What is the spindle of a lathe?

[LeCamila]

The spindle of a lathe is the shaft that clamps the workpiece and drives it to rotate, or directly clamps the tool and drives it to rotate. Relevant information is as follows: 1. Introduction: The machine tool spindle refers to the shaft that drives the workpiece or tool to rotate in the machine tool. It is usually composed of a spindle, bearings, and transmission components (gears or pulleys) to form the spindle assembly. In the machine, it is mainly used to support transmission parts such as gears and pulleys, and to transmit motion and torque, such as the machine tool spindle. Some are used to clamp workpieces, such as mandrels. Except for machine tools whose main motion is linear motion, such as planers and broaching machines, most machine tools have spindle assemblies. 2. Determining factors: The motion accuracy and structural stiffness of the spindle assembly are important factors that determine the machining quality and cutting efficiency. The main indicators to measure the performance of the spindle assembly are rotational accuracy, stiffness, and speed adaptability.