Turnover type core material appearance detection mechanism

Abstract

The invention discloses a turnover core material appearance detection mechanism, and relates to the technical field of core material detection, and the turnover core material appearance detection mechanism comprises a mouse cage frame, a bottom support member, a friction roller conveying line, a detection member and a linkage clamping member; the mouse cage frame is arranged above the bottom supporting piece, and the bottom supporting piece drives the mouse cage frame to rotate so as to turn over the core material; the friction roller conveying line is arranged in the squirrel cage frame and rotates along with the squirrel cage frame; the detection piece is arranged on one side of the friction roller conveying line and is used for collecting a high-definition image of the core material; the linkage clamping piece is arranged on the mouse cage frame and the friction roller conveying line and used for controlling clamping of core materials. According to the mechanism, through cooperative linkage of multiple mechanisms, the mechanism can turn over a material disc loaded with core materials by 180 degrees, and all-directional appearance defect detection of the front and back faces of the core materials is achieved through the detection pieces.

Description

Technical Field

[0001] This invention relates to the field of core material testing technology, and in particular to a flip-type core material appearance testing mechanism. Background Technology

[0002] As a core component of metal fuel elements, the appearance quality of the lead material is of paramount importance. During the production process, various defects may appear on the surface of the hollow cylindrical lead material due to factors such as manufacturing processes and raw materials, including scratches, cracks, stains, and holes. These defects not only affect the physical and mechanical properties of the lead material but may also lead to fuel element failure during use and even pose safety hazards. Traditional inspection methods involve manually observing the exposed cylindrical surface of the lead material by flipping it over a tray, which is inefficient and has blind spots.

[0003] Chinese patent application publication number "CN218766687U" discloses a flip-type visual inspection mechanism. The mechanism includes a flip platform and a visual inspection device. The flip platform comprises a workstation operating platform, a horizontal linear movement component, a vertical movement component, and a rotating component. The two ends of the workstation operating platform are respectively mounted on the left and right vertical movement components via the rotating component. The bottom of the vertical movement component is connected to the horizontal linear movement component. The visual inspection device includes a gantry-like support and a camera assembly, all mounted above the flip platform. This allows for the inspection of multiple products in a single scan. The rotating component drives the workstation operating platform to flip, enabling multi-faceted inspection in conjunction with the visual inspection device. Furthermore, the vertical movement component and the horizontal linear movement component drive the workstation operating platform to move vertically up and down and horizontally in a straight line, achieving optimal inspection position selection.

[0004] However, the existing technology relies on the combined motion of horizontal and vertical moving components to achieve centering and positioning. This multi-degree-of-freedom mechanism increases the complexity of the structure and the difficulty of control, affecting the stability of long-term operation. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a flip-type core material appearance inspection mechanism with a more stable structure and capable of core material appearance inspection.

[0006] To solve the above-mentioned technical problems, the present invention provides a flipping core material appearance inspection mechanism, including a cage frame, a bottom support, a friction roller conveyor line, an inspection component, and a linkage clamping component; the cage frame is disposed above the bottom support, and the bottom support drives the cage frame to rotate to flip the core material; the friction roller conveyor line is disposed in the cage frame and rotates with the cage frame; the inspection component is disposed on one side of the friction roller conveyor line for acquiring high-definition images of the core material; the linkage clamping component is disposed between the cage frame and the friction roller conveyor line. Online, used to control the clamping of the core material; the linkage clamping component includes a lead screw centering module, an upper clamping module, a lower clamping module, and a synchronous belt centering module; the lead screw centering module is set on the squirrel cage frame and is used to drive the upper clamping module and the lower clamping module to move synchronously in opposite directions or in opposite directions; the upper clamping module is set on the squirrel cage frame and is used to press the core material from above; the lower clamping module is set on the friction roller conveyor line and is used to lift and support the core material from below; the synchronous belt centering module is set on the lower clamping module and is used for longitudinal centering of the core material.

[0007] Preferably, the mouse cage frame includes a frame cage, a first guide rail, a first slider, a second slider, a concave plate, two bent plate single-hole chains, and two symmetrically arranged circular supports; both circular supports are provided with chain grooves and roller grooves, the frame cage is disposed between the two circular supports, the first guide rail is vertically disposed inside the frame cage, the first slider and the second slider are respectively disposed on the upper and lower sides of the first guide rail, and the concave plate is connected to the first slider; the two bent plate single-hole chains are respectively disposed in the chain grooves of the two circular supports.

