Blisk tip diameter dimensional measurement tool and method

Abstract

The application discloses a kind of integral blade disc tip diameter size measuring tool and measuring method, mainly by calibration module, clamping module, connecting module and measuring module composition.Calibration module is used to measure the calibration of measuring tool in the direction of diameter before measurement, clamping module makes measuring tool self-centering clamping on calibration module or integral blade disc, connecting module connects clamping module and measuring module, and measuring module measures the diameter of integral blade disc part tip circle.This application first selects a calibration module with size Y, then obtains a lever micrometer reading through calibration module, and then measures the distance between adjusting rod and support when obtaining the same lever micrometer reading on integral blade disc, to calculate the integral blade disc tip diameter R=Y-X.The application solves the problem that conventional measuring tools (vernier caliper, etc.) cannot measure the size of integral blade disc tip circle, and the problem that high-end equipment such as three-coordinate measuring machine cannot accurately measure the size of integral blade disc tip circle.

Description

Technical Field

[0001] This invention belongs to the field of aero-engine manufacturing technology and relates to the design and research of measuring tools and methods for measuring the diameter of integral bladed disk tips. It is mainly used to measure the outer diameter of the blade tip during the machining process of the outer circle of the blade tip of an integral bladed disk. Background Technology

[0002] Integral bladed disks are important components in the fan and compressor components of next-generation aero engines. They integrate the engine rotor blades and the disk into one unit, eliminating the need for tenons, mortises, and locking mechanisms. This reduces the weight and number of parts, avoids airflow loss, and improves the aerodynamic efficiency of the aero engine. However, it also increases the manufacturing difficulty.

[0003] A simplified structural diagram of an integral bladed disk is shown below. Figure 1 As shown, the blade tip of the integral bladed disk is a curved structure when viewed from both radial and axial angles. The blade tip is essentially composed of countless connected points. In order to reduce the weight of the integral bladed disk while ensuring that it can achieve the required starting performance, the blade tip is designed to be very thin. At the same time, in order to ensure that the integral bladed disk and the casing can fit well and ensure good aerodynamic performance of the engine, the outer diameter of the outer circle of the blade tip of the integral bladed disk is required to be high.

[0004] To ensure the machining of the outer diameter of the blade tip of the integral bladed disk meets the required standards, the outer diameter of the blade tip needs to be measured multiple times during the machining process. The traditional method is to use a coordinate measuring machine (CMM) for measurement. However, CMMs have two drawbacks in measuring the outer diameter of the blade tip of the integral bladed disk:

[0005] First, the parts need to be removed from the processing equipment, measured, and then reinstalled on the processing equipment to continue processing. Multiple disassembly and clamping may lead to inaccurate processing datum, making it impossible to guarantee the final processing result.

[0006] Secondly, the probe of the coordinate measuring machine is generally a ruby ​​round head, with a diameter larger than the thinnest part of the blade tip of the integral bladed disk. This places higher demands on the operator of the coordinate measuring machine, which may lead to measurement results that do not match the design and fail to provide correct data for processing.

[0007] Therefore, it is necessary to design a measuring tool and method for the outer diameter of the blade tip of an integral bladed disk, which can quickly and accurately complete the on-machine measurement of the outer diameter of the blade tip, and provide accurate data for actual processing. Summary of the Invention

[0008] To address the problem of measuring the outer diameter of the blade tip of an integral bladed disk, this invention aims to provide a tool and method for measuring the diameter of the blade tip of an integral bladed disk, solving the problems that conventional measuring tools (such as vernier calipers) cannot measure the outer diameter of the blade tip of an integral bladed disk, and that high-end equipment such as coordinate measuring machines cannot accurately measure the outer diameter of the blade tip of an integral bladed disk.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] The tool for measuring the tip diameter of an integral bladed disk includes:

[0011] The calibration module is used for dimensional calibration in the direction of the tip diameter of the overall bladed disk before measuring the tip diameter of the overall bladed disk;

[0012] A clamping module, which self-centers and clamps itself at the central axis of the calibration module or the overall impeller;

[0013] A connecting module, the first end of which is connected to a clamping module, and the connecting module extends from the central axis of the calibration module or the overall impeller towards the outer edge of the calibration module or the overall impeller.

