Positioning measurement tool for engine guide vane

Abstract

The utility model discloses an engine guide vane positioning and measuring tool, which belongs to the technical field of engine guide vane measuring tools, and comprises an extension block, a plug block is mounted at the top end of the extension block in an embedded manner, an extension rod is fixedly mounted at the top end of the plug block, and the extension rod is fixedly connected with the extension block. A positioning plate is tightly attached to one side of the extension block, a spring pin is arranged in the extension rod, a blade threaded end is installed at the top end of the extension rod in an embedded mode, and an engine guide blade body is fixedly installed at the top end of the blade threaded end. According to the utility model, the positioning plate is used for ensuring that the position of a blade is not changed after clamping each time, so that a coordinate system is fixed, manual alignment is not needed again during batch measurement of a measuring machine, the measurement accuracy is ensured, the time for placing products by detection personnel is greatly shortened, and the fixture is high in applicability, can be used on various measuring machines, and is simple in structural design and convenient to use. Usage is convenient, and no gas source is needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to engine guide vane measurement frock technical field, in particular to a kind of positioning measurement frock of engine guide vane. BACKGROUND

[0002] Engine guide vane is a kind of blade structure playing the role of guiding and regulating airflow inside engine. It is usually installed in the components such as compressor and turbine of engine, and through guiding the direction and angle of airflow, effective control and management of airflow are realized, and engine guide vane plays a key role in the normal operation of engine, and accurate positioning is crucial to ensure the performance and reliability of engine, and positioning measurement frock of engine guide vane is a tool specially used for accurately determining the position and posture of engine guide vane in engine, in order to realize accurate positioning measurement of engine guide vane, a special frock needs to be designed to meet the quality control requirements in production process.

[0003] In a certain type of engine, 18 pieces of guide vane are needed to be assembled per unit, and after processing, the top end is threaded rod, and the conventional threaded sleeve is used to fix the blade, and the three coordinates are used to measure the blade, and the measurer needs to manually mark and align after replacing and clamping the blade again, which wastes a lot of time, and the single measurement time is about 20min / piece, and using conventional flat mouthed vise to clamp the lower end of the blade not only considers clamping the blade but also affects the measurement of the flow passage profile and the measurement of the blade profile, and a program cannot be used to complete the measurement, and the newly introduced blade white light measuring machine does not need manual alignment, and only needs to fix the blade when establishing the coordinate system for the first time, and then the blade can be directly measured by placing it in the same position, and the conventional threaded sleeve cannot realize positioning, so that the measurer can only place the approximate position and realize accurate measurement through program iteration.

[0004] Therefore, it is urgent to provide a positioning measurement frock of engine guide vane to solve the above problems. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and provide a positioning measurement frock of engine guide vane.

[0006] To solve the above technical problems, one technical scheme of the utility model is to provide a positioning measurement frock of engine guide vane, which comprises an extension block, a plug block is embedded and installed at the top end of the extension block, an extension rod is fixedly installed at the top end of the plug block, a positioning plate is closely attached to one side of the extension block, a spring pin is arranged in the extension rod, a blade threaded end is embedded and installed at the top end of the extension rod, and an engine guide vane body is fixedly installed at the top end of the blade threaded end.

[0007] Through the technical scheme, firstly, the blade threaded end is installed on the extension rod with the spring pin inside, when the engine guide vane body is rotated, the spring pin inside gives upward thrust, guarantees that the blade will not be loose when the engine guide vane body is rotated to the specified position, the positioning plate guarantees that the position is not changed after the blade is clamped each time, so that the coordinate system is fixed, so that the measuring machine does not need to be manually aligned again when batch measuring, the accuracy of measurement is guaranteed, and the stop pin can be used for replacing the spring pin inside and fixing the positioning plate when the spring inside is insufficient.

[0008] The utility model further sets up: the inside of extension block is equipped with first pin groove.

[0009] Through the technical scheme, the first pin groove inside the extension block makes the installation position of the stop pin accurate and fixed, which helps to improve the positioning accuracy of the whole tooling.

