Clamp for camshaft machining

The utility model discloses a clamp for machining a cam shaft. The clamp comprises a working platform; the clamping assembly is arranged on one side of the working platform and is provided with a three-jaw chuck for clamping one end of the cam shaft; the center positioning assembly is arranged on the other side of the working platform and provided with a center shaft inserted into a center hole in the end of the cam shaft, the center shaft is provided with a conical tip part, an inner groove is annularly formed in the conical tip part, a TPV rubber mat adheres to the inner groove, and the surface of the TPV rubber mat is 2 mm higher than the surface of the conical tip part. One end of the cam shaft is clamped through the three-jaw chuck of the clamping assembly, meanwhile, the center shaft of the center positioning assembly abuts against and compresses the center hole of the cam shaft, clamping is completed, stability is guaranteed, the TPV rubber mat is arranged on the surface of the center shaft, flexible a