Flange centering device

The utility model relates to a flange centering device, including cylindricality nut (2), with cylindricality nut (2) matched with accommodate the lead screw (1), crank arm (4) with cylindricality nut (2) rigid connection's L type, locate the L type and crank arm support (5) on (4) galianconism, shop bolt (3) of rigid fastening on support (5), wherein the plane of support (5) is parallel with accommodate the lead screw (1) axis, and the axis of shop bolt (3) is perpendicular with the plane of support (5). The quantity of fixed pin (3) be two. The beneficial effect of the utility model: special use under the condition of nonparallel, disalignment, decentraction in a big way in when the maintenance repair to equipment pipe line method orchid, can guarantee the accurate centering of flange, realize rapid Assembly, practice thrift the manpower, save time, improve production efficiency, simple structure, small, simple operation, easily adjust, restricted by space and operating personnel, convenient to popularize a