure that the position of the radiation source remains unchanged. After that, the operator can control the horizontal push rod and the vertical push rod through the first controller outside the shielding room to insert the pad at the bottom of the grid plate, and control the lifter to drive the adjustable lifting frame to descend, so that the protection box is placed On the pad, one position of the inspected workpiece is detected, and then the inspected workpiece is rotated repeatedly for multiple times. After the rotation, multiple circumferential positions at the same height can be detected. After that, the hoist lifts the adjustable lifting frame upward, and the horizontal push rod and the vertical push rod insert the pad at different heights of the grid plate. The adjustable lifting frame is lowered again, and the above detection steps are repeated to detect the detection positions at different heights, thereby realizing axial multi-point detection. The entire detection process can ensure that the outer bonding plate and the inspected workpiece are close to each other, and the detection effect is better. Moreover, there is no need to place the inspected workpiece horizontally, which is suitable for hollow inspected workpieces and has a wider range of applications. There is no need for operators to enter the shielding room to detect and adjust the inspected workpiece, and the operation is safer and more efficient.

[0009] Preferably, the adjustable lifting frame includes two connecting channel steels located on both sides and a connecting plate for fixing the two connecting channel steels, the first camera is fixed on the connecting plate, a side plate is fixed on the inner side of the connecting channel steel channel, and the other edge of the side plate and the connecting channel steel is clamped on one side edge of the channel steel vertical rail to achieve a sliding effect.

[0010] By adopting the above technical solution, the adjustable lifting frame can stably slide on the vertical rail of the channel steel under the action of the side plate, and the first camera can observe the gap between the outer bonding plate and the inspected workpiece, which is convenient for the operator to debug and observe the inspection process.

[0011] Preferably, the adjustable lifting frame also includes a flat plate fixed to the side end of the connecting channel steel, a slide plate is slidably arranged under the flat plate, and a distance-adjusting push rod for controlling the lateral sliding of the slide plate is arranged on the flat plate, the distance-adjusting push rod is electrically connected to the second controller, the second camera is fixed to the lower surface of the slide plate, a vertical plate is detachably connected to the bottom of the slide plate by bolts, the calibrator is fixed under the vertical plate, and a counterweight block is arranged on the side of the connecting channel steel away from the flat plate.

[0012] By adopting the above technical solution, the counterweight block can ensure that the two sides of the adjustable lifting frame are in a relatively balanced state, making the lifting and sliding of the adjustable lifting frame more stable. The distance-adjusting push rod can control the sliding distance of the slide, thereby changing the distance between the protection box and the calibrator. It can detect workpieces of different specifications, expanding the application scope of the device, and the second camera can observe the gap between the inner bonding plate and the inner surface of the workpiece to be inspected, which is convenient for the operator to debug and observe the inspection process.

[0013] Preferably, the rotating table also includes a frame arranged on the ground, a movable threaded rod and a guide rod are rotatably arranged on the inner side of the frame, and a movable block is slidably arranged on the guide rod, the movable block is threadedly connected to the movable threaded rod, a driving motor for driving the movable threaded rod to rotate is arranged in the frame, and the driving motor is electrically connected to the second controller, a rotating plate is rotatably arranged above the movable block, and a rotating motor for driving the rotating plate to rotate is installed below the movable block, the rotating motor is electrically connected to the first controller, an intermediate plate is horizontally slidably arranged above the rotating plate, the horizontal platform is longitudinally slidably arranged above the intermediate plate, and a blocking frame is arranged on the vertical rail of the channel steel; the blocking frame includes a cross bar and two rotating wheels, and the two rotating wheels are symmetrically distributed at both ends of the cross bar.

[0014] By adopting the above technical solution, the driving motor can drive the moving threaded rod to rotate, and then drive the moving block to approach the rotating wheel. In the process of approaching, the inspected workpiece will first contact one of the rotating wheels, and due to the sliding arrangement of the middle plate and the rotating plate, the inspected workpiece will be positioned to the middle position under the action of the two symmetrical rotating wheels, and then the moving block will continue to move a certain distance after the inspected workpiece stops moving. The distance is calculated based on the size of the inspected workpiece. After the movement, the output shaft of the rotating motor is collinear with the axis of the inspected workpiece. After that, the inspected workpiece can be driven to rotate by the rotating motor to achieve circumferential multi-point detection.

[0015] Preferably, the retaining frame also includes a mounting plate fixed on the vertical rail of the channel steel, a first sliding rod is slidably arranged on the mounting plate, and the end of the first sliding rod is fixedly connected to the cross bar, and a first spring is arranged between the cross bar and the mounting plate, two sliding sleeves are arranged on the sliding sleeve of the cross bar, and the sliding sleeve is fixed to the cross bar by a pin, a pressure sensor is fixed on the sliding sleeve, and a bracket is fixed on the pressure sensor, the rotating wheel is rotatably arranged on the bracket, and a positioning assembly for fixing the first sliding rod is provided on the back side of the mounting plate.

[0016] By adopting the above technical scheme, the distance between the two rotating wheels can be adjusted according to the size of the inspected workpiece, which is more convenient to use. The positioning component can fix the position of the first slide bar, and the position of the rotating wheel can be adjusted according to the size of the inspected workpiece, so that after the inspected workpiece is moved to fit with the rotating wheel, it can be synchronously fitted with the outer bonding plate. During debugging, the two rotating wheels can be first fixed at a relatively forward position through the positioning component, and the fixing effect of the positioning component can be released after the two pressure sensors detect that the pressures are consistent, ensuring that the inspected workpiece for debugging is in the middle position, and then the inspected workpiece continues to be moved and the gap between the outer bonding plate and the outer surface of the inspected workpiece is observed through the first camera. When the gap reaches the inspection standard, the first slide bar can be fixed again through the positioning component, which is more convenient for debugging.