[0014] The measuring module is connected to the second end of the connecting module, and the measuring module includes a vertical measuring rod, a connecting rod, a bracket, a lever micrometer, an adjusting rod, and a measuring wheel body, wherein:

[0015] The vertical measuring rod has length graduations, the connecting rod is slidably connected to the vertical measuring rod, the lever micrometer is connected to the connecting rod, the measuring end of the lever micrometer is threadedly connected to the adjusting rod, the end of the adjusting rod is connected to the bracket, and the measuring wheel body is rotatably connected to the bracket.

[0016] Furthermore, the calibration module includes:

[0017] A measuring centering clamping section is provided, which is located at the central axis of the calibration module and its surface serves as a clamping surface.

[0018] The measuring end face positioning support and the calibration section in the diameter direction before measuring the measuring tool are coaxial with the measuring centering clamping section, and their outer edge contour surface serves as the radial dimension calibration surface.

[0019] The calibration module itself has a support section, which is connected to the positioning support of the measuring end face and the calibration section in the diameter direction before the measuring instrument is measured, and serves as the support surface of the calibration module.

[0020] Furthermore, the clamping module includes:

[0021] A clamping body, the clamping body comprising a variable outer diameter section, an inner hole, a through hole, and an external thread;

[0022] A clamping sleeve is fitted onto the outside of the clamping body, and at least a portion of its inner wall surface contacts the outer surface of the variable-diameter section on the clamping body.

[0023] A clamping nut is threaded onto the external thread of the clamping body, and the end face of the clamping nut forms a mating surface with the end face of the clamping sleeve.

[0024] An adapter is fixed in the through hole of the clamping body;

[0025] A connecting rotating component is rotatably connected within an adapter seat and connected to a connecting module.

[0026] Furthermore, the clamping body includes a variable-diameter section comprising multiple slots circumferentially opened along the outer wall of the clamping body.

[0027] Furthermore, the connecting rotating component includes an external thread and is rotatably connected to the adapter seat via the external thread and the washer and the first nut.

[0028] Furthermore, the connection module includes:

[0029] An adjusting beam, the first end of which is connected to the clamping module, and multiple sets of mounting holes are provided on the adjusting beam;

[0030] A first clamping plate and a second clamping plate are detachably installed at different mounting holes on the adjusting beam, and a space for clamping a vertical measuring rod is formed between the first clamping plate and the second clamping plate.

[0031] Furthermore, the first end of the adjusting beam is connected to the clamping module via a positioning pin, a sleeve, and bolts.

[0032] Furthermore, in the measurement module, the vertical measuring rod and the connecting rod are fixed in relative position by the first fixing bolt and the second fixing bolt, the lever micrometer and the connecting rod are fixed in relative position by the third fixing bolt, and the bracket and the adjusting rod are fixed in relative position by the fourth fixing bolt.

[0033] Furthermore, in the measurement module, the outer side of the measuring wheel body is a hard plastic outer wheel.

[0034] The method for measuring the tip diameter of an integral bladed disk uses the aforementioned tool for measuring the tip diameter of an integral bladed disk and includes the following steps:

[0035] Step 1: Select a calibration module with an outer diameter larger than the maximum diameter of the blade tip of the integral bladed disk. Fix the measuring tool for the blade tip diameter of the integral bladed disk onto the calibration module. Adjust the connecting module and the lever micrometer so that the measuring wheel body contacts the dimension on the calibration module corresponding to the blade tip diameter of the integral bladed disk. Record the reading of the lever micrometer as Y.

[0036] Step 2: Remove the integral bladed disk tip diameter measuring tool from the calibration module and then install it on the integral bladed disk to be measured;

[0037] Step 3: By adjusting the distance X between the adjusting rod and the bracket in the measuring module, the measuring wheel body is brought into contact with the tip of the integral bladed disk. At the same time, the maximum reading of the lever micrometer is consistent with the reading Y in Step 1. At this time, the tip diameter of the integral bladed disk R = YX. The value of X is obtained by measuring the length of the measuring wheel using a vernier caliper or ruler.

