Transforming Coordinate Systems - Frames - Siemens SINUMERIK 828D Manual

3.3
TRAORI
74
Important functions for 3- to 5-axis machining
3.3

Transforming coordinate systems - Frames

Coordinate systems
1
2
Using frames it is possible to machine surfaces that can be shifted and rotated in space as
required. All subsequent traversing commands now relate to the new workpiece coordinate
system shifted using frames.
© Siemens AG All rights reserved SINUMERIK, Manual, Mold-Making with 3- to 5-Axis Simultaneous Milling
The tool is aligned with the machining surface
dynamically during the milling process by
means of linear and rotary axis interpolation.
The tool length is taken into account and the
kinematic compensatory movements are
initiated by the TRAORI function when the
rotary axes are rotated.
Machine coordinate system
point and zero offset (G54, G55, etc.) are
familiar terms.
Using frames, the coordinate systems can be
shifted, rotated, mirrored and scaled so that
they can be aligned with any workpiece
surface. This allows the programming
overhead to be reduced to a minimum.
With frames, starting from the current
workpiece coordinate system
of a target coordinate system is defined by
specifying coordinates and angles.
Possible frames include
Basic frame (basic offset, G500)
Settable frames (G54, G55, etc.)
Programmable frames (TRANS, ROT,
etc.)
with reference
1
, the position
2