Plate surface detection device and method for plate detection

Abstract

The invention discloses a plate surface detection device and method for plate detection, and relates to the technical field of plate detection, the plate surface detection device comprises a supporting rack, a fixed overturning structure arranged above the supporting rack and used for fixing and overturning a plate to be detected so as to facilitate double-sided detection of the plate to be detected, and a detection structure arranged above the fixed overturning structure and used for detecting the surface of the plate to be detected. According to the plate surface detection device for plate detection and the using method thereof, a fixed overturning structure is arranged, a laser sensor accurately captures the position of a plate, an anti-skid clamping block stably clamps the plate to prevent sliding damage, and a lifting overturning component cooperates with an adjusting toothed plate through a double-head motor and a gear shaft, so that the plate surface detection device for plate detection is convenient to operate. Stable lifting and accurate overturning of the plates are achieved, double-face detection switching, connection correction and detection links do not need to be completed manually, the detection position is stabilized, efficiency and comprehensiveness are improved, a foundation is laid for conveying and sorting of transmission rollers, and automatic and accurate operation of the device is facilitated.

Description

Technical Field

[0001] This invention relates to the field of plate inspection technology, specifically to a plate surface inspection device for plate inspection. Background Technology

[0002] Surface inspection of sheet materials is one of the core links in industrial quality control. Sheets are widely used in many fields such as construction, automobiles, and home appliances. Surface and internal defects (such as scratches, uneven material, and hidden cracks) are directly related to product performance and safety. Existing sheet material inspection devices have many problems such as single inspection dimensions, poor structural adaptability, and low degree of automation. Some devices rely solely on visual inspection, which makes it difficult to identify material composition defects or internal hidden dangers. Although some devices have flipping mechanisms, the accuracy of fixing and flipping is insufficient, which can easily cause sheet material displacement or damage. Moreover, there is a lack of coordinated control between functional modules, and the inspection process is relatively fragmented, requiring frequent manual intervention and adjustment, which reduces inspection efficiency and increases the risk of missed detections.

[0003] Taking the plate inspection device with authorization announcement numbers CN120101683A and CN120063085A as an example, although it has basic conveying and inspection components, it has obvious shortcomings in terms of full-dimensional inspection coverage, structural adaptability and automated collaboration. On the one hand, it lacks the combination of spectral pre-detection and eddy current detection, and cannot achieve synchronous identification of material composition and internal defects like the spectrometer and eddy current detector of this invention, resulting in a high rate of missed detection. On the other hand, the fixed flipping structure lacks precise lifting and flipping linkage (such as the lack of a dual-head motor and the collaborative design of the adjusting toothed plate), and the plate is prone to displacement when flipping. Moreover, the position of the detection structure is fixed, making it difficult to adapt to different sizes of plates. The sorting process relies on manual judgment and cannot achieve a fully automated closed loop.

[0004] As shown in the above equipment, although the existing sheet metal inspection device can achieve basic surface inspection, it does not have the precise clamping and 180° rotation capability of the fixed flipping structure for sheet metal (such as metal sheet, composite sheet, etc.) that requires double-sided inspection and multi-dimensional defect identification, which easily leads to incomplete inspection surfaces. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a surface inspection device for inspection boards, which solves the problems of existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a plate surface inspection device for plate inspection, comprising a support frame, and further comprising: A fixed flipping structure is provided above the support frame for fixing and flipping the inspection board to facilitate double-sided inspection of the inspection board. The inspection structure, located above the support frame, is used for reciprocating inspection of the surface of the inspection board. The straightening structure is located above the support frame and is used to center and align the inspection plates during transportation so that they can be fixed by the subsequent fixing and flipping structure. The tilting discharge structure is located on one side of the support frame and is used to tilt the test plates in different directions according to different test results. The fixed flipping structure includes an I-beam frame, which is fixedly installed on the outer wall of the support frame. A slide rail A is fixedly installed on the top of the I-beam frame. A flipping groove is opened on the outer wall of the I-beam frame. A rotation limiting groove is opened on the inner wall of the flipping groove. A laser sensor is fixedly installed on the outer wall of the I-beam frame. A lifting and flipping component is provided on the outer wall of the I-beam frame. A clamping and flipping component is provided on one side of the lifting and flipping component.

[0007] Preferably, the clamping and flipping component includes a connecting seat, which is disposed on one side of the I-beam frame. One end of the connecting seat is fixedly connected to a housing. The outer wall of the housing is provided with a through groove, and the inner wall of the through groove is provided with a placement groove. The inner wall of the placement groove is provided with a clamping component.

[0008] Preferably, the clamping assembly includes a concave seat, which is fixedly installed inside the placement groove. A protective slide cylinder is fixedly connected to one end of the concave seat. A sensing cylinder is fixedly installed on the inner wall of the protective slide cylinder. A hinged concave plate is fixedly connected to one end of the sensing cylinder. An arc-shaped plate is hinged to the inner wall of the hinged concave plate. A hinged sleeve is hinged to the other end of the arc-shaped plate. A fixed hinge seat is hinged to one end of the hinged sleeve. The fixed hinge seat is fixedly installed on the inner wall of the concave seat. An anti-slip clamping block is fixedly connected to the outer wall of the hinged sleeve.

[0009] Preferably, the lifting and tilting component includes a groove frame, which is fixedly installed on the outer wall of the I-beam frame by bolts. A double-headed motor is fixedly connected to the bottom end of the groove frame. A bevel gear shaft is fixedly connected to the output end of the double-headed motor through a coupling. A driven bevel gear meshes with the outer wall of the bevel gear shaft. The driven bevel gear is rotatably connected to the bottom end of the groove frame. A screw is fixedly connected to one end of the driven bevel gear. A movable plate is threadedly connected to the outer wall of the screw. A gear shaft is rotatably connected to one end of the movable plate. One end of the gear shaft is fixedly connected to a connecting seat. An adjusting gear plate is fixedly connected to the outer wall of the groove frame.

[0010] Preferably, the detection structure includes a base plate, a positioning slide plate is fixedly connected to the lower part of the base plate, the positioning slide plate is slidably connected to the outer wall of the slide rail A, the outer wall of the positioning slide plate has a screw hole for fixing the detection structure to the outer wall of the slide rail A by means of bolts, a drive motor is fixedly connected to the outer wall of the base plate, the output end of the drive motor is fixedly connected to a lead screw through a coupling, the outer wall of the lead screw is threadedly connected to a mounting carriage, a slide plate is fixedly connected to the top of the base plate, a rectangular slide groove is formed on the outer wall of the base plate for limiting the movement of the mounting carriage, a relay is fixedly connected to the outer wall of the mounting carriage, a machine vision detector is fixedly connected to the output end of the relay, and an eddy current detector is fixedly connected to the output end of the relay.

