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Index Rotary Tables: Top Uses For These Machine Tool Accessories November 1 Cheap Wayne Gretzky Jersey , 2015 | Author: Aisha Jacaruso | Posted in Business
Rotary Index Tables (RITs) are special tools used for the accurate positioning and movement of workpieces during the milling process. Their applications scope is wide, but their working principle is focused around calculation of vertical intervals.

The mechanism that allows this configurable accurate rotation is based on the movement of a worm-screw that is placed under the index table and can be turned by hand. Fixed axles that are positioned in intervals under the rotary table as driven from the worm-screw movement transforming it to rotational kinetic energy. A ratio between the the worm-screw and those axles is the factor that determines the maximum indexing resolution of the table.

Unique Milling Techniques

There is a very wide scope of possible uses for rotary index tables Cheap Pierre Turgeon Jersey , and their various settings and configurations can deliver unique milling techniques that are only limited by the machinist’s imagination. One of the most notable uses for the rotary index tables is as an alternative to an actual lathe machine. This can be done by using a chuck to hold the object, a tailstock to set the center of the milling process and an electric motor installed on the table’s worm-screw.

Many also workshops use RITs for the milling of bolt head indented features of various shapes (octagonal Cheap Chris Pronger Jersey , hexagonal etc). Operators calculate the intervals that are needed for the processing of these features and set the table accordingly.

Cutting & Drilling Uses

Rotary Index Tables are also used for cutting arcs of high precision and variable curvature. Through the addition of a compound table, the machinist can freely change the position of the center of processing Cheap Pavol Demitra Jersey , thus creating a gradually opening or closing arc.

RITs can also be used as supportive equipment in the cases of underpowered drillers that are used for the opening of large diameter holes at once. Rotary Index Tables can help such a driller to open multiple smaller holes that will constitute the large one. The end result is has the same level of precision with an one-time drilling.

Maybe the most demanding cutting process that index tables can help with is the realization of helixes. These three dimensional shapes are especially demanding as they require movement along at least three axis which is almost never possible by lathes alone. RITs come as a supplementary solution to this process, moving the workpiece rotational (two axis) while the cutting tool moves along the third axis thus creating the helix.

Maybe the most common use of the rotary index tables though is the drilling of equidistant holes on a circular flange. Using the tool for this purpose is an easy and straight forward activity that is only requires the calculation of the intervals based on the number of holes and their center to center distance. By re-positioning the flange in off-centric holes Cheap Martin Brodeur Jersey , one can further drill each hole into a larger one.

Get help finding the right index rotary table for your needs. Contact CNC Indexing today for help with CNC machine accessories.

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