8 Function
The Measuring station takes workpieces from the ongoing process to determine the height of the
workpieces.
A workpiece placed on the conveyor is transported to the stopper. The Rotating-Lifting module picks up the
workpiece and places it onto the measuring table. The distance sensor detects the height of the workpiece.
After detection the workpiece is placed onto the conveyor. Depending on the measurement result, the
workpiece is rejected by an electrical separator on a slide or transported to the end of the conveyor.
Through-beam sensors and diffuse sensors control the further material flow on the conveyor belts.
Output signal of the distance sensor
The distance sensor has both an analogue output and a switching output. The switching output can
be adapted to the measurement requirement by means of a simple teach-in stage.
9 Sequence description
Start prerequisites
•
No workpiece at start of conveyor
Initial position
•
Swivel module in position „Conveyor"
•
Gripper raised
•
Gripper closed
•
Stopper advanced
•
Separator retracted
•
Conveyor motor off
Sequence
1. The conveyor belt motor switches on if a workpiece is detected. The workpiece is transported to the
stopper.
2. The conveyor belt motor is switched off, if the workpiece is detected by the diffuse sensor in front the
stopper.
3. The Rotating-Lifting module picks up the workpiece and places it onto the measuring table.
4. The height of the workpiece is detected.
5. The Rotating-Lifting module picks up the workpiece and places it onto the conveyor.
© Festo Didactic 8038624
Measuring station
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