Cutting machine

The cut-off machine comprises a machine frame, and a positioning jig, a cut-off mechanism, a trimming mechanism, a gold net cutting mechanism and a dead head transferring mechanism are arranged on the machine frame. A positioning area A used for containing a workpiece riser is arranged in the middle of the upper side of the positioning jig, and positioning areas B used for supporting a casting are arranged on the left side and the right side of the positioning area A correspondingly. The cutting-off mechanism is arranged on the rear side of the cutting-off station of the positioning jig and comprises two vertical saw blades which are arranged in parallel left and right at an interval; the trimming mechanism is used for conducting trimming operation on the cut casting and comprises two trimming machines arranged on the left side and the right side of the initial station of the positioning jig correspondingly. The die has the advantages that a one-die double-cavity workpiece is placed on the positioning jig and