Small-torque dynamic monitoring mechanism
The high-precision torque sensor and precise gripping mechanism driven by a servo motor solve the accuracy and stability problems of traditional small torque monitoring methods, realize efficient, stable monitoring and adaptive detection of small torque components, and reduce equipment loss and operation complexity.
Patent Information
- Application Number
- CN202423040330.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Traditional small torque monitoring methods have deficiencies in accuracy, stability and adaptability, and are difficult to meet the needs of modern industrial production.
A servo motor is used as the detection power source, combined with a high-precision torque sensor, a rotating air finger connecting plate, a rotating finger cylinder, a contoured finger and a spring-pressing component to achieve accurate monitoring of small torques and stable grasping. The spring coupling buffers the impact force, and the rotation angle limit block restricts excessive rotation.
It improves the accuracy and stability of torque monitoring, enhances the adaptability to raw materials of different shapes and sizes, reduces equipment damage and maintenance costs, and improves the degree of automation and production efficiency.
Smart Images
Figure CN223412859U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of torque monitoring, in particular to a small torque dynamic monitoring mechanism. Background Art
[0002] In modern industrial production, many small parts involve the transmission of torque during their work, and the precise control and monitoring of these small torques are crucial to the performance and quality of the products. Traditional torque monitoring methods have some shortcomings in the dynamic monitoring of small torques. On the one hand, the measurement accuracy of small torques is difficult to guarantee and is easily interfered by external factors, resulting in inaccurate measurement results. On the other hand, when grabbing the raw materials to be tested and during dynamic monitoring, it may not be possible to stably fix the raw materials, affecting the reliability of torque measurement. In addition, existing monitoring equipment may lack effective control of the rotation angle and adaptability to raw materials of different shapes, and cannot meet diverse production needs. Therefore, a new type of small torque dynamic monitoring mechanism is needed to solve these problems. Summary of the Invention
[0003] The purpose of this utility model is to provide a small torque dynamic monitoring mechanism with the advantages of high torque monitoring accuracy, stable raw material grabbing, strong adaptability, good equipment protection, high degree of automation and simple operation, which can effectively solve the problems existing in traditional small torque monitoring methods and equipment to solve the above technical problems.
[0004] In order to realize the above technical solution, the technical solution of the present invention is as follows: The small torque dynamic monitoring mechanism is mainly composed of a monitoring bracket, a detection power source, a detection grabbing component and a sensing component. The monitoring bracket serves as the supporting structure of the entire mechanism and provides a stable installation basis for other components. The detection power source is fixed on the monitoring bracket to provide power for the entire monitoring process. The detection grabbing component is coaxially arranged with the output shaft of the detection power source and is used to grab the raw materials to be tested. The sensing component is fixed on the monitoring bracket, one end of which is transmission-connected to the detection power source, and the other end is fixedly connected to the detection grabbing component. When the detection power source drives the detection grabbing component to rotate, the sensing component can sense the change in torque value, thereby realizing dynamic monitoring of small torque.
[0005] Furthermore, the detection power source utilizes a servo motor, mounted on a monitoring bracket via a motor mounting plate. This installation method ensures the servo motor's stability. A spring coupling is detachably connected to the servo motor's output end. This spring coupling cushions the impact between the motor's output shaft and subsequent components, protecting the equipment and reducing the impact of vibration on torque measurement. A first sensor is located at one end of the spring coupling. This sensor monitors parameters such as the motor's output shaft's speed and angle of rotation, providing auxiliary data for subsequent torque calculation and analysis. It also facilitates monitoring and fault diagnosis of the entire power transmission process.
[0006] Furthermore, the detection and grasping component includes a rotating air finger connecting plate fixedly inserted at one end of the sensing component, and a rotating finger cylinder is detachably mounted on the bottom of the rotating air finger connecting plate. The rotating air finger connecting plate serves as an intermediate structure connecting the sensing component and the rotating finger cylinder, ensuring a stable connection and force transmission between the two. The detachable installation method facilitates maintenance, replacement or adjustment of the rotating finger cylinder. Adjacent rotating air finger connecting plates and rotating finger cylinders are positioned by finger cylinder positioning columns. The finger cylinder positioning columns improve the installation accuracy of the two, ensuring the position accuracy of the rotating finger cylinder during operation, thereby ensuring the accuracy and stability of the grasping action.