[0011] Preferably, the correction structure includes a mounting base, which is fixedly mounted on the top of the support frame. A convex plate is fixedly mounted on the outer wall of the mounting base. A hydraulic cylinder is fixedly connected to the outer wall of the convex plate. A slide rail B is fixedly mounted on the outer wall of the convex plate. An adjusting frame is slidably connected to the outer wall of the slide rail B. One end of the hydraulic cylinder is fixedly connected to the outer wall of the adjusting frame. A connecting rod is rotatably connected to the top of the adjusting frame. A crank rocker arm is hinged to the other end of the connecting rod. A rotating frame is rotatably connected to the inner wall of the adjusting frame. An alignment frame is fixedly connected to the bottom end of the rotating frame. A limit rod is fixedly connected to the bottom end of the adjusting frame for limiting the rotation of the alignment frame.

[0012] Preferably, the tilting discharge structure includes a support plate, which is fixedly installed at one end of the support frame. A support seat is fixedly installed on the outer wall of the support plate. A semi-circular placement groove is opened on the outer wall of the support seat. A fixed sliding sleeve is fixedly connected to the top of the support seat. A limiting slide is fixedly connected inside the fixed sliding sleeve. A double-rod cylinder is fixedly connected to one end of the limiting slide. A hinge block is fixedly connected to the outer wall of the support plate. A crank rod is rotatably connected to the outer wall of the hinge block. A tilting frame is hinged to the outer wall of the crank rod. A limiting post is fixedly connected to the outer wall of the tilting frame. A conveying roller is fixedly connected to the outer wall of the tilting frame.

[0013] Preferably, a PLC control console is fixedly installed on the outer wall of the support frame, a transport module is provided on the outer wall of the support frame, and a transmission roller device is provided on the inner wall of the support frame.

[0014] Preferably, a mounting frame is fixedly installed on the outer wall of the support frame by bolts, and a spectrometer is fixedly installed on the outer wall of the mounting frame.

[0015] Preferably, the transport module includes a servo motor, which is fixedly installed on the outer wall of the support frame. The servo motor is fixedly connected to a drive roller via a coupling. A conveyor belt body is sleeved on the outer wall of the drive roller. A side guide plate is fixedly connected to the outer wall of the conveyor belt body. A driven roller is connected to the drive roller via the conveyor belt body. A cylinder tensioner is fixedly connected to one end of the driven roller.

[0016] This invention also discloses a surface inspection device for inspection boards and a method for using the device, specifically including the following steps: Step 1: Start the transport module and perform pre-detection with the spectrometer. Start the servo motor of the transport module through the PLC control console. The servo motor drives the active roller to rotate, so that the conveyor belt transports the board to be tested. At the same time, the spectrometer on the mounting frame is started. During the process of the board being transported with the conveyor belt, the surface spectrum of the board is analyzed to identify material defects or abnormal composition. The side guide plate of the conveyor belt assists in guiding the board, and the cylinder tensioner keeps the conveyor belt taut. Step 2: Centering and straightening the sheet metal. When the sheet metal is transported to the straightening structure, the hydraulic cylinder receives a PLC command and starts, pushing the adjusting frame to slide along slide rail B. When the adjusting frame moves, the connecting rod drives the crank rocker to rotate, which in turn causes the rotating frame to rotate under the constraint of the limit rod. The alignment frame centers and aligns the sheet metal from both sides, ensuring that the sheet metal can accurately enter the working area of ​​the fixed flipping structure. Step 3: After laser detection and clamping correction of the fixed flipping structure, the plate continues to be transported by the transport module. When it passes through the through slot of the clamping flipping component, the laser sensor detects the plate and sends a signal to the PLC console. Subsequently, the PLC console starts the induction cylinder to push the hinged concave plate to move. Through the hinge transmission of the arc plate, hinged sleeve and fixed hinge seat, the anti-slip clamping block clamps the plate from both sides, completing the fixation of the plate. Step 4: The inspection structure inspects the first surface of the board. The PLC control console starts the drive motor of the inspection structure, and its output drives the lead screw to rotate through the coupling. The rotation of the lead screw causes the mounting carriage to reciprocate linearly along the slide plate and the rectangular slide. The PLC control console sends a signal to the relay on the mounting carriage. The relay controls the machine vision detector to perform visual defect detection on the first surface of the board. At the same time, the eddy current detector performs eddy current flaw detection on the first surface of the board. If the inspection position needs to be adjusted, it can be achieved by sliding the positioning slide plate on the slide rail A and fixing it with bolts. Step 5: After the first side of the board is inspected, the PLC console receives a signal and then starts the double-head motor of the lifting and flipping component, which drives the bevel gear shaft to rotate. The driven bevel gear meshes with the screw, causing the moving plate to move. At the same time, the gear shaft rolls and rotates along the adjusting tooth plate, causing the clamping and flipping component to lift and flip the board at a certain angle, so that the second side of the board faces the inspection structure. Step Six: Inspect the second side of the board. After the board is flipped into place, repeat the actions in Step Four. After the inspection is completed, the PLC console receives the signal and starts the drive motor to drive the mounting slide to move back and forth. The machine vision detector and eddy current detector inspect the second side of the board. Step 7: After the second side of the plate is inspected by the transmission roller device, the induction cylinder of the clamping component is reset, the anti-slip clamp releases the plate, and the plate falls onto the transmission roller device; the transmission roller device is started to convey the plate to the flipping discharge structure. Step 8: After the flipping discharge structure, in conjunction with the transport module, sorts and delivers the sheet metal to the conveyor rollers of the flipping discharge structure based on the detection results, the PLC control console instructs the double-rod cylinder to operate according to the detection results. The double-rod cylinder pushes the limit slide to move, and in conjunction with the hinged transmission between the crank and the flipping frame, the flipping frame tilts in different directions along the hinge block, and finally the sheet metal is sorted and discharged according to the detection results through the conveyor rollers. Step Nine: During the entire coordination process by the PLC console, the PLC console receives signals from the laser sensor and various detectors throughout the process, and coordinates the timing of actions of the transport module, spectrometer, correction structure, fixed flipping structure, detection structure, transmission roller device, and flipping discharge structure to ensure automated connection and operation of each link. The PLC console is electrically connected to the above-mentioned components such as the servo motor, spectrometer, laser sensor, induction cylinder, dual-head motor, drive motor, machine vision detector, eddy current detector, hydraulic cylinder, and double-rod cylinder of the transport module.