[0008] Preferably, the bottom support includes a supporting base frame, roller brackets, rotating wheels, a drive servo motor, a reducer, two rotating sprockets, and a first transmission shaft; the roller brackets are located at the four corners of the supporting base frame, and each roller bracket has a rotating wheel at its top that matches the groove of the cage frame; the reducer is located at the output end of the drive servo motor, and the drive servo motor and reducer are respectively fixed on the supporting base frame; the first transmission shaft is located at the output end of the reducer; the two rotating sprockets are respectively located at both ends of the first transmission shaft, and the two rotating sprockets are respectively connected to the single-hole chain of the curved plate of the cage frame.

[0009] Preferably, the detection component includes a camera body, a camera lens, a camera mount, a light source mounting base, and an annular light source; the camera mount is fixed to the top of the bottom support, the camera body is fixed to the camera mount, the camera lens is mounted on the camera body, the annular light source is connected to the camera mount through the light source mounting base, and the camera lens is positioned on the axis of the annular light source.

[0010] Preferably, the friction roller conveyor line includes two conveyor frame frames, a plurality of friction wheel units, a drive unit, a horizontal mounting plate, and two symmetrically arranged vertical mounting plates; the two vertical mounting plates are respectively disposed on both sides of the horizontal mounting plate, the two conveyor frame frames are respectively disposed on the inner sides of the two vertical mounting plates, the plurality of friction wheel units are respectively disposed on the two conveyor frame frames, and the drive unit drives the friction wheel units to run; the vertical mounting plates are connected to the mouse cage frame.

[0011] Preferably, the drive unit includes a conveyor servo motor, a drive sprocket, a motor mounting base, a drive chain, and a second drive shaft; the conveyor servo motor is fixed to the bottom of the horizontal mounting plate via the motor mounting base, the drive sprocket is located at the output end of the conveyor servo motor, and the drive chain is sleeved on the drive sprocket; each friction wheel unit includes a friction wheel body, two driven sprockets, a drive chain, and a wheel axle; the wheel axle is rotatably mounted on the corresponding conveyor frame, the friction wheel body is sleeved on one end of the wheel axle, the two driven sprockets are sleeved on the other end of the wheel axle, the drive chain is sleeved on the driven sprockets, and the drive chain is simultaneously sleeved on the driven sprockets of adjacent friction wheel units; the second drive shaft is located between two conveyor frames, and both ends of the second drive shaft are respectively connected to the wheel axles of the friction wheel units on the two conveyor frames.

[0012] Preferably, the lead screw centering module includes a left-hand ball screw, a right-hand ball screw, a first ball screw nut, a second ball screw nut, and a lead screw servo motor; the lead screw servo motor is mounted on the frame cage of the squirrel cage; the left-hand ball screw and the right-hand ball screw are coaxially arranged; the first ball screw nut is sleeved on the left-hand ball screw; the second ball screw nut is sleeved on the right-hand ball screw; the right-hand ball screw is located at the output end of the lead screw servo motor; the left-hand ball screw and the right-hand ball screw are connected by a coupling; the first ball screw nut is connected to a concave plate; and the second ball screw nut is connected to a friction roller conveyor line.

[0013] Preferably, the upper clamping module includes an upper clamping plate, an upper clamping electric actuator, a first guide unit, and a first floating joint; the upper clamping electric actuator is connected to the upper clamping plate through the first floating joint; the first guide unit includes an upper guide shaft, an upper guide seat, an upper linear bearing, and an upper parallel limiting plate; the upper guide seat is fixed on the upper clamping plate; one end of the upper guide shaft is fixedly connected to the upper guide seat; the other end of the upper guide shaft is connected to the upper parallel limiting plate; the upper linear bearing is sleeved on the surface of the upper guide shaft; the upper linear bearing is connected to the concave plate.

[0014] Preferably, the lower clamping module includes a lower clamping plate, a lower clamping electric actuator, a second guide unit, a second floating joint, and a fixed base plate; the lower clamping electric actuator is connected to the lower clamping plate through the second floating joint; the second guide unit includes a lower guide shaft, a lower guide seat, a lower linear bearing, and a lower parallel limiting plate; the lower guide seat is fixed on the lower clamping plate; one end of the lower guide shaft is fixedly connected to the lower guide seat; the other end of the lower guide shaft is connected to the lower parallel limiting plate; the lower linear bearing is sleeved on the surface of the lower guide shaft; and the lower linear bearing is connected to the fixed base plate; the fixed base plate is located at the bottom of the friction roller conveyor line.

