A vibration table horizontal sliding table oil liquid level control method and system

Abstract

The application discloses a kind of vibration table horizontal sliding platform oil liquid level control method and system, this method solves the problem of traditional sliding platform oil liquid level control control logic single, not considering temperature influence on oil viscosity and the response delay, low precision, poor working condition adaptability caused by lack of adjustment effect feedback.For technical scheme: position and temperature sensor are arranged in oil storage cavity to collect real-time data;When liquid level deviation is out of limit, according to the relationship between real-time temperature and preset optimal temperature, corresponding adjustment formula is selected to dynamically calculate and adjust the speed of oil return pump;Introduce adjustment efficiency index, dynamically correct the speed growth rate according to the actual effect after adjustment;At the same time, set three safety constraints of speed, liquid level deviation and temperature, immediately stop and alarm when abnormal.The application realizes self-adaptive high-precision control of vibration table horizontal sliding platform oil liquid level, effectively compensates the influence of temperature change, and significantly improves the stability and reliability of vibration table sliding platform operation.

Description

Technical Field

[0001] This invention relates to the field of vibration table technology, and in particular to a method and system for controlling the oil level of a horizontal slide of a vibration table. Background Technology

[0002] Electric vibration tables are key equipment used to simulate vibration environments and conduct reliability tests on complete machines or components. They are widely used in fields with extremely high vibration reliability requirements, such as aviation, aerospace, weaponry, shipbuilding, and vehicles. The horizontal slide table, as the core motion actuator of the vibration table, requires its hydraulic system to maintain a precise and stable oil level to ensure balanced system pressure, accurate motion output, and reliable test data. Fluctuations or loss of control in the oil level will directly lead to unstable hydraulic pressure, causing vibration distortion and decreased displacement accuracy of the horizontal slide table, and in severe cases, even equipment failure or test failure.

[0003] Currently, most common liquid level control methods for horizontal sliding tables in vibration tests employ a start-stop control strategy based on a fixed threshold. This means that when the liquid level rises to a preset upper limit, the return oil pump is activated to discharge oil, and when the liquid level drops to a preset lower limit, the return oil pump is stopped. This method has a simple control logic and does not dynamically adjust according to the real-time liquid level deviation. Therefore, under complex and continuously changing vibration conditions, it suffers from slow response, low adjustment accuracy, and a tendency for periodic liquid level fluctuations, making it difficult to meet the requirements of high-precision vibration testing.

[0004] Furthermore, during the long-term operation of the vibration table, the oil temperature will change due to factors such as friction and the environment, and the oil viscosity is extremely sensitive to temperature. When the temperature rises, the viscosity decreases, and the flow resistance decreases; when the temperature falls, the viscosity increases, and the flow resistance increases. This change will directly affect the oil discharge efficiency of the return pump. If a fixed speed or start / stop threshold is still used for control, it is very easy to cause over- or under-adjustment due to changes in oil flow, which may lead to system oscillation or control failure.

[0005] Existing control methods generally lack real-time evaluation and closed-loop correction mechanisms for regulation effects. Once the set parameters do not match the actual situation, the system cannot adaptively adjust, and regulation errors are prone to accumulate under varying operating conditions. Over long-term operation, this may lead to a gradual increase in liquid level deviation, affecting system stability and equipment lifespan. Summary of the Invention

[0006] The purpose of this invention is to overcome the problems in the prior art and provide a method and system for controlling the oil level of a horizontal slide table in a vibration table. This method and system abandons the traditional single adjustment mode, and simultaneously adjusts the return pump speed by combining oil temperature and level deviation, and performs feedback correction based on the level adjustment effect after speed adjustment, thereby improving control accuracy and response speed.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a method for controlling the oil level of a horizontal slide table of a vibration table, comprising the following steps:

[0008] S1. A position sensor and a temperature sensor are arranged in the oil storage chamber of the horizontal slide table, and the real-time temperature of the oil is dynamically collected by the temperature sensor. The position sensor dynamically acquires the real-time oil level position. The preset equilibrium position of the horizontal slide oil level is as follows: The preset allowable position deviation is Execute step S2;

[0009] S2, Calculation And determine whether it is satisfied. If yes, it is assumed that the liquid level is at equilibrium and the return oil pump maintains its current constant speed; otherwise, proceed to step S3.

