A continuous casting machine roll gap on-line measurement structure calibration device and a measurement structure calibration method

Abstract

The application discloses a continuous casting machine roll gap online measurement structure calibration device and a calibration method, and solves the technical problem that existing calibration devices are not universal. The continuous casting machine roll gap online measurement structure calibration device comprises a base, a first sliding seat, a pressing block and a fixing structure for installing a measurement structure. The base comprises a bottom plate and a stand column, and the stand column is installed at a first end of the bottom plate. The first sliding seat is slidably connected with the stand column in the Z direction, and a second sliding seat is arranged towards a second end of the bottom plate. The pressing block is installed at one end of the first sliding seat towards the bottom plate. The fixing structure is located on the bottom plate, and the fixing structure is located on the moving path of the first sliding seat. When the first sliding seat moves in the Z direction, the first sliding seat drives the pressing block to move close to or away from the bottom plate. The continuous casting machine roll gap online measurement structure calibration device disclosed by the application is simple in structure, clear in function, and has high universality, and the relationship between the reduction and the measurement value can be quickly obtained only by following the calibration method.

Description

Technical Field

[0001] This application belongs to the field of roll gap measurement technology, specifically relating to an online measurement structure calibration device and measurement structure calibration method for continuous casting machine roll gap. Background Technology

[0002] Controlling the roll gap accuracy of continuous casting machines is crucial for ensuring the quality of cast billets. Currently, steel plants employ various types of roll gap gauges to inspect the roll gaps of their casting machines. Online roll gap gauges are widely used due to their advantages such as high measurement frequency and the elimination of the need for separate production processes. However, constrained by the structural space limitations of continuous casting machines, pendulum-type online roll gap gauges are common, but existing technologies do not mention a universal roll gap calibration device. Different roll gap gauges have different measurement structures, and their roll gap physical calculation models also differ, meaning roll gap accuracy is often affected by machining errors, assembly gaps, and other factors. Summary of the Invention

[0003] To address the aforementioned technical problems, this application provides an online measurement structure calibration device and a measurement structure calibration method for continuous casting machine roll gap.

[0004] The technical solution adopted to achieve the purpose of this application is as follows: In the first aspect of this application, the present invention discloses an online measurement and calibration device for the roll gap of a continuous casting machine, comprising:

[0005] A base, comprising a base plate and a column, wherein the column is mounted on the first end of the base plate;

[0006] A first sliding seat is slidably connected to the column along the Z direction, and the first sliding seat is disposed at the second end facing the base plate;

[0007] A pressure block, wherein the pressure block is mounted on one end of the first sliding seat facing the base plate; and

[0008] A fixing structure for mounting the measuring structure is located on the base plate and on the moving path of the first sliding seat;

[0009] When the first sliding seat moves along the Z direction, the first sliding seat causes the pressure block to move closer to or away from the base plate on the column.

[0010] In some embodiments, a second sliding seat is further included, which is slidably connected to the base plate along the Y direction, the Y direction being perpendicular to the Z direction, and the fixing structure being disposed on the second sliding seat;

[0011] When the second sliding seat moves along the Y direction, the second sliding seat causes the fixed structure to move closer to or away from the column on the base plate.

[0012] In some embodiments, a third sliding seat is further included, which is slidably connected to the second sliding seat along the X direction, the X direction being perpendicular to the Y direction and the Z direction, and the fixing structure is mounted on the third sliding seat.

[0013] In some embodiments, the third sliding seat includes a base plate, side plates, and a fixing rod. The base plate is connected to the second sliding seat. The two side plates are spaced apart along the Y direction. The fixing structure is connected to one of the side plates and is located between the two side plates. The fixing rod passes through one of the side plates and abuts the fixing structure against the other side plate.

[0014] In some embodiments, the fixing rod is threadedly connected to the side plate, and the fixing rod is provided with two nuts, both of which are threadedly connected to the fixing rod, and the two nuts are respectively located on both sides of the side plate.

