Turbine blade measuring tool and assembly

Abstract

The utility model relates to the field of steam turbines, in particular to a steam turbine blade measuring tool and assembly, the steam turbine blade measuring tool comprises a measuring plate and a positioning plate, the measuring plate is provided with an arc-shaped measuring part located at the edge of one side of the measuring plate, and the positioning plate is detachably connected with the measuring plate and forms an included angle with the measuring plate to support the measuring plate; at least one of the measuring plate and the positioning plate is provided with a positioning part used for abutting against the end part of the turbine blade to fix the turbine blade; during detection, the arc-shaped measuring part abuts against the arc surface of the turbine blade, and whether the molded line radian of the turbine blade is qualified or not is judged according to the fitting degree of the arc surface of the turbine blade and the arc-shaped measuring part; the measuring tool can be used by means of lamplight, one side of the arc-shaped measuring part is illuminated, whether the molded line radian of the turbine blade is qualified or not is judged according to the light leakage degree of the other side of the arc-shaped measuring part, and the measuring tool is simple in structure, convenient to use, capable of rapidly and effectively detecting the molded line radian of the turbine blade and high in practicability.

Description

Technical Field

[0001] This application relates to the field of steam turbines, and specifically to a steam turbine blade measuring tool and assembly. Background Technology

[0002] Steam turbine blades are key components of a steam turbine, and among the most delicate and important. They withstand extremely harsh conditions, including high temperature, high pressure, immense centrifugal force, steam force, steam excitation force, corrosion and vibration, and the combined effects of water droplet erosion in wet steam zones. Their aerodynamic performance, machining geometry, surface roughness, installation clearance, operating conditions, and scaling all affect the turbine's efficiency and output; their structural design, vibration intensity, and operating mode have a decisive impact on the unit's safety and reliability.

[0003] Because turbine blades have a unique structure with various profile curvatures and high precision, measuring the profile curvature of the blades is quite troublesome when inspecting the machining dimensions of the blades. There is a lack of a simple and effective tool for measuring the profile curvature of turbine blades in the existing technology. Utility Model Content

[0004] To solve, or at least partially solve, the above-mentioned technical problems, this application provides a turbine blade measuring tool, comprising:

[0005] A measuring plate having an arc-shaped measuring section located on one side edge of the measuring plate;

[0006] A positioning plate is detachably connected to the measuring plate and forms an angle with the measuring plate to support the measuring plate;

[0007] At least one of the measuring plate and the positioning plate has a positioning part, which is used to abut against the end of the turbine blade to fix the turbine blade.

[0008] The arc-shaped measuring part is used to abut against the arc surface of the turbine blade to measure the profile arc of the turbine blade.

[0009] Optionally, the arc-shaped measuring part is a convex arc shape protruding in the direction away from the positioning plate. The side of the arc-shaped measuring part away from the positioning plate has a convex arc-shaped measuring end face. The convex arc-shaped measuring end face is used to abut against the inner arc surface of the turbine blade to measure the profile curvature of the inner arc surface of the turbine blade.

[0010] Optionally, the arc-shaped measuring part further includes a chamfered surface, which forms an angle with the convex arc-shaped measuring end face. One side of the chamfered surface is connected to the convex arc-shaped measuring end face, and the other side of the chamfered surface is connected to the side of the measuring plate.

[0011] Optionally, the oblique cut surface forms a 45-degree angle with the convex arc-shaped measuring end face and the side of the measuring plate, respectively.

[0012] Optionally, the measuring plate has a first protrusion on one side, and the positioning part includes a first included angle formed by the side edge of the first protrusion facing the arc-shaped measuring part and the side edge of the measuring plate, wherein the first included angle is less than or equal to 90 degrees.

[0013] Optionally, the positioning plate has a second protrusion on one side, the positioning portion including a second included angle formed by the side edge of the second protrusion facing the measuring plate and the side edge of the positioning plate, the second included angle being less than or equal to 90 degrees.

[0014] Optionally, the measuring plate is arranged perpendicularly to the positioning plate, and one end of the measuring plate away from the arc-shaped measuring part abuts against the surface of the positioning plate.

[0015] Optionally, the positioning plate is provided with a plurality of positioning holes, and a fixing pin is detachably provided in the positioning hole. The distance between at least two of the fixing pins is equal to the thickness of the measuring plate, so as to clamp and fix the measuring plate to one side of the positioning plate.

