Increasing measuring accuracy in gear production

The screw jacks of the Austrian company  ALBERT GmbH must keep on performing in tricky conditions  – as part of an oil platform at 140 meters below sea level, for example. To ensure that the screw jacks operate reliably, the company makes every effort to produce them with the ultimate precision. A coordinate measuring machine supports the company in its quality inspection.

Machine factory ALBERT measures high-performance gears with ZEISS ACCURA

Martin Kirchmaier and Reinhold Malli, a technical engineer, are delighted by their progress.

Martin Kirchmaier and Reinhold Malli, a technical engineer, are delighted by their progress.

Challenge: exact measuring results

They move the drums in printing machines and rotate antennae in the desert – even though the screw jacks from this drive specialist are very different, they all have something in common: they must meet high standards for precision and reliability.  But high wasn't high enough for Managing Director Martin Kirchmaier back in 2013. He also wanted to accept orders even from the most safety-critical industries and decided to further increase the accuracy of the company's gears. He invested not only in a new machine tool, but also set out to find a coordinate measuring machine that would enable him to verify the precision of his products.

Engineer Reinhold Malli finds the precision and repeatability of the new measuring machine particularly impressive.

Engineer Reinhold Malli finds the precision and repeatability of the new measuring machine particularly impressive.

Solution: ZEISS ACCURA bridge-type measuring machine

Up until this point, the gear manufacturer had only used the integrated measuring technology of the machine tools in combination with a manual horizontal arm measuring machine and measuring equipment such as gages and slide gages. Kirchmaier now opted for the ZEISS ACCURA coordinate measuring machine. To ensure that the highly precise measuring machine performed at its best, the Managing Director also invested in a climatized measuring room. Now incoming goods inspection, first-piece inspection, random samplings and final inspection are nearly all performed on the measuring machine. The same applies to the 100% inspections of the gear components with demanding standards, such as those for use underwater.

Precise bridge-type measuring machine helps attract new orders

ALBERT manufacturers all manner of screw jacks from raw material.

ALBERT manufacturers all manner of screw jacks from raw material.

Benefit: measuring accuracy increased, order won

Compared to the former method involving manual capture of the quality characteristics, ALBERT has clearly shortened its measuring times. Above all, however, the higher precision of the machine offers the design and production staff greater certainty. They can now better assess the accuracy of their work and then perform any adjustments required. Kirchmaier, the Managing Director, is pleased: "We now have a new understanding of quality – and can even provide the highly complicated documentation for nuclear technology." Kirchmaier's farsightedness has paid off: With the aid of the new measuring machine, he has received an order for gate drives at a British nuclear plant.

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