Siemens SINUMERIK 840D sl Operating Manual page 475

Parameter
αC
(for ShopMill program)
Hirth joint
Tool
Preferred direction (for
ShopMill program)
Position
X0
Z0
X1
Z1
VX
* Unit of feedrate as programmed before the cycle call
Milling
Operating Manual, 05/2017, A5E40868956
Description
Rotational position for a pole position
● Round to the next Hirth joint
● Round up to Hirth joint
● Round down to Hirth joint
Note:
For machines with a Hirth joint
Tool tip when swiveling
● Tracking
The position of the tool tip is maintained during swiveling.
● No tracking
The position of the tool tip is not maintained during swiveling.
Preferred direction of the swivel axis for several possible alignments of the machine
Form F machining position:
Undercut size according to DIN table:
e.g.: F0.6 x 0.3 (undercut form F)
Reference point X ∅
Reference point Z
Allowance in X ∅ (abs) or allowance in X (inc)
Allowance in Z (abs) or allowance in Z (inc) – (for undercut form F only)
Cross feed ∅ (abs) or cross feed (inc)
Programming technological functions (cycles)
10.4 Turning - milling/turning machine
Unit
Degrees
mm
mm
mm
mm
mm
475