[0015] Preferably, the synchronous belt alignment module includes a synchronous belt drive assembly, a clamping execution assembly, and a guide assembly; the synchronous belt drive assembly includes a synchronous belt, two synchronous pulleys, and a synchronous belt servo motor; one of the synchronous pulleys is sleeved on the output end of the synchronous belt servo motor, and the synchronous belt is sleeved on the two synchronous pulleys; the clamping execution assembly includes two alignment clamping plates, two synchronous belt clamping plates, and two clamping plate mounting plates; both synchronous belt clamping plates are disposed on the synchronous belt, and both alignment clamping plates are fixed to the synchronous belt clamping plates by corresponding clamping plate mounting plates; the guide assembly includes a second slide rail and a third slider; the third slider is disposed on the second slide rail, and the alignment clamping plate is simultaneously fixed to the third slider and the synchronous belt clamping plate; the second slide rail, the other synchronous pulley, and the synchronous belt servo motor are all disposed on the movable parts of the lower clamping module.

[0016] Compared with related technologies, the flip-type core material appearance inspection mechanism provided by the present invention has the following beneficial effects:

[0017] This invention provides a flip-type core material appearance inspection mechanism. It uses the coordinated action of the lower clamping module of the linkage clamping mechanism and the synchronous belt centering module to achieve precise positioning and fixation of the full-load material tray. It uses an electric push rod and a guide mechanism to achieve precise vertical positioning. The synchronous belt centering module and the lower clamping module form a double fixation, which significantly improves the stability of the material tray. The modular design facilitates maintenance and adjustment and ensures long-term operational reliability.

[0018] This flip-type core material appearance inspection mechanism uses a ball screw centering module to achieve synchronous centering. Specifically, the first ball screw nut is fixed to the concave plate, and the second ball screw nut is connected to the vertical mounting plate of the friction roller conveyor line. Left-hand and right-hand ball screw drives are used to ensure complete synchronization and consistent stroke on both sides. Precision mechanical coordination ensures accurate positioning of the material tray. Buffers are added to key positions of the cage frame to effectively absorb impacts at the end of the movement, ensuring safe and reliable equipment operation. This design not only achieves efficient and precise centering but also ensures the safety and stability of equipment operation.

[0019] This flip-type core material appearance inspection mechanism uses an upper clamping module and a lower clamping module to achieve dual protection for process safety; a precision guide mechanism ensures the vertical accuracy of the clamping action; and the modular design makes it easy to adjust the clamping parameters according to different sized material trays.

[0020] This flip-type core material appearance inspection mechanism adopts a dual-station inspection design, completing the inspection of both sides in one clamping; servo control ensures the flip angle accuracy is ±0.5°; closed-loop control throughout the process ensures precise matching of the action sequence of each mechanism; and a safety interlock design prevents misoperation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a side view of the overall structure of the present invention;

[0024] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point A in the middle;

[0025] Figure 5 For the present invention Figure 3 Schematic diagram of the structure at point B;

[0026] Figure 6 This is a schematic diagram of the meshing structure of the bent plate single-hole chain and the rotating sprocket of the present invention;

[0027] Figure 7 This is a schematic diagram of the bottom support structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the detection element structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the friction roller conveyor line structure of the present invention;

[0030] Figure 10 This is a schematic diagram of the frame cage structure of the present invention;

[0031] Figure 11 This is a schematic diagram of the synchronous belt alignment module structure of the present invention.

[0032] Labels in the diagram: 1. Squirrel cage frame; 2. Bottom support; 3. Friction roller conveyor line; 4. Detector; 5. Linkage clamping component; 6. Full-load tray; 7. Empty tray; 11. Front circular bracket; 12. Rear circular bracket; 13. Connecting beam; 14. Inner frame; 15. First guide rail; 16. Concave plate; 17. Bent plate single-hole chain; 19. Bumper block; 20. Buffer; 21. Roller bracket; 22. Rotating wheel; 23. Drive servo motor; 24. Reducer; 25. Rotating sprocket; 26. First drive shaft; 31. Conveyor line frame. 321. Friction wheel body; 322. Driven sprocket; 323. Transmission chain; 324. Axle; 33. Conveyor line servo motor; 34. Drive sprocket; 35. Horizontal mounting plate; 36. Motor mounting base; 37. Vertical mounting plate; 38. Drive chain; 39. Second transmission shaft; 41. Camera body; 42. Camera lens; 43. Camera mount; 44. Light source mounting base; 45. Ring light source; 51. Lead screw centering module; 52. Upper clamping module; 53. Lower clamping module; 54. Synchronous belt centering module; 151. First slider; 152, Second slider; 511, Left-hand ball screw; 512, Right-hand ball screw; 513, First ball screw nut; 514, Second ball screw nut; 515, Screw servo motor; 521, Upper clamping plate; 522, Upper clamping electric actuator; 523, First guide unit; 524, First floating joint; 531, Lower clamping plate; 532, Lower clamping electric actuator; 533, Second guide unit; 534, Second floating joint; 535, Fixed base plate; 5231, Upper guide shaft; 5232, Upper guide... 5233, Upper linear bearing; 5234, Upper parallel limiting plate; 5331, Lower guide shaft; 5332, Lower guide seat; 5333, Lower linear bearing; 5334, Lower parallel limiting plate; 541, Synchronous belt drive assembly; 542, Clamping execution assembly; 543, Guide assembly; 5411, Synchronous belt; 5412, Synchronous pulley; 5413, Synchronous belt servo motor; 5421, Centering clamping plate; 5422, Synchronous belt clamping plate; 5423, Clamping plate mounting plate; 5431, Second slide rail; 5432, Third slider. Detailed Implementation

