SMW SPACESAVER 2400S, Installation, Operation And Maintenance Manual

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Chapter 4 – Operation
SS2400T/S
4-19
4.10.2.1 #100 – END OF BAR
Using the parameter #100 the barfeeder checks the bar length in the lathe and decides
whether the bar is or is not sufficiently long to manufacture a part.
H...... part length with squarring allowance
I ....... cut-off tool length
J ...... safety zone (is not a part of the parameter #100)
K...... minimum clamping length
#100 = H + I + K
Fig.4.12 Setting the Parameter #100 – End of Bar
Parameter #100 is formed by the following components:
Longest feed length (H + I) ....... mostly the part length with squaring all cut-off
tool width
Minimum clamping length (K) ... mostly the length of clamping device jaws
The length of the rest ranges between:
Minimum rest length ................. K + J
Maximum rest length ................ K + J + I + H
Actual length of the rest is always dependent on the length of the machined
bar. The rest length can be minimized by suitable length of the loaded bars.
Do not reduce the rest length by shortening the parameter
#100!!! Shortening the parameter #100 means a reduction
of the minimum clamping length!!!
4.10.2.2 #101 – PUSHER RETRACT POSITION
By appropriate setting of the parameter #101 it is possible to reduce the bar feeding time.
In forward motion the pusher sags by effect of its own weight. Consequently, it touches the
spindle insert and the rotating spindle could damage it. Parameter #101 sets such motion of
the pusher from the back position, at which the pusher cannot yet touch the spindle insert.
If the parameter #101 > 0 (e.g. 400 mm), the feeding will take place as follows:
The barfeeder feeds the bar and moves back by 50 mm. If the pusher moves more than 400
mm from its back position, the barfeeder will move back to the position set in the parameter
#101 (400 mm).
Set the parameter #101 with a sufficient safety distance from the pusher
contact with the spindle insert to avoid the pusher accident!!!
If it is necessary to extend the pusher from the lathe spindle, enter the safe position 0 mm.