[0017] This invention provides a surface inspection device for sheet metal. Compared with the prior art, it has the following advantages: 1. The plate surface inspection device and its usage method are equipped with a fixed flipping structure. Its laser sensor accurately captures the position of the plate, and the anti-slip clamping block of the clamping component firmly holds the plate to prevent slippage or damage to the surface during inspection and flipping. The lifting and flipping component achieves smooth lifting and accurate flipping of the plate through the cooperation of a double-head motor, gear shaft and adjusting tooth plate. Double-sided inspection switching can be completed without manual intervention. This structure connects the correction and inspection links, ensures stable inspection position, improves inspection efficiency and comprehensiveness, lays the foundation for the conveying and sorting of the transmission roller device, and helps the device to operate automatically and accurately.

[0018] 2. The plate surface inspection device and its usage method are equipped with an inspection structure. The base plate provides a stable installation reference. The drive motor, in conjunction with the lead screw, drives the mounting carriage to move smoothly back and forth along the slide plate and rectangular slide, achieving full coverage scanning of the plate surface. The relay controls the machine vision detector and the eddy current detector to work synchronously, complementarily identifying visual defects and internal hidden dangers, ensuring no omissions in the inspection. The positioning slide can be adjusted along the slide rail A to adapt to different sized plates. Its automated reciprocating inspection design meets the double-sided inspection requirements of the fixed flipping structure, greatly improving inspection efficiency and accuracy, and providing reliable data support for subsequent sorting.

[0019] 3. The board surface inspection device and its operating method are equipped with a tilting discharge structure. The support plate and support base provide stable support, ensuring structural stability during the sorting process. The double-rod cylinder, together with the limit slide and crank, drives the tilting frame to tilt precisely along the hinge block. It can sort qualified and unqualified boards according to the inspection results. The conveyor roller reduces board friction, and the limit column prevents excessive tilting to protect the board. This structure is connected to the transmission roller device to realize smooth transfer and sorting of boards after inspection without manual intervention, improving the overall automation efficiency, providing reliable guarantee for the closed-loop operation of the device, and ensuring accurate and efficient sorting. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is a front view of the fixed flip structure of the present invention; Figure 4 This is a side view of the fixed flip structure of the present invention; Figure 5 This is a schematic diagram of the clamping and flipping component of the present invention; Figure 6 This is a cross-sectional view of the clamping assembly of the present invention; Figure 7 This is a schematic diagram of the lifting and flipping component of the present invention; Figure 8 This is a schematic diagram of the detection structure of the present invention; Figure 9 This is a bottom view of the detection structure of the present invention; Figure 10 This is a schematic diagram of the correction structure of the present invention; Figure 11 This is an exploded view of the flipping discharge structure of the present invention.

[0021] In the diagram: 1. Support frame; 2. PLC control console; 3. Transport module; 4. Mounting frame; 5. Spectrometer; 6. Fixed flipping structure; 61. I-beam frame; 62. Slide rail A; 63. Flipping chute; 64. Rotation limit groove; 65. Laser sensor; 66. Clamping flipping component; 661. Connecting seat; 662. Housing; 663. Through groove; 664. Mounting groove; 665. Clamping assembly; 6651. Concave seat; 6652. Induction cylinder; 6653. Hinge concave plate; 6654. Arc plate; 6655. Fixed hinge seat; 6656. Hinge sleeve; 6657. Anti-slip clamp; 67. Lifting flipping component; 671. Groove frame; 672. Double-headed motor; 673. Bevel gear shaft; 674. Driven bevel gear; 675. Screw; 676. Moving plate; 677 6. Gear shaft; 7. Adjusting gear plate; 7. Detection structure; 7. Base plate; 7. Slide plate; 7. Lead screw; 7. Drive motor; 7. Mounting slide; 7. Relay; 7. Machine vision detector; 7. Eddy current detector; 7. Positioning slide; 7. Rectangular slide; 8. Correction structure; 8. Mounting base; 8. Convex plate; 8. Hydraulic cylinder; 8. Slide rail B; 8. Adjusting frame; 8. Crank rocker arm; 8. Connecting rod; 8. Rotating frame; 8. Alignment frame; 8. Limiting rod; 9. Tilting discharge structure; 9. Support plate; 9. Support seat; 9. Fixed slide sleeve; 9. Limiting slide; 9. Double rod cylinder; 96. Hinge block; 97. Crank rod; 98. Tilting frame; 99. Limiting post; 910. Conveying roller; 10. Transmission roller device. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] See Figures 1-11 The present invention provides the following two technical solutions: First embodiment: A plate surface inspection device for inspection, including a support frame 1, and further including: Fixed flipping structure 6 is set above the support frame 1 and is used to fix and flip the inspection board so as to facilitate double-sided inspection of the inspection board. The detection structure 7 is located above the support frame 1 and is used for reciprocating detection of the surface of the inspection board. The straightening structure 8 is set above the support frame 1 and is used to center and align the inspection board during transportation so that the subsequent fixing and flipping structure 6 can fix it. The tilting discharge structure 9 is set on one side of the support frame 1 and is used to tilt the test plate in different directions according to different test results. The fixed flipping structure 6 includes a frame 61, which is fixedly installed on the outer wall of the support frame 1. A slide rail A62 is fixedly installed on the top of the frame 61. A flipping groove 63 is opened on the outer wall of the frame 61. A rotation limiting groove 64 is opened on the inner wall of the flipping groove 63. A laser sensor 65 is fixedly installed on the outer wall of the frame 61. A lifting and flipping component 67 is provided on the outer wall of the frame 61. A clamping and flipping component 66 is provided on one side of the lifting and flipping component 67.

[0024] Laser sensor 65 detects whether the board has reached the designated clamping position, accurately identifies the board position and sends a signal to PLC control console 2 to trigger subsequent clamping actions, thus avoiding clamping timing deviations.

[0025] The clamping and flipping component 66 includes a connecting seat 661, which is disposed on one side of the I-frame 61. One end of the connecting seat 661 is fixedly connected to a housing 662. The outer wall of the housing 662 is provided with a through groove 663, and the inner wall of the through groove 663 is provided with a placement groove 664. The inner wall of the placement groove 664 is provided with a clamping component 665.

[0026] The through groove 663 provides a passage for the board material, guiding the corrected board material to accurately enter the clamping area and ensuring that the board material and the anti-slip clamp 6657 are accurately aligned.

