Performance test system for micro-torque precision speed reducer

Abstract

The invention provides a micro-torque precision reducer performance test system. Comprising a test calculation end, a measurement and control instrument, a driving motor, a load motor, an electric control cabinet, a control cabinet, an automatic locking mechanism, a precise moving mechanism, a torque sensor, a circular grating, a vibration sensor, a displacement measurement system, a control display system, a temperature sensor, a noise sensor and a precise guide rail mechanism. The torque sensors are used for measuring the input torque and the output torque of a measured piece in real time, are respectively arranged near an input shaft and an output shaft, and output real-time signals to the measurement and control instrument; the driving motor provides driving torque for a tested piece and is provided with a torque sensor and a driver. The load motor provides a resistance moment for a tested piece, and is equipped with a motor driver, so that the tested piece can be tested under an externally applied load; the electric control cabinet is used for controlling a tested piece and a power supply; the control cabinet is used for installing a driving motor, and an emergency stop control circuit is arranged in the driving motor.

Description

Technical Field

[0001] The invention belongs to the field of performance testing, and in particular relates to a micro-torque precision reducer performance testing system. Background Art

[0002] Micro-torque precision reducers play a vital role in modern mechanical transmission systems and are widely used in many fields such as robots, automation equipment, aerospace, and medical equipment. With the continuous advancement of science and technology, the performance requirements for reducers are also increasing, especially in terms of accuracy, response speed, load capacity, and volume. However, under the current technical background, there are still many deficiencies in the design and application of performance test systems for existing micro-torque precision reducers. First, the existing test systems mostly use traditional measurement methods and lack high-precision measurement methods for micro-torque, which limits the reliability and accuracy of the test results. Especially in the small torque range, conventional measuring equipment may have problems such as insufficient sensitivity and noise interference, making it difficult to accurately capture the performance of the reducer under subtle load changes. Secondly, the current reducer performance test system often cannot fully evaluate the performance of the reducer in the actual working environment, and there is a large difference between the test conditions and the actual application scenarios.

[0003] For example, many test systems fail to fully consider the impact of environmental factors such as temperature, humidity, and vibration on reducer performance, which may lead to performance degradation or failure in actual applications. In addition, existing test systems also have deficiencies in data processing and analysis. They usually use relatively simple statistical analysis methods and cannot deeply explore the potential information behind the data, which affects the comprehensive understanding of reducer performance. With the rise of intelligent manufacturing, data-driven testing and analysis methods have gradually become a trend, but many current micro-torque precision reducer test systems have not yet been intelligentized and cannot be combined with modern data analysis technology, limiting their application potential in performance optimization and fault prediction.

[0004] The existing test systems also have problems in compatibility and scalability. Many devices can only test specific types of reducers and lack versatility, resulting in reduced investment and utilization efficiency of test equipment. In addition, the automation level of the test system is generally low, with much manual intervention, which is prone to human errors and increases uncertainty in the test process. Finally, the current micro-torque precision reducer performance test system also faces challenges in cost control. Many high-precision measurement equipment and complex test environments make the overall test cost high, limiting its popularization and application in small and medium-sized enterprises. Therefore, in view of these shortcomings of the existing technology, it is urgent to develop a more advanced performance test system, using new materials, new technologies and intelligent means to improve the test accuracy, reliability and economy of micro-torque precision reducers to meet the growing market demand and technological development trends. Summary of the invention

[0005] The present invention proposes a micro-torque precision reducer performance test system to solve the multiple technical problems currently faced in micro-torque measurement and performance evaluation, thereby improving the reliability and accuracy of the reducer in practical applications. This system integrates a variety of advanced sensors and control technologies to solve a series of key technical problems in micro-torque testing, such as incomplete data acquisition, inaccurate testing process, and environmental factors.

