Detection device for aircraft engine turbine blades

Abstract

The present invention is applicable to the technical field of turbine detection devices, and provides a detection device for aircraft engine turbine blades, including a base; a height adjustment mechanism arranged at the side position of the upper surface of the base; and a detection body arranged beside the height adjustment mechanism; the height adjustment mechanism includes a mounting frame, a screw rod, a lifting block, a receiving block, a mounting connecting rod and a fastening sleeve arranged at the upper edge position of the base; the design of the detection frame of the present invention enables a single blade to be rotated into the detection area in sequence and orderly, realizing all-round and multi-angle detection, and the height adjustment mechanism realizes flexible adjustment of the relative height of the turbine blade body, which is not only convenient for loading and unloading, but also can effectively detect blades of different sizes. In addition, the adjustable spacing function of the fastening sleeve enables it to adapt to turbine blade bodies of different sizes, ensuring the firmness of the blade on the mounting connecting rod and the stability during the detection process.

Description

Technical Field

[0001] The invention belongs to the technical field of turbine detection devices, and in particular relates to a detection device for aircraft engine turbine blades. Background Art

[0002] In the modern aviation industry, the performance and reliability of aircraft engines are directly related to flight safety and efficiency. As a key component of aircraft engines, the quality and performance of turbine blades play a vital role in the operation of the entire engine system. Turbine blades are subjected to huge mechanical and thermal stresses in an extremely high temperature, high pressure and high-speed rotating working environment. Therefore, the manufacturing accuracy and surface quality requirements are extremely high.

[0003] However, traditional turbine blade inspection methods have many shortcomings. On the one hand, manual inspection is not only inefficient, but also difficult to ensure the accuracy and consistency of inspection. On the other hand, existing automated inspection devices can often only inspect turbine blades at a single angle or a limited angle, and cannot achieve all-round and multi-angle inspection of a single blade, making it difficult to detect tiny defects and deformations on the blade surface.

[0004] In addition, due to the different sizes and shapes of turbine blades, traditional detection devices also have great limitations in adaptability and flexibility. Turbine blades of different sizes require different detection equipment and tooling, which not only increases the detection cost but also reduces the detection efficiency. Summary of the invention

[0005] The present invention provides a detection device for aircraft engine turbine blades, aiming to solve the problems that traditional turbine blade detection methods have the following shortcomings: low efficiency, difficulty in ensuring accuracy, limited detection angle, and insufficient adaptability and flexibility, which make it difficult to detect tiny defects and deformations, while increasing detection costs and reducing detection efficiency.

[0006] The present invention is implemented as follows: a detection device for aircraft engine turbine blades includes a base; a height adjustment mechanism arranged at a side position of the upper surface of the base; and a detection body arranged beside the height adjustment mechanism; wherein the height adjustment mechanism includes: a mounting frame arranged at an upper edge position of the base; a screw rod rotating between the mounting frames, the screw rod having a lifting block threadedly engaged; a receiving block arranged on the outer wall of the lifting block; a mounting connecting rod rotatingly engaged at a side position of the receiving block away from the lifting block; a group of fastening sleeves are sleeved on the mounting connecting rod; the fastening sleeves include: a mounting ring sleeved on the mounting connecting rod; electric push rods are arranged on the outer walls of the mounting ring on opposite sides; the telescopic ends of the two electric push rods extend to the inner cavity position of the mounting ring and are respectively connected to a fastening ring.

[0007] Preferably, a group of guide rods are symmetrically arranged on both sides of the mounting frame, and the lifting block is in sliding fit with the two guide rods.

[0008] Preferably, the detection body includes: an extension bracket arranged on the base; a plurality of threaded holes are opened through the upper position of the extension bracket; a detection frame is threadedly engaged with one of the threaded holes through a fastening bolt, and the upper end surface and the lower end surface of the detection frame are open and interconnected.

[0009] Preferably, the detection body further comprises: a laser scanning sensor arranged at the inner end of the detection frame; and visual sensors arranged at both sides of the detection frame.

[0010] Preferably, a display panel is provided on a side of the detection frame away from the detection frame, a microprocessor is integrated in the display panel, and the display panel is electrically connected to the detection body and the height adjustment mechanism.

[0011] Preferably, a first motor is disposed at the top of the mounting bracket, and an output end of the first motor is fixedly connected to an end key of the screw rod.

[0012] Preferably, a second motor is arranged in the receiving block, and an output end of the second motor is fixedly connected to an end key of the mounting connecting rod.

