Siemens SINUMERIK 840D sl Function Manual page 1895

Description of a rotation
A data block for describing a rotation comprises one vector v
rotation of the rotary axis in its initial state and an angle α1/α2. The angle of rotation is
counted positively for clockwise rotation facing the direction of the rotation vector.
The two toolholder angles α1 and α2 are determined using a frame, independent of the
active plane currently selected (G17 - G19).
The tool orientation in the initial state (both angles α1 and α2 are zero) is (as in the default
case):
• G17: Parallel to Z
• G18: Parallel to Y
• for G19: Parallel to X
Assigning data to the toolholder
Example of a machine with rotary toolholder
The following settings are obtained at the mill head shown for a machine with toolholder with
orientation capability of kinematic type T:
Component of the offset vector l
Component of the offset vector l
Component of offset vector l
Component of rotary axis v
Component of rotary axis v
Tool base dimension of tool
reference point
Note
The tool reference point for the tool base dimension is defined by the reference point at the
machine.
For more information about the reference points in the working area, please refer to:
References:
/FB1/ Function Manual Basic Functions; Axes, Coordinate Systems, Frames (K2).
Basic logic functions: Tool Offset (W1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
= (-200, 0, 0)
1
= (0, 0, 0)
2
= (-100, 0, 0)
3
= (1, 0, 0)
1
= (-1, 0, 1)
2
(0, 0, 250)
Detailed Description
2.5 Toolholder with orientation capability
/v to describe the direction of
1 2
107