| 摘要 |
PURPOSE:To improve work efficiency of machining a pipe, by placing three sets of retaining members, having a pair of parallelly retaining rollers, along a peripheral surface of the pipe while rotating the pipe to be machined by a rotating disc cutter edge and a chamfering edge. CONSTITUTION:A pipe periphery movable mounting structure 1 is equipped with an upper retaining member 4, side part retaining members 15, 18 and a rotating disc-shaped cutting edge 41. Each retaining member is equipped with a pair of parallel rollers respectively, and a pipe machine, fixing the member 4 and manipulating the members 15, 18 by a threaded bar 20, rotates the peripheral surface of a pipe T by clamping it. The pipe machine, rotating the cutting edge 41 and an additionally provided concentric chamfering edge (not shown in the drawing), simultaneously performing cutting of the pipe and its chamfering. |
