A flexible inductive sensing device for centering the outer diameter of a high-hardness coating and a method of measuring the same

Abstract

The application discloses a flexible inductive measuring tool for centering and measuring the outer diameter of a high-hardness coating and a measuring method thereof, and belongs to the technical field of machining. The composition of the flexible inductive measuring tool comprises a measuring plate base body, a measuring reference block, a digital display measuring box and two groups of measuring head moving assemblies. The lower side of the measuring plate base body is connected with the measuring reference block, so that the measuring tool and a part measuring reference surface are mutually attached during the measuring process. The upper side of the measuring plate base body is connected with the digital display measuring box, the digital display measuring box is an electronic instrument for calibrating and measuring the measuring tool, and has a measuring and indicating function. A plurality of groups of arc-shaped sliding rails are arranged at the two ends of the side plate base body respectively, and the arc-shaped sliding rails are used for guiding and positioning the measuring head moving assemblies. The measuring head moving assemblies are provided with inductive measuring heads, which are used for contact type measurement of the part. The application can effectively reduce the measuring stress of the measuring tool on the high-hardness and brittle coating of the sealing tooth tip, guarantee the integrity of the surface of the part, and precisely measure the coating of a plurality of sealing tooth tips with a conical appearance.

Description

Technical Field

[0001] This invention belongs to the field of machining technology, specifically relating to a flexible inductive sensor with a centering high-hardness coating outer diameter and its measurement method. Background Technology

[0002] Currently, in high-vortex disk-type components of aero engines, grates are used to seal the airflow. The grating structure is quite common in sealing disk-type components. In order to improve the air sealing effect between the grates and the stator and increase the wear resistance of the tooth tips, the design often involves spraying a high-hardness coating material on the outside of the grates.

[0003] However, due to the high hardness of the coating material and its distribution in the weakest parts of the component, there is often a risk of chipping during precision machining of its outer diameter, especially in radial dimension measurement. Traditional measuring tools exert a significant measuring force upon contact with the component, adversely affecting the integrity of the coating. This can lead to impacts between the measuring tool and the coating during machining, causing the coating to peel off from the tooth tips, resulting in frequent rework and repairs, severely restricting the stability of part delivery quality. Therefore, in summary, current radial measurements of high-volume scroll-type components are problematic because the surface coating is highly brittle. The significant impact force generated when the measuring tool contacts the component can cause the coating to peel off from the tooth tips, leading to chipping and damage to the component. Summary of the Invention

[0004] This invention provides a flexible inductive measuring instrument for centering the outer diameter of a high-hardness coated part and its measurement method. The purpose is to solve the problem that in the radial measurement of high-volume disk-type parts, due to the high brittleness of the coating on the surface of the part, a large instantaneous measurement impact force is generated when the measuring part of the measuring instrument comes into contact with the part, which may cause the coating on the tip of the comb to peel off, resulting in coating fragments and damage to the part.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides a flexible inductive sensing fixture with a centered high-hardness coating outer diameter, comprising a fixture body, the fixture body including a measuring plate portion, the measuring plate portion being configured with a digital display measuring box and two probe moving assemblies; wherein:

[0007] The measuring plate includes a measuring plate base and two measuring reference blocks disposed on the lower end face of the measuring plate base; the probe moving assembly includes an inductive probe and a fixing assembly disposed on the inductive probe. When the probe moving assembly is installed on the measuring plate base, the two inductive probes are located on the lower end face of the measuring plate base; the two measuring reference blocks are located between the two inductive probes.

[0008] A digital display measuring box is set on the upper surface of the measuring plate substrate. A wire harness connects the digital display measuring box to the inductive head. The digital display measuring box can display the corresponding parameters based on the position of the inductive head. The measuring plate substrate has several measuring tool slide rails along its thickness direction corresponding to the probe moving components. Two probe moving components can pass through the corresponding measuring tool slide rails and be set in the measuring plate substrate. The several measuring tool slide rails are set in an arc shape.

