Indexing Drives

Indexing Drives are mechanical systems designed to move components to specific, repeatable positions (indexes) in a controlled sequence. Indexing Drives are essential in automation for tasks requiring precise positioning, such as in assembly lines, packaging, or machining.

It utilizes a globoidal cam mounted on the input shaft, which remains in constant contact with needle roller bearings (cam followers) secured to the output turret. The “DF” designation signifies a flange-type output, providing a flat, robust mounting surface for high-torque applications. Cam Indexing Drives are a specialized type of indexing drives that use a cam mechanism (rotating disc or cylinder with a shaped profile) to control movement. 

TallMan Robotics DF Cam Indexing Drives for Automated Assembly

Key Components of Indexing Drives:

1. Cam: The heart of the system, typically a cylindrical or face cam with a contoured profile. As it rotates, the cam’s lobes engage a follower.
2. Follower: A mechanical component (roller or lever) that traces the cam’s profile, converting rotational motion into controlled linear or rotary output.
3. Dwell Periods: The cam’s design includes flat or low-profile sections where the follower remains stationary, allowing operations (e.g., drilling, filling) to occur while the driven part is motionless.
4. Motion Profile: The cam’s shape dictates acceleration, velocity, and deceleration, minimizing jerk and ensuring smooth transitions between positions.

This table precedes the product images and technical specs of  DF Indexing Drives

DF Cam Indexers Flange Output Cam Indexers

Basic Parameters of DF Cam Indexers

FAQs about DF Indexing Drives

What is a DF Flange Output Cam Indexer?

A DF indexer is a mechanical device. It converts constant motor rotation into precise, stepped movements. The output features a flat flange. This design allows for easy attachment of dials and turntables.

How does the internal mechanism work?

The input shaft of DF cam indexers holds a globoidal cam.The cam pushes against rollers on the output turret.The shape of the cam determines the timing of the movement. It creates a smooth motion followed by a fixed pause.

Why should I use a flange output design of DF ?

The flange of DF cam indexers provides a large, stable mounting surface. It handles high axial and radial loads better than a shaft output. DF cam indexers simplifies the installation of heavy worktables or large automation fixtures.

What is the difference between motion and dwell from DF?

“Motion” refers to the time when the output flange rotates. “Dwell” is the period when the flange stays locked in place. The internal cam profile of DF cam Indexers indictates the ratio between these two phases.

Are DF indexers better than servo motors?

DF cam indexers offer higher mechanical rigidity and lower costs for fixed stop patterns. Servo motors provide more flexibility for chaning positions.