rotary index table

A rotary index table is a mechanical or electromechanical device used to precisely position workpieces or tooling by rotating them to specific angles or positions. It enables accurate and repeatable angular displacement with motionless dwell periods for machining, assembly, inspection, or other operations. These tables can be manually operated or CNC controlled, commonly used in manufacturing industries to improve precision and efficiency for tasks like drilling, milling, tapping, or assembly of complex parts.

How Rotary Index Tables Work

  • They consist of a circular rotating plate that holds the workpiece, supported by a base.

  • The table rotates in set increments or angles controlled by an indexing mechanism.

  • A locking mechanism holds the table stable in place during operations.

  • They may be powered by motors or manual drives and often incorporate sensors and encoders for precise control.

  • CNC rotary index tables allow automated rotation with adjustable speed, angle, and dwell times.

Key Features

  • Allow multiple angular positions with precise indexing and repeatability.

  • Can be integrated into automated production lines.

  • Available with adjustable or multi-surface rotating tables.

  • Used in operations requiring fast, accurate repetitive positioning.

Types of Rotary Index Tables

  • Cam Indexers: Use internal cams for precise motion and are generally lower cost.
  • Servo Indexers: Use electric servo motors for greater flexibility and faster, more dynamic movements.

Applications

  • Manufacturing parts with multiple holes or features around a cylindrical part.

  • Assembly and inspection lines for precise positioning of components.

  • Automated machining centers to improve efficiency and accuracy.

  • Industries like aerospace, automotive, metalworking, and assembly.

In summary, a rotary index table is a precision positioning device that incrementally rotates and holds workpieces in exact angular positions to facilitate complex, multi-step machining or assembly tasks efficiently.

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