TOFD (time-of-flight diffraction) ultrasonic detection scanning rack

TLDR: In this article, the authors proposed a non-destructive TOFD (time-of-flight diffraction) detection scanning rack, which consists of a main scanning rack body, a probe component, a roller component, an encoder component, and a circular ring embedded on the main scan rack body.

Abstract: The utility model belongs to a nondestructive TOFD (time-of-flight diffraction) detection device and particularly relates to a TOFD (time-of-flight diffraction) ultrasonic detection scanning rack. The scanning rack comprises a main scanning rack body, a probe component, a roller component, an encoder component, a circular ring embedded on the main scanning rack body, and a straight rod arranged on the circular ring. One end surface of the circular ring is provided with a T-shaped groove I and angle scales. Connecting rods and the straight rod forming the main scanning rack body are respectively provided with two T-shaped grooves II of which openings are back to each other; and each T-shaped groove II is internally provided with a slider II which is provided with a threaded hole. The straight rod is provided with connecting holes in the direction perpendicular to the T-shaped grooves II; the center distance of the two connecting holes is equal to the central diameter of the T-shaped groove I in the circular ring; and the straight rod is connected with a slider I through a screw. The probe component, the roller component and the encoder component are connected with the sliders II through screws. The scanning rack is simple and reasonable in structure design and can be used for not only singly but also simultaneously carrying out parallel scanning and oblique scanning. Due to the adoption of a modularized structure in the scanning rack, spare parts can be conveniently disassembled and replaced.