What is the primary function of a rotary table in CNC machining?

The primary function of a rotary table in CNC machining is to allow for drilling and milling at various angles. Rotary tables are utilized in CNC machining to increase the versatility and functionality of the machining process. By enabling the workpiece to rotate, they facilitate operations that require angular adjustments, which are essential for creating complex parts with features that are not aligned to the primary axes of the machine.

Having a rotary table allows for multi-sided machining without the need for manual repositioning of the workpiece. This enhances productivity and accuracy, making it possible to achieve intricate geometries in a single clamping.

The other choices focus on different aspects of machining operations. Holding cutting tools securely is indeed a critical factor, but that task is typically managed by tool holders or fixtures rather than a rotary table. Managing coolant flow is essential for cooling and lubrication during machining processes but is unrelated to the primary function of a rotary table. Providing power to the machine is a general requirement for CNC machines but does not pertain specifically to the function of a rotary table.