Simulating Machining; Overview - Siemens SINUMERIK 840D sl Operating Manual

Simulating machining

5.1

Overview

During simulation, the current program is calculated in its entirety and the result displayed in
graphic form. The result of programming is verified without traversing the machine axes.
Incorrectly programmed machining steps are detected at an early stage and incorrect
machining on the workpiece prevented.
Graphic display
The simulation uses the correct proportions of the workpiece, tools, chuck, counterspindle
and tailstock for the screen display.
For the spindle chuck and the tailstock, dimensions are used that are entered into the
"Spindle Chuck Data" window.
For non-cylindrical blanks, the chuck closes up to the contour of the cube or polygon.
Depth display
The depth infeed is color-coded. The depth display indicates the actual depth at which
machining is currently taking place. The following applies to the color-coded depth display:
"The deeper, the darker".
Definition of blank
The blank dimensions that are entered in the program editor are used for the workpiece.
The blank is clamped with reference to the coordinate system, which is valid at the time that
the blank was defined. This means that before defining the blank in G code programs, the
required output conditions must be established, e.g. by selecting a suitable zero offset.
Programming a blank (example)
G54 G17 G90
WORKPIECE(,,,"Cylinder",112.0,-50,-80.00,155,100)
T="NC-SPOTDRILL_D16
Turning
Operating Manual, 03/2013, 6FC5398-8CP40-3BA1
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