The three-sided CNC boring lathe is composed of the main components such as the bed, the power head, the CNC slide, the gearbox, the cutterhead, the hydraulic tooling, etc., and the transmission system adopts the backlash-free screw to ensure the accuracy of the workpiece, and is suitable for the processing of the three surfaces that require parallelism and perpendicularity such as various valves, pipe fittings, fire hydrants, etc., and the machine tool can complete the processing of three outer circles, planes or holes at the same time with the mode of working at the same time with three power heads at the same time. The company introduced the equipment half a year ago, for the size of DN80, DN100 of the valve body surface processing, easy to operate, only need to lift the valve body blank to the fixture, automatic positioning, no need to adjust, manual start of the hydraulic system can be automatically clamped, can complete the valve body flange surface of the outer circle, end face, waterline processing, three power heads at the same time, to achieve a card processing of three surfaces, a single processing waterline surface time does not exceed 60 seconds. The machine is all controlled by numerical control system, and the workpiece of the same model can be repeatedly processed with only one tool setting, so as to improve the uniformity of dimensions. One special machine is equivalent to the efficiency of three ordinary equipment, one person can operate 2-3 special machines, reduce labor and reduce costs, realize the automation and mass production of valve body, and improve the company's production efficiency while ensuring quality.