[0006] The technical solution of the present invention is implemented as follows: a micro-torque precision reducer performance test system, including a test calculation end, a measuring and controlling instrument, a drive motor, a load motor, an electric control cabinet, a control cabinet, an automatic locking mechanism, a precision moving mechanism, a torque sensor, a circular grating, a vibration sensor, a displacement measurement system, a control display system, a temperature sensor, a noise sensor and a precision guide rail mechanism; the torque sensor is used to measure the input and output torque of the test piece in real time, and the torque sensor is respectively installed near the input and output shafts, and outputs real-time signals to the measuring and controlling instrument; the drive motor provides driving torque for the test piece and is equipped with a torque sensor and a driver; the load motor provides resistance torque for the test piece and is equipped with a motor driver, so that the test piece can be tested under an external load; the electric control cabinet is used to control the test piece and the power supply; the control cabinet is used to install the drive motor, and the drive motor has a built-in Emergency stop control circuit; the automatic locking mechanism, precision moving mechanism and precision guide mechanism are used to realize automatic positioning of the tested piece; the circular grating is used to collect the input and output angles of the tested piece, and output real-time signals to the measuring and controlling instrument; the vibration sensor is used to collect the vibration data of the input and output ends of the tested piece; the displacement measurement system is used to measure the displacement of the precision moving mechanism of the tested piece, and output real-time signals to the measuring and controlling instrument; the control display system is used to display and control the operation status of the tested piece; the temperature sensor is used to collect the temperature of the tested piece, and output real-time signals to the measuring and controlling instrument; the noise sensor is used to collect the noise conditions of the tested piece during operation, and output real-time signals to the measuring and controlling instrument; the measuring and controlling instrument collects signals from the torque sensor, circular grating, displacement measurement system, vibration sensor, temperature sensor and noise sensor, performs test control and data processing, and stores the data in the test calculation end.

[0007] Traditional reducer performance testing often only focuses on torque measurement, while ignoring the monitoring of other important parameters, such as vibration, temperature, noise, etc., which have a significant impact on the operating status and performance of the reducer. This test system is equipped with torque sensors, vibration sensors, temperature sensors and noise sensors, which can monitor the comprehensive performance of the test piece in real time and provide multi-dimensional data support. This comprehensive data collection method not only enhances the understanding of reducer performance, but also provides a scientific basis for fault diagnosis and performance optimization.

[0008] The design of the precision moving mechanism and automatic locking mechanism in the system solves the problem of positioning accuracy of the reducer when applying external loads. Previous testing methods often rely on manual operation, which is prone to human errors. The automated positioning mechanism can greatly improve test efficiency and repeatability while ensuring accuracy. This improvement is particularly important in micro-torque testing, because small errors may lead to significant deviations in test results.

[0009] The integration of the control cabinet and the electric control cabinet in the system makes the management of the drive motor and the load motor more efficient. Through precise power control and emergency stop functions, parameters can be adjusted in real time during the test to ensure the safety and stability of the test. This intelligent control not only improves the safety of the test, but also facilitates subsequent data analysis and troubleshooting.

[0010] As a preferred embodiment, the control display system is a touch screen, which is composed of a touch screen, a human-machine interface circuit, a touch screen interface and a communication module; the touch screen is used to display the information of the measuring and controlling instrument, including real-time measurement data, parameter settings and test control operation interface, etc.; the human-machine interface circuit realizes the collection and processing of touch screen input signals and sends them to the measuring and controlling instrument; the touch screen interface and communication module realize the communication connection between the measuring and controlling instrument and the human-machine interface circuit.

[0011] As a preferred embodiment, the measuring and controlling instrument is composed of two PCM-1801 high-performance modules, a control and communication module, a power supply and temperature control module, and a measuring and controlling instrument interface and communication module; the PCM-1801 high-performance module collects signals from torque sensors, circular gratings, displacement measurement systems, vibration sensors, temperature sensors, and noise sensors through input lines, performs test control and data processing after processing, and sends the data to the measuring and controlling instrument; the control and communication module is used to receive signals from the touch screen and set and control the PCM-1801 module; the power supply and temperature control module is used to power and control the temperature of electronic components in the measuring and controlling instrument to prevent overheating and damage; the measuring and controlling instrument interface and communication module uses a network cable to transmit the test data in the measuring and controlling instrument to the test computing end through the TCP / IP protocol.

