TECAUMA developed an innovative robotic cell for glazing-bead fitting into window sashes.
At the present time, for all PVC window manufacturers, the 4 glazing beads are fitted manually in an opening sash : an operator strikes the glazing beads with a mallet to fit them in the frame. This operation is made by qualified operators, who must show precision to preserve the product quality, and also dexterity to manage the effort of fitting the glazing bead in the sash, and a perfect control of his effort in order not to damage the bead or break the glass. An operator has to strike on average 15 hammer blows for one glazing bead, so 60 hammer blows for one opening sash. A window manufacturing plant with a daily production of 200 windows totals up 24,000 hammer blows every day. The repetition of this gesture causes serious Repetitive Strain Injuries, in particular tendonitis, and is the cause of regular medical leaves.
In 2011, Tecauma started to study the idea of robotizing the process of fitting glazing beads in PVC windows, following several requests from its customers. Thanks to its 15-year experience of the window manufacturing sector and its know-how in robotics, Tecauma finally offers a solution to the problem : a glazing bead fitting robot. The right fitting of the glazing bead is ensured by the robot, which combines two functions : it is able to strike the glazing bead firmly (like a hammer), and it can also apply pressure all along the bead (like a roller). The quality of the result is guaranteed by the combination of these 2 functions, by the precision of the robot and its effort control : no window breakage, no frame breakage and with respect for the quality of the corner welds. This process has been given a European Patent. It was developed in collaboration with several window manufacturers, that provided Tecauma with their critical views all along the development, and allowed the robot to be tested on a wide range of products.
Tecauma demonstrated its glazing bead fitting robot on its stand during Fensterbau 2014.