The identification of damage and embossing on surfaces has never been more reliable.
Cognex´s new technology uses lighting and software algorithms to create high-contrast images that highlight raised and recessed features and defects and isolates them from the surface background. The optimized images can be inspected through the use of best-in-class vision tools. As a result, not only embossed and recessed texts or codes are better identified, but also surface defects such as holes, tears, notches or wrinkles.
Surface FX ™ technology simplifies the detection of defects and codes on surfaces with low contrast to the background and optimizes the visual inspection of parts. The technology can be used in industryspecific surface inspections in a variety of industries for:
- Identification of defects on surfaces
- Isolation of 3-dimensional features
- Identification of parts
- Tracking of parts
How does SurfaceFX work?
To identify three-dimensional features, the parts are illuminated from four different perspectives.
SurfaceFX analyzes the resulting reflections and shadows, combines the results of the light sources and creates a high-resolution image that highlights the recessed or raised features. The raised features are white and the recessed features are displayed in black.
These high contrast images can be used for further inspections for locating codes, edges and other features.
Application content SurfaceFX –
Examination of aluminium pressure pouring parts
The table frame of the rotary testing table, that uses 2 cameras, consists of a 80x40er Item and is ca. 1000x1000mm big with housing (aluminium sheet, white lacquered). A light curtain offers protection. The housing has a door for access to the rear area with safety switch. The aluminium plate has a diameter between 600mm and 800mm, 4 pan shots on plate and component query are made by external light guides.
Manually inserted will be with the round site downwards, the outer contour will be centered, where the groove for the seal of the product is. Clamping is made from one side from the outside on the product. Station 2 is the turning unit for pan shots.
Station 3 sets the clamping off (Pick and Place) and has 3 axis for bad parts on conveyor belt MK (1,5 m long) and a turning unit for pan shots.
Station 4/1 is the finished part removal, Cancellation of clamping and hoisting for faster part removal. Deposition on NIO belt takes place, whereby rework parts are pushed on the right side of the belt. NIO parts lay left on the belt.
The drives are pneumatical, the table drive works electrical. Brackets for 2 area scan cameras with telecentric optics and suitable lighting are existing. The valve terminal and service unit is made as open installation.
There is a drive (asynchronous motor + FU) for turning plate and brackets for monitor and keyboard.
The BHV-Automation assumes construction, production and installation of components – Everything out of one hand!