[0009] In some embodiments, the measuring plate substrate has a measuring centerline formed along its length, and one end of each measuring rail is located at the measuring centerline, while the other end forms the rail limit position. In the case of measurement, the flexible inductive sensor can adjust the position of the probe moving assembly along the measuring rail when calibrating the centering standard and when measuring the part after calibration.

[0010] Furthermore, every two measuring slide rails form a slide rail group, and the two measuring slide rails in each slide rail group are arranged in a 180-degree mirror image relative to the geometric center of the measuring plate substrate.

[0011] Furthermore, each probe moving component has a slide rail area formed by several probe slide rails, and the center of each probe slide rail is on the probe centerline of the probe plate base.

[0012] Furthermore, the curvature of each measuring tool slide rail is consistent, and the curvature of each measuring tool slide rail is determined according to the part to be measured.

[0013] Furthermore, in the operating state, the corresponding slide rail group is selected according to the outer diameter of the part to be measured.

[0014] Furthermore, when measuring the part to be measured, the two measuring reference blocks can come into contact with the part to be measured.

[0015] In some implementations, the probe moving assembly can be detachably mounted on the probe substrate.

[0016] Furthermore, the fixing assembly includes a measuring tool slide bar for connecting the inductive probe, the measuring tool slide bar is connected to a probe fixing rod and fixed by a probe fixing pin, the probe fixing rod can pass through the measuring tool slide rail; the probe fixing rod is also equipped with a probe fixing ring for locking the probe moving assembly to the measuring plate base.

[0017] The present invention also provides a method for measuring the outer diameter of the above-mentioned centering high-hardness coating flexible inductive sensor, the method comprising the following steps:

[0018] S1. Connecting the inductive sensor and the fixing component to form the sensor moving component;

[0019] S2. Install the probe moving assembly in the corresponding measuring tool slide rail according to the size data of the part to be measured;

[0020] S3. By adjusting the probe moving component on the arc trajectory of the measuring tool slide rail, the inductive measuring tool is installed on the special centering standard part and the probe moving component is adjusted to the preset position. Calibration is performed within the preset range. After calibration, the digital display box is adjusted to the zero position.

[0021] S4. By adjusting the probe moving assembly on the arc trajectory of the measuring tool slide rail, the inductive measuring tool is installed on the part to be measured and the probe moving assembly is adjusted to the preset position; the measuring tool is rotated within the preset range, and the measurement parameters of the part to be measured are obtained through the digital display box.

[0022] Compared with the prior art, the flexible inductive sensor with a centering high-hardness coating outer diameter and its measurement method of the present invention have the following advantages:

[0023] This invention discloses a flexible inductive sensing tool for centering the outer diameter of a high-hardness coating. It improves upon the stress effects of rigid measuring rods in conventional measuring tools when detecting the outer diameter of coatings. Using an inductance meter to measure the part, the high sensitivity of the inductance meter ensures precise measurement resolution of the coating's outer diameter, resulting in high measurement accuracy. Furthermore, the centering design of the calibration standard and the measuring tool ensures that the part is always measured at its maximum outer diameter. An arc-shaped track is designed for the inductive elastic probe, which improves the stress on the outer diameter of high-hardness coatings through arc-shaped movement. Placing the flexible inductive sensing tool on the part to be measured and moving it along the arc-shaped track allows the inductive probe to gradually contact the coating. The flexibility of the inductive probe, combined with the arc adjustment of the track, reduces the stress impact during coating measurement to a certain extent. This invention has significant practical value and potential for the precision measurement of brittle materials. Attached Figure Description

[0024] The accompanying drawings are provided to further understand the invention and constitute a part of this invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0025] Figure 1 This is a schematic diagram of the flexible inductive sensor in the present invention, which is a flexible inductive sensor with a centering high-hardness coating outer diameter and its measurement method.

[0026] Figure 2 This is a schematic diagram of the main structure of the flexible inductive sensor in the present invention, which describes a flexible inductive sensor with a centering high-hardness coating outer diameter and its measurement method.

[0027] Figure 3 This is a rear view schematic diagram of the flexible inductive sensing device in the present invention, which is a flexible inductive sensing device with a centering high-hardness coating outer diameter and its measurement method.

