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home page Versione italiana English version contattaci
home page Versione italiana English version contattaci

VISION SYSTEM FOR THE CONTROL OF CORRECT SCREW ASSEMBLAGE

seeger
Problem:

Check if the mounting screws on the gas valves are properly tightened.

The main difficulty of this application is due to the lack of reference points from which to deduce the repetitive measurement, the large tolerance of size and form of the screws.

Another difficulty is caused by the position of the screws which are often inside components.

Also in this application is checked for the presence of brands and required the storage of defects due to a code stored on the valve for the total traceability.

 

Solution:

For this type of application is used the vision system MEASURE dedicated to the dimensional control for various types of objects. The system automatically compensates for variations in lucidity of the surface of the screw while maintaining the correct measurement. The reference points from which to measure are hooked on the structure of the valve with a logic that decides from time to time the best strategy for judging the goodness of the references themselves.

The system, formed by two stations, it collects data on the valve train of vision by coding each of them with its own barcode and storing data on a database that stores all the defects. The second station (unloading) will check before packing, if you have arrived to repair defective valves.

The vision system has seven cameras to examine individually the presence and spin of the screws on the valve and stamps. It also has features a BarCode reader to recognize the bar code on the valve that will be used to uniquely recognize the valve in the database.

The unloading station will have a manual reader with which to check the data of the valves before the packing.

Total reliability of the procedure:

With the principle of total reliability doesn't exist the possibility that a defective valves can be packing by mistake, in fact there is an additional control in the packaging station that verifies that the valve has been checked with a positive outcome by the vision system.

 

Illumination:

VEA produces customized lighting solutions,have been used for this application of LED illuminators particularly powerful and flexible (VEA-SNAKE) to illuminate the screws individually. Vea Snake was used to reach the screws without difficulty and to give the possibility of fast changes.

 

 

Operator panel:

The operator panel allows you to visualize real-time status of the valve examined by visualizing the errors found on it. The operator panel can be modified very easily by the customer.

 

VEA s.r.l. - via Fratelli Rosselli, 43 - 20010 CANEGRATE (MI) - ITALY - e-mail: vea@vea.it - 2000-2013© All Rights Reserved - P.I. 13478090155