Siemens SINUMERIK 840D sl Operation/Programming Manual page 176

ShopTurn Functions
5
5.2 Drilling
Tapping
Parameters
T, D, S, V See Sec. "Creating program blocks".
P Pitch
The pitch is determined by the tool used.
MODULUS: Used with endless screws, for example, which extend into a gear
wheel.
Turns/ ": Used with pipe threads, for example.
For values entered in turns/", enter the integer in front of the decimal point in the first
parameter field and the figures after the decimal point as a fraction in the second
and third field.
For example, 13.5 turns/" is entered as follows:
SR Spindle speed for retraction
VR Cutting rate for retraction (alternative to SR)
Position Select from 8 different positions:








Clamp/release spindle
The function must be set up by the machine manufacturer.
1 cut The thread is drilled in one cut without stopping.
Stock removal The drill is retracted from the workpiece for stock removal.
Chipbreaking The drill is retracted by the retraction amount V2 for chipbreaking.
Z1 Tapping depth with reference to Z0 (abs. or inc.) – (only for end face/end face C and
end face Y)
X1 Tapping depth with reference to X0 (abs. or inc.) – (only for peripheral
surface/peripheral surface C and peripheral surface Y)
D Maximum infeed (for stock removal or chipbreaking only)
V2 Retraction amount (for chipbreaking only)
Amount by which the drill is retracted for chipbreaking.
V2=automatic: The tool is retracted by one revolution.
5-176
5. The direction of rotation of the spindle reverses and the tool
retracts to the safety clearance at spindle speed SR or cut rate
VR.
The machine manufacturer may have made specific settings for
tapping in a machine data code.
Please also refer to the machine manufacturer's instructions.
Press the "Drilling", "Thread" and "Tapping" soft keys.
Thread >
End face/End face C – Front
End face/End face C – Rear
Peripheral surface/Peripheral surface C – Inner
Peripheral surface/Peripheral surface C – Outer
End face Y – Front (only when Y axis exists)
End face Y – Rear (only when Y axis exists)
Peripheral surface Y – inner (only when Y axis exists)
Peripheral surface Y – Rear (only when Y axis exists)
Description
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
08/2005
5
Unit
mm/rev
in/rev
Turns / "
MODULE
rev/min
m/min
mm
mm
mm
mm
♥ Siemens AG, 2005. All rights reserved