[0028] Figure 4This is a side view of the flexible inductive sensing device in the present invention, which is a flexible inductive sensing device with a centering high-hardness coating outer diameter and its measurement method.

[0029] Figure 5 This is a top view of the flexible inductive sensing device in the present invention, which is a flexible inductive sensing device with a centering high-hardness coating outer diameter and its measurement method.

[0030] Figure 6 This is a bottom view of the flexible inductive sensor in the present invention, which is a flexible inductive sensor with a centering high-hardness coating outer diameter and its measurement method.

[0031] The components include: 1. Inductive sensor head; 2. Side head fixing pin; 3. Wiring harness; 4. Measuring tool slide rail; 5. Probe fixing rod; 6. Probe fixing ring; 7. Measuring reference block; 8. Digital display measuring box; 9. Measuring plate base; and 10. Measuring tool slide rod. Detailed Implementation

[0032] 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 will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0033] Therefore, the following 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.

[0034] 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.

[0035] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not 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 the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0038] To address the issue of significant contact stress and the risk of coating chipping during precision measurement of high-hardness coatings on parts with sealing teeth, an improved measuring tool is proposed. This tool reduces the instantaneous contact stress during coating diameter measurement and enables precise measurement of the outer diameter of multiple sealing tooth coatings.

[0039] like Figures 1-6 As shown, the present invention discloses a flexible inductive sensing device with a centering high-hardness coating outer diameter, comprising a measuring device body, the measuring device body including a measuring plate portion, the measuring plate portion being configured with a digital display measuring box 8 and two probe moving assemblies; wherein:

[0040] The measuring plate includes a measuring plate base 9 and two measuring reference blocks 7 disposed on the lower end face of the measuring plate base 9; the probe moving assembly includes an inductive sensing head 1 and a fixing assembly disposed on the inductive sensing head 1. When the probe moving assembly is installed on the measuring plate base 9, the two inductive sensing heads 1 are located on the lower end face of the measuring plate base 9; the two measuring reference blocks 7 are located between the two inductive sensing heads 1.

[0041] A digital display measuring box 8 is disposed on the upper end face of the measuring plate base 9. A wire harness 3 is connected between the digital display measuring box 8 and the inductive head 1. The digital display measuring box 8 can display the corresponding parameters based on the position of the inductive head 1. The measuring plate base 9 has several measuring tool slide rails 4 in the direction of its thickness corresponding to the measuring head moving components. Two measuring head moving components can pass through the corresponding measuring tool slide rails 4 and be disposed on the measuring plate base 9. The several measuring tool slide rails 4 are set in an arc shape.

[0042] This invention relates to a flexible inductive sensing fixture for centering the outer diameter of a high-hardness coated part. Addressing the problem of measuring the outer diameter of the serrated sealing structure in high-turbo disk-type components of aero-engines, the flexible design and arc-shaped measuring fixture slide rail 4 reduce contact forces during measurement, improving measurement accuracy and safety. A measuring reference block 7 is used to contact the part under test during measurement, providing stable reference positioning. The probe moving assembly includes an inductive sensing head 1 and a fixing assembly. The fixing assembly allows the inductive sensing head 1 to be detachably mounted on the measuring plate base 9. Two inductive sensing heads 1 are located on the lower end face of the measuring plate base 9, and two measuring reference blocks 7 are located between the two inductive sensing heads 1. This rational layout ensures symmetry and centering effect during measurement. A digital display measuring box 8 is located on the upper end face of the measuring plate base 9 and is connected to the inductive sensing head 1 via a wiring harness 3, enabling real-time display of the parameters detected by the inductive sensing head 1. The measuring plate substrate 9 has several arc-shaped measuring tool slide rails 4 along its thickness direction. Multiple slide rail groups are respectively arranged on both sides of the measuring plate substrate 9. Each slide rail group includes two measuring tool slide rails 4 distributed in opposite directions on both sides of the centerline of the measuring plate substrate 9. The centers of the multiple slide rail groups are all on the centerline of the measuring plate substrate 9. Each slide rail group corresponds to a pitch circle measurement range. The curvature of the arc of each slide rail group is consistent, and they are distributed in opposite directions on both sides of the centerline of the measuring plate substrate. The curvature of the measuring tool slide rail 4 can be adjusted according to the size of the measured pitch circle. The probe moving assembly can pass through these slide rails and move along the arc trajectory, thereby adjusting the position of the inductive sensing head 1. The measuring tool slide rail 4 of this invention, through its arc design, allows the inductive sensing head 1 to move gradually when contacting the part to be measured, thereby reducing instantaneous impact force, protecting the high-hardness coating, and ensuring that the part measurement is not easily damaged.

