5
08/2005 ShopTurn Functions
5.2 Drillin
5
♥ Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition 5-171
The machine manufacturer may have made specific settings for
centered tapping in a machine data code.
Please also refer to the machine manufacturer's instructions.
Thread
centric >
¾ Press the "Drilling" and "Thread centric" soft keys.
Parameters Description Unit
T, D, F, S, V See Sec. "Creating program blocks".
P Pitch
The pitch is determined by the tool used.
mm/rev
in/rev
Turns / "
MODULE
1 cut
Stock removal
Chipbreaking
The thread is drilled in one cut without stopping.
The drill is retracted from the workpiece for stock removal.
The drill is retracted by the retraction amount V2 for chipbreaking.
Z0 Reference point (abs) mm
Z1 Tapping depth with reference to Z0 (abs. or inc.) mm
D Maximum infeed (for stock removal or chipbreaking only) mm
V2 Retraction amount (for chipbreaking only)
Amount by which the tap is retracted for chipbreaking.
V2=automatic: The tool is retracted by one revolution.
mm
5.2.3 Drilling and reaming
The "Drilling" and "Reaming" functions are used when you want to
program various drill holes on the end face or peripheral surface.
The tool is moved at rapid traverse to the programmed position,
allowing for the retraction plane and safety clearance.
Centering
1. The tool is inserted into the workpiece at the programmed feedrate
F until it reaches the depth or diameter.
2. On expiry of dwell time DT, the tool is retracted at rapid traverse to
the safety clearance.
Drilling
1. The tool is inserted into the workpiece at programmed feedrate (F)
until it reaches the depth X1 or Z1.
2. On expiry of dwell time DT, the tool is retracted at rapid traverse to
the safety clearance.
Reaming
1. The tool is inserted into the workpiece at programmed feedrate (F)
until it reaches the depth X1 or Z1.
2. On expiry of dwell time DT, the tool is retracted at the programmed
feedrate to the safety clearance.
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