An angular displacement sensor clamping device

Abstract

This utility model relates to the field of aircraft testing technology and discloses an angular displacement sensor fixture device, including an encoder fixing base plate 1. An encoder 12 is fixedly connected to the inner bottom surface of the encoder fixing base plate 1. The top surface of the encoder 12 is fixedly connected to equidistantly distributed top support limiting rods 14. A bottom fixing clamping assembly is provided on the side of the encoder fixing base plate 1. The top surface of the encoder fixing base plate 1 is fixedly connected to equidistantly distributed top side support rods 5. A top limiting fixing assembly is provided on the top of the top side support rods 5. A rotation support assembly is provided on the top of the encoder fixing base plate 1. This utility model has significant advantages: the bottom and top components cooperate to reduce installation gaps, reduce reading errors, improve test accuracy, and ensure flight safety; each component is reasonably designed and easy to install, can be quickly concentrically aligned, improve production and testing efficiency, and reduce costs; the overall structure is stable, can adapt to harsh environments, and ensure reliable test results.

Description

Technical Field

[0001] This utility model relates to the field of aircraft testing technology, specifically to an angular displacement sensor clamping device. Background Technology

[0002] In the aviation field, angular displacement sensors are crucial for the safe flight and performance monitoring of aircraft. On a certain type of trainer aircraft, it undertakes the key task of measuring and recording the angular displacement of the aircraft's speed brakes. However, existing testing methods for angular displacement sensors have many problems. When conducting technical performance tests in the laboratory, due to the lack of dedicated fixtures, the angular displacement sensor can only be fixed to a sector-shaped aluminum scale plate with angle markings using screws. The rotation angle is read by a pointer that rotates simultaneously with the angular displacement sensor. However, this method has serious flaws. The large installation gap leads to a large error in the pointer reading. This not only makes the testing process extremely cumbersome and consumes a lot of time and manpower, but also frequently causes mismeasurements, seriously affecting the accuracy and reliability of the test results.

[0003] Inaccurate test results may lead to misjudgments of sensor performance. In actual aircraft operation, making decisions based on such erroneous data will pose a great threat to flight safety. At the same time, this inefficient testing method is not conducive to improving production and testing efficiency and increases production costs. To address this, we propose an angular displacement sensor fixture device. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an angular displacement sensor clamping device, which solves the aforementioned problems.

[0005] (II) Technical Solution To achieve the above-mentioned objectives, this utility model provides the following technical solution: An angular displacement sensor clamping device includes an encoder fixing base plate, an encoder fixedly connected to the inner bottom surface of the encoder fixing base plate, top support limiting rods fixedly connected to the top surface of the encoder at equal intervals, bottom fixing clamping components provided on the side of the encoder fixing base plate, top side support rods fixedly connected to the top surface of the encoder fixing base plate at equal intervals, top limiting fixing components provided on the top of the top side support rods, and a rotation support component provided on the top of the encoder fixing base plate.

[0006] Preferably, the encoder fixing base plate has equally spaced threaded holes on its side, equally spaced limiting grooves on its side, a communicating hole on its top surface, and a sliding guide rail on its top surface.

[0007] Preferably, the bottom fixing clamping assembly consists of a fixing clamping assembly and a limiting assembly. The fixing clamping assembly includes an encoder clamping rotating screw and a side sliding clamping plate. The side sliding clamping plate is slidably connected to the inner side of the encoder fixing base plate, and the side sliding clamping plate is slidably connected to the side of the encoder. The encoder clamping rotating screw is rotatably connected to the outer side of the side sliding clamping plate, and the encoder clamping rotating screw is threadedly connected to the inner side of the threaded hole on the side of the encoder fixing base plate.

[0008] Preferably, the limiting component includes side limiting holes and side limiting slide rods. The side of the encoder clamping rotating screw is provided with equidistantly distributed side limiting holes. The side limiting slide rods are slidably connected to the inner side of the side limiting holes. The side limiting slide rods are slidably connected to the inner side of the side limiting groove of the encoder fixing base plate.

