PIPE INNER SURFACE GRINDING DEVICE

To provide a pipe inner surface grinding device in which a lifting mechanism can be down-sized compared to the case that a grinding unit is lifted relative to a base.SOLUTION: A pipe inner surface grinding device (100) comprises: a support mechanism (1) which cantilevered on a base (4) which is so configured as to be relatively movable in an axial direction of a pipe (P1); a grinding unit (2) which is so provided on a free end side of the support mechanism (1) as to grind an inner surface of the pipe (P1); and a lifting mechanism (3) which relatively lifts the grinding unit (2) relatively to the support mechanism (1).SELECTED DRAWING: Figure 1 【課題】研削ユニットを、基台に対して相対的に昇降させる場合に比べて、昇降機構を小型化出来る管内面研削装置を提供する。【解決手段】管内面研削装置（１００）は、管（Ｐ１）の軸心方向に相対移動可能に構成された基台（４）に片持支持された支持機構（１）と、管（Ｐ１）の内面を研削するように、支持機構（１）の自由端側に設けられた研削ユニット（２）と、研削ユニット（２）を支持機構（１）に対して相対的に昇降させる昇降機構（３）と、を備える。【選択図】図１