[0012] As a preferred embodiment, the electric control cabinet is composed of a driver, a relay, a contactor, an electric control cabinet mounting plate, and a wire rack; the driver includes a motor, a reducer driver and an encoder card; the relay includes an air switch, a contactor, and a thermal relay; the contactor includes a main contact, an auxiliary contact, and a button; the electric control cabinet mounting plate is used to install the driver, relays and contactors, and to lead out the power supply; the wire rack is used to straighten the cable routes of various electronic components.

[0013] As a preferred embodiment, the displacement measurement system is tested for no-load and load respectively. During the test, the speed and load can be freely set within the rated range, and an error curve report is output independently. The error curve is evaluated by using the least squares method, and free segmentation evaluation is performed. The evaluation results are comprehensively output with the hysteresis loss and the idle stroke, and a hysteresis curve is drawn.

[0014] After adopting the above technical scheme, the beneficial effect of the present invention is that the test accuracy of the test system of the present application document is significantly improved. Through real-time monitoring and multi-dimensional data collection, researchers can obtain high-quality test data, so as to more accurately evaluate the performance of the reducer. At the same time, the automated design of the system reduces the possibility of human intervention, reduces the uncertainty in the test process, and ensures the reliability of the data. The comprehensiveness and efficiency of the system will greatly promote the research and development and application of micro-torque precision reducers. Through effective performance evaluation, engineers can quickly identify deficiencies in the design and make targeted improvements. This not only improves the efficiency of research and development, but also enables new products to be put on the market faster, enhancing the competitiveness of enterprises. With the development of intelligent manufacturing and Industry 4.0, the performance test system has good scalability and compatibility, and can be linked with other intelligent devices and systems to lay the foundation for achieving a higher level of automation and informatization. The widespread application of this system will promote the improvement of industry standards for micro-torque precision reducers, promote the advancement of related technologies, and ultimately achieve more efficient and reliable mechanical transmission solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a system block diagram of the present invention. DETAILED DESCRIPTION

[0017] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0018] Example:

[0019] like Figure 1As shown, a micro-torque precision reducer performance test system includes a test calculation end, a measuring and controlling instrument, a drive motor, a load motor, an electric control cabinet, a control cabinet, an automatic locking mechanism, a precision moving mechanism, a torque sensor, a circular grating, a vibration sensor, a displacement measurement system, a control display system, a temperature sensor, a noise sensor and a precision guide rail mechanism; the torque sensor is used to measure the input and output torque of the test piece in real time, and the torque sensor is respectively installed near the input and output shafts, and outputs real-time signals to the measuring and controlling instrument; the drive motor provides drive torque for the test piece and is equipped with a torque sensor and a driver; the load motor provides resistance torque for the test piece and is equipped with a motor driver, so that the test piece can be tested under an external load; the electric control cabinet is used to control the test piece and the power supply; the control cabinet is used to install the drive motor, and the drive motor has a built-in emergency stop control circuit ; The automatic locking mechanism, precision moving mechanism and precision guide mechanism are used to realize automatic positioning of the tested piece; the circular grating is used to collect the input and output angles of the tested piece, and output real-time signals to the measuring and controlling instrument; the vibration sensor is used to collect the vibration data of the input and output ends of the tested piece; the displacement measurement system is used to measure the displacement of the precision moving mechanism of the tested piece, and output real-time signals to the measuring and controlling instrument; the control display system is used to display and control the operating status of the tested piece; the temperature sensor is used to collect the temperature of the tested piece, and output real-time signals to the measuring and controlling instrument; the noise sensor is used to collect the noise conditions of the tested piece during operation, and output real-time signals to the measuring and controlling instrument; the measuring and controlling instrument collects signals from the torque sensor, circular grating, displacement measurement system, vibration sensor, temperature sensor and noise sensor, performs test control and data processing, and stores the data in the test calculation end.