[0017] Preferably, the positioning assembly includes two symmetrically distributed fixing plates fixed on the back side of the mounting plate, a bidirectional threaded rod is rotatably arranged between the two fixing plates, and a clamping motor for driving the bidirectional threaded rod to rotate is installed on one of the fixing plates, and the clamping motor is electrically connected to the second controller, and two clamping plates for clamping the first sliding rod are threadedly connected to the bidirectional threaded rod.

[0018] By adopting the above technical solution, the clamping motor can drive the bidirectional threaded rod to rotate, thereby driving the two clamping plates to move closer to the middle to clamp and fix the first slide bar, and can also drive the two clamping plates to separate to both sides to release the fixing effect on the first slide bar.

[0019] Preferably, the mounting plate is also provided with an auxiliary debugging component, which includes a second slide bar slidably arranged on the mounting plate, the second slide bar has the same width as the first slide bar, and the second slide bar is located directly below the first slide bar, shoulders are fixed on both sides of the second slide bar away from the end of the clamping plate, and a second spring is arranged between the shoulder and the mounting plate, and a positioning wheel is rotatably arranged on the end of the second slide bar, and a scale displaying the distance between the positioning wheel and the axis of the rotating motor is arranged on the second slide bar.

[0020] By adopting the above technical solution, during the debugging process, it is necessary to calculate the distance that the moving block needs to move to ensure that the axis of the rotating motor can be collinear with the axis of the inspected workpiece. During debugging, the positioning wheel will be against the outer surface of the inspected workpiece used for debugging. When the inspected workpiece is moved to a suitable position, the second slide bar can be fixed while the first slide bar is fixed. The reading on the second slide bar minus the outer ring radius of the inspected workpiece and the radius of the positioning wheel can be used to calculate the distance that the moving block needs to move, which is convenient for the operator to review the moving distance of the moving block and ensure the reliability of the debugging result.

[0021] Preferably, an iron bar is fixed under the horizontal platform, and a magnetic block that is attracted to the iron bar is arranged above the middle plate, a circular hole is opened in the middle position of the middle plate, a positioning push rod is arranged in the circular hole, a mounting block is arranged at the side end of the positioning push rod, and a supporting tension spring is arranged between the mounting block and the middle plate.

[0022] By adopting the above technical solution, in the initial state, the iron bar and the magnetic block are adsorbed, so that the center of the horizontal platform is closer to the detection bench than the axis of the rotating motor. When the inspected workpiece is placed, the axis of the inspected workpiece is located on the side of the rotating motor close to the detection bench, ensuring that the moving block will continue to move after the inspected workpiece stops, thereby ensuring the normal use of the device. Moreover, when the inspected workpiece first contacts one of the rotating wheels, the inspected workpiece is affected by the iron bar and the magnetic block and will first move to the middle position instead of stopping moving first, thereby ensuring the smooth operation of the device. Moreover, when the rotating motor drives the inspected workpiece to rotate, the positioning push rod can be extended so that the upper and lower ends respectively resist the rotating plate and the horizontal platform, thereby preventing the inspected workpiece from shifting during rotation, thereby further ensuring the smooth operation of the device.

[0023] A vertical rotation detection method, the steps are as follows:

[0024] S1: Replacement of parts: Replace the outer bonding plate and the inner bonding plate according to the size of the outer and inner surfaces of the workpiece to be inspected, so that they can better fit the surface of the workpiece to be inspected; S2: Debugging equipment: Debug the moving distance of the horizontal platform on the rotating table according to the size of the workpiece to be inspected, so that the workpiece to be inspected can be close to the outer bonding plate, and debug the distance between the protection box and the calibrator according to the inner diameter of the workpiece to be inspected, so that the inner bonding plate can be close to the inner surface of the workpiece to be inspected; S3: Loading: Place the workpiece to be inspected on the horizontal platform; S4: Calibration: Insert the source tube into the small hole on the top of the calibrator so that the radiation source is located in the center, detect several points for calibration, and remove the calibrator and the counterweight after the calibration is completed, and then install the guide tube so that the bottom of the guide tube is consistent with the center position of the calibrator, and insert the source tube from the top to the guide tube. Towards the bottom of the tube to ensure that the position of the radiation source remains unchanged; S5: Detect circumferential detection points: insert the pad at the bottom of the grid plate through the horizontal push rod and the vertical push rod, and then place the protective box on the pad through the hoist, so as to detect one position of the inspected workpiece, and then drive the inspected workpiece to rotate a certain angle through the rotating motor, and detect the position of the inspected workpiece at the same height. After repeating this step, multiple circumferential positions at the same height can be detected; S6: Detect axial detection points: after all the positions at the same height are detected, the adjustable lifting frame can be lifted upward by the hoist, and then the pad is inserted in a relatively high position of the grid plate through the horizontal push rod and the vertical push rod, and the above step S5 can be repeated to perform multi-point detection on another height position, and the axial positions at different heights can be detected by repeating this step.

[0025] By adopting the above technical solution, operators can perform inspections outdoors, and can perform inspections when the inspected workpiece is in a vertical state. There is no need to place the inspected workpiece horizontally, which is convenient for inspecting hollow inspected workpieces and has a wide range of applications.

