Two-phase frequency consistency restoration apparatus for travelling-wave type rotation ultrasonic motor

Abstract

The invention relates to a two-phase frequency consistency restoration apparatus for a travelling-wave type rotation ultrasonic motor, and belongs to the technical field of an ultrasonic motor. The apparatus comprises: a detection module for detecting the two-phase working frequency of the ultrasonic motor on line; a laser perforator for punching the stator of the ultrasonic motor; a probe for detecting the largest vibration displacement position (peak) when the stator of the ultrasonic motor works; a rotation platform for realizing the rotation of the stator of the ultrasonic motor; and a control module for controlling the position of the probe and the rotation position of the rotation platform, receiving inspection module information and controlling the processing depth of the laser perforator. The apparatus provided by the invention realizes on-line real-time testing of the modal parameters of the stator of the ultrasonic motor, automatic determination of the micromachining position of the stator and the automatic adjustment of the micromachining amount.

Description

technical field [0001] The patent of the present invention relates to a repairing device for a rotary traveling wave ultrasonic motor, which belongs to the technical field of ultrasonic motors. Background technique [0002] With the large-scale production of rotary traveling wave ultrasonic motors, it is necessary to inspect the stators of the motors in production; repair the stators of ultrasonic motors with a large difference in frequency between the two phases. None of the existing equipment and technologies can realize the detection of the stator modal parameters of the rotary traveling wave ultrasonic motor and the repair of the two-phase frequency consistency. At the same time, there is no relevant literature related to the real-time detection of the working frequency of the ultrasonic motor and the repair of the two-phase frequency consistency. [0003] At present, impedance analyzer or Doppler laser vibration measurement system is mostly used to detect the working f...

AI Technical Summary

Problems solved by technology

Both of the above two devices cannot realize the online real-time detection of the two-phase frequency of the ultrasonic motor

Impedance analyzer can detect two-phase frequency, the test principle is as follows Figure 1A, but does not detect the peak position of the stator standing wave vibration of the ultrasonic motor, so it is impossible to determine the position of the micro-machining of the stator during repair

The Doppler laser vibration measurement system can test the peak position of the standing wave vibration of the stator of the ultrasonic motor. title="Figure 1B">Figure 1B; but the detection device is complex and cannot meet real-time detection

[0004] Zeng Jinsong et al Consistency adjustment of stator modal frequency of rotary traveling wave ultrasonic motor, Journal of Nanjing University of Aeronautics and Astronautics, 2006, 5 (38): 605-606, in which a manual printing method for two-phase frequency consistency adjustment is disclosed. Hole device, although the device can adjust the frequency consistency of the two phases of the stator, it cannot automatically identify the peak of the stator standing wave, and the self-adjustment effect is limited, and the machining allowance is automatically calculated

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