[0015] The technical solution adopted to achieve the purpose of this application is as follows: In the second aspect of this application, the present invention also discloses a measurement structure calibration method based on the online measurement structure calibration device for continuous casting machine roll gap described in the first aspect, comprising the following steps:

[0016] The measuring structure is installed onto the fixed structure;

[0017] The first sliding seat moves the pressure block toward the measuring structure until the pressure block contacts the measuring structure. At this point, the displacement of the first sliding seat is zeroed.

[0018] Set the unit movement of the first sliding block;

[0019] The first sliding block moves downward by the unit movement amount, and the measuring structure swings in a predetermined direction. The movement amount of the pressing block and the swing amount of the measuring structure are recorded to obtain a curve of the movement amount of the pressing block and the swing amount of the measuring structure.

[0020] In some implementations, the unit movement of the first sliding block is less than or equal to 0.5 mm.

[0021] In some implementations, for a unidirectional measuring structure, when the first sliding seat is pressed down, the measuring structure is swung in a predetermined direction;

[0022] For a bidirectional measurement structure, first swing the measurement structure toward the first side, record and plot the relationship curve, then swing the measurement structure toward the second side, and record and plot the relationship curve again.

[0023] In some embodiments, before the first sliding block moves the pressure block toward the measuring structure, the measuring structure is moved first so that the measuring structure is directly below the pressure block.

[0024] In some implementations, after each unit movement of the first sliding block, the fixed structure is moved a corresponding distance in the X direction.

[0025] As can be seen from the above technical solution, the online measurement structure calibration device for continuous casting machine roll gap disclosed in this application includes a base, a first sliding seat, a pressure block, and a fixing structure for mounting the measurement structure. The base includes a base plate and a column, with the column mounted on the first end of the base plate. The first sliding seat is slidably connected to the column along the X direction, and the second sliding seat is disposed facing the second end of the base plate. The pressure block is mounted on the end of the first sliding seat facing the base plate. The fixing structure is located on the base plate and is situated on the moving path of the first sliding seat. When the first sliding seat moves along the Z direction, the first sliding seat causes the pressure block to move closer to or away from the base plate on the column.

[0026] The online measurement structure calibration device for continuous casting machine roll gap disclosed in this application has a simple structure and clear functions. After the modules are installed and finely adjusted, calibration work can be carried out. It can basically adapt to the calibration of various measurement structures and has high universality. It does not need to consider the form of the roll gap measurement structure. It can quickly obtain the relationship between the reduction amount and the measuring instrument value by simply following the calibration method, which provides convenient conditions for roll gap data processing. Attached Figure Description

[0027] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] Figure 1 This is a schematic diagram of the online measurement structure calibration device for continuous casting machine roll gap in one or more embodiments of this application;

[0029] Figure 2 for Figure 1 Side view schematic diagram of the online measurement and calibration device for roll gap in a continuous casting machine;

[0030] Figure 3 for Figure 1 Front view schematic diagram of the online measurement and calibration device for roll gap in a continuous casting machine;

[0031] Figure 4 for Figure 1 A schematic diagram of the central base;

[0032] Figure 5 for Figure 1 A schematic diagram of the third sliding block;

[0033] Figure 6 This is a schematic flowchart illustrating the calibration method for the online measurement structure of the roll gap of a continuous casting machine in one or more embodiments of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100-Base, 110-Base plate, 120-Column, 200-First sliding seat, 300-Pressure block, 400-Fixing structure, 500-Measuring structure, 600-Second sliding seat, 700-Third sliding seat, 710-Base plate, 720-Side plate, 730-Fixing rod. Detailed Implementation

[0036] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0037] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0039] This invention discloses an online measurement and calibration device for roll gap in a continuous casting machine, which can solve the technical problem that existing calibration devices lack universality.

