2results about How to "Accurate flaw detection" patented technology

This utility model relates to the field of rail flaw detection technology, specifically to an intelligent flaw detection device for welded rails. It includes a robotic arm with a flaw detection component at its front end. The flaw detection component comprises an ultrasonic probe and a reciprocating oscillation component. The reciprocating oscillation component drives the ultrasonic probe to oscillate back and forth between a first oscillation position and a second oscillation position to switch the detection direction. It also includes a coupling component for delivering a coupling agent to the detection surface. This utility model optimizes the structure of the flaw detection device. The reciprocating oscillation structure of the ultrasonic probe can increase the detection area, thereby improving detection coverage. Driven by the robotic arm, the flaw detection component can be moved along the scanning path more automatically and intelligently, accurately completing the flaw detection of the rail, thus ensuring the efficiency and accuracy of the flaw detection results.

The utility model belongs to the technical field of hydraulic cylinder welding flaw detection, and particularly relates to a hydraulic cylinder barrel and cylinder bottom welding flaw detection device which comprises a base, a portal frame is fixedly connected to the top of the base, and an ultrasonic flaw detector and two chucks are arranged in the portal frame and used for conducting flaw detection on a weld joint. An adjusting and positioning mechanism is arranged between the portal frame and the ultrasonic flaw detector, a lower air cylinder is fixedly connected to the top of the base, and a containing groove is fixedly connected to an output shaft of the lower air cylinder. The hydraulic cylinder bottom centering and fixing device is reasonable in structural design, through the clamping, centering and fixing mechanism, the cylinder bottoms of the cylinder barrels can be centered, clamped and fixed, the situation that the flaw detection precision is affected due to deviation is avoided, the cylinder bottoms of the hydraulic cylinder barrels with different diameters can be fixed, the universality of the device is improved, and the detection accuracy is improved according to the diameters and the lengths of the cylinder bottoms. The height and the position of the ultrasonic flaw detector can be adjusted, so that the universality of the device is further improved.