Universal airflow clamp detection workbench for moving blades of aero-engine gas turbine

Abstract

The utility model discloses an aero-engine gas turbine moving blade general airflow clamp detection workbench, which comprises a box body, a fixed chassis, a sealing chassis, a sealing sheet, a toggle clamp assembly and a clamp assembly, and is characterized in that the fixed chassis is arranged at the center of the top of the box body, and the sealing chassis is arranged at the top of the fixed chassis; according to the utility model, the clamp assembly is fixed through the toggle clamp assembly, and the sealing piece arranged between the fixed chassis and the sealing chassis is matched to ensure the sealing state of the workbench, so that the air leakage phenomenon is avoided, and the detection is more accurate; meanwhile, the air valve is connected with the first air pipe and the second air pipe to form an air source structure of the air cylinder, the air source structure pushes the clamp assembly to conduct clamping and fixing in the detection process, rollover of products is avoided, safety is improved, the device can be matched with moving blades of aero-engines and gas turbines at the same time, and universality is high; the workbench is simple in overall structure, easy to assemble, easy in clamping operation, convenient, fast and efficient, and the practicability of the workbench is improved.

Description

Technical Field

[0001] The utility model relates to the field of detection of moving blade vanes of aero-engines and gas turbines, and particularly to a general air flow fixture detection workbench for moving blade vanes of aero-engine gas turbines. Background Technique

[0002] An aero-engine is the core component of an aircraft, providing the thrust required for the aircraft to fly. The aero-engine industry chain is long and has high added value. Its manufacturing process requires a large number of high-end manufacturing equipment and precision machining technologies, so it has high economic benefits. At the same time, as a high-end equipment, the research and development and manufacturing of gas turbines require advanced technology and process support. As a clean and efficient energy conversion device, it can be applied to fields such as energy conversion and power production. The moving blade vane is an important functional component of an aero-engine and a gas turbine. The general air flow fixture detection of the moving blade vane mainly involves the accurate measurement and evaluation of parameters such as the geometric shape and aerodynamic performance of the moving blade vane in an aero-engine or a gas turbine; this kind of detection usually requires the use of special fixtures to fix the blade to ensure the accuracy and repeatability of the measurement; the existing detection workbenches for moving blade vanes can basically meet the daily use requirements, but there are still some deficiencies. First, the overall structure of the existing detection workbench is complex, the assembly process is cumbersome, and the operation steps for installing the blade are numerous, increasing the work intensity of the operator and affecting the practicability of the workbench; second, although the principle of detecting the moving blade vane in the workbench is the same, it is restricted by the size changes of the aero-engine and the gas turbine, affecting the detection range of the workbench; therefore, it is very necessary to design a general air flow fixture detection workbench for moving blade vanes of aero-engine gas turbines. Content of the Utility Model

[0003] The purpose of the utility model is to provide a general air flow fixture detection workbench for moving blade vanes of aero-engine gas turbines, so as to solve the problems that the overall structure of the existing detection workbench is complex, the assembly process is cumbersome, and the operation steps for installing the blade are numerous, increasing the work intensity of the operator and affecting the practicability of the workbench; and although the principle of detecting the moving blade vane in the workbench is the same, it is restricted by the size changes of the aero-engine and the gas turbine, affecting the detection range of the workbench.

[0004] To solve the above technical problems, the present utility model provides the following technical solution: a general air flow fixture detection workbench for the moving blades of an aero-engine gas turbine, comprising a box body, a fixed chassis, a sealing chassis, a sealing sheet, a toggle clamp assembly, a fixture assembly, an air inlet, a cylinder, a first air pipe, a second air pipe, an air valve and an air inlet pipe. A fixed chassis is provided at the center of the top of the box body. A sealing chassis is provided on the top of the fixed chassis. A sealing sheet is provided between the sealing chassis and the fixed chassis. Toggle clamp assemblies are symmetrically provided on both sides of the top of the sealing chassis. A center plate in the fixture assembly is placed at the center of the top of the sealing chassis. The fixture assembly is composed of a center plate, an air outlet, a fixed block, a sliding block, a clamping block, a connecting rod and a support column. An air outlet is formed on the center plate. Fixed blocks are symmetrically provided on both sides of the center plate and are fixed on the top of the sealing chassis. A sliding block is slidably connected to the fixed block, and a clamping block is provided on one side of the sliding block. One end of the connecting rod is slidably connected to the top of the sliding block, and the other end of the connecting rod is hinged to the output end of the cylinder.

