Requirements For Spindle Components Of CNC Lathes

1.Stiffness
When the equipment is working, it generally adopts high-speed cutting, which requires the spindle components to have high rigidity, otherwise the spindle produces large elastic deformation under the action of external force and causes vibration, affecting the accuracy and surface roughness of the processed parts.
2.The rotation accuracy
The co-rotation accuracy of the spindle components of CNC machine tools mainly refers to the radial runout and axial runout measured by using a dial indicator when the workpiece, fixture or tool surface is installed at the front end of the spindle at no-load and low speed. Its level directly affects the geometric accuracy and surface quality of the parts to be machined.
3. Seismic resistance
The shock resistance of the spindle components of CNC machine tools is the ability of the spindle components to resist vibration and maintain balanced operation in CNC machining.
4. Strong thermal stability
The thermal stability of a spindle component mainly refers to the ability of the component to resist changes in shape and position due to heating. CNC machine tools will generate heat due to friction, oil stirring or other reasons when working, resulting in unbalanced temperature of spindle parts, so that the shape and position of spindle components deformation, which will affect the machining accuracy.
5. Reliable and accurate positioning.
The structure of the spindle components of CNC machine tools should ensure reliable radial positioning accuracy and axial positioning accuracy to ensure reliable workpiece or tool clamping, accurate positioning, and reduce the impact of clamping error and positioning error on processing quality.