[0013] Preferably, the fastening ring is arranged in an arc shape, and a rubber pad is arranged at the bottom side of the fastening ring.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0015] Firstly, the design of the detection frame of the device enables several single blades of the turbine blade body to be rotated into the detection frame in sequence and orderly, which is convenient for all-round and multi-angle detection of the single blades. The detection data is processed in real time by the microprocessor and displayed on the display panel, so that the operator can immediately understand the detection status of the turbine blades and make judgments and decisions in time. This mechanism of all-round detection and instant feedback greatly improves the detection efficiency and accuracy, and provides a strong guarantee for the quality control of turbine blades.

[0016] Second: The height adjustment mechanism of the device realizes flexible adjustment of the relative height of the turbine blade body, which not only improves the convenience of loading and unloading the turbine blade body, but also ensures that turbine blade bodies of different sizes can be effectively detected. At the same time, the design of the guide rod greatly enhances the stability of the lifting block during movement, preventing errors caused by shaking or offset, thereby ensuring the accuracy and reliability of the detection work.

[0017] Third: The fastening sleeve of this device has the function of adjustable spacing. This feature enables it to adapt to turbine blade bodies of different sizes. By adjusting the fastening sleeve, it can ensure that the turbine blade body is firmly mounted on the mounting rod, and then the detection work can be carried out smoothly. This design not only improves the flexibility and applicability of the device, but also ensures the stability and accuracy of the turbine blade body during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 is a side view of the present invention;

[0021] Figure 4 is a top view of the present invention;

[0022] Figure 5 is a front view of the present invention;

[0023] In the figure: 1. base; 2. mounting frame; 3. screw; 4. lifting block; 5. receiving block; 6. mounting rod; 7. fastening sleeve; 8. mounting ring; 9. electric push rod; 10. fastening ring; 11. guide rod; 12. extension bracket; 13. threaded hole; 14. fastening bolt; 15. detection frame; 16. laser scanning sensor; 17. visual sensor; 18. display panel; 19. first motor; 20. second motor; 21. rubber pad. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] The embodiment of the present invention provides a detection device for aircraft engine turbine blades, such as Figure 1-5 As shown, it includes a base 1; a height adjustment mechanism arranged at the side position of the upper surface of the base 1; and a detection body arranged beside the height adjustment mechanism; wherein the height adjustment mechanism includes: a mounting frame 2 arranged at the upper edge position of the base 1; a screw rod 3 rotating between the mounting frames 2, and a lifting block 4 threadedly matched on the screw rod 3; a receiving block 5 arranged on the outer wall of the lifting block 4; a mounting connecting rod 6 is rotatably matched at a side position of the receiving block 5 away from the lifting block 4; a group of fastening sleeves 7 are sleeved on the mounting connecting rod 6; the fastening sleeve 7 includes: a mounting ring 8 sleeved on the mounting connecting rod 6; electric push rods 9 are arranged on the outer walls of the mounting ring 8 on both sides; the telescopic ends of the two electric push rods 9 extend to the inner cavity position of the mounting ring 8 and are respectively connected to a fastening ring 10.

[0027] It should be noted that due to the continuous shortcomings of traditional turbine blade detection methods such as low efficiency, difficulty in ensuring accuracy, limited detection angle, and insufficient adaptability and flexibility, it is difficult to detect minor defects and deformations, while increasing the detection cost and reducing the detection efficiency. The present solution greatly improves the flexibility, accuracy and efficiency of turbine blade detection; specifically, the design of the detection frame 15 enables a single blade to be rotated into the detection area in sequence and orderly, realizing all-round and multi-angle detection. At the same time, the detection data is fed back in real time through the microprocessor, so that the operator can quickly grasp the blade condition and make decisions in time, which greatly improves the accuracy and efficiency of the detection; the height adjustment mechanism ensures that turbine blade bodies of different sizes can be flexibly adjusted to the optimal detection position, and the design of the guide rod 11 further enhances the stability during the movement, thereby ensuring the accuracy and reliability of the detection work; in addition, the adjustable spacing function of the fastening sleeve 7 enables the device to adapt to turbine blade bodies of various sizes, ensuring stability and accuracy during the detection process.

