Vision-based on-machine measurement for CNC machine tool

Ruixue Xia; Jiang Han; Rongsheng Lu; Lian Xia

doi:10.1117/12.2181185

6 March 2015 Vision-based on-machine measurement for CNC machine tool

Ruixue Xia, Jiang Han, Rongsheng Lu, Lian Xia

Proceedings Volume 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation; 94462P (2015) https://doi.org/10.1117/12.2181185
Event: International Symposium on Precision Engineering Measurement and Instrumentation, 2014, Changsha/Zhangjiajie, China

Abstract

A vision-based on-machine measurement system (OMM) was developed to improve manufacturing effectiveness. It was based on a visual probe to enable the CNC machine tool itself to act as a coordinate measuring machine (CMM) to inspect a workpiece. The proposed OMM system was composed of a visual probe and two software modules: computer-aided inspection planning (CAIP) module and measurement data processing (MDP) module. The auto-focus function of the visual probe was realized by using astigmatic method. The CAIP module was developed based on a CAD development platform with Open CASCADE as its kernel. The MDP module includes some algorithms for determination of inspection parameters, for example, the chamfered hole was measured through focus variation. The entire system was consequently verified on a CNC milling machine.

Citation Download Citation

Ruixue Xia, Jiang Han, Rongsheng Lu, and Lian Xia "Vision-based on-machine measurement for CNC machine tool", Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94462P (6 March 2015); https://doi.org/10.1117/12.2181185

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