[0038] Step 4: Based on the different vertical distances H required by the design, adjust the connecting rod to achieve the required vertical distance H. Then, measure the diameter R at the tip of the bladed disk at different vertical distances H in sequence according to the method in Step 3.

[0039] The blade tip outer diameter measuring tool and method designed in this invention have a simple structure and are easy to operate, and can quickly complete the measurement of the blade tip outer diameter during the machining process of the overall bladed disk blade tip outer circle.

[0040] Compared with the traditional method of measuring blade tip diameter using a coordinate measuring machine, the present invention has the following characteristics:

[0041] (1) The present invention reduces the number of disassemblies of the integral bladed disk during the processing, improves processing efficiency, and ensures processing quality. At the same time, the measuring tools and methods of the present invention are more accurate than traditional measuring methods, providing a reference for the subsequent processing of the outer circle of the blade tip.

[0042] (2) The present invention can change the vertical measurement distance H of the measuring tool and the overall blade tip diameter R of the blade disk at the corresponding position by adjusting the vertical measuring rod and the adjusting rod at any time, so that the operator can quickly complete the numerical measurement of the diameter at the corresponding position of the blade tip.

[0043] (3) The part of the present invention that contacts the blade tip of the integral bladed disk being measured is made of hard plastic material, which can prevent the measuring tool itself from damaging the tip of the blade and protect the parts.

[0044] (4) The part of the present invention that contacts the blade tip of the integral bladed disk being measured uses a special measuring wheel, and the measuring tool and the measuring part make line contact, which increases the measurement accuracy;

[0045] (5) The present invention adopts a centering clamp, which not only allows the measuring tool to be quickly installed on the integral bladed disk to be measured, but also makes the center of the measuring tool concentric with the center of the integral bladed disk, which facilitates measurement, reduces the difficulty of measuring tool operation, and improves operation efficiency.

[0046] (6) In this invention, the measuring tool can rotate along the axis of the entire blade disk being measured, which solves the problem that the diameter of the blade tip is not on the same cross section and is inconvenient to measure. Attached Figure Description

[0047] Figure 1This is a simplified diagram of the engine's integral bladed disk structure;

[0048] Figure 2 This is a schematic diagram of the structure of the tool for measuring the outer diameter of the blade tip of an integral bladed disk;

[0049] Figure 3 This is a schematic diagram of the calibration module in a measuring tool;

[0050] Figure 4 This is a structural diagram of the clamping module in a measuring tool;

[0051] Figure 5 This is a structural diagram of the connection module in the measuring tool;

[0052] Figure 6 This is the main view of the measurement module in the measurement tool;

[0053] Figure 7 It is a side sectional view of the measuring module in the measuring tool;

[0054] Figure 8 This is a cross-sectional view of the measurement front end of the measurement module in the measuring tool;

[0055] Figure 9 This is a schematic diagram of measuring the outer diameter of the blade tip of an overall bladed disk using measuring tools;

[0056] In the diagram: 1-Calibration module, 2-Clamping module, 3-Connection module, 4-Measurement module, 101-Measurement centering clamping section, 102-Measurement end face positioning support and calibration section in the diameter direction before measurement, 103-Calibration module self-support section, 201-Clamping body, 202-Pressure sleeve, 203-Pressure nut, 204-Adapter, 205-Connecting rotating part, 206-Washer, 207-First nut, 301-Second nut, 302-Positioning Pin, 303-First clamping plate, 304-Second clamping plate, 305-Adjusting crossbeam, 306-Sleeve, 307-Bolt, 401-Vertical measuring rod, 402-Connecting rod, 403-Bracket, 404-Lever micrometer, 405-First fixing bolt, 406-Second fixing bolt, 407-Third fixing bolt, 408-Adjusting rod, 409-Fourth fixing bolt, 410-Fixing pin, 411-Measuring wheel body, 412-Hard plastic outer wheel. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. All modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0058] Traditional coordinate measuring machines (CMMs) can roughly measure the outer diameter of blade tips, but the machining process requires repeated measurement and processing, which not only limits production efficiency but also causes changes in the machining datum due to repeated disassembly and clamping, affecting machining quality. This invention solves this problem by designing a tool for measuring the outer diameter of blade tips and provides a method for using this tool. It can accurately measure the outer diameter of the overall bladed disk blade tip. The measuring tool of this invention is simple and easy to operate, greatly improving the machining efficiency and quality of parts.

