A steel plate surrounding type laser thickness measuring device based on dynamic stability linkage and a detection method thereof

Abstract

The embodiment of the application provides a kind of based on dynamic stable linkage's steel plate encircles laser thickness measuring device and detection method, it is related to laser measurement technical field, including slide rail, sliding block, drive screw, annular track and laser measuring component, laser measuring component is along annular track circumferential movement, to carry out encircles scanning detection to steel plate;Annular track two ends are provided with mounting ring, and abutting component is arranged on mounting ring, and abutting component forms local stable detection area in laser measurement area;Annular track is internally provided with annular air cavity, and sealed pusher is driven to push gas flow in the movement process of laser measuring component, so that gas is sprayed out through air outlet, and the surface of steel plate is swept and cleaned.The application reduces the influence of vibration and deflection in the process of steel plate conveying on detection accuracy, improves the detection stability and detection accuracy in the process of steel plate online continuous thickness measurement.

Description

Technical Field

[0001] This application relates to the field of laser measurement technology, and in particular to a steel plate surround laser thickness measurement device and detection method based on dynamic stable linkage. Background Technology

[0002] Currently, steel plate thickness is typically measured using laser measuring instruments placed on the top and bottom sides of the steel plate. The thickness of the steel plate is calculated by measuring the distance between the top and bottom surfaces of the steel plate and the laser measuring instrument.

[0003] However, during the continuous conveying of steel plates, the steel plates are prone to swaying, vibration, local warping, and edge wave deformation, which causes the laser measurement area to be in a dynamic state, making the measurement reference unstable and affecting the accuracy of steel plate thickness detection.

[0004] In the existing technology, some detection devices limit the steel plate by adding a clamping structure. However, most clamping structures are integral fixed structures, which can only constrain the steel plate as a whole and cannot synchronously adjust the stable area according to the laser detection position. As a result, the vibration of other areas of the steel plate will still be transmitted to the detection area, thus affecting the detection stability.

[0005] In addition, existing laser inspection structures typically employ a fixed inspection method, making it difficult to perform continuous circumferential inspection of different areas of the steel plate, resulting in insufficient inspection accuracy in local areas of the steel plate.

[0006] Therefore, there is an urgent need for a steel plate surround laser thickness measurement device that can form a dynamically stable detection area during laser detection and can change synchronously with the laser detection position. Summary of the Invention

[0007] To address the aforementioned technical issues, this application provides a steel plate surround laser thickness measurement device and detection method based on dynamic stable linkage.

[0008] Firstly, this application provides a steel plate surround laser thickness measurement device based on dynamic and stable linkage, which adopts the following technical solution: A steel plate surround laser thickness measurement device based on dynamic and stable linkage includes: A pair of parallel slide rails; A sliding block is slidably disposed on the slide rail; A drive screw that is threadedly connected to the sliding block is rotatably connected to the slide rail; The slide rail is equipped with a drive assembly for driving the lead screw to rotate and driving the sliding block to move. A circular track is provided between the two sliding blocks; A laser measurement component capable of moving circumferentially along the circular track is slidably mounted on the circular track. Several support frames are rotatably mounted on the slide rail; The support frame is rotatably connected to a support roller for supporting the steel plate at its end; A torsion spring is fixedly installed on the slide rail to pull the support frame and maintain its supported state; An arc-shaped drive block is fixedly installed on the sliding block to push the support frame to swing downward and make the annular track fit around the steel plate. The circular track is equipped with a drive mechanism for driving the laser measurement component to move circumferentially along the circular track. The circular track is symmetrically provided with mounting rings at both ends; The mounting ring is provided with multiple sets of abutment components; At least two sets of abutment components are provided on the same mounting ring; The same set of abutment components are symmetrically arranged on both sides of the steel plate; The abutment assembly includes a cylinder, a buffer component, and an abutment roller; The cylinder is connected to the abutment roller via a buffer component; The cylinder is used to drive the abutment roller to move towards the steel plate, so that the abutment roller abuts against the surface of the steel plate, thereby forming a local stable detection area in the corresponding detection area of ​​the laser measurement component.

[0009] Furthermore, The annular track has an annular air cavity inside; The surface of the annular track is provided with several air outlets that communicate with the annular air chamber. The laser measurement assembly is provided with a sealing pusher located inside the annular air cavity and in contact with the inner wall of the annular air cavity; The sealing pusher is used to push the gas flow inside the annular air cavity during the circumferential movement of the laser measurement assembly along the annular track, so that the gas is ejected through the air outlet and blown clean the surface of the steel plate.

