146 results about "Servo actuator" patented technology

The embodiment of the invention provides an error compensation method and system for a linear servo actuator, and the method comprises the steps: obtaining the error sensing data of different error sources through a displacement feedback device, a temperature collection device, a force feedback device, a vibration collection device and other sensing devices, and carrying out the fusion processing of the error sensing data, according to the method, a dynamic error model capable of reflecting the coupling relation of different error sources along with time change is constructed, then an error compensation signal containing the superposition result of a feed-forward compensation component and a feedback compensation component is generated according to the dynamic error model, and finally the error compensation signal is loaded to a driving module of an actuator. And the displacement output of the actuating mechanism is adjusted to offset the error influence, and the control precision and stability of the linear servo actuator under the complex operation working condition are improved.

The invention provides a data co-processing method and system for a linear servo actuator. The method comprises the following steps: firstly, acquiring a multi-level temperature data set of a key heat source area in the linear servo actuator; performing dynamic coupling analysis processing on the multi-level temperature data set based on a thermal field prediction model to generate a temperature change trend prediction result; a dynamic heat dissipation strategy grade is matched according to the temperature change trend prediction result and real-time load current data, a heat dissipation execution control instruction is generated, and temperature feedback data in the heat dissipation process is monitored in real time; and based on a comparison result of the temperature feedback data and a preset temperature threshold, triggering a thermal failure protection mechanism to adjust the execution priority of the composite heat dissipation operation. According to the invention, power output can be reduced, external active heat dissipation control is triggered, equipment shutdown and other related instructions which are in effective contact with an abnormal working state can be triggered, so that the risk of equipment damage caused by abnormal operation of the actuator is effectively reduced, and the reliability and stability of the system are improved.

The invention discloses a visual alignment method and device for printing draft intelligent deflection and spraying vehicle cooperative control, and belongs to the technical field of machine visual localization, and the method specifically comprises the steps: firstly, arranging a calibration target in an ink-jet printing area, employing an image collection device to collect an image, and calculating a rigid transformation matrix of a visual coordinate system and a printer spraying vehicle coordinate system; establishing high-precision coordinate mapping; the control terminal reads the reference position and attitude information of the original draft in the spraying vehicle coordinate system from the production management system; the method comprises the following steps: after primary inkjet of a paperboard, shooting the whole paperboard by an image acquisition device, and extracting actual contour features and coordinates of a draft through image processing; the coordinates are mapped to a spraying vehicle coordinate system through a transformation matrix, and a rotation deviation angle and a translation deviation vector are calculated; analyzing to obtain angle and translation compensation values, packaging the angle and translation compensation values into a control instruction, and sending the control instruction to ink-jet printing control software through a real-time bus; finally, software drives a servo executing mechanism, the position and the posture of the spraying vehicle are adjusted according to a new target, and accurate alignment with the paperboard is achieved.

The invention discloses a strike-slip fault buried pipeline test loading device capable of considering soil body action, and belongs to the technical field of geotechnical engineering tests. The device comprises a double-shaft loading system, a fixing device, a pipeline system and an axial force and bending moment combined loading system, the device is specifically divided into a three-dimensional adjustable reaction frame, an axial servo actuator, a radial servo actuator, a distribution cross beam with a movable hinged support, a pipe hoop restraint device, a pipeline test piece, an adjustable arc-shaped supporting cushion block, a flange type end plate, a movable hinged support and an adjustable spring set. And meanwhile, a loading curve of the axial force and the bending load of the pipeline under strike-slip fault dislocation is established. And the axial servo actuator and the radial servo actuator carry out four-point bending loading on the pipeline according to the established load applying curve of the axial force and the bending moment. According to the test device and the loading system, the stress state of the oil and gas pipeline under strike-slip fault dislocation can be reproduced, and the failure mode and deformation characteristics of the pipeline without soil constraint under axial force and bending moment loads are disclosed.

The invention relates to the technical field of position control, in particular to a servo closed-loop full-automatic plugging visual control method and system, and the method comprises the following steps: obtaining a static direction and an attitude angle of a plugging interface, constructing a reference configuration, calculating a current attitude deviation and an inclination angle to generate an offset configuration, extracting an offset angle comparison tolerance, and adjusting a servo actuator. According to the method, the attitude judgment precision is improved by collecting the attitude angles of the contact pin and the interface to construct the angle vector, calibrating and generating the reference configuration, the direction deviation index is formed by combining the attitude deviation and the inclination angle, and the direction recognition accuracy is enhanced; an adjusting instruction is generated through the difference value of the deviation angle and the Euler angle, dynamic response and self-adaptive adjustment are achieved, current, position and speed changes in disturbance signals are synchronously collected, disturbance vectors are constructed, the trend is analyzed, the plugging state is judged, stability monitoring and closed-loop adjustment are achieved, and plugging consistency and control precision are improved.

