Indexing tables rotate a workpiece or assembly through a series of fixed stations, with each indexing move needing to land precisely at the same position cycle after cycle across potentially millions of cycles over the equipment’s service life. Positioning drift that would be tolerable in many applications compounds into real production quality issues on an indexing table, where each station’s tooling and processes assume the workpiece arrives at exactly the same point every time.
Ever-Power’s PC+NMRV helical-worm series is specified into indexing table applications across Australian manufacturing and assembly automation, where the combination of low backlash, self-locking station holding, and compact right-angle output suits this demanding positioning duty. This page covers the technical fit for indexing table drives, three manufacturing facility deployments, and answers to specification questions from equipment designers.
| Indexeringstabel aanvraag | PC+NMRV Ontwerpreactie |
|---|---|
| Constante positie van het station gedurende miljoenen cycli. | De spiraalvormige voorverstelling met minimale speling minimaliseert de ophoping van positioneringsfouten. |
| Positie behouden tijdens stationaire processen | Zelfvergrendelende wormwieluitgang houdt de positie vast zonder continu servokoppel. |
| Snelle indexering tussen stations | Helical stage’s higher input speed compatibility supports fast indexing motion |
| Compacte afmetingen onder de tafel | De haakse uitgangsconfiguratie past in de gebruikelijke montagemogelijkheden van indexeertafels. |
Pijnpunt: Een meerstationaire assemblage-indexeertafel vertoonde geleidelijke positioneringsafwijkingen gedurende langere productieruns, die terug te voeren waren op speling in het oorspronkelijke aandrijfmechanisme.
Oplossing: De vervanging van PC071+NMRV050 leverde aantoonbaar lage spelingprestaties en zorgde voor een consistente positionering van het station gedurende langdurige productiecampagnes.
Resultaat: De positioneringsconsistentie bleef behouden tijdens alle daaropvolgende grootschalige productieruns na de upgrade.
Pijnpunt: Een indexeertafel voor elektronica-testen had een snellere cyclustijd tussen de stations nodig om een hogere productiesnelheid te kunnen verwerken, zonder dat dit ten koste ging van de vereiste positioneringsnauwkeurigheid van de testapparatuur.
Oplossing: PC063+NMRV040 specified for servo compatibility supporting the faster cycle rate while maintaining the table’s required positioning tolerance.
Resultaat: Increased production cycle rate achieved while maintaining the testing station’s positioning accuracy requirement.
Pijnpunt: A precision machining facility’s rotary workholding indexer needed exceptionally reliable station holding during cutting operations, where any drift would directly affect part accuracy.
Oplossing: PC080+NMRV075 is gespecificeerd voor de combinatie van positionering met minimale speling en gegarandeerde zelfvergrendelende werking tijdens de bewerkingscyclus.
Resultaat: Consistent part accuracy maintained across the indexer’s production schedule following installation.
| 🏭 Manufacturing Precision — over two decades of production experience extended across both gear stages of the helical-worm combination series |
| 📡 Indexing Application Engineering — confirm the correct combination against your station count, cycle rate, and positioning tolerance requirements |
| 🔧 New Equipment Design Support — OEM configuration options for indexing table manufacturers developing new equipment |
| 💰 Factory Direct Pricing — competitive cost from prototype development through to full production manufacturing volumes |
The helical pre-stage’s lower inherent backlash compared to a worm-only input reduces the rate of positioning error accumulation over extended service life. Actual long-term accuracy depends on your specific load, ratio, and duty cycle — we can discuss expected performance characteristics for your application during specification.
The gearbox itself drives the table’s rotational positioning; the number of index stations is determined by your table and tooling design rather than the gearbox. Provide your station count and required index angle per cycle, and we will confirm the appropriate ratio for your specific indexing pattern.
Yes, the NMRV worm output stage’s self-locking behaviour above the standard ratio threshold holds the table in its indexed position without requiring continuous servo holding torque, which is valuable during station operations like machining or precision assembly where positional stability matters.
Achievable cycle rate depends on your specific ratio, servo motor capability, and the table’s mechanical design including inertia and required index angle. Provide your throughput target and table specifications, and we will confirm whether your target cycle rate is achievable with the appropriate gearbox configuration.
Ja, we ondersteunen ontwerpers van apparatuur vanaf het eerste concept en de prototypeontwikkeling tot aan de volledige productie, waarbij we ervoor zorgen dat de specificaties consistent blijven naarmate uw ontwerp zich verder ontwikkelt. Schakel ons team vroeg in uw ontwerpproces in voor de meest effectieve ondersteuning bij de integratie.
PC+NMRV units typically carry a higher unit cost than standard NMRV due to the additional helical stage, reflecting the improved backlash and efficiency performance. Whether this premium is justified depends on your specific positioning tolerance and cycle rate requirements — we can advise on whether your application genuinely needs the helical-worm combination or whether standard NMRV meets your needs at lower cost.
Ontdek het complete assortiment spiraalwormwielen op onze website. PC+NMRV-seriepagina, Of blader door andere automatiseringsapplicaties op onze website. aanvraagpagina.
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