A method for detecting the manufacturing precision of a wind tunnel honeycomb module

Abstract

The application provides a method for detecting the manufacturing precision of a wind tunnel honeycomb module, comprising the following steps: placing the honeycomb module on a measuring platform and adjusting it; locking the honeycomb module, checking the shape size deviation and the parallelism of the edges of each honeycomb tube; pre-processing a plurality of hexagonal detection rods matched with the honeycomb tubes; inserting the plurality of hexagonal detection rods into the plurality of honeycomb tubes respectively and marking the measuring position points, inserting the hexagonal detection rods into the honeycomb tubes, and vertically placing an electronic angle gauge on the hexagonal detection rods; using the electronic angle gauge to measure the pitch angle of each measuring position point in sequence, recording each group of data and comparing and analyzing to evaluate the pitch angle deviation of each honeycomb tube; rotating the whole honeycomb module clockwise by 90 degrees, repeating the steps of the previous step; and judging the manufacturing quality of a single honeycomb module. The method effectively solves the problem that the manufacturing precision of the internal honeycomb tubes of a high-precision and dense honeycomb module is inconvenient to measure.

Description

Technical Field

[0001] This application relates to the field of wind tunnels, and more particularly to a method for detecting the manufacturing precision of wind tunnel cellular modules. Background Technology

[0002] A wind tunnel is a device that uses a power unit to drive a controlled airflow within a pipe system designed according to specific requirements, conducting various aerodynamic tests based on the principles of relativity and similarity of motion. To ensure the uniformity of airflow and reduce turbulence within the test section of the wind tunnel, honeycomb structures are installed in the stable section to separate larger airflow vortices, thereby reducing turbulence. Because the cross-section of the wind tunnel is large, the honeycomb structure cannot be manufactured as a single unit; therefore, the entire cross-section must be divided into multiple unit modules. Thus, ensuring the manufacturing precision of each individual module and conducting effective testing are crucial to the manufacturing of the honeycomb structure. Summary of the Invention

[0003] This application provides a method for detecting the manufacturing precision of a wind tunnel honeycomb module, aiming to solve the problem that the manufacturing precision of a single honeycomb module in a wind tunnel is difficult to measure accurately.

[0004] The technical solution of this application is:

[0005] A method for precision testing in the manufacturing of wind tunnel cellular modules includes the following steps:

[0006] S1. First, adjust the measuring platform, and then adjust the perpendicularity between the positioning block and the measuring platform;

[0007] S2, Place the honeycomb module on the measuring platform and adjust the honeycomb module so that the perpendicularity between the air outlet section of the honeycomb module and the measuring platform is less than or equal to 0.02°;

[0008] S3, use an adjustable fixing block to fix and lock the frame of the honeycomb module, randomly select multiple honeycomb tubes in the cross section of the honeycomb module, check the dimensional deviation and parallelism of each honeycomb tube, so that the deviation of the parallelism between the central axes of two adjacent honeycomb tubes meets the requirement of less than or equal to ±0.25°.

[0009] S4, pre-processing multiple hexagonal detection rods that match the honeycomb tube;

[0010] S5, randomly insert multiple hexagonal detection rods into multiple corresponding honeycomb tubes and mark the measurement position points. During measurement, insert hexagonal detection rods into the honeycomb tubes and place an electronic angle meter vertically on the hexagonal detection rods. Use the electronic angle meter to measure the pitch angle of each measurement position point in sequence. Record each set of data and compare and analyze to evaluate the pitch angle deviation of each honeycomb tube.

[0011] S6, rotate the entire honeycomb module clockwise by 90°, and adjust the honeycomb cross section on the air outlet side of the honeycomb module to be perpendicular to the upper surface of the measuring platform, and use the adjustable fixing block to fix and lock the frame of the honeycomb module.