[0033] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.

[0034] Example 1

[0035] like Figures 1 to 11 As shown, this embodiment describes a flip-type core material appearance inspection mechanism. Figure 1 As shown, the mechanism mainly includes a rat cage frame 1, a bottom support component 2, a friction roller conveyor line 3, a detection component 4, and a linkage clamping component 5.

[0036] The mouse cage frame 1 is positioned above the bottom support 2. Specifically, in conjunction with... Figure 2 The mouse cage frame 1 includes a front circular support 11 and a rear circular support 12 arranged coaxially, which are fixedly connected by six connecting beams 13 to form a stable frame structure. An internal frame 14, composed of intersecting horizontal and vertical beams, further forms the frame cage. The mouse cage frame 1 is connected to the bottom support member 2 via a single-hole chain 17 on its outer curved plate.

[0037] The bottom support 2 is used to drive and support the mouse cage frame 1. Figure 7 As shown, roller brackets 21 are symmetrically arranged at the four corners of the bottom support 2, and each roller bracket 21 is equipped with a rotating wheel 22. The roller surfaces of these rotating wheels 22 contact the grooves on the outer circumference of the cage frame 1. Preferably, the axis of these rotating wheels forms a 45-degree angle with the horizontal central axis of the circular bracket to provide stable support and guidance. A drive servo motor 23 is fixed on the bottom support 2. The drive servo motor 23 is connected to a first transmission shaft 26 through a reducer 24. Rotating sprockets 25 are installed at both ends of the first transmission shaft 26. The rotating sprockets 25 mesh with the single-hole chain 17 of the curved plate of the cage frame 1, thereby driving the cage frame 1 to perform precise rotation.

[0038] The friction roller conveyor 3 is installed inside the rat cage frame 1 and rotates with the rat cage frame 1. Figure 9 As shown, the friction roller conveyor line 3 includes two parallel conveyor frames 31 and a mounting bracket composed of a horizontal mounting plate 35 and a vertical mounting plate 37. The conveyor frames 31 are mounted on the mounting bracket, and several friction wheel units are mounted on the conveyor frames 3. Each friction wheel unit includes a friction wheel body 321, a driven sprocket 322, a transmission chain 323, and a wheel axle 324. The drive unit includes a conveyor servo motor 33 and a second transmission shaft 39. The conveyor servo motor 33 is fixed below the horizontal mounting plate 35 by a motor mounting base 36. The conveyor servo motor 33 drives one or two friction wheel units through a drive sprocket 34 and a drive chain 38, and simultaneously connects the friction wheel units on both sides using the second transmission shaft 39. Then, all friction wheel units are linked together through the transmission chain 323 to ensure synchronous operation and provide stable conveying power for the material tray.

[0039] The detection element 4 is used to acquire high-definition images of the core material. For example... Figure 8 As shown, the detection component 4 includes a camera body 41, a camera lens 42, a camera mount 43, a light source mount 44, and a ring light source 45. The camera mount 43 is fixed to the top of the support column of the bottom support component 2, and the ring light source 45 (preferably a white LED diffuse reflection light source) is arranged around the camera lens 42 to provide a uniform, low-shadow lighting environment for the detection area.

[0040] The linkage clamping component 5 is mounted on the cage frame 1 and is used to position and clamp the core material and the material tray during the detection and flipping process. Its basic components include a lead screw centering module 51, an upper clamping module 52, a lower clamping module 53, and a synchronous belt centering module 54.

[0041] The basic workflow of this embodiment is as follows:

[0042] 1. Feeding and Initial Positioning: The full-load tray 6, carrying the core material to be tested, is conveyed to the testing station by the friction roller conveyor line 3 and then stops. At the same time, an empty tray 7 is pre-positioned directly above the full-load tray 6.