[0028] Specifically, in this embodiment, the present solution mainly includes a base 1; the base 1 serves as the basis of the entire detection device and provides a stable support platform; a height adjustment mechanism is provided on the side of the upper surface of the base 1, and the mechanism is used to adjust the relative height of the turbine blade body to adapt to the installation requirements of turbine blades of different sizes, thereby meeting the detection requirements;

[0029] The height adjustment mechanism includes a mounting frame 2 fixed to the upper edge of the base 1, and a screw rod 3 rotating between the mounting frame 2; the screw rod 3 is connected to the lifting block 4 by threaded engagement, and when the screw rod 3 rotates, the lifting block 4 moves up and down along the axial direction of the screw rod 3 to achieve flexible height adjustment;

[0030] The outer wall of the lifting block 4 is provided with a receiving block 5, and the receiving block 5 is rotatably matched with a mounting connecting rod 6 at a side away from the lifting block 4; the mounting connecting rod 6 is designed to connect and support the turbine blade body to ensure that the turbine blade body can remain stable when adjusting the height;

[0031] In order to fix the turbine blade body and prevent it from shaking or shifting during operation, a fastening sleeve 7 is specially provided; when the turbine blade body is installed on the mounting connecting rod 6, the two mounting rings 8 are first slid to fit on both sides of the turbine blade body; then, through the action of the electric push rod 9, the two fastening rings 10 are moved inward to tightly clamp the mounting connecting rod 6, thereby achieving a firm fixation of the turbine blade body.

[0032] In a further preferred embodiment of the present invention, Figure 1-2 As shown, a group of guide rods 11 are symmetrically arranged on both sides of the mounting frame 2 , and the lifting block 4 is in sliding fit with the two guide rods 11 .

[0033] In this embodiment, this means that when the screw rod 3 rotates, the lifting block 4 not only moves up and down along the axial direction of the screw rod 3, but also slides smoothly along the guide rod 11 at the same time. This design greatly enhances the stability of the lifting block 4 during movement and prevents errors caused by shaking or offset.

[0034] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the detection body includes: an extension bracket 12 arranged on the base 1; a plurality of threaded holes 13 are penetrated through the upper position of the extension bracket 12; a detection frame 15 is threadedly engaged with a fastening bolt 14 in one of the threaded holes 13, and the upper end surface and the lower end surface of the detection frame 15 are open settings that are interconnected.

[0035] In this embodiment, by selecting different positions of the threaded holes 13, the installation point of the detection frame 15 on the extension bracket 12 can be flexibly adjusted, thereby realizing the adjustment of the height and the tilt angle of the detection frame 15 to adapt to turbine blade bodies of different sizes and shapes; in one of the selected threaded holes 13, the detection frame 15 is threadedly matched with the extension bracket 12 through the fastening bolts 14, and this connection method ensures the firmness and reliability of the installation of the detection frame 15;

[0036] The upper end surface and the lower end surface of the detection frame 15 are open structures that are interconnected. This design allows the detection frame 15 to easily accommodate the blades when the turbine blade body needs to be rotated to detect a single blade, thereby ensuring the comprehensiveness and accuracy of the detection work.

[0037] In a further preferred embodiment of the present invention, Figure 4As shown, the detection body also includes: a laser scanning sensor 16 (TIM320-0131000S02) arranged at the inner end of the detection frame 15; and a visual sensor 17 (IS7400-01) arranged at both sides of the detection frame 15.

[0038] In this embodiment, after a single turbine blade is rotated to a predetermined position in the detection frame 15, the laser scanning sensor 16 accurately scans the surface of the turbine blade, thereby obtaining key geometric parameters reflecting the size, shape and thickness of the blade;

[0039] Next, the visual sensor 17 begins to capture high-definition images of the turbine blades and pre-processes these images to remove noise, enhance contrast, etc., thereby improving the image quality; through in-depth analysis and comparison of these features, the visual sensor 17 can accurately detect various defects on the blade surface.

[0040] In a further preferred embodiment of the present invention, Figure 5 As shown, a display panel 18 is provided at a side of the detection frame 15 away from the detection frame 15 , a microprocessor is integrated in the display panel 18 , and the display panel 18 is electrically connected to the detection body and the height adjustment mechanism.

[0041] In this embodiment, the detection data is transmitted in real time to the microprocessor in the display panel 18 through an electrical connection. After receiving the data, the microprocessor will quickly and accurately process and analyze the data, and then display the processing results on the display panel 18 in an intuitive and clear manner. In this way, the operator can immediately understand the detection status of the turbine blades, including whether the size of the blades is qualified, whether the shape is regular, whether the thickness is uniform, and whether there are defects on the surface.

[0042] In a further preferred embodiment of the present invention, Figure 1-3 As shown, a first motor 19 is disposed at the top of the mounting frame 2 , and an output end of the first motor 19 is fixedly connected to an end key of the screw rod 3 .