[0012] S7, insert the hexagonal detection rod into the corresponding marked honeycomb tubes again and mark the measurement position points. During measurement, insert the hexagonal detection rod into the honeycomb tube and place the electronic angle meter vertically on the hexagonal detection rod. Use the electronic angle meter to measure the pitch angle of each measurement position point in sequence. Record each set of data and compare and analyze to evaluate the pitch angle deviation of each honeycomb tube.

[0013] S8. By comprehensively evaluating the deviation values ​​between the pitch angles of multiple random cellular tubes and the standard value, and the deviation values ​​between the yaw angles of multiple cellular tubes and the standard value, the manufacturing quality of a single cellular module is determined.

[0014] As a technical solution of this application, in step S1, the measuring platform is first adjusted so that the error range of the measuring platform is less than or equal to 0.03°, and then the perpendicularity deviation between the positioning block and the measuring platform is adjusted to be less than or equal to 0.01°.

[0015] As a technical solution of this application, in step S2, the position of the honeycomb module is adjusted by using a precision angle ruler or feeler gauge so that the perpendicularity between the air outlet section of the honeycomb module and the measuring platform is less than or equal to 0.02°.

[0016] As one technical solution of this application, in step S4, the length of the hexagonal detection rod is 200mm longer than the length of the honeycomb tube, and the end of the hexagonal detection rod is chamfered.

[0017] As one technical solution of this application, in step S5, the size of the honeycomb cross-section exposed on the air outlet side of the honeycomb module is greater than or equal to 120mm.

[0018] As one technical solution of this application, in step S7, the size of the exposed honeycomb cross-section of the honeycomb module on the air outlet side of the honeycomb module is greater than or equal to 120mm. Beneficial effects of this application:

[0019] This application provides a method for inspecting the manufacturing precision of wind tunnel honeycomb modules. It employs a combination of hexagonal testing rods with identical cross-sections and honeycomb tubes, along with electronic angle measuring instruments. This effectively solves the problem of inconvenient measurement of the manufacturing precision of honeycomb tubes within high-precision, dense honeycomb modules. Furthermore, during the measurement process, the method allows for convenient differentiation of the pitch and yaw angles of the honeycomb tubes by adjusting the angle of the honeycomb module on the measurement platform. This facilitates rapid and standardized testing of these two key technical indicators of the honeycomb tubes, resulting in high efficiency, speed, and accuracy. In addition, the method uses a combination of positioning blocks and adjustable fixing blocks to fix the honeycomb module, making adjustments quick and accurate, thereby significantly improving testing efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the measurement of the cellular module provided in an embodiment of this application;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a schematic diagram of measuring the first angle of the cellular module provided in an embodiment of this application.

[0024] Icons: 1-Cellular module; 2-Positioning block; 3-Adjustable fixing block; 4-Measuring platform; 5-Hexagonal detection rod; 6-Electronic angle meter; 7-Cellular tube. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this application, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only used to facilitate the description of this application and to simplify 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 this application.

[0029] Furthermore, in this application, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Moreover, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Example:

[0033] Please refer to Figure 1 (Refer to) Figures 2 to 3 This application provides a method for manufacturing precision testing of wind tunnel cellular modules, comprising the following steps:

[0034] S1. First, adjust the measuring platform 4 so that the error range of the measuring platform 4 is less than or equal to 0.03°, and then adjust the perpendicularity deviation between the positioning block 2 and the measuring platform 4 to be less than or equal to 0.01°.

[0035] S2, place the honeycomb module 1 on the measuring platform 4, adjust the position of the honeycomb module 1 using a precision angle ruler or feeler gauge, so that the perpendicularity between the air outlet section of the honeycomb module 1 and the measuring platform 4 is less than or equal to 0.02°.

[0036] S3, the adjustable fixing block 3 is used to fix and lock the frame of the cell module 1. Multiple cell tubes 7 are randomly sampled in the cross section of the cell module 1 to check the dimensional deviation and parallelism of each cell tube 7, so that the deviation of the parallelism (i.e., pitch angle and yaw angle) between the central axes of adjacent cell tubes 7 meets the requirement of less than or equal to ±0.25°.

