The TOGGLE-AIRE® Model 1011 RT Rotary Indexing Machine couples the reliability and accuracy of our toggle action presses with a multi-station pneumatic indexer to form a fully pneumatic rotary assembly machine.
The TOGGLE-AIRE® Model 2000 is an extremely compact rotary indexing machine, requiring no more bench space than our 3 Ton press. It features solid, one-piece construction, with the indexing unit built into the cast iron mainframe of the press.
Wafer dicing during semiconductor integrated circuits (IC) fabrication is the process of separating the individual ICs from the die through slicing. IC manufacturing uses a rotary indexing table to achieve the precision positioning and accurate stepping of the die for slicing. Generally speaking, indexers are useful for any manufacturing process that requires repeating operations at multiple spots on a workpiece.
What Is a Rotary Indexing Table?
Tooling work in manufacturing operations—like die slicing for IC fabrication—often requires repeated rotational repositioning of the part being worked on. This repositioning operation is called rotary indexing and conducted by a machine called a rotary indexing table or rotary indexer.
The rotary indexer mainly performs two tasks:
Due to the precise positioning required for operations like wafer dicing in IC manufacturing, rotary indexers themselves need to be extremely precise machines. Consequently, they have sophisticated designs involving electrical motors and motion transmitters controlled by well-calibrated servomechanisms or cams. The assembly also includes rotational position sensors and encoders that assist with achieving precise positions.
In addition to manufacturing operations, rotary indexing tables are also used for inspection and quality control of finished parts. They are also helpful in assembly operations that require parts to be moved through a series of workstations. Commercial operations like packaging, bottling, and machining frequently rely on rotary indexers.
Rotary indexers fall into two design categories: servo rotary tables and cam indexing devices.
Servo rotary tables are used for applications that require:
Short settling times
Long pauses between angular movements
The servo mechanism relies on encoders that provide fast electronic feedback to achieve quick and accurate positioning.
Cam indexing devices use mechanical cams instead of servomechanisms to position the rotary table. The sensor packaging for cam indexers consists of inexpensive camshaft sensors. Cam indexers are cheaper than servo indexers because of the low cost of the sensors used in them. Cam rotary indexing tables are suitable for applications that possess equidistant angular positions.
Rotary tables are usually mounted horizontally but vertical mounting is also possible if the application requires it. The mounting of the table depends on many factors, especially the axial, moment, radial, and torque loads necessary for the application.
AIM Joraco is an industry leading supplier of rotary indexers. We manufacture standalone and benchtop rotary indexers:
For more information about our rotary indexers or other equipment and services, please contact us.