[0043] In this embodiment, the first motor 19 is used as a power source to drive the screw 3 to rotate. As the screw 3 rotates, the lifting block 4 cooperating therewith will produce precise linear movement along the axial direction of the screw 3. This movement mechanism enables the height of the turbine blade body to be adjusted, which improves the convenience of loading and unloading the turbine blade body, and can also detect turbine blade bodies of different sizes.

[0044] In a further preferred embodiment of the present invention, Figure 3 As shown, a second motor 20 is disposed in the receiving block 5 , and an output end of the second motor 20 is fixedly connected to an end key of the mounting connecting rod 6 .

[0045] In this embodiment, the second motor 20 serves as a power source to drive the mounting connecting rod 6 to rotate. Since the turbine blade body is firmly mounted on the mounting connecting rod 6, when the mounting connecting rod 6 rotates, the turbine blade body will also rotate synchronously. This design allows several single blades of the turbine blade body to be rotated into the detection frame 15 in sequence and orderly, which is convenient for the laser scanning sensor 16 and the visual sensor 17 to perform all-round and multi-angle detection. In this way, not only the efficiency of detection is improved, but also each blade can be accurately and comprehensively evaluated, thereby improving the quality and reliability of the overall detection.

[0046] In a further preferred embodiment of the present invention, Figure 5 As shown, the fastening ring 10 is arranged in an arc shape, and a rubber pad 21 is arranged at the bottom side of the fastening ring 10 .

[0047] In this embodiment, when the fastening ring 10 is subjected to external force, its arc-shaped design enables the pressure to be more evenly distributed on the entire fastening ring 10. At the same time, the rubber pad 21 can absorb and disperse part of the impact force, play a role in buffering and shock absorption, and improve the stability of the connection with the mounting rod 6.

[0048] Working principle: The base 1 of the device provides a stable and reliable supporting platform; a height adjustment mechanism is set on the side of the upper surface of the base 1, which is designed to adjust the relative height of the turbine blade body to meet the installation requirements of turbine blades of different sizes, thereby ensuring the smooth progress of the detection work;

[0049] The height adjustment mechanism includes a mounting frame 2 fixed to the upper edge of the base 1, and a screw 3 rotatably mounted between the mounting frames 2; a first motor 19 is used as a power source to drive the screw 3 to rotate; as the screw 3 rotates, the lifting block 4 that is tightly matched with the screw through the thread will produce precise linear movement along the axial direction of the screw 3; this movement mechanism enables the turbine blade body to be flexibly adjusted in height, which not only improves the convenience of loading and unloading the turbine blade body, but also ensures that turbine blade bodies of different sizes can be effectively detected;

[0050] In order to further enhance the stability of the lifting block 4 during movement and prevent errors caused by shaking or deviation, a guide rod 11 is specially designed; when the screw rod 3 rotates, the lifting block 4 not only moves up and down along the axial direction of the screw rod 3, but also slides smoothly along the guide rod 11 at the same time; such a design greatly improves the stability of the lifting block 4;

[0051] The outer wall of the lifting block 4 is provided with a receiving block 5, and the receiving block 5 is connected to the mounting rod 6 by a rotational fit at a side away from the lifting block 4; the mounting rod 6 is designed mainly to connect and support the turbine blade body to ensure that the turbine blade body can remain stable and will not shake when the height is adjusted;

[0052] In order to fix the turbine blade body and prevent it from shaking or deflecting during operation, a fastening sleeve 7 is specially provided; when the turbine blade body is installed on the mounting connecting rod 6, the two mounting rings 8 are first slid to fit on both sides of the turbine blade body; then, through the action of the electric push rod 9, the two fastening rings 10 are moved inward to tightly clamp the mounting connecting rod 6, thereby achieving a stable fixation of the turbine blade body; in addition, a rubber pad 21 is also provided on the inner side of the fastening ring 10, which can absorb and disperse part of the impact force, play a role in buffering and shock absorption, and further improve the stability of the connection with the mounting connecting rod 6;

[0053] By selecting different positions of the threaded holes 13, the detection frame 15 can flexibly adjust its installation point on the extension bracket 12, thereby realizing the adjustment of the height and tilt angle of the detection frame 15 to adapt to turbine blade bodies of different sizes and shapes; in one of the selected threaded holes 13, the detection frame 15 realizes a firm and reliable threaded fit with the extension bracket 12 through the fastening bolts 14;