[0016] Optionally, the arc-shaped measuring part is a concave arc shape that is recessed towards the positioning plate. The side of the arc-shaped measuring part away from the positioning plate has a concave arc-shaped measuring end face. The concave arc-shaped measuring end face is used to abut against the outer arc surface of the turbine blade to measure the profile curvature of the outer arc surface of the turbine blade.

[0017] This application provides a turbine blade measuring tool assembly, characterized in that it includes the turbine blade measuring tool as described above, wherein the measuring plate has multiple plates, and the arc-shaped measuring portion of each measuring plate has a different profile curvature.

[0018] The turbine blade measuring tool provided in this application includes a measuring plate and a positioning plate. The measuring plate has an arc-shaped measuring part located on one edge of the measuring plate. The positioning plate is detachably connected to the measuring plate and forms an angle with the measuring plate to support the measuring plate. At least one of the measuring plate and the positioning plate has a positioning part for abutting against the end of the turbine blade to fix the turbine blade. During inspection, the arc-shaped measuring part is abutted against the arc surface of the turbine blade, and the degree of contact between the arc surface of the turbine blade and the arc-shaped measuring part is used to determine whether the profile curvature of the turbine blade is qualified. This application can be used with the aid of a light. Light is shone on one side of the arc-shaped measuring part, and the degree of light leakage on the other side of the arc-shaped measuring part is used to determine whether the profile curvature of the turbine blade is qualified. This measuring tool has a simple structure, is easy to use, and can quickly and effectively detect the profile curvature of turbine blades, making it highly practical.

[0019] The turbine blade measuring tool assembly provided in this application has multiple measuring plates, each with a different arc-shaped measuring section. While possessing all the advantages mentioned above, the measuring plates can be replaced according to different detection positions of the turbine blade, enabling the measurement of the profile curvature at different positions of the turbine blade, and also enabling the measurement of the profile curvature of different turbine blades. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this application, the relevant drawings will be briefly described below. It is understood that the drawings described below are only for illustrating some embodiments of this application, and those skilled in the art can obtain many other technical features and connections not mentioned herein based on these drawings.

[0021] Figure 1 This is a schematic diagram of the turbine blade measuring tool of this application;

[0022] Figure 2 This is a top view of the turbine blade measuring tool of this application;

[0023] Figure 3 This is a schematic diagram of the positioning plate for the turbine blade quantity in this application;

[0024] Figure 4 This is a schematic diagram showing the usage status of the turbine blade measuring tool in this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Measuring plate; 110. Arc-shaped measuring part; 111. Convex arc-shaped measuring end face; 112. Beveled surface; 120. First protrusion; 130. First slot;

[0027] 200, Positioning plate; 210, Positioning hole; 220, Second protrusion; 230, Second slot;

[0028] 300. Fixed pin;

[0029] 400. Steam turbine blades;

[0030] 500, Light source. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0034] The technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0035] Example 1

[0036] like Figure 1 As shown, this embodiment provides a turbine blade measuring tool, which consists of a measuring plate 100 and a positioning plate 200. The measuring plate 100 is fixed on the positioning plate 200 and is used to contact the arc-shaped surface of the turbine blade to detect the profile curvature of the turbine blade.

[0037] Specifically, such as Figure 1 As shown, in this embodiment, the measuring plate 100 has an arc-shaped measuring part 110 on one side edge. The arc-shaped measuring part 110 is arc-shaped, and its arc dimension is the standard dimension of the profile arc of the turbine blade 400. The arc-shaped measuring part 110 is used to abut against the arc surface of the turbine blade 400 to measure the profile arc of the turbine blade 400.

[0038] In this embodiment, the positioning plate 200 and the measuring plate 100 are detachably connected. After the measuring plate 100 and the positioning plate 200 are connected, they form an angle to support the measuring plate 100. In this embodiment, since the measuring plate 100 and the positioning plate 200 form an angle after being connected, the measuring plate 100 and the positioning plate 200 can be placed vertically. The measuring plate 100 is placed vertically in a fixed state to measure the turbine blade 400.

[0039] It is worth mentioning that, in this embodiment, at least one of the measuring plate 100 and the positioning plate 200 has a positioning part. The positioning part is used to abut against the end of the turbine blade 400 to fix the turbine blade 400. The positioning part is used to fix the turbine blade 400 on the turbine blade measuring tool to prevent movement and ensure the stability of the measurement state.

