| 摘要 |
The present invention relates to a complex processing machine for a welding base material and, more specifically, to a technology for a new concept performing a complex function of simply chamfering the inner and outer side edges of the welding base material (pipe and board). The present invention is characterized by having a pair of external diameter guide rollers installed and fixated to be separated, and an internal diameter guide roller installed between the external diameter guide rollers to be vertically moved to contact guide the internal and external diameters at the same time regardless of the thickness of the pipe; or to contact guide the upper and lower surfaces of the board at the same time. |