[0026] Preferably, when performing repeated tests on the same product, steps S1, S2 and S4 may not be performed in subsequent tests.

[0027] By adopting the above technical solution, the time for debugging and calibrating the device can be effectively saved and the detection efficiency can be improved.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The height of the protection box, the calibrator and the guide tube is adjusted by using an adjustable lifting frame and a hoist, and the height is positioned by using an auxiliary positioning mechanism, so as to detect multiple axial points of the inspected workpiece. The rotating table can be used to move the inspected workpiece to fit with the outer laminating plate, and drive the inspected workpiece to rotate, so as to realize circumferential multi-point detection. In addition, during the calibration process, the inspected workpiece can fully fit with the inner laminating plate, thereby improving the calibration effect. It is not necessary to place the inspected workpiece horizontally, which is convenient for detecting hollow inspected workpieces and has a wider range of applications.

[0030] 2. With the help of auxiliary control mechanism, the operator can debug the device in the shielded room and conduct inspection outside the shielded room. The remote inspection process is safer and there is no need for the operator to enter the shielded room to adjust the position of the inspected workpiece, so the inspection efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an axonometric diagram of the overall structure of the vertical rotation detection device of this application;

[0032] Figure 2 This is a schematic diagram of the vertical rotation detection device of this application, which mainly reflects the detection bench structure;

[0033] Figure 3 This is a schematic diagram of the structure of one side of the adjustable lifting frame of the vertical rotation detection device of this application;

[0034] Figure 4 This is a schematic diagram of the guide tube structure of the vertical rotation detection device of this application;

[0035] Figure 5 This is a schematic diagram of the structure of the other side of the adjustable lifting frame of the vertical rotation detection device of this application;

[0036] Figure 6 This is a schematic diagram of the structure of the rotating table of the vertical rotating detection device of the present application;

[0037] Figure 7 This is a schematic diagram of the structure of one side of the retaining frame of the vertical rotation detection device of this application;

[0038] Figure 8 This is a schematic diagram of the structure of the other side of the retaining frame of the vertical rotation detection device of this application;

[0039] Fig. 9 This is a schematic diagram of the structure of the middle plate of the vertical rotation detection device of the present application;

[0040] Fig.10 This is a schematic diagram of the vertical rotation detection device of this application which mainly reflects the horizontal platform structure;

[0041] Fig.11 This is a schematic diagram of the positioning push rod structure of the vertical rotation detection device of this application;

[0042] Fig.12 This is a schematic diagram of the structure of the auxiliary control mechanism of the vertical rotation detection device of this application;

[0043] Fig.13 This is a flow chart of the vertical rotation detection method of the present application;

[0044] 1. Rotating table; 11. Horizontal platform; 111. Iron bar; 12. Frame; 13. Moving threaded rod; 14. Guide rod; 15. Moving block; 16. Rotating plate; 17. Rotating motor; 18. Intermediate plate; 181. Magnetic block; 182. Round hole; 183. Positioning push rod; 184. Mounting block; 185. Support tension spring; 19. Stop frame; 191. Cross bar; 192. Rotating wheel; 193. Mounting plate; 194. First slide bar; 195. First spring; 196. Sliding sleeve; 197. Pressure sensor; 198. Positioning assembly; 1981. Fixed plate; 1982. Bidirectional threaded rod; 1983. Clamping motor; 1984. Clamping plate; 199. Auxiliary debugging assembly; 1991. Second slide bar; 1992. Stop shoulder; 1993. Second spring; 1994. Positioning wheel;

[0045] 2. Testing bench; 21. Door frame; 22. Channel steel vertical rail; 23. Horizontal plate;

[0046] 3. Adjustable lifting frame; 31. Connecting channel steel; 32. Connecting plate; 33. Side plate; 34. Flat plate; 35. Slide plate; 36. Adjustable distance push rod; 37. Vertical plate; 38. First camera; 39. Second camera;

[0047] 4. Protective box; 5. External laminating plate; 6. Calibrator; 7. Internal laminating plate; 8. Lifter;

[0048] 9. Auxiliary positioning mechanism; 91. Grid plate; 92. Backing plate; 93. Horizontal push rod; 94. Connecting piece; 95. Vertical push rod;

[0049] 10. Auxiliary control mechanism; 101. First controller; 102. Second controller;

[0050] 20. Display screen; 30. Guide tube. DETAILED DESCRIPTION

[0051] The following is combined with Figure 1 -Attached Fig.13 This application is described in further detail.

[0052] The embodiment of the present application discloses a vertical rotation detection device.

[0053] Reference Figure 1 The vertical rotating detection device includes a rotating table 1, a detection table frame 2, an adjustable lifting frame 3, a hoist 8 and an auxiliary positioning mechanism 9, and a protection box 4 for storing the detector and a calibrator 6 for storing the radioactive source are respectively fixed at both ends of the adjustable lifting frame 3. In actual use, the source tube is inserted into the small hole above the calibrator 6, so that the radioactive source at the end of the source tube is located at the center of the calibrator 6. The rotating table 1 includes a horizontal platform 11 that can be moved and rotated horizontally, which is used to place the workpiece to be inspected and drive the workpiece to be inspected to move below the protection box 4 and the calibrator 6.