[0009] Preferably, the rotating support assembly includes a bottom rotating support platform and rotating support balls. The inner side of the sliding guide rail on the top surface of the encoder fixing base plate is slidably connected to equidistantly distributed rotating support balls. The top surface of the encoder fixing base plate is rotatably connected to the bottom rotating support platform. The top surface of the rotating support balls is slidably connected to the bottom rotating support platform. The bottom of the bottom rotating support platform is concentrically aligned with the coaxial shaft of the encoder. The bottom of the bottom rotating support platform is fixedly connected to the coaxial shaft of the encoder. An angular displacement sensor is slidably connected to the top side of the bottom rotating support platform. Equidistantly distributed fixing threaded holes are provided on the top outer side of the bottom rotating support platform. A connecting threaded hole is provided on the side of the angular displacement sensor. A sensor fixing bolt is threadedly connected to the inner side of the connecting threaded hole. A sensor fixing bolt is threadedly connected to the inner side of the fixing threaded hole on the top outer side of the bottom rotating support platform.

[0010] Preferably, the top limiting and fixing assembly includes a top fixing plate, a plate fixing bolt, and a top rotating pressure platform. The top surface of the top side support rod is fixedly connected to the top fixing plate. The top surface of the top side support rod has an installation threaded groove. The top surface of the top fixing plate has equidistantly distributed through grooves. The inner side of the through groove is slidably connected to the plate fixing bolt. The inner side of the top installation threaded groove of the top side support rod is threadedly connected to the plate fixing bolt. The top rotating pressure platform is rotatably connected inside the top surface of the top fixing plate. The bottom of the top rotating pressure platform is slidably connected to the bottom rotating support platform and the top surface of the angular displacement sensor.

[0011] (III) Beneficial Effects Compared with the prior art, the advantages of this utility model are: An angular displacement sensor clamping device is provided, which has the following advantages: 1. Improved Testing Accuracy: The bottom fixing clamping assembly and the top limiting fixing assembly work together to securely mount the angular displacement sensor on the fixture. The bottom fixing clamping assembly clamps the rotating lead screw and the side sliding clamp plate through the encoder, tightly fixing the encoder. The limiting assembly further prevents the clamping from loosening. The top limiting fixing assembly limits the rotation support assembly from the top, ensuring that the angular displacement sensor will not shift or shake during testing. Compared with the traditional method of fixing it to the fan-shaped aluminum scale plate with screws, this greatly reduces the installation gap, effectively reduces pointer reading errors, thereby improving testing accuracy and avoiding misjudgments of sensor performance due to inaccurate test results, ensuring flight safety in actual aircraft operation.

[0012] 2. Improved testing efficiency: This fixture device is easy to install, and the design of each component is reasonable and easy to operate. When installing the angular displacement sensor, the position of the side sliding clamp can be quickly adjusted by rotating the encoder to clamp the rotating screw. The installation of the top limit fixing component is also relatively simple. Moreover, the rotating support component realizes the quick concentric alignment connection between the angular displacement sensor and the encoder, saving a lot of installation and debugging time. Compared with the traditional installation method, it reduces the complexity and time consumption of manual operation, improves production and testing efficiency, and reduces production costs.

[0013] 3. Enhanced device stability and reliability: The overall structure of the fixture is robust. The encoder mounting base plate serves as the basic support component. Its side threaded holes and limit grooves, top connecting holes and sliding guide rails provide a stable foundation for the installation and movement of other components. The rotating support component uses rotating support balls to ensure smooth rotation of the bottom rotating support platform. It is also fixedly connected to the encoder's concentric shaft, ensuring the stability of the angular displacement sensor during rotation. The entire device is designed with full consideration of mechanical structure and stability factors, enabling reliable operation even in harsh testing environments and ensuring the reliability of test results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled; Figure 3 This is a cross-sectional view of the overall structure of this utility model; Figure 4 This is a cross-sectional view of the bottom fixing and clamping assembly of a portion of the structure in this utility model.