[0040] The technical solution of this application will be described in detail below through specific embodiments:

[0041] See Figure 1 , Figure 2 , Figure 3 and Figure 4According to a first aspect embodiment of this application, an online measurement structure calibration device for continuous casting machine roll gap is provided, which includes a base 100, a first sliding seat 200, a pressure block 300, and a fixing structure 400 for mounting a measurement structure 500. The base 100 includes a base plate 110 and a column 120, with the column 120 mounted on the first end of the base plate 110. The first sliding seat 200 is slidably connected to the column 120 along the Z-direction, and the first sliding seat 200 is disposed at the second end facing the base plate 110. The pressure block 300 is mounted on the end of the first sliding seat 200 facing the base plate 110. The fixing structure 400 is located on the base plate 110 and is located on the moving path of the first sliding seat 200. When the first sliding seat 200 moves along the Z-direction, the first sliding seat 200 causes the pressure block 300 to move closer to or further away from the base plate 110 on the column 120.

[0042] The base 100 consists of a base plate 110 and a column 120. The base plate 110 serves as the foundation of the entire device, while the column 120 is securely mounted at one end of the base plate 110, providing support for the subsequent sliding structure. A first sliding seat 200 is slidably connected to the column 120 along the Z-direction. The first sliding seat 200 can move along the height of the column 120, providing a position for the subsequent installation of the pressure block 300. As the first sliding seat 200 moves on the column 120, the pressure block 300 also moves accordingly, applying or releasing pressure on the measuring structure 500. The fixing structure 400 is located on the base plate 110 and along the movement path of the first sliding seat 200. The main function of the fixing structure 400 is to install and fix the measuring structure 500 to be calibrated, ensuring that the measuring structure 500 remains stable during the calibration process.

[0043] The online measurement structure calibration device for continuous casting machine roll gap disclosed in this embodiment has a simple structure and clear functions. After the modules are installed and finely adjusted, calibration work can be carried out. It can basically adapt to the calibration of various measurement structures 500 and has high universality. It is not necessary to consider the form of the roll gap measurement structure 500. It is only necessary to follow the calibration method to quickly obtain the relationship between the reduction amount and the measuring instrument value, which provides convenient conditions for roll gap data processing.

[0044] In one embodiment, to further improve the flexibility and applicability of the calibration device, the online measurement structure calibration device for continuous casting machine roll gap also includes a second sliding seat 600. The second sliding seat 600 is slidably connected to the base plate 110 along the Y direction, which is perpendicular to the Z direction. The fixing structure 400 is disposed on the second sliding seat 600. When the second sliding seat 600 moves along the Y direction, it causes the fixing structure 400 to move closer to or further away from the column 120 on the base plate 110.

[0045] The addition of the second sliding block 600 allows the device to move left and right within a plane, increasing the degree of freedom in calibration. The combined use of the second sliding block 600 and the first sliding block 200 enables the measuring structure 500 to be precisely adjusted in three-dimensional space, thereby improving calibration accuracy.

[0046] In one embodiment, the online measurement and calibration device for the roll gap of a continuous casting machine further includes a third sliding seat 700. The third sliding seat 700 is slidably connected to the second sliding seat 600 along the X direction, which is perpendicular to the Y direction and also perpendicular to the Z direction. The fixing structure 400 is mounted on the third sliding seat 700.

[0047] The base plate 710 of the third sliding seat 700 is connected to the second sliding seat 600, forming a stable support foundation. Two side plates 720 are spaced apart along the Y direction, providing a reliable support frame for the fixed structure 400. This design ensures high stability of the entire third sliding seat 700 during both movement and fixation, reducing errors caused by vibration or external forces.

[0048] By combining the first sliding seat 200, the second sliding seat 600 and the third sliding seat 700, the device can accurately calibrate the measuring structure 500 in three-dimensional space, greatly improving the accuracy and flexibility of calibration. It can adapt to measuring structures 500 of different sizes and types, thus improving its versatility and practicality.

[0049] In this embodiment, refer to Figure 1 The vertical direction in the diagram is the Z-direction, the horizontal direction is the Y-direction, and the front-back direction is the X-direction.