[0054] Reference Figure 2 The inspection bench 2 is composed of a plurality of channel steels welded together, including a portal frame 21 and two channel steel vertical rails 22 located on the inner side of the portal frame 21, the channel steel vertical rails 22 and the portal frame 21 are fixedly connected by a horizontal plate 23, and the auxiliary positioning mechanism 9 includes two grid plates 91 fixed on both sides of the channel steel vertical rails 22, the sockets on the grid plates 91 are set corresponding to the inspection height of the inspected workpiece, and a pad 92 is inserted in the grid plates 91, a horizontal push rod 93 is fixed on the channel steel vertical rails 22, a connecting piece 94 is fixed on the output end of the horizontal push rod 93, a vertical push rod 95 is fixed on the connecting piece 94, the upper end of the vertical push rod 95 is fixed to the pad 92, the pad 92 is driven to be pulled out and inserted into the grid plate 91 by the horizontal push rod 93, the height of the pad 92 is adjusted by the vertical push rod 95, and the protective box 4 can be placed by the pad 92 during the inspection, thereby realizing the height positioning.

[0055] refer to Figure 3 , 45, the adjustable lifting frame 3 includes two connecting channel steels 31 located on both sides and a connecting plate 32 for fixing the two connecting channel steels 31, the side ends of the connecting channel steels 31 are fixed with the connecting plate 32, and the cooperation between the connecting plate 32 and the connecting channel steel 31 enables the adjustable lifting frame 3 to stably slide between the two channel steel vertical rails 22, and the side ends of the connecting channel steels 31 are fixed with a flat plate 34, and a counterweight block is arranged on the side of the connecting channel steel 31 away from the flat plate 34 to achieve the balance of the adjustable lifting frame 3 and ensure the stability of the lifting and sliding, a slide plate 35 is slidingly arranged under the flat plate 34, and a distance adjustment push rod 36 for controlling the lateral sliding of the slide plate 35 is arranged on the flat plate 34, and the push rod 36 is used to control the lateral sliding of the slide plate 35. The distance between the protection box 4 and the calibrator 6 can be adjusted, and spare parts of different specifications can be detected. The second camera 39 is fixed on the lower surface of the slide plate 35. The lower part of the slide plate 35 is detachably connected with a vertical plate 37 by bolts. The calibrator 6 is fixed under the vertical plate 37, and the side end of the protection box 4 is fixed with an outer bonding plate 5 by bolts, and the side end of the calibrator 6 is fixed with an inner bonding plate 7 by bolts. The inner bonding plate 7 and the outer bonding plate 5 are respectively bonded to the inner and outer surfaces of the inspected workpiece, and when detecting different inspected workpieces, different types of inner bonding plates 7 and outer bonding plates 5 can be replaced to improve the bonding effect. A better bonding effect will be beneficial to detection and calibration, thereby improving the detection effect.

[0056] The distance adjusting push rod 36 can adjust the distance between the protection box 4 and the calibrator 6. In conjunction with the first camera 38 and the second camera 39, the gap between the inner bonding plate 7, the outer bonding plate 5 and the surface of the inspected workpiece can be observed during the debugging process, making the debugging more convenient. After debugging, there is no need to adjust the position during the inspection process, making the inspection more convenient.

[0057] When adjusting the height of the pad 92, the horizontal push rod 93 extends, driving the pad 92 to move to one side and be pulled out of the hole of the grille plate 91. After the pad 91 is completely pulled out, the vertical push rod 95 extends or shortens to drive the pad 92 to change its height, so that it is aligned with the holes of different heights in the grille plate 91. Then the horizontal push rod 93 contracts again, and the pad 92 is reinserted into the grille plate 91 to achieve height adjustment.

[0058] refer to Figure 3 and 5 It should be noted that the detector, calibrator 6, source tube and radiation source are all existing devices. A hole is provided on the top of the calibrator 6. During calibration, the source tube is inserted from the top hole to ensure that the radiation source is located at the center of the calibrator 6. After measuring several points for calibration, the calibrator 6 and the vertical plate 37 above it can be removed and the right-angle guide tube 30 can be installed on the slide 35. Then the source tube is inserted from the top to the bottom of the guide tube 30 to ensure that the radiation source is still in the original position. Then the detection can be carried out. The detection process does not require the use of the calibrator 6, the structure is lighter, and the cost is lower.

[0059] refer to Figure 6 , 7 , 9 and 10, the rotating table 1 also includes a frame 12 arranged on the ground, the frame 12 is located on the inner side of the detection platform 2, a movable threaded rod 13 and a guide rod 14 are rotatably arranged on the inner side of the frame 12, and a movable block 15 is slidably arranged on the guide rod 14, the movable block 15 is threadedly connected with the movable threaded rod 13, a driving motor is arranged in the frame 12, the threaded rod 13 and the driving motor can drive the movable block 15 to move longitudinally and drive the inspected workpiece to move in shape detection position, a rotating plate 16 is rotatably arranged above the movable block 15, and a rotating motor 17 for driving the rotating plate 16 to rotate is installed below the movable block 15, so as to drive the rotating plate 5 to rotate and then drive the inspected workpiece to rotate during the detection process, an intermediate plate 18 is horizontally slidably arranged above the rotating plate 16, the horizontal platform 11 is longitudinally slidably arranged above the intermediate plate 18, a retaining frame 19 is arranged on the channel steel vertical rail 22, the retaining frame 19 includes a cross bar 191 and two rotating wheels 192, and the two rotating wheels 192 are symmetrically distributed at both ends of the cross bar 191.