The invention provides a helicopter nose landing gear fatigue test device, and the device comprises a bottom plate which is connected and fixed to a ground grooved rail; the fixed connecting plate is fixed on the bottom plate through a bolt; wherein the lower end connecting structure of the test piece is of a square structure, the periphery of the lower end connecting structure is connected to the fixed connecting plate through rivets, and the airplane wheel fake part assemblies are arranged on the two sides of the upper end connecting structure of the test piece. One end of the loading double-fork lug is connected with the airplane wheel fake part assembly; the torsion-proof bolt is connected with the airplane wheel fake part assembly; one end of the loading single fork ear is connected with the other end of the loading double fork ear; the servo actuation loading mechanism is connected with the other end of the loading single fork lug; wherein the servo actuation loading mechanism is used for realizing loading in the heading direction, the lateral direction and the vertical direction; meanwhile, the invention further provides a helicopter nose landing gear fatigue test method.

The invention relates to the technical field of stress loading tests of engineering structural members, in particular to a composite torsional loading test device. In order to solve the problem that a connecting line of rotation centers of a servo actuator and a two-force rod relative to a loading beam in a traditional composite torsional loading test device is not parallel to the length arrangement direction of the loading beam, a novel composite torsional loading test device is provided. Comprising a loading beam, a servo actuator, a two-force rod, a reaction wall, an axial jack, a reaction assembly and a base, a front vertical rotating shaft and a rear vertical rotating shaft are fixed in the loading beam, the axis connecting line of the front vertical rotating shaft and the rear vertical rotating shaft is parallel to the length arrangement direction of the loading beam, and the front vertical rotating shaft and the rear vertical rotating shaft are rotationally sleeved with a front sleeve and a rear sleeve respectively. The right end of the servo actuator and the right end of the two-force rod are fixed to the rear sleeve and the front sleeve respectively. According to the device, the data processing difficulty is simplified, and the test accuracy is improved.

The invention discloses an aero-engine turbine blade material in-situ mechanical test system and method, and the system comprises a multi-axis loading unit which is used for simulating the multi-axis stress state of a turbine blade under an actual working condition; the high-temperature environment module is used for realizing local rapid heating of the sample; the in-situ observation system integrates a high-temperature microscope lens with a long working distance and a high-speed camera and is used for observing and recording microscopic damage evolution of the turbine blade sample in a high-temperature loading process in real time; and the control unit is internally provided with a temperature-stress decoupling control model and a microdefect identification model and is used for compensating the plastic deformation heat effect in real time and quantifying the damage factor D. Synchronous loading of centrifugal force is achieved through the three-axis servo actuator, composite stress is accurately reproduced, the load error is small, and the limitation that a traditional single-axis test cannot simulate the multi-source load of the blade is broken through. Meanwhile, plastic work-induced temperature rise interference is reduced, and the technical problem of data distortion caused by temperature drift in a high-temperature test is solved.

The utility model discloses a closed-loop servo control system of a dynamic compression-shear testing machine, which belongs to the technical field of electrical control of testing machines and comprises a controller and a servo actuator, and the servo actuator is provided with an electro-hydraulic servo valve, a displacement sensor and a load sensor. The displacement sensor is connected with an input port X7 of the controller through a displacement sensor amplification conditioning circuit; the load sensor is connected with an input port X14 of the controller through a load sensor amplification conditioning circuit; and the electro-hydraulic servo valve is connected with an output port X18 of the controller through a servo valve driving circuit. According to the utility model, the axial controller, the horizontal controller and the corner controller are used for controlling the corresponding loading oil cylinders, and the displacement sensor and the load sensor in the servo actuator are used for carrying out position detection and pressure detection on a controlled unit, so that more accurate position control and force control are obtained; therefore, errors generated in the transmission process between the hydraulic station and the oil cylinder are eliminated, and the working precision of equipment is improved.