[0007] Furthermore, a contouring finger is provided at the output end of the rotating finger cylinder. The contouring finger can be designed according to the shape of the raw material to be tested to better fit and grasp the raw material, thereby improving the stability of grasping. A spring-pressing assembly is provided between adjacent contouring fingers. The spring-pressing assembly includes a base spring-pressing fixing seat symmetrically mounted on both sides of the rotating finger cylinder. The adjacent base spring-pressing fixing seats are fixedly connected by a base spring-pressing guide block. A base spring-pressing block is movably inserted into the base spring-pressing guide block. An elastic element (such as a spring) is provided between the base spring-pressing block and the base spring-pressing fixing seat. A base spring-pressing fixture is detachably mounted on the base spring-pressing block. One end of the base spring-pressing fixture passes through the base spring-pressing guide block. The design of the spring-pressing assembly enables the gripping force and range to be automatically adjusted by the expansion and contraction of the elastic element when grasping raw materials of different sizes. At the same time, the C-shaped contouring groove on the base spring-pressing fixture can better adapt to the shape of the raw material, further improving the stability and reliability of grasping. The contouring finger is provided with an outward-protruding positioning shoulder, which can be used to more accurately position the raw material. A power-off switch is provided on one side of the rotating air finger connecting plate. The power-off switch can be used to detect the grasping status of the contouring finger and realize automatic control.
[0008] Furthermore, the sensing component includes a torque sensor holder, on which a torque sensor is detachably mounted, with one end of the torque sensor connected to the detection power source and the other end connected to the detection gripping component. The torque sensor holder provides a stable mounting platform for the torque sensor, and the detachable mounting method facilitates the maintenance and replacement of the sensor. The torque sensor is the core component for sensing changes in torque value, and it can accurately measure the magnitude of the torque during the rotation of the detection gripping component driven by the detection power source. A T-shaped rotation angle limit block is provided on one side of the torque sensor, and the rotation angle limit block can limit the rotation angle of the detection gripping component to prevent damage to the raw materials or equipment to be tested due to excessive rotation. It also helps to more accurately monitor torque changes within a specific angle range, thereby improving the accuracy and reliability of monitoring.
[0009] Compared with the prior art, the present invention has the following beneficial effects:
[0010] 1) By employing a high-precision torque sensor as the core sensing component, it can accurately detect changes in low torque during dynamic rotation. Furthermore, the primary sensor's monitoring of the power source output shaft parameters and the rotation angle limiter's restriction of the rotation angle provide additional reference data and conditions for torque monitoring, further improving torque measurement accuracy. This high-precision monitoring capability accurately detects the torque performance of low-torque components during production, ensuring product quality.
[0011] 2) The detection gripping components, including the rotating air finger connecting plate, rotating finger cylinder, contouring finger, and spring-loaded assembly, work together to achieve stable gripping of the material under test. The precise connection between the rotating air finger connecting plate and rotating finger cylinder, the contouring finger's design tailored to the material's shape, and the spring-loaded assembly's adaptive elasticity ensure secure gripping regardless of material size and shape. Power-off detection of the gripping status ensures accurate and automated gripping. Stable material gripping is a crucial prerequisite for obtaining accurate torque data throughout the torque monitoring process.
[0012] 3) The design of the contouring fingers and spring assembly enables this monitoring mechanism to adapt to the shapes and sizes of materials under test. The elastic element in the spring assembly automatically adjusts the gripping force according to the size of the material. The C-shaped contouring groove and contouring fingers of the base spring fixture can better conform to the shape of the material. This adaptability increases the versatility of the monitoring mechanism, reduces the cost of equipment replacement when testing different types of materials, and is suitable for production testing of a variety of low-torque parts.
[0013] 4) A spring coupling at the output of the detection power source cushions the impact between the motor output shaft and subsequent components, reducing vibration damage to the equipment. A rotation angle limiter prevents excessive rotation of the detection gripper, preventing damage to the equipment and the raw materials being tested. These features extend the life of the equipment, reduce maintenance costs, and ensure the stability and reliability of the monitoring process.