[0010] S3, preset upper limit of oil temperature is recorded as The preset lower limit of oil temperature is denoted as The preset optimal oil temperature is The preset maximum allowable liquid level deviation is denoted as The rated speed of the return oil pump is recorded as follows: Define the speed adjustment amount as By judging the real-time temperature The optimal temperature of the oil is The relative sizes of the two are used to adjust the return oil pump speed based on the liquid level deviation and temperature deviation;

[0011] S4. Control the return oil pump to maintain the speed adjusted in step S3, with an interval of [time]. Then, record the liquid level before speed adjustment as follows: The liquid level after speed adjustment is Determine whether it satisfies If yes, the return oil pump will maintain its current constant speed; otherwise, proceed to step S5.

[0012] S5, preset adjustment maximum effective rate and the minimum effective rate of adjustment Calculate the effective rate of regulation And determine whether it is satisfied. ;

[0013] If so, it is determined that the current speed growth rate meets the preset requirements, and the process returns to step S3 to readjust the return oil pump speed;

[0014] If not, then the speed increase rate Make corrections, namely:

[0015] like Speed ​​growth rate Increase ;

[0016] like Speed ​​growth rate reduce ;

[0017] After correction, return to step S3;

[0018] The execution of steps S3 to S5 must meet certain constraints. If any constraint is not met, a stop signal is immediately generated to control the vibration table and return oil pump to stop, and an alarm signal is also generated. Through the above closed-loop feedback adjustment process, adaptive and high-precision dynamic compensation for liquid level deviation is achieved under complex vibration conditions and oil temperature changes, overcoming the problems of slow response and low adjustment accuracy of traditional start-stop control.

[0019] Furthermore, the constraints include:

[0020] a. Real-time speed of the return oil pump The adjustment process must meet the following requirements. ;

[0021] b. Real-time liquid level deviation meets the requirements ;

[0022] c. Real-time temperature meets requirements By setting multiple safety boundaries for speed, liquid level, and temperature, the system effectively prevents continuous operation of the equipment under abnormal conditions, avoiding system failures and test failures caused by overshoot, overload, or temperature runaway.

[0023] Further, in step S3, the step of determining the real-time temperature... The optimal temperature of the oil is The relationship between the magnitudes is used to adjust the return oil pump speed based on the liquid level deviation and temperature deviation. The specific details are as follows:

[0024] If real-time temperature satisfy If the condition is met, then proceed to step S31; otherwise, proceed to step S32.

[0025] S31. At this point, the oil viscosity is not sensitive to temperature. Based on the oil level distribution on both sides of the equilibrium position, there are two scenarios for adjusting the return oil pump speed:

[0026] like At this point, the liquid level is higher than the equilibrium position, so the speed of the return oil pump needs to be increased to accelerate oil discharge. ,in The speed increase rate;

[0027] like At this point, the liquid level is below the equilibrium position, so the speed of the return oil pump needs to be reduced to decrease oil discharge. ;

[0028] After completing this step, continue with step S4;

[0029] S32. At this point, the oil viscosity is sensitive to temperature. Based on the oil level distribution on both sides of the equilibrium position, there are two scenarios for adjusting the return oil pump speed:

[0030] like At this point, the liquid level is higher than the equilibrium position, so the speed of the return oil pump needs to be increased to accelerate oil discharge; the speed of the return oil pump increases. ;

[0031] like At this point, the liquid level is below the equilibrium position, so the speed of the return oil pump needs to be reduced to decrease oil discharge; the speed of the return oil pump needs to be reduced. ;

[0032] After completing this step, proceed to step S4. By differentiating the temperature-sensitive range of oil viscosity and employing different adjustment strategies for each range, the speed adjustment can more accurately reflect the actual flow characteristics of the oil, thereby compensating for the impact of temperature changes on oil discharge efficiency and improving the adaptability and accuracy of control.

