大型相交圓管相貫線焊接坡口加工研究

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摘要：為了實(shí)現(xiàn)對大型相交管件相貫坡口復(fù)雜曲面結(jié)構(gòu)的加工，達(dá)到相貫線上任一點(diǎn)的焊接夾角都相等的要求，運(yùn)用解析幾何法分別對相貫線、坡口曲線及其展開線進(jìn)行數(shù)學(xué)建模，通過數(shù)控編程軟件將數(shù)學(xué)模型轉(zhuǎn)化為空間曲線，并以此構(gòu)建坡口曲面實(shí)體模型，完成數(shù)控加工編程、數(shù)控銑床對相貫線坡口曲面加工。

關(guān)鍵詞：相貫線；坡口曲面；模型；加工

Research on welding groove machining of  intersecting round tube intersecting line

Abstract： In order to fulfill the ability of machining capability of complex surface structure which was facing intersecting groove of large-scale intersecting pipes， to ensure that the included angle of welding at any point on the intersecting line was the same. Firstly， the mathematical models were built by using the method of analytic geometry for the intersecting line，groove curve and it's expansion line; secondly， the mathematical models were transformed into a space curve through the CNC programming software， and the groove surface model was built based on this; finally， the machining of intersecting groove surface was completed by using CNC machining programming and CNC milling machine.

Keywords： intersecting line; groove surface; method; processing

1 序言

目前，相交管件相貫線焊接坡口的加工大多采用人工打磨或相貫線切割機(jī)的方法。（剩余4795字）