A clamping device

Abstract

The application relates to a clamping device, comprising a pair of clamps, each clamp comprising a hanging arm and a hook arranged below the hanging arm, the hanging arm being a hollow structure; a buffer pad arranged at the top of the hook, the buffer pad being provided with a through opening in the center; a support fixed to the hook; an optical fiber sensor comprising an optical fiber probe, an optical fiber cable and an optoelectronic detection module; the optical fiber probe has a top end extending into the opening and a bottom end fixed to the support; the optical fiber cable composed of a transmitting and receiving optical fiber has one end corresponding to a light emitting part and a light receiving part of the optical fiber probe and the other end passing through the hollow interior of the hanging arm, extending to the outside of the hanging arm and corresponding to a transmitting and receiving interface of the optoelectronic detection module; the optoelectronic detection module is also electrically connected with a controller in the electric control box. Thus, the application introduces the optical fiber sensing technology, realizes non-contact detection of whether a steel coil exists, completely discards the traditional structure relying on mechanical lever signal transmission and fundamentally solves the problems of "coil" signal loss or false report caused by mechanical faults such as lever wear, deformation, jam and the like.

Description

Technical Field

[0001] This application relates to the field of hot rolling mill production equipment technology, and in particular to a clamping device. Background Technology

[0002] In the hot rolling mill's production process, steel coils are sent to the warehouse as hot-rolled finished products after completing the "finish rolling" process. At this time, the steel coils are still in a high-temperature state, with temperatures typically between 300°C and 500°C, hence the name "high-temperature steel coils." To safely and efficiently transport these high-temperature steel coils, specialized high-temperature steel coil clamps are usually used.

[0003] Existing high-temperature steel coil clamps are equipped with two load detection heads to detect whether the clamp has successfully gripped the steel coil, thus determining whether a coil has been clamped. However, in the current system, the "coil present" signals from these two load detection heads are not directly transmitted to the control system, but are instead transmitted through a mechanical lever mechanism. Specifically, when the clamp grips the steel coil, the load acts on the detection head, and through the linkage of the mechanical lever, it pushes the remote coil present detection instrument, thereby triggering the "coil present" signal.

[0004] Due to the tight production schedule of hot rolling mills, high-temperature steel coil clamps need to frequently perform coil lifting operations, resulting in mechanical levers being under high-frequency stress and movement for extended periods. During this process, the mechanical levers inevitably experience wear, deformation, and jamming. Wear can cause loosening of the lever connections, affecting transmission accuracy; deformation can cause inaccurate lever movements, or even prevent effective transmission; jamming directly leads to sluggish lever movement or complete blockage. The combined effect of these problems makes it impossible for the mechanical levers to reliably transmit load signals to the remote coil detection instrument, leading to the loss or false alarm of the "coil present" signal, seriously affecting the safety of lifting operations and the reliability of automated control.

[0005] Furthermore, a significant impact force is generated at the moment the clamps grasp and lift the steel coil. This impact force is directly transmitted to the remote coil inspection instrument via mechanical levers. Since the inspection instrument consists of precision electrical components, it is vulnerable to repeated mechanical impacts, easily causing damage to its internal structure, significantly shortening its lifespan, or even leading to frequent failures. This not only increases equipment maintenance costs but may also cause production interruptions, impacting overall production efficiency.

[0006] Therefore, existing high-temperature steel coil clamps that rely on mechanical levers to transmit signals suffer from problems such as poor signal reliability, easy instrument damage, and frequent maintenance. There is an urgent need for a solution to address the signal loss and instrument damage caused by mechanical wear and impact, thereby improving the safety and stability of the high-temperature steel coil hoisting process. Utility Model Content

[0007] In view of the above problems of the prior art, this application provides a clamping device. This application introduces fiber optic sensing technology, completely abandons the traditional structure that relies on mechanical levers to transmit signals, and solves the problem of loss or false alarm of "wound" signal caused by mechanical failures such as lever wear, deformation, and jamming.