[0037] S4. Pre-process multiple hexagonal detection rods 5 that match the honeycomb tube 7, so that the length of the hexagonal detection rod 5 is 200mm longer than the length of the honeycomb tube 7, and the ends of the hexagonal detection rod 5 need to be chamfered at a certain angle, which is conducive to the smooth insertion of the hexagonal detection rod 5 into the honeycomb tube 7. In addition, the hexagonal detection rod 5 is made of lightweight aluminum alloy material to avoid damage to the honeycomb tube 7.

[0038] S5, randomly insert multiple hexagonal probes 5 into multiple corresponding honeycomb tubes 7 and mark the measurement positions. During measurement, insert the hexagonal probes 5 into the honeycomb tubes 7, adjust the size of the honeycomb cross-section exposed on the air outlet side of the honeycomb module 1 to be greater than or equal to 120mm, and place the electronic angle meter 6 vertically on the hexagonal probes 5 without tilting. Use the electronic angle meter 6 to measure the pitch angle of each measurement position point in sequence, that is, the pitch angle of each honeycomb tube 7 relative to its respective measurement platform 4. By recording each set of data and comparing and analyzing them, the pitch angle deviation of each honeycomb tube 7 is evaluated. That is, the pitch angle of each honeycomb tube 7 relative to the measurement platform 4 can be determined by the value of the electronic angle meter 6. When the measured value meets the specified range, it is acceptable.

[0039] S6, rotate the entire honeycomb module 1 clockwise by 90°, and adjust the honeycomb section on the air outlet side of the honeycomb module 1 to be perpendicular to the upper surface of the measuring platform 4. Use the adjustable fixing block 3 to fix and lock the frame of the honeycomb module 1.

[0040] S7, insert the hexagonal probe 5 into the corresponding marked honeycomb tubes 7 again and mark the measurement positions. During measurement, insert the hexagonal probe 5 into the honeycomb tube 7, adjust the size of the honeycomb cross section exposed on the air outlet side of the honeycomb module 1 to be greater than or equal to 120mm, and place the electronic angle meter 6 vertically on the hexagonal probe 5 without tilting; use the electronic angle meter 6 to measure the pitch angle of each measurement position in sequence, record each set of data and compare and analyze to evaluate the pitch angle deviation of each honeycomb tube 7;

[0041] S8 determines the manufacturing quality of a single cell module 1 by comprehensively evaluating the deviations between the pitch angles of multiple random cell tubes 7 and the standard value, and the deviations between the yaw angles of multiple cell tubes 7 and the standard value.

[0042] It should be noted that in step S3, since each cell module 1 is assembled from multiple cell tubes 7 and each cell tube 7 has a central axis, when it is necessary to check whether the central axes between two adjacent cell tubes 7 are parallel, it can be determined by inserting a hexagonal detection rod 5 into the cell tube 7 to measure the distance between two adjacent hexagonal detection rods 5, or by using the value displayed on the electronic angle meter 6 placed on the hexagonal detection rod 5.

[0043] It should be noted that in step S8, the angle deviation design will be given a range, and the magnitude of the deviation depends on the precision of the wind tunnel design. As long as the angle deviation is within the range, it is acceptable.

