Rapid rotary table calibration
PTBnews 2.2023
02.05.2023
Novel ball plate equipped with 12 non-equidistantly positioned balls for measuring the deviations of the rotary table in 5 steps
Rotary tables are often used for positioning or angle measurements when measuring rotationally symmetric work pieces on coordinate measuring machines (CMMs). Geometric deviations of rotary tables can be directly measured on a CMM in six degrees of freedom by means of a self-calibrating procedure using a ball plate. PTB has developed a new concept designed to significantly reduce the required number of ball measurements compared to the former method. This method will allow the number of balls on the rotary table as well as the number of measurement positions in the CMM to be reduced. Provided that appropriate ball and measurement positions are chosen, the measurement uncertainty will increase only slightly. (Technology Offer 544)
Advantages
shorter measuring times
more cost-efficient setup and material use
direct use on the measuring instrument without any additional devices
Contact person for questions about technology transfer
Andreas Barthel,
Phone: +49 531 592-8307,
andreas.barthel(at)ptb.de,
www.technologietransfer.ptb.de/en