[0008] To achieve the above objectives, this application provides a clamping device, including a pair of clamps, each clamp comprising:

[0009] The clamp includes a boom and a hook disposed below the boom, wherein the boom has a hollow structure;

[0010] A buffer pad is provided at the top of the hook, and the buffer pad has a through hole in the center;

[0011] The bracket is fixed to the hook;

[0012] Fiber optic sensors include fiber optic probes, fiber optic cables, and photoelectric detection modules;

[0013] An optical fiber probe, the top of which extends into the opening and the bottom of which is fixed to the bracket;

[0014] The fiber optic cable, consisting of transmitting and receiving optical fibers, has one end corresponding to the light-emitting and light-receiving parts of the fiber optic probe, and the other end passing through the hollow interior of the boom, extending to the outside of the boom, and corresponding to the transceiver interface of the photoelectric detection module.

[0015] The photoelectric detection module is also electrically connected to the controller in the electrical control box;

[0016] The photoelectric detection module emits a light source, which is transmitted to the light-projecting part of the fiber optic probe via the fiber optic cable and illuminates the surface of the steel coil. The light-receiving part of the fiber optic probe receives the reflected light from the surface of the steel coil, transmits it to the photoelectric detection module via the fiber optic cable, and generates a corresponding electrical signal after photoelectric conversion, which is then transmitted to the controller.

[0017] Thus, this application introduces fiber optic sensing technology. By integrating the fiber optic sensor's probe inside the clamp and utilizing the real-time sensing of the intensity of reflected light from the steel coil surface through the transmitting and receiving fibers, non-contact detection of the presence of a steel coil is achieved. This completely eliminates the traditional structure that relies on mechanical levers to transmit signals, fundamentally solving the problem of lost or false alarms of "coil presence" signals caused by mechanical failures such as lever wear, deformation, and jamming. This significantly improves the accuracy and reliability of signal detection, ensuring the safety of hoisting operations and the stability of automated control. Furthermore, the fiber optic sensor operates based on the principle of light intensity modulation, offering fast response speed, high detection accuracy, and immunity to electromagnetic interference, making it suitable for complex industrial environments such as high temperatures and strong electromagnetic interference.

[0018] As one possible implementation, the lower part of the boom is recessed inward at both ends in the length direction to form a protrusion extending along the length direction of the boom;

[0019] The hook includes a first plane and a second plane arranged in parallel, the first plane and the second plane being located on opposite sides of the protrusion;

[0020] The protruding portions are respectively perpendicular to the first plane and the second plane.

[0021] As one possible implementation, the first plane and the second plane are symmetrically arranged with respect to the protrusion;

[0022] The first plane and the second plane have the same shape and the same size.

[0023] As one possible implementation, the bracket includes a first connecting portion and a second connecting portion extending downward along one end of the first connecting portion;

[0024] The first connecting part is provided with a circular hole for fixing the optical fiber probe;

[0025] The second connecting part is fixedly connected to the first plane of the hook by bolts.

[0026] As one possible implementation, the first connecting part and the second connecting part are integrally formed.

[0027] As one possible implementation, the support is L-shaped overall.

[0028] As one possible implementation, the circular hole of the first connecting part is coaxially arranged with the opening of the buffer pad.

[0029] As one possible implementation, the connection between the bracket and the fiber optic probe has two connection positions: a first connection position located above the bracket and a second connection position located below the bracket.

[0030] Spring pads are provided at the first connection position and the second connection position, respectively.

[0031] As one possible implementation, the spring pad at the first connection position is located in the opening of the buffer pad.

[0032] As one possible implementation, the fiber optic probe is cylindrical with threads on its upper outer surface. These threads are used to engage with a spring pad to secure the fiber optic probe to the bracket via the spring pad. Attached Figure Description

[0033] Figure 1 This is a structural diagram of a clamping device provided in this application;

[0034] Figure 2 This application provides Figure 1 Enlarged view of point A in the middle;

[0035] Figure 3 This is a structural diagram of a clamping device provided in this application;

[0036] Figure 4 This application provides Figure 3 Enlarged view of point B in the middle;

[0037] It should be understood that the dimensions and shapes of the blocks in the above structural diagrams are for reference only and should not constitute an exclusive interpretation of the embodiments of the present invention. The relative positions and inclusion relationships between the blocks presented in the structural diagrams are only schematic representations of the structural relationships between the blocks, and are not intended to limit the physical connection methods of the embodiments of the present invention. Detailed Implementation

[0038] The technical solutions provided in this application will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the system architecture and business scenarios provided in the embodiments of this application are mainly for illustrating possible implementations of the technical solutions of this application and should not be construed as the sole limitation on the technical solutions of this application. Those skilled in the art will recognize that the technical solutions provided in this application are equally applicable to similar technical problems as system architectures evolve and new business scenarios emerge.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.