[0059] like Figure 2 and Figure 7 This invention provides a measuring tool for the outer diameter of the tip of an integral bladed disk, mainly composed of a calibration module 1, a clamping module 2, a connecting module 3, and a measuring module 4. For detailed structures of the four modules of the measuring tool, please refer to [link to relevant documentation]. Figure 3 , Figure 4 , Figure 5 and Figure 6 .

[0060] like Figure 1 The calibration module 1 is used to calibrate the measuring instrument in the diameter direction before measurement. It mainly consists of three sections: the measurement centering and clamping section 101 (a cylinder) is mainly used for measurement centering and clamping; the measurement end face positioning support and the calibration section 102 (a structure with an outer cylindrical surface) is mainly used for measurement end face positioning support and calibration in the diameter direction before measurement; and the calibration module self-support section 103 (annular edge) is mainly used for calibration module self-support.

[0061] like Figure 4 The main function of the clamping module 2 is to self-center the measuring tool and clamp it onto the calibration module 1 or the overall bladed disk. It mainly consists of a clamping body 201, a clamping sleeve 202, a clamping nut 203, an adapter 204, a connecting rotating part 205, a washer 206, and a nut 207. The lower inner hole and end face of the clamping body 201 mate with the outer circle and end face of the calibration module 1 or the integral impeller, so that the measuring instrument self-centers and clamps the calibration module 1 or the integral impeller; the clamping nut 203 clamps the clamping sleeve 202, so that the clamping sleeve 202 clamps the clamping body 201, and finally the lower end of the clamping body 201 self-centers and clamps the outer circle of the calibration module 1 or the integral impeller; the adapter 204 is welded to the clamping body 201 for fixation; the gasket 206 and the nut 207 fix the connecting rotating part 205 on the adapter 204, and the rotating connecting part 205 can rotate on the adapter 204 for convenient measurement. At the same time, the rotating connecting part 205 is connected to the connecting module 3.

[0062] like Figure 5The main function of the connecting module 3 is to connect the clamping module 2 and the measuring module 4, and to adjust the distance between the measuring module 4 and the measuring point. The connecting module 3 mainly consists of a second nut 301, a positioning pin 302, a first clamping plate 303, a second clamping plate 304, an adjusting beam 305, a sleeve 306, and bolts 307. The connecting module 3 connects the measuring module 4 and the clamping module 2 together through the combination of bolts 307, the second nut 301, the sleeve 306, and the positioning pin 302; simultaneously, the adjusting beam 305 has evenly spaced mounting holes, allowing for lateral selection of the installation position and adjustment of the measuring module 4's position relative to the measuring point.