[0043] In the flexible inductive sensor with a high-hardness coating outer diameter for centering, the measuring plate substrate 9 has a measuring centerline formed along its length. One end of each measuring slide rail 4 is located at the measuring centerline, and the other end forms a slide rail limit position. During measurement, the position of the probe moving assembly can be adjusted along the measuring slide rail. Using the measuring centerline as a reference, the consistency of the measurement process is ensured, so that a unified reference system can be maintained when calibrating the centering standard part and measuring the actual part. The slide rail limit position prevents the probe from being over-adjusted, which could lead to measurement errors. At the same time, it allows users to flexibly adjust the probe position according to the part size, thus improving the versatility of the measuring sensor.

[0044] In the flexible inductive sensor for centering the outer diameter of a high-hardness coating, the measuring plate substrate 9 has several arc-shaped measuring tool slide rails 4 opened along the thickness direction, which allow the probe moving assembly to move along a curved path, thereby flexibly adapting to the measurement of the outer diameter of parts with different radii of curvature or sizes. This enables a single measuring tool to cover a wider measurement range, achieving high-precision and high-efficiency measurement of the outer diameter of a high-hardness coating.

[0045] In some operating conditions, the flexible inductive sensor with a high-hardness coating outer diameter centering according to the present invention has a slide rail area formed by several measuring tool slide rails corresponding to each probe moving component. The center of each measuring tool slide rail is located on the measuring tool centerline of the measuring plate substrate. This allows the probe moving component to move on multiple slide rail groups consisting of two measuring tool slide rails 4. Each slide rail group corresponds to a pitch circle measurement range, thus providing more adjustment paths and positional options, enhancing the flexibility and adaptability of the sensor. By establishing multiple slide rail groups, the inductive sensor 1 can approach the part to be measured from different angles and positions, suitable for the measurement needs of different parts, reducing measurement blind spots, and thus improving measurement accuracy and applicability.

[0046] Furthermore, in the flexible inductive sensor with a centered high-hardness coating outer diameter of the present invention, the arc curvature of each measuring slide rail 4 is consistent, and the arc curvature of each measuring slide rail 4 is determined according to the part to be measured, so that the arc opening of the measuring slide rail 4 can be adapted to the part to be measured, thereby expanding the movement range and adjustment freedom of the inductive head 1. The non-centered arc opening allows the inductive head 1 to move on a wider arc, thereby better adapting to parts with different outer diameters and ensuring that the inductive head 1 always maintains the best contact state with the surface to be measured.

[0047] Furthermore, in each slide rail group of the present invention, the two measuring slide rails 4 are distributed on both sides of the center line of the measuring tool. In some actual working conditions, the two measuring slide rails 4 are arranged in a 180-degree mirror image relative to the geometric center of the measuring plate base 9. Through the double-sided 180-degree mirror slide rail layout, the probe moving component can move evenly on both sides of the center line, which improves the stability and reliability of the measuring tool.

[0048] In some embodiments, during operation, the flexible inductive sensor with a high-hardness coating outer diameter of the present invention selects the corresponding slide rail group by measuring the outer diameter of the part to be measured. The operator can optimize the measurement path for parts of different sizes and select the most suitable slide rail to match the outer diameter of the part, thereby improving measurement accuracy and efficiency, reducing operational complexity, and ensuring that the probe is always in the optimal position for measurement.