[0040] It should be noted in advance that, Figure 1 and Figure 3 The clamping device structure shown is the same embodiment, only from a different perspective, aiming to present a more comprehensive view of the connection relationship and spatial layout between the components.

[0041] This application provides a clamping device, such as Figure 1 and Figure 2 As shown, it includes a pair of clamps 1, each clamp 1 including:

[0042] The clamp 1 includes a boom 2 and a hook 3 disposed below the boom 2, wherein the boom 2 is a hollow structure;

[0043] A buffer pad 4 is provided on the top of the hook 3, and the buffer pad 4 has a through hole in the center;

[0044] The bracket 5 is fixed to the hook 3;

[0045] The fiber optic sensor includes a fiber optic probe 6, a fiber optic cable 7, and a photoelectric detection module;

[0046] The fiber optic probe 6 has its top end inserted into the opening and its bottom end fixed to the bracket 5.

[0047] The fiber optic cable 7, which consists of transmitting and receiving optical fibers, has one end corresponding to the light-emitting part and the light-receiving part of the fiber optic probe 6, and the other end passing through the hollow interior of the boom 2, extending to the outside of the boom 2, and corresponding to the transceiver interface of the photoelectric detection module.

[0048] The photoelectric detection module is also electrically connected to the controller in the electrical control box;

[0049] The photoelectric detection module emits a light source, which is transmitted to the light-projecting part of the fiber optic probe 6 via the fiber optic cable 7 and illuminates the surface of the steel coil. The light-receiving part of the fiber optic probe 6 receives the reflected light from the surface of the steel coil, transmits it to the photoelectric detection module via the fiber optic cable 7, and generates a corresponding electrical signal after photoelectric conversion, which is then transmitted to the controller.

[0050] Thus, this application introduces fiber optic sensing technology. By integrating the fiber optic probe 6 of the fiber optic sensor inside the clamp, and utilizing the real-time sensing of the intensity of reflected light from the surface of the steel coil through the transmitting and receiving fibers, non-contact detection of the presence of the steel coil is achieved. This completely eliminates the traditional structure that relies on mechanical levers to transmit signals, fundamentally solving the problem of lost or false alarms of the "coil present" signal caused by mechanical failures such as lever wear, deformation, and jamming. This significantly improves the accuracy and reliability of signal detection, ensuring the safety of hoisting operations and the stability of automated control. Furthermore, the fiber optic sensor operates based on the principle of light intensity modulation, offering fast response speed, high detection accuracy, and immunity to electromagnetic interference, making it suitable for complex industrial environments such as high temperatures and strong electromagnetic interference.

[0051] In some embodiments, such as Figure 3 and Figure 4 As shown, the lower part of the boom 2 is recessed inward at both ends in the length direction to form a protrusion 201 extending along the length direction of the boom 2;

[0052] The hook 3 includes a first plane 301 and a second plane 302 arranged in parallel, with the first plane 301 and the second plane 302 located on opposite sides of the protrusion 201, respectively.

[0053] The protrusion 201 is respectively perpendicular to the first plane 301 and the second plane 302.

[0054] Thus, in this application, the space between the first plane 301 and the second plane 302 of the hook 3 forms a sandwich-type installation area. This installation area can be used to fix the bracket 5 and the fiber optic probe 6. Therefore, the compact integration of the fiber optic probe 6 can be achieved without changing the overall shape of the clamp 1, resulting in high space utilization and an aesthetically pleasing structure. Furthermore, since the fiber optic probe 6 is located within the internal space between the first plane 301 and the second plane 302, that is, the fiber optic probe 6 is surrounded by the first plane 301 and the second plane 302, forming a natural physical barrier. Therefore, it can effectively prevent mechanical collisions or scratches to the fiber optic probe 6 during the lifting of the steel coil.

[0055] In some embodiments, the first plane 301 and the second plane 302 are symmetrically arranged with respect to the protrusion 201;

[0056] The first plane 301 and the second plane 302 have the same shape and the same size.

