CN114485327A - Device for precisely measuring turbine disc blade assembly and grinding method - Google Patents

Abstract

The invention discloses a device for precise measurement of turbine disk blade assemblies, comprising a support base, a benchmarking assembly, a bridge measuring device, and a measured assembly; the upper part of the support base is symmetrically provided with a V for placing the benchmarking assembly or the measured assembly. The benchmarking component includes a standard plate and a central axis in the middle; the bridge measuring instrument includes a beam in the middle, and support frames are fixed at both ends of the beam. The bottom of the support frame is provided with a V-shaped groove matching the V-shaped table. At least one vertical through hole is arranged in the middle of the upper surface, a dial indicator is fixedly inserted in the through hole, the head of the dial indicator is placed on the upper part of the beam, and the measuring head of the dial indicator is placed at the lower part of the beam; Turbine discs containing turbine blades, stationary components. The device is used to precisely measure the components to be tested, thereby obtaining the machining amount that needs to be ground, so as to realize the precise grinding of turbine disk blades. The invention can realize high-precision measurement and grinding of turbine blades, and has simple structure and easy operation.

Description

A device and grinding method for precise measurement of turbine disk blade assembly

technical field

The invention relates to the technical field of machining, in particular to a device and a grinding method for precise measurement of turbine disk blade components.

Background technique

In the turbine disk assembly, a ring of turbine blades is mounted. Usually, the new turbine blades are longer than those required by the standard, and the overall diameter is larger. At this time, it is necessary to measure the turbine blades first, and compare the measured data with the standard data to obtain the difference. Out of the grinding feed, it can be ground on the cylindrical grinder to make the overall diameter of the turbine disk assembly meet the requirements. The existing measurement of new turbine blades is directly measured by vernier calipers, but due to the special shape of the turbine blades, the measurement position is completely judged by the human eye during the measurement process using the vernier calipers, and the measurement process is relatively difficult. It is difficult to measure the turbine disk with a larger diameter, and it is difficult to meet the requirements in terms of accuracy. In addition, in the process of measuring the turbine blade, it is necessary to keep the turbine disk in a vertical state, otherwise the measured value will be There is a large error. The process of using vernier calipers to measure will inevitably make the turbine disk unable to maintain a vertical state, resulting in a large error in the measurement value.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a device with simple structure and convenient operation, which can realize high-precision measurement of turbine blades.

Another object of the present invention is to precisely measure the turbine disk blade assembly based on the above-mentioned device for precise measurement of the turbine disk blade assembly, so as to realize a method for accurately grinding the turbine disk blade.

The present invention is achieved through the following technical solutions: a device for precise measurement of turbine disk blade assemblies, comprising a support base, a benchmarking assembly, a bridge measuring instrument, and a measured assembly;

The upper part of the support base is symmetrically provided with a V-shaped stage for placing the benchmarking component or the component under test;

The benchmarking assembly includes a standard disc in the middle, and a central shaft penetrating the standard disc and fixed to it;

The bridge measuring instrument includes a beam in the middle, a support frame is fixed at both ends of the beam, the bottom of the support frame is provided with a V-shaped groove matching the V-shaped table, and at least one is arranged in the middle of the upper surface of the beam. A vertical through hole, a dial indicator is fixedly embedded in the through hole, the head of the dial indicator is placed on the upper part of the beam, and the measuring head of the dial indicator is placed at the lower part of the beam;

The component under test includes a turbine disk containing turbine blades, and a stationary assembly that secures the turbine disk.

The working principle of the technical solution is that, by constructing the vertical position relationship between the dial indicator and the turbine disk, the precise reading of the dial indicator is used to precisely measure the turbine blades on the turbine disk. Moreover, the standard disc in the benchmarking assembly is used to realize the zero adjustment and correction of the dial indicator, which further improves the precise measurement process of the turbine disc blade assembly.

In order to better realize the present invention, further, the outer diameter of the standard disk is divided into three sections, each section of diameter corresponds to the standard diameter size, and both ends of the central shaft are also provided with top positioning holes for fixing them.