The embodiment of the invention provides an intelligent temperature control system and method for a linear servo actuator, and the method comprises the steps: obtaining the surface temperature distribution data of a power device through embedding a first temperature sensing array in a circuit board of the linear servo actuator, and capturing the temperature gradient data of a heat dissipation channel through arranging a second temperature sensing array on the inner wall of a housing; inputting the data, the real-time load current and the motion frequency into a heat conduction model to generate a future temperature trend prediction result, selecting an active heat dissipation mode of a corresponding level from a preset heat dissipation strategy library according to the highest temperature point position and the temperature rise rate in the future temperature trend prediction result, sequentially activating a heat dissipation assembly set according to the active heat dissipation mode, and performing heat dissipation according to the active heat dissipation mode. And temperature feedback data are continuously acquired to adjust the heat dissipation intensity, so that intelligent and efficient temperature control of the linear servo actuator is realized, and the stability and reliability of equipment are improved.

The invention relates to the technical field of automobile part testing, in particular to automobile door hinge durability test equipment which comprises a base, an automobile door body and a control system, a first mounting seat and a second mounting seat are mounted on the base and the automobile door body respectively, and a servo actuator is hinged between the first mounting seat and the second mounting seat. A load sensor is mounted between the servo actuator and the first mounting seat, and a first displacement sensor is mounted on the servo actuator; a servo actuator, a load sensor and a displacement sensor are integrated on the same control system, a closed-loop force control system is constructed, and a traditional constant air cylinder load is replaced; the test deviation caused by load distortion is avoided, and the test authenticity, the working condition simulation precision and the data reliability of the automobile door hinge durability test equipment are ensured.

The invention discloses a ground testing device and method for a high-thrust electric servo steering engine based on torsion bar spring composite loading, and belongs to the field of aviation aircraft design. According to the invention, the elastic deformation of the torsion bar spring is utilized to resist the torque transmitted by the motor actuator cylinder, and the actual flight load of the control surface is simulated. A plurality of groups of high-rigidity spiral springs (the rigidity coefficient is 10-100N / mm) are connected in parallel, so that 0-600Nm multi-stage torque output is realized; a mechanism driven by a servo motor is integrated, and according to different spring sets and the working length of the torsion bar, a servo steering engine is driven to stretch out and draw back through a target torque real-time conversion algorithm, so that the torsion bar is rotated to achieve the target torque.

The utility model belongs to the technical field of actuator installation, in particular to an installation frame of a servo actuator, which comprises a servo actuator main body and an installation frame body, the top of the installation frame body is provided with an installation groove, and the servo actuator main body comprises an electro-hydraulic servo valve and an actuating cylinder positioned on the inner side of the electro-hydraulic servo valve. According to the mounting frame of the servo actuator, an electro-hydraulic servo valve on a servo actuator body is clamped to the inner side of a mounting groove, the front portion, the rear portion and the bottom of the electro-hydraulic servo valve are limited, a fixing screw rod is sleeved with a fastening plate so that the fastening plate can be clamped in a clamping groove, then the fixing screw rod is sleeved with a fastening lantern ring in a threaded mode, and therefore the electro-hydraulic servo valve can be fixed. The fastening sleeve ring is rotated to drive the fastening plate to move downwards, so that the fastening plate is tightly clamped with the clamping groove, the top, the left side and the right side of the electro-hydraulic servo valve can be limited, the servo actuator body can be limited and fixed in multiple directions after being installed, and the stability of the electro-hydraulic servo valve in the operation process is further improved.

The utility model relates to the technical field of optical element assembly, and provides a servo control tool for high-precision installation of a super-large lens, which comprises a base, the top end of the base is fixedly connected with a lens seat support, the top end of the lens seat support is movably connected with a lens seat, the lens seat and the lens seat support are not limited in the horizontal direction, and the lens seat support is movably connected with the lens seat. A lens is installed in the lens base, and a servo actuator is fixedly installed in the middle of the top end of the base. According to the utility model, the descending speed of the lens is accurately controlled through the cooperation of the servo motor and the ball screw, the bearing capacity is stronger, the lens can be ensured not to collide with the lens seat due to too fast descending in the self-centering process, the surface of the lens is prevented from being damaged and deformed, and the screw nut on the ball screw can be ensured to run along a straight line through the cooperation of the linear guide rail and the guide slide block; and the assembly precision and stability are improved.

