1results about How to "Eliminate bending" patented technology

The utility model discloses a kind of metal pipeline inner surface polishing grinding device, it is related to pipeline polishing and polishing technical field, and it includes: pedestal, polishing structure, drive assembly and push structure, pedestal includes U-shaped base, and track block is fixedly installed on the upper surface of U-shaped base, polishing structure includes polishing platform, track groove being opened in the lower surface of polishing platform, respectively opening in the upper surface of polishing platform Bar-shaped through slot and guide groove, and polishing assembly and pipeline fixing assembly are set on the upper surface of polishing platform, the surface of track block and the inner wall of track groove sliding fit, polishing assembly includes two mountings of sliding installation in the inner wall of guide groove, and polishing part is set on the surface of mounting. Compared with prior art, the utility model has the beneficial effects that: the symmetrical polishing rod synchronous advance and retreat structure driven by bidirectional threaded column can shorten the length of single polishing rod, eliminate the risk of rod body bending and reducing resonance caused by single force application.