[0033] Furthermore, the allowable position deviation is The value range is 2mm~3mm, and the speed increase rate is... The initial value ranges from 0.1 to 0.2, and the allowable maximum liquid level deviation... The value range is 25mm~30mm. By setting a reasonable initial growth rate and maximum permissible deviation, a stable and flexible adjustment starting point and safety margin are provided for the system, ensuring that the control process has both rapid response capability and safe operation within an acceptable range.

[0034] Furthermore, the optimal temperature of the oil The value range is 30℃~40℃, and the upper limit of the oil temperature is... The value range is 80℃~100℃, and the lower limit of the oil temperature is... The value range is -20℃ to -10℃. By defining the optimal operating temperature range and safety limits of the hydraulic fluid, the control system can more precisely adjust the speed compensation strategy according to the deviation between the actual temperature and the ideal state, ensuring that the hydraulic system operates efficiently and stably within the suitable temperature range.

[0035] Furthermore, the time interval The value is set to 5 minutes. By setting a reasonable feedback detection cycle, the system can effectively evaluate the adjustment effect and achieve dynamic correction in a timely manner, while avoiding system oscillations or waste of processing resources caused by excessively frequent detection, thus balancing control accuracy and system stability.

[0036] Furthermore, the maximum effective rate of the adjustment is The value range is 1.2 to 1.3, and the minimum effective rate of adjustment is... The value range is 0.2 to 0.3. By setting clear quantitative evaluation criteria for the adjustment effect, a reliable basis is provided for the dynamic correction of the speed growth rate, thereby effectively identifying and correcting problems of under-adjustment or over-adjustment, and ensuring that each adjustment action can be carried out in the direction of convergence to the equilibrium position.

[0037] A hydraulic fluid level control system for a horizontal slide of a vibration table includes a position sensor, a temperature sensor, and a control processing module.

[0038] Both the position sensor and the temperature sensor are arranged inside the oil storage chamber of the horizontal slide. The position sensor is used to dynamically acquire the real-time oil level position. The temperature sensor is used to dynamically acquire the real-time temperature of the oil. ;

[0039] The position sensor and temperature sensor are electrically connected to the control processing module via data lines. The control processing module is configured to execute the aforementioned hydraulic level control method for the horizontal slide of the vibration table, achieving precise and stable control of the hydraulic level. By integrating sensing, processing, and execution units and running the aforementioned adaptive closed-loop control method, this system constitutes a control entity capable of real-time condition sensing, intelligent decision-making, and precise execution, fundamentally improving the automation level and long-term operational reliability of the hydraulic system of the horizontal slide of the vibration table.

[0040] Furthermore, the control processing module also has a real-time constraint verification function, which checks the real-time speed of the return oil pump when it detects the speed of the return oil pump. Exceeding Range, real-time liquid level deviation exceeds The range or real-time temperature exceeds When the system reaches the specified range, a stop signal is immediately generated to control the vibration table and return oil pump to shut down, along with an alarm signal. By integrating multiple safety constraints into the real-time monitoring logic of the control processing module, continuous protection of key operating parameters is achieved. This enables rapid intervention when potential risks occur, effectively preventing equipment damage and safety accidents, and enhancing the overall robustness of the system.

[0041] Furthermore, it also includes an alarm module, which is electrically connected to the control processing module. This alarm module receives alarm signals from the control processing module and executes alarm actions. The independent alarm module ensures that any abnormal state can be clearly and promptly communicated to the operator, facilitating rapid fault location and maintenance measures, thereby maximizing the continuity of the testing process and the validity of the test data.

