OCTUM GmbH, Renntalstraße 16, 74360 Ilsfeld, Germany

+49 (0) 7062 914940 info(at)octum.de

Octum GmbH

Inspection of vehicle panels

In an assembly plant, 20 versions of panels for cars are fitted with buttons where the symbols are lasered on. The labelling and inspection are carried out on a rotary table in several stations. For lasering of the symbols, the black painted panel parts have to be very precisely positioned. Removal of the paint reveals the symbols on the opaque white base plate, which can be clearly seen by the driver at night with the aid of backlighting. The comprehensive machine vision solution required has to measure the position of each symbol relative to a reference point and verify the quality of the symbols.

The individual functional segments of the panel are each inspected with a camera, which means that three high-resolution cameras are used with the CV-600 PC system. The freely configurable display inspection software meets the requirements for position measurement and fault detection for the symbols. The high-resolution cameras allows lasering faults with a diameter of anything greater than 0.15mm to be detected. The measuring accuracy for the position is 0.05mm. The inspections run automatically following the start signal. The system automatically activates the relevant transmitted and reflected light required for each step in the inspection process.

Machine vision means that no defective parts are passed on for further assembly. The waste costs for the complete part with electronics fitted are thus reduced and returns due to faults are avoided. Because the machine vision inspection takes place immediately after lasering, process faults are detected as soon as they occur and can be resolved immediately, before any widespread faults arise.

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