Synchronous pulley machining fixing disc

The utility model discloses a synchronous pulley machining fixing disc, which belongs to the technical field of synchronous pulley machining and comprises a main body and a first groove, the first groove is formed in one side of one end of the main body, a sliding seat is movably connected in the first groove, and a fixing seat is fixedly connected to the other side of one end, close to the sliding seat, of the main body. A transmission device is movably connected to the inner side of the fixed seat, the sliding seat is movably connected into the groove through an adjusting device, a rotating device is movably connected to the inner side of the sliding seat, the transmission device and the rotating device are connected through a connecting shaft, and a synchronous pulley blank is detachably connected to the connecting shaft. Compared with the prior art, the device has the advantages that the device is simple in structure and convenient to use, the synchronous pulley blank body is driven by the driving device