The invention relates to a
metal-
cutting machine tool for automatically
machining a steel reinforcement connection sleeve, which comprises a
machine frame, wherein a rotating table, a main spindle box and a hydraulic table are sequentially assembled at the upper part of the
machine frame; and a hydraulic
station and a cooling
station are installed at the lower part of the machine frame. In the invention, independent processes of performing drilling, tapping and turning performed respectively by a corresponding independent machine in the traditional method are integrated into an automatic and continuous process, and the process from sleeve blank input to finished sleeve output is realized completely through automatic
machining; therefore, work by multiple operators and multiple independent machines can be replaced, equipment, site and workers can be saved, work efficiency can be improved, and productive cost can be reduced; in the invention, the tubingless plate type integration oil cylinder technology is adopted, so that a large number of traditional externally-exposed oil tubes are saved, the structure is compact, the maintenance is convenient, an oil-way channel is short, and the oil current resistance and leakage are reduced; the
metal-
cutting machine provided by the invention is provided with a
hydraulic control screw
clutch and a rotary oil-cylinder friction plate
clutch to realize rigid tapping, so that the
axial force that a screw tap bears can be reduced, and the thread accuracy can be improved; in addition, a high-pressure gas and liquid atomizing cooling and
chip-blowing technology is adopted.