[0060] Since the middle plate 18 is slidably connected to the upper horizontal platform 11 and the lower rotating plate 16, and the sliding directions are perpendicular to each other, the horizontal platform 11 can be translated arbitrarily. However, an iron bar 111 is fixed below the horizontal platform 11, and a magnetic block 181 that is attracted to the iron bar 111 is provided above the middle plate 18. Due to the effect of the magnetic force, the horizontal platform 11 can only move laterally first. During inspection, when the inspected workpiece moves to the inspection position, it is difficult for the staff to ensure that the axis of the inspected workpiece coincides with the axis of the horizontal platform 11 when placing the inspected workpiece. When the position of the inspected workpiece deviates, the inspected workpiece will first contact one of the rotating wheels 192. Since the horizontal platform 11 and the middle plate 18 can slide laterally, the inspected workpiece will be positioned in the middle position under the action of the two symmetrical rotating wheels 192, and then the moving block 15 will continue to move a certain distance after the inspected workpiece stops moving. , that is, the horizontal platform 11 has longitudinally slid relative to the rotating plate 16. At this time, the inspected workpiece is blocked by the two rotating wheels 192 and cannot continue to move with the moving block 15. Due to the friction between the horizontal platform 11 and the inspected workpiece, the horizontal platform 11 will stop moving with the inspected workpiece. Therefore, the iron bar 111 and the magnetic block 181 will break free under the action of external force and will not hinder the movement of the moving block 15. Moreover, in the early movement process of the moving block 15, the iron bar 111 and the magnetic block 181 are attracted to each other to ensure that the horizontal platform 11 is more stable when moving with the moving block 15. The moving distance of the moving block 15 is calculated according to the size of the inspected workpiece. After the movement, the output shaft of the rotating motor 17 is collinear with the axis of the inspected workpiece. After that, the inspected workpiece can be driven to rotate by the rotating motor 17 to realize circumferential multi-point detection. Circumferential detection can be realized at different heights in conjunction with the auxiliary positioning 9, thereby realizing circumferential and axial multi-point detection.

[0061] refer to Figure 7 and 8Specifically, a mounting plate 193 is fixed on the channel steel vertical rail 22, a first slide bar 194 is slidably arranged on the mounting plate 193, a cross bar 191 is fixed on the first slide bar 194, a first spring 195 and a thin wire rod are arranged between the cross bar 191 and the mounting plate 193, two sliding sleeves 196 are provided on the sliding sleeve of the cross bar 191, and the sliding sleeve 196 is fixed on the cross bar 191 by a latch, and a plurality of jacks are arranged on the cross bar 191, and the position of the sliding sleeve 196 can be adjusted, a pressure sensor 197 is fixed on the sliding sleeve 196, and a bracket is fixed on the pressure sensor 197, when the two pressure sensors are in contact with each other, the pressure sensor 197 is fixed to the pressure sensor 197, and the pressure sensor 197 is fixed to the pressure sensor 197. When the pressure of the sensor 197 is consistent, it can be determined that the inspected workpiece has moved to the middle in the lateral direction. The rotating wheel 192 is rotatably set on the bracket. The back of the mounting plate 193 is provided with a positioning assembly 198 for fixing the first slide bar 194. The positioning assembly 198 includes two symmetrically distributed fixed plates 1981 fixed on the back of the mounting plate 193. A bidirectional threaded rod 1982 is rotatably set between the two fixed plates 1981, and a clamping motor 1983 for driving the bidirectional threaded rod 1982 to rotate is installed on one of the fixed plates 1981. Two clamping plates 1984 are threadedly connected to the bidirectional threaded rod 1982.

[0062] The distance between the two rotating wheels 192 can be adjusted according to the size of the workpiece to be inspected, making the workpiece more stable, and the first slide bar 194 can be fixed in an appropriate position by two clamping plates 1984, so that when the workpiece to be inspected is against the two rotating wheels 192, its outer surface fits exactly in the groove of the outer bonding plate 5.

[0063] Moreover, during the debugging process, the two rotating wheels 192 are first fixed in a relatively forward position by two clamps 1984. After the two pressure sensors 197 detect that the pressure is consistent, the inspected workpiece is located in the middle position in the lateral direction, and then the two clamps 1984 are separated to ensure that the inspected workpiece for debugging is in the middle position. Then the inspected workpiece continues to be moved. At this time, the inspected workpiece will resist the two rotating wheels 912, pushing the first slide bar 194 to slide backward, and observe the gap between the outer bonding plate 5 and the outer surface of the inspected workpiece through the first camera 38. When the gap reaches the inspection standard, the first slide bar 194 can be fixed again by the clamp 1984, which is more convenient for debugging.

[0064] refer to Figure 7 and 8Specifically, the auxiliary debugging component 199 includes a second slide bar 1991 slidably set on the mounting plate 193. The second slide bar 1991 has the same width as the first slide bar 194, and the second slide bar 1991 is located directly below the first slide bar 194, and can be clamped and fixed by the clamping plate 1984 at the same time. The second slide bar 1991 is fixed with shoulders 1992 on both sides of one end away from the clamping plate 1984, and a second spring 1993 is arranged between the shoulder 1992 and the mounting plate 193, and a positioning wheel 1994 is rotatably arranged at the end of the second slide bar 1991, and a scale is arranged on the second slide bar 1991 to display the axial distance between the positioning wheel 1994 and the initial position of the rotating motor 17.