[0005] As a further technical solution of the present utility model, an air inlet is provided at the bottom of one side of the box body, and the air inlet is communicated with the air outlet.

[0006] As a further technical solution of the present utility model, the connecting rod is rotatably connected to the top of the support column, and the support columns are symmetrically fixed on the top of the sealing chassis.

[0007] As a further technical solution of the present utility model, a first air pipe and a second air pipe are respectively provided on the cylinder. The first air pipe and the second air pipe are both connected to the air valve in cooperation, and the air valve is fixed on one side of the top of the sealing chassis. An air inlet pipe is provided at the input end of the air valve.

[0008] As a further technical solution of the present utility model, the toggle clamp assembly is composed of a first support block, a first toggle bracket, a first pressing rod, a second support block, a second toggle bracket and a second pressing rod. The first support block and the second support block are respectively symmetrically installed on both sides of the top of the sealing chassis.

[0009] As a further technical solution of the present utility model, the first support block is connected to the first toggle bracket in cooperation. The first pressing rod is connected to the first toggle bracket in cooperation. The bottom end of the first pressing rod presses tightly on the top of the center plate.

[0010] As a further technical solution of the present utility model, the second support block is connected to the second toggle bracket in cooperation. The second pressing rod is connected to the second toggle bracket in cooperation. The bottom end of the second pressing rod presses tightly on the top of the center plate.

[0011] The general air flow fixture detection workbench for the moving blade of an aeroengine gas turbine provided by the utility model has the following advantages: The center plate in the fixture assembly is tightly pressed and fixed at the top center of the sealed chassis through the toggle clamp assembly. After the pressing and fixing, the air inlet and the air outlet on one side of the box body are interconnected. The sealing piece arranged between the fixed chassis and the sealed chassis ensures that the gas is in a closed state all the time during the process of entering the inner cavity of the fixture and then the inner part of the blade, avoiding air leakage and making the detection more accurate. At the same time, the air valve connects the first air pipe and the second air pipe to form the air source structure of the cylinder. During clamping, air is supplied through the first air pipe to push the cylinder to extend, and then the sliding blocks and the clamping blocks on both sides are driven to approach each other through the connecting rod to achieve clamping and fixing, avoiding the product from tipping over, improving safety, and being able to adapt to the moving blades of aeroengines and gas turbines at the same time, expanding the detection range of the workbench and having strong versatility. After the detection is completed, switching to supply air through the second air pipe can make the cylinder contract, and then drive the sliding blocks and the clamping blocks on both sides to move away from each other to release the fixation of the blade. The overall structure of the workbench is simple, the assembly is simple, and at the same time, the clamping operation is easy, convenient and efficient, improving the practicability of the workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is Figure 1 the partial enlarged view of area A in