[0015] In the diagram: 1. Encoder fixing base plate; 2. Encoder clamping rotating screw; 3. Side limiting hole; 4. Side limiting slide bar; 5. Top side support rod; 6. Top fixing pressure plate; 7. Pressure plate fixing bolt; 8. Top rotating pressure table; 9. Sensor fixing bolt; 10. Angular displacement sensor; 11. Bottom rotating support table; 12. Encoder; 13. Side sliding clamp; 14. Top support limiting rod; 15. Rotating support ball. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides a technical solution: An angular displacement sensor clamping device includes an encoder fixing base plate 1, an encoder 12 is fixedly connected to the inner bottom surface of the encoder fixing base plate 1, top support limiting rods 14 are fixedly connected to the top surface of the encoder 12 at equal intervals, a bottom fixing clamping assembly is provided on the side of the encoder fixing base plate 1, top side support rods 5 are fixedly connected to the top surface of the encoder fixing base plate 1 at equal intervals, a top limiting fixing assembly is provided on the top of the top side support rods 5, and a rotation support assembly is provided on the top of the encoder fixing base plate 1.

[0018] Furthermore, the encoder fixing base plate 1 has equally spaced threaded holes on its side, equally spaced limiting grooves on its side, a connecting hole on its top surface, and a sliding guide rail on its top surface.

[0019] Furthermore, the bottom fixing clamping assembly consists of a fixing clamping assembly and a limiting assembly. The fixing clamping assembly includes an encoder clamping rotating screw 2 and a side sliding clamping plate 13. The side sliding clamping plate 13 is slidably connected to the inner side of the encoder fixing base plate 1, and the side sliding clamping plate 13 is slidably connected to the side of the encoder 12. The encoder clamping rotating screw 2 is rotatably connected to the outer side of the side sliding clamping plate 13. The encoder clamping rotating screw 2 is threadedly connected to the inner side of the threaded hole on the side of the encoder fixing base plate 1. Through the action of the fixing clamping assembly, the encoder 12 is clamped and fixed.

[0020] Furthermore, the limiting component includes side limiting holes 3 and side limiting slide rods 4. The side of the encoder clamping rotating screw 2 is provided with equally spaced side limiting holes 3, and the side limiting slide rods 4 are slidably connected to the inner side of the side limiting holes 3. The side limiting slide rods 4 are slidably connected to the inner side of the side limiting groove of the encoder fixing base plate 1. Through the function of the limiting component, the limiting of the encoder clamping rotating screw 2 is realized, preventing loosening that could lead to loosening of the clamping fixation.

[0021] Furthermore, the rotating support assembly includes a bottom rotating support platform 11 and rotating support balls 15. The rotating support balls 15 are slidably connected to the inner side of the sliding guide rail on the top surface of the encoder fixing base plate 1. The bottom rotating support platform 11 is rotatably connected to the top surface of the encoder fixing base plate 1, and the bottom rotating support platform 11 is slidably connected to the top surface of the rotating support balls 15. The bottom of the bottom rotating support platform 11 is concentrically aligned with the concentric shaft of the encoder 12. The bottom of the bottom rotating support platform 11 is fixedly connected to the concentric shaft of the encoder 12. An angular displacement sensor 10 is slidably connected to the top side of the bottom rotating support platform 11. Equally spaced fixing threaded holes are opened on the top outer side of the bottom rotating support platform 11. A connecting threaded hole is opened on the side of the angular displacement sensor 10. A sensor fixing bolt 9 is threadedly connected to the inner side of the connecting threaded hole. A sensor fixing bolt 9 is threadedly connected to the inner side of the fixing threaded hole on the top outer side of the bottom rotating support platform 11. Through the action of the rotating support assembly, the concentric alignment connection between the angular displacement sensor 10 and the encoder 12 is achieved, facilitating subsequent testing.

