The difference between electric spindle and mechanical spindle

Difference:

Electric spindles are generally used on CNC machines, while mechanical spindles are used on general machine tools.

Reason: Low-cost lathes cannot use electric spindles because the cost is too high. High-end lathes require high spindle accuracy, and the electric spindle with high heat generation can easily cause thermal deformation, which then changes the height of the spindle box, so it is not suitable for use on high-precision lathes.

Explanation:

The electric spindle is a new technology that has emerged in the field of CNC machine tools in recent years and integrates the machine tool spindle and the spindle motor. The main transmission system of high-speed CNC machine tools eliminates pulley transmission and gear transmission. The machine tool spindle is directly driven by a built-in electric motor, thereby shortening the length of the machine tool's main transmission chain to zero and realizing "zero transmission" of the machine tool.

The mechanical spindle refers to the axis on the machine tool that drives the workpiece or tool to rotate. The main shaft component usually consists of a main shaft, bearings and transmission parts (gears or pulleys). In machines, they are mainly used to support transmission parts such as gears and pulleys, and transmit motion and torque, such as machine tool spindles; some are used to clamp workpieces, such as spindles.