The invention provides an automatic ultrasonic
phased array scanning device used for a large-size curved-surface component. The automatic ultrasonic
phased array scanning device comprises a driving component, a steering component and a processor
assembly of a control part, a sensor and an
energy converter component of a detection part, and a power supply, a
coupling agent
storage tank, a low-pressure pump, a main case, a roller
brush component and a base plate of an auxiliary part, wherein the steering component is provided with a distance sensor and a
pressure sensor; and the
energy converter component is provided with an automatic height and curvature adjusting device. Automatic scanning and stoppage of the device in a direction shaped like a Chinese character 'gong' can be realized by controlling the driving component and the steering component with a sensor
feedback control function. The posture of an ultrasonic
phased array energy converter is automatically adjusted by the energy converter component so that the ultrasonic phased array energy converter can be coupled with the surface of the component; and online detection or
offline analysis of an ultrasonic phased array can be realized by the processor
assembly. The automatic ultrasonic phased array scanning device used for the large-size curved-surface component can be used for automatic ultrasonic phased array detection of important components of industries including
aviation and
aerospace,
wind power and the like, is particularly suitable for horizontally-arranged small-curvature large-size components, and has the advantages of strong adaptability, high detection efficiency and the like.