[0020] The micro-torque precision reducer performance test system involved in this technical solution has many significant differences and advantages compared with the prior art. Traditional reducer performance test systems usually rely on a single or fewer sensors for monitoring, lacking comprehensive analysis of multiple parameters, resulting in insufficient accuracy and comprehensiveness of the test results. The present invention integrates a variety of sensors and control components to achieve a comprehensive performance evaluation of the reducer under different working conditions. These sensors include torque sensors, circular gratings, vibration sensors, temperature sensors, and noise sensors, which can collect multiple performance data of the test piece in real time, and perform data processing and analysis through the measurement and control instrument, greatly improving the intelligence level of the test system.

[0021] In terms of working principle, the system first provides input drive torque to the reducer under test by the drive motor. At the same time, the load motor applies external resistance torque through the motor driver, so that the reducer is tested under real load conditions. In this process, the torque sensor monitors the torque of the input and output shafts in real time and transmits its signal to the measurement and control instrument. The circular grating is used to collect input and output angle data, providing accurate rotation information, further enhancing the reliability of the test results. In addition, the vibration sensor can monitor the vibration of the reducer in real time to ensure a comprehensive understanding of the mechanical performance during the test.

[0022] The control and data processing of the system is handled by the measuring and controlling instrument, which not only collects signals from various sensors, but also analyzes and processes these signals in real time. The measuring and controlling instrument stores the processed data in the test calculation terminal, and the user can view the operating status of the tested part in real time through the control display system, including torque, angle, displacement, temperature, noise and other indicators. This multi-parameter monitoring and analysis capability is often lacking in the existing technology, and often can only rely on manual inspection and single data recording, resulting in low test efficiency and prone to errors.

[0023] In terms of workflow, the system first starts the drive motor and load motor, and then adjusts the automatic locking mechanism and precision moving mechanism according to the preset test conditions to ensure the stability and precise positioning of the tested part during the test. Subsequently, the system starts the performance test and collects data such as torque, displacement, vibration, temperature and noise in real time. After processing these data, the measurement and control instrument provides corresponding control instructions to ensure the safety and effectiveness of the test process. After the test is completed, all data will be summarized to the test calculation end for subsequent data analysis and report generation.

[0024] As a preferred embodiment, the control display system is a touch screen, which is composed of a touch screen, a human-machine interface circuit, a touch screen interface and a communication module; the touch screen is used to display the information of the measuring and controlling instrument, including real-time measurement data, parameter settings and test control operation interface, etc.; the human-machine interface circuit realizes the collection and processing of touch screen input signals and sends them to the measuring and controlling instrument; the touch screen interface and communication module realize the communication connection between the measuring and controlling instrument and the human-machine interface circuit.

[0025] The control display system in this technical solution uses a touch screen as the core interactive interface, which has many significant differences and advantages compared to the existing technology. Traditional control display systems usually use physical input methods such as buttons, knobs or simple display screens. These methods are often not intuitive in operation. Users need to press multiple buttons to complete simple settings and controls, making the operation process cumbersome and inefficient. The touch screen design of this solution provides a more intuitive and user-friendly user interface. Users can quickly achieve parameter settings, data viewing and test control through gestures such as direct touch and sliding, which greatly improves the convenience and flexibility of operation.

[0026] In terms of information display, the touch screen can simultaneously display real-time measurement data, parameter settings, and test control information. Users can obtain the required information without switching between different display interfaces. This integrated information display method is significantly better than the scattered display mode in traditional technologies, which can improve user work efficiency and reduce the possibility of misoperation. At the same time, the touch screen can flexibly adjust the display content according to different test conditions and user needs, greatly enhancing the operability and applicability of the system.

