Rack, Work Piece Detection Station - Bosch REXROTH mMS 4.0 Operating Manual

20/68 Bosch Rexroth AG
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5.2.1 Rack, work piece detection station

The rack station consists of a table with lockable guide rollers and the following
function modules assembled on top of it:
2 separating racks

Conveyor belt

Sensors for materials testing

Picking unit

Machine control panel

Maintenance unit

Electrical supply with signal processing

– Main switch on left-hand side of the system
– Connector to right-hand/left-hand station
– Mains supply, fuses
– 3 emergency stop relays
– Profibus coupler
Programmable logic controller XLC L25 with supplied PLC software

Two separation racks offer space for 10 work pieces each. The placement status
is monitored by microswitches. A pneumatic cylinder pushes the bottom most
workpiece in the stack onto a conveyor that runs it past four test stations.
One optical, capacitative and inductive sensor each acquires the material
properties with a pneumatic cylinder acquiring the contour. The test result
is saved in the controller. A work piece can be removed from the conveyor belt
by means of a pneumatic cylinder. At the end of the conveyor, a sensor is used
to determine that a work piece has arrived and to stop the conveyor.
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Fig. 7: Rack station
1 Separating racks
2 Conveyor belt
3 Sensors
Training system mMS 4.0 | R901429162/04.16
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4 Profibus coupler
(behind conveyor belt)
5 Picking unit
6 Maintenance unit
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