The Geneva mechanism, also known as the Geneva drive or Maltese cross mechanism, is a gear mechanism that converts continuous rotational motion into intermittent rotary motion. It consists of a driving wheel with a pin that engages with slots on a driven wheel, causing the driven wheel to advance in precise steps.
Example Applications of the Geneva Drive:
- Mechanical Watches: Used to control the movement of the watch hands, ensuring precise timekeeping.
- Film Projectors: Advances the film frame by frame, providing smooth and accurate motion.
- Indexing Tables: Common in manufacturing processes where precise positioning of workpieces is essential
- Packaging Machinery: Used for filling, sealing, and labeling products at specific intervals1.
- Printing Presses: Ensures accurate alignment of paper or other substrates during the printing process
- CNC Machines: Tool changers in CNC machines use the Geneva drive for precise tool positioning
- Plotters: The pen change mechanism in plotters relies on the Geneva drive for accurate movement
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