Siemens SINUMERIK 840D Operation/Programming Manual page 234
Shopmill
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Also See for SINUMERIK 840D:
- Function manual (920 pages) ,
- Diagnostics manual (714 pages) ,
- Operating turning (713 pages)
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3
Programming with ShopMill
3.7 Drilling
Parameters
T, D, F, S, V
See Sec. "Programming the tool, offset value and spindle speed".
Stock removal
The drill is retracted from the workpiece for stock removal.
Chipbreaking
The drill is retracted by the retraction amount V2 for chipbreaking.
Tip
The final drilling depth (Z1) refers to the drill tip
Shank
The final drilling depth (Z1) refers to the drill shank
Z1
Final drilling depth (inc.)
D
Max. infeed
DF
Percentage for each additional infeed
DF=100: Amount of infeed remains constant
DF<100: Amount of infeed is reduced in direction of final drilling depth.
Example: Last infeed was 4mm; DF is 80
V1
Minimum infeed
Parameter V1 is provided only if DF< 100 has been programmed.
If the infeed increment becomes minimal, a minimum infeed can be programmed in
parameter "V1".
V1 < Amount of infeed: The tool is inserted by the infeed increment.
V1 < Amount of infeed: The tool is inserted by the infeed value programmed under
V1.
V2
Specified amount or defined per machine data – for chip breaking only
Amount by which the drill is retracted for chipbreaking.
V2=0: The tool is not retracted but is left in place for one revolution.
V3
Limit distance – for unclamping only
Distance to last infeed depth that the drill approaches at rapid traverse after
unclamping.
Automatic: The limit distance is calculated by ShopMill.
DT
Dwell time for relief cut.
3-234
Description
next infeed = 4 x 80% = 3.2 mm
next infeed = 3.2 x 80% = 2.56 mm etc.
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
3
10.04
Unit
mm
mm
%
mm
mm
mm
s
rev
Siemens AG, 2004. All rights reserved
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