Production control method and device for checking the traversability of pipes

摘要

A device for checkivng steel pipes during production and to a method using the device. The device includes a station for acquiring measurement data representative of physical measurements of the geometry of a pipe taken on an outside thereof, and a computer system configured to store template data applicable in a coordinate system and representative of overall geometry of a sizing body. In a chosen coordinate system, the system then provides a three-dimensional representation of parts of the pipe. For each part of the pipe, the system is referenced to determine a critical parameter, representative of the margin of passage of the sizing body inside a chosen part of the pipe. The method and device may thus establish a diagnostic of traversability of the pipe by a sizing body.

主权项

1. A method aiding production control of steel pipes, comprising:
a) acquiring measuring data representative of physical measurements of a geometry of a steel pipe taken on an outside thereof; b) from the measurement data, generating converted measurement data to form a three-dimensional representation, by pixels, of an inner wall of the pipe, over a longitudinal area of the pipe, the three-dimensional representation being related to a chosen system of coordinates having a point of origin and an axis that are marked relative to the pipe; c) preparing template data representative of an overall geometry of a sizing body, the template data being applicable in the chosen system of coordinates; d) considering a first section of the pipe for which converted measurement data are available, and determining from the converted measurement data and template data a critical value representative of a margin of passage of a sizing body inside the first section of the pipe; e) selectively repeating the considering d) for other pipe sections offset relative to each other by an overlap; and f) establishing a diagnostic of traversability of the longitudinal area of the pipe by the sizing body from critical values obtained in the considering d) and the selectively repeating e), and relative positions of the sections of successive pipes.