[0015] Figure 3 is Figure 1 the partial enlarged view of area B in

[0016] Figure 4 is Figure 1 the partial enlarged view of area C in

[0017] Figure 5 is Figure 1 the partial enlarged view of area D in

[0018] In the figure: 1. Box body; 2. Fixed chassis; 3. Sealed chassis; 4. Sealing piece; 5. Toggle clamp assembly; 6. Fixture assembly; 7. Air inlet; 8. Cylinder; 9. First air pipe; 10. Second air pipe; 11. Air valve; 12. Air inlet pipe; 51. First support block; 52. First toggle bracket; 53. First pressing rod; 54. Second support block; 55. Second toggle bracket; 56. Second pressing rod; 61. Central plate; 62. Air outlet; 63. Fixed block; 64. Sliding block; 65. Clamping block; 66. Connecting rod; 67. Support column. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] Please refer to the attached Figure 1 - attached Figure 5, An embodiment provided by the utility model: a general air flow fixture detection workbench for the moving blade of an aeroengine gas turbine, including a box body 1, a fixed chassis 2, a sealing chassis 3, a sealing sheet 4, a toggle clamp assembly 5, a fixture assembly 6, an air inlet 7, a cylinder 8, a first air pipe 9, a second air pipe 10, a valve 11 and an air inlet pipe 12. A fixed chassis 2 is arranged at the center of the top of the box body 1. A sealing chassis 3 is arranged on the top of the fixed chassis 2. A sealing sheet 4 is arranged between the sealing chassis 3 and the fixed chassis 2. Toggle clamp assemblies 5 are symmetrically arranged on both sides of the top of the sealing chassis 3. A center plate 61 in the fixture assembly 6 is placed at the center of the top of the sealing chassis 3. The fixture assembly 6 is composed of a center plate 61, an air outlet 62, a fixed block 63, a sliding block 64, a clamping block 65, a connecting rod 66 and a support column 67. An air outlet 62 is opened on the center plate 61. Fixed blocks 63 are symmetrically arranged on both sides of the center plate 61 and are fixed on the top of the sealing chassis 3. A sliding block 64 is slidably connected to the fixed block 63, and a clamping block 65 is arranged on one side of the sliding block 64. One end of a connecting rod 66 is slidably connected to the top of the sliding block 64, and the other end of the connecting rod 66 is hinged to the output end of the cylinder 8; An air inlet 7 is opened at the bottom of one side of the box body 1, and the air inlet 7 is communicated with the air outlet 62; The connecting rod 66 is rotatably connected to the top of the support column 67, and the support columns 67 are symmetrically fixed on the top of the sealing chassis 3; The cylinder 8 is respectively provided with a first air pipe 9 and a second air pipe 10. The first air pipe 9 and the second air pipe 10 are both connected to the valve 11 in cooperation, and the valve 11 is fixed on one side of the top of the sealing chassis 3. The input end of the valve 11 is provided with an air inlet pipe 12; The toggle clamp assembly 5 is composed of a first support block 51, a first toggle bracket 52, a first pressing rod 53, a second support block 54, a second toggle bracket 55 and a second pressing rod 56. The first support block 51 and the second support block 54 are respectively symmetrically installed on both sides of the top of the sealing chassis 3; The first support block 51 is connected to the first toggle bracket 52 in cooperation. The first pressing rod 53 is connected to the first toggle bracket 52 in cooperation. The bottom end of the first pressing rod 53 presses tightly on the top of the center plate 61; The second support block 54 is connected to the second toggle bracket 55 in cooperation. The second pressing rod 56 is connected to the second toggle bracket 55 in cooperation. The bottom end of the second pressing rod 56 presses tightly on the top of the center plate 61. The first pressing rod 53 and the second pressing rod 56 are respectively supported by the chutes opened on the first toggle bracket 52 and the second toggle bracket 55. After the toggle brackets are pressed down and fixed, the first pressing rod 53 and the second pressing rod 56 respectively press on both sides of the top of the center plate 61 to fix the center plate 61;

