一種外加厚油管螺紋修復(fù)方法

A Method for Repairing Threads of Externally-upset Tubing

摘要: 分析了螺紋修復(fù)的原則及難點(diǎn)，介紹了CCD攝像機(jī)、光電編碼器、FAGOR系統(tǒng)修復(fù)、定位板與CCD攝像機(jī)同步的常規(guī)螺紋修復(fù)方法，提出了一種數(shù)控車床修復(fù)加厚油管螺紋方法。數(shù)控車床修復(fù)方法可在保證加厚部位最小尺寸的前提下，在原有螺紋包絡(luò)線上對螺紋進(jìn)行修復(fù)，從而減少切頭損失，提高經(jīng)濟(jì)效益；與常規(guī)修復(fù)方法相比，具有操作簡單、無投入、可批量操作的特點(diǎn)。

Abstract: The principle for and the difficulties encountered with thread repairing are analyzed.A lso described are the CCD camera，the photoelectric encoder，repairing of the FAGOR system，and the conventional thread repair method as involving synchronization between the positioning plate and the CCD camera.A method for repairing the upset tubing thread with the CNC lathe is proposed.The CNC lathe-adopting method for thread repair can make it possible to ensure that under the precondition that theminimum dimensions of the tubing’s upset part is guaranteed，the thread is repaired on the original thread enveloping line so as the cropping loss is reduced，thus the economic benefit increased.Compared with the conventional thread repairmethod，the abovementioned method features such advantages as easy operation，zero investment，and in-lot repair operation.