[0027] In addition, the human-machine interface circuit in the scheme is responsible for collecting and processing the input signals of the touch screen. This design enables the system to respond to the user's input instructions efficiently and accurately. Compared with the traditional method, which often relies on more complex circuits and software programming to realize signal processing and forwarding, the human-machine interface circuit of this scheme can better simplify this process and improve the response speed and stability of the system.

[0028] The introduction of touch screen interface and communication module ensures efficient communication between the measuring and controlling instrument and the human-machine interface circuit. This modular design effectively improves the scalability and compatibility of the system. Users can configure and adjust the system more conveniently when upgrading or expanding functions in the future without making large-scale modifications to the entire system. This flexible design concept is often difficult to achieve in traditional technologies and usually requires high costs and time investment.

[0029] The measuring and controlling instrument is composed of two PCM-1801 high-performance modules, a control and communication module, a power supply and temperature control module, and a measuring and controlling instrument interface and communication module; the PCM-1801 high-performance module collects signals from torque sensors, circular gratings, displacement measurement systems, vibration sensors, temperature sensors, and noise sensors through input lines, performs test control and data processing after processing, and sends the data to the measuring and controlling instrument; the control and communication module is used to receive signals from the touch screen and to set and control the PCM-1801 module; the power supply and temperature control module is used to supply power and control the temperature of electronic components in the measuring and controlling instrument to prevent overheating and damage; the measuring and controlling instrument interface and communication module uses a network cable to transmit the test data in the measuring and controlling instrument to the test computing end through the TCP / IP protocol.

[0030] The difference between the above-mentioned measurement and control instrument technical solution and the prior art is mainly reflected in the modular design, the diversity of data acquisition and processing, the flexibility of control and communication, and the comprehensiveness of power supply and temperature control. First, the modular design makes the measurement and control instrument consist of two PCM-1801 high-performance modules, a control and communication module, a power supply and temperature control module, and a measurement and control instrument interface and communication module. Each module has independent functions, which is convenient for maintenance and upgrading. This structure is different from the traditional measurement and control instrument, which is often integrated in a single hardware, and can provide higher flexibility and scalability. Secondly, in terms of data acquisition, the solution supports signal acquisition of multiple sensors, including torque sensors, circular gratings, displacement measurement systems, vibration sensors, temperature sensors, and noise sensors, so that it can be applied in a variety of test scenarios, while the prior art can only support a limited number of types of sensors, which limits its scope of application. Furthermore, the design of the control and communication module enhances the convenience of interaction between the measurement and control instrument and the user, and can receive signals from the touch screen and set and control the PCM-1801 module. This flexible control method is relatively rare in traditional equipment, which usually uses physical buttons or simple interfaces. Finally, the introduction of the power supply and temperature control module effectively prevents the overheating of electronic components and ensures the stability of the instrument under long-term operation, which is often not fully considered in the existing technology, resulting in equipment failure under high load. Therefore, the measurement and control instrument has significant technical advantages in modular design, diversified sensor support, flexible control methods, and comprehensive power supply and temperature management, which is clearly different from the existing technology.

[0031] The electric control cabinet is composed of a driver, relays, contactors, an electric control cabinet mounting plate, and a wire rack; the driver includes a motor, a reducer driver, and an encoder card; the relay includes an air switch, a contactor, and a thermal relay; the contactor includes a main contact, an auxiliary contact, and a button; the electric control cabinet mounting plate is used to install the driver, relays, and contactors, and to lead out the power supply; the wire rack is used to straighten the cable routes of various electronic components.

