Immersion type automatic ultrasonic testing apparatus for detecting flaws of balls

摘要

An immersion type automatic ultrasonic testing apparatus for detecting flaws of balls comprising a tank (23) for containing a liquid medium of transmitting ultrasonic wave, a ball rotating device (11) for rotating a ball (10) to be tested, an ultrasonic flaws detection device (16) for detecting surface flaws in the ball (10) while swivelling a probe (15) around the ball (10) rotated by the ball rotating device (11) or rotating the ball (10) spirally by the ball rotating device (11) with or without swiveling the probe (15), and a ball feeding device (3) for feeding the ball (10) to the position of the ball rotating device (11). The ball feeding device (3) comprises an air cylinder (9) for holding the ball (10) by suction at the tip thereof. For the suction holding of the ball (10) at the tip of the air cylinder (9), a level regulating device (33) is additionally provided for setting a level of the liquid medium of transmitting ultrasonic wave in the tank (23) wherein the ball rotating device (11) and the probe (15) are placed.