[0042] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0043] 1. Achieve precise dynamic control of oil level, effectively improving the operational stability of the horizontal slide of the vibration table. This technology collects oil level and temperature data in real time through position and temperature sensors. Based on the classification of oil level deviation, it determines the adjustment needs and adopts a differentiated speed adjustment formula combined with oil temperature differences. Simultaneously, it introduces an effective adjustment feedback correction mechanism, which can quickly offset oil level fluctuations and avoid the oil level imbalance problem caused by traditional fixed speed control. This ensures that the oil level is always stable within the allowable range of the equilibrium position, providing reliable oil support for the smooth operation of the horizontal slide.

[0044] 2. Possesses wide operating condition adaptability, significantly improving system operating efficiency and energy saving. Targeted adjustment strategies are designed for different oil temperature conditions. When the oil temperature deviates from the optimal range, the rotational speed is adjusted simultaneously based on both liquid level and temperature deviations. This ensures efficient oil circulation in low-temperature environments while avoiding energy waste caused by excessive adjustment in high-temperature environments. Furthermore, dynamic correction of the rotational speed increase rate adapts to different liquid level fluctuation scenarios, achieving adaptive adjustment across all operating conditions without manual intervention. This reduces maintenance costs while improving system operating economy.

[0045] 3. Construct a comprehensive safety protection system to significantly improve equipment operation safety and service life. By real-time verification of triple constraints of speed, liquid level, and temperature, dangerous operating conditions such as exceeding rated speed, exceeding limit liquid level, and exceeding temperature can be identified in a timely manner, quickly triggering shutdown and alarm actions to avoid malfunctions such as oil leakage and equipment jamming. The linkage design of the alarm module and control processing module can remind maintenance personnel to handle abnormalities in the first instance, reducing the risk of escalation of faults, effectively extending the service life of key components such as vibration table and return oil pump, and reducing equipment maintenance costs. Attached Figure Description

[0046] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0047] Figure 1 This is a schematic diagram of the horizontal sliding table structure.

[0048] Figure 2 This is a schematic diagram of the principle of the oil level control method for the horizontal slide of the vibration table.

[0049] Figure 3 This is a flowchart of the method for controlling the oil level of the horizontal slide of the vibration table.

[0050] The attached diagram is labeled as follows: 1. Position sensor; 2. T-shaped guide rail; 3. Horizontal slide; 4. Temperature sensor; 5. Return oil pump; 6. Return oil pipe; 7. Oil collecting valve. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0052] like Figure 1 As shown, this embodiment provides a hydraulic oil level control system for a horizontal slide of a vibration table, including a position sensor 1, a temperature sensor, a control processing module, a return oil pump 5 drive module, and an alarm module. The position sensor 1 is a high-precision capacitive level sensor, and the temperature sensor 4 is a PT100 platinum resistance temperature sensor. Both are fixedly installed at preset monitoring positions in the hydraulic oil storage chamber of the horizontal slide 3 to ensure accurate acquisition of real-time hydraulic oil status data. The control processing module can use an STM32F407 microcontroller, the return oil pump 5 drive module uses a DC brushless motor driver, and the alarm module uses an audible and visual alarm light. The signal output terminals of the position sensor 1 and the temperature sensor 4 are electrically connected to the ADC acquisition interface of the control processing module via data lines. The PWM output interface of the control processing module is electrically connected to the return oil pump 5 drive module, and the alarm module is electrically connected to the IO output interface of the control processing module, forming a complete signal acquisition-processing-execution closed loop. Figure 1 1 is a position sensor; 2 is a T-shaped guide rail; 3 is a horizontal slide; 4 is a temperature sensor; 5 is a return oil pump; 6 is a return oil pipe; and 7 is an oil collecting valve.

[0053] like Figures 2-3 As shown in the figure, this embodiment also provides a method for controlling the oil level of a horizontal slide of a vibration table, which specifically includes the following steps:

[0054] Step S1: Position sensor 1 and temperature sensor 4 are arranged in the oil storage chamber of the horizontal slide 3. The real-time temperature of the oil is dynamically collected by the temperature sensor 4 and recorded as follows: The real-time oil level position is dynamically acquired and recorded by the position sensor 1. The preset oil level equilibrium position of the horizontal slide 3 is as follows: The preset allowable position deviation is Proceed to the next step.