[0063] like Figures 6-8 As shown, the main function of the measuring module 4 is to measure the outer diameter of the blade tip of the integral bladed disk. It mainly consists of a vertical measuring rod 401, a connecting rod 402, a bracket 403, a lever micrometer 404, a first fixing bolt 405, a second fixing bolt 406, a third fixing bolt 407, an adjusting rod 408, a fourth fixing bolt 409, a fixing pin 410, a measuring wheel body 411, and a hard plastic outer wheel 412. The vertical measuring rod 401 and the connecting rod 402 work together to display the vertical distance from the lower end face of the clamping module 2 to the measuring point (Note: see...). Figure 9 As the vertical distance H changes, the tip diameter R of the integral impeller will change. The tip diameter of the integral impeller is usually given at multiple points, and multiple measurements are also required during actual measurement. This measuring tool can adjust the vertical measurement distance at any time for convenient measurement. The vertical measuring rod 401 and the connecting rod 402 are connected and fixed in position by the first fixing bolt 405 and the second fixing bolt 406. The lever micrometer 404 ensures that the measuring instrument maintains consistency when measuring on the calibration module 1 and the integral impeller, facilitating comparison. The lever micrometer 404 is connected to the connecting rod 402 via the third fixing bolt 407; the adjusting rod 408 and the lever micrometer 404 are connected by threads, and the function of the adjusting rod 408 is to make minute adjustments to the radial dimension; the bracket 403 is connected to the adjusting rod 408 via the fourth fixing bolt 409; the measuring wheel body 411 and the hard plastic outer wheel 412 are combined to form the measuring wheel, and are engaged with the bracket 403 via the fixing pin 410. The measuring wheel can rotate, and the contact point between the measuring wheel and the blade tip of the integral bladed disk is made of hard plastic to prevent the measuring instrument from scratching the blade tip.

[0064] The method for measuring the outer diameter of the blade tip of the integral bladed disk of the present invention includes the following steps:

[0065] Step 1: Fix the measuring tool on the calibration module 1, adjust the adjusting beam 305 and the lever micrometer 404 so that the measuring wheel of the measuring tool contacts the calibration module 1, and record the reading of the lever micrometer 404.

[0066] Step 2: Remove the measuring tool from calibration module 1 and fix the measuring tool on the integral bladed disk to be tested.

[0067] Step 3: Adjust the adjusting rod 408 and bracket 403 of the measuring module 4 to make the measuring wheel of the measuring tool contact the tip of the integral blade disk, so that the reading of the lever micrometer 404 is consistent with the reading in Step 1.

[0068] Step 4: According to the design requirements, measure the diameter of the blade tip of the entire bladed disk at different distances to provide a reference for subsequent processing.

[0069] The specific method for measuring the tip diameter of the blades in an integral bladed disc is as follows:

[0070] Step 1: Based on the outer diameter of the blade tip of the blade of the overall bladed disk to be measured, select calibration module 1. Ensure that the outer diameter Y of the positioning support of the measuring end face of calibration module 1 and the calibration section 102 in the diameter direction before measurement is greater than the maximum outer diameter R of the blade tip. Selecting a suitable calibration module 1 is to ensure that the calculation of R value is convenient in subsequent measurements and to avoid multiple adjustments of the measuring instrument.

[0071] Step 2: Fix the clamping module 2 onto the calibration module 1. Rotate the clamping nut 203 counterclockwise to depress the clamping sleeve 202. Insert the clamping module 1 axially into the measurement centering clamping section 101 of the calibration module 1, ensuring that the lower end face of the clamping body 201 is tightly fitted with the measurement end face positioning support of the calibration module 1 and the end face of the calibration section 102 in the diameter direction before measurement. Rotate the clamping nut 203 clockwise to drive the clamping sleeve 202 to press the clamping body 201, thus clamping and fixing the clamping module 2 onto the calibration module 1. Simultaneously, use a 0.02 feeler gauge to check whether the lower end face of the clamping body 201 is in close contact with the measuring end face of the calibration module 1 and the end face of the calibration section 102 in the diameter direction before the measuring instrument is measured. If they are not in close contact, reinstall the clamping module 2. The purpose of this step is: first, to make the center line of the clamping module 2 coincide with the center line of the calibration module 1, so that the measuring instrument can accurately reflect the diameter value of the blade tip during dimensional measurement; second, to ensure that the lower end face of the clamping module 2 is in close contact with the calibration module 1, so that the measuring instrument can correctly reflect the vertical distance H value.