[0022] Furthermore, the top limiting and fixing assembly includes a top fixing plate 6, a plate fixing bolt 7, and a top rotating pressure platform 8. The top side support rod 5 is fixedly connected to the top fixing plate 6. The top side support rod 5 has an installation threaded groove. The top surface of the top fixing plate 6 has equidistantly distributed through grooves. The plate fixing bolt 7 is slidably connected to the inner side of the through groove. The inner side of the installation threaded groove on the top of the top side support rod 5 is threadedly connected to the plate fixing bolt 7. The top rotating pressure platform 8 is rotatably connected to the top surface of the top fixing plate 6. The bottom of the top rotating pressure platform 8 is slidably connected to the bottom rotating support platform 11 and the top surface of the angular displacement sensor 10. Through the action of the top limiting and fixing assembly, the top limiting and fixing of the rotating support assembly is achieved.

[0023] Structural Description: Encoder fixing base plate 1: As the basic support component of the entire device, its side equidistant threaded holes are used to cooperate with the encoder clamping rotating screw 2 to fix the encoder 12; the side equidistant limiting groove cooperates with the side limiting slide bar 4 to limit the rotation of the encoder clamping rotating screw 2 and enhance the fixing stability; the connecting hole and sliding guide rail on the top surface provide the installation and movement foundation for the rotating support assembly and ensure the smooth rotation of the bottom rotating support platform 11. Encoder 12: Installed on the inner bottom surface of encoder mounting base plate 1, with equidistant top support limit rods 14 on its top surface, which can assist in support and limit to a certain extent, ensuring that the components connected to it maintain a stable relative position, and providing a stable reference for accurate measurement of angular displacement; Top side support rod 5: It is fixed at equal intervals on the top surface of the encoder fixing base plate 1 to provide support for the top limit fixing assembly. The mounting thread groove on its top surface is used to install the pressure plate fixing bolt 7 to ensure that the top fixing pressure plate 6 is firmly installed, thereby providing a foundation for the stable operation of the entire top limit fixing assembly. Top fixed pressure plate 6: It has a plate-like structure with equidistant through slots on the top surface, which facilitates the sliding of the pressure plate fixing bolts 7 in the through slots to achieve fine adjustment of the pressure plate position. The bottom surface is rotatably connected to the top rotating pressure table 8, providing an installation base for the top rotating pressure table 8. It is also fixed to the top side support rod 5 by the pressure plate fixing bolts 7, thereby limiting the rotation support assembly. Pressure plate fixing bolt 7: Passes through the top groove of the top fixing pressure plate 6 and is threaded to the top groove of the top side support rod 5. By tightening or loosening the bolt, the installation position and pressure of the top fixing pressure plate 6 can be adjusted to ensure the stable operation of the top limit fixing component. Top rotating pressure platform 8: The bottom is slidably connected to the bottom rotating support platform 11 and the top surface of the angular displacement sensor 10, and is rotatably connected inside the top surface of the top fixed pressure plate 6. When the bottom rotating support platform 11 rotates, the top rotating pressure platform 8 can rotate accordingly, while limiting the vertical displacement of the bottom rotating support platform 11 and the angular displacement sensor 10 to prevent them from shaking and ensure the stability of the test process. Bottom rotating support platform 11: The bottom center is concentrically aligned with and fixedly connected to the coaxial shaft of encoder 12 to ensure that angular displacement sensor 10 and encoder 12 remain concentric and ensure measurement accuracy. The top side is used to install angular displacement sensor 10. Equidistant fixed threaded holes are opened on the top outer side, and are connected to the side threaded holes of angular displacement sensor 10 through sensor fixing bolts 9 to achieve stable installation of angular displacement sensor. The whole is supported by rotating support ball bearings 15 and can rotate flexibly. Rotating support balls 15: They are evenly distributed on the inner side of the sliding guide rail on the top surface of the encoder fixed base plate 1. Their top surface is slidably connected to the bottom surface of the bottom rotating support platform 11. The rotating support balls 15 convert the sliding friction between the bottom rotating support platform 11 and the encoder fixed base plate 1 into rolling friction, which greatly reduces the friction force and allows the bottom rotating support platform 11 to rotate more flexibly and smoothly, reducing resistance and wear during the rotation process. Encoder clamping rotating lead screw 2: It is usually a threaded rod structure with standard threads machined on the surface. The material is mostly high-strength metal, such as stainless steel, to ensure sufficient strength and durability. One end of the lead screw is rotatably connected to the outer side of the sliding clamp 13 through a bearing or bushing. This connection method can ensure that the clamp can move smoothly when the lead