[0040] In use, the measuring plate 100 and the positioning plate 200 are assembled, with the measuring plate 100 fixed on the positioning plate 200, ensuring that both are in a vertical position. One side of the measuring plate 100 is fixedly connected to the positioning plate 200, and the other side has an arc-shaped measuring section 110. The turbine blade 400 to be tested is placed on the turbine blade measuring tool, with at least one end of the turbine blade 400 abutting against the positioning section of the measuring plate 100 or the positioning plate 200. The other end of the turbine blade 400 is fixed to the bottom surface. At this time, the arc-shaped measuring section 110 is close to the arc surface of the turbine blade 400.

[0041] In this embodiment, the curvature of the arc-shaped measuring part 110 is used as a measuring reference. The arc-shaped measuring part 110 is fitted to the arc surface of the turbine blade 400. If the fitting degree between the arc-shaped measuring part 110 and the arc surface of the turbine blade 400 is very high, that is, there is almost no gap, then the curvature of the arc surface profile of the turbine blade 400 is qualified. If the two are not completely fitted and there is a certain gap, then the curvature of the arc surface profile of the turbine blade 400 is unqualified.

[0042] In this embodiment, the degree of contact between the arc-shaped measuring part 110 and the arc surface of the turbine blade 400 can be observed with the naked eye. Of course, if the naked eye observation is not possible, the light leakage method can also be used for detection.

[0043] like Figure 4 As shown, after the turbine blade 400 is in contact with the turbine blade measuring tool, a light source 500 is used to illuminate the arc-shaped measuring part 110 on one side of the measuring plate 100. The gap between the arc-shaped measuring part 110 and the turbine blade 400 is observed on the other side of the measuring plate 100. If no light leaks through the gap, it indicates that the arc surface of the turbine blade 400 and the arc-shaped measuring part 110 have a high degree of fit, and the arc surface profile of the turbine blade 400 is qualified. If light leaks through the gap, it indicates that the arc surface profile of the turbine blade 400 is unqualified.

[0044] The turbine blade measuring tool provided in this embodiment has a simple structure and can be used with simple assembly. The turbine blade 400 can be simply placed on the turbine blade measuring tool. The turbine blade measuring tool can quickly and effectively detect the profile curvature of the turbine blade. It is convenient to use and highly practical.

[0045] like Figure 1 and Figure 4As shown, in this embodiment, the arc-shaped measuring part 110 is a convex arc shape protruding in the direction away from the positioning plate 200. The side of the arc-shaped measuring part 110 away from the positioning plate 200 has a convex arc-shaped measuring end face 111. The convex arc-shaped measuring end face 111 is used to abut against the inner arc surface of the turbine blade 400 to measure the profile curvature of the inner arc surface of the turbine blade 400.

[0046] In this embodiment, the curvature of the convex arc measuring end face 111 is used as the measuring tool reference. The convex arc measuring end face 111 is fitted with the arc surface of the turbine blade 400. If the fitting degree between the convex arc measuring end face 111 and the arc surface of the turbine blade 400 is very high, then the curvature of the arc surface profile of the turbine blade 400 is qualified. If the two are not completely fitted and there is a certain gap, then the curvature of the arc surface profile of the turbine blade 400 is unqualified.

[0047] In one embodiment, such as Figure 2 As shown, the arc-shaped measuring part 110 includes a convex arc-shaped measuring end face 111 and a chamfered surface 112. The chamfered surface 112 forms an angle with the convex arc-shaped measuring end face 111. One side of the chamfered surface 112 is connected to the convex arc-shaped measuring end face 111, and the other side of the chamfered surface 112 is connected to the side of the measuring plate 100.

[0048] The design of the beveled surface 112 can narrow the width of the convex arc-shaped measuring end face 111, making it easier to observe whether there is a gap between the convex arc-shaped measuring end face 111 and the arc surface of the turbine blade 400. In addition, the beveled surface 112 helps to guide light to the convex arc-shaped measuring end face 111, reducing the obstruction of light by the arc-shaped measuring part 110, avoiding the situation where light cannot pass through when there is a gap between the convex arc-shaped measuring end face 111 and the arc surface of the turbine blade 400, and ensuring the accuracy of the measuring instrument.

[0049] Preferably, the chamfered surface 112 forms a 45-degree angle with the convex arc-shaped measuring end face 111 and the side surface of the measuring plate 100, respectively. This angle can be understood as 135 degrees, that is, the chamfered surface 112 is a 45-degree chamfer transition between the convex arc-shaped measuring end face 111 and the side surface of the measuring plate 100.

[0050] like Figure 1 As shown, in one embodiment, the measuring plate 100 has a first protrusion 120 on one side, and the positioning part is the first included angle formed by the side edge of the first protrusion 120 facing the arc-shaped measuring part 110 and the side edge of the measuring plate 100, the first included angle being less than or equal to 90 degrees.