[0010] The utility model further sets up: the inside of plug -in pin block is equipped with second pin groove.

[0011] Through the technical scheme, the second pin groove inside the plug -in pin block ensures the relative position between the plug -in pin block and the extension block is stable, so that the plug -in pin block will not displace unnecessarily when subjected to external force.

[0012] The utility model further sets up: the inside of positioning plate is equipped with third pin groove.

[0013] Through the technical scheme, the third pin groove inside the positioning plate guarantees the close fitting state between the positioning plate and the extension block, effectively prevents the positioning plate from shaking or displacing in the horizontal direction, and the positioning plate can be rotated through the third pin groove.

[0014] The utility model further sets up: first pin groove, second pin groove and third pin groove are on the same horizontal line.

[0015] Through the technical scheme, this layout makes a stable limiting system be formed in the three pin grooves, which comprehensively restricts the extension block, the plug -in pin block and the positioning plate, and guarantees the position of each component is accurate and faultless in the horizontal and vertical directions.

[0016] The utility model further sets up: the inside of first pin groove, second pin groove and third pin groove is embedded with stop pin.

[0017] Through the technical scheme, the stop pin limits and fixes the plug -in pin block and the extension block through the first pin groove and the second pin groove, and the stop pin installs the positioning plate through the third pin groove, and the angle of the positioning plate can be rotated and fixed by the tightness of the stop pin.

[0018] The utility model further sets up: the both sides of blade threaded end are provided with plane.

[0019] The above technical solution facilitates the installation and positioning of the engine guide vane body, ensuring the accuracy of the guide vane's position. In addition, the flat design can increase the structural strength of the blade thread end and improve its stability during use.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model uses a positioning plate to ensure that the position of the blade remains unchanged after each clamping, thereby fixing the coordinate system. When the measuring machine performs batch measurements, there is no need to manually align it again, ensuring the accuracy of the measurement. It also greatly reduces the time for the inspector to place the product. The fixture is highly adaptable and can be used on various measuring machines. The structure is simple and easy to use. It does not require an air source and can also be used on measuring machines with a turntable. It can well meet the clamping and positioning needs of this type of guide vane measurement and improve work efficiency.

[0022] 2. By using this fixture, the present invention avoids the repetitive manual alignment work and simplifies clamping, enabling damage-free clamping and inspection of blades, further accelerating the delivery speed of the product, meeting the needs of batch production parts, and the stop pin can be used to replace the internal spring pin and fix the positioning plate when the internal spring pin has insufficient elasticity. Attached Figure Description

[0023] Figure 1 This is a front sectional view of the present invention;

[0024] Figure 2 This is a structural diagram of the spring pin of this utility model;

[0025] Figure 3 This is a side sectional view of the present invention.

[0026] Figure 4 This is a structural diagram of the engine guide vane body of this utility model;

[0027] Figure 5 for Figure 4 Top view of the structure.

[0028] In the diagram: 1. Extension block; 2. Pin block; 3. Extension rod; 4. Positioning plate; 5. Stop pin; 6. Spring pin; 7. Threaded end of blade; 8. Engine guide vane body. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0030] Please seeFigures 1-5 A positioning and measuring fixture for an engine guide vane includes an extension block 1, a pin block 2 fitted onto the top of the extension block 1, an extension rod 3 fixedly mounted onto the top of the pin block 2, and a positioning plate 4 tightly fitted to one side of the extension block 1. The extension block 1 has a first pin groove, the pin block 2 has a second pin groove, and the positioning plate 4 has a third pin groove. The first, second, and third pin grooves are on the same horizontal line. A stop pin 5 is fitted into each of the first, second, and third pin grooves. The first pin groove in the extension block 1 ensures precise and fixed installation of the stop pin, improving the overall positioning accuracy of the fixture. The second pin groove in the pin block 2 ensures stable relative position between the pin block 2 and the extension block 1, preventing unnecessary displacement of the pin block 2 under external force. The third pin groove inside the positioning plate 4 ensures a tight fit between the positioning plate 4 and the extension block 1, effectively preventing the positioning plate 4 from shaking or shifting in the horizontal direction. At the same time, the positioning plate 4 can rotate through the third pin groove. The three pin grooves can form a stable limiting system, which comprehensively constrains the extension block, the pin block, and the positioning plate, ensuring that the position of each component is accurate in the horizontal and vertical directions. The stop pin 5 restricts and fixes the pin block 2 and the extension block 1 through the first and second pin grooves. The stop pin 5 is installed on the positioning plate 4 through the third pin groove. By tightening or loosening the stop pin 5, the angle of the positioning plate 4 can be rotated and fixed. The positioning plate 4 ensures that the position remains unchanged after each blade clamping, thereby fixing the coordinate system. This eliminates the need for manual recalibration during batch measurements by the measuring machine, ensuring the accuracy of the measurement.