[0014] 5) The entire monitoring process is highly automated, with each step, from material handling to torque monitoring and release, coordinated and controlled by the control system. Operators only need to perform simple operations such as equipment startup, parameter setting, and monitoring results review, significantly reducing labor intensity. Furthermore, the structural design of the monitoring mechanism's various components is rational, making installation, commissioning, and maintenance relatively simple, facilitating on-site use and improving production efficiency.
[0015] In summary, this small torque dynamic monitoring mechanism has the advantages of high torque monitoring accuracy, stable raw material grabbing, strong adaptability, good equipment protection, high degree of automation and easy operation. It can effectively solve the problems existing in traditional small torque monitoring methods and equipment, and meet the needs of dynamic monitoring of small torque components in modern industrial production. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.
[0017] Figure 1 It is a three-dimensional diagram of the small torque dynamic monitoring mechanism;
[0018] Figure 2 This is a front view of the small torque dynamic monitoring mechanism. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0021] Please see the attached Figures 1 to 2A low-torque dynamic monitoring mechanism is shown, comprising a monitoring bracket 1. The mechanism also includes a detection power source 2 fixed to the monitoring bracket 1 for providing power; a detection and grabbing component 3 coaxially arranged with the output shaft of the detection power source 2 for grabbing the material to be tested; and a sensing component 4 fixed to the monitoring bracket 1, with one end in transmission connection with the detection power source 2 and the other end fixedly connected to the detection and grabbing component 3. The sensing component 4 senses changes in torque when the detection power source 2 drives the detection and grabbing component 3 to rotate. The entire monitoring process is highly automated. From the use of a rotating finger cylinder to drive the contouring fingers to grab the material, to the detection power source driving the material to rotate for torque monitoring, to the release of the material after monitoring is complete, all steps are coordinated and controlled by a control system. Operators only need to perform simple operations such as starting the device, setting parameters, and viewing results, significantly reducing labor intensity. The structural design of the various components of the monitoring mechanism is rational. The detection power source is mounted to the monitoring bracket via a motor mounting plate, and the installation and connection of the sensing and detection and grabbing components are also relatively clear. This simple structural design makes the equipment relatively easy to install, debug and maintain, convenient for use at the production site, and helps to improve production efficiency.
[0022] Based on the above embodiment, the detection power source 2 is a servo motor 21; the servo motor 21 is mounted on the monitoring bracket 1 via a motor mounting plate, and the output end of the servo motor 21 is detachably connected to a spring coupling 22; a first sensor 23 is provided at one end corresponding to the spring coupling 22. The detection power source uses a servo motor, and the spring coupling at its output end is an important protective design. During power transmission, the spring coupling can buffer the impact force between the motor output shaft and subsequent components, reducing vibration damage to the equipment. This effectively protects key components such as the detection power source, sensing components, and detection and grasping components, extending the service life of the equipment.
[0023] Based on the above embodiment, the detection and grasping component 3 includes a rotating air finger connecting plate 31 fixedly inserted at one end of the sensing component 4; a rotating finger cylinder 32 is detachably installed on the bottom of the rotating air finger connecting plate 31; adjacent rotating air finger connecting plates 31 and rotating finger cylinders 32 are positioned by finger cylinder positioning columns; a contour finger 33 is provided at the output end of the rotating finger cylinder 32; and a spring-pressing component 34 is provided between adjacent contour fingers 33.