[0054] The upper end surface and the lower end surface of the detection frame 15 are open structures that are interconnected. This design allows the detection frame 15 to easily accommodate and support the blades when the turbine blade body needs to be rotated to detect a single blade. The second motor 20 serves as a power source to drive the mounting connecting rod 6 to rotate. Since the turbine blade body is firmly mounted on the mounting connecting rod 6, when the mounting connecting rod 6 rotates, the turbine blade body will also rotate synchronously. This design allows several single blades of the turbine blade body to be rotated into the detection frame 15 in sequence and in an orderly manner, which is convenient for the laser scanning sensor 16 and the visual sensor 17 to perform all-round and multi-angle detection.

[0055] When a single turbine blade is rotated to a predetermined position in the detection frame 15, the laser scanning sensor 16 starts to accurately scan the surface of the turbine blade; through scanning, the sensor can obtain data reflecting key geometric parameters such as blade size, shape and thickness; then, the visual sensor 17 starts to capture high-definition images of the turbine blade and pre-processes these images to remove noise, enhance contrast, etc., thereby improving the image quality; through in-depth analysis and comparison of the images, the visual sensor 17 can accurately detect various defects on the blade surface;

[0056] The detection data is transmitted to the microprocessor in the display panel 18 in real time through electrical connection; after receiving the data, the microprocessor will process and analyze it quickly and accurately, and then display the processing results on the display panel 18 in an intuitive and clear manner; in this way, the operator can immediately understand the detection status of the turbine blades, including whether the size of the blades is qualified, whether the shape is regular, whether the thickness is uniform, and whether there are defects on the surface.

[0057] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0058] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0059] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A detection device for aircraft engine turbine blades, characterized in that: include: Base (1); A height adjustment mechanism provided on the side edge of the upper surface of the base (1); and A detection body disposed beside the height adjustment mechanism; Wherein, the height adjustment mechanism comprises: A mounting frame (2) arranged at an upper edge of the base (1); A screw rod (3) rotated between the mounting frames (2), wherein a lifting block (4) is threadedly matched on the screw rod (3); A receiving block (5) provided on the outer side wall of the lifting block (4); The receiving block (5) is rotatably matched with a mounting connecting rod (6) at a side away from the lifting block (4); A set of fastening sleeves (7) is sleeved on the mounting connecting rod (6); The fastening sleeve (7) comprises: a mounting ring (8) sleeved on the mounting connecting rod (6); Electric push rods (9) are provided on the outer walls of the mounting ring (8) on both sides opposite to each other; The telescopic ends of the two electric push rods (9) extend to the inner cavity of the mounting ring (8) and are respectively connected to a fastening ring (10).

2. The detection device for aircraft engine turbine blades according to claim 1, characterized in that: A group of guide rods (11) are symmetrically arranged on both sides of the mounting frame (2), and the lifting block (4) is in sliding fit with the two guide rods (11).

3. The detection device for aircraft engine turbine blades according to claim 1, characterized in that: The detection subject includes: An extension bracket (12) disposed on the base (1); A plurality of threaded holes (13) are formed through the upper portion of the extension bracket (12); A detection frame (15) is threadedly engaged in one of the threaded holes (13) via a fastening bolt (14), and the upper end surface and the lower end surface of the detection frame (15) are open and communicated with each other.

4. The detection device for aircraft engine turbine blades according to claim 3, characterized in that: The detection subject also includes: A laser scanning sensor (16) disposed at the inner end of the detection frame (15); Visual sensors (17) are arranged on both sides of the detection frame (15).

5. The detection device for aircraft engine turbine blades according to claim 4, characterized in that: A display panel (18) is provided on one side of the detection frame (15) away from the detection frame (15), a microprocessor is integrated in the display panel (18), and the display panel (18) is electrically connected to the detection body and the height adjustment mechanism.

6. The detection device for aircraft engine turbine blades according to claim 2, characterized in that: A first motor (19) is arranged at the top of the mounting frame (2), and an output end of the first motor (19) is fixedly connected to an end key of the screw rod (3).

7. The detection device for aircraft engine turbine blades according to claim 1, characterized in that: A second motor (20) is arranged in the receiving block (5), and an output end of the second motor (20) is fixedly connected to an end key of the mounting connecting rod (6).

8. The detection device for aircraft engine turbine blades according to claim 1, characterized in that: The fastening ring (10) is arranged in an arc shape, and a rubber pad (21) is arranged at the bottom side of the fastening ring (10).

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