In order to better realize the present invention, further, the bridge measuring device further includes a measuring shell covered on the lower part of the dial indicator and fixed with the dial indicator, the measuring shell is fixed in the through hole in the middle of the beam, A measuring rod is arranged inside the measuring shell, the top of the measuring rod is in contact with the measuring head at the lower part of the dial indicator, the lower part of the measuring rod extends out of the measuring shell, and the measuring shell is also provided with a spring for extending the measuring rod out of the measuring shell. , so that the measuring rod can reciprocate up and down in the measuring shell.

In order to better realize the present invention, further, the side of the beam of the bridge measuring device is further provided with longitudinal through holes, the longitudinal through holes in the beam intersect with the vertical through holes in the beam, and the inner A locking shaft is embedded in the longitudinal through hole of the beam, and the locking shaft can fix the measuring shell embedded in the vertical through hole of the beam.

In order to better realize the present invention, further, the fixed component in the component under test includes a positioning shaft embedded in the middle of the turbine disk, and the positioning shaft is sequentially nested with a first positioning sleeve, a compression sleeve from the inside to the outside The leftmost end of the positioning shaft is provided with an external thread, and the screw is connected with a locking nut. The locking nut makes the pressing sleeve press the first positioning sleeve to realize the fixation of the first positioning sleeve and the turbine disk, and then the positioning shaft is fixed. As with the turbine disc, both ends of the positioning shaft are also provided with top positioning holes.

In order to better realize the present invention, further, a washer is provided between the locking nut and the pressing sleeve.

In order to better realize the present invention, further, the right end of the positioning shaft in the component under test is a circular fixing block, and a second positioning sleeve is arranged between the circular fixing block and the turbine disk. A bushing is arranged between the turbine disk inside the sleeve and the positioning shaft, and both ends of the positioning shaft are also provided with top positioning holes.

In order to better realize the present invention, further, the support base includes a "well-shaped" base composed of square aluminum profiles, the corners of the base are also provided with corner connectors, and the upper part of the base is symmetrically arranged with two Each bottom plate is fixedly installed with a V-shaped platform in the upper middle of each of the bottom plates, and the two V-shaped platforms are symmetrically arranged.

A method for precision grinding of turbine disk blade components, using the above-mentioned device for precision measurement of turbine disk blade components to perform precise measurement on the component to be measured, thereby obtaining the processing amount that needs to be ground, The circular grinder uses the center positioning holes at both ends of the positioning shaft in the component under test for positioning, and then grinds the diameter of the turbine blade to the diameter of the standard disc in the benchmarking component.

In order to better realize the method of the present invention, further, the specific steps of performing precise measurement on the turbine disk blade assembly are:

S1: Now place the two ends of the central shaft in the benchmarking assembly on the V-shaped table of the support base, so that the standard plate in the benchmarking assembly can rotate in the air;

S2: Then place the support brackets at both ends of the bridge measuring instrument on the central axis, so that the measuring head of the dial indicator is in contact with the standard disk, and the dial indicator in the bridge measuring instrument is corrected through the outer diameter of the standard disk. Zero the dial indicator;

S3: Remove the calibrated bridge measuring instrument and the benchmarking component, and place the component under test on the V-shaped stage of the support base, so that the turbine disk of the component under test can rotate in the air;

S4: Place the calibrated bridge measuring instrument on the component under test, rotate the turbine disk, each turbine blade on the turbine disk passes through the measuring head at the lower part of the dial indicator, and record when each turbine blade passes through the measuring head, The reading of the dial indicator, which is the amount of machining that the turbine blade needs to be ground.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

(1) The present invention realizes the precise measurement of the turbine blades on the turbine disk by constructing the positional relationship between the dial indicator and the turbine disk blades, and uses the accurate reading of the dial indicator to ensure the accurate grinding process;

(2) The present invention utilizes the standard disc in the benchmark assembly to realize the zero adjustment of the dial indicator, further improving the precise measurement process of the turbine disc blade assembly, and the standard disc has multiple outer diameter standards, which can be used for different outer diameters. Calibrate and measure required turbine disk assemblies;