screw rotates, and prevent excessive relative displacement between the two. The other end of the lead screw is used for manual or tool-assisted rotation. Its length and thread specifications are designed according to the actual clamping requirements to ensure that it can provide appropriate clamping force and adjustment range. Side sliding clamp 13: Generally a block structure, the surface in contact with the encoder 12 and the encoder fixing base plate 1 is smoothed to reduce sliding friction. The part of the clamp plate that connects to the encoder clamping rotating screw 2 is provided with a matching connecting hole. A rotatable connecting piece is installed in the hole so that the clamp plate can slide along the side of the encoder and the encoder fixing base plate when the screw rotates. The shape and size of the clamp plate are designed according to the shape of the encoder to ensure that pressure can be applied evenly during the clamping process and avoid local stress concentration on the encoder. Side limiting holes 3: are equidistantly opened on the side of the encoder clamping rotating lead screw 2. They are usually circular holes with a diameter that matches the outer diameter of the side limiting slide bar 4. This ensures that the slide bar can slide smoothly in the hole with a small gap to prevent shaking. The depth of the hole is determined according to actual needs. It is necessary to ensure that the side limiting slide bar 4 has sufficient travel and that the slide bar will not come out when the lead screw rotates. Side limiting slide bar 4: It is mostly a cylindrical rod structure, and the material is generally a metal with high hardness and wear resistance, such as carbon steel. One end of the slide bar is inserted into the side limiting hole 3 of the encoder clamping rotating lead screw 2, and the other end slides in the limiting groove on the side of the encoder fixing base plate 1. The length of the slide bar is slightly greater than the effective stroke of the encoder clamping rotating lead screw 2 to ensure that it can always play a limiting role during the rotation of the lead screw. The surface of the slide bar is finely polished to reduce friction with the limiting hole and the limiting groove, and ensure the smooth rotation of the lead screw. Working principle: When this utility model is used, the encoder fixing base plate 1 serves as the basic component. Its side has equally spaced threaded holes. The encoder 12 is installed and fixed via the bottom fixing clamping assembly. The encoder clamping rotating screw 2 is rotated, and the screw is threadedly connected to the threaded holes on the side of the encoder fixing base plate 1. This drives the side sliding clamping plate 13 to slide inside the encoder fixing base plate 1 and on the side of the encoder 12 until the encoder 12 is tightly fixed. Simultaneously, the side limiting hole 3 on the side of the encoder clamping rotating screw 2 slides in cooperation with the side limiting slide rod 4, and the side limiting slide rod 4 slides within the side limiting groove of the encoder fixing base plate 1, effectively preventing the encoder clamping rotating screw 2 from shifting during rotation and ensuring a stable clamping. The angular displacement sensor 10 is placed on the top side of the bottom rotating support platform 11, and the connecting threaded hole on the side of the angular displacement sensor 10 aligns with the fixing threaded hole on the outer side of the top of the bottom rotating support platform 11. The sensor is fixedly connected by screwing in the sensor fixing bolt 9. The bottom of the bottom rotating support platform 11 is concentrically aligned with the coaxial shaft of the encoder 12 and fixedly connected. It is slidably connected to the sliding guide rail on the top surface of the encoder fixing base plate 1 through the rotating support ball 15, which can rotate flexibly and make it easy to adjust the angle of the angular displacement sensor 10. The top limiting fixing component at the top of the top side support rod 5 plays a role. The top fixing plate 6 is fixed to the top side support rod 5 through the pressure plate fixing bolt 7. The top rotating pressure platform 8 is rotatably connected inside the top surface of the top fixing plate 6, and its bottom is slidably connected to the bottom rotating support platform 11 and the top surface of the angular displacement sensor 10, which limits the rotation support component and prevents it from shaking or displacing during rotation. When angular displacement is measured, the angular displacement sensor 10 rotates with the bottom rotating support platform 11, and the encoder 12 records the rotation data synchronously, thereby realizing the accurate measurement of angular displacement.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An angular displacement sensor clamp arrangement comprising an encoder fixing base plate (1) characterised in that: An encoder (12) is fixedly connected to the inner bottom surface of the encoder fixing base plate (1). The top surface of the encoder (12) is fixedly connected to equidistantly distributed top support limiting rods (14). The side of the encoder fixing base plate (1) is provided with a bottom fixing clamping assembly. The top surface of the encoder fixing base plate (1) is fixedly connected to equidistantly distributed top side support rods (5). The top of the top side support rods (5) is provided with a top limiting fixing assembly. The top of the encoder fixing base plate (1) is provided with a rotation support assembly.