[0010] Furthermore, The air outlet is located on the front side of the laser measurement component along the direction of movement of the laser measurement component. The air outlet is inclined toward the surface of the steel plate. The sealing pusher is an elastic sealing slider. An annular opening is provided on one side of the annular air cavity. The annular opening is rotated and sealed with a rotating ring. The sealing pusher passes through the rotating ring and extends to the outside of the annular air cavity through a connecting rod.

[0011] Furthermore, The annular air cavity is provided with multiple partition plates distributed along the circumference, which divide the annular air cavity into multiple independent air chambers. As the sealing pusher moves with the laser measurement component, it sequentially compresses the gas in each independent gas chamber, causing the gas to be intermittently pulsed out through the gas outlet in the corresponding area.

[0012] Furthermore, The partition plate is slidably arranged in the radial direction, and the end of the sealing pusher is provided with a conical protrusion that pushes the partition plate toward the outside of the annular air cavity and facilitates the passage of the sealing pusher. A spring is provided on the annular track to pull the partition plate back to its original position.

[0013] Furthermore, The mounting ring is also equipped with an abutment component for positioning the side of the steel plate.

[0014] Furthermore, An elastic shock-absorbing ring is provided between the mounting ring and the annular track; The elastic damping ring is used to absorb the radial and axial vibrations generated by the circular track during its movement, so as to reduce the impact of vibration on the measurement accuracy of the laser measurement component.

[0015] Furthermore, The laser measurement component includes a laser displacement sensor, the measurement direction of which is perpendicular to the surface of the steel plate; The laser measurement component also integrates an accelerometer, which is used to collect vibration signals of the laser measurement component during its orbital motion. The device also includes a controller, which is electrically connected to the acceleration sensor and the laser displacement sensor respectively; The controller is configured to dynamically compensate the ranging results of the laser displacement sensor based on the vibration signal, so as to eliminate the fluctuation of the measurement reference caused by the circumferential motion.

[0016] This application also discloses a detection method using the above-described device, comprising the following steps: S1. The steel plate is conveyed onto the support rollers; S2. The drive component drives the sliding block to move, causing the circular track to move towards the position of the steel plate; S3. The arc-shaped drive block pushes the support frame to swing downward, so that the ring track is fitted around the steel plate. S4. The drive mechanism drives the laser measurement component to move circumferentially along the circular track. S5. During the movement of the laser measurement component, the sealing pusher moves along the inside of the annular gas cavity to promote the flow of gas inside the annular gas cavity. S6. Gas is ejected through the vent hole to blow and clean the surface of the steel plate. S7. The cylinder drives the corresponding abutment roller to abut against the surface of the steel plate to form a local stable detection zone. S8. The laser measurement component performs a surround scan on the surface of the purged steel plate and outputs the steel plate thickness measurement results.

[0017] In summary, this application includes at least one of the following beneficial technical effects: 1. This application sets up a laser measurement component that can move circumferentially around the steel plate, enabling the laser measurement component to perform continuous circumferential scanning detection on the steel plate. During the circumferential scanning process, a dynamic and stable detection area is formed, and the detection accuracy of local areas is improved, avoiding the inconvenience of steel plate movement.

[0018] 2. This application provides elastic support and buffer for the steel plate during the loading and conveying process by setting up a support frame, support rollers and torsion springs, so as to reduce impact vibration and instantaneous sway when the steel plate enters the inspection area, thereby improving the stability of the steel plate when it enters the inspection state.

[0019] 3. This application sets up a contact component that is linked to the laser measurement position, so that the contact roller can form a local stable detection zone in the corresponding detection area during the detection process, thereby reducing the impact of swaying, vibration and local warping generated during the steel plate conveying process on the laser measurement accuracy and improving the detection stability.

[0020] 4. This application sets up a linkage structure between the arc-shaped drive block, the support frame, and the ring track, so that the ring track can synchronously drive the support frame to swing as it approaches the steel plate, thereby realizing the automatic fitting of the ring track onto the outer periphery of the steel plate, reducing structural interference when the device switches detection states, and improving the operational stability of the device.

[0021] 5. This application sets up an annular air cavity inside the annular track and uses the sealing pusher driven by the laser measurement component during its movement to drive the gas flow, thereby achieving synchronous purging and cleaning of the detection area without the need for an external air source, reducing the structural complexity of the device and improving the cleaning effect on the surface of the detection area.