The utility model discloses a two-channel servo steering engine driver capable of efficiently utilizing space, which relates to the technical field of driver space layout structures and comprises a power supply and communication board, a board-to-board connection pin header and a driving control board. The power supply is connected with the communication board and the driving control board through board-to-board connecting pin headers, and limiting holes meshed with the board-to-board connecting pin headers are formed in the power supply, the communication board and the driving control board. According to the utility model, the vertical space of the circuit board is utilized, circuit elements are distributed on a plurality of layers, the area of the circuit board is obviously reduced, the structural layout is compact, and each element on the circuit board can play a maximum role in a limited space, so that the design of a high-density servo steering engine driver is realized, and the design cost is reduced. And compared with a steering engine driver with the same function performance, the space utilization rate is greatly improved, and the structure is compact.

The invention discloses a rigid-elastic coupling flight simulation platform of a large flexible aircraft and a control method of the rigid-elastic coupling flight simulation platform. The rigid-elastic coupling flight simulation platform comprises an upper motion platform, a lower fixed base, six electric servo actuators forming a parallel structure, a control system and a main controller. The method is characterized in that hinge points of six actuators on a lower fixed base adopt a non-concyclic optimized layout, the distance between the hinge points in the pitching axis direction of the platform is remarkably increased, a base geometric configuration longer in the longitudinal direction is formed, then the platform is embedded into an advanced rigid-elastic coupling flight mechanical model, and the model is a three-dimensional model. According to the method, effective verification of key flight events which are difficult to accurately simulate by a traditional six-degree-of-freedom platform can be realized, such as wing flutter boundary exploration of a large-flexibility aircraft, structural load coupling analysis under large maneuver, flight control law performance evaluation under rigid-elastic coupling influence and the like. Physical motion of the simulation platform can accurately reproduce complex dynamic characteristics predicted by the model, so that credibility and engineering application value of flutter simulation results are greatly improved.

This invention discloses a multi-sensor continuous ultrasonic welding monitoring method based on reinforcement learning, comprising: synchronously acquiring multi-dimensional physical signals such as vibration, pressure, energy, and displacement during the welding process using a multi-sensor array; extracting calibration features of each signal and fusing them to form a high-dimensional state vector; constructing a deep reinforcement learning network model integrating two algorithm architectures, defining corresponding state and action spaces, and setting a reward function based on quality compliance, abnormal parameter states, and adjustment amplitude; within a single welding cycle, inputting the high-dimensional state vector into the model to generate optimal parameter adjustment action commands, and adjusting the ultrasonic generator output and pressure mechanism setpoints in real time through a servo actuator to form a complete closed-loop control process. This method, through the combination of multi-sensor fusion and reinforcement learning, achieves dynamic adaptive monitoring and precise parameter adjustment of the welding process, improving welding quality consistency and process stability.

The invention belongs to the technical field of hydraulic auxiliary supporting, and particularly discloses a posture control method and device for a posture adjusting platform comprising a servo actuator, and the method comprises the steps: calculating the expansion amount of the servo actuator in the posture adjusting platform based on the target posture of the posture adjusting platform; and stretching out and drawing back the servo actuator based on the stretching out and drawing back amount of the servo actuator, so that the posture adjusting platform reaches the target posture. According to the method, the attitude adjusting platform can realize efficient and complex motion operation without depending on artificial experience, and the control precision, efficiency and reliability of the attitude adjusting platform are improved.

This invention relates to the field of intelligent commerce technology, and more particularly to an electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control. The system includes: a control switch for receiving input commands from the driver, including commands to activate / deactivate cruise control, accelerate / decelerate, cancel, and resume cruise control; a central controller connected to both a vehicle speed sensor and the control switch, the central controller incorporating an adaptive fuzzy control algorithm to generate throttle control commands based on the deviation between the current vehicle speed and a set speed; a servo actuator electrically connected to the central controller; and a motor that receives commands from the central controller to drive a synchronous belt. This invention achieves automatic and precise throttle adjustment and stable cruise control in motor vehicles, solving the problems of driver fatigue and poor driving comfort caused by the need for continuous manual throttle control during long-distance driving.

The invention discloses a double-steel-wheel road roller integrated frame reliability bench test control method, which belongs to the technical field of double-steel-wheel road roller frame testing, and comprises the following steps: obtaining analogue simulation load data under a double-large vibration working condition based on analogue simulation calculation; inputting a set load spectrum program into a control system of the electro-hydraulic servo actuator so as to apply a cyclic load spectrum to the integrated frame; gradually lifting the cyclic load spectrum to a target load level, recording a dynamic strain time history, a displacement change and an acceleration response of a key measuring point in the endurance test process, and performing online damage monitoring to obtain a periodic damage detection record; and finally evaluating the fatigue damage, the durability limit and the structural reliability of the integrated frame by combining a fatigue damage accumulation theory. The method is good in universality and adaptability, can simulate the frame vibration load spectrum based on the cooperation of the front / rear double actuators and the single shaft, reproduces the vibration compaction working conditions of the front and rear double steel wheels of the road roller in the time domain, and achieves process prediction and optimization.

