This machine is a universal lathe with loading capacity of 32 tons, after used roller support and steady rest, loading capacity to be 34tons. It is suitable for high-speed steel and hard alloy steel tools. For shaft parts of different materials, cylindrical and disc-shaped parts, turning outer ring, end face, slotting, cutting, The boring, the inner and outer cones of the rut, and the use of the upper tool holder (via the hanging wheel) for turning various threads of less than 600 mm in length.
The machine bed is integral box-shaped three rectangular rail structure, which is cast in one-time casting with high-grade cast iron (HT300). After two times of aging treatment, the stability is good; the width of the guide rail is 1600mm, the rigidity is good, and the anti-vibration capability is strong; Precision grinding by imported guide grinding machines ensures long life, high precision and good retention.
The main drive mechanism of the machine tool is driven by a 75KW DC motor. The total speed ratio of the variable speed control mode is 1:22.2, 3steps speed changing, and the mechanical and electrical speed ratio is 1:200. The spindle obtains a stepless speed regulation range of 0.8 to 160 r/min.
High rigidity and high precision spindle: The machine tool spindle bearing adopts domestic famous brand products. The spindle box adopts a symmetrical structure to make the thermal deformation uniform and avoid the offset of the center of the spindle. To reduce thermal deformation, the headstock is lubricated with an oil bath cycle. The gears in the headstock are quenched and grounded to ensure accurate transmission and low noise. The well-assembled spindle has the characteristics of low temperature rise, small thermal deformation and high precision, which makes the spindle maintain relatively stable accuracy during long-term operation.
The feed system is connected to the main drive through the light bar, so that the feed is directly related to the spindle speed, and the feed rate is convenient to select.
The tailstock quill is a rotatable structure, which reduces the wear and heat of the centers.
The machine tool standard equipped with electric moving tailstock, reduce operator labor intensity and improve work efficiency.
This series of machine tools supply two kinds of center frame, that is a closed center frame and an open center frame.
Two rows of high-precision imported racks are installed on front and behind the machine, the front racks drives the carriage feed to realize turning thread, and the rear row of racks drives the tailstock for motorized movement.