[0022] 6. This application enables the gas to form intermittent pulse jets by setting up multiple independent gas chambers and partition plates, thereby enhancing the cleaning ability of the purging airflow on the surface of the steel plate and improving the stability of laser detection.

[0023] 7. By setting up elastic damping rings and buffer components, this application can buffer and absorb the vibration during the operation of the circular track and the impact generated when the contact roller contacts the steel plate, thereby reducing vibration transmission and improving the operational stability of the laser measurement component.

[0024] 8. This application sets up an acceleration sensor and a controller, enabling the controller to dynamically compensate for the ranging results based on the vibration signal of the laser measuring component during the movement, thereby reducing the fluctuation of the measurement reference caused by the circumferential motion and improving the accuracy of steel plate thickness detection.

[0025] 9. This application improves the stability, accuracy and overall reliability of steel plate continuous online thickness measurement by coordinating feeding buffer, surrounding scanning, local dynamic stabilization, synchronous purging and cleaning and vibration dynamic compensation, so that each structure can form a continuous and stable cooperation during the steel plate conveying and testing process. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the mating structure between the arc-shaped drive block and the support frame in this application.

[0028] Figure 3 This is a schematic diagram of the internal structure of the annular air cavity in this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Slide rail; 2. Sliding block; 3. Drive screw; 4. Circular track; 5. Laser measuring component; 6. Support frame; 7. Support roller; 8. Arc-shaped drive block; 9. Mounting ring; 10. Cylinder; 11. Abutting roller; 12. Circular air chamber; 13. Sealing pusher; 14. Rotating ring; 15. Connecting rod; 16. Partition plate; 17. Conical protrusion; 18. Steel plate. Detailed Implementation

[0030] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0031] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0033] This application discloses a steel plate surround laser thickness measuring device based on dynamic stable linkage, including a pair of parallel slide rails 1, a sliding block 2 slidably disposed on the slide rails 1, a drive screw 3 rotatably connected to the slide rails 1 and threadedly connected to the sliding block 2, and a drive component disposed on the slide rails 1 for driving the drive screw 3 to rotate and driving the sliding block 2 to move.

[0034] The drive component drives the drive screw 3 to rotate, causing the slider 2 to move along the slide rail 1, thereby adjusting the overall position of the circular track 4. The drive component can be a servo motor or a stepper motor.

[0035] A circular track 4 is provided between the two sliding blocks 2. The circular track 4 connects the two sliding blocks 2 to form a circular detection path around the steel plate 18. A laser measuring component 5 is slidably mounted on the circular track 4. The laser measuring component 5 moves circumferentially along the circular track 4 under the action of the driving mechanism, thereby realizing a circular scanning thickness measurement of the surface of the steel plate 18. After the laser measuring component 5 completes one revolution, it drives the lead screw 3 to rotate, causing the sliding blocks 2 and the circular track 4 to move forward a specified distance.

[0036] Reference Figure 1 and Figure 2 Several support frames 6 are rotatably mounted on the slide rail 1, and support rollers 7 are rotatably connected to the ends of the support frames 6 for conveying and supporting the steel plate 18. A torsion spring is provided on the slide rail 1 to provide a restoring force to the support frames 6, so that the support frames 6 maintain a supported state when not under stress. At the same time, the torsion spring can also provide a certain buffering effect on the steel plate 18 that has just been placed on the support rollers 7.

[0037] An arc-shaped drive block 8 is fixedly installed on the sliding block 2. When the sliding block 2 moves, the arc-shaped drive block 8 pushes the support frame 6 to swing downward, so that the circular track 4 gradually descends and is fitted around the steel plate 18, thereby making the detection structure surround the steel plate 18 to form a surrounding detection state.

[0038] A drive mechanism is provided on the annular track 4 to drive the laser measurement component 5 to move circumferentially along the annular track 4, so that the laser measurement component 5 can continuously scan around the steel plate 18. The drive mechanism includes a gear ring rotatably connected inside the annular track 4. The laser measurement component 5 is mounted on the inner side wall of the gear ring. A motor is fixed on a sliding block 2, and a gear that meshes with the gear ring is coaxially fixed on the motor.

[0039] The circular track 4 is symmetrically provided with mounting rings 9 at both ends. The mounting rings 9 are provided with multiple sets of abutment components, which are used to locally limit and stabilize the steel plate 18 during the laser detection process.

