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在165直缝焊管机组上,为了把经连续辊对式成型和高频焊接出来的钢管,在运行中切成定尺长度,我厂曾先后采用过人工划线氧-乙炔切割、定尺限位开关控制的双刀旋风自动切管机、光电控制的飞锯机等。上述方法,不仅劳动强度大,消耗多,而突出的问题是不易将具有较高焊接速度(可达50米/分)的钢管在瞬间切断,因此,限制了机组效率的发挥。同时,由于定尺限位开关动作误差大,光电管易受邻近高频发生器的干扰,均不能适应焊速的变化,由于焊
165 straight seam welded pipe unit, in order to be formed by continuous roller-type and high-frequency welded steel pipe, cut into length in the operation of the length, I have used the factory crossed scribe oxygen - acetylene cutting, length limit Bit switch control double pole cyclone automatic pipe cutting machine, photoelectric controlled flying saw machine and so on. The above method is not only labor intensive and consumes a lot, but the outstanding problem is that the steel pipe with higher welding speed (up to 50 m / min) can not be instantly cut off, thus limiting the efficiency of the unit. At the same time, due to the length limit switch error, photoelectric tube susceptible to the interference of adjacent high-frequency generator, can not adapt to changes in welding speed, the welding