[0027] The clamping assembly 665 includes a concave seat 6651, which is fixedly installed inside the mounting groove 664. A protective slide is fixedly connected to one end of the concave seat 6651. A sensing cylinder 6652 is fixedly installed on the inner wall of the protective slide. A hinged concave plate 6653 is fixedly connected to one end of the sensing cylinder 6652. An arc-shaped plate 6654 is hinged to the inner wall of the hinged concave plate 6653. A hinged sleeve 6656 is hinged to the other end of the arc-shaped plate 6654. A fixed hinge seat 6655 is hinged to one end of the hinged sleeve 6656. The fixed hinge seat 6655 is fixedly installed on the inner wall of the concave seat 6651. An anti-slip clamping block 6657 is fixedly connected to the outer wall of the hinged sleeve 6656.

[0028] The concave seat 6651 mounts the induction cylinder 6652 and the fixed hinge seat 6655, providing a stable mounting base for the clamping components and ensuring the structural strength of the clamping action.

[0029] The induction cylinder 6652 outputs linear driving force to push the hinged concave plate 6653 to move, providing the core power for the clamping action.

[0030] The hinged concave plate 6653 transmits the power of the sensing cylinder 6652, which drives the arc plate 6654 to perform a linkage action, thereby realizing the opening and closing of the clamping block.

[0031] The arc-shaped plate 6654 changes the direction and amplitude of force transmission, transforming the linear motion of the hinged concave plate 6653 into the clamping motion of the hinged sleeve 6656, thus amplifying the clamping force.

[0032] The fixed hinge seat 6655 provides a fixed hinge fulcrum for the hinge sleeve 6656, ensuring that the hinge sleeve 6656 rotates along a fixed trajectory and ensuring clamping accuracy.

[0033] The hinged clamp 6656 connects the arc-shaped plate 6654 and the anti-slip clamp 6657, driving the anti-slip clamp 6657 to move synchronously, thereby achieving a ring-shaped clamping of the plate.

[0034] The anti-slip clamp 6657 directly contacts and clamps the board. The anti-slip texture on the surface increases the friction with the board, preventing the board from sliding or damaging the surface after clamping, and ensuring the stability of the board position during subsequent testing and flipping.

[0035] The lifting and tilting component 67 includes a groove frame 671, which is fixedly installed on the outer wall of the I-beam frame 61 by bolts. A double-head motor 672 is fixedly connected to the bottom end of the groove frame 671. The output end of the double-head motor 672 is fixedly connected to a bevel gear shaft 673 through a coupling. A driven bevel gear 674 meshes with the outer wall of the bevel gear shaft 673. The driven bevel gear 674 is rotatably connected to the bottom end of the groove frame 671. A screw 675 is fixedly connected to one end of the driven bevel gear 674. A moving plate 676 is threadedly connected to the outer wall of the screw 675. A gear shaft 677 is rotatably connected to one end of the moving plate 676. One end of the gear shaft 677 is fixedly connected to a connecting seat 661. An adjusting toothed plate 678 is fixedly connected to the outer wall of the groove frame 671.

[0036] The dual-head motor 672 provides bidirectional power output and simultaneously drives the bevel gear shafts 673 on both sides to rotate, ensuring balanced power for lifting and tilting actions.

[0037] The bevel gear shaft 673 transmits power to the dual-head motor 672. By meshing with the driven bevel gear 674, it changes the direction of power transmission, converting horizontal rotation into vertical rotation.

[0038] Driven bevel gear 674 connects bevel gear shaft 673 and screw 675, receiving power from bevel gear shaft 673 and transmitting it to screw 675, thus achieving smooth power conversion.

[0039] The screw 675 transmits power to the driven bevel gear 674, which is converted into the vertical lifting and lowering motion of the moving plate 676 through rotational motion, thereby raising or lowering the plate.

[0040] The movable plate 676 is equipped with the gear shaft 677 and drives it to rise and fall, which in turn drives the clamping and flipping component 66 and the plate to rise and fall, leaving enough space for the flipping action.

[0041] The gear shaft 677 connects the movable plate 676 and the connecting seat 661. When it rolls along the adjusting gear plate 678, it rotates, which drives the clamping and flipping component 66 and the plate to flip.

[0042] Adjust the gear plate 678 to mesh with the gear shaft 677, and control the rotation angle of the gear shaft 677 through the meshing of the tooth surfaces to ensure that the plate is accurately flipped 180° so that the second side faces the detection structure 7.

[0043] The connecting seat 661 connects the gear shaft 677 and the housing 662, transmitting the rotational power of the gear shaft 677, which drives the entire clamping and rotating component 66 and the plate to rotate synchronously.

[0044] The outer casing 662 protects the internal clamping assembly 665, preventing dust and impurities from entering and affecting the operation of the clamping components, thus extending the service life of the equipment.

[0045] The mounting slot 664 is used to install the clamping assembly 665, providing a fixed installation space for the clamping assembly 665 and ensuring that the layout of each clamping component is reasonable and the movement is coordinated.

[0046] The detection structure 7 includes a base plate 71. A positioning slide plate 79 is fixedly connected to the lower part of the base plate 71. The positioning slide plate 79 is slidably connected to the outer wall of the slide rail A62. The outer wall of the positioning slide plate 79 has a screw hole for fixing the detection structure 7 to the outer wall of the slide rail A62 by means of bolts. A drive motor 74 is fixedly connected to the outer wall of the base plate 71. A lead screw 73 is fixedly connected to the output end of the drive motor 74 through a coupling. A mounting carriage 75 is threadedly connected to the outer wall of the lead screw 73. A slide plate 72 is fixedly connected to the top of the base plate 71. A rectangular slide groove 710 is opened on the outer wall of the base plate 71 for limiting the movement of the mounting carriage 75. A relay 76 is fixedly connected to the outer wall of the mounting carriage 75. A machine vision detector 77 is fixedly connected to the output end of the relay 76. An eddy current detector 78 is fixedly connected to the output end of the relay 76.

[0047] The substrate 71 mounts all components of the detection structure 7, providing a unified mounting reference for the detection components, ensuring that the relative positions of each component are fixed, and improving detection accuracy.

[0048] The slide plate 72 provides a top sliding guide for the mounting carriage 75, and works with the rectangular slide groove 710 to limit the movement trajectory of the mounting carriage 75 and prevent deviation during the detection process.

[0049] The lead screw 73 transmits power to the drive motor 74, which is converted into linear reciprocating motion of the slide 75 through rotational motion, thereby achieving full coverage detection of the detection components.

[0050] The drive motor 74 provides power output, driving the lead screw 73 to rotate precisely, controlling the moving speed and stroke of the mounting carriage 75, and adapting to the inspection of plates of different sizes.

[0051] The slide 75 is equipped with a relay 76, a machine vision detector 77, and an eddy current detector 78, which drive the detection instrument to move back and forth synchronously, thereby achieving comprehensive scanning and detection of the surface of the board.