[0043] 2. Initial Image Acquisition: Inspection piece 4 performs high-definition image acquisition on the upper surface of the core material in its initial position to complete the first appearance defect inspection.

[0044] 3. Material tray clamping and centering: The linkage clamping component 5 is activated. Its lower clamping module 53 operates, lifting and fixing the fully loaded material tray 6 from below; at the same time, its synchronous belt centering module 54 operates to center and clamp the material tray horizontally, ensuring its accurate position.

[0045] 4. Upper and lower material trays pressing together: The linkage clamping component 5 continues to operate. Its lead screw centering module 51 drives the upper empty material tray 7 to precisely center with the lower full-load material tray 6. After centering is completed, the upper clamping module 52 operates, pressing the empty material tray 7 downward onto the full-load material tray 6 to form a sealed assembly.

[0046] 5. Overall Tilting and Core Material Transfer: The drive servo motor 23 of the bottom support 2 starts, driving the entire cage frame 1 and its internal mechanisms to rotate 180 degrees via chain transmission. During the tilting process, the core material, under the action of gravity, smoothly falls from the full-load tray 6 below and is transferred to the empty tray 7 above.

[0047] 6. Secondary Inspection and Unloading: After the cage frame 1 is rotated into position, the inspection component 4 acquires images of the core material that has been transferred to the empty material tray 7, completing the second inspection. After all inspections are completed, the mechanism rotates 180 degrees again to reset. The various parts of the linkage clamping component 5 are released in sequence, and the material tray that has completed inspection is sent out of the station by the friction roller conveyor line 3.

[0048] Example 2

[0049] Based on Embodiment 1, this embodiment further discloses the preferred and refined structures and precision control measures for each core component to improve the reliability and detection accuracy of the entire detection system.

[0050] Reference Figure 4 and Figure 10On the vertical beams of the inner frame 14 of the cage frame 1, first guide rails 15 are vertically installed. Each first guide rail 15 is equipped with two upper and two lower first sliders 151 and a second slider 152. The upper concave plate 16 is connected to the first guide rail 15 on both sides through the first sliders 151, thus allowing it to slide up and down along the guide rail. The lower friction roller conveyor line 3 has vertical mounting plates 37 on both sides connected to the first guide rail 15 through the second sliders 152, realizing the sliding installation of the friction roller conveyor line 3 within the cage frame 1. This structure ensures the linearity and precision of the structural movement.

[0051] like Figure 8 As shown, the lead screw alignment module 51 includes a left-hand ball screw 511 and a right-hand ball screw 512 coaxially arranged, connected by a coupling. A lead screw servo motor 515 drives the right-hand ball screw 512 via another coupling. A first ball screw nut 513 is connected to a concave plate 16, and a second ball screw nut 514 is connected to the vertical mounting plate 37 of the friction roller conveyor line 3. When the lead screw servo motor 515 rotates, the first ball screw nut 513 and the second ball screw nut 514 on the left-hand ball screw 511 and the right-hand ball screw 512 respectively drive the concave plate 16 and the friction roller conveyor line 3 to move synchronously in opposite directions or in opposite directions, achieving precise alignment.

[0052] like Figure 3-5 As shown, the linkage clamping component 5 also includes an upper clamping module 52 and a lower clamping module 53. The upper clamping module 52 and the lower clamping module 53 are spatially opposite to each other and are used to clamp and fix the core material from both upper and lower directions. The core components and working principles of the upper clamping module 52 and the lower clamping module 53 are the same.

[0053] like Figure 4 As shown, the upper clamping module 52 includes an upper clamping plate 521, an upper clamping electric actuator 522, four sets of first guide units 523, and a first floating joint 524. The upper clamping electric actuator 522 is connected to the upper clamping plate 521 through the first floating joint. Each of the first guide units 523 includes an upper guide shaft 5231, an upper guide seat 5232, an upper linear bearing 5233, and an upper parallel limiting plate 5234. The upper guide seat 5232 is fixed on the upper clamping plate 521. One end of the upper guide shaft 5231 is fixedly connected to the upper guide seat 5232, and the other end of the upper guide shaft 5231 is connected to the upper parallel limiting plate 5234. The upper linear bearing 5233 is sleeved on the surface of the guide shaft. Two upper parallel limiting plates 5234 are provided in the four sets of first guide units 523 to limit the stroke of the upper clamping plate 521. The upper linear bearing 5233 is connected to the concave plate 16 of the mouse cage frame 1.

[0054] The upper guide shaft 5231 and the upper linear bearing 5233 are fitted with a clearance to ensure that the upper clamping plate 521 can only move smoothly in the vertical direction without shaking or jamming.

