Optical system checks sheet metal surfaces

Automatic surface inspection system provides early detection and classification os surface defects in press shop and automotive body assembly.

With the ABIS II optical surface inspection system a wide range of surface defects on body-in-white (BIW) and sheet metal parts - such as bumps, dents, waviness, sink marks, constrictions, cracks and so on - can be detected early in the production processes.

Contrary to the more common test methods, which can be only carried out by skilled personnel, ABIS II - demonstrated at EuroBlech 2006 exhibition - guarrantees a 100% automated, complete and objective quality control.

It detects even the smallest surface defects - less than 10 micron - and evaluates them.

The flexible sensor technology allows the adaptation to various measurng tasks and handling systems (such as linear axes, robot for in-process testing and so on).

The ABISpro system software for the acquisition and evaluation os measuring data features the definition of defect characteristics and severity classifications; additionally, the tolerance settings can be adjusted to user quality standards.

The classified surface defects can be marked and displayed in a textured view on the 3D model of the test part on the monitor.

With its high measuring and evaluation speed (<1msec) and the individually adjustable software parameters, ABIS II offers a decisive potential for cost reduction owing to the fact that quality-relevant defects ar detected at an early stage, which contributes to a significant reduction of rework.

A system was shown in operation at EuroBlech 2006, using sensors mounted on a KUKA multi-axis, overhead mounted robot.

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