[0065] During the debugging process, it is necessary to calculate the distance that the moving block 15 needs to move to ensure that the axis of the rotating motor 17 can be colinear with the axis of the inspected workpiece. During debugging, the positioning wheel 1994 will be against the outer surface of the inspected workpiece used for debugging. During the debugging process, when the inspected workpiece pushes the two rotating wheels 192 and the first slide bar 194 to move, it will also push the positioning wheel 1994 and the second slide bar 1991 to move. When the inspected workpiece moves to a suitable position, the second slide bar 1991 can be fixed while fixing the first slide bar 194. Whenever the inspected workpiece moves to collide with the two rotating wheels 192, it will also collide with the positioning wheel 1994 at the same time. The reading on the second slide bar 1991 minus the outer ring radius of the inspected workpiece and the radius of the positioning wheel 1994 can calculate the distance that the moving block 15 needs to move, which is convenient for the operator to review the moving distance of the moving block 15 and ensure the reliability of the debugging result.

[0066] refer to Fig.11 A circular hole 182 is provided in the middle position of the middle plate 18, a positioning push rod 183 is provided in the circular hole 182, anti-slip pads are provided at the upper and lower ends of the positioning push rod 183, a mounting block 184 is provided at the side end of the positioning push rod 183, and a supporting tension spring 185 for supporting the positioning push rod 183 is provided between the mounting block 184 and the middle plate 18, so that the upper and lower ends of the positioning push rod 183 are in a suspended state.

[0067] When the positioning push rod 183 is extended, its upper and lower ends respectively abut against the rotating plate 16 and the horizontal platform 11, thereby locking the horizontal platform 11, the middle plate 18 and the rotating plate 16 to prevent the inspected workpiece from shifting during rotation, thereby further ensuring the smooth operation of the device.

[0068] refer to Fig.12 Specifically, the auxiliary control mechanism 10 includes a first controller 101 and a second controller 102. The first controller 101 is located outside the shielding room and is electrically connected to the horizontal push rod 93, the vertical push rod 95, the rotating motor 17 and the hoist 8. The second controller 102 is located inside the shielding room and is electrically connected to the hoist 8, the drive motor and the distance-adjusting push rod 3.

[0069] During inspection, the operator can control the horizontal push rod 93 and the vertical push rod 95 through the first controller 101 from the outside of the shielding room to adjust the height of the pad 92, and then realize axial multi-point inspection through the hoist 8, and control the rotating motor 17 through the first controller 101 to realize circumferential multi-point inspection, thereby inspecting the workpiece under inspection without entering the shielding room, and the operation is safer.

[0070] The implementation principle of a vertical rotating detection device in an embodiment of the present application is as follows: before the detection, the operator needs to replace the outer bonding plate 5 and the inner bonding plate 7 according to the inner and outer side dimensions of the workpiece to be inspected, and adjust the distance between the protection box 4 and the calibrator 6 and the distance that the horizontal platform 11 should move according to the size through the second controller 102, and then place the workpiece to be inspected on the horizontal platform 11, and then move the workpiece to the bottom of the adjustable lifting frame 3 through the rotating table 1, and then control the lifter 8 to descend, detect several points for calibration, after calibration, remove the calibrator 6 and the counterweight block, install the guide tube 30, and reinsert the source tube to ensure that the position of the radiation source remains unchanged, and then the operator can control the horizontal push rod 93 and the vertical push rod 95 through the first controller 101 outside the shielding room to insert the pad 92 into the bottom of the grid plate 91, and control the lifter 8 to drive the adjustable lifting frame 3. The lifting frame 3 descends to place the protection box 4 on the pad 92, and detects one position of the inspected workpiece. The inspected workpiece is then rotated several times and detected after rotation, so that multiple circumferential positions at the same height can be detected. After that, the hoist 8 lifts the adjustable lifting frame 3 upward, and the horizontal push rod 93 and the vertical push rod 95 insert the pad 92 at different heights of the grid plate 91. The adjustable lifting frame 3 is lowered again, and the above detection steps are repeated to detect the detection positions at different heights, thereby realizing axial multi-point detection. The entire detection process can ensure that the outer bonding plate 5 and the inspected workpiece are close to each other, and the detection effect is better. Moreover, there is no need to place the inspected workpiece horizontally, which is suitable for hollow inspected workpieces and has a wider range of applications. There is no need for operators to enter the shielding room to detect and adjust the inspected workpiece, so the operation is safer and the operation efficiency is higher.

[0071] The embodiment of the present application discloses a vertical rotation detection method.

[0072] Reference Fig.13 A vertical rotation detection method, using the above-mentioned vertical rotation detection device, comprises the following steps:

[0073] S1: Replace components: replace the outer laminating plate 5 and the inner laminating plate 7 according to the outer surface and inner surface dimensions of the inspected workpiece, so that they better fit the surface of the inspected workpiece;

[0074] S2: Debugging equipment: Debug the moving distance of the horizontal platform 11 on the rotating table 1 according to the size of the inspected workpiece, so that the inspected workpiece can be close to the outer bonding plate 5, and debug the distance between the protection box 4 and the calibrator 6 according to the inner diameter size of the inspected workpiece, so that the inner bonding plate 7 can be close to the inner surface of the inspected workpiece;

[0075] S3: Loading: placing the inspected workpiece on the horizontal platform 11;

[0076] S4: Calibration: insert the source tube into the small hole at the top of the calibrator 6 so that the radiation source is located at the center, detect several points for calibration, and after the calibration is completed, remove the calibrator 6 and the counterweight, then install the guide tube 30 so that the bottom of the guide tube 30 is consistent with the center of the calibrator 6, and insert the source tube from the top to the bottom of the guide tube 30 to ensure that the position of the radiation source remains unchanged;