[0055] like Figure 5 As shown, the lower clamping module 53 includes a lower clamping plate 531, a lower clamping electric actuator 532, four sets of second guide units 533, a second floating joint 534, and a fixed base plate 535; the lower clamping electric actuator 532 is connected to the lower clamping plate 531 through the second floating joint 534; the second guide unit 533 includes a lower guide shaft 5331, a lower guide seat 5332, a lower linear bearing 5333, and a lower parallel limiting plate 5334; the lower guide seat 5332 is fixed to the lower... On the clamping plate 531, one end of the lower guide shaft 5331 is fixedly connected to the lower guide seat 5332, and the other end of the lower guide shaft 5331 is connected to the lower parallel limiting plate 5334. The lower linear bearing 5333 is sleeved on the surface of the guide shaft. Two lower parallel limiting plates 5334 are provided in the four sets of second guide units 533 to limit the stroke of the lower clamping plate 531. The fixed base plate 535 is fixed to the bottom of the friction roller conveyor line 3. The lower linear bearing 5333 is connected to the fixed base plate 535.

[0056] The lower guide shaft 5331 and the lower linear bearing 5333 are fitted with a clearance to ensure that the lower clamping plate 531 can only move smoothly in the vertical direction without shaking or jamming.

[0057] To ensure clamping accuracy and reliability, the parallelism error of the guide shaft axis is controlled within ≤0.02mm / m, and the symmetry error between guide shafts is ≤0.1mm.

[0058] The floating joint can effectively compensate for the slight alignment error that may exist between the electric actuator and the clamping plate, prevent the mechanism from being over-constrained or under internal stress, and ensure the smooth operation of the entire clamping process.

[0059] like Figure 8 As shown, the synchronous belt alignment module 54 is mounted on the clamping plate of the lower clamping module 53. This mechanism mainly includes a synchronous belt drive assembly 541, a clamping execution assembly 542, and a guide assembly 543.

[0060] The synchronous belt drive assembly 541 includes a synchronous belt 5411, two synchronous pulleys 5412, and a synchronous belt servo motor 5413. The synchronous belt servo motor 5413 drives one of the synchronous pulleys 5412 to rotate, thereby driving the synchronous belt 5411 to circulate.

[0061] The clamping actuator 542 includes two centering clamps 5421, two timing belt clamps 5422, and two clamp mounting plates 5423. The two timing belt clamps 5422 are respectively fixed to both sides of the timing belt 5411. The centering clamps 5421 and the timing belt clamps 5422 are fixedly connected by the clamp mounting plates 5423 to form an integral clamping unit.

[0062] The guide assembly 543 includes a second slide rail 5431 and a third slider 5432 that is clearance-fitted with it. The second slide rail 5431 is fixed to the lower clamping plate 531. The clamping plate mounting plate 5423 or the centering clamping plate 5421 is fixedly connected to the third slider 5432.

[0063] During operation, the synchronous belt servo motor 5413 drives the synchronous belt 5411 to move, which in turn drives the two fixed clamping units to move synchronously towards or away from each other along the second slide rail 5431, thereby achieving precise centering and clamping of the core material.

[0064] The empty material tray 7 is vertically fixed to the lower surface of the upper clamping plate 521. Its working surface is coplanar with the working surface of the full-load material tray 6 on the friction roller conveyor line 3, and the projected contour overlap is ≥95%, ensuring that the core material can be transferred smoothly.

[0065] A stop block 19 is provided on the circular bracket, concave plate 16 and vertical mounting plate 37 of the rat cage frame 1. A buffer 20 is installed at the corresponding position on the bottom support 2 and the connecting beam 13 to form a soft limit system to prevent overtravel and protect the equipment.

[0066] The basic workflow of this embodiment is as follows:

[0067] 1. Loading and Initial Positioning: The full-load tray 6, carrying the core material to be tested, is conveyed to the testing station by the friction roller conveyor line 3 and stops. At the same time, an empty tray 7 is pre-conveyed and positioned directly above the full-load tray 6 through the same or another conveyor system, and is initially supported by the upper clamping module 52.

[0068] 2. Initial image acquisition: The inspection piece 4 acquires a high-definition image of the upper surface of the core material in the fully loaded tray 6 at the initial position, completing the first appearance defect inspection.

[0069] 3. Lower Positioning and Clamping: The lower clamping module 53 is activated, and its lower clamping electric actuator 532 drives the lower clamping plate 531 to move upward, passing through the gap of the friction roller conveyor line 3, lifting the full-loaded tray 6 and detaching it from the roller surface. Subsequently, the synchronous belt centering module 54 installed on the lower clamping plate 531 is activated, and its two centering clamping plates 5421 move synchronously towards each other, performing horizontal centering and clamping on the lifted full-loaded tray 6.

