3 results about "Tailstock" patented technology

The invention provides an automatic control method of an air cylinder driven numerical control lathe tailstock capable of achieving rigid tapping. A connecting device with a saddle and the tailstock of a numerical control lathe combined and separated is adopted in the automatic control method and comprises a connecting column, a rotating arm assembly, a drive assembly and a screw tap assembly. A circular groove is formed in the middle portion of the connecting column. The shaft end of the connecting column and the side face of the tailstock are provided with a pair of sensors. The rotating arm assembly comprises a rotating arm, a rotating shaft, a shaft sleeve and a large gear. The shaft sleeve is fixed to the front side face of the numerical control lathe tailstock. The rotating shaft penetrates the shaft sleeve. The front end of the rotating shaft is fixedly connected with the rotating arm, and the other end of the rotating shaft is fixedly connected with the large gear. A hook part capable of being clamped in the circular groove is arranged at the front end of the rotating arm. The drive assembly comprises a gear rack, an air cylinder, an electromagnetic directional valve, a gear rack guide groove, a reset switch and a controller. The controller is mounted in a machine tool power distribution cabinet and electrically connected with a numerical control system and the electromagnetic directional valve. The reset switch is mounted on the front side of the saddle of the numerical control lathe and electrically connected with the controller.