[0057] Thus, the first plane 301 and the second plane 302 are symmetrically arranged relative to the protrusion 201, ensuring that the hook 3 is subjected to uniform force on both sides when bearing the clamping force and lifting load from the steel coil, preventing deformation or fatigue cracking, and avoiding eccentric force or torsional stress caused by structural asymmetry. In addition, since the two planes are exactly the same in shape and size, a highly consistent positioning reference is provided when installing the buffer pad 4.

[0058] In some embodiments, such as Figure 4 As shown, the bracket 5 includes a first connecting portion 501 and a second connecting portion 502 extending downward along one end of the first connecting portion 501;

[0059] The first connecting part 501 is provided with a circular hole for fixing the optical fiber probe 6;

[0060] The second connecting part 502 is fixedly connected to the first plane 301 of the hook 3 by bolts.

[0061] Thus, the bracket 5 of this application adopts a split functional design, with the first connecting part 501 for precise positioning and stable installation of the fiber optic probe 6; and the second connecting part 502 for a firm connection between the bracket 5 and the hook 3, providing good impact and vibration resistance.

[0062] In some embodiments, the first connecting portion 501 and the second connecting portion 502 are integrally formed.

[0063] Thus, the one-piece molded bracket 5 structure eliminates the fitting gaps and potential weak points between the separate connecting parts, improving the overall structural strength and rigidity of the bracket 5. Under the impact loads and continuous vibration conditions generated by frequent lifting of high-temperature steel coils, the bracket 5 is not prone to deformation, cracking, or loosening, effectively ensuring the stability of the fiber optic probe 6 installation and the reliability of long-term operation.

[0064] In some embodiments, the bracket 5 is generally L-shaped.

[0065] It should be noted that the structure of the bracket 5 in this application is not limited to the above shape. The bracket 5 can be adapted and extended according to different working conditions, hook 3 structural forms and installation spaces.

[0066] For example, bracket 5 can also be "N" shaped.

[0067] Specifically, the bracket 5 includes a first connecting portion 501, a second connecting portion 502 extending downward along one end of the first connecting portion 501, and a third connecting portion extending downward along the other end of the first connecting portion 501.

[0068] The first connecting part 501 is provided with a circular hole for fixing the optical fiber probe 6;

[0069] The second connecting part 502 is fixedly connected to the first plane 301 of the hook 3 by bolts;

[0070] The third connecting part is fixedly connected to the second plane 302 of the hook 3 by bolts.

[0071] In summary, the bracket 5 in this application is not limited to meet the needs of different scenarios and improve the flexibility of the design.

[0072] In some embodiments, the circular hole of the first connecting portion 501 is coaxially arranged with the opening of the buffer pad 4.

[0073] Thus, if the circular hole of the first connecting part 501 is not coaxial with the opening of the buffer pad 4, the fiber optic probe 6 may be forced to be inserted at an angle during installation, resulting in local compression, stress concentration, or even damage to the circular hole on the outer wall of the fiber optic probe 6 or the bracket 5. The coaxial design avoids assembly deviations, allowing the fiber optic probe 6 to be installed smoothly and maintain an ideal posture.

[0074] In some embodiments, the connection between the bracket 5 and the fiber optic probe 6 has two connection positions, namely a first connection position located above the bracket 5 and a second connection position located below the bracket 5;

[0075] Spring pads 8 are respectively provided at the first connection position and the second connection position.

[0076] Thus, by simultaneously setting spring pads 8 at the first connection position above the bracket 5 and the second connection position below the bracket 5, upper and lower constraints are formed on the fiber optic probe 6, so that the fiber optic probe 6 is firmly clamped on the bracket 5, effectively preventing the fiber optic probe 6 from axially loosening or falling off in a vibration environment, and ensuring that the fiber optic probe 6 always maintains the correct installation position during long-term operation.

[0077] In some embodiments, the spring pad 8 at the first connection position is located in the opening of the buffer pad 4.

[0078] Among them, such as Figure 2 As shown, the bracket 5 and the buffer pad 8 are fitted together, and the buffer pad 4 has a certain thickness. Therefore, the spring pad 8 is covered in the figure at the first connection position, which is located in the opening of the buffer pad 4.

[0079] In this way, the spring pad 8 is embedded inside the buffer pad 4, avoiding the space occupation caused by the external placement of the spring pad 8.

