Pipeline trimmer

The utility model discloses a pipeline trimmer, its advantage lies in will having effectively fast the large -scale stainless steel return bend restoration of flaw. A pipeline trimmer, includes the frame, be equipped with impacting oil cylinder in the frame, the one end that impacting oil cylinder kept away from the frame is equipped with the impact piece rather than fixed connection, lie in the ascending return bend installation device in impacting oil cylinder promotion side in the frame. Settle the return bend on return bend installation device, through bellied part on the impacting oil cylinder drive impact piece motion impact return bend inner wall, repair qualified state with the return bend. Owing to drive impact piece through impacting oil cylinder as power to apply the effort to the return bend, the effort that impacting oil cylinder can reach is bigger, can not consume a large amount of manpowers and time like the manual work is beaten. And mechanized repairing work controllability to compare the ma