[0052] Relay 76 controls the start and stop of machine vision detector 77 and eddy current detector 78, enabling the two detection methods to operate synchronously, thereby improving detection efficiency and comprehensiveness.

[0053] The machine vision detector 77 captures and analyzes images of the board surface, accurately identifying visual defects such as scratches, dents, and stains on the board surface, and outputs intuitive detection results.

[0054] The eddy current detector 78 detects the surface and near-surface of the board through the eddy current effect, and identifies defects that are not visible to the naked eye, such as internal cracks and material porosity, thus making up for the limitations of visual inspection.

[0055] The positioning slide plate 79 connects the detection structure 7 and the slide rail A62. The overall position of the detection structure 7 can be adjusted by sliding to adapt to the detection requirements of different width plates. After adjustment, the position is fixed by bolts to ensure stability.

[0056] The rectangular slide groove 710 provides a bottom sliding limit for the mounting slide 75. It works in conjunction with the slide plate 72 to ensure that the mounting slide 75 moves smoothly and to prevent the detection instrument from shaking and affecting the detection accuracy.

[0057] A PLC control console 2 is fixedly installed on the outer wall of the support frame 1. A transport module 3 is provided on the outer wall of the support frame 1. A transmission roller device 10 is provided on the inner wall of the support frame 1. A mounting frame 4 is fixedly installed on the outer wall of the support frame 1 by bolts. A spectrometer 5 is fixedly installed on the outer wall of the mounting frame 4.

[0058] The PLC control console 2 sends a start command to control the transport module 3 and the spectrometer 5 to operate synchronously, thereby achieving automated start-up of the device and ensuring that all pre-detection stages are started in tandem.

[0059] The mounting bracket 4 secures the spectrometer 5, providing stable support for its installation and preventing instrument shaking during testing from affecting detection accuracy.

[0060] The spectrometer 5 analyzes the spectral information reflected from the surface of the board, which can identify potential defects such as uneven material and abnormal composition in advance, and provide a basis for subsequent accurate detection.

[0061] The transmission roller device 10 receives the plate released by the clamping assembly 665 and conveys it to the flipping discharge structure 9, so as to realize the smooth transition of the plate from the detection area to the sorting area, avoid the plate falling or being damaged by bumps, and ensure smooth conveying.

[0062] The transport module 3 includes a servo motor, which is fixedly installed on the outer wall of the support frame 1. The servo motor is fixedly connected to a drive roller via a coupling. The outer wall of the drive roller is fitted with a conveyor belt body. The outer wall of the conveyor belt body is fixedly connected with a side guide plate. The drive roller is connected to a driven roller via the conveyor belt body. One end of the driven roller is fixedly connected to a cylinder tensioner.

[0063] The servo motor provides power output, driving the drive roller to rotate precisely, ensuring that the conveyor belt speed is stable and controllable.

[0064] The active roller transmits power from the servo motor, driving the conveyor belt to move along a fixed track, thus achieving continuous conveying of the sheet material.

[0065] The conveyor belt carries the sheet material to be tested and smoothly transports it to the subsequent correction and testing stages, preventing the sheet material from shifting during the transportation process.

[0066] The side guide plate provides lateral restraint to the conveyed sheet material, guiding it to remain in the center area of ​​the conveyor belt, laying the foundation for subsequent centering and correction.

[0067] The cylinder tensioner adjusts the tension of the conveyor belt to prevent the conveyor belt from becoming loose and causing the sheet material to jam, thus ensuring smooth conveying.

[0068] The second embodiment differs from the first embodiment in that the correction structure 8 includes a mounting base 81, which is fixedly mounted on the top of the support frame 1. A convex plate 82 is fixedly mounted on the outer wall of the mounting base 81. A hydraulic cylinder 83 is fixedly connected to the outer wall of the convex plate 82. A slide rail B84 is fixedly mounted on the outer wall of the convex plate 82. An adjusting frame 85 is slidably connected to the outer wall of the slide rail B84. One end of the adjusting frame 85 is fixedly connected to the outer wall of the hydraulic cylinder 83. A connecting rod 87 is rotatably connected to the top of the adjusting frame 85. A crank rocker arm 86 is hinged to the other end of the connecting rod 87. A rotating frame 88 is rotatably connected to the inner wall of the adjusting frame 85. An alignment frame 89 is fixedly connected to the bottom end of the rotating frame 88. A limit rod 810 is fixedly connected to the bottom end of the adjusting frame 85 for limiting the rotation of the alignment frame 89.

[0069] Mounting base 81 secures the entire component of the straightening structure 8, firmly installing the straightening structure 8 on the top of the support frame 1 to ensure that the structure does not shift during the straightening process.

[0070] The convex plate 82 is used to mount the hydraulic cylinder 83 and the slide rail B84, providing a unified mounting reference for the power components and sliding components to ensure coordinated operation.

[0071] The hydraulic cylinder 83 outputs linear thrust, driving the adjusting frame 85 to move precisely along the slide rail B84, providing power for the correction action.

[0072] The slide rail B84 provides a sliding guide for the adjustment frame 85, restricting the movement trajectory of the adjustment frame 85 and preventing deviation that could lead to correction failure.

[0073] The adjusting frame 85 transmits power from the hydraulic cylinder 83, connects the connecting rod 87 and the rotating frame 88, and drives the subsequent transmission components to move synchronously, thereby achieving precise control of the correction amplitude.

[0074] The crank rocker arm 86 changes the direction of force transmission and, in conjunction with the connecting rod 87, converts the linear motion of the adjusting frame 85 into the rotational motion of the rotating frame 88.

[0075] The connecting rod 87 connects the adjusting frame 85 and the crank rocker arm 86 to achieve smooth power transmission and ensure the continuous operation of the rotating frame 88.

[0076] The rotating frame 88 drives the alignment frame 89 to rotate, and the angle of the alignment frame 89 can be adjusted by rotating it to adapt to the straightening needs of boards of different widths.

[0077] The alignment frame 89 directly contacts both sides of the board and pushes and corrects the offset board from both sides, so that the board is in the center position.

[0078] The limiting rod 810 restricts the rotation angle of the rotating frame 88 to prevent the alignment frame 89 from rotating excessively and squeezing the plate, thus protecting the plate from damage.