[0070] 4. Alignment and Pressing of Upper and Lower Material Trays: The lead screw alignment module 51 is activated, driving the upper empty material tray 7 (via the concave plate 16 and the upper clamping module 52) to precisely align with the lower fully loaded material tray 6, which has already been clamped. After alignment, the upper clamping module 52 is activated, and its upper clamping electric actuator 522 drives the upper clamping plate 521 downward, firmly pressing the empty material tray 7 onto the fully loaded material tray 6.

[0071] 5. Overall Tilting and Core Material Transfer: The drive servo motor 23 of the bottom support 2 starts, driving the entire cage frame 1 and all internal mechanisms to rotate 180 degrees through the rotating sprocket 25 and the bent plate single-hole chain 17. During the tilting process, the core material is smoothly detached from the full-load tray 6 below and transferred to the empty tray 7 above under the action of gravity.

[0072] 6. Secondary Inspection and Reset: After the cage frame 1 is rotated into position, the inspection component 4 acquires images of the core material that has been transferred to the empty material tray 7, completing the inspection of the second side. After all inspections are completed, the mechanism rotates 180 degrees again to reset. Then, the upper clamping module 52, the lower clamping module 53, and the synchronous belt centering module 54 are released in sequence, and the material tray that has completed the double-sided inspection is sent out of the station by the friction roller conveyor line 3, completing one inspection cycle.

[0073] Through the above-described embodiments, this invention achieves automated, blind-spot-free, and high-precision appearance inspection of the core material cylindrical surface, effectively overcoming the shortcomings of traditional manual inspection, such as low efficiency and blind spots.

Claims

1. A flip-type core material appearance inspection mechanism, characterized in that: The device includes a cage frame, a bottom support, a friction roller conveyor line, a detection component, and a linkage clamping component. The cage frame is positioned above the bottom support, which drives the cage frame to rotate and flip the core material. The friction roller conveyor line is located within the cage frame and rotates with it. The detection component is positioned on one side of the friction roller conveyor line and is used to acquire high-definition images of the core material. The linkage clamping component is located on both the cage frame and the friction roller conveyor line and is used to control the clamping of the core material. The linkage clamping component includes a screw alignment module, an upper clamping module, a lower clamping module, and a synchronous belt alignment module. The screw alignment module is located on the cage frame and is used to drive the upper and lower clamping modules to move synchronously in opposite directions. The upper clamping module is located on the cage frame and is used to press the core material from above. The lower clamping module is located on the friction roller conveyor line and is used to lift and support the core material from below. The synchronous belt alignment module is located on the lower clamping module and is used for longitudinal alignment of the core material.

2. The flip-type core material appearance inspection mechanism according to claim 1, characterized in that: The mouse cage frame includes a frame cage, a first guide rail, a first slider, a second slider, a concave plate, two bent plate single-hole chains, and two symmetrically arranged circular supports. Each of the two circular supports has chain grooves and roller grooves. The frame cage is positioned between the two circular supports. The first guide rail is vertically positioned inside the frame cage. The first slider and the second slider are respectively positioned on the upper and lower sides of the first guide rail. The concave plate is connected to the first slider. The two bent plate single-hole chains are respectively positioned in the chain grooves of the two circular supports.

3. The flip-type core material appearance inspection mechanism according to claim 2, characterized in that: The bottom support includes a supporting base frame, roller brackets, rotating wheels, a drive servo motor, a reducer, two rotating sprockets, and a first transmission shaft. The roller brackets are located at the four corners of the supporting base frame, and each roller bracket has a rotating wheel at its top that matches the groove of the cage frame. The reducer is located at the output end of the drive servo motor, and the drive servo motor and reducer are respectively fixed on the supporting base frame. The first transmission shaft is located at the output end of the reducer, and the two rotating sprockets are respectively located at both ends of the first transmission shaft. The two rotating sprockets are respectively connected to the single-hole chain of the curved plate of the cage frame.

4. The flip-type core material appearance inspection mechanism according to claim 1, characterized in that: The detection component includes a camera body, a camera lens, a camera mount, a light source mounting base, and an annular light source; the camera mount is fixed to the top of the bottom support, the camera body is fixed on the camera mount, the camera lens is mounted on the camera body, the annular light source is connected to the camera mount through the light source mounting base, and the camera lens is positioned on the axis of the annular light source.