[0040] Among them, at least two sets of abutting components on the same mounting ring 9 are provided to abut against the upper and lower surfaces of the steel plate 18, and at least one set of abutting components is symmetrically arranged on both sides of the steel plate 18.

[0041] The contact assembly includes a cylinder 10, a buffer, and a contact roller 11. The cylinder 10 is connected to the contact roller 11 through the buffer. The buffer is used to buffer and absorb the contact force output by the cylinder 10, so as to reduce the impact vibration generated during the contact process between the contact roller 11 and the steel plate 18, and improve the stability of the local stability detection area.

[0042] The buffer can be one or more of the following: spring, rubber buffer pad, elastic silicone part, air bladder structure, hydraulic buffer, damper or elastic telescopic sleeve.

[0043] During the testing process, the cylinder 10 drives the contact roller 11 to move towards the steel plate 18, so that the contact roller 11 contacts the surface of the steel plate 18. The contact force is buffered and adjusted by the buffer component, thereby forming a local stable testing area in the testing area corresponding to the laser measurement component 5, reducing the impact of local vibration of the steel plate 18 on the measurement results.

[0044] Reference Figure 1 and Figure 3 An annular air chamber 12 is formed inside the annular track 4. Several air outlets communicating with the annular air chamber 12 are formed on the surface of the annular track 4. The air outlets are set on the front side along the movement direction of the laser measuring component 5 and are inclined towards the surface of the steel plate 18. The air outlets are adjusted according to the actual inspection situation so that the gas jet direction acts on the area to be measured in advance, rather than completely cleaning the surface of the steel plate 18, thereby improving the detection accuracy. A sealing pusher 13 is provided on the laser measuring component 5. The sealing pusher 13 is located inside the annular air chamber 12 and fits against the inner wall of the annular air chamber 12.

[0045] When the laser measurement component 5 moves circumferentially along the annular track 4, the sealing pusher 13 moves accordingly and pushes the gas inside the annular air chamber 12 to flow, so that the gas is ejected through the air outlet to blow and clean the surface of the steel plate 18, thereby removing dust, oxides and debris and other adhering substances that affect the accuracy of laser detection.

[0046] The sealing pusher 13 is an elastic sealing slider. An annular opening is provided on one side of the annular air cavity 12. A rotating ring 14 is rotatably connected to and sealed at the annular opening. The sealing pusher 13 passes through the rotating ring 14 and extends into the annular air cavity 12 via a connecting rod 15. The laser measurement assembly 5 drives the rotating ring 14 and the sealing pusher 13 to rotate via the connecting rod 15, maintaining a stable sealing effect during the movement of the annular track 4.

[0047] Reference Figure 2 and Figure 3 The annular air cavity 12 is equipped with multiple circumferentially distributed partition plates 16, which divide the annular air cavity 12 into multiple independent air chambers. The partition plates 16 are radially slidably sealed. The end of the sealing pusher 13 is provided with a conical protrusion 17, which is used to push the partition plates 16 outward during passage to form a passage channel, while ensuring the smooth passage of the sealing pusher 13. When the sealing pusher 13 moves with the laser measurement component 5, it sequentially compresses the gas in each independent air chamber, causing the gas to form intermittent pulse jets at the air outlets in different areas, thereby enhancing the purging impact force and improving the surface cleaning effect. A spring is provided on the annular track 4 to automatically reset the partition plates 16 after the sealing pusher 13 passes, thereby restoring the independence of each air chamber.

[0048] An elastic damping ring is installed between the mounting ring 9 and the annular track 4 to absorb the radial and axial vibrations generated by the annular track 4 during operation, thereby reducing the vibration transmission to the laser measurement assembly 5 and improving measurement stability. The laser measurement assembly 5 includes a laser displacement sensor, the measurement direction of which is perpendicular to the surface of the steel plate 18.

[0049] The laser measurement component 5 also integrates an accelerometer to collect vibration signals during the laser measurement component 5's orbital motion.

[0050] The device also includes a controller, which is electrically connected to the accelerometer and the laser displacement sensor, respectively.

[0051] The controller dynamically compensates the ranging results of the laser displacement sensor based on the vibration signal, thereby eliminating the fluctuation of the measurement reference caused by vibration during the circumferential motion and improving the thickness detection accuracy.

[0052] In some embodiments, the accelerometer is used to acquire vibration acceleration signals of the laser measurement component 5 in the radial and axial directions, and the controller performs integration processing on the vibration acceleration signals to obtain the vibration displacement compensation amount.