[0079] The third embodiment differs from the first and second embodiments in that: the tilting discharge structure 9 includes a support plate 91, which is fixedly installed at one end of the support frame 1. A support seat 92 is fixedly installed on the outer wall of the support plate 91. A semi-circular placement groove is opened on the outer wall of the support seat 92. A fixed sliding sleeve 93 is fixedly connected to the top of the support seat 92. A limiting slide 94 is fixedly connected inside the fixed sliding sleeve 93. A double-rod cylinder 95 is fixedly connected to one end of the limiting slide 94. A hinge block 96 is fixedly connected to the outer wall of the support plate 91. A crank rod 97 is rotatably connected to the outer wall of the hinge block 96. A tilting frame 98 is hinged to the outer wall of the crank rod 97. A limiting post 99 is fixedly connected to the outer wall of the tilting frame 98. A conveying roller 910 is fixedly connected to the outer wall of the tilting frame 98.

[0080] The support plate 91 fixes the entire component of the flipping discharge structure 9, and securely installs the sorting structure at one end of the support frame 1 to ensure structural stability during the sorting process.

[0081] The support base 92 provides auxiliary support for the fixed sliding sleeve 93, enhancing the installation strength of the fixed sliding sleeve 93 and preventing it from deforming under stress.

[0082] The fixed slide 93 is used to install the limiting slide 94, which provides sliding guidance for the limiting slide 94 and ensures its accurate movement trajectory.

[0083] The limiting slide 94 transmits power to the double-rod cylinder 95, connects to the crank 97, and drives the crank 97 to move synchronously, providing power for the tilting of the tilting frame 98.

[0084] The double-rod cylinder 95 outputs linear thrust, which, according to the instructions of the PLC control console 2, pushes the limit slide 94 to move the corresponding stroke, controlling the tilting direction and angle of the tilting frame 98.

[0085] The hinge block 96 provides a fixed hinge fulcrum for the tilting frame 98, ensuring that the tilting frame 98 rotates along a fixed axis and that the tilting sorting action is precise and controllable.

[0086] The crank lever 97 connects the limiting slide 94 and the tilting frame 98, converting the linear motion of the limiting slide 94 into the rotational motion of the tilting frame 98, thereby achieving the tilting action.

[0087] The flipping frame 98 carries the boards and enables tilt sorting. Based on the test results, it tilts in different directions to send qualified and unqualified boards to different areas.

[0088] The limiting post 99 restricts the tilt angle of the flipping frame 98 to prevent the flipping frame 98 from tilting too much and causing the board to slip too quickly, thus ensuring a smooth sorting process.

[0089] The conveyor roller 910 assists the plate to move on the tilting frame 98. By rolling, the friction between the plate and the tilting frame 98 is reduced, allowing the plate to slide out smoothly and avoiding surface wear.

[0090] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0091] This invention also discloses a surface inspection device for inspection boards and a method for using the device, specifically including the following steps: Step 1: Start the transport module 3 and spectrometer 5 for pre-detection. Start the servo motor of transport module 3 through PLC control console 2. The servo motor drives the active roller to rotate, so that the conveyor belt body transports the board to be tested. At the same time, the spectrometer 5 on the mounting frame 4 is started. During the process of the board being transported with the conveyor belt, the surface spectrum of the board is analyzed to identify material defects or abnormal composition. The side guide plate of the conveyor belt assists in guiding the board, and the cylinder tensioner keeps the conveyor belt taut. Step 2: Centering and straightening the plate in the straightening structure 8. When the plate is transported to the straightening structure 8, the hydraulic cylinder 83 receives the PLC command and starts, pushing the adjusting frame 85 to slide along the slide rail B84. When the adjusting frame 85 moves, the connecting rod 87 drives the crank rocker 86 to rotate, which in turn causes the rotating frame 88 to rotate under the constraint of the limit rod 810. The alignment frame 89 centers and aligns the plate from both sides, ensuring that the plate can accurately enter the working area of ​​the fixed flipping structure 6 in the future. Step 3: After laser detection and clamping correction of the fixed flipping structure 6, the plate continues to be transported by the transport module 3. When it passes through the through slot 663 of the clamping flipping component 66, the laser sensor 65 detects the plate and sends a signal to the PLC console 2. Subsequently, the PLC console 2 starts the induction cylinder 6652 to push the hinged concave plate 6653 to move. Through the hinge transmission of the arc plate 6654, the hinged sleeve 6656 and the fixed hinge seat 6655, the anti-slip clamp 6657 clamps the plate from both sides, completing the fixation of the plate. Step 4: The detection structure 7 inspects the first surface of the board. The PLC control console 2 starts the drive motor 74 of the detection structure 7, and its output drives the lead screw 73 to rotate through the coupling. The rotation of the lead screw 73 causes the mounting carriage 75 to reciprocate linearly along the slide plate 72 and the rectangular slide 710. The PLC control console 2 sends a signal to the relay 76 on the mounting carriage 75. The relay 76 controls the machine vision detector 77 to perform visual defect detection on the first surface of the board. At the same time, the eddy current detector 78 performs eddy current flaw detection on the first surface of the board. If the detection position needs to be adjusted, it can be achieved by sliding the positioning slide plate 79 on the slide rail A62 and fixing it with bolts. Step 5: After the first side of the plate is inspected, the PLC console 2 receives a signal and then starts the double-head motor 672 of the lifting and flipping component 67, which drives the bevel gear shaft 673 to rotate. The driven bevel gear 674 meshes with the screw 675 to rotate, thereby driving the moving plate 676 to move. At the same time, the gear shaft 677 rolls and rotates along the adjusting gear plate 678, causing the clamping and flipping component 66 to lift and flip the plate 180°, so that the second side of the plate faces the inspection structure 7. Step 6: Detection structure 7 detects the second side of the board. After the board is flipped into place, repeat the action of step 4. After the detection is completed, PLC console 2 receives the signal and starts drive motor 74 to drive the mounting slide 75 to move back and forth. Machine vision detector 77 and eddy current detector 78 detect the second side of the board. Step 7: After the second side of the plate is inspected by the transmission roller device 10, the induction cylinder 6652 of the clamping component 665 is reset, the anti-slip clamp 6657 releases the plate, and the plate falls onto the transmission roller device 10; the transmission roller device 10 is started to convey the plate to the flipping discharge structure 9. Step 8: After the flipping discharge structure 9, in conjunction with the transport module 3, sorts and delivers the sheet metal to the conveyor roller 910 of the flipping discharge structure 9 according to the detection results, the PLC control console 2 instructs the double-rod cylinder 95 to operate according to the detection results; the double-rod cylinder 95 pushes the limit slide 94 to move, and in conjunction with the hinge transmission between the crank rod 97 and the flipping frame 98, the flipping frame 98 tilts in different directions along the hinge block 96, and finally the sheet metal is sorted and discharged according to the detection results through the conveyor roller 910; Step Nine: During the entire coordination process of PLC console 2, PLC console 2 receives signals from laser sensor 65 and various detectors throughout the process, and coordinates the action sequence of transport module 3, spectrometer 5, correction structure 8, fixed flipping structure 6, detection structure 7, transmission roller device 10, and flipping discharge structure 9 to ensure the automated connection and operation of each link. PLC console 2 is electrically connected to the above-mentioned components such as servo motor, spectrometer 5, laser sensor 65, induction cylinder 6652, dual-head motor 672, drive motor 74, machine vision detector 77, eddy current detector 78, hydraulic cylinder 83, and double rod cylinder 95 of the transport module.

