One-way valve for automatic hydraulic machine tool

The utility model relates to the technical field of valves, in particular to a one-way valve for an automatic hydraulic machine tool, which improves the adjustment convenience of a device, increases the working stability of the device and reduces the use limitation. Comprising a connector, a valve body, a piston cylinder, a piston sliding block, a first spring, a connecting shaft and a valve element, external threads are arranged on the outer wall of the right side of the connector, internal threads are arranged at the left end of a cavity of the valve body, and the external threads of the connector are in threaded connection with the internal threads of the valve body in a matched mode; the left end of the first spring is connected with the right end of the piston sliding block in a matched mode, the right end of the first spring is connected with the right wall of the working cavity of the piston barrel, a through hole is formed in the left end of the piston barrel, and the right end of the connecting shaft