AGMA 17FTM05 PDF

In today’s production, a variety of different measurement devices is used to assess the quality and accuracy of workpieces. These devices include CMMs, gear checkers, form testers, roughness testers, and more. It requires a high machine investment and a high handling effort, especially if a full end-of-line measurement is needed.

One approach to reduce quality costs is to include all measurements in one single machine being suitable and robust enough for use in production. This reduces machine investment, handling efforts and set-up time. Being able to measure in production also helps to reduce idle times by reducing transport ways to climate-controlled measuring facilities. Klingelnberg combines the experience from machine tool development and high precision measurement.

This report describes how a CCMM (Circular CMM) can be integrated into a production environment. The main challenges are dust and oil fog contamination, temperature changes throughout the day, and vibrations from production machines. Operator qualification is also an issue since the measuring machine is handled by production machine operators.

The result is a measuring machine showing the capability and the necessary accuracy in measuring gear components. This accuracy applies to all features of rotational symmetric parts within a gear box. Finally, it will be shown how capital-intensive gauges can be substituted using the full flexibility of a modern CNC-controlled measuring machine. Compared to gauges, much more useful information can be gathered and statistically evaluated to support production control. Furthermore, component design changes only require slight software modification at no cost. Using gauges, expensive parts need to be reworked or reinvested, including high costs and lead times.