Center positioning device

The utility model relates to the technical field of optical fiber communication, and discloses a center positioning device. The center positioning device comprises an oil filling supporting frame, an oil receiving groove, a bent plate and a position adjusting assembly, wherein the oil filling supporting frame is used for assembling an oil filling mold; the oil receiving tank is positioned below the oil filling support frame; the bent plate extends from the upper portion of the oil receiving groove to the lower portion of the oil receiving groove. The oil filling supporting frame is fixed to the top of the bent plate. The bottom of the bent plate is fixed to the position adjusting assembly, and the position adjusting assembly can adjust the vertical height and the horizontal position of the bent plate. According to the center positioning device, the bent plate extends to the position below the oil receiving groove from the position above the oil receiving groove, the oil filling supporting frame is fixed to th