[0049] Furthermore, the fixing assembly of the present invention includes a measuring rod 10 for connecting the inductive sensing head 1. The measuring rod 10 is connected to a probe fixing rod 5 and fixed by a probe fixing pin 2. The probe fixing rod 5 can pass through the measuring rod slide rail 4. The probe fixing rod 5 is also equipped with a probe fixing ring 6 for locking the probe moving assembly to the measuring plate base 9. The fixing assembly of the present invention provides a stable locking auxiliary structure, ensuring that the probe will not move accidentally during the measurement process, enhancing the reliability of the connection, and ensuring measurement accuracy.

[0050] The present invention also provides a method for measuring the outer diameter of a flexible inductive sensor with a centering high-hardness coating, comprising the following steps:

[0051] S1, Connecting the inductive sensing head 1 and the fixing component to form a probe moving component;

[0052] S2. Install the probe moving assembly in the corresponding measuring tool slide rail 4 according to the size data of the part to be measured;

[0053] S3. By adjusting the probe moving component on the arc trajectory of the measuring tool slide rail 4, the inductive measuring tool is installed on the special centering standard part and the probe moving component is adjusted to the preset position. Calibration is performed within the preset range. After calibration, the digital display box 8 is adjusted to the zero position.

[0054] S4. By adjusting the probe moving assembly on the arc trajectory of the measuring tool slide rail 4, the inductive measuring tool is installed on the part to be measured and the probe moving assembly is adjusted to the preset position; the measuring tool is rotated within the preset range, and the measurement parameters of the part to be measured are obtained through the digital display box 8.

[0055] like Figures 1-6 As shown, as an example, taking the commonly encountered outer diameter measurement of the outer coating as an example, the measurement method of the present invention is specifically performed according to the following steps:

[0056] 1) Fix the inductance head 1 on the measuring tool slide bar 10 to form a probe moving assembly, ensuring that the inductance head 1 is parallel to the generatrix of the measuring tool slide bar 10;

[0057] 2) Select the appropriate measuring tool slide rail 4 to install the probe moving assembly according to the measured outer diameter of the tooth coating;

[0058] 3) Install the flexible inductive sensor on the dedicated centering standard to ensure that the reference surfaces of the sensor and the standard are in close contact with each other, and move the probe moving component to the center line position of the sensor and lock it. Fine-tune the inductive sensor 1 to ensure that the inductive sensor 1 and the standard are in full linear contact when the inductive sensor 1 is in the middle of its elastic stroke.

[0059] 4) Open the digital display box 8, rotate the flexible inductive sensor within a range of ±5 degrees, observe the change in the reading of the digital display box 8, and return the maximum value of the reading change to zero;

[0060] 5) Move the probe moving assembly away from the center line of the measuring tool to the limit position of the measuring tool slide rail 4;

[0061] 6) Move the flexible inductive sensor to ensure that the parts fit tightly against the measurement reference. At this time, move the probe moving assembly along the sensor slide rail 4 to the center line position of the sensor and lock it.

[0062] 7) Rotate the flexible inductive sensor on the part within a range of ±5 degrees and observe the change in the reading of the digital display box 8 to find the maximum value of the reading of the digital display box 8;

[0063] 8) Adjust the machine tool parameters by referring to the maximum value of the digital display box 8 until the dimensions that meet the technical requirements are produced.

[0064] In the measurement method of the flexible inductive gauge for centering the outer diameter of a high-hardness coating, the inductive gauge is mounted on a dedicated centering standard by adjusting the probe moving assembly on the arc-shaped trajectory of the gauge slide rail 4. The probe moving assembly is then adjusted to a preset position and calibrated within a preset range. After calibration, the digital display volumetric cassette 8 is adjusted to zero, ensuring the accuracy of the measurement reference. The inductive gauge is mounted on the part to be measured by adjusting the probe moving assembly on the arc-shaped trajectory of the gauge slide rail 4. The probe moving assembly is then adjusted to a preset position, and the gauge is rotated within a preset range. The measurement parameters of the part to be measured are obtained through the digital display volumetric cassette 8. The progressive contact and rotation measurement via the arc-shaped slide rail effectively reduces the impact of the measurement force on the coating and improves the reliability of the measurement data.