The invention relates to the technical field of concrete flexural-tensile tests, in particular to a fully-graded concrete flexural-tensile test device and a test method.The fully-graded concrete flexural-tensile test device comprises an electro-hydraulic servo actuator used for applying pressure to a test piece, and a workbench is arranged below the electro-hydraulic servo actuator; the workbench is provided with a supporting assembly used for placing a test piece and an adjusting assembly used for adjusting the central axis of the test piece and the central axis of the pressure applying end of the electro-hydraulic servo actuator to be located on the same central axis. The supporting assembly comprises first movable plates which are symmetrically arranged; the adjusting assembly comprises baffles which are symmetrically arranged, the two first movable plates are arranged between the two baffles, and the baffles and the first movable plates are in sliding connection with the top face of the workbench. The central axis of the test piece placed on the supporting assembly and the central axis of the pressure applying end of the electro-hydraulic servo actuator can be located on the same central axis through the adjusting assembly, the centering precision of the test piece is effectively improved, and the data accuracy and the test efficiency are effectively improved.

The embodiment of the specification discloses a robot head module and a desktop robot, wherein the robot head module comprises a head main body, a first servo actuator, a second servo actuator and a neck support; the head main body comprises a module for realizing NFC payment; the first servo actuator is fixedly connected with the head main body and is used for driving the head main body to rotate around a first axis to execute a payment confirmation action; the second servo actuator is fixedly connected with a robot body module; the first servo actuator and the second servo actuator are connected through the neck support; the second servo actuator is used for driving the neck support to rotate around a second axis; the second axis is an axis where an output shaft of the second servo actuator is located; and the first axis is perpendicular to the second axis.

The application relates to an intelligent fine pressure control device and method, and relates to the technical field of petroleum chemical industry, and is used for solving the problem of low pressure control precision in the mode of manually adjusting the valve. The intelligent fine pressure control device comprises a pressure control valve with an inlet and an outlet, a servo actuator connected with the pressure control valve, and a control module electrically connected with the servo actuator; wherein the control module can send a pressure control instruction to the servo actuator, and the servo actuator can drive the pressure control valve to act according to the pressure control instruction, so that the pressure at the outlet is equal to a preset pressure value. In the application, the control module is arranged, and the control module is used for sending the pressure control instruction to the servo actuator, so that the servo actuator can accurately drive the pressure control valve to act according to the pressure control instruction, so as to accurately adjust the pressure value at the outlet. Therefore, the adjusting precision of the intelligent fine pressure control device is improved. Furthermore, the precision control demand of automation and intelligentization of modern industry is met.

This application discloses an in-situ mechanical testing system and method for aero-engine turbine blade materials. The system includes: a multi-axis loading unit for simulating the multi-axis stress state of turbine blades under actual operating conditions; a high-temperature environment module for achieving localized rapid heating of the sample; an in-situ observation system integrating a long-working-distance high-temperature microscope and a high-speed camera for real-time observation and recording of the microscopic damage evolution of the turbine blade sample during high-temperature loading; and a control unit with a built-in temperature-stress decoupling control model and a microscopic defect identification model for real-time compensation of the thermal effects of plastic deformation and quantification of the damage factor D. This application achieves synchronous loading of centrifugal force through a three-axis servo actuator, accurately reproducing composite stress with small load errors, overcoming the limitation of traditional single-axis testing in simulating multi-source loads on blades. Simultaneously, this application reduces interference from plastic work-induced temperature rise, solving the technical problem of data distortion caused by temperature drift in high-temperature testing.

This invention discloses an anti-out-of-plane torsion force transmission system for assisting the loading of an MTS hydraulic servo actuator, comprising a lower end plate, a U-shaped support frame, eight bearings, six connecting plates, twelve adjustable screws, several nuts, two sliding devices, and several stiffening plates. This invention adjusts the spatial position of the rotatable round steel tubes in the eight bearings using the screws, thereby forming a rectangular channel capable of clamping MTS hydraulic servo actuators of different specifications. This restricts out-of-plane torsion without affecting the single-axis reciprocating loading of the MTS hydraulic servo actuator, effectively avoiding friction between the loading head and the anti-out-of-plane torsion force transmission system, and reducing experimental errors.

