Cutting machine

The embodiment of the utility model provides a guillotine shear. The guillotine shear comprises at least two cutting mechanisms, a plurality of power input components, a supporting device and a pulse power source. The cutting mechanisms are sequentially arranged at intervals, each cutting mechanism is provided with a cutting wheel set used for winding a cutting line to cut off a workpiece, the cutting line is sequentially wound on the cutting wheel sets of the cutting mechanisms, the power input components are sequentially arranged at intervals in the extending direction of the cutting line, and the power input components make contact with the cutting line. The supporting device extends in the arrangement direction of the cutting mechanisms and is used for supporting workpieces, the high-frequency pulse power source is provided with two electrodes, one electrode is electrically connected with the power input components, and the other electrode is used for being electrically connected with the workpieces. Acco