Cutting jig for shaft pin type workpieces

The cutting jig comprises a base, positioning plates are fixedly installed on the two sides of the top of the base in a welded mode, the two positioning plates are symmetrically distributed on the left side and the right side of the top of the base, a rotating shaft is movably installed on the inner sides of the positioning plates, a transverse rod is arranged above the rotating shaft, and the transverse rod is connected with the positioning plates. A sliding sleeve is fixedly installed at the top of the cross rod, a lifting air cylinder is fixedly installed at the bottom of the sliding sleeve, a cutting wheel is connected to the bottom of the lifting air cylinder, the outer side of the cutting wheel is sleeved with a blocking cover, a dust removal device is arranged on the inner side of the blocking cover, and two cooling devices are fixedly installed at the bottom of the inner side of the positioning plate. A control device is installed on the left side of the base, and a lifting plate is arranged on the in