[0077] S5: Detect circumferential detection points: insert the pad 92 at the bottom of the grid plate 91 through the horizontal push rod 93 and the vertical push rod 95, and then place the protection box 4 on the pad 92 through the lifting device 8, so as to detect one position of the inspected workpiece, and then drive the inspected workpiece to rotate a certain angle through the rotating motor 17, and detect the position at the same height of the inspected workpiece. After repeating this step, multiple circumferential positions at the same height can be detected;

[0078] S6: Detection of axial detection points: After all the positions at the same height are detected, the adjustable lifting frame 3 can be lifted upward by the hoist 8, and then the pad 92 is inserted into a relatively high position of the grid plate 91 by the horizontal push rod 93 and the vertical push rod 95, and the above step S5 is repeated to perform multi-point detection on a position at another height. The axial positions at different heights can be detected by repeating this number of steps.

[0079] Specifically, when performing repeated tests on the same product, steps S1, S2 and S4 may not be performed in subsequent tests, thereby saving test time.

[0080] The implementation principle of a vertical rotation detection method in an embodiment of the present application is: the heights of the protection box 4, the calibrator 6 and the guide tube 30 are adjusted through the hoist 8 and the adjustable lifting frame 3, and the inspected workpiece is rotated through the rotating table 1, so as to realize circumferential and axial multi-point detection when the workpiece is placed vertically, which is suitable for hollow workpieces.

[0081] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vertical rotation detection device, characterized in that: include: A rotating table (1) is arranged on the ground and comprises a horizontal platform (11) which can be moved and rotated horizontally and is used to place the inspected workpiece, and a rotating motor (17) is arranged below the horizontal platform (11) and is used to drive the horizontal platform (11) to rotate; The detection stand (2) is arranged on the ground and is formed by welding a plurality of channel steels, including a portal frame (21) and two channel steel vertical rails (22) located inside the portal frame (21), wherein the channel steel vertical rails (22) and the portal frame (21) are fixedly connected via a transverse plate (23); An adjustable lifting frame (3) is lifted and slidably arranged between the two channel steel vertical rails (22), and the adjustable lifting frame (3) is in an N shape. A protection box (4) with a detector arranged therein and a calibrator (6) with a radiation source arranged therein are respectively installed at two ends below the adjustable lifting frame (3). The side end of the protection box (4) is detachably connected to an outer bonding plate (5) bonded to the outer surface of the inspected workpiece by bolts, and the side end of the calibrator (6) is detachably connected to an inner bonding plate (7) bonded to the inner surface of the inspected workpiece by bolts. The detector and the radiation source are located on the same axis, and the distance between the two is adjustable. A first camera (38) and a second camera (39) are installed on the adjustable lifting frame (3), and the first camera (38) and the second camera (39) are electrically connected to a display screen (20); The adjustable lifting frame (3) comprises a guide tube 30 for installing a radioactive source, two connecting channel steels (31) located on both sides, and a connecting plate (32) for fixing the two connecting channel steels (31); A hoist (8) is arranged at the upper end of the detection platform (2) and is used to lift the adjustable lifting frame (3); The auxiliary positioning mechanism (9) comprises two grating plates (91) fixed on both sides of the channel steel vertical rail (22), and a pad (92) is inserted into the grating plates (91), a horizontal push rod (93) is fixed on the channel steel vertical rail (22), and a connecting piece (94) is fixed on the output end of the horizontal push rod (93), a vertical push rod (95) is fixed on the connecting piece (94), and the upper end of the vertical push rod (95) is fixed to the pad (92); The auxiliary control mechanism (10) comprises a first controller (101) and a second controller (102), wherein the first controller (101) is located outside the shielding room and is electrically connected to the horizontal push rod (93), the vertical push rod (95), the rotating table (1) and the hoist (8), and the second controller (102) is located inside the shielding room and is electrically connected to the hoist (8), the rotating table (1) and the adjustable lifting frame (3).

2. A vertical rotation detection device according to claim 1, characterized in that: The first camera (38) is fixed on the connecting plate (32), a side plate (33) is fixed on the inner side of the connecting channel steel (31), and the other edge of the side plate (33) and the connecting channel steel (31) are clamped on one side edge of the channel steel vertical rail (22) to achieve a sliding effect.

3. A vertical rotation detection device according to claim 2, characterized in that: The adjustable lifting frame (3) further comprises a flat plate (34) fixed to the side end of the connecting channel steel (31), a slide plate (35) is slidably arranged below the flat plate (34), and a distance adjustment push rod (36) for controlling the lateral sliding of the slide plate (35) is arranged on the flat plate (34), the distance adjustment push rod (36) is electrically connected to the second controller (102), the second camera (39) is fixed to the lower surface of the slide plate (35), a vertical plate (37) is detachably connected to the lower side of the slide plate (35) by bolts, the calibrator (6) is fixed to the lower side of the vertical plate (37), and a counterweight block is arranged on the side of the connecting channel steel (31) away from the flat plate (34).

