Afag UG 20 NC, Инструкции по монтажу и обслуживанию

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28 UG 20-UG 25-OI-vers. 3.5 gb. 20190409
3.2.8 Example of application of sensor technology combined with specially
formed grip fingers (depending on application):
Position of grippers Description
Gripper closed
The grip fingers (1) contact each other.
This position is usually queried by a magnetic sensor.
Part (2) correctly gripped
Depending on size and form of the part this position is
queried by magnetic or inductive sensors. To guarantee
highest precision this position is queried by two inductive
sensors. These are set in such a way that one sensor
responds and the second one does not respond. Through this
combination it is possible to detect whether a part was
correctly gripped.
Part not correctly gripped
In this position all sensors do not respond if the grip fingers
are properly designed.
Gripper open
This position is usually queried by a magnetic sensor.
HINWEIS
Depending on the form of parts and fingers an optimum operational
safety can also be achieved by alternative sensor evaluations.
1
2