2. The angular displacement sensor clamping device according to claim 1, characterized in that: The encoder fixing base plate (1) has threaded holes that are evenly distributed on its side, and limit grooves that are evenly distributed on its side. The encoder fixing base plate (1) has a connecting hole on its top surface and a sliding guide rail on its top surface.

3. An angular displacement sensor clamp apparatus according to claim 2, wherein: The bottom fixing clamping assembly consists of a fixing clamping assembly and a limiting assembly. The fixing clamping assembly includes an encoder clamping rotating screw (2) and a side sliding clamp (13). The inner side of the encoder fixing base plate (1) is slidably connected to the side sliding clamp (13). The side of the encoder (12) is slidably connected to the side sliding clamp (13). The outer side of the side sliding clamp (13) is rotatably connected to the encoder clamping rotating screw (2). The inner side of the threaded hole on the side of the encoder fixing base plate (1) is threadedly connected to the encoder clamping rotating screw (2).

4. An angular displacement sensor clamp apparatus according to claim 3, wherein: The limiting component includes a side limiting hole (3) and a side limiting slide rod (4). The side of the encoder clamping rotating screw (2) is provided with equidistantly distributed side limiting holes (3). The side limiting slide rod (4) is slidably connected to the inner side of the side limiting hole (3). The side limiting slide rod (4) is slidably connected to the inner side of the side limiting groove of the encoder fixing base plate (1).

5. An angular displacement sensor clamp apparatus according to claim 2, wherein: The rotating support assembly includes a bottom rotating support platform (11) and rotating support balls (15). The encoder fixing base plate (1) has equidistantly distributed rotating support balls (15) slidably connected to the inner side of the sliding guide rail on its top surface. The encoder fixing base plate (1) has a bottom rotating support platform (11) rotatably connected to its top surface. The rotating support balls (15) have a bottom rotating support platform (11) slidably connected to its top surface. The bottom of the bottom rotating support platform (11) is concentrically aligned with the coaxial axis of the encoder (12). The bottom of (11) is fixedly connected to the coaxial shaft of the encoder (12). An angular displacement sensor (10) is slidably connected to the top side of the bottom rotating support platform (11). The top outer side of the bottom rotating support platform (11) is provided with equidistantly distributed fixed threaded holes. The side of the angular displacement sensor (10) is provided with a connecting threaded hole. The inner side of the connecting threaded hole is threaded with a sensor fixing bolt (9). The inner side of the fixed threaded hole on the top outer side of the bottom rotating support platform (11) is threaded with a sensor fixing bolt (9).

6. An angular displacement sensor clamp apparatus according to claim 2, wherein: The top limiting and fixing assembly includes a top fixing plate (6), a plate fixing bolt (7), and a top rotating pressure platform (8). The top surface of the top side support rod (5) is fixedly connected to the top fixing plate (6). The top surface of the top side support rod (5) is provided with an installation thread groove. The top surface of the top fixing plate (6) is provided with equally spaced through grooves. The inner side of the through groove is slidably connected to the plate fixing bolt (7). The inner side of the top installation thread groove of the top side support rod (5) is threadedly connected to the plate fixing bolt (7). The top surface of the top fixing plate (6) is rotatably connected to the top rotating pressure platform (8). The bottom of the top rotating pressure platform (8) is slidably connected to the bottom rotating support platform (11) and the top surface of the angular displacement sensor (10).

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