Indeed, there are dozens of different spring designs from small ones to larger ones with some exotic shapes. Handling those part with a robot is not an easy task and using classical gripper can rapidly increase the level of picking complexity as the spring shows different gripping points depending on its orientation. In this context, magnets are the perfect gripping solution.
For this project, PES has built a complete EOAT including the PLAY70x2 magnet with air distribution controlled through Profinet. The PLAY70x2 was equipped with specially design V-shaped pole shoes to cover all the diameter range and avoid marking. An additional parablond sheet has been installed on the contact surface to ensure non-marking at a critical handling process before painting.
In the end, we proposed a solution that does not require any operation for production change and that only has two wearing parts : the V-shaped pole shoes and the parablond sheet.