Limiting device for steel pipe surface detection and limiting method thereof

Abstract

The invention discloses a limiting device for steel pipe surface detection. The limiting device is arranged in front or and the rear part of a seamless steel pipe surface detection system, and is connected with a field production information system. The limiting device comprises a side baffle, a rotating shaft center, an adjusting mechanism and a spring, wherein the side baffle is arranged above the steel pipe and is used for restraining and limiting the steel pipe, the center of the rotating shaft is connected to the front end of the upper surface of the side baffle, the side baffle can rotate around the center of the rotating shaft, the lower end of the spring is connected to the rear end of the upper surface of the side baffle, the upper end of the spring is connected with the adjustingmechanism, and the position of the side baffle is adjusted through the adjusting mechanism, so that a gap between the side baffle and the steel pipe is adjusted. According to the limiting device, thedetection system can be effectively matched with the limiting device to perform visual imaging on the surface of the steel pipe according to the requirement of the detection system on the surface ofthe seamless steel pipe.

Description

technical field [0001] The invention relates to the detection technology of hot-rolled seamless steel pipes, and more specifically relates to a limit device and a limit method for detecting the surface of steel pipes. Background technique [0002] In the field of surface inspection of pipes, rods and wire rods, inspection systems based on machine vision have been applied successively this year. In the field of surface inspection of hot-rolled seamless steel pipes, surface quality inspections have always been carried out in the cooling bed area, and the methods adopted are also Traditional detection methods such as manual sampling and manual visual inspection, in order to realize real-time online detection of hot steel pipes, the detection system based on machine vision is also used to detect the surface of hot-rolled seamless steel pipes. The motion stability of the object has high requirements. If the measured object jumps too much during the detection, the imaging image wi...

AI Technical Summary

Problems solved by technology

However, for small-diameter steel pipes of φ21.3mm-φ60mm, due to the large radial constraint space during the movement process, the steel pipe moves at a fast speed and has a large jumping range, which causes the surface image of the steel pipe to be out of focus during imaging, and the detection of the surface quality of the steel pipe cannot be effectively realized.

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