| 摘要 |
PURPOSE:To improve the working accuracy of the outside of a tube by a method wherein a thickness detector and a bend detector are traversed with a tool, the tool is moved forward and backward on a tubular body based on the measured results to obtain a constant machined thickness. CONSTITUTION:Runways 10, 12 are provided facing a tubular body 1 and a displacement meter (bend tester) 4 and a cutting tool 3 are provided on the runway 10 as well displacement meters (bend testers) 5, 6 and a thickness gage 7 are provided on the runway 12 and move freely in the arrow direction. Signals of the displacement meters 4-6 and the thicknesses gage 7 are inputted into a processing unit 14 and a tool position signal, a cutting start signal and a cutting end signal are outputted from a registration unit 13. Although there is a bend on the tubular body, the outside is cut from are end to the other by the thickness within the tolerance. |