[0051] When the turbine blade 400 approaches and is placed on the measuring plate 100, one end of the turbine blade 400 can abut within the first included angle. At this time, the arc surface of the turbine blade 400 fits with the convex arc measuring end face 111, and the turbine blade 400 reaches the measuring position.

[0052] Similarly, in one embodiment, the positioning plate 200 has a second protrusion 220 on one side. The positioning portion is the second included angle formed by the side edge of the second protrusion 220 facing the measuring plate 100 and the side edge of the positioning plate 200, and the second included angle is less than or equal to 90 degrees.

[0053] When the turbine blade 400 approaches the measuring plate 100 and the positioning plate 200, one side of the turbine blade 400 can abut against the second included angle. At this time, the arc surface of the turbine blade 400 fits against the convex arc measuring end face 111, and the turbine blade 400 reaches the measuring position.

[0054] In one embodiment, such as Figure 1 As shown, the positioning part includes the aforementioned first included angle and second included angle, and the two sides of the turbine blade 400 are fixed by abutting against the first included angle and the second included angle respectively. The first included angle and the second included angle face different directions, thereby fixing the turbine blade 400 from both sides.

[0055] Preferred, such as Figure 1 As shown, in some embodiments, a first slot 130 is provided in the first included angle and a second slot 230 is provided in the second included angle. The two sides of the turbine blade 400 abut against the first slot 130 and the second slot 230 respectively, thereby preventing the turbine blade 400 from moving.

[0056] In this embodiment, the angle formed by the measuring plate 100 and the positioning plate 200 can be a right angle, such as... Figure 2 As shown, the measuring plate 100 and the positioning plate 200 are arranged perpendicularly. The end of the measuring plate 100 away from the arc-shaped measuring part 110 abuts against the surface of the positioning plate 200. The measuring plate 100 and the positioning plate 200 are connected in a T-shape to ensure the stability of the measuring instrument. Of course, the included angle formed by the measuring plate 100 and the positioning plate 200 can also be other angles, as long as the connection between the measuring plate 100 and the positioning plate 200 can support each other and ensure stability.

[0057] like Figure 2 As shown, in one embodiment, the positioning plate 200 is provided with a plurality of positioning holes 210, and a fixing pin 300 is detachably provided in the positioning hole 210. The distance between at least two fixing pins 300 is equal to the thickness of the measuring plate 100, so as to clamp and fix the measuring plate 100 to one side of the positioning plate 200.

[0058] Preferably, four positioning holes 210 are provided, and the four positioning holes 210 correspond to each other in pairs. Four fixing pins 300 are respectively inserted into the corresponding positioning holes 210, and a mounting groove is formed between the pairs of fixing pins 300. The width of the mounting groove is the thickness of the measuring plate 100. The measuring plate 100 is inserted between the pairs of fixing pins 300, and the four fixing pins 300 clamp and fix the measuring plate 100 from both sides. This connection method is simple and can quickly realize the installation and removal of the measuring plate 100 and the positioning plate 200.

[0059] Of course, in one embodiment, a mounting groove can be provided on one side of the positioning plate 200, and the measuring plate 100 can be directly inserted into the mounting groove to achieve a fixed connection. This embodiment does not limit the detachable connection method between the measuring plate 100 and the positioning plate 200.

[0060] In some embodiments, the arc-shaped measuring part 110 may also be concave arc-shaped, used to measure the outer arc surface of the turbine blade 400. The arc-shaped measuring part 110 is concave arc-shaped, recessed in the direction away from the positioning plate 200. The side of the arc-shaped measuring part 110 away from the positioning plate 200 has a concave arc-shaped measuring end face, which is used to abut against the outer arc surface of the turbine blade 400 to measure the profile curvature of the outer arc surface of the turbine blade 400.

[0061] In this embodiment, the curvature of the concave arc measuring end face is used as the measuring tool reference. The concave arc measuring end face is fitted with the outer arc surface of the turbine blade 400. If the fit between the concave arc measuring end face and the outer arc surface of the turbine blade 400 is very high, the curvature of the outer arc surface profile of the turbine blade 400 is qualified. If the two are not fully fitted and there is a certain gap, the curvature of the outer arc surface profile of the turbine blade 400 is unqualified.

[0062] In this embodiment, the curvature of the convex arc measuring end face 111 and the concave arc measuring end face, as well as the shape and size of the measuring plate 100 and the positioning plate 200, are all determined according to different models of steam turbine blades 400.

