Drilling and positioning tool for anti-rotating arm of speed reducer

The utility model discloses a drilling and positioning tool for an anti-rotating arm of a speed reducer, which comprises a bottom plate, a positioning block is arranged on the side edge of the bottom plate, a drilling module is arranged on the periphery of the bottom plate, and a pressing plate and a fixing bolt are arranged at the upper part of the positioning block. The number of the drilling modules is one, the drilling modules are arranged on the periphery of the bottom plate through locking bolts respectively, the drilling modules are each of a 7-shaped structure, and through holes are formed in the upper portions of the drilling modules. On the premise of ensuring the precision of the hole site of the workpiece, the structure is simplified, the operation is convenient and fast, the production efficiency is improved, common use of machining of the same workpiece (part) can be realized by replacing the drilling module and the positioning block with other specifications, the universality of the tool is imp