[0072] Step 3: Install the connecting module 3 and the measuring module 4 onto the clamping module 2 sequentially using the positioning pin 302, bolt 307, and second nut 301. During installation, select the appropriate mounting hole for the adjusting beam 305 based on the value Y of the positioning support on the measuring end face of the calibration module 1 and the outer diameter Y of the calibration section 102 in the diameter direction before measurement. Adjust the connecting rod 402 and the lever micrometer 404 to make the measuring wheel of the measuring instrument contact the positioning support on the measuring end face of the calibration module 1 and the outer circle (outer circle dimension Y; for measuring different blade tip diameters, the calibration module 1 can be replaced and the value of dimension Y adjusted) of the calibration section 102 in the diameter direction before measurement. After adjustment, tighten the first fixing bolt 405, the second fixing bolt 406, and the third fixing bolt 407, and record the value of the lever micrometer 404.

[0073] Step 4: Install the measuring tool, which has been adjusted on calibration module 1, onto the integral bladed disk (see...). Figure 9 The installation process is the same as step 2.

[0074] Step 5: Measure the corresponding H value according to the drawing requirements (see...) Figure 9 The overall blade tip diameter R of the blade disc under the condition of (see) Figure 9 During the measurement process, first adjust the connecting rod 402 so that the H value from the measuring point of the measuring wheel of the measuring tool to the specified end face is a certain value required on the drawing. Then adjust the bracket 403 or the adjusting rod 408 to change the distance X between them (e.g., Figure 8 The value of X is obtained by measuring with a vernier caliper, and the value of the lever micrometer 404 is the same as the value in step 3. At this time, the bracket 403 is fixed by the fourth fixing bolt 409, and the measuring instrument is swung left and right by adjusting the crossbeam 305 so that the maximum value of the lever micrometer 404 is the same as the value in step 3. If they are different, the bracket 403 is adjusted repeatedly.

[0075] Step 6: Calculate the R value: R = YX. According to the drawing requirements, adjust the measuring tool to measure the R value at different H values ​​and record it in Table 1.

[0076] Table 1. Recording R Values

[0077] Serial Number H value R value 1 H1 R1 2 H2 R2 …… …… ……

[0078] Step 7: Compare the measured values ​​in Table 1 with the values ​​required by the drawings, and adjust the CNC machining program according to the comparison results to ensure that the actual machining value of the blade tip diameter of the overall bladed disk is the same as that required by the drawings.

[0079] Contents not described in detail in this specification are prior art known to those skilled in the art. Although illustrative specific embodiments of the invention have been described above to facilitate understanding by those skilled in the art, it should be understood that the invention is not limited to the scope of the specific embodiments. Various modifications are readily apparent to those skilled in the art as long as they fall within the spirit and scope of the invention as defined and determined by the appended claims, and all inventions utilizing the concept of this invention are protected.

Claims

1. A tool for measuring the tip diameter of an integral bladed disk, characterized in that: include: Calibration module (1), the calibration module (1) is used for dimensional calibration in the direction of the tip diameter of the overall bladed disk before the measurement of the tip diameter of the overall bladed disk; Clamping module (2), which self-centers and clamps at the central axis of calibration module (1) or the overall bladed disk; The first end of the connecting module (3) is connected to the clamping module (2), and the connecting module (3) extends from the central axis of the calibration module (1) or the integral impeller towards the outer edge of the calibration module (1) or the integral impeller; The measuring module (4) is connected to the second end of the connecting module (3), and the measuring module (4) includes a vertical measuring rod (401), a connecting rod (402), a bracket (403), a lever micrometer (404), an adjusting rod (408), and a measuring wheel body (411), wherein: The vertical measuring rod (401) has length graduations. The connecting rod (402) is slidably connected to the vertical measuring rod (401). The lever micrometer (404) is connected to the connecting rod (402). The measuring end of the lever micrometer (404) is threadedly connected to the adjusting rod (408). The end of the adjusting rod (408) is connected to the bracket (403). The measuring wheel body (411) is rotatably connected to the bracket (403). The calibration module (1) includes: Measurement centering clamping section (101) is set at the central axis of the calibration module (1), and its surface serves as the clamping surface; The measuring end face positioning support and the calibration section (102) in the diameter direction before measuring the measuring tool are coaxial with the measuring centering clamping section (101), and its outer edge contour surface is used as the radial dimension calibration surface. The calibration module itself has a support section (103), which is connected to the measuring end face positioning support and the calibration section (102) in the diameter direction before the measuring instrument is measured, and serves as the support surface of the calibration module (1). The clamping module (2) includes: The clamping body (201) includes a variable outer diameter section, an inner hole, a through hole, and an external thread; A clamping sleeve (202) is sleeved on the outside of the clamping body (201), and at least part of its inner wall surface is in contact with the outer surface of the variable outer diameter section on the clamping body (201). A clamping nut (203) is threaded onto the external thread of the clamping body (201), and the end face of the clamping nut (203) and the end face of the clamping sleeve (202) form a mating surface; Adapter (204), which is fixed in the through hole of the clamping body (201); A connecting rotating component (205) is rotatably connected within an adapter (204) and connected to a connecting module (3).

