Thinking to the production environment, it’s common to imagine busy people, trolleys and carts moving, suspended loads, machineries working… in short, in one way or another, what’s imagined is noise.
Now, let’s imagine returning home after a long, confused and noisy working day. We put off our shoes, take something to drink from the fridge and sit, finally, in our favourite armchair. Well-deserved relax. Well-deserved quiet. Most of all, well-deserved silence. From our smartphone, we give the command to pull down the super-silent motorized shade and rest for a while in the dim light. But here the magic disappears: we get a small noise out of the motorized shade and, even if not so loud, it resounds in that moment of quiet after so much fuss.
One of our Customers, productor of actuators for windows blinds, awnings, motorized shades, gate opening, … with different plant and subsidiary companies all over Europe and North Africa, decided to invest in quality and to propose to its final customer a product top of the line, which doesn’t neglect neither the most marginal aspect of the actual application, in order to give to the user the maximum comfort in use.
For a particular model of automatic windows blind, this customer in fact decided to invest in order to eliminate as much as possible whichever noise made during the standard operations. Studying their motor, the noise had been associated to vibration and vibration to small mechanical misalignment of the rotor of the motor.
From here started the need of a production testing system, to check the 100% of the rotors, not only fast and reliable, but with a high precision mechanical, which allow to verify small mechanical “defects” which could then cause the noise. The complications to face were many: to filter the rotor defects it’s necessary that the rotor is put in rotation, therefore as first step it was necessary that the mechanical to fix and put the rotor in rotation didn’t introduce any kind of error, that the positioning of the rotor in test done by the operator was rigidly guided, that the taking and putting in rotation, in order to avoid the human error, were completely automatic. Actually, as the system had to test two models of rotors with different stack length, the system included two alternative probes, already present into the bench and with automatic positioning on the base of the model to test. Among the other, it was guaranteed accuracy in distance between the rotor under test and the probe 0 to 1mm +/- 0.025 mm, parallelism 0.03 mm, axial position accuracy +/- 0.3 mm and repeatability of the vertical positioning accuracy +/- 0.2 mm. It was a bench extremely sophisticated, precise and complex, the best available, for a Customer which wanted its product to be the best on the market.
e.d.c. always works with high quality standards, for all the Customers; we can define and customize many aspects, but our high quality is always out from the question. e.d.c. supports in the best way your path to the best product.