[0055] Step S2, Calculation And determine whether If the condition is met, the liquid level is considered to be at equilibrium, and the return oil pump 5 maintains its current constant speed.

[0056] like At this point, step S3 is executed.

[0057] Step S3, the preset upper limit of oil temperature is recorded as The preset lower limit of oil temperature is denoted as The preset optimal oil temperature is The preset maximum allowable liquid level deviation is denoted as The rated speed of return oil pump 5 is recorded as follows: Define the speed adjustment amount as If the real-time temperature at this time satisfy If the condition is met, proceed to step S31; otherwise, proceed to step S32.

[0058] Step S31: At this point, the oil viscosity is not sensitive to temperature. Based on the oil level distribution on both sides of the equilibrium position, the adjustment scheme for the speed of the return oil pump 5 is divided into two cases:

[0059] like At this point, the liquid level is higher than the equilibrium position, so the speed of return oil pump 5 needs to be increased to accelerate oil discharge; the speed of return oil pump 5 is increased. ,in The speed increase rate;

[0060] like At this point, the liquid level is below the equilibrium position, so the speed of return oil pump 5 needs to be reduced to decrease oil discharge; the speed of return oil pump 5 is reduced. ;

[0061] After completing this step, proceed to step S4.

[0062] Step S32: At this point, the oil viscosity is sensitive to temperature. Based on the oil level distribution on both sides of the equilibrium position, there are two scenarios for adjusting the speed of the return oil pump 5:

[0063] like At this point, the liquid level is higher than the equilibrium position, so the speed of return oil pump 5 needs to be increased to accelerate oil discharge; the speed of return oil pump 5 is increased. ;

[0064] like At this point, the liquid level is below the equilibrium position, so the speed of return oil pump 5 needs to be reduced to decrease oil discharge; the speed of return oil pump 5 is reduced. ;

[0065] After completing this step, proceed to step S4.

[0066] Step S4: Control the return oil pump 5 to maintain the speed adjusted in step S3, with an interval of [time missing]. Then, record the liquid level before speed adjustment as follows: The liquid level after speed adjustment is Determine whether the condition is met. If satisfied The return oil pump 5 maintains a constant operating speed.

[0067] If not satisfied Then proceed to step S5.

[0068] Step S5: The preset maximum effective rate is The minimum effective rate of adjustment is The effective rate of adjustment is recorded as follows: ;calculate And determine whether it is satisfied. ;

[0069] If satisfied If the current speed growth rate meets the preset requirements, return to step S3 to readjust the speed of the return oil pump 5;

[0070] If not satisfied After correcting the speed growth rate in step S51, return to step S3 to readjust the speed of the return oil pump 5.

[0071] Step S51, according to The size can be divided into two cases:

[0072] like Speed ​​growth rate Increase Return to step S3;

[0073] like Speed ​​growth rate reduce Return to step S3.

[0074] In one optional embodiment, the speed adjustment and correction process must meet the following constraints:

[0075] (1) Real-time speed of return oil pump 5 The adjustment process must meet the following requirements. ;

[0076] (2) Real-time liquid level deviation meets ;

[0077] (3) Real-time temperature meets ;

[0078] If any of the above constraints are not met, the vibration table and return oil pump 5 shall be stopped immediately and an alarm signal shall be given.

[0079] The horizontal slide 3 oil level balance position The value range is 40mm~60mm, and the allowable position deviation is... The value range is 2mm~3mm, and the speed increase rate is... The initial value ranges from 0.1 to 0.2, and the allowable maximum liquid level deviation is... The value range is 25mm~30mm, and the optimal oil temperature is... The value range is 30℃~40℃, and the upper limit of the oil temperature is... The value range is 80℃~100℃, and the lower limit of the oil temperature is mentioned. The value range is -20℃ to -10℃, and the time interval is... The value is 5 minutes, and the maximum effective rate of the adjustment is... The range is 1.2 to 1.3, and the minimum effective rate of adjustment is... The value range is 0.2 to 0.3.

