Large spiral steel pipe quality detecting device and method

Abstract

The invention discloses a large spiral steel pipe quality detecting method, belongs to the field related to steel pipe quality detection, and aims at overcoming the possible quality problem when a steel pipe leaves the factory or is recovered. The method comprises that a detection platform which can bear and rotate the large spiral steel pipe as a detection object is designed; a manipulator is provided with a tail-end execution part with a visual unit and a detection probe to scan and detect the steel pipe, and transmits data to a data center of a background host module for processing; a weldseam detection unit with a visual probe tracks a weld seam to compensate the pose of the tail-end execution part of the manipulator; a probe capable of automatically identifying obstacle avoidance andmulti-lobe damage is designed for an obstacle in the surface of the steel pipe; and a method for detecting the coaxiality of the steel pipe is designed. The invention also discloses a corresponding large spiral steel pipe quality detecting device. Thus, multiple items of the large spiral steel pipe can be detected synchronously, the steel pipe quality detection time is shortened, the detection range is widened, the detection efficiency is improved, and thus, the method and device are especially suitable for occasions which need large spiral steel pipe quality detection.

Description

technical field [0001] The invention belongs to the field of steel pipe quality detection, and more specifically relates to a large-scale spiral steel pipe quality detection equipment and method. Background technique [0002] The following quality problems often exist in the recycling of large-scale spiral steel pipes: a large number of overlapping auxiliary steel materials; a large number of butt-welded spliced ​​steel pipes; foreign objects such as welding nodules, welding slag, and shells; corrosion leads to thinning of the wall thickness; obvious deformation caused by loading. During the detection process, these working conditions may cause damage to the probe, thereby causing misjudgment of the detection results of the steel pipe and affecting the efficiency and quality of the detection. [0003] At present, the equipment testing items for the quality testing of large-scale spiral steel pipes are single, and basically rely on semi-manual and semi-automatic equipment. Th...

AI Technical Summary

Problems solved by technology

[0002] The following quality problems often exist in the recycling of large-scale spiral steel pipes: a large number of overlapping auxiliary steel materials; a large number of butt-welded spliced ​​steel pipes; foreign objects such as welding lumps, welding slag, and shells; corrosion leads to thinning of the wall thickness; obvious deformation caused by loading

During the detection process, these working conditions may cause damage to the probe, which in turn may cause misjudgment of the detection results of the steel pipe, affecting the efficiency and quality of the detection

[0003] At present, the equipment testing items for the quality testing of large-scale spiral steel pipes are single, basically relying on semi-manual and semi-automatic equipment, which has low testing efficiency, insufficient accuracy, and often has the problem of missed testing.

In order to meet the inspection requirements, relevant units often need to configure physical inspection equipment such as online digital ultrasonic flaw detectors and X-ray real-time imagers. There are many inspection procedures, and the inconvenient loading and unloading of steel pipes greatly reduces the inspection efficiency.

Images