(3) The present invention can adjust the height of the dial indicator by optimizing the position structure of the dial indicator, and realize the precise measurement of the turbine disk components of different sizes;

(4) The present invention can overcome the technical problems of low operation accuracy and large error in the measurement of the traditional turbine disk blade assembly, which ensures the coaxiality of the turbine disk blade assembly measurement, thereby improving the accuracy, and further realizing the measurement of the turbine blade. It has the advantages of high-precision measurement and grinding, simple structure and easy operation, which is suitable for wide popularization and application.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

Fig. 1 is the southeast isometric three-dimensional structure schematic diagram of carrying out the benchmarking process in the present invention;

Fig. 2 is a schematic diagram of a northwest isometric three-dimensional structure of a benchmarking process in the present invention

3 is a schematic diagram of a southeast isometric three-dimensional structure for measuring the turbine disk blade assembly in the present invention;

4 is a schematic diagram of a northwest isometric three-dimensional structure for measuring turbine disk blade assemblies in the present invention;

Fig. 5 is the three-dimensional structure diagram of the support base in the present invention;

Fig. 6 is the three-dimensional structure diagram of the benchmarking assembly in the present invention;

Fig. 7 is the cross-sectional structure schematic diagram of the benchmark assembly in the present invention;

Fig. 8 is the three-dimensional structure diagram of the bridge measuring device in the present invention;

9 is a schematic cross-sectional structure diagram of a bridge measuring device in the present invention;

Fig. 10 is the three-dimensional structure diagram of the component under test in the present invention;

FIG. 11 is a schematic cross-sectional structure diagram of the component under test in the present invention.

Among them: 1—support base, 11—V-shaped table, 12—base, 13—corner connector, 14—base plate, 2—alignment component, 21—standard plate, 22—central axis, 3—bridge measuring device , 31—beam, 32—support frame, 33—dial indicator, 34—measurement rod, 35—measurement housing, 36—spring, 37—locking shaft, 4—tested component, 41—turbine disc, 42—positioning Shaft, 43—first locating sleeve, 44—pressing sleeve, 45—locking nut, 46—gasket, 47—second locating sleeve, 48—lining.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, the definitions of "first" and "second" are for descriptive purposes only and should not be construed to indicate or imply relative importance or to implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection or electrical connection; it can also be directly connected, or it can be indirectly connected through an intermediate medium, and it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1:

This embodiment provides a precision measuring device for a turbine disk blade assembly, the main structure of which is shown in FIG. 1 to FIG. ; The upper part of the supporting base 1 is symmetrically provided with a V-shaped stage 11 for placing the benchmarking assembly 2 or the component under test 4, as shown in Figure 5; And the central axis 22 fixed with it, as shown in Figure 6, Figure 7; the bridge measuring device 3 includes a beam 31 in the middle, the two ends of the beam 31 are fixed with support frames 32, and the bottom of the support frame 32 is provided There is a V-shaped groove matching the V-shaped table 11, and at least one vertical through hole is arranged in the middle of the upper surface of the beam 31, and a dial indicator 33 is fixedly embedded in the through hole. The head of 33 is placed on the upper part of the beam 31, and the measuring head of the dial indicator 33 is placed on the lower part of the beam 31, as shown in Figures 8 and 9; the component under test 4 includes a turbine disk 41 containing turbine blades, and a fixed turbine. The fixing assembly of the disc 41 is shown in FIG. 10 and FIG. 11 .

Based on the device for precise measurement of turbine disk blade assemblies, the process of precise measurement of turbine disk blade assemblies is as follows:

S1: Now place both ends of the central shaft 22 in the benchmarking assembly 2 on the V-shaped table 11 of the support base 1, so that the standard disk 21 in the benchmarking assembly 2 can be suspended and rotated;

S2: Then place the support brackets 32 at both ends of the bridge measuring device 3 on the central axis 22, so that the measuring head of the dial indicator 33 is in contact with the standard disc 21, and the outer diameter of the standard disc 21 is used to measure the bridge measuring device 3. The dial indicator 33 is corrected, and the dial indicator 33 is zeroed, as shown in Figure 1 and Figure 2;