4. A vertical rotation detection device according to claim 1, characterized in that: The rotating platform (1) further comprises a frame (12) arranged on the ground, a movable threaded rod (13) and a guide rod (14) being rotatably arranged inside the frame (12), and a movable block (15) being slidably arranged on the guide rod (14), the movable block (15) being threadedly connected to the movable threaded rod (13), a driving motor for driving the movable threaded rod (13) to rotate being arranged inside the frame (12), and the driving motor being electrically connected to the second controller (102), a rotating plate (16) being rotatably arranged above the movable block (15), a rotating motor (17) being installed below the movable block (15), and the rotating motor (17) being electrically connected to the first controller (101), an intermediate plate (18) being slidably arranged above the rotating plate (16), the horizontal platform (11) being slidably arranged above the intermediate plate (18), and a retaining frame (19) being arranged on the channel steel vertical rail (22); The retaining frame (19) comprises a crossbar (191) and two rotating wheels (192), wherein the two rotating wheels (192) are symmetrically distributed at two ends of the crossbar (191).

5. A vertical rotation detection device according to claim 4, characterized in that: The retaining frame (19) further comprises a mounting plate (193) fixed on the channel steel vertical rail (22), a first sliding rod (194) being slidably arranged on the mounting plate (193), and an end of the first sliding rod (194) being fixedly connected to the cross bar (191), and a first spring (195) being arranged between the cross bar (191) and the mounting plate (193), a sliding sleeve on the cross bar (191) being provided with two sliding sleeves (196), and the sliding sleeves (196) being fixed to the cross bar (191) by means of a latch, a pressure sensor (197) being fixed to the sliding sleeve (196), and a bracket being fixed to the pressure sensor (197), the rotating wheel (192) being rotatably arranged on the bracket, and a positioning assembly (198) for fixing the first sliding rod (194) being arranged on the back side of the mounting plate (193).

6. A vertical rotation detection device according to claim 5, characterized in that: The positioning assembly (198) comprises two symmetrically distributed fixing plates (1981) fixed on the back side of the mounting plate (193), a bidirectional threaded rod (1982) being rotatably arranged between the two fixing plates (1981), and a clamping motor (1983) for driving the bidirectional threaded rod (1982) to rotate is installed on one of the fixing plates (1981), and the clamping motor (1983) is electrically connected to the second controller (102), and two clamping plates (1984) for clamping the first sliding rod (194) are threadedly connected to the bidirectional threaded rod (1982).

7. A vertical rotation detection device according to claim 6, characterized in that: The mounting plate (193) is also provided with an auxiliary debugging component (199), the auxiliary debugging component (199) comprising a second slide bar (1991) slidably arranged on the mounting plate (193), the second slide bar (1991) having the same width as the first slide bar (194), and the second slide bar (1991) being located directly below the first slide bar (194), shoulders (1992) being fixed on both sides of an end of the second slide bar (1991) away from the clamping plate (1984), a second spring (1993) being arranged between the shoulder (1992) and the mounting plate (193), and a positioning wheel (1994) being rotatably arranged at the end of the second slide bar (1991), and a scale showing the distance between the positioning wheel (1994) and the axis of the rotating motor (17) being arranged on the second slide bar (1991).

8. A vertical rotation detection device according to claim 4, characterized in that: An iron bar (111) is fixed below the horizontal platform (11), and a magnetic block (181) that is attracted to the iron bar (111) is arranged above the middle plate (18). A circular hole (182) is provided in the middle of the middle plate (18), a positioning push rod (183) is arranged in the circular hole (182), a mounting block (184) is arranged at the side end of the positioning push rod (183), and a supporting tension spring (185) is arranged between the mounting block (184) and the middle plate (18).

9. A vertical rotation detection method, characterized in that: A vertical rotation detection device according to any one of claims 1 to 8 is used, comprising the following steps: S1: Replacement of components: Replace the outer laminating plate (5) and the inner laminating plate (7) according to the outer surface and inner surface dimensions of the inspected workpiece, so that they better fit the surface of the inspected workpiece; S2: Debugging equipment: Debugging the moving distance of the horizontal platform (11) on the rotating table (1) according to the size of the workpiece to be inspected, so that the workpiece to be inspected can be close to the outer bonding plate (5); debugging the distance between the protection box (4) and the calibrator (6) according to the inner diameter size of the workpiece to be inspected, so that the inner bonding plate (7) can be close to the inner surface of the workpiece to be inspected; S3: Loading: placing the workpiece to be inspected on the horizontal platform (11); S4: Calibration: Insert the source tube into the small hole at the top of the calibrator (6) so that the radiation source is located at the center. First, check several points for calibration. After the calibration is completed, remove the calibrator (6) and the counterweight. Then install the guide tube (30) so that the bottom of the guide tube (30) and the center of the calibrator (6) are aligned. Insert the source tube from the top to the bottom of the guide tube (30) to ensure that the position of the radiation source remains unchanged. S5: Detecting circumferential detection points: inserting a pad (92) at the bottom of the grid plate (91) by means of a horizontal push rod (93) and a vertical push rod (95), and then placing a protection box (4) on the pad (92) by means of a lifting device (8), so that one position of the inspected workpiece can be detected, and then the inspected workpiece is driven to rotate a certain angle by means of a rotating motor (17), and a position at the same height of the inspected workpiece is detected. After repeating this step, multiple circumferential positions at the same height can be detected; S6: Detecting the axial detection points: After all the positions at the same height have been detected, the adjustable lifting frame (3) can be lifted upward by the hoist (8), and then the pad (92) can be inserted into a relatively high position of the grid plate (91) by the horizontal push rod (93) and the vertical push rod (95), and the above step S5 can be repeated to perform multi-point detection on a position at another height. By repeating this number of steps, the axial positions at different heights can be detected.

10. A vertical rotation detection method according to claim 9, characterized in that: When performing repeated tests on the same product, steps S1, S2 and S4 may not be performed in subsequent tests.

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