[0031] like Figures 1-3 As shown, the extension rod 3 has a spring pin 6 inside, and a blade thread end 7 is fitted at the top of the extension rod 3. Both sides of the blade thread end 7 have flat surfaces. The engine guide vane body 8 is fixedly installed at the top of the blade thread end 7. First, the blade thread end 7 is installed on the extension rod 3 with the spring pin 6 inside. When the engine guide vane body 8 is rotated, the internal spring pin 6 will provide an upward thrust to ensure that the blade will not loosen after the engine guide vane body 8 is rotated to the designated position. The existence of the flat surface of the blade thread end 7 provides convenience for the installation and positioning of the engine guide vane body 8, so that the positioning plate 4 can ensure the accuracy of the position of the engine guide vane body 8 through the flat surface of the blade thread end 7. In addition, the flat surface design can also increase the structural strength of the blade thread end 7 and improve its stability during use.

[0032] When using this invention to measure a certain type of guide vane, firstly, the threaded end 7 of the vane is mounted on the extension rod 3 with an internal spring pin 6. When the engine guide vane body 8 is rotated, the internal spring pin 6 provides an upward thrust, ensuring that the vane does not loosen after the engine guide vane body 8 reaches the designated position. The stop pin 5 can be used to replace the internal spring pin 6 and fix the positioning plate 4 when the internal spring force is insufficient. By tightening or loosening the stop pin 5, the angle of the positioning plate 4 can be adjusted and fixed. When the engine guide vane body 8 is rotated to the A-direction position, the positioning plate 4 is rotated from the extension block 1 to... Figure 5 Position the blade at the threaded end 7 plane as shown. After that, rotate it to the extension block 1. Finally, use flat-nose pliers to clamp the extension block 1, and you can start measuring. Repeat the same steps for each subsequent measurement.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A positioning and measuring fixture for engine guide vanes, comprising an extension block (1), characterized in that: The top of the extension block (1) is fitted with a pin block (2), the top of the pin block (2) is fixedly fitted with an extension rod (3), one side of the extension block (1) is tightly fitted with a positioning plate (4), the inside of the extension rod (3) is provided with a spring pin (6), the top of the extension rod (3) is fitted with a blade thread end (7), and the top of the blade thread end (7) is fixedly fitted with an engine guide vane body (8).

2. The positioning and measuring fixture for engine guide vanes according to claim 1, characterized in that: The extension block (1) has a first pin groove inside.

3. The positioning and measuring fixture for engine guide vanes according to claim 2, characterized in that: The pin block (2) has a second pin groove inside.

4. The positioning and measuring fixture for engine guide vanes according to claim 3, characterized in that: The positioning plate (4) has a third pin groove inside.

5. The positioning and measuring fixture for engine guide vanes according to claim 4, characterized in that: The first pin groove, the second pin groove, and the third pin groove are on the same horizontal line.

6. The positioning and measuring fixture for an engine guide vane according to claim 4, characterized in that: The first, second, and third pin slots are fitted with stop pins (5).

7. The positioning and measuring fixture for engine guide vanes according to claim 1, characterized in that: Both sides of the threaded end (7) of the blade are provided with flat surfaces.

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