[0053] The controller corrects the actual measurement distance of the laser measurement component 5 relative to the surface of the steel plate 18 based on the real-time distance measurement data of the laser displacement sensor and the vibration displacement compensation amount, so as to reduce the vibration error generated during the movement of the circular track 4.

[0054] In some embodiments, the controller performs low-pass filtering on the vibration signal to filter out high-frequency interference signals generated during the operation of the drive mechanism.

[0055] In some embodiments, the controller dynamically adjusts the vibration compensation parameters corresponding to different positions based on the circumferential position of the laser measurement component 5 on the circular track 4.

[0056] This application also discloses a method for measuring the thickness of steel plates using an 18-ring laser, based on the aforementioned device, comprising the following steps: First, the steel plate 18 is conveyed to the support roller 7, and the support roller 7 provides initial support and positioning for the steel plate 18. During this process, the steel plate 18 does not need to be handled gently or precisely positioned, as the torsion spring provides a certain buffering effect. Subsequently, the drive assembly drives the sliding block 2 to move, and the annular track 4 moves closer to the steel plate 18; As the circular track 4 approaches the steel plate 18, the support frame 6 is first pushed downward by the arc-shaped drive block 8, so that the circular track 4 is fitted around the steel plate 18 to form a surrounding detection structure. Subsequently, the drive mechanism drives the laser measurement component 5 to move circumferentially along the circular track 4 to achieve a circumferential scan of the surface of the steel plate 18. During the scanning process, the laser measurement component 5 synchronously drives the sealing pusher 13 to move along the inside of the annular air cavity 12, so that the gas flows in the air cavity and is ejected through the air outlet to blow and clean the surface of the steel plate 18. At the same time, the cylinder 10 drives the contact roller 11 to contact the surface of the steel plate 18, forming a local stable detection area to reduce the impact of local vibration on measurement accuracy. Finally, the laser measurement component 5 performs continuous circumferential scanning detection on the surface of the steel plate 18 after purging and stabilization treatment, and outputs the thickness detection result of the steel plate 18. The thickness of the steel plate 18 is obtained by detecting the same vertical position on both sides of the steel plate 18. The controller dynamically compensates for the ranging results based on the vibration signals collected by the accelerometer, thereby obtaining high-precision steel plate thickness data.

[0057] The above are merely preferred embodiments of this application. The scope of protection of this application is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in this application should be included within the scope of protection recorded in the claims.

Claims

1. A steel plate surround laser thickness measurement device based on dynamic stable linkage, characterized in that, include: A pair of parallel slide rails (1); A sliding block (2) is slidably disposed on the slide rail (1); A drive screw (3) that is threadedly connected to the sliding block (2) is rotatably connected to the slide rail (1); The slide rail (1) is provided with a drive assembly for driving the drive screw (3) to rotate and driving the sliding block (2) to move; A ring track (4) is provided between the two sliding blocks (2); A laser measurement component (5) that moves circumferentially along the annular track (4) is slidably disposed on the annular track (4); Several support frames (6) are rotatably mounted on the slide rail (1); The support frame (6) is rotatably connected to a support roller (7) for supporting the steel plate (18); A torsion spring is fixedly installed on the slide rail (1) for pulling the support frame (6) to maintain the support state; The sliding block (2) is fixedly provided with an arc-shaped drive block (8) for pushing the support frame (6) to swing downward and for the annular track (4) to be sleeved around the steel plate (18); The circular track (4) is provided with a driving mechanism for driving the laser measurement component (5) to move circumferentially along the circular track (4); The circular track (4) is symmetrically provided with mounting rings (9) at both ends; The mounting ring (9) is provided with multiple sets of abutment components that can move synchronously toward the steel plate (18); At least two sets of abutment components are provided on the same mounting ring (9); The same set of abutment components are symmetrically arranged on both sides of the steel plate (18); The abutting assembly includes a cylinder (10), a buffer, and an abutting roller (11); The cylinder (10) is connected to the abutment roller (11) via a buffer; The cylinder (10) is used to drive the abutment roller (11) to move towards the steel plate (18), so that the abutment roller (11) abuts against the surface of the steel plate (18) to form a local stable detection area in the corresponding detection area of ​​the laser measurement component (5).