[0092] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0093] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plate surface inspection apparatus for a plate inspection machine, comprising a support frame (1), characterized in that, Also include: The fixed turnover structure (6) is arranged above the support rack (1), which is used for the fixation and turnover of the detection plate material, so as to facilitate the double-sided detection of the detection plate material; The detection structure (7) is arranged above the support rack (1), which is used for the reciprocating detection of the surface of the detection plate material; The correction structure (8) is arranged above the support rack (1), which is used for the center correction alignment of the detection plate material in the transportation process, so as to facilitate the fixation of the subsequent fixed turnover structure (6); The turnover discharge structure (9) is arranged on one side of the support rack (1), which is used for the inclined discharge of the detection plate material in different directions according to different detection results; The fixed turnover structure (6) includes a work type frame (61), which is fixedly installed on the outer wall of the support rack (1), and the top end of the work type frame (61) is fixedly installed with a sliding rail A (62), the outer wall of the work type frame (61) is provided with a turnover sliding groove (63), the inner wall of the turnover sliding groove (63) is provided with a rotating limiting groove (64), the outer wall of the work type frame (61) is fixedly installed with a laser sensor (65), and the outer wall of the work type frame (61) is provided with a lifting turnover part (67), one side of the lifting turnover part (67) is provided with a clamping turnover part (66).

2. The plate surface inspection apparatus for an inspection plate according to claim 1, characterized by: The clamping turnover part (66) includes a connecting seat (661), which is arranged on one side of the work type frame (61), one end of the connecting seat (661) is fixedly connected with an outer shell (662), the outer wall of the outer shell (662) is provided with a through groove (663), the inner wall of the through groove (663) is provided with a placing groove (664), and the inner wall of the placing groove (664) is provided with a clamping assembly (665).

3. The plate surface inspection apparatus for an inspection plate according to claim 2, characterized by: The clamping assembly (665) includes a concave seat (6651), which is fixedly installed in the inner wall of the placing groove (664), one end of the concave seat (6651) is fixedly connected with a protective sliding cylinder, the inner wall of the protective sliding cylinder is fixedly installed with a sensing air cylinder (6652), one end of the sensing air cylinder (6652) is fixedly connected with a hinged concave plate (6653), the inner wall of the hinged concave plate (6653) is hinged with an arc plate (6654), the other end of the arc plate (6654) is hinged with a hinged clamp sleeve (6656), one end of the hinged clamp sleeve (6656) is hinged with a fixed hinge seat (6655), the fixed hinge seat (6655) is fixedly installed on the inner wall of the concave seat (6651), and the outer wall of the hinged clamp sleeve (6656) is fixedly connected with an anti-skid clamp block (6657).

4. The plate surface inspection apparatus for an inspection plate according to claim 1, characterized by: The lifting and overturning part (67) comprises a groove frame (671) which is fixedly installed on the outer wall of the channel frame (61) through bolts, the bottom end of the groove frame (671) is fixedly connected with a double-head motor (672), the output end of the double-head motor (672) is fixedly connected with a bevel gear shaft (673) through a shaft coupling, the outer wall of the bevel gear shaft (673) is engaged with a driven bevel gear (674), the driven bevel gear (674) is rotatably connected to the bottom end of the groove frame (671), one end of the driven bevel gear (674) is fixedly connected with a screw rod (675), the outer wall of the screw rod (675) is threadedly connected with a moving plate (676), one end of the moving plate (676) is rotatably connected with a gear shaft (677), one end of the gear shaft (677) is fixedly connected with the connecting seat (661), and the outer wall of the groove frame (671) is fixedly connected with an adjusting toothed plate (678).

5. The plate surface inspection apparatus for an inspection plate according to claim 1, characterized by: The detection structure (7) comprises a base plate (71), a positioning sliding plate (79) is fixedly connected to the lower portion of the base plate (71) and slidably connected to the outer wall of the slide rail A (62), screw holes are formed in the outer wall of the positioning sliding plate (79) for fixing the detection structure (7) to the outer wall of the slide rail A (62) through bolts, a driving motor (74) is fixedly connected to the outer wall of the base plate (71), the output end of the driving motor (74) is fixedly connected with a lead screw (73) through a shaft coupling, the outer wall of the lead screw (73) is threadedly connected with a placing sliding frame (75), a sliding groove plate (72) is fixedly connected to the top end of the base plate (71), a rectangular sliding groove (710) is formed in the outer wall of the base plate (71) for limiting the movement of the placing sliding frame (75), a relay (76) is fixedly connected to the outer wall of the placing sliding frame (75), a machine vision detector (77) is fixedly connected to the output end of the relay (76), and an eddy current detector (78) is fixedly connected to the output end of the relay (76).

6. The plate surface inspection apparatus for an inspection plate according to claim 1, characterized by: The correction structure (8) comprises a mounting seat (81) which is fixedly installed at the top end of the support rack (1), a convex plate (82) is fixedly installed on the outer wall of the mounting seat (81), a hydraulic cylinder (83) is fixedly connected to the outer wall of the convex plate (82), a slide rail B (84) is fixedly installed on the outer wall of the convex plate (82), an adjusting frame (85) is slidably connected to the outer wall of the slide rail B (84), one end of the adjusting frame (85) is fixedly connected with the hydraulic cylinder (83), a connecting rod (87) is rotatably connected to the top end of the adjusting frame (85), a crank rocker (86) is hingedly connected to the other end of the connecting rod (87), a rotating frame (88) is rotatably connected to the inner wall of the adjusting frame (85), an alignment frame (89) is fixedly connected to the bottom end of the rotating frame (88), and a limiting rod (810) is fixedly connected to the bottom end of the adjusting frame (85) for limiting the rotation of the alignment frame (89).

