All-purpose tester of actuator

Abstract

The invention discloses an all-purpose tester of an actuator, which includes a housing, wherein a torque measuring module, a current collecting module, a voltage collecting module, a computer and an actuator control module are arranged in the housing; the torque measuring module is connected with the computer; the input end of the torque measuring module is connected with a loading module for providing the required load; the output end of the torque measuring module is directly connected with the actuator through a load shaft; an angle measuring module is fixed on the load shaft of the torque measuring module and synchronously rotates with the load shaft and the actuator; the current collecting module is connected with the actuator control module and the computer; and the voltage collecting module is connected with the actuator control module and the computer. The all-purpose tester of the actuator integrates the current measuring, the angle measuring, the rotating speed measuring, the feedback voltage measuring, the linearity measuring and other measuring funtions, adopts the computer to automatically collect the calculation data for further judgment, and achieves the purpose of quickly and correctly optimizing the measuring process.

Description

technical field [0001] The invention belongs to an actuator comprehensive detection system, in particular to a computer-based automatic actuator comprehensive test that integrates functions such as current measurement, angle measurement, rotational speed measurement, feedback voltage measurement, linearity measurement, and load loading. instrument. Background technique [0002] The inspection and measurement of actuator products usually includes current measurement, angle measurement, speed measurement, feedback voltage measurement, linearity measurement, etc. under a certain load. At present, the existing technology is generally divided into several stations for separate detection to determine Whether it is qualified or not, the efficiency is not high and the process of judging is affected by subjective factors. The specific detection methods of each step are as follows: [0003] At present, the measurement of the actuator current usually adopts the method of reading the...

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Problems solved by technology

[0007] At present, the linearity measurement of some actuators adopts the method of point calculation. Through the above method, several angles and feedback voltage values ​​are obtained, and then the linearity is obtained through calculation. This method is slow in speed and for To ensure the accuracy of linearity, when the number of points increases, the workload will be greater, resulting in low efficiency; some companies have selected the linearity automatic measurement system of the potentiometer, which can directly collect the data of the feedback voltage and operating time The linearity is calculated by the computer. Since the linearity automatic measurement system of the potentiometer is specially designed and produced for the potentiometer, the stepper motor drives the potentiometer to rotate during the measurement process. By taking the data of time and corresponding feedback voltage, The linearity is calculated by the computer, but when this set of equipment is used in the linearity measurement of the actuator, there is a disadvantage: the stepping motor can be guaranteed to move at a constant speed under the setting, but the existing actuators generally use DC motors , its speed will be affected by voltage and load, especially at the moment of starting and ending, the speed changes greatly, so using time and corresponding feedback voltage to calculate cannot guarantee its absolute accuracy

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