[0022] Specifically, during use, the center plate 61 in the fixture assembly 6 is tightly pressed and fixed at the top center of the sealed chassis 3 through the toggle clamp assembly 5. After pressing and fixing, the air inlet 7 on one side of the box body 1 communicates with the air outlet 62. The sealing piece 4 arranged between the fixed chassis 2 and the sealed chassis 3 ensures that the gas is always in a closed state during the process of entering the fixture cavity and then into the blade, avoiding air leakage and making the detection more accurate. At the same time, the air valve 11 connects the first air pipe 9 and the second air pipe 10 to form the air source structure of the cylinder 8. During clamping, air is supplied through the first air pipe 9 to push the cylinder 8 to extend, and then the sliding blocks 64 and the clamping blocks 65 on both sides are driven to approach each other through the connecting rod 66 to achieve clamping and fixing, avoiding the product from tipping over, improving safety, and being able to adapt to the moving blade of the aero-engine and gas turbine at the same time, expanding the detection range of the workbench and having strong versatility. After the detection is completed, switching to supply air through the second air pipe 10 can make the cylinder 8 contract, and then drive the sliding blocks 64 and the clamping blocks 65 on both sides to move away from each other to release the fixation of the blade. The overall structure of the workbench is simple, the assembly is simple, and at the same time, the clamping operation is easy, convenient and efficient, improving the practicability of the workbench.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] The device embodiments described above are only illustrative. The units described 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 can be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A universal airflow fixture inspection workbench for rotor blades of an aircraft engine gas turbine, comprising a housing (1), a fixed chassis (2), a sealing chassis (3), a sealing sheet (4), a toggle clamp assembly (5), a fixture assembly (6), an air inlet (7), a cylinder (8), a first air pipe (9), a second air pipe (10), an air valve (11) and an air inlet pipe (12), characterized in that: A fixed chassis (2) is arranged at the top center of the box body (1), a sealing chassis (3) is arranged at the top of the fixed chassis (2), a sealing sheet (4) is arranged between the sealing chassis (3) and the fixed chassis (2), toggle clamp assemblies (5) are symmetrically arranged on both sides of the top of the sealing chassis (3), a center plate (61) of a clamp assembly (6) is placed at the top center of the sealing chassis (3), and the clamp assembly (6) consists of the center plate (61), an air outlet (62), a fixed block (63), a sliding block (64), a clamping block ( 65), a connecting rod (66) and a supporting column (67), an air outlet (62) is opened on the center plate (61), fixed blocks (63) are symmetrically arranged on both sides of the center plate (61), and the fixed blocks (63) are fixed on the top of the sealing chassis (3), a sliding block (64) is slidably connected to the fixed block (63), and a clamping block (65) is arranged on one side of the sliding block (64), the top of the sliding block (64) is slidably connected to one end of the connecting rod (66), and the other end of the connecting rod (66) is hinged on the output end of the cylinder (8).

2. The universal airflow fixture inspection workbench for the rotor blades of the aero-engine gas turbine according to claim 1 is characterized by: An air inlet (7) is provided at the bottom of one side of the box body (1), and the air inlet (7) and the air outlet (62) are communicated with each other.

3. The universal airflow fixture inspection workbench for the rotor blades of the aero-engine gas turbine according to claim 1 is characterized by: The connecting rod (66) is rotatably connected to the top of the supporting column (67), and the supporting column (67) is symmetrically fixed to the top of the sealing bottom plate (3).

4. The universal airflow fixture inspection workbench for the rotor blades of the aero-engine gas turbine according to claim 1, characterized in that: The cylinder (8) is provided with a first air pipe (9) and a second air pipe (10), respectively. The first air pipe (9) and the second air pipe (10) are both connected to an air valve (11), and the air valve (11) is fixed on one side of the top of the sealed chassis (3). An air intake pipe (12) is provided at the input end of the air valve (11).

5. The universal airflow fixture inspection workbench for the rotor blades of the aero-engine gas turbine according to claim 1, characterized in that: The toggle clamp assembly (5) is composed of a first support block (51), a first toggle frame (52), a first push rod (53), a second support block (54), a second toggle frame (55) and a second push rod (56). The first support block (51) and the second support block (54) are symmetrically mounted on both sides of the top of the sealing chassis (3).

6. The universal airflow fixture inspection workbench for the rotor blades of the gas turbine of an aircraft engine according to claim 5, characterized in that: The first support block (51) is cooperatively connected with a first toggle frame (52), the first toggle frame (52) is cooperatively connected with a first pressing rod (53), and the bottom end of the first pressing rod (53) is tightly pressed against the top of the center plate (61).

7. The universal airflow fixture inspection workbench for the rotor blades of the gas turbine of an aircraft engine according to claim 5, characterized in that: The second support block (54) is cooperatively connected with a second toggle frame (55), and the second toggle frame (55) is cooperatively connected with a second pressing rod (56), and the bottom end of the second pressing rod (56) is tightly pressed against the top of the center plate (61).

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