Modular angle test tooling adaptable to multiple models of steering gears

Abstract

The utility model discloses a modular angle test frock of multiple model rudder engine's adaptability, include: first installation body is used to install rudder engine, and the upper portion of rudder engine is provided with output shaft, and the radial magnet is provided on output shaft, second installation body is installed in first installation body top, second installation body is provided with magnetic encoder circuit board, and the magnetic encoder circuit board is provided with magnetic encoder main part and data output interface. First installation body adopts 3D printing forming. Second installation body adopts 3D printing forming. First installation body and second installation body are connected through first bolt structure. First installation body and rudder engine are connected through second bolt structure. The utility model discloses utilize 3D printing technology, realized the angle detection frock adaptation of different model rudder engine, improved the efficiency of rudder engine performance index detection. The whole frock is convenient to install, and the structure is simple, can be according to different rudder engine model fast custom-made rudder engine fixture, need no longer design angle detection fixture, and the adaptability is strong.

Description

Technical Field

[0001] This utility model relates to the field of servo motor testing, specifically a modular angle testing fixture that can be adapted to multiple servo motor models. Background Technology

[0002] As a core actuator in a control system, the servo motor's angle control accuracy directly affects the overall system's operational stability and control performance. Angle testing is an indispensable and crucial step in the manufacturing and performance verification of servo motors, requiring specialized testing equipment to accurately detect parameters such as the servo motor's angle deflection range, response speed, and repeatability.

[0003] Existing servo angle testing fixtures generally suffer from several drawbacks: First, they lack adaptability, often being fixed structures designed for specific servo models. The size of the clamping mechanism and mounting hole positions cannot be flexibly adjusted, requiring a complete replacement of the fixture when dealing with servos of different output shaft diameters and mounting bracket specifications, increasing equipment costs and reducing testing efficiency. Second, they lack positioning accuracy and an effective error compensation mechanism, leading to issues such as center shaft misalignment and insecure fixing during servo installation, resulting in significant errors in angle test data and failing to meet the testing requirements of high-precision servos. Third, the operation process is cumbersome, with time-consuming model changes and adjustments. Furthermore, some fixtures rely on manual reading and recording, which is not only inefficient but also prone to human error. Fourth, they have limited functionality, lacking standardized expansion interfaces, making it difficult to simultaneously test multiple parameters such as torque and load, thus limiting their applicability.

[0004] In view of the shortcomings of the existing technology, there is an urgent need for a servo angle testing fixture with multi-model adaptability, high precision, high efficiency and strong scalability, so as to solve the pain points in the current servo testing process. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of the prior art by providing a modular angle testing fixture that can be adapted to multiple models of servos, thereby meeting the requirements for low-cost, modular, high-precision, and high-dynamic-response angle testing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular angle testing fixture adaptable to multiple servo motor models, comprising: A first mounting body is used to mount a servo motor, the servo motor having an output shaft on its upper part and a radial magnet on the output shaft; The second mounting body is installed above the first mounting body. A magnetic encoder circuit board is mounted on the second mounting body, which includes the magnetic encoder body and a data output interface. The second mounting body is 3D printed to fit the magnetic encoder body. The magnetic encoder body is screwed onto the first mounting body. After installation, the AS5600 magnetic encoder is aligned with the servo motor output shaft. A radial magnet is installed on the servo motor output shaft to detect changes in the output shaft angle. The first mounting body uses a custom 3D-printed servo motor fixture of the corresponding model, with screw holes on its surface to accommodate the first mounting body. Therefore, for different servo motor models, only a custom servo motor fixture module is needed, eliminating the need to manufacture a separate angle measurement fixture. The STM32 driver board controls the servo motor output shaft via PWM signals for dynamic response testing, then receives the 12-bit angle data from the magnetic encoder and transmits feedback information via serial port, thus fulfilling the high-precision, high-dynamic-response detection requirements. This fixture is compatible with various model aircraft servos on the market, meeting the needs for low-cost, modular, high-precision, and high-dynamic-response angle detection.

[0007] Preferably, the first mounting body is provided with a plurality of steps, and the second mounting body is mounted on the steps.

[0008] Preferably, the first mounting body is provided with a plurality of elongated through grooves.

[0009] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes 3D printing technology to achieve adaptability of angle detection fixtures for different servo motor models, improving the efficiency of servo motor performance testing. The entire fixture is easy to install, has a simple structure, and can be quickly customized according to different servo motor models, eliminating the need to design separate angle detection fixtures, thus demonstrating strong adaptability. Attached Figure Description

[0010] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the test framework structure of this utility model.