[0080] This invention illustrates the complete technical implementation path of the vibration table horizontal slide oil level control method and system. The system uses a position sensor 1 and a temperature sensor 4 deployed within the slide oil storage chamber to collect real-time liquid level and temperature data, which are then processed by the control module for core calculations and decisions. The core of the control strategy lies in coupling and analyzing the real-time liquid level deviation with the oil temperature, based on the sensitivity of the oil viscosity to temperature (using a preset optimal temperature). (Using a boundary), the precise speed adjustment of the return oil pump 5 is dynamically selected and calculated. When the temperature has a significant impact, a temperature compensation term is innovatively introduced into the adjustment, thereby actively offsetting the interference of oil viscosity changes on oil discharge efficiency.

[0081] During implementation, the system introduces "adjustment efficiency" (…). This quantitative indicator was used to construct a dynamic closed-loop feedback mechanism. After each adjustment, the system evaluates the actual effect and adjusts the speed growth rate accordingly. The system performs self-tuning to ensure that the control parameters can adapt to the evolution of complex operating conditions. At the same time, the implementation process strictly follows the preset triple constraints—safety thresholds for real-time speed, liquid level deviation, and oil temperature. If any one of these exceeds the limit, it will trigger an emergency shutdown and alarm, providing an active protection barrier for the system.

[0082] In summary, this specific implementation presents a complete closed-loop intelligent control system encompassing perception, decision-making, execution, feedback, and protection. This method and system not only significantly improve the response speed and steady-state accuracy of liquid level control, effectively overcoming the technical challenges posed by temperature disturbances, but also fundamentally enhance the operational reliability and test data validity of the vibration table in long-term, complex testing tasks through built-in safety constraints and adaptive learning capabilities. It provides a stable and reliable hydraulic foundation for high-precision vibration environment simulation, demonstrating significant engineering application and promotion value.

[0083] 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 principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for controlling the oil level of a horizontal slide table of a vibration table, characterized in that, Includes the following steps: S1. A position sensor and a temperature sensor are arranged in the oil storage chamber of the horizontal slide table, and the real-time temperature of the oil is dynamically collected by the temperature sensor. The position sensor dynamically acquires the real-time oil level position. The preset equilibrium position of the horizontal slide oil level is as follows: The preset allowable position deviation is Execute step S2; S2, Calculation And determine whether it is satisfied. If yes, it is assumed that the liquid level is at equilibrium and the return oil pump maintains its current constant speed; otherwise, proceed to step S3. S3, preset upper limit of oil temperature is denoted as The preset lower limit of oil temperature is denoted as The preset optimal oil temperature is The preset maximum allowable liquid level deviation is denoted as The rated speed of the return oil pump is recorded as follows: Define the speed adjustment amount as By judging the real-time temperature The optimal temperature of the oil is The relative sizes of the two are used to adjust the return oil pump speed based on the liquid level deviation and temperature deviation; S4. Control the return oil pump to maintain the speed adjusted in step S3, with an interval of [time]. Then, record the liquid level before speed adjustment as follows: The liquid level after speed adjustment is Determine whether the condition is met. If yes, the return oil pump will maintain its current constant speed; otherwise, proceed to step S5. S5, preset adjustment maximum effective rate and the minimum effective rate of adjustment Calculate the effective rate of regulation And determine whether it is satisfied. ; If so, it is determined that the current speed growth rate meets the preset requirements, and the process returns to step S3 to readjust the return oil pump speed; If not, then the speed increase rate Make corrections, namely: like Speed ​​growth rate Increase ; like Speed ​​growth rate reduce ; After correction, return to step S3; The execution of steps S3 to S5 must meet the constraints. If any constraint is not met, a stop signal is immediately generated to control the vibration table and return oil pump to stop, and an alarm signal is generated. In step S3, the real-time temperature is determined. The optimal temperature of the oil is The relationship between the magnitudes is used to adjust the return oil pump speed based on the liquid level deviation and temperature deviation. The specific details are as follows: If real-time temperature satisfy If the condition is met, then proceed to step S31; otherwise, proceed to step S32. S31. At this point, the oil viscosity is not sensitive to temperature. Based on the oil level distribution on both sides of the equilibrium position, there are two scenarios for adjusting the return oil pump speed: like At this point, the liquid level is higher than the equilibrium position, so the speed of the return oil pump needs to be increased to accelerate oil discharge. ,in The speed increase rate; like At this point, the liquid level is below the equilibrium position, so the speed of the return oil pump needs to be reduced to decrease oil discharge. ; After completing this step, continue with step S4; S32. At this point, the oil viscosity is sensitive to temperature. Based on the oil level distribution on both sides of the equilibrium position, there are two scenarios for adjusting the return oil pump speed: like At this point, the liquid level is higher than the equilibrium position, so the speed of the return oil pump needs to be increased to accelerate oil discharge; the speed of the return oil pump increases. ; like At this point, the liquid level is below the equilibrium position, so the speed of the return oil pump needs to be reduced to decrease oil discharge; the speed of the return oil pump needs to be reduced. ; After completing this step, proceed to step S4.

