Method and system for matching and combining heavy steel pipes

Abstract

Provided are a heavy steel pipe matching and assembling method and system. The method comprises the steps that 1, a steel pipe end contour is measures, 2, analog matching is conducted by means of the pipe end contour, an roundness correction is conducted on steel pipes not meeting the assembling requirement; 3, assembling is conducted on steel pipes meeting the requirement. The system comprises a conveying rack and an electric trolley, a column of V-shaped transport rollers are installed on the conveying rack, and the V-shaped transport rollers are rotatably connected with a transmission device; the electric trolley can move in the direction of the vertical axis of the conveying rack, at least two pairs of rolling wheels are installed on the electric trolley, at least one pair of the rolling wheels are connected with the rolling wheel transmission mechanism, the rolling wheels are connected with electric lead screw lifting mechanisms respectively, and each pair of the rolling wheels are connected with an electric spacing adjustment mechanism. A monitoring host comprises a contour measurement unit, an analog matching unit and an automatic assembling unit. The method and system have the advantages of being suitable for assembling of steel pipes within a large diameter range, high in efficiency and low in cost.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, relates to the positioning of cylindrical workpieces, and in particular to a method and system for matching and assembling heavy steel pipes. Background technique [0002] In the fields of large-scale land buildings, marine engineering structures, wind power generation, pipeline transportation, etc., large-diameter (406mm~3000mm) circular steel pipes are widely used due to their comprehensive mechanical properties. For the processing of this larger diameter and longer length circular steel pipe, the rolling-pairing process is generally used at present. After the steel plate is rolled into shape by equipment such as a pipe coiler, the longitudinal seam is welded, and then the multi-section steel pipe is lengthened by means of ring seam grouping and welding. In the steel pipe rolling process, it is necessary to control the ellipticity within a certain range to achieve better mechanical prop...

AI Technical Summary

Problems solved by technology

In the field of marine engineering, the steel structure of offshore platforms has higher requirements on the strength of each part, so the steel pipes have extremely strict requirements on ellipticity, straightness, and misalignment in the process of rolling and assembling. It also leads to the low efficiency of the current grouping and thus creates a construction bottleneck

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