2. The steel plate surround laser thickness measurement device based on dynamic stable linkage according to claim 1, characterized in that: The annular track (4) has an annular air cavity (12) inside; The surface of the annular track (4) is provided with several air outlets that communicate with the annular air chamber (12); The laser measurement assembly (5) is provided with a sealing pusher (13) located inside the annular air cavity (12) and in contact with the inner wall of the annular air cavity (12); The sealing pusher (13) is used to push the gas flow inside the annular air chamber (12) during the circumferential movement of the laser measurement assembly (5) along the annular track (4), so that the gas is ejected through the air outlet and blown clean the surface of the steel plate (18).

3. The steel plate surround laser thickness measurement device based on dynamic stable linkage according to claim 2, characterized in that: The air outlet is located on the front side of the laser measuring component (5) along the movement direction of the laser measuring component (5). The air outlet is inclined toward the surface of the steel plate (18). The sealing pusher (13) is an elastic sealing slider. An annular opening is provided on one side of the annular air cavity (12). The annular opening is rotated and sealed with a rotating ring (14). The sealing pusher (13) passes through the rotating ring (14) through the connecting rod (15) and extends to the outside of the annular air cavity (12).

4. The steel plate surround laser thickness measurement device based on dynamic stable linkage according to claim 3, characterized in that: The annular air cavity (12) is provided with a plurality of partition plates (16) distributed along the circumference, and the partition plates (16) divide the annular air cavity (12) into a plurality of independent air chambers. When the sealing pusher (13) moves with the laser measurement component (5), it sequentially compresses the gas in each independent gas chamber, causing the gas to be intermittently pulsed out through the gas outlet of the corresponding area.

5. A steel plate surround laser thickness measuring device based on dynamic stable linkage according to claim 4, characterized in that: The partition plate (16) is slidably arranged in the radial direction. The end of the sealing pusher (13) is provided with a conical protrusion (17) that pushes the partition plate (16) toward the outside of the annular air cavity (12) and facilitates the passage of the sealing pusher (13). The annular track (4) is provided with a spring that pulls the partition plate (16) to reset.

6. The steel plate surround laser thickness measurement device based on dynamic stable linkage according to claim 1, characterized in that: The mounting ring (9) is also provided with the aforementioned abutment component for positioning the side of the steel plate (18).

7. The steel plate surround laser thickness measurement device based on dynamic stable linkage according to claim 1, characterized in that: An elastic damping ring is provided between the mounting ring (9) and the annular track (4); The elastic damping ring is used to absorb the radial and axial vibrations generated by the annular track (4) during its movement, so as to reduce the impact of vibration on the measurement accuracy of the laser measurement component (5).

8. A steel plate surround laser thickness measuring device based on dynamic stable linkage according to claim 7, characterized in that: The laser measurement component (5) includes a laser displacement sensor, the measurement direction of which is perpendicular to the surface of the steel plate (18); The laser measurement component (5) is also integrated with an acceleration sensor, which is used to collect the vibration signal of the laser measurement component (5) during the circumferential motion. The device also includes a controller, which is electrically connected to the acceleration sensor and the laser displacement sensor respectively; The controller is configured to dynamically compensate the ranging results of the laser displacement sensor based on the vibration signal, so as to eliminate the fluctuation of the measurement reference caused by the circumferential motion. The vibration displacement compensation of the laser measurement component (5) is calculated based on the vibration acceleration signal collected by the accelerometer, and the ranging result of the laser displacement sensor is corrected based on the vibration displacement compensation to reduce the influence of vibration on the measurement result during the circumferential motion.

9. The detection method of the steel plate surround laser thickness measuring device according to claims 1-8, characterized in that, Includes the following steps: S1. The steel plate (18) is conveyed onto the support roller (7); S2. The drive assembly drives the sliding block (2) to move, causing the circular track (4) to move towards the position of the steel plate (18); S3, the arc-shaped drive block (8) pushes the support frame (6) to swing downward, so that the ring track (4) is fitted around the steel plate (18); S4. The drive mechanism drives the laser measurement component (5) to move circumferentially along the circular track (4); S5. During the movement of the laser measurement component (5), the sealing pusher (13) moves along the inside of the annular gas cavity (12) to promote the flow of gas inside the annular gas cavity (12); S6. Gas is ejected through the vent hole to blow and clean the surface of the steel plate (18); S7. The cylinder (10) drives the corresponding abutment roller (11) to abut against the surface of the steel plate (18) to form a local stable detection area. S8. The laser measurement component (5) performs a surround scan on the surface of the purged steel plate (18), detects the height of both sides of the steel plate on the same vertical line, and outputs the thickness detection result of the steel plate (18).

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