HEIDENHAIN SW 548328-05 DIN Programming - Manual (Page 551)

HEIDENHAIN MANUALplus 620, CNC PILOT 620/640
551
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Shaft machining
For shafts, TURN PLUS supports rear-face machining of outside
contours in addition to standard machining processes. This enables
shafts to be completely machined using one setup. You can select the
clamping type for the shaft machining (Shaft/chuck or Shaft/face
driver
) in the V input parameter in the chucking equipment dialog.
TURN PLUS does not support retracting the tailstock and does not
check the setup used.
Precondition for shaft machining:
The workpiece is clamped at
spindle and tailstock.
Separation point (TR)
The separation point (TR) divides the workpiece into front and rear
area. If no separation point has been specified, TURN PLUS sets a
separation point at the transition from the largest to a smaller
diameter. Position the separation points on outside corners.
Tools for machining the
 Area on front side: Main machining direction –Z; or primarily "left"
recessing or tapping tools, etc.
 Area on rear side: Main machining direction + Z; or primarily "right"
recessing or tapping tools, etc.
Setting/changing the separation point: See "Separation point G44" on
page 215.
Protective zones for drilling and milling operations
TURN PLUS machines drilling and milling contours on transverse
surfaces (front/rear face) if:
 (Horizontal) distance to transverse surface > 5 mm, or
 Distance between chucking equipment and drilling/milling contour is
> SAR
(SAR: See user parameter).
If jaws are used for clamping the shaft at the spindle, TURN PLUS
accounts for the cutting limitation (O).
Danger of collision!
TURN PLUS does not monitor for collisions during
transverse machining or machining operations on the end
face.