[0050] See Figure 5 In one embodiment, the third sliding seat 700 includes a base plate 710, side plates 720, and a fixing rod 730. The base plate 710 is connected to the second sliding seat 600, and the two side plates 720 are spaced apart on the base plate 710 along the Y direction. A fixing structure 400 is connected to one of the side plates 720 and is located between the two side plates 720. The fixing rod 730 passes through one of the side plates 720 and abuts the fixing structure 400 against the other side plate 720.

[0051] The fixing structure 400 is located between the two side plates 720 and is secured by a fixing rod 730. The design of the fixing rod 730 allows for fine-tuning, thereby ensuring the accurate position of the measuring structure 500 during calibration. The third sliding seat 700 has a relatively simple and clear structural design, with clear connections between the various components. This makes it easier for operators to perform installation, debugging, and maintenance, reducing the difficulty and complexity of operation.

[0052] In one embodiment, the fixing rod 730 is threadedly connected to the side plate 720, and the fixing rod 730 is provided with two nuts, both of which are threadedly connected to the fixing rod 730, and the two nuts are respectively located on both sides of the side plate 720.

[0053] The threaded connection between the fixing rod 730 and the side plate 720 provides a reliable fixing method. By rotating the fixing rod 730, it can be firmly fixed to the side plate 720, thereby ensuring the stability of the measuring structure 500 during calibration. In addition, two nuts are located on both sides of the side plate 720, and by rotating them, the fixing rod 730 can be further tightened to prevent it from loosening or shifting during operation.

[0054] The use of nuts not only increases the locking force of the fixing rod 730, but also enhances the strength of the entire structure. During the online measurement of the roll gap in a continuous casting machine, the measuring structure 500 may be subjected to significant forces and vibrations. By increasing the number of nuts and the locking force, these external forces can be better resisted, protecting the measuring structure 500 from damage.

[0055] Through the above embodiments, this application has the following beneficial effects or advantages: The online measurement structure calibration device for continuous casting machine roll gap disclosed in this application, through precise sliding seat design and unit movement setting, can achieve precise calibration of the measurement structure 500, thereby improving measurement accuracy. With the addition of the second sliding seat 600 and the third sliding seat 700, this invention provides multi-directional movement capability, adapting to measurement structures 500 of different sizes and different measurement requirements.

[0056] See Figure 6 Based on the same inventive concept, the second aspect of this application discloses a calibration method for the measurement structure 500 of the online measurement structure calibration device for the roll gap of a continuous casting machine based on any of the embodiments of the first aspect described above, which includes the following steps:

[0057] S1: Install the measuring structure 500 onto the fixed structure 400;

[0058] S2: Move the first sliding seat 200 to move the pressure block 300 toward the measuring structure 500 until the pressure block 300 contacts the measuring structure 500. At this time, reset the displacement of the first sliding seat 200 to zero.

[0059] By mounting the measuring structure 500 onto the fixed structure 400 and ensuring that the displacement is zeroed after the pressure block 300 contacts the measuring structure 500, an accurate starting point is provided for the subsequent calibration process. This helps eliminate initial errors and improves calibration accuracy.

[0060] S3: Set the unit movement of the first sliding block 200. Explicitly setting the unit movement of the first sliding block 200 facilitates precise displacement control during calibration. By recording the sway of the measuring structure 500 under different displacement values, data can be collected more systematically, simplifying the calibration process and improving data consistency and comparability.

[0061] S4: The first sliding block 200 moves downward by a unit amount, and the measuring structure 500 swings in a predetermined direction. The amount of movement of the pressure block 300 and the amount of swing of the measuring structure 500 are recorded to obtain a graph showing the relationship between the movement of the pressure block 300 and the swing of the measuring structure 500. This graphical presentation helps operators quickly understand the performance characteristics of the measuring structure 500, providing strong support for subsequent analysis and adjustment.

