- Can work precision be automated despite part shape variations? - Significant part shape variation with manufacturing tolerance? - High production cost for low numbers? - Critical operating reliability parts? - With Eyesberg 3D control on distorted parts, VISIO NERF makes the incomparable compatible! - Precise work on variable shapes !
Using 3D vision, automatically correct overall shape variations between each part in order to very precisely automate local work on heterogeneous and large-volume parts: with shape variations, significant size spread, etc...
Automating high-precision work is possible !
With our Eyesberg® path tracking solution, with a precision of down to 7/100th of a mm, you can now automate high-precision work on significantly different parts with large size variations associated with manufacturing constraints (sectors: castings, composite material parts; types: large-volume parts, variable sizes).
Introduction: position or shape variation tracking ?
- Position tracking : the part's shape is known but its position in space is not identified. With a long and fastidious local radio tracking, segment by segment analysis should enable the part's position to be tracked, but what of a part of unknown shape? - Shape tracking : the part's shape is unknown and its position in space is not identified. The aim is to track the part globally in space according to its shape (curve analysis). This constraint prevented the robotization of precise work on parts with large shape variations. The solution to this constraint is now available. Its modular design adapts to all robotic work solution
Solution: tracking after image acquisition and comparison to a theoretical perfect part
- Phase 1: Images of the part are acquired for comparison to CAD reference files. - Phase 2: The cluster of points is then applied to a surface model of the part.
A new path calculation is used to consider a part with significant shape variation (observed via the cluster of points transmitted by the image acquisition system) as if it were a reference part, a perfect part, in order to be able to reproduce the desired work precision (the cluster of points is compared to the CAD file of the shape to track).
- Freedom from precise part positioning in space. - Compensation for shape variations. - Compensation for position variations relative to the reference part CAD file. - The final operation, finishing in this case, is performed by the robot to which Eyesberg® ED TRACKING has given all elements required for machining without collision and in accordance with the required precision.