[0044] In summary, this application provides a method for inspecting the manufacturing precision of wind tunnel honeycomb modules. It employs a combination of hexagonal testing rods 5 with the same cross-section and honeycomb tubes 7, and uses an electronic angle meter 6 for measurement. This effectively solves the problem of inconvenient measurement of the manufacturing precision of the honeycomb tubes 7 inside high-precision, dense honeycomb modules 1. Furthermore, during the measurement process, the angle of the honeycomb module 1 can be easily adjusted on the measurement platform 4 to distinguish the pitch and yaw angles of the honeycomb tubes 7, facilitating rapid and unified detection of these two key technical indicators. This method is efficient, fast, and accurate. In addition, the method uses a combination of positioning blocks 2 and adjustable fixing blocks 3 to fix the honeycomb module 1, making adjustment quick and accurate, thereby greatly improving the inspection efficiency.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for precision testing in the manufacturing of wind tunnel honeycomb modules, characterized in that, Includes the following steps: S1. First, adjust the measuring platform, and then adjust the perpendicularity between the positioning block and the measuring platform; S2, Place the honeycomb module on the measuring platform and adjust the honeycomb module so that the perpendicularity between the air outlet section of the honeycomb module and the measuring platform is less than or equal to 0.02°; S3, use an adjustable fixing block to fix and lock the frame of the honeycomb module, randomly select multiple honeycomb tubes in the cross section of the honeycomb module, check the dimensional deviation and parallelism of each honeycomb tube, so that the deviation of the parallelism between the central axes of two adjacent honeycomb tubes meets the requirement of less than or equal to ±0.25°. S4, pre-processing multiple hexagonal detection rods that match the honeycomb tube; S5, randomly insert multiple hexagonal detection rods into multiple corresponding honeycomb tubes and mark the measurement position points. During measurement, insert the hexagonal detection rods into the honeycomb tubes and place the electronic angle meter vertically on the hexagonal detection rods. Use the electronic angle meter to measure the pitch angle of each measurement position point in sequence. Record each set of data and compare and analyze to evaluate the pitch angle deviation of each honeycomb tube. S6, rotate the entire honeycomb module clockwise by 90°, and adjust the honeycomb cross section on the air outlet side of the honeycomb module to be perpendicular to the upper surface of the measuring platform, and use the adjustable fixing block to fix and lock the frame of the honeycomb module. S7, insert the hexagonal detection rod into the corresponding marked honeycomb tubes again and mark the measurement position points. During measurement, insert the hexagonal detection rod into the honeycomb tube and place the electronic angle meter vertically on the hexagonal detection rod. Use the electronic angle meter to measure the yaw angle of each measurement position point in sequence. Record each set of data and compare and analyze to evaluate the yaw angle deviation of each honeycomb tube. S8. By comprehensively evaluating the deviation values ​​between the pitch angles of multiple random cellular tubes and the standard value, and the deviation values ​​between the yaw angles of multiple cellular tubes and the standard value, the manufacturing quality of a single cellular module is determined.

2. The method for detecting the manufacturing precision of wind tunnel honeycomb modules according to claim 1, characterized in that, In step S1, the measuring platform is first adjusted so that the error range of the measuring platform is less than or equal to 0.03°, and then the perpendicularity deviation between the positioning block and the measuring platform is adjusted to be less than or equal to 0.01°.

3. The method for detecting the manufacturing precision of wind tunnel honeycomb modules according to claim 1, characterized in that, In step S2, the position of the honeycomb module is adjusted using a precision angle gauge or feeler gauge so that the perpendicularity between the air outlet section of the honeycomb module and the measuring platform is less than or equal to 0.02°.

4. The method for detecting the manufacturing precision of wind tunnel honeycomb modules according to claim 1, characterized in that, In step S4, the length of the hexagonal detection rod is 200mm longer than the length of the honeycomb tube, and the end of the hexagonal detection rod is chamfered.

5. The method for detecting the manufacturing precision of wind tunnel honeycomb modules according to claim 1, characterized in that, In step S5, the size of the honeycomb cross-section exposed on the air outlet side of the honeycomb module is greater than or equal to 120 mm.

6. The method for detecting the manufacturing precision of wind tunnel honeycomb modules according to claim 1, characterized in that, In step S7, the size of the honeycomb cross-section exposed on the air outlet side of the honeycomb module is greater than or equal to 120 mm.

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