[0024] Based on the above embodiment, the spring-pressing assembly 34 includes a base spring-pressing fixing seat symmetrically mounted on both sides of the rotating finger cylinder 32; adjacent base spring-pressing fixing seats are fixedly connected by a base spring-pressing guide block; a base spring-pressing block is movably inserted on the base spring-pressing guide block; an elastic element is provided between the base spring-pressing block and the base spring-pressing fixing seat; a base spring-pressing fixture is detachably mounted on the base spring-pressing block; one end of the base spring-pressing fixture passes through the base spring-pressing guide block; the design of the spring-pressing assembly is extremely advantageous. It consists of a base spring-pressing fixing seat symmetrically mounted on both sides of the rotating finger cylinder, a base spring-pressing guide block, a movable base spring-pressing block, an elastic element (spring), and a base spring-pressing fixture. When grabbing raw materials of different sizes, the elastic element can automatically adjust the position of the base spring-pressing block according to the size of the raw materials, thereby changing the grabbing force. This adaptive capability ensures stable gripping of materials of varying sizes and prevents them from loosening or shifting during the entire torque monitoring process. The contouring finger 33 is equipped with an outwardly protruding positioning shoulder, and a power-off switch is located on one side of the rotating air finger connecting plate 31. The rotating air finger connecting plate, rotating finger cylinder, contouring finger, and spring-loaded assembly within the detection and gripping components work together to achieve stable gripping of the material under test. The precise connection between the rotating air finger connecting plate and rotating finger cylinder, the contouring finger's design tailored to the material's shape, and the elastic, adaptive nature of the spring-loaded assembly ensure secure gripping regardless of material size and shape. The power-off switch monitors the gripping status, ensuring accurate and automated gripping. Stable material gripping is a crucial prerequisite for obtaining accurate torque data throughout the torque monitoring process.
[0025] Based on the above embodiment, the elastic element is a spring; and a C-shaped profiling groove is provided on the base pressing fixture.
[0026] Based on the above embodiment, the sensing component 4 includes a torque sensor holder 41; a torque sensor 42 is detachably mounted on the torque sensor holder 41; one end of the torque sensor 42 is connected to the detection power source 2, and the other end is connected to the detection gripping component 3; and a T-shaped rotation angle limiter 43 is provided on one side of the torque sensor 42. By using a high-precision torque sensor as the core of the sensing component, it can accurately sense changes in small torque during dynamic rotation. Simultaneously, the first sensor's monitoring of the detection power source's output shaft parameters and the rotation angle restriction by the rotation angle limiter provide more reference data and conditions for torque monitoring, further improving the accuracy of torque measurement. This high-precision monitoring capability accurately detects the torque performance of small-torque components during the production process, ensuring product quality. In addition to improving torque monitoring accuracy, the rotation angle limiter also prevents excessive rotation of the detection gripping component. During the monitoring process, damage to the equipment and damage to the raw materials being tested due to abnormal rotation can be avoided, further ensuring the stability and reliability of the equipment and reducing maintenance costs.
[0027] Install the monitoring mechanism on a suitable workbench, ensuring the monitoring bracket is positioned stably. Check the connection between the detection power source (servo motor) and the monitoring bracket is secure and that the motor mounting plate is not loose. Confirm that the spring coupling is securely connected to the servo motor output. Verify that the first sensor is functioning properly and accurately capturing the relevant parameters of the motor output shaft. Install and adjust the detection and gripping components. Securely insert the rotating air finger connecting plate into one end of the sensing component, then install the rotating finger cylinder at the bottom of the rotating air finger connecting plate. Ensure precise alignment and positioning of the two using the finger cylinder positioning posts. Select the appropriate contour finger based on the shape of the material to be tested and install it at the output end of the rotating finger cylinder. Verify the contour finger's flexibility and gripping function. Install and adjust the spring assembly, ensuring proper connection between the base spring mounting bracket, base spring guide block, base spring block, elastic element, and base spring fixture, that the elastic element (spring) is elastic, and that the C-shaped contour groove of the base spring fixture can adapt to the shape of the material. Verify that the power-off switch can properly detect the contour finger's gripping status. Install and debug the sensing component. Install the torque sensor on the torque sensor mounting bracket, ensuring a secure connection and no looseness. Check the calibration of the torque sensor to ensure it can accurately measure torque. Confirm that the rotation angle limiter is correctly installed to effectively limit the rotation angle of the detection and gripping component. Once completed, activate the rotating finger cylinder to open the contour fingers. Place the material to be tested in the appropriate position between the contour fingers, ensuring good contact between the material and the positioning shoulders on the contour fingers for accurate gripping. Close the rotating finger cylinder, driving the contour fingers to close. The spring assembly acts to clamp the material together with the base spring fixture and contour fingers. The elastic element in the spring assembly automatically adjusts the clamping force based on the material size to ensure a stable grip. At the same time, the power switch detects the contour fingers' gripping status and provides feedback to the control system. Activate the detection power source (servo motor). The motor output shaft transmits power to the sensing component (torque sensor) via a spring coupling. The torque sensor then transmits power to the detection and gripping component, causing the material to begin rotating. During the rotation process, the sensing component (torque sensor) senses the change in torque value in real time and transmits the data to the control system (external related equipment can be connected). At the same time, the first sensor monitors the speed, angle and other parameters of the motor output shaft and transmits them to the control system. The control system calculates and analyzes the change in torque value based on this data, and accurately monitors the dynamic changes of small torque within the angle range defined by the rotation angle limit block. When the torque monitoring is completed, stop the rotation of the detection power source (servo motor), then turn on the rotating finger cylinder to open the contour finger and release the raw material to be tested. Check whether each component is normal. If necessary, clean or adjust the contour finger, spring pressure component, etc. of the detection grasping component and prepare for the next monitoring. At the same time, check the detection power source and sensing components to ensure that there are no abnormalities in the spring coupling, torque sensor and other components, and wait for the next detection operation.