5. The flip-type core material appearance inspection mechanism according to claim 1, characterized in that: The friction roller conveyor line includes two conveyor frame frames, several friction wheel units, a drive unit, a horizontal mounting plate, and two symmetrically arranged vertical mounting plates. The two vertical mounting plates are respectively located on both sides of the horizontal mounting plate, the two conveyor frame frames are respectively located on the inner sides of the two vertical mounting plates, the several friction wheel units are respectively located on the two conveyor frame frames, and the drive unit drives the friction wheel units to run. The vertical mounting plates are connected to the mouse cage frame.

6. The flip-type core material appearance inspection mechanism according to claim 5, characterized in that: The drive unit includes a conveyor servo motor, a drive sprocket, a motor mounting base, a drive chain, and a second drive shaft. The conveyor servo motor is fixed to the bottom of the horizontal mounting plate via the motor mounting base. The drive sprocket is located at the output end of the conveyor servo motor, and the drive chain is sleeved on the drive sprocket. Each friction wheel unit includes a friction wheel body, two driven sprockets, a drive chain, and a wheel axle. The wheel axle is rotatably mounted on the corresponding conveyor frame. The friction wheel body is sleeved on one end of the wheel axle, the two driven sprockets are sleeved on the other end of the wheel axle, and the drive chain is sleeved on the driven sprockets. The drive chain is also sleeved on the driven sprockets of adjacent friction wheel units. The second drive shaft is located between two conveyor frames, and both ends of the second drive shaft are connected to the wheel axles of the friction wheel units on the two conveyor frames, respectively.

7. The flip-type core material appearance inspection mechanism according to claim 2, characterized in that: The lead screw alignment module includes a left-hand ball screw, a right-hand ball screw, a first ball screw nut, a second ball screw nut, and a lead screw servo motor. The lead screw servo motor is mounted on the frame of the squirrel cage. The left-hand ball screw and the right-hand ball screw are coaxially arranged. The first ball screw nut is sleeved on the left-hand ball screw, and the second ball screw nut is sleeved on the right-hand ball screw. The right-hand ball screw is located at the output end of the lead screw servo motor. The left-hand ball screw and the right-hand ball screw are connected by a coupling. The first ball screw nut is connected to a concave plate, and the second ball screw nut is connected to a friction roller conveyor line.

8. The flip-type core material appearance inspection mechanism according to claim 2, characterized in that: The upper clamping module includes an upper clamping plate, an upper clamping electric actuator, a first guide unit, and a first floating joint; the upper clamping electric actuator is connected to the upper clamping plate through the first floating joint; the first guide unit includes an upper guide shaft, an upper guide seat, an upper linear bearing, and an upper parallel limiting plate; the upper guide seat is fixed on the upper clamping plate; one end of the upper guide shaft is fixedly connected to the upper guide seat; the other end of the upper guide shaft is connected to the upper parallel limiting plate; the upper linear bearing is sleeved on the surface of the upper guide shaft; the upper linear bearing is connected to a concave plate.

9. The flip-type core material appearance inspection mechanism according to claim 1, characterized in that: The lower clamping module includes a lower clamping plate, a lower clamping electric actuator, a second guide unit, a second floating joint, and a fixed base plate. The lower clamping electric actuator is connected to the lower clamping plate via the second floating joint. The second guide unit includes a lower guide shaft, a lower guide seat, a lower linear bearing, and a lower parallel limiting plate. The lower guide seat is fixed on the lower clamping plate. One end of the lower guide shaft is fixedly connected to the lower guide seat, and the other end of the lower guide shaft is connected to the lower parallel limiting plate. The lower linear bearing is sleeved on the surface of the lower guide shaft and is connected to the fixed base plate. The fixed base plate is located at the bottom of the friction roller conveyor line.

10. The flip-type core material appearance inspection mechanism according to claim 1, characterized in that: The synchronous belt alignment module includes a synchronous belt drive assembly, a clamping execution assembly, and a guide assembly. The synchronous belt drive assembly includes a synchronous belt, two synchronous pulleys, and a synchronous belt servo motor. One of the synchronous pulleys is mounted on the output end of the synchronous belt servo motor, and the synchronous belt is mounted on the two synchronous pulleys. The clamping execution assembly includes two alignment clamping plates, two synchronous belt clamping plates, and two clamping plate mounting plates. Both synchronous belt clamping plates are mounted on the synchronous belt, and both alignment clamping plates are fixed to the synchronous belt clamping plates by corresponding clamping plate mounting plates. The guide assembly includes a second slide rail and a third slider. The third slider is mounted on the second slide rail, and the alignment clamping plates are simultaneously fixed to the third slider and the synchronous belt clamping plates. The second slide rail, the other synchronous pulley, and the synchronous belt servo motor are all mounted on the movable parts of the lower clamping module.

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