Circular Spigot (Cycle77) - Siemens SINUMERIK 840D sl Operating Manual

Programming technology functions (cycles)
8.4 Milling
Parameter Description
UXY Plane finishing allowance for the length (L) and width (W) of the rectangular spigot.
Smaller rectangular spigot dimensions are obtained by calling the cycle again and
programming it with a lower finishing allowance. - (only for ∇ and ∇∇∇)
UZ Depth finishing allowance (tool axis) - (only for ∇ and ∇∇∇)
W1 Width of blank spigot (important for determining approach position) - (only for ∇ and
∇∇∇)
L1 Length of blank spigot (important for determining approach position) - (only for ∇ and
∇∇∇)
FS Chamfer width for chamfering - (for chamfering only)
ZFS Insertion depth of tool tip (abs or inc) - (for chamfering only)
* Unit of feedrate as programmed before the cycle call
8.4.5

Circular spigot (CYCLE77)

Function
You can mill various circular spigots with the "Circular spigot" function.
In addition to the required circular spigot, you must also define a blank spigot, i.e. the outer
limits of the material. The tool moves at rapid traverse outside this area. The blank spigot
must not overlap adjacent blank spigots and is automatically placed on the finished spigot in
a centered position.
The circular spigot is machined using only one infeed. If you want to machine the spigot
using multiple infeeds, you must program the "Circular spigot" function several times with a
reducing finishing allowance.
Clamping the spindle
For ShopTurn, the "Clamp spindle" function can be set up by the machine manufacturer.
See also
Clamping the spindle (Page 234)
404
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Operating Manual, 02/2012, 6FC5398-8CP40-3BA0
Unit
mm
mm
mm
mm
mm
mm
Turning