Coordinate measuring systems: A new guideline helps
Coordinate measuring machines are irreplaceable helpers in manufacturing. But careful acceptance and confirmation tests are essential for such measuring systems. DIN EN ISO 10360-8 does a good job of this, but there are gaps. A new VDI guideline solves the problem.
As proven and important as the DIN-EN-ISO standard 10360-8 is, there are gaps in it that make a more detailed explanation necessary. The new guideline VDI/VDE 2617 Sheet 6.2 explains the correct application of the DIN EN ISO standard and gives supplementary notes and recommendations for the performance of the acceptance and confirmation tests.
In addition, imprecise and incomplete contents in DIN EN ISO 10360-8:2014 are pointed out and adapted procedures are suggested, as the Association of German Engineers (VDI) writes.
Application requires knowledge of the standard
Knowledge of the standard is a fundamental prerequisite for the application of the guideline. The standard DIN EN ISO 10360-8 applies to Cartesian coordinate measuring machines (CMM) with optical distance sensors, and this also applies to VDI/VDE 2617 Sheet 6.2. Analogous to the standard, however, non-cartesian coordinate measuring machines can also be treated accordingly if there is general agreement between the parties involved.
VDI/VDE 2617 Sheet 6.2 contains explanations of the parameters presented in DIN EN ISO 10360-8. They are used for checking optical distance sensors measuring lines and areas, as well as for checking the use of optical distance sensors on rotary/swivel devices. The guideline contains a comparison of the previously used terms and parameters with the current ones. The VDI guideline also includes a description of optical distance sensors and their application.
Directive replaces 2019 draft
Publisher of the guideline VDI/VDE 2617 part 6.2 "Accuracy of coordinate measuring machines - Characteristics and their testing - Guideline for the application of DIN EN ISO 10360-8 for coordinate measuring machines with optical distance sensors" is the VDI/VDE Society for Measurement and Automation Technology (GMA).
The policy will be published in white print in February 2021, replacing the May 2019 draft (online orders: www.beuth.de or www.vdi.de/2617).
