Positioning clamp for cutting bearing ring

The utility model discloses a positioning fixture for cutting a bearing ring, which belongs to the technical field of bearing ring processing and comprises a base, a fixing plate is connected onto the base, a concave plate is rotatably connected outside the fixing plate, a first concave plate and a second concave plate are connected onto the concave plate, a first arc-shaped plate is slidably connected onto the first concave plate, and a second arc-shaped plate is slidably connected onto the second concave plate. A clamping plate is arranged on the first arc-shaped plate, a second arc-shaped plate is slidably connected into the second concave plate, a first threaded rod is connected into the first concave plate in a threaded mode, and a positioning rod is rotationally connected to the concave plate. According to the positioning clamp for cutting the bearing ring, the first arc-shaped plate, the first threaded rod, an anti-skid disc, a connecting rope and a clamping plate are arranged, and through cooperation