Ball screw actuation systems are key equipment in the field of precision transmission, consisting of ball screw shafts, balls, circulation components, nuts, and support units.
They are widely used in CNC machine tools, aerospace equipment, precision automation machinery, and other scenarios. Its working principle is that when the motor drives the screw shaft to rotate, the ball inside the nut rolls along the screw raceway, converting the rotational motion into linear motion of the nut. The circulation component allows the ball to continue circulating, avoiding detachment and reducing friction.
The system has significant advantages, with extremely high positioning accuracy, reaching micrometer or even sub micrometer levels, meeting the requirements of precision control; High transmission efficiency (90% -95%), far higher than sliding screws, and lower energy consumption; Low wear and tear, slow degradation of accuracy over long-term use, and long lifespan. Common applications include CNC machine feed systems, semiconductor wafer handling mechanisms, precision testing instruments, etc.
However, it has high requirements for the working environment and is susceptible to dust and impurities, requiring protective structures; And the manufacturing cost is relatively high, so when selecting, it is necessary to reasonably choose parameters such as load, stroke, and accuracy requirements.
