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Virtual Panel Event about Industrial Connectivity

Virtual event


This 60-minute virtual panel discussion between industry experts will explore the intersection of connectivity (more)

UKIVA Machine Vision Conference



Join us on 15 July 2021 on the MVC Technology Presentation Hub and explore eight online seminar theatres. (more)

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

06/10/2021 - 07/10/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Miniature indexers deliver big benefits

Miniature indexers deliver big benefits
A unique new range of miniature cam-operated indexing mechanisms is now available to the UK market, as a result of the recent appointment of Precision Motion (COFIL) as agent for Japanese manufacturer Kamo Seiko Corporation. The range comprises two distinct product lines: miniature cam indexing drives and miniature hybrid cam/pneumatic indexing drives.

The miniature cam indexing drive is a completely mechanical device which employs a cam to convert a continuous rotary input into an intermittent output motion. Although in concept this is similar to standard cam-follower mechanisms, the Pearldex range has one key difference. To permit very small orthogonal input/output centre distances (between 16 and 40mm), the conventionally used cam-follower rollers are replaced with precision ground steel balls; the benefits of smooth output motion, zero-backlash, high efficiency, micron accuracy, locked position in station, etc, all still remain. The mech-anisms can either be supplied with shaft input, or completely motorised with miniature gearhead and AC motor. 

The standard number of stations is between 4 and 16, with index periods between 90 and 330deg.

The miniature hybrid cam/pneumatic indexing drives are available with either shaft (Minidex) or flange (Minitable) output, with the concept of operation being the same for both. When the 'index' chamber is pressurised, a cammed piston moves along the cylinder imparting a rotary motion on the output shaft. At the end of the stroke, the 'lock' chamber is pressurised to provide a final accurate position. The key difference when comparing with conventional pneumatic tables is the use of a cam (rather than the conventional rack and pinion), which provides a smooth, gentle indexing motion without the need for crude and inefficient shock-absorbers. As a result, considerably shorter index times are possible. Between two and twelve stations are available as standard, however the Minidex cylinder can also be supplied with a zero-backlash gearhead (also manufactured by Kamo) to increase this to anywhere up to 1200.
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