Method for measuring steel rail appearance geometric dimension and surface quality and device thereof

Abstract

The invention relates to a method for measuring steel rail appearance geometric dimension and surface quality and a device thereof. Three sets of laser devices, a total of eight two-dimensional laser sensors, are adopted to acquire steel rail cross section contour data, data fusion is performed by computer software, all cross sections are spliced and the three-dimensional contour of a steel rail is acquired. Each cross section contour of the steel rail is automatically analyzed, the appearance geometric dimension of the steel rail is detected, steel rail surface quality is detected and detection results are uploaded to a welded rail production and management system so that automatic rail distribution and steel rail information recording can be realized. The detection results are displayed in real time, and three-dimensional contour pictures of surface quality with defects are recorded. The detection results are displayed in real time, and real-time sound-light alarm is performed when the detection results exceed standard values. The steel rail appearance geometric dimension and surface quality can be effectively detected by the method so that utilization rate of the steel rail can be greatly enhanced and safety hidden trouble in subsequent use can be reduced.

Description

technical field [0001] The invention relates to a method and a device for measuring the appearance geometric dimensions and surface quality of rails, belonging to the technical field of rail detection. Background technique [0002] At present, high-speed railways have adopted the track laying form of seamless rails. The straightness of the weld joints of seamless rails will directly affect the straightness of the rails. During the track laying operation, the straightness of the weld position of the rail On the one hand, unqualified rails increase the difficulty and cycle of fine adjustment of the rails, and on the other hand, it is difficult to ensure the long-term stability of the rails. Therefore, the straightness of the welded part of the seamless rail is an important factor to ensure the overall straightness of the seamless line. In the welding operation of seamless rails, the appearance and geometric dimensions of the rails, especially the rail top width, rail bottom w...

AI Technical Summary

Problems solved by technology

[0004] 2) Straightness and twist of the rail ends: the top flatness, side straightness or twist of the two rail ends welded together directly affects the straightness and twist of the welded rails, which It will increase the workload of grinding after welding, and at the same time put forward higher requirements for the straightening process after welding, increase the straightening cycle, and will also reduce the quality of the finished rail

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