[0062] In this process, the measuring structure 500 records a value each time the first sliding block 200 moves by one unit. However, since the measuring structure 500 rotates along a circular arc, the value recorded by the measuring structure 500 may differ each time the first sliding block 200 moves by one unit. Therefore, it is necessary to plot the movement of the first sliding block 200 against the value recorded by the measuring structure 500 into a curve. Only then can the distance between the two rollers to be measured be obtained from this curve using the value recorded by the measuring structure 500.

[0063] In this embodiment, the measuring structure 500 may include components such as an angle sensor or a displacement sensor, and the measuring structure 500 performs numerical measurements through these sensors. For example, when the measuring structure 500 includes an angle sensor, the angle sensor records an angle value every time the first sliding block 200 moves by one unit. A curve can be plotted using the angle values ​​recorded by multiple sensors and the movement of the first sliding block 200. As another example, when the measuring structure 500 includes a displacement sensor, the displacement sensor records a movement amount every time the first sliding block 200 moves by one unit. A curve can also be plotted using the movement amounts recorded by multiple displacement sensors and the movement of the first sliding block 200.

[0064] The calibration method for the measuring structure 500 disclosed in this embodiment is applicable to different types of online measuring structures 500 for continuous casting machine roll gaps. Only appropriate installation and adjustment are required based on the specific measuring structure 500. This broad applicability allows the calibration device to be flexibly applied to various measurement scenarios, improving its versatility and practicality. A systematic and standardized calibration process significantly improves calibration efficiency. Operators can quickly complete the calibration work by simply following the steps, reducing time and labor costs.

[0065] In one embodiment, to obtain more accurate calibration results, the unit movement of the first slide block 200 is less than or equal to 0.5 mm. This helps to improve the calibration resolution, allowing the variation in the oscillation of the measuring structure 500 under different displacements to be captured and recorded more accurately.

[0066] Smaller unit displacement helps reduce measurement errors caused by excessive displacement. Smaller unit displacement allows for the collection of more data, resulting in more accurate curves. However, when the unit displacement is large enough, the change in the oscillation of the measuring structure 500 during movement becomes more pronounced, making it easier to observe and collect data. Therefore, the unit displacement of the first sliding seat 200 can be greater than or equal to 0.05 mm.

[0067] While smaller unit movement can provide more data points, it also increases the time and complexity of the calibration process. Setting the unit movement to 0.05 mm or greater can reduce the time and steps required for calibration while ensuring data accuracy, thereby improving calibration efficiency.

[0068] In this embodiment, the unit movement of the first sliding seat 200 can be set to any value between 0.05mm and 0.5mm. For example, the unit movement of the first sliding seat 200 can be set to 0.1mm, 0.5mm, etc.

[0069] In one embodiment, for the unidirectional measuring structure 500, when the first sliding block 200 is pressed down, the measuring structure 500 is caused to swing in a predetermined direction. For the unidirectional measuring structure 500, only its swing in the predetermined direction needs to be considered. Therefore, during calibration, it is only necessary to press down the first sliding block 200 to cause the measuring structure 500 to swing in the predetermined direction. Since the unidirectional measuring structure 500 only swings in one direction, more focus can be placed on data recording and analysis in that direction. This helps reduce measurement errors caused by multi-directional swinging and improves calibration accuracy.

[0070] For the bidirectional measurement structure 500, first, the measurement structure 500 is swung towards the first side, the relationship curve is recorded and plotted, and then the measurement structure 500 is swung towards the second side, and the relationship curve is recorded and plotted again. This allows for a comprehensive evaluation of the performance of the measurement structure 500 in both directions.

[0071] In one embodiment, before the first sliding block 200 moves the pressure block 300 toward the measuring structure 500, the measuring structure 500 is moved first so that the measuring structure 500 is located directly below the pressure block 300.

[0072] By pre-adjusting the position of the measuring structure 500, it is ensured that it can safely and accurately contact the pressure block 300 when it moves. This avoids collisions or damage caused by positional deviations and ensures the smooth progress of the calibration process.

[0073] When the measuring structure 500 is located directly below the pressure block 300, the pressure applied by the pressure block 300 can be distributed more evenly on the measuring structure 500, thereby reducing measurement errors caused by improper positioning.