7. The plate surface inspection apparatus for an inspection plate according to claim 1, characterized by: The turnover discharge structure (9) comprises a support plate (91), which is fixedly installed at one end of the support rack (1), an outer wall of the support plate (91) is fixedly installed with a support seat (92), an outer wall of the support seat (92) is provided with a semicircular placing groove, a top end of the support seat (92) is fixedly connected with a fixed sliding sleeve (93), an inner part of the fixed sliding sleeve (93) is fixedly connected with a limiting sliding frame (94), one end of the limiting sliding frame (94) is fixedly connected with a double-rod air cylinder (95), an outer wall of the support plate (91) is fixedly connected with a hinged block (96), an outer wall of the hinged block (96) is rotationally connected with a crank rod (97), the crank rod (97) is hinged with a turnover frame (98), an outer wall of the turnover frame (98) is fixedly connected with a limiting column (99), and an outer wall of the turnover frame (98) is fixedly connected with a conveying roller (910).

8. The plate surface inspection apparatus for an inspection plate according to claim 1, characterized by: An outer wall of the support rack (1) is fixedly installed with a PLC control console (2), the support rack (1) is provided with a conveying module (3), and an inner wall of the support rack (1) is provided with a transmission roller device (10).

9. The plate surface inspection apparatus for an inspection plate according to claim 1, characterized by: An outer wall of the support rack (1) is fixedly installed with a mounting rack (4) through bolts, and an outer wall of the mounting rack (4) is fixedly installed with a spectrometer (5).

10. The plate surface inspection apparatus for an inspection plate according to claim 8, characterized by: The conveying module (3) comprises a servo motor, the servo motor is fixedly installed on the outer wall of the support rack (1), the servo motor is fixedly connected with a driving roller through a shaft coupling, the outer wall of the driving roller is sleeved with a conveying belt body, the outer wall of the conveying belt body is fixedly connected with a lateral guide plate, the driving roller is connected with a driven roller through the conveying belt body, and one end of the driven roller is fixedly connected with an air cylinder tensioner. The application also discloses a plate surface detection device for detecting plates and a use method thereof, and specifically comprises the following steps: Step one: starting the pre-detection of the conveying module (3) and the spectrometer (5) through the PLC control console (2), starting the servo motor of the conveying module (3), driving the driving roller to rotate, conveying the plate to be detected by the conveying belt body, starting the spectrometer (5) on the mounting rack (4), analyzing the plate surface spectrum during the conveying of the plate by the conveying belt, identifying material defects or composition abnormalities, assisting the plate guiding by the lateral guide plate of the conveying belt, and keeping the conveying belt tensioned by the air cylinder tensioner; Step two: correcting the plate in the center by the correcting structure (8), when the plate is conveyed to the correcting structure (8), the hydraulic cylinder (83) receives the PLC instruction to start, and drives the adjusting frame (85) to slide along the slide rail B (84); when the adjusting frame (85) moves, the connecting rod (87) drives the crank rocker (86) to rotate, and then drives the rotating frame (88) to rotate under the constraint of the limiting rod (810), and the alignment frame (89) aligns the plate from both sides to correct the plate in the center, so that the plate can accurately enter the working area of the fixed turnover structure (6) in the subsequent process. Step three: the laser detection and clamping action of the fixed overturning structure (6) corrects the plate material which continues to be conveyed with the conveying module (3), when passing through the through slot (663) of the clamping overturning part (66), the laser sensor (65) detects the plate material and sends a signal to the PLC console (2); then, the PLC console (2) starts the induction cylinder (6652) to push the hinged concave plate (6653) to move, through the hinged transmission of the arc plate (6654), the hinged sleeve (6656) and the fixed hinged seat (6655), the anti-skid clamp block (6657) clamps the plate material from both sides, and the fixing of the plate material is completed; Step four: the detection structure (7) detects the first surface of the plate material, the PLC console (2) starts the driving motor (74) of the detection structure (7), and the output end drives the lead screw (73) to rotate through the shaft coupling; the rotation of the lead screw (73) makes the installation slide (75) move along the slide groove plate (72) and the rectangular slide groove (710) in a reciprocating straight line; the PLC console (2) sends a signal to the relay (76) on the installation slide (75), and the relay (76) controls the machine vision detector (77) to detect the visual defects of the first surface of the plate material, and the eddy current detector (78) detects the first surface of the plate material. If the detection position needs to be adjusted, the positioning slide plate (79) can be slid on the slide rail A (62) and fixed by means of bolts to achieve the adjustment; Step five: after the first surface of the plate material is detected, the PLC console (2) receives the signal, and then the PLC console (2) starts the double-head motor (672) of the lifting and overturning part (67), drives the bevel gear shaft (673) to rotate, engages the driven bevel gear (674) to make the screw rod (675) rotate, and then drives the moving plate (676) to move; at the same time, the gear shaft (677) rolls along the adjusting gear plate (678) and rotates, so that the clamping and overturning part (66) lifts and overturns the plate material by 180°, and the second surface of the plate material faces the detection structure (7); Step six: the detection structure (7) detects the second surface of the plate material After the plate material is overturned, the action of step four is repeated, and after the detection is completed, the PLC console (2) receives the signal and starts the driving motor (74) to drive the installation slide (75) to reciprocate, and the machine vision detector (77) and the eddy current detector (78) detect the second surface of the plate material; Step seven: the transmission roller device (10) conveys the plate material to the overturning and discharging structure (9) After the detection of the second surface of the plate material is completed, the induction cylinder (6652) of the clamping assembly (665) resets, and the anti-skid clamp block (6657) releases the plate material, and the plate material falls into the transmission roller device (10); the transmission roller device (10) is started, and the plate material is conveyed to the overturning and discharging structure (9); Step eight: after the turnover discharge structure (9) matches the transportation module (3) and the detection result is sorted out, the plate is conveyed to the conveying roller (910) of the turnover discharge structure (9), the PLC console (2) instructs the double-rod air cylinder (95) to act according to the detection result; the double-rod air cylinder (95) drives the limiting slide (94) to move, cooperates with the hinge transmission of the crank rod (97) and the turnover frame (98), makes the turnover frame (98) tilt in different directions along the hinge block (96), and finally sorts out the plate according to the detection result through the conveying roller (910); Step nine: in the whole coordination process of the PLC console (2), the PLC console (2) receives the signals of the laser sensor (65) and each detector throughout the process, coordinates the action time sequence of the transportation module (3), the spectrometer (5), the correction structure (8), the fixed turnover structure (6), the detection structure (7), the transmission roller device (10), and the turnover discharge structure (9), ensures the automatic connection operation of each link, and the PLC console (2) is electrically connected with the above-mentioned components such as the servo motor of the transportation module, the spectrometer (5), the laser sensor (65), the induction air cylinder (6652), the double-head motor (672), the driving motor (74), the machine vision detector (77), the eddy current detector (78), the hydraulic cylinder (83), and the double-rod air cylinder (95).

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