[0028] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art should be able to utilize the technical contents disclosed above and make equivalent embodiments that are equivalent changes by making slight changes or modifications without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A small torque dynamic monitoring mechanism, comprising a monitoring bracket (1), characterized in that: The small torque dynamic monitoring mechanism also includes: A detection power source (2) is fixed on the monitoring bracket (1) and is used to provide power; A detection grabbing component (3) is coaxially arranged with the output shaft of the detection power source (2) and is used to grab the raw material to be tested; and A sensing component (4) is fixedly mounted on the monitoring bracket (1), with one end being transmission-connected to the detection power source (2) and the other end being fixedly connected to the detection grabbing component (3); Wherein: when the detection power source (2) drives the detection grabbing component (3) to rotate, the sensing component (4) senses the change in the torque value.
2. The low-torque dynamic monitoring mechanism according to claim 1, characterized in that: The detection power source (2) is a servo motor (21); the servo motor (21) is mounted on the monitoring bracket (1) via a motor mounting plate; the output end of the servo motor (21) is detachably connected to a spring coupling (22); and a first sensor (23) is provided corresponding to one end of the spring coupling (22).
3. The low-torque dynamic monitoring mechanism according to claim 2, characterized in that: The detection and grasping component (3) comprises a rotating air finger connecting plate (31) fixedly inserted at one end of the sensing component (4); a rotating finger cylinder (32) is detachably mounted on the bottom of the rotating air finger connecting plate (31); adjacent rotating air finger connecting plates (31) and rotating finger cylinders (32) are positioned by finger cylinder positioning columns; an imitation finger (33) is provided at the output end of the rotating finger cylinder (32); and a spring-pressing assembly (34) is provided between adjacent imitation fingers (33).
4. The low-torque dynamic monitoring mechanism according to claim 3, characterized in that: The spring-pressing assembly (34) comprises a base spring-pressing fixing seat symmetrically mounted on both sides of the rotating finger cylinder (32); adjacent base spring-pressing fixing seats are fixedly connected by a base spring-pressing guide block; a base spring-pressing block is movably inserted on the base spring-pressing guide block; an elastic element is provided between the base spring-pressing block and the base spring-pressing fixing seat; a base spring-pressing fixture is detachably mounted on the base spring-pressing block; one end of the base spring-pressing fixture passes through the base spring-pressing guide block; The profiling finger (33) is provided with a positioning shoulder protruding outward; and a related electric switch is provided on one side of the rotating air finger connecting plate (31).
5. The low-torque dynamic monitoring mechanism according to claim 4, characterized in that: The elastic element is a spring; and a C-shaped profiling groove is provided on the base pressing fixture.
6. The low-torque dynamic monitoring mechanism according to claim 1, characterized in that: The sensing component (4) comprises a torque sensor fixing seat (41); a torque sensor (42) is detachably mounted on the torque sensor fixing seat (41); one end of the torque sensor (42) is connected to a detection power source (2), and the other end is connected to a detection grasping component (3); a T-shaped rotation angle limit block (43) is provided on one side of the torque sensor (42).