This is what the plasmo mirrorobserver can do
- Detects cosmetic defects such as minute scratches and inclusions
- Checks the degree of reflection and controls inhomogeneous reflection
- Control of mirror surfaces
- Acceptance of the necessary measuring tasks for the part handling (automation)
Practice Report:
"Mirror, mirror on the wall…" - Quality control of reflecting, shining surfaces
Surface inspection of shining, polished or reflecting surfaces places high demands on the lighting equipment and the innovative power of companies. Mostly it is necessary to design specific lighting to realise quality inspection. For Magna in Ireland and in USA, plasmo developed an innovative solution for measuring and quality inspection of electrochromatic interior vehicle mirrors. Beyond the mirror inspection, this solution offers numerous possible applications for quality control and measuring of reflecting, shining surfaces in general such as in production processes of engine blocks and cylinders, chromium steel kitchen appliances, glass surfaces, solar panels, coils, etc. Details regarding this application example can be found on our homepage under products/industrial image processing/mirror observer.
Brief report plasmo for Magna: Plus 40 per cent productivity
In the development of a solution for the measuring and quality inspection of electrochromatic interior vehicle mirrors at Magna in Ireland and in USA the plasmo "engineered solution" project approach proven over many years was employed. Plasmo assumes all tasks from the definition of the inspection task to operating the solution:
The first step was the Definition of the individual inspection or detection tasks with an idea of what defect sizes have to be detected and which cycle times have to be maintained - a process that took several months and was conducted jointly with the customer.
A challenge that cannot be underestimated: In the vehicle mirror production, 16 different mirror geometries with different glass thicknesses, clip and sizes and band lengths are used. Production amounts to 2.5 million units per year in 3-shift operation with a cycle time of 7 seconds. The solution for quality assurance should not cost any additional time in the production process.
The solution
Integrated in the production processes are now several intelligent camera systems on two image processing stations with the customised plasmo software solution which checks the self-dimming mirrors of various automobiles for cosmetic defects among others.
In other words, surface defects on the mirrors such as scratches, inclusions, etc. or the installation of the clips are checked. Since some defects can only be checked during the dimming and/or brightening operation, quality inspection also takes place here and during the fastening of the clips through gluing (tightness of the glue bead and the closure). In addition, the application of the absorber pads and the quality of the packaging are also checked. Finally the laser engraving of the serial number is also checked to guarantee complete component traceability.
The result
The plasmo solution allows Magna 40 per cent more productivity. Defective components are directly separated during the production process. Through the stored quality documentation the traceability of individual production parts can be guaranteed even after years which for example brings huge cost savings in the event of possible complaints, call-back campaigns.
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