2. The method for controlling the oil level of a horizontal slide table of a vibration table according to claim 1, characterized in that, The constraints include: a. Real-time speed of the return oil pump The adjustment process must meet the following requirements. ; b. Real-time liquid level deviation meets the requirements ; c. Real-time temperature meets requirements .

3. The method for controlling the oil level of a horizontal slide table of a vibration table according to claim 1, characterized in that, The allowable position deviation is The value range is 2mm~3mm, and the speed increase rate is... The initial value ranges from 0.1 to 0.2, and the allowable maximum liquid level deviation... The value range is 25mm~30mm.

4. The method for controlling the oil level of a horizontal slide table of a vibration table according to claim 1, characterized in that, The optimal temperature of the oil The value range is 30℃~40℃, and the upper limit of the oil temperature is... The value range is 80℃~100℃, and the lower limit of the oil temperature is... The value range is -20℃ to -10℃.

5. The method for controlling the oil level of a horizontal slide table of a vibration table according to claim 1, characterized in that, The interval time The value is 5min.

6. The method for controlling the oil level of a horizontal slide table of a vibration table according to claim 1, characterized in that, The maximum effective rate of the regulation is The value range is 1.2 to 1.3, and the minimum effective rate of adjustment is... The value range is 0.2 to 0.

3.

7. A hydraulic level control system for a horizontal slide table of a vibration table, characterized in that, Includes a position sensor, a temperature sensor, and a control processing module; Both the position sensor and the temperature sensor are arranged inside the oil storage chamber of the horizontal slide. The position sensor is used to dynamically acquire the real-time oil level position. The temperature sensor is used to dynamically acquire the real-time temperature of the oil. ; The position sensor and temperature sensor are electrically connected to the control processing module via data lines. The control processing module is configured to execute the oil level control method of the horizontal slide of the vibration table as described in any one of claims 1-6, so as to achieve precise and stable control of the oil level.

8. The hydraulic level control system for a horizontal slide table of a vibration table according to claim 7, characterized in that, The control processing module also has a real-time constraint verification function, which detects the real-time speed of the return oil pump. Exceeding Range, real-time liquid level deviation exceeds The range or real-time temperature exceeds When the signal is within the specified range, a stop signal is immediately generated to control the vibration table and return oil pump to stop, and an alarm signal is also generated.

9. The hydraulic level control system for a horizontal slide table of a vibration table according to claim 7, characterized in that, It also includes an alarm module, which is electrically connected to the control processing module and is used to receive alarm signals sent by the control processing module and execute alarm actions.

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