[0011] Reference numerals in the attached drawings: 1. Second mounting body; 2. Magnetic encoder circuit board; 3. Data output interface; 4. Magnetic encoder body; 5. Output shaft; 6. Servo motor; 7. First mounting body; 8. First bolt structure; 9. Second bolt structure. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0013] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating orientation or position, are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] 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.

[0016] like Figure 1 and Figure 2 As shown, the modular angle testing fixture adaptable to multiple servo models in this embodiment includes: The first mounting body 7 is used to mount the servo motor 6. The servo motor 6 has an output shaft 5 on its upper part and a radial magnet on the output shaft 5. The second mounting body 1 is mounted above the first mounting body 7. A magnetic encoder circuit board 2 is mounted on the second mounting body 1. The magnetic encoder circuit board 2 has a magnetic encoder body 4 and a data output interface 3. The magnetic encoder body 4 is an AS5600 magnetic encoder. The radial magnets should be aligned with the AS5600 magnetic encoder 4.

[0017] The first mounting body 7 and the second mounting body 1 are 3D printed. This 3D printing process enables the adaptation of angle detection fixtures for different servo models, improving the efficiency of servo performance testing. The first mounting body 7 and the second mounting body 1 are connected by a first bolt structure 8. The first mounting body 7 and the servo 6 are connected by a second bolt structure 9.

[0018] In some embodiments, the first mounting body 7 is provided with several steps, and the second mounting body 1 is mounted on the steps. The first mounting body 7 can be used in multiple ways to accommodate second mounting bodies 1 of various sizes.

[0019] In some embodiments, the first mounting body 7 is provided with several elongated through slots. Compared to fixed holes, the elongated through slots can accommodate the installation of servos 6 of more sizes. The elongated through slots can be adjusted to match the mounting hole spacing of different servo models by adjusting the fixing position of the second bolt structure within the slot, while fixed holes can only accommodate servos with a single hole spacing. like Figure 3 As shown, both the magnetic encoder body 4 and the servo motor 6 are connected to the STM32 driver board. In use, the STM32 driver board is connected to the servo motor pins, and a PWM signal controls the rotation of the servo motor output shaft 5. The radial magnet on the shaft causes a change in the magnetic field, and the AS5600 magnetic encoder outputs a real-time angle value based on this change. The angle data is output through the magnetic encoder data output interface 3. The angle data can be transmitted to an external terminal via the serial port of the STM32 driver board to achieve high-precision dynamic performance testing. The entire servo motor angle detection fixture utilizes 3D printing technology to adapt to different servo motor models, improving the efficiency of servo motor performance testing. The entire fixture is easy to install, has a simple structure, and can be quickly customized according to different servo motor models, eliminating the need for separate angle detection fixture design, thus demonstrating strong adaptability.

[0020] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A modular angle testing fixture adaptable to multiple servo motor models, characterized in that, include: The first mounting body (7) is used to mount the servo motor (6), the upper part of which is provided with an output shaft (5), and a radial magnet is provided on the output shaft (5); The second mounting body (1) is mounted above the first mounting body (7). The second mounting body (1) is provided with a magnetic encoder circuit board (2). The magnetic encoder circuit board (2) is provided with a magnetic encoder body (4) and a data output interface (3).

2. The modular angle testing fixture adaptable to multiple servo motor models according to claim 1, characterized in that, The first mounting body (7) is formed by 3D printing.

3. The modular angle testing fixture adaptable to multiple servo motor models according to claim 1, characterized in that, The second mounting body (1) is formed by 3D printing.

4. The modular angle testing fixture adaptable to multiple servo motor models according to claim 1, characterized in that, The first mounting body (7) and the second mounting body (1) are connected by a first bolt structure (8).

5. The modular angle testing fixture adaptable to multiple servo motor models according to claim 1, characterized in that, The first mounting body (7) and the servo motor (6) are connected by a second bolt structure (9).

6. The modular angle testing fixture adaptable to multiple servo motor models according to any one of claims 1 to 5, characterized in that, The magnetic encoder body (4) and the servo motor (6) are both connected to the STM32 driver board.

7. The modular angle testing fixture adaptable to multiple servo motor models according to claim 2 or 3, characterized in that, The first mounting body (7) is provided with several steps, and the second mounting body (1) is installed on the steps.

8. The modular angle testing fixture adaptable to multiple servo motor models according to claim 5, characterized in that, The first mounting body (7) is provided with several long strip-shaped through grooves.

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