[0065] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Anyone skilled in the art can readily implement the present invention according to the description and above. Any modifications, alterations, or variations made based on the disclosed technical content are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A flexible inductive sensor with a centering high-hardness coating on its outer diameter, characterized in that, The measuring instrument includes a measuring plate, which is equipped with a digital display measuring box (8) and two probe moving assemblies; wherein: The measuring plate includes a measuring plate base (9) and two measuring reference blocks (7) disposed on the lower end face of the measuring plate base (9); the probe moving assembly includes an inductive sensing head (1) and a fixing assembly disposed on the inductive sensing head (1). When the probe moving assembly is installed on the measuring plate base (9), the two inductive sensing heads (1) are located on the lower end face of the measuring plate base (9); the two measuring reference blocks (7) are located between the two inductive sensing heads (1). The digital display measuring box (8) is disposed on the upper end face of the measuring plate base (9). A wire harness (3) is connected between the digital display measuring box (8) and the inductive sensor (1). The digital display measuring box (8) can display the corresponding parameters based on the position of the inductive sensor (1). The measuring plate base (9) has several measuring tool slide rails (4) in the direction of its thickness corresponding to the measuring tool moving assembly. Two measuring tool moving assemblies can pass through the corresponding measuring tool slide rails (4) and be disposed on the measuring plate base (9). The several measuring tool slide rails (4) are set in an arc shape. The measuring plate substrate (9) has a measuring tool centerline formed along its length direction. One end of each measuring tool slide rail (4) is located at the measuring tool centerline, and the other end forms the slide rail limit position. In the case of measurement, the flexible inductive sensor can adjust the position of the probe moving assembly along the measuring tool slide rail (4) when calibrating the centering standard part and when measuring the part after calibration. Each pair of the measuring tool slide rails (4) forms a slide rail group, and the two measuring tool slide rails (4) of each slide rail group are arranged in a 180-degree mirror image relative to the geometric center of the measuring plate base (9); Each of the probe moving components has a slide rail area formed by a number of measuring tool slide rails (4), and the center of each measuring tool slide rail (4) is on the measuring tool centerline of the measuring plate base (9); The arc curvature of each of the measuring slide rails (4) is consistent, and the arc curvature of each of the measuring slide rails (4) is determined according to the part to be measured.

2. The flexible inductive sensor with a centering high-hardness coating outer diameter according to claim 1, characterized in that, In operation, select the corresponding slide rail group according to the outer diameter of the part to be measured.

3. The flexible inductive sensor with a centering high-hardness coating outer diameter according to claim 1, characterized in that, When measuring the part to be measured, the two measuring reference blocks (7) can come into contact with the part to be measured.

4. The flexible inductive sensor with a centering high-hardness coating outer diameter according to claim 1, characterized in that, The probe moving assembly can be detachably mounted on the probe substrate (9).

5. The flexible inductive sensor with a centering high-hardness coating outer diameter according to claim 4, characterized in that, The fixing assembly includes a measuring rod (10) for connecting the inductive probe (1), the measuring rod (10) is connected to a probe fixing rod (5) and fixed by a probe fixing pin (2), the probe fixing rod (5) can pass through the measuring rod slide rail (4); the probe fixing rod (5) is also equipped with a probe fixing ring (6) for locking the probe moving assembly to the measuring plate base (9).

6. A method for measuring the outer diameter of a flexible inductive sensor with a centering high-hardness coating as described in any one of claims 1-5, characterized in that, The measurement method includes the following steps: S1. Connect the inductive sensing head (1) and the fixed component to form a probe moving component; S2. Install the probe moving assembly in the corresponding measuring tool slide rail (4) according to the size data of the part to be measured; S3. By adjusting the probe moving component on the arc trajectory of the measuring tool slide rail (4), the inductive measuring tool is installed on the special centering standard and the probe moving component is adjusted to the preset position. Calibration is performed within the preset range. After calibration, the digital display box (8) is adjusted to the zero position. S4. By adjusting the probe moving assembly on the arc trajectory of the measuring tool slide rail (4), the inductive measuring tool is installed on the part to be measured and the probe moving assembly is adjusted to the preset position; the measuring tool is rotated within the preset range, and the measurement parameters of the part to be measured are obtained through the digital display box (8).

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