The invention relates to an automated bar part
machining system and an automated bar part
machining method by a
numerical control lathe. The automated bar part
machining system comprises a chuck portion and a tool array portion, and is characterized in that the tool array portion comprises a tool rest capable of moving in the X-axis direction and the Y-axis direction, the tool rest is provided with a plurality of tool positions side by side, and a
manipulator is mounted at one end of the tool rest; the chuck portion is positioned on one side of the X-axis direction and comprises a power chuck for clamping a
bar stock. The automated bar part machining method includes the steps of (1), mounting and clamping the
bar stock on the power chuck, and clamping the
bar stock to pull the same by a certain distance by the
manipulator; (2), moving tools to required positions by the tool rest, enabling the power chuck to rotate and using the tools for
cutting the bar stock; (3), machining a next part or enabling a spindle to stop rotating, loosening the power chuck and enabling the
manipulator to feed. The automated bar part
machining system and the automated bar part machining method have the advantages that automated production of the
numerical control lathe is achieved truly, so that production efficiency is improved to a greater degree, and labor intensity of workers is reduced.