Siemens SINUMERIK 828D Manual page 95

Important functions for 3- to 5-axis machining
The circumstances are different with ORIVECT. The vector is interpolated and not the rotary
axes. For this purpose, the differential angle J between the start vector t1 and the end vector t2 is
considered. This is divided into 9 equidistant increments ΔJ in accordance with the path motion.
The intermediate vectors defined as a result are all in a plane set up by t1 and t2. A surface is
therefore defined in workpiece coordinates, in this case a plane, on which the orientation vector
moves. The possible orientation interpolations are described in the following section.
Orientation reference to the coordinate system (ORIMKS, ORIWKS)
The reference for the rotary axis interpolation is defined using the G code commands ORIMKS/
ORIWKS.
ORIMKS Tool orientation in the machine coordinate system.
With ORIMKS, the programmed orientation relates to the coordinate system defined by the
machine axes. Rotations through frames are not taken into consideration here.
ORIWKS Tool orientation in the workpiece coordinate system.
With ORIWKS, the programmed orientation relates to the workpiece coordinate system that may
be rotated in relation to the machine coordinate system using a frame.
Orientation reference
ORIMKS
ORIWKS
(recommended)
© Siemens AG All rights reserved SINUMERIK, Manual, Mold-Making with 3- to 5-Axis Simultaneous Milling
The reference system for the orientation vector is the machine
coordinate system.
The reference system for the orientation vector is the workpiece
coordinate system. Machine data is used to determine precisely
what happens.
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