[0080] In some embodiments, such as Figure 2 or Figure 4 As shown, the fiber optic probe 6 is cylindrical, and its upper outer surface is provided with threads. The threads are used to cooperate with the spring pad 8 so as to fix the fiber optic probe 6 to the bracket 5 through the spring pad 8.

[0081] in, Figure 2 or Figure 4 The structure below the middle spring pad 8 is a thread.

[0082] Thus, the above structure ensures that the fiber optic probe 6 naturally aligns during screwing in, guaranteeing accurate installation. Furthermore, the threaded connection allows for quick installation and removal without the need for special tools such as wrenches or screwdrivers, making it suitable for on-site deployment and subsequent maintenance.

[0083] In some embodiments, the fiber optic probe 6 is a high-temperature resistant fiber optic probe.

[0084] Thus, in hot rolling mills, the temperature of steel coils typically reaches 300℃ to 500℃, and the surrounding environment experiences intense heat radiation and high-temperature airflow. This application employs a fiber optic probe 6 designed for high-temperature environments, which can maintain physical stability and normal sensing function under long-term high-temperature exposure.

[0085] For example, the material of a high-temperature resistant fiber optic probe can be a high-temperature resistant quartz fiber, etc.

[0086] In some embodiments, such as Figure 4 As shown, in addition to the central opening for mounting the fiber optic probe 6, the buffer pad 4 also has several mounting holes to enable a detachable connection between the buffer pad 4 and the hook 3.

[0087] Because the cushioning pad needs to withstand high temperature, high frequency impact and repeated compression during long-term use, it is prone to wear, deformation or material fatigue and other damage. Therefore, it is designed to be replaceable.

[0088] Specifically, the buffer pad 4 is installed by fitting with the top of the hook 3 through a pre-set platform structure at its bottom. The mounting hole penetrates the body of the buffer pad 4 for inserting fastening bolts. By adjusting the bolts in the mounting hole, the buffer pad 4 can be quickly disassembled and replaced. For example, after loosening the bolts, the old buffer pad can be removed entirely, replaced with a new one, and then the bolts can be tightened again to complete the maintenance operation.

[0089] It should be noted that the platform structure at the bottom of the buffer pad 4 is not explicitly shown in the accompanying drawings of this application. Those skilled in the art can make adaptive designs for the shape, size and distribution of mounting holes of the platform according to actual needs, all of which are within the protection scope of this application.

[0090] The following section, in conjunction with the above structural description, combines... Figure 1 The working principle of the clamping device described in this application is described as shown below.

[0091] When clamp 1 begins to prepare to grip the high-temperature steel coil located on the winding machine or conveyor chain, the fiber optic sensor detects in real time. The light source emitted by the photoelectric detection module, such as a laser beam, is transmitted via fiber optic cable 7 to the light-emitting part of the fiber optic probe 6, thereby illuminating the surface of the steel coil and detecting its presence. As the hook 3 gradually approaches the surface of the steel coil, the steel coil, as a reflective target, enters the detection range of the fiber optic probe 6. When the fiber optic probe 6 detects that the distance between it and the steel coil reaches a preset threshold, such as 10-50mm, the light-receiving part of the fiber optic probe 6 receives a significant increase in the intensity of reflected light from the surface of the steel coil, forming a stable light intensity signal. This signal is transmitted via fiber optic cable 7 and then back to the photoelectric detection module. The photoelectric detection module converts this signal into an electrical signal and sends it to the controller. The controller determines that "a coil is present" and triggers the corresponding control logic, such as confirming that gripping is ready.

[0092] Thus, this application introduces fiber optic sensing technology. By integrating the fiber optic probe 6 of the fiber optic sensor inside the clamp, and utilizing the real-time sensing of the intensity of reflected light from the surface of the steel coil through the transmitting and receiving fibers, non-contact detection of the presence of the steel coil is achieved. This completely eliminates the traditional structure that relies on mechanical levers to transmit signals, fundamentally solving the problem of lost or false alarms of the "coil present" signal caused by mechanical failures such as lever wear, deformation, and jamming. This significantly improves the accuracy and reliability of signal detection, ensuring the safety of hoisting operations and the stability of automated control. Furthermore, the fiber optic sensor operates based on the principle of light intensity modulation, offering fast response speed, high detection accuracy, and immunity to electromagnetic interference, making it suitable for complex industrial environments such as high temperatures and strong electromagnetic interference.