[0032] The difference between the technical solution of the above-mentioned electric control cabinet and the prior art is mainly reflected in the integration of components, modular design of functions and convenience of maintenance. First of all, the electric control cabinet systematically integrates multiple key components such as drivers, relays, contactors, electric control cabinet mounting plates and wire racks to form a complete control system. This integration method can effectively reduce the footprint and installation complexity of the equipment. Compared with the prior art, each component is often dispersed, which increases the complexity of wiring and the difficulty of troubleshooting. Secondly, the design of the driver includes a motor, a reducer driver and an encoder card. This combination not only improves the performance of the drive system, but also makes the motion control more precise. The traditional electric control cabinet usually has a relatively simple structure for the drive system, lacking flexibility and adaptability. In addition, the configuration of the relay part includes an air switch, a contactor and a thermal relay. This multiple protection design greatly improves the safety and reliability of the system, ensuring that the power supply can be cut off in time in the event of a fault or overload to prevent equipment damage. The prior art may only use a single type of protection device, resulting in safety hazards. The design of the contactor includes main contacts, auxiliary contacts and buttons, providing more abundant control options, making the operation more convenient and meeting the needs of different users. Traditional electric control cabinets often have single functions and are difficult to adapt to diverse application scenarios. Finally, the design of the electric control cabinet mounting plate is optimized for the installation of drivers, relays and contactors, ensuring good coordination and connection stability between the various components. At the same time, the use of wire racks effectively regularizes the cable direction, reduces the possibility of line confusion, and improves the convenience of maintenance. This systematic design concept is not common in the existing technology, and often leads to problems such as complex operation and difficult maintenance during the use of the equipment. Therefore, overall, the electric control cabinet has shown obvious technical advantages in component integration, rich functions and convenient maintenance, which is significantly different from the existing technology.

[0033] The displacement measurement system is tested with no-load and load respectively. During the test, the rotation speed and load can be freely set within the rated range, and an error curve report is output independently. The error curve is evaluated by adopting the least squares method, and free segmentation evaluation is performed. The evaluation result is comprehensively output with the hysteresis loss and idle stroke, and a hysteresis curve is drawn.

[0034] The difference between the technical solution of the displacement measurement system and the prior art is mainly reflected in the flexibility of the test method, the data processing method and the richness of its output results. The system can perform no-load and load tests respectively. This flexible test method allows users to evaluate the performance of the system under multiple working conditions and ensure accurate measurement under different load conditions, while the prior art is often limited to a single test state and lacks a comprehensive evaluation of the variable working conditions in actual applications. This flexibility greatly enhances the adaptability and reliability of the system. During the test, the speed and load can be freely set within the rated range, which means that users can adjust the test parameters according to specific needs to obtain more targeted test data. In contrast, many prior art test systems usually only provide fixed test conditions, which cannot meet the needs of specific application scenarios, limiting their practicality. The function of independently outputting error curve reports not only improves the visualization of data, but also facilitates users to conduct subsequent analysis and decision-making. By adopting the least squares method for error assessment, the system can provide more accurate error analysis, which is lacking in many prior arts, which often only provide simple measurement results and lack in-depth error analysis and processing. In addition, the ability to perform free segmented evaluation allows users to perform detailed analysis of data from different segments and optimize the performance of the measurement system. This meticulous analysis is very rare in traditional technologies. The system can not only evaluate the results of the hysteresis loss and idle stroke comprehensive output, but also draw hysteresis curves. Through this process, users can have a more comprehensive understanding of the dynamic characteristics of the system and its response behavior, while existing technologies generally fail to provide such detailed dynamic characteristics analysis. This multi-dimensional data processing and result presentation method gives the displacement measurement system a significant advantage in performance evaluation, so that it can better meet user needs in practical applications. In summary, the above technical solutions are significantly superior to existing technologies in terms of test flexibility, data processing methods, and comprehensiveness of output results, reflecting its innovation and practicality.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A micro-torque precision reducer performance test system, characterized in that: It includes a test calculation end, a measuring and controlling instrument, a driving motor, a load motor, an electric control cabinet, a control cabinet, an automatic locking mechanism, a precision moving mechanism, a torque sensor, a circular grating, a vibration sensor, a displacement measurement system, a control display system, a temperature sensor, a noise sensor and a precision guide rail mechanism; the torque sensor is used to measure the input and output torque of the measured object in real time, and the torque sensor is respectively installed near the input and output shafts, and outputs real-time signals to the measuring and controlling instrument; the driving motor provides driving torque for the measured object, and is equipped with a torque sensor and a driver; The load motor provides a resistance torque for the tested object and is equipped with a motor driver so that the tested object can be tested under an external load; the electric control cabinet is used to control the tested object and the power supply; the control cabinet is used to install the drive motor, and the drive motor is equipped with an emergency stop control circuit; the automatic locking mechanism, the precision moving mechanism and the precision guide mechanism are used to realize the automatic positioning of the tested object; the circular grating is used to collect the input and output angles of the tested object and output real-time signals to the measuring and controlling instrument; the vibration sensor is used to collect the vibration data of the input and output ends of the tested object; the displacement measurement system is used to measure the displacement of the precision moving mechanism of the tested object and output real-time signals to the measuring and controlling instrument; the control display system is used to display and control the operation status of the tested object; the temperature sensor is used to collect the temperature of the tested object and output real-time signals to the measuring and controlling instrument; the noise sensor is used to collect the noise of the tested object during operation and output real-time signals to the measuring and controlling instrument; the measuring and controlling instrument collects the signals of the torque sensor, circular grating, displacement measurement system, vibration sensor, temperature sensor and noise sensor, performs test control and data processing, and stores the data in the test calculation end.

