Carbon dioxide micro-abrasive cutting machine tool and machining method

The invention discloses a carbon dioxide micro-abrasive cutting machine tool and a machining method. The machine tool comprises a high-pressure jet system, a machining control module and a machine tool basic module. The high-pressure jet system comprises a high-pressure gas tank, an output pipeline, a pressure gauge, a flow meter, an electromagnetic valve, a flow valve, a valve, an abrasive jet mixing device and a nozzle assembly, and can generate stable carbon dioxide abrasive jet; the machining control module comprises a ball screw cantilever type two-axis sliding table and an electromagnetic control panel and is used for controlling the jet flow position and direction of a nozzle; the machine tool basic module comprises a machine frame, a workpiece fixing device and a worm and gear lifting device. The machine tool basic module provides installation positions for all parts of a machine tool and fixes the parts to be machined. Compared with the prior art, the machine tool has the advantages of simple structu