[0063] Example 2

[0064] This embodiment provides a turbine blade measuring tool assembly, which includes the turbine blade measuring tool described in the previous embodiment. The assembly has multiple measuring plates 100, each with an arc-shaped measuring section 110 having a different profile curvature, used to measure the profile curvature of turbine blades 400 of different models and sizes. In this embodiment, each measuring plate 100 is detachably mounted on a positioning plate 200, and the corresponding measuring plate 100 can be selected for installation and measurement depending on the turbine blade 400 being measured.

[0065] The turbine blade measuring tool assembly provided in this embodiment has multiple measuring plates 100, each measuring plate 100 having a different arc-shaped measuring section 110. This assembly possesses all the advantages mentioned in the above embodiments, which will not be repeated here. Furthermore, the measuring plates 100 can be replaced according to different detection positions of the turbine blade 400, enabling the measurement of the profile curvature at different positions of the turbine blade 400, and also enabling the measurement of the profile curvature of different turbine blades 400, thus having a wide range of applications.

[0066] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A turbine blade measuring tool, characterized in that, include: The measuring plate (100) has an arc-shaped measuring section (110) located on one side edge of the measuring plate (100); A positioning plate (200) is detachably connected to the measuring plate (100) and forms an angle with the measuring plate (100) to support the measuring plate (100); At least one of the measuring plate (100) and the positioning plate (200) has a positioning part for abutting against the end of the turbine blade (400) to fix the turbine blade (400). The arc-shaped measuring part (110) is used to abut against the arc surface of the turbine blade (400) to measure the profile arc of the turbine blade (400).

2. The turbine blade measuring tool according to claim 1, characterized in that, The arc-shaped measuring part (110) is a convex arc shape that protrudes away from the positioning plate (200). The side of the arc-shaped measuring part (110) away from the positioning plate (200) has a convex arc-shaped measuring end face (111). The convex arc-shaped measuring end face (111) is used to abut against the inner arc surface of the turbine blade (400) to measure the profile curvature of the inner arc surface of the turbine blade (400).

3. The turbine blade measuring tool according to claim 2, characterized in that, The arc-shaped measuring part (110) also includes a chamfered surface (112), which forms an angle with the convex arc-shaped measuring end face (111). One side of the chamfered surface (112) is connected to the convex arc-shaped measuring end face (111), and the other side of the chamfered surface (112) is connected to the side of the measuring plate (100).

4. The turbine blade measuring tool according to claim 3, characterized in that, The oblique cut surface (112) forms a 45-degree angle with the convex arc-shaped measuring end face (111) and the side of the measuring plate (100).

5. The turbine blade measuring tool according to any one of claims 1-4, characterized in that, The measuring plate (100) has a first protrusion (120) on one side, and the positioning part includes a first included angle formed by the side edge of the first protrusion (120) facing the arc-shaped measuring part (110) and the side edge of the measuring plate (100), the first included angle being less than or equal to 90 degrees.

6. The turbine blade measuring tool according to any one of claims 1-4, characterized in that, The positioning plate (200) has a second protrusion (220) on one side. The positioning portion includes a second included angle formed by the side edge of the second protrusion (220) facing the measuring plate (100) and the side edge of the positioning plate (200), the second included angle being less than or equal to 90 degrees.

7. The turbine blade measuring tool according to any one of claims 1-4, characterized in that, The measuring plate (100) is perpendicular to the positioning plate (200), and the end of the measuring plate (100) away from the arc-shaped measuring part (110) abuts against the surface of the positioning plate (200).

8. The turbine blade measuring tool according to claim 7, characterized in that, The positioning plate (200) is provided with a plurality of positioning holes (210), and a fixing pin (300) is detachably provided in the positioning hole (210). The distance between at least two fixing pins (300) is equal to the thickness of the measuring plate (100) so as to clamp and fix the measuring plate (100) to one side of the positioning plate (200).

9. The turbine blade measuring tool according to claim 1, characterized in that, The arc-shaped measuring part (110) is a concave arc shape that is recessed towards the positioning plate (200). The side of the arc-shaped measuring part (110) away from the positioning plate (200) has a concave arc-shaped measuring end face. The concave arc-shaped measuring end face is used to abut against the outer arc surface of the turbine blade (400) to measure the profile arc of the outer arc surface of the turbine blade (400).

10. A turbine blade measuring tool assembly, characterized in that, The turbine blade measuring tool includes any one of claims 1-9, wherein the measuring plate (100) has a plurality of plates, and the arc measuring portion (110) of each measuring plate (100) has a different profile curvature.

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