S3: Remove the calibrated bridge measuring instrument 3 and the benchmarking assembly 2, and place the measured component 4 on the V-shaped table 11 of the support base 1, so that the turbine disk 41 of the measured component 4 can rotate in the air;

S4: Place the calibrated bridge measuring instrument 3 on the component under test 4, rotate the turbine disk 41, each turbine blade on the turbine disk 41 passes through the lower measuring head of the dial indicator 33, and record each turbine blade When passing through the measuring head, the reading of the dial indicator 33 is the processing amount of the turbine blade that needs to be ground, as shown in Figure 3 and Figure 4.

Example 2:

On the basis of the above-mentioned embodiment, this embodiment further defines the structure of the benchmarking assembly 2. As shown in FIG. 6 and FIG. 7 , the outer diameter of the standard disk 21 is divided into three sections, and the diameter of each section corresponds to the standard diameter size. Both ends of the central shaft 22 are also provided with top positioning holes for fixing them. The standard disk 21 has a plurality of outer diameter standards, which can be used to calibrate and measure turbine disk assemblies with different outer diameter requirements. The other parts of this embodiment are the same as the above-mentioned embodiments, and are not repeated here.

Example 3:

On the basis of the above-mentioned embodiments, this embodiment further defines the structure of the bridge measuring device 3. As shown in FIG. 8 and FIG. The measuring shell 35 to which the dial indicator 33 is fixed, the measuring shell 35 is fixed in the through hole in the middle of the beam 31, and a measuring rod 34 is arranged inside the measuring shell 35, and the top of the measuring rod 34 and the lower part of the dial indicator are measured When the head contacts, the lower part of the measuring rod 34 extends out of the measuring shell 35 . The measuring shell 35 is also provided with a spring 36 for extending the measuring rod 34 out of the measuring shell 35 , so that the measuring rod 34 can reciprocate up and down in the measuring shell 35 . The structure of the measuring shell 35 and the measuring rod 34 is added to avoid damage to the dial indicator 33 . The other parts of this embodiment are the same as the above-mentioned embodiments, and are not repeated here.

Example 4:

On the basis of the above-mentioned embodiments, this embodiment further defines the structure of the bridge measuring device 3. As shown in FIG. 8 and FIG. The longitudinal through hole in the beam 31 intersects with the vertical through hole in the beam 31 , and a locking shaft 36 is inserted into the longitudinal through hole in the beam 31 , and the locking shaft 36 can be inserted into the beam 31 . The measurement housing 35 in the vertical through hole is fixed. The other parts of this embodiment are the same as the above-mentioned embodiments, and are not repeated here.

Example 5:

On the basis of the above-mentioned embodiments, this embodiment further defines the structure of the component under test 4. As shown in FIGS. 10 and 11, the fixed component in the component under test 4 includes a positioning shaft 42 embedded in the middle of the turbine disk 41, The positioning shaft 42 is sequentially nested with a first positioning sleeve 43 and a pressing sleeve 44 from the inside to the outside. The leftmost end of the positioning shaft 42 is provided with an external thread, and is threadedly connected with a locking nut 45. The pressing sleeve 44 presses the first positioning sleeve 43 to realize the fixation of the first positioning sleeve 43 and the turbine disk 41, and further fixes the positioning shaft 42 and the turbine disk. The two ends of the positioning shaft 42 are also provided with top positioning holes. The other parts of this embodiment are the same as the above-mentioned embodiments, and are not repeated here.

Example 6:

On the basis of the above-mentioned embodiments, this embodiment further defines the structure of the component under test 4 , as shown in FIGS. 10 and 11 , a washer 46 is further provided between the locking nut 45 and the compression sleeve 44 . The other parts of this embodiment are the same as the above-mentioned embodiments, and are not repeated here.