2. A micro-torque precision reducer performance test system as claimed in claim 1, characterized in that: The control display system is a touch screen, which consists of a touch screen, a human-machine interface circuit, a touch screen interface and a communication module; the touch screen is used to display the information of the measuring and controlling instrument, including real-time measurement data, parameter settings and test control operation interface, etc.; the human-machine interface circuit realizes the collection and processing of the touch screen input signal and sends it to the measuring and controlling instrument; the touch screen interface and communication module realize the communication connection between the measuring and controlling instrument and the human-machine interface circuit.

3. A micro-torque precision reducer performance test system as claimed in claim 1, characterized in that: The measuring and controlling instrument is composed of two PCM-1801 high-performance modules, a control and communication module, a power supply and temperature control module, and a measuring and controlling instrument interface and communication module; the PCM-1801 high-performance module collects signals from torque sensors, circular gratings, displacement measurement systems, vibration sensors, temperature sensors, and noise sensors through input lines, performs test control and data processing after processing, and sends the data to the measuring and controlling instrument; the control and communication module is used to receive signals from the touch screen and to set and control the PCM-1801 module; the power supply and temperature control module is used to supply power and control the temperature of electronic components in the measuring and controlling instrument to prevent overheating and damage; the measuring and controlling instrument interface and communication module uses a network cable to transmit the test data in the measuring and controlling instrument to the test computing end through the TCP / IP protocol.

4. A micro-torque precision reducer performance test system as claimed in claim 1, characterized in that: The electric control cabinet is composed of a driver, a relay, a contactor, an electric control cabinet mounting plate, and a wire rack; the driver includes a motor, a reducer driver, and an encoder card; the relay includes an air switch, a contactor, and a thermal relay; the contactor includes a main contact, an auxiliary contact, and a button; the electric control cabinet mounting plate is used to install the driver, relay, and contactor, and to lead out the power supply; The wire rack is used for arranging the cables of various electronic components.

5. A micro-torque precision reducer performance test system as claimed in claim 1, characterized in that: The displacement measurement system is tested with no-load and load respectively. During the test, the rotation speed and load can be freely set within the rated range, and an error curve report is output independently. The error curve is evaluated by adopting the least squares method, and free segmentation evaluation is performed. The evaluation result is comprehensively output with the hysteresis loss and idle stroke, and a hysteresis curve is drawn.

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