Collision Protection; General; Safety; Checking The Reference Point After A Collision - Fronius LaserHybrid WF 25i Operating Instructions Manual

Collision Protection

General

The laser welding head is fitted with collision protection to protect the LaserHy-
brid welding torch and the entire laser welding head.
The collision protection works on the floating contact principle. Displacing the
welding torch a certain amount will open the circuit (ring line) between the two
inputs for the robot control.
The ring line runs from the laser welding head, via the LaserHybrid hosepack, on
to the SplitBox SB 360i LaserHybrid, and from there on to the connection for the
robot interface used on the power source.

Safety

The collision protection and its digital analysis are not a substitute for an elec-
tromechanical emergency stop protection device.
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Checking the IMPORTANT! After a collision, check the reference point as follows:
Reference Point
after a Collision
1
2
3
Further information can be found on page 123.

Signal Analysis

The signal from the collision protection is sent to the robot control via a robot in-
terface.
In the event of a collision, the ring line will open and the signal level will drop.
The robot control must carry out the following program sequence:
-
-
WARNING!
Just like with collision protection, the emergency stop protection device also
has to shut off the arc process and the laser process.
Set a 14 / 20 mm stick out on the LaserHybrid welding torch depending on
the application and design
Move to reference point
Using the gauge, check the position of the wire electrode in relation to the fo-
cal point in the x/y/z direction
Stop the laser and arc welding process immediately
Stop the robot movement immediately
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