Siemens SINUMERIK 840D Programming Manual page 373

A
11.02
Standard cycles
Subroutine
T
Tapping with
compensating chuck
Text editor
Tool
Tool edge radius
compensation
Tool offset
Tool radius
compensation
ã Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition
Standard cycles are provided for machining operations which are
frequently repeated:
Cycles for drilling/milling applications
Cycles for turning applications (SINUMERIK FM-NC)
The available cycles are listed in menu "Cycle support" in the
"Program" operating area. Once the desired machining cycle has been
selected, the parameters required for assigning values are displayed
in plain text.
A sequence of instructions of a -> parts program which can be called
repetitively with various defining parameters. The subroutine is called
from a main program. Every subroutine can be protected against
unauthorized read-out and display. -> Cycles are a type of subroutine.
Tapping is carried out without spindle encoder (G33 or G63) ->
CYCLE840
-> Editor
A part used on the machine tool for machining. Examples of tools
include cutting tools, mills, drills, laser beams, etc.
When a contour is programmed, it is assumed that a pointed tool is
used. Since this is not always possible, the control makes allowance
for the curvature radius of the tool being used. The curvature centre
point displaced by the curvature radius is guided equidistantly to the
contour.
Turning and milling cycles select and deselect the cutting radius offset
internally.
A tool is selected through the programming of a T function (5
decades, integer) in the block. Up to nine cutting edges (D addresses)
can be assigned to each T number. The number of tools to be
managed in the control is set at the configuration stage.
In order to program a desired -> workpiece contour directly, the control
must traverse a path equidistant to the programmed contour with
allowance for the radius (G41/G42).
A
Appendix
Terms
A-373