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Technology for creating 3D car models from BMW

04.08.2016

BMW has started to use a unique optical measurement technology at its pilot plant in Munich to create 3D models of vehicles in order to identify possible defects.

We are talking about the introduction of a fully automated installation. With the help of special sensors, a freely moving robot arm creates a full-fledged three-dimensional image of the car, and also builds a 3D model based on data collected with an accuracy of up to 100 microns. This allows you to identify barely visible flaws already at the initial stage of production.

The robot arm on special rails is installed on each longitudinal axis of the optical measuring complex and can move freely, drawing a car diagram in space. The process involves determining the base points, after which separate areas of the surface measuring approximately 80 x 80 cm are fixed. These areas are then combined and a picture of a full-fledged car is created. Data analysis quickly identifies any flaws, allowing technical integrators to take appropriate action early in production.

It is noted that the three-dimensional scanning of the vehicle can be fully automated and work during off-peak hours of loading or at night. Measurement data and analysis results are distributed online over the local network of the enterprise, and are also available to factories.

Previously, in manufacturing processes, robots used just one sensor to identify each specific part of the car. The new installation will involve two robotic arms. Thanks to this, measurements take half the time spent, as a result, the rework phase becomes much shorter.

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