Machining positioning tool

The utility model discloses a machining positioning tool which comprises a bottom plate and a gear, an installation plate is arranged on the bottom plate, a positioning shaft is connected to the installation plate in a rotating mode, the machining positioning tool further comprises a fixing mechanism arranged on the positioning shaft and used for fixing the gear, and a limiting mechanism arranged on the installation plate and used for limiting the positioning shaft. The fixing mechanism comprises a fixing plate fixedly connected to the positioning shaft, and a plurality of fixing rods are arranged on the fixing plate. Through the arrangement of the fixing mechanism and under the action of the driving mechanism, the gear is fixed by the fixing rods, the gear is prevented from shaking in the drilling process, a drill bit is prevented from being broken in the gear, the rejection rate of products is reduced, meanwhile, the gear is equally divided through the annular array arrangement of the fixing rods, and the m