[0093] Furthermore, the terms "first, second, third, etc." or similar terms such as module A, module B, and module C used in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that, where permissible, a specific order or sequence may be interchanged so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0094] The term "comprising" as used in the specification and claims should not be construed as limiting itself to what follows; it does not exclude other elements or steps. Therefore, it should be interpreted as specifying the presence of the mentioned feature, integral, step, or component, but does not exclude the presence or addition of one or more other features, integrals, steps, or components, or groups thereof. Thus, the statement "device comprising means A and B" should not be limited to a device consisting solely of components A and B.

[0095] The terms "an embodiment" or "an embodiment" as used in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in at least one embodiment of this application. Therefore, the terms "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics can be combined in any suitable manner, as will be apparent to those skilled in the art from this disclosure.

[0096] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of this application, all of which fall within the scope of protection of this application.

Claims

1. A clamping device, characterized in that, Includes a pair of clamps (1), each clamp (1) comprising: The boom (2) and the hook (3) located below the boom (2) are hollow structures. A buffer pad (4) is provided on the top of the hook (3), and the buffer pad (4) has a through hole in the center; The bracket (5) is fixed to the hook (3); The fiber optic sensor includes a fiber optic probe (6), a fiber optic cable (7), and a photoelectric detection module; The fiber optic probe (6) has its top end inserted into the opening and its bottom end fixed to the bracket (5). The fiber optic cable (7) is composed of transmitting and receiving optical fibers. One end of the cable corresponds to the light-emitting part and the light-receiving part of the fiber optic probe (6), and the other end passes through the hollow interior of the boom (2), extends to the outside of the boom (2), and corresponds to the transmitting and receiving interface of the photoelectric detection module. The photoelectric detection module is also electrically connected to the controller in the electrical control box; The photoelectric detection module emits a light source, which is transmitted to the light-projecting part of the fiber optic probe (6) via the fiber optic cable (7) and illuminates the surface of the steel coil. The light-receiving part of the fiber optic probe (6) receives the reflected light from the surface of the steel coil, which is transmitted to the photoelectric detection module via the fiber optic cable (7). After photoelectric conversion, a corresponding electrical signal is generated and transmitted to the controller.

2. The clamping device according to claim 1, characterized in that, The lower part of the boom (2) is recessed inward at both ends in the length direction to form a protrusion (201) extending along the length direction of the boom (2); The hook (3) includes a first plane (301) and a second plane (302) arranged in parallel, the first plane (301) and the second plane (302) being located on opposite sides of the protrusion (201); The protrusion (201) is perpendicular to the first plane (301) and the second plane (302), respectively.

3. The clamping device according to claim 2, characterized in that, The first plane (301) and the second plane (302) are symmetrically arranged with respect to the protrusion (201); The first plane (301) and the second plane (302) have the same shape and the same size.

4. The clamping device according to claim 2, characterized in that, The bracket (5) includes a first connecting part (501) and a second connecting part (502) extending downward along one end of the first connecting part (501); The first connecting part (501) is provided with a circular hole for fixing the optical fiber probe (6); The second connecting part (502) is fixedly connected to the first plane (301) of the hook (3) by bolts.

5. The clamping device according to claim 4, characterized in that, The first connecting part (501) and the second connecting part (502) are integrally formed.

6. The clamping device according to claim 4, characterized in that, The bracket (5) is L-shaped.

7. The clamping device according to claim 4, characterized in that, The circular hole of the first connecting part (501) is coaxially arranged with the opening of the buffer pad (4).

8. The clamping device according to claim 1, characterized in that, The connection between the bracket (5) and the fiber optic probe (6) has two connection positions: a first connection position located above the bracket (5) and a second connection position located below the bracket (5). Spring pads (8) are provided at the first connection position and the second connection position respectively.

9. The clamping device according to claim 8, characterized in that, The spring pad (8) at the first connection position is located in the opening of the buffer pad (4).

10. The clamping device according to claim 8, characterized in that, The fiber optic probe (6) is cylindrical and has a thread on its upper outer surface. The thread is used to cooperate with the spring pad (8) to fix the fiber optic probe (6) to the bracket (5) through the spring pad (8).

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