The application discloses a self-balancing device for dynamic debugging and loading of an actuator, which comprises a chassis, a power mechanism and a motion mechanism; the power mechanism and the motion mechanism are arranged on the chassis and are connected with each other at the same horizontal level; the power mechanism comprises a motion crossbeam, an upper roller assembly, a lower roller assembly and a long screw nut assembly; the long screw nut assembly is vertically inserted into the motion crossbeam and the chassis and extends out from the lower portion of the chassis; the top portion and the middle portion of the long screw nut assembly are connected with the motion crossbeam; the upper roller assembly is connected to the middle portion of the long screw nut assembly, and the lower roller assembly is connected to the bottom portion of the long screw nut assembly; the self-balancing device can be used for servo actuator and control system joint test, servo actuators with good dynamic performance are selected before test, and the parameter matching of the key dynamic loading channel is verified, so that important test means and guarantee are provided for the smooth performance of major structure strength test.

The invention discloses a dynamic trajectory prediction and intelligent visual servo system based on deep learning, and particularly relates to the technical field of intelligent control. The method comprises the following steps: collecting image data of a target motion state in real time, extracting dominant state information and recessive state information of a target, performing dynamic trajectory prediction, and generating time sequence characteristics of a target motion trend and probability information of a potential shielding state; performing prediction stability analysis on the time sequence characteristics of the target motion trend to generate optimized trajectory prediction data; carrying out hidden state effect analysis on the probability information of the potential shielding state, and generating real-time evaluation information of target shielding; fusing the trajectory prediction data and the real-time evaluation information, and outputting a target trajectory prediction result; and the visual servo execution mechanism is controlled based on the target trajectory prediction result, so that stable tracking and prediction control of the incomplete observable target are realized, and the practicability of the visual servo system in a complex dynamic environment is improved.

The invention relates to the technical field of non-electrical variable adjustment, and discloses a path adjustment method for an aircraft transfer platform in a multi-layer transfer scene, which comprises the following steps: acquiring the quality of a controlled object borne by a first positioning unit, mapping the fundamental frequency resonance amplitude of a system based on the quality of the controlled object, and setting a dynamic dead zone threshold value; translating the physical displacement deviation into a feature node coordinate in a parameterized spatial map, extracting an instantaneous geometric feature of a non-uniform rational B-spline curve and converting the instantaneous geometric feature into a driving compensation vector, monitoring a pose deviation generated by residual mechanical oscillation of the first positioning unit, and when the pose deviation exceeds a dynamic dead zone threshold value, determining that the first positioning unit is in a dynamic dead zone; according to the method, a static waiting time sequence is reconstructed into a dynamic accompanying compensation process, the restriction of mechanical oscillation on the operation rhythm is eliminated, and the material flow volume of a transfer system is increased.

In order to detect a workpiece (the presence or absence of the workpiece and the length of the workpiece) of a spindle without using torque variation of a servo actuator, a workpiece detection device (30) is provided with a push rod (22) which is disposed inside a back spindle (20) that grips the workpiece (W) and which can move so as to push the workpiece (W) and discharge the workpiece (W) to the outside, and a servo motor (28) which has a drive unit (28a) that moves the push rod (22) and an encoder (28b), and which detects the workpiece (the presence or absence of the workpiece and the length of the workpiece) on the back spindle (20). And a control unit (60) that controls the drive unit (28a) on the basis of the detection result of the encoder (28b). The control unit (60) moves the push rod (22) to a standby position, the encoder (28b) detects the movement of the workpiece (W) when the push rod (22) is moved, and the control unit (60) calculates the presence or absence of the workpiece (W) on the basis of the movement.

The application discloses an air suspension loading device and relates to the technical field of air suspensions, which comprises a bearing frame, a vertical loading assembly rotatably arranged on the top of the bearing frame, a power loading assembly arranged on any one side of the rotation axis of the vertical loading assembly, a piston rod arranged on the power loading assembly for axial extension and retraction, and two loading rods, each loading rod being symmetrically arranged on the two sides of the rotation axis of the vertical loading assembly and being rotatably connected with the vertical loading assembly, each loading rod being connected with a group of air suspensions, and each air suspension being fixed in the inner cavity of the bearing frame. The application solves the technical problem that the existing air suspension durability test loading device needs to be equipped with two sets of static pressure servo actuators to complete the suspension test, thereby reducing the suspension test cost and improving the detection efficiency.