Example 7:

On the basis of the above-mentioned embodiment, this embodiment further defines the structure of the component under test 4. As shown in FIG. 10 and FIG. 11 , the right end of the positioning shaft 42 in the component under test 4 is a circular fixing block. A second positioning sleeve 47 is arranged between the block and the turbine disk 41, a bushing 48 is arranged between the turbine disk 41 and the positioning shaft 42 inside the second positioning sleeve 47, and the two ends of the positioning shaft 42 are also provided with top positioning holes . The other parts of this embodiment are the same as the above-mentioned embodiments, and are not repeated here.

Example 8:

This embodiment further defines the structure of the support base 1 on the basis of the above-mentioned embodiments. As shown in FIG. 5 , the support base 1 includes a “well-shaped” base 12 composed of square aluminum profiles. The base 12 There is also a corner connector 13 at the corner of the base 12 , two bottom plates 14 are symmetrically arranged on the upper part of the base 12 , a V-shaped table 11 is fixedly installed in the upper middle of each of the bottom plates 14 , and the two V-shaped tables 11 are arranged symmetrically. The other parts of this embodiment are the same as the above-mentioned embodiments, and are not repeated here.

Example 9:

This embodiment provides a method for precision grinding of a turbine disk blade assembly, and the specific process is to use the device for precise measurement of a turbine disk blade assembly described in the previous embodiment to perform precision grinding on the component under test 4 Measure, thus obtain the processing amount that needs to be ground, and use the cylindrical grinder to use the top positioning holes at both ends of the positioning shaft 42 in the component under test 4 for positioning, and then grind the diameter of the turbine blade to the standard disk 22 in the benchmarking component 2. diameter of. The specific steps for the precise measurement of the turbine disk blade assembly are the same as those in the above-mentioned embodiment, and are not repeated here.

It can be understood that the structure of the device for precision grinding of turbine disk blade assemblies according to an embodiment of the present invention, such as the working principle and working process of components such as the dial indicator 33 and the spring 37, are all in the prior art, and are based on the present technology. It is well known to those skilled in the art and will not be described in detail here.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope is defined by the claims and their equivalents.

Claims (10)