[0074] In some cases, the measuring structure 500 may need to be calibrated at a specific angle or position. By pre-adjusting the position of the measuring structure 500, these different measurement requirements can be flexibly adapted, improving the versatility and practicality of the calibration device.

[0075] In one embodiment, after the first sliding block 200 moves by one unit amount each time, the fixed structure 400 is moved a corresponding distance in the X direction.

[0076] During calibration, cumulative errors may occur due to repeated movements of the first sliding block 200. By moving the fixed structure 400 a corresponding distance in the X direction, the measuring structure 500 can be repositioned, thereby eliminating this cumulative error to some extent. This helps improve the accuracy of the calibration results.

[0077] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention have been clearly and completely described above with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0078] Therefore, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0079] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0080] In the description of this invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0081] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0082] In this invention, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0083] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0084] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for online measurement and calibration of roll gap in a continuous casting machine, characterized in that, Includes the following steps: The measuring structure is installed onto the fixed structure; First, move the measuring structure so that it is directly below the pressure block. Then, move the first sliding seat toward the measuring structure until the pressure block contacts the measuring structure. At this point, reset the displacement of the first sliding seat to zero. Set the unit movement of the first sliding block; After the first sliding block moves by one unit each time, the fixed structure moves by the corresponding distance in the X direction; The first sliding block moves downward by the unit movement amount, and the measuring structure swings in a predetermined direction. The movement amount of the pressing block and the swing amount of the measuring structure are recorded to obtain a curve of the movement amount of the pressing block and the swing amount of the measuring structure. For a unidirectional measuring structure, when the first sliding seat is pressed down, the measuring structure is swung in a predetermined direction; For a bidirectional measurement structure, first swing the measurement structure toward the first side, record and plot the relationship curve, then swing the measurement structure toward the second side, and record and plot the relationship curve again.

2. The measurement structure calibration method according to claim 1, characterized in that, In the above steps, the unit movement of the first sliding block is less than or equal to 0.5 mm.

3. A continuous casting machine roll gap online measurement structure calibration device applied to the measurement structure calibration method described in claim 1 or 2, characterized in that, include: A base, comprising a base plate and a column, wherein the column is mounted on the first end of the base plate; A first sliding seat is slidably connected to the column along the Z direction, and the first sliding seat is disposed at the second end facing the base plate; A pressure block is installed at the end of the first sliding seat facing the base plate; as well as A fixing structure for mounting the measuring structure is located on the base plate and on the moving path of the first sliding seat; When the first sliding seat moves along the Z direction, the first sliding seat causes the pressure block to move closer to or away from the base plate on the column.

4. The online measurement and calibration device for continuous casting machine roll gap according to claim 3, characterized in that, It also includes a second sliding seat, which is slidably connected to the base plate along the Y direction, the Y direction being perpendicular to the Z direction, and the fixing structure being disposed on the second sliding seat; When the second sliding seat moves along the Y direction, the second sliding seat causes the fixed structure to move closer to or away from the column on the base plate.

5. The online measurement and calibration device for continuous casting machine roll gap according to claim 4, characterized in that, It also includes a third sliding seat, which is slidably connected to the second sliding seat along the X direction. The X direction is perpendicular to the Y direction and the Z direction. The fixing structure is installed on the third sliding seat.

6. The online measurement and calibration device for continuous casting machine roll gap according to claim 5, characterized in that, The third sliding seat includes a base plate, side plates, and a fixing rod. The base plate is connected to the second sliding seat. The two side plates are spaced apart along the Y direction. The fixing structure is connected to one of the side plates and is located between the two side plates. The fixing rod passes through one of the side plates and presses the fixing structure against the other side plate.

7. The online measurement and calibration device for continuous casting machine roll gap according to claim 6, characterized in that, The fixing rod is threadedly connected to the side plate, and the fixing rod is provided with two nuts, both of which are threadedly connected to the fixing rod, and the two nuts are respectively located on both sides of the side plate.

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