High-speed And High-precision CNC Lathes

High speed and precision are the eternal goals of machine tool development. With the rapid development of science and technology, the speed of upgrading of mechanical and electrical products has accelerated, and the requirements for the precision and surface quality of parts processing are getting higher and higher. In order to meet the needs of this complex and changeable market, the current machine tools are developing in the direction of high-speed cutting, dry cutting and quasi-dry cutting, and the machining accuracy is constantly improving. On the other hand, the successful application of electric spindles and linear motors, ceramic ball bearings, high-precision large-lead hollow core internal cooling and ball nut strong cooling low-temperature high-speed ball screw pairs and linear guide pairs with ball retainers and other machine tool functional parts have also created conditions for the development of machine tools to high speed and precision.
CNC lathe adopts electric spindle, cancels the belt, pulley and gear and other links, greatly reduces the moment of inertia of the main drive, improves the dynamic response speed and working accuracy of the spindle, and completely solves the vibration and noise problems of the belt and pulley when the spindle runs at high speed. The electric spindle structure can make the spindle speed reach more than 10000r/min.
The linear motor has high driving speed, good acceleration and deceleration characteristics, superior response characteristics and following accuracy. Using linear motor as servo drive, eliminating the intermediate transmission link of ball screw, eliminating the transmission gap (including reverse clearance), small motion inertia, good system rigidity, and precise positioning at high speed, thereby greatly improving servo accuracy.
Linear rolling guide pair, due to its zero and very small rolling friction with zero all-way clearance, small wear, negligible heat, very good thermal stability, improve the positioning accuracy and repeated positioning accuracy of the whole process. Through the application of linear motor and linear rolling guide pair, the rapid moving speed of the machine tool can be increased from 10~20m/mim to 60~80m/min, and the maximum is up to 120m/min.