Three methods of numerical control lathe spindle

the precision of the numerical control lathe spindle parts, rigidity and thermal deformation directly affect the machining quality. Because the numerical control lathe in machining process does not need manual control, the influence is more serious. The current numerical control lathe spindle mainly has three ways. Before the support by the double row short cylindrical roller bearing and 60 ° Angle touch of double row radial thrust ball bearing, bearing after equipped with radial thrust ball bearing in pairs. All stiffness of the spindle can be greatly improved, the structure can be satisfied the requirements of the chip, is widely used in small manufacturer of CNC lathe to make all kinds of CNC lathe. Front bearing using high precision double row angular touch ball bearing, bearing choose single row (after Or double row) Angle to touch the ball bearings. This configuration has a good function of high speed, but its bearing capacity is small, which is suitable for high speed, light load and fine numerical control lathe spindle. Before and after the double row and single row tapered bearings used in bearing. This constraint the recommend suite and precision of the spindle structure, suitable for the precision, low speed, heavy nc lathe spindle. Selects the step motor and MCU general lathe feed system formed by the transformation of the brief numerical control lathe the cost is low, but the degree of automation and function is poorer, turning accuracy is not high. Suitable for low requirements of rotating parts. According to the requirement of turning, the CNC lathe for special planning, and equipped with general CNC system. The numerical control system function strong, high degree of automation, high machining accuracy. Applicable to general inversion parts turning processing. CNC lathe can control together two axes, that is, the X axis and Z axis.

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