2. The integral bladed disk tip diameter measuring tool according to claim 1, characterized in that: The variable-diameter section of the clamping body (201) includes multiple slots circumferentially opened along the outer wall of the clamping body (201).

3. The integral bladed disk tip diameter measuring tool according to claim 1, characterized in that: The connecting rotating part (205) includes an external thread and is rotatably connected to the adapter (204) via the external thread and the washer (206) and the first nut (207).

4. The integral bladed disk tip diameter measuring tool according to claim 1, characterized in that: The connection module (3) includes: Adjusting beam (305), the first end of which is connected to clamping module (2), and multiple sets of mounting holes are opened on the adjusting beam (305); The first clamping plate (303) and the second clamping plate (304) are detachably installed at different mounting holes on the adjusting beam (305), and a space for clamping the vertical measuring rod (401) is formed between the first clamping plate (303) and the second clamping plate (304).

5. The integral bladed disk tip diameter measuring tool according to claim 4, characterized in that: The first end of the adjusting beam (305) is connected to the clamping module (2) via a positioning pin (302), a sleeve (306) and a bolt (307).

6. The integral bladed disk tip diameter measuring tool according to claim 1, characterized in that: In the measurement module (4), the vertical measuring rod (401) and the connecting rod (402) are fixed in relative position by the first fixing bolt (405) and the second fixing bolt (406), the lever micrometer (404) and the connecting rod (402) are fixed in relative position by the third fixing bolt (407), and the bracket (403) and the adjusting rod (408) are fixed in relative position by the fourth fixing bolt (409).

7. The integral bladed disk tip diameter measuring tool according to claim 1, characterized in that: In the measurement module (4), the outer side of the measuring wheel body (411) is a hard plastic outer wheel (412).

8. A method for measuring the tip diameter of an integral bladed disc, characterized in that: The integral bladed disk tip diameter measuring tool as described in claim 1 is used, and includes the following steps: Step 1: Select a calibration module (1) whose outer diameter is larger than the maximum diameter of the blade tip of the integral bladed disk. Fix the blade tip diameter measuring tool of the integral bladed disk on the calibration module (1). Adjust the connecting module (3) and the lever micrometer (404) so ​​that the measuring wheel body (411) contacts the dimension on the calibration module (1) corresponding to the blade tip diameter of the integral bladed disk. Record the reading of the lever micrometer (404) as Y. Step 2: Remove the integral bladed disk tip diameter measuring tool from the calibration module (1) and then install it on the integral bladed disk to be measured; Step 3: By adjusting the distance X between the adjusting rod (408) and the bracket (403) in the measuring module (4), the maximum reading of the lever micrometer (404) is consistent with the reading Y in step 1 when the measuring wheel body (411) contacts the tip of the integral bladed disk. At this time, the tip diameter R of the integral bladed disk is R=YX. Step 4: Based on the different vertical distances H required by the design, adjust the connecting rod (402) to achieve the required vertical distance H. Then, measure the diameter R of the blade tip of the overall bladed disk at different vertical distances H in sequence according to the method in Step 3.

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