Overview
A rotary indexing table is a precision positioning device used in manufacturing to rotate a workpiece to specific angular positions with high accuracy and repeatability. These tables are widely used in CNC machining centers, assembly lines, welding stations, and inspection systems where precise angular positioning is required. The indexing table converts continuous rotary motion into discrete angular steps, enabling multi-sided machining operations without manual repositioning. Modern rotary indexing tables achieve positioning accuracies within arc-seconds and can handle substantial workpiece loads while maintaining exceptional repeatability throughout millions of indexing cycles.
Types and Features
Rotary indexing tables come in several configurations to suit different applications. Cam-driven indexing tables use a precision ground cam and roller mechanism to achieve high-speed, high-accuracy indexing with zero backlash. Servo-driven indexing tables employ direct-drive or gear-driven servo motors for programmable angular positioning with unlimited index patterns. Geneva mechanism tables use a slotted wheel and driving pin for simple, cost-effective indexing at moderate speeds. Roller gear cam tables combine the benefits of cam and roller technology for smooth, high-torque positioning. Tables are available in horizontal, vertical, and tilting orientations with various table diameters ranging from small units under 100mm to large tables exceed