1. A device for precise measurement of a turbine disk blade assembly, characterized in that it comprises a support base (1), a benchmarking assembly (2), a bridge measuring device (3), and a measured assembly (4); The upper part of the support base (1) is symmetrically provided with a V-shaped table (11) on which the benchmarking component (2) or the component under test (4) is placed; The benchmarking assembly (2) includes a standard disc (21) in the middle, and a central shaft (22) penetrating the standard disc (21) and fixed thereto; The bridge-type measuring device (3) includes a cross beam (31) in the middle, a support frame (32) is fixed at both ends of the cross beam (31), and the bottom of the support frame (32) is provided with a V-shaped table (11) A matching V-shaped groove, at least one vertical through hole is arranged in the middle of the upper surface of the beam (31), and a dial indicator (33) is fixedly embedded in the through hole, and the dial indicator (33) ) is placed on the upper part of the beam (31), and the measuring head of the dial indicator (33) is placed on the lower part of the beam (31); The component under test (4) includes a turbine disk (41) containing turbine blades, and a fixing component for fixing the turbine disk (41). 2. A device for precise measurement of turbine disk blade assemblies according to claim 1, wherein the outer diameter of the standard disk (21) is divided into three sections, and the diameter of each section corresponds to the standard diameter size, so Both ends of the central shaft (22) are also provided with top positioning holes for fixing them. 3. A device for precise measurement of turbine disk blade assemblies according to claim 2, characterized in that the bridge measuring device (3) further comprises a lower part of the dial indicator (33) covered with A measuring shell (35) to which the dial indicator (33) is fixed, the measuring shell (35) is fixed in the through hole in the middle of the beam (31), and a measuring rod (34) is arranged inside the measuring shell (35), so The top of the measuring rod (34) is in contact with the measuring head at the lower part of the dial indicator, the lower part of the measuring rod (34) extends out of the measuring casing (35), and the measuring casing (35) is also provided with a measuring rod (34) extending out The spring (36) of the measuring shell (35) enables the measuring rod (34) to reciprocate up and down in the measuring shell (35). 4 . The device for precise measurement of turbine disk blade assemblies according to claim 3 , wherein a longitudinal through hole is further provided on the side of the beam ( 31 ) of the bridge measuring device ( 3 ). 5 . The longitudinal through holes in the beam (31) intersect with the vertical through holes in the beam (31), and a locking shaft (37) is inserted into the longitudinal through holes in the beam (31), and the locking shaft (37) The measuring shell (35) embedded in the vertical through hole of the beam (31) can be fixed. 5. A device for precise measurement of turbine disk blade assemblies according to any one of claims 1 to 4, characterized in that the fixed assembly in the component under test (4) comprises a device embedded in the turbine disk (4). 41) The positioning shaft (42) in the middle, the positioning shaft (42) is sequentially nested with a first positioning sleeve (43) and a pressing sleeve (44) from the inside to the outside, and the leftmost end of the positioning shaft (42) is provided with an outer thread, and a locking nut (45) is threadedly connected, and the locking nut (45) makes the pressing sleeve (44) press the first positioning sleeve (43), so as to realize the connection between the first positioning sleeve (43) and the turbine disk (43). 41), thereby fixing the positioning shaft (42) and the turbine disk, and the two ends of the positioning shaft (42) are also provided with top positioning holes. 6 . The device for precise measurement of turbine disk blade assemblies according to any one of claims 5 , wherein a gasket is further provided between the locking nut ( 45 ) and the pressing sleeve ( 44 ). 7 . Pieces (46). 7. The device for precise measurement of turbine disk blade assemblies according to any one of claims 1 to 4, wherein the right end of the positioning shaft (42) in the measured assembly (4) is circular A fixed block, a second positioning sleeve (47) is arranged between the circular fixed block and the turbine disk (41), the turbine disk (41) inside the second positioning sleeve (47) and the positioning shaft (42) A bushing (48) is arranged between the two ends of the positioning shaft (42), and top positioning holes are also arranged at both ends of the positioning shaft (42). 8 . The device for precise measurement of turbine disk blade assemblies according to claim 1 , wherein the support base ( 1 ) comprises a “well-shaped” base composed of square aluminum profiles. 9 . A seat (12), a corner connector (13) is also provided at the corner of the base (12), and two bottom plates (14) are symmetrically arranged on the upper part of the base (12), each of which is above the bottom plate (14). A V-shaped stage (11) is fixedly installed in the middle, and the two V-shaped stages (11) are symmetrically arranged. 9. A method for precision grinding of turbine disk blade assemblies, characterized in that a device for precision measurement of turbine disk blade assemblies according to any one of claims 1 to 8 is used to measure the components ( 4) Carry out precise measurement to obtain the machining amount that needs to be ground. Use the cylindrical grinder to use the top positioning holes at both ends of the positioning shaft (42) in the component under test (4) for positioning, and then grind the diameter of the turbine blade to The diameter of the standard disc (22) in the benchmark assembly (2). 10. A method for precision grinding of turbine disk blade assemblies according to claim 9, wherein the specific steps of performing precise measurement on the turbine disk blade assemblies are: S1: Now place both ends of the central shaft (22) in the benchmark assembly (2) on the V-shaped table (11) of the support base (1), so that the standard plate (21) in the benchmark assembly (2) is aligned able to rotate in the air; S2: Then place the support brackets (32) at both ends of the bridge measuring device (3) on the central axis (22), so that the measuring head of the dial indicator (33) is in contact with the standard disc (21), through the standard disc ( 21) calibrate the dial indicator (33) in the bridge measuring device (3), and set the dial indicator (33) to zero; S3: Remove the calibrated bridge measuring instrument (3) and the benchmarking component (2), and place the component under test (4) on the V-shaped table (11) of the support base (1), so that the component under test ( 4) The turbine disk (41) can rotate in the air; S4: Place the calibrated bridge measuring device (3) on the component under test (4), turn the turbine disk (41), and each turbine blade on the turbine disk (41) is read from the dial indicator (33) The lower measuring head passes, record the reading of the dial indicator (33) when each turbine blade passes the measuring head, the reading is the processing amount of the turbine blade that needs to be ground.

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